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Electric Services, major discharger, Grand Haven, Michigan. NPDES permit MI0000728 expired Oct 1, 2015; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 | ≤ 50 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 100 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 170 lb/d | all year | 002 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 002 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 002 |
| Oil & Grease | monthly average | ≤ 33 lb/d | all year | 002 |
| Oil & Grease | daily maximum | ≤ 50 lb/d | all year | 002 |
| Selenium, total [as Se] | monthly average | ≤ 5 ug/L | all year | 002 |
| Selenium, total [as Se] | daily maximum | report only (ug/L) | all year | 002 |
| Selenium, total [as Se] | monthly average | ≤ .017 lb/d | all year | 002 |
| Selenium, total [as Se] | daily maximum | report only (lb/d) | all year | 002 |
| Cyanide [A] | monthly average | report only (ug/L) | all year | 002 |
| Cyanide [A] | daily maximum | report only (ug/L) | all year | 002 |
| Cyanide [A] | monthly average | report only (lb/d) | all year | 002 |
| Cyanide [A] | daily maximum | report only (lb/d) | all year | 002 |
| Toxicity, choice of species | monthly average | ≤ 1 tox chronic | all year | 002 |
| Toxicity, choice of species | daily maximum | report only (tox chronic) | all year | 002 |
| Total residual ooxidant-discharge time | daily maximum | report only (min/d) | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ 38 ug/L | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ 200 ug/L | all year | 002 |
| Oxidants, total residual | daily maximum | ≤ 50 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 | daily maximum | report only (MGD) | all year | 002 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | 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 |
| Mercury, total [as Hg] | 12-month average | ≤ 25 ng/L | all year | 002 |
| Mercury, total [as Hg] | 12-month average | ≤ .000083 lb/d | all year | 002 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 13 lb/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 43 lb/d | all year | 003 |
| Oil & Grease | monthly average | ≤ 10 mg/L | all year | 003 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 003 |
| Oil & Grease | monthly average | ≤ 4 lb/d | all year | 003 |
| Oil & Grease | daily maximum | ≤ 7 lb/d | all year | 003 |
| Total residual ooxidant-discharge time | daily maximum | report only (min/d) | all year | 003 |
| Oxidants, total residual | daily maximum | ≤ 38 ug/L | all year | 003 |
| Oxidants, total residual | daily maximum | ≤ 200 ug/L | all year | 003 |
| Oxidants, total residual | daily maximum | ≤ 50 ug/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 |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year | 003 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 003 |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year | 003 |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year | 003 |
| Mercury, total [as Hg] | 12-month average | ≤ 6 ng/L | all year | 003 |
| Mercury, total [as Hg] | 12-month average | ≤ .0000026 lb/d | all year | 003 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 003 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 005 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 005 |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | all year | 005 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 005 |
| Thermal Discharge | daily maximum | ≤ 660 MBTU/hr | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ 45 mg/L | all year | 005 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ .63 lb/d | all year | 005 |
| BOD, 5-day, 20 deg. C | 7-day average | ≤ .94 lb/d | all year | 005 |
| pH | daily minimum | ≥ 6.5 SU | all year | 005 |
| pH | daily minimum | ≥ 6.5 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| pH | daily maximum | ≤ 9 SU | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 005 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year | 005 |
| Solids, total suspended | monthly average | ≤ .63 lb/d | all year | 005 |
| Solids, total suspended | monthly maximum | ≤ 100 lb/d | all year | 005 |
| Solids, total suspended | 7-day average | ≤ .94 lb/d | all year | 005 |
| Solids, total suspended | daily maximum | ≤ 170 lb/d | all year | 005 |
| Oil & Grease | monthly maximum | ≤ 10 mg/L | all year | 005 |
| Oil & Grease | daily maximum | ≤ 15 mg/L | all year | 005 |
| Oil & Grease | monthly maximum | ≤ 33 lb/d | all year | 005 |
| Oil & Grease | daily maximum | ≤ 50 lb/d | all year | 005 |
| Total residual ooxidant-discharge time | daily maximum | report only (min/d) | all year | 005 |
| Oxidants, total residual | daily maximum | ≤ 38 ug/L | all year | 005 |
| Oxidants, total residual | daily maximum | ≤ 200 ug/L | all year | 005 |
| Oxidants, total residual | daily maximum | ≤ 50 ug/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 | monthly average | report only (MGD) | 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 | daily maximum | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | all year | 005 |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 005 |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year | 005 |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year | 005 |
| Mercury, total [as Hg] | 12-month average | ≤ 10 ng/L | all year | 005 |
| Mercury, total [as Hg] | 12-month average | ≤ .0056 lb/d | all year | 005 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 005 |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year | 005 |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year | 005 |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 27 Electric Services permits in Michigan.
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Your permit document is the final word. As JSON: /api/v1/permits/MI0000728 · MCP: https://passage-data.com/mcp