Clean Water Act discharge permit · NPDES OK0039063
DURANT CITY UTILITIES AUTH, Durant, OK: NPDES OK0039063 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 50Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
- 2Inspections on file
- 1Formal enforcement actions
DURANT CITY UTILITIES AUTH, held by Durant City Utilities Auth, holds NPDES permit OK0039063, which discharges to 410700000100_00 Caney Ck/Trib/Island Bayou. EPA’s file records it issued November 2, 2016 and expiring November 30, 2021.
DURANT CITY UTILITIES AUTH, Durant, Oklahoma: Individual permit OK0039063, held by Durant City Utilities Auth; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued November 2, 2016, term to November 30, 2021, by ODEQ; discharges to 410700000100_00 Caney Ck/trib/Island Bayou.
- Nitrogen, ammonia total [as N]: 15 limits, 151 violations of any kind, 111 effluent exceedances, latest June 30, 2026, largest 1,334% over the limit.
- Solids, total suspended: 6 limits, 69 violations of any kind, 56 effluent exceedances, latest June 30, 2026, largest 3,011% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 6 limits, 34 violations of any kind, 21 effluent exceedances, latest April 30, 2026, largest 214% over the limit.
- E. coli: 2 limits, 25 violations of any kind, 21 effluent exceedances, latest June 30, 2026, largest 99,999% over the limit.
- BOD, 5-day, 20 deg. C: 0 limits, 18 violations of any kind, 18 effluent exceedances, latest December 31, 2003, largest 111% over the limit.
- pH: 6 limits, 39 violations of any kind, 15 effluent exceedances, latest April 30, 2026.
- Oxygen, dissolved [DO]: 2 limits, 10 violations of any kind, 6 effluent exceedances, latest April 30, 2026, largest 23% over the limit.
- Whole Effluent Toxicity [WET] - C. dubia: 0 limits, 6 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 25% over the limit.
- Arsenic, dry weight: 5 limits, 15 violations of any kind, 2 effluent exceedances, latest December 31, 2010, largest 99,999% over the limit.
- Selenium, dry weight: 3 limits, 12 violations of any kind, 2 effluent exceedances, latest December 31, 2010, largest 99,999% over the limit.
- Cadmium, dry weight: 3 limits, 10 violations of any kind, 2 effluent exceedances, latest December 31, 2010, largest 99,999% over the limit.
- Molybdenum, sludge, total, dry weight [as Mo]: 3 limits, 7 violations of any kind, 2 effluent exceedances, latest December 31, 2005, largest 47% over the limit.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 15 violations of any kind, 0 effluent exceedances.
- Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia: 2 limits, 15 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- Coef Of Var Static Renewal 7Day Chronic Pimephales promelas: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- Nickel, sludge, total, dry weight [as Ni]: 5 limits, 12 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 11 violations of any kind, 0 effluent exceedances.
- Lead, sludge, total, dry weight [as Pb]: 3 limits, 10 violations of any kind, 0 effluent exceedances.
- Mercury, sludge, total, dry weight [as Hg]: 3 limits, 10 violations of any kind, 0 effluent exceedances.
- Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 9 violations of any kind, 0 effluent exceedances.
- Copper, dry weight: 3 limits, 8 violations of any kind, 0 effluent exceedances.
- Zinc, sludge, total, dry weight [as Zn]: 3 limits, 8 violations of any kind, 0 effluent exceedances.
- Pass/Fail Static Renewal 7Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- %Mortality 7Day Chronic Ceriodaphnia dubia: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- Di[2-ethylhexyl] phthalate [DEHP]: 6 limits, 7 violations of any kind, 0 effluent exceedances.
- %Mortality Static Renewal 7Day Chronic Pimephales Promelas: 2 limits, 7 violations of any kind, 0 effluent exceedances.
- Chromium, sludge, total, dry weight [as Cr]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Level of pathogen requirements achieved: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Description of pathogen option used: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Vector attraction reduction alternative used: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
- Ann. amt sludge disposed by other method: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Annual amt of sludge incinerated: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Annual sludge production, total: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Annual amount of sludge land applied: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Annual amt. sludge disposed surface unit: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Polychlorinated biphenyls [PCBs]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
- Toxicity characteristic leaching procedure: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amt sludge disposed in landfill: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Annual amt sludge transported interstate: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Unit w/liner/leachate collection system: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Unit boundary to property line distance: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Compliance w/part 258 sludge requirement: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Pollutant table from 503.13: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Coliform, fecal general: 0 limits, 2 violations of any kind, 0 effluent exceedances.
- Annual whole sludge application rate: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Solids, total dissolved- 180 deg. C: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- October 27, 2026: Letter of Violation/ Warning Letter (State).
- September 24, 2026: Evaluation (S).
- August 4, 2026: State CWA Non Penalty AO (State).
- July 7, 2026: Letter of Violation/ Warning Letter (State).
- April 13, 2026: Evaluation (S).
- March 4, 2024: Effluent Violations - Unapproved Bypass (ST6).
- February 14, 2024: Effluent Violations - Unapproved Bypass (ST6).
- February 13, 2024: Effluent Violations - Unapproved Bypass (ST6).
- July 15, 2023: Effluent Violations - Unapproved Bypass (ST6).
- July 12, 2023: Effluent Violations - Unapproved Bypass (ST6).
- July 11, 2023: Reporting Violations - Improper/ Incorrect Reporting (ST6).
- July 6, 2023: Management Practice Violations - Failure to Maintain Records (ST6).
- July 6, 2023: Permit Violations - Unapproved Operation (ST6).
- June 23, 2023: Effluent Violations - Unapproved Bypass (ST6).
- June 9, 2023: Permit Violations - Violation Specified in Comment (ST6).
- June 9, 2023: Management Practice Violations - Improper Operation and Maintenance (ST6).
- February 27, 2022: Effluent Violations - Unapproved Bypass (ST6).
- January 3, 2022: Effluent Violations - Unapproved Bypass (ST6).
- September 20, 2021: Effluent Violations - Unapproved Bypass (ST6).
- May 2, 2020: Effluent Violations - Unapproved Bypass (ST6).
- January 21, 2020: Effluent Violations - Unapproved Bypass (ST6).
- April 12, 2019: Permit Violations - Violation Specified in Comment (ST6).
- May 14, 2018: Permit Violations - Violation Specified in Comment (ST6).
- October 24, 2017: Permit Violations - Violation Specified in Comment (ST6).
Oklahoma holds 197 Publicly owned treatment works coverages of this permit type in EPA’s file; 79 were issued before OK0039063.
Coverages issued nearest OK0039063
- October 3, 2016: CLINTON, CITY OF, Clinton, OK0031011, held by Clinton PWA
- October 3, 2016: NORTH CANADIAN WASTEWATER TREATMENT, Jones, OK0036978, held by OK City, City of-North Canadian
- October 6, 2016: OCHELATA UTILITIES AUTHORITY, Ochelata, OK0034517, held by Ochelata Utility Authority
- October 12, 2016: STROUD UA-NORTH PLANT, Stroud, OK0027367, held by Stroud Utilities Authority-North
- October 24, 2016: DEWAR PUBLIC WORKS AUTHORITY, Dewar, OK0027537, held by Dewar PWA
- November 23, 2016: BROKEN BOW PUBLIC WORKS AUTH, Broken Bow, OK0021521, held by Broken Bow PWA
- December 9, 2016: QUAPAW PWA, Quapaw, OK0028258, held by Quapaw PWA
- December 15, 2016: WOODWARD, CITY OF, Woodward, OK0034509, held by Woodward, City of
- January 12, 2017: PERKINS WWT, Perkins, OK0028801, held by Perkins, City of
- January 17, 2017: STRINGTOWN PWA, Stringtown, OK0030449, held by Stringtown PWA
DURANT CITY UTILITIES AUTH among its neighbors
EPA’s permit file holds 1 discharge permits in the Upper Island Bayou Creek subwatershed (HUC 111401010302), OK0039063 among them. Its county holds 9, 1 of them major permits; OK0039063 is a major permit.
Identity
| Facility as filed | DURANT CITY UTILITIES AUTH |
|---|---|
| Permittee as filed | Durant City Utilities Auth |
| NPDES ID | OK0039063 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 2, 2016 |
| Expiration date | November 30, 2021 |
| Issuing agency | ODEQ |
| Address | Durant, OK 74702 |
| Receiving water | 410700000100_00 Caney Ck/trib/Island Bayou |
| Subwatershed | Upper Island Bayou Creek (HUC 111401010302) |
Effluent limits and exceedances
- 54Pollutants on file
- 50Under a numeric limit
- 52With a violation of any kind
- 12With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 15 | 151 | 111 | June 30, 2026 | 1,334% over the limit |
| Solids, total suspended | 6 | 69 | 56 | June 30, 2026 | 3,011% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 34 | 21 | April 30, 2026 | 214% over the limit |
| E. coli | 2 | 25 | 21 | June 30, 2026 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 18 | 18 | December 31, 2003 | 111% over the limit |
| pH | 6 | 39 | 15 | April 30, 2026 | |
| Oxygen, dissolved [DO] | 2 | 10 | 6 | April 30, 2026 | 23% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 0 | 6 | 4 | June 30, 2026 | 25% over the limit |
| Arsenic, dry weight | 5 | 15 | 2 | December 31, 2010 | 99,999% over the limit |
| Selenium, dry weight | 3 | 12 | 2 | December 31, 2010 | 99,999% over the limit |
| Cadmium, dry weight | 3 | 10 | 2 | December 31, 2010 | 99,999% over the limit |
| Molybdenum, sludge, total, dry weight [as Mo] | 3 | 7 | 2 | December 31, 2005 | 47% over the limit |
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 15 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 2 | 15 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 5 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 11 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 3 | 10 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 3 | 10 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 9 | 0 | ||
| Copper, dry weight | 3 | 8 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 3 | 8 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| Di[2-ethylhexyl] phthalate [DEHP] | 6 | 7 | 0 | ||
| %Mortality Static Renewal 7Day Chronic Pimephales Promelas | 2 | 7 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 2 | 4 | 0 | ||
| Level of pathogen requirements achieved | 2 | 4 | 0 | ||
| Description of pathogen option used | 2 | 4 | 0 | ||
| Vector attraction reduction alternative used | 2 | 4 | 0 | ||
| Phosphorus, total [as P] | 0 | 4 | 0 | ||
| Ann. amt sludge disposed by other method | 1 | 3 | 0 | ||
| Annual amt of sludge incinerated | 1 | 3 | 0 | ||
| Annual sludge production, total | 1 | 3 | 0 | ||
| Annual amount of sludge land applied | 1 | 3 | 0 | ||
| Annual amt. sludge disposed surface unit | 1 | 3 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 2 | 2 | 0 | ||
| Toxicity characteristic leaching procedure | 1 | 2 | 0 | ||
| Annual amt sludge disposed in landfill | 1 | 2 | 0 | ||
| Annual amt sludge transported interstate | 1 | 2 | 0 | ||
| Unit w/liner/leachate collection system | 1 | 2 | 0 | ||
| Unit boundary to property line distance | 1 | 2 | 0 | ||
| Compliance w/part 258 sludge requirement | 1 | 2 | 0 | ||
| Pollutant table from 503.13 | 1 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Annual whole sludge application rate | 1 | 1 | 0 | ||
| Solids, total dissolved- 180 deg. C | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 2 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 0 | 0 |
Inspections, violations and enforcement
- 19Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 4, 2024 | Effluent Violations - Unapproved Bypass | ST6 |
| February 14, 2024 | Effluent Violations - Unapproved Bypass | ST6 |
| February 13, 2024 | Effluent Violations - Unapproved Bypass | ST6 |
| July 15, 2023 | Effluent Violations - Unapproved Bypass | ST6 |
| July 12, 2023 | Effluent Violations - Unapproved Bypass | ST6 |
| July 11, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 6, 2023 | Management Practice Violations - Failure to Maintain Records | ST6 |
| July 6, 2023 | Permit Violations - Unapproved Operation | ST6 |
| June 23, 2023 | Effluent Violations - Unapproved Bypass | ST6 |
| June 9, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| June 9, 2023 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| February 27, 2022 | Effluent Violations - Unapproved Bypass | ST6 |
| January 3, 2022 | Effluent Violations - Unapproved Bypass | ST6 |
| September 20, 2021 | Effluent Violations - Unapproved Bypass | ST6 |
| May 2, 2020 | Effluent Violations - Unapproved Bypass | ST6 |
| January 21, 2020 | Effluent Violations - Unapproved Bypass | ST6 |
| April 12, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| May 14, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| October 24, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 24, 2026 | Evaluation | S |
| April 13, 2026 | Evaluation | S |
Formal enforcement and penalties
1 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
| Date | What EPA recorded | Agency | Federal penalty | State or local penalty |
|---|---|---|---|---|
| August 4, 2026 | State CWA Non Penalty AO | State |
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| October 27, 2026 | Letter of Violation/ Warning Letter | State |
| July 7, 2026 | Letter of Violation/ Warning Letter | State |
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.