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Sewage treatment plant, Put-In-Bay, Ohio. NPDES permit OH0022322, in force until Jun 30, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| 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 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 21 mg/L | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 31.5 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 39.8 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 59.7 kg/d | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 8.25 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 15.2 kg/d | all year | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 15.7 kg/d | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 34 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ .064 kg/d | all year | 001 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 001 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | May–Oct | 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 |
| Mercury, total low level | monthly average | ≤ 1.3 ng/L | Mar, Jun, Aug, Dec | 001 |
| Mercury, total low level | daily maximum | ≤ 1700 ng/L | Mar, Jun, Aug, Dec | 001 |
| Mercury, total low level | monthly average | ≤ .000003 kg/d | Mar, Jun, Aug, Dec | 001 |
| Mercury, total low level | daily maximum | ≤ .00322 kg/d | Mar, Jun, Aug, Dec | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 17.5 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 27.5 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 33.2 kg/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 52.1 kg/d | all year | 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 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 002 |
| pH | daily maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 21 mg/L | all year | 002 |
| Solids, total suspended | weekly maximum | ≤ 31.5 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 39.8 kg/d | all year | 002 |
| Solids, total suspended | weekly maximum | ≤ 59.7 kg/d | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 8 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 8.25 mg/L | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 15.2 kg/d | all year | 002 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 15.7 kg/d | all year | 002 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ 34 ug/L | all year | 002 |
| Copper, total recoverable | daily maximum | ≤ .064 kg/d | all year | 002 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 002 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | May–Oct | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Mercury, total low level | monthly average | ≤ 1.3 ng/L | Mar, Jun, Aug, Dec | 002 |
| Mercury, total low level | daily maximum | ≤ 1700 ng/L | Mar, Jun, Aug, Dec | 002 |
| Mercury, total low level | monthly average | ≤ .000003 kg/d | Mar, Jun, Aug, Dec | 002 |
| Mercury, total low level | daily maximum | ≤ .00322 kg/d | Mar, Jun, Aug, Dec | 002 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 002 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 17.5 mg/L | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 27.5 mg/L | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 33.2 kg/d | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 52.1 kg/d | all year | 002 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 586 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 586 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
| pH | daily minimum | report only (SU) | all year | 601 |
| pH | daily maximum | report only (SU) | all year | 601 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 601 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 601 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Aug, Dec | 601 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Aug, Dec | 601 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 601 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 601 |
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/OH0022322 · MCP: https://passage-data.com/mcp