TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.101 PURPOSE, SCOPE AND APPLICATION
Section 355.101 Purpose,
Scope and Application
a) This Part contains procedures to determine water quality based
effluent limits for ammonia nitrogen (as N) (ammonia nitrogen WQBELs) that are
necessary to prevent waters of the State from exceeding water quality standards
pursuant to 40 CFR 122.44(d)(1) and 35 Ill. Adm. Code 309.141(d)(3). Ammonia
nitrogen WQBELs must be sufficient to ensure compliance with the water quality
standards for ammonia nitrogen found in the Illinois Pollution Control Board
(IPCB) regulations at 35 Ill. Adm. Code 302.202, 302.212 and 304.122.
b) Ammonia nitrogen WQBELs are applicable to the general use
waters of the State.
c) There shall be an opportunity for compliance with the ammonia
nitrogen water quality standards as provided by the IPCB regulations through
application of allowed mixing, mixing zones and zones of initial dilution at 35
Ill. Adm. Code 302.102.
d) In addition to water quality based effluent limits, the
discharge of ammonia nitrogen from a facility may be limited based on other
provisions in the Environmental Protection Act [415 ILCS 5] (Act) and
regulations adopted thereunder or the Federal Water Pollution Control Act, 33
USC 1251-1387 (FWPCA) and regulations adopted thereunder.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
 | TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.103 DEFINITIONS
Section 355.103 Definitions
All terms in this Part shall
have the meanings set forth in the Environmental Protection Act and in the IPCB
regulations under 35 Ill. Adm. Code 301 and 302 except, for purposes of this
Part, the following definitions apply:
"AWQMN"
or "Ambient Water Quality Monitoring Network" means the network of
sampling stations maintained by the Agency and located on streams throughout
the State.
"Agency"
means the Illinois Environmental Protection Agency.
"DMR"
means discharge monitoring report.
"IPCB"
means the Illinois Pollution Control Board.
"Kjeldahl"
means the total of organic nitrogen and ammonia nitrogen.
"NPDES" means National Pollutant Discharge
Elimination System.
"PEL"
or "Preliminary Effluent Limitation" is an estimate of an allowable
discharge concentration taking into consideration allowed mixing or dilution.
"PEQ"
or "Projected Effluent Quality" is the maximum contaminant
concentration estimated to be discharged by a facility or activity taking into
account statistical analysis of the discharge or activity.
"Reasonable
Potential Analysis" or "Reasonable Potential to Exceed" means
the procedure to predict whether an existing or future discharge may cause or
contribute to a violation of water quality standards, criteria or values.
"Summer"
means the months of March through October, inclusive, when early life stages of
sensitive organisms are assumed to be present. If early life stages of
sensitive organisms are present in a water body during other months, these
months are included as summer months.
"USEPA"
means the United States Environmental Protection Agency.
"USGS"
means the United States Geological Survey.
"WQBEL"
or "Water Quality Based Effluent Limit" means an NPDES permit limit
that ensures that applicable water quality standards and criteria are met in
waters where such standards and criteria apply.
"Winter"
means the months of November through February, inclusive, when early life
stages of sensitive organisms are assumed to be absent. If early life stages
of organisms for a water body exist in any of these months, these months will
be considered summer months.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
SUBPART B: AMMONIA NITROGEN (as N) WATER QUALITY STANDARDS AND WQBELs
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.201 INTRODUCTION
Section 355.201 Introduction
The need for an ammonia nitrogen
(as N) WQBEL is based on the reasonable potential of a discharge to cause or
contribute to a violation of the applicable ammonia nitrogen water quality
standard. During the NPDES permit review process, the Agency shall conduct an
analysis of the reasonable potential for ammonia to exceed or contribute to
excursions above the ammonia nitrogen water quality standard that may occur in
the receiving water. This analysis shall be conducted for both acute and
chronic water quality standards for periods when early life stages are absent (winter,
see 35 Ill. Adm. Code 302.212(b)(2)(B)) and periods when early life stages are
present (summer, see 35 Ill. Adm. Code 302.212(b)(2)(A)). The Agency may
conduct this analysis for the subchronic standard when daily effluent ammonia
samples are collected. The Agency may subdivide summer or winter periods into
quarterly or monthly segments with analysis of reasonable potential
corresponding to those smaller time segments in individual permit applications.
a) The first step in the reasonable potential analysis is to calculate
the Projected Effluent Quality (PEQ), as provided in Section 355.205. The PEQ
is then compared to the total ammonia nitrogen water quality standard as
provided in Section 355.203. If the PEQ is less than or equal to the total
ammonia nitrogen water quality standard as provided in Section 355.203, then no
reasonable potential to exceed the standard exists and no effluent limitation
will be established in the permit unless otherwise warranted under subsection
(c) of this Section.
b) If the PEQ exceeds the applicable total ammonia nitrogen water
quality standard as provided in Section 355.203, the analysis shall proceed to
the determination of a mixing allowance as provided in Section 355.207.
c) If the wastewater prior to treatment contains total Kjeldahl
nitrogen at levels in which a reasonable potential to exceed total ammonia
nitrogen water quality standards as provided in Section 355.203 exists, then
the discharge of ammonia nitrogen shall be limited in the NPDES permit by an
ammonia nitrogen WQBEL. Reasonable potential to exceed water quality standards
will be determined consistent with Sections 355.203 through 355.211 of this
Part. Even if there appears to be no potential to exceed the water quality
standards based on the effluent quality analysis in subsection (a) or (b), an
ammonia nitrogen WQBEL shall be established.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.203 CALCULATION OF TOTAL AMMONIA NITROGEN NUMERIC WATER QUALITY STANDARDS REGARDING NPDES PERMIT LIMITS
Section 355.203 Calculation of
Total Ammonia Nitrogen Numeric Water Quality Standards Regarding NPDES
Permit Limits
Temperature and pH affect the
numeric total ammonia nitrogen water quality standard. Both stream temperature
and pH can be expected to be different than discharge temperature and pH;
therefore, the calculation of the water quality standard and permit limits will
be based on conditions expected to exist downstream of the discharge.
a) Where receiving stream specific data is available, that data
shall be the basis for the selection of temperature and pH values to be used in
calculating total ammonia nitrogen standards upon which an NPDES permit limit
will be based. A data collection station downstream of the discharge at or
beyond the point where complete mixing has occurred is preferred. When receiving
stream specific data is not available, data from the closest representative
Agency water quality monitoring station during the most recent five years will
be used in this conversion formula. The temperature will be set at the 75th
percentile (75 percent of the values are less than) from data collected during
the period for which the water quality standard is being calculated. The pH
value will be set at the 75th percentile (75 percent of the values
are less than) from data collected during the period for which the water
quality standard is being calculated. If the 75th percentile pH
value results in a permit limit for chronic exposure conditions (monthly
average ammonia permit limit) less than 1.5 mg/L for the summer period or 4.0
mg/L for the winter period, the values will be recalculated based on a 50th
percentile pH value (half the values are less than). The permit limit will
then be set at the value derived with a 50th percentile pH as long
as that value does not exceed 1.5 mg/L for the summer period and 4.0 mg/L for the
winter period. If a 50th percentile pH value would allow a higher
summer limit than 1.5 mg/L, the limit will be set at 1.5 mg/L. If a 50th
percentile pH would allow a higher winter limit than 4.0 mg/L, the winter limit
would be set at 4.0 mg/L. Limits based in the subchronic ammonia standard will
be 2.5 times the chronic limit established by the above procedure.
1) Unless a different configuration is found by the Agency to be
appropriate two permit limits for summer will be calculated separately using pH
and temperature data from the following periods:
A) March, April, May, September and October.
B) June, July and August.
2) Unless a different configuration is found by the Agency to be
appropriate, permit limits for winter will be calculated using pH and
temperature data from November, December, January and February.
b) When sufficient stream specific information is available with
simultaneous measurements of total ammonia, pH, and temperature, a relationship
reflecting the dynamic interaction between pH, temperature and ammonia
equilibrium may be developed instead of the approach presented in subsection
(a).
c) The above calculations allow acute, chronic and subchronic
ammonia nitrogen water quality standards to be applied as daily maximum,
monthly average and weekly average permit limits, respectively.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.205 ESTIMATION OF PROJECTED EFFLUENT QUALITY
Section 355.205 Estimation
of Projected Effluent Quality
The Projected Effluent Quality
(PEQ) is the estimation of the maximum expected effluent concentration.
Individual PEQs shall be estimated for all summer and winter acute, chronic
and subchronic exposure periods.
a) The PEQ shall be derived from representative facility specific
data to reflect a 95 percent confidence level for the 95th
percentile value. These data will be presumed to adhere to a lognormal
distribution pattern with a coefficient of variation of 0.6 unless the
facility's effluent data demonstrates a different distribution pattern. If
facility specific data in excess of 10 data values is available, a facility
specific coefficient of variation that is the ratio of the standard deviation
to the arithmetic average may be calculated. The PEQ is derived as the upper
bound of a 95 percent confidence bracket around the 95th percentile
value through a multiplier from the following table applied to the maximum
value in the data set that has its quality assured consistent with subsection
(f).
PEQ = (maximum
data point)(statistical multiplier)
Coefficient of Variation
|
No.
of Samples
|
0.1
|
0.2
|
0.3
|
0.4
|
0.5
|
0.6
|
0.7
|
|
|
|
|
|
|
|
|
|
|
1
|
1.4
|
1.9
|
2.6
|
3.6
|
4.7
|
6.2
|
8.0
|
|
2
|
1.3
|
1.6
|
2.0
|
2.5
|
3.1
|
3.8
|
4.6
|
|
3
|
1.2
|
1.5
|
1.8
|
2.1
|
2.5
|
3.0
|
3.5
|
|
4
|
1.2
|
1.4
|
1.7
|
1.9
|
2.2
|
2.6
|
2.9
|
|
5
|
1.2
|
1.4
|
1.6
|
1.8
|
2.1
|
2.3
|
2.6
|
|
6
|
1.1
|
1.3
|
1.5
|
1.7
|
1.9
|
2.1
|
2.4
|
|
7
|
1.1
|
1.3
|
1.4
|
1.6
|
1.8
|
2.0
|
2.2
|
|
8
|
1.1
|
1.3
|
1.4
|
1.6
|
1.7
|
1.9
|
2.1
|
|
9
|
1.1
|
1.2
|
1.4
|
1.5
|
1.7
|
1.8
|
2.0
|
|
10
|
1.1
|
1.2
|
1.3
|
1.5
|
1.6
|
1.7
|
1.9
|
|
11
|
1.1
|
1.2
|
1.3
|
1.4
|
1.6
|
1.7
|
1.8
|
|
12
|
1.1
|
1.2
|
1.3
|
1.4
|
1.5
|
1.6
|
1.7
|
|
13
|
1.1
|
1.2
|
1.3
|
1.4
|
1.5
|
1.6
|
1.7
|
|
14
|
1.1
|
1.2
|
1.3
|
1.4
|
1.4
|
1.5
|
1.6
|
|
15
|
1.1
|
1.2
|
1.2
|
1.3
|
1.4
|
1.5
|
1.6
|
|
16
|
1.1
|
1.1
|
1.2
|
1.3
|
1.4
|
1.5
|
1.6
|
|
17
|
1.1
|
1.1
|
1.2
|
1.3
|
1.4
|
1.4
|
1.5
|
|
18
|
1.1
|
1.1
|
1.2
|
1.3
|
1.3
|
1.4
|
1.5
|
|
19
|
1.1
|
1.1
|
1.2
|
1.3
|
1.3
|
1.4
|
1.5
|
|
20
|
1.1
|
1.1
|
1.2
|
1.2
|
1.3
|
1.4
|
1.4
|
|
30
|
1.0
|
1.1
|
1.1
|
1.1
|
1.2
|
1.2
|
1.2
|
|
40
|
1.0
|
1.0
|
1.1
|
1.1
|
1.1
|
1.1
|
1.1
|
|
50
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
|
60
or greater
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
Coefficient of Variation
|
No.
of Samples
|
0.8
|
0.9
|
1.0
|
1.1
|
1.2
|
1.3
|
|
|
|
|
|
|
|
|
|
1
|
10.1
|
12.6
|
15.5
|
18.7
|
22.3
|
26.4
|
|
2
|
5.4
|
6.4
|
7.4
|
8.5
|
9.7
|
10.9
|
|
3
|
4.0
|
4.6
|
5.2
|
5.8
|
6.5
|
7.2
|
|
4
|
3.3
|
3.7
|
4.2
|
4.6
|
5.0
|
5.5
|
|
5
|
2.9
|
3.2
|
3.6
|
3.9
|
4.2
|
4.5
|
|
6
|
2.6
|
2.9
|
3.1
|
3.4
|
3.7
|
3.9
|
|
7
|
2.4
|
2.6
|
2.8
|
3.1
|
3.3
|
3.5
|
|
8
|
2.3
|
2.4
|
2.6
|
2.8
|
3.0
|
3.2
|
|
9
|
2.1
|
2.3
|
2.4
|
2.6
|
2.8
|
2.9
|
|
10
|
2.0
|
2.2
|
2.3
|
2.4
|
2.6
|
2.7
|
|
11
|
1.9
|
2.1
|
2.2
|
2.3
|
2.4
|
2.5
|
|
12
|
1.9
|
2.0
|
2.1
|
2.2
|
2.3
|
2.4
|
|
13
|
1.8
|
1.9
|
2.0
|
2.1
|
2.2
|
2.3
|
|
14
|
1.7
|
1.8
|
1.9
|
2.0
|
2.1
|
2.2
|
|
15
|
1.7
|
1.8
|
1.8
|
1.9
|
2.0
|
2.1
|
|
16
|
1.6
|
1.7
|
1.8
|
1.9
|
1.9
|
2.0
|
|
17
|
1.6
|
1.7
|
1.7
|
1.8
|
1.9
|
1.9
|
|
18
|
1.6
|
1.6
|
1.7
|
1.7
|
1.8
|
1.9
|
|
19
|
1.5
|
1.6
|
1.6
|
1.7
|
1.8
|
1.8
|
|
20
|
1.5
|
1.5
|
1.6
|
1.6
|
1.7
|
1.7
|
|
30
|
1.3
|
1.3
|
1.3
|
1.3
|
1.4
|
1.4
|
|
40
|
1.1
|
1.2
|
1.2
|
1.2
|
1.2
|
1.2
|
|
50
|
1.1
|
1.1
|
1.1
|
1.1
|
1.1
|
1.1
|
|
60
or greater
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
1.0
|
|
|
|
|
|
|
|
|
1) If the PEQ determined in this Section is less than or equal to
the applicable acute water quality standard, there is no reasonable potential
and no WQBEL will be established in the permit unless otherwise warranted under
Section 355.201(c).
2) If the PEQ as determined in this Section exceeds the
applicable acute water quality standard but does not exceed the PEL determined
through Section 355.209, there is no reasonable potential and no WQBEL will be
established unless otherwise warranted under Section 355.201(c).
b) The Agency shall compare calculated PEQ values derived from
monthly average effluent data, when available, with the applicable chronic
water quality standard to evaluate the need for monthly average WQBEL using the
same method described in subsection (a) of this Section. If a monthly average
WQBEL is included in an NPDES permit, the Agency will also include a daily
maximum WQBEL to enforce the acute water quality standard.
c) The Agency shall compare calculated PEQ values derived from
the highest weekly average total ammonia effluent data, when available, with
the applicable subchronic water quality standards to evaluate the need for a
weekly average WQBEL using the same method described in subsection (a) of this
Section.
d) The Agency may apply other scientifically defensible
statistical methods for calculating PEQ at the 95 percent upper confidence
level for use in the reasonable potential analysis. For new or existing
discharges where no prior operating record is available, PEQ shall be estimated
based on knowledge of the tributary wastewater characteristics and treatment
facility capabilities. For existing sources where the PEQ for the term of the
permit cannot be accurately characterized by historical performance data as
specified in subsection (a) of this Section due to significant changes in
tributary loading, plant operating parameters or other factors affecting
treatment efficiency during the term covered by the permit, a PEQ
representative of the future permit term may be estimated by analysis of the
historical data consistent with subsection (a) with adjustment of the
historical value to reflect the change expected from the anticipated loading or
operating changes.
e) Regardless of the statistical procedure used, if the PEQ for
ammonia nitrogen (as N) is less than or equal to the water quality standard,
the Agency shall deem the discharge not to have a reasonable potential to
exceed and a WQBEL shall not be required unless otherwise required under
Section 355.201.
f) Data Requirements
The derivation of PEQ is based on the effluent quality
demonstrated by self-monitoring data as required by the NPDES permit or
Agency-generated data, such as effluent sampling or facility-related stream
studies. Effluent data used in the derivation of PEQ shall be representative
of the concentration and variability of ammonia nitrogen in the discharge
anticipated for the applicable period of the NPDES permit. Data shall be
collected and analyzed in accordance with USEPA or Agency approved sampling and
analytical methods (40 CFR 136). The following criteria shall be followed in
data selection:
1) the most recent five years of data shall be used unless the
Agency determines that an alternative period better represents the time period
for which effluent quality is being projected. Such alternative time periods
may include, but are not limited to, shorter periods that reflect changed
discharge characteristics resulting from changes in manufacturing activities or
wastewater treatment systems; and
2) data anomalies resulting from collection, analysis or
recording errors or atypical plant operating conditions may be eliminated from
the data.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.207 MIXING ALLOWANCE
Section 355.207 Mixing
Allowance
If the PEQ for ammonia nitrogen
(as N) is greater than the water quality standard, the Agency shall assess the
level of treatment being provided by the discharger. If the discharger is
providing (or will be providing) a level of treatment consistent with the best
degree of treatment required by 35 Ill. Adm. Code 304.102(a), the PEQ derived
under Section 355.205 shall be compared to the PEL determined by applying
allowed dilution to the discharge consistent with Section 355.209.
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.209 CALCULATION OF PRELIMINARY EFFLUENT LIMITATION
Section 355.209 Calculation
of Preliminary Effluent Limitation
a) The preliminary effluent limitation (PEL) is calculated in a
mass balance approach reflecting allowed dilution as referenced in Section
355.207:
WQS = [(Qe)(PEL)
+ (Qd)(Cd)]/(Qe + Qd)
or
PEL = [WQS(Qe
+ Qd) - (Qd)(Cd)]/Qe
where:
|
WQS
|
=
|
applicable total ammonia
nitrogen water quality standard pursuant to Section 355.203
|
|
Qe
|
=
|
effluent flow rate
|
|
Qd
|
=
|
allowed mixing flow rate as
determined in accordance with the provisions of 35 Ill. Adm. Code 302.212(c)
|
|
Cd
|
=
|
background ammonia nitrogen
(as N) concentration in mixing water
|
Effluent flow
rate shall be selected to coincide with the critical stream flow condition used
to quantify allowed dilution. Typically this will be estimated to be the
average of the lowest three months average flow rate during the previous year
for domestic wastewater sources. For industrial and other wastewater sources
where flow rates are not directly correlated to climatic patterns, Qe
will be estimated as the average of the highest three monthly average flow
rates. With either approach, Qe shall be modified when future flows
are expected to vary significantly from historical data.
b) The reasonable potential analysis shall be completed
separately for the winter and summer periods and for acute, chronic and
subchronic water quality standards. The Agency may subdivide summer or winter
periods into quarterly or monthly segments with analysis of reasonable
potential corresponding to those smaller time segments in individual permit
applications. WQBELs based on the acute water quality standard shall be
expressed as a daily maximum. WQBELs based on the chronic water quality
standard shall be expressed as a monthly average. WQBELs based on the
subchronic WQS shall be expressed as a weekly average.
(Source: Amended at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.211 SUMMARY OF THE RESULTS FOR A REASONABLE POTENTIAL ANALYSIS AND THE DETERMINATION OF AMMONIA NITROGEN WQBELS
Section 355.211 Summary of
the Results for a Reasonable Potential Analysis and the Determination of
Ammonia Nitrogen WQBELs
a) If the PEQ determined in Section 355.205 is less than or equal
to the applicable water quality standard, there is no reasonable potential and
no WQBEL will be established in the permit unless otherwise warranted under
Section 355.201(c).
b) If the PEQ exceeds the applicable water quality standard but
does not exceed the PEL determined through Section 355.209, there is no
reasonable potential and no WQBEL shall be established unless otherwise
warranted under Section 355.201(c).
c) If the PEQ exceeds the PEL determined through Section 355.209,
there is reasonable potential to exceed the standard and the PEL shall be
established as the WQBEL.
d) If a WQBEL is warranted under Section 355.201(c), the WQBEL
shall be set at the PEL as determined through Section 355.209.
SUBPART C: EFFLUENT MODIFIED WATERS
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.301 INTRODUCTION (REPEALED)
Section 355.301 Introduction
(Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.303 EMW APPLICATION REQUIREMENTS (REPEALED)
Section 355.303 EMW
Application Requirements (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.305 EVALUATION OF EMW APPLICATIONS (REPEALED)
Section 355.305 Evaluation
of EMW Applications (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.307 DETERMINATION OF EMW DESIGNATION (REPEALED)
Section 355.307
Determination of EMW Designation (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.309 PROCEDURES FOR DELINEATING AN EMW (REPEALED)
Section 355.309 Procedures
for Delineating an EMW (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.311 AMMONIA NITROGEN DECAY EQUATION (REPEALED)
Section 355.311 Ammonia
Nitrogen Decay Equation (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.313 RESTRICTIONS APPLICABLE TO DISCHARGES WITH EMWS (REPEALED)
Section 355.313 Restrictions
Applicable to Discharges with EMWs (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
| TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE C: WATER POLLUTION
CHAPTER II: ENVIRONMENTAL PROTECTION AGENCY
PART 355
DETERMINATION OF AMMONIA NITROGEN WATER QUALITY
BASED EFFLUENT LIMITS FOR DISCHARGES TO GENERAL USE WATERS
SECTION 355.315 PUBLICATION OF EMWS (REPEALED)
Section 355.315 Publication
of EMWs (Repealed)
(Source: Repealed at 27 Ill.
Reg. 15774, effective September 25, 2003)
AUTHORITY: Implementing and authorized by Section 39 of the Illinois Environmental Protection Act [415 ILCS 5/39].
SOURCE: Adopted at 23 Ill. Reg. 7267, effective June 9, 1999; amended at 27 Ill. Reg. 15774, effective September 25, 2003.
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