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Electric Services, Fort Towson, Oklahoma. NPDES permit OK0035327, in force until Dec 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 1001 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 3336 lb/d | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 002 |
| Oil and grease, hexane extr method | monthly average | ≤ 500 lb/d | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 667 lb/d | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 1.7 mg/L | all year | 002 |
| Phosphorus, total [as P] | daily maximum | ≤ 2.1 mg/L | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 57 lb/d | all year | 002 |
| Phosphorus, total [as P] | daily maximum | ≤ 70 lb/d | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | instantaneous maximum | ≤ .099 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 01B |
| pH | maximum | ≤ 9 SU | all year | 01B |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 01B |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01B |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 01B |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 01B |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01B |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01B |
| pH | minimum | ≥ 6 SU | all year | 01C |
| pH | maximum | ≤ 9 SU | all year | 01C |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 01C |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 01C |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 01C |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 01C |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 01C |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 01C |
| Zinc, total [as Zn] | monthly average | ≤ 1 mg/L | all year | 02A |
| Zinc, total [as Zn] | daily maximum | ≤ 1 mg/L | all year | 02A |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 02A |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 02A |
| Chlorine, free available | monthly average | ≤ .2 mg/L | all year | 02A |
| Chlorine, free available | daily maximum | ≤ .5 mg/L | all year | 02A |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 02C |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 02C |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 02C |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 02S |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 45 mg/L | all year | 02S |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 02S |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 02S |
Cited limits by parameter: Oklahoma's rules and the federal ones.
Same industry: the 25 Electric Services permits in Oklahoma.
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