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Page 1 of Part I

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Latitude: 35o 18' 56.247 N (GPS: NAD-83 CONUS) be reported on the full biomonitoring DMR as required under part II.A.4.a. of this permit. There shall be no discharge of any visible sheen of oil or globules of oil or grease.

     Permit No. OK0026051

     Page 1 of Part I

     AUTHORIZATION TO DISCHARGE UNDER THE

    OKLAHOMA POLLUTANT DISCHARGE ELIMINATION SYSTEM

PART I

In compliance with the Oklahoma Pollutant Discharge Elimination System Act (OPDES Act), Title 27A O.S. ? 2-

    6-201 et seq., and the rules of the State of Oklahoma Department of Environmental Quality (DEQ) adopted

    thereunder {See OAC 252:606}; the Federal Clean Water Act, Public Law 95-217 (33 U.S.C. 1251 et seq.),

    Section 402; and NPDES Regulations (40 CFR Parts 122, 124 and 403),

    Shawnee Municipal Authority Southside Wastewater Treatment Facility

    (State ID# S-20548)

    PO Box 1448

    Shawnee, Oklahoma 74802-1448

is hereby authorized to discharge treated wastewater from a facility located at approximately:

    SE/4, SE/4, NE/4, Section 19,

    Township 10 North, Range 4 East, I.M.

    Pottawatomie County, Oklahoma

to receiving water: North Canadian River at a point located approximately:

     oLatitude: 35 18' 56.247" N (GPS: NAD-83 CONUS) oLongitude: 96 54' 44.779" W (GPS: NAD-83 CONUS)

    Planning Segment No. 520510 (Water body ID # 520510000110_10)

in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts I,

    II, III, and IV hereof.

    This permit replaces and/or supersedes the permit issued on June 26, 2002. The issuance date of this permit is

    This permit shall become effective

    This permit and authorization to discharge shall expire at midnight

    For Oklahoma Department of Environmental Quality:

    __________________________________________ __________________________________________

    Carol Paden, P.E., Manager Jon L. Craig, Director

    Municipal Permits Section Water Quality Division

    Water Quality Division

     PERMIT NO. OK0026051

     Permit Part I- Page 2

    SECTION A. Effluent Limitations and Monitoring Requirements

    During the period beginning the effective date and lasting through date of expiration, the

    permittee is authorized to discharge treated wastewater in accordance with the following

    limitations:

1. Conventional and Nonconventional Pollutants (Outfall 001)

    Effluent Characteristics Discharge Limitations Monitoring Requirements

     Mass Concentration (mg/l)

    (lbs/d) Measurement Sample

     Frequency Type 30-day 30-day 7-day Average

    Average Average

     Biochemical Oxygen Demand - 5 Day 750.6 30.0 45.0 1/ week (BOD) [00310] 56-hour composite Total Suspended Solids (TSS) [00530] 750.6 30.0 45.0 2/ month

    bAmmonia (NH3-N) [00610] N/A Report N/A Quarterly

     aFecal Coliform [74055] May-September 200 400 2/ month (Geo.mean) (Daily Max) Grab

     Total Residual Chlorine c,dInstantaneous Maximum: No measurable Daily (TRC)[50060] May-September:

    a Coliforms are measured in organisms/100 ml. b Analyses shall be performed concurrently with all 24-hour composite samples collected for WET (Fathead minnow)

    testing. Results of the ammonia concurrent sample shall be reported on the full biomonitoring DMR as required under

    part II.A.4.a. of this permit. c No measurable is defined as less than 0.1 mg/l. d In lieu of indicated testing, if no chlorine is used for an entire reporting period, the permittee shall report a

     value of “zero” for the daily maximum and enter “No chlorine used this reporting period” in the comments

     section on the DMR for that reporting period.

     Year-round Requirements

    There shall be no discharge of floating solids or visible foam in other than trace amounts.

     There shall be no discharge of any visible sheen of oil or globules of oil or grease.

     The pH [STORET: 00400] shall not be less than 6.5 standard units nor greater than 9.0

     standard units at any time and shall be monitored daily by grab sample.

    Outfall is a 26" diameter pipe located approximately 4 feet southeast corner of the chlorine contact basin.

    Samples taken in compliance with the monitoring requirements are taken at the discharge from the

    southeast corner of the chlorine contact basin.

    Flow [STORET: 50050] (measured in million gallons per day) shall be monitored daily by totalized

    measurement and reported as a 30-day average and a daily maximum.

    2. a. Acute

     PERMIT NO. OK0026051

     Permit Part I- Page 3

Outfall TX1

     a. Whole Effluent Toxicity Reporting and Monitoring Requirements (Outfall TX1)

     During the period beginning the effective date of the permit and lasting through the expiration date, the

    permittee is authorized to discharge from Outfall TX1 (functionally identical to Outfall 001). The

    discharge consists of domestic and industrial wastewater. Such discharge shall be limited and monitored

    by the permittee as specified below.

     The permittee is encouraged to perform required biomonitoring activities as early in the reporting period

    as is practical so as to ensure sufficient time remains in the reporting period should retests/repeat tests

    be necessary.

     All laboratory analyses for the biomonitoring parameters specified in this permit must be performed by

    a laboratory certified by the Oklahoma Department of Environmental Quality for those parameters.

    Whole Effluent Toxicity Reporting and Monitoring Requirements-Fathead minnow

    (Outfall TX1)

    Reporting and Monitoring Effluent Characteristic aRequirements

    Critical 48-hour Testing Sample Test Parameter dDilution Min Frequency Type

    Pimephales promelas Pass/Fail Survival [TIM6C] Report (Fathead minnow), 48-hour 24-hr e Effluent Conc [TAM6C] Report LC 100% 1/quarter 50Testing acute LCcomp static renewal, 50Routine % Mortality at 100% Effluent [TJM6C] Report freshwater

    bRetest #1 [22415] Report As 24-hr crequired comp bRetest #2 [22416] Report Retesting

    a See Part II, Section A, Whole Effluent Toxicity Testing, for additional monitoring and reporting conditions. b Applies only to the Fathead minnow test species. c Monthly retesting required only if routine test for reporting period fails. Fill out ONLY these two retest

    parameters on the retest DMRs, do not change the original results, and put the correct submission date in the

    lower right hand corner of the DMR. d All acute WET testing shall use the dilution series specified in Part II, Section A, Item 1. e Results of retests conducted pursuant to prior test failure shall not be submitted on DMRs in lieu of routine test

    results (see Part II, Section A, Item 2.a).

    P. promelas (Fathead minnow) whole effluent toxicity reporting and monitoring requirements apply

    beginning ________________, and the first reporting period is _______________ to

    _______________.

    WET testing summary reports: Reports of all WET testing initiated, regardless of whether such

    tests are carried to completion, shall follow the requirements of Part II, Section A, Item 4.

    b. Concurrent Testing Provision for Acute WET Testing

    Concurrent analyses of total ammonia and pH are required for each individual effluent sample

    collected for acute WET testing or retesting of the Fathead minnow species. Reporting of

     PERMIT NO. OK0026051

     Permit Part I- Page 4

    concurrent testing results shall be in accordance with the following requirements. Results shall also

    be submitted in or concurrently with each WET test report.

    Concurrent Effluent Testing for Acute WET Tests Reporting Requirements

    Outfall TX1

    Concentration Monitoring Requirements

    Effluent Characteristic Daily Monthly Daily Monitoring Sample

    Min Avg Max Frequency Type

    a,bAmmonia, total (mg/l) bReport Report Report 1/quarter 24 hr comp [STORET 00610]

    Measured in each composite a,bpH (std units) Report N/A Report 1/quarter effluent sample, including static [STORET 00400] brenewals, just prior to first use a Report only those effluent samples collected for WET testing of the Fathead minnow species.

Samples collected for WET testing purposes, including static renewals, shall be of sufficient volume to allow

     for the required concurrent analyses in addition to the WET testing itself.

     Samples sent directly to a WET testing laboratory shall not undergo any preservation other than refrigeration to not

     more than 4º C prior to arrival and processing at the WET testing laboratory.

    b Two sets of samples for concurrent analyses are required for ammonia and pH:

Concurrent ammonia analyses must be performed on composite samples that are properly preserved and delivered

    directly to a state certified analytical laboratory. These results shall be included in the results for Outfall 001.

    A second concurrent analysis is required for the sample that is sent to the WET testing laboratory and for the table above.

Just prior to first use of each composite sample for WET testing purposes, the biomonitoring laboratory shall take

    an adequately-sized portion of each composite sample, acidify it in accordance with preservation requirements in 40

    CFR 136, and have it analyzed for total ammonia at a state certified laboratory. The pH measurement required for the above table must be taken just prior to the acidification step. These pH and ammonia readings should NOT be

    included in the results for Outfall 001.

c. Sampling Location

    Samples taken in compliance with the monitoring requirements specified above for Outfall TX1

    shall be taken at the following location: at the same location as for Outfall 001 (see Appendix for

    latitude/longitude and legal location).

    d. Whole Effluent Toxicity Reporting and Monitoring Requirements- Daphnia pulex

    (Outfall TX1)

     PERMIT NO. OK0026051

     Permit Part I- Page 5

    Reporting and Monitoring Effluent Characteristic Requirementsa

    Critical 48-hour Testing Sample Test Parameter ebDilution Min Frequency Type

    Pass/Fail Survival [TIM3D] Report Daphnia pulex,48-hour facute LC static renewal, 100% Effluent Conc [TAM3D]LC Report 1/quarter 24-hr comp Testing 5050freshwater Routine % Mortality at 100% Effluent [TJM3D] Report

    cRetest #1 [22415] Report As 24-hr comp frequired cRetest #2 [22416] Report Retesting

    a See Part II, Section B, Whole Effluent Toxicity Testing, for additional monitoring and reporting conditions. b See provision for monitoring frequency reduction after the first year (Part II, Section B, Item 5). c Applies only to the D. pulex test species. d Monthly retesting required only if routine test for reporting period fails. Fill out ONLY these two retest

    parameters on retest DMRs, do not change the original results, and put the current submission date in the lower

    right hand corner of the DMR. e All acute WET testing shall use the dilution series specified in Part II, Section B, Item 1. f Results of retests conducted pursuant to prior test failure shall not be submitted on DMRs in lieu of routine

     test results (see Part II, Section B, Item 2.a).

    D. pulex whole effluent toxicity reporting and monitoring requirements apply beginning -

    ________________, and the first reporting period is _______________ to _______________.

    WET testing summary reports: Reports of all WET testing initiated, regardless of whether such

    tests are carried to completion, shall follow the requirements of Part II, Section B, Item 4.

e. Sampling Location

    Samples taken in compliance with the monitoring requirements specified above for Outfall TX1

    shall be taken at the following location: at the same location as for Outfall 001 (see Appendix for

    latitude/longitude and legal location).

b. Chronic

Outfall TX1

     PERMIT NO. OK0026051

     Permit Part I- Page 6

a. Whole Effluent Toxicity Reporting and Monitoring Requirements (Outfall TXI)

    During the period beginning the effective date of the permit and lasting through the expiration

    date, the permittee is authorized to discharge from Outfall TX1 (functionally identical to Outfall

    001). The discharge consists of domestic and industrial wastewater. Such discharge shall be

    limited and monitored by the permittee as specified below.

    The permittee is encouraged to perform required biomonitoring activities as early in the

    reporting period as is practical so as to ensure sufficient time remains in the reporting period

    should retests/repeat tests be necessary.

    Whole Effluent Toxicity Reporting and Monitoring Requirements- Fathead minnow

    (Outfall TX1)

    Reporting and Monitoring Effluent Characteristic a Requirements

    Critical 7-day Testing Sample Test Parameter dDilution Min Frequency Type

    Pass/Fail Survival [TLP6C] Report

     Survival [TOP6C] Report Pimephales promelas LNOEC% Mortality at Critical Dilution [TJP6C] Report (Fathead minnow), 7-day e10% 1/quarter 24-hr comp Testing chronic NOEC static Pass/Fail Growth [TGP6C] Report Routine renewal, freshwater NOEC Growth [TPP6C] Report S% Coeff of Variation [TQP6C] Report

    bRetest #1 [22415] Report As 24-hr comp crequired bRetest #2 [22416] Report Retesting

    a See Part II, Section C, Whole Effluent Toxicity Testing, for additional monitoring and reporting conditions. b Applies only to the Fathead minnow test species. c Monthly retesting required only if routine test for reporting period fails. Fill out ONLY these two retest

    parameters on the retest DMRs, do not change the original results, and put the correct submission date in the

    lower right hand corner of the DMR. d All chronic WET testing shall use the dilution series specified in Part II, Section C, Item 1. e Results of retests conducted pursuant to prior test failure shall not be submitted on DMRs in lieu of routine

     test results (see Part II, Section C, Item 2.a).

WET testing summary reports: Reports of all WET testing initiated, regardless of whether such

    tests are carried to completion, shall follow the requirements of Part II, Section C, Item 4.

b. Concurrent Testing Provision for Chronic WET Testing

Concurrent analyses of total ammonia and pH are required for each individual effluent sample

    collected for chronic WET testing or retesting of the Fathead minnow species. Reporting of

    concurrent testing results shall be in accordance with the following requirements. Results shall also

    be submitted in or concurrently with each WET test report.

     PERMIT NO. OK0026051

     Permit Part I- Page 7

    Concurrent Effluent Testing for Chronic WET Tests Reporting Requirements

    Outfall TX1

    Concentration Monitoring Requirements

    Effluent Characteristic Daily Monthly Daily Monitoring Sample

    Min Avg Max Frequency Type

    a,bAmmonia, total (mg/l) bReport Report Report 1/quarter 24 hr comp [STORET 00610]

    Measured in each composite a,bpH (std units) Report N/A Report 1/quarter effluent sample, including static [STORET 00400] brenewals, just prior to first use a Report only those effluent samples collected for WET testing of the Fathead minnow species.

Samples collected for WET testing purposes, including static renewals, shall be of sufficient volume to allow

    for the required concurrent analyses in addition to the WET testing itself.

Samples sent directly to a WET testing laboratory shall not undergo any preservation other than refrigeration to no

    more than 4º C prior to arrival and processing at the WET testing laboratory.

    b Two sets of samples for concurrent analyses are required for ammonia and pH:

Concurrent ammonia analyses must be performed on composite samples that are properly preserved and delivered

    directly to a state certified analytical laboratory. These results shall be included in the results for Outfall 001.

    A second concurrent analysis is required for the sample that is sent to the WET testing laboratory and for the table above.

Just prior to first use of each composite sample for WET testing purposes, the biomonitoring laboratory shall take

    an adequately-sized portion of each composite sample, acidify it in accordance with preservation requirements in 40

    CFR 136, and have it analyzed for total ammonia at a state certified laboratory. The pH measurement required for the table above must be taken just prior to the acidification step. These pH and ammonia readings should NOT be

    included in the results for Outfall 001.

c. Sampling Location

    Samples taken in compliance with the monitoring requirements specified above for Outfall TX1

    shall be taken at the following location: at the same location as for Outfall 001 (see Appendix for

    latitude/longitude and legal location).

     PERMIT NO. OK0026051

     Permit Part I- Page 8

    d. Whole Effluent Toxicity Reporting and Monitoring Requirements -Ceriodaphnia dubia

    (Outfall TX1)

    Reporting and Monitoring Effluent Characteristic aRequirements

    Critical 7-day Testing Sample Test Parameter ebDilution Min Frequency Type

    Pass/Fail Survival [TLP3B] Report

     Survival [TOP3B] Report LNOECCeriodaphnia dubia, 7-day % Mortality at Critical Dilution [TJP3B] Report fchronic NOEC static 10% 1/quarter 24-hr comp Testing Pass/Fail Reproduction [TGP3B] Report renewal, freshwater Routine NOEC Reproduction [TPP3B] Report S% Coeff of Variation [TQP3B] Report

    cRetest #1 [22415] Report As 24-hr comp drequired cRetest #2 [22416] Report Retesting

    a See Part II, Section D, Whole Effluent Toxicity Testing, for additional monitoring and reporting conditions. b See provision for monitoring frequency reduction after the first year (Part II, Section D, Item 5). c Applies only to the C. dubia test species according to results of test failure triggering monthly retests. d Monthly retesting required only if routine test for reporting period fails. Fill out ONLY these two retest

    parameters on the retest DMRs, do not change the original results, and put the correct submission date in the

    lower right hand corner of the DMR. e All chronic WET testing shall use the dilution series specified in Part II, Section D, Item 1. f Results of retests conducted pursuant to prior test failure shall not be submitted on DMRs in lieu of

     routine test results(see Part II, Section D, Item 2.a).

    C. dubia whole effluent toxicity reporting and monitoring requirements apply beginning

    ________________, and the first reporting period is _______________ to _______________.

    WET testing summary reports: Reports of all WET testing initiated, regardless of whether such

    tests are carried to completion, shall follow the requirements of Part II, Section D, Item 4.

e. Sampling Location

    Samples taken in compliance with the monitoring requirements specified above for Outfall TX1

    shall be taken at the following location: the same location as for Outfall 001 (see Appendix for

    latitude/longitude and legal location).

     PERMIT NO. OK0026051

     Permit Part I- Page 9 3. Effluent Priority Pollutants (Outfall 001)

     These limits are carried over from the previous permit even though RP was not indicated

    .

     (Effective from the effective date of the permit through the expiration date of the permit)

     Discharge Limitations Monitoring Requirement Mass (lbs/d) Concentration (ug/l)* Measure-

     mentSample Effluent Characteristics Monthly Monthly Daily Frequency Type Avg. Avg. Maximum

    **Endosulfan, Total 0.007 0.290 0.581 1/quarter 24-hr comp.

    * If any individual test result is less than the minimum quantification level of 0.10 ug/l (Monthly and/or Daily

    Maximum), a value of zero (0) may be used for the discharge monitoring report (DMR) calculations and

    reporting requirements. ** alpha and beta endosulphan combined.

    B. Sanitary Sewer Overflows

    Any bypass in the collection system [sanitary sewer overflow (SSO)] shall be reported in

    accordance with Part III.B.6. of this permit.

    C. Reopener Clause

    This permit may be reopened for modification or revocation and reissuance to require additional

    monitoring and/or effluent limitations where actual or potential exceedances of State water quality

    criteria are determined to be the result of the permittee’s discharge to the receiving water(s), or a

    Total Maximum Daily Load (TMDL) is established for the receiving water(s), or when required as

    technology. Modification or revocation and reissuance of the permit shall follow regulations listed

    at 40 CFR, Part 124.5.

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