NPDES permit MI0000027 · Major NON-POTW · effective, expires 2026-10-01 · EPA's file as of 2026-09-19
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Last period with anything received: 2026-07-31.
Reports are due about 21 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Flow rate | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Oxygen, dissolved [DO] | DAILY MN | = 6 mg/L | all year |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | report only | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MO MAX | report only | Sep |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | Jul, Aug |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | Jun |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | report only | Sep |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 12000 lb/d | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | MO AVG | <= 9000 lb/d | Sep |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 19000 lb/d | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 8690 lb/d | Jul, Aug |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 11540 lb/d | Jun |
| 001 | BOD, 5-day, 20 deg. C | DAILY MX | <= 15000 lb/d | Sep |
| 001 | pH | DAILY MN | >= 6 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | report only | Jul, Aug, Sep |
| 001 | Solids, total suspended | DAILY MX | report only | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | report only | Jul, Aug, Sep |
| 001 | Solids, total suspended | MO AVG | <= 28000 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 24000 lb/d | Jul, Aug, Sep |
| 001 | Solids, total suspended | DAILY MX | <= 45000 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 32000 lb/d | Jul, Aug, Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 2.1 mg/L | Jul, Aug |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 3 mg/L | Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 2.7 mg/L | Sep |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 3.2 mg/L | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Phosphorus, total [as P] | MO AVG | <= 420 lb/d | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Chloride [as Cl] | DAILY MX | report only | all year |
| 001 | Sulfate, total [as SO4] | DAILY MX | report only | all year |
| 001 | Cyanide [A] | DAILY MX | report only | all year |
| 001 | Cyanide [A] | DAILY MX | report only | all year |
| 001 | Toxicity, choice of species | MO AVG | = 2.2 tox chronic | all year |
| 001 | Toxicity, choice of species | VALUE | report only | all year |
| 001 | 1,2,3,7,8-Pentachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | 1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | 1,2,3,7,8-Pentachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 2,3,4,7,8-Pentachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,4,7,8-Hexachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,6,7,8-Hexachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,7,8,9-Hexachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 2,3,4,6,7,8-Hexachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,4,6,7,8-Heptachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,4,7,8,9-Heptachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | Chloroform | MO AVG | <= 9.4 lb/d | all year |
| 001 | Chloroform | DAILY MX | <= 15.7 lb/d | all year |
| 001 | Chlorobenzene | MO AVG | = 40 ug/L | all year |
| 001 | Chlorobenzene | DAILY MX | report only | all year |
| 001 | Chlorobenzene | MO AVG | = 17 lb/d | all year |
| 001 | Chlorobenzene | DAILY MX | report only | all year |
| 001 | 2,4,6-Trichlorophenol | DAILY MX | < 2.5 ug/L | all year |
| 001 | 2,3,7,8-Tetrachlorodibenzo-p-dioxin | DAILY MX | < 10 pg/L | all year |
| 001 | 2,3,7,8-TCDD TEC | DAILY MX | report only | all year |
| 001 | 2,3,7,8-TCDD TEC | DAILY MX | report only | all year |
| 001 | 2,3,7,8-Tetrachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | 2,3,7,8-Tetrachlorodibenzofuran | DAILY MX | < 10 pg/L | all year |
| 001 | Pentachlorophenol | DAILY MX | < 5 ug/L | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | 3,4,6-Trichloroguaiacol | DAILY MX | < 2.5 ug/L | all year |
| 001 | 3,4,6-Trichlorocatechol | DAILY MX | < 5 ug/L | all year |
| 001 | 1,2,3,4,6,7,8,9-Octachlorodibenzofuran | DAILY MX | report only | all year |
| 001 | Operation of turbines | VALUE | report only | Jul, Aug, Sep |
| 001 | Octachlorodibenzo-p-dioxin | DAILY MX | report only | all year |
| 001 | 3,4,5-Trichloroguaiacol | DAILY MX | < 2.5 ug/L | all year |
| 001 | Toxicity [acute], Ceriodaphnia dubia | DAILY MX | = 1 tox acute | all year |
| 001 | Mercury, total [as Hg] | MO AVG | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 001 | Mercury, total [as Hg] | MO AVG | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 001 | Mercury, total [as Hg] | 1D | = 4 ng/L | all year |
| 001 | Mercury, total [as Hg] | 1D | = .0017 lb/d | all year |
| 001 | 3,4,5-Trichlorocatechol | DAILY MX | < 5 ug/L | all year |
| 001 | Tetrachloroguaiacol | DAILY MX | < 5 ug/L | all year |
| 001 | Tetrachlorocatechol | DAILY MX | < 5 ug/L | all year |
| 001 | Trichlorosyringol | DAILY MX | < 2.5 ug/L | all year |
| 001 | 4,5,6-Trichloroguaiacol | DAILY MX | < 2.5 ug/L | all year |
| 001 | Coliform, fecal general | MO AVG | = 200 #/100mL | all year |
| 001 | Coliform, fecal general | DAILY MX | = 400 #/100mL | all year |
| 001 | 2,4,5-Trichlorophenol | DAILY MX | < 2.5 ug/L | all year |
| 001 | 2,3,4,6-Tetrachlorophenol | DAILY MX | < 2.5 ug/L | all year |
| 001 | Adsorbable organic halides [AOX] | MO AVG | <= 1410 lb/d | all year |
| 001 | Adsorbable organic halides [AOX] | DAILY MX | <= 2160 lb/d | all year |
| 001 | Outfall observation,visual, y/n response | VALUE | report only | all year |
| 001 | TU Static 24 Hr Acute Pimephales promelas | DAILY MX | = 1 tox acute | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | MO AVG | = 2.2 tox chronic | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | VALUE | report only | all year |
| 002 | Temperature, water deg. fahrenheit | MO AVG | <= 82 deg F | Mar |
| 002 | Temperature, water deg. fahrenheit | MO AVG | <= 73 deg F | Feb |
| 002 | Temperature, water deg. fahrenheit | MO AVG | <= 84 deg F | Dec |
| 002 | Temperature, water deg. fahrenheit | MO AVG | <= 77 deg F | Jan |
| 002 | Temperature, water deg. fahrenheit | DAILY MX | <= 95 deg F | Mar |
| 002 | Temperature, water deg. fahrenheit | DAILY MX | <= 95 deg F | Feb |
| 002 | Temperature, water deg. fahrenheit | DAILY MX | <= 95 deg F | Dec |
| 002 | Temperature, water deg. fahrenheit | DAILY MX | <= 95 deg F | Jan |
| 002 | Temperature, water deg. fahrenheit | DAILY MX | <= 95 deg F | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 002 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 002 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 002 | Outfall observation,visual, y/n response | VALUE | report only | all year |
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