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Electric Services, major discharger, Two Rivers, Wisconsin. NPDES permit WI0000957, in force until Sep 30, 2029. Last 12 months: over a limit 19 times (last June 2026), 91 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| October 2025 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| November 2025 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| November 2025 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| December 2025 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| December 2025 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| January 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| January 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| February 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| February 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| March 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| March 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| April 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| April 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| April 2026 | 105 | Solids, total suspended, monthly average | 30.5429 | ≤ 30 mg/L | 2% |
| May 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| May 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| June 2026 | 001 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| June 2026 | 002 | Oxidants, total residual, daily maximum | < 40 | ≤ 38 ug/L | 5% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ .8 mg/L | all year | 001 |
| Oxidants, total residual | monthly average | ≤ 38 ug/L | all year | 001 |
| Oxidants, total residual | daily maximum | ≤ 38 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 maximum | report only (MGD) | all year | 001 |
| Mercury, total recoverable | annual maximum | report only (ug/L) | all year | 001 |
| Heat [summer] [per hour] | monthly average | report only (MBTU/d) | all year | 001 |
| Heat [summer] [per hour] | monthly maximum | report only (MBTU/d) | all year | 001 |
| Water treatment additives | monthly maximum | report only (mg/L) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ .8 mg/L | all year | 002 |
| Oxidants, total residual | monthly average | ≤ 38 ug/L | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ 38 ug/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 |
| Mercury, total recoverable | annual maximum | report only (ug/L) | all year | 002 |
| Heat [summer] [per hour] | monthly average | report only (MBTU/d) | all year | 002 |
| Heat [summer] [per hour] | monthly maximum | report only (MBTU/d) | all year | 002 |
| Water treatment additives | monthly maximum | report only (mg/L) | all year | 002 |
| 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 |
| Heat [summer] [per hour] | weekly average | ≤ 8273 MBTU/d | all year | 010 |
| pH | daily minimum | ≥ 6 SU | all year | 101 |
| pH | daily maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 101 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 101 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 101 |
| pH | monthly maximum | report only (SU) | all year | 102 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 102 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 102 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 102 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 102 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 102 |
| pH | monthly maximum | report only (SU) | all year | 103 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 103 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 103 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 103 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 103 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 103 |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year | 104 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 104 |
| pH | daily minimum | ≥ 6 SU | all year | 104 |
| pH | daily maximum | ≤ 9 SU | all year | 104 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 104 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 104 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 104 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 104 |
| pH | daily minimum | ≥ 6 SU | all year | 105 |
| pH | daily maximum | ≤ 9 SU | all year | 105 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 105 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 105 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 105 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 105 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 105 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 105 |
| pH | daily minimum | ≥ 6 SU | all year | 106 |
| pH | daily maximum | ≤ 9 SU | all year | 106 |
| 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 |
| pH | daily minimum | ≥ 6 SU | all year | 107 |
| pH | daily maximum | ≤ 9 SU | all year | 107 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 107 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 107 |
| Oil and grease, hexane extr method | monthly average | ≤ 15 mg/L | all year | 107 |
| Oil and grease, hexane extr method | daily maximum | ≤ 20 mg/L | all year | 107 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 107 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 107 |
| Mercury, total recoverable | annual maximum | report only (ng/L) | all year | 108 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 109 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 109 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 110 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 110 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 111 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 111 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 701 |
| Flow, in conduit or thru treatment plant | monthly maximum | report only (MGD) | all year | 701 |
Cited limits by parameter: Wisconsin's rules and the federal ones.
Same industry: the 17 Electric Services permits in Wisconsin.
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