PITTSFIELD ECONOMIC DEVEL.AUTH

NPDES permit MA0040231 · Minor NON-POTW · effective, expires 2026-10-31 · 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

3values over a limit
2required values missing, on 1 form(s)
0of 16 forms filed late

Last period with anything received: 2026-07-31. Most often over: Solids, total suspended (2), Oil & Grease (1).

Reporting

Reports are due about 30 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (40)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Oil & GreaseMO AVG report only all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only Apr, Oct
001Nitrogen, ammonia total [as N]DAILY MX report only Apr, Oct
001Hardness, total [as CaCO3]MO AVG report only Apr, Oct
001Hardness, total [as CaCO3]DAILY MX report only Apr, Oct
001Cadmium, total [as Cd]MO AVG report only Apr, Oct
001Cadmium, total [as Cd]DAILY MX report only Apr, Oct
001Chromium, total [as Cr]MO AVG report only Apr, Oct
001Chromium, total [as Cr]DAILY MX report only Apr, Oct
001Copper, total [as Cu]MO AVG report only Apr, Oct
001Copper, total [as Cu]DAILY MX report only Apr, Oct
001Lead, total [as Pb]MO AVG report only Apr, Oct
001Lead, total [as Pb]DAILY MX report only Apr, Oct
001Nickel, total [as Ni]MO AVG report only Apr, Oct
001Nickel, total [as Ni]DAILY MX report only Apr, Oct
001Zinc, total [as Zn]MO AVG report only Apr, Oct
001Zinc, total [as Zn]DAILY MX report only Apr, Oct
001Aluminum, total [as Al]MO AVG report only Apr, Oct
001Aluminum, total [as Al]DAILY MX report only Apr, Oct
001Polychlorinated biphenyls [PCBs]MO AVG report only all year
001Polychlorinated biphenyls [PCBs]DAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG report only Apr, Oct
001Chlorine, total residualDAILY MX report only Apr, Oct
001E. coliMO AVG report only all year
001E. coliDAILY MX report only all year
001Suspended Solids, TotalMO AVG report only Apr, Oct
001Suspended Solids, TotalDAILY MX report only Apr, Oct
001Specific conductance [umho/cm]MO AVG report only Apr, Oct
001Specific conductance [umho/cm]DAILY MX report only Apr, Oct
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only Apr, Oct
001LC50 Static 48Hr Acute Pimephales promelasDAILY MN report only Apr, Oct

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