TITLE 35: ENVIRONMENTAL PROTECTION

ILLINOIS POLLUTION CONTROL BOARD

October 4, 2001

IN THE MATTER OF:

)

SDWA UPDATE, USEPA AMENDMENTS

)

R01-20

(July 1, 2000 through December 31, 2000;

)

(Identical-in-Substance

Radionuclides)

)

Rulemaking - Public Water Supply)

Adopted Rule. Final Order.

ORDER OF THE BOARD (by R.C. Flemal):

Under Sections 7.2 and 17.5 of the Environmental Protection Act (Act) (415 ILCS 5/7.2

and 17.5 (2000)), the Board today adopts amendments to the Illinois regulations that are

“identical in substance” to drinking water regulations that the United States Environmental

Protection Agency (USEPA) adopted to implement Sections 1412(b), 1414(c), 1417(a), and

1445(a) of the federal Safe Drinking Water Act (SDWA) (42 U.S.C. §§ 300g-1(a), 300g-3(c),

300g-6(a), and 300j-4(a) (1994)). The nominal timeframe of this docket includes federal SDWA

amendments that USEPA adopted in the period July 1, 2000 through December 31, 2000.

Sections 7.2 and 17.5 provide for quick adoption 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 Safe Drinking Water Act (SDWA) (42 U.S.C. §§ 300g-1(a),

300g-3(c), 300g-6(a), and 300j-4(a) (1994)). Section 17.5 also provides that Title VII of the Act

and Section 5 of the Administrative Procedure Act (APA) (5 ILCS 100/5-35 and 5-40 (2000)) do

not apply to the Board’s adoption of identical

-in-substance regulations. The federal SDWA

regulations are found at 40 C.F.R. 141 through 143.

This order is supported by an opinion that the Board also adopts today. The Board will

promptly file the amendments with the Secretary of State and submit a Notice of Adopted

Amendments for publication in the

Illinois Register

. The complete text of the adopted

amendments follows.

IT IS SO ORDERED.

I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, certify that the Board

adopted the above order on October 4, 2001, by a vote of 7-0.

Dorothy M. Gunn, Clerk

Illinois Pollution Control Board

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

611.107 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

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

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 Chemicals

611.301 Revised MCLs for Inorganic Chemicals

611.310 Old Maximum Contaminant Levels (MCLs) for Organic Chemicals

611.311 Revised MCLs for Organic Contaminants

611.312 Maximum Contaminant Levels (MCLs) for Disinfection Byproducts (DBPs)

611.313 Maximum Residual Disinfectant Levels (MRDLs)

611.320 Turbidity

611.325 Microbiological Contaminants

611.330

Radium and Gross Alpha Particle ActivityMaximum Contaminant Levels for

Radionuclides

611.331 Beta Particle and Photon Radioactivity

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

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

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 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

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

SUBPART P: THM MONITORING AND ANALYTICAL REQUIREMENTS

Section

611.680 Sampling, Analytical and other Requirements

611.683 Reduced Monitoring Frequency

611.684 Averaging

611.685 Analytical Methods

611.686 Modification to System

611.687 Sampling for THM Potential

611.688 Applicability Dates

SUBPART Q: RADIOLOGICAL MONITORING AND ANALYTICAL

REQUIREMENTS

Section

611.720 Analytical Methods

611.731 Gross Alpha

611.732 Manmade

Beta Particle and Photon Radioactivity

611.733 General Monitoring and Compliance Requirements

SUBPART R: ENHANCED FILTRATION AND DISINFECTION

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 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)

611.858 Fluoride Secondary Standard (Repealed)

611.860 Record Maintenance

611.870 List of 36 Contaminants

SUBPART U: CONSUMER CONFIDENCE REPORTS

Section

611.881 Purpose and Applicability of this Subpart

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 Exceedance Exceedence of the Fluoride Secondary Standard

611.909 Special Notice for Nitrate Exceedances Exceedences above the MCL by a Non-

Community Water System

611.910 Notice by the Agency on Behalf of a PWS

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 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

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. ________, effective ______________________.

SUBPART A: GENERAL

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:

“Amco-AEPA-1 Polymer” is available from Advanced Polymer Systems.

“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.

“Dioxin and Furan Method 1613” means “Tetra- through Octa-

Chlorinated Dioxins and Furans by Isotope-Dilution HRGC/HRMS”,”

available from NTIS.

“GLI Method 2” means GLI Method 2, “Turbidity”,” Nov. 2, 1992,

available from Great Lakes Instruments, Inc.

“Guidance Manual for Compliance with the Filtration and Disinfection

Requirements for Public Water Systems Using Surface Water Sources”,”

available from USEPA Science and Technology Branch.

“HASL Procedure Manual” means HASL Procedure Manual, HASL 300,

available from ERDA Health and Safety Laboratory.

“Maximum Permissible Body Burdens and Maximum Permissible

Concentrations of Radionuclides in Air and in Water for Occupational

Exposure”,” NCRP Report Number 22, available from NCRP.

“NCRP” means “National Council on Radiation Protection”.

“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.

“ONGP-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

ed., from American Public Health Association.

“Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous

Solutions”,” available from NTIS.

“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.

“Technical Bulletin 601” means “Technical Bulletin 601, Standard

Method of Testing for Nitrate in Drinking Water”,” July 1994, available

from Analytical Technology, Inc.

“Technicon Methods” means “Fluoride in Water and Wastewater”,”

available from Technicon.

“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”,” available from

NTIS.

“USEPA Asbestos Methods-100.2” means Method 100.2, “Determination

of Asbestos Structures over 10-mm in Length in Drinking Water”,”

available from NTIS.

“USEPA Environmental Inorganics Methods” means “Methods for the

Determination of Inorganic Substances in Environmental Samples”,”

available from NTIS; “Methods for the Determination of Inorganic

Substances in Environmental Samples”,” August 1993, for Method 300.0;

“Determination of Inorganic Anions in Drinking Water by Ion

Chromatography, Revision 1.0”,” 1997, for Method 300.1.

“USEPA Environmental Metals Methods” means “Methods for the

Determination of Metals in Environmental Samples”,” available from

NTIS.

“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; and “Methods for the

Determination of Organic Compounds in Drinking Water--Supplement

II”,” August 1992, for Methods 515.2, 524.2, 548.1, 549.1, 552.1, and

555, available from NTIS. Methods 504.1, 508.1, and 525.2 are available

from EPA EMSL; “Methods for the Determination of Organic Compounds”

in Drinking Water-Supplement II, August 1992, for Method 552.1;

“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.

“USEPA Interim Radiochemical Methods” means “Interim Radiochemical

Methodology for Drinking Water”,” EPA 600/4-75-008 (revised), March

1976. 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.

“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 Millipore Corporation, Waters

Chromatography Division.

b) The Board incorporates the following publications by reference:

Access Analytical Systems, Inc. (See Environetics, Inc.)

Advanced Polymer Systems, 3696 Haven Avenue, Redwood City, CA

94063 415-366-2626:

Amco-AEPA-1 Polymer. See 40 CFR 141.22(a) (1998). Also, as

referenced in ASTM D1889.

American Public Health Association, 1015 Fifteenth Street NW,

Washington, DC 20005 800-645-5476:

“Standard Methods for the Examination of Water and

Wastewater”,” 17th Edition 1989 (referred to as “Standard

Methods, 17th ed.”).

“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 Water Works Association.

“Standard Methods for the Examination of Water and

Wastewater”,” 19th Edition, 1995 (referred to as “Standard

Methods, 19th ed.”).

American Waterworks Association et al., 6666 West Quincy Ave.,

Denver, CO 80235 303-794-7711:

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

Water (Total, Suspended and Dissolved).

Method 303, Total Radioactive Strontium and Strontium 90

in Water.

Method 304, Radium in Water by Precipitation.

Method 305, Radium 226 by Radon in Water (Soluble,

Suspended and Total).

Method 306, Tritium in Water.

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.

Method 2320 B, Alkalinity, Titration Method.

Method 2510 B, Conductivity, Laboratory Method.

Method 2550, Temperature, Laboratory and Field Methods.

Method 3111 B, Metals by Flame Atomic Absorption

Spectrometry, Direct Air-Acetylene Flame Method.

Method 3111 D, Metals by Flame Atomic Absorption

Spectrometry, Direct Nitrous Oxide-Acetylene Flame

Method.

Method 3112 B, Metals by Cold-Vapor Atomic Absorption

Spectrometry, Cold-Vapor Atomic Absorption

Spectrometric Method.

Method 3113 B, Metals by Electrothermal Atomic

Absorption Spectrometry, Electrothermal Atomic

Absorption Spectrometric Method.

Method 3114 B, Metals by Hydride Generation/Atomic

Absorption Spectrometry, Manual Hydride

Generation/Atomic Absorption Spectrometric Method.

Method 3120 B, Metals by Plasma Emission Spectroscopy,

Inductively Coupled Plasma (ICP) Method.

Method 3500-Ca D, Calcium, EDTA Titrimetric Method.

Method 4110 B, Determination of Anions by Ion

Chromatography, Ion Chromatography with Chemical

Suppression of Eluent Conductivity.

Method 4500-CN

C, Cyanide, Total Cyanide after

Distillation.

Method 4500-CN

E, Cyanide, Colorimetric Method.

Method 4500-CN

F, Cyanide, Cyanide-Selective Electrode

Method.

Method 4500-CN

G, Cyanide, Cyanides Amenable to

Chlorination after Distillation.

Method 4500-ClO2 C, Chlorine Dioxide, Amperometric

Method I.

Method 4500-F

B, Fluoride, Preliminary Distillation Step.

Method 4500-F

C, Fluoride, Ion-Selective Electrode

Method.

Method 4500-F

D, Fluoride, SPADNS Method.

Method 4500-F

E, Fluoride, Complexone Method.

Method 4500-H

B, pH Value, Electrometric Method.

Method 4500-NO2

B, Nitrogen (Nitrite), Colorimetric

Method.

Method 4500-NO3

D, Nitrogen (Nitrate), Nitrate Electrode

Method.

Method 4500-NO3

E, Nitrogen (Nitrate), Cadmium

Reduction Method.

Method 4500-NO3

F, Nitrogen (Nitrate), Automated

Cadmium Reduction Method.

Method 4500-O3 B, Ozone (Residual) (Proposed), Indigo

Colorimetric Method.

Method 4500-P E, Phosphorus, Ascorbic Acid Method.

Method 4500-P F, Phosphorus, Automated Ascorbic Acid

Reduction Method.

Method 4500-Si D, Silica, Molybdosilicate Method.

Method 4500-Si E, Silica, Heteropoly Blue Method.

Method 4500-Si F, Silica, Automated Method for

Molybdate-Reactive Silica.

Method 4500-SO4

C, Sulfate, Gravimetric Method with

Ignition of Residue.

Method 4500-SO4

D, Sulfate, Gravimetric Method with

Drying of Residue.

Method 4500-SO4

F, Sulfate, Automated Methylthymol

Blue Method.

Method 6610, Carbamate Pesticide Method.

Method 6651, Glyphosate Herbicide (Proposed).

Method 7110 B, Gross Alpha and Beta Radioactivity

(Total, Suspended, and Dissolved), Evaporation Method for

Gross Alpha-Beta.

Method 7110 C, Gross Alpha and Beta Radioactivity

(Total, Suspended, and Dissolved), Coprecipitation Method

for Gross Alpha Radioactivity in Drinking Water

(Proposed).

Method 7500-Cs B, Radioactive Cesium, Precipitation

Method.

Method 7500-3H, B, Tritium, Liquid Scintillation

Spectrometric Method.

Method 7500-I B, Radioactive Iodine, Precipitation

Method.

Method 7500-I C, Radioactive Iodine, Ion-Exchange

Method.

Method 7500-I D, Radioactive Iodine, Distillation Method.

Method 7500-Ra B, Radium, Precipitation Method.

Method 7500-Ra C, Radium, Emanation Method.

Method 7500-Ra D, Radium, Sequential Precipitation

Method (Proposed).

Method 7500-U B, Uranium, Radiochemical Method

(Proposed).

Method 7500-U C, Uranium, Isotopic Method (Proposed).

Method 9215 B, Heterotrophic Plate Count, Pour Plate

Method.

Method 9221 A, Multiple-Tube Fermentation Technique

for Members of the Coliform Group, Introduction.

Method 9221 B, Multiple-Tube Fermentation Technique

for Members of the Coliform Group, Standard Total

Coliform Fermentation Technique.

Method 9221 C, Multiple-Tube Fermentation Technique

for Members of the Coliform Group, Estimation of

Bacterial Density.

Method 9221 D, Multiple-Tube Fermentation Technique

for Members of the Coliform Group, Presence-Absence (P-

A) Coliform Test.

Method 9222 A, Membrane Filter Technique for Members

of the Coliform Group, Introduction.

Method 9222 B, Membrane Filter Technique for Members

of the Coliform Group, Standard Total Coliform Membrane

Filter Procedure.

Method 9222 C, Membrane Filter Technique for Members

of the Coliform Group, Delayed-Incubation Total Coliform

Procedure.

Method 9223, Chromogenic Substrate Coliform Test

(Proposed).

Standard Methods for the Examination of Water and Wastewater,

19th Edition, 1995 (referred to as “Standard Methods, 19th ed.”):

Method 7120-B, Gamma Spectrometric Method.

Method 7500-U C, Uranium, Isotopic Method.

Method 4500-Cl D, Chlorine (Residual), Amperometric

Titration Method.

Method 4500-Cl E, Chlorine (Residual), Low-Level

Amperometric Titration Method.

Method 4500-Cl F, Chlorine (Residual), DPD Ferrous

Titrimetric Method.

Method 4500-Cl G, Chlorine (Residual), DPD Colorimetric

Method.

Method 4500-Cl H, Chlorine (Residual), Syringaldazine

(FACTS) Method.

Method 4500-Cl I, Chlorine (Residual), Iodometric

Electrode Technique.

Method 4500-ClO2 D, Chlorine Dioxide, DPD Method.

Method 4500-ClO2 E, Chlorine Dioxide, Amperometric

Method II.

Method 6251 B, Disinfection Byproducts: Haloacetic Acids

and Trichlorophenol, Micro Liquid-Liquid Extraction Gas

Chromatographic Method.

Method 5910 B, UV Absorbing Organic Constituents,

Ultraviolet Absorption Method.

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.

Method 5310 C, TOC, Persulfate-Ultraviolet Oxidation

Method.

Method 5310 D, TOC, Wet-Oxidation Method.

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”).

ASTM. American Society for Testing and Materials, 1976 Race Street,

Philadelphia, PA 19103 215-299-5585:

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.

ASTM Method D515-88 A, “Standard Test Methods for

Phosphorus in Water”,” “Test Method A--Colorimetric Ascorbic

Acid Reduction”,” approved August 19, 1988.

ASTM Method D859-88, “Standard Test Method for Silica in

Water”,” approved August 19, 1988.

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.

ASTM Method D1125-91 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.

ASTM Method D1179-93 B “Standard Test Methods for Fluoride

in Water”,” “Test Method B--Ion Selective Electrode”,” approved

1993.

ASTM Method D1293-84 “Standard Test Methods for pH of

Water”,” “Test Method A--Precise Laboratory Measurement” &

“Test Method B--Routine or Continuous Measurement”,”

approved October 26, 1984.

ASTM Method D1688-90 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.

ASTM Method D2036-91 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.

ASTM Method D2459-72, “Standard Test Method for Gamma

Spectrometry in Water,” approved July 28, 1972, discontinued

1988.

ASTM Method D2460-90, “Standard Test Method for

Radionuclides of Radium in Water”,” approved 1990.

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.

ASTM Method D2972-93 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.

ASTM Method D3223-91, “Standard Test Method for Total

Mercury in Water”,” approved September 23, 1991.

ASTM Method D3454-91, “Standard Test Method for Radium-226

in Water”,” approved 1991.

ASTM Method D3559-90 D, “Standard Test Methods for Lead in

Water”,” “Test Method D--Atomic Absorption, Graphite

Furnace”,” approved August 6, 1990.

ASTM Method D3645-93 B, “Standard Test Methods for

Beryllium in Water”,” “Method B--Atomic Absorption, Graphite

Furnace”,” approved 1993.

ASTM Method D3649-91, “Standard Test Method for High-

Resolution Gamma-Ray Spectrometry of Water”,” approved 1991.

ASTM Method D3697-92, “Standard Test Method for Antimony

in Water”,” approved June 15, 1992.

ASTM Method D3859-93 A, “Standard Test Methods for

Selenium in Water”,” “Method A--Atomic Absorption, Hydride

Method”,” approved 1993.

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 Cadmium Reduction”,”

approved January 10, 1990.

ASTM Method D3972-90, “Standard Test Method for Isotopic

Uranium in Water by Radiochemistry”,” approved 1990.

ASTM Method D4107-91, “Standard Test Method for Tritium in

Drinking Water”,” approved 1991.

ASTM Method D4327-91, “Standard Test Method for Anions in

Water by Ion Chromatography”,” approved October 15, 1991.

ASTM Method D4785-88, “Standard Test Method for Low-Level

Iodine-131 in Water”,” approved 1988.

ASTM Method D5174-91, “Standard Test Method for Trace

Uranium in Water by Pulsed-Laser Phosphorimetry”,” approved

1991.

ASTM Method D 1253-86, “Standard Test Method for Residual

Chlorine in Water,” reapproved 1992.

ERDA Health and Safety Laboratory, New York, NY:

HASL Procedure Manual, HASL 300, 1973. See 40 CFR

141.25(b)(2) (1998).

Great Lakes Instruments, Inc., 8855 North 55th Street, Milwaukee, WI

53223:

GLI Method 2, “Turbidity”,” Nov. 2, 1992.

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”).

Millipore Corporation, Waters Chromatography Division, 34 Maple St.,

Milford, MA 01757 800-252-4752:

Waters Test Method for the Determination of Nitrite/Nitrate in

Water Using Single Column Ion Chromatography, Method B-1011

(referred to as “Waters Method B-1011”).

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.

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.

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”). (Pages 1, 4, 6, 9, 13, 16, 24,

29, 34)

“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.

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”).

Method 100.2, “Determination of Asbestos Structures over 10-mm

in Length in Drinking Water”,” EPA-600/4-83-043, June, 1994,

Doc. No. PB94-201902 (Referred to as “USEPA Asbestos

Methods-100.2”).

“Methods for Chemical Analysis of Water and Wastes”,” March,

1983, 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.)

“Methods for the Determination of Metals in Environmental

Samples”,” June, 1991, Doc. No. PB91-231498 (referred to as

“USEPA Environmental Metals Methods”).

“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”). (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

(referred to as “USEPA Organic Methods”). (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 (referred to as “USEPA Organic Methods”). (For methods

515.2, 524.2, 548.1, 549.1, 552.1, and 555.)

“Prescribed Procedures for Measurement of Radioactivity in

Drinking Water”,” EPA 600/4-80-032, August 1980 (referred to as

“USEPA Radioactivity Methods”). (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.

“Radiochemical Analytical Procedures for Analysis of

Environmental Samples”,” March, 1979, Doc. No. EMSL LV

053917 (referred to as “USEPA Radiochemical Analyses”).

(Pages 1, 19, 33, 65, 87, 92)

“Radiochemistry Procedures Manual”,” EPA-520/5-84-006,

December, 1987, Doc. No. PB-84-215581 (referred to as “USEPA

Radiochemistry Methods”). (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. PB-104766 (referred to as “USEPA

Technical Notes”).

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) (1995): “This document contains other analytical test

procedures and approved analytical methods that remain available

for compliance monitoring until July 1, 1996.”

“Tetra- through Octa- Chlorinated Dioxins and Furans by Isotope

Dilution HRGC/HRMS”,” October, 1994, EPA-821-B-94-005

(referred to as “Dioxin and Furan Method 1613”).

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.

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.

Technicon Industrial Systems, Tarrytown, NY 10591:

“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

(1995).

“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 (1995).

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.

United States Environmental Protection Agency, EMSL, Cincinnati, OH

45268 513-569-7586:

“Interim Radiochemical Methodology for Drinking Water”,” EPA-

600/4-75-008 (referred to as “Radiochemical Methods”).

(Revised) March, 1976.

“Methods for the Determination of Organic Compounds in

Finished Drinking Water and Raw Source Water” (referred to as

“USEPA Organic Methods”). (For methods 504.1, 508.1, and

525.2 only). See NTIS.

“Procedures for Radiochemical Analysis of Nuclear Reactor

Aqueous Solutions”. See NTIS.

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.

USGS. Books and Open-File Reports Section, United States Geological

Survey, Federal Center, Box 25425, Denver, CO 80225-0425:

Methods available upon request by method number from “Methods

of 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 or

Book 5, Chapter A-1, “Methods for Determination of Inorganic

Substances in Water and Fluvial Sediments”,” 3d ed., Open-File

Report 85-495, 1989, as appropriate (referred to as “USGS

Methods”).

I-1030-85

I-1062-85

I-1601-85

I-1700-85

I-2598-85

I-2601-90

I-2700-85

I-3300-85

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.

R-1110-76

R-1111-76

R-1120-76

R-1140-76

R-1141-76

R-1142-76

R-1160-76

R-1171-76

R-1180-76

R-1181-76

R-1182-76

c) The Board incorporates the following federal regulations by reference:

40 CFR 136, Appendix B and C (1999) (2000).

d) This Part incorporates no later amendments or editions.

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.110 Special Exception Permits

a) Unless otherwise specified, each Agency determination in this Part is to be made

by way of a written permit pursuant to Section 39(a) of the Act. Such permit is

titled a “special exception” permit (“SEP”).

b) No person shall may cause or allow the violation of any condition of a SEP.

c) The supplier may appeal the denial of or the conditions of a SEP to the Board

pursuant to Section 40 of the Act.

d) A SEP may be initiated either:

1) By an application filed by the supplier; or

2) By the Agency, when authorized by Board regulations.

BOARD NOTE: The Board does not intend to mandate by any provision

of this Part that the Agency exercise its discretion and initiate a SEP

pursuant to subsection (d)(2) above of this Section. Rather, the Board

intends to clarify by this subsection that the Agency may opt to initiate a

SEP without receiving a request from the supplier.

e) The Agency shall must evaluate a request for a SEP from the monitoring

requirements of Section 611.601, 611.602, or 611.603 (inorganic chemical

contaminants, excluding the Section 611.603 monitoring frequency requirements

for cyanide); Section 611.646(e) and (f) (Phase I, Phase II, and Phase V VOCs);

Section 611.646(d), only as to initial monitoring for 1,2,4-trichlorobenzene;

Section 611.648(d) (for Phase II, Phase IIB, and Phase V SOCs) or Section

611.510 (for unregulated organic contaminants) on the basis of knowledge of

previous use (including transport, storage, or disposal) of the contaminant in the

watershed or zone of influence of the system, as determined pursuant to 35 Ill.

Adm. Code 671:

BOARD NOTE: The Agency shall must grant a SEP from the Section 611.603

monitoring frequency requirements for cyanide only on the basis of subsection (g)

below of this Section, not on the basis of this subsection.

1) If the Agency determines that there was no prior use of the contaminant, it

shall must grant the SEP, or

2) If the contaminant was previously used or the previous use was unknown,

the Agency shall must consider the following factors:

A) Previous analytical results;

B) The proximity of the system to any possible point source of

contamination (including spills or leaks at or near a water

treatment facility; at manufacturing, distribution, or storage

facilities; from hazardous and municipal waste land fills; or from

waste handling or treatment facilities) or non-point source of

contamination (including the use of pesticides and other land

application uses of the contaminant);

C) The environmental persistence and transport of the contaminant;

D) How well the water source is protected against contamination,

including whether it is a SWS or a GWS:

i) A GWS must consider well depth, soil type, well casing

integrity, and wellhead protection; and

ii) A SWS must consider watershed protection;

E) For Phase II, Phase IIB, and Phase V SOCs and unregulated

organic contaminants (pursuant to Section 611.631 or 611.648):

i) Elevated nitrate levels at the water source; and

ii) The use of PCBs in equipment used in the production,

storage, or distribution of water (including pumps,

transformers, etc.); and

F) For Phase I, Phase II, and Phase V VOCs (pursuant to Section

611.646): the number of persons served by the PWS and the

proximity of a smaller system to a larger one.

f) If a supplier refuses to provide any necessary additional information requested by

the Agency, or if a supplier delivers any necessary information late in the

Agency’s deliberations on a request, the Agency may deny the requested SEP or

grant the SEP with conditions within the time allowed by law.

g) The Agency shall must grant a supplier a SEP that allows it to discontinue

monitoring for cyanide if it determines that the supplier’s water is not vulnerable

due to a lack of any industrial source of cyanide.

BOARD NOTE: Subsection (e) above of this Section is derived from 40 CFR

141.24(f)(8) and (h)(6) (1994) (2000). Subsection (f) above of this Section is

derived from 40 CFR 141.82(d)(2), and 141.83(b)(2) (1994) (2000). Subsection

(g) is derived from 40 CFR 141.23(c)(2) (1994) (2000). U.S. EPA USEPA has

reserved the discretion, at 40 CFR 142.18 (1994) (2000), to review and nullify

Agency determinations of the types made pursuant to Sections 611.510, 611.602,

611.603, 611.646, and 611.648 and the discretion, at 40 CFR 141.82(i),

141.83(b)(7), and 142.19 (1994) (2000), to establish federal standards for any

supplier, superseding any Agency determination made pursuant to Sections

611.352(d), 611.352(f), 611.353(b)(2), and 611.353(b)(4).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.130 Special Requirements for Certain Variances and Adjusted Standards

a) Relief from the TTHM MCL.

1) In granting any variance or adjusted standard to a supplier that is a CWS

that which adds a disinfectant at any part of treatment and which provides

water to 10,000 or more persons on a regular basis from the maximum

contaminant level for TTHM listed in Section 611.310(c), the Board will

require application of the best available technology (BAT) identified at

subsection (a)(4) below of this Section for that constituent as a condition

to the relief, unless the supplier has demonstrated through comprehensive

engineering assessments that application of BAT is not technically

appropriate and technically feasible for that system, or it that the

application would only result in a marginal reduction in TTHM for that

supplier.

2) The Board will require the following as a condition for relief from the

TTHM MCL where it does not require the application of BAT:

A) That the supplier continue to investigate the following methods as

an alternative means of significantly reducing the level of TTHM,

according to a definite schedule:

i) The

introduction of off-line water storage for THM

precursor reduction;

ii) aeration

Aeration for TTHM reduction, where geography

and climate allow;

iii) The

introduction of clarification, where not presently

practiced;

iv) The

use of alternative sources of raw water; and

v) The

use of ozone as an alternative or supplemental

disinfectant or oxidant, and

B) That the supplier report results of that investigation to the Agency.

3) The Agency shall must petition the Board to reconsider or modify a

variance or adjusted standard, pursuant to Subpart I of 35 Ill. Adm. Code

101.Subpart K, if it determines that an alternative method identified by the

supplier pursuant to subsection (a)(2) above of this Section is technically

feasible and would result in a significant reduction in TTHM.

4) Best available technology for TTHM reduction is as follows:

A) The

use of chloramines as an alternative or supplemental

disinfectant,

B) The

use of chlorine dioxide as an alternative or supplemental

disinfectant, or

C) improved

Improved existing clarification for THM precursor

reduction.

BOARD NOTE: Derived Subsection (a) derived from 40 CFR 142.60 (1994)

(2000). The restrictions of this subsection do not apply to suppliers regulated for

TTHM as an additional state requirement. See the Board Note to Section

611.301(c).

b) Relief from the fluoride MCL.

1) In granting any variance or adjusted standard to a supplier that is a CWS

from the maximum contaminant level for fluoride listed in Section

611.301(b), the Board will require application of the best available

technology (BAT) identified at subsection (b)(4) below of this Section for

that constituent as a condition to the relief, unless the supplier has

demonstrated through comprehensive engineering assessments that

application of BAT is not technically appropriate and technically feasible

for that supplier.

2) The Board will require the following as a condition for relief from the

fluoride MCL where it does not require the application of BAT:

A) That the supplier continue to investigate the following methods as

an alternative means of significantly reducing the level of fluoride,

according to a definite schedule:

i) A

modification of lime softening;

ii) alum

Alum coagulation;

iii) electrodialysisElectrodialysis;

iv) anion

Anion exchange resins;

v) well Well field management;

vi) The

use of alternative sources of raw water; and

vii) regionalizationRegionalization, and

B) That the supplier report results of that investigation to the Agency.

3) The Agency shall must petition the Board to reconsider or modify a

variance or adjusted standard, pursuant to Subpart I of 35 Ill. Adm. Code

101.Subpart K, if it determines that an alternative method identified by the

supplier pursuant to subsection (b)(2) above of this Section is technically

feasible and would result in a significant reduction in fluoride.

4) Best available technology for fluoride reduction is as follows:

A) activated

Activated alumina absorption centrally applied, and

B) reverse

Reverse osmosis centrally applied.

BOARD NOTE: Derived Subsection (b) derived from 40 CFR 142.61 (1994)

(2000).

c) Relief from an inorganic chemical contaminant, VOC, or SOC MCL.

1) In granting to a supplier that is a CWS or NTNCWS any variance or

adjusted standard from the maximum contaminant levels for any VOC or

SOC, listed in Section 611.311(a) or (c), or for any inorganic chemical

contaminant, listed in Section 611.301, the supplier must have first

applied the best available technology (BAT) identified at Section

611.311(b) (VOCs and SOCs) or Section 611.301(c) (inorganic chemical

contaminants) for that constituent, unless the supplier has demonstrated

through comprehensive engineering assessments that application of BAT

would achieve only a minimal and insignificant reduction in the level of

contaminant.

BOARD NOTE: USEPA lists BAT for each SOC and VOC at 40 CFR

142.62(a) (1995) (2000), for the purposes of variances and exemptions

(adjusted standards). That list is identical to the list at 40 CFR 141.61(b)

(1995) (2000).

2) The Board may require any of the following as a condition for relief from

a MCL listed in Section 611.301 or 611.311:

A) That the supplier continue to investigate alternative means of

compliance according to a definite schedule, and

B) That the supplier report results of that investigation to the Agency.

3) The Agency shall must petition the Board to reconsider or modify a

variance or adjusted standard, pursuant to Subpart I of 35 Ill. Adm. Code

101.Subpart K, if it determines that an alternative method identified by the

supplier pursuant to subsection (c)(2) above of this Section is technically

feasible.

BOARD NOTE: Derived Subsection (c) derived from 40 CFR 142.62(a) through

(e) (1994) (2000).

d) Conditions requiring use of bottled water or point-of-use or point-of-entry

devices. In granting any variance or adjusted standard from the maximum

contaminant levels for organic and inorganic chemicals or an adjusted standard

from the treatment technique for lead and copper, the Board may impose certain

conditions requiring the use of bottled water, point-of-entry devices, or point-of-

use devices to avoid an unreasonable risk to health, limited as provided in

subsections (e) and (f) below of this Section.

1) Relief from an MCL. The Board may, when granting any variance or

adjusted standard from the MCL requirements of Sections 611.301 and

611.311, impose a condition that requires a supplier to use bottled water,

point-of-use devices, point-of-entry devices or other means to avoid an

unreasonable risk to health.

2) Relief from corrosion control treatment. The Board may, when granting

an adjusted standard from the corrosion control treatment requirements for

lead and copper of Sections 611.351 and 611.352, impose a condition that

requires a supplier to use bottled water and point-of-use devices or other

means, but not point-of-entry devices, to avoid an unreasonable risk to

health.

3) Relief from source water treatment or service line replacement. The

Board may, when granting an exemption from the source water treatment

and lead service line replacement requirements for lead and copper under

Sections 611.353 or 611.354, impose a condition that requires a supplier

to use point-of-entry devices to avoid an unreasonable risk to health.

BOARD NOTE: Derived Subsection (d) derived from 40 CFR 142.62(f) (1994)

(2000).

e) Use of bottled water. Suppliers that propose to use or use bottled water as a

condition for receiving a variance or an adjusted standard from the requirements

of Section 611.301 or Section 611.311, or an adjusted standard from the

requirements of Sections 611.351 through 611.354 must meet the requirements of

either subsections (e)(1), (e)(2), (e)(3), and (e)(6) or (e)(4), (e)(5) and (e)(6)

below of this Section:

1) The supplier must develop a monitoring program for Board approval that

provides reasonable assurances that the bottled water meets all MCLs of

Sections 611.301 and 611.311 and submit a description of this program as

part of its petition. The proposed program must describe how the supplier

will comply with each requirement of this subsection.

2) The supplier must monitor representative samples of the bottled water for

all contaminants regulated under Sections 611.301 and 611.311 during the

first three-month period that it supplies the bottled water to the public, and

annually thereafter.

3) The supplier shall must annually provide the results of the monitoring

program to the Agency.

4) The supplier must receive a certification from the bottled water company

as to each of the following:

A) that the bottled water supplied has been taken from an approved

source of bottled water, as such is defined in Section 611.101;

B) that the approved source of bottled water has conducted

monitoring in accordance with 21 CFR 129.80(g)(1) through (3);

C) and that the bottled water does not exceed any MCLs or quality

limits as set out in 21 CFR 103.35, 110, and 129.

5) The supplier shall must provide the certification required by subsection

(e)(4) above of this Section to the Agency during the first quarter after it

begins supplying bottled water and annually thereafter.

6) The supplier shall must assure the provision of sufficient quantities of

bottled water to every affected person supplied by the supplier via door-

to-door bottled water delivery.

BOARD NOTE: Derived Subsection (e) derived from 40 CFR 142.62(g) (1994)

(2000).

f) Use of point-of-entry devices. Before the Board grants any PWS a variance or

adjusted standard from any NPDWR that includes a condition requiring the use of

a point-of-entry device, the supplier must demonstrate to the Board each of the

following:

1) that

That the supplier will operate and maintain the device;

2) that

That the device provides health protection equivalent to that provided

by central treatment;

3) that

That the supplier will maintain the microbiological safety of the water

at all times;

4) that

That the supplier has established standards for performance,

conducted a rigorous engineering design review, and field tested the

device;

5) that

That the operation and maintenance of the device will account for any

potential for increased concentrations of heterotrophic bacteria resulting

through the use of activated carbon, by backwashing, post-contactor

disinfection, and heterotrophic plate count monitoring;

6) that

That buildings connected to the supplier's distribution system have

sufficient devices properly installed, maintained, and monitored to assure

that all consumers are protected; and

7) that

That the use of the device will not cause increased corrosion of lead

and copper bearing materials located between the device and the tap that

could increase contaminant levels at the tap.

BOARD NOTE: Derived Subsection (f) derived from 40 CFR 142.62(h) (1994)

(2000).

g) Relief from the maximum contaminant levels for radionuclides (effective

December 8, 2003).

1) Relief from the maximum contaminant levels for combined radium-226

and radium-228, uranium, gross alpha particle activity (excluding Radon

and Uranium), and beta particle and photon radioactivity.

A) Section 611.330(g) sets forth what USEPA has identified as the

best available technology (BAT), treatment techniques, or other

means available for achieving compliance with the maximum

contaminant levels for the radionuclides listed in Section

611.330(b), (c), (d), and (e), for the purposes of issuing relief

equivalent to a federal section 1415 variance or a section 1416

exemption.

B) In addition to the technologies listed in Section 611.330(g),

Section 611.330(h) sets forth what USEPA has identified as the

BAT, treatment techniques, or other means available for achieving

compliance with the maximum contaminant levels for the

radionuclides listed in Section 611.330(b), (c), (d), and (e), for the

purposes of issuing relief equivalent to a federal section 1415

variance or a section 1416 exemption to small drinking water

systems, defined here as those serving 10,000 persons or fewer, as

shown in the second table set forth at Section 611.330(h).

2) The Board will require a CWS supplier to install and use any treatment

technology identified in Section 611.330(g), or in the case of small water

systems (those serving 10,000 persons or fewer), listed in Section

611.330(h), as a condition for granting relief equivalent to a federal

section 1415 variance or a section 1416 exemption, except as provided in

subsection (a)(3) of this Section. If, after the system's installation of the

treatment technology, the system cannot meet the MCL, that system will

be eligible for relief.

3) If a CWS supplier can demonstrate through comprehensive engineering

assessments, which may include pilot plant studies, that the treatment

technologies identified in this Section would only achieve a de minimus

reduction in the contaminant level, the Board may issue a schedule of

compliance that requires the system being granted relief equivalent to a

federal section 1415 variance or a section 1416 exemption to examine

other treatment technologies as a condition of obtaining the relief.

4) If the Agency determines that a treatment technology identified under

subsection (a)(3) of this Section is technically feasible, it may request that

the Board require the supplier to install and use that treatment technology

in connection with a compliance schedule issued pursuant to Section 36 of

the Act. The Agency's determination must be based upon studies by the

system and other relevant information.

5) The Board may require a community water system to use bottled water,

point-of-use devices, point-of-entry devices, or other means as a condition

of granting relief equivalent to a federal Section 1415 variance or a

Section 1416 exemption from the requirements of Section 611.330, to

avoid an unreasonable risk to health.

6) A CWS supplier that uses bottled water as a condition for receiving relief

equivalent to a federal Section 1415 variance or a Section 1416 exemption

from the requirements of Section 611.330 must meet the requirements

specified in either subsections (e)(1) through (e)(3) or (e)(4) through

(e)(6) of this Section.

7) A CWS supplier that uses point-of-use or point-of-entry devices as a

condition for obtaining relief equivalent to a federal Section 1415 variance

or a Section 1416 exemption from the radionuclides NPDWRs must meet

the conditions in subsections (g)(1) through (g)(6) of this Section.

BOARD NOTE: Subsection (g) derived from 40 CFR 142.65, as added at 65

Fed. Reg. 76751 (December 7, 2000), effective December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART B: FILTRATION AND DISINFECTION

Section 611.261 Unfiltered PWSs: Reporting and Recordkeeping

A supplier that uses a surface water source and does not provide filtration treatment must report

monthly to the Agency the information specified in this Section beginning December 31, 1990,

unless the Agency has determined that filtration is required, in which case the Agency must, by

special exception permit, specify alternative reporting requirements, as appropriate, until

filtration is in place. A supplier that uses a groundwater source under the direct influence of

surface water and does not provide filtration treatment must report monthly to the Agency the

information specified in this Section beginning December 31, 1990, or six months after the

Agency determines that the groundwater source is under the direct influence of surface water,

whichever is later, unless the Agency has determined that filtration is required, in which case the

Agency must, by special exception permit, specify alternative reporting requirements, as

appropriate, until filtration is in place.

a) Source water quality information must be reported to the Agency within ten days

after the end of each month the system serves water to the public. Information

that must be reported includes:

1) The cumulative number of months for which results are reported.

2) The number of fecal or total coliform samples, whichever are analyzed

during the month (if a system monitors for both, only fecal coliforms must

be reported), the dates of sample collection, and the dates when the

turbidity level exceeded 1 NTU.

3) The number of samples during the month that had equal to or fewer than

20/100 ml fecal coliforms or equal to or fewer than 100/100 ml total

coliforms, whichever are analyzed.

4) The cumulative number of fecal or total coliform samples, whichever are

analyzed, during the previous six months the system served water to the

public.

5) The cumulative number of samples that had equal to or fewer than 20/100

ml fecal coliforms or equal to or fewer than 100/100 ml total coliforms,

whichever are analyzed, during the previous six months the system served

water to the public.

6) The percentage of samples that had equal to or fewer than 20/100 ml fecal

coliforms or equal to or fewer than 100/100 ml total coliforms, whichever

are analyzed, during the previous six months the system served water to

the public.

7) The maximum turbidity level measured during the month, the dates of

occurrence for any measurements which that exceeded 5 NTU and the

dates the occurrences were reported to the Agency.

8) For the first 12 months of recordkeeping, the dates and cumulative number

of events during which the turbidity exceeded 5 NTU, and after one year

of recordkeeping for turbidity measurements, the dates and cumulative

number of events during which the turbidity exceeded 5 NTU in the

previous 12 months the system served water to the public.

9) For the first 120 months of recordkeeping, the dates and cumulative

number of events during which the turbidity exceeded 5 NTU, and after

ten years of recordkeeping for turbidity measurements, the dates and

cumulative number of events during which the turbidity exceeded 5 NTU

in the previous 120 months the system served water to the public.

b) Disinfection information specified in Section 611.532 must be reported to the

Agency within ten days after the end of each month the system serves water to the

public. Information that must be reported includes:

1) For each day, the lowest measurement of RDC in mg/L in water entering

the distribution system.

2) The date and duration of each period when the RDC in water entering the

distribution system fell below 0.2 mg/L and when the Agency was notified

of the occurrence.

3) The daily RDCs (in mg/L) and disinfectant contact times (in minutes) used

for calculating the CT values.

4) If chlorine is used, the daily measurements of pH of disinfected water

following each point of chlorine disinfection.

5) The daily measurements of water temperature in degrees C following each

point of disinfection.

6) The daily CTcalc and Ai values for each disinfectant measurement or

sequence and the sum of all Ai values (B) before or at the first customer.

7) The daily determination of whether disinfection achieves adequate Giardia

cyst and virus inactivation, i.e., whether Ai is at least 1.0 or, where

disinfectants other than chlorine are used, other indicator conditions that

the Agency, pursuant to Section 611.241(a)(1), determines are

appropriate, are met.

8) The following information on the samples taken in the distribution system

in conjunction with total coliform monitoring pursuant to Section 611.240

through 611.242:

A) Number of instances where the RDC is measured;

B) Number of instances where the RDC is not measured but HPC is

measured;

C) Number of instances where the RDC is measured but not detected

and no HPC is measured;

D) Number of instances where no RDC is detected and where HPC is

greater than 500/ml;

E) Number of instances where the RDC is not measured and HPC is

greater than 500/ml;

For the current and previous month the system served water to the

public, the value of “V” in the following formula:

(

)

(

)

100 c + d + e

a+ b

where:

a =

Value in subsection (b)(8)(A) of this Section

b =

Value in subsection (b)(8)(B) of this Section

c =

Value in subsection (b)(8)(C) of this Section

d =

Value in subsection (b)(8)(D) of this Section

e =

Value in subsection (b)(8)(E) of this Section

The requirements of subsections (b)(8)(A) through (b)(8)(F) of this

Section do not apply if the Agency determines, pursuant to Section

611.213, that a system has no means for having a sample analyzed

for HPC.

A system need not report the data listed in subsections (b)(1), and (b)(3)

through (b)(6) of this Section, if all data listed in subsections (b)(1)

through (b)(8) of this Section remain on file at the system, and the Agency

determines, by special exception permit, that:

The system has submitted to the Agency all the information

required by subsections (b)(1) through (b)(8) of this Section for at

least 12 months; and

The Agency has determined that the system is not required to

provide filtration treatment.

By October 10 of each year, each system must provide to the Agency a report

which that summarizes its compliance with all watershed control program

requirements specified in Section 611.232(b).

By October 10 of each year, each system must provide to the Agency a report on

the on-site inspection conducted during that year pursuant to Section 611.232(c),

unless the on-site inspection was conducted by the Agency. If the inspection was

conducted by the Agency, the Agency must provide a copy of its report to the

supplier.

e) Reporting health threats.

1) Each system, upon discovering that a waterborne disease outbreak

potentially attributable to that water system has occurred, must report that

occurrence to the Agency as soon as possible, but no later than by the end

of the next business day.

2) If at any time the turbidity exceeds 5 NTU, the system must consult with

the Agency as soon as practical, but no later than 24 hours after the

exceedance exceedence is known, in accordance with the public

notification requirements under Section 611.903(b)(3).

3) If at any time the RDC falls below 0.2 mg/L in the water entering the

distribution system, the system must notify the Agency as soon as

possible, but no later than by the end of the next business day. The system

also must notify the Agency by the end of the next business day whether

or not the RDC was restored to at least 0.2 mg/L within four hours.

BOARD NOTE: Derived from 40 CFR 141.75(a) (1999), as amended at 65 Fed. Reg. 26022

(May 4, 2000) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.262 Filtered PWSs: Reporting and Recordkeeping

A supplier that uses a surface water source or a groundwater source under the direct influence of

surface water and provides filtration treatment must report monthly to the Agency the

information specified in this Section.

a) Turbidity measurements as required by Section 611.533(a) must be reported

within ten days after the end of each month the supplier serves water to the

public. Information that must be reported includes:

1) The total number of filtered water turbidity measurements taken during

the month.

2) The number and percentage of filtered water turbidity measurements taken

during the month which that are less than or equal to the turbidity limits

specified in Section 611.250 for the filtration technology being used.

3) The date and value of any turbidity measurements taken during the month

which that exceed 5 NTU.

Disinfection information specified in Section 611.533 must be reported to the

Agency within ten days after the end of each month the supplier serves water to

the public. Information that must be reported includes:

For each day, the lowest measurement of RDC in mg/L in water entering

the distribution system.

The date and duration of each period when the RDC in water entering the

distribution system fell below 0.2 mg/L and when the Agency was notified

of the occurrence.

The following information on the samples taken in the distribution system

in conjunction with total coliform monitoring pursuant to Sections

611.240 through 611.242:

Number of instances where the RDC is measured;

Number of instances where the RDC is not measured but HPC is

measured;

Number of instances where the RDC is measured but not detected

and no HPC is measured;

Number of instances where no RDC is detected and where HPC is

greater than 500/ml;

Number of instances where the RDC is not measured and HPC is

greater than 500/ml;

For the current and previous month the supplier serves water to the

public,the value of “V” in the following formula:

(

)

(

)

1 0 0 c +d +e

where:

a =

Value in subsection (b)(3)(A) of this Section

b =

Value in subsection (b)(3)(B) of this Section

c =

Value in subsection (b)(3)(C) of this Section

d =

Value in subsection (b)(3)(D) of this Section

e = Value in subsection (b)(3)(E) of this Section

G) Subsections (b)(3)(A) through (b)(3)(F) of this Section do not

apply if the Agency determines, pursuant to Section 611.213, that a

supplier has no means for having a sample analyzed for HPC.

c) Reporting health threats.

1) Each supplier, upon discovering that a waterborne disease outbreak

potentially attributable to that water system has occurred, must report that

occurrence to the Agency as soon as possible, but no later than by the end

of the next business day.

2) If at any time the turbidity exceeds 5 NTU, the supplier must consult with

the Agency as soon as practical, but no later than 24 hours after the

exceedance exceedence is known, in accordance with the public

notification requirements under Section 611.903(b)(3).

3) If at any time the residual falls below 0.2 mg/L in the water entering the

distribution system, the supplier must notify the Agency as soon as

possible, but no later than by the end of the next business day. The

supplier also must notify the Agency by the end of the next business day

whether or not the residual was restored to at least 0.2 mg/L within four

hours.

BOARD NOTE: Derived from 40 CFR 141.75(b) (1999), as amended at 65 Fed. Reg. 26022

(May 4, 2000) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART F: MAXIMUM CONTAMINANT LEVELS (MCLs) AND

MAXIMUM RESIDUAL DISINFECTANT LEVELS (MRDLs)

Section 611.301 Revised MCLs for Inorganic Chemicals

a) This subsection corresponds with 40 CFR 141.62(a), reserved by USEPA. This

statement maintains structural consistency with USEPA rules.

b) The MCLs in the following table apply to CWSs. Except for fluoride, the MCLs

also apply to NTNCWSs. The MCLs for nitrate, nitrite, and total nitrate and

nitrite also apply to transient non-CWSs.

Contaminant MCL

Units

Antimony 0.006

mg/L

Asbestos 7

MFL

Barium 2

mg/L

Beryllium 0.004

mg/L

Cadmium 0.005

mg/L

Chromium 0.1

mg/L

Cyanide (as free CN

) 0.2 mg/L

Fluoride 4.0

mg/L

Mercury 0.002

mg/L

Nitrate (as N)

10. mg/L

Nitrite (as N)

1. mg/L

Total Nitrate and Nitrite(as N) 10. mg/L

Selenium 0.05

mg/L

Thallium 0.002

mg/L

BOARD NOTE: See Section 611.300(d) for an elevated nitrate level for

non-CWSs. USEPA removed and reserved the MCL for nickel on June

29, 1995, at 60 Fed. Reg. 33932, as a result of a judicial order in Nickel

Development Institute v. EPA, No. 92-1407, and Specialty Steel Industry

of the U.S. v. Browner, No. 92-1410 (D.C. Cir. Feb. 23 & Mar. 6, 1995),

while retaining the contaminant, analytical methodology, and detection

limit listings for this contaminant.

c) USEPA has identified the following as BAT for achieving compliance with the

MCL for the inorganic contaminants identified in subsection (b) above of this

Section, except for fluoride:

Contaminant BAT(s)

Antimony C/F

Asbestos C/F

DDF

Barium IX

LIME

Beryllium AA

C/F

LIME

Cadmium C/F

LIME

Chromium C/F

LIME, BAT for Cr(III) only

Cyanide IX

Cl2

Mercury C/F, BAT only if influent Hg concentrations less than or

equal to (

≤

) 10

g/L

GAC

LIME, BAT only if influent Hg concentrations

≤

g/L

RO, BAT only if influent Hg concentrations

≤

g/L

Nickel IX

LIME

Nitrate IX

Nitrite IX

Selenium AAL

C/F, BAT for Se(IV) only

LIME

Thallium AAL

Abbreviations

AAL Activated alumina

C/F Coagulation/filtration

DDF Direct and diatomite filtration

GAC Granular activated carbon

IX Ion exchange

LIME Lime softening

RO Reverse osmosis

CC Corrosion control

ED Electrodialysis

Cl2 Oxidation (chlorine)

UV Ultraviolet irradiation

BOARD NOTE: Derived from 40 CFR 141.62 (1995) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.330

Radium and Gross Alpha Particle ActivityMaximum Contaminant Levels

for Radionuclides

The following are the MCLs for radium-226, radium-228 and gross alpha particle radioactivity:

Combined radium-226 and radium-228 - 5 pCi/L.

Gross alpha particle activity (including radium-226 but excluding radon and

uranium) - 15 pCi/L.

a) This subsection corresponds with 40 CFR 141.66(a), marked reserved by USEPA.

This statement maintains structural consistency with USEPA rules.

b) MCL for combined radium-226 and –228. The maximum contaminant level for

combined radium-226 and radium-228 is 5 pCi/L. The combined radium-226 and

radium-228 value is determined by the addition of the results of the analysis for

radium-226 and the analysis for radium-228.

c) MCL for gross alpha particle activity (excluding radon and uranium). The

maximum contaminant level for gross alpha particle activity (including radium-

226 but excluding radon and uranium) is 15 pCi/L.

d) Effective December 8, 2003, MCL for beta particle and photon radioactivity.

1) The average annual concentration of beta particle and photon radioactivity

from man-made radionuclides in drinking water must not produce an

annual dose equivalent to the total body or any internal organ greater than

4 millirem/year (mrem/year).

2) Except for the radionuclides listed in the following table, the

concentration of man-made radionuclides causing 4 mrem total body or

organ dose equivalents must be calculated on the basis of two liters per

day drinking water intake, using the 168-hour data list set forth in

“Maximum Permissible Body Burdens and Maximum Permissible

Concentrations of Radionuclides in Air and in Water for Occupational

Exposure,” incorporated by reference in Section 611.102, available from

the NTIS. If two or more radionuclides are present, the sum of their

annual dose equivalent to the total body or to any organ must not exceed 4

mrem/year.

Average Annual Concentrations Assumed to Produce a Total Body or

Organ Dose of 4 mrem/yr

Radionuclide Critical organ

pCi per liter

1. Tritium Total body 20,000

2. Strontium-90 Bone Marrow

e) MCL for uranium. Effective December 8, 2003, the maximum contaminant level

for uranium is 30

g/L.

f) Compliance dates for combined radium-226 and -228, gross alpha particle

activity, gross beta particle and photon radioactivity, and uranium: Effective

December 8, 2003, a CWS supplier must comply with the MCLs listed in

subsections (b) through (e) of this Section beginning December 8, 2003, and

compliance must be determined in accordance with the requirements of Subpart Q

of this Part. Compliance with reporting requirements for the radionuclides under

Appendices A, G, and H of this Part is required before December 8, 2003.

g) Best available technologies (BATs) for radionuclides. USEPA has identified the

technologies indicated in the following table as the BAT for achieving

compliance with the MCLs for combined radium-226 and -228, uranium, gross

alpha particle activity, and beta particle and photon radioactivity.

BAT for Combined Radium-226 and Radium-228, Uranium, Gross Alpha Particle

Activity, and Beta Particle and Photon Radioactivity

Contaminant BAT

1. Combined radium-226 and radium-

228

Ion exchange, reverse osmosis, lime

softening.

2. Uranium

Ion exchange, reverse osmosis, lime

softening, coagulation/filtration.

3. Gross alpha particle activity

(excluding Radon and Uranium)

Reverse osmosis.

4. Beta particle and photon

radioactivity

Ion exchange, reverse osmosis.

h) Small systems compliance technologies list for radionuclides.

List of Small Systems Compliance Technologies for Radionuclides and

Limitations to Use

Unit technologies Limitations

(see footnotes)

Operator skill level

required

Raw water quality

range and

considerations

1. Ion exchange

(IE)

(a) Intermediate

All ground waters.

2. Point of use

(POU

) IE

(b) Basic

All ground waters.

3. Reverse osmosis

(RO)

usually require pre-

filtration.

4. POU

RO (b) Basic Surface

waters

usually require pre-

filtration.

5. Lime softening (d) Advanced All waters.

6. Green sand

filtration

(e) Basic

7. Co-precipitation

with Barium

sulfate

(f) Intermediate to

Advanced

Ground waters with

suitable water

quality.

8. Electrodialysis/

electrodialysis

reversal

Basic to

Intermediate

All ground waters.

9. Pre-formed

hydrous

Manganese

oxide filtration

(g) Intermediate

All ground waters.

10. Activated

alumina

(a), (h) Advanced

All ground waters;

competing anion

concentrations may

affect regeneration

frequency.

11. Enhanced

coagulation/

filtration

(i) Advanced

Can treat a wide

range of water

qualities.

National Research Council (NRC). “Safe Water from Every Tap: Improving

Water Service to Small Communities,” National Academy Press, Washington,

D.C. 1997.

A POU, or “point-of-use” technology is a treatment device installed at a

single tap used for the purpose of reducing contaminants in drinking water at

that one tap. POU devices are typically installed at the kitchen tap.

BOARD NOTE: USEPA refers the reader to the notice of data availability

(NODA) at 66 Fed. Reg. 21576 (April 21, 2000) for more details.

Limitations Footnotes: Technologies for Radionuclides:

(a) The regeneration solution contains high concentrations of the contaminant

ions. Disposal options should be carefully considered before choosing this

technology.

(b) When POU devices are used for compliance, programs for long-term

operation, maintenance, and monitoring must be provided by water utility to

ensure proper performance.

this technology.

BOARD NOTE: In corresponding 40 CFR 141.66, Table C, footnote c states

in part as follows: “See other RO limitations described in the SWTR

Compliance Technologies Table.” Table C was based in significant part on

“Table 13.—Technologies for Radionuclides” that appears at 63 Fed. Reg.

42032 at 42043 (August 6, 1998), which refers to “Table 2.—SWTR

Compliance Technology Table: Filtration.” That Table 2 lists the limitations

on RO as follows:

Blending (combining treated water with untreated raw water)

cannot be practiced at risk of increasing microbial concentrations

in finished water.

Post-disinfection recommended as a safety measure and for

residual maintenance.

Post-treatment corrosion control will be needed prior to

distribution.

63 Fed. Reg. at 42036.

(d) The combination of variable source water quality and the complexity of the

water chemistry involved may make this technology too complex for small

surface water systems.

(e) Removal efficiencies can vary depending on water quality.

(f) This technology may be very limited in application to small systems. Since

the process requires static mixing, detention basins, and filtration, it is most

applicable to systems with sufficiently high sulfate levels that already have a

suitable filtration treatment train in place.

(g) This technology is most applicable to small systems that already have

filtration in place.

(h) Handling of chemicals required during regeneration and pH adjustment may

be too difficult for small systems without an adequately trained operator.

(i) Assumes modification to a coagulation/filtration process already in place.

Compliance Technologies by System Size Category for Radionuclide NPDWRs

Compliance

technologies

for system size

categories (population served)

Contaminant 25-500 501-3,300 3,300-10,000

1. Combined radium-226

and radium-228

1, 2, 3, 4, 5, 6,

7, 8, 9

1, 2, 3, 4, 5, 6,

7, 8, 9

1, 2, 3, 4, 5, 6,

7, 8, 9

2. Gross alpha particle

activity

3, 4 3,

4 3,

3. Beta particle activity

and photon activity

1, 2, 3, 4

4. Uranium

1, 2, 4, 10, 11

1, 2, 3, 4, 5, 10,

Note:

Numbers correspond to those technologies found listed in the table, “List

of Small Systems Compliance Technologies for Radionuclides and Limitations to

Use,” set forth above.

BOARD NOTE: Derived from 40 CFR 141.15 (1989) 141.66, as added at 65

Fed. Reg. 76748 (December 7, 2000), effective December 8, 2003.

(Source: Former Section 611.330 repealed and new Section 611.330 adopted at 25 Ill. Reg.

________, effective ______________________)

Section 611.331 Beta Particle and Photon Radioactivity

The following provisions apply until December 8, 2003:

a) The average annual concentration of beta particle and photon radio-activity from

man-made radionuclides in drinking water must not produce an annual dose

equivalent to the total body or any internal organ greater than 4 mrem/year.

b) Except for the radionuclides listed below, the concentration of man-made

radionuclides causing 4 mrem total body or organ dose equivalents must be

calculated on the basis of a 2 liter per day drinking water intake using the 168

hour data 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. If two or more radionuclides are present, the sum of their

annual dose equivalent to the total body or to any organ must not exceed 4

mrem/year.

AVERAGE ANNUAL CONCENTRATIONS ASSUMED TO

PRODUCE A TOTAL BODY OR ORGAN DOSE OF 4 mrem/year

Radionuclide Critical

Organ pCi/L

Tritium Total

body

20,000

Strontium-90 Bone

marrow 8

BOARD NOTE: Derived from 40 CFR 141.16 (1989), as removed at 65

Fed. Reg. 76745 (December 7, 2000), effective December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART G: LEAD AND COPPER

Section 611.350 General Requirements

a) Applicability and Scope

1) Applicability. The requirements of this Subpart constitute national

primary drinking water regulations for lead and copper. This Subpart

applies to all community water systems (CWSs) and non-transient, non-

community water systems (NTNCWSs).

2) Scope. This Subpart 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, the following terms shall have

the following meanings:

“Action level” means that concentration of lead or copper in water

computed pursuant to subsection (c) below of this Section that determines,

in some cases, the treatment requirements of this Subpart which 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

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 6 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) (1994) (2000)

(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) (1994) (2000).

“Monitoring period” means any of the six-month periods of time during

which a supplier must complete a cycle of monitoring under this Subpart.

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

structure”.”

“90th percentile level” means that concentration of lead or copper

contaminant exceeded by 10 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 shall must be determined pursuant to subsection (c)(3)

below of this Section.

BOARD NOTE: Derived from 40 CFR 141.80(c) (1994) (2000).

“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)

(1994) (2000).

“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

6 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 (1994) (2000).

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

shall

must compute the 90th percentile lead and copper levels as

follows:

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 shall 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) above of this

Section is the 90th percentile contaminant level.

D) For suppliers that collect 5 five samples per six-month monitoring

period, the 90th percentile is computed by taking the average of

the highest and second highest concentrations.

d) Corrosion Control Treatment Requirements:

1) All suppliers shall 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) above of this Section.

e) Source water treatment requirements. Any supplier whose system exceeds the

lead or copper action level shall 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 shall must complete the lead service line

replacement requirements contained in Section 611.354.

g) Public education requirements. Any supplier whose system exceeds the lead

action level shall must implement the public education requirements contained in

Section 611.355.

h) Monitoring and analytical requirements. Suppliers shall 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 in compliance with Sections 611.356, 611.357,

611.358, and 611.359.

i) Reporting requirements. Suppliers shall must report to the Agency any

information required by the treatment provisions of this Subpart and Section

611.360.

j) Recordkeeping requirements. Suppliers shall 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, including conditions imposed by the

Agency by special exception permit (SEP) pursuant to these provisions, shall will

constitute a violation of the national primary drinking water regulations for lead

or copper.

BOARD NOTE: Derived from 40 CFR 141.80 (1994) (2000).

(Source: Amended at 25 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.

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 criteriaspecified 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

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 complete a round of

monitoring pursuant to this subsection (b) no later than September

30, 2000.

BOARD NOTE: USEPA specified September 30, 2000 at 40 CFR

141.81(b)(3)(ii) (1999), as amended at 65 Fed. Reg. 2004 (Jan. 12,

2000) (2000). In order to remain identical-in-substance and to

retain State primacy, the Board retained this date despite the fact

that this Section became effective after that date.

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 change in treatment or the

addition of a new source. 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.

D) As of July 12, 2001, 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

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 exceedance 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.

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 conduct initial monitoring (Sections

611.356(d)(1) and 611.357(b)) during two consecutive six-month

monitoring periods on or before January 1, 1993.

BOARD NOTE: USEPA specified January 1, 1993 at 40 CFR

141.81(d)(1) (1999) (2000). In order to remain identical-in-substance and

to retain State primacy, the Board retained this date despite the fact that

this Section became effective after that date.

2) Step 2: The supplier must complete corrosion control studies (Section

611.352(c)) on or before July 1, 1994.

3) Step 3: The Agency must approve 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 install optimal corrosion control treatment

(Section 611.352(e)) by January 1, 1997.

5) Step 5: The supplier must complete follow-up sampling (Sections

611.356(d)(2) and 611.357(c)) by January 1, 1998.

6) Step 6: The Agency must review 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 it exceeds

one of the action levels.

2) Step 2: Within 12 months after 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 following timeframes:

A) for medium-sized systems, within 18 months after such supplier

exceeds the lead action level or the copper action level,

B) for small systems, within 24 months after 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 (1999), as amended at 65 Fed. Reg. 2004 (Jan. 12,

2000) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.353 Source Water Treatment

Suppliers shall must complete the applicable source water monitoring and treatment

requirements (described in the referenced portions of subsection (b) below 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 shall must complete lead and copper and source water monitoring

(Section 611.358(b)) and make a treatment recommendation to the

Agency (subsection (b)(1) below of this Section) within 6 six months after

exceeding the pertinent action level.

2) Step 2: The Agency shall must, by a SEP issued pursuant to Section

611.110, make a determination regarding source water treatment

(subsection (b)(2) below of this Section) within 6 six months after

submission of monitoring results under step 1.

3) Step 3: If the Agency requires installation of source water treatment, the

supplier shall must install that treatment (subsection (b)(3) below of this

Section) within 24 months after completion of step 2.

4) Step 4: The supplier shall 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 shall 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) below

of this Section) within 6 six months after completion of step 4.

6) Step 6: The supplier shall must operate in compliance with the Agency-

specified lead and copper MPCs (subsection (b)(4) below 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 shall must recommend in writing to

the Agency the installation and operation of one of the source water

treatments listed in subsection (b)(2) below 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 shall 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

shall 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 shall 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 shall must properly

install and operate the source water treatment approved by the Agency

under subsection (b)(2) above of this Section.

4) Agency review of source water treatment and specification of maximum

permissible source water levels (MPCs).

A) The Agency shall 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.

B) Based on its review, the Agency shall 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 shall must reflect the contaminant removal capability of the

treatment properly operated and maintained.

C) The Agency shall must explain the basis for its decision under

subsection (b)(4)(B) above of this Section.

5) Continued operation and maintenance. Each supplier shall 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) above 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) above of this Section, or the lead and copper MPCs under

subsection (b)(4) above of this Section.

B) A request for modification by a supplier shall 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)

above of this Section shall 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) above 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.

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) above 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:

A) the Agency has failed to issue a treatment determination by the

applicable deadline contained in subsection (a) above 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 (1992) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.356 Tap Water Monitoring for Lead and Copper

a) Sample 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.

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).

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) (1999) (2000). 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) (1999) (2000). 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) (1999) (2000).

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.

BOARD NOTE: Subsection (a)(3)(D) was derived from segments

of 40 CFR 141.86(a)(6) (1999) (2000). 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) (1999) (2000).

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) (1999) (2000).

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) (1999) (2000).

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) (1999) (2000).

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

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) (1999), as amended

at 65 Fed. Reg. 2007 (Jan. 12, 2000) (2000).

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) (1999) (2000).

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) (1999) (2000).

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) (1999), as amended

at 65 Fed. Reg. 2007 (Jan. 12, 2000) (2000).

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.

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) (1999), as renumbered

and amended at 65 Fed. Reg. 2007 (Jan. 12, 2000) (2000).

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, 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

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), that does not have

enough taps that can supply first-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 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. The Agency may, by a SEP issued

pursuant to Section 611.110, specify sampling locations when a system is

conducting reduced monitoring.

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 monitor during

each of two consecutive six-month monitoring periods before the

date specified in Section 611.351(d)(5).

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 the date 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 the date specified

in Section 611.353(a)(4).

3) Monitoring after the Agency specification of water quality parameter

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.

B) SEP allowing reduction to annual for suppliers maintaining water

quality control parameters.

i) 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 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) above of

this Section if it receives written approval from the Agency

in the form of a SEP granted pursuant to Section 611.110.

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

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 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 of

monitoring 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.

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 month months of June, July,

August, or 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.

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).

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 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 parameters within the

distribution system in accordance with Section 611.357(d).

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 the

Agency in writing in accordance with Section 611.360(a)(3). 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

resume reduced monitoring on an annual frequency.

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)(i) through (d)(4)(H)(iii)

are derived from 40 CFR 141.86(d)(4)(vi)(B)(

) through

(d)(4)(vi)(B)(

), as added at 65 Fed. Reg. 2009 (January 12, 2000)

(2000), 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;

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

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 which that contain lead

plasticizers, or plastic service lines which 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 and/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.

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.

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 subsection subsections (d)(1) through (d)(4) of this

Section, as appropriate.

C) If a 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). 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 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 of this Part.

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 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:

BOARD NOTE: Corresponding 40 CFR 141.86(g)(7) sets forth the April

11, 2000 date. The Board has retained that date to maintain consistency

with the federal requirements, despite the fact that this subsection (g)(7)

became effective after that date.

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 has 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

meets 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: Corresponding 40 CFR 141.86(g)(7)(ii) sets

forth the September 30, 2000 date. The Board has retained that

date to maintain consistency with the federal requirements, despite

the fact that this subsection (g)(7)(B) became effective after that

date.

BOARD NOTE: Derived from 40 CFR 141.86 (1999), as amended at 65 Fed. Reg. 2007 (Jan. 12,

2000) (2000).

(Source: Amended at 25 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

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

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

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 systems. 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 six-month period to begin on the date the State specifies the

optimal values under Section 611.352(f).

2) Small and medium-sized systems. 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

exceedance exceedence, the end of the applicable six-month period under

this subsection must coincide with the end 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.

ii) Triennial 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 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.

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 during two consecutive monitoring

periods:

i) 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) 611.359(a)(1)(B),

ii) 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 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).

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

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 systems. 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 (1999), as amended at 65 Fed. Reg. 2010 (Jan. 12,

2000) (2000).

(Source: Amended at 25 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.

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 which 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 exceedance 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.

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 six months after the exceedance exceedence.

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 the

deadline 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.

B) A SWS or mixed system supplier must collect samples annually,

the first annual monitoring period to begin on the date on which

the Agency makes its determination pursuant to Section

611.353(b)(4) or 611.353(b)(2).

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) 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) 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.

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 (1999), as amended at 65 Fed. Reg. 2012 (Jan. 12,

2000) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART K: GENERAL MONITORING AND ANALYTICAL

REQUIREMENTS

Section 611.510 Special Monitoring for Unregulated Contaminants

a) Monitoring for Phase I unregulated contaminants.

1) All CWS and NTNCWS suppliers shall must begin monitoring for the

contaminants listed in subsection (a)(5) no later than the the following

dates:

A) Less than 3300 persons served: January 1, 1991.

B) 3300 to 10,000 persons served: January 1, 1989.

C) More than 10,000 persons served: January 1, 1988.

2) SWS and mixed system suppliers shall must sample at points in the

distribution system representative of each water source or at entry points

to the distribution system after any application of treatment. The

minimum number of samples is one year of quarterly samples per water

source.

3) GWS suppliers shall must sample at points of entry to the distribution

system representative of each well after any application of treatment. The

minimum number of samples is one sample per entry point to the

distribution system.

4) The Agency may issue a SEP pursuant to Section 610.110 to require a

supplier to use a confirmation sample for results that it finds dubious for

whatever reason. The Agency must state its reasons for issuing the SEP if

the SEP is Agency-initiated.

5) List of Phase I unregulated chemical contaminants:

Bromobenzene

Bromodichloromethane

Bromoform

Bromomethane

Chlorobenzene

Chlorodibromomethane

Chloroethane

Chloroform

Chloromethane

o-Chlorotoluene

p-Chlorotoluene

Dibromomethane

m-Dichlorobenzene

1,1-Dichloroethane

1,3-Dichloropropane

2,2-Dichloropropane

1,1-Dichloropropene

1,3-Dichloropropene

1,1,1,2-Tetrachloroethane

1,1,2,2-Tetrachloroethane

1,2,3-Trichloropropane

6) This subsection corresponds with 40 CFR 141.40(f), reserved by USEPA.

This statement maintains structural consistency with USEPA rules.

7) Analyses performed pursuant to subsection (a) shall must be conducted

using the following USEPA Organic Methods: Methods 502.2 or 524.2 or

their equivalent as approved by the Agency, except that analyses for

bromodichloromethane, bromoform, chlorodibromomethane, and

chloroform may also be performed using USEPA Organic Methods:

Method 551, and analyses for 1,2,3-trichloropropane may also be

performed using USEPA Organic Methods: Method 504.1, all of which

are incorporated by reference in Section 611.102.

BOARD NOTE: Subsection (b) (a) derived from 40 CFR 141.40(a) through (m)

(1995) (2000). The Board has adopted no counterpart to 40 CFR 141.40(h),

which the Board has codified at subsection (c) below of this Section; 141.40(i),

which pertains to the ability of suppliers to grandfather data up until a date long

since expired; 141.41(j), an optional USEPA provision relating to monitoring 15

additional contaminants that USEPA does not require for state programs;

141.40(k), which pertains to notice to the Agency by smaller suppliers up until a

date long since expired in lieu of sampling; 141.40(l), which the Board has

adopted at subsection (d) below of this Section; and 141.40(m), an optional

provision that pertains to composite sampling. Otherwise, the structure of this

Section directly corresponds with 40 CFR 141.40(a) through (m) (1995) (2000).

b) Monitoring for Phase V unregulated contaminants. Monitoring of the unregulated

organic contaminants listed in subsection (b)(11) below of this Section and the

unregulated inorganic contaminants listed in subsection (b)(12) below of this

Section shall must be conducted as follows:

1) Each CWS and NTNCWS supplier shall must take four consecutive

quarterly samples at each sampling point for each contaminant listed in

subsection (b)(11) below of this Section and report the results to the

Agency. Monitoring must be completed by December 31, 1995.

2) Each CWS and NTNCWS supplier shall must take one sample at each

sampling point for each contaminant listed in subsection (b)(12) below of

this Section and report the results to the Agency. Monitoring must be

completed by December 31, 1995.

3) Each CWS and NTNCWS supplier may apply to the Agency for a SEP

pursuant to Section 611.110 that releases it from any of the requirements

of subsections (b)(1) and (b)(2) above of this Section.

4) The Agency shall must grant a SEP pursuant to Section 611.110 as

follows:

A) From any requirement of subsection (b)(1) above of this Section

based on consideration of the factors set forth at Section

611.110(e), and

B) From any requirement of subsection (b)(2) above of this Section if

previous analytical results indicate contamination would not occur,

provided this data was collected after January 1, 1990.

5) A GWS supplier shall must take a minimum of one sample at every entry

point to the distribution system that is representative of each well after

treatment (“sampling point”).

6) A SWS or mixed system supplier shall must take a minimum of one

sample at points in the distribution system that are representative of each

source or at each entry point to the system after treatment (“sampling

point”).

7) If the system draws water from more than one source and sources are

combined before distribution, the supplier shall must sample at an entry

point during periods of normal operating conditions (when water

representative of all sources is being used).

8) The Agency may issue a SEP pursuant to Section 610.110 to require a

supplier to use a confirmation sample for results that it finds dubious for

whatever reason. The Agency must state its reasons for issuing the SEP if

the SEP is Agency-initiated.

9) Suppliers

shall

must take samples at the same sampling point unless the

Agency has granted a SEP allowing another sampling point because

conditions make another sampling point more representative of the water

from each source or treatment plant.

BOARD NOTE: Subsection (b)(9) above of this Section corresponds with

duplicate segments of 40 CFR 141.40(n)(5) and (n)(6) (1995) (2000),

which correspond with subsections (b)(5) and (b)(6) above of this Section.

The Board has adopted no counterpart to 40 CFR 141.40(n)(9), an

optional provision that pertains to composite sampling. Otherwise, the

structure of this Section directly corresponds with 40 CFR 141.40(n)

(1995) (2000).

10) Instead of performing the monitoring required by this subsection, a CWS

and NTNCWS supplier serving fewer than 150 service connections may

send a letter to the Agency stating that the PWS is available for sampling.

This letter must be sent to the Agency by January 1, 1994. The supplier

shall must not send such samples to the Agency, unless requested to do so

by the Agency.

11) List of Phase V unregulated organic contaminants with methods required

for analysis (all methods are from USEPA Organic Methods unless

otherwise noted; all are incorporated by reference in Section 611.102):

Contaminant

USEPA Organic Methods

Aldicarb

531.1, Standard Methods, 18th ed.:

Method 6610

Aldicarb sulfone

531.1, Standard Methods, 18th ed.:

Method 6610

Aldicarb sulfoxide 531.1, Standard Methods, 18th ed.:

Method 6610

Aldrin

505, 508, 508.1, 525.2

Butachlor 507,

525.2

Carbaryl

531.1, Standard Methods, 18th ed.:

Method 6610

Dicamba

515.1, 515.2, 555

Dieldrin

505, 508, 508.1, 525.2

3-Hydroxycarbofuran 531.1, Standard Methods, 18th ed.:

Method 6610

Methomyl

531.1, Standard Methods, 18th ed.:

Method 6610

Metolachlor

507, 508.1, 525.2

Metribuzin

507, 508.1, 525.2

Propachlor

508, 508.1, 525.2

12) List of unregulated inorganic contaminants (all methods indicated are

incorporated by reference in Section 611.102):

Contaminant Methods

Sulfate

USEPA Environmental Inorganic

Methods: Methods 300.0, 375.2;

ASTM Method D 4327-91; Standard

Methods, 18th ed.: Methods 4110,

4500-SO4

F, 4500-SO4

C & 4500-

SO4

BOARD NOTE: Subsection (b) derived from 40 CFR 141.40(n) (1995) (2000).

c) Analyses performed pursuant to this Section must be conducted by a laboratory

certified pursuant to Section 611.646(q).

BOARD NOTE: Subsection (c) derived from 40 CFR 141.40 (h) (1995) (2000).

d) All CWS and NTNCWS suppliers shall must repeat the monitoring required by

this Section no less frequently than every five years, starting from the dates

specified in subsections (a)(1) and (b)(2) above of this Section.

BOARD NOTE: Subsection (d) derived from 40 CFR 141.40 (l) (1995) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART L: MICROBIOLOGICAL MONITORING AND ANALYTICAL

REQUIREMENTS

Section 611.521 Routine Coliform Monitoring

a) Suppliers

shall

must collect total coliform samples at sites which that are

representative of water throughout the distribution system according to a written

sample siting plan, which must be approved by special exception permit.

b) The monitoring frequency for total coliforms for CWSs is based on the population

served by the CWS, as set forth in Section 611.Table A.

c) The monitoring frequency for total coliforms for non-CWSs is as follows:

1) A non-CWS using only groundwater (except groundwater under the direct

influence of surface water, as determined in Section 611.212) and serving

1,000 persons or fewer shall must monitor each calendar quarter that the

system provides water to the public, except that the Agency shall must

reduce this monitoring frequency if a sanitary survey shows that the

system is free of sanitary defects. Beginning June 29, 1994, the Agency

cannot reduce the monitoring frequency for a non-CWS using only

groundwater (except groundwater under the direct influence of surface

water) and serving 1,000 persons or fewer to less than once per year.

2) A non-CWS using only groundwater (except groundwater under the direct

influence of surface water) and serving more than 1,000 persons during

any month shall must monitor at the same frequency as a like-sized CWS,

as specified in subsection (b) above of this Section, except the Agency

shall must reduce this monitoring frequency for any month the system

serves 1,000 persons or fewer. the The Agency cannot reduce the

monitoring to less than once per year. For systems using groundwater

under the direct influence of surface water, subsection (c)(4) below of this

Section applies.

3) A non-CWS using surface water, in total or in part, shall must monitor at

the same frequency as a like-sized CWS, as specified in subsection (b)

above of this Section, regardless of the number of persons it serves.

4) A non-CWS using groundwater under the direct influence of surface

water, shall must monitor at the same frequency as a like-sized CWS, as

specified in subsection (b) above of this Section. The supplier shall must

begin monitoring at this frequency beginning six months after Public

Health determines that the groundwater is under the direct influence of

surface water.

d) The supplier shall must collect samples at regular time intervals throughout the

month, except that a supplier which that uses only groundwater (except

groundwater under the direct influence of surface water) and serves 4,900 persons

or fewer, may collect all required samples on a single day if they are taken from

different sites.

e) A PWS that uses surface water or groundwater under the direct influence of

surface water, and does not practice filtration in compliance with Subpart B of

this Part, shall must collect at least one sample near the first service connection

each day the turbidity level of the source water, measured as specified in Section

611.532(b), exceeds 1 NTU. This sample must be analyzed for the presence of

total coliforms. When one or more turbidity measurements in any day exceed 1

NTU, the supplier shall must collect this coliform sample within 24 hours of the

first exceedance exceedence, unless the Agency has determined, by special

exception permit, that the supplier, for logistical reasons outside the supplier’s

control, cannot have the sample analyzed within 30 hours of collection. Sample

results from this coliform monitoring must be included in determining compliance

with the MCL for total coliforms in Section 611.325.

f) Special purpose samples, such as those taken to determine whether disinfection

practices are sufficient following pipe placement, replacement or repair, must not

be used to determine compliance with the MCL for total coliforms in Section

611.325.

BOARD NOTE: Derived from 40 CFR 141.21(a) (1989), as amended at 54 Fed. Reg. 27562,

June 29, 1989 (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART N: INORGANIC MONITORING AND ANALYTICAL

REQUIREMENTS

Section 611.601 Monitoring Frequency

Monitoring shall must be conducted as follows:

a) Required sampling.

1) Each supplier shall must take a minimum of one sample at each sampling

point at the times required by Section 611.610 beginning in the initial

compliance period.

2) Each sampling point must produce samples that are representative of the

water from each source after treatment or from each treatment plant, as

required by subsection (b) below of this Section. The total number of

sampling points must be representative of the water delivered to users

throughout the PWS.

3) The supplier shall must take each sample at the same sampling point

unless conditions make another sampling point more representative of

each source or treatment plant and the Agency has granted a SEP pursuant

to subsection (b)(5) below of this Section.

b) Sampling points.

1) Sampling points for GWSs. Unless otherwise provided by SEP, a GWS

supplier shall must take at least one sample from each of the following

points: each entry point that is representative of each well after treatment.

2) Sampling points for SWSs and mixed systems. Unless otherwise provided

by SEP, a SWS or mixed system supplier shall must take at least one

sample from each of the following points:

A) Each entry point after the application of treatment; or

B) A point in the distribution system that is representative of each

source after treatment.

3) If a system draws water from more than one source, and the sources are

combined before distribution, the supplier shall must sample at an entry

point during periods of normal operating conditions when water is

representative of all sources being used.

4) Additional sampling points. The Agency shall must, by SEP, designate

additional sampling points in the distribution system or at the consumer’s

tap if it determines that such samples are necessary to more accurately

determine consumer exposure.

5) Alternative sampling points. The Agency shall must, by SEP, approve

alternate sampling points if the supplier demonstrates that the points are

more representative than the generally required point.

c) This subsection corresponds with 40 CFR 141.23(a)(4), an optional USEPA

provision relating to compositing of samples that USEPA does not require for

state programs. This statement maintains structural consistency with USEPA

rules.

d) The frequency of monitoring for the following contaminants must be in

accordance with the following Sections:

1) Asbestos: Section 611.602;

2) Antimony, barium, beryllium, cadmium, chromium, cyanide, fluoride,

mercury, nickel, selenium, and thallium: Section 611.603;

3) Nitrate: Section 611.604; and

4) Nitrite: Section 611.605.

BOARD NOTE: Derived from 40 CFR 141.23(a) and (c) (1995) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.602 Asbestos Monitoring Frequency

The frequency of monitoring conducted to determine compliance with the MCL for asbestos in

Section 611.301 is as follows:

a) Unless the Agency has determined under subsection (c) that the PWS is not

vulnerable, each CWS and NTNCWS supplier shall must monitor for asbestos

during the first compliance period of each compliance cycle, beginning January 1,

1993.

b) CWS suppliers may apply to the Agency, by way of an application for a SEP

under Section 611.110, for a determination that the CWS is not vulnerable based

on consideration of the criteria listed in subsection (c) below of this Section.

c) The Agency shall must determine that the CWS is “not vulnerable” if the CWS is

not vulnerable to contamination either from asbestos in its source water, from

corrosion of asbestos-cement pipe, or from both, based on a consideration of the

following factors:

1) Potential asbestos contamination of the water source; and

2) The use of asbestos-cement pipe for finished water distribution and the

corrosive nature of the water.

d) A SEP based on a determination that a CWS is not vulnerable to asbestos

contamination expires at the end of the compliance cycle for which it was issued.

e) A supplier of a PWS vulnerable to asbestos contamination due solely to corrosion

of asbestos-cement pipe shall must take one sample at a tap served by asbestos-

cement pipe and under conditions where asbestos contamination is most likely to

occur.

f) A supplier of a PWS vulnerable to asbestos contamination due solely to source

water shall must monitor in accordance with Section 611.601.

g) A supplier of a PWS vulnerable to asbestos contamination due both to its source

water supply and corrosion of asbestos-cement pipe shall must take one sample at

a tap served by asbestos-cement pipe and under conditions where asbestos

contamination is most likely to occur.

h) A supplier that exceeds the MCL, as determined in Section 611.609, shall must

monitor quarterly beginning in the next quarter after the violation occurred.

i) Reduction of quarterly monitoring.

1) The Agency shall must issue a SEP pursuant to Section 611.110 that

reduces the monitoring frequency to that specified by subsection (a) if it

determines that the sampling point is reliably and consistently below the

MCL.

2) The request must, at a minimum, include the following information:

A) For a GWS: two quarterly samples.

B) For an SWS or mixed system: four quarterly samples.

3) In issuing a SEP, the Agency shall must specify the level of the

contaminant upon which the “reliably and consistently” determination was

based. All SEPs that allow less frequent monitoring based on an Agency

“reliably and consistently” determination shall must include a condition

requiring the supplier to resume quarterly monitoring pursuant to

subsection (h) above of this Section if it violates the MCL specified by

Section 611.609.

j) If the Agency determines that data collected after January 1, 1990 are generally

consistent with the requirements of this Section, it may grant a SEP pursuant to

Section 611.110 that allows the supplier to use those data to satisfy the

requirements of this Section for the compliance period beginning January 1, 1993.

BOARD NOTE: Derived from 40 CFR 141.23(b) (1993) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.603 Inorganic Monitoring Frequency

The frequency of monitoring conducted to determine compliance with the revised MCLs in

Section 611.301 for antimony, barium, beryllium, cadmium, chromium, cyanide, fluoride,

mercury, nickel, selenium, and thallium is as follows:

a) Suppliers

shall

must take samples at each sampling point, beginning in the initial

compliance period, as follows:

1) For GWSs: at least one sample during each compliance period;

2) For SWSs and mixed systems: at least one sample each year.

BOARD NOTE: Derived from 40 CFR 141.23(c)(1) (1994) (2000).

b) SEP Application.

1) The supplier may apply to the Agency for a SEP that allows reduction

from the monitoring frequencies specified in subsection (a) above of this

Section pursuant to subsections (d) through (f) below of this Section and

Section 611.110.

2) The supplier may apply to the Agency for a SEP that relieves it of the

requirement for monitoring cyanide pursuant to subsections (d) through (f)

below of this Section and Section 611.110 if it can demonstrate that its

system is not vulnerable due to a lack of any industrial source of cyanide.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(2) and (c)(6) (1994) (2000).

c) SEP Procedures. The Agency shall must review the request pursuant to the SEP

procedures of Section 611.110 based on consideration of the factors in subsection

(e) below of this Section.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(6) (1994) (2000).

d) Standard for SEP reduction in monitoring. The Agency shall must grant a SEP

that allows a reduction in the monitoring frequency if the supplier demonstrates

that all previous analytical results were less than the MCL, provided the supplier

meets the following minimum data requirements:

1) For GWS suppliers: a minimum of three rounds of monitoring.

2) For SWS and mixed system suppliers: annual monitoring for at least three

years.

3) At least one sample must have been taken since January 1, 1990.

4) A supplier that uses a new water source is not eligible for a SEP until it

completes three rounds of monitoring from the new source.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(4) (1994) (2000).

e) Standard for SEP monitoring conditions. As a condition of any SEP, the Agency

shall must require that the supplier take a minimum of one sample during the term

of the SEP. In determining the appropriate reduced monitoring frequency, the

Agency shall must consider:

1) Reported concentrations from all previous monitoring;

2) The degree of variation in reported concentrations; and

3) Other factors may affect contaminant concentrations, such as changes in

groundwater pumping rates, changes in the CWSs configuration, the

CWS’s operating procedures, or changes in stream flows or

characteristics.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(3) and (c)(5) (1994) (2000).

f) SEP Conditions and Revision.

1) A SEP will expire at the end of the compliance cycle for which it was

issued.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(3) (1994) (2000).

2) In issuing a SEP, the Agency shall must specify the level of the

contaminant upon which the “reliably and consistently” determination was

based. A SEP must provide that the Agency will review and, where

appropriate, revise its determination of the appropriate monitoring

frequency when the supplier submits new monitoring data or when other

data relevant to the supplier’s appropriate monitoring frequency become

available.

BOARD NOTE: Drawn from 40 CFR 141.23(c)(6) (1994) (2000).

g) A supplier that exceeds the MCL for antimony, barium, beryllium, cadmium,

chromium, cyanide, fluoride, mercury, nickel, selenium, or thallium, as

determined in Section 611.609, shall must monitor quarterly for that contaminant,

beginning in the next quarter after the violation occurred.

BOARD NOTE: Derived from 40 CFR 141.23(c)(7) (1994) (2000).

h) Reduction of quarterly monitoring.

1) The Agency shall must grant a SEP pursuant to Section 611.110 that

reduces the monitoring frequency to that specified by subsection (a) above

of this Section if it determines that the sampling point is reliably and

consistently below the MCL.

2) A request for a SEP must include the following minimal information:

A) For a GWS: two quarterly samples.

B) For an SWS or mixed system: four quarterly samples.

3) In issuing the SEP, the Agency shall must specify the level of the

contaminant upon which the “reliably and consistently” determination was

based. All SEPs that allow less frequent monitoring based on an Agency

“reliably and consistently” determination shall must include a condition

requiring the supplier to resume quarterly monitoring for any contaminant

pursuant to subsection (g) above of this Section if it violates the MCL

specified by Section 611.609 for that contaminant.

BOARD NOTE: Derived from 40 CFR 141.23(c)(8) (1994) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.609 Determining Compliance

Compliance with the MCLs of Sections 611.300 or 611.301 (as appropriate) must be determined

based on the analytical result(s) obtained at each sampling point.

a) For suppliers that monitor at a frequency greater than annual, compliance with the

MCLs for antimony, asbestos, barium, beryllium, cadmium, chromium, cyanide,

fluoride, mercury, nickel, selenium, or thallium is determined by a running annual

average at each sampling point.

1) If the average at any sampling point is greater than the MCL, then the

supplier is out of compliance.

2) If any one sample would cause the annual average to be exceeded, then

the supplier is out of compliance immediately.

3) Any sample below the method detection limit must be calculated at zero

for the purpose of determining the annual average.

BOARD NOTE: The “method detection limit” is different from the

“detection limit”, ” as set forth in Section 611.600. The “method detection

limit” is the level of contaminant that can be determined by a particular

method with a 95 percent degree of confidence, as determined by the

method outlined in 40 CFR 136, appendix Appendix B, incorporated by

reference at Section 611.102.

100

b) For suppliers that monitor annually or less frequently, compliance with the MCLs

for antimoney antimony, asbestos, barium, beryllium, cadmium, chromium,

cyanide, fluoride, mercury, nickel, selenium, or thallium is determined by the

level of the contaminant at any sampling point. If a confirmation sample is taken,

the determination of compliance will be based on the average of the two samples.

c) Compliance with the MCLs for nitrate and nitrite is determined based on one

sample if the levels of these contaminants are below the MCLs. If the levels of

nitrate or nitrite exceed the MCLs in the initial sample, Section 611.606 requires

confirmation sampling, and compliance is determined based on the average of the

initial and confirmation samples.

d) When the portion of the distribution system that is out of compliance is separable

from other parts of the distribution system and has no interconnections, the

supplier may give the public notice required by Subpart T only to persons served

by that portion of the distribution system not in compliance.

BOARD NOTE: Derived from 40 CFR 141.23(i) (1994) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART Q: RADIOLOGICAL MONITORING AND ANALYTICAL

REQUIREMENTS

Section 611.720 Analytical Methods

a) The methods specified below, incorporated by reference in Section 611.102, are

to be used to determine compliance with Sections Section 611.330 and 611.331,

except in cases where alternative methods have been approved in accordance with

Section 611.480.

1) Gross Alpha and Beta:

A) ASTM Method 302;

B) Standard Methods:

i) Method 302; or

ii) Method 7110 B;

C) USEPA Interim Radiochemical Methods: page 1;

D) USEPA Radioactivity Methods: Method 900;

101

E) USEPA Radiochemical Analyses: page 1;

F) USEPA Radiochemistry Methods: Method 00-01; or

G) USGS Methods: Method R-1120-76

2) Gross Alpha:

A) Standard Methods: Method 7110 C; or

B) USEPA Radiochemistry Methods: Method 00-02.

3) Radium-226:

A) ASTM Methods:

i) Method D-2460-90; or

ii) Method D-3454-91;

B) New York Radium Method;

C) Standard Methods:

i) Method 304;

ii) Method 305;

iii) Method 7500-Ra B; or

iv) Method 7500-Ra C;

D) USDOE Methods: Method Ra-05;

E) USEPA Interim Radiochemical Methods: pages 13 and 16;

F) USEPA Radioactivity Methods: Methods 903, 903.1;

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

102

ii) Method R-1141-76.

4) Radium-228:

A) Standard Methods:

i) Method 304; or

ii) Method 7500-Ra D;

B) New York Radium Method;

C) USEPA Interim Radiochemical Methods: page 24;

D) USEPA Radioactivity Methods: Method 904;

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.

5) Uranium:

A) ASTM Methods:

i) Method D-2907;

ii) Method D-2907-91;

iii) Method D 3972-90; or

iv) Method D 5174-91;

B) USEPA Radioactivity Methods: Methods 908, 908.1;

C) USEPA Radiochemical Analyses: page 33;

D) USEPA Radiochemistry Methods: Method 00-07; or

E) USGS Methods:

i) Method R-1180-76;

103

ii) Method R-1181-76; or

iii) Method R-1182-76.

6) Cesium:

A) ASTM Methods:

i) Method D 2459-72; or

ii) Method D 3649-91;

B) Standard Methods:

i) Method 7120 (19th ed.); or

ii) Method 7500-Cs B;

C) USDOE Methods: Method 4.5.2.3;

D) USEPA Interim Radiochemical Methods: page 4;

E) USEPA Radioactivity Methods: Methods 901, 901.1;

F) USEPA Radiochemical Analyses: page 92; or

G) USGS Methods:

i) Method R-1110-76; or

ii) Method R-1111-76.

7) Iodine:

A) ASTM Methods:

i) D 3649-91; or

ii) D 4785-88;

B) Standard Methods:

i) Method 7120 (19th ed.);

ii) Method 7500-I B;

104

iii) Method 7500-I C; or

iv) Method 7500-I D;

C) USDOE Methods: Method 4.5.2.3;

D) USEPA Interim Radiochemical Methods: pages 6, 9;

E) USEPA Radiochemical Analyses: page 92; or

F) USEPA Radioactivity Methods: Methods 901.1, 902.

8) Strontium-89 & 90:

A) Standard Methods:

i) Method 303; or

ii) Method 7500-Sr B;

B) USDOE Methods:

i) Method Sr-01; or

ii) Method Sr-02;

C) USEPA Interim Radiochemical Methods: page 29;

D) USEPA Radioactivity Methods: Method 905;

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 D 4107-91;

B) Standard Methods:

i) Method 306; or

ii) Method 7500-3H B;

105

C) USEPA Interim Radiochemical Methods: page 34;

D) USEPA Radioactivity Methods: Method 906;

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 D 3649-91; or

ii) Method D 4785-88;

B) Standard Methods:

i) Method 7120 (19th ed.);

ii) Method 7500-Cs B; or

iii) Method 7500-I B;

C) USDOE Method: Method 4.5.2.3;

D) USEPA Radioactivity Methods: Methods 901, 901.1, 902;

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) 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.

106

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 (1.96

sigma where sigma is the standard deviation of the net counting rate of the

sample).

1) To determine compliance with Section 611.330(a)(b), (c), and (e), the

detection limit must not exceed 1 pCi/L. To determine compliance with

Section 611.330(b) the detection limit must not exceed 3 pCi/L. the

concentrations set forth in the following table:

Contaminant Detection Limit

Gross alpha particle

activity

3 pCi/L

Radium-226 1 pCi/L

Radium-228 1 pCi/L

Uranium None

BOARD NOTE: Derived from 40 CFR 141.25(c) Table B, as added at 65

Fed. Reg. 76745 (December 7, 2000), effective December 8, 2003.

2) To determine compliance with Section 611.331 611.330(d), the detection

limits must not exceed the concentrations listed in that Section. the

following table:

The detection limits for man-made beta particle and photon emitters to

determine the applicability of Section 611.881 are 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 B (1998) C

(2000), as renumbered at 65 Fed. Reg. 76745 (December 7, 2000),

effective December 8, 2003.

d) To judge compliance with the MCLs listed in Sections Section 611.330 and

611.331, 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.

107

BOARD NOTE: Derived from 40 CFR 141.25 (1998) (2000), as amended at 65

Fed. Reg. 76745 (December 7, 2000), effective December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.731 Gross Alpha

Monitoring requirements for gross alpha particle activity, radium-226, and radium-228, and

uranium are as follows:

a) Effective December 8, 2003, a community water system (CWS) supplier must

conduct initial monitoring to determine compliance with Section 611.330(b), (c),

and (e) by December 31, 2007. For the purposes of monitoring for gross alpha

particle activity, radium-226, radium-228, uranium, and beta particle and photon

radioactivity in drinking water, “detection limit” is defined as in Section

611.720(c).

1) Applicability and sampling location for an existing CWS supplier. An

existing CWS supplier using groundwater, surface water, or both

groundwater and surface water (for the purpose of this Section hereafter

referred to as a supplier) must sample at every entry point to the

distribution system that is representative of all sources being used

(hereafter called a sampling point) under normal operating conditions.

The supplier must take each sample at the same sampling point unless

conditions make another sampling point more representative of each

source or the Agency has designated a distribution system location, in

accordance with subsection (b)(2)(C) of this Section.

2) Applicability and sampling location for a new CWS supplier. A new

CWS supplier or a CWS supplier that uses a new source of water must

begin to conduct initial monitoring for the new source within the first

quarter after initiating use of the source. A CWS supplier must conduct

more frequent monitoring when ordered by the Agency in the event of

possible contamination or when changes in the distribution system or

treatment processes occur that may increase the concentration of

radioactivity in finished water.

b) Initial monitoring: Effective December 8, 2003, a CWS supplier must conduct

initial monitoring for gross alpha particle activity, radium-226, radium-228, and

uranium as follows:

1) A CWS supplier without acceptable historical data, as defined in

subsection (b)(2) of this Section, must collect four consecutive quarterly

samples at all sampling points before December 31, 2007.

108

2) Grandfathering of data: A CWS supplier may use historical monitoring

data collected at a sampling point to satisfy the initial monitoring

requirements for that sampling point, under the following situations.

A) To satisfy initial monitoring requirements, a CWS supplier having

only one entry point to the distribution system may use the

monitoring data from the last compliance monitoring period that

began between June 2000 and December 8, 2003.

B) To satisfy initial monitoring requirements, a CWS supplier with

multiple entry points and having appropriate historical monitoring

data for each entry point to the distribution system may use the

monitoring data from the last compliance monitoring period that

began between June 2000 and December 8, 2003.

C) To satisfy initial monitoring requirements, a CWS supplier with

appropriate historical data for a representative point in the

distribution system may use the monitoring data from the last

compliance monitoring period that began between June 2000 and

December 8, 2003, provided that the Agency finds that the

historical data satisfactorily demonstrate that each entry point to

the distribution system is expected to be in compliance based upon

the historical data and reasonable assumptions about the variability

of contaminant levels between entry points. The Agency must

make its finding in writing, by a SEP issued pursuant to Section

611.110, indicating how the data conforms to the requirements of

this subsection (b)(2).

3) For gross alpha particle activity, uranium, radium-226, and radium-228

monitoring, the Agency may, by a SEP issued pursuant to Section

611.110, waive the final two quarters of initial monitoring for a sampling

point if the results of the samples from the previous two quarters are

below the detection limit.

4) If the average of the initial monitoring results for a sampling point is

above the MCL, the supplier must collect and analyze quarterly samples at

that sampling point until the system has results from four consecutive

quarters that are at or below the MCL, unless the supplier enters into

another schedule as part of a formal compliance agreement with the

Agency.

c) Reduced monitoring: Effective December 8, 2003, the Agency may allow a CWS

supplier to reduce the future frequency of monitoring from once every three years

to once every six or nine years at each sampling point, based on the following

criteria:

109

1) If the average of the initial monitoring results for each contaminant (i.e.,

gross alpha particle activity, uranium, radium-226, or radium-228) is

below the detection limit specified in the table at Section 611.720(c)(1),

the supplier must collect and analyze for that contaminant using at least

one sample at that sampling point every nine years.

2) For gross alpha particle activity and uranium, if the average of the initial

monitoring results for each contaminant is at or above the detection limit

but at or below one-half the MCL, the supplier must collect and analyze

for that contaminant using at least one sample at that sampling point every

six years. For combined radium-226 and radium-228, the analytical

results must be combined. If the average of the combined initial

monitoring results for radium-226 and radium-228 is at or above the

detection limit but at or below one-half the MCL, the supplier must collect

and analyze for that contaminant using at least one sample at that

sampling point every six years.

3) For gross alpha particle activity and uranium, if the average of the initial

monitoring results for each contaminant is above one-half the MCL but at

or below the MCL, the supplier must collect and analyze at least one

sample at that sampling point every three years. For combined radium-

226 and radium-228, the analytical results must be combined. If the

average of the combined initial monitoring results for radium-226 and

radium-228 is above one-half the MCL but at or below the MCL, the

supplier must collect and analyze at least one sample at that sampling

point every three years.

4) A supplier must use the samples collected during the reduced monitoring

period to determine the monitoring frequency for subsequent monitoring

periods (e.g., if a supplier's sampling point is on a nine year monitoring

period, and the sample result is above one-half the MCL, then the next

monitoring period for that sampling point is three years).

5) If a supplier has a monitoring result that exceeds the MCL while on

reduced monitoring, the supplier must collect and analyze quarterly

samples at that sampling point until the supplier has results from four

consecutive quarters that are below the MCL, unless the supplier enters

into another schedule as part of a formal compliance agreement with the

Agency.

d) Compositing: Effective December 8, 2003, to fulfill quarterly monitoring

requirements for gross alpha particle activity, radium-226, radium-228, or

uranium, a supplier may composite up to four consecutive quarterly samples from

a single entry point if analysis is done within a year after the first sample. The

analytical results from the composited sample must be treated as the average

analytical result to determine compliance with the MCLs and the future

110

monitoring frequency. If the analytical result from the composited sample is

greater than one-half the MCL, the Agency may, by a SEP issued pursuant to

Section 611.110, direct the supplier to take additional quarterly samples before

allowing the supplier to sample under a reduced monitoring schedule.

e) Effective December 8, 2003, a gross alpha particle activity measurement may be

substituted for the required radium-226 measurement, provided that the measured

gross alpha particle activity does not exceed 5 pCi/L. A gross alpha particle

activity measurement may be substituted for the required uranium measurement

provided that the measured gross alpha particle activity does not exceed 15 pCi/L.

1) The gross alpha measurement must have a confidence interval of 95%

(1.65

, where

is the standard deviation of the net counting rate of the

sample) for radium-226 and uranium.

2) When a supplier uses a gross alpha particle activity measurement in lieu of

a radium-226 or uranium measurement, the gross alpha particle activity

analytical result will be used to determine the future monitoring frequency

for radium-226 and/or uranium.

3) If the gross alpha particle activity result is less than detection, one-half the

detection limit will be used to determine compliance and the future

monitoring frequency.

af) Compliance

Until December 8, 2003, compliance must be based on the analysis

of an annual composite of four consecutive quarterly samples or the average of

the analyses of four samples obtained at quarterly intervals.

1) A gross alpha particle activity measurement may be substituted for the

required radium-226 and radium-228 analysis, provided that the measured

gross alpha particle activity does not exceed 5 pCi/L at a confidence level

of 95 percent (1.65 sigma where sigma is the standard deviation of the net

counting rate of the sample). In localities where radium-228 may be

present in drinking water, the Agency may, by special exception permit,

require radium-226 or radium-228 analyses if it determines that the gross

alpha particle activity exceeds 2 pCi/L.

2) When the gross alpha particle activity exceeds 5 pCi/L, the same or an

equivalent sample must be analyzed for radium-226. If the concentration

of radium-226 exceeds 3 pCi/L the same or an equivalent sample must be

analyzed for radium-228.

bg) See Section 611.100(e).

ch)

Until December 8, 2003, CWS suppliers must monitor at least once every four

years following the procedure required by subsection (a) (f) of this Section.

111

When an annual record taken in conformance with subsection (a) (f) of this

Section has established that the average annual concentration is less than half the

MCLs established by Section 611.330, the Agency shall, by special exception

permit, substitute analysis of a single sample for the quarterly sampling procedure

required by subsection (a) (f) of this Section.

1) The Agency shall, by special exception permit, require more frequent

monitoring in the vicinity of mining or other operations that may

contribute alpha particle radioactivity to either surface or groundwater

sources of drinking water.

2) A CWS supplier must monitor in conformance with subsection (a) (f) of

this Section for one year after the introduction of a new water source. The

Agency shall, by special exception permit, require more frequent

monitoring in the event of possible contamination or when changes in the

distribution system or treatment process occur that may increase the

concentration of radioactivity in finished water.

3) The Agency shall, by special exception permit, require a CWS supplier

using two or more sources having different concentrations of radioactivity

to monitor source water, in addition to water from a free-flowing tap.

4) The Agency must not require monitoring for radium-228 to determine

compliance with Section 611.330 after the initial period, provided that the

average annual concentration of radium-228 has been assayed at least

once using the quarterly sampling procedure required by subsection (a) (f)

of this Section.

5) The Agency must require the CWS supplier to conduct annual monitoring

if the radium-226 concentration exceeds 3 pCi/L.

di)

Until December 8, 2003, If if the average annual MCL for gross alpha particle

activity or total radium as set forth in Section 611.330 is exceeded, the CWS

supplier must give notice to the Agency and notify the public as required by

Subpart V. Monitoring at quarterly intervals must be continued until the annual

average concentration no longer exceeds the MCL or until a monitoring schedule

as a condition to a variance, adjusted standard or enforcement action becomes

effective.

BOARD NOTE: Derived Subsections (a) through (e) derive from 40 CFR 141.26(a) (1999)

(2000), as amended at 65 Fed. Reg. 26022, May 4, 2000 76745 (December 7, 2000), effective

December 8, 2003. Subsections (f) through (i) derive from 40 CFR 141.26(a), as effective until

December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________ effective ______________________)

112

Section 611.732

Manmade Beta Particle and Photon Radioactivity

Monitoring and compliance requirements for manmade radioactivity in CWSs are as follows:.

To determine compliance with the maximum contaminant levels in Section 611.330(d) for beta

particle and photon radioactivity, a supplier must monitor at a frequency as follows:

a) Effective December 8, 2003, a CWS supplier (either a surface water or

groundwater supplier) designated by the Agency, by a SEP issued pursuant to

Section 611.110, as vulnerable must sample for beta particle and photon

radioactivity. A supplier must collect quarterly samples for beta emitters and

annual samples for tritium and strontium-90 at each entry point to the distribution

system (hereafter called a sampling point), beginning within one quarter after

being notified by the Agency. A supplier already designated by the Agency must

continue to sample until the Agency reviews and either reaffirms or removes the

designation, by a SEP issued pursuant to Section 611.110.

1) If the gross beta particle activity minus the naturally occurring potassium-

40 beta particle activity at a sampling point has a running annual average

(computed quarterly) less than or equal to 50 pCi/L (screening level), the

Agency may reduce the frequency of monitoring at that sampling point to

once every three years. A supplier must collect all samples required in

subsection (a) of this Section during the reduced monitoring period.

2) For a supplier in the vicinity of a nuclear facility, the Agency may allow

the CWS supplier to utilize environmental surveillance data collected by

the nuclear facility in lieu of monitoring at the supplier's entry points,

where the Agency determines if such data is applicable to a particular

water system, by a SEP issued pursuant to Section 611.110. In the event

that there is a release from a nuclear facility, a supplier that is using

surveillance data must begin monitoring at the community water supplier's

entry points in accordance with subsection (b)(1) of this Section.

b) Effective December 8, 2003, a CWS supplier (either a surface water or

groundwater supplier) designated by the Agency, by a SEP issued pursuant to

Section 611.110, as utilizing waters contaminated by effluents from nuclear

facilities must sample for beta particle and photon radioactivity. A supplier must

collect quarterly samples for beta emitters and iodine-131 and annual samples for

tritium and strontium-90 at each entry point to the distribution system (hereafter

called a sampling point), beginning within one quarter after being notified by the

Agency. A supplier already designated by the Agency as a supplier using waters

contaminated by effluents from nuclear facilities must continue to sample until

the Agency reviews and either reaffirms or removes the designation, by a SEP

issued pursuant to Section 611.110.

113

1) Quarterly monitoring for gross beta particle activity must be based on the

analysis of monthly samples or the analysis of a composite of three

monthly samples.

BOARD NOTE: In corresponding 40 CFR 141.26(b)(2)(i), USEPA

recommends the use of a composite of three monthly samples.

2) For iodine-131, a composite of five consecutive daily samples must be

analyzed once each quarter. The Agency may, by a SEP issued pursuant

to Section 611.110, order more frequent monitoring for iodine-131 where

it is identified in the finished water.

3) Annual monitoring for strontium-90 and tritium must be conducted by

means of the analysis of a composite of four consecutive quarterly

samples or analysis of four quarterly samples.

BOARD NOTE: In corresponding 40 CFR 141.26(b)(2)(iii), USEPA

recommends the analysis of four consecutive quarterly samples.

4) If the gross beta particle activity minus the naturally occurring potassium-

40 beta particle activity at a sampling point has a running annual average

(computed quarterly) less than or equal to 15 pCi/L, the Agency may, by a

SEP issued pursuant to Section 611.110, reduce the frequency of

monitoring at that sampling point to once every three years. The supplier

must collect all samples required in subsection (b) of this Section during

the reduced monitoring period.

5) For a supplier in the vicinity of a nuclear facility, the Agency may allow

the CWS to utilize environmental surveillance data collected by the

nuclear facility in lieu of monitoring at the system's entry points, where

the Agency determines, by a SEP issued pursuant to Section 611.110, that

such data is applicable to the particular water system. In the event that

there is a release from a nuclear facility, a supplier that uses such

surveillance data must begin monitoring at the CWS's entry points in

accordance with subsection (b) of this Section.

c) Effective December 8, 2003, a CWS supplier designated by the Agency to

monitor for beta particle and photon radioactivity can not apply to the Agency for

a waiver from the monitoring frequencies specified in subsection (a) or (b) of this

Section.

d) Effective December 8, 2003, a CWS supplier may analyze for naturally occurring

potassium-40 beta particle activity from the same or equivalent sample used for

the gross beta particle activity analysis. A supplier is allowed to subtract the

potassium-40 beta particle activity value from the total gross beta particle activity

value to determine if the screening level is exceeded. The potassium-40 beta

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particle activity must be calculated by multiplying elemental potassium

concentrations (in mg/L) by a factor of 0.82.

e) Effective December 8, 2003, if the gross beta particle activity minus the naturally

occurring potassium-40 beta particle activity exceeds the screening level, an

analysis of the sample must be performed to identify the major radioactive

constituents present in the sample and the appropriate doses must be calculated

and summed to determine compliance with Section 611.330(d)(1), using the

formula in Section 611.330(d)(2). Doses must also be calculated and combined

for measured levels of tritium and strontium to determine compliance.

f) Effective December 8, 2003, a supplier must monitor monthly at the sampling

points that exceeds the maximum contaminant level in Section 611.330(d)

beginning the month after the exceedence occurs. A supplier must continue

monthly monitoring until the supplier has established, by a rolling average of

three monthly samples, that the MCL is being met. A supplier that establishes

that the MCL is being met must return to quarterly monitoring until it meets the

requirements set forth in subsection (a)(2) or (b)(1) of this Section.

ag)

Until December 8, 2003, CWSs using surface water sources and serving more

than 100,000 persons and such other CWSs as the Agency, by special exception

permit, requires must monitor for compliance with Section 611.331 by analysis of

a composite of four consecutive quarterly samples or analysis of four quarterly

samples. Compliance with Section 611.331 is assumed without further analysis if

the average annual concentration of gross beta particle activity is less than 50

pCi/L and if the average annual concentrations of tritium and strontium-90 are

less than those listed in Section 611.331, provided that if both radionuclides are

present the sum of their annual dose equivalents to bone marrow must not exceed

4 millirem/year.

1) If the gross beta particle activity exceeds 50 pCi/L, an analysis of the

sample must be performed to identify the major radioactive constituents

present and the appropriate organ and total body doses must be calculated

to determine compliance with Section 611.331.

2) If the MCLs are exceeded, the Agency shall, by special exception permit,

require the supplier to conduct additional monitoring to determine the

concentration of man-made radioactivity in principal watersheds.

3) The Agency shall, pursuant to subsection (d) (j) of this Section, by special

exception permit, require suppliers of water utilizing only groundwater to

monitor for man-made radioactivity.

bh) See Section 611.100(e).

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ci)

Until December 8, 2003, CWS suppliers shall monitor at least every four years

following the procedure in subsection (a) (g) of this Section.

dj) The

Until December 8, 2003, the Agency shall must, by special exception permit,

require any CWS supplier utilizing waters contaminated by effluents from nuclear

facilities to initiate quarterly monitoring for gross beta particle and iodine-131

radioactivity and annual monitoring for strontium-90 and tritium.

1) Quarterly monitoring for gross beta particle activity must be based on the

analysis of monthly samples or the analysis of a composite of three

monthly samples. If the gross beta particle activity in a sample exceeds 15

pCi/L, the same or an equivalent sample must be analyzed for strontium-

89 and cesium-134. If the gross beta particle activity exceeds 50 pCi/L,

an analysis of the sample must be performed to identify the major

radioactive constitutents present and the appropriate organ and total body

doses must be calculated to determine compliance with Section 611.331.

2) For iodine-131, a composite of five consecutive daily samples must be

analyzed once each quarter. The Agency shall, by special exception

permit, require more frequent monitoring when iodine-131 is identified in

the finished water.

3) The Agency shall, by special exception permit, require annual monitoring

for strontium-90 and tritium by means of the analysis of a composite of

four consecutive quarterly samples or analysis of four quarterly samples.

4) The Agency shall, by special exception permit, allow the substitution of

environmental surveillance data taken in conjunction with a nuclear

facility for direct monitoring of manmade radioactivity by the supplier

where the Agency determines such data is applicable to the CWS.

ek) If

Until December 8, 2003, if the average annual MCL for man-made

radioactivity set forth in Section 611.331 is exceeded, the CWS supplier shall

give notice to the Agency and to the public as required by Subpart T. Monitoring

at monthly intervals must be continued until the concentration no longer exceeds

the MCL or until a monitoring schedule as a condition to a variance, adjusted

standard or enforcement action becomes effective.

BOARD NOTE: Derived Subsections (a) through (f) derive from 40 CFR 141.26(b) (1999)

(2000), as amended at 65 Fed. Reg. 26022, May 4, 2000 76745 (December 7, 2000), effective

December 8, 2003. Subsections (g) through (k) derive from 40 CFR 141.26(b), as effective until

December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________ effective ______________________)

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Section 611.733 General Monitoring and Compliance Requirements

The following requirements apply effective December 8, 2003:

a) The Agency may, by a SEP issued pursuant to Section 611.110, require more

frequent monitoring than specified in Sections 611.731 and 611.732 or may

require confirmation samples. The results of the initial and confirmation samples

will be averaged for use in a compliance determination.

b) Each PWS supplier must monitor at the time designated by the Agency during

each compliance period.

c) Compliance: compliance with Section 611.330(b) through (e) must be

determined based on the analytical results obtained at each sampling point. If one

sampling point is in violation of an MCL, the supplier is in violation of the MCL.

1) For a supplier monitoring more than once per year, compliance with the

MCL is determined by a running annual average at each sampling point.

If the average of any sampling point is greater than the MCL, then the

supplier is out of compliance with the MCL.

2) For a supplier monitoring more than once per year, if any sample result

would cause the running average to exceed the MCL at any single

sampling point, the supplier is immediately out of compliance with the

MCL.

3) a supplier must include all samples taken and analyzed under the

provisions of this Section and Sections 611.731 and 611.732 in

determining compliance, even if that number is greater than the minimum

required.

4) If a supplier does not collect all required samples when compliance is

based on a running annual average of quarterly samples, compliance will

be based on the running average of the samples collected.

5) If a sample result is less than the detection limit, zero will be used to

calculate the annual average, unless a gross alpha particle activity is being

used in lieu of radium-226 and/or uranium. If the gross alpha particle

activity result is less than detection, one-half the detection limit will be

used to calculate the annual average.

d) The Agency may, by a SEP issued pursuant to Section 611.110, allow the supplier

to delete results of obvious sampling or analytic errors.

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e) If the MCL for radioactivity set forth in Section 611.330 (b) through (e) is

exceeded, the operator of a CWS must give notice to the Agency pursuant to

Section 611.840 and to the public as required by Subpart V of this Part.

BOARD NOTE: Derived from 40 CFR 141.26(c), as added at 65 Fed. Reg. 76745 (December 7,

2000), effective December 8, 2003.

(Source: Added at 25 Ill. Reg. ________ effective ______________________)

SUBPART R: ENHANCED FILTRATION AND DISINFECTION

Section 611.745 Reporting and Recordkeeping Requirements

In addition to the reporting and recordkeeping requirements in Sections 611.261 and 611.262, a

public water system subject to the requirements of this Subpart that provides conventional

filtration treatment or direct filtration must report monthly to the Agency the information

specified in subsections (a) and (b) of this Section beginning January 1, 2002. In addition to the

reporting and recordkeeping requirements in Sections 611.261 and 611.262, a public water

system subject to the requirements of this Subpart that provides filtration approved under Section

611.743(b) must report monthly to the Agency the information specified in subsection (a) of this

Section beginning January 1, 2002. The reporting in subsection (a) of this Section is in lieu of

the reporting specified in Section 611.262(a).

a) Turbidity measurements, as required by Section 611.743, must be reported within

ten days after the end of each month the system serves water to the public.

Information that must be reported is the following:

1) The total number of filtered water turbidity measurements taken during

the month.

2) The number and percentage of filtered water turbidity measurements taken

during the month which that are less than or equal to the turbidity limits

specified in Section 611.743 (a) or (b).

3) The date and value of any turbidity measurements taken during the month

that exceed 1 NTU for systems using conventional filtration treatment or

direct filtration, or that exceed the maximum level under Section

611.743(b).

b) Systems must maintain the results of individual filter monitoring taken under

Section 611.744 for at least three years. Systems must report that they have

conducted individual filter turbidity monitoring under Section 611.744 within ten

days after the end of each month the system serves water to the public. Systems

must report individual filter turbidity measurement results taken under Section

611.744 within ten days after the end of each month the system serves water to

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the public only if measurements demonstrate one or more of the conditions in

subsections (b)(1) through (4) of this Section. Systems that use lime softening

may apply to the Agency for alternative exceedence levels for the levels specified

in subsections (b)(1) through (4) of this Section if they can demonstrate that

higher turbidity levels in individual filters are due to lime carryover only and not

due to degraded filter performance.

1) For any individual filter that has a measured turbidity level of greater than

1.0 NTU in two consecutive measurements taken 15 minutes apart, the

system must report the filter number, the turbidity measurement, and the

dates on which the exceedence occurred. In addition, the system must

either produce a filter profile for the filter within seven days after the

exceedence (if the system is not able to identify an obvious reason for the

abnormal filter performance) and report that the profile has been produced

or report the obvious reason for the exceedence.

2) For any individual filter that has a measured turbidity level of greater than

0.5 NTU in two consecutive measurements taken 15 minutes apart at the

end of the first four hours of continuous filter operation after the filter has

been backwashed or otherwise taken offline, the system must report the

filter number, the turbidity, and the dates on which the exceedence

occurred. In addition, the system must either produce a filter profile for

the filter within seven days after the exceedence (if the system is not able

to identify an obvious reason for the abnormal filter performance) and

report that the profile has been produced or report the obvious reason for

the exceedence.

3) For any individual filter that has a measured turbidity level of greater than

1.0 NTU in two consecutive measurements taken 15 minutes apart at any

time in each of three consecutive months, the system must report the filter

number, the turbidity measurement, and the dates on which the

exceedence occurred. In addition, the system must conduct a self-

assessment of the filter within 14 days after the exceedence and report that

the self-assessment was conducted. The self-assessment must consist of at

least the following components: assessment of filter performance;

development of a filter profile; identification and prioritization of factors

limiting filter performance; assessment of the applicability of corrections;

and preparation of a filter self-assessment report.

4) For any individual filter that has a measured turbidity level of greater than

2.0 NTU in two consecutive measurements taken 15 minutes apart at any

time in each of two consecutive months, the system must report the filter

number, the turbidity measurement, and the dates on which the

exceedence occurred. In addition, the system must arrange for the conduct

of a comprehensive performance evaluation by the Agency or a third party

approved by the Agency no later than 30 days following the exceedence

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and have the evaluation completed and submitted to the Agency no later

than 90 days following the exceedence.

c) Additional reporting requirements.

1) If at any time the turbidity exceeds 1 NTU in representative samples of

filtered water in a system using conventional filtration treatment or direct

filtration, the supplier must consult with the Agency as soon as practical,

but no later than 24 hours after the exceedance exceedence is known, in

accordance with the public notification requirements under Section

611.903(b)(3).

2) If at any time the turbidity in representative samples of filtered water

exceeds the maximum level set by the Agency under Section 611.743(b)

for filtration technologies other than conventional filtration treatment,

direct filtration, slow sand filtration, or diatomaceous earth filtration, the

supplier must consult with the Agency as soon as practical, but no later

than 24 hours after the exceedance exceedence is known, in accordance

with the public notification requirements under Section 611.903(b)(3).

BOARD NOTE: Derived from 40 CFR 141.175 (1999), as amended at 65 Fed. Reg. 26035

(May 4, 2000) (2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

SUBPART V: PUBLIC NOTIFICATION OF DRINKING WATER

VIOLATIONS

Section 611.901 General Public Notification Requirements

The requirements of this Subpart V replace former notice requirements.

a) Who must give public notice. Each owner or operator of a public water system (a

CWS, an NTNCWS, or a transient non-CWS) must give notice for all violations

of an NPDWR and for other situations, as listed in this subsection (a). The term

“NPDWR violation” is used in this Subpart V to include violations of an MCL, an

MRDL, a treatment technique, monitoring requirements, or a testing procedure set

forth in this Part. Appendix G to this Part identifies the tier assignment for each

specific violation or situation requiring a public notice.

1) NPDWR violations:

A) A failure to comply with an applicable MCL or MRDL.

B) A failure to comply with a prescribed treatment technique.

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C) A failure to perform water quality monitoring, as required by this

Part.

D) A failure to comply with testing procedures as prescribed by this

Part.

2) Relief equivalent to a variance and exemptions under sections 1415 and

1416 of SDWA:

A) Operation under relief equivalent to a SDWA Section section 1415

variance, under Section 611.111, or a SDWA Section section 1416

exemption, under Section 611.112.

B) A failure to comply with the requirements of any schedule that has

been set under relief equivalent to a SDWA Section section 1415

variance, under Section 611.111, or a SDWA Section section 1415

exemption, under Section 611.112.

3) Special public notices:

A) The occurrence of a waterborne disease outbreak or other

waterborne emergency.

B) An

exceedance

exceedence of the nitrate MCL by a non-CWS,

where granted permission by the Agency under Section

611.300(d).

C) An

exceedance

exceedence of the secondary fluoride standard of

Section 611.858.

D) The availability of unregulated contaminant monitoring data.

E) Other violations and situations determined by the Agency by a

SEP issued pursuant to Section 611.110 to require a public notice

under this Subpart, not already listed in Appendix G.

b) The type of public notice required for each violation or situation. The public

notice requirements of this Subpart V are divided into three tiers, to take into

account the seriousness of the violation or situation and of any potential adverse

health effects that may be involved. The public notice requirements for each

violation or situation listed in subsection (a) of this Section are determined by the

tier to which it is assigned. This subsection (b) provides the definition of each

tier. Appendix G of this Part identifies the tier assignment for each specific

violation or situation.

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1) Tier 1 public notice: required for NPDWR violations and situations with

significant potential to have serious adverse effects on human health as a

result of short-term exposure.

2) Tier 2 public notice: required for all other NPDWR violations and

situations with potential to have serious adverse effects on human health.

3) Tier 3 public notice: required for all other NPDWR violations and

situations not included in Tier 1 and Tier 2.

c) Who must receive notice.

1) Each PWS supplier must provide public notice to persons served by the

water supplier, in accordance with this Subpart V. A PWS supplier that

sells or otherwise provides drinking water to another PWS supplier (i.e., to

a consecutive system) is required to give public notice to the owner or

operator of the consecutive system; the consecutive system supplier is

responsible for providing public notice to the persons it serves.

2) If a PWS supplier has a violation in a portion of the distribution system

that is physically or hydraulically isolated from other parts of the

distribution system, the Agency may allow the system to limit distribution

of the public notice to only persons served by that portion of the system

which that is out of compliance. Permission by the Agency for limiting

distribution of the notice must be granted in writing, by a SEP granted

pursuant to Section 611.110.

3) A copy of the notice must also be sent to the Agency, in accordance with

the requirements under Section 611.840(d).

BOARD NOTE: Derived from 40 CFR 141.201, as added at 65 Fed. Reg. 26035 (May 4, 2000)

(2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.902 Tier 1 Public Notice--Form, Manner, and Frequency of Notice

a) Violations or situations that require a Tier 1 public notice. This subsection (a)

lists the violation categories and other situations requiring a Tier 1 public notice.

Appendix G of this Part identifies the tier assignment for each specific violation

or situation.

1) Violation of the MCL for total coliforms when fecal coliform or E. coli

are present in the water distribution system (as specified in Section

611.325(b)), or when the water supplier fails to test for fecal coliforms or

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E. coli when any repeat sample tests positive for coliform (as specified in

Section 611.525);

2) Violation of the MCL for nitrate, nitrite, or total nitrate and nitrite, as

defined in Section 611.301, or when the water supplier fails to take a

confirmation sample within 24 hours after the supplier’s receipt of the

results from the first sample showing an exceedance exceedence of the

nitrate or nitrite MCL, as specified in Section 611.606(b);

3) Exceedance

Exceedence of the nitrate MCL by a non-CWS supplier,

where permitted to exceed the MCL by the Agency under Section

611.300(d), as required under Section 611.909;

4) Violation of the MRDL for chlorine dioxide, as defined in Section

611.313(a), when one or more samples taken in the distribution system the

day following an exceedance exceedence of the MRDL at the entrance of

the distribution system exceed the MRDL, or when the water supplier

does not take the required samples in the distribution system, as specified

in Section 611.383(c)(2)(A);

5) Violation of the turbidity MCL under Section 141.13(b), where the

Agency determines after consultation that a Tier 1 notice is required or

where consultation does not take place within 24 hours after the supplier

learns of the violation;

6) Violation of the Surface Water Treatment Rule (SWTR) or Interim

Enhanced Surface Water Treatment Rule (IESWTR) treatment technique

requirement resulting from a single exceedance exceedence of the

maximum allowable turbidity limit (as identified in Appendix G), where

the primacy agency determines after consultation that a Tier 1 notice is

required or where consultation does not take place within 24 hours after

the supplier learns of the violation;

7) Occurrence of a waterborne disease outbreak, as defined in Section

611.101, or other waterborne emergency (such as a failure or significant

interruption in key water treatment processes, a natural disaster that

disrupts the water supply or distribution system, or a chemical spill or

unexpected loading of possible pathogens into the source water that

significantly increases the potential for drinking water contamination);

8) Other violations or situations with significant potential to have serious

adverse effects on human health as a result of short-term exposure, as

determined by the Agency by a SEP issued pursuant to Section 611.110.

b) When the Tier 1 public notice is to be provided. Additional steps required. A

PWS supplier must:

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1) Provide a public notice as soon as practical but no later than 24 hours after

the supplier learns of the violation;

2) Initiate consultation with the Agency as soon as practical, but no later than

24 hours after the PWS supplier learns of the violation or situation, to

determine additional public notice requirements; and

3) Comply with any additional public notification requirements (including

any repeat notices or direction on the duration of the posted notices) that

are established as a result of the consultation with the Agency. Such

requirements may include the timing, form, manner, frequency, and

content of repeat notices (if any) and other actions designed to reach all

persons served.

c) The form and manner of the public notice. A PWS supllier must provide the

notice within 24 hours in a form and manner reasonably calculated to reach all

persons served. The form and manner used by the PWS supplier are to fit the

specific situation, but must be designed to reach residential, transient, and non-

transient users of the water system. In order to reach all persons served, a water

supplier is to use, at a minimum, one or more of the following forms of delivery:

1) Appropriate broadcast media (such as radio and television);

2) Posting of the notice in conspicuous locations throughout the area served

by the water supplier;

3) Hand delivery of the notice to persons served by the water supplier; or

4) Another delivery method approved in writing by the Agency by a SEP

issued pursuant to Section 611.110.

BOARD NOTE: Derived from 40 CFR 141.202, as added at 65 Fed. Reg. 26036 (May 4, 2000)

(2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.903 Tier 2 Public Notice--Form, Manner, and Frequency of Notice

a) Violations or situations that require a Tier 2 public notice. This subsection lists

the violation categories and other situations requiring a Tier 2 public notice.

Appendix G to this Part identifies the tier assignment for each specific violation

or situation.

1) All violations of the MCL, MRDL, and treatment technique requirements,

except where a Tier 1 notice is required under Section 611.902(a) or

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where the Agency determines by a SEP issued pursuant to Section

611.110 that a Tier 1 notice is required;

2) Violations of the monitoring and testing procedure requirements, where

the Agency determines by a SEP issued pursuant to Section 611.110 that a

Tier 2 rather than a Tier 3 public notice is required, taking into account

potential health impacts and persistence of the violation; and

3) Failure to comply with the terms and conditions of any relief equivalent to

a SDWA Section 1415 variance or a SDWA Section 1416 exemption in

place.

b) When Tier 2 public notice is to be provided.

1) A PWS supplier must provide the public notice as soon as practical, but no

later than 30 days after the supplier learns of the violation. If the public

notice is posted, the notice must remain in place for as long as the

violation or situation persists, but in no case for less than seven days, even

if the violation or situation is resolved. The Agency may, in appropriate

circumstances, by a SEP issued pursuant to Section 611.110, allow

additional time for the initial notice of up to three months from the date

the supplier learns of the violation. It is not appropriate for the Agency to

grant an extension to the 30-day deadline for any unresolved violation or

to allow across-the-board extensions by rule or policy for other violations

or situations requiring a Tier 2 public notice. Extensions granted by the

Agency must be in writing.

2) The PWS supplier must repeat the notice every three months as long as the

violation or situation persists, unless the Agency determines that

appropriate circumstances warrant a different repeat notice frequency. In

no circumstance may the repeat notice be given less frequently than once

per year. It is not appropriate for the Agency to allow less frequent repeat

notice for an MCL violation under the Total Coliform Rule or a treatment

technique violation under the Surface Water Treatment Rule or Interim

Enhanced Surface Water Treatment Rule. It is also not appropriate for the

Agency to allow across-the-board reductions in the repeat notice

frequency for other ongoing violations requiring a Tier 2 repeat notice.

An Agency determination allowing repeat notices to be given less

frequently than once every three months must be in writing.

3) For the turbidity violations specified in this subsection (b)(3), a PWS

supplier must consult with the Agency as soon as practical but no later

than 24 hours after the supplier learns of the violation, to determine

whether a Tier 1 public notice under Section 611.902(a) is required to

protect public health. When consultation does not take place within the

24-hour period, the water system must distribute a Tier 1 notice of the

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violation within the next 24 hours (i.e., no later than 48 hours after the

supplier learns of the violation), following the requirements under Section

611.902(b) and (c). Consultation with the Agency is required for the

following:

A) Violation of the turbidity MCL under Section 141.320(b); or

B) Violation of the SWTR or IESWTR treatment technique

requirement resulting from a single exceedance exceedence of the

maximum allowable turbidity limit.

c) The form and manner of Tier 2 public notice. A PWS supplier must provide the

initial public notice and any repeat notices in a form and manner that is

reasonably calculated to reach persons served in the required time period. The

form and manner of the public notice may vary based on the specific situation and

type of water system, but it must at a minimum meet the following requirements:

1) Unless directed otherwise by the Agency in writing, by a SEP issued

pursuant to Section 611.110, a CWS supplier must provide notice by:

A) Mail or other direct delivery to each customer receiving a bill and

to other service connections to which water is delivered by the

PWS supplier; and

B) Any other method reasonably calculated to reach other persons

regularly served by the supplier, if they would not normally be

reached by the notice required in subsection (c)(1)(A) of this

Section. Such persons may include those who do not pay water

bills or do not have service connection addresses (e.g., house

renters, apartment dwellers, university students, nursing home

patients, prison inmates, etc.). Other methods may include:

Publication in a local newspaper; delivery of multiple copies for

distribution by customers that provide their drinking water to

others (e.g., apartment building owners or large private

employers); posting in public places served by the supplier or on

the Internet; or delivery to community organizations.

2) Unless directed otherwise by the Agency in writing, by a SEP issued

pursuant to Section 611.110, a non-CWS supplier must provide notice by

the following:

A) Posting the notice in conspicuous locations throughout the

distribution system frequented by persons served by the supplier,

or by mail or direct delivery to each customer and service

connection (where known); and

126

B) Any other method reasonably calculated to reach other persons

served by the system if they would not normally be reached by the

notice required in subsection (c)(2)(A) of this Section. Such

persons may include those served who may not see a posted notice

because the posted notice is not in a location they routinely pass

by. Other methods may include the following: Publication in a

local newspaper or newsletter distributed to customers; use of E-

mail to notify employees or students; or delivery of multiple copies

in central locations (e.g., community centers).

BOARD NOTE: Derived from 40 CFR 141.203, as added at 65 Fed. Reg. 26036 (May 4, 2000)

(2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.904 Tier 3 Public Notice--Form, Manner, and Frequency of Notice

a) Violations or situations that require a Tier 3 public notice. This subsection (a)

lists the violation categories and other situations requiring a Tier 3 public notice.

Appendix G of this Part identifies the tier assignment for each specific violation

or situation.

1) Monitoring violations under this Part, except where a Tier 1 notice is

required under Section 611.902(a) or where the Agency determines by a

SEP issued pursuant to Section 611.110 that a Tier 2 notice is required;

2) Failure to comply with a testing procedure established in this Part, except

where a Tier 1 notice is required under Section 611.902(a) or where the

Agency determines by a SEP issued pursuant to Section 611.110 that a

Tier 2 notice is required;

3) Operation under relief equivalent to a SDWA Section 1415 variance

granted under Section 611.111 or relief equivalent to a SDWA Section

1416 exemption granted under Section 611.112;

4) Availability of unregulated contaminant monitoring results, as required

under Section 611.907; and

5) Exceedance

Exceedence of the secondary standard for fluoride under

Section 611.858, as required under Section 611.908.

b) When the Tier 3 public notice is to be provided.

1) A PWS supplier must provide the public notice not later than one year

after the supplier learns of the violation or situation or begins operating

under relief equivalent to a SDWA Section 1415 variance or Section 1416

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exemption. Following the initial notice, the supplier must repeat the

notice annually for as long as the violation, relief equivalent to a SDWA

Section 1415 variance or Section 1416 exemption, or other situation

persists. If the public notice is posted, the notice must remain in place for

as long as the violation, relief equivalent to a SDWA Section 1415

variance or Section 1416 exemption, or other situation persists, but in no

case less than seven days (even if the violation or situation is resolved).

2) Instead of individual Tier 3 public notices, a PWS supplier may use an

annual report detailing all violations and situations that occurred during

the previous twelve months, as long as the timing requirements of

subsection (b)(1) of this Section are met.

c) The form and manner of the Tier 3 public notice. A PWS supplier must provide

the initial notice and any repeat notices in a form and manner that is reasonably

calculated to reach persons served in the required time period. The form and

manner of the public notice may vary based on the specific situation and type of

water system, but it must at a minimum meet the following requirements:

1) Unless directed otherwise by the Agency by a SEP issued pursuant to

Section 611.110 in writing, a CWS supplier must provide notice by the

following:

A) Mail or other direct delivery to each customer receiving a bill and

to other service connections to which water is delivered by the

supplier; and

B) Any other method reasonably calculated to reach other persons

regularly served by the supplier, if they would not normally be

reached by the notice required in subsection (c)(1)(A) of this

Section. Such persons may include those who do not pay water

bills or do not have service connection addresses (e.g., house

renters, apartment dwellers, university students, nursing home

patients, prison inmates, etc.). Other methods may include the

following: publication in a local newspaper; delivery of multiple

copies for distribution by customers that provide their drinking

water to others (e.g., apartment building owners or large private

employers); posting in public places or on the Internet; or delivery

to community organizations.

2) Unless directed otherwise by the Agency by a SEP issued pursuant to

Section 611.110 in writing, a non-CWS supplier must provide notice by

the following:

A) Posting the notice in conspicuous locations throughout the

distribution system frequented by persons served by the supplier,

128

or by mail or direct delivery to each customer and service

connection (where known); and

B) Any other method reasonably calculated to reach other persons

served by the supplier, if they would not normally be reached by

the notice required in subsection (c)(2)(A) of this Section. Such

persons may include those who may not see a posted notice

because the notice is not in a location they routinely pass by.

Other methods may include the following: publication in a local

newspaper or newsletter distributed to customers; use of E-mail to

notify employees or students; or delivery of multiple copies in

central locations (e.g., community centers).

d) When the Consumer Confidence Report may be used to meet the Tier 3 public

notice requirements. For a CWS supplier, the Consumer Confidence Report

(CCR) required under Subpart U of this Part may be used as a vehicle for the

initial Tier 3 public notice and all required repeat notices, as long as the following

is true:

1) The CCR is provided to persons served no later than 12 months after the

supplier learns of the violation or situation as required under Section

611.904(b);

2) The Tier 3 notice contained in the CCR follows the content requirements

under Section 611.905; and

3) The CCR is distributed following the delivery requirements under Section

611.904(c).

BOARD NOTE: Derived from 40 CFR 141.204, as added at 65 Fed. Reg. 26037 (May 4, 2000)

(2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.908 Special Notice for Exceedance Exceedence of the Fluoride Secondary

Standard

a) When to give special notice. A CWS supplier that exceeds the fluoride secondary

standard (SMCL) of 2 mg/L, as specified in Section 611.858 (determined by the

last single sample taken in accordance with Section 611.603), but does not exceed

the maximum contaminant level (MCL) of 4 mg/L for fluoride (as specified in

Section 611.301), must provide the public notice in subsection (c) of this Section

to persons served. Public notice must be provided as soon as practical but no later

than 12 months from the day the supplier learns of the exceedance exceedence. A

copy of the notice must also be sent to all new billing units and new customers at

the time service begins and to the Department of Pubic Health. The PWS supplier

129

must repeat the notice at least annually for as long as the SMCL is exceeded. If

the public notice is posted, the notice must remain in place for as long as the

fluoride SMCL is exceeded, but in no case less than seven days (even if the

exceedance exceedence is eliminated). On a case-by-case basis, the Agency may

require an initial notice sooner than 12 months and repeat notices more frequently

than annually.

b) The form and manner of a special notice. The form and manner of the public

notice (including repeat notices) must follow the requirements for a Tier 3 public

notice in Section 611.904(c), (d)(1), and (d)(3).

c) Mandatory language in a special notice. The notice must contain the following

language, including the language necessary to fill in the blanks:

This is an alert about your drinking water and a cosmetic dental problem

that might affect children under nine years of age. At low levels, fluoride

can help prevent cavities, but children drinking water containing more

than 2 milligrams per liter (mg/L) of fluoride may develop cosmetic

discoloration of their permanent teeth (dental fluorosis). The drinking

water provided by your community water system [name] has a fluoride

concentration of [insert value] mg/L. Dental fluorosis, in its moderate or

severe forms, may result in a brown staining and/or pitting of the

permanent teeth. This problem occurs only in developing teeth, before

they erupt from the gums. Children under nine should be provided with

alternative sources of drinking water or water that has been treated to

remove the fluoride to avoid the possibility of staining and pitting of their

permanent teeth. You may also want to contact your dentist about proper

use by young children of fluoride-containing products. Older children and

adults may safely drink the water.

Drinking water containing more than 4 mg/L of fluoride (the USEPA’s

drinking water standard) can increase your risk of developing bone

disease. Your drinking water does not contain more than 4 mg/L of

fluoride, but we’re required to notify you when we discover that the

fluoride levels in your drinking water exceed 2 mg/L because of this

cosmetic dental problem.

For more information, please call [name of water system contact] of [name

of community water system] at [phone number]. Some home water

treatment units are also available to remove fluoride from drinking water.

To learn more about available home water treatment units, you may call

NSF International at 1-877-8-NSF-HELP.

BOARD NOTE: Derived from 40 CFR 141.208, as added at 65 Fed. Reg. 26039 (May 4, 2000)

(2000).

130

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.909 Special Notice for Nitrate Exceedances Exceedences above the MCL by a

Non-Community Water System

a) When the special notice is to be given. The owner or operator of a non-CWS

supplier granted permission by the Agency under Section 611.300(d) to exceed

the nitrate MCL must provide notice to persons served according to the

requirements for a Tier 1 notice under Section 611.902(a) and (b).

b) The form and manner of the special notice. A non-CWS supplier granted

permission by the Agency to exceed the nitrate MCL under Section 611.300(d)

must provide continuous posting of the fact that nitrate levels exceed 10 mg/L and

the potential health effects of exposure, according to the requirements for Tier 1

notice delivery under Section 611.902(c) and the content requirements under

Section 611.905.

BOARD NOTE: Derived from 40 CFR 141.209, as added at 65 Fed. Reg. 26039 (May 4, 2000)

(2000).

(Source: Amended at 25 Ill. Reg. ________, effective ______________________)

Section 611.Appendix A Regulated Contaminants

Microbiological contaminants:

Contaminant (units): Total Coliform Bacteria

Traditional MCL in mg/L: MCL: (systems that collect

≥

40 samples/month) fewer than

5% of monthly samples are positive; (systems that collect < 40 samples/month)

fewer than 1 positive monthly sample.

To convert for CCR, multiply by: --

MCL in CCR units: MCL: (systems that collect

≥

40 samples/month) fewer than 5% of

monthly samples are positive; (systems that collect < 40 samples/month) fewer

than 1 positive monthly sample.

MCLG: 0

Major sources in drinking water: Naturally present in the environment.

Health effects language: Coliforms are bacteria that are naturally present in the

environment and are used as an indicator that other, potentially-harmful, bacteria

may be present. Coliforms were found in more samples than allowed and this

was a warning of potential problems.

Contaminant (units): Fecal coliform and E. coli

Traditional MCL in mg/L: 0

To convert for CCR, multiply by: --

MCL in CCR units: 0

131

MCLG: 0

Major sources in drinking water: Human and animal fecal waste.

Health effects language: Fecal coliforms and E. coli are bacteria whose presence

indicates that the water may be contaminated with human or animal wastes.

Microbes in these wastes can cause short-term effects, such as diarrhea, cramps,

nausea, headaches, or other symptoms. They may pose a special health risk for

infants, young children, some of the elderly, and people with severely-

compromised immune systems.

Contaminant (units): Total organic carbon (ppm)

Traditional MCL in mg/L: TT

To convert for CCR, multiply by: --

MCL in CCR units: TT

MCLG: N/A

Major sources in drinking water: Naturally present in the environment.

Health effects language: Total organic carbon (TOC) has no health effects. However,

total organic carbon provides a medium for the formation of disinfection

byproducts. These byproducts include trihalomethanes (THMs) and haloacetic

acids (HAAs). Drinking water containing these byproducts in excess of the MCL

may lead to adverse health effects, liver or kidney problems, or nervous system

effects, and may lead to an increased risk of getting cancer.

Contaminant (units): Turbidity (NTU)

Traditional MCL in mg/L: TT

To convert for CCR, multiply by: --

MCL in CCR units: TT

MCLG: N/A

Major sources in drinking water: Soil runoff.

Health effects language: Turbidity has no health effects. However, turbidity can

interfere with disinfection and provide a medium for microbial growth. Turbidity

may indicate the presence of disease-causing organisms. These organisms

include bacteria, viruses, and parasites that can cause symptoms such as nausea,

cramps, diarrhea, and associated headaches.

Radioactive contaminants:

Contaminant (units): Beta/photon emitters (mrem/yr)

Traditional MCL in mg/L: 4 mrem/yr

To convert for CCR, multiply by: --

MCL in CCR units: 4

MCLG: N/A 0

Major sources in drinking water: Decay of natural and man-made deposits.

Health effects language: Certain minerals are radioactive and may emit forms of

radiation known as photons and beta radiation. Some people who drink water

containing beta particle and photon emitters radioactivity in excess of the MCL

over many years may have an increased risk of getting cancer.

132

Contaminant (units): Alpha emitters (pCi/L).

Traditional MCL in mg/L: 15 pCi/L

To convert for CCR, multiply by: --

MCL in CCR units: 15

MCLG: N/A 0

Major sources in drinking water: Erosion of natural deposits.

Health effects language: Certain minerals are radioactive and may emit a form of

radiation known as alpha radiation. Some people who drink water containing

alpha emitters in excess of the MCL over many years may have an increased risk

of getting cancer.

Contaminant (units): Combined radium (pCi/L)

Traditional MCL in mg/L: 5 pCi/L

To convert for CCR, multiply by: --

MCL in CCR units: 5

MCLG: N/A 0

Major sources in drinking water: Erosion of natural deposits.

Health effects language: Some people who drink water containing radium 226 or 228

radium-226 or -228 in excess of the MCL over many years may have an increased

risk of getting cancer.

Contaminant (units): Uranium (

g/L)

Traditional MCL in mg/L: 30

g/L

To convert for CCR, multiply by: --

MCL in CCR units: 30

MCLG: 0

Major sources in drinking water: Erosion of natural deposits.

Health effects language: Some people who drink water containing uranium in excess of

the MCL over many years may have an increased risk of getting cancer and

kidney toxicity.

Inorganic contaminants:

Contaminant (units): Antimony (ppb)

Traditional MCL in mg/L: 0.006

To convert for CCR, multiply by: 1000

MCL in CCR units: 6

MCLG: 6

Major sources in drinking water: Discharge from petroleum refineries; fire retardants;

ceramics; electronics; solder.

Health effects language: Some people who drink water containing antimony well in

excess of the MCL over many years could experience increases in blood

cholesterol and decreases in blood sugar.

Contaminant (units): Arsenic (ppb)

133

Traditional MCL in mg/L: 0.05

To convert for CCR, multiply by: 1000

MCL in CCR units: 50

MCLG: N/A

Major sources in drinking water: Erosion of natural deposits; runoff from orchards;

runoff from glass and electronics production wastes.

Health effects language: Some people who drink water containing arsenic in excess of

the MCL over many years could experience skin damage or problems with their

circulatory system, and may have an increased risk of getting cancer.

Contaminant (units): Asbestos (MFL)

Traditional MCL in mg/L: 7 MFL

To convert for CCR, multiply by: --

MCL in CCR units: 7

MCLG: 7

Major sources in drinking water: Decay of asbestos cement water mains; erosion of

natural deposits.

Health effects language: Some people who drink water containing asbestos in excess of

the MCL over many years may have an increased risk of developing benign

intestinal polyps.

Contaminant (units): Barium (ppm)

Traditional MCL in mg/L: 2

To convert for CCR, multiply by: --

MCL in CCR units: 2

MCLG: 2

Major sources in drinking water: Discharge of drilling wastes; discharge from metal

refineries; erosion of natural deposits.

Health effects language: Some people who drink water containing barium in excess of

the MCL over many years could experience an increase in their blood pressure.

Contaminant (units): Beryllium (ppb)

Traditional MCL in mg/L: 0.004

To convert for CCR, multiply by: 1000

MCL in CCR units: 4

MCLG: 4

Major sources in drinking water: Discharge from metal refineries and coal-burning

factories; discharge from electrical, aerospace, and defense industries.

Health effects language: Some people who drink water containing beryllium well in

excess of the MCL over many years could develop intestinal lesions.

Contaminant (units): Cadmium (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 5

134

Major sources in drinking water: Corrosion of galvanized pipes; erosion of natural

deposits; discharge from metal refineries; runoff from waste batteries and paints.

Health effects language: Some people who drink water containing cadmium in excess of

the MCL over many years could experience kidney damage.

Contaminant (units): Chromium (ppb)

Traditional MCL in mg/L: 0.1

To convert for CCR, multiply by: 1000

MCL in CCR units: 100

MCLG: 100

Major sources in drinking water: Discharge from steel and pulp mills; erosion of natural

deposits.

Health effects language: Some people who use water containing chromium well in

excess of the MCL over many years could experience allergic dermatitis.

Contaminant (units): Copper (ppm)

Traditional MCL in mg/L: AL=1.3

To convert for CCR, multiply by: --

MCL in CCR units: AL=1.3

MCLG: 1.3

Major sources in drinking water: Corrosion of household plumbing systems; erosion of

natural deposits; leaching from wood preservatives.

Health effects language: Copper is an essential nutrient, but some people who drink

water containing copper in excess of the action level over a relatively short

amount of time could experience gastrointestinal distress. Some people who

drink water containing copper in excess of the action level over many years could

suffer liver or kidney damage. People with Wilson’s Disease should consult their

personal doctor.

Contaminant (units): Cyanide (ppb)

Traditional MCL in mg/L: 0.2

To convert for CCR, multiply by: 1000

MCL in CCR units: 200

MCLG: 200

Major sources in drinking water: Discharge from steel/metal factories; discharge from

plastic and fertilizer factories.

Health effects language: Some people who drink water containing cyanide well in excess

of the MCL over many years could experience nerve damage or problems with

their thyroid.

Contaminant (units): Fluoride (ppm)

Traditional MCL in mg/L: 4

To convert for CCR, multiply by: --

MCL in CCR units: 4

MCLG: 4

135

Major sources in drinking water: Erosion of natural deposits; water additive which that

promotes strong teeth; discharge from fertilizer and aluminum factories.

Health effects language: Some people who drink water containing fluoride in excess of

the MCL over many years could get bone disease, including pain and tenderness

of the bones. Fluoride in drinking water at half the MCL or more may cause

mottling of children’s teeth, usually in children less than nine years old. Mottling,

also known as dental fluorosis, may include brown staining and/or pitting of the

teeth, and occurs only in developing teeth before they erupt from the gums.

Contaminant (units): Lead (ppb)

Traditional MCL in mg/L: AL=0.015

To convert for CCR, multiply by: 1000

MCL in CCR units: AL=15

MCLG: 0

Major sources in drinking water: Corrosion of household plumbing systems; erosion of

natural deposits.

Health effects language: Infants and children who drink water containing lead in excess

of the action level could experience delays in their physical or mental

development. Children could show slight deficits in attention span and learning

abilities. Adults who drink this water over many years could develop kidney

problems or high blood pressure.

Contaminant (units): Mercury [inorganic] (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 2

Major sources in drinking water: Erosion of natural deposits; discharge from refineries

and factories; runoff from landfills; runoff from cropland.

Health effects language: Some people who drink water containing inorganic mercury

well in excess of the MCL over many years could experience kidney damage.

Contaminant (units): Nitrate (ppm)

Traditional MCL in mg/L: 10

To convert for CCR, multiply by: --

MCL in CCR units: 10

MCLG: 10

Major sources in drinking water: Runoff from fertilizer use; leaching from septic tanks,

sewage; erosion of natural deposits.

Health effects language: Infants below the age of six months who drink water containing

nitrate in excess of the MCL could become seriously ill and, if untreated, may die.

Symptoms include shortness of breath and blue baby syndrome.

Contaminant (units): Nitrite (ppm)

Traditional MCL in mg/L: 1

To convert for CCR, multiply by: --

136

MCL in CCR units: 1

MCLG: 1

Major sources in drinking water: Runoff from fertilizer use; leaching from septic tanks,

sewage; erosion of natural deposits.

Health effects language: Infants below the age of six months who drink water containing

nitrite in excess of the MCL could become seriously ill and, if untreated, may die.

Symptoms include shortness of breath and blue baby syndrome.

Contaminant (units): Selenium (ppb)

Traditional MCL in mg/L: 0.05

To convert for CCR, multiply by: 1000

MCL in CCR units: 50

MCLG: 50

Major sources in drinking water: Discharge from petroleum and metal refineries; erosion

of natural deposits; discharge from mines.

Health effects language: Selenium is an essential nutrient. However, some people who

drink water containing selenium in excess of the MCL over many years could

experience hair or fingernail losses, numbness in fingers or toes, or problems with

their circulation.

Contaminant (units): Thallium (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 0.5

Major sources in drinking water: Leaching from ore-processing sites; discharge from

electronics, glass, and drug factories.

Health effects language: Some people who drink water containing thallium in excess of

the MCL over many years could experience hair loss, changes in their blood, or

problems with their kidneys, intestines, or liver.

Synthetic organic contaminants including pesticides and herbicides:

Contaminant (units): 2,4-D (ppb)

Traditional MCL in mg/L: 0.07

To convert for CCR, multiply by: 1000

MCL in CCR units: 70

MCLG: 70

Major sources in drinking water: Runoff from herbicide used on row crops.

Health effects language: Some people who drink water containing the weed killer 2,4-D

well in excess of the MCL over many years could experience problems with their

kidneys, liver, or adrenal glands.

Contaminant (units): 2,4,5-TP [silvex](ppb)

Traditional MCL in mg/L: 0.05

To convert for CCR, multiply by: 1000

137

MCL in CCR units: 50

MCLG: 50

Major sources in drinking water: Residue of banned herbicide.

Health effects language: Some people who drink water containing silvex in excess of the

MCL over many years could experience liver problems.

Contaminant (units): Acrylamide

Traditional MCL in mg/L: TT

To convert for CCR, multiply by: --

MCL in CCR units: TT

MCLG: 0

Major sources in drinking water: Added to water during sewage/wastewater treatment.

Health effects language: Some people who drink water containing high levels of

acrylamide over a long period of time could have problems with their nervous

system or blood, and may have an increased risk of getting cancer.

Contaminant (units): Alachlor (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 0

Major sources in drinking water: Runoff from herbicide used on row crops.

Health effects language: Some people who drink water containing alachlor in excess of

the MCL over many years could have problems with their eyes, liver, kidneys, or

spleen, or experience anemia, and may have an increased risk of getting cancer.

Contaminant (units): Atrazine (ppb)

Traditional MCL in mg/L: 0.003

To convert for CCR, multiply by: 1000

MCL in CCR units: 3

MCLG: 3

Major sources in drinking water: Runoff from herbicide used on row crops.

Health effects language: Some people who drink water containing atrazine well in

excess of the MCL over many years could experience problems with their

cardiovascular system or reproductive difficulties.

Contaminant (units): Benzo(a)pyrene [PAH] (nanograms/L)

Traditional MCL in mg/L: 0.0002

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 200

MCLG: 0

Major sources in drinking water: Leaching from linings of water storage tanks and

distribution lines.

Health effects language: Some people who drink water containing benzo(a)pyrene in

excess of the MCL over many years may experience reproductive difficulties and

may have an increased risk of getting cancer.

138

Contaminant (units): Carbofuran (ppb)

Traditional MCL in mg/L: 0.04

To convert for CCR, multiply by: 1000

MCL in CCR units: 40

MCLG: 40

Major sources in drinking water: Leaching of soil fumigant used on rice and alfalfa.

Health effects language: Some people who drink water containing carbofuran in excess

of the MCL over many years could experience problems with their blood, or

nervous or reproductive systems.

Contaminant (units): Chlordane (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 0

Major sources in drinking water: Residue of banned termiticide.

Health effects language: Some people who drink water containing chlordane in excess of

the MCL over many years could experience problems with their liver or nervous

system, and may have an increased risk of getting cancer.

Contaminant (units): Dalapon (ppb)

Traditional MCL in mg/L: 0.2

To convert for CCR, multiply by: 1000

MCL in CCR units: 200

MCLG: 200

Major sources in drinking water: Runoff from herbicide used on rights of way.

Health effects language: Some people who drink water containing dalapon well in excess

of the MCL over many years could experience minor kidney changes.

Contaminant (units): Di(2-ethylhexyl)adipate (ppb)

Traditional MCL in mg/L: 0.4

To convert for CCR, multiply by: 1000

MCL in CCR units: 400

MCLG: 400

Major sources in drinking water: Discharge from chemical factories.

Health effects language: Some people who drink water containing di(2-

ethylhexyl)adipate well in excess of the MCL over many years could experience

general toxic effects or reproductive difficulties.

Contaminant (units): Di(2-ethylhexyl)phthalate (ppb)

Traditional MCL in mg/L: 0.006

To convert for CCR, multiply by: 1000

MCL in CCR units: 6

MCLG: 0

Major sources in drinking water: Discharge from rubber and chemical factories.

139

Health effects language: Some people who drink water containing di(2-

ethylhexyl)phthalate in excess of the MCL over many years may have problems

with their liver, or experience reproductive difficulties, and may have an

increased risk of getting cancer.

Contaminant (units): Dibromochloropropane [DBCP] (ppt)

Traditional MCL in mg/L: 0.0002

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 200

MCLG: 0

Major sources in drinking water: Runoff/leaching from soil fumigant used on soybeans,

cotton, pineapples, and orchards.

Health effects language: Some people who drink water containing DBCP in excess of

the MCL over many years could experience reproductive problems and may have

an increased risk of getting cancer.

Contaminant (units): Dinoseb (ppb)

Traditional MCL in mg/L: 0.007

To convert for CCR, multiply by: 1000

MCL in CCR units: 7

MCLG: 7

Major sources in drinking water: Runoff from herbicide used on soybeans and

vegetables.

Health effects language: Some people who drink water containing dinoseb well in excess

of the MCL over many years could experience reproductive difficulties.

Contaminant (units): Diquat (ppb)

Traditional MCL in mg/L: 0.02

To convert for CCR, multiply by: 1000

MCL in CCR units: 20

MCLG: 20

Major sources in drinking water: Runoff from herbicide use.

Health effects language: Some people who drink water containing diquat in excess of the

MCL over many years could get cataracts.

Contaminant (units): Dioxin [2,3,7,8-TCDD] (ppq)

Traditional MCL in mg/L: 0.00000003

To convert for CCR, multiply by: 1,000,000,000

MCL in CCR units: 30

MCLG: 0

Major sources in drinking water: Emissions from waste incineration and other

combustion; discharge from chemical factories.

Health effects language: Some people who drink water containing dioxin in excess of the

MCL over many years could experience reproductive difficulties and may have an

increased risk of getting cancer.

140

Contaminant (units): Endothall (ppb)

Traditional MCL in mg/L: 0.1

To convert for CCR, multiply by: 1000

MCL in CCR units: 100

MCLG: 100

Major sources in drinking water: Runoff from herbicide use.

Health effects language: Some people who drink water containing endothall in excess of

the MCL over many years could experience problems with their stomach or

intestines.

Contaminant (units): Endrin (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 2

Major sources in drinking water: Residue of banned insecticide.

Health effects language: Some people who drink water containing endrin in excess of the

MCL over many years could experience liver problems.

Contaminant (units): Epichlorohydrin.

Traditional MCL in mg/L: TT

To convert for CCR, multiply by: --

MCL in CCR units: TT

MCLG: 0

Major sources in drinking water: Discharge from industrial chemical factories; an

impurity of some water treatment chemicals.

Health effects language: Some people who drink water containing high levels of

epichlorohydrin over a long period of time could experience stomach problems,

and may have an increased risk of getting cancer.

Contaminant (units): Ethylene dibromide (ppt)

Traditional MCL in mg/L: 0.00005

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 50

MCLG: 0

Major sources in drinking water: Discharge from petroleum refineries.

Health effects language: Some people who drink water containing ethylene dibromide in

excess of the MCL over many years could experience problems with their liver,

stomach, reproductive system, or kidneys, and may have an increased risk of

getting cancer.

Contaminant (units): Glyphosate (ppb)

Traditional MCL in mg/L: 0.7

To convert for CCR, multiply by: 1000

MCL in CCR units: 700

MCLG: 700

141

Major sources in drinking water: Runoff from herbicide use.

Health effects language: Some people who drink water containing glyphosate in excess

of the MCL over many years could experience problems with their kidneys or

reproductive difficulties.

Contaminant (units): Heptachlor (ppt)

Traditional MCL in mg/L: 0.0004

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 400

MCLG: 0

Major sources in drinking water: Residue of banned pesticide.

Health effects language: Some people who drink water containing heptachlor in excess

of the MCL over many years could experience liver damage and may have an

increased risk of getting cancer.

Contaminant (units): Heptachlor epoxide (ppt)

Traditional MCL in mg/L: 0.0002

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 200

MCLG: 0

Major sources in drinking water: Breakdown of heptachlor.

Health effects language: Some people who drink water containing heptachlor epoxide in

excess of the MCL over many years could experience liver damage, and may

have an increased risk of getting cancer.

Contaminant (units): Hexachlorobenzene (ppb)

Traditional MCL in mg/L: 0.001

To convert for CCR, multiply by: 1000

MCL in CCR units: 1

MCLG: 0

Major sources in drinking water: Discharge from metal refineries and agricultural

chemical factories.

Health effects language: Some people who drink water containing hexachlorobenzene in

excess of the MCL over many years could experience problems with their liver or

kidneys, or adverse reproductive effects, and may have an increased risk of

getting cancer.

Contaminant (units): Hexachlorocyclopentadiene (ppb)

Traditional MCL in mg/L: 0.05

To convert for CCR, multiply by: 1000

MCL in CCR units: 50

MCLG: 50

Major sources in drinking water: Discharge from chemical factories.

Health effects language: Some people who drink water containing

hexachlorocyclopentadiene well in excess of the MCL over many years could

experience problems with their kidneys or stomach.

142

Contaminant (units): Lindane (ppt)

Traditional MCL in mg/L: 0.0002

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 200

MCLG: 200

Major sources in drinking water: Runoff/leaching from insecticide used on cattle,

lumber, gardens.

Health effects language: Some people who drink water containing lindane in excess of

the MCL over many years could experience problems with their kidneys or liver.

Contaminant (units): Methoxychlor (ppb)

Traditional MCL in mg/L: 0.04

To convert for CCR, multiply by: 1000

MCL in CCR units: 40

MCLG: 40

Major sources in drinking water: Runoff/leaching from insecticide used on fruits,

vegetables, alfalfa, livestock.

Health effects language: Some people who drink water containing methoxychlor in

excess of the MCL over many years could experience reproductive difficulties.

Contaminant (units): Oxamyl [Vydate] (ppb)

Traditional MCL in mg/L: 0.2

To convert for CCR, multiply by: 1000

MCL in CCR units: 200

MCLG: 200

Major sources in drinking water: Runoff/leaching from insecticide used on apples,

potatoes and tomatoes.

Health effects language: Some people who drink water containing oxamyl in excess of

the MCL over many years could experience slight nervous system effects.

Contaminant (units): PCBs [Polychlorinated biphenyls] (ppt)

Traditional MCL in mg/L: 0.0005

To convert for CCR, multiply by: 1,000,000

MCL in CCR units: 500

MCLG: 0

Major sources in drinking water: Runoff from landfills; discharge of waste chemicals.

Health effects language: Some people who drink water containing PCBs in excess of the

MCL over many years could experience changes in their skin, problems with their

thymus gland, immune deficiencies, or reproductive or nervous system

difficulties, and may have an increased risk of getting cancer.

Contaminant (units): Pentachlorophenol (ppb)

Traditional MCL in mg/L: 0.001

To convert for CCR, multiply by: 1000

MCL in CCR units: 1

143

MCLG: 0

Major sources in drinking water: Discharge from wood preserving factories.

Health effects language: Some people who drink water containing pentachlorophenol in

excess of the MCL over many years could experience problems with their liver or

kidneys, and may have an increased risk of getting cancer.

Contaminant (units): Picloram (ppb)

Traditional MCL in mg/L: 0.5

To convert for CCR, multiply by: 1000

MCL in CCR units: 500

MCLG: 500

Major sources in drinking water: Herbicide runoff.

Health effects language: Some people who drink water containing picloram in excess of

the MCL over many years could experience problems with their liver.

Contaminant (units): Simazine (ppb)

Traditional MCL in mg/L: 0.004

To convert for CCR, multiply by: 1000

MCL in CCR units: 4

MCLG: 4

Major sources in drinking water: Herbicide runoff.

Health effects language: Some people who drink water containing simazine in excess of

the MCL over many years could experience problems with their blood.

Contaminant (units): Toxaphene (ppb)

Traditional MCL in mg/L: 0.003

To convert for CCR, multiply by: 1000

MCL in CCR units: 3

MCLG: 0

Major sources in drinking water: Runoff/leaching from insecticide used on cotton and

cattle.

Health effects language: Some people who drink water containing toxaphene in excess

of the MCL over many years could have problems with their kidneys, liver, or

thyroid, and may have an increased risk of getting cancer.

Volatile organic contaminants:

Contaminant (units): Benzene (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from factories; leaching from gas storage

tanks and landfills.

144

Health effects language: Some people who drink water containing benzene in excess of

the MCL over many years could experience anemia or a decrease in blood

platelets, and may have an increased risk of getting cancer.

Contaminant (units): Bromate (ppb)

Traditional MCL in mg/L: 0.010

To convert for CCR, multiply by: 1000

MCL in CCR units: 10

MCLG: 0

Major sources in drinking water: Byproduct of drinking water chlorination.

Health effects language: Some people who drink water containing bromate in excess of

the MCL over many years may have an increased risk of getting cancer.

Contaminant (units): Carbon tetrachloride (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from chemical plants and other industrial

activities.

Health effects language: Some people who drink water containing carbon tetrachloride

in excess of the MCL over many years could experience problems with their liver

and may have an increased risk of getting cancer.

Contaminant (units): Chloramines (ppm)

Traditional MCL in mg/L: MRDL = 4

To convert for CCR, multiply by: --

MCL in CCR units: MRDL = 4

MCLG: MRDLG = 4

Major sources in drinking water: Water additive used to control microbes.

Health effects language: Some people who use water containing chloramines well in

excess of the MRDL could experience irritating effects to their eyes and nose.

Some people who drink water containing chloramines well in excess of the

MRDL could experience stomach discomfort or anemia.

Contaminant (units): Chlorine (ppm)

Traditional MCL in mg/L: MRDL = 4

To convert for CCR, multiply by: --

MCL in CCR units: MRDL = 4

MCLG: MRDLG = 4

Major sources in drinking water: Water additive used to control microbes.

Health effects language: Some people who use water containing chlorine well in excess

of the MRDL could experience irritating effects to their eyes and nose. Some

people who drink water containing chlorine well in excess of the MRDL could

experience stomach discomfort.

145

Contaminant (units): Chlorite (ppm)

Traditional MCL in mg/L: 1

To convert for CCR, multiply by: --

MCL in CCR units: 1

MCLG: 0.8

Major sources in drinking water: Byproduct of drinking water chlorination.

Health effects language: Some infants and young children who drink water containing

chlorite in excess of the MCL could experience nervous system effects. Similar

effects may occur in fetuses of pregnant women who drink water containing

chlorite in excess of the MCL. Some people may experience anemia.

Contaminant (units): Chlorine dioxide (ppb)

Traditional MCL in mg/L: MRDL = 0.8

To convert for CCR, multiply by: 1000

MCL in CCR units: MRDL = 800

MCLG: MRDLG = 800

Major sources in drinking water: Water additive used to control microbes.

Health effects language: Some infants and young children who drink water containing

chlorine dioxide in excess of the MRDL could experience nervous system effects.

Similar effects may occur in fetuses of pregnant women who drink water

containing chlorine dioxide in excess of the MRDL. Some people may

experience anemia.

Contaminant (units): Chlorobenzene (ppb)

Traditional MCL in mg/L: 0.1

To convert for CCR, multiply by: 1000

MCL in CCR units: 100

MCLG: 100

Major sources in drinking water: Discharge from chemical and agricultural chemical

factories.

Health effects language: Some people who drink water containing chlorobenzene in

excess of the MCL over many years could experience problems with their liver or

kidneys.

Contaminant (units): o-Dichlorobenzene (ppb)

Traditional MCL in mg/L: 0.6

To convert for CCR, multiply by: 1000

MCL in CCR units: 600

MCLG: 600

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing o-dichlorobenzene

well in excess of the MCL over many years could experience problems with their

liver, kidneys, or circulatory systems.

Contaminant (units): p-Dichlorobenzene (ppb)

Traditional MCL in mg/L: 0.075

146

To convert for CCR, multiply by: 1000

MCL in CCR units: 75

MCLG: 75

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing p-dichlorobenzene in

excess of the MCL over many years could experience anemia, damage to their

liver, kidneys, or spleen, or changes in their blood.

Contaminant (units): 1,2-Dichloroethane (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing 1,2-dichloroethane in

excess of the MCL over many years may have an increased risk of getting cancer.

Contaminant (units): 1,1-Dichloroethylene (ppb)

Traditional MCL in mg/L: 0.007

To convert for CCR, multiply by: 1000

MCL in CCR units: 7

MCLG: 7

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing 1,1-dichloroethylene

in excess of the MCL over many years could experience problems with their liver.

Contaminant (units): cis-1,2-Dichloroethylene (ppb)

Traditional MCL in mg/L: 0.07

To convert for CCR, multiply by: 1000

MCL in CCR units: 70

MCLG: 70

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing cis-1,2-

dichloroethylene in excess of the MCL over many years could experience

problems with their liver.

Contaminant (units): trans-1,2-Dichloroethylene (ppb)

Traditional MCL in mg/L: 0.1

To convert for CCR, multiply by: 1000

MCL in CCR units: 100

MCLG: 100

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing trans-1,2-

dichloroethylene well in excess of the MCL over many years could experience

problems with their liver.

147

Contaminant (units): Dichloromethane (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from pharmaceutical and chemical factories.

Health effects language: Some people who drink water containing dichloromethane in

excess of the MCL over many years could have liver problems and may have an

increased risk of getting cancer.

Contaminant (units): 1,2-Dichloropropane (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing 1,2-dichloropropane

in excess of the MCL over many years may have an increased risk of getting

cancer.

Contaminant (units): Ethylbenzene (ppb)

Traditional MCL in mg/L: 0.7

To convert for CCR, multiply by: 1000

MCL in CCR units: 700

MCLG: 700

Major sources in drinking water: Discharge from petroleum refineries.

Health effects language: Some people who drink water containing ethylbenzene well in

excess of the MCL over many years could experience problems with their liver or

kidneys.

Contaminant (units): Haloacetic Acids (HAA5) (ppb)

Traditional MCL in mg/L: 0.060

To convert for CCR, multiply by: 1000

MCL in CCR units: 60

MCLG: N/A

Major sources in drinking water: Byproduct of drinking water disinfection.

Health effects language: Some people who drink water containing haloacetic acids in

excess of the MCL over many years may have an increased risk of getting cancer.

Contaminant (units): Styrene (ppb)

Traditional MCL in mg/L: 0.1

To convert for CCR, multiply by: 1000

MCL in CCR units: 100

MCLG: 100

Major sources in drinking water: Discharge from rubber and plastic factories; leaching

from landfills.

148

Health effects language: Some people who drink water containing styrene well in excess

of the MCL over many years could have problems with their liver, kidneys, or

circulatory system.

Contaminant (units): Tetrachloroethylene (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from factories and dry cleaners.

Health effects language: Some people who drink water containing tetrachloroethylene in

excess of the MCL over many years could have problems with their liver, and

may have an increased risk of getting cancer.

Contaminant (units): 1,2,4-Trichlorobenzene (ppb)

Traditional MCL in mg/L: 0.07

To convert for CCR, multiply by: 1000

MCL in CCR units: 70

MCLG: 70

Major sources in drinking water: Discharge from textile-finishing factories.

Health effects language: Some people who drink water containing 1,2,4-

trichlorobenzene well in excess of the MCL over many years could experience

changes in their adrenal glands.

Contaminant (units): 1,1,1-Trichloroethane (ppb)

Traditional MCL in mg/L: 0.2

To convert for CCR, multiply by: 1000

MCL in CCR units: 200

MCLG: 200

Major sources in drinking water: Discharge from metal degreasing sites and other

factories.

Health effects language: Some people who drink water containing 1,1,1-trichloroethane

in excess of the MCL over many years could experience problems with their liver,

nervous system, or circulatory system.

Contaminant (units): 1,1,2-Trichloroethane (ppb)

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 3

Major sources in drinking water: Discharge from industrial chemical factories.

Health effects language: Some people who drink water containing 1,1,2-trichloroethane

well in excess of the MCL over many years could have problems with their liver,

kidneys, or immune systems.

Contaminant (units): Trichloroethylene (ppb)

149

Traditional MCL in mg/L: 0.005

To convert for CCR, multiply by: 1000

MCL in CCR units: 5

MCLG: 0

Major sources in drinking water: Discharge from metal degreasing sites and other

factories.

Health effects language: Some people who drink water containing trichloroethylene in

excess of the MCL over many years could experience problems with their liver

and may have an increased risk of getting cancer.

Contaminant (units): TTHMs [Total trihalomethanes] (ppb)

Traditional MCL in mg/L: 0.10/0.080

To convert for CCR, multiply by: 1000

MCL in CCR units: 100/80

MCLG: N/A

Major sources in drinking water: Byproduct of drinking water chlorination.

Health effects language: Some people who drink water containing trihalomethanes in

excess of the MCL over many years may experience problems with their liver,

kidneys, or central nervous systems, and may have an increased risk of getting

cancer.

Contaminant (units): Toluene (ppm)

Traditional MCL in mg/L: 1

To convert for CCR, multiply by: --

MCL in CCR units: 1

MCLG: 1

Major sources in drinking water: Discharge from petroleum factories.

Health effects language: Some people who drink water containing toluene well in excess

of the MCL over many years could have problems with their nervous system,

kidneys, or liver.

Contaminant (units): Vinyl Chloride (ppb)

Traditional MCL in mg/L: 0.002

To convert for CCR, multiply by: 1000

MCL in CCR units: 2

MCLG: 0

Major sources in drinking water: Leaching from PVC piping; discharge from plastics

factories.

Health effects language: Some people who drink water containing vinyl chloride in

excess of the MCL over many years may have an increased risk of getting cancer.

Contaminant (units): Xylenes (ppm)

Traditional MCL in mg/L: 10

To convert for CCR, multiply by: --

MCL in CCR units: 10

MCLG: 10

150

Major sources in drinking water: Discharge from petroleum factories; discharge from

chemical factories.

Health effects language: Some people who drink water containing xylenes in excess of

the MCL over many years could experience damage to their nervous system.

Key:

Abbreviation Meaning

AL Action

Level

MCL

Maximum Contaminant Level

MCLG

Maximum Contaminant Level Goal

MFL

million fibers per liter

MRDL

Maximum Residual Disinfectant Level

MRDLG

Maximum Residual Disinfectant Level Goal

mrem/year

millirems per year (a measure of radiation absorbed by the body)

N/A Not

Applicable

NTU

Nephelometric Turbidity Units (a measure of water clarity)

pCi/L

picocuries per liter (a measure of radioactivity)

ppm

parts per million, or milligrams per liter (mg/L)

ppb

parts per billion, or micrograms per liter (

g/L)

ppt

parts per trillion, or nanograms per liter

ppq

parts per quadrillion, or picograms per liter

TT Treatment

Technique

BOARD NOTE: Derived from Appendix A to Subpart O to 40 CFR 141 (1999) (2000), as

added at 65 Fed. Reg. 26024 (May 4, 1999) 76749 (December 7, 2000), effective December 8,

2003.

(Source: Amended at 25 Ill. Reg. ________ effective ______________________)

Section 611.Appendix G NPDWR Violations and Situations Requiring Public Notice

See note 1 at the end of this Appendix for an explanation of the Agency’s authority to alter the

magnitude of a violation from that set forth in the following table.

MCL/MRDL/TT

violations

Monitoring & testing

procedure violations

Contaminant Tier

public

notice

required

Citation Tier of

public

notice

required

Citation

151

I. Violations of National Primary Drinking Water Regulations (NPDWR):

A. Microbiological Contaminants

1. Total coliform

611.325(a)

611.521-

611.525

2. Fecal coliform/E. coli

611.325(b)

1, 3

611.525

3. Turbidity MCL

611.320(a)

611.560

4. Turbidity MCL (average of 2

two days’ samples >5 NTU)

2, 1

611.320(b)

611.560

5. Turbidity (for TT violations

resulting from a single

exceedance exceedence of

maximum allowable turbidity

level)

2, 1

611.231(b),

611.233(b)(1),

611.250(a)(2),

611.250(b)(2),

611.250(c)(2),

611.250(d),

611.743(a)(2),

611.743(b)

3 611.531(a),

611.532(b),

611.533(a),

611.744

6. Surface Water Treatment

Rule violations, other than

violations resulting from single

exceedance exceedence of max.

allowable turbidity level (TT)

2 611.211,

611.213,

611.220,

611.230-

611.233,

611.240-

611.242,

611.250

3 611.531-

611.533

7. Interim Enhanced Surface

Water Treatment Rule

violations, other than violations

resulting from single

exceedance exceedence of max.

turbidity level (TT)

611.740-

611.743

3 611.742,

611.744

B. Inorganic Chemicals (IOCs)

1. Antimony

2 611.301(b)

3 611.600,

611.601,

611.603

2. Arsenic

611.300(b),

611.612(c)

3 611.100,

611.101,

611.612

3. Asbestos (fibers >10 m)

611.301(b)

611.600,

611.601,

611.602

4. Barium

2 611.301(b)

3 611.600,

611.601,

611.603

152

5. Beryllium

2 611.301(b)

3 611.600,

611.601,

611.603

6. Cadmium

2 611.301(b)

3 611.600,

611.601,

611.603

7. Chromium (total)

611.301(b)

611.600,

611.601,

611.603

8. Cyanide

2 611.301(b)

3 611.600,

611.601,

611.603

9. Fluoride

2 611.301(b)

3 611.600,

611.601,

611.603

10. Mercury (inorganic)

611.301(b)

611.600,

611.601,

611.603

11. Nitrate

611.301(b)

1, 3

611.600,

611.601,

611.604,

611.606

12. Nitrite

611.301(b)

1, 3

611.600,

611.601,

611.605,

611.606

13. Total Nitrate and Nitrite

611.301(b)

611.600,

611.601

14. Selenium

2 611.301(b)

3 611.600,

611.601,

611.603

15. Thallium

2 611.301(b)

3 611.600,

611.601,

611.603

C. Lead and Copper Rule (Action Level for lead is 0.015 mg/L, for copper is 1.3 mg/L)

1. Lead and Copper Rule (TT)

611.350-

611.355

3 611.356-

611.359

D. Synthetic Organic Chemicals (SOCs)

1. 2,4-D

2 611.310(c)

3 611.648

2. 2,4,5-TP (silvex)

611.310(c)

611.648

3. Alachlor

2 611.310(c)

3 611.648

4. Atrazine

2 611.310(c)

3 611.648

5. Benzo(a)pyrene (PAHs)

611.310(c)

611.648

153

6. Carbofuran

2 611.310(c)

3 611.648

7. Chlordane

2 611.310(c)

3 611.648

8. Dalapon

2 611.310(c)

3 611.648

9. Di (2-ethylhexyl) adipate

611.310(c)

611.648

10. Di (2-ethylhexyl) phthalate

611.310(c)

611.648

11. Dibromochloropropane

(DBCP)

2 611.310(c)

3 611.648

12. Dinoseb

2 611.310(c)

3 611.648

13. Dioxin (2,3,7,8-TCDD)

611.310(c)

611.648

14. Diquat

2 611.310(c)

3 611.648

15. Endothall

2 611.310(c)

3 611.648

16. Endrin

2 611.310(c)

3 611.648

17. Ethylene dibromide

611.310(c)

611.648

18. Glyphosate

2 611.310(c)

3 611.648

19. Heptachlor

2 611.310(c)

3 611.648

20. Heptachlor epoxide

611.310(c)

611.648

21. Hexachlorobenzene

2 611.310(c)

3 611.648

22. Hexachlorocyclo-pentadiene

2 611.310(c)

3 611.648

23. Lindane

2 611.310(c)

3 611.648

24. Methoxychlor

2 611.310(c)

3 611.648

25. Oxamyl (Vydate)

611.310(c)

611.648

26. Pentachlorophenol 2 611.310(c)

3 611.648

27. Picloram

2 611.310(c)

3 611.648

28. Polychlorinated biphenyls

(PCBs)

2 611.310(c)

3 611.648

29. Simazine

2 611.310(c)

3 611.648

30. Toxaphene

2 611.310(c)

3 611.648

E. Volatile Organic Chemicals (VOCs)

1. Benzene

2 611.310(a)

3 611.646

2. Carbon tetrachloride

611.310(a)

611.646

3. Chlorobenzene

(monochlorobenzene)

2 611.310(a)

3 611.646

4. o-Dichlorobenzene 2 611.310(a)

3 611.646

5. p-Dichlorobenzene 2 611.310(a)

3 611.646

6. 1,2-Dichloroethane 2 611.310(a)

3 611.646

7. 1,1-Dichloroethylene

2 611.310(a)

3 611.646

8. cis-1,2-Dichloroethylene

2 611.310(a)

3 611.646

9. trans-1,2-Dichloroethylene

2 611.310(a)

3 611.646

10. Dichloromethane

2 611.310(a)

3 611.646

11. 1,2-Dichloropropane

2 611.310(a)

3 611.646

12. Ethylbenzene

2 611.310(a)

3 611.646

13. Styrene

2 611.310(a)

3 611.646

14. Tetrachloroethylene

2 611.310(a)

3 611.646

154

15. Toluene

2 611.310(a)

3 611.646

16. 1,2,4-Trichlorobenzene

2 611.310(a)

3 611.646

17. 1,1,1-Trichloroethane

2 611.310(a)

3 611.646

18. 1,1,2-Trichloroethane

2 611.310(a)

3 611.646

19. Trichloroethylene 2 611.310(a)

3 611.646

20. Vinyl chloride

611.310(a)

611.646

21. Xylenes (total)

611.310(a)

611.646

F. Radioactive Contaminants

1. Beta/photon emitters

611.331

611.330(d)

3 611.720(a),

611.732

2. Alpha emitters

611.330(b)

611.330(c)

3 611.720(a),

611.731

3. Combined radium (226 &

228)

2 611.330(a)

611.330(b)

3 611.720(a),

611.731

4. Uranium

2 611.330(e)

3 611.720(a),

611.731

G. Disinfection Byproducts (DBPs), Byproduct Precursors, Disinfectant Residuals. Where

disinfection is used in the treatment of drinking water, disinfectants combine with organic and

inorganic matter present in water to form chemicals called disinfection byproducts (DBPs). EPA

USEPA sets standards for controlling the levels of disinfectants and DBPs in drinking water,

including trihalomethanes (THMs) and haloacetic acids (HAAs).

911

1. Total trihalomethanes

(TTHMs)

611.310,

611.312(a)

3 611.680-

611.688,

611.382(a)-(b)

2. Haloacetic Acids (HAA5)

611.312(a)

611.382(a)-(b)

3. Bromate

2 611.312(a)

3 611.382(a)-(b)

4. Chlorite

2 611.312(a)

3 611.382(a)-(b)

5. Chlorine (MRDL)

611.313(a)

611.382(a), (c)

6. Chloramine (MRDL)

611.313(a)

611.382(a), (c)

7. Chlorine dioxide (MRDL),

where any 2 two consecutive

daily samples at entrance to

distribution system only are

above MRDL

2 611.313(a),

611.383(c)(3)

, 3

611.382(a), (c),

611.383(c)(2)

8. Chlorine dioxide (MRDL),

where sample(s) in distribution

system the next day are also

above MRDL

1 611.313(a),

611.383(c)(3)

1 611.382(a), (c),

611.383(c)(2)

9. Control of DBP precursors--

TOC (TT)

2 611.385(a)-(b)

3 611.382(a), (d)

10. Benchmarking and

disinfection profiling

N/A N/A

611.742

155

11. Development of monitoring

plan

N/A N/A

611.382(f)

H. Other Treatment Techniques

1. Acrylamide (TT)

611.296

N/A

2. Epichlorohydrin (TT)

611.296

N/A

II. Unregulated Contaminant Monitoring:

A. Unregulated contaminants

N/A

611.510

B. Nickel

N/A

611.603,

611.611

III. Public Notification for Relief Equivalent to a SDWA Section 1415 Variance or a Section

1416 Exemption:

A. Operation under relief

equivalent to a SDWA Section

section 1415 variance or a

Section section 1416 exemption

1415, 1416

N/A

B. Violation of conditions of

relief equivalent to a SDWA

Section section 1415 variance or

a Section section 1416

exemption

2 1415, 1416,

611.111,

611.112

N/A N/A

IV. Other Situations Requiring Public Notification:

A. Fluoride secondary

maximum contaminant level

(SMCL) exceedance

exceedence

3 611.858

N/A

B. Exceedance Exceedence of

nitrate MCL for non-community

systems, as allowed by the

Agency

1 611.300(d)

N/A

C. Availability of unregulated

contaminant monitoring data

3 611.510

N/A

D. Waterborne disease outbreak

611.101,

611.233(b)(2)

N/A N/A

E. Other waterborne emergency

1 N/A

N/A

F. Other situations as

determined by the Agency by a

SEP issued pursuant to Section

611.110

1, 2, 3

N/A

156

Appendix G--Endnotes

1. Violations and other situations not listed in this table (e.g., reporting violations and failure to

prepare Consumer Confidence Reports), do not require notice, unless otherwise determined by

the Agency by a SEP issued pursuant to Section 611.110. The Agency may, by a SEP issued

pursuant to Section 611.110, further require a more stringent public notice tier (e.g., Tier 1

instead of Tier 2 or Tier 2 instead of Tier 3) for specific violations and situations listed in this

Appendix, as authorized under Sections 611.902(a) and 611.903(a).

2. Definition of the abbreviations used: “MCL” means maximum contaminant level, “MRDL”

means maximum residual disinfectant level, and “TT” means treatment technique.

3. The term “violations of National Primary Drinking Water Regulations (NPDWR)” is used

here to include violations of MCL, MRDL, treatment technique, monitoring, and testing

procedure requirements.

4. Failure to test for fecal coliform or E. coli is a Tier 1 violation if testing is not done after any

repeat sample tests positive for coliform. All other total coliform monitoring and testing

procedure violations are Tier 3 violations.

5. A supplier that violates the turbidity MCL of 5 NTU based on an average of measurements

over two consecutive days must consult with the Agency within 24 hours after learning of the

violation. Based on this consultation, the Agency may subsequently decide to issue a SEP issued

pursuant to Section 611.110 that elevates the violation to a Tier 1 violation. If a system is unable

to make contact with the Agency in the 24-hour period, the violation is automatically elevated to

a Tier 1 violation.

6. A supplier with a treatment technique violation involving a single exceedance exceedence of a

maximum turbidity limit under the Surface Water Treatment Rule (SWTR) or the Interim

Enhanced Surface Water Treatment Rule (IESWTR) are required to consult with the Agency

within 24 hours after learning of the violation. Based on this consultation, the Agency may

subsequently decide to issue a SEP pursuant to Section 611.110 that elevates the violation to a

Tier 1 violation. If a system is unable to make contact with the Agency in the 24-hour period,

the violation is automatically elevated to a Tier 1 violation.

7. Most of the requirements of the Interim Enhanced Surface Water Treatment Rule (63 FR Fed.

Reg. 69477 (December 16, 1998)) (Secs. Sections 611.740-611.741, 611.743-611.744) become

effective January 1, 2002 for a Subpart B supplier (surface water systems and groundwater

systems under the direct influence of surface water) that serves at least 10,000 persons.

However, Section 611.742 is currently effective. The Surface Water Treatment Rule (SWTR)

remains in effect for systems serving at least 10,000 persons even after 2002; the Interim

Enhanced Surface Water Treatment Rule adds additional requirements and does not in many

cases supercede the SWTR.

8. Failure to take a confirmation sample within 24 hours for nitrate or nitrite after an initial

sample exceeds the MCL is a Tier 1 violation. Other monitoring violations for nitrate are Tier 3.

157

9. The uranium MCL Tier 2 violation citations are effective December 8, 2003 for all community

water systems.

10. The uranium Tier 3 violation citations are effective December 8, 2000 for all community

water systems.

9. 11. A Subpart B community or non-transient non-community system supplier that serves

10,000 persons or more must comply with new DBP MCLs, disinfectant MRDLs, and related

monitoring requirements beginning January 1, 2002. All other community and non-transient

non-community systems must meet the MCLs and MRDLs beginning January 1, 2004. A

Subpart B transient non-community system supplier serving 10,000 or more persons that uses

chlorine dioxide as a disinfectant or oxidant must comply with the chlorine dioxide MRDL

beginning January 1, 2002. A Subpart B transient non-community system supplier that serves

fewer than 10,000 persons, which uses only groundwater not under the direct influence of

surface water, and which uses chlorine dioxide as a disinfectant or oxidant must comply with the

chlorine dioxide MRDL beginning January 1, 2004.

10. 12. Section 611.310 will no longer apply after January 1, 2004.

11. 13. Failure to monitor for chlorine dioxide at the entrance to the distribution system the day

after exceeding the MRDL at the entrance to the distribution system is a Tier 2 violation.

12. 14. If any daily sample taken at the entrance to the distribution system exceeds the MRDL

for chlorine dioxide and one or more samples taken in the distribution system the next day

exceed the MRDL, Tier 1 notification is required. A failure to take the required samples in the

distribution system after the MRDL is exceeded at the entry point also triggers Tier 1

notification.

13. 15. Some water suppliers must monitor for certain unregulated contaminants listed in Section

611.510.

14. 16. This citation refers to Sections sections 1415 and 1416 of the federal Safe Drinking

Water Act. Sections sections 1415 and 1416 require that “a schedule prescribed . . . for a public

water system granted relief equivalent to a SDWA Section section 1415 variance or a Section

section 1416 exemption shall must require compliance by the system . . ..”

15. 17. In addition to Sections sections 1415 and 1416 of the federal Safe Drinking Water Act,

40 CFR 142.307 specifies the items and schedule milestones that must be included in relief

equivalent to a SDWA Section section 1415 small system variance. In granting any form of

relief from an NPDWR, the Board will consider all applicable federal requirements for and

limitations on the State’s ability to grant relief consistent with federal law.

16. 18. Other waterborne emergencies require a Tier 1 public notice under Section 611.902(a)

for situations that do not meet the definition of a waterborne disease outbreak given in Section

611.101, but which still have the potential to have serious adverse effects on health as a result of

158

short-term exposure. These could include outbreaks not related to treatment deficiencies, as well

as situations that have the potential to cause outbreaks, such as failures or significant interruption

in water treatment processes, natural disasters that disrupt the water supply or distribution

system, chemical spills, or unexpected loading of possible pathogens into the source water.

BOARD NOTE: Derived from Appendix A to Subpart Q to 40 CFR 141 (2000), as added

amended at 65 Fed. Reg. 26040 (May 4, 1999) 76750 (December 7, 2000), effective December

8, 2003.

(Source: Amended at 25 Ill. Reg. ________ effective ______________________)

Section 611.Appendix H Standard Health Effects Language for Public Notification

Contaminant MCLG

mg/L

MCL

mg/L

Standard health effects language

for public notification

National Primary Drinking Water Regulations (NPDWR):

A. Microbiological Contaminants

1a. Total coliform

Zero

See footnote

Coliforms are bacteria that are

naturally present in the

environment and are used as an

indicator that other, potentially-

harmful, bacteria may be present.

Coliforms were found in more

samples than allowed and this was

a warning of potential problems.

1b. Fecal coliform/E. coli

Zero

Fecal coliforms and E. coli are

bacteria whose presence indicates

that the water may be contaminated

with human or animal wastes.

Microbes in these wastes can cause

short-term effects, such as diarrhea,

cramps, nausea, headaches, or other

symptoms. They may pose a

special health risk for infants,

young children, some of the

elderly, and people with severely

compromised immune systems.

159

2a. Turbidity (MCL)

None

1 NTU

NTU

Turbidity has no health effects.

However, turbidity can interfere

with disinfection and provide a

medium for microbial growth.

Turbidity may indicate the

presence of disease-causing

organisms. These organisms

include bacteria, viruses, and

parasites that can cause symptoms

such as nausea, cramps, diarrhea

and associated headaches.

2b. Turbidity (SWTR TT)

None

Turbidity has no health effects.

However,

turbidity can interfere

with disinfection and provide a

medium for microbial growth.

Turbidity may indicate the

presence of disease-causing

organisms. These organisms

include bacteria, viruses, and

parasites that can cause symptoms

such as nausea, cramps, diarrhea

and associated headaches.

2c. Turbidity (IESWTR TT)

None

Turbidity has no health effects.

However,

turbidity can interfere

with disinfection and provide a

medium for microbial growth.

Turbidity may indicate the

presence of disease-causing

organisms. These organisms

include bacteria, viruses, and

parasites that can cause symptoms

such as nausea, cramps, diarrhea

and associated headaches.

B. Surface Water Treatment Rule (SWTR) and Interim Enhanced Surface Water

Treatment Rule (IESWTR) violations

3. Giardia lamblia

(SWTR/IESWTR)

Zero TT

Inadequately treated water may

contain disease-causing organisms.

These organisms include bacteria,

viruses, and parasites which that

can cause symptoms such as

nausea, cramps, diarrhea, and

associated headaches.

4. Viruses

(SWTR/IESWTR)

160

5. Heterotrophic plate count

(HPC) bacteria

(SWTR/IESWTR)

6. Legionella

(SWTR/IESWTR)

7. Cryptosporidium

(IESWTR)

C. Inorganic Chemicals (IOCs)

8. Antimony

0.006

Some people who drink water

containing antimony well in excess

of the MCL over many years could

experience increases in blood

cholesterol and decreases in blood

sugar.

9. Arsenic

None

0.05

Some people who drink water

containing arsenic in excess of the

MCL over many years could

experience skin damage or

problems with their circulatory

system, and may have an increased

risk of getting cancer.

10. Asbestos (10 μm)

7 MFL

7MFL

Some people who drink water

containing asbestos in excess of the

MCL over many years may have an

increased risk of developing benign

intestinal polyps.

11. Barium

Some people who drink water

containing barium in excess of the

MCL over many years could

experience an increase in their

blood pressure.

12. Beryllium

0.004

Some people who drink water

containing beryllium well in excess

of the MCL over many years could

develop intestinal lesions.

13. Cadmium

0.005

Some people who drink water

containing cadmium in excess of

the MCL over many years could

experience kidney damage.

14. Chromium (total)

0.1

Some people who use water

containing chromium well in

excess of the MCL over many

years could experience allergic

dermatitis.

161

15. Cyanide

0.2

Some people who drink water

containing cyanide well in excess

of the MCL over many years could

experience nerve damage or

problems with their thyroid.

16. Fluoride

4.0

Some people who drink water

containing fluoride in excess of the

MCL over many years could get

bone disease, including pain and

tenderness of the bones. Fluoride in

drinking water at half the MCL or

more may cause mottling of

children’s teeth, usually in children

less than nine years old. Mottling,

also known as dental fluorosis, may

include brown staining and/or

pitting of the teeth, and occurs only

in developing teeth before they

erupt from the gums.

17. Mercury (inorganic)

0.002

Some people who drink water

containing inorganic mercury well

in excess of the MCL over many

years could experience kidney

damage.

18. Nitrate

Infants below the age of six months

who drink water containing nitrate

in excess of the MCL could

become seriously ill and, if

untreated, may die. Symptoms

include shortness of breath and

blue baby syndrome.

19. Nitrite

Infants below the age of six months

who drink water containing nitrite

in excess of the MCL could

become seriously ill and, if

untreated, may die. Symptoms

include shortness of breath and

blue baby syndrome.

20. Total Nitrate and Nitrite

Infants below the age of six months

who drink water containing nitrate

and nitrite in excess of the MCL

could become seriously ill and, if

untreated, may die. Symptoms

include shortness of breath and

blue baby syndrome.

162

21. Selenium

0.05

Selenium is an essential nutrient.

However, some people who drink

water containing selenium in

excess of the MCL over many

years could experience hair or

fingernail losses, numbness in

fingers or toes, or problems with

their circulation.

22. Thallium

0.0005

0.002

Some people who drink water

containing thallium in excess of the

MCL over many years could

experience hair loss, changes in

their blood, or problems with their

kidneys, intestines, or liver.

D. Lead and Copper Rule

23. Lead

Zero

Infants and children who drink

water containing lead in excess of

the action level could experience

delays in their physical or mental

development. Children could show

slight deficits in attention span and

learning abilities. Adults who drink

this water over many years could

develop kidney problems or high

blood pressure.

24. Copper

1.3

Copper is an essential nutrient, but

some people who drink water

containing copper in excess of the

action level over a relatively short

amount of time could experience

gastrointestinal distress. Some

people who drink water containing

copper in excess of the action level

over many years could suffer liver

or kidney damage. People with

Wilson’s Disease should consult

their personal doctor.

E. Synthetic Organic Chemicals (SOCs)

25. 2,4-D

0.07

Some people who drink water

containing the weed killer 2,4-D

well in excess of the MCL over

many years could experience

problems with their kidneys, liver,

or adrenal glands.

163

26. 2,4,5-TP (silvex)

0.05

Some people who drink water

containing silvex in excess of the

MCL over many years could

experience liver problems.

27. Alachlor

Zero

0.002

Some people who drink water

containing alachlor in excess of the

MCL over many years could have

problems with their eyes, liver,

kidneys, or spleen, or experience

anemia, and may have an increased

risk of getting cancer.

28. Atrazine

0.003

Some people who drink water

containing atrazine well in excess

of the MCL over many years could

experience problems with their

cardiovascular system or

reproductive difficulties.

29. Benzo(a)pyrene

(PAHs).

Zero

0.0002

Some people who drink water

containing benzo(a)pyrene in

excess of the MCL over many

years may experience reproductive

difficulties and may have an

increased risk of getting cancer.

30. Carbofuran

0.04

Some people who drink water

containing carbofuran in excess of

the MCL over many years could

experience problems with their

blood, or nervous or reproductive

systems.

31. Chlordane

Zero

0.002

Some people who drink water

containing chlordane in excess of

the MCL over many years could

experience problems with their

liver or nervous system, and may

have an increased risk of getting

cancer.

32. Dalapon

0.2

Some people who drink water

containing dalapon well in excess

of the MCL over many years could

experience minor kidney changes.

164

33. Di (2-ethylhexyl)adipate

Di(2-ethylhexyl)adipate

0.4

Some people who drink water

containing di(2-ethylhexyl) adipate

di(2-ethylhexyl)adipate well in

excess of the MCL over many

years could experience general

toxic effects or reproductive

difficulties.

34. Di (2-ethylhexyl)-

phthalate Di(2-ethylhexyl)-

phthalate

Zero 0.006

Some people who drink water

containing di(2-ethylhexyl)

phthalate di(2-ethylhexyl)phthalate

in excess of the MCL over many

years may have problems with their

liver, or experience reproductive

difficulties, and may have an

increased risk of getting cancer.

35. Dibromochloropropane

(DBCP)

Zero

0.0002

Some people who drink water

containing DBCP in excess of the

MCL over many years could

experience reproductive difficulties

and may have an increased risk of

getting cancer.

36. Dinoseb

0.007

Some people who drink water

containing dinoseb well in excess

of the MCL over many years could

experience reproductive

difficulties.

37. Dioxin (2,3,7,8-TCDD)

Zero

3 x 10

-8

Some people who drink water

containing dioxin in excess of the

MCL over many years could

experience reproductive difficulties

and may have an increased risk of

getting cancer.

38. Diquat

0.02

Some people who drink water

containing diquat in excess of the

MCL over many years could get

cataracts.

39. Endothall

0.1

Some people who drink water

containing endothall in excess of

the MCL over many years could

experience problems with their

stomach or intestines.

40. Endrin

0.002

Some people who drink water

containing endrin in excess of the

MCL over many years could

experience liver problems.

165

41. Ethylene dibromide

Zero

0.00005 Some people who drink water

containing ethylene dibromide in

excess of the MCL over many

years could experience problems

with their liver, stomach,

reproductive system, or kidneys,

and may have an increased risk of

getting cancer.

42. Glyphosate

0.7

Some people who drink water

containing glyphosate in excess of

the MCL over many years could

experience problems with their

kidneys or reproductive difficulties.

43. Heptachlor

Zero

0.0004

Some people who drink water

containing heptachlor in excess of

the MCL over many years could

experience liver damage and may

have an increased risk of getting

cancer.

44. Heptachlor epoxide

Zero

0.0002

Some people who drink water

containing heptachlor epoxide in

excess of the MCL over many

years could experience liver

damage, and may have an increased

risk of getting cancer.

45. Hexachlorobenzene

Zero

0.001

Some people who drink water

containing hexachlorobenzene in

excess of the MCL over many

years could experience problems

with their liver or kidneys, or

adverse reproductive effects, and

may have an increased risk of

getting cancer.

46. Hexachlorocyclopenta-

diene

0.05

Some people who drink water

containing hexachlorocyclopenta-

diene well in excess of the MCL

over many years could experience

problems with their kidneys or

stomach.

47. Lindane

0.0002

Some people who drink water

containing lindane in excess of the

MCL over many years could

experience problems with their

kidneys or liver.

166

48. Methoxychlor

0.04

Some people who drink water

containing methoxychlor in excess

of the MCL over many years could

experience reproductive

difficulties.

49. Oxamyl (Vydate)

0.2

Some people who drink water

containing oxamyl in excess of the

MCL over many years could

experience slight nervous system

effects.

50. Pentachlorophenol

Zero

0.001

Some people who drink water

containing pentachlorophenol in

excess of the MCL over many

years could experience problems

with their liver or kidneys, and may

have an increased risk of getting

cancer.

51. Picloram

0.5

Some people who drink water

containing picloram in excess of

the MCL over many years could

experience problems with their

liver.

52. Polychlorinated

biphenyls (PCBs)

Zero

0.0005

Some people who drink water

containing PCBs in excess of the

MCL over many years could

experience changes in their skin,

problems with their thymus gland,

immune deficiencies, or

reproductive or nervous system

difficulties, and may have an

increased risk of getting cancer.

53. Simazine

0.004

Some people who drink water

containing simazine in excess of

the MCL over many years could

experience problems with their

blood.

54. Toxaphene

Some people who drink water

containing toxaphene in excess of

the MCL over many years could

have problems with their kidneys,

liver, or thyroid, and may have an

increased risk of getting cancer.

Zero

0.003

167

F. Volatile Organic Chemicals (VOCs)

55. Benzene

Zero

0.005

Some people who drink water

containing benzene in excess of the

MCL over many years could

experience anemia or a decrease in

blood platelets, and may have an

increased risk of getting cancer.

56. Carbon tetrachloride

Some people who drink water

containing carbon tetrachloride in

excess of the MCL over many

years could experience problems

with their liver and may have an

increased risk of getting cancer.

Zero

0.005

57. Chlorobenzene (mono-

chlorobenzene)

0.1

Some people who drink water

containing chlorobenzene in excess

of the MCL over many years could

experience problems with their

liver or kidneys.

58. o-Dichlorobenzene

0.6

Some people who drink water

containing o- dichlorobenzene well

in excess of the MCL over many

years could experience problems

with their liver, kidneys, or

circulatory systems.

59. p-Dichlorobenzene

0.075

Some people who drink water

containing p- dichlorobenzene in

excess of the MCL over many

years could experience anemia,

damage to their liver, kidneys, or

spleen, or changes in their blood.

60. 1,2-Dichloroethane

Zero

0.005

Some people who drink water

containing 1,2-dichloroethane in

excess of the MCL over many

years may have an increased risk of

getting cancer.

61. 1,1-Dichloroethylene

0.007

Some people who drink water

containing 1,1-dichloroethylene in

excess of the MCL over many

years could experience problems

with their liver.

62. cis-1,2-Dichloro-

ethylene

0.07

Some people who drink water

containing cis-1,2-dichloroethylene

in excess of the MCL over many

years could experience problems

with their liver.

168

63. trans-1,2-Dichloro-

ethylene

0.1

Some people who drink water

containing trans-1,2-dichloro-

ethylene well in excess of the MCL

over many years could experience

problems with their liver.

64. Dichloromethane

Zero

0.005

Some people who drink water

containing dichloromethane in

excess of the MCL over many

years could have liver problems

and may have an increased risk of

getting cancer.

65. 1,2-Dichloropropane

Zero

0.005

Some people who drink water

containing 1,2-dichloropropane in

excess of the MCL over many

years may have an increased risk of

getting cancer.

66. Ethylbenzene

0.7

Some people who drink water

containing ethylbenzene well in

excess of the MCL over many

years could experience problems

with their liver or kidneys.

67. Styrene

0.1

Some people who drink water

containing styrene well in excess of

the MCL over many years could

have problems with their liver,

kidneys, or circulatory system.

68. Tetrachloroethylene

Zero

0.005

Some people who drink water

containing tetrachloroethylene in

excess of the MCL over many

years could have problems with

their liver, and may have an

increased risk of getting cancer.

69. Toluene

Some people who drink water

containing toluene well in excess of

the MCL over many years could

have problems with their nervous

system, kidneys, or liver.

70. 1,2,4-Trichlorobenzene

0.07

Some people who drink water

containing 1,2,4-trichlorobenzene

well in excess of the MCL over

many years could experience

changes in their adrenal glands.

169

71. 1,1,1-Trichloroethane

0.2

Some people who drink water

containing 1,1,1-trichloroethane in

excess of the MCL over many

years could experience problems

with their liver, nervous system, or

circulatory system.

72. 1,1,2-Trichloroethane

0.003

0.005

Some people who drink water

containing 1,1,2-trichloroethane

well in excess of the MCL over

many years could have problems

with their liver, kidneys, or

immune systems.

73. Trichloroethylene

Zero

0.005

Some people who drink water

containing trichloroethylene in

excess of the MCL over many

years could experience problems

with their liver and may have an

increased risk of getting cancer.

74. Vinyl chloride

Zero

Some people who drink water

containing vinyl chloride in excess

of the MCL over many years may

have an increased risk of getting

cancer.

0.002

75. Xylenes (total)

Some people who drink water

containing xylenes in excess of the

MCL over many years could

experience damage to their nervous

system.

G. Radioactive Contaminants

76. Beta/photon emitters

Zero

4 mrem/yr

Certain minerals are radioactive

and may emit forms of radiation

known as photons and beta

radiation. Some people who drink

water containing beta and photon

emitters in excess of the MCL over

many years may have an increased

risk of getting cancer.

77. Alpha emitters

Zero

15 pCi/L

Certain minerals are radioactive

and may emit a form of radiation

known as alpha radiation. Some

people who drink water containing

alpha emitters in excess of the

MCL over many years may have an

increased risk of getting cancer.

170

78. Combined radium (226

& 228)

Zero

5 pCi/L

Some people who drink water

containing radium 226 or 228 in

excess of the MCL over many

years may have an increased risk of

getting cancer.

79. Uranium

Zero

g/L

Some people who drink water

containing uranium in excess of the

MCL over many years may have an

increased risk of getting cancer and

kidney toxicity.

H. Disinfection Byproducts (DBPs), Byproduct Precursors, and Disinfectant

Residuals: Where disinfection is used in the treatment of drinking water,

disinfectants combine with organic and inorganic matter present in water to form

chemicals called disinfection byproducts (DBPs). USEPA sets standards for

controlling the levels of disinfectants and DBPs in drinking water, including

trihalomethanes (THMs) and haloacetic acids (HAA5).

1617

79. 80. Total

trihalomethanes (TTHMs)

N/A 0.10/0.080

1818

Some people who drink water

containing trihalomethanes in

excess of the MCL over many

years may experience problems

with their liver, kidneys, or central

nervous system, and may have an

increased risk of getting cancer.

80. 81. Haloacetic Acids

(HAA5)

0.060

N/A

Some people who drink water

containing haloacetic acids in

excess of the MCL over many

years may have an increased risk of

getting cancer.

81. 82. Bromate

Zero

0.010

Some people who drink water

containing bromate in excess of the

MCL over many years may have an

increased risk of getting cancer.

82. 83. Chlorite

0.08

1.0

Some infants and young children

who drink water containing chlorite

in excess of the MCL could

experience nervous system effects.

Similar effects may occur in fetuses

of pregnant women who drink

water containing chlorite in excess

of the MCL. Some people may

experience anemia.

171

83. 84. Chlorine 4

(MRDLG)

4.0 (MRDL)

Some people who use water

containing chlorine well in excess

of the MRDL could experience

irritating effects to their eyes and

nose. Some people who drink water

containing chlorine well in excess

of the MRDL could experience

stomach discomfort.

84. 85. Chloramines

4 (MRDLG)

4.0 (MRDL)

Some people who use water

containing chloramines well in

excess of the MRDL could

experience irritating effects to their

eyes and nose. Some people who

drink water containing chloramines

well in excess of the MRDL could

experience stomach discomfort or

anemia.

85a. 85a. Chlorine dioxide,

where any 2 two

consecutive daily samples

taken at the entrance to the

distribution system are

above the MRDL

0.8

(MRDLG)

0.8 (MRDL)

Some infants and young children

who drink water containing

chlorine dioxide in excess of the

MRDL could experience nervous

system effects. Similar effects may

occur in fetuses of pregnant women

who drink water containing

chlorine dioxide in excess of the

MRDL. Some people may

experience anemia.

Add for public notification only:

The chlorine dioxide violations

reported today are the result of

exceedances exceedences at the

treatment facility only, not within

the distribution system which that

delivers water to consumers.

Continued compliance with

chlorine dioxide levels within the

distribution system minimizes the

potential risk of these violations to

consumers.

172

85b. 86a. Chlorine dioxide,

where one or more

distribution system samples

are above the MRDL

0.8

(MRDLG)

0.8 (MRDL)

Some infants and young children

who drink water containing

chlorine dioxide in excess of the

MRDL could experience nervous

system effects. Similar effects may

occur in fetuses of pregnant women

who drink water containing

chlorine dioxide in excess of the

MRDL. Some people may

experience anemia.

Add for public notification only:

The chlorine dioxide violations

reported today include exceedances

exceedences of the USEPA

standard within the distribution

system which that delivers water to

consumers. Violations of the

chlorine dioxide standard within

the distribution system may harm

human health based on short- term

short-term exposures. Certain

groups, including fetuses, infants,

and young children, may be

especially susceptible to nervous

system effects from excessive

chlorine dioxide exposure.

86. 87. Control of DBP

precursors (TOC)

None

Total organic carbon (TOC) has no

health effects. However, total

organic carbon provides a medium

for the formation of disinfection

byproducts. These byproducts

include trihalomethanes (THMs)

and haloacetic acids (HAAs).

Drinking water containing these

byproducts in excess of the MCL

may lead to adverse health effects,

liver or kidney problems, or

nervous system effects, and may

lead to an increased risk of getting

cancer.

I. Other Treatment Techniques:

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87. 88. Acrylamide

Zero

Some people who drink water

containing high levels of

acrylamide over a long period of

time could have problems with

their nervous system or blood, and

may have an increased risk of

getting cancer.

88. 89. Epichlorohydrin

Zero

Some people who drink water

containing high levels of

epichlorohydrin over a long period

of time could experience stomach

problems, and may have an

increased risk of getting cancer.

Appendix H--Endnotes

1. “MCLG” means maximum contaminant level goal.

2. “MCL” means maximum contaminant level.

3. For a water supplier analyzing at least 40 samples per month, no more than 5.0 percent of the

monthly samples may be positive for total coliforms. For a supplier analyzing fewer than 40

samples per month, no more than one sample per month may be positive for total coliforms.

4. There are various regulations that set turbidity standards for different types of systems,

including Section 611.320, the 1989 Surface Water Treatment Rule, and the 1998 Interim

Enhanced Surface Water Treatment Rule. The MCL for the monthly turbidity average is 1 NTU;

the MCL for the 2-day average is 5 NTU for a supplier that is required to filter but has not yet

installed filtration (Section 611.320).

5. “NTU” means nephelometric turbidity unit.

6. There are various regulations that set turbidity standards for different types of systems,

including Section 611.320, the 1989 Surface Water Treatment Rule (SWTR), and the 1998

Interim Enhanced Surface Water Treatment Rule (IESWTR). A supplier subject to the Surface

Water Treatment Rule (both filtered and unfiltered) may not exceed 5 NTU. In addition, in

filtered systems, 95 percent of samples each month must not exceed 0.5 NTU in systems using

conventional or direct filtration and must not exceed 1 NTU in systems using slow sand or

diatomaceous earth filtration or other filtration technologies approved by the Agency.

7. “TT” means treatment technique.

8. There are various regulations that set turbidity standards for different types of systems,

including Section 611.320, the 1989 Surface Water Treatment Rule (SWTR), and the 1998

Interim Enhanced Surface Water Treatment Rule (IESWTR). For a supplier subject to the

IESWTR (systems serving at least 10,000 people, using surface water or groundwater under the

174

direct influence of surface water), that use conventional filtration or direct filtration, after

January 1, 2002, the turbidity level of a system’s combined filter effluent may not exceed 0.3

NTU in at least 95 percent of monthly measurements, and the turbidity level of a system’s

combined filter effluent must not exceed 1 NTU at any time. A supplier subject to the IESWTR

using technologies other than conventional, direct, slow sand, or diatomaceous earth filtration

must meet turbidity limits set by the Agency.

9. The bacteria detected by heterotrophic plate count (HPC) are not necessarily harmful. HPC is

simply an alternative method of determining disinfectant residual levels. The number of such

bacteria is an indicator of whether there is enough disinfectant in the distribution system.

10. SWTR and IESWTR treatment technique violations that involve turbidity exceedances

exceedences may use the health effects language for turbidity instead.

11. Millions of fibers per liter.

12. Action Level = 0.015 mg/L.

13. Action Level = 1.3 mg/L.

14. Millirems per year.

15. Picocuries per liter.

16. The uranium MCL is effective December 8, 2003 for all community water systems.

16. 17. A surface water system supplier or a groundwater system supplier under the direct

influence of surface water are is regulated under Subpart B of this Part. A Supbart B community

water system supplier or a non-transient non-community system supplier that serves 10,000 or

more persons must comply with DBP MCLs and disinfectant maximum residual disinfectant

levels (MRDLs) beginning January 1, 2002. All other community and non-transient non-

community system suppliers must meet the MCLs and MRDLs beginning January 1, 2004.

Subpart B transient non-community system suppliers serving 10,000 or more persons and using

chlorine dioxide as a disinfectant or oxidant must comply with the chlorine dioxide MRDL

beginning January 1, 2002. Subpart B transient non-community system suppliers serving fewer

than 10,000 persons and systems using only groundwater not under the direct influence of

surface water and using chlorine dioxide as a disinfectant or oxidant must comply with the

chlorine dioxide MRDL beginning January 1, 2004.

17. 18. The MCL of 0.10 mg/L for TTHMs is in effect until January 1, 2002 for a Subpart B

community water system supplier serving 10,000 or more persons. This MCL is in effect until

January 1, 2004 for community water systems with a population of 10,000 or more using only

ground water groundwater not under the direct influence of surface water. After these deadlines,

the MCL will be 0.080 mg/L. On January 1, 2004, a supplier serving less fewer than 10,000 will

have to comply with the new MCL as well.

175

18. 19. The MCL for total trihalomethanes is the sum of the concentrations of the individual

trihalomethanes.

19. 20. The MCL for haloacetic acids is the sum of the concentrations of the individual

haloacetic acids.

20. 21. “MRDLG” means maximum residual disinfectant level goal.

21. 22. “MRDL” means maximum residual disinfectant level.

BOARD NOTE: Derived from Appendix B to Subpart Q to 40 CFR 141 (2000), as added at 65

Fed. Reg. 26043 (May 4, 1999) 76751 (December 7, 2000), effective December 8, 2003.

(Source: Amended at 25 Ill. Reg. ________ effective ______________________)