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Electric Services, major discharger, China, Michigan. NPDES permit MI0038172 expired Oct 1, 2022; its limits still apply. Last 12 months: no values over a limit, 10 required values missing, 9 of 66 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 001 |
| Thermal Discharge | monthly average | ≤ 7000 MBTU/hr | all year | 001 |
| Thermal Discharge | daily maximum | report only (MBTU/hr) | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 001 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 001 |
| Oxidants, total residual | instantaneous maximum | ≤ 50 ug/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 | monthly average | report only (MGD) | 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 | monthly average | report only (MGD) | 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 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | 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 | ≤ 38 ug/L | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 38 ug/L | all year | 001 |
| Chlorine, total residual | daily geometric mean | ≤ 200 ug/L | all year | 001 |
| Chlorine, total residual | daily geometric mean | ≤ 200 ug/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ 300 ug/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ 300 ug/L | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year | 001 |
| Chlorination duration | daily maximum | report only (min/d) | all year | 001 |
| Chlorination duration | daily maximum | report only (min/d) | all year | 001 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 001 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Jan, Feb | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 002 |
| pH | daily 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 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 20 mg/L | all year | 002 |
| Silver, total [as Ag] | daily maximum | ≤ 11 ug/L | all year | 002 |
| Silver, total [as Ag] | daily maximum | ≤ .035 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 |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year | 002 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 002 |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year | 002 |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year | 002 |
| Duration of discharge | monthly average | report only (hr) | all year | 002 |
| Duration of discharge | daily maximum | report only (hr) | all year | 002 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 002 |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 27 Electric Services permits in Michigan.
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