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Sewerage Systems, Ulster, Pennsylvania. NPDES permit PA0228923 expired Aug 31, 2025; its limits still apply. Last 12 months: over a limit 10 times (last June 2026), 13 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | BOD, carbonaceous [5 day, 20 C], instantaneous maximum | 42.2 mg/L | ≤ 20 mg/L | 111% |
| October 2025 | BOD, carbonaceous [5 day, 20 C], monthly average | 34.4 mg/L | ≤ 10 mg/L | 244% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], instantaneous maximum | 168 mg/L | ≤ 20 mg/L | 740% |
| May 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 86.81 mg/L | ≤ 10 mg/L | 768% |
| May 2026 | pH, instantaneous minimum | 5.4 SU | ≥ 6 SU | — |
| June 2026 | BOD, carbonaceous [5 day, 20 C], instantaneous maximum | 45.4 mg/L | ≤ 20 mg/L | 127% |
| June 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 37.8 mg/L | ≤ 10 mg/L | 278% |
| June 2026 | Coliform, fecal general, geometric mean | 14926 #/100mL | ≤ 200 #/100mL | 7363% |
| June 2026 | Coliform, fecal general, instantaneous maximum | 24196 #/100mL | ≤ 1000 #/100mL | 2320% |
| June 2026 | Solids, total suspended, monthly average | 22 mg/L | ≤ 20 mg/L | 10% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | report only (mg/L) | all year |
| pH | instantaneous minimum | ≥ 6 SU | all year |
| pH | instantaneous maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 20 mg/L | all year |
| Solids, total suspended | instantaneous maximum | ≤ 40 mg/L | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Chlorine, total residual | monthly average | report only (mg/L) | all year |
| Chlorine, total residual | instantaneous maximum | ≤ .05 mg/L | all year |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep |
| Coliform, fecal general | geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | May–Sep |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 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/PA0228923 · MCP: https://passage-data.com/mcp