NPDES permit MA0101010 · Major POTW · administratively continued, expires 2022-03-31 · EPA's file as of 2026-09-19
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This permit expired on 2022-03-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.
Last period with anything received: 2026-07-31.
Reports are due about 15 days after each monitoring period ends (the most common figure among MA permits in EPA's filings — check your permit).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | pH | MINIMUM | >= 6.5 SU | all year |
| 001 | pH | MAXIMUM | <= 8.3 SU | all year |
| 001 | Solids, total suspended | MO AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | WKLY AVG | <= 8 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | <= 2250 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 750 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 4500 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 2250 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | WKLY AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | DAILY MX | report only | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 1200 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 3750 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, total [as N] | MO AVG | <= 450 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 6.3 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 9.5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 3.2 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 1 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 1.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | May |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Aug, Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | all year |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 150 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 480 lb/d | May |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1426 lb/d | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 946 lb/d | Nov |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 225 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 150 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrite total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrite total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, nitrite total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrite total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, nitrite total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrite total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, nitrate total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrate total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, nitrate total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, Kjeldahl, total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, Kjeldahl, total [as N] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | MO AVG | <= .101 mg/L | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | MO AVG | <= 1 mg/L | Jan, Feb, Mar, Nov, Dec |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | DAILY MX | report only | Jan, Feb, Mar, Nov, Dec |
| 001 | Phosphorus, total [as P] | MO AVG | <= 15.2 lb/d | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | MO AVG | <= 150 lb/d | Jan, Feb, Mar, Nov, Dec |
| 001 | Hardness, total [as CaCO3] | DAILY MX | report only | Aug, Nov |
| 001 | Hardness, total [as CaCO3] | DAILY MX | report only | all year |
| 001 | Copper, total [as Cu] | MO AVG | <= 10.3 ug/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | <= 13.7 ug/L | all year |
| 001 | Nickel, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Nickel, total recoverable | DAILY MX | report only | all year |
| 001 | Zinc, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Zinc, total recoverable | DAILY MX | report only | all year |
| 001 | Aluminum, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Aluminum, total recoverable | DAILY MX | report only | all year |
| 001 | Cadmium, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Cadmium, total recoverable | DAILY MX | report only | all year |
| 001 | Lead, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Lead, total recoverable | DAILY MX | report only | all year |
| 001 | Copper, total recoverable | DAILY MX | report only | Aug, Nov |
| 001 | Copper, total recoverable | DAILY MX | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | ROLL AVG | <= 18 MGD | all year |
| 001 | Flow, in conduit or thru treatment plant | MO AVG | report only | all year |
| 001 | Flow, in conduit or thru treatment plant | DAILY MX | report only | all year |
| 001 | Chlorine, total residual | MO AVG | <= 11 ug/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 19 ug/L | all year |
| 001 | E. coli, colony forming units [CFU] | MO GEO | <= 126 CFU/100mL | all year |
| 001 | E. coli, colony forming units [CFU] | DAILY MX | <= 409 CFU/100mL | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 5 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 15 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 8 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 25 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 15 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 30 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 750 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 2250 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 2250 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 4500 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 1200 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 3750 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 5 C] | MO AV MN | >= 85 % | all year |
| 001 | Solids, suspended percent removal | MO AV MN | >= 85 % | all year |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | >= 100 % | Aug, Nov |
| 001 | LC50 Static 48Hr Acute Ceriodaphnia dubia | DAILY MN | >= 100 % | all year |
| 001 | NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | DAILY MN | >= 98 % | Aug, Nov |
| 001 | NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | DAILY MN | >= 98 % | all year |
Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states