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Electric Services, major discharger, Clinton, Illinois. NPDES permit IL0036919 expired Mar 31, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 002 |
| Temperature, water deg. fahrenheit | maximum daily average | ≤ 110.7 deg F | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 002 |
| pH | maximum | ≤ 9 SU | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 002 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 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 | daily maximum | ≤ .05 mg/L | all year | 002 |
| pH | minimum | ≥ 6 SU | all year | 003 |
| pH | maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 003 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| pH | minimum | ≥ 6 SU | all year | 004 |
| pH | maximum | ≤ 9 SU | all year | 004 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 004 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 004 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | 004 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| pH | minimum | ≥ 6 SU | all year | 005 |
| pH | maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 005 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | 005 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | minimum | ≥ 6 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| pH | maximum | ≤ 9 SU | all year | 007 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 007 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 007 |
| Zinc, total [as Zn] | 30-day average | ≤ .0668 mg/L | all year | 007 |
| Zinc, total [as Zn] | 30-day average | ≤ .0668 mg/L | all year | 007 |
| Zinc, total [as Zn] | 30-day average | report only (mg/L) | all year | 007 |
| Zinc, total [as Zn] | 30-day average | report only (mg/L) | all year | 007 |
| Zinc, total [as Zn] | daily maximum | ≤ .2574 mg/L | all year | 007 |
| Zinc, total [as Zn] | daily maximum | ≤ .2574 mg/L | all year | 007 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 007 |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 007 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| pH | minimum | ≥ 6 SU | all year | 015 |
| pH | maximum | ≤ 9 SU | all year | 015 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 015 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 015 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 015 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 015 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | A02 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 60 mg/L | all year | A02 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 22 lb/d | all year | A02 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 75 lb/d | all year | A02 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | A02 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | A02 |
| Solids, total suspended | 30-day average | ≤ 22 lb/d | all year | A02 |
| Solids, total suspended | daily maximum | ≤ 75 lb/d | all year | A02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | A02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | A02 |
| Coliform, fecal general | daily maximum | report only (#/100mL) | May–Oct | A02 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | B02 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | B02 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | B02 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | B02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | B02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | B02 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 45 Electric Services permits in Illinois.
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