1. DISCUSSION
      1. SUBPART B: GENERAL USE WATER QUALITY STANDARDS
        1. Section 302.208 Numeric Standards for Chemical Constituents
    2. CHAPTER I: POLLUTION CONTROL BOARD
      1. Section
    3. SUBPART B: OTHER PERMITS
      1. Section 309.103 Application - General
    4. SUBTITLE D: MINE RELATED WATER POLLUTION
      1. CHAPTER I: POLLUTION CONTROL BOARD
        1. PART 405
        2. STATE AND NPDES PERMITS
          1. Section 405.109 Abandonment Plan
    5. SUBTITLE D: MINE RELATED WATER POLLUTION
      1. CHAPTER I: POLLUTION CONTROL BOARD
        1. PART 406
        2. MINE WASTE EFFLUENT AND WATER QUALITY STANDARDS
        3. SUBPART A: EFFLUENT STANDARDS
          1. Section 406.100 Preamble
        4. SUBPART B: WATER QUALITY STANDARDS
          1. Section 406.203 TDS Related Permit Conditions (Repealed)
    6. SUBTITLE D: MINE RELATED WATER POLLUTION
      1. CHAPTER I: POLLUTION CONTROL BOARD
        1. PART 407
        2. COMPLIANCE AND EFFECTIVE DATES (REPEALED)
          1. Section 407.101 Effective Date
          2. Section 407.102 Applications from Holders of Outstanding Permits
          3. Section 407.103 Expiration of Outstanding Permits
          4. Section 407.104 Abandonment Plan for Existing Permits
          5. Section 407.APPENDIX A REFERENCES TO PREVIOUS RULES

ILLINOIS POLLUTION CONTROL BOARD
September 4, 2008
IN THE MATTER OF:
TRIENNIAL REVIEW OF SULFATE AND
TOTAL DISSOLVED SOLIDS WATER
QUALITY STANDARDS:
PROPOSED AMENDMENTS TO 35 ILL.
ADM. CODE 302.102(b)(6), 302.102(b)(8),
302.102(b)(10), 302.208(g), 309.103(c)(3),
405.109(b)(2)(A), 405.109(b)(2)(B),
406.100(d); REPEALER OF 35 ILL. ADM.
CODE 406.203, 406.209, and PART 407; and
PROPOSED NEW 35 ILL. ADM. CODE
302.208(h)
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R07-9
(Rulemaking - Water)
Adopted Rule. Final Order.
OPINION AND ORDER OF THE BOARD (by G.T. Girard):
The Illinois Environmental Protection Agency (IEPA) proposed rules to update existing
general use water quality standards for sulfate and total dissolved solids (TDS) by amending or
repealing certain sections and parts of 35 Ill. Adm. Code Parts 302, 309, 405, 406, and 407 of the
Board’s water and mine-related pollution rules. On September 20, 2007, the Board proposed, for
first notice, the rule as proposed by IEPA with certain specific changes. Those changes included
the addition of language reflecting current IEPA practice to the rules on mixing zones and the
amendment of mixing zone regulations to allow mixing in certain small streams when adequate
dilution is not available.
On June 19, 2008, the Board proposed for second notice the rule, amending the language
from first notice. Specifically, the Board amended the rule by clarifying: 1) how the sulfate
standard for waters where chloride concentrations are above 500 milligrams per liter (mg/L) and
hardness is 500 mg/L or lower would be set and, 2) how much of the steam volume may be used
for mixing when the dilution ration is less than 3:1.
Today the Board proceeds to final notice making only slight changes as suggested by the
Joint Committee on Administrative Rules (JCAR). JCAR voted to issue a certificate of no
objection on August 19, 2008.
The Board will briefly describe the procedural background and then summarize the rule.
Next, the Board will discuss the reasons for proceeding to final notice.
PROCEDURAL BACKGROUND

2
On October 23, 2006, IEPA filed a proposal under the general rulemaking provisions of
Section 27 of the Environmental Protection Act (Act) (415 ILCS 5/27 (2006)). The proposal
included a 15-page Statement of Reasons (Reasons) and a bound 3-inch thick collection of
supporting facts and exhibits. On November 16, 2006, the Board accepted the rulemaking for
hearing.
On November 27, 2006, in accordance with Section 27(b) of the Act (415 ILCS 5/27(b)
(2006)), the Board requested that the Department of Commerce and Economic Opportunity
(DCEO) conduct an economic impact study for this rulemaking. To date, the Board has not
received a response from DCEO.
The Board held two hearings in this proceeding before Hearing Officer Marie Tipsord.
The first hearing was held on March 7, 2007, in Springfield and the second on April 23, 2007, in
Chicago. At those hearings, the Board heard testimony from:
Robert Mosher, Brian Koch and Toby Frevert on behalf of IEPA;
James Huff and Brigitte Postel on behalf of CITGO Petroleum Corporation (CITGO);
Glynnis Collins on behalf of Prairie Rivers Network, Sierra Club and the Environmental
Law and Policy Center (collectively Environmental Groups);
Phil Gonet and Jim Boswell on behalf of the Illinois Coal Association (ICA).
At the close of hearings, a June 7, 2007 deadline for public comments to be filed was set.
The Board received a total of eight public comments
1
from the following:
IEPA (PC 2, PC 4);
ICA (PC 1, PC 3);
Illinois Association of Wastewater Agencies Water Quality Subcommittee (IAWA) (PC
5);
CITGO (PC 6)
Illinois Environmental Regulatory Group (IERG) (PC 7); and
Environmental Groups (PC 8).
On September 20, 2007, the Board adopted the rule for first notice. The proposed rule
was published in the
Illinois Register
on October 5, 2007 (31 Ill. Reg. 13624 (Oct. 5, 2007)). On
October 11, 2007, by hearing officer order, the Board extended the deadline for filing first-notice
public comments to December 3, 2007. The Board has received the following public comments
since the rule was adopted for first notice:
IERG (PC 9);
IEPA (PC 10, PC 11).
On May 1, 2008, the Board adopted a
proposed
second notice to allow for comment on
changes to the first notice proposal proposed at second notice. The Board allowed comments to
1
Public comments are cited as “PC _ at _.”

 
3
be filed until June 2, 2008. On June 2, 2008, the Environmental Groups filed a comment (PC
13).
On June 19, 2008, the Board adopted the rule for second notice and filed the rule with
JCAR. On August 19, 2008, JCAR voted a certificate of no objection to the rule.
SUMMARY OF THE RULE
IEPA’s proposed rule set forth a sulfate standard for general use waters that varied from
500 milligrams per liter (mg/L) to 2,500 mg/L, depending on the associated chloride and
hardness levels measured in the water. The sulfate standard in waters used for livestock watering
had a maximum level of 2,000 mg/L. The proposal eliminated the total dissolved solids (TDS)
water quality standard for general use waters. The proposal also amended the mixing zone
regulations to allow for mixing in 7Q1.1 zero flow streams
2
, and in streams with less than a 3:1
dilution ratio. Finally, the proposal deleted the provisions addressing separate sulfate and
chloride water quality standards for discharges from mining operations. Discharges from mining
operations would be subject to the general use water quality standards under the proposed
regulations. The Board requested additional comment on several of the provisions proposed for
first notice, particularly regarding the economic reasonableness of the proposal to delete a special
sulfate water quality standard for coal mines.
In response to the comments, the Board made changes to Section 302.208(h)(3)(C) and
Section 309.102(b)(8). Specifically, the Board amended Section 302.208(h)(3)(C) to establish a
standard for sulfate where chlorides exceed 500 mg/L and hardness is at or below 500 mg/L,
according to Section 303(c) of the Clean Water Act and federal regulations at 40 C.F.R.
131.10(j)(2). Section 309.102(b)(8) was amended to require an NPDES permit applicant seeking
a mixing zone more than 50% of the volume flow in streams where the dilution ratio is less than
3:1 to demonstrate the provision of an adequate zone of passage.
DISCUSSION
Section 27 of the Act obligates IEPA to provide an economic analysis to the Board and
requires the Board to determine that the rule is economically reasonable and technically feasible.
415 ILCS 5/27 (2006). Specifically, the Act requires a person filing a proposed rule with the
Board to “describe, to the extent reasonably practicable, the universe of affected sources and
facilities and the economic impact of the proposed rule.” 415 ILCS 5/27(a) (2006). The Board
finds that IEPA has described affected sources including “19 active coal mines in Illinois at the
present time.” PC 2 at 2. Further, IEPA has described the economic reasonableness of the
proposed sulfate standards. Specifically, IEPA analyzed point sources (including mining
operations) within three categories (PC 11 at 3) concluding that only a small number of existing
mines would need to employ additional controls such as best management practices.
The Illinois Coal Association (ICA) submitted as Hearing Exhibit 2 a technical report,
dated May 1, 2004 through April 30, 2005, on the economic impact for coal mines. No other
2
Streams that have zero flow for at least seven consecutive days recurring on average in nine years
out of ten.

4
group has provided specific cost estimates. ICA’s report estimated that the total annualized cost
(capital and operating) for all coal mines in Illinois for compliance with a 2000 mg/L sulfate
standard would be $730 million over a ten-year period. Exhibit 2 at 11. For compliance with a
500 mg/L standard, the report estimated a total annualized cost of $7.5 billion over a ten-year
period.
Id.
The Board carefully reviewed ICA’s report and the rest of the record, and found that the
record supported proceeding to first notice with the proposed sulfate standard as amended by the
Board. The Board concluded that ICA’s economic analysis was based on an assumption that
additional treatment would be required for coal mines to achieve compliance, but that the
Board’s proposed changes to mixing provisions would allow mixing as a means of compliance,
thus significantly reducing the proposed rules’ economic impact upon industrial dischargers and
coal mines.
See
Triennial Review of Sulfate and Total Dissolved Solids Water Quality
Standards: Proposed Amendments to 35 Ill. Adm. Code 302.102(b)(6), 302.102(b)(8),
302.102(b)(10), 302.208(g), 309.103(c)(3), 405.109(b)(2)(A), 405.109(b)(2)(B), 406.100(d);
Repealer of 35 Ill. Adm. Code 406.203 and Part 407; and Proposed New 35 Ill. Adm. Code
302.206(h) (Triennial Review), R07-9, slip op. at 30-31 (Sept. 20, 2007) (first notice).
The Board notes that, in accordance with Section 27(b) of the Act (415 ILCS 5/27(b)
(2006)), the Board conducted a public hearing on the economic impact of the proposed rules and
notified the public at least 20 days before the hearing. 415 ILCS 5/27(b)(2) (2008). The Board
requested that the Department of Commerce and Economic Opportunity conduct a study of the
economic impact of the proposed rules.
Id.
at (b)(1).
No additional hearings were requested, and no participant besides the ICA has submitted
any additional economic data regarding the economic reasonableness of the proposed sulfate
standard. The Board again carefully reviewed the record and considered all evidence in the
record regarding the economic reasonableness of the proposed rules including sulfate standards
on mining operations, before proceeding to second notice. The Board found that the record
supports proceeding to second notice with the rule including the sulfate standards as proposed by
IEPA. Triennial Review of Sulfate and Total Dissolved Solids Water Quality Standards:
Proposed Amendments to 35 Ill. Adm. Code 302.102(b)(6), 302.102(b)(8), 302.102(b)(10),
302.208(g), 309.103(c)(3), 405.109(b)(2)(A), 405.109(b)(2)(B), 406.100(d); Repealer of 35 Ill.
Adm. Code 406.203 and Part 407; and Proposed New 35 Ill. Adm. Code 302.206(h) (Triennial
Review), R07-9, slip op. at 30-31 (June 19, 2008) (second notice).
During the proposed second notice period, only one comment was received (PC 13) and
the Board amended the rulemaking language to address those concerns before proceeding to
second notice.
The Board therefore finds that the rule is technically feasible and economically
reasonable. Further, the Board finds that the record supports proceeding to adoption with the
rule as proposed at second notice making only the changes suggested by JCAR.
CONCLUSION

5
The Board finds that the record supports proceeding to final notice with IEPA’s proposal
as amended by the Board. The Board finds the record establishes that the rulemaking is
technically feasible and economically reasonable. Therefore the Board will proceed with final
adoption of this rule.
ORDER
The Board adopts the proposed amendments set forth below for final notice and directs
the Clerk to cause the rules to be filed with the Secretary of State for publication in the
Illinois
Register
for final adoption.
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 302
WATER QUALITY STANDARDS
SUBPART A: GENERAL WATER QUALITY PROVISIONS
Section
302.100
Definitions
302.101
Scope and Applicability
302.102
Allowed Mixing, Mixing Zones and ZIDs
302.103
Stream Flows
302.104
Main River Temperatures
302.105
Antidegradation
SUBPART B: GENERAL USE WATER QUALITY STANDARDS
Section
302.201
Scope and Applicability
302.202
Purpose
302.203
Offensive Conditions
302.204
pH
302.205
Phosphorus
302.206
Dissolved Oxygen
302.207
Radioactivity
302.208
Numeric Standards for Chemical Constituents
302.209
Fecal Coliform
302.210
Other Toxic Substances
302.211
Temperature
302.212
Total Ammonia Nitrogen
302.213
Effluent Modified Waters (Ammonia)(Repealed)
SUBPART C: PUBLIC AND FOOD PROCESSING WATER SUPPLY STANDARDS

6
Section
302.301
Scope and Applicability
302.302
Algicide Permits
302.303
Finished Water Standards
302.304
Chemical Constituents
302.305
Other Contaminants
302.306
Fecal Coliform
302.307
Radium 226 and 228
SUBPART D: SECONDARY CONTACT AND INDIGENOUS AQUATIC LIFE
STANDARDS
Section
302.401
Scope and Applicability
302.402
Purpose
302.403
Unnatural Sludge
302.404
pH
302.405
Dissolved Oxygen
302.406
Fecal Coliform (Repealed)
302.407
Chemical Constituents
302.408
Temperature
302.409
Cyanide
302.410
Substances Toxic to Aquatic Life
SUBPART E: LAKE MICHIGAN BASIN WATER QUALITY STANDARDS
Section
302.501
Scope, Applicability, and Definitions
302.502
Dissolved Oxygen
302.503
pH
302.504
Chemical Constituents
302.505
Fecal Coliform
302.506
Temperature
302.507
Thermal Standards for Existing Sources on January 1, 1971
302.508
Thermal Standards for Sources Under Construction But Not In Operation on
January 1, 1971
302.509
Other Sources
302.510
Incorporations by Reference
302.515
Offensive Conditions
302.520
Regulation and Designation of Bioaccumulative Chemicals of Concern (BCCs)
302.521
Supplemental Antidegradation Provisions for Bioaccumulative Chemicals of
Concern (BCCs)
302.525
Radioactivity
302.530
Supplemental Mixing Provisions for Bioaccumulative Chemicals of Concern
(BCCs)

7
302.535
Ammonia Nitrogen
302.540
Other Toxic Substances
302.545
Data Requirements
302.550
Analytical Testing
302.553
Determining the Lake Michigan Aquatic Toxicity Criteria or Values - General
Procedures
302.555
Determining the Tier I Lake Michigan Acute Aquatic Toxicity Criterion
(LMAATC): Independent of Water Chemistry
302.560
Determining the Tier I Lake Michigan Basin Acute Aquatic Life Toxicity
Criterion (LMAATC): Dependent on Water Chemistry
302.563
Determining the Tier II Lake Michigan Basin Acute Aquatic Life Toxicity Value
(LMAATV)
302.565
Determining the Lake Michigan Basin Chronic Aquatic Life Toxicity Criterion
(LMCATC) or the Lake Michigan Basin Chronic Aquatic Life Toxicity Value
(LMCATV)
302.570
Procedures for Deriving Bioaccumulation Factors for the Lake Michigan Basin
302.575
Procedures for Deriving Tier I Water Quality Criteria and Values in the Lake
Michigan Basin to Protect Wildlife
302.580
Procedures for Deriving Water Quality Criteria and Values in the Lake Michigan
Basin to Protect Human Health – General
302.585
Procedures for Determining the Lake Michigan Basin Human Health Threshold
Criterion (LMHHTC) and the Lake Michigan Basin Human Health Threshold
Value (LMHHTV)
302.590
Procedures for Determining the Lake Michigan Basin Human Health
Nonthreshold Criterion (LMHHNC) or the Lake Michigan Basin Human Health
Nonthreshold Value (LMHHNV)
302.595
Listing of Bioaccumulative Chemicals of Concern, Derived Criteria and Values
SUBPART F: PROCEDURES FOR DETERMINING WATER QUALITY CRITERIA
Section
302.601
Scope and Applicability
302.603
Definitions
302.604
Mathematical Abbreviations
302.606
Data Requirements
302.612
Determining the Acute Aquatic Toxicity Criterion for an Individual Substance –
General Procedures
302.615
Determining the Acute Aquatic Toxicity Criterion - Toxicity Independent of
Water Chemistry
302.618
Determining the Acute Aquatic Toxicity Criterion - Toxicity Dependent on Water
Chemistry
302.621
Determining the Acute Aquatic Toxicity Criterion - Procedure for Combinations
of Substances
302.627
Determining the Chronic Aquatic Toxicity Criterion for an Individual Substance -
General Procedures

8
302.630
Determining the Chronic Aquatic Toxicity Criterion - Procedure for
Combinations of Substances
302.633
The Wild and Domestic Animal Protection Criterion
302.642
The Human Threshold Criterion
302.645
Determining the Acceptable Daily Intake
302.648
Determining the Human Threshold Criterion
302.651
The Human Nonthreshold Criterion
302.654
Determining the Risk Associated Intake
302.657
Determining the Human Nonthreshold Criterion
302.658
Stream Flow for Application of Human Nonthreshold Criterion
302.660
Bioconcentration Factor
302.663
Determination of Bioconcentration Factor
302.666
Utilizing the Bioconcentration Factor
302.669
Listing of Derived Criteria
302.APPENDIX A
References to Previous Rules
302.APPENDIX B
Sources of Codified Sections
302.APPENDIX C
Maximum total ammonia nitrogen concentrations allowable for certain
combinations of pH and temperature
302.TABLE A
pH-Dependent Values of the AS (Acute Standard)
302.TABLE B
Temperature and pH-Dependent Values of the CS (Chronic Standard) for
Fish Early Life Stages Absent
302.TABLE C
Temperature and pH-Dependent Values of the CS (Chronic Standard) for
Fish Early Life Stages Present
302.APPENDIX D
Section 302.206(d): Stream Segments for Enhanced Dissolved Oxygen
Protection
AUTHORITY: Implementing Section 13 and authorized by Sections 11(b) and 27 of the
Environmental Protection Act [415 ILCS 5/13, 11(b), and 27]
SOURCE: Filed with the Secretary of State January 1, 1978; amended at 2 Ill. Reg. 44, p. 151,
effective November 2, 1978; amended at 3 Ill. Reg. 20, p. 95, effective May 17, 1979; amended
at 3 Ill. Reg. 25, p. 190, effective June 21, 1979; codified at 6 Ill. Reg. 7818; amended at 6 Ill.
Reg. 11161, effective September 7, 1982; amended at 6 Ill. Reg. 13750, effective October 26,
1982; amended at 8 Ill. Reg. 1629, effective January 18, 1984; peremptory amendments at 10 Ill.
Reg. 461, effective December 23, 1985; amended at R87-27 at 12 Ill. Reg. 9911, effective May
27, 1988; amended at R85-29 at 12 Ill. Reg. 12082, effective July 11, 1988; amended in R88-1 at
13 Ill. Reg. 5998, effective April 18, 1989; amended in R88-21(A) at 14 Ill. Reg. 2899, effective
February 13, 1990; amended in R88-21(B) at 14 Ill. Reg. 11974, effective July 9, 1990; amended
in R94-1(A) at 20 Ill. Reg. 7682, effective May 24, 1996; amended in R94-1(B) at 21 Ill. Reg.
370, effective December 23, 1996; expedited correction at 21 Ill. Reg. 6273, effective December
23, 1996; amended in R97-25 at 22 Ill. Reg. 1356, effective December 24, 1997; amended in
R99-8 at 23 Ill. Reg. 11249, effective August 26, 1999; amended in R01-13 at 26 Ill. Reg. 3505,
effective February 22, 2002; amended in R02-19 at 26 Ill. Reg. 16931, effective November 8,
2002; amended in R02-11 at 27 Ill. Reg. 166, effective December 20, 2002; amended in R04-21

9
at 30 Ill. Reg. 4919, effective March 1, 2006; amended in R04-25 at 32 Ill. Reg. 2254, effective
January 28, 2008; amended in R07-9 at 32 Ill. Reg. __________, effective __________.
SUBPART A: GENERAL WATER QUALITY PROVISIONS
Section 302.102
Allowed Mixing, Mixing Zones and ZIDs
a)
Whenever a water quality standard is more restrictive than its corresponding
effluent standard, or where there is no corresponding effluent standard specified at
35 Ill. Adm. Code 304, an opportunity shall be allowed for compliance with 35
Ill. Adm. Code 304.105 by mixture of an effluent with its receiving waters,
provided the discharger has made every effort to comply with the requirements of
35 Ill. Adm. Code 304.102.
b)
The portion, volume and area of any receiving waters within which mixing is
allowed pursuant to subsection (a) shall be limited by the following:
1)
Mixing must be confined in an area or volume of the receiving water no
larger than the area or volume which would result after incorporation of
outfall design measures to attain optimal mixing efficiency of effluent and
receiving waters. Such measures may include, but are not limited to, use
of diffusers and engineered location and configuration of discharge points.
2)
Mixing is not allowed in waters which include a tributary stream entrance
if such mixing occludes the tributary mouth or otherwise restricts the
movement of aquatic life into or out of the tributary.
3)
Mixing is not allowed in water adjacent to bathing beaches, bank fishing
areas, boat ramps or dockages or any other public access area.
4)
Mixing is not allowed in waters containing mussel beds, endangered
species habitat, fish spawning areas, areas of important aquatic life habitat,
or any other natural features vital to the well being of aquatic life in such a
manner that the maintenance of aquatic life in the body of water as a
whole would be adversely affected.
5)
Mixing is not allowed in waters which contain intake structures of public
or food processing water supplies, points of withdrawal of water for
irrigation, or watering areas accessed by wild or domestic animals.
6)
Mixing must allow for a zone of passage for aquatic life in which water
quality standards are met. However, a zone of passage is not required in
receiving streams that have zero flow for at least seven consecutive days
recurring on average in nine years out of ten.

10
7)
The area and volume in which mixing occurs, alone or in combination
with other areas and volumes of mixing, must not intersect any area of any
body of water in such a manner that the maintenance of aquatic life in the
body of water as a whole would be adversely affected.
8)
The area and volume in which mixing occurs, alone or in combination
with other areas and volumes of mixing must not contain more than 25%
of the cross-sectional area or volume of flow of a stream except for those
streams where the dilution ratio is less than 3:1. In streams where the
dilution ratio is less than 3:1, the volume in which mixing occurs, alone or
in combination with other volumes of mixing, must not contain more than
50 % of the volume flow unless an applicant for an NPDES permit
demonstrates, pursuant subsection (d) of this section, that an adequate
zone of passage is provided for pursuant to Section 302.102(b)(6). Mixing
is not allowed in receiving waters which have a zero minimum seven day
low flow which occurs once in ten years.
9)
No mixing is allowed where the water quality standard for the constituent
in question is already violated in the receiving water.
10)
No body of water may be used totally for mixing of single outfall or
combination of outfalls, except as provided in Section 302.102(b)(6).
11)
Single sources of effluents which have more than one outfall shall be
limited to a total area and volume of mixing no larger than that allowable
if a single outfall were used.
12)
The area and volume in which mixing occurs must be as small as is
practicable under the limitations prescribed in this subsection, and in no
circumstances may the mixing encompass a surface area larger than 26
acres.
c)
All water quality standards of this Part must be met at every point outside of the
area and volume of the receiving water within which mixing is allowed. The
acute toxicity standards of Sections 302.208 and 302.210 must be met within the
area and volume within which mixing is allowed, except as provided in
subsection (e).
d)
Pursuant to the procedures of Section 39 of the Act and 35 Ill. Adm. Code 309, a
person may apply to the Agency to include as a condition in an NPDES permit
formal definition of the area and volume of the waters of the State within which
mixing is allowed for the NPDES discharge in question. Such formally defined
area and volume of allowed mixing shall constitute a "mixing zone" for the
purposes of 35 Ill. Adm. Code: Subtitle C. Upon proof by the applicant that a
proposed mixing zone conforms with the requirements of Section 39 of the Act,
this Section and any additional limitations as may be imposed by the Clean Water

 
11
Act (CWA) (33 USC U.S.C 1251 et seq.), the Act or Board regulations, the
Agency shall, pursuant to Section 39(b) of the Act, include within the NPDES
permit a condition defining the mixing zone.
e)
Pursuant to the procedures of Section 39 of the Act and 35 Ill. Adm. Code 309, a
person may apply to the Agency to include as a condition in an NPDES permit a
ZID as a component portion of a mixing zone. Such ZID shall, at a minimum, be
limited to waters within which effluent dispersion is immediate and rapid. For the
purposes of this subsection, "immediate" dispersion means an effluent's merging
with receiving waters without delay in time after its discharge and within close
proximity of the end of the discharge pipe, so as to minimize the length of
exposure time of aquatic life to undiluted effluent, and "rapid" dispersion means
an effluent's merging with receiving waters so as to minimize the length of
exposure time of aquatic life to undiluted effluent. Upon proof by the applicant
that a proposed ZID conforms with the requirements of Section 39 of the Act and
this Section, the Agency shall, pursuant to Section 39(b) of the Act, include
within the NPDES permit a condition defining the ZID.
f)
Pursuant to Section 39 of the Act and 35 Ill. Adm. Code 309.103, an applicant for
an NPDES permit shall submit data to allow the Agency to determine that the
nature of any mixing zone or mixing zone in combination with a ZID conforms
with the requirements of Section 39 of the Act and of this Section. A permittee
may appeal Agency determinations concerning a mixing zone or ZID pursuant to
the procedures of Section 40 of the Act and 35 Ill. Adm. Code 309.181.
g)
Where a mixing zone is defined in an NPDES permit, the waters within that
mixing zone, for the duration of that NPDES permit, shall constitute the sole
waters within which mixing is allowed for the permitted discharge. It shall not be
a defense in any action brought pursuant to 35 Ill. Adm. Code 304.105 that the
area and volume of waters within which mixing may be allowed pursuant to
subsection (b) is less restrictive than the area or volume or waters encompassed in
the mixing zone.
h)
Where a mixing zone is explicitly denied in a NPDES permit, no waters may be
used for mixing by the discharge to which the NPDES permit applies, all other
provisions of this Section notwithstanding.
i)
Where an NPDES permit is silent on the matter of a mixing zone, or where no
NPDES permit is in effect, the burden of proof shall be on the discharger to
demonstrate compliance with this Section in any action brought pursuant to 35 Ill.
Adm. Code 304.105.
(Source: Amended at 32 Ill. Reg. _________, effective ___________)
SUBPART B: GENERAL USE WATER QUALITY STANDARDS

 
12
Section 302.208
Numeric Standards for Chemical Constituents
a)
The acute standard (AS) for the chemical constituents listed in subsection (e) shall
not be exceeded at any time except as provided in subsection (d).
b)
The chronic standard (CS) for the chemical constituents listed in subsection (e)
shall not be exceeded by the arithmetic average of at least four consecutive
samples collected over any period of at least four days, except as provided in
subsection (d). The samples used to demonstrate attainment or lack of attainment
with a CS must be collected in a manner that assures an average representative of
the sampling period. For the metals that have water quality based standards
dependent upon hardness, the chronic water quality standard will be calculated
according to subsection (e) using the hardness of the water body at the time the
metals sample was collected. To calculate attainment status of chronic metals
standards, the concentration of the metal in each sample is divided by the
calculated water quality standard for the sample to determine a quotient. The
water quality standard is attained if the mean of the sample quotients is less than
or equal to one for the duration of the averaging period.
c)
The human health standard (HHS) for the chemical constituents listed in
subsection (f) shall not be exceeded when the stream flow is at or above the
harmonic mean flow pursuant to Section 302.658 nor shall an annual average,
based on at least eight samples, collected in a manner representative of the
sampling period, exceed the HHS except as provided in subsection (d).
d)
In waters where mixing is allowed pursuant to Section 302.102, the following
apply:
1)
The AS shall not be exceeded in any waters except for those waters for
which the Agency has approved a zone of initial dilutions (ZID) pursuant
to Section 302.102.
2)
The CS shall not be exceeded outside of waters in which mixing is
allowed pursuant to Section 302.102.
3)
The HHS shall not be exceeded outside of waters in which mixing is
allowed pursuant to Section 302.102.
e)
Numeric Water Quality Standards for the Protection of Aquatic Organisms
Constituent
STORET
Number
AS
(μg/L)
CS
(μg/L)
Arsenic
(trivalent,
dissolved)
22680
360
×
1.0*
=
360
190
×
1.0*
=
190

13
Cadmium
(dissolved)
01025
exp
()
()(
[])
*,
ln
0.041838
ln
1.138672
⎧−
+
×
H
e
AB H
where
A
= −2
.198
and
B
=
1.128
exp
()
()(
[])
*,
ln
0.041838
ln
1.101672
⎧−
+
×
H
e
AB H
where
A
= −3
.490
0.7852
and
B
=
Chromium
(hexavalent,
total)
01032
16
11
Chromium
(trivalent,
dissolved)
80357
exp
ln
()
0.316*
e
A
+
B H
×
,
where
A
=
3.688
and
B
=
0.8190
exp
ln
( )
0.860 *
e
A
+
B H
×
,
where
A
=
1.561
and
B
=
0.8190
Copper
(dissolved)
01040
exp
ln
()
0.960*
e
A
+
B H
×
,
where
A
= −1
.464
and
B
=
0.9422
exp
ln
( )
0.960 *
e
A
+
B H
×
,
where
A
= −1
.465
and
B
=
0.8545
Cyanide
00718
22
5.2
Lead
(dissolved)
01049
exp
()
()(
[])
*,
ln
0.145712
ln
1.46203
⎧−
+
×
H
e
AB H
where
A
= −1
.301
and
B
=
0.1.273
exp
()
()(
[])
*,
ln
0.145712
ln
1.46203
⎧−
+
×
H
e
AB H
where
A
= −2
.863
and
B
=
1.273
Mercury
(dissolved)
71890
2.6
×
0.85*
=
2.2
1.3× 0.85*
=
1.1

14
Nickel
(dissolved)
01065
exp
ln
()
0.998*
e
A
+
B H
×
,
where
A
=
0.5173
and
B
=
0.8460
exp
ln
( )
0.997 *
e
A
+
B H
×
,
where
A
= −2
.286
and
B
=
0.8460
TRC
500600
19
11
Zinc
(dissolved)
01090
exp
ln
()
0.978*
e
A
+
B H
×
,
where
A
=
0.9035
and
B
=
0.8473
exp
ln
( )
0.986 *
e
A
+
B H
×
,
where
A
= −0
.8165
and
B
=
0.8473
Benzene
78124
4200
860
Ethyl-
benzene
78113
150
14
Toluene
78131
2000
600
Xylene(s)
81551
920
360
where:
μg/L
= microgram per liter,
exp
[x]
e
x
= base of natural logarithms raised to the x- power,
ln
()
H
= natural logarithm of Hardness (STORET 00900), and
*
= conversion factor multiplier for dissolved metals
f)
Numeric Water Quality Standard for the Protection of Human Health
Constituent
STORET
Number
(μg/L)
Mercury
71900
0.012
Benzene
78124
310
where:
μg/L
= micrograms per liter
g)
Concentrations of the following chemical constituents shall not be exceeded
except in waters for which mixing is allowed pursuant to Section 302.102.
STORET

15
Constituent
Unit
Number
Standard
Barium (total)
mg/L
01007
5.0
Boron (total)
mg/L
01022
1.0
Chloride (total)
mg/L
00940
500
Fluoride
mg/L
00951
1.4
Iron (dissolved)
mg/L
01046
1.0
Manganese (total)
mg/L
01055
1.0
Phenols
mg/L
32730
0.1
Selenium (total)
mg/L
01147
1.0
Silver (total)
μg/L
01077
5.0
Sulfate
mg/L
00945
500
Total Dissolved
Solids
mg/L
70300
1000
where: mg/L
= milligram per liter and
μg/L
= microgram per liter
h)
The following concentrations for sulfate must not be exceeded except in receiving
waters for which mixing is allowed pursuant to Section 302.102:
1)
At any point where water is withdrawn or accessed for purposes of
livestock watering, the average of sulfate concentrations must not exceed
2,000 mg/L when measured at a representative frequency over a 30 day
period.
2)
The results of the following equations provide sulfate water quality
standards in mg/L for the specified ranges of hardness (in mg/L as CaCO
3
)
and chloride (in mg/L) and must be met at all times:
A)
If the hardness concentration of receiving waters is greater than or
equal to 100 mg/L but less than or equal to 500 mg/L, and if the
chloride concentration of waters is greater than or equal to 25
mg/L but less than or equal to 500 mg/L, then:
C = [1276.7 + 5.508 (hardness) – 1.457 (chloride) ] * 0.65
where, C = sulfate concentration
B)
If the hardness concentration of waters is greater than or equal to
100 mg/L but less than or equal to 500 mg/L, and if the chloride

 
16
concentration of waters is greater than or equal to 5 mg/L but less
than 25 mg/L, then:
C = [-57.478 + 5.79 (hardness) + 54.163 (chloride) ] * 0.65
where C = sulfate concentration
3)
The following sulfate standards must be met at all times when hardness (in
mg/L as CaCO
3
) and chloride (in mg/L) concentrations other than
specified in (h)(2) are present:
A)
If the hardness concentration of waters is less than 100 mg/L or
chloride concentration of waters is less than 5 mg/L, the sulfate
standard is 500 mg/L.
B)
If the hardness concentration of waters is greater than 500 mg/L
and the chloride concentration of waters is 5 mg/L or greater, the
sulfate standard is 2,000 mg/L.
C)
If the combination of hardness and chloride concentrations of
existing waters are not reflected in subsection (h)(3)(A) or (B), the
sulfate standard may be determined in a site-specific rulemaking
pursuant to section 303(c) of the Federal Water Pollution Control
Act of 1972 (Clean Water Act), 33 USC 1313, and Federal
Regulations at 40 CFR. 131.10(j)(2).
(Source: Amended at 32 Ill. Reg. ____________, effective _____________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 309
PERMITS
SUBPART A: NPDES PERMITS
Section
309.101
Preamble
309.102
NPDES Permit Required
309.103
Application - General
309.104
Renewal
309.105
Authority to Deny NPDES Permits
309.106
Access to Facilities and Further Information
309.107
Distribution of Applications
309.108
Tentative Determination and Draft Permit
309.109
Public Notice

 
17
309.110
Contents of Public Notice of Application
309.111
Combined Notices
309.112
Agency Action After Comment Period
309.113
Fact Sheets
309.114
Notice to Other Governmental Agencies
309.115
Public Hearings on NPDES Permit Applications
309.116
Notice of Agency Hearing
309.117
Agency Hearing
309.118
Agency Hearing File
309.119
Agency Action After Hearing
309.120
Reopening the Record to Receive Additional Written Comment
309.141
Terms and Conditions of NPDES Permits
309.142
Water Quality Standards and Waste Load Allocation
309.143
Effluent Limitations
309.144
Federal New Source Standards of Performance
309.145
Duration of Permits
309.146
Authority to Establish Recording, Reporting, Monitoring and Sampling
Requirements
309.147
Authority to Apply Entry and Inspection Requirements
309.148
Schedules of Compliance
309.149
Authority to Require Notice of Introduction of Pollutants into Publicly Owned
Treatment Works
309.150
Authority to Ensure Compliance by Industrial Users with Sections 204(b), 307
and 308 of the Clean Water Act
309.151
Maintenance and Equipment
309.152
Toxic Pollutants
309.153
Deep Well Disposal of Pollutants (Repealed)
309.154
Authorization to Construct
309.155
Sewage Sludge Disposal
309.156
Total Dissolved Solids Reporting and Monitoring
309.157
Permit Limits for Total Metals
309.181
Appeal of Final Agency Action on a Permit Application
309.182
Authority to Modify, Suspend or Revoke Permits
309.183
Revision of Schedule of Compliance
309.184
Permit Modification Pursuant to Variance
309.185
Public Access to Information
309.191
Effective Date
SUBPART B: OTHER PERMITS
Section
309.201
Preamble
309.202
Construction Permits
309.203
Operating Permits; New or Modified Sources
309.204
Operating Permits; Existing Sources
309.205
Joint Construction and Operating Permits
309.206
Experimental Permits

 
18
309.207
Former Permits (Repealed)
309.208
Permits for Sites Receiving Sludge for Land Application
309.221
Applications - Contents
309.222
Applications - Signatures and Authorizations
309.223
Applications - Registered or Certified Mail
309.224
Applications - Time to Apply
309.225
Applications - Filing and Final Action By Agency
309.241
Standards for Issuance
309.242
Duration of Permits Issued Under Subpart B
309.243
Conditions
309.244
Appeals from Conditions in Permits
309.261
Permit No Defense
309.262
Design, Operation and Maintenance Criteria
309.263
Modification of Permits
309.264
Permit Revocation
309.265
Approval of Federal Permits
309.266
Procedures
309.281
Effective Date
309.282
Severability
309.APPENDIX A
References to Previous Rules
AUTHORITY: Implementing Sections 13 and 13.3 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/13, 13.3 and 27].
SOURCE: Adopted in R71-14, at 4 PCB 3, March 7, 1972; amended in R73-11, 12, at 14 PCB
661, December 5, 1974, at 16 PCB 511, April 24, 1975, and at 28 PCB 509, December 20, 1977;
amended in R73-11, 12, at 29 PCB 477, at 2 Ill. Reg. 16, p. 20, effective April 20, 1978;
amended in R79-13, at 39 PCB 263, at 4 Ill. Reg. 34, p. 159, effective August 7, 1980; amended
in R77-12B, at 41 PCB 369, at 5 Ill. Reg. 6384, effective May 28, 1981; amended in R76-21, at
44 PCB 203, at 6 Ill. Reg. 563, effective December 24, 1981; codified at 6 Ill. Reg. 7818;
amended in R82-5, 10, at 54 PCB 411, at 8 Ill. Reg. 1612, effective January 18, 1984; amended
in R86-44 at 12 Ill. Reg. 2495, effective January 13, 1988; amended in R88-1 at 13 Ill. Reg.
5993, effective April 18, 1989; amended in R88-21(A) at 14 Ill. Reg. 2892, effective February
13, 1990; amended in R91-5 at 16 Ill. Reg. 7339, effective April 27, 1992; amended in R95-22 at
20 Ill. Reg. 5526, effective April 1, 1996; amended in R99-8 at 23 Ill. Reg. 11287, effective
August 26, 1999; amended in R02-11 at 27 Ill. Reg. 202, effective December 20, 2002; amended
in R03-19 at 28 Ill. Reg. 7310, effective May 7, 2004; amended in R07-9 at 32 Ill. Reg.
__________, effective __________.
SUBPART A: NPDES PERMITS
Section 309.103
Application - General
a)
Application Forms

19
1)
An applicant for a National Pollution Discharge Elimination System
(NPDES) Permit shall file an application, in accordance with Section
309.223 hereof
, on forms provided by the Illinois Environmental
Protection Agency (Agency). Such forms shall comprise the NPDES
application forms promulgated by the U.S. Environmental Protection
Agency for the type of discharge for which an NPDES Permit is being
sought and such additional information as the Agency may reasonably
require in order to determine that the discharge or proposed discharge will
be in compliance with applicable state and federal requirements.
2)
In addition to the above application forms, the Agency may require the
submission of plans and specifications for treatment works and summaries
of design criteria.
3)
Effluent toxicity monitoring
A)
In addition to the above application forms, the Agency may
require, pursuant to Section 39 of the Act, the installation, use,
maintenance and reporting of results from monitoring equipment
and methods, including biological monitoring. The Agency may
require, pursuant to Section 39 of the Act, effluent toxicity testing
to show compliance with 35 Ill. Adm. Code 302.621 and 302.630.
If this toxicity testing shows the effluent to be toxic, the Agency
may require pursuant to Section 39 of the Act further testing and
identification of the
toxicants
toxicant(s) pursuant to 35 Ill. Adm.
Code 302.210(a).
B)
The following POTWs shall provide the results of valid whole
effluent biological toxicity testing to the Agency:
i)
All POTWs with design influent flows equal to or greater
than one million gallons per day;
ii)
All POTWs with approved pretreatment programs or
POTWs required to develop a pretreatment program
pursuant to 35 Ill. Adm. Code 310.Subpart E;
C)
In addition to the POTWs listed in subsection
(a)(3)(B), the
Agency may require other POTWs to submit the result of toxicity
tests with their permit applications, based on consideration of the
following factors.
i)
The variability of the pollutants or pollutant parameters in
the POTW effluent (based on chemical-specific
information, the type of treatment facility, and types of
industrial contributors);

20
ii)
The dilution of the effluent in the receiving water (ratio of
effluent flow to receiving stream flow);
iii)
Existing controls on point or nonpoint sources, including
total maximum daily load calculations for the waterbody
segment and the relative contribution of the POTW;
iv)
Receiving stream characteristics, including possible or
known water quality impairment, and whether the POTW
discharges to a coastal water, one of the Great Lakes, or a
water designated as an outstanding natural resource; or
v)
Other considerations (including but not limited to the
history of toxic impact and compliance problems at the
POTW), which the Agency determines could cause or
contribute to adverse water quality impacts.
D)
The POTWs required under
subsection
subsections (a)(3)(B) or
(a)(3)(C) to conduct toxicity testing shall use the methods
prescribed at 35 Ill. Adm. Code 302.Subpart F. Such testing must
have been conducted since the later of the last NPDES permit
reissuance or permit modification pursuant to Section 309.182,
309.183 or 309.184 for any of the reasons listed at 40 CFR
122.62(a) (1994),
as amended at 60 Fed. Reg. 33926 effective June
29, 1995, herein incorporated by reference (including no later
amendments or editions).
4)
All POTWs with approved pretreatment programs shall provide the
following information to the Agency: a written technical evaluation of the
need to revise local limits pursuant to 35 Ill. Adm. Code 310.210.
BOARD NOTE: Subsections (a)(3)(B) through (a)(4) are derived from 40
CFR 122.21(j) (1994).
b)
Animal Waste Facilities
An applicant for an NPDES Permit in connection with the operation of an animal
waste facility shall complete, sign, and submit an NPDES application in
accordance with the provisions of 35 Ill. Adm. Code: Subtitle E, Chapter I.
c)
Mining Activities
1)
If, as defined by 35 Ill. Adm. Code 402.101, mining activities are to be
carried out on a facility for which an NPDES Permit is held or required,
the applicant must submit a permit application as required by 35 Ill. Adm.
Code 403.103, 403.104 and 405.104. If the facility will have a discharge

21
other than a mine discharge or non-point source mine discharge as defined
by 35 Ill. Adm. Code 402.101, the applicant shall also submit an NPDES
Permit application in accordance with Section 309.223 on forms supplied
by the Agency.
2)
As provided by 35 Ill. Adm. Code 403.101, except to the extent
contradicted in 35 Ill. Adm. Code: Subtitle D, Chapter I, the rules
contained in this Subpart apply only to 35 Ill. Adm. Code: Subtitle D,
Chapter I NPDES Permits.
3)
As provided by 35 Ill. Adm. Code 406.100, except to the extent provided
in 35 Ill. Adm. Code: Subtitle D, Chapter I, the effluent and water quality
standards of 35 Ill. Adm. Code 302, 303 and
304 are inapplicable to mine
discharges and non-point source mine discharges.
d)
New Discharges
Any person whose discharge will begin after the effective date of this Subpart A
or any person having an NPDES Permit issued by the U.S. Environmental
Protection Agency for an existing discharge which will substantially change in
nature, or increase in volume or frequency, must apply for an NPDES Permit
either:
1)
No later than 180 days in advance of the date on which such NPDES
Permit will be required; or
2)
In sufficient time prior to the anticipated commencement of the discharge
to insure compliance with the requirements of Section 306 of the Clean
Water Act (CWA) (33
USC
U.S.C. 1251 et seq), or with any other
applicable water quality standards and applicable effluent standards and
limitations.
e)
Signatures
An application submitted by a corporation shall be signed by a principal executive
officer of at least the level of vice president, or his duly authorized representative,
if such representative is responsible for the overall operation of the facility from
which the discharge described in the application form originates. In the case of a
partnership or a sole proprietorship, the application shall be signed by a general
partner or the proprietor, respectively. In the case of a publicly owned facility,
the application shall be signed by either the principal executive officer, ranking
elected official, or other duly authorized employee.
(Source: Amended at 32 Ill. Reg. __________, effective __________)

 
22
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE D: MINE RELATED WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 405
STATE AND NPDES PERMITS
Section
405.100
Preamble
405.101
Special Conditions: Agency Guidance Document
405.102
Standard for Permit Issuance or Certification
405.103
Permit Modification When New Regulations are Adopted
405.104
Permit Applications
405.105
Surface Drainage Control
405.106
Refuse Disposal
405.107
Experimental Permits for Refuse Disposal
405.108
Permit for Use of Acid-producing Mine Refuse
405.109
Abandonment Plan
405.110
Cessation, Suspension or Abandonment
405.111
Emergency Procedures To Control Pollution
405.112
Mine Entrances
405.113
Permit Area
405.APPENDIX A
References to Previous Rules
AUTHORITY: Implementing Sections 12 and 13 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/12, 13, and 27 (2006)].
SOURCE: Adopted in R76-20, R77-10, 39 PCB 196, at 4 Ill. Reg. 34, p. 164, effective August 7,
1980; codified at 5 Ill. Reg. 8527; amended in R83-6A at 8 Ill. Reg. 13267, effective July 16,
1984; amended in R07-9 at 32 Ill. Reg. __________, effective __________.
Section 405.109
Abandonment Plan
a)
A state or NPDES permit shall include an abandonment plan as a condition.
b)
An abandonment plan shall be incorporated into the permit by reference if it:
1)
Includes a time schedule establishing that the abandonment plan will be
executed and completed within a reasonable time after abandonment
considering any potential adverse impact on the environment pending
completion of the plan and the amount of time required to carry out the
steps in the plan; one year is assumed to be a reasonable time unless the
operator demonstrates that a longer time is reasonable; and
2)
Shows that the mine related facilities and mining activities will be
abandoned so as not to cause a violation of the Act or this Chapter
.
;

 
23
A)
If the plan includes a discharge which will remain after
abandonment which will not meet the requirements of 35 Ill. Adm.
Code 406.202, and if the permit included water quality-based
conditions under 35 Ill. Adm. Code 406.203 during active
mining, the discharge shall be deemed to meet 35 Ill. Adm. Code
406.202 with respect to total dissolved solids, chloride, sulfate,
iron and manganese if it will meet the requirements of 35 Ill.
Adm. Code 406.106 and 406.203(c)(1) and (c)(2); or
B)
If the plan includes impoundments which will remain after
abandonment and which will not meet the water quality standards
of 35 Ill. Adm. Code 302.204 or 302.208, with respect to total
dissolved solids, chloride, sulfate, iron, manganese and pH, such
fact shall not prevent approval of the plan if the impoundment will
meet the requirements of 35 Ill. Adm. Code 406.106 and
406.203(c)(1) and (c)(2).
c)
If the abandonment plan does not meet the standard of paragraph
subsection (b)
the Agency may either deny the permit or issue it with an abandonment plan
modified by conditions subject to Section 405.101.
d)
The time limit provided by paragraph
subsection (b)(1) is inapplicable to
abandonment plans for surface coal mines which are approved as reclamation
plans under the Surface Coal Mining Land Conservation and Reclamation Act,
[225 ILCS 720]
(Ill. Rev. Stat. 1983, ch. 96 1/2, par. 7902.03).
e)
Any abandonment plan constituting a substantial change from the permitted
abandonment plan is a revised abandonment plan.
f)
A permittee shall apply for a new or revised or supplemental NPDES or State
state
permit prior to implementation of a revised abandonment plan within the
time limits provided by 35 Ill. Adm. Code 403.104(c).
g)
An abandonment plan incorporated into a permit pursuant to showing under 35
Ill. Adm. Code 406.203 shall include conditions pursuant to 35 Ill. Adm. Code
406.203(e)(1) and (e)(2).
(Source: Amended at 32 Ill. Reg. ___________, effective _________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE D: MINE RELATED WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 406

 
24
MINE WASTE EFFLUENT AND WATER QUALITY STANDARDS
SUBPART A: EFFLUENT STANDARDS
Section
406.100
Preamble
406.101
Averaging
406.102
Sampling, Reporting and Monitoring
406.103
Background Concentrations
406.104
Dilution
406.105
Commingling of Waste Streams
406.106
Effluent Standards for Mine Discharges
406.107
Offensive Discharges
406.108
Non-Point Source Mine Discharges
406.109
Effluent Standards for Coal Mine Discharge from Reclamation Areas
406.110
Alternate Effluent Standards for Coal Mine Discharges During Precipitation
Events
SUBPART B: WATER QUALITY STANDARDS
Section
406.201
Temporary Exemption from Section 406.105 (Repealed)
406.202
Violation of Water Quality Standards
406.203
TDS Related Permit Conditions
(Repealed)
406.204
Good Mining Practices
406.205
Contact with Disturbed Areas
406.206
Retention and Control of Exposed Waters
406.207
Control of Discharge Waters
406.208
Unconventional Practices
406.209
Expiration of Former Exemptions (Repealed)
406.APPENDIX A
References to Previous Rules
AUTHORITY: Implementing Sections 12 and 13 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/12, 13 and 27].
SOURCE: Adopted in R76-20, R77-10, 39 PCB 196, at 4 Ill. Reg. 34, p. 164, effective August 7,
1980; codified at 5 Ill. Reg. 8527; emergency amendment in R83-6B at 7 Ill. Reg. 8386,
effective July 5, 1983, for a maximum of 150 days; amended in R83-6B at 7 Ill. Reg. 14510,
effective October 19, 1983; amended in R83-6A at 8 Ill. Reg. 13239, effective July 16, 1984;
amended in R84-29 at 11 Ill. Reg. 12899, effective July 27, 1987; amended in R07-9 at 32 Ill.
Reg. _________, effective __________.
SUBPART A: EFFLUENT STANDARDS
Section 406.100
Preamble

 
25
a)
Part 406 applies to mine discharges and non-point source mine discharges as
defined by Section 402.101.
b)
Other discharges, including sanitary sewers, are regulated under Subtitle C,
Chapter I: Water Pollution.
c)
A facility which has another discharge will be subject to both Subtitle C and
Subtitle D. Subtitle D governs mining activities, including mine discharges and
non-point source mine discharges. Subtitle C governs other discharges.
d)
Except to the extent provided in this Part 406, Part
Parts 302, 303 and 304 of
subtitle C is
are inapplicable to mine discharges and non-point source mine
discharges.
(Source: Amended at 32 Ill. Reg. ___________, effective _____________)
SUBPART B: WATER QUALITY STANDARDS
Section 406.203
TDS Related Permit Conditions (Repealed)
a)
This Section sets forth procedures by which water quality-based permit conditions
for total dissolved solids, chloride, sulfate, iron and manganese may be
established by the Agency for coal mine discharges. These procedures apply
instead of Section 406.202 whenever a permit applicant elects to proceed under
this Section. A permittee must comply with water quality-based permit
conditions for total dissolved solids, chloride, sulfate, iron and manganese
established pursuant to this Section instead of Section 406.202. Public hearings
may be required pursuant to 35 Ill. Adm. Code 309.115.
b)
An applicant may elect to proceed under this Section by providing the required
information as part of a new or renewed or supplemental state or NPDES permit
application.
c)
The Agency shall establish permit conditions under this Section if all of the
following conditions are met:
1)
The applicant proves to the Agency that the discharge will not cause an
adverse effect on the environment in and around the receiving stream, by
either:
A)
Demonstrating that the discharge will contain a
concentration less than or equal to 3500 mg/l sulfate and 1000 mg/l
chloride; or,
B)
Through actual stream studies.

26
2)
The applicant proves to the Agency that the discharge will not adversely
affect any public water supply; and
3)
The applicant proves to the Agency that it is utilizing good mining
practices designed to minimize discharge of total dissolved solids,
chloride, sulfate iron and manganese.
d)
The Agency may promulgate under 35 Ill. Adm. Code 405.101(c) a code of good
mining practices consistent with the definition in Section 406.204. Compliance
with the code of good mining practices shall be prima facie evidence that the
applicant is utilizing good mining practices within the meaning of paragraph
(c)(3).
e)
Whenever the Agency issues a permit based on this Section, it shall include such
conditions as may be necessary to ensure that:
1)
There is no adverse effect on the environment in and around the receiving
stream;
2)
The discharge does not adversely affect any public water supply; and
3)
The permittee utilizes good mining practices designed to minimize
discharge of total dissolved solids, chloride, sulfate, iron and manganese.
f)
Whenever the Agency issues a permit pursuant to this Section, if may include as a
condition a requirement that the permittee submit to the Agency effluent data for
total dissolved solids, chloride, sulfate, iron and manganese.
(Source: Repealed at 32 Ill. Reg. ________, effective ____________)
Section 406.209
Expiration of Former Exemptions (Repealed)
a)
Exemptions from the water quality standards granted prior to the effective date of
Section 406.203 shall continue until any of the following events occurs:
1)
Any State or NPDES permit for the facility expires, or is revoked,
renewed or reissued;
2)
Any State or NPDES permit for the facility is modified, unless the Agency
expressly continues the exemption pending review pursuant to paragraph
(b);
3)
An application period set pursuant to paragraph (b) expires with no
application having been received;
4)
The Agency grants or denies a permit under Section 406.203; or

 
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5)
January 1, 1987, the final date for continuation of former exemptions.
b)
The Agency may require applications for review pursuant to Section 406.203 by
notifying individual permittees and setting a date for application not less than 15
months after the date notice is given.
c)
If an appeal to the Board is filed, exemptions continue until the Board enters a
final order disposing of the appeal.
(Source: Repealed at 32 Ill. Reg. ________, effective ____________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE D: MINE RELATED WATER POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
PART 407
COMPLIANCE AND EFFECTIVE DATES (REPEALED)
Section
407.101
Effective Date
407.102
Applications from Holders of Outstanding Permits
407.103
Expiration of Outstanding Permits
407.104
Abandonment Plan for Existing Permits
APPENDIX A References to Previous Rules
AUTHORITY: Authorized by Section 27 and implementing Sections 12 and 13 and authorized
by Section 27 of the Illinois Environmental Protection Act (Ill. Rev. Stat., ch. 111 1/2, pars.
1012, 1013 and 1027) unless otherwise noted.
SOURCE: Adopted at 4 Ill. Reg. 34, p. 164, effective August 7, 1980; codified at 5 Ill. Reg. 34,
p. 8527, effective August 10, 1981; Repealed in R07-9 at 31 Ill. Reg. _______, effective
_______.
Section 407.101
Effective Date
This Chapter is effective upon filing with the Secretary of State.
Section 407.102 Applications from Holders of Outstanding Permits
a)
A holder of an outstanding operating permit under the old Chapter 4 may apply
for a state or NPDES permit at any time.
b)
The Agency may by notification require a holder of an outstanding operating
permit to apply for a state or NPDES permit.

 
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c)
Notification shall contain a date, not less than 180 days after notification, by
which date an application must be received by the Agency.
Section 407.103
Expiration of Outstanding Permits
Compliance with the provisions of this Chapter is required on the effective date except that
immediate compliance with the permit requirement of Section 404.101 is not required of holders
of outstanding permits for mines opened prior to the effective date of this Subtitle D, Chapter I.
For such facilities, compliance with Section 404.101 is required upon expiration of the
outstanding operating permit. Such permits shall expire upon the occurrence of any of the
following conditions, whichever occurs first:
a)
The lapse of three years after the effective date of this Chapter; or
b)
The expiration of any NPDES permit held by the permittee for the facility; or
c)
Issuance of a permit for the facility pursuant to Section 403.102 or Section
404.101; or
d)
The lapse of an application period fixed pursuant to Section 407.102(c) if an
application is not received by the date given in the notification.
Section 407.104
Abandonment Plan for Existing Permits
The requirement of a permit to abandon contained in Rule 502 of old Chapter 4, effective May
23, 1972 shall continue to apply to operators of mines opened prior to the effective date of this
Subtitle D, Chapter I, until such time as such operator shall have been issued under this Subtitle
D, Chapter I a valid permit containing an abandonment plan.
Section 407.APPENDIX A
REFERENCES TO PREVIOUS RULES
The following table is provided to aid in referencing old Board rule numbers to section numbers
pursuant to codification.
Chapter 4, Mine Related Pollution Part VII,
Compliance and Effective Dates
35 Ill. Admin. Code Part 407
Rule 701
Section 407.101
Rule 702
Section 407.102
Rule 703
Section 407.103
Rule 704
Section 407.104
Section 41(a) of the Environmental Protection Act provides that final Board orders may
be appealed directly to the Illinois Appellate Court within 35 days after the Board serves the

29
order. 415 ILCS 5/41(a) (2006);
see also
35 Ill. Adm. Code 101.300(d)(2), 101.906, 102.706.
Illinois Supreme Court Rule 335 establishes filing requirements that apply when the Illinois
Appellate Court, by statute, directly reviews administrative orders. 172 Ill. 2d R. 335. The
Board’s procedural rules provide that motions for the Board to reconsider or modify its final
orders may be filed with the Board within 35 days after the order is received. 35 Ill. Adm. Code
101.520;
see also
35 Ill. Adm. Code 101.902, 102.700, 102.702.
I, John T. Therriault, Assistant Clerk of the Illinois Pollution Control Board, certify that
the Board adopted the above opinion and order on June 19, 2008, by a vote of 4-0.
___________________________________
John T. Therriault, Assistant Clerk
Illinois Pollution Control Board

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