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Water Supply, Chalfont, Pennsylvania. NPDES permit PA0056804, in force until Oct 31, 2029. Last 12 months: no values over a limit, 80 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 | ≤ 20 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 324 lb/d | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 647 lb/d | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year | 001 |
| Phosphorus, total [as P] | daily maximum | ≤ 1 mg/L | all year | 001 |
| Phosphorus, total [as P] | monthly average | ≤ 8 lb/d | all year | 001 |
| Phosphorus, total [as P] | daily maximum | ≤ 16 lb/d | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 2 mg/L | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 32 lb/d | all year | 001 |
| Iron, total [as Fe] | daily maximum | ≤ 64 lb/d | all year | 001 |
| Manganese, total [as Mn] | monthly average | ≤ 1 mg/L | all year | 001 |
| Manganese, total [as Mn] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Manganese, total [as Mn] | monthly average | ≤ 16 lb/d | all year | 001 |
| Manganese, total [as Mn] | daily maximum | ≤ 32 lb/d | all year | 001 |
| Aluminum, total [as Al] | monthly average | ≤ 1 mg/L | all year | 001 |
| Aluminum, total [as Al] | daily maximum | ≤ 2 mg/L | all year | 001 |
| Aluminum, total [as Al] | monthly average | ≤ 16 lb/d | all year | 001 |
| Aluminum, total [as Al] | daily maximum | ≤ 32 lb/d | all year | 001 |
| Dichlorobromomethane | monthly average | report only (mg/L) | all year | 001 |
| Dichlorobromomethane | daily maximum | report only (mg/L) | all year | 001 |
| Chloroform | monthly average | report only (mg/L) | all year | 001 |
| Chloroform | daily maximum | report only (mg/L) | all year | 001 |
| Chlorodibromomethane | monthly average | report only (mg/L) | all year | 001 |
| Chlorodibromomethane | daily maximum | 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 | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .24 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .56 mg/L | all year | 001 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (mg/L) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (mg/L) | all year | 001 |
| Perfluorooctanesulfonate | quarterly average | report only (mg/L) | all year | 001 |
| Perfluorooctanesulfonate | daily maximum | report only (mg/L) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | quarterly average | report only (ug/L) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ug/L) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | quarterly average | report only (ug/L) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (ug/L) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year | 002 |
| Solids, total suspended | monthly average | ≤ 324 lb/d | all year | 002 |
| Solids, total suspended | daily maximum | ≤ 647 lb/d | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year | 002 |
| Phosphorus, total [as P] | daily maximum | ≤ 1 mg/L | all year | 002 |
| Phosphorus, total [as P] | monthly average | ≤ 8 lb/d | all year | 002 |
| Phosphorus, total [as P] | daily maximum | ≤ 16 lb/d | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 2 mg/L | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 4 mg/L | all year | 002 |
| Iron, total [as Fe] | monthly average | ≤ 32 lb/d | all year | 002 |
| Iron, total [as Fe] | daily maximum | ≤ 64 lb/d | all year | 002 |
| Manganese, total [as Mn] | monthly average | ≤ 1 mg/L | all year | 002 |
| Manganese, total [as Mn] | daily maximum | ≤ 2 mg/L | all year | 002 |
| Manganese, total [as Mn] | monthly average | ≤ 16 lb/d | all year | 002 |
| Manganese, total [as Mn] | daily maximum | ≤ 32 lb/d | all year | 002 |
| Aluminum, total [as Al] | monthly average | ≤ 1 mg/L | all year | 002 |
| Aluminum, total [as Al] | daily maximum | ≤ 2 mg/L | all year | 002 |
| Aluminum, total [as Al] | monthly average | ≤ 16 lb/d | all year | 002 |
| Aluminum, total [as Al] | daily maximum | ≤ 32 lb/d | all year | 002 |
| Dichlorobromomethane | monthly average | report only (mg/L) | all year | 002 |
| Dichlorobromomethane | daily maximum | report only (mg/L) | all year | 002 |
| Chloroform | monthly average | report only (mg/L) | all year | 002 |
| Chloroform | daily maximum | report only (mg/L) | all year | 002 |
| Chlorodibromomethane | monthly average | report only (mg/L) | all year | 002 |
| Chlorodibromomethane | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 002 |
| Chlorine, total residual | monthly average | ≤ .24 mg/L | all year | 002 |
| Chlorine, total residual | instantaneous maximum | ≤ .56 mg/L | all year | 002 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (mg/L) | all year | 002 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (mg/L) | all year | 002 |
| Perfluorooctanesulfonate | quarterly average | report only (mg/L) | all year | 002 |
| Perfluorooctanesulfonate | daily maximum | report only (mg/L) | all year | 002 |
| Perfluorobutanesulfonic acid (PFBS) | quarterly average | report only (ug/L) | all year | 002 |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ug/L) | all year | 002 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | quarterly average | report only (ug/L) | all year | 002 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (ug/L) | all year | 002 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
Same industry: the 214 Water Supply permits in Pennsylvania.
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Your permit document is the final word. As JSON: /api/v1/permits/PA0056804 · MCP: https://passage-data.com/mcp