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Sewage treatment plant, major discharger, Heath, Ohio. NPDES permit OH0025763, in force until Dec 31, 2028. Last 12 months: over a limit 10 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Nitrogen, ammonia total [as N], monthly average | 1.97 | ≤ 1.32 mg/L | 49% |
| October 2025 | Nitrogen, ammonia total [as N], weekly maximum | 3.65 | ≤ 1.98 mg/L | 84% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 8.79 | ≤ 7.75 mg/L | 13% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 108 | ≤ 99 kg/d | 9% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], weekly maximum | 29.3 | ≤ 11.6 mg/L | 153% |
| May 2026 | E. coli, MTEC-MF, weekly geometric mean | 598 | ≤ 284 MPN/100mL | 111% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 2.41 | ≤ 1.32 mg/L | 83% |
| May 2026 | Nitrogen, ammonia total [as N], weekly maximum | 33 | ≤ 16.9 kg/d | 95% |
| May 2026 | Nitrogen, ammonia total [as N], weekly maximum | 9.05 | ≤ 1.98 mg/L | 357% |
| May 2026 | Solids, total suspended, weekly maximum | 29.3 | ≤ 23.3 mg/L | 26% |
| 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 |
| Solids, total suspended | monthly average | ≤ 23.3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 15.6 mg/L | May–Oct | 001 |
| Solids, total suspended | weekly maximum | ≤ 34.9 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | weekly maximum | ≤ 23.3 mg/L | May–Oct | 001 |
| Solids, total suspended | monthly average | ≤ 199 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | monthly average | ≤ 133 kg/d | May–Oct | 001 |
| Solids, total suspended | weekly maximum | ≤ 298 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Solids, total suspended | weekly maximum | ≤ 199 kg/d | May–Oct | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.32 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 9.39 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 1.98 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 13.9 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 11.3 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 80 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 16.9 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 119 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 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 |
| Phosphate, ortho, dissolved [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphate, ortho, dissolved [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Nickel, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Mar, Jun, Sep, 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 |
| Chlorine, total residual | daily maximum | ≤ .026 mg/L | May–Oct | 001 |
| Mercury, total low level | monthly average | report only (ng/L) | all year | 001 |
| Mercury, total low level | daily maximum | report only (ng/L) | all year | 001 |
| Cyanide, free available | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Cyanide, free available | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Sep | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Sep | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | report only (tox chronic) | Sep | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | report only (tox chronic) | Sep | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox acute) | Sep | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Sep | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox chronic) | Sep | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox chronic) | Sep | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6.5 SU | all year | 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 | ≤ 7.75 mg/L | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 19.4 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 11.6 mg/L | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 31.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 66 kg/d | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 166 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 99 kg/d | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 265 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| 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 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 581 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 581 |
| Fecal coliform in sludge, CFU/gram | daily maximum | ≤ 2000000 CFU/g | 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 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 601 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 601 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 601 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 601 |
| Nickel, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Chromium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 601 |
| Mercury, total low level | monthly average | report only (ng/L) | all year | 601 |
| Mercury, total low level | daily maximum | report only (ng/L) | all year | 601 |
| pH, maximum | daily maximum | report only (SU) | all year | 601 |
| pH, minimum | daily minimum | report only (SU) | 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) | all year | 801 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 801 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 801 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 801 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 801 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 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 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | monthly average | report only (%) | Sep | 801 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | daily maximum | report only (%) | Sep | 801 |
| %Effect Static Renewal 96Hr Acute Pimephales promelas | monthly average | report only (%) | Sep | 801 |
| %Effect Static Renewal 96Hr Acute Pimephales promelas | daily maximum | report only (%) | Sep | 801 |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average | report only (%) | Sep | 801 |
| %Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | report only (%) | Sep | 801 |
| %Effect Static Renewal 7Day Chronic Pimephales promelas | monthly average | report only (%) | Sep | 801 |
| %Effect Static Renewal 7Day Chronic Pimephales promelas | daily maximum | report only (%) | Sep | 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) | all year | 901 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 901 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 901 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 901 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 901 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 901 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 901 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 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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