Clean Water Act discharge permit · NPDES OK0044504
CP KELCO US, INC.-OKMULGEE, Okmulgee, OK: NPDES OK0044504 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 32Pollutants under a numeric limit
- 14Pollutants with an effluent exceedance
CP KELCO US, INC.-OKMULGEE, held by CP Kelco US, Inc.-Okmulgee, holds NPDES permit OK0044504, which discharges to 520700020010_00 Deep Fork/ Canadian River. EPA’s file records it issued June 21, 2016 and expiring June 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | CP KELCO US, INC.-OKMULGEE |
|---|---|
| Permittee as filed | CP Kelco US, Inc.-Okmulgee |
| NPDES ID | OK0044504 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 21, 2016 |
| Expiration date | June 30, 2021 |
| Issuing agency | ODEQ |
| Address | Okmulgee, OK 74447 |
| Receiving water | 520700020010_00 Deep Fork/ Canadian River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Negro Creek-Deep Fork of Canadian River (HUC 111003030905) |
| Other EPA IDs (FRS) | RCRA handler OKR000003798; ICIS-AIR source OK0000004011100009 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 37Pollutants on file
- 32Under a numeric limit
- 36With a violation of any kind
- 14With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 4 | 68 | 23 | May 31, 2024 | 753% over the limit |
| Potassium, total [as K] | 13 | 113 | 13 | July 31, 2026 | 115% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 59 | 9 | July 31, 2024 | 694% over the limit |
| Color [PT-CO units] | 2 | 21 | 9 | December 31, 2023 | |
| Oxygen, dissolved [DO] | 2 | 17 | 6 | May 31, 2024 | 13% over the limit |
| Whole effluent toxicity | 3 | 13 | 5 | June 30, 2022 | 85% over the limit |
| Oxidants, total residual | 1 | 16 | 3 | November 30, 2019 | 92% over the limit |
| Flow, in conduit or thru treatment plant | 14 | 128 | 2 | July 31, 2026 | 1,598% over the limit |
| Nitrogen, ammonia total [as N] | 14 | 58 | 2 | July 31, 2023 | 202% over the limit |
| pH | 6 | 32 | 2 | November 30, 2024 | |
| Oil and grease, hexane extr method | 2 | 19 | 2 | May 31, 2025 | 275% over the limit |
| Coliform, fecal general | 0 | 10 | 2 | June 30, 2012 | 323% over the limit |
| E. coli | 2 | 5 | 2 | June 30, 2021 | 99,999% over the limit |
| Whole Effluent Toxicity [WET] - P. promelas | 0 | 1 | 1 | December 31, 2024 | 80% over the limit |
| Oxygen demand, chem. [high level] [COD] | 0 | 16 | 0 | ||
| Solids, total dissolved- 180 deg. C | 6 | 9 | 0 | ||
| LC50 Static Renewal 48Hr Acute Daphnia pulex | 2 | 6 | 0 | ||
| %Mortality Static Renewal 48Hr Acute Daphnia Pulex | 2 | 6 | 0 | ||
| LC50 Static Renewal 48Hr Acute Pimephales promelas | 2 | 5 | 0 | ||
| LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex | 2 | 5 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 1 | 5 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 1 | 5 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 5 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 1 | 5 | 0 | ||
| LC50 Static Renewal 48Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| % Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C | 2 | 4 | 0 | ||
| %Mortality Static Renewal 7Day Chronic Pimephales Promelas | 1 | 4 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 4 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| %Mortality 7Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 3 | 0 | ||
| Whole effluent toxicity - retest #1 | 0 | 1 | 0 | ||
| Whole effluent toxicity - retest #2 | 0 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 0 | 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
- 10Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 13, 2023 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| November 13, 2023 | Effluent Violations - Unauthorized Discharge | ST6 |
| March 7, 2023 | Effluent Violations - Unapproved Bypass | ST6 |
| March 7, 2023 | PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)] | ST6 |
| December 18, 2019 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 18, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| December 18, 2019 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| December 18, 2019 | Management Practice Violations - Failure to Maintain Records | ST6 |
| April 23, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| March 8, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.