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Cold Finishing Of Steel Shapes, major discharger, Coshocton, Ohio. NPDES permit OH0004260, in force until Oct 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| 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 |
| Oil and grease [soxhlet extr.] tot. | monthly average | report only (mg/L) | all year | 001 |
| Oil and grease [soxhlet extr.] tot. | 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 |
| Fluoride, total [as F] | monthly average | report only (mg/L) | all year | 001 |
| Fluoride, total [as F] | 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 |
| 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 |
| Oxidants, total residual | monthly average | report only (mg/L) | Mar, Jun, Sep, Dec | 001 |
| Oxidants, total residual | daily maximum | report only (mg/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 |
| Mercury, total low level | monthly average | report only (ng/L) | Jun, Dec | 001 |
| Mercury, total low level | daily maximum | report only (ng/L) | Jun, Dec | 001 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Jun | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Jun | 001 |
| pH, maximum | daily maximum | report only (SU) | all year | 001 |
| pH, minimum | daily minimum | report only (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 |
| pH range excursions, > 60 minutes | daily maximum | ≤ 0 occur/d | all year | 001 |
| pH range excursions, monthly total accum | daily maximum | ≤ 446 min | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Sludge weight, dry | monthly average | report only (dry ton) | Dec | 588 |
| Sludge weight, dry | daily maximum | report only (dry ton) | Dec | 588 |
| 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 | ≤ 295 kg/d | all year | 601 |
| Solids, total suspended | daily maximum | ≤ 689 kg/d | all year | 601 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 77 kg/d | all year | 601 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 232 kg/d | all year | 601 |
| Nickel, total recoverable | monthly average | ≤ 2.92 kg/d | all year | 601 |
| Nickel, total recoverable | daily maximum | ≤ 8.75 kg/d | all year | 601 |
| Chromium, total recoverable | monthly average | ≤ 3.89 kg/d | all year | 601 |
| Chromium, total recoverable | daily maximum | ≤ 9.73 kg/d | 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] | daily maximum | ≤ .22 kg/d | all year | 601 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 601 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 601 |
| Flow rate | monthly average | report only (gal/d) | all year | 602 |
| Flow rate | daily maximum | report only (gal/d) | all year | 602 |
| pH | daily minimum | report only (SU) | all year | 602 |
| pH | daily maximum | report only (SU) | all year | 602 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 602 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 602 |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year | 602 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year | 602 |
| Coliform, fecal MF, MFC broth, 44.5 C | monthly geometric mean | ≤ 1000 #/100mL | May–Oct | 602 |
| Coliform, fecal MF, MFC broth, 44.5 C | daily maximum | ≤ 2000 #/100mL | May–Oct | 602 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 602 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 40 mg/L | all year | 602 |
| pH | daily minimum | report only (SU) | all year | 603 |
| pH | daily maximum | report only (SU) | all year | 603 |
| Solids, total suspended | monthly average | ≤ 256 kg/d | all year | 603 |
| Solids, total suspended | daily maximum | ≤ 597 kg/d | all year | 603 |
| Oil and grease [soxhlet extr.] tot. | monthly average | ≤ 77 kg/d | all year | 603 |
| Oil and grease [soxhlet extr.] tot. | daily maximum | ≤ 232 kg/d | all year | 603 |
| Nickel, total recoverable | monthly average | ≤ 2.53 kg/d | all year | 603 |
| Nickel, total recoverable | daily maximum | ≤ 7.55 kg/d | all year | 603 |
| Chromium, total recoverable | monthly average | ≤ 3.36 kg/d | all year | 603 |
| Chromium, total recoverable | daily maximum | ≤ 8.44 kg/d | all year | 603 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 603 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 603 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | ≤ .22 kg/d | all year | 603 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 603 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 603 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Oxidants, total residual, daily maximum | 0.0048 mg/L (Mar, Jun, Sep, Dec) | new | — | — |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 56 Primary Metal Industries permits in Ohio.
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On EPA ECHO: Facility report · DMR history
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