NATIONAL GRID GENERATION, LLC

NPDES permit NY0005941 · Major NON-POTW · administratively continued, expires 2021-06-30 · 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 2021-06-30 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)
0of 102 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among NY permits in EPA's filings — check your permit).

Limits in force (124)

OutfallParameterStatisticLimitMonths
002Flow rateDAILY MX report only all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedDAILY MX <= 50 mg/L all year
002Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
005Flow rateDAILY MX report only all year
005pHMINIMUM >= 6 SU all year
005pHMAXIMUM <= 9 SU all year
005Solids, total suspendedDAILY MX <= 50 mg/L all year
005Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Temperature, water deg. fahrenheitINST MAX <= 90 deg F all year
006Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
006Temperature, water deg. fahrenheitDAILY MX <= 92 deg F all year
006Flow rateMO AVG report only all year
006Flow rateDAILY MX report only all year
006Flow rateDAILY MX report only all year
006Flow rateDAILY MX report only all year
006Flow rateDAILY MX report only all year
006Flow rateDAILY MX report only all year
006Flow rateDAILY MX report only all year
006Waste heat rejection rateDAILY MX <= 9100 MBTU/hr all year
006pHMINIMUM >= 6 SU all year
006pHMINIMUM >= 6 SU all year
006pHMINIMUM >= 6 SU all year
006pHMINIMUM >= 6 SU all year
006pHMAXIMUM <= 9 SU all year
006pHMAXIMUM <= 9 SU all year
006pHMAXIMUM <= 9 SU all year
006pHMAXIMUM <= 9 SU all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Solids, total suspendedDAILY MX <= 50 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Nitrogen, total [as N]DAILY MX report only all year
006Nitrogen, total [as N]DAILY MX report only all year
006Nitrogen, ammonia total [as N]DAILY MX report only all year
006Nitrogen, ammonia total [as N]DAILY MX report only all year
006Arsenic, total [as As]DAILY MX <= .1 mg/L all year
006Chromium, total [as Cr]DAILY MX <= .5 mg/L all year
006Copper, total [as Cu]DAILY MX <= .5 mg/L all year
006Iron, total [as Fe]DAILY MX <= 4 mg/L all year
006Iron, total [as Fe]DAILY MX <= 1 mg/L all year
006Iron, total [as Fe]DAILY MX <= 4 mg/L all year
006Iron, total [as Fe]DAILY MX <= 4 mg/L all year
006Iron, total [as Fe]DAILY MX <= 4 mg/L all year
006Lead, total [as Pb]DAILY MX <= .4 mg/L all year
006Manganese, total [as Mn]DAILY MX <= 2 mg/L all year
006Nickel, total [as Ni]DAILY MX <= 2 mg/L all year
006Vanadium, total [as V]DAILY MX <= 15 mg/L all year
006Zinc, total [as Zn]DAILY MX <= 1 mg/L all year
006Nitrogen, ammonia, total [as NH3]DAILY MX report only all year
006Nitrogen, ammonia, total [as NH3]DAILY MX report only all year
006Temperature rise, length of excursionANNL MAX <= 96 hr all year
006Temperature, length of excursionANNL MAX <= 10 d all year
006Flow, maximum during 24 hr periodDAILY AV report only all year
006Flow, maximum during 24 hr periodDAILY MX report only all year
006Temp. diff. between intake and dischargeDAILY MX <= 35 deg F Jan, Feb, Dec
006Temp. diff. between intake and dischargeDAILY MX <= 30 deg F Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
008Flow rateDAILY MX report only all year
008Flow rateDAILY MX report only all year
008pHMINIMUM >= 6 SU all year
008pHMAXIMUM <= 9 SU all year
008Solids, total suspendedDAILY MX <= 50 mg/L all year
008Solids, total suspendedDAILY MX <= 50 mg/L all year
008Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
008Oil & GreaseDAILY MX <= 15 mg/L all year
008Iron, total [as Fe]DAILY MX <= 4 mg/L all year
008Nitrogen, ammonia, total [as NH3]DAILY MX report only all year
013Flow rateDAILY MX report only all year
013pHMINIMUM >= 6 SU all year
013pHMAXIMUM <= 9 SU all year
013Solids, total suspendedINST MAX <= 50 mg/L all year
013Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
014Nitrogen, total [as N]DAILY MX report only all year
040Flow rateDAILY MX report only all year
040pHMINIMUM >= 6.5 SU all year
040pHMAXIMUM <= 8.5 SU all year
040Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
040Copper, total [as Cu]DAILY MX <= 1 mg/L all year
040Iron, total [as Fe]DAILY MX <= .6 mg/L all year
041Flow rateDAILY MX report only all year
041pHMINIMUM >= 6.5 SU all year
041pHMAXIMUM <= 8.5 SU all year
041Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
041TolueneDAILY MX <= 5 ug/L all year
041BenzeneDAILY MX <= .8 ug/L all year
041ChryseneDAILY MX <= .6 ug/L all year
041EthylbenzeneDAILY MX <= 5 ug/L all year
041FluoreneDAILY MX <= 50 ug/L all year
041PyreneDAILY MX <= 50 ug/L all year
041NaphthaleneDAILY MX <= 10 ug/L all year
041ortho-xyleneDAILY MX <= 5 ug/L all year
041Xylene, meta & para in combinationDAILY MX <= 10 ug/L all year
042Flow rateDAILY MX report only all year
042pHMINIMUM >= 6.5 SU all year
042pHMAXIMUM <= 8.5 SU all year
042Oil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
042TolueneDAILY MX <= 5 ug/L all year
042BenzeneDAILY MX <= .8 ug/L all year
042ChryseneDAILY MX <= .6 ug/L all year
042EthylbenzeneDAILY MX <= 5 ug/L all year
042FluoreneDAILY MX <= 50 ug/L all year
042PyreneDAILY MX <= 50 ug/L all year
042NaphthaleneDAILY MX <= 10 ug/L all year
042ortho-xyleneDAILY MX <= 5 ug/L all year
042Xylene, meta & para in combinationDAILY MX <= 10 ug/L all year
TTWFlow rateDAILY MX report only all year
TTWpHMINIMUM >= 6 SU all year
TTWpHMAXIMUM <= 9 SU all year
TTWOil and grease, hexane extr methodDAILY MX <= 15 mg/L all year
TTWTolueneDAILY MX <= 20 ug/L all year
TTWBenzeneDAILY MX <= 20 ug/L all year
TTWEthylbenzeneDAILY MX <= 20 ug/L all year
TTWChlorine, total residualDAILY MX <= .5 mg/L all year
TTWVolume, totalDAILY MX report only all year
TTWXylene [mix of m+o+p]DAILY MX <= 20 ug/L 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