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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 file

EPA's record, 2025-09-01 to 2026-08-31

8values over a limit
0required values missing, on 0 form(s)
1of 16 forms filed late

Last 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).

Reporting

Reports are due about 16 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (10)

OutfallParameterStatisticLimitMonths
001Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L May, Jun
001Nitrogen, ammonia total [as N]DAILY MX report only Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Jan, Feb, Mar, Apr, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX report only May, Jun
001Copper, total [as Cu]MO AVG <= 25 ug/L all year
001Copper, total [as Cu]DAILY MX report only all year
001Nickel, total [as Ni]MO AVG <= 13 ug/L all year
001Nickel, 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