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Aircraft Engines And Engine Parts, Blue Ash, Ohio. NPDES permit OH0141241, in force until Jun 30, 2027. Last 12 months: no values over a limit, 12 of 33 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 001 |
| Chromium, 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 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 801 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 801 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 801 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 801 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 801 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 801 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 801 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 801 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 801 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 801 |
| pH | daily minimum | report only (SU) | all year | 901 |
| pH | daily maximum | report only (SU) | all year | 901 |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year | 901 |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year | 901 |
| Nickel, total recoverable | monthly average | report only (ug/L) | all year | 901 |
| Nickel, total recoverable | daily maximum | report only (ug/L) | all year | 901 |
| Zinc, total recoverable | monthly average | report only (ug/L) | all year | 901 |
| Zinc, total recoverable | daily maximum | report only (ug/L) | all year | 901 |
| Chromium, total recoverable | monthly average | report only (ug/L) | all year | 901 |
| Chromium, total recoverable | daily maximum | report only (ug/L) | all year | 901 |
| Copper, total recoverable | monthly average | report only (ug/L) | all year | 901 |
| Copper, total recoverable | daily maximum | report only (ug/L) | all year | 901 |
| Chromium, hexavalent dissolved [as Cr] | monthly average | report only (ug/L) | all year | 901 |
| Chromium, hexavalent dissolved [as Cr] | daily maximum | report only (ug/L) | all year | 901 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 27 Transportation Equipment permits in Ohio.
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Your permit document is the final word. As JSON: /api/v1/permits/OH0141241 · MCP: https://passage-data.com/mcp