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Petroleum Refining, major discharger, Canton, Ohio. NPDES permit OH0005657, in force until Mar 31, 2030. Last 12 months: no values over a limit, 2 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Flow, total | monthly average | report only (Mgal) | all year | 001 |
| Flow, total | daily maximum | report only (Mgal) | all year | 001 |
| Duration of discharge | monthly average | report only (hr) | all year | 001 |
| Duration of discharge | daily maximum | report only (hr) | all year | 001 |
| 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 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 29 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 55 mg/L | all year | 003 |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 187 kg/d | all year | 003 |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 354 kg/d | all year | 003 |
| Oxygen demand, chem. [low level] [COD] | monthly average | ≤ 191 mg/L | all year | 003 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | ≤ 382 mg/L | all year | 003 |
| Oxygen demand, chem. [low level] [COD] | monthly average | ≤ 1229 kg/d | all year | 003 |
| Oxygen demand, chem. [low level] [COD] | daily maximum | ≤ 2458 kg/d | all year | 003 |
| Solids, total suspended | monthly average | ≤ 24 mg/L | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 38 mg/L | all year | 003 |
| Solids, total suspended | monthly average | ≤ 154 kg/d | all year | 003 |
| Solids, total suspended | daily maximum | ≤ 245 kg/d | all year | 003 |
| Oil and grease, hexane extr method | monthly average | ≤ 9 mg/L | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 13 mg/L | all year | 003 |
| Oil and grease, hexane extr method | monthly average | ≤ 58 kg/d | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 84 kg/d | all year | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.6 mg/L | May–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 25.2 mg/L | May–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 26.4 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 003 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 23 kg/d | May–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 162 kg/d | May–Oct | 003 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 170 kg/d | Jan, Feb, Mar, Apr, Nov, Dec | 003 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Sulfide, total [as S] | monthly average | ≤ .13 mg/L | all year | 003 |
| Sulfide, total [as S] | daily maximum | ≤ .29 mg/L | all year | 003 |
| Sulfide, total [as S] | monthly average | ≤ .8 kg/d | all year | 003 |
| Sulfide, total [as S] | daily maximum | ≤ 1.9 kg/d | all year | 003 |
| Chloride [as Cl] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Chloride [as Cl] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Fluoride, total [as F] | daily maximum | report only (mg/L) | Mar, Jun, Sep, Dec | 003 |
| Selenium, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Selenium, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Sep, Dec | 003 |
| Chromium, total recoverable | monthly average | ≤ 77 ug/L | all year | 003 |
| Chromium, total recoverable | daily maximum | ≤ 650 ug/L | all year | 003 |
| Chromium, total recoverable | monthly average | ≤ .5 kg/d | all year | 003 |
| Chromium, total recoverable | daily maximum | ≤ 4.2 kg/d | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | ≤ 9 ug/L | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ 11 ug/L | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | ≤ .06 kg/d | all year | 003 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ .07 kg/d | all year | 003 |
| Phenolics, total recoverable | monthly average | ≤ 108 ug/L | all year | 003 |
| Phenolics, total recoverable | daily maximum | ≤ 216 ug/L | all year | 003 |
| Phenolics, total recoverable | monthly average | ≤ .7 kg/d | all year | 003 |
| Phenolics, total recoverable | daily maximum | ≤ 1.4 kg/d | all year | 003 |
| Rainfall | monthly average | report only (in) | all year | 003 |
| Rainfall | daily maximum | report only (in) | all year | 003 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 003 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 003 |
| Mercury, total low level | monthly average | report only (ng/L) | Mar, Jun, Sep, Dec | 003 |
| Mercury, total low level | daily maximum | report only (ng/L) | Mar, Jun, Sep, Dec | 003 |
| pH Range Excursion, Maximum Duration | daily maximum | report only (min) | all year | 003 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Jun, Dec | 003 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Jun, Dec | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | report only (tox chronic) | Jun, Dec | 003 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | report only (tox chronic) | Jun, Dec | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox acute) | Jun, Dec | 003 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Jun, Dec | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox chronic) | Jun, Dec | 003 |
| Toxicity [chronic], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox chronic) | Jun, Dec | 003 |
| pH, maximum | daily maximum | report only (SU) | all year | 003 |
| pH, minimum | daily minimum | report only (SU) | all year | 003 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 003 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 003 |
| pH range excursions, > 60 minutes | daily maximum | report only (occur/d) | all year | 003 |
| pH range excursions, monthly total accum | daily maximum | ≤ 446 min | all year | 003 |
| Flow rate | monthly average | report only (gal/d) | all year | 005 |
| Flow rate | daily maximum | report only (gal/d) | all year | 005 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 005 |
| pH | daily minimum | report only (SU) | all year | 005 |
| pH | daily maximum | report only (SU) | all year | 005 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 005 |
| Iron, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Toluene | daily maximum | report only (ug/L) | all year | 005 |
| Benzene | daily maximum | report only (ug/L) | all year | 005 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 005 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 005 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 005 |
| Flow rate | monthly average | report only (gal/d) | all year | 006 |
| Flow rate | daily maximum | report only (gal/d) | all year | 006 |
| Oxygen, dissolved [DO] | daily minimum | report only (mg/L) | all year | 006 |
| pH | daily minimum | report only (SU) | all year | 006 |
| pH | daily maximum | report only (SU) | all year | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 006 |
| Iron, total recoverable | monthly average | report only (ug/L) | all year | 006 |
| Iron, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Toluene | daily maximum | report only (ug/L) | all year | 006 |
| Benzene | daily maximum | report only (ug/L) | all year | 006 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 006 |
| Chlorine, total residual | daily maximum | report only (mg/L) | all year | 006 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 007 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 008 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 009 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 009 |
| pH | daily minimum | report only (SU) | all year | 010 |
| pH | daily maximum | report only (SU) | all year | 010 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 010 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 010 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 011 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 011 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 15 Petroleum Refining and Related Industries permits in Ohio.
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