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Sewage treatment plant, major discharger, Taunton, Massachusetts. NPDES permit MA0100897 expired Jul 31, 2020; its limits still apply. Last 12 months: over a limit 2 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Coliform, fecal general, daily maximum | 1490 CFU/100mL | ≤ 260 CFU/100mL | 473% |
| August 2026 | Copper, total [as Cu], monthly average | .009 mg/L | ≤ .008 mg/L | 13% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Oxygen, dissolved [DO] | minimum | ≥ 6 mg/L | Apr–Oct |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | minimum | ≥ 6 SU | all year |
| pH | maximum | ≤ 83 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 20 mg/L | Apr–Oct |
| Solids, total suspended | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Nov, Dec |
| Solids, total suspended | weekly average | ≤ 20 mg/L | Apr–Oct |
| Solids, total suspended | daily maximum | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Solids, total suspended | daily maximum | report only (mg/L) | Apr–Oct |
| Solids, total suspended | monthly average | ≤ 2102 lb/d | Jan, Feb, Mar, Nov, Dec |
| Solids, total suspended | monthly average | ≤ 1401 lb/d | Apr–Oct |
| Solids, total suspended | weekly average | ≤ 3153 lb/d | Jan, Feb, Mar, Nov, Dec |
| Solids, total suspended | weekly average | ≤ 1401 lb/d | Apr–Oct |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Solids, total suspended | weekly average | report only (mg/L) | all year |
| Solids, total suspended | daily maximum | report only (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 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, total [as N] | monthly average | ≤ 5 mg/L | May–Oct |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, total [as N] | rolling average | ≤ 210 lb/d | May–Oct |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1 mg/L | Jun–Sep |
| Nitrogen, ammonia total [as N] | weekly average | ≤ 1 mg/L | Jun–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2 mg/L | Jun–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, May, Oct, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jun–Sep |
| Nitrogen, ammonia total [as N] | weekly average | report only (lb/d) | Jun–Sep |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, nitrite total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, nitrate total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, nitrate total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, nitrate total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | May–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (lb/d) | May–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Apr–Oct |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Copper, total [as Cu] | monthly average | ≤ .016 mg/L | all year |
| Copper, total [as Cu] | monthly average | ≤ .008 mg/L | all year |
| Copper, total [as Cu] | monthly average | ≤ .016 mg/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ .022 mg/L | all year |
| Copper, total [as Cu] | daily maximum | ≤ .016 mg/L | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | monthly average | ≤ 1.1 lb/d | all year |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year |
| Nickel, total recoverable | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Zinc, total recoverable | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Aluminum, total recoverable | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Cadmium, total recoverable | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Lead, total recoverable | daily maximum | report only (mg/L) | Feb, May, Aug, Nov |
| Copper, total recoverable | daily maximum | report only (ug/L) | Feb, May, Aug, Nov |
| Flow, in conduit or thru treatment plant | rolling average | ≤ 8.4 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ .046 ug/L | all year |
| Chlorine, total residual | monthly average | ≤ 27 ug/L | all year |
| Chlorine, total residual | daily maximum | ≤ .08 ug/L | all year |
| Chlorine, total residual | daily maximum | ≤ 47 ug/L | all year |
| Enterococci | monthly average | ≤ 35 CFU/100mL | all year |
| Enterococci | daily maximum | ≤ 276 CFU/100mL | all year |
| Coliform, fecal general | monthly geometric mean | ≤ 200 CFU/100mL | all year |
| Coliform, fecal general | monthly average | ≤ 88 CFU/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 400 CFU/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 260 CFU/100mL | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 15 mg/L | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 15 mg/L | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 45 mg/L | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1051 lb/d | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 2102 lb/d | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 1051 lb/d | Apr–Oct |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 3153 lb/d | Jan, Feb, Mar, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (lb/d) | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | daily minimum | ≥ 100 % | Feb, May, Aug, Nov |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | daily minimum | ≥ 24 % | Feb, May, Aug, Nov |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | daily minimum | ≥ 29 % | Feb, May, Aug, Nov |
Cited limits by parameter: Massachusetts'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/MA0100897 · MCP: https://passage-data.com/mcp