NPDES permit MI0001708 · Minor 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 | Temperature, water deg. fahrenheit | MO AVG | report only | all year |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | all year |
| 001 | Oxygen, dissolved [DO] | DAILY MN | >= 6 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Oxygen, dissolved [DO] | DAILY MN | >= 5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | pH | DAILY MN | >= 6.5 SU | all year |
| 001 | pH | DAILY MX | <= 9 SU | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | MO AVG | <= 960 lb/d | all year |
| 001 | Solids, total suspended | DAILY MX | <= 1300 lb/d | all year |
| 001 | Solids, total suspended | MO MAX | report only | all year |
| 001 | Solids, total suspended | MA | <= 230000 lb/yr | Jul |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .5 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 3.8 mg/L | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2.8 mg/L | Apr |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 6.5 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 26 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 49 lb/d | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 36 lb/d | Apr |
| 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 | Chloride [as Cl] | MO AVG | <= 3700 mg/L | all year |
| 001 | Chloride [as Cl] | DAILY MX | <= 4700 mg/L | all year |
| 001 | Chloride [as Cl] | MO AVG | = 48000 lb/d | all year |
| 001 | Chloride [as Cl] | DAILY MX | = 61000 lb/d | 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 | 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 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 4 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | Jan, Feb, Mar, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | = 18 mg/L | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 13 mg/L | Jan, Feb, Mar, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 52 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | Jan, Feb, Mar, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | = 234 lb/d | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 130 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 169 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 | DAILY MX | report only | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | MO AVG | report only | all year |
| 001 | Static 48 Hr Chronic Pimphales Promelas | VALUE | report only | all year |
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