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Sewage treatment plant, Elida, Ohio. NPDES permit OH0024996, in force until Jun 30, 2028. Last 12 months: over a limit 13 times (last April 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | BOD, carbonaceous [5 day, 20 C], monthly average | 34.95 | ≤ 25 mg/L | 40% |
| November 2025 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 102.7 | ≤ 75.7 kg/d | 36% |
| November 2025 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 80.64 | ≤ 40 mg/L | 102% |
| November 2025 | Solids, total suspended, weekly maximum | 48.3 | ≤ 45 mg/L | 7% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 47.68 | ≤ 25 mg/L | 91% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 61.84 | ≤ 47.4 kg/d | 30% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 70.46 | ≤ 40 mg/L | 76% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 91.86 | ≤ 75.7 kg/d | 21% |
| February 2026 | Oil and grease, hexane extr method, daily maximum | 18.38 | ≤ 10 mg/L | 84% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 54.7 | ≤ 47.4 kg/d | 15% |
| March 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 97.51 | ≤ 75.7 kg/d | 29% |
| April 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 56.25 | ≤ 47.4 kg/d | 19% |
| April 2026 | Solids, total suspended, monthly average | 74 | ≤ 56.8 kg/d | 30% |
| 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 | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 56.8 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 85.2 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 | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia 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) | Mar, Jun, Aug, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | Jun, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | 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 |
| Mercury, total low level | monthly average | ≤ 9.35 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 | ≤ .000018 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 | ≤ 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 | ≤ 47.4 kg/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 75.7 kg/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Bypass Volume | monthly average | report only (Mgal) | all year | 004 |
| Bypass Volume | daily maximum | report only (Mgal) | all year | 004 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 004 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 004 |
| Bypass valve | monthly average | report only (occur/mo) | all year | 004 |
| Bypass valve | daily maximum | report only (occur/mo) | all year | 004 |
| Bypass of treatment | monthly average | report only (hr/mo) | all year | 004 |
| Bypass of treatment | daily maximum | report only (hr/mo) | all year | 004 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Nitrogen, ammonia in bottom deposits | monthly average | report only (mg/kg) | Dec | 581 |
| Nitrogen, ammonia in bottom deposits | daily maximum | report only (mg/kg) | Dec | 581 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/kg) | Dec | 581 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/kg) | Dec | 581 |
| Phosphorous, total, in bottom deposits | monthly average | report only (mg/kg) | Dec | 581 |
| Phosphorous, total, in bottom deposits | daily maximum | report only (mg/kg) | Dec | 581 |
| Potassium, in bottom deposits | monthly average | report only (mg/kg) | Dec | 581 |
| Potassium, in bottom deposits | daily maximum | report only (mg/kg) | Dec | 581 |
| Arsenic, dry weight | daily maximum | ≤ 75 mg/kg | Dec | 581 |
| Cadmium, in bottom deposits [dry wgt] | daily maximum | ≤ 85 mg/kg | Dec | 581 |
| Copper in bottom deposits [dry wgt] | daily maximum | ≤ 4300 mg/kg | Dec | 581 |
| Lead, total dry weight [as Pb] | daily maximum | ≤ 840 mg/kg | Dec | 581 |
| Nickel, tot in bottom deposits [dry wgt] | daily maximum | ≤ 420 mg/kg | Dec | 581 |
| Zinc in bottom deposits [dry wgt] | daily maximum | ≤ 7500 mg/kg | Dec | 581 |
| Selenium, dry weight | daily maximum | ≤ 100 mg/kg | Dec | 581 |
| Fecal coliform | daily maximum | ≤ 2000000 MPN/g | Dec | 581 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 581 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 581 |
| Sludge weight, dry | monthly average | report only (dry ton) | Dec | 581 |
| Sludge weight, dry | daily maximum | report only (dry ton) | Dec | 581 |
| Mercury, tot in bot deposits [dry wgt] | daily maximum | ≤ 57 mg/kg | Dec | 581 |
| Molybdenum, sludge, total, dry weight [as Mo] | daily maximum | ≤ 75 mg/kg | Dec | 581 |
| 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 |
| 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 plus nitrate in bottom deposits | monthly average | report only (mg/kg) | Mar, Jun, Aug, Dec | 801 |
| Nitrite plus nitrate in bottom deposits | daily maximum | report only (mg/kg) | 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) | all year | 901 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 901 |
| pH | daily minimum | report only (SU) | all year | 901 |
| pH | daily maximum | report only (SU) | all year | 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| BOD, carbonaceous [5 day, 20 C], monthly average | 10 mg/L | tighter | 17.42 mg/L (12 values) | 1.74× |
| BOD, carbonaceous [5 day, 20 C], weekly maximum | 15 mg/L | tighter | 20.27 mg/L (12 values) | 1.35× |
| Nitrogen, ammonia total [as N], monthly average | 3 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | new | 15.26 mg/L (6 values) | 5.09× |
| Phosphorus, total [as P], monthly average | 1 mg/L | new | 1.865 mg/L (12 values) | 1.86× |
| Solids, total suspended, monthly average | 12 mg/L | tighter | 14.05 mg/L (12 values) | 1.17× |
| Solids, total suspended, weekly maximum | 18 mg/L | tighter | 19.5 mg/L (12 values) | 1.08× |
| BOD, carbonaceous [5 day, 20 C], monthly average | 30 kg/d | tighter | 18.41 kg/d (12 values) | 0.614× |
| BOD, carbonaceous [5 day, 20 C], weekly maximum | 45 kg/d | tighter | 28.39 kg/d (12 values) | 0.631× |
| Chromium, hexavalent dissolved [as Cr], daily maximum | 31 ug/L (Jun, Dec) | new | — | — |
| Chromium, hexavalent dissolved [as Cr], daily maximum | 0.094 kg/d (Jun, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 3 kg/d (May–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], monthly average | 1 mg/L (May–Oct) | new | 0.0815 mg/L (6 values) | 0.0815× |
| Nitrogen, ammonia total [as N], monthly average | 9.1 kg/d (Jan, Feb, Mar, Apr, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], weekly maximum | 4.5 kg/d (May–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], weekly maximum | 1.5 mg/L (May–Oct) | new | — | — |
| Nitrogen, ammonia total [as N], weekly maximum | 4.5 mg/L (Jan, Feb, Mar, Apr, Nov, Dec) | new | — | — |
| Nitrogen, ammonia total [as N], weekly maximum | 14 kg/d (Jan, Feb, Mar, Apr, Nov, Dec) | new | — | — |
| Phosphorus, total [as P], monthly average | 3 kg/d | new | — | — |
| Phosphorus, total [as P], weekly maximum | 4.5 kg/d | new | — | — |
| Phosphorus, total [as P], weekly maximum | 1.5 mg/L | new | — | — |
| Solids, total suspended, monthly average | 36 kg/d | tighter | 16.95 kg/d (12 values) | 0.471× |
| Solids, total suspended, weekly maximum | 55 kg/d | tighter | 26 kg/d (12 values) | 0.473× |
Cited limits by parameter: Ohio's rules and the federal ones.
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