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Iron And Steel Forgings, Warren, Ohio. NPDES permit OH0133094 expired May 31, 2026; its limits still apply. Last 12 months: over a limit 11 times (last June 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Outfall | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|---|
| March 2026 | 602 | Oil and grease, hexane extr method, daily maximum | 10.7 | ≤ 10 mg/L | 7% |
| March 2026 | 602 | Solids, total suspended, daily maximum | 25 | ≤ 10 mg/L | 150% |
| March 2026 | 603 | BOD, carbonaceous [5 day, 20 C], monthly average | 13.7 | ≤ 10 mg/L | 37% |
| March 2026 | 603 | Nitrogen, ammonia total [as N], monthly average | .122 | ≤ .032 kg/d | 281% |
| March 2026 | 603 | Nitrogen, ammonia total [as N], monthly average | 22.5 | ≤ 3 mg/L | 650% |
| March 2026 | 603 | Nitrogen, ammonia total [as N], weekly maximum | .225 | ≤ .048 kg/d | 369% |
| March 2026 | 603 | Nitrogen, ammonia total [as N], weekly maximum | 41.3 | ≤ 4.5 mg/L | 818% |
| June 2026 | 603 | Nitrogen, ammonia total [as N], monthly average | .0367 | ≤ .011 kg/d | 234% |
| June 2026 | 603 | Nitrogen, ammonia total [as N], monthly average | 8.08 | ≤ 1 mg/L | 708% |
| June 2026 | 603 | Nitrogen, ammonia total [as N], weekly maximum | .0367 | ≤ .016 kg/d | 129% |
| June 2026 | 603 | Nitrogen, ammonia total [as N], weekly maximum | 8.08 | ≤ 1.5 mg/L | 439% |
| 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 |
| Flow rate | monthly average | report only (gal/d) | all year | 001 |
| Flow rate | daily maximum | report only (gal/d) | all year | 001 |
| pH | daily minimum | report only (SU) | all year | 001 |
| pH | daily maximum | report only (SU) | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 001 |
| Manganese, total [as Mn] | monthly average | report only (ug/L) | Mar, Sep | 001 |
| Manganese, total [as Mn] | daily maximum | report only (ug/L) | Mar, Sep | 001 |
| Zinc, total recoverable | daily maximum | ≤ 520 ug/L | Mar, Sep | 001 |
| Copper, total recoverable | monthly average | report only (ug/L) | Mar, Sep | 001 |
| Copper, total recoverable | daily maximum | report only (ug/L) | Mar, Sep | 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 |
| Sludge waste from secondary clarifiers | monthly average | report only (gal) | Dec | 588 |
| Sludge waste from secondary clarifiers | daily maximum | report only (gal) | Dec | 588 |
| Flow rate | monthly average | report only (gal/d) | all year | 601 |
| Flow rate | daily maximum | report only (gal/d) | all year | 601 |
| pH | daily minimum | ≥ 6.5 SU | all year | 601 |
| pH | daily maximum | ≤ 9 SU | all year | 601 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 601 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | 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 | ≥ 6.5 SU | all year | 602 |
| pH | daily maximum | ≤ 9 SU | all year | 602 |
| Solids, total suspended | daily maximum | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 602 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 602 |
| Solids, total dissolved- 180 deg. C | monthly average | report only (mg/L) | all year | 602 |
| Solids, total dissolved- 180 deg. C | daily maximum | report only (mg/L) | all year | 602 |
| Flow rate | monthly average | report only (gal/d) | all year | 603 |
| Flow rate | daily maximum | report only (gal/d) | all year | 603 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | Mar, Jun, Aug, Dec | 603 |
| pH | daily minimum | ≥ 6.5 SU | all year | 603 |
| pH | daily maximum | ≤ 9 SU | all year | 603 |
| Solids, total suspended | monthly average | ≤ 12 mg/L | Mar, Jun, Aug, Dec | 603 |
| Solids, total suspended | weekly maximum | ≤ 18 mg/L | Mar, Jun, Aug, Dec | 603 |
| Solids, total suspended | monthly average | ≤ .13 kg/d | Mar, Jun, Aug, Dec | 603 |
| Solids, total suspended | weekly maximum | ≤ .19 kg/d | Mar, Jun, Aug, Dec | 603 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jun, Sep | 603 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | Mar, Dec | 603 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 1.5 mg/L | Jun, Sep | 603 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ 4.5 mg/L | Mar, Dec | 603 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .011 kg/d | Jun, Sep | 603 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .032 kg/d | Mar, Dec | 603 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .016 kg/d | Jun, Sep | 603 |
| Nitrogen, ammonia total [as N] | weekly maximum | ≤ .048 kg/d | Mar, Dec | 603 |
| Turbidity [severity] | monthly average | report only (severity) | all year | 603 |
| Turbidity [severity] | daily maximum | report only (severity) | all year | 603 |
| E. coli, MTEC-MF | monthly geometric mean | ≤ 126 MPN/100mL | Jun, Sep | 603 |
| E. coli, MTEC-MF | weekly geometric mean | ≤ 284 MPN/100mL | Jun, Sep | 603 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | Jun, Sep | 603 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | Mar, Jun, Aug, Dec | 603 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ 15 mg/L | Mar, Jun, Aug, Dec | 603 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ .11 kg/d | Mar, Jun, Aug, Dec | 603 |
| BOD, carbonaceous [5 day, 20 C] | weekly maximum | ≤ .16 kg/d | Mar, Jun, Aug, Dec | 603 |
| Flow rate | monthly average | report only (gal/d) | Mar, Jun, Aug, Dec | 604 |
| Flow rate | daily maximum | report only (gal/d) | Mar, Jun, Aug, Dec | 604 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 604 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 604 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 604 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 604 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 604 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 604 |
| Flow rate | monthly average | report only (gal/d) | Mar, Jun, Aug, Dec | 605 |
| Flow rate | daily maximum | report only (gal/d) | Mar, Jun, Aug, Dec | 605 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Mar, Jun, Aug, Dec | 605 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Mar, Jun, Aug, Dec | 605 |
| Zinc, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 605 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 605 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | Mar, Jun, Aug, Dec | 605 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | Mar, Jun, Aug, Dec | 605 |
| pH | daily minimum | report only (SU) | all year | 901 |
| pH | daily maximum | report only (SU) | all year | 901 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 33 Fabricated Metal Products permits in Ohio.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0133094 · MCP: https://passage-data.com/mcp