Clean Water Act discharge permit · NPDES OK0031631
RED OAK PUBLIC WORKS AUTHORITY, Red Oak, OK: NPDES OK0031631 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
RED OAK PUBLIC WORKS AUTHORITY, held by Red Oak PWA, holds NPDES permit OK0031631, which discharges to 220100 Red Oak Ck/Fourche Maline. EPA’s file records it issued September 28, 2014 and expiring October 31, 2023.
RED OAK PUBLIC WORKS AUTHORITY, Red Oak, Oklahoma: Individual permit OK0031631, held by Red Oak PWA; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued September 28, 2014, term to October 31, 2023, by ODEQ; discharges to 220100 Red Oak Ck/Fourche Maline; Hay Farming.
- BOD, 5-day, 20 deg. C: 3 limits, 63 violations of any kind, 30 effluent exceedances, latest March 31, 2024, largest 2,660% over the limit.
- pH: 2 limits, 47 violations of any kind, 25 effluent exceedances, latest April 30, 2025.
- Solids, total suspended: 3 limits, 44 violations of any kind, 5 effluent exceedances, latest November 30, 2008, largest 3,301% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 36 violations of any kind, 2 effluent exceedances, latest October 31, 2018, largest 2,147,483,650% over the limit.
- Phosphorus, total [as P]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- April 30, 2026: Letter of Violation/ Warning Letter (State).
- October 1, 2018: Effluent Violations - Unauthorized Discharge (ST6).
Oklahoma holds 197 Publicly owned treatment works coverages of this permit type in EPA’s file; 31 were issued before OK0031631.
Coverages issued nearest OK0031631
- January 24, 2013: SENECA-CAYUGA TRIBE, Miami, OK0039098, held by Seneca-Cayuga Tribe
- March 12, 2013: CANDIAN PUBLIC WORKS AUTH, Canadian, OK0035297, held by Canadian PWA
- November 26, 2013: SHAWNEE MUNICIPAL AUTH-SOUTH, Shawnee, OK0026051, held by Shawnee Municipal Auth-Southside WWTF
- August 1, 2014: BRISTOW, CITY OF, Bristow, OK0032549, held by Bristow, City of
- August 7, 2014: WALTERS, CITY OF, Walters, OK0020770, held by Walters, City of
- October 9, 2014: BETHANY/WARR ACRES PWA, Oklahoma City, OK0026077, held by Bethany Warr Acres PWA -Bluff
- October 20, 2014: YUKON, CITY OF, Yukon, OK0028584, held by Yukon, City of
- November 24, 2014: BIXBY PWA (NORTH), Bixby, OK0036153, held by Bixby PWA (North)
- January 5, 2015: ADAIR, TOWN OF, Adair, OK0027197, held by Adair, Town of
- January 20, 2015: CLAREMORE, CITY OF, Claremore, OK0027049, held by Claremore, City of
RED OAK PUBLIC WORKS AUTHORITY among its neighbors
EPA’s permit file holds 1 discharge permits in the Red Oak Creek subwatershed (HUC 111101050406), OK0031631 among them. Its county holds 6, 0 of them major permits; OK0031631 is a minor permit.
Identity
| Facility as filed | RED OAK PUBLIC WORKS AUTHORITY |
|---|---|
| Permittee as filed | Red Oak PWA |
| NPDES ID | OK0031631 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 28, 2014 |
| Expiration date | October 31, 2023 |
| Issuing agency | ODEQ |
| Address | Red Oak, OK 74563 |
| Receiving water | 220100 Red Oak Ck/Fourche Maline |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Red Oak Creek (HUC 111101050406) |
| NAICS | 111940 – Hay Farming |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 4With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 63 | 30 | March 31, 2024 | 2,660% over the limit |
| pH | 2 | 47 | 25 | April 30, 2025 | |
| Solids, total suspended | 3 | 44 | 5 | November 30, 2008 | 3,301% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 36 | 2 | October 31, 2018 | 2,147,483,650% over the limit |
| Phosphorus, total [as P] | 2 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 1, 2018 | Effluent Violations - Unauthorized Discharge | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES OK0031631.
Formal enforcement and penalties
0 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.
Informal enforcement
| Date | What EPA recorded | Agency |
|---|---|---|
| April 30, 2026 | Letter of Violation/ Warning Letter | State |
Watch this permit
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.