Passage Data · Check a report · Use it from your AI
National Security, Horsham, Pennsylvania. NPDES permit PA0245046 expired Mar 31, 2026; its limits still apply. Last 12 months: no values over a limit, 10 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/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 | weekly average | report only (MGD) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | monthly average | report only (ug/L) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ug/L) | all year | 001 |
| Perfluorooctanesulfonate | monthly average | report only (ug/L) | all year | 001 |
| Perfluorooctanesulfonate | daily maximum | report only (ug/L) | all year | 001 |
| Total PFOA and PFOS | monthly average | ≤ .07 ug/L | all year | 001 |
| Solids, total dissolved | quarterly average | report only (mg/L) | all year | 001 |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 003 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 003 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (ug/L) | all year | 003 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ug/L) | all year | 003 |
| Perfluorooctanesulfonate | quarterly average | report only (ug/L) | all year | 003 |
| Perfluorooctanesulfonate | daily maximum | report only (ug/L) | all year | 003 |
| Total PFOA and PFOS | quarterly average | ≤ .07 ug/L | all year | 003 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (ug/L) | all year | 201 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ug/L) | all year | 201 |
| Perfluorooctanesulfonate | quarterly average | report only (ug/L) | all year | 201 |
| Perfluorooctanesulfonate | daily maximum | report only (ug/L) | all year | 201 |
| Total PFOA and PFOS | quarterly average | report only (ug/L) | all year | 201 |
| Total PFOA and PFOS | daily maximum | report only (ug/L) | all year | 201 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 4 National Security and International Affairs permits in Pennsylvania.
· 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/PA0245046 · MCP: https://passage-data.com/mcp