GSP Schiller LLC

NPDES permit NH0001473 · Major NON-POTW · administratively continued, expires 2023-06-30 · 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 2023-06-30 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 152 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among NH permits in EPA's filings — check your permit).

Limits in force (95)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Oxidants, total residualINST MAX <= .2 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG <= 40 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX <= 40 MGD all year
001Temp. diff. between intake and dischargeMO AVG report only all year
001Temp. diff. between intake and dischargeDAILY MX <= 25 deg F all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
002Oxidants, total residualINST MAX <= .2 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG <= 43.5 MGD all year
002Flow, in conduit or thru treatment plantDAILY MX <= 52.2 MGD all year
002Temp. diff. between intake and dischargeMO AVG report only all year
002Temp. diff. between intake and dischargeDAILY MX <= 25 deg F all year
003Temperature, water deg. fahrenheitMO AVG report only all year
003Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
003Oxidants, total residualINST MAX <= .2 mg/L all year
003Flow, in conduit or thru treatment plantMO AVG <= 50.2 MGD all year
003Flow, in conduit or thru treatment plantDAILY MX <= 50.2 MGD all year
003Temp. diff. between intake and dischargeMO AVG report only all year
003Temp. diff. between intake and dischargeDAILY MX <= 25 deg F all year
004Temperature, water deg. fahrenheitMO AVG report only all year
004Temperature, water deg. fahrenheitDAILY MX <= 95 deg F all year
004Oxidants, total residualINST MAX <= .2 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG <= 50.2 MGD all year
004Flow, in conduit or thru treatment plantDAILY MX <= 50.2 MGD all year
004Temp. diff. between intake and dischargeMO AVG report only all year
004Temp. diff. between intake and dischargeDAILY MX <= 25 deg F all year
006pHMINIMUM >= 6.5 SU all year
006pHMAXIMUM <= 8 SU all year
006Solids, total suspendedMO AVG <= 30 mg/L all year
006Solids, total suspendedDAILY MX <= 100 mg/L all year
006Oil & GreaseMO AVG <= 15 mg/L all year
006Oil & GreaseDAILY MX <= 20 mg/L all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
011pHMINIMUM >= 6.5 SU all year
011pHMAXIMUM <= 8 SU all year
011Solids, total suspendedMO AVG <= 30 mg/L all year
011Solids, total suspendedDAILY MX <= 100 mg/L all year
011Oil & GreaseMO AVG <= 15 mg/L all year
011Oil & GreaseDAILY MX <= 20 mg/L all year
011Flow, in conduit or thru treatment plantMO AVG report only all year
011Flow, in conduit or thru treatment plantDAILY MX report only all year
015pHMINIMUM >= 6.5 SU all year
015pHMAXIMUM <= 8 SU all year
015Solids, total suspendedMO AVG <= 30 mg/L all year
015Solids, total suspendedDAILY MX <= 100 mg/L all year
015Oil & GreaseMO AVG <= 15 mg/L all year
015Oil & GreaseDAILY MX <= 20 mg/L all year
015Flow, in conduit or thru treatment plantMO AVG <= 61800 gal/d all year
015Flow, in conduit or thru treatment plantDAILY MX <= 85300 gal/d all year
016pHMINIMUM >= 6 SU all year
016pHMAXIMUM <= 9 SU all year
016Solids, total suspendedMO AVG <= 30 mg/L all year
016Solids, total suspendedDAILY MX <= 100 mg/L all year
016Oil & GreaseMO AVG <= 15 mg/L all year
016Oil & GreaseDAILY MX <= 20 mg/L all year
016Copper, total [as Cu]MO AVG <= 1 mg/L all year
016Copper, total [as Cu]DAILY MX <= 1 mg/L all year
016Iron, total [as Fe]MO AVG <= 1 mg/L all year
016Iron, total [as Fe]DAILY MX <= 1 mg/L all year
016Flow, in conduit or thru treatment plantMO AVG <= 216000 gal/d all year
016Flow, in conduit or thru treatment plantDAILY MX <= 360000 gal/d all year
016Nitrogen, TotalDAILY MX report only all year
017pHMINIMUM >= 6 SU all year
017pHMAXIMUM <= 9 SU all year
017Solids, total suspendedMO AVG <= 30 mg/L all year
017Solids, total suspendedDAILY MX <= 100 mg/L all year
017Oil & GreaseMO AVG <= 15 mg/L all year
017Oil & GreaseDAILY MX <= 20 mg/L all year
017Copper, total [as Cu]MO AVG <= 1 mg/L all year
017Copper, total [as Cu]DAILY MX <= 1 mg/L all year
017Iron, total [as Fe]MO AVG <= 1 mg/L all year
017Iron, total [as Fe]DAILY MX <= 1 mg/L all year
017Flow, in conduit or thru treatment plantMO AVG report only all year
017Flow, in conduit or thru treatment plantDAILY MX <= 360000 gal/d all year
017Nitrogen, TotalDAILY MN report only all year
018pHMINIMUM >= 6.5 SU all year
018pHMAXIMUM <= 8 SU all year
018Solids, total suspendedMO AVG <= 15 mg/L all year
018Solids, total suspendedDAILY MX <= 20 mg/L all year
018Oil & GreaseMO AVG <= 15 mg/L all year
018Oil & GreaseDAILY MX <= 20 mg/L all year
018Flow, in conduit or thru treatment plantMO AVG report only all year
018Flow, in conduit or thru treatment plantDAILY MX report only all year
020Flow, in conduit or thru treatment plantDAILY MX <= 108000 gal/d all year
021Flow, in conduit or thru treatment plantDAILY MX <= 108000 gal/d all year
SUMFlow rateMO AVG <= 41.8 MGD Apr, May, Jun, Jul, Aug, Sep, Oct
SUMFlow rateMO AVG <= 83.6 MGD Jan, Feb, Mar, Nov, Dec
SUMFlow rateDAILY MX <= 125.8 MGD Apr, May, Jun, Jul, Aug, Sep, Oct
SUMFlow rateDAILY MX <= 125.8 MGD Jan, Feb, Mar, Nov, Dec
SUMFlow rateROLL AVG <= 30.19 MGD all year
SUMScreen EfficiencyROLL AVG <= 24 % 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