NEWINGTON POWER FACILITY

NPDES permit NH0023361 · Major NON-POTW · administratively continued, expires 2017-12-31 · 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 2017-12-31 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

2values over a limit
0required values missing, on 0 form(s)
0of 48 forms filed late

Last period with anything received: 2026-08-31. Most often over: Priority Pollutants (2).

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 (47)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
001Flow rateINST MIN >= 451 gal/min all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001SalinityMO AVG report only all year
001SalinityDAILY MX <= 66000 ppm all year
001SalinityDAILY MX report only all year
001Solids, totalDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Carbon, tot organic [TOC]DAILY MX report only all year
001Cadmium, total [as Cd]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Lead, total [as Pb]DAILY MX report only all year
001Nickel, total [as Ni]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total recoverableMO AVG <= 1 mg/L all year
001Zinc, total recoverableDAILY MX <= 1 mg/L all year
001Chromium, total recoverableMO AVG <= .2 mg/L all year
001Chromium, total recoverableDAILY MX <= .2 mg/L all year
001Oxidants, total residualMO AVG <= 0 mg/L all year
001Oxidants, total residualDAILY MX <= 0 mg/L all year
001Oxidants, total residualDAILY MX report only all year
001Priority PollutantsMO AVG <= 0 mg/L Oct, Nov, Dec
001Priority PollutantsDAILY MX <= 0 mg/L Oct, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG <= 4 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 4 MGD all year
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)DAILY MN >= 50 % all year
001LC50 Static 48Hr Acute MenidiaDAILY MN >= 50 % all year
001Noael Static 48Hr Acute Mysid. BahiaDAILY MN report only all year
001NOAEL Static 48Hr Acute Menidia sp.DAILY MN report only all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Oil & GreaseMO AVG <= 15 mg/L all year
004Oil & GreaseDAILY MX <= 20 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 100 mg/L all year
005Oil & GreaseMO AVG <= 15 mg/L all year
005Oil & GreaseDAILY MX <= 20 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY 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