NPDES permit MI0037451 · 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. Most often over: BOD, carbonaceous [5 day, 20 C] (4), pH (1), Phosphorus, total [as P] (1).
Reports are due about 21 days after each monitoring period ends (the most common figure among MI permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | all year |
| 001 | Oxygen, dissolved [DO] | DAILY MN | >= 7 mg/L | all year |
| 001 | pH | DAILY MN | >= 6.5 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 20 mg/L | all year |
| 001 | Solids, total suspended | DAILY MX | <= 30 mg/L | all year |
| 001 | Solids, total suspended | MO AVG | <= 280 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 550 lb/d | all year |
| 001 | Oil & Grease | MO AVG | report only | all year |
| 001 | Oil & Grease | DAILY MX | report only | all year |
| 001 | Oil & Grease | MO AVG | <= 86 lb/d | all year |
| 001 | Oil & Grease | DAILY MX | <= 170 lb/d | all year |
| 001 | Nitrogen, total [as N] | MO AVG | report only | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, total [as N] | MO AVG | <= 790 lb/d | all year |
| 001 | Nitrogen, total [as N] | DAILY MX | <= 1100 lb/d | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .5 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 4 mg/L | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 4.7 mg/L | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 9.2 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 73 lb/d | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 37 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 86 lb/d | Jan, Feb, Mar, 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 | <= 13 lb/d | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Sodium, total [as Na] | 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 | Toxicity, choice of species | MO AVG | report only | all year |
| 001 | Toxicity, choice of species | VALUE | 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 | Chlorine, total residual | DAILY MX | <= 38 ug/L | all year |
| 001 | Toxicity [acute], Ceriodaphnia dubia | MO AVG | report only | all year |
| 001 | Solids, total dissolved | MO AVG | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Solids, total dissolved | MO AVG | report only | all year |
| 001 | Solids, total dissolved | DAILY MX | report only | all year |
| 001 | Coliform, fecal general | MO AVG | <= 200 #/100mL | all year |
| 001 | Coliform, fecal general | DAILY MX | <= 400 #/100mL | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 4 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 10 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 10 mg/L | Jan, Feb, Mar, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 70 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 180 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 180 lb/d | Jan, Feb, Mar, Dec |
| 001 | Outfall observation,visual, y/n response | VALUE | report only | all year |
| 001 | TU Static 24 Hr Acute Pimephales promelas | MO AVG | <= 1 tox acute | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | MO AVG | <= 1 tox chronic | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | VALUE | report only | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states