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Aircraft Engines And Engine Parts, Cincinnati, Ohio. NPDES permit OH0010286, in force until Jul 31, 2031. 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 | ≤ 28 deg C | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | ≤ 29 deg C | all year | 001 |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year | 001 |
| pH | daily minimum | ≥ 6.5 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Toluene | monthly average | report only (ug/L) | all year | 001 |
| Toluene | daily maximum | report only (ug/L) | all year | 001 |
| Benzene | monthly average | report only (ug/L) | all year | 001 |
| Benzene | daily maximum | report only (ug/L) | all year | 001 |
| Ethylbenzene | monthly average | report only (ug/L) | all year | 001 |
| Ethylbenzene | daily maximum | report only (ug/L) | all year | 001 |
| Naphthalene | monthly average | report only (ug/L) | all year | 001 |
| Naphthalene | daily maximum | report only (ug/L) | 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 | ≤ .031 mg/L | all year | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | monthly average | report only (tox chronic) | Sep | 001 |
| Toxicity [chronic], Ceriodaphnia dubia | daily maximum | report only (tox chronic) | 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 |
| 1,2,4-Trimethylbenzene | monthly average | report only (ug/L) | all year | 001 |
| 1,2,4-Trimethylbenzene | daily maximum | report only (ug/L) | all year | 001 |
| Xylene [mix of m+o+p] | monthly average | report only (ug/L) | all year | 001 |
| Xylene [mix of m+o+p] | daily maximum | report only (ug/L) | all year | 001 |
| pH | daily minimum | report only (SU) | all year | 002 |
| pH | daily maximum | report only (SU) | all year | 002 |
| Oil and grease, hexane extr method | monthly average | report only (mg/L) | all year | 002 |
| Oil and grease, hexane extr method | daily maximum | report only (mg/L) | all year | 002 |
| Rainfall | monthly average | report only (in) | all year | 002 |
| Rainfall | daily maximum | report only (in) | all year | 002 |
| 1,2-cis-Dichloroethene | monthly average | ≤ 5 ug/L | all year | 601 |
| 1,2-cis-Dichloroethene | daily maximum | ≤ 5 ug/L | all year | 601 |
| Methylene chloride | monthly average | ≤ 5 ug/L | all year | 601 |
| Methylene chloride | daily maximum | ≤ 5 ug/L | all year | 601 |
| 1,1-Dichloroethane | monthly average | ≤ 5 ug/L | all year | 601 |
| 1,1-Dichloroethane | daily maximum | ≤ 5 ug/L | all year | 601 |
| 1,1-Dichloroethylene | monthly average | ≤ 5 ug/L | all year | 601 |
| 1,1-Dichloroethylene | daily maximum | ≤ 5 ug/L | all year | 601 |
| 1,1,1-Trichloroethane | monthly average | ≤ 5 ug/L | all year | 601 |
| 1,1,1-Trichloroethane | daily maximum | ≤ 5 ug/L | all year | 601 |
| trans-1,2-Dichloroethylene | monthly average | ≤ 5 ug/L | all year | 601 |
| trans-1,2-Dichloroethylene | daily maximum | ≤ 5 ug/L | all year | 601 |
| Vinyl chloride | monthly average | ≤ 5 ug/L | all year | 601 |
| Vinyl chloride | daily maximum | ≤ 5 ug/L | all year | 601 |
| Trichloroethylene | monthly average | ≤ 5 ug/L | all year | 601 |
| Trichloroethylene | daily maximum | ≤ 5 ug/L | 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 |
| Tetrachloroethene | monthly average | ≤ 5 ug/L | all year | 601 |
| Tetrachloroethene | daily maximum | ≤ 5 ug/L | all year | 601 |
| Xylene [mix of m+o+p] | monthly average | ≤ 5 ug/L | all year | 601 |
| Xylene [mix of m+o+p] | daily maximum | ≤ 5 ug/L | all year | 601 |
| Oil & grease severity | monthly average | report only (severity) | all year | 602 |
| Oil & grease severity | daily maximum | report only (severity) | all year | 602 |
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/OH0010286 · MCP: https://passage-data.com/mcp