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Water Supply, Monaca, Pennsylvania. NPDES permit PA0255017, in force until May 31, 2027. Last 12 months: over a limit 2 times (last May 2026), 16 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| May 2026 | Manganese, total [as Mn], instantaneous maximum | 6.72 mg/L | ≤ 2 mg/L | 236% |
| May 2026 | Manganese, total [as Mn], monthly average | 3.37 mg/L | ≤ 1 mg/L | 237% |
| 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 | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | instantaneous maximum | ≤ 60 mg/L | all year | 001 |
| Iron, total [as Fe] | monthly average | ≤ 2 mg/L | all year | 001 |
| Iron, total [as Fe] | instantaneous maximum | ≤ 4 mg/L | all year | 001 |
| Manganese, total [as Mn] | monthly average | ≤ 1 mg/L | all year | 001 |
| Manganese, total [as Mn] | instantaneous maximum | ≤ 2 mg/L | all year | 001 |
| Aluminum, total [as Al] | monthly average | ≤ 4 mg/L | all year | 001 |
| Aluminum, total [as Al] | instantaneous maximum | ≤ 8 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 | ≤ .5 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ 1 mg/L | all year | 001 |
| Mercury, total [as Hg] | monthly average | ≤ .02 ug/L | all year | 001 |
| Mercury, total [as Hg] | instantaneous maximum | ≤ .03 ug/L | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 002 |
| Oil & Grease | daily maximum | report only (mg/L) | all year | 002 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | 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/PA0255017 · MCP: https://passage-data.com/mcp