NPDES permit MI0045713 · 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 | Mar |
| 001 | Temperature, water deg. fahrenheit | MO AVG | report only | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | Mar |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| 001 | Temperature, water deg. fahrenheit | MO AVG | report only | Mar |
| 001 | Temperature, water deg. fahrenheit | DAILY MX | report only | Mar |
| 001 | Thermal Discharge | MO AVG | <= .1 MBTU/hr | Mar |
| 001 | Thermal Discharge | DAILY MX | report only | Mar |
| 001 | Oxygen, dissolved [DO] | DAILY MN | >= 6 mg/L | Apr |
| 001 | Oxygen, dissolved [DO] | DAILY MN | >= 7 mg/L | Jan, Feb, Mar, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| 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 | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | MO AVG | <= 30 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 30 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | DAILY MX | <= 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | MO AVG | <= 17 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | MO AVG | <= 25 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 25 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Solids, total suspended | DAILY MX | <= 38 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.5 mg/L | Apr |
| 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 | <= 2.5 mg/L | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 10 mg/L | 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 | = 10 mg/L | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.3 lb/d | Apr |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= .4 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 2.1 lb/d | Jan, Feb, Mar, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 8.4 lb/d | Apr |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 1.7 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | = 8.4 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 | <= .8 lb/d | all year |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | all year |
| 001 | Cyanide [A] | MO AVG | = 5.2 ug/L | all year |
| 001 | Cyanide [A] | DAILY MX | = 44 ug/L | all year |
| 001 | Cyanide [A] | MO AVG | = .004 lb/d | all year |
| 001 | Cyanide [A] | DAILY MX | = .04 lb/d | all year |
| 001 | Equipment inspection - visual | 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 | Perfluorooctanoic acid (PFOA) | DAILY MX | report only | all year |
| 001 | Perfluorooctanesulfonate | DAILY MX | report only | all year |
| 001 | Perfluorobutanesulfonic acid (PFBS) | 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] | MO AVG | report only | all year |
| 001 | Mercury, total [as Hg] | DAILY MX | report only | all year |
| 001 | Mercury, total [as Hg] | 1D | <= 2 ng/L | all year |
| 001 | Mercury, total [as Hg] | 1D | <= .0000017 lb/d | all year |
| 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] | DAILY MX | <= 10 mg/L | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 60 mg/L | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 44 mg/L | Jan, Feb, Mar, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 3 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 8.3 lb/d | May, Jun, Jul, Aug, Sep, Oct, Nov |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 50 lb/d | Apr |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 37 lb/d | Jan, Feb, Mar, Dec |
| 001 | Outfall observation,visual, y/n response | VALUE | report only | all year |
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