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Electric Services, major discharger, Alma, Wisconsin. NPDES permit WI0040223, in force until Dec 31, 2029. Last 12 months: over a limit once (last November 2025), 103 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Phosphorus, total [as P], 6-month average | .0844 | ≤ .08 lb/d | 6% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | 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 maximum | report only (MGD) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | 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 | monthly maximum | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 005 |
| pH | daily minimum | ≥ 4 SU | all year | 006 |
| pH | daily maximum | ≤ 11 SU | all year | 006 |
| Phosphorus, total [as P] | monthly maximum | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | 6-month average | ≤ .08 lb/d | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 006 |
| Chlorine, total residual | monthly average | ≤ 38 ug/L | all year | 006 |
| Chlorine, total residual | daily maximum | ≤ 38 ug/L | all year | 006 |
| Mercury, total recoverable | monthly maximum | report only (ng/L) | all year | 006 |
| pH range excursions, > 60 minutes | monthly total | ≤ 0 occur/d | all year | 006 |
| pH range excursions, monthly total accum | monthly total | ≤ 446 min | all year | 006 |
| pH | daily minimum | ≥ 6 SU | all year | 007 |
| pH | daily maximum | ≤ 9 SU | all year | 007 |
| Solids, total suspended | daily maximum | ≤ 50 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 maximum | report only (MGD) | all year | 007 |
| Mercury, total recoverable | monthly maximum | report only (ug/L) | all year | 101 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 106 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 106 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 106 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 106 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 106 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 106 |
| Mercury, total recoverable | daily maximum | ≤ 4.6 ng/L | all year | 106 |
| Temperature, water deg. fahrenheit | monthly maximum | report only (deg F) | all year | 703 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 703 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 703 |
| Mercury, total recoverable | monthly maximum | report only (ug/L) | all year | 703 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Temperature, water deg. fahrenheit, daily maximum | 91 deg F | new | — | — |
| Temperature, water deg. fahrenheit, weekly average | 78 deg F | new | — | — |
Cited limits by parameter: Wisconsin's rules and the federal ones.
Same industry: the 17 Electric Services permits in Wisconsin.
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