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Sewerage Systems, Coolville, Ohio. NPDES permit OH0139815, in force until Apr 30, 2028. Last 12 months: over a limit 9 times (last March 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| March 2026 | 001 | BOD, carbonaceous [5 day, 20 C], monthly average | 11 | ≤ 10 mg/L | 10% |
| March 2026 | 001 | Nitrogen, ammonia total [as N], daily maximum | 16.8 | ≤ 13 mg/L | 29% |
| March 2026 | 001 | Nitrogen, ammonia total [as N], monthly average | 16.8 | ≤ 8.6 mg/L | 95% |
| March 2026 | 002 | BOD, carbonaceous [5 day, 20 C], monthly average | 10.9 | ≤ 10 mg/L | 9% |
| March 2026 | 002 | Nitrogen, ammonia total [as N], daily maximum | 16.8 | ≤ 13 mg/L | 29% |
| March 2026 | 002 | Nitrogen, ammonia total [as N], monthly average | 16.8 | ≤ 8.6 mg/L | 95% |
| March 2026 | 003 | BOD, carbonaceous [5 day, 20 C], monthly average | 10.9 | ≤ 10 mg/L | 9% |
| March 2026 | 003 | Nitrogen, ammonia total [as N], daily maximum | 14.4 | ≤ 13 mg/L | 11% |
| March 2026 | 003 | Nitrogen, ammonia total [as N], monthly average | 14.4 | ≤ 8.6 mg/L | 67% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 001 |
| Flow rate | monthly average | report only (gal/d) | all year | 001 |
| Flow rate | daily maximum | report only (gal/d) | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | Mar, Jun, Aug, Dec | 001 |
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec | 001 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Mar, Jun, Aug, Dec | 001 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Mar, Jun, Aug, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 2.5 kg/d | Mar, Jun, Aug, Dec | 001 |
| Solids, total suspended | weekly maximum | ≤ 3.75 kg/d | Mar, Jun, Aug, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | Jun, Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.6 mg/L | Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Jun, Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .354 kg/d | Jun, Aug | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.79 kg/d | Mar, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.71 kg/d | Jun, Aug | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2.71 kg/d | Mar, Dec | 001 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 001 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 001 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | Jun, Aug | 001 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | Jun, Aug | 001 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | Jun, Aug | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Mar, Jun, Aug, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 2.08 kg/d | Mar, Jun, Aug, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 3.12 kg/d | Mar, Jun, Aug, Dec | 001 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 002 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 002 |
| Flow rate | monthly average | report only (gal/d) | all year | 002 |
| Flow rate | daily maximum | report only (gal/d) | all year | 002 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | Mar, Jun, Aug, Dec | 002 |
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec | 002 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | monthly average | ≤ .27 kg/d | Mar, Jun, Aug, Dec | 002 |
| Solids, total suspended | weekly maximum | ≤ .41 kg/d | Mar, Jun, Aug, Dec | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.6 mg/L | Mar, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Mar, Dec | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .0387 kg/d | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .196 kg/d | Mar, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .296 kg/d | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .296 kg/d | Mar, Dec | 002 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 002 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 002 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | Jun, Aug | 002 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | Jun, Aug | 002 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | Jun, Aug | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Mar, Jun, Aug, Dec | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .23 kg/d | Mar, Jun, Aug, Dec | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ .34 kg/d | Mar, Jun, Aug, Dec | 002 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 003 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 003 |
| Flow rate | monthly average | report only (gal/d) | all year | 003 |
| Flow rate | daily maximum | report only (gal/d) | all year | 003 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 4 mg/L | Mar, Jun, Aug, Dec | 003 |
| pH | daily minimum | ≥ 6.5 SU | Mar, Jun, Aug, Dec | 003 |
| pH | daily maximum | ≤ 9 SU | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | monthly average | ≤ .82 kg/d | Mar, Jun, Aug, Dec | 003 |
| Solids, total suspended | weekly maximum | ≤ 1.23 kg/d | Mar, Jun, Aug, Dec | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.7 mg/L | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8.6 mg/L | Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .12 kg/d | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .59 kg/d | Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .89 kg/d | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .89 kg/d | Mar, Dec | 003 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 003 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 003 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | Jun, Aug | 003 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | Jun, Aug | 003 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | Jun, Aug | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 003 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Mar, Jun, Aug, Dec | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .68 kg/d | Mar, Jun, Aug, Dec | 003 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 1.02 kg/d | Mar, Jun, Aug, Dec | 003 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
Cited limits by parameter: Ohio's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0139815 · MCP: https://passage-data.com/mcp