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Electric Services, major discharger, Morris, Illinois. NPDES permit IL0002224 expired Aug 31, 2021; its limits still apply. Last 12 months: no values over a limit, 6 required values missing, 1 of 77 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 93 deg F | Apr–Nov | 001 |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 63 deg F | Jan, Feb, Mar, Dec | 001 |
| pH | monthly minimum | ≥ 6 SU | all year | 001 |
| pH | monthly maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | 001 |
| Oil & Grease | 30-day average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| 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 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 001 |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 93 deg F | Apr–Nov | 002 |
| Temperature, water deg. fahrenheit | monthly maximum | ≤ 63 deg F | Jan, Feb, Mar, Dec | 002 |
| pH | monthly minimum | ≥ 6 SU | all year | 002 |
| pH | monthly maximum | ≤ 9 SU | 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 | daily maximum | ≤ .05 mg/L | all year | 002 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 30 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 60 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 7.8 lb/d | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 38 lb/d | all year | 003 |
| pH | monthly minimum | ≥ 6 SU | all year | 003 |
| pH | monthly maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 003 |
| Solids, total suspended | 30-day average | ≤ 7.8 lb/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 38 lb/d | 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 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 003 |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | May–Oct | 003 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | all year | 004 |
| pH | monthly minimum | ≥ 6 SU | all year | 004 |
| pH | monthly maximum | ≤ 9 SU | 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 |
| Chlorine, total residual | daily maximum | ≤ .05 mg/L | all year | 004 |
| 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 | ≤ 10 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 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | C02 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | C02 |
| Oil and grease | 30-day average | ≤ 15 mg/L | all year | C02 |
| Oil and grease | daily maximum | ≤ 20 mg/L | all year | C02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | C02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | C02 |
| Solids, total suspended | 30-day average | ≤ 15 mg/L | all year | D02 |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | all year | D02 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | D02 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | D02 |
Cited limits by parameter: Illinois's rules and the federal ones.
Same industry: the 45 Electric Services permits in Illinois.
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