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Sewage treatment plant, major discharger, Bradford, Massachusetts. NPDES permit MA0101621 expired Nov 30, 2024; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jan, Apr, Jul, Oct |
| 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 | ≤ 4500 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 | ≤ 6755 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 8.5 SU | all year |
| pH | maximum | report only (SU) | Jan, Apr, Jul, Oct |
| 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 | ≤ 4529 lb/d | all year |
| Solids, total suspended | daily maximum | report only (lb/d) | all year |
| Solids, total suspended | weekly average | ≤ 6793 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | Apr–Oct |
| 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] | daily maximum | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | Apr–Oct |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | Apr–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] | daily maximum | report only (mg/L) | Apr–Oct |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Flow, in conduit or thru treatment plant | rolling average | ≤ 18.1 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 | ≤ .4 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ .7 mg/L | all year |
| Nitrogen, Ammonia Total | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Nitrogen, Ammonia Total | daily maximum | report only (mg/L) | Jan, Apr, Jul, Oct |
| Enterococci | monthly average | ≤ 35 CFU/100mL | all year |
| Enterococci | daily maximum | ≤ 276 CFU/100mL | all year |
| Coliform, fecal general | monthly geometric mean | ≤ 88 MPN/100mL | all year |
| Coliform, fecal general | daily maximum | ≤ 260 MPN/100mL | 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 Pimephales promelas | daily minimum | ≥ 100 % | Jan, Apr, Jul, Oct |
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/MA0101621 · MCP: https://passage-data.com/mcp