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Civic And Social Associations, Dexter, Michigan. NPDES permit MI0056405, in force until Oct 1, 2028. Last 12 months: over a limit 5 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | Phosphorus, total [as P], monthly average | .18 | ≤ .1 mg/L | 80% |
| May 2026 | Phosphorus, total [as P], monthly average | .18 | ≤ .12 lb/d | 50% |
| June 2026 | Phosphorus, total [as P], monthly average | .11 | ≤ .1 mg/L | 10% |
| July 2026 | Phosphorus, total [as P], monthly average | .17 | ≤ .1 mg/L | 70% |
| July 2026 | Phosphorus, total [as P], monthly average | .17 | ≤ .12 lb/d | 42% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 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 | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | May–Sep | 001 |
| Solids, total suspended | 7-day average | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, total suspended | 7-day average | ≤ 30 mg/L | May–Sep | 001 |
| Solids, total suspended | monthly average | ≤ 36 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 24 lb/d | May–Sep | 001 |
| Solids, total suspended | 7-day average | ≤ 54 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, total suspended | 7-day average | ≤ 36 lb/d | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .5 mg/L | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 22 mg/L | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7 mg/L | Oct, Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2 mg/L | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Oct, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .6 lb/d | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 27 lb/d | Apr | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.5 lb/d | Oct, Nov | 001 |
| Nitrogen, ammonia total [as N] | 7-day average | ≤ 2.4 lb/d | May–Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | Apr | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | Oct, Nov | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | monthly average | ≤ .1 mg/L | May–Sep | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | May–Sep | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 1.2 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | monthly average | ≤ .12 lb/d | May–Sep | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | May–Sep | 001 |
| Phosphorus, total [as P] | single sample | ≤ .08 mg/L | Sep | 001 |
| Phosphorus, total [as P] | single sample | ≤ .1 lb/d | Sep | 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 |
| 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 |
| Solids, total dissolved | daily maximum | report only (mg/L) | 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 | ≤ 4 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 | ≤ 10 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 | ≤ 4.8 lb/d | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 30 lb/d | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 12 lb/d | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | 7-day average | ≤ 48 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 % | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Solids, suspended percent removal | daily minimum | report only (%) | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 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 | 3.8 mg/L (Oct, Nov) | tighter | — | — |
| Nitrogen, ammonia total [as N], monthly average | 4.6 lb/d (Oct, Nov) | tighter | — | — |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 9 Membership Organizations permits in Michigan.
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Your permit document is the final word. As JSON: /api/v1/permits/MI0056405 · MCP: https://passage-data.com/mcp