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Sewage treatment plant, major discharger, Steubenville, Ohio. NPDES permit OH0027511 expired May 31, 2023; its limits still apply. Last 12 months: over a limit 13 times (last August 2026), 4 required values missing, 4 of 218 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| October 2025 | 001 | Peracetic Acid, daily maximum | 1290 | ≤ 440 ug/L | 193% |
| November 2025 | 001 | Peracetic Acid, daily maximum | 1280 | ≤ 440 ug/L | 191% |
| December 2025 | 001 | Peracetic Acid, daily maximum | 1000 | ≤ 440 ug/L | 127% |
| January 2026 | 001 | Peracetic Acid, daily maximum | 1050 | ≤ 440 ug/L | 139% |
| February 2026 | 001 | Peracetic Acid, daily maximum | 2200 | ≤ 440 ug/L | 400% |
| March 2026 | 001 | Peracetic Acid, daily maximum | 2700 | ≤ 440 ug/L | 514% |
| April 2026 | 001 | Peracetic Acid, daily maximum | 1850 | ≤ 440 ug/L | 320% |
| May 2026 | 001 | Peracetic Acid, daily maximum | 1660 | ≤ 440 ug/L | 277% |
| June 2026 | 001 | Peracetic Acid, daily maximum | 1550 | ≤ 440 ug/L | 252% |
| July 2026 | 001 | Peracetic Acid, daily maximum | 1350 | ≤ 440 ug/L | 207% |
| July 2026 | 090 | E. coli, MTEC-MF, weekly geometric mean | 401.56 | ≤ 240 MPN/100mL | 67% |
| August 2026 | 001 | Peracetic Acid, daily maximum | 1420 | ≤ 440 ug/L | 223% |
| August 2026 | 090 | E. coli, MTEC-MF, weekly geometric mean | 301.53 | ≤ 240 MPN/100mL | 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 | report only (mg/L) | 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 | ≤ 682 kg/d | all year | 001 |
| Solids, total suspended | weekly maximum | ≤ 1023 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 |
| 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 |
| 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, Aug, Dec | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 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 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 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 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | report only (#/100mL) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | report only (#/100mL) | Jan, Feb, Mar, Apr, Nov, Dec | 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 |
| Rainfall | monthly average | report only (in) | all year | 001 |
| Rainfall | daily maximum | report only (in) | all year | 001 |
| Flow, maximum during 24 hr period | monthly average | report only (MGD) | all year | 001 |
| Flow, maximum during 24 hr period | daily maximum | report only (MGD) | all year | 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 | 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, Aug, Dec | 001 |
| Cyanide, free available | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 001 |
| Peracetic Acid | daily maximum | ≤ 440 ug/L | all year | 001 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Jul | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Jul | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox acute) | Jul | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Jul | 001 |
| pH, maximum | daily maximum | ≤ 9 SU | all year | 001 |
| pH, minimum | daily minimum | ≥ 6.5 SU | 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 | ≤ 568 kg/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 909 kg/d | all year | 001 |
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | 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 |
| Bypass Volume | monthly average | report only (Mgal) | all year | 002 |
| Bypass Volume | daily maximum | report only (Mgal) | all year | 002 |
| Peracetic Acid | daily maximum | report only (ug/L) | all year | 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 |
| Bypass valve | monthly average | report only (occur/mo) | all year | 002 |
| Bypass valve | daily maximum | report only (occur/mo) | all year | 002 |
| Bypass of treatment | monthly average | report only (hr/mo) | all year | 002 |
| Bypass of treatment | daily maximum | report only (hr/mo) | all year | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | Jan, Apr, Jul, Oct | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 003 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | report only (#/100mL) | Jan, Apr, Jul, Oct | 003 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | report only (#/100mL) | Jan, Apr, Jul, Oct | 003 |
| Overflows | monthly average | report only (occur/mo) | all year | 003 |
| Overflows | daily maximum | report only (occur/mo) | all year | 003 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 003 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 003 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | Jan, Apr, Jul, Oct | 003 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 003 |
| Overflows | monthly average | report only (occur/mo) | all year | 004 |
| Overflows | daily maximum | report only (occur/mo) | all year | 004 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 004 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 004 |
| Overflows | monthly average | report only (occur/mo) | all year | 005 |
| Overflows | daily maximum | report only (occur/mo) | all year | 005 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 005 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 005 |
| Overflows | monthly average | report only (occur/mo) | all year | 006 |
| Overflows | daily maximum | report only (occur/mo) | all year | 006 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 006 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 006 |
| Overflows | monthly average | report only (occur/mo) | all year | 007 |
| Overflows | daily maximum | report only (occur/mo) | all year | 007 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 007 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 007 |
| Overflows | monthly average | report only (occur/mo) | all year | 008 |
| Overflows | daily maximum | report only (occur/mo) | all year | 008 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 008 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 008 |
| Overflows | monthly average | report only (occur/mo) | all year | 009 |
| Overflows | daily maximum | report only (occur/mo) | all year | 009 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 009 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 009 |
| Overflows | monthly average | report only (occur/mo) | all year | 010 |
| Overflows | daily maximum | report only (occur/mo) | all year | 010 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 010 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 010 |
| Overflows | monthly average | report only (occur/mo) | all year | 011 |
| Overflows | daily maximum | report only (occur/mo) | all year | 011 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 011 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 011 |
| Overflows | monthly average | report only (occur/mo) | all year | 012 |
| Overflows | daily maximum | report only (occur/mo) | all year | 012 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 012 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 012 |
| Overflows | monthly average | report only (occur/mo) | all year | 015 |
| Overflows | daily maximum | report only (occur/mo) | all year | 015 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 015 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 015 |
| Overflows | monthly average | report only (occur/mo) | all year | 016 |
| Overflows | daily maximum | report only (occur/mo) | all year | 016 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 016 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 016 |
| Overflows | monthly average | report only (occur/mo) | all year | 017 |
| Overflows | daily maximum | report only (occur/mo) | all year | 017 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 017 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 017 |
| Solids, total suspended | monthly average | report only (mg/L) | Jan, Apr, Jul, Oct | 018 |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 018 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | report only (#/100mL) | Jan, Apr, Jul, Oct | 018 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | report only (#/100mL) | Jan, Apr, Jul, Oct | 018 |
| 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 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | Jan, Apr, Jul, Oct | 018 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct | 018 |
| Overflows | monthly average | report only (occur/mo) | all year | 019 |
| Overflows | daily maximum | report only (occur/mo) | all year | 019 |
| Overflow volume [SS0 volume, CSO volume] | monthly average | report only (Mgal) | all year | 019 |
| Overflow volume [SS0 volume, CSO volume] | daily maximum | report only (Mgal) | all year | 019 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 090 |
| Coliform, fecal MF, MFC broth, 44.5 C | weekly geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Nov, Dec | 090 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 130 MPN/100mL | May–Oct | 090 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 240 MPN/100mL | May–Oct | 090 |
| Overflows | monthly average | report only (occur/mo) | all year | 300 |
| Overflows | daily maximum | report only (occur/mo) | all year | 300 |
| Biosolids weight indluding admixtures | monthly average | report only (dry ton) | Dec | 586 |
| Biosolids weight indluding admixtures | daily maximum | report only (dry ton) | Dec | 586 |
| 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 |
| Cyanide, total [as CN] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 601 |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 601 |
| Nickel, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Cadmium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Cadmium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Lead, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 601 |
| Lead, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 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 |
| Flow, maximum during 24 hr period | monthly average | report only (MGD) | all year | 601 |
| Flow, maximum during 24 hr period | daily maximum | report only (MGD) | 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 |
| 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 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | monthly average | report only (%) | Jul | 801 |
| %Effect Static Renewal 48Hr Acute Ceriodaphnia dubia | daily maximum | report only (%) | Jul | 801 |
| %Effect Static Renewal 96Hr Acute Pimephales promelas | monthly average | report only (%) | Jul | 801 |
| %Effect Static Renewal 96Hr Acute Pimephales promelas | daily maximum | report only (%) | Jul | 801 |
Cited limits by parameter: Ohio's rules and the federal ones.
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