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Sewage treatment plant, major discharger, Fall River, Massachusetts. NPDES permit MA0100382 expired Feb 6, 2006; its limits still apply. Last 12 months: over a limit 4 times (last September 2026), 2 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit |
|---|---|---|---|
| June 2026 | pH, minimum | 6.4 SU | ≥ 6.5 SU |
| July 2026 | pH, minimum | 6.3 SU | ≥ 6.5 SU |
| August 2026 | pH, minimum | 6.2 SU | ≥ 6.5 SU |
| September 2026 | pH, minimum | 6.2 SU | ≥ 6.5 SU |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 77300 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | monthly average minimum | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | weekly average | report only (mg/L) | all year |
| BOD, 5-day, 20 deg. C | daily maximum | 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 |
| BOD, 5-day, 20 deg. C | weekly average | report only (lb/d) | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 11600 lb/d | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | monthly average | ≤ 77300 lb/d | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Solids, total suspended | monthly average minimum | 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 | daily maximum | report only (lb/d) | all year |
| Solids, total suspended | weekly average | report only (lb/d) | all year |
| Solids, total suspended | weekly average | ≤ 11600 lb/d | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, nitrite total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Lead, total recoverable | monthly average | report only (ug/L) | all year |
| Lead, total recoverable | monthly average | ≤ 22 ug/L | all year |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year |
| Lead, total recoverable | daily maximum | ≤ 33 ug/L | all year |
| Copper, total recoverable | monthly average | ≤ 22 ug/L | all year |
| Copper, total recoverable | daily maximum | ≤ 33 ug/L | all year |
| Flow, in conduit or thru treatment plant | 12-month average | ≤ 30.9 MGD | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Chlorine, total residual | monthly average | ≤ 42.5 ug/L | all year |
| Chlorine, total residual | daily maximum | ≤ 73.7 ug/L | all year |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 400 #/100mL | all year |
| LC50 Static 48Hr Acute Menidia | daily minimum | ≥ 100 % | Mar, Jun, Sep, Dec |
| NOEL Static 1Hr 20min Fert. Chronic Arbacia punctulata | monthly average minimum | ≥ 18 % | Mar, Jun, Sep, Dec |
| Noel Statre 7Day Chronic Menidia | daily minimum | ≥ 18 % | Mar, Jun, Sep, Dec |
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/MA0100382 · MCP: https://passage-data.com/mcp