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Industrial Gases, Canton, Ohio. NPDES permit OH0123498, in force until Feb 28, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 002 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 002 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | all year | 002 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| pH | daily minimum | ≥ 6.5 SU | all year | 003 |
| pH | daily maximum | ≤ 9 SU | all year | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 7.5 mg/L | Mar, Jun, Sep, Dec | 003 |
| Oil and grease, hexane extr method | daily maximum | ≤ 1.9 kg/d | Mar, Jun, Sep, Dec | 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 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 003 |
| pH | daily minimum | ≥ 6.5 SU | all year | 004 |
| pH | daily maximum | ≤ 9 SU | all year | 004 |
| Oil and grease, hexane extr method | daily maximum | ≤ 5.8 mg/L | Mar, Jun, Sep, Dec | 004 |
| Oil and grease, hexane extr method | daily maximum | ≤ .35 kg/d | Mar, Jun, Sep, Dec | 004 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 004 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 004 |
| Chlorine, total residual | daily maximum | ≤ .019 mg/L | all year | 004 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 005 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 005 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | all year | 005 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 005 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 005 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 005 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 006 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Aluminum, total recoverable | monthly average | report only (ug/L) | all year | 006 |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year | 006 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 006 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 006 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 68 Chemicals and Allied Products permits in Ohio.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0123498 · MCP: https://passage-data.com/mcp