NPDES permit OK0000639 · Major NON-POTW · effective, expires 2028-06-30 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-07-31. Most often over: Solids, total suspended (4).
Reports are due about 15 days after each monitoring period ends (the most common figure among OK permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. centigrade | DAILY MX | <= 52 deg C | all year |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 24.6 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 52.7 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | <= 497 lb/d | all year |
| 001 | Oil and grease, hexane extr method | MO AVG | <= 6.9 mg/L | all year |
| 001 | Oil and grease, hexane extr method | DAILY MX | <= 8.7 mg/L | all year |
| 001 | Oil and grease, hexane extr method | MO AVG | report only | all year |
| 001 | Oil and grease, hexane extr method | DAILY MX | report only | all year |
| 001 | Oxidants, total residual | INST MAX | <= .099 mg/L | all year |
| 001 | Oxidants, free available | MO AVG | <= .2 mg/L | all year |
| 001 | Oxidants, free available | DAILY MX | <= .5 mg/L | all year |
| 001 | Oxidants, free available | MO AVG | <= 2 lb/d | all year |
| 001 | Oxidants, free available | DAILY MX | <= 5 lb/d | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| TX1 | Whole effluent toxicity - retest #1 | 48HR MIN | report only | all year |
| TX1 | Whole effluent toxicity - retest #2 | 48HR MIN | report only | all year |
| TX1 | LC50 Static Renewal 48Hr Acute Daphnia pulex | 48HR MIN | report only | all year |
| TX1 | LC50 Static Renewal 48Hr Acute Pimephales promelas | 48HR MIN | report only | all year |
| TX1 | LC50 Pass/Fail Static Renewal 48Hr Acute Daphnia Pulex | 48HR MIN | report only | all year |
| TX1 | LC50 Static Renewal 48Hr Acute Pimephales promelas | 48HR MIN | report only | all year |
| TX1 | %Mortality Static Renewal 48Hr Acute Daphnia Pulex | 48HR MIN | report only | all year |
| TX1 | % Mortality Static Renewal 48 Hr Pimephales promelas or use TJA6C | 48HR MIN | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states