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Aircraft Engines And Engine Parts, Williamsport, Pennsylvania. NPDES permit PA0007455, in force until Jun 30, 2028. Last 12 months: no values over a limit, 69 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 31 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 001 |
| Oil & Grease | monthly average | ≤ 15 mg/L | all year | 001 |
| Oil & Grease | monthly average | report only (lb/d) | all year | 001 |
| Oil & Grease | daily maximum | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | quarterly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | quarterly average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | quarterly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | quarterly average | report only (lb/d) | all year | 001 |
| Cyanide, total [as CN] | monthly average | ≤ .65 mg/L | all year | 001 |
| Cyanide, total [as CN] | daily maximum | ≤ 1.2 mg/L | all year | 001 |
| Cyanide, total [as CN] | monthly average | report only (lb/d) | all year | 001 |
| Cyanide, total [as CN] | daily maximum | report only (lb/d) | all year | 001 |
| Cadmium, total [as Cd] | monthly average | ≤ .19 mg/L | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | ≤ .3 mg/L | all year | 001 |
| Cadmium, total [as Cd] | monthly average | ≤ .02 lb/d | all year | 001 |
| Cadmium, total [as Cd] | daily maximum | ≤ .032 lb/d | all year | 001 |
| Chromium, total [as Cr] | monthly average | ≤ 1.71 mg/L | all year | 001 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.77 mg/L | all year | 001 |
| Chromium, total [as Cr] | monthly average | report only (lb/d) | all year | 001 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | monthly average | ≤ 1.34 mg/L | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ 2.1 mg/L | all year | 001 |
| Copper, total [as Cu] | monthly average | ≤ .14 lb/d | all year | 001 |
| Copper, total [as Cu] | daily maximum | ≤ .22 lb/d | all year | 001 |
| Lead, total [as Pb] | monthly average | ≤ .43 mg/L | all year | 001 |
| Lead, total [as Pb] | daily maximum | ≤ .69 mg/L | all year | 001 |
| Lead, total [as Pb] | monthly average | report only (lb/d) | all year | 001 |
| Lead, total [as Pb] | daily maximum | report only (lb/d) | all year | 001 |
| Nickel, total [as Ni] | monthly average | ≤ 2.38 mg/L | all year | 001 |
| Nickel, total [as Ni] | daily maximum | ≤ 3.98 mg/L | all year | 001 |
| Nickel, total [as Ni] | monthly average | report only (lb/d) | all year | 001 |
| Nickel, total [as Ni] | daily maximum | report only (lb/d) | all year | 001 |
| Silver, total [as Ag] | monthly average | ≤ .24 mg/L | all year | 001 |
| Silver, total [as Ag] | daily maximum | ≤ .43 mg/L | all year | 001 |
| Silver, total [as Ag] | monthly average | report only (lb/d) | all year | 001 |
| Silver, total [as Ag] | daily maximum | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ 1.48 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ 2.61 mg/L | all year | 001 |
| Zinc, total [as Zn] | monthly average | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 001 |
| Trichloroethylene | daily maximum | ≤ .2 mg/L | all year | 001 |
| Trichloroethylene | daily maximum | report only (lb/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 |
| Organics, total toxic [TTO] | daily maximum | ≤ 2.13 mg/L | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Trichloroethylene | daily maximum | ≤ .06 mg/L | all year | 003 |
| Trichloroethylene | daily maximum | ≤ .02 lb/d | all year | 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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 004 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 004 |
| Trichloroethylene | daily maximum | ≤ .01 mg/L | all year | 004 |
| Trichloroethylene | daily maximum | report only (lb/d) | all year | 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 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 005 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 005 |
| Chromium, total [as Cr] | quarterly average | ≤ 1.71 mg/L | all year | 005 |
| Chromium, total [as Cr] | daily maximum | ≤ 2.77 mg/L | all year | 005 |
| Chromium, total [as Cr] | quarterly average | report only (lb/d) | all year | 005 |
| Chromium, total [as Cr] | daily maximum | report only (lb/d) | all year | 005 |
| Trichloroethylene | daily maximum | ≤ .2 mg/L | all year | 005 |
| Trichloroethylene | daily maximum | report only (lb/d) | 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 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 006 |
| pH | daily maximum | report only (SU) | all year | 006 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 006 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 006 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 006 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 006 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 17 Transportation Equipment permits in Pennsylvania.
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