Passage Data · Check a report · Use it from your AI
Aircraft Engines And Engine Parts, Middletown, Ohio. NPDES permit OH0009156, in force until Dec 31, 2030. Last 12 months: over a limit 4 times (last August 2026), 198 required values missing, 11 of 19 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | Oxygen, dissolved [DO], daily minimum | .4 | ≥ 5 mg/L | 92% |
| May 2026 | Oxygen, dissolved [DO], daily minimum | .4 | ≥ 5 mg/L | 92% |
| July 2026 | Silver total recoverable, monthly average | 3.5 | ≤ 1.3 ug/L | 169% |
| August 2026 | pH, daily minimum | 6.34 | ≥ 6.5 SU | — |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| 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 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | all year | 001 |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year | 001 |
| Nickel, total recoverable | monthly average | ≤ 110 ug/L | all year | 001 |
| Nickel, total recoverable | daily maximum | ≤ 960 ug/L | all year | 001 |
| Silver total recoverable | monthly average | ≤ 1.3 ug/L | all year | 001 |
| Silver total recoverable | daily maximum | ≤ 6.9 ug/L | all year | 001 |
| Zinc, total recoverable | monthly average | ≤ 250 ug/L | all year | 001 |
| Zinc, total recoverable | daily maximum | ≤ 250 ug/L | all year | 001 |
| Cadmium, total recoverable | monthly average | ≤ 4.8 ug/L | all year | 001 |
| Cadmium, total recoverable | daily maximum | ≤ 12 ug/L | all year | 001 |
| Lead, total recoverable | monthly average | ≤ 19 ug/L | all year | 001 |
| Lead, total recoverable | daily maximum | ≤ 360 ug/L | all year | 001 |
| Chromium, total recoverable | monthly average | ≤ 170 ug/L | all year | 001 |
| Chromium, total recoverable | daily maximum | ≤ 3600 ug/L | all year | 001 |
| Copper, total recoverable | monthly average | ≤ 19 ug/L | all year | 001 |
| Copper, total recoverable | daily maximum | ≤ 31 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 |
| Cyanide, free available | monthly average | ≤ 12 ug/L | all year | 001 |
| Cyanide, free available | daily maximum | ≤ 46 ug/L | all year | 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 |
| Solids, total suspended | monthly average | ≤ 31 mg/L | all year | 601 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 601 |
| Solids, total suspended | monthly average | ≤ 2.3 kg/d | all year | 601 |
| Solids, total suspended | daily maximum | ≤ 4.5 kg/d | all year | 601 |
| Oil and grease, hexane extr method | monthly average | ≤ 26 mg/L | all year | 601 |
| Oil and grease, hexane extr method | daily maximum | ≤ 52 mg/L | all year | 601 |
| Oil and grease, hexane extr method | monthly average | ≤ 1.9 kg/d | all year | 601 |
| Oil and grease, hexane extr method | daily maximum | ≤ 3.9 kg/d | all year | 601 |
| Cyanide, total [as CN] | monthly average | ≤ .64 mg/L | all year | 601 |
| Cyanide, total [as CN] | daily maximum | ≤ 1.18 mg/L | all year | 601 |
| Cyanide, total [as CN] | monthly average | ≤ .048 kg/d | all year | 601 |
| Cyanide, total [as CN] | daily maximum | ≤ .088 kg/d | all year | 601 |
| Nickel, total recoverable | monthly average | ≤ 2.38 ug/L | all year | 601 |
| Nickel, total recoverable | daily maximum | ≤ 3.98 ug/L | all year | 601 |
| Nickel, total recoverable | monthly average | ≤ .00018 kg/d | all year | 601 |
| Nickel, total recoverable | daily maximum | ≤ .0003 kg/d | all year | 601 |
| Silver total recoverable | monthly average | ≤ .24 ug/L | all year | 601 |
| Silver total recoverable | daily maximum | ≤ .43 ug/L | all year | 601 |
| Silver total recoverable | monthly average | ≤ .000018 kg/d | all year | 601 |
| Silver total recoverable | daily maximum | ≤ .000032 kg/d | all year | 601 |
| Zinc, total recoverable | monthly average | ≤ 1.48 ug/L | all year | 601 |
| Zinc, total recoverable | daily maximum | ≤ 2.61 ug/L | all year | 601 |
| Zinc, total recoverable | monthly average | ≤ .00011 kg/d | all year | 601 |
| Zinc, total recoverable | daily maximum | ≤ .0002 kg/d | all year | 601 |
| Cadmium, total recoverable | monthly average | ≤ .26 ug/L | all year | 601 |
| Cadmium, total recoverable | daily maximum | ≤ .69 ug/L | all year | 601 |
| Cadmium, total recoverable | monthly average | ≤ .000019 kg/d | all year | 601 |
| Cadmium, total recoverable | daily maximum | ≤ .000052 kg/d | all year | 601 |
| Lead, total recoverable | monthly average | ≤ .43 ug/L | all year | 601 |
| Lead, total recoverable | daily maximum | ≤ .69 ug/L | all year | 601 |
| Lead, total recoverable | monthly average | ≤ .000032 kg/d | all year | 601 |
| Lead, total recoverable | daily maximum | ≤ .000052 kg/d | all year | 601 |
| Chromium, total recoverable | monthly average | ≤ 1.71 ug/L | all year | 601 |
| Chromium, total recoverable | daily maximum | ≤ 2.77 ug/L | all year | 601 |
| Chromium, total recoverable | monthly average | ≤ .00013 kg/d | all year | 601 |
| Chromium, total recoverable | daily maximum | ≤ .00021 kg/d | all year | 601 |
| Copper, total recoverable | monthly average | ≤ 2.04 ug/L | all year | 601 |
| Copper, total recoverable | daily maximum | ≤ 3.33 ug/L | all year | 601 |
| Copper, total recoverable | monthly average | ≤ .00015 kg/d | all year | 601 |
| Copper, total recoverable | daily maximum | ≤ .00025 kg/d | all year | 601 |
| Organics, total toxic [TTO] | daily maximum | ≤ 2.1 ug/L | Sep | 601 |
| Organics, total toxic [TTO] | daily maximum | ≤ .00016 kg/d | Sep | 601 |
Cited limits by parameter: Ohio's rules and the federal ones.
Same industry: the 27 Transportation Equipment 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/OH0009156 · MCP: https://passage-data.com/mcp