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Sewage treatment plant, major discharger, Mars, Pennsylvania. NPDES permit PA0104442 expired Jun 30, 2022; its limits still apply. Last 12 months: no values over a limit, 58 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | 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 | monthly average | report only (lb/d) | all year |
| Solids, total suspended | weekly average | report only (lb/d) | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | report only (lb/d) | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Nitrogen, total [as N] | monthly average | ≤ 5 mg/L | all year |
| Nitrogen, total [as N] | monthly average | ≤ 185 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 4.5 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 165 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 56 lb/d | May–Oct |
| Phosphorus, total [as P] | monthly average | ≤ .5 mg/L | all year |
| Phosphorus, total [as P] | monthly average | ≤ 18 lb/d | all year |
| Ultraviolet light intensity | average | report only (uW/cm2) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Solids, total dissolved | quarterly average | report only (mg/L) | all year |
| Solids, total dissolved | quarterly average | report only (lb/d) | all year |
| Coliform, fecal general | geometric mean | ≤ 200 CFU/100mL | May–Sep |
| Coliform, fecal general | geometric mean | ≤ 2000 CFU/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 CFU/100mL | May–Sep |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 CFU/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] | weekly average | ≤ 15 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 375 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 560 lb/d | 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/PA0104442 · MCP: https://passage-data.com/mcp