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Sewage treatment plant, major discharger, Albion, Michigan. NPDES permit MI0022161, in force until Oct 1, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | May–Sep | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 3 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 1000 lb/d | all year | 001 |
| Solids, total suspended | 7-day average | ≤ 1500 lb/d | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 9 mg/L | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 300 lb/d | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | May–Sep | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 33 lb/d | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year | 001 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | all year | 001 |
| Sulfate, total [as SO4] | daily maximum | report only (mg/L) | all year | 001 |
| Cyanide [A] | daily maximum | report only (ug/L) | all year | 001 |
| Toxicity, choice of species | monthly average | ≤ 4.4 tox chronic | all year | 001 |
| Toxicity, choice of species | value | report only (tox chronic) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | daily maximum | ≤ 38 ug/L | all year | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | ≤ 1 tox acute | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year | 001 |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year | 001 |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | 7-day geometric mean | ≤ 400 #/100mL | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 15 mg/L | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 40 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 330 lb/d | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 830 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 500 lb/d | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 1300 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | minimum | ≥ 85 % | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | daily minimum | report only (%) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | daily minimum | report only (%) | all year | 001 |
| TU Static 24 Hr Acute Pimephales promelas | daily maximum | ≤ 1 tox acute | all year | 001 |
| Static 48 Hr Chronic Pimphales Promelas | monthly average | ≤ 4.4 tox chronic | all year | 001 |
| Static 48 Hr Chronic Pimphales Promelas | value | report only (tox chronic) | all year | 001 |
| Solids, total | monthly minimum | report only (%) | all year | SLD |
| Solids, total | monthly average | report only (%) | all year | SLD |
| Solids, total | monthly maximum | report only (%) | all year | SLD |
| Arsenic, dry weight | monthly minimum | report only (mg/kg) | all year | SLD |
| Arsenic, dry weight | monthly average | report only (mg/kg) | all year | SLD |
| Arsenic, dry weight | monthly maximum | ≤ 75 mg/kg | all year | SLD |
| Selenium, dry weight | monthly minimum | report only (mg/kg) | all year | SLD |
| Selenium, dry weight | monthly average | report only (mg/kg) | all year | SLD |
| Selenium, dry weight | monthly maximum | ≤ 100 mg/kg | all year | SLD |
| Copper, dry weight | monthly minimum | report only (mg/kg) | all year | SLD |
| Copper, dry weight | monthly average | report only (mg/kg) | all year | SLD |
| Copper, dry weight | monthly maximum | ≤ 4300 mg/kg | all year | SLD |
| Cadmium, dry weight | monthly minimum | report only (mg/kg) | all year | SLD |
| Cadmium, dry weight | monthly average | report only (mg/kg) | all year | SLD |
| Cadmium, dry weight | monthly maximum | ≤ 85 mg/kg | all year | SLD |
| Nitrogen, total Kjeldahl | monthly minimum | report only (mg/kg) | all year | SLD |
| Nitrogen, total Kjeldahl | monthly average | report only (mg/kg) | all year | SLD |
| Nitrogen, total Kjeldahl | monthly maximum | report only (mg/kg) | all year | SLD |
| Molybdenum, sludge, total, dry weight [as Mo] | monthly minimum | report only (mg/kg) | all year | SLD |
| Molybdenum, sludge, total, dry weight [as Mo] | monthly average | report only (mg/kg) | all year | SLD |
| Molybdenum, sludge, total, dry weight [as Mo] | monthly maximum | ≤ 75 mg/kg | all year | SLD |
| Zinc, sludge, total, dry weight [as Zn] | monthly minimum | report only (mg/kg) | all year | SLD |
| Zinc, sludge, total, dry weight [as Zn] | monthly average | report only (mg/kg) | all year | SLD |
| Zinc, sludge, total, dry weight [as Zn] | monthly maximum | ≤ 7500 mg/kg | all year | SLD |
| Lead, sludge, total, dry weight [as Pb] | monthly minimum | report only (mg/kg) | all year | SLD |
| Lead, sludge, total, dry weight [as Pb] | monthly average | report only (mg/kg) | all year | SLD |
| Lead, sludge, total, dry weight [as Pb] | monthly maximum | ≤ 840 mg/kg | all year | SLD |
| Nickel, sludge, total, dry weight [as Ni] | monthly minimum | report only (mg/kg) | all year | SLD |
| Nickel, sludge, total, dry weight [as Ni] | monthly average | report only (mg/kg) | all year | SLD |
| Nickel, sludge, total, dry weight [as Ni] | monthly maximum | ≤ 420 mg/kg | all year | SLD |
| Nitrogen, sludge, total, dry weight [as N] | monthly minimum | report only (mg/kg) | all year | SLD |
| Nitrogen, sludge, total, dry weight [as N] | monthly average | report only (mg/kg) | all year | SLD |
| Nitrogen, sludge, total, dry weight [as N] | monthly maximum | report only (mg/kg) | all year | SLD |
| Mercury, sludge, total, dry weight [as Hg] | monthly minimum | report only (mg/kg) | all year | SLD |
| Mercury, sludge, total, dry weight [as Hg] | monthly average | report only (mg/kg) | all year | SLD |
| Mercury, sludge, total, dry weight [as Hg] | monthly maximum | ≤ 57 mg/kg | all year | SLD |
| Potassium, sludge, total, dry weight [as K] | monthly minimum | report only (mg/kg) | all year | SLD |
| Potassium, sludge, total, dry weight [as K] | monthly average | report only (mg/kg) | all year | SLD |
| Potassium, sludge, total, dry weight [as K] | monthly maximum | report only (mg/kg) | all year | SLD |
| Phosphorus, sludge, total, dry weight [as P] | monthly minimum | report only (mg/kg) | all year | SLD |
| Phosphorus, sludge, total, dry weight [as P] | monthly average | report only (mg/kg) | all year | SLD |
| Phosphorus, sludge, total, dry weight [as P] | monthly maximum | report only (mg/kg) | all year | SLD |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Nitrogen, ammonia total [as N], monthly average | 210 lb/d (May–Sep) | tighter | — | — |
Cited limits by parameter: Michigan's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/MI0022161 · MCP: https://passage-data.com/mcp