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Water Supply, Mount Joy, Pennsylvania. NPDES permit PA0085871 expired Jun 30, 2026; its limits still apply. Last 12 months: no values over a limit, 29 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 |
| 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 |
| Osmotic pressure, total, unf whl wtr | daily maximum | ≤ 535 mOsm/kg | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 101 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 101 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 101 |
| Solids, total suspended | daily maximum | ≤ 60 mg/L | all year | 101 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 101 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 101 |
| Cadmium, total [as Cd] | monthly average | report only (mg/L) | all year | 101 |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year | 101 |
| Cadmium, total [as Cd] | monthly average | report only (lb/d) | all year | 101 |
| Cadmium, total [as Cd] | daily maximum | report only (lb/d) | all year | 101 |
| Iron, total [as Fe] | monthly average | ≤ 2 mg/L | all year | 101 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 101 |
| Iron, total [as Fe] | monthly average | report only (lb/d) | all year | 101 |
| Iron, total [as Fe] | daily maximum | report only (lb/d) | all year | 101 |
| Manganese, total [as Mn] | monthly average | ≤ 1 mg/L | all year | 101 |
| Manganese, total [as Mn] | daily maximum | ≤ 2 mg/L | all year | 101 |
| Manganese, total [as Mn] | monthly average | report only (lb/d) | all year | 101 |
| Manganese, total [as Mn] | daily maximum | report only (lb/d) | all year | 101 |
| Aluminum, total [as Al] | monthly average | ≤ 4 mg/L | all year | 101 |
| Aluminum, total [as Al] | daily maximum | ≤ 8 mg/L | all year | 101 |
| Aluminum, total [as Al] | monthly average | report only (lb/d) | all year | 101 |
| Aluminum, total [as Al] | daily maximum | report only (lb/d) | all year | 101 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 101 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 101 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 214 Water Supply 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/PA0085871 · MCP: https://passage-data.com/mcp