1. SUMMARY OF THIS ACTION

ILLINOIS POLLUTION CONTROL BOARD
December 18, 2008
IN THE MATTER OF:
)
SDWA UPDATE, USEPA AMENDMENTS
(January 1, 2007 though June 30, 2007 and
June 3, 2008)
)
)
)
R08-7
(Identical-in-Substance
Rulemaking - Public Water Supply)
)
SDWA UPDATE, USEPA AMENDMENTS
(July 1, 2007 though December 31, 2007)
)
)
)
R08-13
(Identical-in-Substance
Rulemaking - Public Water Supply)
)
(Consolidated)
Adopted Rule. Final Order.
ORDER OF THE BOARD (by T.E. Johnson):
SUMMARY OF THIS ACTION
The Board today adopts amendments to the Illinois regulations that are “identical in
substance” to drinking water regulations adopted by the United States Environmental Protection
Agency (USEPA). The amendments involved in this consolidated docket incorporate into the
Illinois drinking water regulations amendments in response to two USEPA actions. Those
actions span the two identical-in-substance update periods of January 1, 2007 through June 30,
2007 and July 1, 2007 through December 31, 2007. The Board has added a third set of USEPA
amendments that occurred later than these periods. The added later amendments are closely
related to amendments that occurred during the January 1, 2007 through June 30, 2007 time
period.
The R08-7 docket includes federal Safe Drinking Water Act (SDWA) amendments that
USEPA adopted in the period January 1, 2007 though June 30, 2007, and on June 3, 2008. On
March 12, 2007, USEPA adopted amendments relating to analytical methods approved under the
wastewater pretreatment and drinking water programs. On June 3, 2008, USEPA approved
alternative methods for analysis under the drinking water program.
The R08-13 docket includes federal SDWA amendments that USEPA adopted in the
period July 1, 2007 though December 31, 2007. On October 10, 2007, USEPA revised segments
of the Lead and Copper Rule under the drinking water regulations.
Sections 7.2 and 17.5 of the Act (415 ILCS 5/7.2 and 17.5 (2006)) provide for quick
adoption by the Board of regulations that are identical in substance to federal regulations that
USEPA adopts to implement Sections 1412(b), 1414(c), 1417(a), and 1445(a) of the federal
SDWA (42 U.S.C. §§ 300g-1(a), 300g-3(c), 300g-6(a), and 300j-4(a) (2006)). The USEPA
National Primary Drinking Water Regulations (NPDWRs) implement Sections 1412(b), 1414(c),
1417(a), and 1445(a) of the federal SDWA (42 U.S.C. §§ 300g-1(a), 300g-3(c), 300g-6(a), and
300j-4(a) (2006)). The federal SDWA regulations are found at 40 C.F.R. 141 through 143.

2
Section 17.5 also provides that Title VII of the Act and Section 5 of the APA (5 ILCS 100/5-35
and 5-40 (2006)) do not apply to the Board’s adoption of identical-in-substance regulations.
This opinion supports an order that the Board also adopts today. The rules will be
adopted and filed no later than December 31, 2008, pursuant to the extension of the deadline
adopted by the Board in this opinion and order pursuant to Section 7.2(b) of the Act (415 ILCS
5/7.2(b) (2006)).
The Clerk is directed to cause the filing of the following adopted amendments with the
Office of the Secretary of State:
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE F: PUBLIC WATER SUPPLIES
CHAPTER I: POLLUTION CONTROL BOARD
PART 611
PRIMARY DRINKING WATER STANDARDS
SUBPART A: GENERAL
Section
611.100
Purpose, Scope, and Applicability
611.101
Definitions
611.102
Incorporations by Reference
611.103
Severability
611.105
Electronic Reporting
611.107
Agency Inspection of PWS Facilities
611.108
Delegation to Local Government
611.109
Enforcement
611.110
Special Exception Permits
611.111
Relief Equivalent to SDWA Section 1415(a) Variances
611.112
Relief Equivalent to SDWA Section 1416 Exemptions
611.113
Alternative Treatment Techniques
611.114
Siting Requirements
611.115
Source Water Quantity
611.120
Effective Dates
611.121
Maximum Contaminant Levels and Finished Water Quality
611.125
Fluoridation Requirement
611.126
Prohibition on Use of Lead
611.130
Special Requirements for Certain Variances and Adjusted Standards
611.131
Relief Equivalent to SDWA Section 1415(e) Small System Variance
611.160
Composite Correction Program
611.161
Case-by-Case Reduced Subpart Y Monitoring for Wholesale and Consecutive
Systems

3
SUBPART B: FILTRATION AND DISINFECTION
Section
611.201
Requiring a Demonstration
611.202
Procedures for Agency Determinations
611.211
Filtration Required
611.212
Groundwater under Direct Influence of Surface Water
611.213
No Method of HPC Analysis
611.220
General Requirements
611.230
Filtration Effective Dates
611.231
Source Water Quality Conditions
611.232
Site-Specific Conditions
611.233
Treatment Technique Violations
611.240
Disinfection
611.241
Unfiltered PWSs
611.242
Filtered PWSs
611.250
Filtration
611.261
Unfiltered PWSs: Reporting and Recordkeeping
611.262
Filtered PWSs: Reporting and Recordkeeping
611.271
Protection during Repair Work
611.272
Disinfection Following Repair
611.276
Recycle Provisions
SUBPART C: USE OF NON-CENTRALIZED TREATMENT DEVICES
Section
611.280
Point-of-Entry Devices
611.290
Use of Point-of-Use Devices or Bottled Water
SUBPART D: TREATMENT TECHNIQUES
Section
611.295
General Requirements
611.296
Acrylamide and Epichlorohydrin
611.297
Corrosion Control
SUBPART F: MAXIMUM CONTAMINANT LEVELS (MCLs) AND
MAXIMUM RESIDUAL DISINFECTANT LEVELS (MRDLs)
Section
611.300
Old MCLs for Inorganic Chemical Contaminants
611.301
Revised MCLs for Inorganic Chemical Contaminants
611.310
State-Only Maximum Contaminant Levels (MCLs) for Organic Chemical
Contaminants
611.311
Revised MCLs for Organic Chemical Contaminants
611.312
Maximum Contaminant Levels (MCLs) for Disinfection Byproducts (DBPs)
611.313
Maximum Residual Disinfectant Levels (MRDLs)
611.320
Turbidity (Repealed)
611.325
Microbiological Contaminants
611.330
Maximum Contaminant Levels for Radionuclides

4
611.331
Beta Particle and Photon Radioactivity (Repealed)
SUBPART G: LEAD AND COPPER
Section
611.350
General Requirements
611.351
Applicability of Corrosion Control
611.352
Corrosion Control Treatment
611.353
Source Water Treatment
611.354
Lead Service Line Replacement
611.355
Public Education and Supplemental Monitoring
611.356
Tap Water Monitoring for Lead and Copper
611.357
Monitoring for Water Quality Parameters
611.358
Monitoring for Lead and Copper in Source Water
611.359
Analytical Methods
611.360
Reporting
611.361
Recordkeeping
SUBPART I: DISINFECTANT RESIDUALS, DISINFECTION BYPRODUCTS,
AND DISINFECTION BYPRODUCT PRECURSORS
Section
611.380
General Requirements
611.381
Analytical Requirements
611.382
Monitoring Requirements
611.383
Compliance Requirements
611.384
Reporting and Recordkeeping Requirements
611.385
Treatment Technique for Control of Disinfection Byproduct (DBP) Precursors
SUBPART K: GENERAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section
611.480
Alternative Analytical Techniques
611.490
Certified Laboratories
611.491
Laboratory Testing Equipment
611.500
Consecutive PWSs
611.510
Special Monitoring for Unregulated Contaminants (Repealed)
SUBPART L: MICROBIOLOGICAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section
611.521
Routine Coliform Monitoring
611.522
Repeat Coliform Monitoring
611.523
Invalidation of Total Coliform Samples
611.524
Sanitary Surveys
611.525
Fecal Coliform and E. Coli Testing
611.526
Analytical Methodology
611.527
Response to Violation

5
611.531
Analytical Requirements
611.532
Unfiltered PWSs
611.533
Filtered PWSs
SUBPART M: TURBIDITY MONITORING AND ANALYTICAL
REQUIREMENTS
Section
611.560
Turbidity
SUBPART N: INORGANIC MONITORING AND ANALYTICAL
REQUIREMENTS
Section
611.591
Violation of a State MCL
611.592
Frequency of State Monitoring
611.600
Applicability
611.601
Monitoring Frequency
611.602
Asbestos Monitoring Frequency
611.603
Inorganic Monitoring Frequency
611.604
Nitrate Monitoring
611.605
Nitrite Monitoring
611.606
Confirmation Samples
611.607
More Frequent Monitoring and Confirmation Sampling
611.608
Additional Optional Monitoring
611.609
Determining Compliance
611.610
Inorganic Monitoring Times
611.611
Inorganic Analysis
611.612
Monitoring Requirements for Old Inorganic MCLs
611.630
Special Monitoring for Sodium
611.631
Special Monitoring for Inorganic Chemicals (Repealed)
SUBPART O: ORGANIC MONITORING AND ANALYTICAL REQUIREMENTS
Section
611.640
Definitions
611.641
Old MCLs
611.645
Analytical Methods for Organic Chemical Contaminants
611.646
Phase I, Phase II, and Phase V Volatile Organic Contaminants
611.647
Sampling for Phase I Volatile Organic Contaminants (Repealed)
611.648
Phase II, Phase IIB, and Phase V Synthetic Organic Contaminants
611.650
Monitoring for 36 Contaminants (Repealed)
611.657
Analytical Methods for 36 Contaminants (Repealed)
611.658
Special Monitoring for Organic Chemicals (Repealed)
SUBPART P: THM MONITORING AND ANALYTICAL REQUIREMENTS
Section
611.680
Sampling, Analytical, and other Requirements
611.683
Reduced Monitoring Frequency (Repealed)

6
611.684
Averaging (Repealed)
611.685
Analytical Methods
611.686
Modification to System (Repealed)
611.687
Sampling for THM Potential (Repealed)
611.688
Applicability Dates (Repealed)
SUBPART Q: RADIOLOGICAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section
611.720
Analytical Methods
611.731
Gross Alpha
611.732
Beta Particle and Photon Radioactivity
611.733
General Monitoring and Compliance Requirements
SUBPART R: ENHANCED FILTRATION AND DISINFECTION: SYSTEMS
THAT SERVE 10,000 OR MORE PEOPLE
Section
611.740
General Requirements
611.741
Standards for Avoiding Filtration
611.742
Disinfection Profiling and Benchmarking
611.743
Filtration
611.744
Filtration Sampling Requirements
611.745
Reporting and Recordkeeping Requirements
SUBPART S: GROUNDWATER RULE
Section
611.800
General Requirements and Applicability
611.801
Sanitary Surveys for GWS Suppliers
611.802
Groundwater Source Microbial Monitoring and Analytical Methods
611.803
Treatment Technique Requirements for GWS Suppliers
611.804
Treatment Technique Violations for GWS Suppliers
611.805
Reporting and Recordkeeping for GWS Suppliers
SUBPART T: REPORTING AND RECORDKEEPING
Section
611.830
Applicability
611.831
Monthly Operating Report
611.832
Notice by Agency (Repealed)
611.833
Cross Connection Reporting
611.840
Reporting
611.851
Reporting MCL, MRDL, and other Violations (Repealed)
611.852
Reporting other Violations (Repealed)
611.853
Notice to New Billing Units (Repealed)
611.854
General Content of Public Notice (Repealed)
611.855
Mandatory Health Effects Language (Repealed)
611.856
Fluoride Notice (Repealed)

7
611.858
Fluoride Secondary Standard (Repealed)
611.860
Record Maintenance
611.870
List of 36 Contaminants (Repealed)
SUBPART U: CONSUMER CONFIDENCE REPORTS
Section
611.881
Purpose and Applicability
611.882
Compliance Dates
611.883
Content of the Reports
611.884
Required Additional Health Information
611.885
Report Delivery and Recordkeeping
SUBPART V: PUBLIC NOTIFICATION OF DRINKING WATER
VIOLATIONS
Section
611.901
General Public Notification Requirements
611.902
Tier 1 Public Notice: Form, Manner, and Frequency of Notice
611.903
Tier 2 Public Notice: Form, Manner, and Frequency of Notice
611.904
Tier 3 Public Notice: Form, Manner, and Frequency of Notice
611.905
Content of the Public Notice
611.906
Notice to New Billing Units or New Customers
611.907
Special Notice of the Availability of Unregulated Contaminant Monitoring
Results
611.908
Special Notice for Exceedence of the Fluoride Secondary Standard
611.909
Special Notice for Nitrate Exceedences above the MCL by a Non-Community
Water System
611.910
Notice by the Agency on Behalf of a PWS
611.911
Special Notice for Cryptosporidium
SUBPART W: INITIAL DISTRIBUTION SYSTEM EVALUATIONS
Section
611.920
General Requirements
611.921
Standard Monitoring
611.922
System-Specific Studies
611.923
40/30 Certification
611.924
Very Small System Waivers
611.925
Subpart Y Compliance Monitoring Location Recommendations
SUBPART X: ENHANCED FILTRATION AND DISINFECTION—SYSTEMS
SERVING FEWER THAN 10,000 PEOPLE
Section
611.950
General Requirements
611.951
Finished Water Reservoirs
611.952
Additional Watershed Control Requirements for Unfiltered Systems
611.953
Disinfection Profile
611.954
Disinfection Benchmark

8
611.955
Combined Filter Effluent Turbidity Limits
611.956
Individual Filter Turbidity Requirements
611.957
Reporting and Recordkeeping Requirements
SUBPART Y—STAGE Y: STAGE 2 DISINFECTION BYPRODUCTS
REQUIREMENTS
Section
611.970
General Requirements
611.971
Routine Monitoring
611.972
Subpart Y Monitoring Plan
611.973
Reduced Monitoring
611.974
Additional Requirements for Consecutive Systems
611.975
Conditions Requiring Increased Monitoring
611.976
Operational Evaluation Levels
611.977
Requirements for Remaining on Reduced TTHM and HAA5 Monitoring Based
on Subpart I Results
611.978
Requirements for Remaining on Increased TTHM and HAA5 Monitoring Based
on Subpart I Results
611.979
Reporting and Recordkeeping Requirements
SUBPART Z: ENHANCED TREATMENT FOR CRYPTOSPORIDIUM
Section
611.1000
General Requirements
611.1001
Source Water Monitoring Requirements: Source Water Monitoring
611.1002
Source Water Monitoring Requirements: Sampling Schedules
611.1003
Source Water Monitoring Requirements: Sampling Locations
611.1004
Source Water Monitoring Requirements: Analytical Methods
611.1005
Source Water Monitoring Requirements: Approved Laboratories
611.1006
Source Water Monitoring Requirements: Reporting Source Water Monitoring
Results
611.1007
Source Water Monitoring Requirements: Grandfathering Previously Collected
Data
611.1008
Disinfection Profiling and Benchmarking Requirements: Requirements When
Making a Significant Change in Disinfection Practice
611.1009
Disinfection Profiling and Benchmarking Requirements: Developing the
Disinfection Profile and Benchmark
611.1010
Treatment Technique Requirements: Bin Classification for Filtered Systems
611.1011
Treatment Technique Requirements: Filtered System Additional
Cryptosporidium Treatment Requirements
611.1012
Treatment Technique Requirements: Unfiltered System Cryptosporidium
Treatment Requirements
611.1013
Treatment Technique Requirements: Schedule for Compliance with
Cryptosporidium Treatment Requirements
611.1014
Treatment Technique Requirements: Requirements for Uncovered Finished
Water Storage Facilities
611.1015
Requirements for Microbial Toolbox Components: Microbial Toolbox Options

9
for Meeting Cryptosporidium Treatment Requirements
611.1016
Requirements for Microbial Toolbox Components: Source Toolbox Components
611.1017
Requirements for Microbial Toolbox Components: Pre-Filtration Treatment
Toolbox Components
611.1018
Requirements for Microbial Toolbox Components: Treatment Performance
Toolbox Components
611.1019
Requirements for Microbial Toolbox Components: Additional Filtration Toolbox
Components
611.1020
Requirements for Microbial Toolbox Components: Inactivation Toolbox
Components
611.1021
Reporting and Recordkeeping Requirements: Reporting Requirements
611.1022
Reporting and Recordkeeping Requirements: Recordkeeping Requirements
611.1023
Requirements to Respond to Significant Deficiencies Identified in Sanitary
Surveys Performed by USEPA or the Agency
611.APPENDIX A
Regulated Contaminants
611.APPENDIX B
Percent Inactivation of G. Lamblia Cysts
611.APPENDIX C
Common Names of Organic Chemicals
611.APPENDIX D
Defined Substrate Method for the Simultaneous Detection of Total Coliforms
and Eschericia Coli from Drinking Water
611.APPENDIX E
Mandatory Lead Public Education Information for Community Water
Systems
611.APPENDIX F
Mandatory Lead Public Education Information for Non-Transient Non-
Community Water Systems
611.APPENDIX G
NPDWR Violations and Situations Requiring Public Notice
611.APPENDIX H
Standard Health Effects Language for Public Notification
611.APPENDIX I
Acronyms Used in Public Notification Regulation
611.TABLE A
Total Coliform Monitoring Frequency
611.TABLE B
Fecal or Total Coliform Density Measurements
611.TABLE C
Frequency of RDC Measurement
611.TABLE D
Number of Lead and Copper Monitoring Sites
611.TABLE E
Lead and Copper Monitoring Start Dates
611.TABLE F
Number of Water Quality Parameter Sampling Sites
611.TABLE G
Summary of Section 611.357 Monitoring Requirements for Water Quality
Parameters
611.TABLE H
CT Values (mg.min/ℓ) for Cryptosporidium Inactivation by Chlorine
Dioxide
611.TABLE I
CT Values (mg.min/ℓ) for Cryptosporidium Inactivation by Ozone
611.TABLE J
UV Dose Table for Cryptosporidium, Giardia lamblia, and Virus
Inactivation Credit
611.TABLE Z
Federal Effective Dates
AUTHORITY: Implementing Sections 7.2, 17, and 17.5 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/7.2, 17, 17.5, and 27].
SOURCE: Adopted in R88-26 at 14 Ill. Reg. 16517, effective September 20, 1990; amended in

10
R90-21 at 14 Ill. Reg. 20448, effective December 11, 1990; amended in R90-13 at 15 Ill. Reg. 1562,
effective January 22, 1991; amended in R91-3 at 16 Ill. Reg. 19010, effective December 1, 1992;
amended in R92-3 at 17 Ill. Reg. 7796, effective May 18, 1993; amended in R93-1 at 17 Ill. Reg.
12650, effective July 23, 1993; amended in R94-4 at 18 Ill. Reg. 12291, effective July 28, 1994;
amended in R94-23 at 19 Ill. Reg. 8613, effective June 20, 1995; amended in R95-17 at 20 Ill. Reg.
14493, effective October 22, 1996; amended in R98-2 at 22 Ill. Reg. 5020, effective March 5,
1998; amended in R99-6 at 23 Ill. Reg. 2756, effective February 17, 1999; amended in R99-12 at 23
Ill. Reg. 10348, effective August 11, 1999; amended in R00-8 at 23 Ill. Reg. 14715, effective
December 8, 1999; amended in R00-10 at 24 Ill. Reg. 14226, effective September 11, 2000;
amended in R01-7 at 25 Ill. Reg. 1329, effective January 11, 2001; amended in R01-20 at 25 Ill.
Reg. 13611, effective October 9, 2001; amended in R02-5 at 26 Ill. Reg. 3522, effective
February 22, 2002; amended in R03-4 at 27 Ill. Reg. 1183, effective January 10, 2003; amended
in R03-15 at 27 Ill. Reg. 16447, effective October 10, 2003; amended in R04-3 at 28 Ill. Reg.
5269, effective March 10, 2004; amended in R04-13 at 28 Ill. Reg. 12666, effective August 26,
2004; amended in R05-6 at 29 Ill. Reg. 2287, effective January 28, 2005; amended in R06-15 at
30 Ill. Reg. 17004, effective October 13, 2006; amended in R07-2/R07-11 at 31 Ill. Reg. 31 Ill.
Reg. 11757, effective July 27, 2007; amended in R08-5/R08-7/R08-13 at 33 Ill. Reg. ________,
effective ______________________.
SUBPART A: GENERAL
Section 611.101
Definitions
As used in this Part, the following terms have the given meanings:
“Act” means the Environmental Protection Act [415 ILCS 5].
“Agency” means the Illinois Environmental Protection Agency.
BOARD NOTE: The Department of Public Health (Public Health or DPH)
regulates non-community water supplies (“non-CWSs,” including non-transient,
non-community water supplies (“NTNCWSs”) and transient non-community water
supplies (“transient non-CWSs”)). For the purposes of regulation of supplies by
Public Health by reference to this Part, “Agency” will mean the Department of
Public Health.
“Approved source of bottled water,” for the purposes of Section 611.130(d)(4),
means a source of water and the water therefrom, whether it be from a spring,
artesian well, drilled well, municipal water supply, or any other source, that has been
inspected and the water sampled, analyzed, and found to be a safe and sanitary
quality according to applicable laws and regulations of State and local government
agencies having jurisdiction, as evidenced by the presence in the plant of current
certificates or notations of approval from each government agency or agencies
having jurisdiction over the source, the water it bottles, and the distribution of the
water in commerce.
BOARD NOTE: Derived from 40 CFR 142.62(g)(2) and 21 CFR 129.3(a) (2006)
(2007)
. The Board cannot compile an exhaustive listing of all federal, State, and

11
local laws to which bottled water and bottling water may be subjected. However, the
statutes and regulations of which the Board is aware are the following: the Illinois
Food, Drug and Cosmetic Act [410 ILCS 620], the Bottled Water Act [815 ILCS
310], the DPH Water Well Construction Code (77 Ill. Adm. Code 920), the DPH
Water Well Pump Installation Code (77 Ill. Adm. Code 925), the federal bottled
water quality standards (21 CFR 103.35), the federal drinking water processing and
bottling standards (21 CFR 129), the federal Current Good Manufacturing Practice in
Manufacturing, Packing, or Holding Human Food (21 CFR 110), the federal Fair
Packaging and Labeling Act (15 USC 1451 et seq.), and the federal Fair Packaging
and Labeling regulations (21 CFR 201).
“Bag filters” means pressure-driven separation devices that remove particulate
matter larger than one micrometer using an engineered porous filtration media.
They are typically constructed of a non-rigid, fabric filtration media housed in a
pressure vessel in which the direction of flow is from the inside of the bag to
outside.
“Bank filtration” means a water treatment process that uses a well to recover
surface water that has naturally infiltrated into groundwater through a river bed or
banks. Infiltration is typically enhanced by the hydraulic gradient imposed by a
nearby pumping water supply or other wells.
“Best available technology” or “BAT” means the best technology, treatment
techniques, or other means that USEPA has found are available for the contaminant
in question. BAT is specified in Subpart F of this Part.
“Bin classification” or “bin” means, for the purposes of Subpart Z of this Part, the
appropriate of the four treatment categories (Bin 1, Bin 2, Bin 3, or Bin 4) that is
assigned to a filtered system supplier pursuant to Section 611.1010 based on the
results of the source water Cryptosporidium monitoring described in the previous
section. This bin classification determines the degree of additional
Cryptosporidium treatment, if any, the filtered PWS must provide.
BOARD NOTE: Derived from 40 CFR 141.710 and the preamble discussion at
71 Fed. Reg. 654, 657 (Jan. 5, 2006).
“Board” means the Illinois Pollution Control Board.
“Cartridge filters” means pressure-driven separation devices that remove
particulate matter larger than 1 micrometer using an engineered porous filtration
media. They are typically constructed as rigid or semi-rigid, self-supporting filter
elements housed in pressure vessels in which flow is from the outside of the
cartridge to the inside.
“CAS No.” means “Chemical Abstracts Services Number.”
“CT” or “CT
calc
” is the product of “residual disinfectant concentration” (RDC or C)

12
in mg/ℓ determined before or at the first customer, and the corresponding
“disinfectant contact time” (T) in minutes. If a supplier applies disinfectants at more
than one point prior to the first customer, it must determine the CT of each
disinfectant sequence before or at the first customer to determine the total percent
inactivation or “total inactivation ratio.” In determining the total inactivation ratio,
the supplier must determine the RDC of each disinfection sequence and
corresponding contact time before any subsequent disinfection application points.
(See “CT
99.9
.”)
“CT
99.9
” is the CT value required for 99.9 percent (3-log) inactivation of Giardia
lamblia cysts. CT
99.9
for a variety of disinfectants and conditions appear in Tables
1.1-1.6, 2.1 and 3.1 of Appendix B of this Part. (See “Inactivation Ratio.”)
BOARD NOTE: Derived from the definition of “CT” in 40 CFR 141.2 (2006)
(2007).
“Coagulation” means a process using coagulant chemicals and mixing by which
colloidal and suspended materials are destabilized and agglomerated into flocs.
“Combined distribution system” means the interconnected distribution system
consisting of the distribution systems of wholesale systems and of the consecutive
systems that receive finished water.
“Community water system” or “CWS” means a public water system (PWS) that
serves at least 15 service connections used by year-round residents or regularly
serves at least 25 year-round residents.
BOARD NOTE: This definition differs slightly from that of Section 3.05 of the Act.
“Compliance cycle” means the nine-year calendar year cycle during which public
water systems (PWSs) must monitor. Each compliance cycle consists of three three-
year compliance periods. The first calendar cycle began January 1, 1993, and ended
December 31, 2001; the second began January 1, 2002, and ends December 31,
2010; the third begins January 1, 2011, and ends December 31, 2019.
“Compliance period” means a three-year calendar year period within a compliance
cycle. Each compliance cycle has three three-year compliance periods. Within the
first compliance cycle, the first compliance period ran from January 1, 1993 to
December 31, 1995; the second from January 1, 1996 to December 31, 1998; the
third from January 1, 1999 to December 31, 2001.
“Comprehensive performance evaluation” or “CPE” is a thorough review and
analysis of a treatment plant’s performance-based capabilities and associated
administrative, operation, and maintenance practices. It is conducted to identify
factors that may be adversely impacting a plant’s capability to achieve
compliance and emphasizes approaches that can be implemented without
significant capital improvements.
BOARD NOTE: The final sentence of the definition of “comprehensive

13
performance evaluation” in 40 CFR 141.2 is codified as Section 611.160(a)(2),
since it contains substantive elements that are more appropriately codified in a
substantive provision.
“Confluent growth” means a continuous bacterial growth covering the entire
filtration area of a membrane filter or a portion thereof, in which bacterial colonies
are not discrete.
“Consecutive system” means a public water system that receives some or all of its
finished water from one or more wholesale systems. Delivery may be through a
direct connection or through the distribution system of one or more consecutive
systems.
“Contaminant” means any physical, chemical, biological, or radiological substance
or matter in water.
“Conventional filtration treatment” means a series of processes including
coagulation, flocculation, sedimentation, and filtration resulting in substantial
particulate removal.
“Diatomaceous earth filtration” means a process resulting in substantial particulate
removal in which the following occur:
A precoat cake of diatomaceous earth filter media is deposited on a support
membrane (septum); and
While the water is filtered by passing through the cake on the septum,
additional filter media known as body feed is continuously added to the feed
water to maintain the permeability of the filter cake.
“Direct filtration” means a series of processes including coagulation and filtration but
excluding sedimentation resulting in substantial particulate removal.
“Disinfectant” means any oxidant, including but not limited to chlorine, chlorine
dioxide, chloramines, and ozone added to water in any part of the treatment or
distribution process, that is intended to kill or inactivate pathogenic microorganisms.
“Disinfectant contact time” or “T” means the time in minutes that it takes for water
to move from the point of disinfectant application or the previous point of RDC
measurement to a point before or at the point where RDC is measured.
Where only one RDC is measured, T is the time in minutes that it takes for
water to move from the point of disinfectant application to a point before or
at the point where RDC is measured.
Where more than one RDC is measured, T is as follows:

14
For the first measurement of RDC, the time in minutes that it takes
for water to move from the first or only point of disinfectant
application to a point before or at the point where the first RDC is
measured; and
For subsequent measurements of RDC, the time in minutes that it
takes for water to move from the previous RDC measurement point
to the RDC measurement point for which the particular T is being
calculated.
T in pipelines must be calculated based on “plug flow” by dividing the
internal volume of the pipe by the maximum hourly flow rate through that
pipe.
T within mixing basins and storage reservoirs must be determined by tracer
studies or an equivalent demonstration.
“Disinfection” means a process that inactivates pathogenic organisms in water by
chemical oxidants or equivalent agents.
“Disinfection byproduct” or “DBP” means a chemical byproduct that forms when
disinfectants used for microbial control react with naturally occurring compounds
already present in source water. DBPs include, but are not limited to,
bromodichloromethane, bromoform, chloroform, dichloroacetic acid, bromate,
chlorite, dibromochloromethane, and certain haloacetic acids.
“Disinfection profile” is a summary of daily Giardia lamblia inactivation through
the treatment plant. The procedure for developing a disinfection profile is
contained in Section 611.742.
“Distribution system” includes all points downstream of an “entry point” to the point
of consumer ownership.
“Domestic or other non-distribution system plumbing problem” means a coliform
contamination problem in a PWS with more than one service connection that is
limited to the specific service connection from which the coliform-positive sample
was taken.
“Dose equivalent” means the product of the absorbed dose from ionizing radiation
and such factors as account for differences in biological effectiveness due to the type
of radiation and its distribution in the body as specified by the International
Commission on Radiological Units and Measurements (ICRU).
“Dual sample set” means a set of two samples collected at the same time and
same location, with one sample analyzed for TTHM and the other sample

15
analyzed for HAA5. Dual sample sets are collected for the purposes of conducting
an IDSE under Subpart W of this Part and determining compliance with the
TTHM and HAA5 MCLs under Subpart Y of this Part.
“Enhanced coagulation” means the addition of sufficient coagulant for improved
removal of disinfection byproduct (DBP) precursors by conventional filtration
treatment.
“Enhanced softening” means the improved removal of disinfection byproduct
(DBP) precursors by precipitative softening.
“Entry point” means a point just downstream of the final treatment operation, but
upstream of the first user and upstream of any mixing with other water. If raw water
is used without treatment, the “entry point” is the raw water source. If a PWS
receives treated water from another PWS, the “entry point” is a point just
downstream of the other PWS, but upstream of the first user on the receiving PWS,
and upstream of any mixing with other water.
“Filter profile” is a graphical representation of individual filter performance,
based on continuous turbidity measurements or total particle counts versus time
for an entire filter run, from startup to backwash inclusively, that includes an
assessment of filter performance while another filter is being backwashed.
“Filtration” means a process for removing particulate matter from water by passage
through porous media.
“Finished water” means water that is introduced into the distribution system of a
public water system which is intended for distribution and consumption without
further treatment, except that treatment which is necessary to maintain water
quality in the distribution system (e.g., booster disinfection, addition of corrosion
control chemicals, etc.).
“Flocculation” means a process to enhance agglomeration or collection of smaller
floc particles into larger, more easily settleable particles through gentle stirring by
hydraulic or mechanical means.
“Flowing stream” means a course of running water flowing in a definite channel.
“40/30 certification” means the certification, submitted by the supplier to the
Agency pursuant to Section 611.923, that the supplier had no TTHM or HAA5
monitoring violations, and that no individual sample from its system exceeded
0.040 mg/ℓ TTHM or 0.030 mg/ℓ HAA5 during eight consecutive calendar
quarters.
BOARD NOTE: Derived from 40 CFR 141.603(a) (2006) (2007).
“GAC10” means granular activated carbon (GAC) filter beds with an empty-bed

16
contact time of 10 minutes based on average daily flow and a carbon reactivation
frequency of every 180 days, except that the reactivation frequency for GAC10
that is used as a best available technology for compliance with the MCLs set forth
in Subpart Y of this Part pursuant to Section 611.312(b)(2) is 120 days.
“GAC20” means granular activated carbon filter beds with an empty-bed contact
time of 20 minutes based on average daily flow and a carbon reactivation
frequency of every 240 days.
“GC” means “gas chromatography” or “gas-liquid phase chromatography.”
“GC/MS” means gas chromatography (GC) followed by mass spectrometry (MS).
“Gross alpha particle activity” means the total radioactivity due to alpha particle
emission as inferred from measurements on a dry sample.
“Gross beta particle activity” means the total radioactivity due to beta particle
emission as inferred from measurements on a dry sample.
“Groundwater system” or “GWS” means a public water supply (PWS) that uses
only groundwater sources, including a consecutive system that receives finished
groundwater.
BOARD NOTE: Derived from 40 CFR 141.23(b)(2) and 141.24(f)(2) note
(2006) and 40 CFR 141.400(b), as added at 71 Fed. Reg. 65576 (Nov. 8, 2006)
(2007).
“Groundwater under the direct influence of surface water” means any water beneath
the surface of the ground with significant occurrence of insects or other
macroorganisms, algae, or large-diameter pathogens, such as Giardia lamblia or
Cryptosporidium, or significant and relatively rapid shifts in water characteristics,
such as turbidity, temperature, conductivity, or pH, that closely correlate to
climatological or surface water conditions. “Groundwater under the direct
influence of surface water” is as determined in Section 611.212.
“Haloacetic acids (five)” or “HAA5” means the sum of the concentrations in
milligrams per liter (mg/ℓ) of five haloacetic acid compounds (monochloroacetic
acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, and
dibromoacetic acid), rounded to two significant figures after addition.
“Halogen” means one of the chemical elements chlorine, bromine, or iodine.
“HPC” means “heterotrophic plate count,” measured as specified in Section
611.531(c).
“Hydrogeologic sensitivity assessment,” for the purposes of Subpart S of this
Part, means a determination of whether a GWS supplier obtains water from a

17
hydrogeologically sensitive setting.
BOARD NOTE: Derived from 40 CFR 141.400(c)(5), as added at 71 Fed. Reg.
65574 (Nov. 8, 2006) (2007).
“Inactivation ratio” or “Ai” means as follows:
Ai = CT
calc
/CT
99.9
The sum of the inactivation ratios, or “total inactivation ratio” (B), is
calculated by adding together the inactivation ratio for each disinfection
sequence as follows:
B =
∑(Ai)
A total inactivation ratio equal to or greater than 1.0 is assumed to provide a
3-log inactivation of Giardia lamblia cysts.
BOARD NOTE: Derived from the definition of “CT” in 40 CFR 141.2 (2006)
(2007).
“Initial compliance period” means the three-year compliance period that begins
January 1, 1993, except for the MCLs for dichloromethane, 1,2,4-trichlorobenzene,
1,1,2-trichloroethane, benzo(a)pyrene, dalapon, di(2-ethylhexyl)adipate, di(2-ethyl-
hexyl)phthalate, dinoseb, diquat, endothall, endrin, glyphosate, hexachlorobenzene,
hexachlorocyclopentadiene, oxamyl, picloram, simazine, 2,3,7,8-TCDD, antimony,
beryllium, cyanide, nickel, and thallium, as they apply to a supplier whose system
has fewer than 150 service connections, for which it means the three-year
compliance period that began on January 1, 1996.
“Initial distribution system evaluation” or “IDSE” means the evaluation,
performed by the supplier pursuant to Section 611.921(c), to determine the
locations in a distribution system that are representative of high TTHM and
HAA5 concentrations throughout the distribution system. An IDSE is used in
conjunction with, but is distinct from, the compliance monitoring undertaken to
identify and select monitoring locations used to determine compliance with
Subpart X
I of this Part.
BOARD NOTE: Derived from 40 CFR 611.601(c) (2006)
141.601(c) (2007).
“Inorganic contaminants” or “IOCs” refers to that group of contaminants
designated as such in United States Environmental Protection Agency (USEPA)
regulatory discussions and guidance documents. IOCs include antimony, arsenic,
asbestos, barium, beryllium, cadmium, chromium, cyanide, mercury, nickel,
nitrate, nitrite, selenium, and thallium.
BOARD NOTE: The IOCs are derived from 40 CFR 141.23(a)(4) (2006)
(2007).
“ℓ” means “liter.”

18
“Lake or reservoir” means a natural or man made basin or hollow on the Earth’s
surface in which water collects or is stored that may or may not have a current or
single direction of flow.
“Legionella” means a genus of bacteria, some species of which have caused a type of
pneumonia called Legionnaires Disease.
“Locational running annual average” or “LRAA” means the average of sample
analytical results for samples taken at a particular monitoring location during the
previous four calendar quarters.
“Man-made beta particle and photon emitters” means all radionuclides emitting beta
particles or photons listed in “Maximum Permissible Body Burdens and Maximum
Permissible Concentrations of Radionuclides in Air and in Water for Occupational
Exposure,” NCRP Report Number 22, incorporated by reference in Section 611.102,
except the daughter products of thorium-232, uranium-235 and uranium-238.
“Maximum contaminant level” or “MCL” means the maximum permissible level of
a contaminant in water that is delivered to any user of a public water system. (See
Section 611.121.)
“Maximum contaminant level goal” or “MCLG” means the maximum level of a
contaminant in drinking water at which no known or anticipated adverse effect on
the health of persons would occur, and which allows an adequate margin of
safety. MCLGs are nonenforceable health goals.
BOARD NOTE: The Board has not routinely adopted the regulations relating to
the federal MCLGs because they are outside the scope of the Board’s identical-in-
substance mandate under Section 17.5 of the Act [415 ILCS 5/17.5].
“Maximum residual disinfectant level” or “MRDL” means the maximum
permissible level of a disinfectant added for water treatment that may not be
exceeded at the consumer’s tap without an unacceptable possibility of adverse
health effects. MRDLs are enforceable in the same manner as are MCLs. (See
Section 611.313 and Section 611.383.)
“Maximum residual disinfectant level goal” or “MRDLG” means the maximum
level of a disinfectant added for water treatment at which no known or anticipated
adverse effect on the health of persons would occur, and which allows an
adequate margin of safety. MRDLGs are nonenforceable health goals and do not
reflect the benefit of the addition of the chemical for control of waterborne
microbial contaminants.
“Maximum total trihalomethane potential” or “MTP” means the maximum
concentration of total trihalomethanes (TTHMs) produced in a given water
containing a disinfectant residual after seven days at a temperature of 25° C or above.

19
“Membrane filtration” means a pressure or vacuum driven separation process in
which particulate matter larger than one micrometer is rejected by an engineered
barrier, primarily through a size exclusion mechanism, and which has a
measurable removal efficiency of a target organism that can be verified through
the application of a direct integrity test. This definition includes the common
membrane technologies of microfiltration, ultrafiltration, nanofiltration, and
reverse osmosis.
“MFL” means millions of fibers per liter larger than 10 micrometers.
BOARD NOTE: Derived from 40 CFR 141.23(a)(4)(i) (2006) (2007).
“mg” means milligrams (1/1000 of a gram).
“mg/ℓ” means milligrams per liter.
“Mixed system” means a PWS that uses both groundwater and surface water
sources.
BOARD NOTE: Drawn from 40 CFR 141.23(b)(2) and 141.24(f)(2) note (2006)
(2007).
“MUG” means 4-methyl-umbelliferyl-beta-d-glucuronide.
“Near the first service connection” means at one of the 20 percent of all service
connections in the entire system that are nearest the public water system (PWS)
treatment facility, as measured by water transport time within the distribution system.
“nm” means nanometer (1/1,000,000,000 of a meter).
“Non-community water system” or “NCWS” or “non-CWS” means a public water
system (PWS) that is not a community water system (CWS). A non-community
water system is either a “transient non-community water system (TWS)” or a
“non-transient non-community water system (NTNCWS).”
“Non-transient non-community water system” or “NTNCWS” means a public water
system (PWS) that is not a community water system (CWS) and that regularly serves
at least 25 of the same persons over six months per year.
“NPDWR” means “national primary drinking water regulation.”
“NTU” means “nephelometric turbidity units.”
“Old MCL” means one of the inorganic maximum contaminant levels (MCLs),
codified at Section 611.300, or organic MCLs, codified at Section 611.310,
including any marked as “additional State requirements.”
BOARD NOTE: Old MCLs are those derived prior to the implementation of the
USEPA “Phase II” regulations. The Section 611.640 definition of this term, which

20
applies only to Subpart O of this Part, differs from this definition in that the
definition does not include the Section 611.300 inorganic MCLs.
“P-A Coliform Test” means “Presence-Absence Coliform Test.”
“Paired sample” means two samples of water for Total Organic Carbon (TOC).
One sample is of raw water taken prior to any treatment. The other sample is taken
after the point of combined filter effluent and is representative of the treated water.
These samples are taken at the same time. (See Section 611.382.)
“Performance evaluation sample” or “PE sample” means a reference sample
provided to a laboratory for the purpose of demonstrating that the laboratory can
successfully analyze the sample within limits of performance specified by the
Agency; or, for bacteriological laboratories, Public Health; or, for radiological
laboratories, the Illinois Department of Nuclear Safety. The true value of the
concentration of the reference material is unknown to the laboratory at the time of
the analysis.
“Person” means an individual, corporation, company, association, partnership, state,
unit of local government, or federal agency.
“Phase I” refers to that group of chemical contaminants and the accompanying
regulations promulgated by USEPA on July 8, 1987, at 52 Fed. Reg. 25712.
“Phase II” refers to that group of chemical contaminants and the accompanying
regulations promulgated by USEPA on January 30, 1991, at 56 Fed. Reg. 3578.
“Phase IIB” refers to that group of chemical contaminants and the accompanying
regulations promulgated by USEPA on July 1, 1991, at 56 Fed. Reg. 30266.
“Phase V” refers to that group of chemical contaminants promulgated by USEPA on
July 17, 1992, at 57 Fed. Reg. 31776.
“Picocurie” or “pCi” means the quantity of radioactive material producing 2.22
nuclear transformations per minute.
“Plant intake” means the works or structures at the head of a conduit through
which water is diverted from a source (e.g., a river or lake) into the treatment
plant.
“Point of disinfectant application” is the point at which the disinfectant is applied and
downstream of which water is not subject to recontamination by surface water
runoff.
“Point-of-entry treatment device” or “POE” is a treatment device applied to the
drinking water entering a house or building for the purpose of reducing contaminants

21
in the drinking water distributed throughout the house or building.
“Point-of-use treatment device” or “POU” is a treatment device applied to a single
tap used for the purpose of reducing contaminants in drinking water at that one tap.
“Presedimentation” means a preliminary treatment process used to remove gravel,
sand, and other particulate material from the source water through settling before
the water enters the primary clarification and filtration processes in a treatment
plant.
“Public Health” or “DPH” means the Illinois Department of Public Health.
BOARD NOTE: The Department of Public Health (“Public Health”) regulates non-
community water supplies (“non-CWSs,” including non-transient, non-community
water supplies (“NTNCWSs”) and transient non-community water supplies
(“transient non-CWSs”)). For the purposes of regulation of supplies by Public
Health by reference to this Part, “Agency” must mean Public Health.
“Public water system” or “PWS” means a system for the provision to the public of
water for human consumption through pipes or other constructed conveyances, if
such system has at least 15 service connections or regularly serves an average of at
least 25 individuals daily at least 60 days out of the year. A PWS is either a
community water system (CWS) or a non-community water system (non-CWS). A
PWS does not include any facility defined as “special irrigation district.” Such
term includes the following:
Any collection, treatment, storage, and distribution facilities under control of
the operator of such system and used primarily in connection with such
system; and
Any collection or pretreatment storage facilities not under such control that
are used primarily in connection with such system.
BOARD NOTE: Where used in Subpart F of this Part, “public water supply” means
the same as “public water system.”
“Radioactive contaminants” refers to that group of contaminants designated
“radioactive contaminants” in USEPA regulatory discussions and guidance
documents. “Radioactive contaminants” include tritium, strontium-89, strontium-
90, iodine-131, cesium-134, gross beta emitters, and other nuclides.
BOARD NOTE: Derived from 40 CFR 141.25(c) Table B (2006)
(2007). These
radioactive contaminants must be reported in Consumer Confidence Reports
under Subpart U of this Part when they are detected above the levels indicated in
Section 611.720(c)(3).
“Reliably and consistently” below a specified level for a contaminant means an
Agency determination based on analytical results following the initial detection of a
contaminant to determine the qualitative condition of water from an individual

22
sampling point or source. The Agency must base this determination on the
consistency of analytical results, the degree below the MCL, the susceptibility of
source water to variation, and other vulnerability factors pertinent to the contaminant
detected that may influence the quality of water.
BOARD NOTE: Derived from 40 CFR 141.23(b)(9), 141.24(f)(11)(ii), and
141.24(f)(11)(iii) (2006) (2007).
“Rem” means the unit of dose equivalent from ionizing radiation to the total body or
any internal organ or organ system. A “millirem (mrem)” is 1/1000 of a rem.
“Repeat compliance period” means a compliance period that begins after the initial
compliance period.
“Representative” means that a sample must reflect the quality of water that is
delivered to consumers under conditions when all sources required to supply water
under normal conditions are in use and all treatment is properly operating.
“Residual disinfectant concentration” (“RDC” or “C” in CT calculations) means the
concentration of disinfectant measured in mg/ℓ in a representative sample of water.
For purposes of the requirement of Section 611.241(d) of maintaining a detectable
RDC in the distribution system, “RDC” means a residual of free or combined
chlorine.
“Safe Drinking Water Act” or “SDWA” means the Public Health Service Act, as
amended by the Safe Drinking Water Act, Pub. L. 93-523, 42 USC 300f et seq.
“Sanitary survey” means an onsite review of the delineated WHPAs (identifying
sources of contamination within the WHPAs and evaluations or the
hydrogeologic sensitivity of the delineated WHPAs conducted under source water
assessments or utilizing other relevant information where available), facilities,
equipment, operation, maintenance, and monitoring compliance of a public water
system (PWS) to evaluate the adequacy of the system, its sources, and operations
for the production and distribution of safe drinking water.
BOARD NOTE: Derived from 40 CFR 141.2 (2006)
and 40 CFR 142.16(o)(2),
as added at 71 Fed. Reg. 65574 (Nov. 8, 2006) (2007).
“Sedimentation” means a process for removal of solids before filtration by gravity or
separation.
“SEP” means special exception permit (Section 611.110).
“Service connection,” as used in the definition of public water system, does not
include a connection to a system that delivers water by a constructed conveyance
other than a pipe if any of the following is true:
The water is used exclusively for purposes other than residential use

23
(consisting of drinking, bathing, and cooking, or other similar uses);
The Agency determines by issuing a SEP that alternative water for
residential use or similar uses for drinking and cooking is provided to
achieve the equivalent level of public health protection provided by the
applicable national primary drinking water regulations; or
The Agency determines by issuing a SEP that the water provided for
residential use or similar uses for drinking, cooking, and bathing is
centrally treated or treated at the point of entry by the provider, a
pass-through entity, or the user to achieve the equivalent level of
protection provided by the applicable national primary drinking water
regulations.
BOARD NOTE: See sections 1401(4)(B)(i)(II) and (4)(B)(i)(III) of SDWA (42
USC 300f(4)(B)(i)(II) and (4)(B)(i)(III) (2000)).
“Significant deficiency” means a deficiency identified by the Agency in a
groundwater system pursuant to Section 611.803. A significant deficiency might
include, but is not limited to, a defect in system design, operation, or maintenance
or a failure or malfunction of the sources, treatment, storage, or distribution
system that the Agency determines to be causing or have potential for causing the
introduction of contamination into the water delivered to consumers.
BOARD NOTE: Derived from 40 CFR 142.16(o)(2)(iv), as added at 71 Fed.
Reg. 65574 (Nov. 8, 2006) (2007). The Agency must submit to USEPA a
definition and description of at least one significant deficiency in each of the eight
sanitary survey elements listed in Section 611.801(c) as part of the federal
primacy requirements. The Board added the general description of what a
significant deficiency might include in non-limiting terms, in order to provide this
important definition within the body of the Illinois rules. No Agency submission
to USEPA can provide definition within the context of Board regulations.
“Slow sand filtration” means a process involving passage of raw water through a bed
of sand at low velocity (generally less than 0.4 meters per hour (m/h)) resulting in
substantial particulate removal by physical and biological mechanisms.
“SOC” or “Synthetic organic chemical contaminant” refers to that group of
contaminants designated as “SOCs,” or “synthetic organic chemicals” or “synthetic
organic contaminants,” in USEPA regulatory discussions and guidance documents.
“SOCs” include alachlor, aldicarb, aldicarb sulfone, aldicarb sulfoxide, atrazine,
benzo(a)pyrene, carbofuran, chlordane, dalapon, dibromoethylene (ethylene
dibromide or EDB), dibromochloropropane (DBCP), di(2-ethylhexyl)adipate, di(2-
ethylhexyl)phthalate, dinoseb, diquat, endothall, endrin, glyphosate, heptachlor,
heptachlor epoxide, hexachlorobenzene, hexachlorocyclopentadiene, lindane,
methoxychlor, oxamyl, pentachlorophenol, picloram, simazine, toxaphene, poly-
chlorinated biphenyls (PCBs), 2,4-D, 2,3,7,8-TCDD, and 2,4,5-TP.
BOARD NOTE: See the Board note appended to Section 611.311 for

24
information relating to implementation of requirements relating to aldicarb,
aldicarb sulfone, and aldicarb sulfoxide.
“Source” means a well, reservoir, or other source of raw water.
“Special irrigation district” means an irrigation district in existence prior to May
18, 1994 that provides primarily agricultural service through a piped water system
with only incidental residential use or similar use, where the system or the
residential users or similar users of the system comply with either of the following
exclusion conditions:
The Agency determines by issuing a SEP that alternative water is
provided for residential use or similar uses for drinking or cooking to
achieve the equivalent level of public health protection provided by the
applicable national primary drinking water regulations; or
The Agency determines by issuing a SEP that the water provided for
residential use or similar uses for drinking, cooking, and bathing is
centrally treated or treated at the point of entry by the provider, a pass-
through entity, or the user to achieve the equivalent level of protection
provided by the applicable national primary drinking water regulations.
BOARD NOTE: Derived from 40 CFR 141.2 (2006) (2007) and sections
1401(4)(B)(i)(II) and (4)(B)(i)(III) of SDWA (42 USC 300f(4)(B)(i)(II) and
(4)(B)(i)(III) (2000) (2007)).
“Standard monitoring” means the monitoring, performed by the supplier pursuant
to Section 611.921(a) and (b), at various specified locations in a distribution
system including near entry points, at points that represent the average residence
time in the distribution system, and at points in the distribution system that are
representative of high TTHM and HAA5 concentrations throughout the
distribution system.
BOARD NOTE: Derived from 40 CFR 141.601(a) and (b) (2006)
(2007).
“Standard sample” means the aliquot of finished drinking water that is examined for
the presence of coliform bacteria.
“Subpart B system” means a public water system that uses surface water or
groundwater under the direct influence of surface water as a source and which is
subject to the requirements of Subpart B of this Part and the analytical and
monitoring requirements of Sections 611.531, 611.532, 611.533, Appendix B of
this Part, and Appendix C of this Part.
“Subpart I compliance monitoring” means monitoring required to demonstrate
compliance with disinfectant residuals, disinfection byproducts, and disinfection
byproduct precursors requirements of Subpart I of this Part.

25
“Subpart I system” means a public water system that uses surface water or
groundwater as a source and which is subject to the disinfectant residuals,
disinfection byproducts, and disinfection byproduct precursors requirements of
Subpart I of this Part.
“Subpart Y compliance monitoring” means monitoring required to demonstrate
compliance with Stage 2 disinfection byproducts requirements of Subpart Y of
this Part.
“Supplier of water” or “supplier” means any person who owns or operates a public
water system (PWS). This term includes the “official custodian.”
“Surface water” means all water that is open to the atmosphere and subject to surface
runoff.
“SUVA” means specific ultraviolet absorption at 254 nanometers (nm), which is an
indicator of the humic content of water. It is a calculated parameter obtained by
dividing a sample’s ultraviolet absorption at a wavelength of 254 nm (UV
254
) (in
m
-1
) by its concentration of dissolved organic carbon (in mg/ℓ).
“SWS” means “surface water system,” a public water supply (PWS) that uses only
surface water sources, including “groundwater under the direct influence of surface
water.”
BOARD NOTE: Derived from 40 CFR 141.23(b)(2) and 141.24(f)(2) note (2006)
(2007).
“System-specific study plan” means the plan, submitted by the supplier to the
Agency pursuant to Section 611.922, for studying the occurrence of TTHM and
HAA5 in a supplier’s distribution system based on either monitoring results or
modelling of the system.
BOARD NOTE: Derived from 40 CFR 141.602 (2006)
(2007).
“System with a single service connection” means a system that supplies drinking
water to consumers via a single service line.
“Too numerous to count” means that the total number of bacterial colonies exceeds
200 on a 47-mm diameter membrane filter used for coliform detection.
“Total organic carbon” or “TOC” means total organic carbon (in mg/ℓ) measured
using heat, oxygen, ultraviolet irradiation, chemical oxidants, or combinations of
these oxidants that convert organic carbon to carbon dioxide, rounded to two
significant figures.
“Total trihalomethanes” or “TTHM” means the sum of the concentration of
trihalomethanes (THMs), in milligrams per liter (mg/ℓ), rounded to two significant
figures.

26
BOARD NOTE: See the definition of “trihalomethanes” for a listing of the four
compounds that USEPA considers TTHMs to comprise.
“Transient, non-community water system” or “transient non-CWS” means a non-
CWS that does not regularly serve at least 25 of the same persons over six months of
the year.
BOARD NOTE: The federal regulations apply to all “public water systems,” which
are defined as all systems that have at least 15 service connections or which
regularly serve water to at least 25 persons. (See 42 USC 300f(4).) The Act
mandates that the Board and the Agency regulate “public water supplies,” which it
defines as having at least 15 service connections or regularly serving 25 persons
daily at least 60 days per year. (See Section 3.28 of the Act [415 ILCS 5/3.28].) The
Department of Public Health regulates transient, non-community water systems.
“Treatment” means any process that changes the physical, chemical,
microbiological, or radiological properties of water, is under the control of the
supplier, and is not a point-of-use treatment device or a point-of-entry treatment
device as defined in this Section. Treatment includes, but is not limited to, aeration,
coagulation, sedimentation, filtration, activated carbon treatment, disinfection, and
fluoridation.
“Trihalomethane” or “THM” means one of the family of organic compounds, named
as derivatives of methane, in which three of the four hydrogen atoms in methane are
each substituted by a halogen atom in the molecular structure. The THMs are the
following compounds:
Trichloromethane (chloroform),
Dibromochloromethane,
Bromodichloromethane, and
Tribromomethane (bromoform)
“Two-stage lime softening” means a process in which chemical addition and
hardness precipitation occur in each of two distinct unit clarification processes in
series prior to filtration.
“μg” means micrograms (1/1,000,000 of a gram).
“USEPA” means the U.S. Environmental Protection Agency.
“Uncovered finished water storage facility” is a tank, reservoir, or other facility
that is used to store water which will undergo no further treatment to reduce
microbial pathogens except residual disinfection and which is directly open to the
atmosphere.

27
“Very small system waiver” means the conditional waiver from the requirements
of Subpart W of this Part applicable to a supplier that serves fewer than 500
persons and which has taken TTHM and HAA5 samples pursuant to Subpart I of
this Part.
BOARD NOTE: Derived from 40 CFR 141.604 (2006) (2007).
“Virus” means a virus of fecal origin that is infectious to humans by waterborne
transmission.
“VOC” or “volatile organic chemical contaminant” refers to that group of
contaminants designated as “VOCs,” “volatile organic chemicals,” or “volatile
organic contaminants,” in USEPA regulatory discussions and guidance documents.
“VOCs” include benzene, dichloromethane, tetrachloromethane (carbon tetra-
chloride), trichloroethylene, vinyl chloride, 1,1,1-trichloroethane (methyl
chloroform), 1,1-dichloroethylene, 1,2-dichloroethane, cis-1,2-dichloroethylene,
ethylbenzene, monochlorobenzene, o-dichlorobenzene, styrene, 1,2,4-trichloro-
benzene, 1,1,2-trichloroethane, tetrachloroethylene, toluene, trans-1,2-dichloro-
ethylene, xylene, and 1,2-dichloropropane.
“Waterborne disease outbreak” means the significant occurrence of acute infectious
illness, epidemiologically associated with the ingestion of water from a public water
system (PWS) that is deficient in treatment, as determined by the appropriate local or
State agency.
“Wellhead protection area” or “WHPA” means the surface and subsurface
recharge area surrounding a community water supply well or well field,
delineated outside of any applicable setback zones (pursuant to Section
17.2 17.1 of the Act ([415 ILCS 5/17.2 5/17.1)]) pursuant to Illinois’
Wellhead Protection Program, through which contaminants are reasonably
likely to move toward such well or well field.
BOARD NOTE: The Agency uses two guidance documents for
identification of WHPAs:
“Guidance Document for Groundwater Protection Needs Assessments,”
Illinois Environmental Protection Agency, Illinois State Water Survey,
and Illinois State Geologic Survey joint report, January 1995; and
“The Illinois Wellhead Protection Program Pursuant to Section 1428 of
the Federal Safe Drinking Water Act,” Illinois Environmental Protection
Agency, No. 22480, October 1992.
“Wellhead protection program” means the wellhead protection program for the State
of Illinois, approved by USEPA under Section 1428 of the SDWA, 42 USC 300h-7.
BOARD NOTE: Derived from 40 CFR 141.71(b) (2006) (2007). The wellhead
protection program includes the “groundwater protection needs assessment” under

28
Section 17.1 of the Act [415 ILCS 5/17.1] and 35 Ill. Adm. Code 615-617.
“Wholesale system” means a public water system that treats source water as
necessary to produce finished water, which then delivers some or all of that
finished water to another public water system. Delivery by a wholesale system
may be through a direct connection or through the distribution system of one or
more consecutive systems.
BOARD NOTE: Derived from 40 CFR 141.2 (2006) (2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.102
Incorporations by Reference
a)
Abbreviations and short-name listing of references. The following names and
abbreviated names, presented in alphabetical order, are used in this Part to refer to
materials incorporated by reference:
“ASTM Method” means a method published by and available from the
American Society for Testing and Materials (ASTM).
“Colisure Test” means “Colisure Presence/Absence Test for Detection and
Identification of Coliform Bacteria and Escherichia Coli in Drinking
Water,” available from Millipore Corporation, Technical Services
Department.
“Colitag® Test” means “Colitag® Product as a Test for Detection and
Identification of Coliforms and E. coli Bacteria in Drinking Water and
Source Water as Required in National Primary Drinking Water
Regulations,” available from CPI International.
“Determination of Inorganic Oxyhalide” means “Determination of
Inorganic Oxyhalide Disinfection By-Products in Drinking Water Using
Ion Chromatography with the Addition of a Postcolumn Reagent for Trace
Bromate Analysis,” available from NTIS.
“Dioxin and Furan Method 1613” means “Tetra- through Octa-
Chlorinated Dioxins and Furans by Isotope-Dilution HRGC/HRMS,”
available from NTIS.
“E*Colite Test” means “Charm E*Colite Presence/Absence Test for
Detection and Identification of Coliform Bacteria and Escherichia coli in
Drinking Water,” available from Charm Sciences, Inc. and USEPA, Water
Resource Center.
“EC-MUG” means “Method 9221 F: Multiple-Tube Fermentation

29
Technique for Members of the Coliform Group, Escherichia coli
Procedure (Proposed),” available from American Public Health
Association and American Waterworks Association.
“Enterolert” means “Evaluation of Enterolert for Enumeration of
Enterococci in Recreational Waters,” available from American Society for
Microbiology.
“Georgia Radium Method” means “The Determination of Radium-226 and
Radium-228 in Drinking Water by Gamma-ray Spectrometry Using HPGE
or Ge(Li) Detectors,” Revision 1.2, December 2004, available from the
Georgia Tech Research Institute.
“GLI Method 2” means GLI Method 2, “Turbidity,” Nov. 2, 1992,
available from Great Lakes Instruments, Inc.
“Hach FilterTrak Method 10133” means “Determination of Turbidity by
Laser Nephelometry,” available from Hach Co.
“HASL Procedure Manual” means HASL Procedure Manual, HASL 300,
available from ERDA Health and Safety Laboratory.
“ITS Method D99-003” means Method D99-003, Revision 3.0, “Free
Chlorine Species (HOCl
-
and OCl
-
) by Test Strip,” available from
Industrial Test Systems, Inc.
“Kelada 01” means “Kelada Automated Test Methods for Total Cyanide,
Acid Dissociable Cyanide, And Thiocyanate,” Revision 1.2, August 2001,
EPA 821/B–01/009, available from the National Technical Information
Service (NTIS).
“m-ColiBlue24 Test” means “Total Coliforms and E. coli Membrane
Filtration Method with m-ColiBlue24® Broth,” available from Hach
Company and USEPA, Water Resource Center.
“Membrane Filter Technique using Chromocult Doliform Agar” means
“Chromocult Coliform Agar Presence/Absence Membrane Filter Test
Method for Detection and Identification of Coliform Bacteria and
Escherichia coli in Finished Waters,” available from EMD Chemicals Inc
.
“NA-MUG” means “Method 9222 G: Membrane Filter Technique for
Members of the Coliform Group, MF Partition Procedures,” available
from American Public Health Association and American Waterworks
Association.
“NCRP” means “National Council on Radiation Protection.”

30
“NTIS” means “National Technical Information Service.”
“New Jersey Radium Method” means “Determination of Radium 228 in
Drinking Water,” available from the New Jersey Department of
Environmental Protection.
“New York Radium Method” means “Determination of Ra-226 and Ra-
228 (Ra-02),” available from the New York Department of Public Health.
“OI Analytical Method OIA-1677” means “Method OIA-1677, DW
Available Cyanide by Flow Injection, Ligand Exchange, and
Amperometry,” available from ALPKEM, Division of OI Analytical.
“ONPG-MUG Test” (meaning “minimal medium ortho-nitrophenyl-beta-
d-galactopyranoside-4-methyl-umbelliferyl-beta-d-glucuronide test”), also
called the “Autoanalysis Colilert System,” is Method 9223, available in
“Standard Methods for the Examination of Water and Wastewater,” 18th,
19th, 20th, or 21st ed., from American Public Health Association and the
American Water Works Association.
“Palintest Method 1001” means “Method Number 1001,” available from
Palintest, Ltd. or the Hach Company.
“QuikChem Method 10–204–00–1-X” means “Digestion and distillation
of total cyanide in drinking and wastewaters using MICRO DIST and
determination of cyanide by flow injection analysis,” available from
Lachat Instruments.
“Readycult Coliforms 100 Presence/Absence Test” means “Readycult
Coliforms 100 Presence/Absence Test for Detection and Identification of
Coliform Bacteria and Escherichia coli in Finished Waters,” available
from EMD Chemicals Inc.
“SimPlate Method” means “IDEXX SimPlate TM HPC Test Method for
Heterotrophs in Water,” available from IDEXX Laboratories, Inc.
“Radiochemical Methods” means “Interim Radiochemical Methodology
for Drinking Water,” available from NTIS.
“Standard Methods” means “Standard Methods for the Examination of
Water and Wastewater,” available from the American Public Health
Association or the American Waterworks Association.
“Standard Methods Online” means the website maintained by the Standard
Methods Organization (at www.standardmethods.org) for purchase of the

31
latest versions of methods in an electronic format.
“Syngenta AG-625” means “Atrazine in Drinking Water by
Immunoassay,” February 2001 is available from Syngenta Crop
Protection, Inc.
“Technical Bulletin 601” means “Technical Bulletin 601, Standard
Method of Testing for Nitrate in Drinking Water,” July 1994, available
from Analytical Technology, Inc.
“Technical Notes on Drinking Water Methods” means the USEPA
document by that title, October 1994, USEPA document number EPA
600/R-94/173, available from NTIS.
“Technicon Methods” means “Fluoride in Water and Wastewater,”
available from Bran & Luebbe.
“USDOE Manual” means “EML Procedures Manual,” available from the
United State Department of Energy.
“USEPA Asbestos Methods-100.1” means Method 100.1, “Analytical
Method for Determination of Asbestos Fibers in Water,” September 1983,
available from NTIS.
“USEPA Asbestos Methods-100.2” means Method 100.2, “Determination
of Asbestos Structures over 10-mm in Length in Drinking Water,” June
1994, available from NTIS.
“USEPA Environmental Inorganics Methods” means “Methods for the
Determination of Inorganic Substances in Environmental Samples,”
August 1993, available from NTIS.
“USEPA Environmental Metals Methods” means “Methods for the
Determination of Metals in Environmental Samples,” available from
NTIS.
“USEPA Inorganic Methods” means “Methods for Chemical Analysis of
Water and Wastes,” March 1983, available from NTIS.
“USEPA Interim Radiochemical Methods” means “Interim Radiochemical
Methodology for Drinking Water,” EPA 600/4-75/008 (revised), March
1976. Available from NTIS.
“USEPA Method 1600” means “Method 1600: Enterococci in Water by
Membrane Filtration Using Membrane-Enterococcus Indoxyl–b–D–
Glucoside Agar (mEI),” available from USEPA, Water Resource Center.

32
“USEPA Method 1601” means “Method 1601: Male-specific (F
+
) and
Somatic Coliphage in Water by Two-step Enrichment Procedure,”
available from USEPA, Water Resource Center.
“USEPA Method 1602” means “Method 1602: Male-specific (F
+
) and
Somatic Coliphage in Water by Single Agar Layer (SAL) Procedure,”
available from USEPA, Water Resource Center.
“USEPA Method 1604” means “Method 1604: Total Coliforms and
Escherichia coli in Water by Membrane Filtration Using a Simultaneous
Detection Technique (MI Medium),” available from USEPA, Water
Resource Center.
“USEPA Method 1622 (05)” means “Method 1622: Cryptosporidium in
Water by Filtration/IMS/FA,” December 2005, available from USEPA,
Office of Ground Water and Drinking Water.
“USEPA Method 1622 (01)” means “Method 1622: Cryptosporidium in
Water by Filtration/IMS/FA,” April 2001, available from USEPA, Office
of Ground Water and Drinking Water.
“USEPA Method 1622 (99)” means “Method 1622: Cryptosporidium in
Water by Filtration/IMS/FA,” January 1999, available from USEPA,
Office of Ground Water and Drinking Water.
“USEPA Method 1623 (05)” means “Method 1623: Cryptosporidium and
Giardia in Water by Filtration/IMS/FA,” December 2005, available from
the USEPA, Office of Ground Water and Drinking Water.
“USEPA Method 1623 (01)” means “Method 1623: Cryptosporidium and
Giardia in Water by Filtration/IMS/FA,” April 2001, available from the
USEPA, Office of Ground Water and Drinking Water.
“USEPA Method 1623 (99)” means “Method 1623: Cryptosporidium and
Giardia in Water by Filtration/IMS/FA,” April 1999, available from the
USEPA, Office of Ground Water and Drinking Water.
“USEPA NERL Method 200.5 (rev. 4.2)” means Method 200.5, Revision
4.2, “Determination of Trace Elements in Drinking Water by Axially
Viewed Inductively Coupled Plasma—Atomic Emission Spectrometry,”
October 2003, EPA 600/R-06/115. Available from the USEPA, Office of
Research and Development.
“USEPA NERL Method 415.3 (rev. 1.1)” means Method 415.3, Revision
1.1, “Determination of Total Organic Carbon and Specific UV

33
Absorbance at 254 nm in Source Water and Drinking Water,” USEPA,
February 2005, EPA 600/R-05/055. Available from the USEPA, Office of
Research and Development.
“USEPA OGWDW Methods” means one of the methods listed as
available from the USEPA, Office of Ground Water and Drinking Water
(Methods 317.0 (rev. 2.0), 326.0 (rev. 1.0), 327.0 (rev. 1.1), 515.4 (rev.
1.0), 531.2 (rev. 1.0), and 552.3 (rev. 1.0), 1622 (99), 1622 (01), 1622
(05), 1623 (99), 1623 (01), and 1623 (05)).
“USEPA Organic Methods” means “Methods for the Determination of
Organic Compounds in Drinking Water,” July 1991, for Methods 502.2,
505, 507, 508, 508A, 515.1, and 531.1; “Methods for the Determination of
Organic Compounds in Drinking Water—Supplement I,” July 1990, for
Methods 506, 547, 550, 550.1, and 551; “Methods for the Determination
of Organic Compounds in Drinking Water—Supplement II,” August 1992,
for Methods 504.1, 508.1, 515.2, 524.2, 525.2, 548.1, 549.1, 552.1, 552.2,
and 555; and “Methods for the Determination of Organic Compounds in
Drinking Water—Supplement III,” August 1995, for Methods 502.2, 524.2,
551.1, and 552.2. Method 515.4, “Determination of Chlorinated Acids in
Drinking Water by Liquid-Liquid Microextraction, Derivatization and
Fast Gas Chromatography with Electron Capture Detection,” Revision 1.0,
April 2000, EPA 815/B–00/001, and Method 531.2, “Measurement of N-
methylcarbamoyloximes and N-methylcarbamates in Water by Direct
Aqueous Injection HPLC with Postcolumn Derivatization,” Revision 1.0,
September 2001, EPA 815/B-01/002, are both available on-line from
USEPA, Office of Ground Water and Drinking Water.
“USEPA Organic and Inorganic Methods” means “Methods for the
Determination of Organic and Inorganic Compounds in Drinking Water,
Volume 1,” EPA 815/R-00/014, PB2000-106981, August 2000. Available
from NTIS.
“USEPA Radioactivity Methods” means “Prescribed Procedures for
Measurement of Radioactivity in Drinking Water,” EPA 600/4-80/032,
August 1980. Available from NTIS.
“USEPA Radiochemical Analyses” means “Radiochemical Analytical
Procedures for Analysis of Environmental Samples,” March 1979.
Available from NTIS.
“USEPA Radiochemistry Methods” means “Radiochemistry Procedures
Manual,” EPA 520/5-84/006, December 1987. Available from NTIS.
“USEPA Technical Notes” means “Technical Notes on Drinking Water
Methods,” available from NTIS.

34
“USGS Methods” means “Methods of Analysis by the U.S. Geological
Survey National Water Quality Laboratory—Determination of Inorganic
and Organic Constituents in Water and Fluvial Sediments,” available from
NTIS and USGS.
“Waters Method B-1011” means “Waters Test Method for the
Determination of Nitrite/Nitrate in Water Using Single Column Ion
Chromatography,” available from Waters Corporation, Technical Services
Division.
b)
The Board incorporates the following publications by reference:
ALPKEM, Division of OI Analytical, P.O. Box 9010, College Station, TX
77842-9010, telephone: 979-690-1711, Internet: www.oico.com.
“Method OIA-1677 DW, Available Cyanide by Flow Injection,
Ligand Exchange, and Amperometry,” EPA 821/R-04/001,
January 2004 (referred to as “OI Analytical Method OIA-1677”),
referenced in Section 611.611.
BOARD NOTE: Also available online for download from
www.epa.gov/waterscience/methods/method/cyanide/1677-
2004.pdf.
APHA. American Public Health Association, 1015 Fifteenth Street NW,
Washington, DC 20005 202-777-2742.
“Standard Methods for the Examination of Water and
Wastewater,” 17th Edition, 1989 (referred to as “Standard
Methods, 17th ed.”). See the methods listed separately for the
same references under American Waterworks Association.
“Standard Methods for the Examination of Water and
Wastewater,” 18th Edition, 1992, including “Supplement to the
18th Edition of Standard Methods for the Examination of Water
and Wastewater,” 1994 (collectively referred to as “Standard
Methods, 18th ed.”). See the methods listed separately for the
same references under American Waterworks Association.
“Standard Methods for the Examination of Water and
Wastewater,” 19th Edition, 1995 (referred to as “Standard
Methods, 19th ed.”). See the methods listed separately for the
same references under American Waterworks Association.
“Standard Methods for the Examination of Water and
Wastewater,” 20th Edition, 1998 (referred to as “Standard

35
Methods, 20th ed.”). See the methods listed separately for the
same references under American Waterworks Association.
“Standard Methods for the Examination of Water and
Wastewater,” 21st Edition, 2005 (referred to as “Standard
Methods, 21st ed.”). See the methods listed separately for the
same references under American Waterworks Association.
American Society for Microbiology, 1752 N Street N.W., Washington,
DC 20036, 202-737-3600:
“Evaluation of Enterolert for Enumeration of Enterococci in
Recreational Waters,” Applied and Environmental Microbiology,
Oct. 1996, vol. 62, no. 10, p. 3881 (referred to as “Enterolert”),
referenced in Section 611.802.
BOARD NOTE: At the table to 40 CFR 141.402(c)(2), USEPA
approved the method as described in the above literature review.
The method itself is embodied in the printed instructions to the
proprietary kit available from IDEXX Laboratories, Inc.
(accessible on-line and available by download from www.asm.org,
as “Enterolert™ Procedure”). ASTM approved the method as
“Standard Test Method for Enterococci in Water Using
Enterolert™,” which is available in two versions from ASTM:
ASTM D 6503-99 (superceded) and ASTM D 6503-99 (2005).
While it is more conventional to incorporate the method as
presented in the kit instructions or as approved by ASTM by
reference, the Board is constrained to incorporate the version that
appears in the technical literature by reference, which is the
version that USEPA has explicitly approved.
AWWA. American Water Works Association et al., 6666 West Quincy
Ave., Denver, CO 80235 (303-794-7711).
“National Field Evaluation of a Defined Substrate Method for the
Simultaneous Enumeration of Total Coliforms and Escherichia coli
for Drinking Water: Comparison with the Standard Multiple Tube
Fermentation Method,” S.C. Edberg, M.J. Allen & D.B. Smith,
Applied Environmental Microbiology, vol. 54, iss. 6, pp 1595-
1601 (1988), referenced in Appendix D to this Part.
“Standard Methods for the Examination of Water and
Wastewater,” 13th Edition, 1971 (referred to as “Standard
Methods, 13th ed.”).
Method 302, Gross Alpha and Gross Beta Radioactivity in

36
Water (Total, Suspended, and Dissolved), referenced in
Section 611.720.
Method 303, Total Radioactive Strontium and Strontium 90
in Water, referenced in Section 611.720.
Method 304, Radium in Water by Precipitation, referenced
in Section 611.720.
Method 305, Radium 226 by Radon in Water (Soluble,
Suspended, and Total), referenced in Section 611.720.
Method 306, Tritium in Water, referenced in Section
611.720.
“Standard Methods for the Examination of Water and
Wastewater,” 17th Edition, 1989 (referred to as “Standard
Methods, 17th ed.”).
Method 7110 B, Gross Alpha and Gross Beta Radioactivity
in Water (Total, Suspended, and Dissolved), referenced in
Section 611.720.
Method 7500-Cs B, Radioactive Cesium, Precipitation
Method, referenced in Section 611.720.
Method 7500-
3
H B, Tritium in Water, referenced in Section
611.720.
Method 7500-I B, Radioactive Iodine, Precipitation
Method, referenced in Section 611.720.
Method 7500-I C, Radioactive Iodine, Ion-Exchange
Method, referenced in Section 611.720.
Method 7500-I D, Radioactive Iodine, Distillation Method,
referenced in Section 611.720.
Method 7500-Ra B, Radium in Water by Precipitation,
referenced in Section 611.720.
Method 7500-Ra C, Radium 226 by Radon in Water
(Soluble, Suspended, and Total), referenced in Section
611.720.
Method 7500-Ra D, Radium, Sequential Precipitation

37
Method (Proposed), referenced in Section 611.720.
Method 7500-Sr B, Total Radioactive Strontium and
Strontium 90 in Water, referenced in Section 611.720.
Method 7500-U B, Uranium, Radiochemical Method
(Proposed), referenced in Section 611.720.
Method 7500-U C, Uranium, Isotopic Method (Proposed),
referenced in Section 611.720.
“Standard Methods for the Examination of Water and
Wastewater,” 18th Edition, 1992 (referred to as “Standard
Methods, 18th ed.”).
Method 2130 B, Turbidity, Nephelometric Method,
referenced in Section 611.531.
Method 2320 B, Alkalinity, Titration Method, referenced in
Section 611.611.
Method 2510 B, Conductivity, Laboratory Method,
referenced in Section 611.611.
Method 2550, Temperature, Laboratory and Field Methods,
referenced in Section 611.611.
Method 3111 B, Metals by Flame Atomic Absorption
Spectrometry, Direct Air-Acetylene Flame Method,
referenced in Sections 611.611 and 611.612.
Method 3111 D, Metals by Flame Atomic Absorption
Spectrometry, Direct Nitrous Oxide-Acetylene Flame
Method, referenced in Section 611.611.
Method 3112 B, Metals by Cold-Vapor Atomic Absorption
Spectrometry, Cold-Vapor Atomic Absorption
Spectrometric Method, referenced in Section 611.611.
Method 3113 B, Metals by Electrothermal Atomic
Absorption Spectrometry, Electrothermal Atomic
Absorption Spectrometric Method, referenced in Sections
611.611 and 611.612.
Method 3114 B, Metals by Hydride Generation/Atomic
Absorption Spectrometry, Manual Hydride

38
Generation/Atomic Absorption Spectrometric Method,
referenced in Section 611.611.
Method 3120 B, Metals by Plasma Emission Spectroscopy,
Inductively Coupled Plasma (ICP) Method, referenced in
Sections 611.611 and 611.612.
Method 3500-Ca D, Calcium, EDTA Titrimetric Method,
referenced in Section 611.611.
Method 3500-Mg E, Magnesium, Calculation Method,
referenced in Section 611.611.
Method 4110 B, Determination of Anions by Ion
Chromatography, Ion Chromatography with Chemical
Suppression of Eluent Conductivity, referenced in Section
611.611.
Method 4500-CN
-
C, Cyanide, Total Cyanide after
Distillation, referenced in Section 611.611.
Method 4500-CN
-
E, Cyanide, Colorimetric Method,
referenced in Section 611.611.
Method 4500-CN
-
F, Cyanide, Cyanide-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-CN
-
G, Cyanide, Cyanides Amenable to
Chlorination after Distillation, referenced in Section
611.611.
Method 4500-Cl D, Chlorine, Amperometric Titration
Method, referenced in Section 611.531.
Method 4500-Cl E, Chlorine, Low-Level Amperometric
Titration Method, referenced in Section 611.531.
Method 4500-Cl F, Chlorine, DPD Ferrous Titrimetric
Method, referenced in Section 611.531.
Method 4500-Cl G, Chlorine, DPD Colorimetric Method,
referenced in Section 611.531.
Method 4500-Cl H, Chlorine, Syringaldazine (FACTS)
Method, referenced in Section 611.531.

39
Method 4500-Cl I, Chlorine, Iodometric Electrode Method,
referenced in Section 611.531.
Method 4500-ClO
2
C, Chlorine Dioxide, Amperometric
Method I, referenced in Section 611.531.
Method 4500-ClO
2
D, Chlorine Dioxide, DPD Method,
referenced in Section 611.531.
Method 4500-ClO
2
E, Chlorine Dioxide, Amperometric
Method II (Proposed), referenced in Section 611.531.
Method 4500-F
-
B, Fluoride, Preliminary Distillation Step,
referenced in Section 611.611.
Method 4500-F
-
C, Fluoride, Ion-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-F
-
D, Fluoride, SPADNS Method, referenced
in Section 611.611.
Method 4500-F
-
E, Fluoride, Complexone Method,
referenced in Section 611.611.
Method 4500-H
+
B, pH Value, Electrometric Method,
referenced in Section 611.611.
Method 4500-NO
2
-
B, Nitrogen (Nitrite), Colorimetric
Method, referenced in Section 611.611.
Method 4500-NO
3
-
D, Nitrogen (Nitrate), Nitrate Electrode
Method, referenced in Section 611.611.
Method 4500-NO
3
-
E, Nitrogen (Nitrate), Cadmium
Reduction Method, referenced in Section 611.611.
Method 4500-NO
3
-
F, Nitrogen (Nitrate), Automated
Cadmium Reduction Method, referenced in Section
611.611.
Method 4500-O
3
B, Ozone (Residual) (Proposed), Indigo
Colorimetric Method, referenced in Section 611.531.
Method 4500-P E, Phosphorus, Ascorbic Acid Method,
referenced in Section 611.611.

40
Method 4500-P F, Phosphorus, Automated Ascorbic Acid
Reduction Method, referenced in Section 611.611.
Method 4500-Si D, Silica, Molybdosilicate Method,
referenced in Section 611.611.
Method 4500-Si E, Silica, Heteropoly Blue Method,
referenced in Section 611.611.
Method 4500-Si F, Silica, Automated Method for
Molybdate-Reactive Silica, referenced in Section 611.611.
Method 6651, Glyphosate Herbicide (Proposed), referenced
in Section 611.645.
Method 7110 B, Gross Alpha and Beta Radioactivity
(Total, Suspended, and Dissolved), Evaporation Method for
Gross Alpha-Beta, referenced in Section 611.720.
Method 7110 C, Gross Alpha and Beta Radioactivity
(Total, Suspended, and Dissolved), Coprecipitation Method
for Gross Alpha Radioactivity in Drinking Water
(Proposed), referenced in Section 611.720.
Method 7500-Cs B, Radioactive Cesium, Precipitation
Method, referenced in Section 611.720.
Method 7500-
3
H B, Tritium, Liquid Scintillation
Spectrometric Method, referenced in Section 611.720.
Method 7500-I B, Radioactive Iodine, Precipitation
Method, referenced in Section 611.720.
Method 7500-I C, Radioactive Iodine, Ion-Exchange
Method, referenced in Section 611.720.
Method 7500-I D, Radioactive Iodine, Distillation Method,
referenced in Section 611.720.
Method 7500-Ra B, Radium, Precipitation Method,
referenced in Section 611.720.
Method 7500-Ra C, Radium, Emanation Method,
referenced in Section 611.720.
Method 7500-Ra D, Radium, Sequential Precipitation

41
Method (Proposed), referenced in Section 611.720.
Method 7500-Sr B, Total Radioactive Strontium and
Strontium 90, Precipitation Method, referenced in Section
611.720.
Method 7500-U B, Uranium, Radiochemical Method
(Proposed), referenced in Section 611.720.
Method 7500-U C, Uranium, Isotopic Method (Proposed),
referenced in Section 611.720.
Method 9215 B, Heterotrophic Plate Count, Pour Plate
Method, referenced in Section 611.531.
Method 9221 A, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Introduction,
referenced in Sections 611.526 and 611.531.
Method 9221 B, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Standard Total
Coliform Fermentation Technique, referenced in Sections
611.526 and 611.531.
Method 9221 C, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Estimation of
Bacterial Density, referenced in Sections 611.526 and
611.531.
Method 9221 D, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Presence-Absence (P-
A) Coliform Test, referenced in Section 611.526.
Method 9221 E, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Fecal Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 A, Membrane Filter Technique for Members
of the Coliform Group, Introduction, referenced in Sections
611.526 and 611.531.
Method 9222 B, Membrane Filter Technique for Members
of the Coliform Group, Standard Total Coliform Membrane
Filter Procedure, referenced in Sections 611.526 and
611.531.

42
Method 9222 C, Membrane Filter Technique for Members
of the Coliform Group, Delayed-Incubation Total Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 D, Membrane Filter Technique for Members
of the Coliform Group, Fecal Coliform Membrane Filter
Procedure, referenced in Section 611.531.
Method 9223, Chromogenic Substrate Coliform Test
(Proposed) (also referred to as the variations “Autoanalysis
Colilert System” and “Colisure Test”), referenced in
Sections 611.526, and 611.531.
Method 9223 B, Chromogenic Substrate Coliform Test
(Proposed), referenced in Section 611.1004.
“Supplement to the 18th Edition of Standard Methods for the
Examination of Water and Wastewater,” American Public Health
Association, 1994.
Method 6610, Carbamate Pesticide Method, referenced in
Section 611.645.
“Standard Methods for the Examination of Water and
Wastewater,” 19th Edition, 1995 (referred to as “Standard
Methods, 19th ed.”).
Method 2130 B, Turbidity, Nephelometric Method,
referenced in Section 611.531.
Method 2320 B, Alkalinity, Titration Method, referenced in
Section 611.611.
Method 2510 B, Conductivity, Laboratory Method,
referenced in Section 611.611.
Method 2550, Temperature, Laboratory, and Field
Methods, referenced in Section 611.611.
Method 3111 B, Metals by Flame Atomic Absorption
Spectrometry, Direct Air-Acetylene Flame Method,
referenced in Sections 611.611 and 611.612.
Method 3111 D, Metals by Flame Atomic Absorption
Spectrometry, Direct Nitrous Oxide-Acetylene Flame
Method, referenced in Section 611.611.

43
Method 3112 B, Metals by Cold-Vapor Atomic Absorption
Spectrometry, Cold-Vapor Atomic Absorption
Spectrometric Method, referenced in Section 611.611.
Method 3113 B, Metals by Electrothermal Atomic
Absorption Spectrometry, Electrothermal Atomic
Absorption Spectrometric Method, referenced in Sections
611.611 and 611.612.
Method 3114 B, Metals by Hydride Generation/Atomic
Absorption Spectrometry, Manual Hydride
Generation/Atomic Absorption Spectrometric Method,
referenced in Section 611.611.
Method 3120 B, Metals by Plasma Emission Spectroscopy,
Inductively Coupled Plasma (ICP) Method, referenced in
Sections 611.611 and 611.612.
Method 3500-Ca D, Calcium, EDTA Titrimetric Method,
referenced in Section 611.611.
Method 3500-Mg E, Magnesium, Calculation Method,
referenced in Section 611.611.
Method 4110 B, Determination of Anions by Ion
Chromatography, Ion Chromatography with Chemical
Suppression of Eluent Conductivity, referenced in Section
611.611.
Method 4500-Cl D, Chlorine, Amperometric Titration
Method, referenced in Sections 611.381 and 611.531.
Method 4500-Cl E, Chlorine, Low-Level Amperometric
Titration Method, referenced in Sections 611.381 and
611.531.
Method 4500-Cl F, Chlorine, DPD Ferrous Titrimetric
Method, referenced in Sections 611.381 and 611.531.
Method 4500-Cl G, Chlorine, DPD Colorimetric Method,
referenced in Sections 611.381 and 611.531.
Method 4500-Cl H, Chlorine, Syringaldazine (FACTS)
Method, referenced in Sections 611.381 and 611.531.

44
Method 4500-Cl I, Chlorine, Iodometric Electrode Method,
referenced in Sections 611.381 and 611.531.
Method 4500-ClO
2
C, Chlorine Dioxide, Amperometric
Method I, referenced in Section 611.531.
Method 4500-ClO
2
D, Chlorine Dioxide, DPD Method,
referenced in Sections 611.381 and 611.531.
Method 4500-ClO
2
E, Chlorine Dioxide, Amperometric
Method II, referenced in Sections 611.381 and 611.531.
Method 4500-CN
-
C, Cyanide, Total Cyanide after
Distillation, referenced in Section 611.611.
Method 4500-CN
-
E, Cyanide, Colorimetric Method,
referenced in Section 611.611.
Method 4500-CN
-
F, Cyanide, Cyanide-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-CN
-
G, Cyanide, Cyanides Amenable to
Chlorination after Distillation, referenced in Section
611.611.
Method 4500-F
-
B, Fluoride, Preliminary Distillation Step,
referenced in Section 611.611.
Method 4500-F
-
C, Fluoride, Ion-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-F
-
D, Fluoride, SPADNS Method, referenced
in Section 611.611.
Method 4500-F
-
E, Fluoride, Complexone Method,
referenced in Section 611.611.
Method 4500-H
+
B, pH Value, Electrometric Method,
referenced in Section 611.611.
Method 4500-NO
2
-
B, Nitrogen (Nitrite), Colorimetric
Method, referenced in Section 611.611.
Method 4500-NO
3
-
D, Nitrogen (Nitrate), Nitrate Electrode
Method, referenced in Section 611.611.

45
Method 4500-NO
3
-
E, Nitrogen (Nitrate), Cadmium
Reduction Method, referenced in Section 611.611.
Method 4500-NO
3
-
F, Nitrogen (Nitrate), Automated
Cadmium Reduction Method, referenced in Section
611.611.
Method 4500-O
3
B, Ozone (Residual) (Proposed), Indigo
Colorimetric Method, referenced in Section 611.531.
Method 4500-P E, Phosphorus, Ascorbic Acid Method,
referenced in Section 611.611.
Method 4500-P F, Phosphorus, Automated Ascorbic Acid
Reduction Method, referenced in Section 611.611.
Method 4500-Si D, Silica, Molybdosilicate Method,
referenced in Section 611.611.
Method 4500-Si E, Silica, Heteropoly Blue Method,
referenced in Section 611.611.
Method 4500-Si F, Silica, Automated Method for
Molybdate-Reactive Silica, referenced in Section 611.611.
Method 5910 B, UV Absorbing Organic Constituents,
Ultraviolet Absorption Method, referenced in Section
611.381.
Method 6251 B, Disinfection Byproducts: Haloacetic Acids
and Trichlorophenol, Micro Liquid-Liquid Extraction Gas
Chromatographic Method, referenced in Section 611.381.
Method 6610, Carbamate Pesticide Method, referenced in
Section 611.645.
Method 6651, Glyphosate Herbicide (Proposed), referenced
in Section 611.645.
Method 7110 B, Gross Alpha and Gross Beta
Radioactivity, Evaporation Method for Gross Alpha-Beta,
referenced in Section 611.720.
Method 7110 C, Gross Alpha and Beta Radioactivity
(Total, Suspended, and Dissolved), Coprecipitation Method
for Gross Alpha Radioactivity in Drinking Water

46
(Proposed), referenced in Section 611.720.
Method 7120 B, Gamma-Emitting Radionuclides, Gamma
Spectrometric Method, referenced in Section 611.720.
Method 7500-Cs B, Radioactive Cesium, Precipitation
Method, referenced in Section 611.720.
Method 7500-
3
H B, Tritium, Liquid Scintillation
Spectrometric Method, referenced in Section 611.720.
Method 7500-I B, Radioactive Iodine, Precipitation
Method, referenced in Section 611.720.
Method 7500-I C, Radioactive Iodine, Ion-Exchange
Method, referenced in Section 611.720.
Method 7500-I D, Radioactive Iodine, Distillation Method,
referenced in Section 611.720.
Method 7500-Ra B, Radium, Precipitation Method,
referenced in Section 611.720.
Method 7500-Ra C, Radium, Emanation Method,
referenced in Section 611.720.
Method 7500-Ra D, Radium, Sequential Precipitation
Method, referenced in Section 611.720.
Method 7500-Sr B, Total Radiactive Strontium and
Strontium 90, Precipitation Method, referenced in Section
611.720.
Method 7500-U B, Uranium, Radiochemical Method,
referenced in Section 611.720.
Method 7500-U C, Uranium, Isotopic Method, referenced
in Section 611.720.
Method 9215 B, Heterotrophic Plate Count, Pour Plate
Method, referenced in Section 611.531.
Method 9221 A, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Introduction,
referenced in Sections 611.526 and 611.531.

47
Method 9221 B, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Standard Total
Coliform Fermentation Technique, referenced in Sections
611.526 and 611.531.
Method 9221 C, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Estimation of
Bacterial Density, referenced in Sections 611.526 and
611.531.
Method 9221 D, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Presence-Absence (P-
A) Coliform Test, referenced in Section 611.526.
Method 9221 E, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Fecal Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 A, Membrane Filter Technique for Members
of the Coliform Group, Introduction, referenced in Sections
611.526 and 611.531.
Method 9222 B, Membrane Filter Technique for Members
of the Coliform Group, Standard Total Coliform Membrane
Filter Procedure, referenced in Sections 611.526 and
611.531.
Method 9222 C, Membrane Filter Technique for Members
of the Coliform Group, Delayed-Incubation Total Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 D, Membrane Filter Technique for Members
of the Coliform Group, Fecal Coliform Membrane Filter
Procedure, referenced in Section 611.531.
Method 9222 G, Membrane Filter Technique for Members
of the Coliform Group, MF Partition Procedures,
referenced in Section 611.526.
Method 9223, Chromogenic Substrate Coliform Test (also
referred to as the variations “Autoanalysis Colilert System”
and “Colisure Test”), referenced in Sections 611.526, and
611.531.
Method 9223 B, Chromogenic Substrate Coliform Test
(Proposed), referenced in Section 611.1004.

48
“Supplement to the 19th Edition of Standard Methods for the
Examination of Water and Wastewater,” American Public Health
Association, 1996.
Method 5310 B, TOC, Combustion-Infrared Method,
referenced in Section 611.381.
Method 5310 C, TOC, Persulfate-Ultraviolet Oxidation
Method, referenced in Section 611.381.
Method 5310 D, TOC, Wet-Oxidation Method, referenced
in Section 611.381.
“Standard Methods for the Examination of Water and
Wastewater,” 20th Edition, 1998 (referred to as “Standard
Methods, 20th ed.”).
Method 2130 B, Turbidity, Nephelometric Method,
referenced in Section 611.531.
Method 2320 B, Alkalinity, Titration Method, referenced in
Section 611.611.
Method 2510 B, Conductivity, Laboratory Method,
referenced in Section 611.611.
Method 2550, Temperature, Laboratory, and Field
Methods, referenced in Section 611.611.
Method 3120 B, Metals by Plasma Emission Spectroscopy,
Inductively Coupled Plasma (ICP) Method, referenced in
Section Sections 611.611 and 611.612.
Method 3500-Ca B, Calcium, EDTA Titrimetric Method,
referenced in Section 611.611.
Method 3500-Mg B, Magnesium, EDTA Titrimetric
Method, referenced in Section 611.611.
Method 4110 B, Determination of Anions by Ion
Chromatography, Ion Chromatography with Chemical
Suppression of Eluent Conductivity, referenced in Section
611.611.
Method 4500-CN
-
C, Cyanide, Total Cyanide after

49
Distillation, referenced in Section 611.611.
Method 4500-CN
-
E, Cyanide, Colorimetric Method,
referenced in Section 611.611.
Method 4500-CN
-
F, Cyanide, Cyanide-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-CN
-
G, Cyanide, Cyanides Amenable to
Chlorination after Distillation, referenced in Section
611.611.
Method 4500-Cl D, Chlorine, Amperometric Titration
Method, referenced in Section 611.531.
Method 4500-Cl E, Chlorine, Low-Level Amperometric
Titration Method, referenced in Section 611.531.
Method 4500-Cl F, Chlorine, DPD Ferrous Titrimetric
Method, referenced in Section 611.531.
Method 4500-Cl G, Chlorine, DPD Colorimetric Method,
referenced in Section 611.531.
Method 4500-Cl H, Chlorine, Syringaldazine (FACTS)
Method, referenced in Section 611.531.
Method 4500-Cl I, Chlorine, Iodometric Electrode Method,
referenced in Section 611.531.
Method 4500-ClO
2
C, Chlorine Dioxide, Amperometric
Method I, referenced in Section 611.531.
Method 4500-ClO
2
D, Chlorine Dioxide, DPD Method,
referenced in Section 611.531.
Method 4500-ClO
2
E, Chlorine Dioxide, Amperometric
Method II (Proposed), referenced in Section and
611.531.
Method 4500-F
-
B, Fluoride, Preliminary Distillation Step,
referenced in Section 611.611.
Method 4500-F
-
C, Fluoride, Ion-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-F
-
D, Fluoride, SPADNS Method, referenced

50
in Section 611.611.
Method 4500-F
-
E, Fluoride, Complexone Method,
referenced in Section 611.611.
Method 4500-H
+
B, pH Value, Electrometric Method,
referenced in Section 611.611.
Method 4500-NO
2
-
B, Nitrogen (Nitrite), Colorimetric
Method, referenced in Section 611.611.
Method 4500-NO
3
-
D, Nitrogen (Nitrate), Nitrate Electrode
Method, referenced in Section 611.611.
Method 4500-NO
3
-
E, Nitrogen (Nitrate), Cadmium
Reduction Method, referenced in Section 611.611.
Method 4500-NO
3
-
F, Nitrogen (Nitrate), Automated
Cadmium Reduction Method, referenced in Section
611.611.
Method 4500-O
3
B, Ozone (Residual) (Proposed), Indigo
Colorimetric Method, referenced in Section 611.531.
Method 4500-P E, Phosphorus, Ascorbic Acid Method,
referenced in Section 611.611.
Method 4500-P F, Phosphorus, Automated Ascorbic Acid
Reduction Method, referenced in Section 611.611.
Method 4500-Si C, Silica, Molybdosilicate Method,
referenced in Section 611.611.
Method 4500-Si D, Silica, Heteropoly Blue Method,
referenced in Section 611.611.
Method 4500-Si E, Silica, Automated Method for
Molybdate-Reactive Silica, referenced in Section 611.611.
Method 5910 B, UV-Absorbing Organic Constituents,
Ultraviolet Absorption Method, referenced in Sections
611.381 and 611.382.
Method 6251, Disinfection By-Products: Haloacetic Acids
and Trichlorophenol, referenced in Section 611.381.

51
Method 6610, Carbamate Pesticide Method, referenced in
Section 611.645.
Method 6651, Glyphosate Herbicide (Proposed), referenced
in Section 611.645.
Method 7110 B, Gross Alpha and Gross Beta
Radioactivity, Evaporation Method for Gross Alpha-Beta,
referenced in Section 611.720.
Method 7110 C, Gross Alpha and Beta Radioactivity
(Total, Suspended, and Dissolved), Coprecipitation Method
for Gross Alpha Radioactivity in Drinking Water
(Proposed), referenced in Section 611.720.
Method 7120-B 7120, Gamma-Emitting Radionuclides,
Gamma Spectrometric Method, referenced in Section
611.720.
Method 7500-Cs B, Radioactive Cesium, Precipitation
Method, referenced in Section 611.720.
Method 7500-
3
H B, Tritium, Liquid Scintillation
Spectrometric Method, referenced in Section 611.720.
Method 7500-I B, Radioactive Iodine, Precipitation
Method, referenced in Section 611.720.
Method 7500-I C, Radioactive Iodine, Ion-Exchange
Method, referenced in Section 611.720.
Method 7500-I D, Radioactive Iodine, Distillation Method,
referenced in Section 611.720.
Method 7500-Ra B, Radium, Precipitation Method,
referenced in Section 611.720.
Method 7500-Ra C, Radium, Emanation Method,
referenced in Section 611.720.
Method 7500-Ra D, Radium, Sequential Precipitation
Method, referenced in Section 611.720.
Method 7500-Sr B, Total Radiactive Radioactive Strontium
and Strontium 90, Precipitation Method, referenced in
Section 611.720.

52
Method 7500-U B, Uranium, Radiochemical Method,
referenced in Section 611.720.
Method 7500-U C, Uranium, Isotopic Method, referenced
in Section 611.720.
Method 9215 B, Heterotrophic Plate Count, Pour Plate
Method, referenced in Section 611.531.
Method 9221 A, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Introduction,
referenced in Sections 611.526 and 611.531.
Method 9221 B, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Standard Total
Coliform Fermentation Technique, referenced in Sections
611.526 and 611.531.
Method 9221 C, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Estimation of
Bacterial Density, referenced in Sections 611.526 and
611.531.
Method 9221 D, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Presence-Absence (P-
A) Coliform Test, referenced in Sections 611.526.
Method 9221 E, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Fecal Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9221 F, Multiple-Tube Fermentation Technique for
Members of the Coliform Group, Escherichia Coli
Procedure (Proposed), referenced in Section 611.802.
Method 9222 A, Membrane Filter Technique for Members
of the Coliform Group, Introduction, referenced in Sections
611.526 and 611.531.
Method 9222 B, Membrane Filter Technique for Members
of the Coliform Group, Standard Total Coliform Membrane
Filter Procedure, referenced in Sections 611.526 and
611.531.
Method 9222 C, Membrane Filter Technique for Members

53
of the Coliform Group, Delayed-Incubation Total Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 D, Membrane Filter Technique for Members
of the Coliform Group, Fecal Coliform Membrane Filter
Procedure, referenced in Section 611.531.
Method 9222 G, Membrane Filter Technique for Members
of the Coliform Group, MF Partition Procedures,
referenced in Section 611.526.
Method 9223, Chromogenic Substrate Coliform Test (also
referred to as the variations “Autoanalysis Colilert System”
and “Colisure Test”), referenced in Sections 611.526,
611.531.
Method 9223 B, Chromogenic Substrate Coliform Test
(also referred to as the variations “Autoanalysis Colilert
System” and “Colisure Test”), referenced in Sections
611.802 and 611.1004.
Method 9230 B, Fecal Streptococcus and Enterococcus
Groups, Multiple Tube Techniques, referenced in Section
611.802.
Method 9230 C, Fecal Streptococcus and Enterococcus
Groups, Membrane Filter Techniques, referenced in
Section 611.802.
“Standard Methods for the Examination of Water and
Wastewater,” 21st Edition, 2005 (referred to as “Standard
Methods, 21st ed.”).
Method 2130 B, Turbidity, Nephelometric Method,
referenced in Section 611.531.
Method 2320 B, Alkalinity, Titration Method, referenced in
Section 611.611.
Method 2510 B, Conductivity, Laboratory Method,
referenced in Section 611.611.
Method 2550, Temperature, Laboratory, and Field
Methods, referenced in Section 611.611.
Method 3111 B, Metals by Flame Atomic Absorption

54
Spectrometry, Direct Air-Acetylene Flame Method,
referenced in Sections 611.611 and 611.612.
Method 3111 D, Metals by Flame Atomic Absorption
Spectrometry, Direct Nitrous Oxide-Acetylene Flame
Method, referenced in Section 611.611.
Method 3112 B, Metals by Cold-Vapor Atomic Absorption
Spectrometry, Cold-Vapor Atomic Absorption
Spectrometric Method, referenced in Section 611.611.
Method 3113 B, Metals by Electrothermal Atomic
Absorption Spectrometry, Electrothermal Atomic
Absorption Spectrometric Method, referenced in Sections
611.611 and 611.612.
Method 3114 B, Metals by Hydride Generation/Atomic
Absorption Spectrometry, Manual Hydride
Generation/Atomic Absorption Spectrometric Method,
referenced in Section 611.611.
Method 3120 B, Metals by Plasma Emission Spectroscopy,
Inductively Coupled Plasma (ICP) Method, referenced in
Sections 611.611 and 611.612.
Method 3500-Ca B, Calcium, EDTA Titrimetric Method,
referenced in Section 611.611.
Method 3500-Ca D, Calcium, EDTA Titrimetric Method,
referenced in Section 611.611.
Method 3500-Mg B, Magnesium, Calculation Method,
referenced in Section 611.611.
Method 4110 B, Determination of Anions by Ion
Chromatography, Ion Chromatography with Chemical
Suppression of Eluent Conductivity, referenced in Section
611.611.
Method 4500-Cl D, Chlorine, Amperometric Titration
Method, referenced in Section 611.381.
Method 4500-Cl E, Chlorine, Low-Level Amperometric
Titration Method, referenced in Section 611.381.
Method 4500-Cl F, Chlorine, DPD Ferrous Titrimetric

55
Method, referenced in Section 611.381.
Method 4500-Cl G, Chlorine, DPD Colorimetric Method,
referenced in Section 611.381.
Method 4500-Cl H, Chlorine, Syringaldazine (FACTS)
Method, referenced in Section 611.381.
Method 4500-Cl I, Chlorine, Iodometric Electrode Method,
referenced in Section 611.381.
Method 4500-ClO
2
C, Chlorine Dioxide, Amperometric
Method I, referenced in Section 611.531.
Method 4500-ClO
2
E, Chlorine Dioxide, Amperometric
Method II (Proposed), referenced in Section and 611.381.
Method 4500-CN
-
E, Cyanide, Colorimetric Method,
referenced in Section 611.611.
Method 4500-CN
-
F, Cyanide, Cyanide-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-CN
-
G, Cyanide, Cyanides Amenable to
Chlorination after Distillation, referenced in Section
611.611.
Method 4500-F
-
B, Fluoride, Preliminary Distillation Step,
referenced in Section 611.611.
Method 4500-F
-
C, Fluoride, Ion-Selective Electrode
Method, referenced in Section 611.611.
Method 4500-F
-
D, Fluoride, SPADNS Method, referenced
in Section 611.611.
Method 4500-F
-
E, Fluoride, Complexone Method,
referenced in Section 611.611.
Method 4500-H
+
B, pH Value, Electrometric Method,
referenced in Section 611.611.
Method 4500-NO
2
-
B, Nitrogen (Nitrite), Colorimetric
Method, referenced in Section 611.611.
Method 4500-NO
3
-
D, Nitrogen (Nitrate), Nitrate Electrode

56
Method, referenced in Section 611.611.
Method 4500-NO
3
-
E, Nitrogen (Nitrate), Cadmium
Reduction Method, referenced in Section 611.611.
Method 4500-NO
3
-
F, Nitrogen (Nitrate), Automated
Cadmium Reduction Method, referenced in Section
611.611.
Method 4500-O
3
B, Ozone (Residual) (Proposed), Indigo
Colorimetric Method, referenced in Section 611.531.
Method 4500-P E, Phosphorus, Ascorbic Acid Method,
referenced in Section 611.611.
Method 4500-P F, Phosphorus, Automated Ascorbic Acid
Reduction Method, referenced in Section 611.611.
Method 4500-SiO
2
C, Silica, Molybdosilicate Method,
referenced in Section 611.611.
Method 4500-SiO
2
D, Silica, Heteropoly Blue Method,
referenced in Section 611.611.
Method 4500-SiO
2
E, Silica, Automated Method for
Molybdate-Reactive Silica, referenced in Section 611.611.
Method 5310 B, TOC, Combustion-Infrared Method,
referenced in Section 611.381.
Method 5310 C, TOC, Persulfate-Ultraviolet Oxidation
Method, referenced in Section 611.381.
Method 5310 D, TOC, Wet-Oxidation Method, referenced
in Section 611.381.
Method 5910 B, UV-Absorbing Organic Constituents,
Ultraviolet Absorption Method, referenced in Sections
611.381 and 611.382.
Method 6251, Disinfection By-Products: Haloacetic Acids
and Trichlorophenol, referenced in Section 611.381.
Method 6610, Carbamate Pesticide Method, referenced in
Section 611.645.

57
Method 7110 B, Gross Alpha and Gross Beta
Radioactivity, Evaporation Method for Gross Alpha-Beta,
referenced in Section 611.720.
Method 7110 C, Gross Alpha and Beta Radioactivity
(Total, Suspended, and Dissolved), Coprecipitation Method
for Gross Alpha Radioactivity in Drinking Water
(Proposed), referenced in Section 611.720.
Method 7120, Gamma-Emitting Radionuclides, referenced
in Section 611.720.
Method 7500-Cs B, Radioactive Cesium, Precipitation
Method, referenced in Section 611.720.
Method 7500-
3
H B, Tritium, Liquid Scintillation
Spectrometric Method, referenced in Section 611.720.
Method 7500-I B, Radioactive Iodine, Precipitation
Method, referenced in Section 611.720.
Method 7500-I C, Radioactive Iodine, Ion-Exchange
Method, referenced in Section 611.720.
Method 7500-I D, Radioactive Iodine, Distillation Method,
referenced in Section 611.720.
Method 7500-Ra B, Radium, Precipitation Method,
referenced in Section 611.720.
Method 7500-Ra C, Radium, Emanation Method,
referenced in Section 611.720.
Method 7500-Ra D, Radium, Sequential Precipitation
Method, referenced in Section 611.720.
Method 7500-Sr B, Total Radioactive Strontium and
Strontium 90, Precipitation Method, referenced in Section
611.720.
Method 7500-U B, Uranium, Radiochemical Method,
referenced in Section 611.720.
Method 7500-U C, Uranium, Isotopic Method, referenced
in Section 611.720.

58
Method 9221 A, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Introduction,
referenced in Sections 611.526 and 611.531.
Method 9221 B, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Standard Total
Coliform Fermentation Technique, referenced in Sections
611.526 and 611.531.
Method 9221 C, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Estimation of
Bacterial Density, referenced in Sections 611.526 and
611.531.
Method 9221 D, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Presence-Absence (P-
A) Coliform Test, referenced in Section 611.526.
Method 9221 E, Multiple-Tube Fermentation Technique
for Members of the Coliform Group, Fecal Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9221 F, Multiple-Tube Fermentation Technique for
Members of the Coliform Group, Escherichia Coli
Procedure (Proposed), referenced in Section 611.802.
Method 9222 A, Membrane Filter Technique for Members
of the Coliform Group, Introduction, referenced in Sections
611.526 and 611.531.
Method 9222 B, Membrane Filter Technique for Members
of the Coliform Group, Standard Total Coliform Membrane
Filter Procedure, referenced in Sections 611.526 and
611.531.
Method 9222 C, Membrane Filter Technique for Members
of the Coliform Group, Delayed-Incubation Total Coliform
Procedure, referenced in Sections 611.526 and 611.531.
Method 9222 D, Membrane Filter Technique for Members
of the Coliform Group, Fecal Coliform Membrane Filter
Procedure, referenced in Section 611.531.
Method 9222 G, Membrane Filter Technique for Members
of the Coliform Group, MF Partition Procedures,
referenced in Section 611.526.

59
Method 9223, Chromogenic Substrate Coliform Test (also
referred to as the variations “Autoanalysis Colilert System”
and “Colisure Test”), referenced in Sections 611.526 and
611.531.
Method 9223 B, Chromogenic Substrate Coliform Test
(also referred to as the variations “Autoanalysis Colilert
System” and “Colisure Test”), referenced in Sections
611.802 and 611.1004.
BOARD NOTE: Individual Methods from Standard Methods is are
available online at www.standardmethods.org.
Analytical Technology, Inc. ATI Orion, 529 Main Street, Boston, MA
02129.
Technical Bulletin 601, “Standard Method of Testing for Nitrate in
Drinking Water,” July, 1994, PN 221890-001 (referred to as
“Technical Bulletin 601”), referenced in Section 611.611.
ASTM. American Society for Testing and Materials, 100 Barr Harbor
Drive, West Conshohocken, PA 19428-2959 (610-832-9585).
ASTM Method D511-93 A and B, “Standard Test Methods for
Calcium and Magnesium in Water,” “Test Method A—
Complexometric Titration” & “Test Method B—Atomic
Absorption Spectrophotometric,” approved 1993, referenced in
Section 611.611.
ASTM Method D511-03 A and B, “Standard Test Methods for
Calcium and Magnesium in Water,” “Test Method A—
Complexometric Titration” & “Test Method B—Atomic
Absorption Spectrophotometric,” approved 2003, referenced in
Section 611.611.
ASTM Method D515-88 A, “Standard Test Methods for
Phosphorus in Water,” “Test Method A—Colorimetric Ascorbic
Acid Reduction,” approved August 19, 1988, referenced in Section
611.611.
ASTM Method D859-88
D859-94, “Standard Test Method for
Silica in Water,” approved August 19, 1988
1994, referenced in
Section 611.611.
ASTM Method D859-00, “Standard Test Method for Silica in

60
Water,” approved 2000, referenced in Section 611.611.
ASTM Method D859-05, “Standard Test Method for Silica in
Water,” approved 2005, referenced in Section 611.611.
ASTM Method D1067-92 B, “Standard Test Methods for Acidity
or Alkalinity in Water,” “Test Method B—Electrometric or Color-
Change Titration,” approved May 15, 1992, referenced in Section
611.611.
ASTM Method D1067-02 B, “Standard Test Methods for Acidity
or Alkalinity in Water,” “Test Method B—Electrometric or Color-
Change Titration,” approved in 2002, referenced in Section
611.611.
ASTM Method D1125-91 D1125-95(1999) A, “Standard Test
Methods for Electrical Conductivity and Resistivity of Water,”
“Test Method A—Field and Routine Laboratory Measurement of
Static (Non-Flowing) Samples,” approved June 15, 1991 1995,
reapproved 1999, referenced in Section 611.611.
ASTM Method D1179-93 B, “Standard Test Methods for Fluoride
in Water,” “Test Method B—Ion Selective Electrode,” approved
1993, referenced in Section 611.611.
ASTM Method D1179-99 B, “Standard Test Methods for Fluoride
in Water,” “Test Method B—Ion Selective Electrode,” approved
1999, referenced in Section 611.611.
ASTM Method D1179-04 B, “Standard Test Methods for Fluoride
in Water,” “Test Method B—Ion Selective Electrode,” approved
2004, referenced in Section 611.611.
ASTM Method D1253-86, “Standard Test Method for Residual
Chlorine in Water,” reapproved 1992, referenced in Section
611.381.
ASTM Method D1253-96, “Standard Test Method for Residual
Chlorine in Water,” reapproved 1996, referenced in Section
611.381.
ASTM Method D1253-03, “Standard Test Method for Residual
Chlorine in Water,” reapproved 2003, referenced in Section
Sections 611.381 and 611.531.
ASTM Method D1293-84
D1293-95 A or B, “Standard Test

61
Methods for pH of Water,” “Test Method A—Precise Laboratory
Measurement” & “Test Method B—Routine or Continuous
Measurement,” approved October 26, 1984 1995, referenced in
Section 611.611.
ASTM Method D1293-99 A or B, “Standard Test Methods for pH
of Water,” “Test Method A—Precise Laboratory Measurement” &
“Test Method B—Routine or Continuous Measurement,” approved
1999, referenced in Section 611.611.
ASTM Method D1688-90 D1688-95 A or C, “Standard Test
Methods for Copper in Water,” “Test Method A—Atomic
Absorption, Direct” & “Test Method C—Atomic Absorption,
Graphite Furnace,” approved March 15, 1990 1995, referenced in
Section 611.611.
ASTM Method D1688-02 A or C, “Standard Test Methods for
Copper in Water,” “Test Method A—Atomic Absorption, Direct”
& “Test Method C—Atomic Absorption, Graphite Furnace,”
approved 2002, referenced in Section 611.611.
ASTM Method D2036-91 D2036-98 A or B, “Standard Test
Methods for Cyanide in Water,” “Test Method A—Total Cyanides
after Distillation” & “Test Method B—Cyanides Amenable to
Chlorination by Difference,” approved September 15, 1991 1998,
referenced in Section 611.611.
ASTM Method D2036-06 A or B, “Standard Test Methods for
Cyanide in Water,” “Test Method A—Total Cyanides after
Distillation” & “Test Method B—Cyanides Amenable to
Chlorination by Difference,” approved 2006, referenced in Section
611.611.
ASTM Method D2459-72, “Standard Test Method for Gamma
Spectrometry in Water,” approved July 28, 1972, discontinued
1988, referenced in Section 611.720.
ASTM Method D2460-90, “Standard Test Method for
Radionuclides of Radium in Water,” approved 1990, referenced in
Section 611.720.
ASTM Method D2907-91, “Standard Test Methods for
Microquantities of Uranium in Water by Fluorometry,” “Test
Method A—Direct Fluorometric” & “Test Method B—
Extraction,” approved June 15, 1991, referenced in Section
611.720.

62
ASTM Method D2972-93 D2972-97 B or C, “Standard Test
Methods for Arsenic in Water,” “Test Method B—Atomic
Absorption, Hydride Generation” & “Test Method C—Atomic
Absorption, Graphite Furnace,” approved 1993 1997, referenced in
Section 611.611.
ASTM Method D2972-03 B or C, “Standard Test Methods for
Arsenic in Water,” “Test Method B—Atomic Absorption, Hydride
Generation” & “Test Method C—Atomic Absorption, Graphite
Furnace,” approved 2003, referenced in Section 611.611.
ASTM Method D3223-91 D3223-97, “Standard Test Method for
Total Mercury in Water,” approved September 23, 1991 1997,
referenced in Section 611.611.
ASTM Method D3223-02, “Standard Test Method for Total
Mercury in Water,” approved 2002, referenced in Section 611.611.
ASTM Method D3454-91, “Standard Test Method for Radium-226
in Water,” approved 1991, referenced in Section 611.720.
ASTM Method D3559-96 D, “Standard Test Methods for Lead in
Water,” “Test Method D—Atomic Absorption, Graphite Furnace,”
approved August 6, 1990, referenced in Section 611.611.
ASTM Method D3559-03 D, “Standard Test Methods for Lead in
Water,” “Test Method D—Atomic Absorption, Graphite Furnace,”
approved 2003, referenced in Section 611.611.
ASTM Method D3645-97 B, “Standard Test Methods for
Beryllium in Water,” “Method B—Atomic Absorption, Graphite
Furnace,” approved 1993 1997, referenced in Section 611.611.
ASTM Method D3645-03 B, “Standard Test Methods for
Beryllium in Water,” “Method B—Atomic Absorption, Graphite
Furnace,” approved 2003, referenced in Section 611.611.
ASTM Method D3649-91, “Standard Test Method for High-
Resolution Gamma-Ray Spectrometry of Water,” approved 1991,
referenced in Section 611.720.
ASTM Method D3649-98a, “Standard Test Method for High-
Resolution Gamma-Ray Spectrometry of Water,” approved 1998,
referenced in Section 611.720.

63
ASTM Method D3697-92, “Standard Test Method for Antimony
in Water,” approved June 15, 1992, referenced in Section 611.611.
ASTM Method D3697-02, “Standard Test Method for Antimony
in Water,” approved 2002, referenced in Section 611.611.
ASTM Method D3859-93 D3859-98 A, “Standard Test Methods
for Selenium in Water,” “Method A—Atomic Absorption, Hydride
Method,” approved 1993 1998, referenced in Section 611.611.
ASTM Method D3859-03 A, “Standard Test Methods for
Selenium in Water,” “Method A—Atomic Absorption, Hydride
Method,” approved 2003, referenced in Section 611.611.
ASTM Method D3867-90 A and B, “Standard Test Methods for
Nitrite-Nitrate in Water,” “Test Method A—Automated Cadmium
Reduction” & “Test Method B--Manual B—Manual Cadmium
Reduction,” approved January 10, 1990, referenced in Section
611.611.
ASTM Method D3972-90, “Standard Test Method for Isotopic
Uranium in Water by Radiochemistry,” approved 1990, referenced
in Section 611.720.
ASTM Method D3972-02, “Standard Test Method for Isotopic
Uranium in Water by Radiochemistry,” approved 2002, referenced
in Section 611.720.
ASTM Method D4107-91, “Standard Test Method for Tritium in
Drinking Water,” approved 1991, referenced in Section 611.720.
ASTM Method D4107-98, “Standard Test Method for Tritium in
Drinking Water,” approved 1998 (reapproved 2002), referenced in
Section 611.720.
ASTM Method D4327-91 D4327-97, “Standard Test Method for
Anions in Water by Ion Chromatography,” approved October 15,
1991 1997, referenced in Section 611.611.
ASTM Method D4327-03, “Standard Test Method for Anions in
Water by Ion Chromatography,” approved 2003, referenced in
Section 611.611.
ASTM Method D4785-88, “Standard Test Method for Low-Level
Iodine-131 in Water,” approved 1988, referenced in Section
611.720.

64
ASTM Method D4785-00a, “Standard Test Method for Low-Level
Iodine-131 in Water,” approved 2000, referenced in Section
611.720.
ASTM Method D5174-91, “Standard Test Method for Trace
Uranium in Water by Pulsed-Laser Phosphorimetry,” approved
1991, referenced in Section 611.720.
ASTM Method D5174-02, “Standard Test Method for Trace
Uranium in Water by Pulsed-Laser Phosphorimetry,” approved
2002, referenced in Section 611.720.
ASTM Method D5317-93, “Standard Test Method for
Determination of Chlorinated Organic Acid Compounds in Water
by Gas Chromatography with an Electron Capture Detector,”
approved 1993, referenced in Section 611.645.
ASTM Method D5317-98, “Standard Test Method for
Determination of Chlorinated Organic Acid Compounds in Water
by Gas Chromatography with an Electron Capture Detector,”
approved 1998 (reapproved 2003), referenced in Section 611.645.
ASTM Method D5673-03, “Standard Test Method for Elements in
Water by Inductively Coupled Plasma—Mass Spectrometry,”
approved 2003, referenced in Section 611.720.
ASTM Method D5673-05, “Standard Test Method for Elements in
Water by Inductively Coupled Plasma—Mass Spectrometry,”
approved 2005, referenced in Section 611.720.
ASTM Method D6508-00(2005), “Standard Test Method for
Determination of Dissolved Inorganic Anions in Aqueous Matrices
Using Capillary Ion Electrophoresis and Chromate Electrolyte,”
approved 2000 (revised 2005), referenced in Section 611.611.
ASTM Method D6581-00, “Standard Test Method for Bromate,
Bromide, Chlorate, and Chlorite in Drinking Water by Chemically
Suppressed Ion Chromatography,” approved 2000, referenced in
Section 611.381.
ASTM Method D6919-03, “Standard Test Method for
Determination of Dissolved Alkali and Alkaline Earth Cations and
Ammonium in Water and Wastewater by Ion Chromatography,”
approved 2003, referenced in Section 611.611.

65
ASTM Method D6888-04, “Standard Test Method for Available
Cyanide with Ligand Displacement and Flow Injection Analysis
(FIA) Utilizing Gas Diffusion Separation and Amperometric
Detection,” approved 2004, referenced in Section 611.611.
Bran & Luebbe, 1025 Busch Parkway, Buffalo Grove, IL 60089.
“Fluoride in Water and Wastewater,” Industrial Method #129-
71W, December 1972 (referred to as “Technicon Methods:
Method #129-71W”). See 40 CFR 141.23(k)(1), footnote 11
(2006) (2007), referenced in Section 611.611.
“Fluoride in Water and Wastewater,” #380-75WE, February 1976
(referred to as “Technicon Methods: Method #380-75WE”). See
40 CFR 141.23(k)(1), footnote 11 (2006) (2007), referenced in
Section 611.611.
Charm Sciences, Inc., 659 Andover St., Lawrence, MA 01843–1032:
“Charm E*Colite Presence/Absence Test for Detection and
Identification of Coliform Bacteria and Escherichia coli in
Drinking Water,” January 9, 1998 (referred to as “E*Colite Test”),
referenced in Section 611.802 (also available from USEPA, Water
Resource Center).
CPI International, Inc., 5580 Skylane Blvd., Santa Rosa, CA 95403 (800-
878-7654/fax: 707-545-7901/Internet address:
www.cpiinternational.com).
“Colitag® Product as a Test for Detection and Identification of
Coliforms and E. coli Bacteria in Drinking Water and Source
Water as Required in National Primary Drinking Water
Regulations,” August 2001, referenced in Section 611.526.
EMD Chemicals Inc. (an affiliate of Merck KGgA, Darmstadt, Germany),
480 S. Democrat Road, Gibbstown, NJ 08027–1297. (800-222–0342/e-
mail: adellenbusch@emscience.com).
“Chromocult Coliform Agar Presence/Absence Membrane Filter
Test Method for Detection and Identification of Coliform Bacteria
and Escherichia coli in Finished Waters,” November 2000,
Version 1.0, referenced in Section 611.526
.
“Readycult Coliforms 100 Presence/Absence Test for Detection
and Identification of Coliform Bacteria and Escherichia coli in
Finished Waters,” November 2000, Version 1.0, referenced in

66
Section 611.526.
ERDA Health and Safety Laboratory, New York, NY.
HASL Procedure Manual, HASL 300, 1973. See 40 CFR
141.25(b)(2) (2006) (2007), referenced in Section 611.720.
Georgia Tech Research Institute, Robert Rosson, 925 Dalney Road,
Atlanta, GA 30332 (404–407–6339).
“The Determination of Radium-226 and Radium-228 in Drinking
Water by Gamma-ray Spectrometry Using HPGE or Ge(Li)
Detectors,” Revision 1.2, December 2004 (called “Georgia
Radium Method”), referenced in Section 611.720.
Great Lakes Instruments, Inc., 8855 North 55th Street, Milwaukee, WI
53223.
GLI Method 2, “Turbidity,” Nov. 2, 1992, referenced in Section
611.531.
The Hach Company, P.O. Box 389, Loveland, CO 80539-0389 (800-227-
4224).
“Lead in Drinking Water by Differential Pulse Anodic Stripping
Voltammetry,” Method 1001, August 1999, referenced in Section
611.611.
“Determination of Turbidity by Laser Nephelometry,” January
2000, Revision 2.0 (referred to as “Hach FilterTrak Method
10133”), referenced in Section 611.531.
“Total Coliforms and E. coli Membrane Filtration Method with m-
ColiBlue24® Broth,” Method No. 10029, Revision 2, August 17,
1999 (referred to as “m-ColiBlue24 Test”), referenced in Section
611.802 (also available from USEPA, Water Resource Center).
IDEXX Laboratories, Inc., One IDEXX Drive, Westbrook, Maine 04092
(800-321-0207).
“IDEXX SimPlate TM HPC Test Method for Heterotrophs in
Water,” November 2000 (referred to as “SimPlate method”),
referenced in Section 611.531.
Industrial Test Systems, Inc., 1875 Langston St., Rock Hill, SC 29730.

67
Method D99-003, Revision 3.0, “Free Chlorine Species (HOCl
-
and OCl
-
) by Test Strip,” November 21, 2003 (referred to as “ITS
Method D99-003”), referenced in Section 611.381.
Lachat Instruments, 6645 W. Mill Rd., Milwaukee, WI 53218 (414–358–
4200).
“Digestion and distillation of total cyanide in drinking and
wastewaters using MICRO DIST and determination of cyanide by
flow injection analysis,” Revision 2.1, November 30, 2000
(referred to as “QuikChem Method 10-204-00-1-X”), referenced in
Section 611.611.
Millipore Corporation, Technical Services Department, 80 Ashby Road,
Milford, MA 01730 (800-654-5476).
Colisure Presence/Absence Test for Detection and Identification of
Coliform Bacteria and Escherichia Coli in Drinking Water,
February 28, 1994 (referred to as “Colisure Test”), referenced in
Section 611.526.
NCRP. National Council on Radiation Protection, 7910 Woodmont Ave.,
Bethesda, MD (301-657-2652).
“Maximum Permissible Body Burdens and Maximum Permissible
Concentrations of Radionuclides in Air and in Water for
Occupational Exposure,” NCRP Report Number 22, June 5, 1959,
referenced in Section 611.101.
NSF. National Sanitation Foundation International, 3475 Plymouth Road,
PO Box 130140, Ann Arbor, Michigan 48113-0140 (734-769-8010).
NSF Standard 61, section 9, November 1998, referenced in Sections
611.126 and 611.356.
NTIS. National Technical Information Service, U.S. Department of
Commerce, 5285 Port Royal Road, Springfield, VA 22161 (703-487-4600
or 800-553-6847).
“Interim Radiochemical Methodology for Drinking Water,” EPA
600/4-75-008 (revised), March 1976 (referred to as “USEPA
Interim Radiochemical Methods”), referenced in Section 611.720.
(Pages 1, 4, 6, 9, 13, 16, 24, 29, 34)
“Kelada Automated Test Methods for Total Cyanide, Acid
Dissociable Cyanide, And
and Thiocyanate,” Revision 1.2, August

68
2001, EPA 821/B–01-009 (referred to as “Kelada 01”), referenced
in Section 611.611.
“Maximum Permissible Body Burdens and Maximum Permissible
Concentrations of Radionuclides in Air and in Water for
Occupational Exposure,” NBS (National Bureau of Standards)
Handbook 69, as amended August 1963, U.S. Department of
Commerce, referenced in Section 611.330.
Method 100.1, “Analytical Method for Determination of Asbestos
Fibers in Water,” EPA 600/4-83-043, September 1983, Doc. No.
PB83-260471 (referred to as “USEPA Asbestos Methods-100.1”),
referenced in Section 611.611.
Method 100.2, “Determination of Asbestos Structures over 10-mm
in Length in Drinking Water,” EPA 600/R-94-134, June 1994,
Doc. No. PB94-201902 (referred to as “USEPA Asbestos
Methods-100.2”), referenced in Section 611.611.
“Methods for Chemical Analysis of Water and Wastes,” March
1983, EPA 600/4-79-020, Doc. No. PB84-128677 (referred to as
“USEPA Inorganic Methods”). (Methods 150.1, 150.2, and 245.2,
which formerly appeared in this reference, are available from
USEPA EMSL.), referenced in Section 611.611.
“Methods for the Determination of Inorganic Substances in
Environmental Samples,” August 1993, EPA 600/R-93-100, Doc.
No. PB94-120821 (referred to as “USEPA Environmental Inorganic
Methods”), referenced in Sections 611.381, 611.531, and 611.611.
(For methods 180.1, 300.0, 335.4, 353.2, and 365.1.)
“Methods for the Determination of Metals in Environmental
Samples,” June 1991, EPA 600/4-91-010, Doc. No. PB91-231498
and “Methods for the Determination of Metals in Environmental
Samples—Supplement I,” May 1994, EPA 600/R-94-111, Doc.
No. PB95-125472 (referred to as “USEPA Environmental Metals
Methods”), referenced in Sections 611.611, 611.612, and 611.720.
(For methods 200.7, 200.8, 200.9, and 245.1.)
“Methods for the Determination of Organic and Inorganic
Compounds in Drinking Water, Volume 1” August 2000, EPA
815/R-00/014, Doc. No. PB2000-106981 (referred to as “USEPA
Organic and Inorganic Methods”), referenced in Section 611.381.
(For methods 300.1 and 321.8.)
“Methods for the Determination of Organic Compounds in

69
Drinking Water,” December 1988, revised July 1991, EPA 600/4-
88/039, Doc. No. PB91-231480 (referred to as “USEPA Organic
Methods”), referenced in Sections 611.645 and 611.648. (For
methods 502.2, 505, 507, 508, 508A, 515.1, and 531.1.)
“Methods for the Determination of Organic Compounds in
Drinking Water—Supplement I,” July 1990, EPA 600/4-90/020,
Doc. No. PB91-146027 (referred to as “USEPA Organic
Methods”), referenced in Section 611.645. (For methods 506, 547,
550, 550.1, and 551.)
“Methods for the Determination of Organic Compounds in
Drinking Water—Supplement II,” August 1992, EPA 600/R-
92/129, Doc. No. PB92-207703 (referred to as “USEPA Organic
Methods”), referenced in Sections 611.381 and 611.645. (For
methods 515.2, 524.2, 548.1, 549.1, 552.1, and 555.)
“Methods for the Determination of Organic Compounds in Drinking
Water—Supplement III,” August 1995, EPA 600/R-95/131, Doc.
No. PB95-261616, (referred to as “USEPA Organic Methods”),
referenced in Sections 611.381 and 611.645. (For methods 502.2,
524.2, 551.1, and 552.2.)
“Prescribed Procedures for Measurement of Radioactivity in
Drinking Water,” EPA 600/4-80/032, August 1980, (Doc. No. PB
80-224744) (referred to as “USEPA Radioactivity Methods”),
referenced in Section 611.720. (For methods 900, 901, 901.1, 902,
903, 903.1, 904, 905, 906, 908, 908.1)
“Procedures for Radiochemical Analysis of Nuclear Reactor
Aqueous Solutions,” H.L. Krieger and S. Gold, EPA-R4-73-014,
May 1973, Doc. No. PB222-154/7BA, referenced in Section
611.720.
“Radiochemical Analytical Procedures for Analysis of
Environmental Samples,” March 1979, Doc. No. EMSL LV
053917 (referred to as “USEPA Radiochemical Analyses”),
referenced in Section 611.720. (Pages 1, 19, 33, 65, 87, 92)
“Radiochemistry Procedures Manual,” EPA 520/5-84-006, August
1984, Doc. No. PB84-215581 (referred to as “USEPA
Radiochemistry Methods”), referenced in Section 611.720.
(Methods 00-01, 00-02, 00-07, H-02, Ra-03, Ra-04, Ra-05, Sr-04)
“Technical Notes on Drinking Water Methods,” EPA 600/R-
94/173, October 1994, Doc. No. PB95-104766 (referred to as

70
“USEPA Technical Notes”), referenced in Sections 611.531,
611.611, and 611.685.
BOARD NOTE: USEPA made the following assertion with
regard to this reference at 40 CFR 141.23(k)(1) and 141.24(e) and
(n)(11) (2006) (2007): “This document contains other analytical
test procedures and approved analytical methods that remain
available for compliance monitoring until July 1, 1996.” Also
available online at
http://nepis.epa.gov/EPA/html/Pubs/pubtitleORD.htm under the
document designation “600R94173.”
“Method 1613: Tetra- through Octa-Chlorinated Dioxins and
Furans by Isotope Dilution HRGC/HRMS,” October 1994, EPA
821/B-94/005, Doc. No. 94-104774 (referred to as “Dioxin and
Furan Method 1613”), referenced in Section 611.645.
USEPA Method 326.0, Revision 1.0, “Determination of Inorganic
Oxyhalide Disinfection By-Products in Drinking Water Using Ion
Chromatography Incorporating the Addition of a Suppressor
Acidified Postcolumn Reagent for Trace Bromate Analysis,”
USEPA, June 2002, EPA 815/R-03/007, Doc. No. PB2003-107402
(referred to as “OGWDW Methods, Method 326.0, rev. 1.0”),
referenced in Sections 611.381 and 611.382.
BOARD NOTE: Also available from United States Environmental
Protection Agency, Office of Ground Water and Drinking Water.
New Jersey Department of Environment, Division of Environmental
Quality, Bureau of Radiation and Inorganic Analytical Services, 9 Ewing
Street, Trenton, NJ 08625.
“Determination of Radium 228 in Drinking Water,” August 1990
(referred to as “New Jersey Radium Method”), referenced in
Section 611.720.
New York Department of Health, Radiological Sciences Institute, Center
for Laboratories and Research, Empire State Plaza, Albany, NY 12201.
“Determination of Ra-226 and Ra-228 (Ra-02),” January 1980,
Revised June 1982 (referred to as “New York Radium Method”),
referenced in Section 611.720.
Palintest, Ltd., 21 Kenton Lands Road, P.O. Box 18395, Erlanger, KY
(800-835-9629).

71
“Lead in Drinking Water by Differential Pulse Anodic Stripping
Voltammetry,” Method 1001, August 1999 (referred to as
“Palintest Method 1001”), referenced in Section 611.611.
Standard Methods Online, available online from the Standard Methods
Organization at www.standardmethods.org.
Method 6610 B-04, Carbamate Pesticides, High-Performance
Liquid Chromatographic Method, referenced in Section 611.645.
Method 9230 B-04, Fecal Streptococcus and Enterococcus Groups,
Multiple Tube Techniques, referenced in Section 611.802.
Syngenta Crop Protection, Inc., 410 Swing Road, Post Office Box 18300,
Greensboro, NC 27419 (336-632–6000).
“Atrazine in Drinking Water by Immunoassay,” February 2001
(referred to as “Syngenta AG-625”), referenced in Section
611.645.
United States Department of Energy, available at the Environmental
Measurements Laboratory, U.S. Department of Energy, 376 Hudson
Street, New York, NY 10014-3621.
“EML Procedures Manual,” 27th Edition, Volume 1, 1990
(referred to as “USDOE Manual”), referenced in Section 611.720.
United States Environmental Protection Agency, Office of Ground Water
and Drinking Water (accessible on-line and available by download from
http://www.epa.gov/safewater/methods/)
.
USEPA OGWDW Methods,
Method 317.0, Revision 2.0,
“Determination of Inorganic Oxyhalide Disinfection By-Products
in Drinking Water Using Ion Chromatography with the Addition of
a Postcolumn Reagent for Trace Bromate Analysis,” USEPA, July
2001, EPA 815/B-01/001 (referred to as “OGWDW Methods,
Method 317.0, rev. 2.0”), referenced in Section
Sections 611.381
and 611.382.
USEPA OGWDW Methods, Method 326.0, Revision 1.0,
“Determination of Inorganic Oxyhalide Disinfection By-Products
in Drinking Water Using Ion Chromatography Incorporating the
Addition of a Suppressor Acidified Postcolumn Reagent for Trace
Bromate Analysis,” USEPA, June 2002, EPA 815/R-03/007
(referred to as “OGWDW Methods, Method 326.0, rev. 1.0”),
referenced in Sections 611.381 and 611.382.

72
BOARD NOTE: Also available from NTIS.
USEPA OGWDW Methods, Method 327.0, Revision 1.1,
“Determination of Chlorine Dioxide and Chlorite Ion in Drinking
Water Using Lissamine Green B and Horseradish Peroxidase with
Detection by Visible Spectrophotometry,” USEPA, May 2005,
EPA 815/R-05/008 (referred to as “OGWDW Methods, Method
327.0, rev. 1.1”), referenced in Section Sections 611.381 and
611.531.
USEPA OGWDW Methods, Method 515.4, Revision 1.0,
“Determination of Chlorinated Acids in Drinking Water by Liquid-
Liquid Microextraction, Derivatization and Fast Gas
Chromatography with Electron Capture Detection,” April 2000,
EPA 815/B-00/001 (document file name “met515_4.pdf”)
(referred to as “OGWDW Methods, Method 515.4, rev. 1.0”),
referenced in Section 611.645.
USEPA OGWDW Methods, Method 531.2, Revision 1.0,
“Measurement of N-methylcarbamoyloximes and N-
methylcarbamates in Water by Direct Aqueous Injection HPLC
with Postcolumn Derivatization,” September 2001, EPA 815/B-
01/002 (document file name “met531_2.pdf”) (referred to as
“OGWDW Methods, Method 531.2, rev. 1.0”), referenced in
Section 611.645.
USEPA OGWDW Methods, Method 552.3, Revision 1.0,
“Determination of Haloacetic Acids and Dalapon in Drinking
Water by Liquid-liquid Microextraction, Derivatization, and Gas
Chromatography with Electron Capture Detection,” USEPA, July
2003, EPA 815/B-03/002 (referred to as “OGWDW Methods,
Method 552.3, rev. 1.0”), referenced in Section Sections 611.381
and 611.645
.
USEPA OGWDW Methods, Method 1622 (05), “Method 1622:
Cryptosporidium in Water by Filtration/IMS/FA,” December 2005,
EPA 815/R-05/001 (referred to as “USEPA Method 1622 (05)”),
referenced in Sections 611.1004 and 611.1007.
USEPA OGWDW Methods, Method 1622 (01), “Method 1622:
Cryptosporidium in Water by Filtration/IMS/FA,” April 2001,
EPA 821/R-01/026, (referred to as “USEPA Method 1622 (01)”),
referenced in Section 611.1007.
USEPA OGWDW Methods, Method 1622 (99), “Method 1622:

73
Cryptosporidium in Water by Filtration/IMS/FA,” April 1999,
EPA 821/R-99/001, (referred to as “USEPA Method 1622 (99)”),
referenced in Section 611.1007.
USEPA OGWDW Methods, Method 1623 (05), “Method 1623:
Cryptosporidium and Giardia in Water by Filtration/IMS/FA,”
December 2005, EPA 815/R-05/002 (referred to as “USEPA
Method 1623 (05)”), referenced in Sections 611.1004 and
611.1007.
USEPA OGWDW Methods, Method 1623 (01), “Method 1623:
Cryptosporidium and Giardia in Water by Filtration/IMS/FA,”
April 2001, EPA 821/R-01/025 (referred to as “USEPA Method
1623 (01)”), referenced in Section 611.1007.
USEPA OGWDW Methods, Method 1623 (99), “Method 1623:
Cryptosporidium and Giardia in Water by Filtration/IMS/FA,”
January 1999, EPA 821/R-99/006 (referred to as “USEPA Method
1623 (99)”), referenced in Sections 611.1007.
United States Environmental Protection Agency, EMSL, Cincinnati, OH
45268 (513-569-7586).
“Interim Radiochemical Methodology for Drinking Water,” EPA
600/4-75/008 (revised), March 1976 (referred to as “USEPA
Interim Radiochemical Methods”), referenced in Section 611.720.
See NTIS.
“Methods for the Determination of Organic Compounds in
Drinking Water,” December 1988, revised July 1991, EPA 600/4-
88/039 (referred to as “USEPA Organic Methods”), referenced in
Sections 611.645 and 611.648. (For methods 504.1, 508.1, and
525.2 only.) See NTIS.
“Procedures for Radiochemical Analysis of Nuclear Reactor
Aqueous Solutions,” referenced in Section 611.720. See NTIS.
USEPA, Office of Research and Development, National Exposure
Research Laboratory, Microbiological & Chemical Exposure Assessment
Research Division (accessible on-line and available by download from
http://www.epa.gov/nerlcwww/ordmeth.htm)
.
USEPA Method 200.5, Revision 4.2, “Determination of Trace
Elements in Drinking Water by Axially Viewed Inductively
Coupled Plasma—Atomic Emission Spectrometry,” October 2003,
EPA 600/R-06/115 (referred to as “USEPA NERL Method

74
200.5”), referenced in Sections 611.611 and 611.612.
USEPA Method 415.3, Revision 1.1, “Determination of Total
Organic Carbon and Specific UV Absorbance at 254 nm in Source
Water and Drinking Water,” February 2005, EPA 600/R–05/055
(referred to as “USEPA NERL Method 415.3 (rev. 1.1)”),
referenced in Section 611.381.
USEPA, Science and Technology Branch, Criteria and Standards
Division, Office of Drinking Water, Washington, D.C. 20460.
“Guidance Manual for Compliance with the Filtration and
Disinfection Requirements for Public Water Systems using Surface
Water Sources,” October 1989, referenced in Sections 611.111 and
611.212.
USEPA Water Resource Center (RC-4100T), 1200 Pennsylvania Avenue,
NW, Washington, DC 20460:
“Charm E*Colite Presence/Absence Test for Detection and
Identification of Coliform Bacteria and Escherichia coli in
Drinking Water,” January 9, 1998 (referred to as “E*Colite Test”),
referenced in Section 611.802 (also available from Charm
Sciences, Inc.).
“Total Coliforms and E. coli Membrane Filtration Method with m-
ColiBlue24® Broth,” Method No. 10029, Revision 2, August 17,
1999 (referred to as “m-ColiBlue24 Test”), referenced in Section
611.802 (also available from The Hach Company).
“EPA Method 1600: Enterococci in Water by Membrane
Filtration Using Membrane-Enterococcus Indoxyl–b–D–Glucoside
Agar (mEI),” September 2002, EPA 821/R–02/022 (referred to as
“USEPA Method 1600”) is an approved variation of Standard
Methods, Method 9230 C, “Fecal Streptococcus and Enterococcus
Groups, Membrane Filter Techniques” (which has not itself been
approved for use by USEPA) (accessible on-line and available by
download from http://www.epa.gov/nerlcwww/1600sp02.pdf),
referenced in Section 611.802.
“Method 1601: Male-specific (F
+
) and Somatic Coliphage in
Water by Two-step Enrichment Procedure,” April 2001, EPA
821/R–01/030 (referred to as “USEPA Method 1601”) (accessible
on-line and available by download from
http://www.epa.gov/nerlcwww/1601ap01.pdf), referenced in
Section 611.802.

75
“Method 1602: Male-specific (F
+
) and Somatic Coliphage in
Water by Single Agar Layer (SAL) Procedure,” April 2001, EPA
821/R–01/029 (referred to as “USEPA Method 1602”) (accessible
on-line and available by download from
http://www.epa.gov/nerlcwww/1602ap01.pdf), referenced in
Section 611.802.
“Method 1604: Total Coliforms and
Escherichia coli
in Water by
Membrane Filtration Using a Simultaneous Detection Technique
(MI Medium),” September 2002, EPA 821/R-02/024 (referred to
as “USEPA Method 1604”) (accessible on-line and available by
download from http://www.epa.gov/nerlcwww/1604sp02.pdf),
referenced in Section 611.802.
USGS. Books and Open-File Reports Section, United States Geological
Survey, Federal Center, Box 25286, Denver, CO 80225-0425.
Methods available upon request by method number from “Methods
for Analysis by the U.S. Geological Survey National Water
Quality Laboratory—Determination of Inorganic and Organic
Constituents in Water and Fluvial Sediments,” Open File Report
93-125, 1993, or Book 5, Chapter A-1, “Methods for
Determination of Inorganic Substances in Water and Fluvial
Sediments,” 3rd ed., Open-File Report 85-495, 1989, as
appropriate (referred to as “USGS Methods”).
I-1030-85, referenced in Section 611.611.
I-1601-85, referenced in Section 611.611.
I-1700-85, referenced in Section 611.611.
I-2598-85, referenced in Section 611.611.
I-2601-90, referenced in Section 611.611.
I-2700-85, referenced in Section 611.611.
I-3300-85, referenced in Section 611.611.
Methods available upon request by method number from “Methods
for Determination of Radioactive Substances in Water and Fluvial
Sediments,” Chapter A5 in Book 5 of “Techniques of Water-
Resources Investigations of the United States Geological Survey,”
1997.

76
R-1110-76, referenced in Section 611.720.
R-1111-76, referenced in Section 611.720.
R-1120-76, referenced in Section 611.720.
R-1140-76, referenced in Section 611.720.
R-1141-76, referenced in Section 611.720.
R-1142-76, referenced in Section 611.720.
R-1160-76, referenced in Section 611.720.
R-1171-76, referenced in Section 611.720.
R-1180-76, referenced in Section 611.720.
R-1181-76, referenced in Section 611.720.
R-1182-76, referenced in Section 611.720.
Waters Corporation, Technical Services Division, 34 Maple St., Milford,
MA 01757 (800-252-4752 or 508-482-2131, fax: 508-482-3625).
“Waters Test Method for Determination of Nitrite/Nitrate in Water
Using Single Column Ion Chromatography,” Method B-1011,
August 1987 (referred to as “Waters Method B-1011”), referenced
in Section 611.611.
c)
The Board incorporates the following federal regulations by reference:
40 CFR 3.2 (2006)
(2007) (How Does This Part Provide for Electronic
Reporting?), referenced in Section 611.105.
40 CFR 3.3 (2006)
(2007) (What Definitions Are Applicable to This
Part?), referenced in Section 611.105.
40 CFR 3.10 (2006) (2007) (What Are the Requirements for Electronic
Reporting to EPA?), referenced in Section 611.105.
40 CFR 3.2000 (2006)
(2007) (What Are the Requirements Authorized
State, Tribe, and Local Programs’ Reporting Systems Must Meet?),
referenced in Section 611.105.

77
40 CFR 136.3(a) (2006) (2007), referenced in Section 611.1004.
Appendix B to 40 CFR 136 (2006) (2007), referenced in Sections
611.359, 611.609, and 611.646.
d)
This Part incorporates no later amendments or editions.
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART G: LEAD AND COPPER
Section 611.350
General Requirements
a)
Applicability and Scope
1)
Applicability. The requirements of this Subpart G constitute national
primary drinking water regulations for lead and copper. This Subpart G
applies to all community water systems (CWSs) and non-transient, non-
community water systems (NTNCWSs).
2)
Scope. This Subpart G establishes a treatment technique that includes
requirements for corrosion control treatment, source water treatment, lead
service line replacement, and public education. These requirements are
triggered, in some cases, by lead and copper action levels measured in
samples collected at consumers’ taps.
b)
Definitions. For the purposes of only this Subpart G, the following terms have
the following meanings:
“Action level” means that concentration of lead or copper in water
computed pursuant to subsection (c) of this Section that determines, in
some cases, the treatment requirements of this Subpart G that a supplier
must complete. The action level for lead is 0.015 mg/ℓ. The action level
for copper is 1.3 mg/ℓ.
“Corrosion inhibitor” means a substance capable of reducing the
corrosivity of water toward metal plumbing materials, especially lead and
copper, by forming a protective film on the interior surface of those
materials.
“Effective corrosion inhibitor residual” means a concentration of inhibitor
in the drinking water sufficient to form a passivating film on the interior
walls of a pipe.
“Exceed,” as this term is applied to either the lead or the copper action
level, means that the 90th percentile level of the supplier’s samples

78
collected during a six-month monitoring period is greater than the action
level for that contaminant.
“First draw sample” means a one-liter sample of tap water, collected in
accordance with Section 611.356(b)(2), that has been standing in
plumbing pipes for at least six hours and which is collected without
flushing the tap.
“Large system” means a water system that regularly serves water to more
than 50,000 persons.
“Lead service line” means a service line made of lead that connects the
water main to the building inlet, including any lead pigtail, gooseneck, or
other fitting that is connected to such lead line.
“Maximum permissible concentration” or “MPC” means that
concentration of lead or copper for finished water entering the supplier’s
distribution system, designated by the Agency by a SEP pursuant to
Sections 611.110 and 611.353(b) that reflects the contaminant removal
capability of the treatment properly operated and maintained.
BOARD NOTE: Derived from 40 CFR 141.83(b)(4) (2002) (2007). (See
Section 611.353(b)(4)(B).)
“Medium-sized system” means a water system that regularly serves water
to more than 3,300 up to 50,000 or fewer persons.
“Meet,” as this term is applied to either the lead or the copper action level,
means that the 90th percentile level of the supplier’s samples collected
during a six-month monitoring period is less than or equal to the action
level for that contaminant.
“Method detection limit” or “MDL” is as defined at Section 611.646(a).
The MDL for lead is 0.001 mg/ℓ. The MDL for copper is 0.001 mg/ℓ, or
0.020 mg/ℓ by atomic absorption direct aspiration method.
BOARD NOTE: Derived from 40 CFR 141.89(a)(1)(iii) (2002)
(2007).
“Monitoring period” means any of the six-month periods of time during
which a supplier must complete a cycle of monitoring under this Subpart
G.
BOARD NOTE: USEPA refers to these as “monitoring periods.” The
Board uses “six-month monitoring period” to avoid confusion with
“compliance period,” as used elsewhere in this Part and defined at Section
611.101.
“Multiple-family residence” means a building that is currently used as a
multiple-family residence, but not one that is also a “single-family

79
structure.”
“90th percentile level” means that concentration of lead or copper
contaminant exceeded by ten percent or fewer of all samples collected
during a six-month monitoring period pursuant to Section 611.356 (i.e.,
that concentration of contaminant greater than or equal to the results
obtained from 90 percent of the samples). The 90th percentile levels for
copper and lead must be determined pursuant to subsection (c)(3) of this
Section.
BOARD NOTE: Derived from 40 CFR 141.80(c) (2002) (2007).
“Optimal corrosion control treatment” means the corrosion control
treatment that minimizes the lead and copper concentrations at users’ taps
while ensuring that the treatment does not cause the water system to
violate any national primary drinking water regulations.
“Practical quantitation limit” or “PQL” means the lowest concentration of
a contaminant that a well-operated laboratory can reliably achieve within
specified limits of precision and accuracy during routine laboratory
operating conditions. The PQL for lead is 0.005 mg/ℓ. The PQL for
copper is 0.050 mg/ℓ.
BOARD NOTE: Derived from 40 CFR 141.89(a)(1)(ii) and (a)(1)(iv)
(2002) (2007).
“Service line sample” means a one-liter sample of water, collected in
accordance with Section 611.356(b)(3), that has been standing for at least
six hours in a service line.
“Single-family structure” means a building that was constructed as a
single-family residence and which is currently used as either a residence
or a place of business.
“Small system” means a water system that regularly serves water to 3,300
or fewer persons.
BOARD NOTE: Derived from 40 CFR 141.2 (2002)
(2007).
c)
Lead and Copper Action Levels.
1)
The lead action level is exceeded if the 90th percentile lead level is greater
than 0.015 mg/ℓ.
2)
The copper action level is exceeded if the 90th percentile copper level is
greater than 1.3 mg/ℓ.
3)
Suppliers must compute the 90th percentile lead and copper levels as
follows:

80
A)
List the results of all lead or copper samples taken during a six-
month monitoring period in ascending order, ranging from the
sample with the lowest concentration first to the sample with the
highest concentration last. Assign each sampling result a number,
ascending by single integers beginning with the number 1 for the
sample with the lowest contaminant level. The number assigned to
the sample with the highest contaminant level must be equal to the
total number of samples taken.
B)
Determine the number for the 90th percentile sample by
multiplying the total number of samples taken during the six-
month monitoring period by 0.9.
C)
The contaminant concentration in the sample with the number
yielded by the calculation in subsection (c)(3)(B) of this Section is
the 90th percentile contaminant level.
D)
For suppliers that collect five samples per six-month monitoring
period, the 90th percentile is computed by taking the average of
the highest and second highest concentrations.
E)
For a supplier that has been allowed by the Agency to collect
fewer than five samples in accordance with Section 611.356(c), the
sample result with the highest concentration is considered the 90th
percentile value.
d)
Corrosion Control Treatment Requirements.
1)
All suppliers must install and operate optimal corrosion control treatment.
2)
Any supplier that complies with the applicable corrosion control treatment
requirements specified by the Agency pursuant to Sections 611.351 and
611.352 is deemed in compliance with the treatment requirement of
subsection (d)(1) of this Section.
e)
Source water treatment requirements. Any supplier whose system exceeds the
lead or copper action level must implement all applicable source water treatment
requirements specified by the Agency pursuant to Section 611.353.
f)
Lead service line replacement requirements. Any supplier whose system exceeds
the lead action level after implementation of applicable corrosion control and
source water treatment requirements must complete the lead service line
replacement requirements contained in Section 611.354.
g)
Public education requirements. Pursuant to Section 611.355, the supplier must

81
provide a consumer notice of the lead tap water monitoring results to the persons
served at each site (tap) that is tested. Any supplier whose system exceeds the
lead action level must implement the public education requirements contained in
Section 611.355.
h)
Monitoring and analytical requirements. Suppliers must complete all tap water
monitoring for lead and copper, monitoring for water quality parameters, source
water monitoring for lead and copper, and analyses of the monitoring results
under this Subpart G in compliance with Sections 611.356, 611.357, 611.358, and
611.359.
i)
Reporting requirements. Suppliers must report to the Agency any information
required by the treatment provisions of this Subpart G and Section 611.360.
j)
Recordkeeping requirements. Suppliers must maintain records in accordance
with Section 611.361.
k)
Violation of national primary drinking water regulations. Failure to comply with
the applicable requirements of this Subpart G, including conditions imposed by
the Agency by SEP pursuant to these provisions and Section 611.110, will
constitute a violation of the national primary drinking water regulations for lead
or copper.
BOARD NOTE: Derived from 40 CFR 141.80 (2002) (2007), as amended at 72 Fed. Reg. 57782
(October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.351
Applicability of Corrosion Control
a)
Corrosion control required. Suppliers must complete the applicable corrosion
control treatment requirements described in Section 611.352 on or before the
deadlines set forth in this Section.
1)
Large systems. Each large system supplier (one regularly serving more
than 50,000 persons) must complete the corrosion control treatment steps
specified in subsection (d) of this Section, unless it is deemed to have
optimized corrosion control under subsection (b)(2) or (b)(3) of this
Section.
2)
Medium-sized and small systems. Each small system supplier (one
regularly serving 3,300 or fewer persons) and each medium-sized system
(one regularly serving more than 3,300 up to 50,000 persons) must
complete the corrosion control treatment steps specified in subsection (e)
of this Section, unless it is deemed to have optimized corrosion control
under one of subsections (b)(1), (b)(2), or (b)(3) of this Section.

82
b)
Suppliers deemed to have optimized corrosion control. A supplier is deemed to
have optimized corrosion control, and is not required to complete the applicable
corrosion control treatment steps identified in this Section, if the supplier satisfies
one of the criteria specified in subsections (b)(1) through (b)(3) of this Section.
Any such system deemed to have optimized corrosion control under this
subsection, and which has treatment in place, must continue to operate and
maintain optimal corrosion control treatment and meet any requirements that the
Agency determines are appropriate to ensure optimal corrosion control treatment
is maintained.
1)
Small- or medium-sized system meeting action levels. A small system or
medium-sized system supplier is deemed to have optimized corrosion
control if the system meets the lead and copper action levels during each
of two consecutive six-month monitoring periods with monitoring
conducted in accordance with Section 611.356.
2)
SEP for equivalent activities to corrosion control. The Agency must, by a
SEP granted pursuant to Section 611.110, deem any supplier to have
optimized corrosion control treatment if it determines that the supplier has
conducted activities equivalent to the corrosion control steps applicable
under this Section. In making this determination, the Agency must specify
the water quality control parameters representing optimal corrosion
control in accordance with Section 611.352(f). A water supplier that is
deemed to have optimized corrosion control under this subsection (b)(2)
must operate in compliance with the Agency-designated optimal water
quality control parameters in accordance with Section 611.352(g) and
must continue to conduct lead and copper tap and water quality parameter
sampling in accordance with Sections 611.356(d)(3) and 611.357(d),
respectively. A supplier must provide the Agency with the following
information in order to support an Agency SEP determination under this
subsection (b)(2):
A)
The results of all test samples collected for each of the water
quality parameters in Section 611.352(c)(3);
B)
A report explaining the test methods the supplier used to evaluate
the corrosion control treatments listed in Section 611.352(c)(1), the
results of all tests conducted, and the basis for the supplier’s
selection of optimal corrosion control treatment;
C)
A report explaining how the supplier has installed corrosion
control and how the supplier maintains it to insure minimal lead
and copper concentrations at consumer’s taps; and
D)
The results of tap water samples collected in accordance with

83
Section 611.356 at least once every six months for one year after
corrosion control has been installed.
3)
Results less than practical quantitation level (PQL) for lead. Any supplier
is deemed to have optimized corrosion control if it submits results of tap
water monitoring conducted in accordance with Section 611.356 and
source water monitoring conducted in accordance with Section 611.358
that demonstrate that for two consecutive six-month monitoring periods
the difference between the 90th percentile tap water lead level, computed
pursuant to Section 611.350(c)(3), and the highest source water lead
concentration is less than the practical quantitation level for lead specified
in Section 611.359(a)(1)(B)(i).
A)
Those systems whose highest source water lead level is below the
method detection limit (MDL) may also be deemed to have
optimized corrosion control under this subsection (b) if the 90th
percentile tap water lead level is less than or equal to the PQL for
lead for two consecutive six-month monitoring periods.
B)
Any water system deemed to have optimized corrosion control in
accordance with this subsection (b) must continue monitoring for
lead and copper at the tap no less frequently than once every three
calendar years using the reduced number of sites specified in
Section 611.356(c) and collecting the samples at times and
locations specified in Section 611.356(d)(4)(D). Any such system
that has not conducted a round of monitoring pursuant to Section
611.356(d) since September 30, 1997, must have completed a
round of monitoring pursuant to this subsection (b) no later than
September 30, 2000.
C)
Any water system deemed to have optimized corrosion control
pursuant to this subsection (b) must notify the Agency in writing
pursuant to Section 611.360(a)(3) of any upcoming long-term
change in treatment or the addition of a new source, as described in
that Section. The Agency must require any such system to conduct
additional monitoring or to take other action if the Agency
determines that the additional monitoring is necessary and
appropriate to ensure that the supplier maintains minimal levels of
corrosion in its distribution system review and approve the
addition of a new source or any long-term change in water
treatment before the addition or long-term change is implemented
by the water system.
D)
As of July 12, 2001, a A supplier is not deemed to have optimized
corrosion control under this subsection (b), and must implement
corrosion control treatment pursuant to subsection (b)(3)(E) of this

84
Section, unless it meets the copper action level.
E)
Any supplier triggered into corrosion control because it is no
longer deemed to have optimized corrosion control under this
subsection must implement corrosion control treatment in
accordance with the deadlines in subsection (e) of this Section.
Any such large system supplier must adhere to the schedule
specified in that subsection (e) for a medium-sized system
supplier, with the time periods for completing each step being
triggered by the date the supplier is no longer deemed to have
optimized corrosion control under this subsection (b).
c)
Suppliers not required to complete corrosion control steps for having met both
action levels.
1)
Any small system or medium-sized system supplier, otherwise required to
complete the corrosion control steps due to its exceedence of the lead or
copper action level, may cease completing the treatment steps after the
supplier has fulfilled both of the following conditions:
A)
It has met both the copper action level and the lead action level
during each of two consecutive six-month monitoring periods
conducted pursuant to Section 611.356; and
B)
The supplier has submitted the results for those two consecutive
six-month monitoring periods to the Agency.
2)
A supplier that has ceased completing the corrosion control steps pursuant
to subsection (c)(1) of this Section (or the Agency, if appropriate) must
resume completion of the applicable treatment steps, beginning with the
first treatment step that the supplier previously did not complete in its
entirety, if the supplier thereafter exceeds the lead or copper action level
during any monitoring period.
3)
The Agency may, by SEP, require a supplier to repeat treatment steps
previously completed by the supplier where it determines that this is
necessary to properly implement the treatment requirements of this
Section. Any such SEP must explain the basis for this decision.
4)
The requirement for any small- or medium-sized system supplier to
implement corrosion control treatment steps in accordance with subsection
(e) of this Section (including systems deemed to have optimized corrosion
control under subsection (b)(1) of this Section) is triggered whenever any
small- or medium-sized system supplier exceeds the lead or copper action
level.

85
d)
Treatment steps and deadlines for large systems. Except as provided in
subsections (b)(2) and (b)(3) of this Section, large system suppliers must
complete the following corrosion control treatment steps (described in the
referenced portions of Sections 611.352, 611.356, and 611.357) on or before the
indicated dates.
1)
Step 1: The supplier must have conducted initial monitoring (Sections
611.356(d)(1) and 611.357(b)) during two consecutive six-month
monitoring periods on or before January 1, 1993.
2)
Step 2: The supplier must have completed corrosion control studies
(Section 611.352(c)) on or before July 1, 1994.
3)
Step 3: The Agency must have approved optimal corrosion control
treatment (Section 611.352(d)) by a SEP issued pursuant to Section
611.110 on or before January 1, 1995.
4)
Step 4: The supplier must have installed optimal corrosion control
treatment (Section 611.352(e)) by January 1, 1997.
5)
Step 5: The supplier must have completed follow-up sampling (Sections
611.356(d)(2) and 611.357(c)) by January 1, 1998.
6)
Step 6: The Agency must have reviewed installation of treatment and
approve optimal water quality control parameters (Section 611.352(f)) by
July 1, 1998.
7)
Step 7: The supplier must operate in compliance with the Agency-
specified optimal water quality control parameters (Section 611.352(g))
and continue to conduct tap sampling (Sections 611.356(d)(3) and
611.357(d)).
e)
Treatment steps and deadlines for small- and medium-sized system suppliers.
Except as provided in subsection (b) of this Section, small- and medium-sized
system suppliers must complete the following corrosion control treatment steps
(described in the referenced portions of Sections 611.352, 611.356, and 611.357)
by the indicated time periods.
1)
Step 1: The supplier must conduct initial tap sampling (Sections
611.356(d)(1) and 611.357(b)) until the supplier either exceeds the lead
action level or the copper action level or it becomes eligible for reduced
monitoring under Section 611.356(d)(4). A supplier exceeding the lead
action level or the copper action level must recommend optimal corrosion
control treatment (Section 611.352(a)) within six months after the end of
the monitoring period during which it exceeds one of the action levels.

86
2)
Step 2: Within 12 months after the end of the monitoring period during
which a supplier exceeds the lead action level or the copper action level,
the Agency may require the supplier to perform corrosion control studies
(Section 611.352(b)). If the Agency does not require the supplier to
perform such studies, the Agency must, by a SEP issued pursuant to
Section 611.110, specify optimal corrosion control treatment (Section
611.352(d)) within the appropriate of the following timeframes:
A)
for For medium-sized systems, within 18 months after the end of
the monitoring period during which such supplier exceeds the lead
action level or the copper action level,; or
B)
for For small systems, within 24 months after the end of the
monitoring period during which such supplier exceeds the lead
action level or the copper action level.
3)
Step 3: If the Agency requires a supplier to perform corrosion control
studies under step 2 (subsection (e)(2) of this Section), the supplier must
complete the studies (Section 611.352(c)) within 18 months after the
Agency requires that such studies be conducted.
4)
Step 4: If the supplier has performed corrosion control studies under step
2 (subsection (e)(2) of this Section), the Agency must, by a SEP issued
pursuant to Section 611.110, approve optimal corrosion control treatment
(Section 611.352(d)) within six months after completion of step 3
(subsection (e)(3) of this Section).
5)
Step 5: The supplier must install optimal corrosion control treatment
(Section 611.352(e)) within 24 months after the Agency approves such
treatment.
6)
Step 6: The supplier must complete follow-up sampling (Sections
611.356(d)(2) and 611.357(c)) within 36 months after the Agency
approves optimal corrosion control treatment.
7)
Step 7: The Agency must review the supplier’s installation of treatment
and, by a SEP issued pursuant to Section 611.110, approve optimal water
quality control parameters (Section 611.352(f)) within six months after
completion of step 6 (subsection (e)(6) of this Section).
8)
Step 8: The supplier must operate in compliance with the Agency-
approved optimal water quality control parameters (Section 611.352(g))
and continue to conduct tap sampling (Sections 611.356(d)(3) and
611.357(d)).
BOARD NOTE: Derived from 40 CFR 141.81 (2003)
(2007), as amended at 57782 (October

87
10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.353
Source Water Treatment
Suppliers must complete the applicable source water monitoring and treatment requirements
(described in the referenced portions of subsection (b) of this Section, and in Sections 611.356
and 611.358) by the following deadlines.
a)
Deadlines for completing source water treatment steps.
1)
Step 1: A supplier exceeding the lead action level or the copper action
level must complete lead and copper and source water monitoring (Section
611.358(b)) and make a treatment recommendation to the Agency
(subsection (b)(1) of this Section) within six months 180 days after
exceeding the end of the monitoring period during which the supplier
exceeded the pertinent action level.
2)
Step 2: The Agency must, by a SEP issued pursuant to Section 611.110,
make a determination regarding source water treatment (subsection (b)(2)
of this Section) within six months after submission of monitoring results
under step 1.
3)
Step 3: If the Agency requires installation of source water treatment, the
supplier must install that treatment (subsection (b)(3) of this Section)
within 24 months after completion of step 2.
4)
Step 4: The supplier must complete follow-up tap water monitoring
(Section 611.356(d)(2)) and source water monitoring (Section 611.358(c))
within 36 months after completion of step 2.
5)
Step 5: The Agency must, by a SEP issued pursuant to Section 611.110,
review the supplier’s installation and operation of source water treatment
and specify MPCs for lead and copper (subsection (b)(4) of this Section)
within six months after completion of step 4.
6)
Step 6: The supplier must operate in compliance with the Agency-
specified lead and copper MPCs (subsection (b)(4) of this Section) and
continue source water monitoring (Section 611.358(d)).
b)
Description of Source Water Treatment Requirements.
1)
System treatment recommendation. Any supplier that exceeds the lead
action level or the copper action level must recommend in writing to the
Agency the installation and operation of one of the source water

88
treatments listed in subsection (b)(2) of this Section. A supplier may
recommend that no treatment be installed based on a demonstration that
source water treatment is not necessary to minimize lead and copper levels
at users’ taps.
2)
Agency determination regarding source water treatment.
A)
The Agency must complete an evaluation of the results of all
source water samples submitted by the supplier to determine
whether source water treatment is necessary to minimize lead or
copper levels in water delivered to users’ taps.
B)
If the Agency determines that treatment is needed, the Agency
must, by a SEP issued pursuant to Section 611.110, either require
installation and operation of the source water treatment
recommended by the supplier (if any) or require the installation
and operation of another source water treatment from among the
following:
i)
ion exchange;
ii)
reverse osmosis;
iii)
lime softening; or
iv)
coagulation/filtration.
C)
The Agency may request and the supplier must submit such
additional information, on or before a certain date, as the Agency
determines is necessary to aid in its review.
D)
The Agency must notify the supplier in writing of its determination
and set forth the basis for its decision.
3)
Installation of source water treatment. Each supplier must properly install
and operate the source water treatment approved by the Agency under
subsection (b)(2) of this Section.
4)
Agency review of source water treatment and specification of maximum
permissible source water levels (MPCs).
A)
The Agency must review the source water samples taken by the
supplier both before and after the supplier installs source water
treatment, and determine whether the supplier has properly
installed and operated the approved source water treatment.

89
B)
Based on its review, the Agency must, by a SEP issued pursuant to
Section 611.110, approve the lead and copper MPCs for finished
water entering the supplier’s distribution system. Such levels must
reflect the contaminant removal capability of the treatment
properly operated and maintained.
C)
The Agency must explain the basis for its decision under
subsection (b)(4)(B) of this Section.
5)
Continued operation and maintenance. Each supplier must maintain lead
and copper levels below the MPCs approved by the Agency at each
sampling point monitored in accordance with Section 611.358. The
supplier is out of compliance with this subsection if the level of lead or
copper at any sampling point is greater than the MPC approved by the
Agency pursuant to subsection (b)(4)(B) of this Section.
6)
Modification of Agency treatment decisions.
A)
On its own initiative, or in response to a request by a supplier, the
Agency may, by a SEP issued pursuant to Section 611.110, modify
its determination of the source water treatment under subsection
(b)(2) of this Section, or the lead and copper MPCs under
subsection (b)(4) of this Section.
B)
A request for modification by a supplier must be in writing,
explain why the modification is appropriate, and provide
supporting documentation.
C)
The Agency may, by a SEP issued pursuant to Section 611.110,
modify its determination where it concludes that such change is
necessary to ensure that the supplier continues to minimize lead
and copper concentrations in source water.
D)
A revised determination made pursuant to subsection (b)(6)(C) of
this Section must set forth the new treatment requirements, explain
the basis for the Agency’s decision, and provide an
implementation schedule for completing the treatment
modifications.
E)
Any interested person may submit information to the Agency, in
writing, that bears on whether the Agency should, within its
discretion, issue a SEP to modify its determination pursuant to
subsection (h)(1) of this Section. An Agency determination not to
act on a submission of such information by an interested person is
not an Agency determination for the purposes of Sections 39 and
40 of the Act [415 ILCS 5/39 and 40].

90
7)
Treatment decisions by USEPA. Pursuant to the procedures in 40 CFR
142.19, the USEPA Regional Administrator reserves the prerogative to
review treatment determinations made by the Agency under subsections
(b)(2), (b)(4), or (b)(6) of this Section and issue federal treatment
determinations consistent with the requirements of 40 CFR 141.83(b)(2),
(b)(4), and (b)(6), where the Administrator finds that the following is true:
A)
the Agency has failed to issue a treatment determination by the
applicable deadline contained in subsection (a) of this Section;
B)
the Agency has abused its discretion in a substantial number of
cases or in cases affecting a substantial population; or
C)
the technical aspects of the Agency’s determination would be
indefensible in an expected federal enforcement action taken
against a supplier.
BOARD NOTE: Derived from 40 CFR 141.83 (2002) (2007), as amended at 57782 (October 10,
2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.354
Lead Service Line Replacement
a)
Suppliers required to replace lead service lines.
1)
If the results from tap samples taken pursuant to Section 611.356(d)(2)
exceed the lead action level after the supplier has installed corrosion
control or source water treatment (whichever sampling occurs later), the
supplier must recommence replacing lead service lines in accordance with
the requirements of subsection (b) of this Section.
2)
If a supplier is in violation of Section 611.351 or Section 611.353 for
failure to install source water or corrosion control treatment, the Agency
may, by a SEP issued pursuant to Section 611.110, require the supplier to
commence lead service line replacement under this Section after the date
by which the supplier was required to conduct monitoring under Section
611.356(d)(2) has passed.
b)
Annual replacement of lead service lines.
1)
Initiation of a lead service line replacement program.
1A)
A supplier that is required to commence lead service line
replacement pursuant to subsection (a) of this Section must

91
annually replace at least seven percent of the initial number of lead
service lines in its distribution system.
2B)
The initial number of lead service lines is the number of lead lines
in place at the time the replacement program begins.
3C)
The supplier must identify the initial number of lead service lines
in its distribution system, including an identification of the
portions of the system owned by the supplier, based on a materials
evaluation, including the evaluation required under Section
611.356(a) and relevant legal authorities (e.g., contracts, local
ordinances) regarding the portion owned by the system.
4D)
The first year of lead service line replacement must begin on the
date first day following the end of the monitoring period in which
the supplier exceeded the action level in tap sampling referenced in
pursuant to subsection (a) of this Section.
E)
If monitoring is required annually or less frequently, the end of the
monitoring period is September 30 of the calendar year in which
the sampling occurs.
F)
If the Agency has established an alternate monitoring period by a
SEP issued pursuant to Section 611.110, then the end of the
monitoring period will be the last day of that period.
2)
Resumption of a lead service line replacement program after cessation.
A)
A supplier that is resuming a program after cessation of its lead
service line replacement program, as allowed pursuant to
subsection (f) of this Section, must update its inventory of lead
service lines to include those sites that it had previously
determined did not require replacement pursuant to the sampling
provision of subsection (c) of this Section.
B)
The supplier will then divide the updated number of remaining
lead service lines by the number of remaining years in the program
to determine the number of lines that must be replaced per year
(seven percent lead service line replacement is based on a 15-year
replacement program, so that, for example, a supplier resuming
lead service line replacement after previously conducting two
years of replacement would divide the updated inventory by 13).
C)
For a supplier that has completed a 15-year lead service line
replacement program, the Agency must, by a SEP issued pursuant
to Section 611.110, determine a schedule for replacing or retesting

92
lines that were previously tested out under the completed
replacement program, whenever the supplier has re-exceeded the
action level.
c)
Service lines not needing replacement. A supplier is not required to replace any
individual lead service line for which the lead concentrations in all service line
samples taken from that line pursuant to Section 611.356(b)(3) are less than or
equal to 0.015 mg/ℓ.
d)
A water supplier must replace that portion of the lead service line that it owns. In
cases where the supplier does not own the entire lead service line, the supplier
must notify the owner of the line, or the owner’s authorized agent, that the
supplier will replace the portion of the service line that it owns and must offer to
replace the owner’s portion of the line. A supplier is not required to bear the cost
of replacing the privately-owned portion of the line, nor is it required to replace
the privately-owned portion where the owner chooses not to pay the cost of
replacing the privately-owned portion of the line, or where replacing the
privately-owned portion would be precluded by State, local, or common law. A
water supplier that does not replace the entire length of the service line also must
complete the following tasks:
1)
Notice Prior to Commencement of Work.
A)
At least 45 days prior to commencing the partial replacement of a
lead service line, the water supplier must provide notice to the
residents of all buildings served by the line explaining that they
may experience a temporary increase of lead levels in their
drinking water, along with guidance on measures consumers can
take to minimize their exposure to lead.
B)
The Agency, by issuing an appropriate SEP, may allow the water
supplier to provide notice under the previous sentence less than 45
days prior to commencing partial lead service line replacement
where it determines that such replacement is in conjunction with
emergency repairs.
C)
In addition, the water supplier must inform the residents served by
the line that the supplier will, at the supplier’s expense, collect a
sample from each partially-replaced lead service line that is
representative of the water in the service line for analysis of lead
content, as prescribed by Section 611.356(b)(3), within 72 hours
after the completion of the partial replacement of the service line.
The supplier must collect the sample and report the results of the
analysis to the owner and the residents served by the line within
three business days of receiving the results.

93
D)
Mailed notices post-marked within three business days of
receiving the results must be considered “on time.”
2)
The water supplier must provide the information required by subsection
(d)(1) of this Section to the residents of individual dwellings by mail or by
other methods approved by the Agency by a SEP issued pursuant to
Section 611.110. In instances where multi-family dwellings are served by
the service line, the water supplier must have the option to post the
information at a conspicuous location.
e)
Agency determination of shorter replacement schedule.
1)
The Agency must, by a SEP issued pursuant to Section 611.110, require a
supplier to replace lead service lines on a shorter schedule than that
otherwise required by this Section if it determines, taking into account the
number of lead service lines in the system, that such a shorter replacement
schedule is feasible.
2)
The Agency must notify the supplier of its finding pursuant to subsection
(e)(1) of this Section within six months after the supplier is triggered into
lead service line replacement based on monitoring, as referenced in
subsection (a) of this Section.
f)
Cessation of service line replacement.
1)
Any supplier may cease replacing lead service lines whenever it fulfills
both of the following conditions:
A)
First draw tap samples collected pursuant to Section 611.356(b)(2)
meet the lead action level during each of two consecutive six-
month monitoring periods; and
B)
The supplier has submitted those results to the Agency.
2)
If any of the supplier’s first draw tap samples thereafter exceed the lead
action level, the supplier must recommence replacing lead service lines
pursuant to subsection (b)(2) of this Section.
g)
To demonstrate compliance with subsections (a) through (d) of this Section, a
supplier must report to the Agency the information specified in Section
611.360(e).
BOARD NOTE: Derived from 40 CFR 141.84 (2003)
(2007), as amended at 57782 (October
10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)

94
Section 611.355
Public Education and Supplemental Monitoring
A supplier that exceeds the lead action level based on tap water samples collected in accordance
with Section 611.356 must deliver the public education materials required by subsections
subsection (a) and (b) of this Section in accordance with the requirements of subsection (c) (b) of
this Section. A supplier that exceeds the lead action level must sample the tap water of any
customer who requests it in accordance with subsection (c) of this Section. A supplier must
deliver a consumer notice of lead tap water monitoring results to persons who are served by the
supplier at each site that the supplier has tested, as specified in subsection (d) of this Section.
a)
Content of written public education materials.
1)
Community water systems and non-transient non-community water
systems. A CWS or NTNCWS supplier must include the text set forth in
Appendix E of this Part in all of the printed materials it distributes through
its lead public education program. following elements in printed materials
(e.g., brochures and pamphlets) in the same order as listed in subsections
(a)(1)(A) through (a)(1)(F) of this Section. A supplier may delete
information pertaining to lead service lines, upon approval by the Agency
by a SEP issued pursuant to Section 611.110, if no lead service lines exist
anywhere in the water system service area. Public education language at
paragraphs (4)(B)(5) and (4)(D)(2) of Appendix E of this Part may be
modified regarding building permit record availability and consumer
access to these records, if approved by the Agency by a SEP issued
pursuant to Section 611.110. A supplier may also continue to utilize pre-
printed materials that meet the public education language requirements in
40 CFR 141.85 (1991). Any additional information presented by a
supplier must be consistent with the information in Appendix E of this
Part and be in plain English that can be understood by lay persons. In
addition, the supplier must include the language set forth in subsections
(a)(1)(A), (a)(1)(B), and (a)(1)(F) of this Section in the materials, exactly
as written, except for the text in brackets in these subsections, for which
the supplier must include system-specific information. Any additional
information presented by a supplier must be consistent with the
information set forth in subsections (a)(1)(A) through (a)(1)(F) of this
Section, and the supplier must present the additional information in plain
language that can be understood by the general public. The supplier must
submit all written public education materials to the Agency.
BOARD NOTE: At corresponding 40 CFR 141.85(a)(1) (2002), USEPA
allowed the use of pre-printed copies of the public notices whose content
met the requirements of the original lead and copper rule adopted on June
7, 1991 (56 Fed. Reg. 26548). Rather than reference a prior version of
this Section of the Illinois rules, the Board has retained the federal
reference to the prior requirements.

95
A)
IMPORTANT INFORMATION ABOUT LEAD IN YOUR
DRINKING WATER. [INSERT NAME OF SUPPLIER] found
elevated levels of lead in drinking water in some homes/buildings.
Lead can cause serious health problems, especially for pregnant
women and young children. Please read this information closely to
see what you can do to reduce lead in your drinking water.
BOARD NOTE: The supplier must use the verbatim text set forth
in this subsection (a)(1)(A), with the exception that the supplier
must insert its name in place of the bracketed text.
B)
Health effects of lead. Lead can cause serious health problems if
too much enters your body from drinking water or other sources.
It can cause damage to the brain and kidneys, and can interfere
with the production of red blood cells that carry oxygen to all parts
of your body. The greatest risk of lead exposure is to infants,
young children, and pregnant women. Scientists have linked the
effects of lead on the brain with lowered IQ in children. Adults
with kidney problems and high blood pressure can be affected by
low levels of lead more than healthy adults. Lead is stored in the
bones, and it can be released later in life. During pregnancy, the
child receives lead from the mother’s bones, which may affect
brain development.
BOARD NOTE: The supplier must use the verbatim text set forth
in this subsection (a)(1)(B).
C)
Sources of Lead.
i)
Explain what lead is.
ii)
Explain possible sources of lead in drinking water and how
lead enters drinking water. Include information on home
and building plumbing materials and service lines that may
contain lead.
iii)
Discuss other important sources of lead exposure in
addition to drinking water (e.g., paint).
BOARD NOTE: The supplier must use text that provides the
information described in this subsection (a)(1)(C).
D)
Discuss the steps the consumer can take to reduce his or her
exposure to lead in drinking water.

96
i)
Encourage running the water to flush out the lead.
ii)
Explain concerns with using hot water from the tap and
specifically caution against the use of hot water for
preparing baby formula.
iii)
Explain that boiling water does not reduce lead levels.
iv)
Discuss other options consumers can take to reduce
exposure to lead in drinking water, such as alternative
sources or treatment of water.
v)
Suggest that parents have their child’s blood tested for lead.
BOARD NOTE: The supplier must use text that provides the
information described in this subsection (a)(1)(D).
E)
Explain why there are elevated levels of lead in the supplier’s
drinking water (if known) and what the supplier is doing to reduce
the lead levels in homes and buildings in this area.
BOARD NOTE: The supplier must use text that provides the
information described in this subsection (a)(1)(E).
F)
For more information, call us at [INSERT THE SUPPLIER’S
NUMBER] [(IF APPLICABLE), or visit our Web site at [INSERT
THE SUPPLIER’S WEB SITE HERE]]. For more information on
reducing lead exposure around your home/building and the health
effects of lead, visit USEPA’s Web site at
http://www.epa.gov/
lead
or contact your health care provider.
BOARD NOTE: The supplier must use the verbatim text set forth
in this subsection (a)(1)(F), with the exception that the supplier
must insert its name in place of the first segment of bracketed text,
and it must add the second segment of bracketed text and substitute
its Web address for the internal bracketed text.
2)
Non-transient non-community Community water systems. A NTNCWS
must either include the text In addition to including the elements specified
in subsection (a)(1) of this Section,
or must include the text set forth in
Appendix F of this Part in all of the printed materials it distributes through
its lead public education program. A water supplier may delete
information pertaining to lead service lines upon approval by the Agency
by a SEP issued pursuant to Section 611.110 if no lead service lines exist
anywhere in the water system service area. Any additional information
presented by a supplier must be consistent with the information below and

97
be in plain English that can be understood by lay persons. a CWS supplier
must do both of the following:
A)
It must tell consumers how to get their water tested; and
B)
It must discuss lead in plumbing components and the difference
between low-lead and lead-free components.
BOARD NOTE: At corresponding 40 CFR 141.85(a)(1) (2007), USEPA allowed
the State to require prior approval of written public information materials. Rather
than require prior Agency approval, the Board has chosen to allow the Agency to
raise any deficiencies that it may perceive using its existing procedure for review
of public education materials. The Agency has outlined its standard practice for
review of public information materials as follows: The Agency provides a
comprehensive public education packet to the supplier together with the notice
that the supplier has exceeded the lead action level. That packet includes
guidance and templates for the supplier to use in preparing and distributing its
public education materials. The supplier must send a copy of the public education
materials that it distributes to the Agency, and the Agency reviews the copy of the
materials after their distribution to the public. The Agency directly communicates
to the supplier any perceived defects in the materials. The Agency will request
correction when it perceives minor defects in future distributions of the public
education materials, or the Agency will request a redistribution of corrected
public education materials when it perceives major defects in the materials
already distributed.
b)
Content of broadcast materials. A supplier must include the following
information in all public service announcements submitted under its lead public
education program to television and radio stations for broadcast:
1)
Why should everyone want to know the facts about lead and drinking
water? Because unhealthy amounts of lead can enter drinking water
through the plumbing in your home. That’s why I urge you to do what I
did. I had my water tested for (insert “free” or the cost per sample). You
can contact the (insert the name of the city or supplier) for information on
testing and on simple ways to reduce your exposure to lead in drinking
water.
2)
To have your water tested for lead, or to get more information about this
public health concern, please call (insert the phone number of the city or
supplier).
cb)
Delivery of a public education program materials.
1)
In communities where
The public education materials of a supplier that
serves a significant large proportion of the population speaks a language

98
other than non-English-speaking consumers, public education materials
must be communicated contain information in the appropriate languages
regarding the importance of the notice, or it must contain a telephone
number or address where a person served may contact the supplier to
obtain a translated copy of the public education materials or to request
assistance in the appropriate language.
2)
A CWS supplier that exceeds the lead action level on the basis of tap
water samples collected in accordance with Section 611.356 and which is
not already repeating conducting public education tasks pursuant to
subsection (c)(3), (c)(7), or (c)(8) of this Section must, within 60 days
after the end of the monitoring period in which the exceedance occurred,
do each of the following complete the public education tasks according to
the following requirements:
A)
Insert notices in each customer’s water utility bill or disseminate to
each customer by separately mailing a notice containing the
information required by subsection (a)(1) of this Section, along
with the following alert in large print on the water bill itself:
“SOME HOMES IN THIS COMMUNITY HAVE ELEVATED
LEAD LEVELS IN THEIR DRINKING WATER. LEAD CAN
POSE A SIGNIFICANT RISK TO YOUR HEALTH. PLEASE
READ THE ENCLOSED NOTICE FOR FURTHER
INFORMATION.” A CWS supplier having a billing cycle that
does not include a billing within 60 days after exceeding the action
level or a CWS supplier that cannot insert information in the water
utility bill without making major changes to its billing system may
use a separate mailing to deliver the information in subsection
(a)(1) of this Section, as long as the information is delivered to
each customer within 60 days of exceeding the action level. Such
a water supplier must also include the “alert” language specified in
this subsection (c)(2)(A);
B)
Submit the information required by subsection (a)(1) of this
Section to the editorial departments of the major daily and weekly
newspapers circulated throughout the community;
C)
Deliver pamphlets or brochures that contain the public education
materials in paragraphs (2) and (4) of Appendix E of this Part to
facilities and organizations, including the following:
i)
Public schools or local school boards;
ii)
The city or county health department;
iii)
Women, Infants, and Children (WIC) and Head Start

99
programs, whenever available;
iv)
Public and private hospitals and clinics;
v)
Pediatricians;
vi)
Family planning clinics; and
vii)
Local welfare agencies; and
D)
Submit the public service announcement in subsection (b) of this
Section to at least five of the radio and television stations with the
largest audiences within the community served by the supplier.
A)
The CWS supplier must deliver printed materials that meet the
content requirements of subsection (a) of this Section to all of its
bill-paying customers.
B)
Methods of delivery for a CWS supplier.
i)
The CWS supplier must contact customers who are most at
risk by delivering education materials that meet the content
requirements of subsection (a) of this Section to local
public health agencies, even if the agencies are not located
within the supplier’s service area, along with an
informational notice that encourages distribution to all of
the agencies’ potentially affected customers or the
supplier’s users. The supplier must contact the local public
health agencies directly by phone or in person. The local
public health agencies may provide a specific list of
additional community-based organizations that serve the
target populations, which may include organizations
outside the service area of the supplier. If such lists are
provided, the supplier must deliver education materials that
meet the content requirements of subsection (a) of this
Section to each of the organizations on the provided lists.
ii)
The CWS supplier must contact customers who are most at
risk by delivering materials that meet the content
requirements of subsection (a) of this Section to the
organizations listed in subsections (b)(2)(H)(i) through
(b)(2)(H)(vi) that are located within the supplier’s service
area, along with an informational notice that encourages
distribution to all the organization’s potentially affected
customers or supplier’s users.

100
BOARD NOTE: The Board found it necessary to move the
text of 40 CFR 141.85(b)(2)(ii)(B)(
1
) through
(b)(2)(ii)(B)(
6
) (2007), as added at 72 Fed. Reg. 57782
(Oct. 10, 2007), to appear as subsection (b)(2)(H)(i)
through subsection (b)(2)(H)(vi) of this Section, in order to
comport with Illinois Administrative Code codification
requirements relating to allowed indent levels in rules.
iii)
The CWS supplier must make a good faith effort to locate
the organizations listed in subsections (b)(2)(I)(i) through
(b)(2)(I)(iii) of this Section that are located within the
service area and deliver materials that meet the content
requirements of subsection (a) of this Section to them,
along with an informational notice that encourages
distribution to all potentially affected customers or users.
The good faith effort to contact at-risk customers may
include requesting a specific contact list of these
organizations from the local public health agencies, even if
the agencies are not located within the supplier’s service
area.
BOARD NOTE: The Board found it necessary to move the
text of 40 CFR 141.85(b)(2)(ii)(C)(
1
) through
(b)(2)(ii)(C)(
3
) (2007), as added at 72 Fed. Reg. 57782
(Oct. 10, 2007), to appear as subsection (b)(2)(I)(i) through
subsection (b)(2)(I)(iii) of this Section, in order to comport
with Illinois Administrative Code codification requirements
relating to allowed indent levels in rules.
C)
No less often than quarterly, the CWS supplier must provide
information on or in each water bill as long as the system exceeds
the action level for lead. The message on the water bill must
include the following statement exactly as written, except for the
text in brackets for which the supplier must include system-
specific information:
[INSERT NAME OF SUPPLIER] found high levels of lead
in drinking water in some homes. Lead can cause serious
health problems. For more information please call
[INSERT NAME OF SUPPLIER] [or visit (INSERT
SUPPLIER’S WEB SITE HERE)]. The message or
delivery mechanism can be modified in consultation with
the Illinois Environmental Protection Agency, Division of
Public Water Supply; specifically, the Agency may allow a
separate mailing of public education materials to customers
if the water system cannot place the information on water

101
bills.
D)
The CWS supplier must post material meeting the content
requirements of subsection (a) of this Section on the supplier’s
Web site if the CWS supplier serves a population greater than
100,000.
E)
The CWS supplier must submit a press release to newspaper,
television, and radio stations.
F)
In addition to subsections (b)(2)(A) through (b)(2)(E) of this
Section, the CWS supplier must implement at least three activities
from one or more of the categories listed below. The educational
content and selection of these activities must be determined in
consultation with the Agency.
i)
Public Service Announcements.
ii)
Paid advertisements.
iii)
Public Area Information Displays.
iv)
E-mails to customers.
v)
Public Meetings.
vi)
Household Deliveries.
vii)
Targeted Individual Customer Contact.
viii)
Direct material distribution to all multi-family homes and
institutions.
ix)
Other methods approved by the State.
G)
For a CWS supplier that is required to conduct monitoring
annually or less frequently, the end of the monitoring period is
September 30 of the calendar year in which the sampling occurs,
or, if the Agency has established an alternate monitoring period, by
a SEP issued pursuant to Section 611.110, the last day of that
period.
H)
Organizations that the CWS supplier must contact when required
to do so pursuant to subsection (b)(2)(B)(ii) of this Section.
i)
Public and private schools or school boards.

102
ii)
Women, Infants and Children (WIC) and Head Start
programs.
iii)
Public and private hospitals and medical clinics.
vi)
Pediatricians.
v)
Family planning clinics.
vi)
Local welfare agencies.
BOARD NOTE: This subsection (b)(2)(H) corresponds with 40
CFR 141.85(b)(2)(ii)(B)(
1
) through (b)(2)(ii)(B)(
6
) (2007), as
added at 72 Fed. Reg. 57782 (Oct. 10, 2007). The Board found it
necessary to move the text of those federal provisions to comport
with Illinois Administrative Code codification requirements
relating to allowed indent levels in rules.
I)
Organizations that the CWS supplier must contact when required
to do so pursuant to subsection (b)(2)(B)(iii) of this Section.
i)
Licensed childcare centers.
ii)
Public and private preschools.
iii)
Obstetricians-gynecologists and midwives.
BOARD NOTE: This subsection (b)(2)(H) corresponds with 40
CFR 141.85(b)(2)(ii)(C)(
1
) through (b)(2)(ii)(C)(
3
) (2007), as
added at 72 Fed. Reg. 57782 (Oct. 10, 2007). The Board found it
necessary to move the text of those federal provisions to comport
with Illinois Administrative Code codification requirements
relating to allowed indent levels in rules.
3)
A CWS supplier must repeat the tasks contained in subsections (c)(2)(A)
through (c)(2)(D) of this Section for as long as the supplier exceeds the
lead action level, at the following minimum frequency:
A)
Those of subsections (c)(2)(A) through (c)(2)(C) of this Section,
every 12 months; and
B)
Those of subsection (c)(2)(D) of this Section, every six months.
3)
As long as a CWS supplier exceeds the action level, it must repeat the
activities described in subsection (b)(2) of this Section, as described in

103
subsections (b)(3)(A) through (b)(3)(D) of this Section.
A)
A CWS supplier must repeat the tasks contained in subsections
(b)(2)(A), (b)(2)(B) and (b)(2)(D) of this Section every 12 months.
B)
A CWS supplier must repeat tasks contained in subsection
(b)(2)(C) of this Section with each billing cycle.
C)
A CWS supplier serving a population greater than 100,000 must
post and retain material on a publicly accessible Web site pursuant
to subsection (b)(2)(D) of this Section.
D)
The CWS supplier must repeat the task in subsection (b)(2)(E) of
this Section twice every 12 months on a schedule agreed upon with
the Agency by a SEP issued pursuant to Section 611.110. The
Agency must, on a case-by-case basis, by a SEP issued pursuant to
Section 611.110, extend the time for the supplier to complete the
public education tasks set forth in subsection (b)(2) of this Section
beyond the 60-day limit if it determines that the extended time is
needed for implementation purposes; however, the Agency must
issue the SEP granting any extension prior to expiration of the 60-
day deadline.
4)
Within 60 days after it the end of the monitoring period in which a
NTNCWS supplier exceeds the lead action level (unless it already is
repeating public education tasks pursuant to subsection (c)(5) (b)(5) of this
Section), a NTNCWS supplier it must deliver the public education
materials contained in Appendix E or F of this Part specified by
subsection (a) of this Section, as follows in subsections (b)(4)(A) and
(b)(4)(B) of this Section, subject to the limitation set forth in subsection
(b)(4)(C) of this Section:
A)
Post
The NTNCWS supplier must post informational posters on
lead in drinking water in a public place or common area in each of
the buildings served by the supplier; and
B)
Distribute The NTNCWS supplier must distribute informational
pamphlets or brochures on lead in drinking water to each person
served by the NTNCWS supplier. The Agency may, by a SEP
granted pursuant to Section 611.110, allow the system to utilize
electronic transmission in lieu of or combined with printed
materials as long as it achieves at least the same coverage.
C)
For a NTNCWS supplier that is required to conduct monitoring
annually or less frequently, the end of the monitoring period is
September 30 of the calendar year in which the sampling occurs,

104
or, if the Agency has established an alternate monitoring period, by
a SEP issued pursuant to Section 611.110, the last day of that
period.
5)
A NTNCWS supplier must repeat the tasks contained set forth in
subsection (c)(4) (b)(4) of this Section at least once during each calendar
year in which the supplier exceeds the lead action level. The Agency
must, on a case-by-case basis, by a SEP issued pursuant to Section
611.110, extend the time for the supplier to complete the public education
tasks set forth in subsection (b)(2) of this Section beyond the 60-day limit
if it determines that the extended time is needed for implementation
purposes; however, the Agency must issue the SEP granting any extension
prior to expiration of the 60-day deadline.
6)
A supplier may discontinue delivery of public education materials after it
has met the lead action level during the most recent six-month monitoring
period conducted pursuant to Section 611.356. Such a supplier must begin
public education anew in accordance with this Section if it subsequently
exceeds the lead action level during any six-month monitoring period.
7)
A CWS supplier may apply to the Agency, in writing, to use only the text
specified in Appendix F of this Part subsection (a)(1) of this Section in
lieu of the text in Appendix E of this Part subsections (a)(1) and (a)(2) of
this Section and to perform the tasks listed in subsections (c)(4) (b)(4) and
(c)(5) (b)(5) of this Section in lieu of the tasks in subsections (c)(2) (b)(2)
and (c)(3) (b)(3) of this Section if the following are true:
A)
The supplier is a facility, such as a prison or a hospital, where the
population served is not capable of or is prevented from making
improvements to plumbing or installing point of use treatment
devices; and
B)
The system provides water as part of the cost of services provided,
and it does not separately charge for water consumption.
8)
Reduced requirements for certain smaller CWS suppliers.
A)
A CWS supplier serving 3,300 or fewer people may omit the task
contained in subsection (c)(2)(D) of this Section. As long as it
distributes notices containing the information contained in
Appendix E of this Part to every household served by the system,
such a supplier may further limit its public education programs as
follows:
i)
A supplier serving 500 or fewer people may forego the task
contained in subsection (c)(2)(B) of this Section. Such a

105
system may limit the distribution of the public education
materials required under subsection (c)(2)(C) of this
Section to facilities and organizations served by the
supplier that are most likely to be visited regularly by
pregnant women and children, unless it is notified by the
Agency in writing that it must make a broader distribution.
ii)
If approved by the Agency by a SEP issued pursuant to
Section 611.110, a system serving 501 to 3,300 people may
omit the task in subsection (c)(2)(B) of this Section or limit
the distribution of the public education materials required
under subsection (c)(2)(C) of this Section to facilities and
organizations served by the system that are most likely to
be visited regularly by pregnant women and children.
B)
A CWS supplier serving 3,300 or fewer people that delivers public
education in accordance with subsection (c)(8)(A) of this Section
must repeat the required public education tasks at least once during
each calendar year in which the supplier exceeds the lead action
level.
8)
A CWS supplier that serves 3,300 or fewer people may limit certain
aspects of its public education programs as follows:
A)
With respect to the requirements of subsection (b)(2)(F) of this
Section, a supplier that serves 3,300 or fewer people must
implement at least one of the activities listed in that subsection.
B)
With respect to the requirements of subsection (b)(2)(B) of this
Section, a supplier that serves 3,300 or fewer people may limit the
distribution of the public education materials required under that
subsection to facilities and organizations that it serves which are
most likely to be visited regularly by pregnant women and
children.
C)
With respect to the requirements of subsection (b)(2)(E) of this
Section, the Agency may, by a SEP issued pursuant to Section
611.110, waive this requirement for a supplier that serves 3,300 or
fewer persons, as long as the supplier distributes notices to every
household that it serves.
dc)
Supplemental monitoring and notification of results. A supplier that fails to meet
the lead action level on the basis of tap samples collected in accordance with
Section 611.356 must offer to sample the tap water of any customer who requests
it. The supplier is not required to pay for collecting or analyzing the sample, nor
is the supplier required to collect and analyze the sample itself.

106
d)
Requirement for consumer notice of tap water monitoring results.
1)
Consumer notice requirement. A supplier must provide a notice of the
individual tap results from lead tap water monitoring carried out under the
requirements of Section 611.356 to the persons served by the water system
at the specific sampling site from which the sample was taken (e.g., the
occupants of the residence where the tap was tested).
2)
Timing of consumer notice. The supplier must provide the consumer
notice as soon as practical, but no later than 30 days after it learns of the
tap monitoring results.
3)
Content of consumer notice. The consumer notice must include the results
of lead tap water monitoring for the tap that was tested, an explanation of
the health effects of lead, a list of steps that consumers can take to reduce
exposure to lead in drinking water, and contact information for the water
utility. The notice must also provide the maximum contaminant level goal
and the action level for lead and the definitions for these two terms from
Section 611.883(c).
4)
Delivery of consumer notice. The consumer notice must be provided to
persons served at the tap that was tested, either by mail or by another
method approved by the Agency, by a SEP issued pursuant to Section
611.110. For example, upon approval by the Agency, a NTNCWS
supplier could post the results on a bulletin board in the facility to allow
users to review the information. The supplier must provide the notice to
customers at sample taps tested, including consumers who do not receive
water bills.
BOARD NOTE: Derived from 40 CFR 141.85 (2002)
(2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.356
Tap Water Monitoring for Lead and Copper
a)
Sample Sampling site location.
1)
Selecting a pool of targeted sampling sites.
A)
By the applicable date for commencement of monitoring under
subsection (d)(1) of this Section, each supplier must complete a
materials evaluation of its distribution system in order to identify a
pool of targeted sampling sites that meets the requirements of this
Section.

107
B)
The pool of targeted sampling sites must be sufficiently large to
ensure that the supplier can collect the number of lead and copper
tap samples required by subsection (c) of this Section.
C)
The supplier must select the sites for collection of first draw
samples from this pool of targeted sampling sites.
D)
The supplier must not select as sampling sites any faucets that have
point-of-use or point-of-entry treatment devices designed to
remove or capable of removing inorganic contaminants.
2)
Materials evaluation.
A)
A supplier must use the information on lead, copper, and
galvanized steel collected pursuant to 40 CFR 141.42(d) (special
monitoring for corrosivity characteristics) when conducting a
materials evaluation.
B)
When an evaluation of the information collected pursuant to 40
CFR 141.42(d) is insufficient to locate the requisite number of lead
and copper sampling sites that meet the targeting criteria in
subsection (a) of this Section, the supplier must review the
following sources of information in order to identify a sufficient
number of sampling sites:
i)
All plumbing codes, permits, and records in the files of the
building departments that indicate the plumbing materials
that are installed within publicly- and privately-owned
structures connected to the distribution system;
ii)
All inspections and records of the distribution system that
indicate the material composition of the service
connections which connect a structure to the distribution
system;
iii)
All existing water quality information, which includes the
results of all prior analyses of the system or individual
structures connected to the system, indicating locations that
may be particularly susceptible to high lead or copper
concentrations; and
iv)
The supplier must seek to collect such information where
possible in the course of its normal operations (e.g.,
checking service line materials when reading water meters
or performing maintenance activities).

108
3)
Tiers of sampling sites. Suppliers must categorize the sampling sites
within their pool according to the following tiers:
A)
CWS Tier 1 sampling sites. “CWS Tier 1 sampling sites” must
include the following single-family structures:
i)
Those that contain copper pipes with lead solder installed
after 1982 or which contain lead pipes; or
ii)
Those that are served by a lead service line.
BOARD NOTE: Subsection (a)(3)(A) was derived from segments
of 40 CFR 141.86(a)(3) (2003) (2007). This allows the pool of
CWS tier 1 sampling sites to consist exclusively of structures
served by lead service lines.
B)
CWS Tier 2 sampling sites. “CWS Tier 2 sampling sites” must
include the following buildings, including multiple-family
structures:
i)
Those that contain copper pipes with lead solder installed
after 1982 or contain lead pipes; or
ii)
Those that are served by a lead service line.
BOARD NOTE: Subsection (a)(3)(B) was derived from segments
of 40 CFR 141.86(a)(4) (2003) (2007). This allows the pool of
CWS tier 2 sampling sites to consist exclusively of structures
served by lead service lines.
C)
CWS Tier 3 sampling sites. “CWS Tier 3 sampling sites” must
include the following single-family structures: those that contain
copper pipes with lead solder installed before 1983.
BOARD NOTE: Subsection (a)(3)(C) was derived from segments
of 40 CFR 141.86(a)(5) (2003) (2007).
D)
NTNCWS Tier 1 sampling sites. “NTNCWS Tier 1 sampling
sites” must include the following buildings:
i)
Those that contain copper pipes with lead solder installed
after 1982 or which contain lead pipes; or
ii)
Those that are served by a lead service line.

109
BOARD NOTE: Subsection (a)(3)(D) was derived from segments
of 40 CFR 141.86(a)(6) (2003) (2007). This allows the pool of
NTNCWS tier 1 sampling sites to consist exclusively of buildings
served by lead service lines.
E)
Alternative NTNCWS sampling sites. “Alternative NTNCWS
sampling sites” must include the following buildings: those that
contain copper pipes with lead solder installed before 1983.
BOARD NOTE: Subsection (a)(3)(E) was derived from segments
of 40 CFR 141.86(a)(7) (2003) (2007).
4)
Selection of sampling sites. Suppliers must select sampling sites for their
sampling pool as follows:
A)
CWS Suppliers. CWS suppliers must use CWS tier 1 sampling
sites, except that the supplier may include CWS tier 2 or CWS tier
3 sampling sites in its sampling pool as follows:
i)
If multiple-family residences comprise at least 20 percent
of the structures served by a supplier, the supplier may use
CWS tier 2 sampling sites in its sampling pool; or
BOARD NOTE: Subsection (a)(4)(A)(i) was derived from
a segment of 40 CFR 141.86(a)(3)(ii) (2003) (2007).
ii)
If the CWS supplier has an insufficient number of CWS tier
1 sampling sites on its distribution system, the supplier may
use CWS tier 2 sampling sites in its sampling pool; or
BOARD NOTE: Subsection (a)(4)(A)(ii) was derived from
a segment of 40 CFR 141.86(a)(4) (2003)
(2007).
iii)
If the CWS supplier has an insufficient number of CWS tier
1 and CWS tier 2 sampling sites on its distribution system,
the supplier may complete its sampling pool with CWS tier
3 sampling sites.
BOARD NOTE: Subsection (a)(4)(A)(iii) was derived
from a segment of 40 CFR 141.86(a)(5) (2003)
(2007).
iv)
If the CWS supplier has an insufficient number of CWS tier
1 sampling sites, CWS tier 2 sampling sites, and CWS tier
3 sampling sites, the supplier must use those CWS tier 1
sampling sites, CWS tier 2 sampling sites, and CWS tier 3
sampling sites that it has and complete its sampling pool

110
with representative sites throughout its distribution system
for the balance of its sampling sites. For the purpose of this
subsection (a)(4)(A)(iv), a representative site is a site in
which the plumbing materials used at that site would be
commonly found at other sites served by the water system.
BOARD NOTE: Subsection (a)(4)(A)(iv) was derived
from segments of 40 CFR 141.86(a)(5) (2003) (2007).
B)
NTNCWS suppliers.
i)
An NTNCWS supplier must select NTNCWS tier 1
sampling sites for its sampling pool.
BOARD NOTE: Subsection (a)(4)(B)(i) was derived from
segments of 40 CFR 141.86(a)(6) (2003) (2007).
ii)
If the NTNCWS supplier has an insufficient number of
NTNCWS tier 1 sampling sites, the supplier may complete
its sampling pool with alternative NTNCWS sampling
sites.
BOARD NOTE: Subsection (a)(4)(B)(ii) was derived from
segments of 40 CFR 141.86(a)(7) (2003) (2007).
iii)
If the NTNCWS supplier has an insufficient number of
NTNCWS tier 1 sampling sites and NTNCWS alternative
sampling sites, the supplier must use representative sites
throughout its distribution system. For the purpose of this
subsection (a)(4)(B)(ii), a representative site is a site in
which the plumbing materials used at that site would be
commonly found at other sites served by the water system.
BOARD NOTE: Subsection (a)(4)(B)(iii) was derived
from segments of 40 CFR 141.86(a)(7) (2003)
(2007).
C)
Suppliers with lead service lines. Any supplier whose distribution
system contains lead service lines must draw samples during each
six-month monitoring period from sampling sites as follows:
i)
50 percent of the samples from sampling sites that contain
lead pipes or from sampling sites that have copper pipes
with lead solder; and
ii)
50 percent of those samples from sites served by a lead
service line.

111
iii)
A supplier that cannot identify a sufficient number of
sampling sites served by a lead service line must collect
first-draw samples from all of the sites identified as being
served by such lines.
BOARD NOTE: Subsection (a)(4)(C) was derived from segments
of 40 CFR 141.86(a)(8) (2003) (2007). This allows the pool of
sampling sites to consist exclusively of structures or buildings
served by lead service lines.
b)
Sample collection methods.
1)
All tap samples for lead and copper collected in accordance with this
Subpart G, with the exception of lead service line samples collected under
Section 611.354(c) and samples collected under subsection (b)(5) of this
Section, must be first-draw samples.
2)
First-draw tap samples.
A)
Each first-draw tap sample for lead and copper must be one liter in
volume and have stood motionless in the plumbing system of each
sampling site for at least six hours.
B)
First-draw samples from residential housing must be collected
from the cold water kitchen tap or bathroom sink tap.
C)
First-draw samples from a non-residential building must be one
liter in volume and must be collected at an interior tap from which
water is typically drawn for consumption.
D)
Non-first-draw samples collected in lieu of first-draw samples
pursuant to subsection (b)(5) of this Section must be one liter in
volume and must be collected at an interior tap from which water
is typically drawn for consumption.
E)
First-draw samples may be collected by the supplier or the supplier
may allow residents to collect first-draw samples after instructing
the residents of the sampling procedures specified in this
subsection (b).
i)
To avoid problems of residents handling nitric acid,
acidification of first-draw samples may be done up to 14
days after the sample is collected.
ii)
After acidification to resolubilize the metals, the sample

112
must stand in the original container for the time specified in
the approved USEPA method before the sample can be
analyzed.
F)
If a supplier allows residents to perform sampling under subsection
(b)(2)(D) of this Section, the supplier may not challenge the
accuracy of sampling results based on alleged errors in sample
collection.
3)
Service line samples.
A)
Each service line sample must be one liter in volume and have
stood motionless in the lead service line for at least six hours.
B)
Lead service line samples must be collected in one of the following
three ways:
i)
At the tap after flushing that volume of water calculated as
being between the tap and the lead service line based on the
interior diameter and length of the pipe between the tap and
the lead service line;
ii)
Tapping directly into the lead service line; or
iii)
If the sampling site is a single-family structure, allowing
the water to run until there is a significant change in
temperature that would be indicative of water that has been
standing in the lead service line.
4)
Follow-up first-draw tap samples.
A)
A supplier must collect each follow-up first-draw tap sample from
the same sampling site from which it collected the previous
samples.
B)
If, for any reason, the supplier cannot gain entry to a sampling site
in order to collect a follow-up tap sample, the supplier may collect
the follow-up tap sample from another sampling site in its
sampling pool, as long as the new site meets the same targeting
criteria and is within reasonable proximity of the original site.
5)
Substitute non-first-draw samples.
A)
A NTNCWS supplier or a CWS supplier that meets the criteria of
Sections 611.355(c)(7)(A) and (c)(7)(B) 611.355(b)(7)(A) and
(b)(7)(B), that does not have enough taps that can supply first-

113
draw samples, as defined in Section 611.102, may apply to the
Agency in writing to substitute non-first-draw samples by a SEP
granted under Section 611.110.
B)
A supplier approved to substitute non-first-draw samples must
collect as many first-draw samples from appropriate taps as
possible and identify sampling times and locations that would
likely result in the longest standing time for the remaining sites.
C)
The Agency may grant a SEP that waives the requirement for prior
Agency approval of non-first-draw sample sampling sites selected
by the system.
c)
Number of samples.
1)
Suppliers must collect at least one sample from the number of sites listed
in the first column of Table D of this Part (labelled “standard monitoring”)
during each six-month monitoring period specified in subsection (d) of
this Section.
2)
A supplier conducting reduced monitoring pursuant to subsection (d)(4) of
this Section must collect one sample from the number of sites specified in
the second column of Table D of this Part (labelled “reduced monitoring”)
during each reduced monitoring period specified in subsection (d)(4) of
this Section. Such reduced monitoring sites must be representative of the
sites required for standard monitoring. A supplier whose system has
fewer than five drinking water taps that can be used for human
consumption and which can meet the sampling site criteria of subsection
(a) of this Section to reach the required number of sampling sites listed in
this subsection (c), must collect multiple samples from individual taps. To
accomplish this, the supplier must collect at least one sample from each
tap, then it must collect additional samples from those same taps on
different days during the monitoring period, in order to collect a total
number of samples that meets the required number of sampling sites.
Alternatively, the Agency must, by a SEP issued pursuant to Section
611.110, allow a supplier whose system has fewer than five drinking water
taps to collect a number of samples that is fewer than the number of sites
specified in this subsection (c) if it determines that 100 percent of all taps
that can be used for human consumption are sampled and that the reduced
number of samples will produce the same results as would the collection
of multiple samples from some taps. Any Agency approval of a reduction
of the minimum number of samples must be based on a request from the
supplier or on on-site verification by the Agency. The Agency may, by a
SEP issued pursuant to Section 611.110, specify sampling locations when
a system is conducting reduced monitoring.

114
d)
Timing of monitoring.
1)
Initial tap sampling. The first six-month monitoring period for small,
medium-sized and large system suppliers must begin on the dates
specified in Table E of this Part.
A)
All large system suppliers must monitor during each of two
consecutive six-month periods.
B)
All small- and medium-sized system suppliers must monitor during
each consecutive six-month monitoring period until the following
is true:
i)
The supplier exceeds the lead action level or the copper
action level and is therefore required to implement the
corrosion control treatment requirements under Section
611.351, in which case the supplier must continue
monitoring in accordance with subsection (d)(2) of this
Section; or
ii)
The supplier meets the lead action level and the copper
action level during each of two consecutive six-month
monitoring periods, in which case the supplier may reduce
monitoring in accordance with subsection (d)(4) of this
Section.
2)
Monitoring after installation of corrosion control and source water
treatment.
A)
Any large system supplier that installs optimal corrosion control
treatment pursuant to Section 611.351(d)(4) must have monitored
during each of two consecutive six-month monitoring periods
before January 1, 1998.
B)
Any small- or medium-sized system supplier that installs optimal
corrosion control treatment pursuant to Section 611.351(e)(5) must
monitor during each of two consecutive six-month monitoring
periods before 36 months after the Agency approves optimal
corrosion control treatment, as specified in Section 611.351(e)(6).
C)
Any supplier that installs source water treatment pursuant to
Section 611.353(a)(3) must monitor during each of two
consecutive six-month monitoring periods before 36 months after
completion of step 2, as specified in Section 611.353(a)(4).
3)
Monitoring after the Agency specification of water quality parameter

115
values for optimal corrosion control. After the Agency specifies the
values for water quality control parameters pursuant to Section 611.352(f),
the supplier must monitor during each subsequent six-month monitoring
period, with the first six-month monitoring period to begin on the date the
Agency specifies the optimal values.
4)
Reduced monitoring.
A)
Reduction to annual for small- and medium-sized system suppliers
meeting the lead and copper action levels. A small- or medium-
sized system supplier that meets the lead and copper action levels
during each of two consecutive six-month monitoring periods may
reduce the number of samples in accordance with subsection (c) of
this Section, and reduce the frequency of sampling to once per
year. A small- or medium-sized system supplier that collects
fewer than five samples as specified in subsection (c) of this
Section and which meets the lead and copper action levels during
each of two consecutive six-month monitoring periods may reduce
its frequency of sampling to once per year. In no case can the
supplier reduce the number of samples required below the
minimum of one sample per available tap. This reduced sampling
may only begin during the calendar year immediately following
the end of the second consecutive six-month monitoring period.
B)
SEP allowing reduction to annual for suppliers maintaining water
quality control parameters.
i)
Any supplier that meets the lead action level and which
maintains the range of values for the water quality control
parameters reflecting optimal corrosion control treatment
specified by the Agency under Section 611.352(f) during
each of two consecutive six-month monitoring periods may
reduce the frequency of monitoring to once per year and
the number of lead and copper samples to that specified by
subsection (c) of this Section if it receives written approval
from the Agency in the form of a SEP granted pursuant to
Section 611.110. This reduced sampling may only begin
during the calendar year immediately following the end of
the second consecutive six-month monitoring period.
ii)
The Agency must review monitoring, treatment, and other
relevant information submitted by the water system in
accordance with Section 611.360, and must notify the
system in writing by a SEP granted pursuant to Sections
611.110 when it determines the system is eligible to reduce
its monitoring frequency to once every three years pursuant

116
to this subsection (d)(4).
iii)
The Agency must review, and where appropriate, revise its
determination under subsection (d)(4)(B)(i) of this Section
when the supplier submits new monitoring or treatment
data, or when other data relevant to the number and
frequency of tap sampling becomes available to the
Agency.
C)
Reduction to triennial for small- and medium-sized system
suppliers.
i)
Small- and medium-sized system suppliers meeting lead
and copper action levels. A small- or medium-sized system
supplier that meets the lead action level and which meets
the lead and copper action levels during three consecutive
years of monitoring may reduce the frequency of
monitoring for lead and copper from annually to once every
three years.
ii)
SEP for suppliers meeting optimal corrosion control
treatment. Any supplier that maintains the range of values
for the water quality control parameters reflecting optimal
corrosion control treatment specified by the Agency under
Section 611.352(f) during three consecutive years of
monitoring may reduce its monitoring frequency from
annual to once every three years if it receives written
approval from the Agency in the form of a SEP granted
pursuant to Section 611.110. Samples collected once every
three years must be collected no later than every third
calendar year.
iii)
The Agency must review, and where appropriate, revise its
determination under subsection (d)(4)(C)(ii) of this Section
when the supplier submits new monitoring or treatment
data, or when other data relevant to the number and
frequency of tap sampling becomes available to the
Agency.
D)
Sampling at a reduced frequency. A supplier that reduces the
number and frequency of sampling must collect these samples
from representative sites included in the pool of targeted sampling
sites identified in subsection (a) of this Section, preferentially
selecting those sampling sites from the highest tier first. Suppliers
sampling annually or less frequently must conduct the lead and
copper tap sampling during the months of June, July, August, or

117
September, unless the Agency has approved a different sampling
period in accordance with subsection (d)(4)(D)(i) of this Section.
i)
The Agency may grant a SEP pursuant to Section 611.110
that approves a different period for conducting the lead and
copper tap sampling for systems collecting a reduced
number of samples. Such a period must be no longer than
four consecutive months and must represent a time of
normal operation where the highest levels of lead are most
likely to occur. For a NTNCWS supplier that does not
operate during the months of June through September and
for which the period of normal operation where the highest
levels of lead are most likely to occur is not known, the
Agency must designate a period that represents a time of
normal operation for the system. This reduced sampling
may only begin during the period approved or designated
by the Agency in the calendar year immediately following
the end of the second consecutive six-month monitoring
period for systems initiating annual monitoring and during
the three-year period following the end of the third
consecutive calendar year of annual monitoring for a
supplier initiating triennial monitoring.
ii)
A supplier monitoring annually that has been collecting
samples during the months of June through September and
which receives Agency approval to alter its sample
collection period under subsection (d)(4)(D)(i) of this
Section must collect its next round of samples during a
time period that ends no later than 21 months after the
previous round of sampling. A supplier monitoring once
every three years that has been collecting samples during
the months of June through September and which receives
Agency approval to alter the sampling collection period as
provided in subsection (d)(4)(D)(i) of this Section must
collect its next round of samples during a time period that
ends no later than 45 months after the previous round of
sampling. Subsequent rounds of sampling must be
collected annually or once every three years, as required by
this Section. A small system supplier with a waiver
granted pursuant to subsection (g) of this Section that has
been collecting samples during the months of June through
September and which receives Agency approval to alter its
sample collection period under subsection (d)(4)(D)(i) of
this Section must collect its next round of samples before
the end of the nine-year compliance cycle (as that term is
defined in Section 611.101).

118
E)
Any water system that demonstrates for two consecutive six-month
monitoring periods that the tap water lead level computed under
Section 611.350(c)(3) is less than or equal to 0.005 mg/ℓ and that
the tap water copper level computed under Section 611.350(c)(3)
is less than or equal to 0.65 mg/ℓ may reduce the number of
samples in accordance with subsection (c) of this Section and
reduce the frequency of sampling to once every three calendar
years.
F)
Resumption of standard monitoring.
i)
Small- or medium-sized suppliers exceeding lead or copper
action level. A small- or medium-sized system supplier
subject to reduced monitoring that exceeds the lead action
level or the copper action level must resume sampling in
accordance subsection (d)(3) of this Section and collect the
number of samples specified for standard monitoring under
subsection (c) of this Section. Such a supplier must also
conduct water quality parameter monitoring in accordance
with Section 611.357 (b), (c), or (d) (as appropriate) during
the six-month monitoring period in which it exceeded the
action level. Any such supplier may resume annual
monitoring for lead and copper at the tap at the reduced
number of sites specified in subsection (c) of this Section
after it has completed two subsequent consecutive six-
month rounds of monitoring that meet the criteria of
subsection (d)(4)(A) of this Section. Any such supplier
may resume monitoring once every three years for lead and
copper at the reduced number of sites after it demonstrates
through subsequent rounds of monitoring that it meets the
criteria of either subsection (d)(4)(C) or (d)(4)(E) of this
Section.
ii)
Suppliers failing to operate within water quality control
parameters. Any supplier subject to reduced monitoring
frequency that fails to meet the lead action level during any
four-month monitoring period or that fails to operate within
the range of values for the water quality control parameters
specified pursuant to Section 611.352(f) for more than nine
days in any six-month period specified in Section
611.357(d) must conduct tap water sampling for lead and
copper at the frequency specified in subsection (d)(3) of
this Section, must collect the number of samples specified
for standard monitoring under subsection (c) of this
Section, and must resume monitoring for water quality

119
parameters within the distribution system in accordance
with Section 611.357(d). This standard tap water sampling
must begin no later than the six-month period beginning
January 1 of the calendar year following the lead action
level exceedance or water quality parameter excursion. A
supplier may resume reduced monitoring for lead and
copper at the tap and for water quality parameters within
the distribution system only if it fulfills the conditions set
forth in subsection (d)(4)(H) of this Section.
BOARD NOTE: The Board moved the material from the last
sentence of 40 CFR 141.86(d)(4)(vi)(B) and 40 CFR
141.86(d)(4)(vi)(B)(
1
) through (d)(4)(vi)(B)(
3
) (2007) to
subsections (d)(4)(H) and (d)(4)(H)(i) through (d)(4)(H)(iii), since
Illinois Administrative Code codification requirements allow
subsections only to four indent levels.
G)
Any water supplier subject to a reduced monitoring frequency
under subsection (d)(4) of this Section that either adds a new
source of water or changes any water treatment must inform notify
the Agency in writing in accordance with Section 611.360(a)(3) of
any upcoming long-term change in treatment or addition of a new
source as described in that Section. The Agency must review and
approve the addition of a new source or long-term change in water
treatment before it is implemented by the supplier. The Agency
may, by a SEP granted pursuant to Section 611.110, require the
system to resume sampling in accordance with subsection (d)(3) of
this Section and collect the number of samples specified for
standard monitoring under subsection (c) of this Section or take
other appropriate steps such as increased water quality parameter
monitoring or re-evaluation of its corrosion control treatment given
the potentially different water quality considerations.
H)
A supplier required under subsection (d)(4)(F) of this Section to
resume monitoring in accordance with Section 611.357(d) may
resume reduced monitoring for lead and copper at the tap and for
water quality parameters within the distribution system under the
following conditions:
i)
The supplier may resume annual monitoring for lead and
copper at the tap at the reduced number of sites specified in
subsection (c) of this Section after it has completed two
subsequent six-month rounds of monitoring that meet the
criteria of subsection (d)(4)(B) of this Section and the
supplier has received written approval from the Agency by
a SEP pursuant to Section 611.110 that it is appropriate to

120
resume reduced monitoring on an annual frequency. This
sampling must begin during the calendar year immediately
following the end of the second consecutive six-month
monitoring period.
ii)
The supplier may resume monitoring for lead and copper
once every three years at the tap at the reduced number of
sites after it demonstrates through subsequent rounds of
monitoring that it meets the criteria of either subsection
(d)(4)(C) or (d)(4)(E) of this Section and the system has
received a SEP under Section 611.110 from the Agency
that it is appropriate to resume monitoring once every three
years.
iii)
The supplier may reduce the number of water quality
parameter tap water samples required in accordance with
Section 611.357(e)(1) and the frequency with which it
collects such samples in accordance with Section
611.357(e)(2). Such a system may not resume monitoring
once every three years for water quality parameters at the
tap until it demonstrates, in accordance with the
requirements of Section 611.357(e)(2), that it has re-
qualified for monitoring once every three years.
BOARD NOTE: Subsections (d)(4)(H) and (d)(4)(H)(i) through
(d)(4)(H)(iii) are derived from the last sentence of 40 CFR
141.86(d)(4)(vi)(B) and 40 CFR 141.86(d)(4)(vi)(B)(
1
) through
(d)(4)(vi)(B)(
3
) (2003) (2007), since Illinois Administrative Code
codification requirements allow only four indent levels of
subsections.
e)
Additional monitoring. The results of any monitoring conducted in addition to
the minimum requirements of this Section must be considered by the supplier and
the Agency in making any determinations (i.e., calculating the 90th percentile
lead action level or the copper level) under this Subpart G.
f)
Invalidation of lead or copper tap water samples. A sample invalidated under this
subsection does not count toward determining lead or copper 90th percentile
levels under Section 611.350(c)(3) or toward meeting the minimum monitoring
requirements of subsection (c) of this Section.
1)
The Agency must invalidate a lead or copper tap water sample if it
determines that one of the following conditions exists:
A)
The laboratory establishes that improper sample analysis caused
erroneous results;

121
B)
The sample was taken from a site that did not meet the site
selection criteria of this Section;
C)
The sample container was damaged in transit; or
D)
There is substantial reason to believe that the sample was subject
to tampering.
2)
The supplier must report the results of all samples to the Agency and all
supporting documentation for samples the supplier believes should be
invalidated.
3)
To invalidate a sample under subsection (f)(1) of this Section, the decision
and the rationale for the decision must be documented in writing. The
Agency may not invalidate a sample solely on the grounds that a follow-
up sample result is higher or lower than that of the original sample.
4)
The water supplier must collect replacement samples for any samples
invalidated under this Section if, after the invalidation of one or more
samples, the supplier has too few samples to meet the minimum
requirements of subsection (c) of this Section. Any such replacement
samples must be taken as soon as possible, but no later than 20 days after
the date the Agency invalidates the sample or by the end of the applicable
monitoring period, whichever occurs later. Replacement samples taken
after the end of the applicable monitoring period must not also be used to
meet the monitoring requirements of a subsequent monitoring period. The
replacement samples must be taken at the same locations as the
invalidated samples or, if that is not possible, at locations other than those
already used for sampling during the monitoring period.
g)
Monitoring waivers for small system suppliers. Any small system supplier that
meets the criteria of this subsection (g) may apply to the Agency to reduce the
frequency of monitoring for lead and copper under this Section to once every nine
years (i.e., a “full waiver”) if it meets all of the materials criteria specified in
subsection (g)(1) of this Section and all of the monitoring criteria specified in
subsection (g)(2) of this Section. Any small system supplier that meets the
criteria in subsections (g)(1) and (g)(2) of this Section only for lead, or only for
copper, may apply to the State for a waiver to reduce the frequency of tap water
monitoring to once every nine years for that contaminant only (i.e., a “partial
waiver”).
1)
Materials criteria. The supplier must demonstrate that its distribution
system and service lines and all drinking water supply plumbing,
including plumbing conveying drinking water within all residences and
buildings connected to the system, are free of lead-containing materials or

122
copper-containing materials, as those terms are defined in this subsection
(g)(1), as follows:
A)
Lead. To qualify for a full waiver, or a waiver of the tap water
monitoring requirements for lead (i.e., a “lead waiver”), the water
supplier must provide certification and supporting documentation
to the Agency that the system is free of all lead-containing
materials, as follows:
i)
It contains no plastic pipes that contain lead plasticizers, or
plastic service lines that contain lead plasticizers; and
ii)
It is free of lead service lines, lead pipes, lead soldered pipe
joints, and leaded brass or bronze alloy fittings and
fixtures, unless such fittings and fixtures meet the
specifications of NSF Standard 61, section 9, incorporated by
reference in Section 611.102.
BOARD NOTE: Corresponding 40 CFR 141.86(g)(1)(i)(B)
specifies “any standard established pursuant to 42 USC
300g-6(e) (SDWA section 1417(e)).” USEPA has stated
that the NSF standard is that standard. See 62 Fed. Reg.
44684 (Aug. 22, 1997).
B)
Copper. To qualify for a full waiver, or a waiver of the tap water
monitoring requirements for copper (i.e., a “copper waiver”), the
water supplier must provide certification and supporting
documentation to the Agency that the system contains no copper
pipes or copper service lines.
2)
Monitoring criteria for waiver issuance. The supplier must have completed
at least one six-month round of standard tap water monitoring for lead and
copper at sites approved by the Agency and from the number of sites
required by subsection (c) of this Section and demonstrate that the 90th
percentile levels for any and all rounds of monitoring conducted since the
system became free of all lead-containing or copper-containing materials,
as appropriate, meet the following criteria:
A)
Lead levels. To qualify for a full waiver, or a lead waiver, the
supplier must demonstrate that the 90th percentile lead level does
not exceed 0.005 mg/ℓ.
B)
Copper levels. To qualify for a full waiver, or a copper waiver, the
supplier must demonstrate that the 90th percentile copper level
does not exceed 0.65 mg/ℓ.

123
3)
State approval of waiver application. The Agency must notify the supplier
of its waiver determination by a SEP issued pursuant to Section 611.110,
in writing, setting forth the basis of its decision and any condition of the
waiver. As a condition of the waiver, the Agency may require the supplier
to perform specific activities (e.g., limited monitoring, periodic outreach
to customers to remind them to avoid installation of materials that might
void the waiver) to avoid the risk of lead or copper concentration of
concern in tap water. The small system supplier must continue monitoring
for lead and copper at the tap as required by subsections (d)(1) through
(d)(4) of this Section, as appropriate, until it receives written notification
from the Agency that the waiver has been approved.
4)
Monitoring frequency for suppliers with waivers.
A)
A supplier with a full waiver must conduct tap water monitoring
for lead and copper in accordance with subsection (d)(4)(D) of this
Section at the reduced number of sampling sites identified in
subsection (c) of this Section at least once every nine years and
provide the materials certification specified in subsection (g)(1) of
this Section for both lead and copper to the Agency along with the
monitoring results. Samples collected every nine years must be
collected no later than every ninth calendar year.
B)
A supplier with a partial waiver must conduct tap water monitoring
for the waived contaminant in accordance with subsection
(d)(4)(D) of this Section at the reduced number of sampling sites
specified in subsection (c) of this Section at least once every nine
years and provide the materials certification specified in subsection
(g)(1) of this Section pertaining to the waived contaminant along
with the monitoring results. Such a supplier also must continue to
monitor for the non-waived contaminant in accordance with
requirements of subsections (d)(1) through (d)(4) of this Section,
as appropriate.
C)
If a
Any supplier with a full or partial waiver adds a new source of
water or changes any water treatment, the supplier must notify the
Agency in writing in accordance with Section 611.360(a)(3) of any
upcoming long-term change in treatment or addition of a new
source, as described in that Section. The Agency must review and
approve the addition of a new source or long-term change in water
treatment before it is implemented by the supplier. The Agency
has the authority to require the supplier to add or modify waiver
conditions (e.g., require recertification that the supplier’s system is
free of lead-containing or copper-containing materials, require
additional rounds of monitoring), if it deems such modifications
are necessary to address treatment or source water changes at the

124
system.
D)
If a supplier with a full or partial waiver becomes aware that it is
no longer free of lead-containing or copper-containing materials,
as appropriate (e.g., as a result of new construction or repairs), the
supplier must notify the Agency in writing no later than 60 days
after becoming aware of such a change.
5)
Continued eligibility. If the supplier continues to satisfy the requirements
of subsection (g)(4) of this Section, the waiver will be renewed
automatically, unless any of the conditions listed in subsection (g)(5)(A)
through (g)(5)(C) of this Section occur. A supplier whose waiver has
been revoked may re-apply for a waiver at such time as it again meets the
appropriate materials and monitoring criteria of subsections (g)(1) and
(g)(2) of this Section.
A)
A supplier with a full waiver or a lead waiver no longer satisfies
the materials criteria of subsection (g)(1)(A) of this Section or has
a 90th percentile lead level greater than 0.005 mg/ℓ.
B)
A supplier with a full waiver or a copper waiver no longer satisfies
the materials criteria of subsection (g)(1)(B) of this Section or has
a 90th percentile copper level greater than 0.65 mg/ℓ.
C)
The State notifies the supplier, in writing, that the waiver has been
revoked, setting forth the basis of its decision.
6)
Requirements following waiver revocation. A supplier whose full or
partial waiver has been revoked by the Agency is subject to the corrosion
control treatment and lead and copper tap water monitoring requirements,
as follows:
A)
If the supplier exceeds the lead or copper action level, the supplier
must implement corrosion control treatment in accordance with the
deadlines specified in Section 611.351(e), and any other applicable
requirements of this Subpart G.
B)
If the supplier meets both the lead and the copper action level, the
supplier must monitor for lead and copper at the tap no less
frequently than once every three years using the reduced number
of sample
sampling sites specified in subsection (c) of this Section.
7)
Pre-existing waivers. Small system supplier waivers approved by the
Agency in writing prior to April 11, 2000 must remain in effect under the
following conditions:

125
A)
If the supplier has demonstrated that it is both free of lead-
containing and copper-containing materials, as required by
subsection (g)(1) of this Section and that its 90th percentile lead
levels and 90th percentile copper levels meet the criteria of
subsection (g)(2) of this Section, the waiver remains in effect so
long as the supplier continues to meet the waiver eligibility criteria
of subsection (g)(5) of this Section. The first round of tap water
monitoring conducted pursuant to subsection (g)(4) of this Section
must be completed no later than nine years after the last time the
supplier monitored for lead and copper at the tap.
B)
If the supplier has met the materials criteria of subsection (g)(1) of
this Section but has not met the monitoring criteria of subsection
(g)(2) of this Section, the supplier must conduct a round of
monitoring for lead and copper at the tap demonstrating that it met
the criteria of subsection (g)(2) of this Section no later than
September 30, 2000. Thereafter, the waiver must remain in effect
as long as the supplier meets the continued eligibility criteria of
subsection (g)(5) of this Section. The first round of tap water
monitoring conducted pursuant to subsection (g)(4) of this Section
must be completed no later than nine years after the round of
monitoring conducted pursuant to subsection (g)(2) of this Section.
BOARD NOTE: Derived from 40 CFR 141.86 (2003) (2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.357
Monitoring for Water Quality Parameters
All large system suppliers, and all small- and medium-sized system suppliers that exceed the
lead action level or the copper action level, must monitor water quality parameters in addition to
lead and copper in accordance with this Section. The requirements of this Section are
summarized in Table G of this Part.
a)
General Requirements.
1)
Sample collection methods.
A)
Use of tap samples. The totality of all tap samples collected by a
supplier must be representative of water quality throughout the
distribution system taking into account the number of persons
served, the different sources of water, the different treatment
methods employed by the supplier, and seasonal variability.
Although a supplier may conveniently conduct tap sampling for
water quality parameters at sites used for coliform sampling

126
performed pursuant to Subpart L of this Part, it is not required to
do so, and a supplier is not required to perform tap sampling
pursuant to this Section at taps targeted for lead and copper
sampling under Section 611.356(a).
B)
Use of entry point samples. Each supplier must collect samples at
entry points to the distribution system from locations
representative of each source after treatment. If a supplier draws
water from more than one source and the sources are combined
before distribution, the supplier must sample at an entry point to
the distribution system during periods of normal operating
conditions (i.e., when water is representative of all sources being
used).
2)
Number of samples.
A)
Tap samples. Each supplier must collect two tap samples for
applicable water quality parameters during each six-month
monitoring period specified under subsections (b) through (e) of
this Section from the number of sites indicated in the first column
of Table E of this Part.
B)
Entry point samples.
i)
Initial monitoring. Except as provided in subsection (c)(3)
of this Section, each supplier must collect two samples for
each applicable water quality parameter at each entry point
to the distribution system during each six-month
monitoring period specified in subsection (b) of this
Section.
ii)
Subsequent monitoring. Each supplier must collect one
sample for each applicable water quality parameter at each
entry point to the distribution system during each six-
month monitoring period specified in subsections (c)
through (e) of this Section.
b)
Initial Sampling.
1)
Large systems. Each large system supplier must measure the applicable
water quality parameters specified in subsection (b)(3) of this Section at
taps and at each entry point to the distribution system during each six-
month monitoring period specified in Section 611.356(d)(1).
2)
Small- and medium-sized systems. Each small- and medium-sized system
supplier must measure the applicable water quality parameters specified in
subsection (b)(3) of this Section at the locations specified in this

127
subsection during each six-month monitoring period specified in Section
611.356(d)(1) during which the supplier exceeds the lead action level or
the copper action level.
3)
Water quality parameters.
A)
pH;
B)
Alkalinity;
C)
Orthophosphate, when an inhibitor containing a phosphate
compound is used;
D)
Silica, when an inhibitor containing a silicate compound is used;
E)
Calcium;
F)
Conductivity; and
G)
Water temperature.
c)
Monitoring after installation of corrosion control.
1)
Large systems. Each large system supplier that installs optimal corrosion
control treatment pursuant to Section 611.351(d)(4) must measure the
water quality parameters at the locations and frequencies specified in
subsections (c)(4) and (c)(5) of this Section during each six-month
monitoring period specified in Section 611.356(d)(2)(A).
2)
Small- and medium-sized systems. Each small- or medium-sized system
that installs optimal corrosion control treatment pursuant to Section
611.351(e)(5) must measure the water quality parameters at the locations
and frequencies specified in subsections (c)(4) and (c)(5) of this Section
during each six-month monitoring period specified in Section
611.356(d)(2)(B) in which the supplier exceeds the lead action level or the
copper action level.
3)
Any groundwater system can limit entry point sampling described in
subsection (c)(2) of this Section to those entry points that are
representative of water quality and treatment conditions throughout the
system. If water from untreated groundwater sources mixes with water
from treated groundwater sources, the system must monitor for water
quality parameters both at representative entry points receiving treatment
and representative entry points receiving no treatment. Prior to the start of
any monitoring under this subsection, the system must provide to the
Agency written information identifying the selected entry points and

128
documentation, including information on seasonal variability, sufficient to
demonstrate that the sites are representative of water quality and treatment
conditions throughout the system.
4)
Tap water samples, two samples at each tap for each of the following
water quality parameters:
A)
pH;
B)
Alkalinity;
C)
Orthophosphate, when an inhibitor containing a phosphate
compound is used;
D)
Silica, when an inhibitor containing a silicate compound is used;
and
E)
Calcium, when calcium carbonate stabilization is used as part of
corrosion control.
5)
Entry point samples, except as provided in subsection (c)(3) of this
Section, one sample at each entry point to the distribution system every
two weeks (bi-weekly) for each of the following water quality parameters:
A)
pH;
B)
When alkalinity is adjusted as part of optimal corrosion control, a
reading of the dosage rate of the chemical used to adjust alkalinity,
and the alkalinity concentration; and
C)
When a corrosion inhibitor is used as part of optimal corrosion
control, a reading of the dosage rate of the inhibitor used, and the
concentration of orthophosphate or silica (whichever is
applicable).
d)
Monitoring after the Agency specifies water quality parameter values for optimal
corrosion control.
1)
Large system suppliers. After the Agency has specified the values for
applicable water quality control parameters reflecting optimal corrosion
control treatment pursuant to Section 611.352(f), each large system
supplier must measure the applicable water quality parameters in
accordance with subsection (c) of this Section and determine compliance
with the requirements of Section 611.352(g) every six months with the
first six-month period to begin on the date either January 1 or July 1,
whichever comes first, after the State Agency specifies the optimal values

129
under Section 611.352(f).
2)
Small- and medium-sized system suppliers. Each small- or medium-sized
system supplier must conduct such monitoring during each six-month
monitoring period specified in this subsection (d) in which the supplier
exceeds the lead action level or the copper action level. For any such
small and medium-size system that is subject to a reduced monitoring
frequency pursuant to Section 611.356(d)(4) at the time of the action level
exceedence, the end start of the applicable six-month monitoring period
under this subsection (d) must coincide with the end start of the applicable
monitoring period under Section 611.356(d)(4).
3)
Compliance with Agency-designated optimal water quality parameter
values must be determined as specified under Section 611.352(g).
e)
Reduced monitoring.
1)
Reduction in tap monitoring. A supplier that has maintained the range of
values for the water quality parameters reflecting optimal corrosion
control treatment during each of two consecutive six-month monitoring
periods under subsection (d) of this Section must continue monitoring at
the entry points to the distribution system as specified in subsection (c)(4)
of this Section. Such a supplier may collect two samples from each tap for
applicable water quality parameters from the reduced number of sites
indicated in the second column of Table E of this Part during each
subsequent six-month monitoring period.
2)
Reduction in monitoring frequency.
A)
Staged reductions in monitoring frequency.
i)
Annual monitoring. A supplier that maintains the range of
values for the water quality parameters reflecting optimal
corrosion control treatment specified pursuant to Section
611.352(f) during three consecutive years of monitoring
may reduce the frequency with which it collects the number
of tap samples for applicable water quality parameters
specified in subsection (e)(1) of this Section from every six
months to annually. This reduced sampling may only
begin during the calendar year immediately following the
end of the monitoring period in which the third consecutive
year of six-month monitoring occurs.
ii)
Triennial monitoring. A supplier that maintains the range
of values for the water quality parameters reflecting
optimal corrosion control treatment specified pursuant to

130
Section 611.352(f) during three consecutive years of annual
monitoring under subsection (e)(2)(A)(i) of this Section
may reduce the frequency with which it collects the number
of tap samples for applicable water quality parameters
specified in subsection (e)(1) of this Section from annually
to once every three years. This reduced sampling may only
begin no later than the third calendar year following the
end of the monitoring period in which the third consecutive
year of monitoring occurs.
B)
A water supplier may reduce the frequency with which it collects
tap samples for applicable water quality parameters specified in
subsection (e)(1) of this Section to every three years if it
demonstrates the following that it has fulfilled the conditions set
forth in subsections (e)(2)(B)(i) through (e)(2)(B)(iii) of this
Section during two consecutive monitoring periods:, subject to the
limitation of subsection (e)(2)(B)(iv) of this Section.
i)
That The supplier must demonstrate that its tap water lead
level at the 90th percentile is less than or equal to the PQL
for lead specified in Section 611.359(a)(1)(B);
ii)
That The supplier must demonstrate that its tap water
copper level at the 90th percentile is less than or equal to
0.65 mg/ℓ for copper in Section 611.350(c)(2); and
iii)
That The supplier must demonstrate that it also has
maintained the range of values for the water quality
parameters reflecting optimal corrosion control treatment
specified by the Agency under Section 611.352(f).
iv)
Monitoring conducted every three years must be done no
later than every third calendar year.
3)
A supplier that conducts sampling annually or every three years must
collect these samples evenly throughout the calendar year so as to reflect
seasonal variability.
4)
Any supplier subject to a reduced monitoring frequency pursuant to this
subsection that fails to operate at or above the minimum value or within
the range of values for the water quality parameters specified pursuant to
Section 611.352(f) for more than nine days in any six-month period
specified in Section 611.352(g) must resume tap water sampling in
accordance with the number and frequency requirements of subsection (d)
of this Section. Such a system may resume annual monitoring for water
quality parameters at the tap at the reduced number of sites specified in

131
subsection (e)(1) of this Section after it has completed two subsequent
consecutive six-month rounds of monitoring that meet the criteria of that
subsection or may resume monitoring once every three years for water
quality parameters at the tap at the reduced number of sites after it
demonstrates through subsequent rounds of monitoring that it meets the
criteria of either subsection (e)(2)(A) or (e)(2)(B) of this Section.
f)
Additional monitoring by suppliers. The results of any monitoring conducted in
addition to the minimum requirements of this Section must be considered by the
supplier and the Agency in making any determinations (i.e., determining
concentrations of water quality parameters) under this Section or Section 611.352.
BOARD NOTE: Derived from 40 CFR 141.87 (2002) (2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.358
Monitoring for Lead and Copper in Source Water
a)
Sample location, collection methods, and number of samples.
1)
A supplier that fails to meet the lead action level or the copper action level
on the basis of tap samples collected in accordance with Section 611.356
must collect lead and copper source water samples in accordance with the
following requirements regarding sample location, number of samples,
and collection methods:
A)
A groundwater supplier must take a minimum of one sample at
every entry point to the distribution system that is representative of
each well after treatment (hereafter called a sampling point). The
supplier must take one sample at the same sampling point unless
conditions make another sampling point more representative of
each source or treatment plant.
B)
A surface water supplier must take a minimum of one sample at
every entry point to the distribution system after any application of
treatment or in the distribution system at a point that is
representative of each source after treatment (hereafter called a
sampling point). The system must take each sample at the same
sampling point unless conditions make another sampling point
more representative of each source or treatment plant.
BOARD NOTE: For the purposes of this subsection (a)(1)(B),
surface water systems include systems with a combination of
surface and ground sources.

132
C)
If a supplier draws water from more than one source and the
sources are combined before distribution, the supplier must sample
at an entry point to the distribution system during periods of
normal operating conditions (i.e., when water is representative of
all sources being used).
D)
The Agency may, by a SEP issued pursuant to Section 611.110,
reduce the total number of samples that must be analyzed by
allowing the use of compositing. Compositing of samples must be
done by certified laboratory personnel. Composite samples from a
maximum of five samples are allowed, provided that if the lead
concentration in the composite sample is greater than or equal to
0.001 mg/ℓ or the copper concentration is greater than or equal to
0.160 mg/ℓ, then the supplier must do either of the following:
i)
The supplier must take and analyze a follow-up sample
within 14 days at each sampling point included in the
composite; or
ii)
If duplicates of or sufficient quantities from the original
samples from each sampling point used in the composite
are available, the supplier may use these instead of
resampling.
2)
SEP requiring an additional sample.
A)
When the Agency determines that the results of sampling indicate
an exceedence of the lead or copper MPC established under
Section 611.353(b)(4), it must, by a SEP issued pursuant to Section
611.110, require the supplier to collect one additional sample as
soon as possible after the initial sample at the same sampling point,
but no later than two weeks after the supplier took the initial
sample.
B)
If a supplier takes an Agency-required confirmation sample for
lead or copper, the supplier must average the results obtained from
the initial sample with the results obtained from the confirmation
sample in determining compliance with the Agency-specified lead
and copper MPCs.
i)
Any analytical result below the MDL must be considered
as zero for the purposes of averaging.
ii)
Any value above the MDL but below the PQL must either
be considered as the measured value or be considered one-
half the PQL.

133
b)
Monitoring frequency after system exceeds tap water action level. A supplier that
exceeds the lead action level or the copper action level in tap sampling must
collect one source water sample from each entry point to the distribution system
within no later than six months after the exceedence. end of the monitoring period
during which the lead or copper action level was exceeded. For monitoring
periods that are annual or less frequent, the end of the monitoring period is
September 30 of the calendar year in which the sampling occurs, or if the Agency
has established an alternate monitoring period by a SEP issued pursuant to
Section 611.110, the last day of that period.
c)
Monitoring frequency after installation of source water treatment. A supplier that
installs source water treatment pursuant to Section 611.353(a)(3) must collect an
additional source water sample from each entry point to the distribution system
during each of two consecutive six-month monitoring periods on or before 36
months after completion of step 2, as specified in Section 611.353(a)(4).
d)
Monitoring frequency after the Agency has specified the lead and copper MPCs
or has determined that source water treatment is not needed.
1)
A supplier must monitor at the frequency specified by subsection
(d)(1)(A) or (d)(1)(B) of this Section where the Agency has specified the
MPCs pursuant to Section 611.353(b)(4) or has determined that the
supplier is not required to install source water treatment pursuant to
Section 611.353(b)(2).
A)
GWS suppliers.
i)
A GWS supplier required to sample by subsection (d)(1) of
this Section must collect samples once during the three-
year compliance period (as that term is defined in Section
611.101) during which the Agency makes its determination
pursuant to Section 611.353(b)(4) or 611.353(b)(2).
ii)
A GWS supplier required to sample by subsection (d)(1) of
this Section must collect samples once during each
subsequent compliance period.
iii)
Triennial samples must be collected every third calendar
year.
B)
A SWS or mixed system supplier must collect samples annually
once during each calendar year
, the first annual monitoring period
to begin on the date on
during the year in which the Agency makes
its determination pursuant to Section 611.353(b)(4) or
611.353(b)(2).

134
2)
A supplier is not required to conduct source water sampling for lead or
copper if the supplier meets the action level for the specific contaminant in
all tap water samples collected during the entire source water sampling
period applicable under subsection (d)(1)(A) or (d)(1)(B) of this Section.
e)
Reduced monitoring frequency.
1)
A GWS supplier may reduce the monitoring frequency for lead and copper
in source water to once during each nine-year compliance cycle (as that
term is defined in Section 611.101), provided that the samples are
collected no later than every ninth calendar year, and only if the supplier
meets one of the following criteria:
A)
The supplier demonstrates that finished drinking water entering the
distribution system has been maintained below the maximum
permissible lead and copper concentrations specified by the State
in Section 611.353(b)(4) during at least three consecutive
compliance periods under subsection (d)(1) of this Section; or
B)
The Agency has determined, by a SEP issued pursuant to Section
611.110, that source water treatment is not needed and the system
demonstrates that, during at least three consecutive compliance
periods in which sampling was conducted under subsection (d)(1)
of this Section, the concentration of lead in source water was less
than or equal to 0.005 mg/ℓ and the concentration of copper in
source water was less than or equal to 0.65 mg/ℓ.
2)
A SWS or mixed system supplier may reduce the monitoring frequency in
subsection (d)(1) of this Section to once during each nine-year compliance
cycle (as that term is defined in Section 611.101),
provided that the
samples are collected no later than every ninth calendar year, and only if
the supplier meets one of the following criteria:
A)
The supplier demonstrates that finished drinking water entering the
distribution system has been maintained below the maximum
permissible lead and copper concentrations specified by the
Agency under Section 611.353(b)(4) for at least three consecutive
years; or
B)
The Agency has determined, by a SEP issued pursuant to Section
611.110, that source water treatment is not needed and the supplier
demonstrates that, during at least three consecutive years, the
concentration of lead in source water was less than or equal to
0.005 mg/ℓ and the concentration of copper in source water was
less than or equal to 0.65 mg/ℓ.

135
3)
A supplier that uses a new source of water is not eligible for reduced
monitoring for lead or copper until it demonstrates by samples collected
from the new source during three consecutive monitoring periods, of the
appropriate duration provided by subsection (d)(1) of this Section, that
lead or copper concentrations are below the MPC as specified by the
Agency pursuant to Section 611.353(a)(4).
BOARD NOTE: Derived from 40 CFR 141.88 (2003) (2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.359
Analytical Methods
Analyses for lead, copper, pH, conductivity, calcium, alkalinity, orthophosphate, silica, and
temperature must be conducted using the methods set forth in Section 611.611(a).
a)
Analyses for lead and copper performed for the purposes of compliance with this
Subpart G must only be conducted by laboratories that have been certified by
USEPA or the Agency. To obtain certification to conduct analyses for lead and
copper, laboratories must do the following:
1)
Analyze performance evaluation samples that include lead and copper
provided by USEPA Environmental Monitoring and Support Laboratory
or equivalent samples provided by the Agency; and
2)
Achieve quantitative acceptance limits as follows:
A)
For lead: ±30 percent of the actual amount in the performance
evaluation sample when the actual amount is greater than or equal
to 0.005 mg/ℓ (the PQL for lead is 0.005 mg/ℓ);
B)
For copper: ±10 percent of the actual amount in the performance
evaluation sample when the actual amount is greater than or equal
to 0.050 mg/ℓ (the PQL for copper is 0.050 mg/ℓ);
C)
Achieve the method detection limit (MDL) for lead (0.001 mg/ℓ,
as defined in Section 611.350(a)) according to the procedures in 35
Ill. Adm. Code 186 and appendix B to 40 CFR 136: “Definition
and Procedure for the Determination of the Method Detection
Limit—Revision 1.11” (2005), incorporated by reference in
Section 611.102(c). This need only be accomplished if the
laboratory will be processing source water composite samples
under Section 611.358(a)(1)(C) 611.358(a)(1)(D); and

136
D)
Be currently certified by USEPA or the Agency to perform
analyses to the specifications described in subsection (a)(2) (a)(1)
of this Section.
BOARD NOTE: Subsection (a) is derived from 40 CFR 141.89(a) and (a)(1)
(2005) (2007), as amended at 72 Fed. Reg. 57782 (October 10, 2007).
b)
The Agency must, by a SEP issued pursuant to Section 611.110, allow a supplier
to use previously collected monitoring data for the purposes of monitoring under
this Subpart G if the data were collected and analyzed in accordance with the
requirements of this Subpart G.
BOARD NOTE: Subsection (b) is derived from 40 CFR 141.89(a)(2) (2005)
(2007).
c)
Reporting lead and copper levels.
1)
All lead and copper levels greater than or equal to the lead and copper
PQL (Pb
0.005 mg/ℓ and Cu
0.050 mg/ℓ) must be reported as
measured.
2)
All lead and copper levels measured less than the PQL and greater than
the MDL (0.005 mg/ℓ > Pb > MDL and 0.050 mg/ℓ > Cu > MDL) must be
either reported as measured or as one-half the PQL set forth in subsection
(a) of this Section (i.e., reported as 0.0025 mg/ℓ for lead or 0.025 mg/ℓ for
copper).
3)
All lead and copper levels below the lead and copper MDL (MDL > Pb)
must be reported as zero.
BOARD NOTE: Subsection (c) is derived from 40 CFR 141.89(a)(3) and (a)(4)
(2005)
(2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.360
Reporting
A supplier must report all of the following information to the Agency in accordance with this
Section.
a)
Reporting for tap, lead, and copper, and water quality parameter monitoring.
1)
Except as provided in subsection (a)(1)(viii) of this Section, a supplier
must report the following information for all samples specified in Section
611.356 and for all water quality parameter samples specified in Section
611.357 within ten days of the end of each applicable sampling period

137
specified in Sections 611.356 and 611.357 (i.e., every six months,
annually, every three years, or every nine years). For a monitoring period
with a duration less than six months, the end of the monitoring period is
the last date on which samples can be collected during that period, as
specified in Sections 611.356 and 611.357.
A)
The results of all tap samples for lead and copper, including the
location of each site and the criteria under Section 611.356(a)(3)
through (a)(7) under which the site was selected for the supplier’s
sampling pool;
B)
Documentation for each tap water lead or copper sample for which
the water supplier requests invalidation pursuant to Section
611.356(f)(2);
C)
This subsection (a)(1)(C) corresponds with 40 CFR
141.90(a)(1)(iii), a provision that USEPA removed and marked
“reserved.” This statement preserves structural parity with the
federal rules;
D)
The 90th percentile lead and copper concentrations measured from
among all lead and copper tap samples collected during each
sampling period (calculated in accordance with Section
611.350(c)(3)), unless the Agency calculates the system’s 90th
percentile lead and copper levels under subsection (h) of this
Section;
E)
With the exception of initial tap sampling conducted pursuant to
Section 611.356(d)(1), the supplier must designate any site that
was not sampled during previous sampling periods, and include an
explanation of why sampling sites have changed;
F)
The results of all tap samples for pH, and where applicable,
alkalinity, calcium, conductivity, temperature, and orthophosphate
or silica collected pursuant to Section 611.357(b) through (e);
G)
The results of all samples collected at entry points for applicable
water quality parameters pursuant to Section 611.357(b) through
(e).
H)
A water supplier must report the results of all water quality
parameter samples collected under Section 611.357(c) through (f)
during each six-month monitoring period specified in Section
611.357(d) within the first 10 days following the end of the
monitoring period, unless the Agency has specified, by a SEP
granted pursuant to Section 611.110, a more frequent reporting

138
requirement.
2)
For a NTNCWS supplier, or a CWS supplier meeting the criteria of
Sections 611.355(c)(7)(A) and (c)(7)(B) 611.355(b)(7)(A) and (b)(7)(B),
that does not have enough taps which can provide first-draw samples, the
supplier must do either of the following:
A)
Provide written documentation to the Agency that identifies
standing times and locations for enough non-first-draw samples to
make up its sampling pool under Section 611.356(b)(5) by the start
of the first applicable monitoring period under Section 611.356(d)
that commenced after April 11, 2000, unless the Agency has
waived prior Agency approval of non-first-draw sample sampling
sites selected by the supplier pursuant to Section 611.356(b)(5); or
B)
If the Agency has waived prior approval of non-first-draw sample
sampling sites selected by the supplier, identify, in writing, each
site that did not meet the six-hour minimum standing time and the
length of standing time for that particular substitute sample
collected pursuant to Section 611.356(b)(5) and include this
information with the lead and copper tap sample results required to
be submitted pursuant to subsection (a)(1)(A) of this Section.
3)
No later than 60 days after At a time specified by the Agency, by a SEP
issued pursuant to Section 611.110, or if no specific time is designated by
the Agency, then as early as possible prior to the addition of a new source
or any change in water treatment, unless the Agency requires earlier
notification, a water supplier deemed to have optimized corrosion control
under Section 611.351(b)(3), a water supplier subject to reduced
monitoring pursuant to Section 611.356(d)(4), or a water supplier subject
to a monitoring waiver pursuant to Section 611.356(g), must send
submit
written documentation to the Agency describing the change or addition.
In those instances where prior Agency approval of the treatment change or
new source is not required, USEPA has stated that it encourages water
systems to provide the notification to the Agency beforehand to minimize
the risk the treatment change or new source will adversely affect optimal
corrosion control.
4)
Any small system supplier applying for a monitoring waiver under Section
611.356(g), or subject to a waiver granted pursuant to Section
611.356(g)(3), must provide the following information to the Agency in
writing by the specified deadline:
A)
By the start of the first applicable monitoring period in Section
611.356(d), any small water system supplier applying for a
monitoring waiver must provide the documentation required to

139
demonstrate that it meets the waiver criteria of Sections
611.356(g)(1) and (g)(2).
B)
No later than nine years after the monitoring previously conducted
pursuant to Section 611.356(g)(2) or Section 611.356(g)(4)(A),
each small system supplier desiring to maintain its monitoring
waiver must provide the information required by Sections
611.356(g)(4)(A) and (g)(4)(B).
C)
No later than 60 days after it becomes aware that it is no longer
free of lead-containing or copper-containing material, as
appropriate, each small system supplier with a monitoring waiver
must provide written notification to the Agency, setting forth the
circumstances resulting in the lead-containing or copper-
containing materials being introduced into the system and what
corrective action, if any, the supplier plans to remove these
materials.
D)
By October 10, 2000, any small system supplier with a waiver
granted prior to April 11, 2000 and that had not previously met the
requirements of Section 611.356(g)(2) must have provided the
information required by that subsection.
5)
Each GWS supplier that limits water quality parameter monitoring to a
subset of entry points under Section 611.357(c)(3) must provide, by the
commencement of such monitoring, written correspondence to the Agency
that identifies the selected entry points and includes information sufficient
to demonstrate that the sites are representative of water quality and
treatment conditions throughout the system.
b)
Reporting for source water monitoring.
1)
A supplier must report the sampling results for all source water samples
collected in accordance with Section 611.358 within ten days of the end of
each source water sampling period (i.e., annually, per compliance period,
per compliance cycle) specified in Section 611.358.
2)
With the exception of the first round of source water sampling conducted
pursuant to Section 611.358(b), a supplier must specify any site that was
not sampled during previous sampling periods, and include an explanation
of why the sampling point has changed.
c)
Reporting for corrosion control treatment. By the applicable dates under Section
611.351, a supplier must report the following information:
1)
For a supplier demonstrating that it has already optimized corrosion

140
control, the information required by Section 611.352(b)(2) or (b)(3).
2)
For a supplier required to optimize corrosion control, its recommendation
regarding optimal corrosion control treatment pursuant to Section
611.352(a).
3)
For a supplier required to evaluate the effectiveness of corrosion control
treatments pursuant to Section 611.352(c), the information required by
Section 611.352(c).
4)
For a supplier required to install optimal corrosion control approved by
the Agency pursuant to Section 611.352(d), a copy of the Agency permit
letter, which acts as certification that the supplier has completed installing
the permitted treatment.
d)
Reporting for source water treatment. On or before the applicable dates in
Section 611.353, a supplier must provide the following information to the
Agency:
1)
If required by Section 611.353(b)(1), its recommendation regarding source
water treatment; or
2)
For suppliers required to install source water treatment pursuant to Section
611.353(b)(2), a copy of the Agency permit letter, which acts as
certification that the supplier has completed installing the treatment
approved by the Agency within 24 months after the Agency approved the
treatment.
e)
Reporting for lead service line replacement. A supplier must report the following
information to the Agency to demonstrate compliance with the requirements of
Section 611.354:
1)
Within 12 months after No later than 12 months after the end of a
monitoring period in which a supplier exceeds the lead action level in
sampling referred to in Section 611.354(a), the supplier must report
submit each of the following to the Agency in writing:
A)
A demonstration that it has conducted a materials evaluation,
including the The material evaluation conducted as required by
Section 611.356(a);
B)
Identify the initial number of lead service lines in its distribution
system at the time the supplier exceeds the lead action level; and
C)
Provide the Agency with the supplier’s schedule for annually
replacing at least seven percent of the initial number of lead

141
service lines in its distribution system.
2)
Within No later than 12 months after the end of a monitoring period in
which a supplier exceeds the lead action level in sampling referred to in
Section 611.354(a), and every 12 months thereafter, the supplier must
demonstrate to the Agency in writing that the supplier has done either of
the following:
A)
Replaced That the supplier has replaced, in the previous 12
months, at least seven percent of the initial number of lead service
lines in its distribution system (or any greater number of lines
specified by the Agency pursuant to Section 611.354(e)); or
B)
Conducted That the supplier has conducted sampling that
demonstrates that the lead concentration in all service line samples
from individual lines, taken pursuant to Section 611.356(b)(3), is
less than or equal to 0.015 mg/ℓ. This demonstration requires that
the total number of lines that the supplier has replaced, combined
with the total number that meet the criteria of Section 611.354(c),
must equal at least seven percent of the initial number of lead lines
identified pursuant to subsection (e)(1) of this Section (or the
percentage specified by the Agency pursuant to Section
611.354(e)).
C)
Where the supplier makes a demonstration under subsection
(e)(2)(B) of this Section, the total number of lines that the supplier
has replaced, combined with the total number that meet the criteria
of Section 611.354(b), must equal at least seven percent of the
initial number of lead lines identified pursuant to subsection (a) of
this Section (or the percentage specified by the Agency pursuant to
Section 611.354(e)).
3)
The annual letter submitted to the Agency pursuant to subsection (e)(2) of
this Section must contain the following information:
A)
The number of lead service lines originally scheduled to be
replaced during the previous year of the supplier’s replacement
schedule;
B)
The number and location of each lead service line actually
replaced during the previous year of the supplier’s replacement
schedule; and
C)
If measured, the water lead concentration from each lead service
line sampled pursuant to Section 611.356(b)(3) and the location of
each lead service line sampled, the sampling method used, and the

142
date of sampling.
4)
Any supplier that collects lead service line samples following partial lead
service line replacement required by Section 611.354 must report the
results to the Agency within the first ten days of the month following the
month in which the supplier receives the laboratory results, or as specified
by the Agency. The Agency may, by a SEP granted pursuant to Section
611.110, eliminate this requirement to report these monitoring results. A
supplier must also report any additional information as specified by the
Agency, and in a time and manner prescribed by the Agency, to verify that
all partial lead service line replacement activities have taken place.
f)
Reporting for public education program.
1)
Any water supplier that is subject to the public education requirements in
Section 611.355 must, within ten days after the end of each period in
which the supplier is required to perform public education tasks in
accordance with Section 611.355(c) 611.355(b), send written
documentation to the Agency that contains the following:
A)
A demonstration that the supplier has delivered the public
education materials that meet the content requirements in Sections
611.355(a) and (b) and the delivery requirements in Section
611.355(c) 611.355(b); and
B)
A list of all the newspapers, radio stations, television stations, and
facilities and organizations to which the supplier delivered public
education materials during the period in which the supplier was
required to perform public education tasks.
2)
Unless required by the Agency, by a SEP issued pursuant to Section
611.110, a supplier that previously has submitted the information required
by subsection (f)(1)(B) of this Section need not resubmit the information
required by subsection (f)(1)(B) of this Section, as long as there have been
no changes in the distribution list and the supplier certifies that the public
education materials were distributed to the same list submitted previously.
3)
No later than three months following the end of the monitoring period,
each supplier must mail a sample copy of the consumer notification of tap
results to the Agency, along with a certification that the notification has
been distributed in a manner consistent with the requirements of Section
611.355(d).
g)
Reporting of additional monitoring data. Any supplier that collects sampling data
in addition to that required by this Subpart G must report the results of that
sampling to the Agency within the first ten days following the end of the

143
applicable sampling periods specified by Sections 611.356 through 611.358
during which the samples are collected.
h)
Reporting of 90th percentile lead and copper concentrations where the Agency
calculates a system’s 90th percentile concentrations. A water supplier is not
required to report the 90th percentile lead and copper concentrations measured
from among all lead and copper tap water samples collected during each
monitoring period, as required by subsection (a)(1)(D) of this Section if the
following is true:
1)
The Agency has previously notified the water supplier that it will calculate
the water system’s 90th percentile lead and copper concentrations, based
on the lead and copper tap results submitted pursuant to subsection
(h)(2)(A) of this Section, and has specified a date before the end of the
applicable monitoring period by which the supplier must provide the
results of lead and copper tap water samples;
2)
The supplier has provided the following information to the Agency by the
date specified in subsection (h)(1) of this Section:
A)
The results of all tap samples for lead and copper including the
location of each site and the criteria under Section 611.356(a)(3),
(a)(4), (a)(5), (a)(6), or (a)(7) under which the site was selected for
the system’s sampling pool, pursuant to subsection (a)(1)(A) of
this Section; and
B)
An identification of sampling sites utilized during the current
monitoring period that were not sampled during previous
monitoring periods, and an explanation why sampling sites have
changed; and
3)
The Agency has provided the results of the 90th percentile lead and
copper calculations, in writing, to the water supplier before the end of the
monitoring period.
BOARD NOTE: Derived from 40 CFR 141.90 (2003)
(2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART I: DISINFECTANT RESIDUALS, DISINFECTION BYPRODUCTS, AND
DISINFECTION BYPRODUCT PRECURSORS
Section 611.381
Analytical Requirements
a)
A supplier must use only the analytical methods specified in this Section or their

144
equivalents as alternative methods approved by the Agency pursuant to Section
611.480 to demonstrate compliance with the requirements of this Subpart I and
with the requirements of Subparts W and Y of this Part.
b)
Disinfection byproducts (DBPs).
1)
A supplier must measure disinfection byproducts (DBPs) by the appropriate
of the following methods:
A)
TTHM:
i)
By purge and trap, gas chromatography, electrolytic
conductivity detector, and photoionization detector:
USEPA Organic Methods, Method 502.2. If TTHMs are
the only analytes being measured in the sample, then a
photoionization detector is not required.
ii)
By purge and trap, gas chromatography, mass
spectrometer: USEPA Organic Methods, Method 524.2.
iii)
By liquid-liquid extraction, gas chromatography, electron
capture detector: USEPA Organic Methods, Method 551.1.
B)
HAA5:
i)
By liquid-liquid extraction (diazomethane), gas
chromatography, electron capture detector: Standard
Methods, 19th or 21st ed., Method 6251 B.
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg.
388), USEPA amended the entry for HAA5 by liquid-liquid
extraction (diazomethane), gas chromatography, electron
capture detector, in the table at corresponding 40 CFR
141.131(b)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 6251 B (as
approved in 1994). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 6251 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 6251 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
ii)
By solid phase extractor (acidic methanol), gas

145
chromatography, electron capture detector: USEPA
Organic Methods, Method 552.1.
iii)
By liquid-liquid extraction (acidic methanol), gas
chromatography, electron capture detector: USEPA
Organic Methods, Method 552.2 or 552.3.
C)
Bromate:
i)
By ion chromatography: USEPA Organic and Inorganic
Methods, Method 300.1.
ii)
By ion chromatography and post-column reaction: USEPA
OGWDW Methods, Method 317.0, rev 2.0, or 326.0, rev.
1.0.
iii)
By inductively-coupled plasma/mass spectrometer
inductively coupled plasma-mass spectrometer: USEPA
Organic and Inorganic Methods, Method 321.8.
BOARD NOTE: Ion chromatography and post column reaction or
inductively-coupled plasma/mass spectrometry inductively
coupled plasma-mass spectrometry must be used for monitoring of
bromate for purposes of demonstrating eligibility of reduced
monitoring, as prescribed in Section 611.382(b)(3)(B). For
inductively-coupled plasma/mass spectrometry inductively
coupled plasma-mass spectrometry, samples must be preserved at
the time of sampling with 50 mg ethylenediamine (EDA) per liter
of sample, and the samples must be analyzed within 28 days.
D)
Chlorite:
i)
By amperometric titration: Standard Methods, 19th or 21st
ed., Method 4500-ClO
2
E.
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg.
388), USEPA amended the entry for chlorite by
amperometric titration, in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 4500-ClO
2
E (as approved in 2000). The Board has instead cited to the
21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard
Methods), since the version of Method 4500-ClO
2
that
appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 4500-ClO
2

146
E from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
ii)
By spectrophotometry: USEPA OGWDW Methods,
Method 327.0, rev. 1.1.
iii)
By ion chromatography: USEPA Environmental Inorganic
Methods, Method 300.0; USEPA Organic and Inorganic
Methods, Method 300.1; USEPA OGWDW Methods,
Method 317.0, rev. 2.0, or 326.0, rev. 1.0; or ASTM
Method D6581-00.
BOARD NOTE: Amperometric titration or spectrophotometry
may be used for routine daily monitoring of chlorite at the entrance
to the distribution system, as prescribed in Section
611.382(b)(2)(A)(i). Ion chromatography must be used for routine
monthly monitoring of chlorite and additional monitoring of
chlorite in the distribution system, as prescribed in Section
611.382(b)(2)(A)(ii) and (b)(2)(B).
2)
Analyses under this Section for DBPs must be conducted by laboratories
that have received certification by USEPA or the Agency except as
specified under subsection (b)(3) of this Section. To receive certification
to conduct analyses for the DBP contaminants listed in Sections 611.312
and 611.381 and Subparts W and Y of this Part, the laboratory must fulfill
the requirements of subsections (b)(2)(A), (b)(2)(C), and (b)(2)(D) of this
Section.
A)
The laboratory must analyze performance evaluation (PE) samples
that are acceptable to USEPA or the Agency at least once during
each consecutive 12-month period by each method for which the
laboratory desires certification.
B)
This subsection corresponds with 40 CFR 141.131(b)(2)(ii), which
has expired by its own terms. This statement maintains structural
consistency with the corresponding federal rule.
C)
The laboratory must achieve quantitative results on the PE sample
analyses that are within the acceptance limits set forth in
subsections (b)(2)(C)(i) through (b)(2)(B)(xi) of this Section,
subject to the conditions of subsections (b)(2)(C)(xii) and
(b)(2)(C)(xiii) of this Section:
i)
Chloroform (a THM): ±20% of true value;

147
ii)
Bromodichloromethane (a THM): ±20% of true value;
iii)
Dibromochloromethane (a THM): ±20% of true value;
iv)
Bromoform (a THM): ±20% of true value;
v)
Monochloroacetic Acid (an HAA5): ±40% of true value;
vi)
Dichloroacetic Acid (an HAA5): ±40% of true value;
vii)
Trichloroacetic Acid (an HAA5): ±40% of true value;
viii)
Monobromoacetic Acid (an HAA5): ±40% of true value;
ix)
Dibromoacetic Acid (an HAA5): ±40% of true value;
x)
Chlorite: ±30% of true value; and
xi)
Bromate: ±30% of true value.
xii)
The laboratory must meet all four of the individual THM
acceptance limits set forth in subsections (b)(2)(B)(i)
through (b)(2)(B)(iv) of this Section in order to
successfully pass a PE sample for TTHM.
xiii)
The laboratory must meet the acceptance limits for four out
of the five HAA5 compounds set forth in subsections
(b)(2)(B)(v) through (b)(2)(B)(ix) of this Section in order
to successfully pass a PE sample for HAA5.
D)
The laboratory must report quantitative data for concentrations at
least as low as the minimum reporting levels (MRLs) listed in
subsections (b)(2)(D)(i) through (b)(2)(D)(xi) of this Section,
subject to the limitations of subsections (b)(2)(D)(xii) and
(b)(2)(D)(xiii) of this Section, for all DBP samples analyzed for
compliance with Sections 611.312 and 611.385 and Subparts W
and Y of this Part:
i)
Chloroform (a THM): 0.0010 mg/ℓ;
ii)
Bromodichloromethane (a THM): 0.0010 mg/ℓ;
iii)
Dibromochloromethane (a THM): 0.0010 mg/ℓ;
iv)
Bromoform (a THM): 0.0010 mg/ℓ;

148
v)
Monochloroacetic Acid (an HAA5): 0.0020 mg/ℓ;
vi)
Dichloroacetic Acid (an HAA5): 0.0010 mg/ℓ;
vii)
Trichloroacetic Acid (an HAA5): 0.0010 mg/ℓ;
viii)
Monobromoacetic Acid (an HAA5): 0.0010 mg/ℓ;
ix)
Dibromoacetic Acid (an HAA5): 0.0010 mg/ℓ;
x)
Chlorite: 0.020 mg/ℓ, applicable to monitoring as required
by Section 611.382(b)(2)(A)(ii) and (b)(2)(B); and
xi)
Bromate: 0.0050, or 0.0010 mg/ℓ if the laboratory uses
USEPA OGWDW Methods, Method 317.0, rev. 2.0, or
326.0 or USEPA Organic and Inorganic Methods, Method
321.8.
xii)
The calibration curve must encompass the regulatory MRL
concentration. Data may be reported for concentrations
lower than the regulatory MRL as long as the precision and
accuracy criteria are met by analyzing an MRL check
standard at the lowest reporting limit chosen by the
laboratory. The laboratory must verify the accuracy of the
calibration curve at the MRL concentration by analyzing an
MRL check standard with a concentration less than or
equal to 110% of the MRL with each batch of samples.
The measured concentration for the MRL check standard
must be ±50% of the expected value, if any field sample in
the batch has a concentration less than five times the
regulatory MRL. Method requirements to analyze higher
concentration check standards and meet tighter acceptance
criteria for them must be met in addition to the MRL check
standard requirement.
xiii)
When adding the individual trihalomethane or haloacetic
acid concentrations, for the compounds listed in
subsections (b)(2)(D)(v) through (b)(2)(D)(ix) of this
Section, to calculate the TTHM or HAA5 concentrations,
respectively, a zero is used for any analytical result that is
less than the MRL concentration for that DBP, unless
otherwise specified by the Agency.
3)
A party approved by USEPA or the Agency must measure daily chlorite
samples at the entrance to the distribution system.

149
c)
Disinfectant residuals.
1)
A supplier must measure residual disinfectant concentrations for free
chlorine, combined chlorine (chloramines), and chlorine dioxide by the
appropriate of the methods listed in subsections (c)(1)(A) through
(c)(1)(D) of this Section, subject to the provisions of subsection (c)(1)(E)
of this Section:
A)
Free Chlorine:
i)
Amperometric titration using Standard Methods, 19th,
20th, or 21st ed., Method 4500-Cl D, or ASTM Method
1253-86, 1253-96, or 1253-03;
ii)
DPD ferrous titration using Standard Methods, 19th, 20th,
or 21st ed., Method 4500-Cl F;
iii)
DPD colorimetric using Standard Methods, 19th, 20th, or
21st ed., Method 4500-Cl G; or
iv)
Syringaldazine (FACTS) using Standard Methods, 19th,
20th, or 21st ed., Method 4500-Cl H.
B)
Combined Chlorine:
i)
Amperometric titration using Standard Methods, 19th,
20th, or 21st ed., Method 4500-Cl D, or ASTM Method
1253-86, 1253-96, or 1253-03;
ii)
DPD ferrous titration using Standard Methods, 19th, 20th,
or 21st ed., Method 4500-Cl F; or
iii)
DPD colorimetric using Standard Methods, 19th, 20th, or
21st ed., Method 4500-Cl G.
C)
Total Chlorine:
i)
Amperometric titration using Standard Methods, 19th,
20th, or 21st ed., Method 4500-Cl D, or ASTM Method
1253-86, 1253-96, or 1253-03;
ii)
Low-level amperometric titration using Standard Methods,
19th, 20th, or 21st ed., Method 4500-Cl E;
iii)
DPD ferrous titration using Standard Methods, 19th, 20th,

150
or 21st ed., Method 4500-Cl F;
iv)
DPD colorimetric using Standard Methods, 19th, 20th, or
21st ed., Method 4500-Cl G; or
v)
Iodometric electrode using Standard Methods, 19th, 20th,
or 21st ed., Method 4500-Cl I.
D)
Chlorine Dioxide:
i)
DPD using Standard Methods, 19th, 20th, or 21st ed.,
Method 4500-ClO
2
D;
ii)
Amperometric Method II using Standard Methods, 19th,
20th, or 21st ed., Method 4500-ClO
2
E; or
iii)
Lissamine Green spectrophotometric using USEPA
OGWDW Method 327.0 (rev. 1.1).
E)
The methods listed are approved for measuring the specified
disinfectant residual. The supplier may measure free chlorine or
total chlorine for demonstrating compliance with the chlorine
MRDL and combined chlorine, or total chlorine may be measured
for demonstrating compliance with the chloramine MRDL.
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg. 388), USEPA
amended the entries for free chlorine, combined chlorine, and chlorine
dioxide in the table at corresponding 40 CFR 141.23(k)(1) to allow the use
of Standard Methods Online (at www.standardmethods.org), Method
4500-Cl D, E, F, G, H, or I or Method 4500-ClO
2
E (as approved in 2000).
The Board has instead cited to the 21st edition of Standard Methods for
the Examination of Water and Wastewater (the printed version of
Standard Methods), since the versions of Method 4500-Cl and Method
4500-ClO
2
that appear in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 4500-Cl D, E, F, G, H, or
I or Method 4500-ClO
2
E from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
2)
Test strips.
A)
ITS Method D99-003.
BOARD NOTE: USEPA added ITS Method D99-003 as an
approved alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).

151
B)
If approved by the Agency, a supplier may also measure residual
disinfectant concentrations for chlorine, chloramines, and chlorine
dioxide by using DPD colorimetric test kits.
3)
A party approved by USEPA or the Agency must measure residual
disinfectant concentration.
d)
A supplier required to analyze parameters not included in subsections (b) and (c) of
this Section must use the methods listed below. A party approved by USEPA or the
Agency must measure the following parameters:
1)
Alkalinity. All methods allowed in Section 611.611(a)(21) for measuring
alkalinity.
2)
Bromide:
A)
USEPA Inorganic Methods, Method 300.0;
B)
USEPA Organic and Inorganic Methods, Method 300.1;
C)
USEPA OGWDW Methods, Method 317.0 (rev. 2.0) or Method
326.0 (rev. 1.0); or
D)
ASTM Method D6581-00.
3)
Total Organic Carbon (TOC), by any of the methods listed in subsection
(d)(3)(A)(i), (d)(3)(A)(ii), (d)(3)(A)(iii), or (d)(3)(B) of this Section,
subject to the limitations of subsection (d)(3)(C) of this Section:
A)
Standard Methods, 19th, 20th, or 21st ed., using one of the
following methods:
i)
Method 5310 B (High-Temperature Combustion Method);
ii)
Method 5310 C (Persulfate-Ultraviolet or
Heated-Persulfate Oxidation Method); or
iii)
Method 5310 D (Wet-Oxidation Method).
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg. 388),
USEPA amended the entries for total organic carbon, high-
temperature combustion, persulfate-ultraviolet or heated
persulfate, and wet oxidation at corresponding 40 CFR
141.131(d)(3) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 5310 B, C, or D (as approved

152
in 2000). The Board has instead cited to the 21st edition of
Standard Methods for the Examination of Water and Wastewater
(the printed version of Standard Methods), since the version of
Method 5310 B, C, or D that appears in that printed volume is that
cited by USEPA as acceptable for use. USEPA later added
Method 5310 B, C, or D from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
B)
USEPA NERL Method 415.3 (rev. 1.1).
C)
Inorganic carbon must be removed from the samples prior to
analysis. TOC samples may not be filtered prior to analysis. TOC
samples must be acidified at the time of sample collection to
achieve pH less than or equal to 2 with minimal addition of the
acid specified in the method or by the instrument manufacturer.
Acidified TOC samples must be analyzed within 28 days.
4)
Specific Ultraviolet Absorbance (SUVA). SUVA is equal to the UV
absorption at 254 nm (UV
254
) (measured in m
-1
) divided by the dissolved
organic carbon (DOC) concentration (measured as mg/ℓ). In order to
determine SUVA, it is necessary to separately measure UV
254
and DOC.
When determining SUVA, a supplier must use the methods stipulated in
subsection (d)(4)(A) of this Section to measure DOC and the method
stipulated in subsection (d)(4)(B) of this Section to measure UV
254
. SUVA
must be determined on water prior to the addition of disinfectants/oxidants
by the supplier. DOC and UV
254
samples used to determine a SUVA value
must be taken at the same time and at the same location.
A)
Dissolved Organic Carbon (DOC). Standard Methods, 19th ed.,
20th ed., or 21st ed., Method 5310 B (High-Temperature
Combustion Method), Method 5310 C (Persulfate-Ultraviolet or
Heated-Persulfate Oxidation Method), or Method 5310 D
(Wet-Oxidation Method) or USEPA NERL Method 415.3 (rev. 1.1).
Prior to analysis, DOC samples must be filtered through the 0.45
μm
pore-diameter filter as soon as practical after sampling, not to exceed
48 hours. After filtration, DOC samples must be acidified to
achieve pH less than or equal to 2 with minimal addition of the
acid specified in the method or by the instrument manufacturer.
Acidified DOC samples must be analyzed within 28 days after
sample collection. Inorganic carbon must be removed from the
samples prior to analysis. Water passed through the filter prior to
filtration of the sample must serve as the filtered blank. This filtered
blank must be analyzed using procedures identical to those used for
analysis of the samples and must meet the following standards:

153
DOC less than 0.5 mg/ℓ.; and
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg. 388),
USEPA amended the entries for specific ultraviolet absorbance-
dissolved organic carbon at corresponding 40 CFR
141.131(d)(4)(i) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 5310 B, C, or D (as approved
in 2000). The Board has instead cited to the 21st edition of
Standard Methods for the Examination of Water and Wastewater
(the printed version of Standard Methods), since the version of
Method 5310 B, C, or D that appears in that printed volume is that
cited by USEPA as acceptable for use. USEPA later added
Method 5310 B, C, or D from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
B)
Ultraviolet Absorption at 254 nm (UV
254
). Method 5910 B
(Ultraviolet Absorption Method). UV absorption must be measured
at 253.7 nm (may be rounded off to 254 nm). Prior to analysis,
UV
254
samples must be filtered through a 0.45
μm
pore-diameter
filter. The pH of UV
254
samples may not be adjusted. Samples must
be analyzed as soon as practical after sampling, not to exceed 48
hours; and
BOARD NOTE: On January 4, 2006 (at 71 Fed. Reg. 388),
USEPA amended the entries for specific ultraviolet absorbance-
ultraviolet absorption at 254 nm at corresponding 40 CFR
141.131(d)(4)(ii) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 5910 B (as approved in
2000). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
5910 B that appears in that printed volume is that cited by USEPA
as acceptable for use. USEPA later added Method 5910 B from
the 21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
5)
pH. All methods allowed in Section 611.611(a)(17) for measuring pH.
6)
Magnesium. All methods allowed in Section 611.611(a) for measuring
magnesium.
BOARD NOTE: Derived from 40 CFR 141.131 (2006) (2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).

154
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART K: GENERAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section 611.480
Alternative Analytical Techniques
The Agency may must approve, by a SEP issued pursuant to Section 611.110, an alternate
alternative analytical technique if it determines that USEPA has approved the method as an
alternative method by adding it to 40 CFR 141 and the Board has not incorporated the federal
approval into this Part 611. The Agency must not approve an alternate alternative analytical
technique without the concurrence of USEPA. The Agency must approve an alternate technique
if it is substantially equivalent to the prescribed test in both precision and accuracy as it relates to
the determination of compliance with any MCL. The use of the alternate alternative analytical
technique must not decrease the frequency of monitoring required by this Part.
BOARD NOTE: Derived from 40 CFR 141.27 (2002) (2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART L: MICROBIOLOGICAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section 611.526
Analytical Methodology
a)
The standard sample volume required for total coliform analysis, regardless of
analytical method used, is 100 mℓ.
b)
Suppliers need only determine the presence or absence of total coliforms; a
determination of total coliform density is not required.
c)
Suppliers must conduct total coliform analyses in accordance with one of the
following analytical methods, incorporated by reference in Section 611.102, or in
accordance with an alternative method approved by the Agency pursuant to
Section 611.480 (the time from sample collection to initiation of analysis may not
exceed 30 hours, and the supplier is encouraged but not required to hold samples
below 10° C during transit):
1)
Total Coliform Fermentation Technique, as set forth in Standard Methods,
18th, 19th, or 20th, or 21st ed.: Methods 9221 A and B, as follows:
A)
Lactose broth, as commercially available, may be used in lieu of
lauryl tryptose broth if the supplier conducts at least 25 parallel
tests between this medium and lauryl tryptose broth using the
water normally tested and this comparison demonstrates that the

155
false-positive rate and false-negative rate for total coliforms, using
lactose broth, is less than 10 percent;
B)
If inverted tubes are used to detect gas production, the media
should cover these tubes at least one-half to two-thirds after the
sample is added; and
C)
No requirement exists to run the completed phase on 10 percent of
all total coliform-positive confirmed tubes.
2)
Total Coliform Membrane Filter Technique, as set forth in Standard
Methods, 18th, 19th, or 20th, or 21st ed.: Methods 9222 A, B, and C.
3)
Presence-Absence (P-A) Coliform Test, as set forth in: Standard
Methods, 18th, 19th, or 20th, or 21st ed.: Method 9221 D, as follows:
A)
No requirement exists to run the completed phase on 10 percent of
all total coliform-positive confirmed tubes; and
B)
Six-times formulation strength may be used if the medium is filter-
sterilized rather than autoclaved.
4)
ONPG-MUG test: Standard Methods, 18th, 19th, 20th, or 21st ed., or
from Standard Methods Online: Method 9223. (The ONPG-MUG test is
also known as the Autoanalysis Colilert System.).
5)
Colisure Test (Autoanalysis Colilert System). (The Colisure Test may be
read after an incubation time of 24 hours.)
BOARD NOTE: USEPA included the P-A Coliform and Colisure Tests
for testing finished water under the coliform rule, but did not include them
for the purposes of the surface water treatment rule, under Section
611.531, for which quantitation of total coliforms is necessary. For these
reasons, USEPA included Standard Methods: Method 9221 C for the
surface water treatment rule, but did not include it for the purposes of the
total coliform rule, under this Section.
6)
E*Colite® Test (Charm Sciences, Inc.).
7)
m-ColiBlue24® Test (Hatch Company).
8)
Readycult Coliforms 100 Presence/Absence Test.
9)
Membrane Filter Technique using Chromocult Coliform Agar.
10)
Colitag® Test.

156
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200), USEPA amended
note 1 to the table at corresponding 40 CFR 141.21(f)(3) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method 9221 A, B, and
D (as approved in 1999) or Method 9222 A, B, and C (as approved in 1997); and
9223 B (as approved in 1997). The Board has cited to the 21st edition of
Standard Methods for the Examination of Water and Wastewater (the printed
version of Standard Methods) for Methods 9221 and 9223, since the cited
versions of the methods appears in that reference. USEPA later added Method
9221 A, B, and D; Method 9222 A, B, and C; Method 9223 from the 21st edition
of Standard Methods as an approved alternative method in appendix A to subpart
C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
d)
This subsection corresponds with 40 CFR 141.21(f)(4), which USEPA has
marked “reserved.” This statement maintains structural consistency with the
federal regulations.
e)
Suppliers must conduct fecal coliform analysis in accordance with the following
procedure:
1)
When the MTF Technique or P-A Coliform Test is used to test for total
coliforms, shake the lactose-positive presumptive tube or P-A vigorously
and transfer the growth with a sterile 3-mm loop or sterile applicator stick
into brilliant green lactose bile broth and EC medium, defined below, to
determine the presence of total and fecal coliforms, respectively.
2)
For approved methods that use a membrane filter, transfer the total
coliform-positive culture by one of the following methods: remove the
membrane containing the total coliform colonies from the substrate with
sterile forceps and carefully curl and insert the membrane into a tube of
EC medium; (the laboratory may first remove a small portion of selected
colonies for verification); swab the entire membrane filter surface with a
sterile cotton swab and transfer the inoculum to EC medium (do not leave
the cotton swab in the EC medium); or inoculate individual total coliform-
positive colonies into EC medium. Gently shake the inoculated tubes of
EC medium to insure adequate mixing and incubate in a waterbath at
44.5±0.2° C for 24±2 hours. Gas production of any amount in the inner
fermentation tube of the EC medium indicates a positive fecal coliform
test.
3)
EC medium is described in Standard Methods, 18th ed., 19th ed., and 20th
ed.: Method 9221 E.
4)
Suppliers need only determine the presence or absence of fecal coliforms;
a determination of fecal coliform density is not required.

157
f)
Suppliers must conduct analysis of E. coli in accordance with one of the
following analytical methods, incorporated by reference in Section 611.102:
1)
EC medium supplemented with 50 μg/ℓ of MUG (final concentration).
EC medium is as described in subsection (e) of this Section. MUG may
be added to EC medium before autoclaving. EC medium supplemented
with 50 μg/ℓ MUG is commercially available. At least 10 mℓ of EC
medium supplemented with MUG must be used. The inner inverted
fermentation tube may be omitted. The procedure for transferring a total
coliform-positive culture to EC medium supplemented with MUG is as in
subsection (e) of this Section for transferring a total coliform-positive
culture to EC medium. Observe fluorescence with an ultraviolet light
(366 nm) in the dark after incubating tube at 44.5±2° C for 24±2 hours; or
2)
Nutrient agar supplemented with 100 μg/ℓ MUG (final concentration), as
described in Standard Methods, 19th ed. and 20th ed.: Method 9222 G.
This test is used to determine if a total coliform-positive sample, as
determined by the MF technique, contains E. coli. Alternatively, Standard
Methods, 18th ed.: Method 9221 B may be used if the membrane filter
containing a total coliform-positive colony or colonies is transferred to
nutrient agar, as described in Method 9221 B (paragraph 3), supplemented
with 100 μg/ℓ MUG. If Method 9221 B is used, incubate the agar plate at
35° Celsius for four hours, then observe the colony or colonies under
ultraviolet light (366-nm) in the dark for fluorescence. If fluorescence is
visible, E. coli are present.
3)
Minimal Medium ONPG-MUG (MMO-MUG) Test, as set forth in
Appendix D of this Part. (The Autoanalysis Colilert System is a MMO-
MUG test.) If the MMO-MUG test is total coliform positive after a 24-
hour incubation, test the medium for fluorescence with a 366-nm
ultraviolet light (preferably with a six-watt lamp) in the dark. If
fluorescence is observed, the sample is E. coli-positive. If fluorescence is
questionable (cannot be definitively read) after 24 hours incubation,
incubate the culture for an additional four hours (but not to exceed 28
hours total), and again test the medium for fluorescence. The MMO-
MUG test with hepes buffer is the only approved formulation for the
detection of E. coli.
4)
The Colisure Test (Autoanalysis Colilert System).
5)
The membrane filter method with MI agar.
6)
The E*Colite® Test.
7)
The m-ColiBlue24® Test.

158
8)
Readycult Coliforms 100 Presence/Absence Test.
9)
Membrane Filter Technique using Chromocult Coliform Agar.
10)
Colitag® Test.
g)
As an option to the method set forth in subsection (f)(3) of this Section, a supplier
with a total coliform-positive, MUG-negative, MMO-MUG test may further
analyze the culture for the presence of E. coli by transferring a 0.1 mℓ, 28-hour
MMO-MUG culture to EC medium + MUG with a pipet. The formulation and
incubation conditions of the EC medium + MUG, and observation of the results,
are described in subsection (f)(1) of this Section.
h)
This subsection corresponds with 40 CFR 141.21(f)(8), a central listing of all
documents incorporated by reference into the federal microbiological analytical
methods. The corresponding Illinois incorporations by reference are located at
Section 611.102. This statement maintains structural parity with USEPA
regulations.
BOARD NOTE: Derived from 40 CFR 141.21(f) (2003) (2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.531
Analytical Requirements
The analytical methods specified in this Section, or alternative methods approved by the Agency
pursuant to Section 611.480, must be used to demonstrate compliance with the requirements of
only 611.Subpart B; they do not apply to analyses performed for the purposes of Sections
611.521 through 611.527 of this Subpart L. Measurements for pH, temperature, turbidity, and
RDCs must be conducted under the supervision of a certified operator. Measurements for total
coliforms, fecal coliforms and HPC must be conducted by a laboratory certified by the Agency
to do such analysis. The following procedures must be performed by the following methods,
incorporated by reference in Section 611.102:
a)
A supplier shall do as follows:
1)
Conduct analyses of pH in accordance with one of the methods listed at
Section 611.611; and
2)
Conduct analyses of total coliforms, fecal coliforms, heterotrophic
bacteria, and turbidity in accordance with one of the following methods,
and by using analytical test procedures contained in USEPA Technical
Notes, incorporated by reference in Section 611.102, as follows:
A)
Total Coliforms.

159
BOARD NOTE: The time from sample collection to initiation of
analysis for source (raw) water samples required by Sections
611.521 and 611.532 and Subpart B of this Part only must not
exceed eight hours. The supplier is encouraged but not required to
hold samples below 10° C during transit.
i)
Total coliform fermentation technique: Standard Methods,
18th, 19th, or 20th, or 21st ed.: Method 9221 A, B, and C.
BOARD NOTE: Lactose broth, as commercially available,
may be used in lieu of lauryl tryptose broth if the supplier
conducts at least 25 parallel tests between this medium and
lauryl tryptose broth using the water normally tested and
this comparison demonstrates that the false-positive rate
and false-negative rate for total coliforms, using lactose
broth, is less than 10 percent. If inverted tubes are used to
detect gas production, the media should cover these tubes
at least one-half to two-thirds after the sample is added. No
requirement exists to run the completed phase on 10
percent of all total coliform-positive confirmed tubes.
ii)
Total coliform membrane filter technique: Standard
Methods, 18th, 19th, or 20th, or 21st ed.: Method 9222 A,
B, and C.
iii)
ONPG-MUG test (also known as the Autoanalysis Colilert
System): Standard Methods, 18th, 19th, or 20th, or 21st
ed.: Method 9223.
BOARD NOTE: USEPA included the P-A Coliform and
Colisure Tests for testing finished water under the coliform
rule, under Section 611.526, but did not include them for
the purposes of the surface water treatment rule, under this
Section, for which quantitation of total coliforms is
necessary. For these reasons, USEPA included Standard
Methods: Method 9221 C for the surface water treatment
rule, but did not include it for the purposes of the total
coliform rule, under Section 611.526.
B)
Fecal Coliforms.
BOARD NOTE: The time from sample collection to initiation of
analysis for source (raw) water samples required by Sections
611.521 and 611.532 and Subpart B of this Part only must not
exceed eight hours. The supplier is encouraged but not required to

160
hold samples below 10° C during transit.
i)
Fecal coliform procedure: Standard Methods, 18th, 19th,
or 20th, or 21st ed.: Method 9221 E.
BOARD NOTE: A-1 broth may be held up to three months
seven days in a tightly closed screwcap tube at 4° C (39°
F).
ii)
Fecal Coliform Membrane Filter Procedure: Standard
Methods, 18th, 19th, or 20th, or 21st ed.: Method 9222 D.
C)
Heterotrophic bacteria.
i)
Pour plate method: Standard Methods, 18th, 19th, or 20th,
or 21st ed.: Method 9215 B.
BOARD NOTE: The time from sample collection to
initiation of analysis must not exceed eight hours. The
supplier is encouraged but not required to hold samples
below 10° C during transit.
ii)
SimPlate method.
D)
Turbidity.
BOARD NOTE: Styrene divinyl benzene beads (
e.g.
AMCO-
AEPA–1 or equivalent) and stabilized formazin (
e.g.
, Hach
StablCal™ or equivalent) are acceptable substitutes for formazin.
i)
Nephelometric method: Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method 2130 B.
ii)
Nephelometric method: USEPA Environmental Inorganic
Methods: Method 180.1
iii)
GLI Method 2.
iv)
Hach FilterTrak Method 10133.
E)
Temperature: Standard Methods, 18th, 19th, or 20th, or 21st ed.:
Method 2550.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200), USEPA amended
the entries for total coliforms, fecal coliforms, heterotrophic bacteria, turbidity,
and temperature at corresponding 40 CFR 141.74(a)(1) to allow the use of

161
Standard Methods Online (at www.standardmethods.org), Method 2130 B (as
approved in 2001); Method 9215 B (as approved in 2000); Method 9221 A, B,
and C (as approved in 1999); Method 9222 A, B, C, and D (as approved in 1997);
and Method 9223 B (as approved in 1997). The Board has instead cited to the
21st edition of Standard Methods for the Examination of Water and Wastewater
(the printed version of Standard Methods), since the versions of Method 2130,
Method 9215, Method 9221, Method 9222, and Method 9223 that appear in that
printed volume are those cited by USEPA as acceptable for use. USEPA later
added Method 2130 B; Method 9215 B; Method 9221 A, B, C, and E; Method
9222 A, B, C, and D; and Method 9223 from the 21st edition of Standard
Methods as an approved alternative method in appendix A to subpart C of 40
CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
b)
A supplier must measure residual disinfectant concentrations with one of the
following analytical methods from Standard Methods, 18th, 19th, or 20th ed. (the
method for ozone, Method 4500-O3 B, appears only in the 18th and 19th
editions):
1)
Free chlorine.
A)
Amperometric Titration: Method 4500-Cl D.
i)
Standard Methods, 18th, 19th, 20th, or 21st ed.: Method
4500-Cl D.
ii)
ASTM Method D 1253-03.
B)
DPD Ferrous Titrimetric: Standard Methods, 18th, 19th, 20th, or
21st ed.: Method 4500-Cl F.
C)
DPD Colimetric: Standard Methods, 18th, 19th, 20th, or 21st ed.:
Method 4500-Cl G.
D)
Syringaldazine (FACTS): Standard Methods, 18th, 19th, 20th, or
21st ed.: Method 4500-Cl H.
2)
Total chlorine.
A)
Amperometric Titration: Method 4500-Cl D.
i)
Standard Methods, 18th, 19th, 20th, or 21st ed.: Method
4500-Cl D.
ii)
ASTM Method D 1253-03.
B)
Amperometric Titration (low level measurement): Standard

162
Methods, 18th, 19th, 20th, or 21st ed.: Method 4500-Cl E.
C)
DPD Ferrous Titrimetric: Standard Methods, 18th, 19th, 20th, or
21st ed.: Method 4500-Cl F.
D)
DPD Colimetric: Standard Methods, 18th, 19th, 20th, or 21st ed.:
Method 4500-Cl G.
E)
Iodometric Electrode: Standard Methods, 18th, 19th, 20th, or 21st
ed.: Method 4500-Cl I.
3)
Chlorine dioxide.
A)
Amperometric Titration: Standard Methods, 18th, 19th, 20th, or
21st ed.: Method 4500-ClO
2
C or E.
B)
DPD Method: Standard Methods, 18th, 19th, or 20th, ed.: Method
4500-ClO
2
D.
C)
Spectrophotometric: USEPA OGWDW Methods, Method 327.0.
4)
Ozone: Indigo Method: Standard Methods, 18th, 19th, 20th, or 21st ed.:
Method 4500-O
3
B.
5)
Alternative test methods: The Agency may grant a SEP pursuant to
Section 611.110 that allows a supplier to use alternative chlorine test
methods as follows:
A)
DPD colorimetric test kits: Residual disinfectant concentrations
for free chlorine and combined chlorine may also be measured by
using DPD colorimetric test kits.
B)
Continuous monitoring for free and total chlorine: Free and total
chlorine residuals may be measured continuously by adapting a
specified chlorine residual method for use with a continuous
monitoring instrument, provided the chemistry, accuracy, and
precision remain the same. Instruments used for continuous
monitoring must be calibrated with a grab sample measurement at
least every five days or as otherwise provided by the Agency.
BOARD NOTE: Suppliers may use a five-tube test or a 10-tube
test.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200), USEPA amended
the entries for free chlorine, total chlorine, chlorine dioxide, and ozone at
corresponding 40 CFR 141.74(a)(2) to allow the use of Standard Methods Online

163
(at www.standardmethods.org), Method 4500-Cl D, E, F, G, and H (as approved
in 2000); Method 4500-ClO
2
C and E (as approved in 2000); and Method 4500-
O
3
B (as approved in 1997). The Board has instead cited to the 21st edition of
Standard Methods for the Examination of Water and Wastewater (the printed
version of Standard Methods), since the versions of Method 4500-Cl, Method
4500-ClO
2
, and Method 4500-O
3
that appear in that printed volume are those
cited by USEPA as acceptable for use. USEPA later added Method 4500-Cl D, E,
F, G, and H; Method 4500-ClO
2
C and E; and Method 4500-O
3
B from the 21st
edition of Standard Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
BOARD NOTE: Derived from 40 CFR 141.74(a) (2002) (2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART N: INORGANIC MONITORING AND ANALYTICAL
REQUIREMENTS
Section 611.600
Applicability
The following types of suppliers must conduct monitoring to determine compliance with the old
MCLs in Section 611.300 and the revised MCLs in 611.301, as appropriate, in accordance with
this Subpart N:
a)
CWS suppliers.
b)
NTNCWS suppliers.
c)
Transient non-CWS suppliers to determine compliance with the nitrate and nitrite
MCLs.
d)
Detection limits. The following are detection limits for purposes of this Subpart
N (MCLs from Section 611.301 are set forth for information purposes only):
Contaminant
MCL (mg/ℓ,
except
asbestos)
Method
Detection
Limit (mg/ℓ)
Antimony
0.006
Atomic absorption-furnace
technique
0.003
Atomic absorption-furnace
technique (stabilized
temperature)
0.0008
5
Inductively-coupled
Inductively coupled plasma-
0.0004

164
mass spectrometry
Atomic absorption-gaseous
hydride technique
0.001
Arsenic
0.010
6
Atomic absorption-furnace
technique
0.001
Atomic absorption-furnace
technique (stabilized
temperature)
0.00005
7
Atomic absorption-gaseous
hydride technique
0.001
Inductively-coupled
Inductively coupled plasma-
mass spectrometry
0.0014
8
Asbestos
7 MFL
1
Transmission electron
microscopy
0.01 MFL
Barium
2
Atomic absorption-furnace
technique
0.002
Atomic absorption-direct
aspiration technique
0.1
Inductively-coupled
Inductively coupled plasma
arc furnace
0.002
Inductively-coupled
Inductively coupled plasma
0.001
Beryllium
0.004
Atomic absorption-furnace
technique
0.0002
Atomic absorption-furnace
technique (stabilized temper-
ature)
0.00002
5
Inductively-coupled
Inductively coupled plasma
2
0.0003
Inductively-coupled
Inductively coupled plasma-
mass spectrometry
0.0003
Cadmium
0.005
Atomic absorption-furnace
technique
0.0001
Inductively-coupled
Inductively coupled plasma
0.001
Chromium
0.1
Atomic absorption-furnace
technique
0.001

165
Inductively-coupled
Inductively coupled plasma
0.007
Inductively-coupled
Inductively coupled plasma
0.001
Cyanide
0.2
Distillation,
spectrophotometric
3
0.02
Automated distillation,
spectrophotometric
3
0.005
Distillation, selective
electrode
3
0.05
Distillation, amenable,
spectrophotometric
4
0.02
UV, distillation,
spectrophotometric
9
0.0005
Distillation, Micro distillation,
flow injection,
spectrophotometric
3
0.0006
Ligand exchange with
amperometry
4
0.0005
Mercury
0.002
Manual cold vapor technique 0.0002
Automated cold vapor
technique
0.0002
Nickel
No MCL
Atomic absorption-furnace
technique
0.001
Atomic absorption-furnace
technique (stabilized temper-
ature)
0.0006
5
Inductively-coupled
Inductively coupled plasma
2
0.005
Inductively-coupled
Inductively coupled plasma-
mass spectrometry
0.0005
Nitrate (as N)
10
Manual cadmium reduction
0.01
Automated hydrazine
reduction
0.01
Automated cadmium
reduction
0.05
Ion-selective electrode
1
Ion chromatography
0.01
Capillary ion electrophoresis
0.076
Nitrite (as N)
1
Spectrophotometric
0.01

166
Automated cadmium
reduction
0.05
Manual cadmium reduction
0.01
Ion chromatography
0.004
Capillary ion electrophoresis
0.103
Selenium
0.05
Atomic absorption-furnace
technique
0.002
Atomic absorption-gaseous
hydride technique
0.002
Thallium
0.002
Atomic absorption-furnace
technique
0.001
Atomic absorption-furnace
technique (stabilized temper-
ature)
0.0007
5
Inductively-coupled
Inductively coupled plasma-
mass spectrometry
0.0003
Footnotes.
1 “MFL” means millions of fibers per liter less than 10
μm.
2 Using a 2× preconcentration step as noted in Method 200.7. Lower MDLs
may be achieved when using a 4× preconcentration.
3 Screening method for total cyanides.
4 Measures “free” cyanides when distillation, digestion, or ligand exchange is
omitted.
5 Lower MDLs are reported using stabilized temperature graphite furnace
atomic absorbtion absorption.
6 The value for arsenic is effective January 23, 2006. Until then, the MCL is
0.05 mg/ℓ.
7 The MDL reported for USEPA Method 200.9 (atomic absorption-platform
furnace (stabilized temperature)) was determined using a 2× concentration
step during sample digestion. The MDL determined for samples analyzed
using direct analyses (i.e., no sample digestion) will be higher. Using
multiple depositions, USEPA Method 200.9 is capable of obtaining an MDL
of 0.0001 mg/ℓ.
8 Using selective ion monitoring, USEPA Method 200.8 (ICP-MS) is capable of
obtaining an MDL of 0.0001 mg/ℓ.
9 Measures total cyanides when UV-digestor is used, and “free” cyanides when
UV-digestor is bypassed.
BOARD NOTE: Subsections (a) through (c) of this Section are derived from 40 CFR 141.23
preamble (2003) (2007), and subsection (d) of this Section is derived from 40 CFR
141.23(a)(4)(i) (2003)
(2007) and appendix A to 40 CFR 141, as added at 73 Fed. Reg. 31616
(June 3, 2008). See the Board Note at Section 611.301(b) relating to the MCL for nickel.

167
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.611
Inorganic Analysis
Analytical methods are from documents incorporated by reference in Section 611.102. These are
mostly referenced by a short name defined by Section 611.102(a). Other abbreviations are
defined in Section 611.101.
a)
Analysis for the following contaminants must be conducted using the following
methods or an alternative method approved pursuant to Section 611.480. Criteria
for analyzing arsenic, chromium, copper, lead, nickel, selenium, sodium, and
thallium with digestion or directly without digestion, and other analytical
procedures, are contained in USEPA Technical Notes, incorporated by reference
in Section 611.102. (This document also contains approved analytical test
methods that remained available for compliance monitoring until July 1, 1996.
These methods are not available for use after July 1, 1996.)
BOARD NOTE: Because MDLs reported in USEPA Environmental Metals
Methods 200.7 and 200.9 were determined using a 2× preconcentration step
during sample digestion, MDLs determined when samples are analyzed by direct
analysis (i.e., no sample digestion) will be higher. For direct analysis of cadmium
and arsenic by USEPA Environmental Metals Method 200.7, and arsenic by
Standard Methods, 18th, 19th, or 20th, or 21st ed., Method 3120 B sample
preconcentration using pneumatic nebulization may be required to achieve lower
detection limits. Preconcentration may also be required for direct analysis of
antimony, lead, and thallium by USEPA Environmental Metals Method 200.9;
antimony and lead by Standard Methods, 18th, or 19th, or 21st ed., Method 3113
B; and lead by ASTM Method D3559-96 D or D3559-03 D unless multiple in-
furnace depositions are made.
1)
Alkalinity.
A)
Titrimetric.
i)
ASTM Method D1067-92 B or D1067-02 B; or
ii)
Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method
2320 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for alkalinity by
titrimetric alkalinity in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 2320 B (as
approved in 1997). The Board has instead cited to the 21st

168
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 2320 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 2320 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Electrometric titration: USGS Methods: Method I-1030-85.
2)
Antimony.
A)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
B)
Atomic absorption, hydride technique: ASTM Method D3697-92
or D3697-02.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique: Standard Methods, 18th, or
19th, or 21st ed.: Method 3113 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for antimony by atomic absorption,
furnace technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3113 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3113 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3113 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).

169
3)
Arsenic.
BOARD NOTE: If ultrasonic nebulization is used in the determination of
arsenic by Methods 200.7, 200.8, or Standard Methods, 18th, 19th, or
20th, or 21st ed., 3120 B, the arsenic must be in the pentavalent state to
provide uniform signal response. For methods 200.7 and 3120 B, both
samples and standards must be diluted in the same mixed acid matrix
concentration of nitric and hydrochloric acid with the addition of 100 μℓ
of 30% hydrogen peroxide per 100 mℓ of solution. For direct analysis of
arsenic with method 200.8 using ultrasonic nebulization, samples and
standards must contain one mg/ℓ of sodium hypochlorite.
A)
Inductively-coupled Inductively coupled plasma.
BOARD NOTE: Effective January 23, 2006, a supplier may no
longer employ analytical methods using the ICP-AES technology
because the detection limits for these methods are 0.008 mg/ℓ or
higher. This restriction means that the two ICP-AES methods
(USEPA Environmental Metals Method 200.7 and Standard
Methods, Method 3120 B) approved for use for the MCL of 0.05
mg/ℓ may not be used for compliance determinations for the
revised MCL of 0.010 mg/ℓ. However, prior to the 2005 through
2007 compliance period, a supplier may have compliance samples
analyzed with these less sensitive methods.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for arsenic by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method for several other metals in appendix A to subpart C
of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616). USEPA, however, did not specifically add Method

170
2130 B as to arsenic in the June 3, 2008 action.
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique.
i)
ASTM Method D2972-97 C or 2972-03 C; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3113
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for arsenic by atomic
absorption, furnace technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3113 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3113 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3113 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
E)
Atomic absorption, hydride technique.
i)
ASTM Method D2972-97 B or 2972-03
B; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3114
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for antimony by atomic
absorption, hydride technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3114 B (as
approved in 1997). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),

171
since the version of Method 3114 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3114 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
F)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
4)
Asbestos: Transmission electron microscopy: USEPA Asbestos
Methods-100.1 and USEPA Asbestos Methods-100.2.
5)
Barium.
A)
Inductively-coupled Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for barium by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, direct aspiration technique: Standard Methods,

172
18th, or 19th, or 21st ed.: Method 3111 D.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for barium by atomic absorption, direct
aspiration technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 D (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3111 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3111 D from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
D)
Atomic absorption, furnace technique: Standard Methods, 18th,
19th, or 21st ed.: Method 3113 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for barium by atomic absorption,
furnace technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3113 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3113 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3113 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
6)
Beryllium.
A)
Inductively-coupled Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or

173
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for beryllium by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique.
i)
ASTM Method D3645-97 B or D3645-03 B; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3113
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for beryllium by atomic
absorption, furnace technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3113 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3113 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3113 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).

174
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
7)
Cadmium.
A)
Inductively-coupled Inductively coupled plasma arc furnace:
USEPA Environmental Metals Methods: Method 200.7.
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique: Standard Methods, 18th, or
19th, or 21st ed.: Method 3113 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for cadmium by atomic absorption,
furnace technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3113 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3113 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3113 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
8)
Calcium.

175
A)
EDTA titrimetric.
i)
ASTM Method D511-93 A or D511-03 A; or
ii)
Standard Methods, 18th, or 19th, or 20th ed.: Method
3500-Ca D or Standard Methods, 20th or 21st ed.: Method
3500-Ca B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for calcium by EDTA
titrimetric in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 3500-Ca D (as
approved in 1997). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3500-Ca that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3500-Ca B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Atomic absorption, direct aspiration.
i)
ASTM Method D511-93 B or D511-03 B; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3111
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for calcium by atomic
absorption, direct aspiration in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3111 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3111 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3111 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
C)
Inductively-coupled
Inductively coupled plasma.

176
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for calcium by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
D)
Ion chromatography: ASTM Method D6919-03.
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
9)
Chromium.
A)
Inductively-coupled Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for chromium by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water

177
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique: Standard Methods, 18th, or
19th, or 21st ed.: Method 3113 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for chromium by atomic absorption,
furnace technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3113 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3113 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3113 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
10)
Copper.
A)
Atomic absorption, furnace technique.
i)
ASTM Method D1688-95 C or D1688-02
C; or
ii)
Standard Methods, 18th,
or 19th, or 21st ed.: Method 3113

178
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for copper by atomic
absorption, furnace technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3113 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3113 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3113 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Atomic absorption, direct aspiration.
i)
ASTM Method D1688-95 A or 1688-02 A; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3111
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for copper by atomic
absorption, direct aspiration in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3111 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3111 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3111 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
C)
Inductively-coupled
Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.

179
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for copper by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
D)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
E)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
F)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
11)
Conductivity; Conductance.
A)
ASTM Method D1125-95(1999)
A; or
B)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method 2510
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for conductivity by conductance in the
table at corresponding 40 CFR 141.23(k)(1) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
2510 B (as approved in 1997). The Board has instead cited to the
21st edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods), since
the version of Method 2510 that appears in that printed volume is
that cited by USEPA as acceptable for use. USEPA later added
Method 2510 B from the 21st edition of Standard Methods as an

180
approved alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
12)
Cyanide.
A)
Manual distillation (ASTM Method D2036-98 A or Standard
Methods, 18th, 19th, or 20th ed.: Method 4500-CN
-
C), followed
by spectrophotometric, amenable.
i)
ASTM Method D2036-98 B or 2036-06 B; or
BOARD NOTE: USEPA added ASTM Method 2036-06 A
as an approved alternative method in appendix A to subpart
C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-CN
-
G.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for cyanide by
spectrophotometric, amenable, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 4500-CN
-
G (as approved in 1999). The Board has instead cited to
the 21st edition of Standard Methods for the Examination
of Water and Wastewater (the printed version of Standard
Methods), since the version of Method 4500-CN
-
that
appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 4500-CN
-
G from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
B)
Manual distillation (ASTM Method D2036-98 A or Standard
Methods, 18th, 19th, or 20th ed.: Method 4500-CN
-
C), followed
by spectrophotometric, manual.
i)
ASTM Method D2036-98 A or 2036-06 A;
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-CN
-
E; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for cyanide by

181
spectrophotometric, manual, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 4500-CN
-
E (as approved in 1999). The Board has instead cited to the
21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard
Methods), since the version of Method 4500-CN
-
that
appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 4500-CN
-
E from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
iii)
USGS Methods: Method I-3300-85.
C)
Manual distillation (ASTM Method D2036-98 A or Standard
Methods, 18th, 19th, or 20th ed.: Method 4500-CN
-
C), followed
by semiautomated spectrophotometric: Spectrophotometric,
semiautomated: USEPA Environmental Inorganic Methods:
Method 335.4.
D)
Selective electrode: Standard Methods, 18th, 19th, or 20th, or 21st
ed.: Method 4500-CN
-
F.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for cyanide by selective electrode in
the table at corresponding 40 CFR 141.23(k)(1) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
4500-CN
-
F (as approved in 1999). The Board has instead cited to
the 21st edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods), since
the version of Method 4500-CN
-
that appears in that printed
volume is that cited by USEPA as acceptable for use. USEPA
later added Method 4500-CN
-
F from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
E)
UV/Distillation/Spectrophotometric: Kelada 01.
F)
Distillation/Spectrophotometric:
Microdistillation/Flow
Injection/Spectrophotometric: QuickChem 10-204-00-1-X.
G)
Ligand exchange and amperometry.

182
i)
ASTM Method D6888-03.
ii)
OI Analytical Method OIA-1677 DW.
13)
Fluoride.
A)
Ion Chromatography.
i)
USEPA Environmental Inorganic Methods: Method 300.0,
or Method 300.1;
ii)
ASTM Method D4327-97 or D4327-03; or
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4110 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for fluoride by ion
chromatography in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4110 B (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4110 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4110 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Manual distillation, colorimetric SPADNS: Standard Methods,
18th, 19th, or 20th, or 21st ed.: Method 4500-F
-
B and D.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for fluoride by manual distillation,
colorimetry SPADNS, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 4500-F
-
B and D (as
approved in 1997). The Board has instead cited to the 21st edition
of Standard Methods for the Examination of Water and
Wastewater (the printed version of Standard Methods), since the
version of Method 4500-F
-
that appears in that printed volume is
that cited by USEPA as acceptable for use. USEPA later added
Method 4500-F
-
B and D from the 21st edition of Standard
Methods as an approved alternative method in appendix A to

183
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
C)
Manual electrode.
i)
ASTM Method D1179-93 B, D1179-99 B, or D1179-04 B;
or
BOARD NOTE: USEPA added ASTM Method D1179-04
B as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73
Fed. Reg. 31616).
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-F
-
C.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for fluoride by manual
electrode in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-F
-
C (as
approved in 1997). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-F
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-F
-
C from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
D)
Automated electrode: Technicon Methods: Method 380-75WE.
E)
Automated alizarin.
i)
Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method
4500-F
-
E; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for fluoride by
automated alizarin in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-F
-
E (as
approved in 1997). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),

184
since the version of Method 4500-F
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-F
-
E from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
ii)
Technicon Methods: Method 129-71W.
F)
Capillary ion electrophoresis: ASTM Method D6508-00(2005).
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for fluoride to add capillary ion
electrophoresis in the table at corresponding 40 CFR 141.23(k)(1)
to allow the use of “Waters Method D6508, Rev. 2.” The Board
attempt to locate a copy of the method disclosed that it is an
ASTM method originally approved in 2000 and reapproved in
2005. The Board has cited to the ASTM Method D6508-00(2005).
14)
Lead.
A)
Atomic absorption, furnace technique.
i)
ASTM Method D3559-96 D or D3559-03 D; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3113
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for lead by atomic
absorption, furnace technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3113 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3113 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3113 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.

185
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Differential Pulse Anodic Stripping Voltammetry: Palintest
Method 1001.
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
15)
Magnesium.
A)
Atomic absorption.
i)
ASTM Method D511-93 B or D511-03 B; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3111
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for magnesium by
atomic absorption in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 3111 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3111 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3111 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled
Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.

186
11200), USEPA amended the entry for magnesium by
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
C)
Complexation titrimetric.
i)
ASTM Method D511-93 A or D511-03 A; or
ii)
Standard Methods, 18th or 19th ed.: Method 3500-Mg E or
Standard Methods, 20th or 21st ed.: Method 3500-Mg B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for magnesium by
complexation titrimetric in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3500-Mg B
(as approved in 1997). The Board has instead cited to the
21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard
Methods), since the version of Method 3500-Mg that
appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3500-Mg
B from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
iii)
Standard Methods, 20th ed.: Method 3500-Mg B.
D)
Ion chromatography: ASTM Method D6919-03.
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,

187
added on June 3, 2008 (at 73 Fed. Reg. 31616).
16)
Mercury.
A)
Manual cold vapor technique.
i)
USEPA Environmental Metals Methods: Method 245.1;
ii)
ASTM Method D3223-97 or D3223-02; or
iii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3112
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for mercury by manual
cold vapor technique in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 3112 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3112 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3112 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Automated cold vapor technique: USEPA Inorganic Methods:
Method 245.2.
C)
Inductively-coupled
Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
17)
Nickel.
A)
Inductively-coupled Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nickel by

188
inductively coupled plasma in the table at corresponding 40
CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, direct aspiration technique: Standard Methods,
18th, or 19th, or 21st ed.: Method 3111 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for nickel by atomic absorption, direct
aspiration technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3111 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3111 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
E)
Atomic absorption, furnace technique: Standard Methods, 18th, or
19th, or 21st ed.: Method 3113 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for nickel by atomic absorption,
furnace technique, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3113 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard

189
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3113 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3113 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
F)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
18)
Nitrate.
A)
Ion chromatography.
i)
USEPA Environmental Inorganic Methods: Method 300.0
or Method 300.1;
ii)
ASTM Method D4327-97 or D4327-03;
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4110 B; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrate by ion
chromatography in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4110 B (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4110 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4110 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
iv)
Waters Test Method B-1011, available from Millipore
Corporation.
B)
Automated cadmium reduction.

190
i)
USEPA Environmental Inorganic Methods: Method 353.2;
ii)
ASTM Method D3867-90 A; or
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-NO
3
-
F.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrate by
automated cadmium reduction in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 4500-NO
3
-
F (as approved in 2000). The Board has instead cited to the
21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard
Methods), since the version of Method 4500-NO
3
-
that
appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 4500-NO
3
-
F from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
C)
Ion selective electrode.
i)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-NO
3
-
D; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrate by ion
selective electrode in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-NO
3
-
D (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-NO
3
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-NO
3
-
D from the
21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
ii)
Technical Bulletin 601.

191
D)
Manual cadmium reduction.
i)
ASTM Method D3867-90 B; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-NO
3
-
E.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrate by manual
cadmium reduction in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-NO
3
-
E (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-NO
3
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-NO
3
-
E from the
21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
E)
Capillary ion electrophoresis: ASTM Method D6508-00(2005).
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for nitrate to add capillary ion
electrophoresis in the table at corresponding 40 CFR 141.23(k)(1)
to allow the use of “Waters Method D6508, Rev. 2.” The Board
attempt to locate a copy of the method disclosed that it is an
ASTM method originally approved in 2000 and reapproved in
2005. The Board has cited to the ASTM Method D6508-00(2005).
19)
Nitrite.
A)
Ion chromatography.
i)
USEPA Environmental Inorganic Methods: Method 300.0
or Method 300.1;
ii)
ASTM Method D4327-97 or D4327-03
;
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4110 B; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrite by ion

192
chromatography in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4110 B (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4110 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4110 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
iv)
Waters Test Method B-1011, available from Millipore
Corporation.
B)
Automated cadmium reduction.
i)
USEPA Environmental Inorganic Methods: Method 353.2;
ii)
ASTM Method D3867-90 A; or
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-NO
3
-
F.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrite by automated
cadmium reduction in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-NO
3
-
F (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-NO
3
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-NO
3
-
F from the
21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
C)
Manual cadmium reduction.
i)
ASTM Method D3867-90 B; or
ii)
Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method
4500-NO
3
-
E.

193
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for nitrite by manual
cadmium reduction in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4500-NO
3
-
E (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-NO
3
-
that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4500-NO
3
-
E from the
21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
D)
Spectrophotometric: Standard Methods, 18th, 19th, or 20th, or
21st ed.: Method 4500-NO
2
-
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for nitrite by spectrophotometric in the
table at corresponding 40 CFR 141.23(k)(1) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
4500-NO
2
-
B (as approved in 2000). The Board has instead cited
to the 21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-NO
2
-
that appears in that printed
volume is that cited by USEPA as acceptable for use. USEPA
later added Method 4500-NO
2
-
B from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
E)
Capillary ion electrophoresis: ASTM Method D6508-00(2005).
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for nitrite to add capillary ion
electrophoresis in the table at corresponding 40 CFR 141.23(k)(1)
to allow the use of “Waters Method D6508, Rev. 2.” The Board
attempt to locate a copy of the method disclosed that it is an
ASTM method originally approved in 2000 and reapproved in
2005. The Board has cited to the ASTM Method D6508-00(2005).
20)
Orthophosphate (unfiltered, without digestion or hydrolysis).
A)
Automated colorimetric, ascorbic acid.

194
i)
USEPA Environmental Inorganic Methods: Method 365.1;
or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-P F.
BOARD NOTE: USEPA added Method 4500-P F from the
21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
USEPA also added Method 4500-P F (as approved in 1999)
as available from Standard Methods Online (at
www.standardmethods.org). The Board has instead cited
only to the 21st edition of Standard Methods for the
Examination of Water and Wastewater (the printed version
of Standard Methods), since the version of Method 4500-P
F that appears in the printed volume is the 1999 version
available from the online source.
B)
Single reagent colorimetric, ascorbic acid.
i)
ASTM Method D515-88 A; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4500-P E.
BOARD NOTE: USEPA added Method 4500-P E from
the 21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
USEPA also added Method 4500-P E (as approved in
1999) as available from Standard Methods Online (at
www.standardmethods.org). The Board has instead cited
only to the 21st edition of Standard Methods for the
Examination of Water and Wastewater (the printed version
of Standard Methods), since the version of Method 4500-P
E that appears in the printed volume is the 1999 version
available from the online source.
C)
Colorimetric, phosphomolybdate: USGS Methods: Method I-
1601-85.
D)
Colorimetric, phosphomolybdate, automated-segmented flow:
USGS Methods: Method I-2601-90.

195
E)
Colorimetric, phosphomolybdate, automated discrete: USGS
Methods: Method I-2598-85.
F)
Ion Chromatography.
i)
USEPA Environmental Inorganic Methods: Method 300.0
or Method 300.1;
ii)
ASTM Method D4327-97 or D4327-03; or
iii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
4110 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for orthophosphate by
ion chromatography in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 4110 B (as
approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 4110 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 4110 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
G)
Capillary ion electrophoresis: ASTM Method D6508-00(2005).
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for orthophosphate to add capillary ion
electrophoresis in the table at corresponding 40 CFR 141.23(k)(1)
to allow the use of “Waters Method D6508, Rev. 2.” The Board
attempt to locate a copy of the method disclosed that it is an
ASTM method originally approved in 2000 and reapproved in
2005. The Board has cited to the ASTM Method D6508-00(2005).
21)
pH: electrometric
.
A)
Electrometric.
iA)
USEPA Inorganic Methods: Method 150.1 or Method 150.2;
iiB)
ASTM Method D1293-95 or D1293-99; or

196
iiiC) Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method 4500-
H+ 4500-H
+
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for pH by electrometric in the table at
corresponding 40 CFR 141.23(k)(1) to allow the use of Standard
Methods Online (at www.standardmethods.org), Method 4500-H
+
B (as approved in 2000). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water and
Wastewater (the printed version of Standard Methods), since the
version of Method 4500-H
+
that appears in that printed volume is
that cited by USEPA as acceptable for use. USEPA later added
Method 4500-H
+
B from the 21st edition of Standard Methods as
an approved alternative method in appendix A to subpart C of 40
CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
USEPA Inorganic Methods: Method 150.2.
22)
Selenium.
A)
Atomic absorption, hydride.
i)
ASTM Method D3859-98 A or D3859-03 A; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3114
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for selenium by atomic
absorption, hydride, in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 3114 B (as
approved in 1997). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3114 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3114 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
Inductively-coupled Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.

197
C)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.
D)
Atomic absorption, furnace technique.
i)
ASTM Method D3859-98 B or D3859-03 B; or
ii)
Standard Methods, 18th, or 19th, or 21st ed.: Method 3113
B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for selenium by atomic
absorption, furnace technique, in the table at corresponding
40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 3113 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3113 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3113 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
E)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
23)
Silica.
A)
Colorimetric, molybdate blue: USGS Methods: Method I-1700-
85.
B)
Colorimetric, molybdate blue, automated-segmented flow: USGS
Methods: Method I-2700-85.
C)
Colorimetric: ASTM Method D859-95 D859-94, D859-00, or
D859-05.
BOARD NOTE: USEPA added ASTM Method D859-05 as an
approved alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).

198
D)
Molybdosilicate: Standard Methods, 18th or 19th ed.: Method
4500-Si D or Standard Methods, 20th or 21st ed.: Method 4500-Si
4500-SiO
2
C.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for silica by molybdosilicate in the
table at corresponding 40 CFR 141.23(k)(1) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
4500-SiO
2
C (as approved in 1997). The Board has instead cited
to the 21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-SiO
2
that appears in that printed
volume is that cited by USEPA as acceptable for use. USEPA
later added Method 4500-SiO
2
C from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
E)
Heteropoly blue: Standard Methods, 18th or 19th ed.: Method
4500-Si E or Standard Methods, 20th or 21st ed.: Method 4500-Si
4500-SiO
2
D.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for silica by heteropoly blue in the
table at corresponding 40 CFR 141.23(k)(1) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
4500-SiO
2
D (as approved in 1997). The Board has instead cited
to the 21st edition of Standard Methods for the Examination of
Water and Wastewater (the printed version of Standard Methods),
since the version of Method 4500-SiO
2
that appears in that printed
volume is that cited by USEPA as acceptable for use. USEPA
later added Method 4500-SiO
2
D from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
F)
Automated method for molybdate-reactive silica: Standard
Methods, 18th or 19th ed.: Method 4500-Si F or Standard
Methods, 20th or 21st
ed.: Method 4500-Si 4500-SiO
2
E.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for silica by automated method for
molybdate-reactive silica in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 4500-SiO
2
E (as approved in

199
1997). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
4500-SiO
2
that appears in that printed volume is that cited by
USEPA as acceptable for use. USEPA later added Method 4500-
SiO
2
E from the 21st edition of Standard Methods as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
G)
Inductively-coupled Inductively coupled plasma.
i)
USEPA Environmental Metals Methods: Method 200.7; or
ii)
Standard Methods, 18th, 19th, or 20th, or 21st ed.: Method
3120 B.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for silica by inductively
coupled plasma in the table at corresponding 40 CFR
141.23(k)(1) to allow the use of Standard Methods Online
(at www.standardmethods.org), Method 3120 B (as
approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 3120 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 3120 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
H)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
24)
Sodium.
A)
Inductively-coupled
Inductively coupled plasma: USEPA
Environmental Metals Methods: Method 200.7.
B)
Atomic absorption, direct aspiration: Standard Methods, 18th,
or
19th, or 21st ed.: Method 3111 B.

200
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for sodium by atomic absorption, direct
aspiration, in the table at corresponding 40 CFR 141.23(k)(1) to
allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 B (as approved in
1999). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
3111 that appears in that printed volume is that cited by USEPA as
acceptable for use. USEPA later added Method 3111 B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
C)
Ion chromatography: ASTM Method D6919-03.
D)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
25)
Temperature; thermometric: Standard Methods, 18th, 19th, or 20th, or
21st ed.: Method 2550.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200), USEPA
amended the entry for temperature by thermometric in the table at
corresponding 40 CFR 141.23(k)(1) to allow the use of Standard Methods
Online (at www.standardmethods.org), Method 2550 (as approved in
2000). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the printed
version of Standard Methods), since the version of Method 2550 that
appears in that printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 2550 from the 21st edition of Standard
Methods as an approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
26)
Thallium.
A)
Inductively-coupled
Inductively coupled plasma-mass
spectrometry: USEPA Environmental Metals Methods: Method
200.8.
B)
Atomic absorption, platform furnace technique: USEPA
Environmental Metals Methods: Method 200.9.

201
b)
Sample collection for antimony, arsenic (effective January 22, 2004), asbestos,
barium, beryllium, cadmium, chromium, cyanide, fluoride, mercury, nickel,
nitrate, nitrite, selenium, and thallium pursuant to Sections 611.600 through
611.604 must be conducted using the following sample preservation, container,
and maximum holding time procedures:
BOARD NOTE: For cyanide determinations samples must be adjusted with
sodium hydroxide to pH 12 at the time of collection. When chilling is indicated
the sample must be shipped and stored at 4° C or less. Acidification of nitrate or
metals samples may be with a concentrated acid or a dilute (50% by volume)
solution of the applicable concentrated acid. Acidification of samples for metals
analysis is encouraged and allowed at the laboratory rather than at the time of
sampling provided the shipping time and other instructions in Section 8.3 of
USEPA Environmental Metals Method 200.7, 200.8, or 200.9 are followed.
1)
Antimony.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
2)
Arsenic.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
3)
Asbestos.
A)
Preservative: Cool to 4° C.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 48 hours.
4)
Barium.
A)
Preservative: Concentrated nitric acid to pH less than 2.

202
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
5)
Beryllium.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
6)
Cadmium.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
7)
Chromium.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
8)
Cyanide.
A)
Preservative: Cool to 4° C. Add sodium hydroxide to pH greater
than 12. See the analytical methods for information on sample
preservation.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 14 days.
9)
Fluoride.

203
A)
Preservative: None.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within one month.
10)
Mercury.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 28 days.
11)
Nickel.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
12)
Nitrate, chlorinated.
A)
Preservative: Cool to 4° C.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 14 days.
13)
Nitrate, non-chlorinated.
A)
Preservative: Concentrated sulfuric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 14 days.
14)
Nitrite.
A)
Preservative: Cool to 4° C.

204
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within 48 hours.
15)
Selenium.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
16)
Thallium.
A)
Preservative: Concentrated nitric acid to pH less than 2.
B)
Plastic or glass (hard or soft).
C)
Holding time: Samples must be analyzed as soon after collection
as possible, but in any event within six months.
c)
Analyses under this Subpart N must be conducted by laboratories that received
approval from USEPA or the Agency. The Agency must certify laboratories to
conduct analyses for antimony, arsenic (effective January 23, 2006), asbestos,
barium, beryllium, cadmium, chromium, cyanide, fluoride, mercury, nickel,
nitrate, nitrite, selenium, and thallium if the laboratory does as follows:
1)
It analyzes performance evaluation (PE) samples, provided by the Agency
pursuant to 35 Ill. Adm. Code 186, that include those substances at levels
not in excess of levels expected in drinking water; and
2)
It achieves quantitative results on the analyses within the following
acceptance limits:
A)
Antimony: ± 30% at greater than or equal to 0.006 mg/ℓ.
B)
Arsenic:
±
30% at greater than or equal to 0.003 mg/ℓ.
C)
Asbestos: 2 standard deviations based on study statistics.
D)
Barium: ± 15% at greater than or equal to 0.15 mg/ℓ.
E)
Beryllium: ± 15% at greater than or equal to 0.001 mg/ℓ.

205
F)
Cadmium: ± 20% at greater than or equal to 0.002 mg/ℓ.
G)
Chromium: ± 15% at greater than or equal to 0.01 mg/ℓ.
H)
Cyanide: ± 25% at greater than or equal to 0.1 mg/ℓ.
I)
Fluoride: ± 10% at 1 to 10 mg/ℓ.
J)
Mercury: ± 30% at greater than or equal to 0.0005 mg/ℓ.
K)
Nickel: ± 15% at greater than or equal to 0.01 mg/ℓ.
L)
Nitrate: ± 10% at greater than or equal to 0.4 mg/ℓ.
M)
Nitrite: ± 15% at greater than or equal to 0.4 mg/ℓ.
N)
Selenium: ± 20% at greater than or equal to 0.01 mg/ℓ.
O)
Thallium: ± 30% at greater than or equal to 0.002 mg/ℓ.
BOARD NOTE: Derived from 40 CFR 141.23(k) (2003) (2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.612
Monitoring Requirements for Old Inorganic MCLs
a)
Analyses for the purpose of determining compliance with the old inorganic MCLs
of Section 611.300 are required as follows:
1)
Analyses for all CWSs utilizing surface water sources must be repeated at
yearly intervals.
2)
Analyses for all CWSs utilizing only groundwater sources must be
repeated at three-year intervals.
3)
This subsection (a)(3) corresponds with 40 CFR 141.23(1)(3), which
requires monitoring for the repealed old MCL for nitrate at a frequency
specified by the state. The Board has followed the USEPA lead and
repealed that old MCL. This statement maintains structural consistency
with USEPA rules.
4)
This subsection (a)(4) corresponds with 40 CFR 141.23(1)(4), which
authorizes the state to determine compliance and initiate enforcement
action. This statement maintains structural consistency with USEPA

206
rules.
b)
If the result of an analysis made under subsection (a) of this Section indicates that
the level of any contaminant listed in Section 611.300 exceeds the old MCL, the
supplier must report to the Agency within seven days and initiate three additional
analyses at the same sampling point within one month.
c)
When the average of four analyses made pursuant to subsection (b) of this
Section, rounded to the same number of significant figures as the old MCL for the
substance in question, exceeds the old MCL, the supplier must notify the Agency
and give notice to the public pursuant to Subpart V of this Part. Monitoring after
public notification must be at a frequency designated by the Agency by a SEP
granted pursuant to Section 611.110 and must continue until the old MCL has not
been exceeded in two successive samples or until a different monitoring schedule
becomes effective as a condition to a variance, an adjusted standard, a site
specific rule, an enforcement action, or another SEP granted pursuant to Section
611.110.
d)
This subsection (d) corresponds with 40 CFR 141.23(o), which pertains to
monitoring for the repealed old MCL for nitrate. This statement maintains
structural consistency with USEPA rules.
e)
This subsection (e) corresponds with 40 CFR 141.23(p), which pertains to the use
of existing data up until a date long since expired. This statement maintains
structural consistency with USEPA rules.
f)
Except for arsenic, for which analyses must be made in accordance with Section
611.611, analyses conducted to determine compliance with the old MCLs of
Section 611.300 must be made in accordance with the following methods,
incorporated by reference in Section 611.102, or alternative methods approved by
the Agency pursuant to Section 611.480.
1)
Fluoride: The methods specified in Section 611.611(c) must apply for the
purposes of this Section.
2)
Iron.
A)
Standard Methods.
i)
Method 3111 B, 18th,
or 19th, or 21st ed.;
ii)
Method 3113 B, 18th, or 19th, or 21st ed.; or
iii)
Method 3120 B, 18th, 19th, or 20th, or 21st ed.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),

207
USEPA amended the entries for iron in the table at 40 CFR
143.4(b) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 B, Method 3113 B, and
Method 3120 B (as approved in 1999). The Board has instead
cited to the 21st edition of Standard Methods for the Examination
of Water and Wastewater (the printed version of Standard
Methods), since the versions of Method 3111, Method 3113, and
Method 3120 that appear in that printed volume are those cited by
USEPA as acceptable for use. USEPA later added Method 3111
B, Method 3113 B, and Method 3120 B from the 21st edition of
Standard Methods as approved alternative methods in appendix A
to subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed.
Reg. 31616).
B)
USEPA Environmental Metals Methods.
i)
Method 200.7; or
ii)
Method 200.9.
C)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
3)
Manganese.
A)
Standard Methods.
i)
Method 3111 B, 18th,
or 19th, or 21st ed.;
ii)
Method 3113 B, 18th, or 19th, or 21st ed.; or
iii)
Method 3120 B, 18th, 19th, or 20th, or 21st ed.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for manganese in the table at 40 CFR
143.4(b) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 B, Method 3113 B, and
Method 3120 B (as approved in 1999). The Board has instead
cited to the 21st edition of Standard Methods for the Examination
of Water and Wastewater (the printed version of Standard
Methods), since the versions of Method 3111, Method 3113, and
Method 3120 that appear in that printed volume are those cited by

208
USEPA as acceptable for use. USEPA later added Method 3111
B, Method 3113 B, and Method 3120 B from the 21st edition of
Standard Methods as approved alternative methods in appendix A
to subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed.
Reg. 31616).
B)
USEPA Environmental Metals Methods.
i)
Method 200.7;
ii)
Method 200.8; or
iii)
Method 200.9.
C)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
4)
Zinc.
A)
Standard Methods.
i)
Method 3111 B, 18th, or 19th, or 21st ed.; or
ii)
Method 3120 B, 18th, 19th, or 20th, or 21st ed.
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for zinc in the table at 40 CFR
143.4(b) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 3111 B and Method 3120 B
(as approved in 1999). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water and
Wastewater (the printed version of Standard Methods), since the
versions of Method 3111 and Method 3120 that appear in that
printed volume are those cited by USEPA as acceptable for use.
USEPA later added Method 3111 B, Method 3113 B, and Method
3120 B from the 21st edition of Standard Methods as approved
alternative methods in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
USEPA Environmental Metals Methods.
i)
Method 200.7; or

209
ii)
Method 200.8.
C)
Axially viewed inductively coupled plasma-atomic emission
spectrometry (AVICP-AES): USEPA Methods: Method 200.5.
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
BOARD NOTE: The provisions of subsections (a) through (f) of this Section derive from 40
CFR 141.23(l) through (p) (2002) (2007). Subsections (f)(2) through (f)(4) of this Section relate
exclusively to additional State requirements. The Board retained subsection (f) of this Section to
set forth methods for the inorganic contaminants for which there is a State-only MCL. The
methods specified are those set forth in 40 CFR 143.4(b) (2002) (2007) and appendix A to 40
CFR 141, as added at 73 Fed. Reg. 31616 (June 3, 2008), for secondary MCLs.
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART O: ORGANIC MONITORING AND ANALYTICAL
REQUIREMENTS
Section 611.645
Analytical Methods for Organic Chemical Contaminants
Analysis for the Section 611.311(a) VOCs under Section 611.646; the Section 611.311(c) SOCs
under Section 611.648; the Section 611.310 old MCLs under Section 611.641; and for THMs,
TTHMs, and TTHM potential must be conducted using the methods listed in this Section or by
equivalent alternative methods as approved by the Agency pursuant to Section 611.480. All
methods are from USEPA Organic Methods, unless otherwise indicated. All methods are
incorporated by reference in Section 611.102. Other required analytical test procedures germane
to the conduct of these analyses are contained in the USEPA document, “Technical Notes of
Drinking Water Methods,” incorporated by reference in Section 611.102.
Volatile Organic Chemical Contaminants (VOCs).
Contaminant
Analytical Methods
Benzene
502.2, 524.2
Carbon tetrachloride
502.2, 524.2, 551.1
Chlorobenzene
502.2, 524.2
1,2-Dichlorobenzene
502.2, 524.2
1,4-Dichlorobenzene
502.2, 524.2
1,2-Dichloroethane
502.2, 524.2
cis-Dichloroethylene
502.2, 524.2
trans-Dichloroethylene
502.2, 524.2
Dichloromethane
502.2, 524.2
1,2-Dichloropropane
502.2, 524.2

210
Ethylbenzene
502.2, 524.2
Styrene
502.2, 524.2
Tetrachloroethylene
502.2, 524.2, 551.1
1,1,1-Trichloroethane
502.2, 524.2, 551.1
Trichloroethylene
502.2, 524.2, 551.1
Toluene
502.2, 524.2
1,2,4-Trichlorobenzene
502.2, 524.2
1,1-Dichloroethylene
502.2, 524.2
1,1,2-Trichloroethane
502.2, 524.2
Vinyl chloride
502.2, 524.2
Xylenes (total)
502.2, 524.2
Synthetic Organic Chemical Contaminants (SOCs).
Contaminant
Analytical Methods
2,3,7,8-Tetrachlorodibenzodioxin (2,3,7,8-TCDD or
dioxin)
Dioxin and Furan Method
1613
2,4-D
515.2, 555, 515.1, 515.3,
OGWDW Methods,
Method 515.4, ASTM
Method D5317-93 or
D5317-98
2,4,5-TP (Silvex)
515.2, 555, 515.1, 515.3,
OGWDW Methods,
Method 515.4, ASTM
Method D5317-93 or
D5317-98
Alachlor
505
*1
, 507, 508.1, 525.2,
551.1
Atrazine
505
*1
, 507, 508.1, 525.2,
551.1, Syngenta AG-625
2
Benzo(a)pyrene
525.2, 550, 550.1
Carbofuran
531.1, OGWDW Methods,
Method 531.2, Standard
Methods, 18th ed.
Supplement, 19th ed., or
20th ed.: Method 6610 or
Standard Methods 21st ed.
or Standard Methods
Online: Method 6610 B
Chlordane
505, 508, 508.1, 525.2
Dalapon
515.1, 552.1, 552.2, 515.3,
OGWDW Methods,
Method 515.4, OGWDW
Methods, Method 552.3
Di(2-ethylhexyl)adipate
506, 525.2

211
Di(2-ethylhexyl)phthalate
506, 525.2
Dibromochloropropane (DBCP)
504.1, 551.1
Dinoseb
515.1, 515.2, 515.3,
OGWDW Methods,
Method 515.4, 555
Diquat
549.1
Endothall
548.1
Endrin
505, 508, 508.1, 525.2,
551.1
Ethylene Dibromide (EDB)
504.1, 551.1
Glyphosate
547, Standard Methods,
18th ed., 19th ed., or 20th
ed.: Method 6651
Heptachlor
505, 508, 508.1, 525.2,
551.1
Heptachlor Epoxide
505, 508, 508.1, 525.2,
551.1
Hexachlorobenzene
505, 508, 508.1, 525.2,
551.1
Hexachlorocyclopentadiene
505, 508, 508.1, 525.2,
551.1
Lindane
505, 508, 508.1, 525.2,
551.1
Methoxychlor
505, 508, 508.1, 525.2,
551.1
Oxamyl
531.1, OGWDW Methods,
Method 531.2, Standard
Methods, 18th ed.
Supplement, 19th ed., or
20th ed.: Method 6610 or
Standard Methods 21st ed.
or Standard Methods
Online: Method 6610 B
PCBs (measured for compliance purposes as
decchlorobiphenyl)
508A
PCBs (qualitatively identified as Aroclors)
505, 508, 508.1, 525.2
Pentachlorophenol
515.1, 515.2, 525.2, 555,
515.3, OGWDW Methods,
Method 515.4, ASTM
Method D5317-93 or
D5317-98(2003)
Picloram
515.1, 515.2, 555, 515.3,
OGWDW Methods,
Method 515.4, ASTM
Method D5317-93 or
D5317-98(2003)

212
Simazine
505
*1
, 507, 508.1, 525.2,
551.2
Toxaphene
505, 508, 525.2, 508.1
Total Trihalomethanes (TTHMs).
Contaminant
Analytical Methods
Total Trihalomethanes (TTHMs), Trihalomethanes
(THMs), and Maximum Total Trihalomethane Potential
502.2, 524.2, 551.1
State-Only MCLs (for which a method is not listed above).
Contaminant
Analytical Methods
Aldrin
505, 508, 508.1, 525.2
DDT
505, 508
Dieldrin
505, 508, 508.1, 525.2
*
1
denotes that, for the particular contaminant, a nitrogen-phosphorus detector should be
substituted for the electron capture detector in method 505 (or another approved method should
be used) to determine alachlor, atrazine, and simazine if lower detection limits are required.
2
denotes that Syngenta Method AG-625 may not be used for the analysis of atrazine in any
system where chlorine dioxide is used for drinking water treatment. In samples from all other
systems, any result for atrazine generated by Syngenta Method AG–625 that is greater than one-
half the maximum contaminant level (MCL) (in other words, greater than 0.0015mg/ℓ or 1.5
μg/ℓ)
must be confirmed using another approved method for this contaminant and should use
additional volume of the original sample collected for compliance monitoring. In instances
where a result from Syngenta Method AG–625 triggers such confirmatory testing, the
confirmatory result is to be used to determine compliance.
BOARD NOTE: Derived from 40 CFR 141.24(e) (2005)
(2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART Q: RADIOLOGICAL MONITORING AND ANALYTICAL
REQUIREMENTS
Section 611.720
Analytical Methods
a)
The methods specified below, or alternative methods approved by the Agency
pursuant to Section 611.480, incorporated by reference in Section 611.102, are to
be used to determine compliance with Section 611.330, except in cases where
alternative methods have been approved in accordance with Section 611.480.
1)
Gross Alpha and Beta.

213
A)
Standard Methods.
i)
Method 302, 13th ed.; or
ii)
Method 7110 B, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for gross alpha and beta
by evaporation in the table at corresponding 40 CFR
141.25(a) to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 7110 B (as approved
in 2000). The Board has instead cited to the 21st edition of
Standard Methods for the Examination of Water and
Wastewater (the printed version of Standard Methods),
since the version of Method 7110 that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 7110 B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
USEPA Interim Radiochemical Methods: page 1;
C)
USEPA Radioactivity Methods: Method 900.0;
D)
USEPA Radiochemical Analyses: page 1;
E)
USEPA Radiochemistry Methods: Method 00-01; or
F)
USGS Methods: Method R-1120-76.
2)
Gross Alpha.
A)
Standard Methods, 18th, 19th, or
20th, or 21st ed.: Method 7110
C; or
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for gross alpha by coprecipitation in
the table at corresponding 40 CFR 141.25(a) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
7110 C (as approved in 2000). The Board has instead cited to the
21st edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods), since
the version of Method 7110 that appears in that printed volume is
that cited by USEPA as acceptable for use. USEPA later added

214
Method 7110 C from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of 40 CFR
141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
USEPA Radiochemistry Methods: Method 00-02.
3)
Radium-226.
A)
ASTM Methods.
i)
Method D2460-90 D2460-97; or
ii)
Method D3454-97;
B)
New York Radium Method;
C)
Standard Methods.
i)
Method 304, 13th ed.;
ii)
Method 305, 13th ed.;
iii)
Method 7500-Ra B, 17th, 18th, 19th, or 20th, or 21st ed.; or
iv)
Method 7500-Ra C, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for radium-226 in the table at
corresponding 40 CFR 141.25(a) to allow the use of Standard
Methods Online (at www.standardmethods.org), Method 7500-Ra
B and C (as approved in 2000). The Board has instead cited to the
21st edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods), since
the version of Method 7500-Ra that appears in that printed volume
is that cited by USEPA as acceptable for use. USEPA later added
Method 7500-Ra B and C from the 21st edition of Standard
Methods as an approved alternative method in appendix A to
subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
D)
USDOE Manual: Method Ra-04;
E)
USEPA Interim Radiochemical Methods: pages 13 and 16;
F)
USEPA Radioactivity Methods: Methods 903.0, 903.1;

215
G)
USEPA Radiochemical Analyses: page 19;
H)
USEPA Radiochemistry Methods: Methods Ra-03, Ra-04; or
I)
USGS Methods.
i)
Method R-1140-76; or
ii)
Method R-1141-76.
J)
Georgia Radium Method.
4)
Radium-228.
A)
Standard Methods, 17th, 18th, 19th, or 20th, or 21st ed.: Method
7500-Ra D;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entry for radium-228 by radiochemical in the
table at corresponding 40 CFR 141.25(a) to allow the use of
Standard Methods Online (at www.standardmethods.org), Method
7500-Ra D (as approved in 2000). The Board has instead cited to
the 21st edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods), since
the version of Method 7500-Ra that appears in that printed volume
is that cited by USEPA as acceptable for use. USEPA later added
Method 7500-Ra D from the 21st edition of Standard Methods as
an approved alternative method in appendix A to subpart C of 40
CFR 141, added on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
New York Radium Method;
C)
USEPA Interim Radiochemical Methods: page 24;
D)
USEPA Radioactivity Methods: Method 904.0;
E)
USEPA Radiochemical Analyses: page 19;
F)
USEPA Radiochemistry Methods: Method Ra-05;
G)
USGS Methods: Method R-1142-76; or
H)
New Jersey Radium Method.; or
I)
Georgia Radium Method.

216
5)
Uranium.
A)
Standard Methods, 17th, 18th, 19th, or 20th, or 21st ed.: Method
7500-U C;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for uranium by radiochemical and
alpha spectrometry in the table at corresponding 40 CFR 141.25(a)
to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 7500-U C (as approved in
2000). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the version of Method
7500-U that appears in that printed volume is that cited by USEPA
as acceptable for use. USEPA later added Method 7500-U B from
the 21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
B)
Standard Methods, 20th ed.: Method 3125;
C)
ASTM Methods.
i)
Method D2907-97;
ii)
Method D3972-97 or D3972-02;
iii)
Method D5174-97 or D5174-02; or
iv)
Method D5673-03 or Method 5673-05;
BOARD NOTE: USEPA added this method as an approved
alternative method in appendix A to subpart C of 40 CFR 141,
added on June 3, 2008 (at 73 Fed. Reg. 31616).
D)
USEPA Radioactivity Methods: Methods 908.0, 908.1;
E)
USEPA Environmental Metals Methods: Method 200.8;
F)
USEPA Radiochemical Analyses: page 33;
G)
USEPA Radiochemistry Methods: Method 00-07;
H)
USDOE Manual: Method U-02 or U-04; or
I)
USGS Methods.

217
i)
Method R-1180-76;
ii)
Method R-1181-76; or
iii)
Method R-1182-76.
BOARD NOTE: If uranium (U) is determined by mass, a conversion
factor of 0.67 pCi/μg of uranium must be used. This conversion factor is
based on the 1:1 activity ratio of
234
U and
238
U that is characteristic of
naturally occurring uranium.
6)
Radioactive Cesium.
A)
ASTM Methods.
i)
Method D2459-72; or
ii)
Method D3649-91 or D3649-98a;
B)
Standard Methods.
i)
Method 7120, 19th, or 20th, or 21st ed.; or
ii)
Method 7500-Cs B, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for radioactive cesium in the table at
corresponding 40 CFR 141.25(a) to allow the use of Standard
Methods Online (at www.standardmethods.org), Method 7120 (as
approved in 1997) and Method 7500-Cs B (as approved in 2000).
The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the versions of
Method 7120 and Method 7500-Cs that appear in that printed
volume are those cited by USEPA as acceptable for use. USEPA
later added Method 7120 and Method 7500-Cs B from the 21st
edition of Standard Methods as an approved alternative method in
appendix A to subpart C of 40 CFR 141, added on June 3, 2008 (at
73 Fed. Reg. 31616).
C)
USDOE Manual: Method 4.5.2.3;
D)
USEPA Interim Radiochemical Methods: page 4;
E)
USEPA Radioactivity Methods: Methods 901.0, 901.1;

218
F)
USEPA Radiochemical Analyses: page 92; or
G)
USGS Methods.
i)
Method R-1110-76; or
ii)
Method R-1111-76.
7)
Radioactive Iodine.
A)
ASTM Methods.
i)
D3649-91 or D3649-98a; or
ii)
D4785-93 or D4785-98;
B)
Standard Methods.
i)
Method 7120, 19th, or 20th, or 21st ed.;
ii)
Method 7500-I B, 17th, 18th, 19th, or 20th, or 21st ed.;
iii)
Method 7500-I C, 17th, 18th, 19th, or 20th, or 21st ed.; or
iv)
Method 7500-I D, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for radioactive iodine in the table at
corresponding 40 CFR 141.25(a) to allow the use of Standard
Methods Online (at www.standardmethods.org), Method 7120 (as
approved in 1997) and Method 7500-I B, C, and D (as approved in
2000). The Board has instead cited to the 21st edition of Standard
Methods for the Examination of Water and Wastewater (the
printed version of Standard Methods), since the versions of
Method 7120 and Method 7500-I that appear in that printed
volume are those cited by USEPA as acceptable for use. USEPA
later added Method 7500-I B, C, and D from the 21st edition of
Standard Methods as an approved alternative method in appendix
A to subpart C of 40 CFR 141, added on June 3, 2008 (at 73 Fed.
Reg. 31616).
C)
USDOE Manual: Method 4.5.2.3;
D)
USEPA Interim Radiochemical Methods: pages 6, 9;

219
E)
USEPA Radiochemical Analyses: page 92; or
F)
USEPA Radioactivity Methods: Methods 901.1, 902.0.
8)
Radioactive Strontium-89 & 90.
A)
Standard Methods.
i)
Method 303, 13th ed.; or
ii)
Method 7500-Sr B, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for radioactive
strontium in the table at corresponding 40 CFR 141.25(a)
to allow the use of Standard Methods Online (at
www.standardmethods.org), Method 7500-Sr B (as
approved in 2001). The Board has instead cited to the 21st
edition of Standard Methods for the Examination of Water
and Wastewater (the printed version of Standard Methods),
since the version of Method 7500-Sr that appears in that
printed volume is that cited by USEPA as acceptable for
use. USEPA later added Method 7500-Sr B from the 21st
edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added
on June 3, 2008 (at 73 Fed. Reg. 31616).
B)
USDOE Manual.
i)
Method Sr-01; or
ii)
Method Sr-02;
C)
USEPA Interim Radiochemical Methods: page 29;
D)
USEPA Radioactivity Methods: Method 905.0;
E)
USEPA Radiochemical Analyses: page 65;
F)
USEPA Radiochemistry Methods: Method Sr-04; or
G)
USGS Methods: Method R-1160-76.
9)
Tritium.
A)
ASTM Methods: Method D4107-91 or D4107-98
;

220
B)
Standard Methods.
i)
Method 306, 13th ed.; or
ii)
Method 7500-
3
H B, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg.
11200), USEPA amended the entry for tritium in the table
at corresponding 40 CFR 141.25(a) to allow the use of
Standard Methods Online (at www.standardmethods.org),
Method 7500-
3
H B (as approved in 2000). The Board has
instead cited to the 21st edition of Standard Methods for
the Examination of Water and Wastewater (the printed
version of Standard Methods), since the version of Method
7500-
3
H that appears in that printed volume is that cited by
USEPA as acceptable for use. USEPA later added Method
7500-
3
H B from the 21st edition of Standard Methods as an
approved alternative method in appendix A to subpart C of
40 CFR 141, added on June 3, 2008 (at 73 Fed. Reg.
31616).
C)
USEPA Interim Radiochemical Methods: page 34;
D)
USEPA Radioactivity Methods: Method 906.0;
E)
USEPA Radiochemical Analyses: page 87;
F)
USEPA Radiochemistry Methods: Method H-02; or
G)
USGS Methods: Method R-1171-76.
10)
Gamma Emitters.
A)
ASTM Methods.
i)
Method D3649-91 or D3649-98a; or
ii)
Method D4785-93 or D4785-00a
;
B)
Standard Methods.
i)
Method 7120, 19th, or 20th, or 21st ed.;
ii)
Method 7500-Cs B, 17th, 18th, 19th, or
20th, or 21st ed.; or

221
iii)
Method 7500-I B, 17th, 18th, 19th, or 20th, or 21st ed.;
BOARD NOTE: On March 12, 2007 (at 72 Fed. Reg. 11200),
USEPA amended the entries for gamma emitters in the table at
corresponding 40 CFR 141.25(a) to allow the use of Standard
Methods Online (at www.standardmethods.org), Method 7120 (as
approved in 1997), Method 7500-Cs B (as approved in 2000), and
Method 7500-I B (as approved in 2000). The Board has instead
cited to the 21st edition of Standard Methods for the Examination
of Water and Wastewater (the printed version of Standard
Methods), since the versions of Method 7120, Method 7500-Cs,
and Method 7500-I that appear in that printed volume are those
cited by USEPA as acceptable for use. USEPA later added
Method 7150, Method 7500-Cs B, and Method 7500-I B from the
21st edition of Standard Methods as an approved alternative
method in appendix A to subpart C of 40 CFR 141, added on June
3, 2008 (at 73 Fed. Reg. 31616).
C)
USDOE Manual: Method Ga-01-R;
D)
USEPA Radioactivity Methods: Methods 901.0, 901.1, or 902.0;
E)
USEPA Radiochemical Analyses: page 92; or
F)
USGS Methods: Method R-1110-76.
b)
When the identification and measurement of radionuclides other than those listed
in subsection (a) of this Section are required, the following methods, incorporated
by reference in Section 611.102, are to be used, except in cases where alternative
methods have been approved in accordance with Section 611.480:
1)
“Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous
Solutions,” available from NTIS.
2)
HASL Procedure Manual, HASL 300, available from ERDA Health and
Safety Laboratory.
c)
For the purpose of monitoring radioactivity concentrations in drinking water, the
required sensitivity of the radioanalysis is defined in terms of a detection limit.
The detection limit must be that concentration which can be counted with a
precision of plus or minus 100 percent at the 95 percent confidence level (1.96σ,
where
σ
is the standard deviation of the net counting rate of the sample).
1)
To determine compliance with Section 611.330(b), (c), and (e), the
detection limit must not exceed the concentrations set forth in the
following table:

222
Contaminant
Detection Limit
Gross alpha particle
activity
3 pCi/ℓ
Radium-226
1 pCi/ℓ
Radium-228
1 pCi/ℓ
Uranium
1 μg/ℓ
BOARD NOTE: Derived from 40 CFR 141.25(c) Table B (2005) (2007).
2)
To determine compliance with Section 611.330(d), the detection limits
must not exceed the concentrations listed in the following table:
Radionuclide
Detection Limit
Tritium
1,000 pCi/ℓ
Strontium-89
10 pCi/ℓ
Strontium-90
2 pCi/ℓ
Iodine-131
1 pCi/ℓ
Cesium-134
10 pCi/ℓ
Gross beta
4 pCi/ℓ
Other radionuclides
1/10 of applicable limit
BOARD NOTE: Derived from 40 CFR 141.25(c) Table C (2005) (2007).
d)
To judge compliance with the MCLs listed in Section 611.330, averages of data
must be used and must be rounded to the same number of significant figures as
the MCL for the substance in question.
BOARD NOTE: Derived from 40 CFR 141.25 (2005) (2007) and appendix A to 40 CFR 141, as
added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART S: GROUNDWATER RULE
Section 611.801
Sanitary Surveys for GWS Suppliers
a)
A GWS supplier must provide the Agency, at the Agency’s request, any existing
information that will enable the Agency to conduct a sanitary survey.
b)
For the purposes of this Subpart S, a “sanitary survey,” as conducted by the
Agency, includes but is not limited to, an onsite review of the delineated WHPAs
(identifying sources of contamination within the WHPAs and evaluations or
of
the hydrogeologic sensitivity of the delineated WHPAs conducted under source
water assessments or utilizing other relevant information where available),
facilities, equipment, operation, maintenance, and monitoring compliance of a

223
public water system to evaluate the adequacy of the system, its sources and
operations and the distribution of safe drinking water.
c)
The sanitary survey must include an evaluation of the applicable components
listed in subsections (c)(1) through (c)(8) of this Section:
1)
Source,
2)
Treatment,
3)
Distribution system,
4)
Finished water storage,
5)
Pumps, pump facilities, and controls,
6)
Monitoring, reporting, and data verification,
7)
System management and operation, and
8)
Operator compliance with Agency requirements.
d)
The Agency must repeat the sanitary survey as follows:
1)
The Agency must conduct a sanitary survey that addresses the eight
sanitary survey components listed in subsection (c) of this Section no less
frequently than every three years for a CWS supplier, except as provided
in subsection (d)(3) of this Section, and every five years for a non-CWS
supplier. The Agency may conduct more frequent sanitary surveys for
any supplier. The initial sanitary survey for each community water system
must be conducted before December 31, 2012, unless the supplier meets
the requirements of subsection (d)(3) of this Section. The initial sanitary
survey for each CWS supplier that meets the requirements of subsection
(d)(3) of this Section and for each non-CWS supplier must be conducted
before December 31, 2014. The sanitary survey must include an
evaluation of each of the elements set forth in subsection (c) of this
Section, as applicable.
2)
The Agency may use a phased review process to meet the requirements of
subsection (d)(1) of this Section if all the applicable elements of
subsection (c) of this Section are evaluated within the required interval.
3)
The Agency may conduct sanitary surveys once every five years for
community water systems under any of the following circumstances:
A)
If the system either provides at least 4-log treatment of viruses

224
(using inactivation, removal, or an Agency-approved combination
of 4-log inactivation and removal) before or at the first customer
for all its groundwater sources; or
B)
If the supplier has an outstanding performance record, as
determined by the Agency and documented in previous sanitary
surveys, and the supplier has no history of total coliform MCL or
monitoring violations under Sections 611.521 through 611.527
since the last sanitary survey.
4)
This subsection (d)(4) corresponds with 40 CFR 142.16(o)(2)(iv), which
imposes requirements for describing the elements of the State’s regulatory
system. This statement maintains structural consistency with the
corresponding federal provision.
5)
The Agency must provide a GWS supplier with written notice by a SEP
issued pursuant to Section 611.110 that describes any significant
deficiency which it has found no later than 30 days after the Agency has
identified the significant deficiency. The notice may specify corrective
actions and deadlines for completion of corrective actions. The Agency
may provide the written notice at the time of the sanitary survey.
BOARD NOTE: Subsections (a) through (c) are derived from 40 CFR 141.401, as added at 71
Fed. Reg. 65574 (Nov. 8, 2006) (2007). Subsection (d) is derived from 40 CFR 142.16(o)(2), as
added at 71 Fed. Reg. 65574 (Nov. 8, 2006) (2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.802
Groundwater Source Microbial Monitoring and Analytical Methods
a)
Triggered source water monitoring.
1)
General requirements. A GWS supplier must conduct triggered source
water monitoring if the following conditions exist:
A)
The supplier does not provide at least 4-log treatment of viruses
(using inactivation, removal, or an Agency-approved combination
of 4-log virus inactivation and removal) before or at the first
customer for each groundwater source; and
B)
The supplier is notified that a sample collected pursuant to Section
611.521 is total coliform-positive, and the sample is not
invalidated by the Agency pursuant to Section 611.523.
2)
Sampling requirements. A GWS supplier must collect, within 24 hours
after notification of the total coliform-positive sample, at least one

225
groundwater source sample from each groundwater source in use at the
time the total coliform-positive sample was collected pursuant to Section
611.521, except as provided in subsection (a)(2)(B) of this Section.
A)
The Agency may, by a SEP issued pursuant to Section 611.110,
extend the 24-hour time limit on a case-by-case basis if it
determines that the supplier cannot collect the groundwater source
water sample within 24 hours due to circumstances beyond the
supplier’s control. In the case of an extension, the Agency must
specify how much time the supplier has to collect the sample.
B)
If approved by the Agency, a supplier with more than one
groundwater source may meet the requirements of this subsection
(a)(2) by sampling a representative groundwater source or sources.
If directed by the Agency by a SEP issued pursuant to Section
611.110, the supplier must submit for Agency approval a triggered
source water monitoring plan that identifies one or more
groundwater sources that are representative of each monitoring site
in the system’s sample siting plan pursuant to Section 611.521 and
that the system intends to use for representative sampling pursuant
to this subsection (a).
C)
A GWS supplier that serves 1,000 or fewer people may use a
repeat sample collected from a groundwater source to meet both
the requirements of Section 611.522 and to satisfy the monitoring
requirements of subsection (a)(2) of this Section for that
groundwater source only if the Agency approves the use of E. coli
as a fecal indicator for source water monitoring pursuant to this
subsection (a) by a SEP issued pursuant to Section 611.110. If the
repeat sample collected from the groundwater source is E.coli
positive, the system must comply with subsection (a)(3) of this
Section.
3)
Additional requirements. If the Agency does not require corrective action
pursuant to Section 611.803(a)(2) for a fecal indicator-positive source
water sample collected pursuant to subsection (a)(2) of this Section that is
not invalidated pursuant to subsection (d) of this Section, the system must
collect five additional source water samples from the same source within
24 hours after being notified of the fecal indicator-positive sample.
4)
Consecutive and wholesale systems.
A)
In addition to the other requirements of this subsection (a), a
consecutive GWS supplier that has a total coliform-positive
sample collected pursuant to Section 611.521 must notify the
wholesale systems within 24 hours after being notified of the total

226
coliform-positive sample.
B)
In addition to the other requirements of this subsection (a), a
wholesale GWS supplier must comply with the following
requirements:
i)
A wholesale GWS supplier that receives notice from a
consecutive system it serves that a sample collected
pursuant to Section Section 611.521 is total coliform-
positive must, within 24 hours after being notified, collect a
sample from its groundwater sources pursuant to subsection
(a)(2) of this Section and analyze it for a fecal indicator
pursuant to subsection (c) of this Section.
ii)
If the sample collected pursuant to subsection (a)(4)(B)(i)
of this section is fecal indicator-positive, the wholesale
GWS supplier must notify all consecutive systems served
by that groundwater source of the fecal indicator source
water positive within 24 hours of being notified of the
groundwater source sample monitoring result and must
meet the requirements of subsection (a)(3) of this Section.
5)
Exceptions to the triggered source water monitoring requirements. A
GWS supplier is not required to comply with the source water monitoring
requirements of subsection (a) of this Section if either of the following
conditions exists:
A)
The Agency determines, and documents in writing, by a SEP
issued pursuant to Section 611.110, that the total coliform-positive
sample collected pursuant to Section 611.521 is caused by a
distribution system deficiency; or
B)
The total coliform-positive sample collected pursuant to Section
611.521 is collected at a location that meets Agency criteria for
distribution system conditions that will cause total coliform-
positive samples.
b)
Assessment source water monitoring. If directed by the Agency by a SEP issued
pursuant to Section 611.110, a GWS supplier must conduct assessment source
water monitoring that meets Agency-determined requirements for such
monitoring. A GWS supplier conducting assessment source water monitoring
may use a triggered source water sample collected pursuant to subsection (a)(2) of
this Section to meet the requirements of subsection (b) of this Section. Agency-
determined assessment source water monitoring requirements may include the
following:

227
1)
Collection of a total of 12 groundwater source samples that represent each
month the system provides groundwater to the public;
2)
Collection of samples from each well, unless the system obtains written
Agency approval to conduct monitoring at one or more wells within the
GWS that are representative of multiple wells used by that system and
which draw water from the same hydrogeologic setting;
3)
Collection of a standard sample volume of at least 100 mℓ for fecal
indicator analysis, regardless of the fecal indicator or analytical method
used;
4)
Analysis of all groundwater source samples using one of the analytical
methods listed in subsection (c)(2) of this Section for the presence of E.
coli, enterococci, or coliphage;
5)
Collection of groundwater source samples at a location prior to any
treatment of the groundwater source unless the Agency approves a
sampling location after treatment; and
6)
Collection of groundwater source samples at the well itself, unless the
system’s configuration does not allow for sampling at the well itself and
the Agency approves an alternate sampling location by a SEP issued
pursuant to Section 611.110 that is representative of the water quality of
that well.
c)
Analytical methods.
1)
A GWS supplier subject to the source water monitoring requirements of
subsection (a) of this Section must collect a standard sample volume of at
least 100 mℓ for fecal indicator analysis, regardless of the fecal indicator
or analytical method used.
2)
A GWS supplier must analyze all groundwater source samples collected
pursuant to subsection (a) of this Section using one of the analytical
methods listed in subsections (c)(2)(A) through (c)(2)(C) of this Section,
or alternative methods approved by the Agency pursuant to Section
611.480, subject to the limitations of subsection (c)(2)(D) of this Section,
for the presence of E. coli, enterococci, or coliphage:
A)
E. coli:
i)
Autoanalysis Colilert System, Standard Methods, 20th or
21st ed., Method 9223 B.
ii)
Colisure Test, Standard Methods, 20th or 21st
ed., Method

228
9223 B.
iii)
Membrane Filter Method with MI Agar, USEPA Method
1604.
iv)
m-ColiBlue24 Test.
v)
E*Colite Test.
vi)
EC–MUG, Standard Methods, 20th ed., Method 9221 F.
vii)
NA–MUG, Standard Methods, 20th ed., Method 9222 G.
viii)
Colilert-18, Standard Methods, 20th or 21st ed., Method
9222 G.
BOARD NOTE: EC–MUG (Standard Methods, Method 9221F)
or NA–MUG (Standard Methods, Method 9222G) can be used for
E. coli testing step, as described in Section 611.526(a) or (b) after
use of Standard Methods, Method 9221 B, 9221 D, 9222 B, or
9222 C. On June 3, 2008 (at 73 Fed. Reg. 31616), USEPA added
appendix A to subpart C of 40 CFR 141 of 40 CFR 141, which
authorized alternative methods to those listed for E. coli by
Colilert and Colisure and added Colilert-18 in the table at
corresponding 40 CFR 141.402(c)(2) to allow the use of the 21st
edition of Standard Methods for the Examination of Water and
Wastewater and Standard Methods Online (at
www.standardmethods.org), Method 9223 B (as approved in
1997). The Board has instead cited only to the 21st edition of
Standard Methods for the Examination of Water and Wastewater
(the printed version of Standard Methods), since the version of
Method 9223 B that appears in that printed volume is that cited by
USEPA as acceptable for use. USEPA also added the version of
Method 9223 B that appears in the 20th edition of Standard
Methods as to Colilert-18.
B)
Enterococci:
i)
Multiple-Tube Technique, Standard Methods, 20th ed.,
Method 9230 B or Standard Methods Online, Method 9230
B.
BOARD NOTE: On June 3, 2008 (at 73 Fed. Reg. 31616),
USEPA added appendix A to subpart C of 40 CFR 141 of
40 CFR 141, which authorized alternative methods to those
listed for enterococci by multiple-tube technique at

229
corresponding 40 CFR 141.402(c)(2) to allow the use of
the Standard Methods Online (at
www.standardmethods.org), Method 9230 B (as approved
in 2004).
ii)
Membrane Filter Technique, Standard Methods, 20th ed.,
Method 9230 C, and USEPA Method 1600.
BOARD NOTE: The holding time and temperature for
groundwater samples are specified in subsection (c)(2)(D)
of this Section, rather than as specified in Section 8 of
USEPA Method 1600.
iii)
Enterolert.
BOARD NOTE: Medium is available through IDEXX
Laboratories, Inc., at the address set forth in Section
611.102(b). Preparation and use of the medium must be as
set forth in the article that embodies the method as
incorporated by reference in Section 611.102(b).
C)
Coliphage:
i)
Two-Step Enrichment Presence-Absence Procedure,
USEPA Method 1601.
ii)
Single Agar Layer Procedure, USEPA Method 1602.
D)
Limitation on methods use. The time from sample collection to
initiation of analysis may not exceed 30 hours. The GWS supplier
is encouraged but is not required to hold samples below 10°C
during transit.
d)
Invalidation of a fecal indicator-positive groundwater source sample.
1)
A GWS supplier may obtain Agency invalidation of a fecal indicator-
positive groundwater source sample collected pursuant to subsection (a) of
this Section only under either of the following conditions:
A)
The supplier provides the Agency with written notice from the
laboratory that improper sample analysis occurred; or
B)
The Agency determines and documents in writing by a SEP issued
pursuant to Section 611.110 that there is substantial evidence that a
fecal indicator-positive groundwater source sample is not related to
source water quality.

230
2)
If the Agency invalidates a fecal indicator-positive groundwater source
sample, the GWS supplier must collect another source water sample
pursuant to subsection (a) of this Section within 24 hours after being
notified by the Agency of its invalidation decision, and the supplier must
have it analyzed for the same fecal indicator using the analytical methods
in subsection (c) of this Section. The Agency may extend the 24-hour
time limit on a case-by-case basis if the supplier cannot collect the source
water sample within 24 hours due to circumstances beyond its control. In
the case of an extension, the Agency must specify how much time the
system has to collect the sample.
e)
Sampling location.
1)
Any groundwater source sample required pursuant to subsection (a) of this
Section must be collected at a location prior to any treatment of the
groundwater source unless the Agency approves a sampling location after
treatment.
2)
If the supplier’s system configuration does not allow for sampling at the
well itself, it may collect a sample at an Agency-approved location to meet
the requirements of subsection (a) of this Section if the sample is
representative of the water quality of that well.
f)
New sources. If directed by the Agency by a SEP issued pursuant to Section
611.110, a GWS supplier that places a new groundwater source into service after
November 30, 2009 must conduct assessment source water monitoring pursuant
to subsection (b) of this Section. If directed by the SEP, the system must begin
monitoring before the groundwater source is used to provide water to the public.
g)
Public Notification. A GWS supplier with a groundwater source sample collected
pursuant to subsection (a) or (b) of this Section that is fecal indicator-positive and
which is not invalidated pursuant to subsection (d) of this Section, including a
consecutive system supplier served by the groundwater source, must conduct
public notification pursuant to Section 611.902.
h)
Monitoring Violations. A failure to meet the requirements of subsections (a)
through (f) of this Section is a monitoring violation that requires the GWS
supplier to provide public notification pursuant to Section 611.904.
BOARD NOTE: Derived from 40 CFR 141.402, as added at 71 Fed. Reg. 65574 (Nov. 8, 2006)
(2007) and appendix A to 40 CFR 141, as added at 73 Fed. Reg. 31616 (June 3, 2008)
.
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)

231
SUBPART U: CONSUMER CONFIDENCE REPORTS
Section 611.884
Required Additional Health Information
a)
All reports must prominently display the following language: “Some people may
be more vulnerable to contaminants in drinking water than the general population.
Immuno-compromised persons such as persons with cancer undergoing
chemotherapy, persons who have undergone organ transplants, people with
HIV/AIDS or other immune system disorders, some elderly, and infants can be
particularly at risk from infections. These people should seek advice about drinking
water from their health care providers. USEPA or Centers for Disease Control and
Prevention guidelines on appropriate means to lessen the risk of infection by
Cryptosporidium and other microbial contaminants are available from the USEPA
Safe Drinking Water Hotline (800-426-4791).”
b)
A supplier that detects arsenic above 0.005 mg/ℓ and up to and including 0.010
mg/ℓ must do the following:
1)
The supplier must include in its report a short informational statement about
arsenic, using the following language: “While your drinking water meets
USEPA’s standard for arsenic, it does contain low levels of arsenic.
USEPA’s standard balances the current understanding of arsenic’s
possible health effects against the costs of removing arsenic from drinking
water. USEPA continues to research the health effects of low levels of
arsenic, which is a naturally-occurring mineral known to cause cancer in
humans at high concentrations and is linked to other health effects such as
skin damage and circulatory problems.”; or
2)
The supplier may write its own educational statement, but only in
consultation with the Agency.
c)
A supplier that detects nitrate at levels above 5 mg/ℓ, but below the MCL, must do
the following:
1)
The supplier must include a short informational statement about the impacts
of nitrate on children, using the following language: “Nitrate in drinking
water at levels above 10 ppm is a health risk for infants of less than six
months of age. High nitrate levels in drinking water can cause blue baby
syndrome. Nitrate levels may rise quickly for short periods of time because
of rainfall or agricultural activity. If you are caring for an infant you should
ask advice from your health care provider”; or
2)
The CWS supplier may write its own educational statement, but only in
consultation with the Agency.
d)
A CWS supplier that detects lead above the action level in more than five percent,

232
and up to and including ten percent, of homes sampled must do the following:
d)
Every report must include the following lead-specific information:
1)
The CWS supplier must include a short informational statement about the
special impact of lead on children, using the following language: “Infants
and young children are typically more vulnerable to lead in drinking water
than the general population. It is possible that lead levels at your home may
be higher than at other homes in the community as a result of materials used
in your home’s plumbing. If you are concerned about elevated lead levels in
your home’s water, you may wish to have your water tested and flush your
tap for 30 seconds to two minutes before using tap water. Additional
information is available from the USEPA Safe Drinking Water Hotline
(800-426-4791)”; or
1)
A short informational statement about lead in drinking water and its
effects on children. The statement must include the following
information:
If present, elevated levels of lead can cause serious health
problems, especially for pregnant women and young children.
Lead in drinking water is primarily from materials and components
associated with service lines and home plumbing. [NAME OF
SUPPLIER] is responsible for providing high quality drinking
water, but cannot control the variety of materials used in plumbing
components. When your water has been sitting for several hours,
you can minimize the potential for lead exposure by flushing your
tap for 30 seconds to two minutes before using water for drinking
or cooking. If you are concerned about lead in your water, you
may wish to have your water tested. Information on lead in
drinking water, testing methods, and steps you can take to
minimize exposure is available from the Safe Drinking Water
Hotline or at
http://www.epa.gov/safewater/lead.
2)
The CWS supplier may write its own educational statement, but only in
consultation with the Agency.
2)
A supplier may write its own educational statement, but only in
consultation with the Agency.
e)
A CWS supplier that detects TTHM above 0.080 mg/ℓ, but below the MCL in
Section 611.312, as an annual average, monitored and calculated under the
provisions of former Section 611.680, must include the health effects language
prescribed by Appendix A of this Part.
f)
Until January 22, 2006, a CWS supplier that detects arsenic above 0.010 mg/ℓ and

233
up to and including 0.05 mg/ℓ must include the arsenic health effects language
prescribed by Appendix A to this Part.
BOARD NOTE: Derived from 40 CFR 141.154 (2003) (2007), as amended at 72 Fed. Reg.
57782 (October 10, 2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART W: INITIAL DISTRIBUTION SYSTEM EVALUATIONS
Section 611.920
General Requirements
a)
USEPA has designated that the requirements of this Subpart W constitute
National Primary Drinking Water Regulations. The regulations in this Subpart W
establish monitoring and other requirements for identifying Subpart Y compliance
monitoring locations for determining compliance with maximum contaminant
levels for TTHMs and HAA5. The supplier must use an initial distribution
system evaluation (IDSE) to determine the locations in its distribution system that
are representative of high TTHM and HAA5 concentrations throughout the
supplier’s distribution system. An IDSE is used in conjunction with, but separate
from, Subpart I compliance monitoring, to identify and select Subpart Y
compliance monitoring locations.
b)
Applicability. A supplier is subject to the requirements of this Subpart W if it
fulfills any of the following conditions:
1)
The supplier owns or operates a community water system that uses a
primary or residual disinfectant other than ultraviolet light;
2)
The supplier delivers water that has been treated with a primary or
residual disinfectant other than ultraviolet light; or
3)
The supplier owns or operates a non-transient non-community water
system that serves at least 10,000 people, and it either uses a primary or
residual disinfectant other than ultraviolet light, or it delivers water that
has been treated with a primary or residual disinfectant other than
ultraviolet light.
c)
Schedule. A supplier must comply with the requirements of this Subpart W on
the schedule provided in subsection (c)(1) of this Section based on its system
type, as set forth in the applicable of subsections (c)(1)(A) through (c)(1)(D)
(c)(1)(E) of this Section, subject to the conditions of subsections (c)(1)(E)
(c)(1)(F) through (c)(1)(G) (c)(1)(H) of this Section:
1)
Compliance dates.

234
A)
A supplier that is not part of a combined distribution system, or a
supplier that serves the largest population in a combined
distribution system, and which serves a population of 100,000 or
more persons must either have submitted its standard monitoring
plan, its system-specific study plan, or its 40/30 certification or
must have obtained or have been subject to a very small system
waiver before October 1, 2006. The supplier must further
complete its standard monitoring or system-specific study before
September 30, 2008 and submit its IDSE report to the Agency
before January 1, 2009.
B)
A supplier that is not part of a combined distribution system, or a
supplier that serves the largest population in a combined
distribution system, and which serves a population of 50,000 to
99,999 persons must either have submitted its standard monitoring
plan, its system-specific study plan, or its 40/30 certification or
must have obtained or have been subject to a very small system
waiver before April 1, 2007. The supplier must further complete
its standard monitoring or system-specific study before March 31,
2009 and submit its IDSE report to the Agency before July 1,
2009.
C)
A supplier that is not part of a combined distribution system, or a
supplier that serves the largest population in a combined
distribution system, and which serves a population of 10,000 to
49,999 persons must submit its standard monitoring plan, its
system-specific study plan, or its 40/30 certification or must obtain
or be subject to a very small system waiver before October 1,
2007. The supplier must further complete its standard monitoring
or system-specific study before September 30, 2009 and submit its
IDSE report to the Agency before January 1, 2010.
D)
A supplier that is not part of a combined distribution system, or a
supplier that serves the largest population in a combined
distribution system, and which serves a population of fewer than
10,000 persons (and which is a CWS) must submit its standard
monitoring plan, its system-specific study plan, or its 40/30
certification or must obtain or be subject to a very small system
waiver before April 1, 2008. The supplier must further complete
its standard monitoring or system-specific study before March 31,
2010 and submit its IDSE report to the Agency before July 1,
2010.
E)
A supplier that is part of a combined distribution system which
does not serve the largest population in the combined system,
which is a wholesale system supplier or a consecutive system

235
supplier, must submit its standard monitoring plan, its system-
specific study plan, or its 40/30 certification or must obtain or be
subject to a very small system waiver; must further complete its
standard monitoring or system-specific study; and submit its IDSE
report to the Agency at the same time as the supplier in the
combined system that has the earliest compliance date.
EF)
If, within 12 months after the date when submission of the
standard monitoring plan, the system-specific study plan, or the
40/30 certification or becoming subject to a very small system
waiver is due, as identified in the applicable of subsections (a)(1)
through (a)(4) of this Section, the Agency does not approve a
supplier’s plan or notify the supplier that it has not yet completed
its review, the supplier may consider the plan that it submitted as
approved. The supplier must implement that plan, and it must
complete standard monitoring or a system-specific study no later
than the date when completion of the standard monitoring or
system-specific study is due, as identified in the applicable of
subsections (a)(1) through (a)(4) of this Section.
FG)
The supplier must submit its 40/30 certification pursuant to
Section 611.923 before the date indicated in the applicable of
subsections (a)(1) through (a)(4) of this Section.
GH) If, within three months after the due date for submission of the
IDSE report identified in this subsection (c)(1) (nine months after
this date if the supplier must comply on the schedule in subsection
(c)(1)(C) of this Section), the Agency does not approve the
supplier’s IDSE report or notify the supplier that it has not yet
completed its review, the supplier may consider the report that it
submitted to the Agency, and the supplier must implement the
recommended Subpart Y monitoring as required.
2)
For the purpose of determining the applicable compliance schedule in
subsection (c)(1) of this Section, the Agency may, by a SEP issued
pursuant to Section 611.110, determine that a combined distribution
system does not include certain consecutive systems based on such factors
as the receipt of water from a wholesale system only on an emergency
basis or the receipt of only a small percentage and small volume of water
from a wholesale system. The Agency may also determine, by a SEP
issued pursuant to Section 611.110, that a combined distribution system
does not include certain wholesale systems based on such factors as the
delivery of water to a consecutive system only on an emergency basis or
the delivery of only a small percentage and small volume of water to a
consecutive system.

236
d)
A supplier must do one of the following: it must conduct standard monitoring
that meets the requirements in Section 611.921; it must conduct a system-specific
study that meets the requirements in Section 611.922; it must certify to the
Agency that it meets the 40/30 certification criteria under Section 611.923; or it
must qualify for a very small system waiver under Section 611.924.
1)
The supplier must have taken the full complement of routine TTHM and
HAA5 compliance samples required of a system that serves the
appropriate population and which uses the appropriate source water under
Subpart I of this Part (or the supplier must have taken the full complement
of reduced TTHM and HAA5 compliance samples required of a system
with the supplier’s population and source water under Subpart I of this
Part if the supplier meets reduced monitoring criteria under Subpart I of
this Part) during the period specified in Section 611.923(a) to meet the 40/
30 certification criteria in Section 611.923. The supplier must have taken
TTHM and HAA5 samples under Sections 611.381 and 611.382 to be
eligible for the very small system waiver in Section 611.924.
2)
If the supplier has not taken the required samples, the supplier must
conduct standard monitoring that meets the requirements in Section
611.921, or a system-specific study that meets the requirements in Section
611.922.
e)
The supplier must use only the analytical methods specified in Section 611.381,
or otherwise approved by the Agency for monitoring under this Subpart W, to
demonstrate compliance with the requirements of this Subpart W.
f)
IDSE results will not be used for the purpose of determining compliance with
MCLs in Section 611.312.
BOARD NOTE: Derived from 40 CFR 141.600 (2006)
(2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
SUBPART Z: ENHANCED TREATMENT FOR CRYPTOSPORIDIUM
Section 611.1004
Source Water Monitoring Requirements: Analytical Methods
a)
Cryptosporidium. A supplier must analyze for Cryptosporidium using USEPA
OGWDW Methods,
Method 1623 (05) or USEPA OGWDW Methods, Method
1622 (05), or alternative methods approved by the Agency pursuant to Section
611.480, each incorporated by reference in Section 611.102.
1)
The supplier must analyze at least a 10
sample or a packed pellet volume
of at least 2 mℓ as generated by the methods listed in subsection (a) of this
Section. A supplier unable to process a 10
sample must analyze as much

237
sample volume as can be filtered by two filters approved by USEPA for
the methods listed in subsection (a) of this Section, up to a packed pellet
volume of at least 2 mℓ.
2)
Matrix spike (MS) samples.
A)
MS samples, as required by the methods in subsection (a) of this
Section, must be spiked and filtered by a laboratory approved for
Cryptosporidium analysis pursuant to Section 611.1005.
B)
If the volume of the MS sample is greater than 10
, the supplier
may filter all but 10
of the MS sample in the field, and ship the
filtered sample and the remaining 10
of source water to the
laboratory. In this case, the laboratory must spike the remaining
10
of water and filter it through the filter used to collect the
balance of the sample in the field.
3)
Flow cytometer-counted spiking suspensions must be used for MS
samples and ongoing precision and recovery samples.
b)
E. coli. A supplier must use methods for enumeration of E. coli in source water
approved in 40 CFR 136.3(a), or alternative methods approved by the Agency
pursuant to Section 611.480, incorporated by reference in Section 611.102.
1)
The time from sample collection to initiation of analysis may not exceed
30 hours, unless the supplier meets the condition of subsection (b)(2) of
this Section.
2)
The Agency may, by a SEP issued pursuant to Section 611.110, approve
on a case-by-case basis the holding of an E. coli sample for up to 48 hours
between sample collection and initiation of analysis if it determines that
analyzing an E. coli sample within 30 hours is not feasible. E. coli
samples held between 30 to 48 hours must be analyzed by the
Autoanalysis Colilert System reagent version of Standard Methods, 18th,
19th, or 20th ed., Method 9223 B, as listed in 40 CFR 136.3(a),
incorporated by reference in Section 611.102.
3)
A supplier must maintain the temperature of its samples between 0ºC and
10ºC during storage and transit to the laboratory.
4)
The supplier may use the membrane filtration, two-step procedure
described in Standard Methods, 20th ed., Method 9222 D and G,
incorporated by reference in Section 611.102.
BOARD NOTE: On June 3, 2008 (at 73 Fed. Reg. 31616), USEPA added
appendix A to subpart C of 40 CFR 141 of 40 CFR 141, which authorized

238
alternative methods to those listed for E. coli by multiple-tube technique at
corresponding 40 CFR 141.402(c)(2) to allow the use of Standard
Methods for the Examination of Water and Wastewater, 20th ed., Method
9222 D and G.
c)
Turbidity. A supplier must use methods for turbidity measurement approved in
Section 611.531(a).
BOARD NOTE: Derived from 40 CFR 141.704 (2006) (2007) and appendix A to 40 CFR 141,
as added at 73 Fed. Reg. 31616 (June 3, 2008).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
Section 611.1007
Source Water Monitoring Requirements: Grandfathering Previously
Collected Data
a)
Initial source monitoring and Cryptosporidium samples.
1)
A supplier may comply with the initial source water monitoring
requirements of Section 611.1001(a) by grandfathering sample results
collected before the supplier is required to begin monitoring (i.e.,
previously collected data). To be grandfathered, the sample results and
analysis must meet the criteria in this Section and the Agency must
approve the use of the data by a SEP issued pursuant to Section 611.110.
2)
A filtered system supplier may grandfather Cryptosporidium samples to
meet the requirements of Section 611.1001(a) when the supplier does not
have corresponding E. coli and turbidity samples. A supplier that
grandfathers Cryptosporidium samples without E. coli and turbidity
samples is not required to collect E. coli and turbidity samples when it
completes the requirements for Cryptosporidium monitoring pursuant to
Section 611.1001(a).
b)
E. coli sample analysis. The analysis of E. coli samples must meet the analytical
method and approved laboratory requirements of Sections 611.1004 and
611.1005.
c)
Cryptosporidium sample analysis. The analysis of Cryptosporidium samples
must meet the criteria in this subsection (c).
1)
Laboratories analyzed
must analyze Cryptosporidium samples using one
of the following analytical methods, or alternative methods approved by
the Agency pursuant to Section 611.480:
A)
USEPA OGWDW Methods,
Method 1623 (05), incorporated by
reference in Section 611.102;

239
B)
USEPA OGWDW Methods, Method 1622 (05), incorporated by
reference in Section 611.102;
C)
USEPA OGWDW Methods, Method 1623 (01), incorporated by
reference in Section 611.102;
D)
USEPA OGWDW Methods, Method 1622 (01), incorporated by
reference in Section 611.102;
E)
USEPA OGWDW Methods, Method 1623 (99), incorporated by
reference in Section 611.102; or
F)
USEPA OGWDW Methods, Method 1622 (99), incorporated by
reference in Section 611.102.
2)
For each Cryptosporidium sample, the laboratory analyzed at least 10
of
sample or at least 2 mℓ of packed pellet or as much volume as could be
filtered by two filters that USEPA approved for the methods listed in
subsection (c)(1) of this Section.
d)
Sampling location. The sampling location must meet the conditions in Section
611.1003.
e)
Sampling frequency. Cryptosporidium samples were collected no less frequently
than each calendar month on a regular schedule, beginning no earlier than January
1999. Sample collection intervals may vary for the conditions specified in
Section 611.1002(b)(1) and (b)(2) if the supplier provides documentation of the
condition when reporting monitoring results.
1)
The Agency may, by a SEP issued pursuant to Section 611.110, approve
grandfathering of previously collected data where there are time gaps in
the sampling frequency if the supplier conducts additional monitoring that
the Agency has specified by a SEP issued pursuant to Section 611.110 to
ensure that the data used to comply with the initial source water
monitoring requirements of Section 611.1001(a) are seasonally
representative and unbiased.
2)
A supplier may grandfather previously collected data where the sampling
frequency within each month varied. If the Cryptosporidium sampling
frequency varied, the supplier must follow the monthly averaging
procedure in Section 611.1010(b)(5) or Section 611.1012(a)(3), as
applicable, when calculating the bin classification for a filtered system
supplier or the mean Cryptosporidium concentration for an unfiltered
system supplier.

240
f)
Reporting monitoring results for grandfathering. A supplier that requests to
grandfather previously collected monitoring results must report the following
information by the applicable dates listed in this subsection. A supplier must
report this information to the Agency.
1)
A supplier must report that it intends to submit previously collected
monitoring results for grandfathering. This report must specify the
number of previously collected results the supplier will submit, the dates
of the first and last sample, and whether a supplier will conduct additional
source water monitoring to meet the requirements of Section 611.1001(a).
The supplier must report this information no later than the applicable date
set forth in Section 611.1002.
2)
A supplier must report previously collected monitoring results for
grandfathering, along with the associated documentation listed in
subsections (f)(2)(A) through (f)(2)(D) of this Section, no later than two
months after the applicable date listed in Section 611.1001(c).
A)
For each sample result, a supplier must report the applicable data
elements in Section 611.1006.
B)
A supplier must certify that the reported monitoring results include
all results that it generated during the time period beginning with
the first reported result and ending with the final reported result.
This applies to samples that were collected from the sampling
location specified for source water monitoring pursuant to this
Subpart Z, which were not spiked, and which were analyzed using
the laboratory’s routine process for the analytical methods listed in
this Section.
C)
The supplier must certify that the samples were representative of a
plant’s source waters and the source waters have not changed. It
must report a description of the sampling locations, which must
address the position of the sampling location in relation to its water
sources and treatment processes, including points of chemical
addition and filter backwash recycle.
D)
For Cryptosporidium samples, the laboratory or laboratories that
analyzed the samples must provide a letter certifying that the
quality control criteria specified in the methods listed in subsection
(c)(1) of this Section were met for each sample batch associated
with the reported results. Alternatively, the laboratory may
provide bench sheets and sample examination report forms for
each field, matrix spike, initial precision and recovery, ongoing
precision and recovery, and method blank sample associated with
the reported results.

241
g)
If the Agency determines that a previously collected data set submitted for
grandfathering was generated during source water conditions that were not
normal for the supplier, such as a drought, the Agency may, by a SEP issued
pursuant to Section 611.110, disapprove the data. Alternatively, the Agency may,
by a SEP issued pursuant to Section 611.110, approve the previously collected
data if the supplier reports additional source water monitoring data, as determined
by the Agency, to ensure that the data set used pursuant to Section 611.1010 or
Section 611.1012 represents average source water conditions for the supplier.
h)
If a supplier submits previously collected data that fully meet the number of
samples required for initial source water monitoring pursuant to Section
611.1001(a), and some of the data are rejected due to not meeting the
requirements of this Section, the supplier must conduct additional monitoring to
replace rejected data on a schedule that the Agency has approved by a SEP issued
pursuant to Section 611.110. A supplier is not required to begin this additional
monitoring until two months after notification that data have been rejected and
additional monitoring is necessary.
BOARD NOTE: Derived from 40 CFR 141.707 (2006) (2007).
(Source: Amended at 33 Ill. Reg. ________, effective ______________________)
I, John T. Therriault, Assistant Clerk of the Illinois Pollution Control Board, certify that
the Board adopted the above opinion on December 18, 2008, by a vote of 5-0.
____________________________________
John T. Therriault, Assistant Clerk
Illinois Pollution Control Board

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