BRIDGEWATER POWER COMPANY

NPDES permit NH0022021 · Major NON-POTW · administratively continued, expires 2024-10-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2024-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
3of 21 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (54)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only Sep
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
001Flow rateMO AVG report only all year
001Flow rateDAILY MX <= .5 MGD all year
001Flow rateDAILY MX report only all year
001Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8 SU all year
001pHMAXIMUM <= 8 SU all year
001pHMAXIMUM report only all year
001pHMAXIMUM report only Sep
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedDAILY MX <= 100 mg/L all year
001Solids, total suspendedDAILY MX report only all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Carbon, dissolved organic [as C]DAILY MX report only Sep
001Hardness, total [as CaCO3]DAILY MX report only Sep
001Hardness, total [as CaCO3]DAILY MX report only Sep
001Cadmium, total [as Cd]DAILY MX report only Sep
001Cadmium, total [as Cd]DAILY MX report only Sep
001Copper, total [as Cu]MO AVG <= 520 ug/L all year
001Copper, total [as Cu]DAILY MX <= 520 ug/L all year
001Copper, total [as Cu]DAILY MX report only Sep
001Copper, total [as Cu]DAILY MX report only Sep
001Iron, total [as Fe]DAILY MX report only all year
001Lead, total [as Pb]MO AVG <= 210 ug/L all year
001Lead, total [as Pb]DAILY MX <= 790 ug/L all year
001Lead, total [as Pb]DAILY MX report only Sep
001Lead, total [as Pb]DAILY MX report only Sep
001Nickel, total [as Ni]DAILY MX report only Sep
001Nickel, total [as Ni]DAILY MX report only Sep
001Zinc, total [as Zn]DAILY MX report only Sep
001Zinc, total [as Zn]DAILY MX report only Sep
001Aluminum, total [as Al]MO AVG <= 87 ug/L all year
001Aluminum, total [as Al]DAILY MX report only Sep
001Aluminum, total [as Al]DAILY MX report only Sep
001Chlorine, total residualDAILY MX <= 200 ug/L all year
001Nitrogen, Ammonia TotalDAILY MX report only Sep
001Nitrogen, Ammonia TotalDAILY MX report only Sep
001LC50 Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 50 % Sep
001LC50 Static 48Hr Acute Pimephales promelasDAILY MN >= 50 % Sep
001NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only Sep
001NOAEL Static 48Hr Acute Pimephales promelasDAILY MN report only Sep
002Flow rateDAILY MX report only all year
002Oxygen demand, chem. [high level] [COD]DAILY MX report only all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 8 SU all year
002pHDAILY MX report only all year
002Solids, total suspendedDAILY MX report only all year
002Oil & GreaseDAILY MX <= 15 mg/L all year
002Iron, total [as Fe]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