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Sewerage Systems, Amesville, Ohio. NPDES permit OH0135208, in force until Jul 31, 2029. Last 12 months: over a limit 8 times (last August 2026), 4 of 45 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| May 2026 | 001 | E. coli, MTEC-MF, monthly geometric mean | 1660 | ≤ 126 MPN/100mL | 1217% |
| May 2026 | 001 | E. coli, MTEC-MF, weekly geometric mean | 1660 | ≤ 284 MPN/100mL | 485% |
| May 2026 | 001 | Nitrogen, ammonia total [as N], monthly average | 4.2 | ≤ 2 mg/L | 110% |
| May 2026 | 003 | BOD, carbonaceous [5 day, 20 C], monthly average | 12 | ≤ 10 mg/L | 20% |
| June 2026 | 003 | Nitrogen, ammonia total [as N], monthly average | 5 | ≤ 2 mg/L | 150% |
| July 2026 | 001 | Nitrogen, ammonia total [as N], monthly average | 2.1 | ≤ 2 mg/L | 5% |
| August 2026 | 003 | Nitrogen, ammonia total [as N], monthly average | 3.3 | ≤ 2 mg/L | 65% |
| August 2026 | 003 | Oxygen, dissolved [DO], daily minimum | 3.65 | ≥ 4 mg/L | 9% |
| 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 | 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 | ≤ 12 mg/L | Jan, Mar, May, Jul, Sep, Nov | 001 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Jan, Mar, May, Jul, Sep, Nov | 001 |
| Solids, total suspended | monthly average | ≤ .83 kg/d | Jan, Mar, May, Jul, Sep, Nov | 001 |
| Solids, total suspended | weekly maximum | ≤ 1.24 kg/d | Jan, Mar, May, Jul, Sep, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | May, Jul, Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 mg/L | Jan, Mar, Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | May, Jul, Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 13 mg/L | Jan, Mar, Nov | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .138 kg/d | May, Jul, Sep | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .827 kg/d | Jan, Mar, Nov | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .896 kg/d | May, Jul, Sep | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .896 kg/d | Jan, Mar, Nov | 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 | May, Jul, Sep | 001 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | May, Jul, Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Jan, Mar, May, Jul, Sep, Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Jan, Mar, May, Jul, Sep, Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .689 kg/d | Jan, Mar, May, Jul, Sep, Nov | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 1.04 kg/d | Jan, Mar, May, Jul, Sep, Nov | 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 | Jan, Apr, Jul, Oct | 002 |
| pH | daily minimum | ≥ 6.5 SU | Jan, Apr, Jul, Oct | 002 |
| pH | daily maximum | ≤ 9 SU | Jan, Apr, Jul, Oct | 002 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Jan, Apr, Jul, Oct | 002 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Jan, Apr, Jul, Oct | 002 |
| Solids, total suspended | monthly average | ≤ .287 kg/d | Jan, Apr, Jul, Oct | 002 |
| Solids, total suspended | weekly maximum | ≤ .43 kg/d | Jan, Apr, Jul, Oct | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 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 | ≤ .0477 kg/d | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .287 kg/d | Mar, Dec | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .31 kg/d | Jun, Aug | 002 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .31 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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Jan, Apr, Jul, Oct | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Jan, Apr, Jul, Oct | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .239 kg/d | Jan, Apr, Jul, Oct | 002 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ .358 kg/d | Jan, Apr, Jul, Oct | 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 | Feb, May, Aug, Nov | 003 |
| pH | daily minimum | ≥ 6.5 SU | Feb, May, Aug, Nov | 003 |
| pH | daily maximum | ≤ 9 SU | Feb, May, Aug, Nov | 003 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Feb, May, Aug, Nov | 003 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Feb, May, Aug, Nov | 003 |
| Solids, total suspended | monthly average | ≤ .259 kg/d | Feb, May, Aug, Nov | 003 |
| Solids, total suspended | weekly maximum | ≤ .389 kg/d | Feb, May, Aug, Nov | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2 mg/L | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 12 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 | ≤ .0432 kg/d | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .259 kg/d | Mar, Dec | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .281 kg/d | Jun, Aug | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ .281 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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Feb, May, Aug, Nov | 003 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Feb, May, Aug, Nov | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .216 kg/d | Feb, May, Aug, Nov | 003 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ .324 kg/d | Feb, May, Aug, Nov | 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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