Clean Water Act discharge permit · NPDES OK0044512
OKLAHOMA STATE UNIVERSITY, Stillwater, OK: NPDES OK0044512 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
OKLAHOMA STATE UNIVERSITY, held by OSU Water Plant, holds NPDES permit OK0044512, which discharges to 620900040200_00 Cow Creek/Trib/Stillwater Ck. EPA’s file records it issued September 30, 2019 and expiring October 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | OKLAHOMA STATE UNIVERSITY |
|---|---|
| Permittee as filed | OSU Water Plant |
| NPDES ID | OK0044512 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 30, 2019 |
| Expiration date | October 31, 2024 |
| Issuing agency | ODEQ |
| Address | Stillwater, OK 74078 |
| Receiving water | 620900040200_00 Cow Creek/trib/Stillwater Ck |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Harrington Creek-Stillwater Creek (HUC 110500030104) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 8Pollutants on file
- 7Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| Aluminum, dissolved [as Al] | 6 | 93 | 68 | July 31, 2023 | 291% over the limit |
| Solids, total suspended | 6 | 55 | 30 | January 31, 2021 | 1,185% over the limit |
| Manganese, dissolved [as Mn] | 6 | 29 | 4 | March 31, 2024 | 400% over the limit |
| Iron, dissolved [as Fe] | 6 | 27 | 2 | March 31, 2024 | 400% over the limit |
| pH | 4 | 16 | 0 | ||
| Chlorine, total residual | 2 | 14 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 8 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES OK0044512.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID OK0044512 there.
Nearby on the register
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- Every permit record in Oklahoma, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.