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Federal facility (Commercial Physical Research), Philadelphia, Pennsylvania. NPDES permit PA0036447 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 22 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily maximum | report only (SU) | all year | 004 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 004 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 004 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 004 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 004 |
| pH | daily maximum | report only (SU) | all year | 005 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 005 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 005 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 005 |
| Iron, total [as Fe] | daily maximum | report only (mg/L) | all year | 005 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 101 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 110 deg F | all year | 101 |
| Temperature, water deg. fahrenheit | instantaneous minimum | report only (deg F) | all year | 101 |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | all year | 101 |
| Temperature, water deg. fahrenheit | instantaneous maximum | report only (deg F) | all year | 101 |
| Temp. diff. between samp. & upstrm deg. F | instantaneous maximum | ≤ 3 deg F | all year | 101 |
| pH | minimum | ≥ 6 SU | all year | 101 |
| pH | maximum | ≤ 9 SU | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Temperature, water deg. fahrenheit | instantaneous maximum | ≤ 110 deg F | all year | 105 |
| pH | minimum | ≥ 6 SU | all year | 105 |
| pH | maximum | ≤ 9 SU | all year | 105 |
| Iron, total [as Fe] | monthly average | report only (mg/L) | all year | 105 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 105 |
| Chlorine, total residual | monthly average | ≤ .5 mg/L | all year | 105 |
| Chlorine, total residual | instantaneous maximum | ≤ 1.2 mg/L | all year | 105 |
| Solids, total dissolved | monthly average | ≤ 750 mg/L | all year | 105 |
| pH | minimum | ≥ 6 SU | all year | 205 |
| pH | maximum | ≤ 9 SU | all year | 205 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 205 |
| Chlorine, total residual | monthly average | ≤ .5 mg/L | all year | 205 |
| Chlorine, total residual | instantaneous maximum | ≤ 1.6 mg/L | all year | 205 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 7 Engineering, Accounting, Research and Management Services permits in Pennsylvania.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/PA0036447 · MCP: https://passage-data.com/mcp