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Sewage treatment plant, Greenwich, Ohio. NPDES permit OH0020486, in force until May 31, 2031. Last 12 months: over a limit 18 times (last August 2026), 20 required values missing, 39 of 87 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | E. coli, MTEC-MF, monthly geometric mean | 959 | ≤ 126 MPN/100mL | 661% |
| October 2025 | E. coli, MTEC-MF, weekly geometric mean | 1720 | ≤ 284 MPN/100mL | 506% |
| October 2025 | Solids, total suspended, monthly average | 77 | ≤ 65 mg/L | 18% |
| October 2025 | Solids, total suspended, weekly maximum | 92 | ≤ 90 mg/L | 2% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 24.7 | ≤ 19 kg/d | 30% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 29.9 | ≤ 25 mg/L | 20% |
| March 2026 | Solids, total suspended, monthly average | 63 | ≤ 49.3 kg/d | 28% |
| March 2026 | Solids, total suspended, weekly maximum | 94 | ≤ 68.2 kg/d | 38% |
| April 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 42 | ≤ 30.3 kg/d | 39% |
| April 2026 | Solids, total suspended, weekly maximum | 81 | ≤ 68.2 kg/d | 19% |
| June 2026 | E. coli, MTEC-MF, monthly geometric mean | 513 | ≤ 126 MPN/100mL | 307% |
| June 2026 | E. coli, MTEC-MF, weekly geometric mean | 9210 | ≤ 284 MPN/100mL | 3143% |
| July 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 30 | ≤ 25 mg/L | 20% |
| July 2026 | Solids, total suspended, weekly maximum | 123 | ≤ 90 mg/L | 37% |
| August 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 24 | ≤ 19 kg/d | 26% |
| August 2026 | E. coli, MTEC-MF, monthly geometric mean | 434 | ≤ 126 MPN/100mL | 244% |
| August 2026 | E. coli, MTEC-MF, weekly geometric mean | 2190 | ≤ 284 MPN/100mL | 671% |
| August 2026 | Oxygen, dissolved [DO], daily minimum | 4.5 | ≥ 5 mg/L | 10% |
| 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 | ≤ 65 mg/L | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 90 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 49.3 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 68.2 kg/d | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.9 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 7.3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 4.35 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 11 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.2 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.5 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 3.3 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 8.3 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | 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 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Jun, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Jun, Dec | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Jun, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Jun, Dec | 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 |
| Solids, total dissolved- 180 deg. C | monthly average | ≤ 1559 mg/L | Jan, Mar, May, Jul, Sep, Nov | 001 |
| Solids, total dissolved- 180 deg. C | monthly average | ≤ 1200 kg/d | Jan, Mar, May, Jul, Sep, Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 40 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 19 kg/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 30.3 kg/d | all year | 001 |
| Overflows | monthly average | report only (occur/mo) | all year | 002 |
| Overflows | daily maximum | report only (occur/mo) | all year | 002 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 002 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 002 |
| Overflows | monthly average | report only (occur/mo) | all year | 018 |
| Overflows | daily maximum | report only (occur/mo) | all year | 018 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 018 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 018 |
| Overflows | monthly average | report only (occur/mo) | all year | 022 |
| Overflows | daily maximum | report only (occur/mo) | all year | 022 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 022 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 022 |
| Overflows | monthly average | report only (occur/mo) | all year | 023 |
| Overflows | daily maximum | report only (occur/mo) | all year | 023 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 023 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 023 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 601 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 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 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 801 |
| E. coli, MTEC-MF | monthly geometric mean | report only (MPN/100mL) | Jun–Aug | 801 |
| E. coli, MTEC-MF | daily maximum | report only (MPN/100mL) | Jun–Aug | 801 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | Mar, Jun, Aug, Dec | 901 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Mar, Jun, Aug, Dec | 901 |
| pH | daily minimum | report only (SU) | Mar, Jun, Aug, Dec | 901 |
| pH | daily maximum | report only (SU) | Mar, Jun, Aug, Dec | 901 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 901 |
| E. coli, MTEC-MF | monthly geometric mean | report only (MPN/100mL) | Jun–Aug | 901 |
| E. coli, MTEC-MF | daily maximum | report only (MPN/100mL) | Jun–Aug | 901 |
Cited limits by parameter: Ohio's rules and the federal ones.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0020486 · MCP: https://passage-data.com/mcp