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Sewerage Systems, Cowansville, Pennsylvania. NPDES permit PA0219258, in force until Apr 30, 2029. Last 12 months: over a limit 3 times (last December 2025), 16 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, total suspended, instantaneous maximum | 21 mg/L | ≤ 20 mg/L | 5% |
| December 2025 | Solids, total suspended, monthly average | 20 mg/L | ≤ 10 mg/L | 100% |
| December 2025 | Solids, total suspended, weekly average | 21 mg/L | ≤ 15 mg/L | 40% |
| 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 |
| Solids, total suspended | weekly average | ≤ 15 mg/L | all year |
| Solids, total suspended | instantaneous maximum | ≤ 20 mg/L | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.9 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | instantaneous maximum | ≤ 3.8 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | instantaneous maximum | ≤ 5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | monthly average | ≤ .008 MGD | all year |
| Chlorine, total residual | monthly average | ≤ .01 mg/L | all year |
| Chlorine, total residual | instantaneous maximum | ≤ .03 mg/L | all year |
| E. coli | annual average | report only (#/100mL) | all year |
| Coliform, fecal general | geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 #/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 | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | instantaneous maximum | ≤ 20 mg/L | all year |
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/PA0219258 · MCP: https://passage-data.com/mcp