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Sewage treatment plant, major discharger, Cuyahoga Hts., Ohio. NPDES permit OH0024651, in force until Jun 30, 2030. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Mercury, total low level, monthly average | 3.28 | ≤ 3.1 ng/L | 6% |
| August 2026 | pH, minimum, daily minimum | 4.9 | ≥ 6 SU | — |
| 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 | ≤ 16 mg/L | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 24 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 10598 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 15897 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 | ≤ 1.7 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.7 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 2.6 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 7.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1126 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3113 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 1722 kg/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 4670 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 | ≤ .7 mg/L | all year | 001 |
| Phosphorus, total [as P] | weekly maximum | ≤ 1.1 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 464 kg/d | all year | 001 |
| Phosphorus, total [as P] | weekly maximum | ≤ 729 kg/d | 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) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 001 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| E. coli, MTEC-MF | monthly geometric mean | report only (MPN/100mL) | May–Oct | 001 |
| E. coli, MTEC-MF | daily maximum | report only (MPN/100mL) | May–Oct | 001 |
| Polychlorinated biphenyls [PCBs] | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 001 |
| Polychlorinated biphenyls [PCBs] | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 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 | ≤ .021 mg/L | May–Oct | 001 |
| Mercury, total low level | monthly average | ≤ 3.1 ng/L | all year | 001 |
| Mercury, total low level | daily maximum | ≤ 1700 ng/L | all year | 001 |
| Mercury, total low level | monthly average | ≤ .0021 kg/d | all year | 001 |
| Mercury, total low level | daily maximum | ≤ 1.1 kg/d | all year | 001 |
| Cyanide, free available | monthly average | report only (ug/L) | all year | 001 |
| Cyanide, free available | daily maximum | report only (ug/L) | all year | 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) | Mar, Jun, Sep, Dec | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Mar, Jun, Sep, Dec | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox chronic) | Mar, Jun, Sep, Dec | 001 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox chronic) | Mar, Jun, Sep, Dec | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6 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 | ≤ 10 mg/L | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 16 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 24 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 6620 kg/d | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10598 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 9936 kg/d | May–Oct | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15897 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrogen, ammonia 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 |
| E. coli, MTEC-MF | monthly geometric mean | report only (MPN/100mL) | May–Oct | 002 |
| E. coli, MTEC-MF | daily maximum | report only (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 |
| Chlorine, total residual | daily maximum | report only (mg/L) | May–Oct | 002 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 002 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 002 |
| Duration of discharge | monthly average | report only (hr) | all year | 002 |
| Duration of discharge | daily maximum | report only (hr) | all year | 002 |
| pH | daily minimum | report only (SU) | all year | 093 |
| pH | daily maximum | report only (SU) | all year | 093 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 093 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 093 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 093 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 093 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 093 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 093 |
| E. coli, MTEC-MF | monthly geometric mean | report only (MPN/100mL) | May–Oct | 093 |
| E. coli, MTEC-MF | daily maximum | report only (MPN/100mL) | May–Oct | 093 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 093 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 093 |
| Chlorine, total residual | daily maximum | report only (mg/L) | May–Oct | 093 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 093 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 093 |
| Duration of discharge | monthly average | report only (hr) | all year | 093 |
| Duration of discharge | daily maximum | report only (hr) | all year | 093 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | May–Oct | 099 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | May–Oct | 099 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | May–Oct | 099 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | May–Oct | 099 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Arsenic, dry weight | monthly average | report only (mg/kg) | all year | 585 |
| Arsenic, dry weight | daily maximum | report only (mg/kg) | all year | 585 |
| Beryllium, in bottom deposits [dry wgt] | monthly average | report only (mg/kg) | all year | 585 |
| Beryllium, in bottom deposits [dry wgt] | daily maximum | report only (mg/kg) | all year | 585 |
| Chromium, total in bot dep [wet wgt] | monthly average | report only (mg/kg) | all year | 585 |
| Chromium, total in bot dep [wet wgt] | daily maximum | report only (mg/kg) | all year | 585 |
| Cadmium, in bottom deposits [dry wgt] | monthly average | report only (mg/kg) | all year | 585 |
| Cadmium, in bottom deposits [dry wgt] | daily maximum | report only (mg/kg) | all year | 585 |
| Lead, total dry weight [as Pb] | monthly average | report only (mg/kg) | all year | 585 |
| Lead, total dry weight [as Pb] | daily maximum | report only (mg/kg) | all year | 585 |
| Nickel, tot in bottom deposits [dry wgt] | monthly average | report only (mg/kg) | all year | 585 |
| Nickel, tot in bottom deposits [dry wgt] | daily maximum | report only (mg/kg) | all year | 585 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | all year | 585 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | all year | 585 |
| Mercury, tot in bot deposits [dry wgt] | monthly average | report only (mg/kg) | all year | 585 |
| Mercury, tot in bot deposits [dry wgt] | daily maximum | report only (mg/kg) | all year | 585 |
| 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 weight, dry | monthly average | report only (dry ton) | Dec | 588 |
| Sludge weight, dry | daily maximum | report only (dry ton) | Dec | 588 |
| 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) | all year | 601 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year | 601 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Lead, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 601 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 601 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 601 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 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 |
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year | 801 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year | 801 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 801 |
| pH | daily minimum | report only (SU) | all year | 801 |
| pH | daily maximum | report only (SU) | all year | 801 |
| 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 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 801 |
| Nitrogen, Kjeldahl, 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 (%) | Mar, Jun, Sep, Dec | 801 |
| %Effect Static Renewal 96Hr Acute Pimephales promelas | daily maximum | report only (%) | Mar, Jun, Sep, Dec | 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 (%) | Mar, Jun, Sep, Dec | 801 |
| %Effect Static Renewal 7Day Chronic Pimephales promelas | daily maximum | report only (%) | Mar, Jun, Sep, Dec | 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 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | 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 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 901 |
| Nitrogen, Kjeldahl, 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 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Toxicity [acute], Pimephales promelas [Fathead Minnow], daily maximum | 1 tox acute (Mar, Jun, Sep, Dec) | new | — | — |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow], monthly average | 1.1 tox chronic (Mar, Jun, Sep, Dec) | new | — | — |
Cited limits by parameter: Ohio's rules and the federal ones.
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