NPDES permit MA0102873 · Major POTW · administratively continued, expires 2021-01-31 · EPA's file as of 2026-09-19
Check this month's numbers before you fileLast period with anything received: 2026-08-31. Most often over: BOD, carbonaceous [5 day, 20 C] (3), Copper, total [as Cu] (2), Noael Statre 7Day Chronic Menidia (1).
Reports are due about 16 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 | Nitrogen, ammonia total [as N] | MO AVG | <= 10 mg/L | Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | MO AVG | <= 10 mg/L | May, Jun |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jul, Aug, Sep, Oct |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | Jan, Feb, Mar, Apr, Nov, Dec |
| 001 | Nitrogen, ammonia total [as N] | DAILY MX | report only | May, Jun |
| 001 | Copper, total [as Cu] | MO AVG | <= 25 ug/L | all year |
| 001 | Copper, total [as Cu] | DAILY MX | report only | all year |
| 001 | Nickel, total [as Ni] | MO AVG | <= 13 ug/L | all year |
| 001 | Nickel, total [as Ni] | DAILY MX | report only | 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