By.

Kimberly Geving

Assistant ounsel

Division of Legal Counsel

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

IN THE MATTER OF:

RECEIVED

CLERK'S OFFICE

FEB 1 9 2008

R08-

11?

STATE

OF ILLINOIS

(Rulemaking-Public Water Supplies)

Pollution Control

Board

PROPOSED AMENDMENTS TO

GROUNDWATER QUALITY

STANDARDS

(35 Ill. Adm. Code 620)

NOTICE

Dorothy Gunn, Clerk

Illinois Pollution Control Board

James R. Thompson Center

100 W. Randolph, Suite 11-500

Chicago, Illinois 60601

Matt Dunn

Environmental Bureau Chief

Office of the Attorney General

James R. Thompson Center

100 W. Randolph, 12

th

Floor

Chicago, Illinois 60601

Bill Richardson

Chief Legal Counsel

Illinois Dept. of Natural Resources

One Natural Resources Way

Springfield, Illinois 62702-1271

PLEASE TAKE NOTICE that I have today filed with the Office of the Clerk of

the Illinois Pollution Control Board the Illinois Environmental Protection Agency's

Motion for Acceptance, Appearance of Attorneys, Certification of Origination, Statement

of Reasons, and the Proposed Amendments a copy of each of which is herewith served

upon you.

ILLINOIS EV1RONMENTAL

PROTECTION AGENCY

DATED: February 15, 2008

1021 North Grand Ave. East

P.O. Box 19276

Springfield, Illinois 62794-9276

(217) 782-5544

---

By:

Dough P. Scott

Director

RECEIVED

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

CLEWS

OFFICE

FEB 1 9 2008

STATE OF ILLINOIS

Pollution Control Board

(Rulemaking-Public Water Supplies)

MOTION FOR ACCEPTANCE

NOW COMES the Illinois Environmental Protection Agency ("Agency") and,

pursuant to 35 Ill. Adm. Code 102.106, 102.200, and 102.202, moves the Illinois

Pollution Control Board ("Board") to accept the Agency proposal for hearing. This

regulatory proposal includes: 1) the Appearance for the attorney representing the

Agency; 2) Certification of Origination; 3) Statement of Reasons; and 4) the Proposed

Amendments.

Respectfully submitted,

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

IN THE MATTER OF:

PROPOSED AMENDMENTS TO

GROUNDWATER QUALITY

STANDARDS

(35 Ill. Adm. Code 620)

ROg-

DATED: FA ructrci 15

) 20

0

8'

1021 North Grand Ave. East

P.O. Box 19276

Sprinfield, Illinois 62794-9276

(217) 782-3397

---

RECEPVED

CLERKS OFFICE

FEB 1 9 2008

BEFORE THE ILLINOIS POLLUTION CONTROL BOAED

bTATE

OF ILLINOIS

Pollution Control Board

PROPOSED AMENDMENTS TO

R08-

GROUNDWATER QUALITY

(Rulemaking-Public Water Supplies)

STANDARDS

(35 Ill. Adm. Code 620)

APPEARANCE

The undersigned, as one of its attorneys, hereby files her entry of Appearance on

behalf of the Illinois Environmental Protection Agency.

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

IN THE MATTER OF:

Geving

Assista t Counsel

Division of Legal Counsel

DATED: February 15, 2008

1021 North Grand Avenue East

P.O. Box 19276

Springfield, Illinois 62794-9276

---

RECEiVED

CLERK'S OFFICE

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

FEB 1 9

2008

P

ollutio

E

n Control

Board

STAT OF ILLINOIS

IN THE MATTER OF:

PROPOSED AMENDMENTS TO

R08- )(1)

GROUNDWATER QUALITY

)

(Rulemaking-Public Water Supplies)

STANDARDS

)

(35 Ill. Adm. Code 620)

)

MOTION FOR LEAVE FROM FILING REQUIREMENT

NOW COMES

the Illinois Environmental Protection Agency ("Illinois EPA")

and, pursuant to 35 Ill. Adm. Code 101.500, moves the Illinois Pollution Control Board

("Board") to waive the filing requirement pursuant to 35 Ill. Adm. Code 101.302(h) for

one of the Illinois EPA's amended Incorporations by Reference.

In support of its motion, the Illinois EPA asserts, and the Board has confirmed,

that the single title for which this motion seeks relief from the filing requirement is

already in the Board's possession. Additionally, it is a voluminous, multiple volume

reference that would be unduly burdensome and costly to copy.

WHEREFORE, the Illinois EPA seeks relief from the filing requirement for the

following title: "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,"

USEPA Publication No. SW-846, as amended by Updates I, II, IIA, IIB, III,IIIA, and

TUB, prepared by USEPA and available from National Technical Information Service,

5285 Port Royal Road, Springfield, VA 22161 or online at

http://wvvw.epa.gov/epaoswer/hazwaste/test/main.htm.

Respectfully submitted,

1

---

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

Kimberly Geving

Assistant ounsel

Division of Legal Counsel

DATED: February 15, 2008

1021 North Grand Avenue East

P.O. Box 19276

Springfield, Illinois 62794-9276

2

---

Kimberly . Geving

Assistant ounsel

Division of Legal Counsel

BEFORE THE ILLINOIS POLLUTION CONTROL

BOARD

RECEIVED

CLERK'S

OFFICE

FES 1 9 2008

STATE

OF ILLINOIS

R08- 1%

Pollution

Control

Board

(Rulemaking-Public Water Supplies)

IN THE MATTER OF:

PROPOSED AMENDMENTS TO

GROUNDWATER QUALITY

STANDARDS

(35 Ill. Adm. Code 620)

CERTIFICATION OF ORIGINATION

NOW COMES

the Illinois Environmental Protection Agency and, pursuant to 35

Ill. Adm. Code 102.202(i), certifies that this proposal for amendments to 35 Ill. Adm.

Code 620 amends the most recent version of that rule as published on the Illinois

Pollution Control Board's website.

Respectfully submitted,

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

DATED: February 15, 2008

1021 North Grand Avenue East

P.O. Box 19276

Springfield, Illinois 62794-9276

(217) 782-5544

---

BEFORE THE ILLINOIS POLLUTION CONTROL BOARD

RECEIVED

F?

19

2008

Pollution

STATE OF

Control

ILLINOIS

B

oard

CLERICS OFFICE

IN THE MATTER OF:

R08- It

(Rulemaking-Public Water Supplies)

PROPOSED AMENDMENTS TO

GROUNDWATER QUALITY

STANDARDS

(35 Ill. Adm. Code 620)

STATEMENT OF REASONS

The Illinois Environmental Protection Agency ("Illinois EPA") hereby submits its

Statement of Reasons for the above-captioned matter to the Illinois Pollution Control

Board ("Board") pursuant to Section 27 of the Illinois Environmental Protection Act

("Act")(415 ILCS 5/27) and 35 Ill. Adm. Code 102.200 and 102.202.

I.

?

FACTS IN SUPPORT, PURPOSE, AND EFFECT

A.

Background, Facts in Support, and Purpose

Since the inception of the Illinois Groundwater Protection Act ("IGPA") [415

ILCS 55] and the Illinois Environmental Protection Act [415 ILCS 5] it has been "the

policy of the State of Illinois to restore, protect, and enhance the groundwaters of the

State, as a natural and public resource." (415 ILCS 55/2(b)). The Groundwater Quality

Standards were originally adopted in November of 1991. Because groundwater has an

essential role in the economic, social, and physical well-being of the people of Illinois, it

is the State's policy to protect groundwater resources of the State so that they may be

used for beneficial and legitimate purposes. The State is also charged under the IGPA

with preventing waste and degradation of the resource and managing groundwater so that

the people of the State may reap maximum benefit from the resource.

Section 12(a) of the Act states that:

1

---

"No person shall: (a) Cause, threaten or allow the

discharge of any contaminants into the environment in any

State so as to cause or tend to cause water pollution in

Illinois, either alone or in combination with matter from

other sources, or so as to violate regulations or standards

adopted by the Pollution Control Board under this Act."

In implementing its charge under the IGPA and the Act, the Illinois EPA

proposed, and the Board adopted, the Groundwater Quality Standards (35 Ill. Adm. Code

620) in 1991. However, in order to prevent waste and degradation of the resource and

manage groundwater so that the people of the State may continue to get the maximum

benefit from the resource, it is periodically necessary to amend the Groundwater Quality

Standards to account for new scientific data, update the groundwater standards that have

been amended at the federal level, update technical references that are in the

Incorporations by Reference, and address any additional groundwater parameters that

have been discovered. Additionally, the Board recommended that regular updates be

done to the regulations (see the Board's fmal opinion and order in R89-14(B)).

B.

Regulatory Development

As stated above, the proposed amendments are intended to keep the regulations

current as the science and technical data behind the standards evolves. While the

amendments were initially developed by an internal agency workgroup, the Illinois EPA

did conduct two outreach sessions so that members of the regulated community and

environmental interest groups had the opportunity to provide input on the regulations

before they were proposed to the Board.

The first outreach meeting was held on May 9, 2007 at the Illinois EPA and was

attended by approximately thirty (30) individuals. Attendees were comprised of

consultants, environmental groups, other State agencies, and representatives of the

2

---

Groundwater Advisory Council and the Interagency Coordinating Committee on

Groundwater. The second outreach meeting was held at Hodge, Dwyer, Zeman and was

attended by members of the Illinois Environmental Regulatory Group.

As a result of the two outreach sessions, the Illinois EPA made several changes to

its proposal to address comments and concerns received during the outreach period. The

Illinois EPA believes that the proposal was well received and is non-controversial.

C.

Affected Sources and Facilities

Sources and facilities that may be impacted by these amendments would include

any sources or facilities that cause, threaten, or allow contamination of groundwater.

Additionally, any consumers of the resource may also be impacted since requiring

remediation up to the groundwater standards would protect the end user of the resource.

D.

Technical Feasibility and Economic Impact

The Illinois EPA believes that the economic impact of the proposed numerical

groundwater standards is not significant. The new groundwater quality standards do not

establish new corrective action or monitoring programs. Remediation objectives have

already been established for the majority of the constituents proposed in this proceeding

based on the values set forth in the Tiered Approach to Corrective Action Objectives

("TACO") rules (35 Ill. Adm. Code 742). Additionally, any new constituent standards

will be phased into existing programs, as appropriate, over time. For example, RCRA

facilities will incorporate the new groundwater quality standards as modifications to

existing permits are made pursuant to 35 Ill. Adm. Code 702.184 and modifications to

closure plans and post-closure plans are made pursuant to 35 Ill. Adm. Code 725.212 and

725.218, respectively. Therefore, any economic impact resulting from the adoption and

3

---

application of these new standards will be incremental and would occur on a site-by-site

basis over time.

The Board has already evaluated the economic impact of groundwater standards

on three separate occasions (not including the original groundwater standards included in

1971 (R71-14)). First, on November 25, 1991, the Board's groundwater quality

standards, mandated by 415 ILCS 55/8, became effective. Those regulations included

numerical standards for 60 contaminants. The Board took into consideration the

technical feasibility and economical reasonableness and concluded that the adoption of

60 Class I and Class II standards would not have a significant economic impact (R89-

14(B) at p. 25). Furthermore, the Board indicated the following economic benefits would

result from the adoption of groundwater standards (R89-14(B) at pp. 22-26): reduction of

carcinogenic health risks; reduced expenses for treatment of water at wellheads; and

reduced expenses for obtaining water supplies.

Second, the Board also added 16 additional Class I and II standards by the

adoption of R93-27. The regulation was adopted as a final rule on August 11, 1994. The

addition of the 16 new groundwater standards at 1/4 of the magnitude of the original 60

constituents also did not have an economic impact.

Third, the Board adopted new groundwater standards for MTBE on January 24,

2002 (R01-14). The Board did not deteiuiine that a negative economic impact would

occur due to the adoption of the groundwater standards even though MTBE is an

extremely difficult contaminant to remove from groundwater. In contrast, the Board

emphasized the environmental benefit of adopting a groundwater standard for MTBE

even though USEPA had not established an MCL.

4

---

II. THE PROPOSED AMENDMENTS

A.

Subpart A

Amendments to Subpart A include: a new citation within the definition of

"Detection"; the addition of two new definitions for "Wellhead protection area" and

"Wellhead protection program"; corrected citations to definitions from the Act; and the

addition of numerous new incorporations by reference.

B.

Subpart

B

Amendments to Subpart B include: the removal of an "or" in Section

620.201(a)(4) and a corrected ASTM reference in Section 620.210(a)(2).

C.

Subpart C

Amendments to Subpart C include: a correction to the name of agencies that were

consolidated into one State agency and the inclusion of 23 preventive response levels for

contaminants, not classified as carcinogens, with proposed Class I standards that are

based on a statistical increase above background.

D.

Subpart D

Amendments to Subpart D include: new standards proposed in Section

620.410(a) that are based on either the USEPA or Board MCL or a reference dose in

USEPA's Integrated Risk Information System ("IRIS"); inclusion in Section 620.410(b)

of Class I: Potable Resource Groundwater Standards for eight volatile organic

contaminants, nineteen semi volatile organic contaminants, and three pesticides or PCBs;

and addition of a new subsection (c) that establishes Class I: Potable Resource

Groundwater Standards for eight explosive contaminants. Section 620.420 makes similar

changes by adding new Class

General Resource Groundwater Standards to a similar

5

---

list of contaminants and also adds a new subsection (c) to address explosives.

Amendments to Section 620.440(c) would establish a Class IV standard for explosives

within previously mined areas, which would move the point of compliance from the pit

of the mine to the boundary of the permitted area. Finally, proposed amendments to

Section 620.450(b)(3) include a new subsection (D) that would include a list of explosive

contaminants that, if present after coal reclamation, would set their groundwater standard

as the existing concentration of the contaminants.

E.

Subpart E

Amendments to Subpart E include: provisions for determining compliance with

the Board's groundwater quality standards; new procedural methods for how samples

must be collected; and new methodologies to be used for analysis of constituents in

Subparts C and D.

F.

Subpart F

Amendments to Subpart F include: changing Federal Register citations to Code

of Federal Regulations citations, amending the provision regarding how the guidance

level is determined for a Health Advisory if the substance is a carcinogen, and proposing

an amendment to cap Health Advisories at water solubility.

G.

Appendix A

Amendments to Appendix A change federal register citations to Code of Federal

Regulations citations.

III. AGENCY WITNESSES AND SYNOPSIS OF TESTIMONY

The Illinois EPA will provide two witnesses who will be available to testify at

hearing. The witnesses will include Richard Cobb and Dr. Thomas Homshaw.

6

---

Richard Cobb will testify on all of the amendments with the exception of those

amendments to Subpart F that pertain to the Health Advisory. Dr. Homshaw will be

testifying on the Health Advisory.

The Illinois EPA will submit written testimony in advance of the hearings

pursuant to any hearing officer order that follows this proposal.

IV. PUBLISHED STUDIES OR RESEARCH REPORTS USED IN

DEVELOPING THE RULE

The following list constitutes the studies and reports that the Illinois EPA used in

developing the proposed amendments. In addition to being included in the

Incorporations by Reference (complete with document numbers), they are also cited in

various sections of the rule.

1.

"Standard Practice for Classification of Soils for Engineering Purposes (Unified

Classification System)" ASTM D2487-06. The material is prepared by and available

from ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken,

PA 19428-2959.

2.

"Guidance Document for Groundwater Protection Needs Assessments (January

1995)," Prepared by the Illinois EPA, Illinois State Water Survey, and Illinois State

Geologic Survey and available from the Illinois EPA, 1020 N. Grand Ave. East, PO Box

19276, Springfield, IL 62794-9276.

3.

"The Illinois Wellhead Protection Program Pursuant to Section 1428 of the Federal

Safe Drinking Water Act (#22480, October 1992)," prepared by and available from the

Illinois EPA, 1020 N. Grand Ave. East, PO Box 19276, Springfield, IL 62794-9276.

4.

"Methods for Chemical Analysis of Water and Wastes (March 1983)," prepared by

USEPA and available from National Technical Information Service, 5285 Port Royal

Road, Springfield, VA 22161 or online at http://nepis.epa.gov/.

5.

"Methods for the Determination of Inorganic Substances in Environmental Samples

(August 1993)," prepared by USEPA and available from National Technical Information

Service, 5285 Port Royal Road, Springfield, VA 22161 or online at http://nepis.epa.gov/.

6.

"Methods for the Deteimination of Metals in Environmental Samples (June 1991),"

prepared by USEPA and available from National Technical Information Service, 5285

Port Royal Road, Springfield, VA 22161 or online at http://nepis.epa.gov/.

7

---

7.

"Methods for the Determination of Metals in Environmental Samples-Supplement I

(May 1994)," prepared by USEPA and available from National Technical Information

Service, 5285 Port Royal Road, Springfield, VA 22161 or online at http://nepis.e_pa.gov/.

8.

"Methods for the Determination of Organic Compounds in Drinking Water (revised

July 1991)," prepared by USEPA and available from National Technical Information

Service, 5285 Port Royal Road, Springfield, VA 22161 or online at http://nepis.epa.gov/.

9.

"Methods for the Determination of Organic Compounds in Drinking Water,

Supplement I (July 1990)," prepared by USEPA and available from National Technical

Information Service, 5285 Port Royal Road, Springfield, VA 22161 or online at

http://nepis.epa.gov/.

10.

"Methods for the Determination of Organic Compounds in Drinking Water,

Supplement II (August 1992)," prepared by USEPA and available from National

Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 or online

at http://nepis.epa.gov/.

11.

"Methods for the Determination of Organic Compounds in Drinking Water,

Supplement III (August 1995)," prepared by USEPA and available from National

Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 or online

at http://nepis.epa.gov/.

12.

"Methods for the Determination of Organic and Inorganic Compounds in Drinking

Water: Volume I (August 2000)," prepared by USEPA and available from National

Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161 or online

at http ://nepi s . epa. gov/.

13.

"Prescribed Procedures for Measurement of Radioactivity in Drinking Water (August

1980)," prepared by USEPA and available from National Technical Information Service,

5285 Port Royal Road, Springfield, VA 22161 or online at http://nepis.epa.gov/.

14.

"Procedures for Radiochemical Analysis of Nuclear Reactor Aqueous Solutions

(May 1973)," prepared by H.L. Krieger and S. Gold and available from National

Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161.

15.

"Radiochemical Analytical Procedures for Analysis of Environmental Samples

(March 1979)," prepared by USEPA and available from National Technical Information

Service, 5285 Port Royal Road, Springfield, VA 22161.

16.

"Radiochemistry Procedures Manual (December 1987)," prepared by USEPA and

available from National Technical Information Service, 5285 Port Royal Road,

Springfield, VA 22161.

8

---

Kimberl A. Geving

Assistan Counsel

Division of Legal Counsel

B

17. "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods," USEPA

Publication No. SW-846, as amended by Updates I, II,

IlL13,

II1A, and 11E3,

prepared by USEPA and available from National Technical Information Service, 5285

Port Royal Road, Springfield, VA 22161 or online at

http ://www. ep a. gov/ep ao sw er/hazwaste/test/main. htm.

WHEREFORE, the Illinois EPA requests that the Board accept this proposal in its

entirety for hearing.

Respectfully submitted,

ILLINOIS ENVIRONMENTAL

PROTECTION AGENCY

DATED: February 15, 2008

1021 N. Grand Ave

PO Box 19276

Springfield, Illinois

(217) 782-5544

. East

62794-9276

9

---

TITLE 35: ENVIRONMENTAL PROTECTION

SUBTITLE F: PUBLIC WATER SUPPLIES

CHAPTER I: POLLUTION CONTROL BOARD

PART 620

GROUNDWATER QUALITY

SUBPART A: GENERAL

Section

620.105

Purpose

620.110

Definitions

620.115

Prohibition

620.125

Incorporations by Reference

620.130

Exemption from General Use Standards and Public and Food Processing

Water Supply Standards

620.135

Exclusion for Underground Waters in Certain Man-Made Conduits

SUBPART B: GROUNDWATER CLASSIFICATION

Section

620.201

620.210

620.220

620.230

620.240

620.250

620.260

Groundwater Designations

Class I: Potable Resource Groundwater

Class General Resource Groundwater

Class Ill: Special Resource Groundwater

Class IV: Other Groundwater

Groundwater Management Zone

Reclassification of Groundwater by Adjusted Standard

SUBPART C: NONDEGRADATION PROVISIONS FOR APPROPRIATE

GROUNDWATERS

Section

620.301

620.302

620.305

620.310

General Prohibition Against Use Impairment of Resource Groundwater

Applicability of Preventive Notification and Preventive Response

Activities

Preventive Notification Procedures

Preventive Response Activities

SUBPART D: GROUNDWATER QUALITY STANDARDS

Section

620.401

Applicability

620.405

General Prohibitions Against Violations of Groundwater Quality

Standards

---

620.410

620.420

620.430

620.440

620.450

Groundwater Quality Standards for Class I: Potable Resource Groundwater

Groundwater Quality Standards for Class II: General Resource

Groundwater

Groundwater Quality Standards for Class

Special Resource

Groundwater

Groundwater Quality Standards for Class IV: Other Groundwater

Alternative Groundwater Quality Standards

SUBPART E: GROUNDWATER MONITORING AND ANALYTICAL

PROCEDURES

Section

620.505

Compliance Determination

620.510

Monitoring and Analytical Requirements

SUBPART F: HEALTH ADVISORIES

Purpose of a Health Advisory

Issuance of a Health Advisory

Publishing Health Advisories

Additional Health Advice for Mixtures of Similar-Acting Substances

Procedures for Determining Human Threshold Toxicant Advisory

Concentration for Class I: Potable Resource Groundwater

Procedures for Determining Hazard Indices for Class I: Potable Resource

Groundwater for Mixtures of Similar-Acting Substances

Guidelines for Determining When Dose Addition of Similar-Acting

Substances in Class I: Potable Resource Groundwaters is Appropriate

Confirmation of an Adequate Corrective Action Pursuant to 35 Ill. Adm.

Code 620.250(a)(2)

Section

620.601

620.605

620.610

620.615

Appendix A

Appendix B

Appendix C

Appendix D

AUTHORITY: Implementing and authorized by Section 8 of the Illinois Groundwater

Protection Act [415 ILCS 55/8] and authorized by Section 27 of the Illinois

Environmental Protection Act [415 ILCS 5/27].

SOURCE: Adopted in R89-14(B) at 15 Ill. Reg. 17614, effective November 25, 1991;

amended in R89-14(C) at 16 Ill. Reg. 14667, effective September 11, 1992; amended at

18 Ill. Reg. 14084, effective August 24, 1994; amended in R96-10 at 21 Ill. Reg. 6518,

effective May 8, 1997; amended in R97-11 at 21 Ill. Reg. 7869, effective July 1, 1997;

amended in R01-14 at 26 Ill. Reg. 2662, effective February 5, 2002.

SUBPART A: GENERAL

---

Section 620.110

Definitions

The definitions of the Environmental Protection Act [415 ILCS 5] and the Groundwater

Protection Act [415 ILCS 55] apply to this Part. The following definitions also apply to

this Part.

"Act" means the Environmental Protection Act [415 ILCS 5].

"Agency" means the Illinois Environmental Protection Agency.

"Aquifer" means saturated (with groundwater) soils and geologic

materials which are sufficiently permeable to readily yield economically

useful quantities of water to wells, springs, or streams under ordinary

hydraulic gradients.

[415 ILCS 55/3(b)]

"BETX" means the sum of the concentrations of benzene, ethylbenzene,

toluene, and xylenes.

"Board" means the Illinois Pollution Control Board.

Carcinogen" means a contaminant that is classified as a Category Al or

A2 Carcinogen by the American Conference of Governmental Industrial

Hygienists; or a Category 1 or 2A/2B carcinogen by the World Health

Organization's International Agency for Research on Cancer; or a

"Human carcinogen" or "Anticipated Human Carcinogen" by the United

States Department of Health and Human Service National Toxicological

Program; or a Category A or B1/B2 Carcinogen by the United States

Environmental Protection Agency in Integrated Risk Information System

or a Final Rule issued in a Federal Register notice by the USEPA.

[415

ILCS 5/58.2]

"Community water supply" means a public supply which serves or is

intended to serve at least 15 service connections used by residents or

regularly serves at least 25 residents.

[415 ILCS

5/3.145 3.05]

"Contaminant" means any solid, liquid, or gaseous matter, any odor, or

any form of energy, from whatever source.

[415 ILCS

5/3.165 3.06]

"Corrective action process" means those procedures and practices that may

be imposed by a regulatory agency when a determination has been made

that contamination of groundwater has taken place, and are necessary to

address a potential or existing violation of the standards set forth in

Subpart D.

"Cumulative impact area" means the area, including the coal mine area

---

peimitted under the Surface Coal Mining Land Conservation and

Reclamation Act [225 ELCS 720] and 62 Ill. Adm. Code 1700 through

1850, within which impacts resulting from the proposed operation may

interact with the impacts of all anticipated mining on surface water and

groundwater systems.

"Depar

tment" means the Illinois Department of Natural Resources.

"Detection" means the identification of a contaminant in a sample at a

value equal to or greater than the:

"Method Detection Limit" or "MDL" means the minimum

concentration of a substance that can be measured as reported with

99 percent confidence that the true value is greater than zero,

pursuant to 40 CFR 136, Appendix B (2006) 56 Fed. Rcg. 3526

3597, incorporated by reference at Section 620.125; or

"Method Quantitation Limit" or "MQL" means the minimum

concentration of a substance that can be measured and reported

pursuant to "Test Methods for Evaluating Solid Wastes, Physical/

Chemical Methods", incorporated by reference at Section 620.125.

"Groundwater" means underground water which occurs within the

saturated zone and geologic materials where the fluid pressure in the pore

space is equal to or greater than atmospheric pressure.

[415 ILCS

5/3.210 3.61]

"Hydrologic balance" means the relationship between the quality and

quantity of water inflow to, water outflow from, and water storage in a

hydrologic unit such as a drainage basin, aquifer, soil zone, lake, or

reservoir. It encompasses the dynamic relationships among precipitation,

runoff, evaporation, and changes in ground and surface water storage.

"IGPA" means the Illinois Groundwater Protection Act. [415 TLCS 55]

"LOAEL" or "Lowest observable adverse effect level" means the lowest

tested concentration of a chemical or substance that produces a statistically

significant increase in frequency or severity of non-overt adverse effects

between the exposed population and its appropriate control. LOAEL may

be determined for a human population (LOAEL-H) or an animal

population (LOAEL-A).

"Licensed Professional Engineer"

or "LPE"

means a person, corporation,

or partnership licensed under the laws of the State of Illinois to practice

professional engineering.

[415 ELCS 5/57.2]

---

"Licensed Professional Geologist"

or "LPG"

means an individual who is

licensed under the

Professional Geologist Licensing Act

to engage in the

practice of professional geology in Illinois.

(Professional Geologist

Licensing Act [225 ILCS 745/15])

"NOAEL" or "No observable adverse effect level" means the highest tested

concentration of a chemical or substance that does not produce a

statistically significant increase in frequency or severity of non-overt

adverse effects between the exposed population and its appropriate control.

NOAEL may be determined for a human population (NOAEL-H) or an

animal population (NOAEL-A).

"Non-community water supply" means a public water supply that is not a

community water supply.

[415 ILCS 5/3.145 3.05]

"Off-site" means not on-site.

"On-site" means on the same or geographically contiguous property that

may be divided by public or private right-of-way, provided the entrance

and exit between properties is at a crossroads intersection and access is by

crossing as opposed to: going along the right-of-way. Noncontiguous

properties owned by the same person but connected by a right-of-way that

he controls and that the public does not have access to is also considered

on-site property.

"Operator" means the person responsible for the operation of a site, facility

or unit. "Owner" means the person who owns a site, facility or unit or part

of a site, facility or unit, or who owns the land on which the site, facility or

unit is located.

"Potable" means generally fit for human consumption in accordance with

accepted water supply principles and practices.

[415 ILCS 5/3.340 3.65]

"Potential primary source" means any unit at a facility or site not

currently subject to a removal or remedial action which:

Is utilized for the treatment, storage, or disposal of any hazardous

or special waste not generated at the site; or

Is utilized for the disposal of municipal waste not generated at the

site, other than landscape waste and construction and demolition

debris; or

Is utilized for the landfilling, land treating, surface impounding or

piling of any hazardous or special waste that is generated on the

site or at other sites owned, controlled or operated by the same

person; or

---

Stores or accumulates at any time more than 75,000 pounds above

ground, or more than 7,500 pounds below ground, of any

hazardous substances.

[415 ILCS 5/3.345 3,5-9]

"Potential route" means abandoned and improperly plugged wells of all

kinds, drainage wells, all injection wells, including closed loop heat pump

wells, and any excavation for the discovery, development or production of

stone, sand or gravel. This term does not include closed loop heat pump

wells using USP food grade prop

ylene glycol.

[415 ILCS 5/3.350 3.58]

"Potential secondary source" means any unit at a facility or a site not

currently subject to a removal or remedial action, other than a potential

primary source, which:

Is utilized for the landfilling, land treating, or surface impounding

of waste that is generated on the site or at other sites owned,

controlled or operated by the same person, other than livestock

and landscape waste, and construction and demolition debris; or

Stores or accumulates at any time more than 25,000 but not more

than 75,000 pounds above ground, or more than 2,500 but not

more than 7,500 pounds below ground, of any hazardous

substance; or

•

Stores oraccumulates at any time more than 25,000 gallons above

ground, or more than 500 gallons below ground, of petroleum,

including crude oil or any fraction thereof which is not otherwise

specifically listed or designated as a hazardous substance; or

Stores or accumulates pesticides, fertilizers, or road oils for

purposes of commercial application or for distribution to retail

sales outlets; or

Stores or accumulates at any time more than 50,000 pounds of any

de-icing agent; or

is utilized for handling livestock waste or for treating domestic

wastewaters other than private sewage disposal systems as defined

in the Private Sewage Disposal Licensing Act

[225 ILCS 225].

[415 ILCS 5/3.355 3-60]

"Practical Quantitation Limit" or "PQL" means the lowest concentration or

level that can be reliably measured within specified limits of precision and

accuracy during routine laboratory operating conditions in accordance with

"Test Methods for Evaluating Solid Wastes, Physical/Chemical Methods",

EPA Publication No. SW-846, incorporated by reference at Section

620.125.

"Previously mined area" means land disturbed or affected by coal mining

operations prior to February 1, 1983.

---

BOARD NOTE: February 1, 1983, is the effective date of the Illinois

permanent program regulations implementing the Surface Coal Mining

Land Conservation and Reclamation Act [225 ILCS 720] as codified in 62

Ill. Adm. Code 1700 through 1850.

"Property class" means the class assigned by a tax assessor to real property

for purposes of real estate taxes.

BOARD NOTE: The property class (rural property, residential vacant land,

residential with dwelling, commercial residence, commercial business,

commercial office, or industrial) is identified on the property record card

maintained by the tax assessor in accordance with the Illinois Real

Property Appraisal Manual (February 1987), published by the Illinois

Department of Revenue, Property Tax Administration Bureau.

"Public water supply" means all mains, pipes and structures through

which water is obtained and distributed to the public, including wells and

well structures, intakes and cribs, pumping stations, treatment plants,

reservoirs, storage tanks and appurtenances, collectively or severally,

actually used or intended for use for the purpose of furnishing water for

drinking or general domestic use and which serve at least 15 service

connections or which regularly serve at least 25 persons at least 60 days

per year. A public water supply is either a "community water supply" or a

"non-community water supply".

[415 ILCS

5/3.365 3.28]

"Regulated entity" means a facility or unit regulated for groundwater

protection by any State or federal agency.

"Regulatory agency" means the Illinois Environmental Protection

Agency,

Depai

tinent of Public Health, Department of Agriculture, the Office of

Mines and Minerals in the Department of Natural Resources, and the

Office of State Fire Marshal.

"Regulated recharge area" means a compact geographic area, as

determined by the Board

pursuant to Section 17.4 of the Act,

the geology

of which renders a potable resource groundwater particularly susceptible

to contamination.

[415 ILCS

5/3.390 3.67]

"Resource groundwater" means groundwater that is presently being, or in

the future is capable of being, put to beneficial use by reason of being of

suitable quality.

[415 ILCS

5/3.430]

"Setback zone" means a geographic area, designated pursuant to this Act,

containing a potable water supply well or a potential source or potential

---

route having a continuous boundary, and within which certain

prohibitions or regulations are applicable in order to protect

groundwaters.

[415 ILCS 5/3.450 3.61]

"Site" means any location, place, tract of land and facilities, including but

not limited to, buildings and improvements used for the purposes subject

to regulation or control by the Act or regulations thereunder.

[415 ILCS

5/3.460 143]

"Spring" means a natural surface discharge of an aquifer from rock or soil.

"Threshold dose" means the lowest dose of a chemical at which a specified

measurable effect is observed and below which it is not observed.

"Treatment" means the technology, treatment techniques, or other

procedures for compliance with 35 Ill. Adm. Code, Subtitle F.

"Unit" means any device, mechanism, equipment, or area (exclusive of

land utilized only for agricultural production).

[415 ILCS 5/3.515 3.62]

"USEPA" means the United States Environmental Protection Agency.

"Wellhead Protection Area". ("WHPA") means the surface and subsurface

recharge area surrounding a community water supply well or well field,

delineated outside of any applicable setback zones (pursuant to Section

17.1 of the Act (415 ILLS 5/17.1)), and pursuant to Illinois' Wellhead

Protection Program, through which contaminants are reasonably likely to

move toward such well or well field.

"Wellhead protection program" means the wellhead protection program

for the State of Illinois, approved by USEPA under 42 USC 300h-7.

BOARD NOTE: Derived from 40 CFR 141.71(b) (2003). The wellhead

protection program includes the "groundwater protection needs

assessment" under Section 17.1 of the Act (415 ILCS 5/17.1) and 35 Ill.

Adm. Code 615-617.

(Source: Amended at Ill. Reg. , effective

)

Section 620.125

Incorporations by Reference

a)

The Board incorporates the following material by reference:

ASTM International. 100 Barr Harbor Drive, PO Box C700, West

Conshohocken, PA 19428-2959 (610) 832-9500. ASTM. American

---

19103 (215) 299 5585

"Standard Practice for Classification of Soils for Engineering

Purposes (Unified Classification System)" ASTM D2487-06

"Standard Practice for Description and Identification of Soils

:

• •?

D • • •

GPO. Superintendent of Documents, U.S. Government Printing Office,

Washington, D.C. 20401, (202) 783-3238)

Maximum Contaminant Level Goals and National Primary

_

Reg. 3526 3597 (Januapy-307-1994

Rcg. 31776 31849 (July 17, 1992).

USEPA Guidelines for Carcinogenic Risk Assessment, 51 Fed.

Reg. 33992-34003 (September 24, 1986).

Illinois Environmental Protection Agency, 1020 North Grand Avenue

East, P.O. Box 19276, Springfield, IL 62794-9276 (217) 785-4787.

"Guidance Document for Groundwater Protection Needs

Assessments," Agency, Illinois State Water Survey, and Illinois

State Geologic Survey Joint Report, January, 1995.

"The Illinois Wellhead Protection Program Pursuant to Section

1428 of the Federal Safe Drinking Water Act," Agency, # 22480,

October, 1992.

NCRP. National Council on Radiation Protection, 7910 Woodmont Ave.,

Bethesda, MD (301) 657-2652.(301) 657 6252

"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.

NTIS National Technical Information Service, 5285 Port Royal Road,

Springfield, VA 22161 (703) 605-6000(703) 487-4600.

---

"Methods for Chemical Analysis of Water and Wastes," EPA

P

.:

?

B• gee

At

?

a

?

1/..

?

I:

S1 128677

"Methods for the Determination of Organic Compounds in

Drinking Water", EPA, EMSL, EPA 600/1 88/039 (Dec. 1988),

Doc. No. PB 89 220161

"Methods for Chemical Analysis of Water and Wastes," March

1983, Doc. No. PB84-128677. EPA 600/4-79-020 (available

online at http ://nepis. ep a. gov/).

"Methods for the Determination of Inorganic Substances in

Environmental Samples," August 1993, PB94-120821 (referred to

as "USEPA Environmental Inorganic Methods"). EPA 600/R-93-

100 (available online at http://nepis.epa.gov/).

"Methods for the Determination of Metals in Environmental

Samples," June 1991, Doc. No. PB91-231498. EPA 600/4-91-010

(available online at http://nepis.epa.gov/).

"Methods for the Determination of Metals in Environmental

Samples—Supplement I," May 1994, Doc. No. PB95-125472.

EPA 600/R-94-111 (available online at http://nepis.epa.gov/).

"Methods for the Determination of Organic Compounds in

Drinking Water," Doc. No. PB91-231480. EPA/600/4-88/039

(December 1988 (revised July 1991)) (available online at

http://nepis.epa.gov/).

"Methods for the Determination of Organic Compounds in

Drinking Water, Supplement I," Doc. No. PB91-146027.

EPA/600/4-90/020 (July 1990) (available online at

http ://nepi s. ep a. gov/).

"Methods for the Determination of Organic Compounds in

Drinking Water, Supplement

Doc. No. PB92-207703.

EPA/600/R-92/129 (August 1992) (available online at

http://nepis.epa.gov/).

"Methods for the Detenaination of Organic Compounds in

Drinking Water, Supplement III," Doc. No. PB95-261616.

EPA/600/R-95/131 (August 1995) (available online at

http ://nepi s. ep a. gov/).

---

"Methods for the Determination of Organic and Inorganic

Compounds in Drinking Water: Volume I: EPA 815-R-00-014

(August 2000) (available online at http://nepis.epa.gov/).

"Prescribed Procedures for Measurement of Radioactivity in

Drinking Water," Doc. No. PB80-224744. EPA 600/4-80-032,

August 1980, (available online at http://nepis.epa.gov/).

"Procedures for Radiochemical Analysis of Nuclear Reactor

Aqueous Solutions," H.L. Krieger and S. Gold, Doc. No. PB222-

154/7BA. EPA-R4-73-014, May 1973.

"Radiochemical Analytical Procedures for Analysis of

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

053917.

"Radiochemistry Procedures Manual," Doc. No. PB-84-215581.

EPA-520/5-84-006, December 1987.

"Practical Guide for Ground-Water Sampling", EPA Publication

No. EPA/600/2-85/104 (September 1985), Doc. No. PB 86-

137304

"Test Methods for Evaluating Solid Waste, Physical/Chemical

Methods," USEPA Publication No. SW-846, as amended by

Updates I, II, FLA, LIB, III, MA, and IIIB (Third Edition, Final

I1!

1:

?

II.a

DIA (Doc. No. 955-001-00000-0,, (available online at

http://www.epa.gov/epaoswer/hazwaste/test/main.htm).

"Test Methods for Evaluating Solid Wastes, Physical/Chemical

Methods", EPA Publication No. SW 816 (Third Edition, 1986, as

amended by Revision I, Final Update I, July 1992, Doc. No. PB

89 148076

USGS. United States Geological Survey, 1961 Stout St., Denver, CO

80294 (303) 844-4169

"Techniques of Water Resources Investigations of the United

States Geological Survey, Guidelines for Collection and Field

Analysis of Ground-Water Samples for Selected Unstable

Constituents", Book I, Chapter D2 (1976)(1981).

---

j

CFR (Code of Federal Regulations). Available from the Superintendent of

Documents, U.S. Government Printing Office, Washington, D.C. 20402

(202) 783-3238.

Method Detection Limit Definition, Appendix B to Part 136, 40 CFR 136,

Appendix B (2006).

Control of Lead and Copper, Sec. 141.80 General requirements, 40 CFR

141.80 (2006).

Maximum contaminant levels for organic contaminants, Sec. 141.61, 40

CFR 141.61 (2006).

Maximum contaminant levels for inorganic contaminants, Sec. 141.62, 40

CFR 141.62 (2006).

Maximum contaminant levels for radionuclides, Sec. 141.66 (2006).

clb) This Section incorporates no later editions or amendments.

(Source: Amended at Ill. Reg.

, effective

SUBPART B: GROUNDWATER CLASSIFICATION

Section 620.201

Groundwater Designations

All groundwaters of the State are designated as:

a)

One of the following four classes of groundwater in accordance with

Sections 620.210 through 620.240:

1)

Class I: Potable Resource Groundwater;

2)

Class II: General Resource Groundwater;

3)

Class HE: Special Resource Groundwater;

4)

Class IV: Other Groundwater; ef

b)

A groundwater management zone in accordance with Section 620.250; or

c)

A groundwater management zone as defined in 35 Ill. Adm. Code 740.120

and established under 35 Ill. Adm. Code 740.530.

(Source: Amended at Ill. Reg. , effective

---

Section 620.210

Class I: Potable Resource Groundwater

Except as provided in Sections 620.230, 620.240, or 620.250, Potable Resource

Groundwater is:

a)

Groundwater located 10 feet or more below the land surface and within:

1)

The minimum setback zone of a well which serves as a potable

water supply and to the bottom of such well;

2)

Unconsolidated sand, gravel or sand and gravel which is 5 feet or

more in thickness and that contains 12 percent or less of fines (i.e.

fines which pass through a No. 200 sieve tested according to

ASTM Standard Practice D2487-06 D2

1

188 8'1, incorporated by

reference at Section 620.125);

3)

Sandstone which is 10 feet or more in thickness, or fractured

carbonate which is 15 feet or more in thickness; or

4)

Any geologic material which is capable of a:

A)

Sustained groundwater yield, from up to a 12 inch

borehole, of 150 gallons per day or more from a thickness

of 15 feet or less; or

B)

Hydraulic conductivity of 1 x 10(-4) cm/sec or greater

using one of the following test methods or its equivalent:

i)

Permeameter;

ii)

Slug test; or

iii)

Pump test.

b)

Any groundwater which is determined by the Board pursuant to petition

procedures set forth in Section 620.260, to be capable of potable use.

(Board Note: Any portion of the thickness associated with the geologic

materials as described in subsections 620.210(a)(2), (a)(3) or (a)(4) should

be designated as Class I: Potable Resource Groundwater if located 10 feet

or more below the land surface.)

(Source: Amended at Ill. Reg.

, effective

---

SUBPART C: NONDEGRADATION PROVISIONS FOR APPROPRIATE

GROUNDWATERS

Section 620.302

Applicability of Preventive Notification and Preventive Response

Activities

Preventive notification and preventive response as specified in Sections

620.305 through 620.310 applies to:

1)

Class I groundwater under Section 620.210(a)(1), (a)(2), or (a)(3)

which is monitored by the persons listed in subsection (b); or

2)

Class III groundwater which is monitored by the persons listed in

subsection (b).

b)

For purposes of subsection (a), the persons that conduct groundwater

monitoring are:

1)

An owner or operator of a regulated entity for which groundwater

quality monitoring must be performed pursuant to State or Federal

law or regulation (e.g., Section 106 and 107 of the Comprehensive

Environmental Response, Compensation and Liability Act (42

U.S.C. 9601, et seq.); Sections 3004 and 3008 of the Resource

Conservation and Recovery Act (42 U.S.C. 6901, et seq.);

Sections 4(q), 4(v), 12(g), 21(d), 21(f), 22.2(f), 22.2(m) and 22.18

of the Act; 35 Ill. Adm. Code 724, 725, 730, 731, 750, 811 and

814);

2)

An owner or operator of a public water supply well who conducts

groundwater quality monitoring;

3)

A state agency which is authorized to conduct, or is the recipient

of, groundwater quality monitoring data (e.g., Illinois

Environmental Protection Agency, Department of Public Health,

Department of Conservation, Department of Mines and Minerals,

Department of Agriculture, Office of State Fire Marshal or

Department of Energy and Natural Resources); or

An owner or operator of a facility that conducts groundwater

quality monitoring pursuant to State or federal judicial or

administrative order.

---

c) If a contaminant exceeds a standard set forth in Section 620.410 or Section

620.430, the appropriate remedy is corrective action and Sections 620.305

and 620.310 do not apply.

(Source: Amended at Ill. Reg.

, effective

Section 620.310

Preventive Response Activities

a)

The following preventive assessment must be undertaken:

1)

If a preventive notification under Section 620.305(c) is provided by

a community water supply:

A)

The Agency shall notify the owner or operator of any

identified potential primary source, potential secondary

source, potential route, or community water supply well

that is located within 2,500 feet of the wellhead.

B)

The owner or operator notified under subsection (a)(1)(A)

shall, within 30 days after the date of issuance of such

notice, sample each water well or monitoring well for the

contaminant identified in the notice if the contaminant or

material containing such contaminant is or has been stored,

disposed of, or otherwise handled at the site. If a

contaminant identified under Section 620.305(a) is

detected, then the well must be resampled within 30 days of

the date on which the first sample analyses are received. If

a contaminant identified under Section 620.305(a) is

detected by the resampling, preventive notification must be

given as set forth in Section 620.305.

C)

If the Agency receives analytical results under subsection

(a)(1)(B) that show a contaminant identified under Section

620.305(a) has been detected, the Agency shall:

i)

Conduct a well site survey pursuant to 415 ILCS

5/17.1(d), if such a survey has not been previously

conducted within the last 5 years; and

ii)

Identify those sites or activities that represent a

hazard to the continued availability of groundwaters

for public use unless a groundwater protection

needs assessment has been prepared pursuant to 415

ILCS 5/17.1(d).

---

2)

If a preventive notification is provided under Section 620.305(c) by

a non-community water supply or for multiple private water supply

wells, the Department of Public Health shall conduct a sanitary

survey within 1,000 feet of the wellhead of a non-community water

supply or within 500 feet of the wellheads for multiple private

water supply wells.

3)

If a preventive notification under Section 620.305(b) is provided

by the owner or operator of a regulated entity and the applicable

standard in Subpart D has not been exceeded:

A)

The appropriate regulatory agency shall determine if any of

the following occurs for Class I: Potable Resource

Groundwater:

i)

The levels set forth below are exceeded or are

changed for pH:

Constituent

Criteria (mg/L)

Para-Dichlorob enzene

0.005

Ortho-Dichlorobenzene

0.01

Ethylbenzene

0.03

Methyl Tertiary-Butyl Ether

0.02

Phenols

0.001

Styrene

0.01

Toluene

0.04

Xylenes

0.02

ii)

A statistically significant increase occurs above

background (as determined pursuant to other

regulatory procedures (e.g., 35 Ill. Adm. Code 616,

724, 725 or 811)) for arsenic, beryllium, cadmium,

chromium, cyanide, lead, mercury, molybdenum, ef

thallium, or vanadium (except due to natural

causes); or for acenaphthene, acetone, aldicarb,

anthracene, atrazine, benzoic acid, carbon disulfide,

carbofuran, dalapon, 2-butanone (MEK), dicamba,

dichlorodifluoromethane, 1,1-dichloroethane,

diethylphthalate, di-n-butyl phthalate, di-n-

octylphthalate, dinoseb, endrin, endothall,

fluoranthene, fluorine, hexachlorocyclopentadiene,

isopropylbenzene (Cumene), lindane (gamma-

hexachloro cyclohexane), 2,4-D, 1, 1 -

dichloroethylene, cis - 1, 2 - dichloroethylene, trans-

---

1,2-dichloroethylene, MCPP (Mecoprop), 2-

methylnaphthalene, methoxychlor, 2-methylphenol,

monochlorobenzene, naphthalene, picloram, pyrene,

simazine, 2,4,5-TP (Silvex), 1,2,4-trichloro-

benzene, 1,1,2-trichloroethane, and 1, 1, 1 –

trichloroethane, and trichlorofluoromethane.

iii)

For a chemical constituent of gasoline, diesel fuel,

or heating fuel, the constituent exceeds the

following:

Constituent

Criterion (mg/L)

BETX

0.095

iv)

For pH, a statistically significant change occurs

from background.

BOARD NOTE: Constituents that are carcinogens have not been

listed in subsection (a)(3)(A) because the standard is set at the PQL

and any exceedence thereof is a violation subject to corrective

action.

B)

The appropriate agency shall determine if, for Class III:

Special Resource Groundwater, the levels as determined by

the Board are exceeded.

The appropriate regulatory agency shall consider whether

the owner or operator reasonably demonstrates that:

i)

The contamination is a result of contaminants

remaining in groundwater from a prior release for

which appropriate action was taken in accordance

with laws and regulations in existence at the time of

the release;

ii)

The source of contamination is not due to the on-

site release of contaminants; or

iii)

The detection resulted from error in sampling,

analysis, or evaluation.

D)

The appropriate regulatory agency shall consider actions

necessary to minimize the degree and extent of

contamination.

---

b)

The appropriate regulatory agency shall determine whether a preventive

response must be undertaken based on relevant factors including, but not

limited to, the considerations in subsection (a)(3).

c)

After completion of preventive response pursuant to authority of an

appropriate regulatory agency, the concentration of a contaminant listed in

subsection (a)(3)(A) in groundwater may exceed 50 percent of the

applicable numerical standard in Subpart D only if the following

conditions are met:

1)

The exceedence has been minimized to the extent practicable;

2)

Beneficial use, as appropriate for the class of groundwater, has

been assured; and

3)

Any threat to public health or the environment has been

minimized.

d)

Nothing in this Section shall in any way limit the authority of the State or

of the United States to require or perform any corrective action process.

(Source: Amended at Ill. Reg. , effective

)

SUBPART D: GROUNDWATER QUALITY STANDARDS

Section 620.410

Groundwater Quality Standards for Class I: Potable Resource

Groundwater

a)

Inorganic Chemical Constituents

Except due to natural causes or as provided in Section 620.450,

concentrations of the following chemical constituents must not be

exceeded in Class I groundwater:

Constituent

Units

Standard

Antimony mg/L 0.006

Arsenic

mg/L 0.0100,05

Barium

mg/L 2.0

Beryllium

mg/L 0.004

Boron mg/L

2.0

Cadmium

mg/L

0.005

Chloride

mg/L

200.0

Chromium

mg/L

0.1

Cobalt mg/L

1.0

---

Copper

mg/L

0.65

Cyanide mg/L

0.2

Fluoride

mg/L 4.0

Iron mg/L

5.0

Lead

mg/L

0.0075

Manganese mg/L 0.15

Mercury mg/L

0.002

Molybdenum

mg/L 0.035

Nickel mg/L 0.1

Nitrate as N

mg/L 10.0

Perchlorate

mg/L

0.0049

Radium-226

pCi/i 20.0

Radium-228

pCi/1 20.0

Selenium mg/L 0.05

Silver

mg/L 0.05

Sulfate

mg/L 400.0

Thallium mg/L

0.002

Total Dissolved

Solids (TDS)

mg/L

1,200

Vanadium

mg/L

0.049

Zinc

mg/L

5,0

b)

Organic Chemical Constituents

Except due to natural causes or as provided in Section 620.450 or

subsection I, concentrations of the following organic chemical constituents

shall not be exceeded in Class I groundwater:

Constituent

Standard (mg/L)

Acenaphthene

0.42

Acetone

6.3

Alachlor*

0.002

Aldicarb

0.003

Anthracene

0.0434

Atrazine

0.003

Benzene*

0.005

Benzo(a)anthracene*

0.00013

Benzo(b)fluoranthene*

0.00018

Benzo(k)fluoranthene*

0.0008

Benzo(a)pyrene*

0.0002

Benzoic acid

28.0

2-Butanone (MEK)

4.2

Carbofuran

0.04

Carbon disulfide

0.7

Carbon Tetrachloride*

0.005

---

Chlordane*

0.002

Chloroform*

0.0002

Chrysene*

0.0016

Dalapon

0.2

Dibenzo(a,h)anthracene

0.0003

Dicamba

0.21

Dichlorodifluoromethane

1.4

1,1-Dichloroethane

0.7

Dichloromethane*

0.005

Di(2-ethylhexyl)phthalate*

0.006

Diethyl phthalate

5.6

Di-n-butyl phthalate

0.7

Di-n-octyl phthalate

0.02

Dinoseb

0.007

Endothall

0.1

Endrin

0.002

Ethylene Dibromide*

0.00005

Fluoranthene

0.206

Fluorene

0.28

Heptachlor*

0.0004

Heptachlor Epoxide*

0.0002

Hexachlorocyclopentadiene

0.05

Indeno(1,2,3-cd)pyrene*

0.00043

Isopropylbenzene (Cumene)

007

Lindane (Gamma-

0.0002

Hexachlorocyclohexane)

2,4-D

0.07

ortho-Dichlorobenzene

0.6

para-Dichlorobenzene

0.075

1,2-Dibromo-3-Chloropropane*

0.0002

1,2-Dichloroethane*

0.005

1,1-Dichloroethylene

0.007

cis-1,2-Dichloroethylene

0.07

trans-1,2-Dichloroethylene

0.1

1,2-Dichloropropane*

0.005

Ethylbenzene

0.7

MCPP (Mecoprop)

0.007

Methoxychlor

0.04

2-Methylnaphthalene

0.0028

2-Methylphenol

0.35

Methyl Tertiary-Butyl Ether

0.07

Monochlorobenzene

0.1

Naphthalene

0.14

P-Dioxane*

0.005

Pentachlorophenol*

0.001

---

Phenols

0.1

Picloram

0.5

Pyrene

0.135

Polychlorinated

0.0005

Biphenyls(PCBs)(as decachloro-

biphenyl)*

alpha-BHC*

0.00011

Simazine

0.004

Styrene

0.1

2,4,5-TP (Silvex)

0.05

Tetrachloroethylene*

0.005

Toluene

1.0

Toxaphene*

0.003

1,1,1-Trichloroethane

0.2

1,1,2-Trichloroethane

0.005

1,2,4-Trichlorobenzene

0.07

Trichloroethylene*

0.005

Trichlorofluoromethane

2.1

Vinyl Chloride*

0.002

Xylenes

10.0

*Denotes a carcinogen.

Explosive Constituents

Concentrations of the following explosive constituents must not exceed

the Class I groundwater standard:

Constituent

Standard (mg/L)

1,3-Dinitrobenzene

0.0007

2,4-Dinitrotoluene*

0.00002

2,6-Dinitrotoluene*

0.00031

HMX

1.4

Nitrobenzene

0.0035

RDX

0.084

1,3,5-Trinitrobenzene

0.84

2,4,6-Trinitrotoluene

0.014

*Denotes a carcinogen.

ci)e) Complex Organic Chemical Mixtures

Concentrations of the following chemical constituents of gasoline, diesel fuel, or

heating fuel must not be exceeded in Class I groundwater:

Constituent

Standard (mg/L)

---

Benzene*

0.005

BETX

11.705

*Denotes a carcinogen.

C/

€1

-) PH

Except due to natural causes, a pH range of 6.5 - 9.0 units must not be

exceeded in Class I groundwater.

De) Beta Particle and Photon Radioactivity

1)

Except due to natural causes, the average annual concentration of

beta particle and photon radioactivity from man-made

radionuclides shall not exceed a dose equivalent to the total body

organ greater than 4 mrem/year in Class I groundwater. If two or

more radionuclides are present, the sum of their dose equivalent to

the total body, or to any internal organ shall not exceed 4

mrem/year in Class I groundwater except due to natural causes.

2)

Except for the radionuclides listed in subsection (e)(3), the

concentration of man-made radionuclides causing 4 mrem total

body or organ dose equivalent must be calculated on the basis of a

2 liter per day drinking water intake using the 168-hour data in

accordance with the procedure set forth in NCRP Report Number

22, incorporated by reference at in Section 620.125(a).

3)

Except due to natural causes, the average annual concentration

assumed to produce a total body or organ dose of 4 mrem/year of

the following chemical constituents shall not be exceeded in Class

I groundwater:

Critical

Standard

Constituent

Organ

(p CUL)

Tritium

Total body

20,000.0

Strontium-90

Bone marrow

8.0

(Source: Amended at Ill. Reg. , effective

Section 620.420

Groundwater Quality Standards for Class General Resource

Groundwater

Inorganic Chemical Constituents

---

1)

Except due to natural causes or as provided in Section 620.450 or

subsection (a)(3) or (d) of this Section, concentrations of the

following chemical constituents must not be exceeded in Class II

groundwater:

Constituent

Standard

(mg/L)

Antimony

0.024

Arsenic

0.0100.2

Barium

2.0

Beryllium

0.5

Cadmium

0.05

Chromium

1.0

Cobalt

1.0

Cyanide

0.6

Fluoride

4.0

Lead

0.1

Mercury

0.01

Molybdenum

0.035

Nitrate as N

100.0

Perchlorate

0.0049

Thallium

0.02

Vanadium

0.049

2)

Except as provided in Section 620.450 or subsection (a)(3) or (d)

of this Section, concentrations of the following chemical

constituents must not be exceeded in Class II groundwater:

Constituent

Standard

(mg/L)

Boron

2.0

Chloride

200.0

Copper

0.65

Iron

5.0

Manganese

10.0

Nickel

2.0

Selenium

0.05

Total Dissolved Solids

(TDS)

1,200.0

Sulfate

400.0

Zinc

10.0

---

The standard for any inorganic chemical constituent listed in

subsection (a)(2) of this Section, for barium, or for pH does not

apply to groundwater within fill material or within the upper 10

feet of parent material under such fill material on a site not within

the rural property class for which:

A)

Prior to November 25, 1991, surficial characteristics have

been altered by the placement of such fill material so as to

impact the concentration of the parameters listed in

subsection (a)(3) of this Section, and any on-site

groundwater monitoring of such parameters is available for

review by the Agency.

B)

On November 25, 1991, surficial characteristics are in the

process of being altered by the placement of such fill

material, that proceeds in a reasonably continuous manner

to completion, so as to impact the concentration of the

parameters listed in subsection (a)(3) of this Section, and

any on-site groundwater monitoring of such parameters is

available for review by the Agency.

4)

For purposes of subsection (a)(3) of this Section, the term "fill

material" means clean earthen materials, slag, ash, clean

demolition debris, or other similar materials.

b)

Organic Chemical Constituents

1)

Except due to natural causes or as provided in Section 620.450 or

subsection (b)(2) or (d) of this Section, concentrations of the

following organic chemical constituents must not be exceeded in

Class II groundwater:

Constituent

Standard

(mg/L)

Acenaphthene

2.1

Acetone

6.3

Alachlor*

0.010

Aldicarb

0.015

Anthracene

0.0434

Atrazine

0.015

Benzene*

0.025

Benzo(a)anthracene*

0.00065

Benzo(b)fluoranthene*

0.0009

Benzo(k)fluoranthene*

0.0008

---

Benzo(a)pyrene*

0.00162

0.002

Benzoic acid

28.0

2-Butanone (MEK)

4.2

Carbon disulfide

3.5

Carbofuran

0.2

Carbon Tetrachloride*

0.025

Chlordane*

0.01

Chloroform*

0.001

Chrysene*

0.0016

Dalapon

2.0

Dibenzo(a,h)anthracene

0.0015

Dicamba

0.21

Dichlorodifluoromethane

7.0

1,1-Dichloroethane

3.5

Dichloromethane*

0.05

Di(2-ethylhexyl)phthalate*

0.06

Diethyl phthalate

5.6

Di-n-butyl phthalate

3.5

Di-n-octyl phthalate

0M2

Dinoseb

0.07

Endothall

0.1

Endrin

0.01

Ethylene Dibromide*

0.0005

Fluoranthene

0.206

Fluorene

1.4

Heptachlor*

0.002

Heptachlor Epoxide*

0.001

Hexachlorocyclopentadiene

0.5

Indeno(1,2,3-cd)pyrene*

0.00043

Isopropylbenzene (cumenel

3.5

Lindane (Gamma-Hexachloro

cyclohexane)

0.001

2,4-D

0.35

Ortho-Dichlorobenzene

1.5

Para-Dichlorobenzene

0.375

1,2-Dibromo-3-Chloropropane*

0.002

1,2-Dichloroethane*

0.025

1,1-Dichloroethylene

0.035

cis-1,2-Dichloroethylene

0.2

Trans-1,2-Dichloroethylene

0.5

1,2-Dichloropropane*

0.025

Ethylbenzene

1.0

MCPP (Mecoprop)

0.035

Methoxychlor

0.045 0.2

---

2-Methylnaphthalene

0.14

2-Methylphenol

0.35

Methyl Tertiary-Butyl Ether (MTBE)

0.07

Monochlorobenzene

0.5

Naphthalene

0.22

P-Dioxane*

0.005

Pentachlorophenol*

0.005

Phenols

0.1

Picloram

5.0

Pyrene

0.135

Polychlorinated Biphenyls (PCBs)

(as decachloro-biphenyl)* 0.0025

alpha-BHC

0.00055

Simazine

0.04

Styrene

0.5

2,4,5-TP

0.25

Tetrachloroethylene*

0.025

Toluene

2.5

Toxaphene*

0.015

1,1,1-Trichloroethane

1.0

1,2,4-Trichlorobenzene

0.7

1,1,2-Trichloroethane

0.05

Trichloroethylene*

0.025

Trichlorofluoromethane

10.5

Vinyl Chloride*

0.01

Xylenes

10.0

*Denotes a carcinogen.

2)

The standards for pesticide chemical constituents listed in

subsection (b)(1) of this Section do not apply to groundwater

within 10 feet of the land surface, provided that the concentrations

of such constituents result from the application of pesticides in a

manner consistent with the requirements of the Federal Insecticide,

Fungicide and Rodenticide Act (7 USC 136 et seq.) and the

Illinois Pesticide Act [415 ILCS 60].

Explosive Constituents

Concentrations of the following explosive constituents must not exceed

the Class II groundwater standard:

Constituent

Standard (mg/L)

1,3-Dinitrobenzene

0.0007

2,4-Dinitrotoluene*

0.00002

---

2,6-Dinitrotoluene*

0.00031

HMX

L4

Nitrobenzene

0.0035

RDX

0.084

1,3,5-Trinitrobenzene

0.84

2,4,6-Trinitrotoluene

0.014

*Denotes a carcinogen.

clle) Complex Organic Chemical Mixtures

Concentrations of the following organic chemical constituents of gasoline,

diesel fuel, or heating fuel must not be exceeded in Class II groundwater:

Constituent

Standard

(mg/L)

Benzene*

0.025

BETX

13.525

*Denotes a carcinogen.

/ 4Et)

PH

Except due to natural causes, a pH range of 6.5 - 9.0 units must not be

exceeded in Class II groundwater that is within 5 feet of the land surface.

(Source: Amended at Ill. Reg. , effective

)

Section 620.440

Groundwater Quality Standards for Class IV: Other Groundwater

a)

Except as provided in subsections (b) or (c), Class IV: Other Groundwater

standards are equal to the existing concentrations of constituents in

groundwater.

b)

For groundwater within a zone of attenuation as provided in 35 Ill. Adm.

Code 811 and 814, the standards specified in Section 620.420 must not be

exceeded, except for concentrations of contaminants within leachate

released from a permitted unit.

For groundwater within a previously mined area, the standards set forth in

Section 620.420 must not be exceeded, except for concentrations of TDS,

chloride, iron, manganese, sulfates, er pH, 1,3-Dinitrobenzene, 2,4-

Dinitrotoluene, 2,6-Dinitrotoluene, HMX, Nitrobenzene, RDX, 1,3,5-

Trinitrobenzene, or 2,4,6-Trinitrotoluene,. For concentrations of TDS,

---

chloride, iron, manganese, sulfates, of pH, 1,3-Dinitrobenzene, 2,4-

Dinitrotoluene, 2,6-Dinitrotoluene, HMX, Nitrobenzene, RDX, 1,3,5-

Trinitrobenzene, or 2,4,6-Trinitrotoluene, the standards are the existing

concentrations.

(Source: Amended at Ill. Reg. , effective

)

Section 620.450

Alternative Groundwater Quality Standards

a)

Groundwater Quality Restoration Standards

1)

Any chemical constituent in groundwater within a groundwater

management zone is subject to this Section.

Except as provided in subsections (a)(3) or (a)(4) below, the

standards as specified in Sections 620.410, 620.420, 620.430, and

620.440 apply to any chemical constituent in groundwater within a

groundwater management zone.

3)

Prior to completion of a corrective action described in Section

620.250(a), the standards as specified in Sections 620.410,

620.420, 620.430, and 620.440 are not applicable to such released

chemical constituent, provided that the initiated action proceeds in

a timely and appropriate manner.

4)

After completion of a corrective action as described in Section

620.250(a), the standard for such released chemical constituent is:

A)

The standard as set forth in Section 620.410, 620.420,

620.430, or 620.440, if the concentration as determined by

groundwater monitoring of such constituent is less than or

equal to the standard for the appropriate class set forth in

those sections; or

B)

The concentration as determined by groundwater

monitoring, if such concentration exceeds the standard for

the appropriate class set forth in Section 620.410, 620.420,

620.430, or 620.440 for such constituent, and:

i)

To the extent practicable, the exceedence has been

minimized and beneficial use, as appropriate for the

class of groundwater, has been returned; and

ii)

Any threat to public health or the environment has

been minimized.

---

5)

The Agency shall develop and maintain a listing of concentrations

derived pursuant to subsection (a)(4)(B) above. This list shall be

made available to the public and be updated periodically, but no

less frequently than semi-annually. This listing shall be published

in the Environmental Register.

b)

Coal Reclamation Groundwater Quality Standards

1)

Any inorganic chemical constituent or pH in groundwater, within

an underground coal mine, or within the cumulative impact area of

groundwater for which the hydrologic balance has been disturbed

from a permitted coal mine area pursuant to the Surface Coal

Mining Land Conservation and Reclamation Act [225 ILCS 720]

and 62 Ill. Adm. Code 1700 through 1850, is subject to this

Section.

2)

Prior to completion of reclamation at a coal mine, the standards as

specified in Sections 620.410(a) and (d), 620.420(a) and (d),

620.430 and 620.440 are not applicable to inorganic constituents

and pH.

3)

After completion of reclamation at a coal mine, the standards as

specified in Sections 620.410(a) and (d), 620.420(a), 620.430, and

620.440 are applicable to inorganic constituents and pH, except:

A)

The concentration of total dissolved solids (TDS) must not

exceed:

i)

The post-reclamation concentration or 3000 mg/L,

whichever is less, for groundwater within the

permitted area; or

ii)

The post-reclamation concentration of TDS must

not exceed the post-reclamation concentration or

5000 mg/L, whichever is less, for groundwater in

underground coal mines and in permitted areas

reclaimed after surface coal mining if the Illinois

Department of Mines and Minerals and the Agency

have determined that no significant resource

groundwater existed prior to mining (62 El. Adm.

Code 1780.21(f) and (g)); and

---

B)

For chloride, iron, manganese and sulfate, the post-

reclamation concentration within the permitted area must

not be exceeded.

C)

For pH, the post-reclamation concentration within the

permitted area must not be exceeded within Class I: Potable

Resource Groundwater as specified in Section

620.210(a)(4).

al

For 1,3-Dinitrobenzene, 2,4-Dinitrotoluene, 2,6-

Dinitrotoluene, HMX, Nitrobenzene, RDX, 1,3,5-

Trinitrobenzene, and 2,4,6-Trinitrotoluene, the post-

reclamation concentration within the permitted area must

not be exceeded.

4)

A refuse disposal area (not contained within the area from which

overburden has been removed) is subject to the inorganic chemical

constituent and pH requirements of:

A)

35 Ill. Adm. Code 302.Subparts B and C, except due to

natural causes, for such area that was placed into operation

after February 1, 1983, and before the effective date of this

Part, provided that the groundwater is a present or a

potential source of water for public or food processing;

B)

Section 620.440(c) for such area that was placed into

operation prior to February 1, 1983, and has remained in

continuous operation since that date; or

C)

Subpart D of this Part for such area that is placed into

operation on or after the effective date of this Part.

5)

For a refuse disposal area (not contained within the area from

which overburden has been removed) that-was placed into

operation prior to February 1, 1983, and is modified after that date

to include additional area, this Section applies to the area that

meets the requirements of subsection (b)(4)(C) and the following

applies to the additional area: .

A)

35 Ill. Adm. Code 302.Subparts B and C, except due to

natural causes, for such additional refuse disposal area that

was placed into operation after February 1, 1983, and

before the effective date of this Part, provided that the

groundwater is a present or a potential source of water for

public or food processing; and

---

B)

Subpart D for such additional area that was placed into

operation on or after the effective date of this Part.

6)

A coal preparation plant (not located in an area from which

overburden has been removed) which contains slurry material,

sludge or other precipitated process material, is subject to the

inorganic chemical constituent and pH requirements of:

A)

35 Ill. Adm. Code 302.Subparts B and C, except due to

natural causes, for such plant that was placed into operation

after February 1, 1983, and before the effective date of this

Part, provided that the groundwater is a present or a

potential source of water for public or food processing;

B)

Section 620.440(c) for such plant that was placed into

operation prior to February 1, 1983, and has remained in

continuous operation since that date; or

C)

Subpart D for such plant that is placed into operation on or

after the effective date of this Part.

7)

For a coal preparation plant (not located in an area from which

overburden has been removed) which contains slurry material,

sludge or other precipitated process material, that was placed into

operation prior to February 1, 1983, and is modified after that date

to include additional area, this Section applies to the area that

meets the requirements of subsection (b)(6)(C) and the following

applies to the additional area:

A)

35 Ill. Adm. Code 302.Subparts B and C, except due to

natural causes, for such additional area that was placed into

operation after February 1, 1983, and before the effective

date of this Part, provided that the groundwater is a present

or a potential source of water for public or food processing;

and

B)

Subpart D for such additional area that was placed into

operation on or after the effective date of this Part.

c)

Groundwater Quality Standards for Certain Groundwater Subject to a No

Further Remediation Letter under Part 740. While a No Further

Remediation Letter is in effect for a region formerly encompassed by a

groundwater management zone established under 35 Ill. Adm. 740.530,

the groundwater quality standards for "contaminants of concern", as

---

defined in 35 Ill. Adm. Code 740.120, within such area shall be the

groundwater objectives achieved as documented in the approved Remedial

Action Completion Report.

(Source: Amended at Ill. Reg. , effective

SUBPART E: GROUNDWATER MONITORING AND ANALYTICAL

PROCEDURES

Section 620.505

Compliance Determination

a)

Compliance with standards at a site is to be determined as follows:

1)

For a structure (e.g., buildings), at the closest practical distance

beyond the outermost edge for the structure.

2)

For groundwater that underlies a potential primary or secondary

source, the outermost edge as specified in Section 620.240(e)(1).

3)

For groundwater that underlies a coal mine refuse disposal area, a

coal combustion waste disposal area, or an impoundment that

contains sludge, slurry, or precipitated process material at a coal

preparation plant, the outermost edge as specified in Section

620.240(f)(1) or location of monitoring wells in existence as of the

effective date of this Part on a permitted site.

4)

For a groundwater management zone, as specified in a corrective

action process.

5)

For groundwater any points where monitoring is conducted using a

water well, or a monitoring well that meets one of the following

conditions:

A)

For a potable water supply well if geologic log(s) exist for

this well or geologic logs in the immediate 1,000-foot area

of this well are representative of the hydrogeologic

materials encountered by this well as determined by a

licensed professional geologist or a licensed professional

engineer or a WHPA has been delineated outside of an

applicable setback zone of a community water well or well

field in accordance with a "Guidance Document for

Conducting Groundwater Protection Needs Assessments,"

incorporated by reference at Section 620.125, and "Illinois

Approved WHPP," incorporated by reference at Section

620.125.

---

B)

For a potable water supply well other than a community

water supply well, a construction report has been filed with

the Department of Public Health for such potable well, or

such well has been located and constructed (or

reconstructed) to meet the Illinois Water Well Construction

Code [415 ILCS 30] and 77 111. Adm. Code 920.

C)

For a potable water supply well that was constructed prior

to August 20, 1965, the enactment of the Illinois Water

Well Construction Code [415 ILCS 30], and meets all of

the following criteria:

i)

Construction must be done in a manner that will

enable the collection of groundwater samples that

represent in situ groundwater conditions;

ii)

Casings and screens must be made from durable

material resistant to expected chemical or physical

degradation that do not interfere with the quality of

groundwater samples being collected; and

iii)

The annular space opposite the screened section of

the well (i.e., the space between the bore hole and

well screen) must be filled with gravel or sand if

necessary to collect groundwater samples. The

annular space above and below the well screen must

be sealed to prevent migration of water from

adjacent formations and the surface to the sampled

depth.

D)

For a community water supply well, such well has been

permitted by the Agency, or has been constructed in

accordance with 35 Ill. Adm. Code 602.115.

E)

For a water well other than a potable water supply well

(e.g., a livestock watering well or an irrigation well), a

construction report has been filed with the Department of

Public Health or the the Office of Mines and Minerals in

the Department of Natural Resources for such well, or such

well has been located and constructed (or reconstructed) to

meet the Illinois Water Well Construction Code [415 ILCS

30] and 35 Ill. Adm. Code 920.

---

F)

For a monitoring well, such well meets the following

requirements:

i)

Construction must be done in a manner that will

enable the collection of groundwater samples;

ii)

Casings and screens must be made from durable

material resistant to expected chemical or physical

degradation that do not interfere with the quality of

groundwater samples being collected; and

iii)

The annular space opposite the screened section of

the well (i.e., the space between the bore hole and

well screen) must be filled with gravel or sand if

necessary to collect groundwater samples. The

annular space above and below the well screen must

be sealed to prevent migration of water from

adjacent formations and the surface to the sampled

depth.

6)

Monitoring shall not be conducted for compliance determinations

pursuant to subsection a) of this Section:

A)

For a water well:

i)

Less than 15 feet in total depth from the land surface,

ii)

bored or dug,

iii)

constructed of permeable materials (e.g., cement,

tile, stone or brick), and

iv)

36 inches or more in diameter.

B)

For a water well with water quality problems due to

damaged well construction materials or poorly-designed

well construction;

C)

For a water well in a basement or pit; or

D)

For a water well water from a holding tank.

b)

For a spring, compliance with this Subpart shall be detenuined at the point

of emergence.

---

(Source: Amended at Ill. Reg. , effective

Section 620.510

Monitoring and Analytical Requirements

a)

Representative Samples

A representative sample shall be taken from locations as specified in

Section 620.505.

Sampling and Analytical Procedures

1) Samples must be collected in accordance with the procedures set

forth in the documents pertaining to groundwater monitoring and

analysis "Methods for Chemical Analysis of Water and Wastes,"

"Methods for the Determination of Inorganic Substances in

Environmental Samples," "Methods for the Determination of

Metals in Environmental Samples," "Methods for the

Determination of Organic Compounds in Drinking Water,"

"Methods for the Determination or Organic Compounds in

Drinking Water, Supplement I," "Methods for the Determination of

Organic Compounds in Drinking Water, Supplement II," "Methods

for the Determination of Organic Compounds in Drinking Water,

Supplement III," " Methods for the Determination of Organic and

Inorganic Compounds in Drinking Water," "Prescribed Procedures

for Measurement of Radioactivity in Drinking Water," "Procedures

for Radiochemical Analysis of Nuclear Reactor Aqueous

Solutions," "Radiochemical Analytical Procedures for Analysis of

Environmental Samples," "Radiochemistry Procedures Manual,"

"Practical Guide for Ground Water Sampling," "Test Methods for

Evaluating Solid Wastes, Physical/Chemical Methods" (SW-846),

40 CFR 136, Appendix B, 40 CFR 141.80, 40 CFR 141.61, and 40

CFR 141.62, "Techniques of Water Resources Investigations of the

United States Geological Survey, Guidelines for Collection and

Field Analysis of Ground Water Samples for Selected Unstable

Constituents," incorporated by reference at Section 620.125.

"Methods for Chemical Analysis of Water and Wastes," "Methods

for the Determination of Organic Compounds in Drinking Water,"

"Practical Guide for Ground-Water Sampling," "Test Methods for

Reg. 31776 31849, "Techniques of Water Resources

Investigations of the United States Geological Survey, Guidelines

for Collection and Field Analysis of Ground-Water Samples for

Selected Unstable Constituents," incorporated by reference at

Section 620.125 or other procedures adopted by the appropriate

regulatory agency.

---

2)

Groundwater elevation in a groundwater monitoring well must be

determined and recorded when necessary to deteimine the gradient.

3)

The analytical methodology used for the analysis of constituents in

Subparts C and D must be consistent with both of the following:

A)

The methodology must have a PQL at or below the

preventive response levels of Subpart C or groundwater

standard set forth in Subpart D, whichever is applicable;

and

B)

"Methods for Chemical Analysis of Water and Wastes,"

Methods for the Detemiination of Inorganic Substances in

Environmental Samples," Methods for the Determination of

Metals in Environmental Samples," "Methods for the

Determination of Organic Compounds in Drinking Water,"

"Methods for the Determination of Organic Compounds in

Drinking Water, Supplement I," "Methods for the

Determination of Organic Compounds in Drinking Water,

Supplement II," "Methods for the Determination of Organic

Compounds in Drinking Water, Supplement HI," "Methods

for the Determination of Organic and Inorganic Compounds

in Drinking Water," "Prescribed Procedures for

Measurement of Radioactivity in Drinking Water,"

"Procedures for Radiochemical Analysis of Nuclear

Reactor Aqueous Solutions," "Radiochemical Analytical

Procedures for Analysis of Environmental Samples,"

"Radiochemistry Procedures Manual," "Practical Guide for

Ground Water Sampling," "Test Methods for Evaluating

Solid Wastes, Physical/Chemical Methods" (SW-846), 40

CFR 136, Appendix B, 40 CFR 141.80, 40 CFR 141.61,

and 40 CFR 141.62, "Techniques of Water Resources

Investigations of the United States Geological Survey,

Guidelines for Collection and Field Analysis of Ground

Water Samples for Selected Unstable Constituents,"

incorporated by reference at Section 620.125. The

methodology must be consistent with methodologies

contained in "Methods for Chemical Analysis of Water and

II

?

II

Compounds in Drinking Water", "Practical Guide for

Ground-Water Sampling", "Test Methods for Evaluating

:

•

"Techniques of Water Resources Investigations of the

United States Geological Survey, Guidelines for Collection

---

and Field Analysis of Ground-Water Samples for Selected

Unstable Constituents", incorporated by reference at

Section 620.125.

c)

Reporting Requirements

At a minimum, groundwater monitoring analytical results must include

information, procedures and techniques for:

1)

Sample collection (including but not limited to name of sample

collector, time and date of the sample, method of collection, and

identification of the monitoring location);

2)

Sample preservation and shipment (including but not limited to

field quality control);

3)

Analytical procedures (including but not limited to the method

detection limits and the PQLs); and

4)

Chain of custody control.

Source: Amended at Ill. Reg.

, effective

SUBPART F: HEALTH ADVISORIES

Section 620.605

Issuance of a Health Advisory

a)

The Agency shall issue a Health Advisory for a chemical substance if all

of the following conditions are met:

1)

A community water supply well is sampled and a substance is

detected and confirmed by resampling;

2)

There is no standard under Section 620.410 for such chemical

substance; and

The chemical substance is toxic or harmful to human health

according to the procedures of Appendix A, B, or C.

b)

The Health Advisory must contain a general description of the

characteristics of the chemical substance, the potential adverse health

effects, and a guidance level to be determined as follows:

1)

Except as specified in Section 620.605(c), if If disease or

functional impairment is caused due to a physiological mechanism

for where there is a threshold dose below which no damage occurs,

---

the guidance level for any such substance shall be the Maximum

Contaminant Level Goal ("MCLG"), adopted by USEPA for such

substance, 40 CFR 136, Appendix B, 40 CFR 141.80, 40 CFR

141.61, and 40 CFR 141.62 56 Fed. Reg. 26160 26564, 56 Fed.

Reg. 3526 3597, and 57 Fed. Reg. 31776 31849, incorporated by

reference at Section 620.125. If there is no MCLG for the

substance, the guidance level is the Human Threshold Toxicant

Advisory Concentration for such substance as determined in

accordance with Appendix A, unless the concentration for such

substance is less than the lowest appropriate PQL specified in

"Test Methods for Evaluating Solid Wastes, Physical/Chemical

Methods", EPA Publication No. SW-846 (SW-846), incorporated

by reference at Section 620.125 for the substance. If the

concentration for such substance is less than the lowest appropriate

PQL for the substance specified in SW-846, incorporated by

reference at Section 620.125, the guidance level is the lowest

appropriate PQL.

2)

Except as specified in Section 620.605(c), if If the chemical

substance is a carcinogen, the guidance level for any such chemical

substance is the one-in-one-million cancer risk concentration,

unless the concentration for such substance is less than the lowest

appropriate PQL specified in "Test Methods for Evaluating Solid

Wastes, Physical/Chemical Methods," EPA Publication No. SW-

846 lowest appropriate PQL specified in SW 846, incorporated by

reference at Section 620.125 for such substance. If the

concentration for such substance is less than the lowest appropriate

PQL for the substance specified in SW-846, the guidance level is

the lowest appropriate PQL. The one-in-one-million cancer risk

concentration, the Human Nonthreshold Toxicant Advisory

Concentration (HNTAC), shall be determined according to the

following equation:

HNTAC= TR x BW x AT x 365 days/year

(mg/1)

SFox1RxEFxED

Where:

TR= Target Risk= 1.0E-06

BW= Body Weight= 70 kg

AT= Averaging Time= 70 years

SFo= Oral Slope Factor= Chemical-specific

IR= Daily Water Ingestion Rate= 2 liters/day

EF= Exposure Frequency= 350 days/year

ED= Exposure Duration= 30 years

---

If the guidance level determined for a chemical pursuant to Section

620.605(a) or (b) exceeds the water solubility of that chemical, the

guidance level shall be the water solubility.

(Source: Amended at Ill. Reg.

, effective

Section 620.Appendix A

Procedures for Determining Human Threshold Toxicant

Advisory Concentration for Class I: Potable Resource

Groundwater

a)

Calculating the Human Threshold Toxicant Advisory Concentration For

those substances for which USEPA has not adopted a Maximum

Contaminant Level Goal ("MCLG"), the Human Threshold Toxicant

Advisory Concentration is calculated as follows:

HTTAC = RSC x ADE/W

Where:

HTTAC = Human Threshold Toxicant Advisory Concentration in

milligrams per liter (mg/L)

RSC = Relative contribution of the amount of the exposure to a chemical

via drinking water when compared to the total exposure to that chemical

from all sources. Valid chemical-specific data shall be used if available.

If valid chemical-specific data are not available, a value of 20% (=0.20)

must be used;

ADE = Acceptable Daily Exposure of substance in milligrams per day

(mgid) as determined pursuant to subsection (b); and

W = Per capita daily water consumption equal to 2 liters per day (L/d).

b)

Procedures for Determining Acceptable Daily Exposures for Class I:

Potable Resource Groundwater

1)

The Acceptable Daily Exposure (ADE) represents the maximum

amount of a threshold toxicant in milligrams per day (mg/d) which

if ingested daily for a lifetime results in no adverse effects to

humans. Subsections (b)(2) through (b)(6) list, in prescribed order,

methods for determining the ADE in Class I: Potable Resource

Groundwater.

---

2)

For those substances for which the USEPA has derived a Verified

Oral Reference Dose for humans, USEPA's Reference Dose given

in milligrams per kilogram per day (mg/kg/d), as deteimined in

accordance with methods provided in National Primary and

Secondary Drinking Water Regulations; 40 CFR 136, Appendix B,

40 CFR 141.80, 40 CFR 141.61, and 40 CFR 141.62 Final Rule,

56 Fed. Reg. 3526 3597, (January 30, 1991), incorporated by

reference at Section 620.125, must be used. The ADE equals the

product of multiplying the Reference Dose by 70 kilograms (kg),

which is the assumed average weight of an adult human.

3)

For those substances for which a no observed adverse effect level

for humans (NOAEL-H) exposed to the substance has been

derived, the ADE equals the product of multiplying one-tenth of

the NOAEL-H given in milligrams of toxicant per kilogram of

body weight per day (mg/kg/d) by the average weight of an adult

human of 70 kilograms (kg). If two or more studies are available,

the lowest NOAEL-H must be used in the calculation of the ADE.

4)

For those substances for which only a lowest observed adverse

effect level for humans (LOAEL-H) exposed to the substance has

been derived, one-tenth the LOAEL-H must be substituted for the

NOAEL-H in subsection (b)(3).

5)

For those substances for which a no observed adverse effect level

has been derived from studies of mammalian test species

(NOAEL-A) exposed to the substance, the ADE equals the product

of multiplying 1/100 of the NOAEL-A given in milligrams

toxicant per kilogram of test species weight per day (mg/kg/d) by

the average weight of an adult human of 70 kilograms (kg).

Preference will be given to animal studies having High Validity, as

defined in subsection (c), in the order listed in that subsection.

Studies having a Medium Validity must be considered if no studies

having High Validity are available. If studies of Low Validity

must be used, the ADE must be calculated using 1/1000 of the

NOAEL-A having Low Validity instead of 1/100 of the NOAEL-A

of High or Medium Validity, except as described in subsection

(b)(6). If two or more studies among different animal species are

equally valid, the lowest NOAEL-A among animal species must be

used in the calculation of the ADE. Additional considerations in

selecting the NOAEL-A include:

A) If the NOAEL-A is given in milligrams of toxicant per liter

of water consumed (mg/L), prior to calculating the ADE the

NOAEL-A must be multiplied by the average daily volume

---

of water consumed by the mammalian test species in liters

per day (lid) and divided by the average weight of the

mammalian test species in kilograms (kg).

B)

If the NOAEL-A is given in milligrams of toxicant per

kilogram of food consumed (mg/kg), prior to calculating

the ADE, the NOAEL-A must be multiplied by the average

amount in kilograms of food consumed daily by the

mammalian test species (kg/d) and divided by the average

weight of the mammalian test species in kilograms (kg).

C)

If the mammalian test species was not exposed to the

toxicant each day of the test period, the NOAEL-A must be

multiplied by the ratio of days of exposure to the total days

of the test period.

D)

If more than one equally valid NOAEL-A is available for

the same mammalian test species, the best available data

must be used.

6)

For those substances for which a NOAEL-A is not available but

the lowest observed adverse effect level (LOAEL-A) has been

derived from studies of mammalian test species exposed to the

substance, one-tenth of the LOAEL-A may be substituted for the

NOAEL-A in subsection (b)(5). The LOAEL-A must be selected

in the same manner as that specified in subsection (b)(5).. One-

tenth the LOAEL-A from a study determined to have Medium

Validity may be substituted for a NOAEL-A in subsection (b)(3) if

the NOAEL-A is from a study determined to have Low Validity, or

if the toxicity endpoint measured in the study having the LOAEL-

A of Medium Validity is determined to be more biologically

relevant than the toxicity endpoint measured in the study having

the NOAEL-A of Low Validity.

c)

Procedures for Establishing Validity of Data from Animal Studies

1)

High Validity Studies

A)

High validity studies use a route of exposure by ingestion

or gavage, and are based upon:

i) Data from animal carcinogenicity studies with a

minimum of 2 dose levels and a control group, 2

species, both sexes, with 50 animals per dose per

---

sex, and at least 50 percent survival at 15 months in

mice and 18 months in rats and at least 25 percent

survival at 18 months in mice and 24 months in rats;

ii)

Data from animal chronic studies with a minimum

of 3 dose levels and a control group, 2 species, both

sexes, with 40 animals per dose per sex, and at least

50 percent survival at 15 months in mice and 18

months in rats and at least 25 percent survival at 18

months in mice and 24 months in rats, and a well-

defined NOAEL; or

iii)

Data from animal subchronic studies with a

minimum of 3 dose levels and control, 2 species,

both sexes, 4 animals per dose per sex for non-

rodent species or 10 animals per dose per sex for

rodent species, a duration of at least 5% of the test

species' lifespan, and a well-defined NOAEL.

B)

Supporting studies which reinforce the conclusions of a

study of Medium Validity may be considered to raise such a

study to High Validity.

Medium Validity Studies

Medium validity studies are based upon:

A)

Data from animal carcinogenicity, chronic, or subchronic

studies in which minor deviations from the study design

elements required for a High Validity Study are found, but

which otherwise satisfy the standards for a High Validity

Study;

B)

Data from animal carcinogenicity and chronic studies in

which at least 25 percent survival is reported at 15 months

in mice and 18 months in rats (a lesser survival is permitted

at the conclusion of a longer duration study, but the number

of surviving animals should not fall below 20 percent per

dose per sex at 18 months for mice and 24 months for rats),

but which otherwise satisfy the standards for a High

Validity Study;

C)

Data from animal subchronic or chronic studies in which a

Lowest Observable Adverse Effect Level (LOAEL) is

---

determined, but which otherwise satisfy the standards for a

High Validity Study; or

D)

Data from animal subchronic or chronic studies which have

an inappropriate route of exposure (for example,

intraperitoneal injection or inhalation) but which otherwise

satisfy the standards for a High Validity Study, with

correction factors for conversion to the oral route.

3)

Low Validity Studies

Low validity studies are studies not meeting the standards set forth

in subsection (c)(1) or (c)(2).

(Source: Amended at Ill. Reg. , effective

)

Section 620.Appendix B Procedures for Determining Hazard Indices for Class I:

Potable Resource Groundwater for Mixtures of Similar-

Acting Substances

This appendix describes procedures for evaluating mixtures of similar-

acting substances which may be present in Class I: Potable Resource

Groundwaters. Except as provided otherwise in subsection (c),

subsections (d) through (h) describe the procedure for determining the

Hazard Index for mixtures of similar-acting substances.

b)

For the purposes of this appendix, a "mixture" means two or more

substances which are present in Class I: Potable Resource Groundwater

which may or may not be related either chemically or commercially, but

which are not complex mixtures of related isomers and congeners which

are produced as commercial products (for example, PCBs or technical

grade chlordane).

c)

The following substances listed in Section 620.410 are mixtures of similar

acting substances:

1)

Mixtures of ortho-Dichlorobenzene and para-Dichlorobenzene.

The Hazard Index ("HI") for such mixtures is determined as

follows:

HI = [ortho-Dichlorobenzene]\0.6+

[para-Dichlorobenzene]\0.075

2)

Mixtures of 1,1-Dichloroethylene and 1,1,1-trichloroethane. The

Hazard Index ("HI") for such mixtures is determined as follows:

---

HI = [1,1-Dichloroethylene] \ 0.007 +

[1,1,1-trichloro ethane] \ 0.2

When two or more substances occur together in a mixture, the additivity of

the toxicities of some or all of the substances will be considered when

determining health-based standards for Class I: Potable Resource

Groundwater. This is done by the use of a dose addition model with the

development of a Hazard Index for the mixture of substances with similar-

acting toxicities. This method does not address synergism or antagonism.

Guidelines for detemiining when the dose addition of similar-acting

substances is appropriate are presented in Appendix C.

The Hazard Index is calculated as follows:

HI = [A]/ALA + [B]/ALB + . . . [I]/ALI)

Where:

HI = Hazard Index, unitless.

[A], [B], [1] = Concentration of each similar-acting substance in

groundwater in milligrams per liter (mg/L).

ALA, ALB, ALI = The acceptable level of each similar-acting

substance in the mixture in milligrams per liter (mg/L).

e)

For substances which are considered to have a threshold mechanism of

toxicity, the acceptable level is:

1)

The standards listed in Section 620.410; or

2)

For those substances for which standards have not been established

in Section 620.410, the Human Threshold Toxicant Advisory

Concentration (HTTAC) as determined in Appendix A.

f)

For substances which are carcinogens, the acceptable level is:

1)

The standards listed in Section 620.410; or

2)

For those substances for which standards have not been established

under Section 620.410, the one-in-one-million cancer risk

concentration, unless the concentration for such substance is less

than the lowest appropriate PQL specified in SW-846, incorporated

by reference at Section 620.125, for the substance, in which case

---

the lowest appropriate PQL shall be the acceptable level. the

lowest appropriate PQL of USEPA approved analytical methods

specified in SW 846, incorporated by reference at Section 620.125,

for ach substance.

g)

Since the assumption of dose addition is most properly applied to

substances that induce the same effect by similar modes of action, a

separate HI must be generated for each toxicity endpoint of concern.

h)

In addition to meeting the individual substance objectives, a Hazard Index

must be less than or equal to 1 for a mixture of similar-acting substances.

(Source: Amended at Ill. Reg. , effective

)

Section 620.Appendix C

Guidelines for Determining When Dose Addition of

Similar-Acting Substances in Class I: Potable Resource

Groundwaters is Appropriate

a)

Substances must be considered similar-acting if:

1)

The substances have the same target in an organism (for example,

the same organ, organ system, receptor, or enzyme).

2)

The substances have the same mode of toxic action. These actions

may include, for example, central nervous system depression, liver

toxicity, or cholinesterase inhibition.

b)

Substances that have fundamentally different mechanisms of toxicity

(threshold toxicants vs. carcinogens) must not be considered similar-

acting. However, carcinogens which also cause a threshold toxic effect

should be considered in a mixture with other similar-acting substances

having the same threshold toxic effect. In such a case, an Acceptable

Level for the carcinogen must be derived for its threshold effect, using the

procedures described in Appendix A.

c)

Substances which are components of a complex mixture of related

compounds which are produced as commercial products (for example,

PCBs or technical grade chlordane) are not mixtures, as defined in

Appendix B. Such complex mixtures are equivalent to a single substance.

In such a case, the Human Threshold Toxicant Advisory Concentration

may be derived for threshold effects of the complex mixture, using the

procedures described in Appendix A, if valid toxicological or

epidemiological data are available for the complex mixture. If the

complex mixture is a carcinogen, the Health Advisory Concentration is the

one-in-one-million cancer risk concentration, unless the concentration for

---

such substance is less than the lowest appropriate PQL specified in SW-

846, incorporated by reference at Section 620.125, for the substance, in

which case the lowest appropriate PQL shall be the Health Advisory

concentration.

620.125.

(Source: Amended at Ill. Reg. , effective

Section 620.Appendix D

Confirmation of an Adequate Corrective Action Pursuant to

35 Ill. Adm. Code 620.250(a)(2).

Pursuant to 35 Ill. Adm. Code 620.250(a) if an owner or operator provides a written

confirmation to the Agency that an adequate corrective action, equivalent to a corrective

action process approved by the Agency, is being undertaken in a timely and appropriate

manner, then a groundwater management zone may be established as a three-dimensional

region containing groundwater being managed to mitigate impairment caused by the

release of contaminants from a site. This document provides the form in which the

written confirmation is to be submitted to the Agency.

Note 1.

Parts I and II are to be submitted to IEPA at the time that the facility

claims the alternative groundwater standards. Part III is to be submitted at

the completion of the site investigation. At the completion of the

corrective process, a final report is to be filed which includes the

confirmation statement included in Part IV.

Note 2.

The issuance of a permit by I HPA's Division of Air Pollution Control or

Water Pollution Control for a treatment system does not imply that the

Agency has approved the corrective action process.

Note 3.

If the facility is conducting a cleanup of a unit which is subject to the

requirements of the Resource Conservation and Recovery Act (RCRA) or

the 35 Ill. Adm. Code 731 regulations for Underground Storage Tanks,

this confirmation process is not applicable and cannot be used.

Note 4.

If the answers to any of these questions require explanation or

clarification, provide such in an attachment to this document.

Part I. Facility Information

Facility Name

Facility Address

County

Standard Industrial Code (SIC)

---

1.

Provide a general description of the type of industry, products

manufactured, raw materials used, location and size of the facility.

2.

What specific units (operating or closed) are present at the facility which

are or were used to manage waste, hazardous waste, hazardous substances

or petroleum?

YES

NO

Landfill

Surface Impoundment

Land Treatment

Spray Irrigation

Waste Pile

Incinerator

Storage Tank (above ground)

Storage Stroage Tank (underground)

Container Storage Area

Injection Well

Water Treatment Units

Septic Tanks

French Drains

Transfer Station

Other Units (Please describe)

3.

Provide an extract from a USGS topographic or county map showing the

location of the site and a more detailed scaled map of the facility with each

waste management unit identified in Question 2 or known/suspected

source clearly identified. Map scale must be specified and the location of

the facility must be provided with respect to Township, Range and

Section.

4.

Has the facility ever conducted operations which involved the generation,

manufacture, processing, transportation, treatment, storage or handling of

"hazardous substances" as defined by the Illinois Environmental Protection

Act? Yes

No

If the answer to this question is "yes" generally

describe these operations.

5.

Has the facility generated, stored or treated hazardous waste as defined by

the Resource Conservation and Recovery Act? Yes

No

If the

answer to this question is "yes" generally describe these operations.

---

6.

Has the facility conducted operations which involved the processing,

storage or handling of petroleum? Yes

No

If the answer to this

questions is "yes" generally describe these operations.

7.

Has the facility ever held any of the following permits?

a.

Permits for any waste storage, waste treatment or waste disposal

operation. Yes

No

If the answer to this question is

"yes", identify the _LETA

permit numbers.

b.

Interim Status under the Resources Conservation and Recovery Act

(filing of a RCRA Part A application).. Yes

No

If the

answer to this question is "yes", attach a copy of the last approved

Part A application.

c.

RCRA Part B Permits. Yes

No

If the answer to this

question is "yes", identify the permit log number.

8.

Has the facility ever conducted the closure of a RCRA hazardous waste

management unit? Yes

No

9.

Have any of the following State or federal government actions taken place

for a release at the facility?

a.

Written notification regarding known, suspected or alleged

contamination on or emanating from the property (e.g., a Notice

pursuant to Section 4(q) of the Environment Protection Act)? Yes

No

If the answer to this question is "yes", identify the

caption and date of issuance.

b.

Consent Decree or Order under RCRA, CERCLA, EPAct Section

22.2 (State Superfund), or EPAct Section 21(f) (State RCRA). Yes

No

c.

If either of Items a or b were answered by checking "yes", is the

notice, order or decree still in effect? Yes

No

10.

What groundwater classification will the facility be subject to at the

completion of the remediation?

Class I

Class II

Class 111

Class IV

If more than one Class applies, please explain.

11.

Describe the circumstances which the release to groundwater was

identified.

---

Based on my inquiry of those persons directly responsible for gathering the information, I

certify that the information submitted is, to the best of my knowledge and belief, true and

accurate.

Facility Name

Signature of Owner/Operator

Location of Facility

Name of Owner/Operator

EPA Identification Number

Date

PART II: Release Information

1.

Identify the chemical constituents constitutents release to the groundwater.

Attach additional documents as necessary.

Chemical Description

Chemical Abstract No.

2.

Describe how the site will be investigated to determine the source or

sources of the release.

3.

Describe how groundwater will be monitored to determine the rate and

extent of the release.

4.

Has the release been contained on-site at the facility?

5.

Describe the groundwater monitoring network and groundwater and soil

sampling protocols in place at the facility.

6.

Provide the schedule for investigation and monitoring.

7.

Describe the laboratory quality assurance program utilized for the

investigation.

8.

Provide a summary of the results of available soil testing and groundwater

monitoring associated with the release at the facility. The summary of

results should provide the following information: dates of sampling; types

---

of samples taken (soil or water); locations and depths of samples;

sampling and analytical methods; analytical laboratories used; chemical

constituents for which analyses were performed; analytical detection

limits; and concentrations of chemical constituents in ppm (levels below

detection should be identified as "ND").

Based on my inquiry of those persons directly responsible for gathering the information, I

certify that the information submitted is, to the best of knowledge and belief, true and

accurate and confirm that the actions identified herein will be undertaken in accordance

with the schedule set forth herein.

Facility Name

Signature of Owner/Operator

Location of Facility

Name of Owner/Operator

EPA Identification Number

Date

Part III: Remedy Selection Information

1.

Describe the selected remedy.

2.

Describe other remedies which were considered and why they were

rejected.

3.

Will waste, contaminated soil or contaminated groundwater be removed

from the site in the course of this remediation? Yes

No

If the

answer to this question is "yes", where will the contaminated material be

taken?

4.

Describe how the selected remedy will accomplish the maximum practical

restoration of beneficial use of groundwater.

5.

Describe how the selected remedy will minimize any threat to public

health or the environment.

6.

Describe how the selected remedy will result in compliance with the

applicable groundwater standards.

7.

Provide a schedule for design, construction and operation of the remedy,

including dates for the start and completion.

---

8.

Describe how the remedy will be operated and maintained.

9.

Have any of the following permits been issued for the remediation?

a.

Construction or Operating permit from the Division of Water

Pollution Control. Yes

No

b.

Land treatment permit from the Division of Water Pollution

Control. Yes

No

If the answer to this question is "yes",

identify the permit number.

c.

Construction or Operating permit from the Division of Air

Pollution Control. Yes

No

If the answer to this

question is "yes", identify the permit number.

10.

How will groundwater at the facility be monitored following completion

of the remedy to ensure that the groundwater standards have been

attained?

Based on my inquiry of those persons directly responsible for gathering the information, I

certify that the infolination submitted is, to the best of my knowledge and belief, true and

accurate and confirm that the actions identified herein will be undertaken in accordance

with the schedule set forth herein.

Facility Name

Signature of Owner/Operator

Location of Facility

Name of Owner/Operator

EPA Identification Number

Date

PART

IV:

Completion Certification

This certification must accompany documentation which includes soil and groundwater

monitoring data demonstrating successful completion of the corrective process described

in Parts

Facility Name

Facility Address

County

---

Standard Industrial Code (SIC)

Date

Based on my inquiry of those persons directly responsible for gathering the information, I

certify that an adequate corrective action, equivalent to a corrective action process

approved by the Agency, has been undertaken and that the following restoration

concentrations are being met:

Chemical Name

Chemical Abstract No.

Concentration(mg/1)

Facility Name

Signature of Owner/Operator

Location of Facility

Name of Owner/Operator

EPA Identification Number

Date

(Source: Amended at Ill. Reg. , effective

---

STATE OF ILLINOIS

COUNTY OF SANGAMON

PROOF OF SERVICE

I, the undersigned, on oath state that I have served the attached Motion for

Acceptance, Appearance, Motion for Leave from Filing Requirement, Certification of

Origination, Statement of Reasons, and the Proposed Amendments upon the person to

whom it is directed, by placing a copy in an envelope addressed to:

Dorothy Gunn, Clerk

Illinois Pollution Control Board

James R. Thompson Center

100 W. Randolph, Suite 11-500

Chicago, Illinois 60601

(FIRST CLASS MAIL)

Matthew Dunn, Esq.

Environmental Bureau Chief

Office of the Attorney General

James R. Thompson Center

100 W. Randolph,

12th

Floor

Chicago, Illinois 60601

(FIRST CLASS MAIL)

Bill Richardson, Chief Counsel

Illinois Department of Natural Resources

One Natural Resources Way

Springfield, Illinois 62702-1271

(FIRST CLASS MAIL)

and mailing it from Springfield, Illinois on February 15, 2008 with sufficient postage

affixed.

SUBSCRIBED AND SWORN TO BEFORE ME

This 15th day of February, 2008.

Notary

0,

Public

}

NV

OZI\CNCLI

OFFICIAL SEAL

BRENDA BOEHNER

ff. NOTARY PUBUC, STATE OF ILLINOIS

f

!•

l"*.

•

MY

COMMISSION EXPIRES 11,,3,2009

.—:-:,-;.•:=441tt*tliits4t=1.44.1.+444.48.1**4.4.4

---