Passage Data · Check a report · Use it from your AI
Gray And Ductile Iron Foundries, Coshocton, Ohio. NPDES permit OH0094455, in force until Nov 30, 2026. Last 12 months: no values over a limit, 1 required value missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Residue, tot fltrble [dried at 105 C] | monthly average | report only (mg/L) | all year | 001 |
| Residue, tot fltrble [dried at 105 C] | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | ≤ 5.87 kg/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 14.8 kg/d | all year | 001 |
| Oil and grease, hexane extr method | monthly average | ≤ 3.91 kg/d | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 11.7 kg/d | all year | 001 |
| Copper, total [as Cu] | monthly average | ≤ .0626 kg/d | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .113 kg/d | all year | 001 |
| Lead, total [as Pb] | monthly average | ≤ .101 kg/d | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .207 kg/d | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ .145 kg/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ .384 kg/d | all year | 001 |
| Phenolics, total recoverable | monthly average | ≤ .0718 kg/d | all year | 001 |
| Phenolics, total recoverable | daily maximum | ≤ .206 kg/d | 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 |
| Chlorine, total residual | daily maximum | ≤ .038 mg/L | all year | 001 |
| Toxicity [acute], Ceriodaphnia dubia | monthly average | report only (tox acute) | Mar, Jun, Aug, Dec | 001 |
| Toxicity [acute], Ceriodaphnia dubia | daily maximum | report only (tox acute) | Mar, Jun, Aug, Dec | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | monthly average | report only (tox acute) | Mar, Jun, Aug, Dec | 001 |
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | daily maximum | report only (tox acute) | Mar, Jun, Aug, Dec | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 002 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 002 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 002 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 002 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 002 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 002 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 002 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 003 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 003 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 003 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 003 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 003 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 003 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 003 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 003 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 004 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 004 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 004 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 004 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 004 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 004 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 004 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 005 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 005 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 005 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 005 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 005 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 005 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 005 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 006 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 006 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 006 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 006 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 006 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 006 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 006 |
| Solids, total suspended | monthly average | report only (mg/L) | Dec | 007 |
| Solids, total suspended | daily maximum | report only (mg/L) | Dec | 007 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | Dec | 007 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | Dec | 007 |
| Zinc, total [as Zn] | monthly average | report only (ug/L) | Dec | 007 |
| Zinc, total [as Zn] | daily maximum | report only (ug/L) | Dec | 007 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | Dec | 007 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | Dec | 007 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 56 Primary Metal Industries permits in Ohio.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/OH0094455 · MCP: https://passage-data.com/mcp