NPDES permit MA0100595 · Major POTW · administratively continued, expires 2013-09-30 · EPA's file as of 2026-09-19
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This permit expired on 2013-09-30 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: 2026-08-31. Most often over: Nitrogen, ammonia total [as N] (10), Solids, total suspended (5), Nitrogen, total [as N] (2).
Reports are due about 31 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).
| Outfall | Parameter | Statistic | Limit | Months |
|---|---|---|---|---|
| 001 | Oxygen, dissolved [DO] | MINIMUM | >= 6 mg/L | all year |
| 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 | <= 5 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 | <= 1077 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | MO AVG | <= 359 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | DAILY MX | <= 2153 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Solids, total suspended | DAILY MX | <= 1077 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | MO AVG | report only | all year |
| 001 | Solids, total suspended | WKLY AVG | <= 359 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Solids, total suspended | WKLY AVG | <= 1794 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, total [as N] | MO AVG | <= 8 mg/L | 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] | MO AVG | <= 33 mg/L | May, Jun, Jul, Aug, Sep, Oct |
| 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] | DAILY MX | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, total [as N] | MO AVG | report only | May, Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 12.5 mg/L | Jan, Feb, Mar, Apr, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 8.3 mg/L | Nov |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 1.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 4.2 mg/L | May |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 1.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | <= 2.5 mg/L | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 108 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | WKLY AVG | <= 108 lb/d | Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphorus, total [as P] | MO AVG | <= .1 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 | 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] | MO AVG | report only | Apr, May, Jun, Jul, Aug, Sep, Oct |
| 001 | Phosphate, ortho, dissolved [as P] | MO AVG | report only | Jan, Feb, Mar, Nov, Dec |
| 001 | Phosphate, ortho, dissolved [as P] | DAILY MX | report only | Jan, Feb, Mar, Nov, Dec |
| 001 | Nickel, total recoverable | MO AVG | <= 73.1 ug/L | all year |
| 001 | Silver total recoverable | DAILY MX | <= 5.3 ug/L | all year |
| 001 | Aluminum, total recoverable | MO AVG | <= 122 ug/L | all year |
| 001 | Aluminum, total recoverable | DAILY MX | <= 950 ug/L | all year |
| 001 | Cadmium, total recoverable | MO AVG | <= .4 ug/L | all year |
| 001 | Cadmium, total recoverable | DAILY MX | <= 2.9 ug/L | all year |
| 001 | Lead, total recoverable | MO AVG | <= 4.5 ug/L | all year |
| 001 | Copper, total recoverable | MO AVG | <= 13 ug/L | all year |
| 001 | Copper, total recoverable | DAILY MX | <= 19.6 ug/L | 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 | Flow, in conduit or thru treatment plant | ROLL AVG | <= 8.6 MGD | all year |
| 001 | Chlorine, total residual | MO AVG | <= 15.4 ug/L | all year |
| 001 | Chlorine, total residual | DAILY MX | <= 26.6 ug/L | all year |
| 001 | Coliform, fecal general | MO GEO | <= 200 #/100mL | all year |
| 001 | Coliform, fecal general | DAILY MX | <= 400 #/100mL | all year |
| 001 | Cyanide, total recoverable | MO AVG | <= 6.3 ug/L | all year |
| 001 | Cyanide, total recoverable | DAILY MX | <= 30.8 ug/L | 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 | <= 5 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 | <= 359 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | MO AVG | <= 1077 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 1077 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, carbonaceous [5 day, 20 C] | DAILY MX | <= 2153 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] | MO AVG | report only | all year |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 1794 lb/d | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | BOD, carbonaceous [5 day, 20 C] | WKLY AVG | <= 359 lb/d | May, Jun, Jul, Aug, Sep, Oct |
| 001 | BOD, 5-day, percent removal | 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 % | Feb, May, Aug, Nov |
| 001 | NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | DAILY MN | >= 71 % | Feb, May, Aug, Nov |
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