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Sewerage Systems, Sellersville, Pennsylvania. NPDES permit PA0050598, in force until Jul 31, 2028. Last 12 months: over a limit once (last June 2026), 14 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| June 2026 | Oxygen, dissolved [DO], instantaneous minimum | 5.69 mg/L | ≥ 6 mg/L | 5% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 6 mg/L | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year |
| Nitrogen, total [as N] | monthly average | ≤ 10 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | all year |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year |
| Ultraviolet light intensity | instantaneous minimum | report only (mW/cm2) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (gal/d) | all year |
| Chlorine, total residual | monthly average | ≤ .5 mg/L | all year |
| Chlorine, total residual | instantaneous maximum | ≤ 1.2 mg/L | all year |
| E. coli | instantaneous maximum | report only (#/100mL) | all year |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | May–Sep |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 20 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | May–Oct |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/PA0050598 · MCP: https://passage-data.com/mcp