THOMASTON TOWN OF

NPDES permit ME0100668 · Major POTW · administratively continued, expires 2023-09-30 · 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 2023-09-30 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 74 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 ME permits in EPA's filings — check your permit).

Limits in force (99)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L Jan, Feb, Mar
001BOD, 5-day, 20 deg. CDAILY MX <= 50 mg/L Jan, Feb, Mar
001BOD, 5-day, 20 deg. CMO AVG <= 225 lb/d Jan, Feb, Mar
001BOD, 5-day, 20 deg. CDAILY MX <= 375 lb/d Jan, Feb, Mar
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L Jan, Feb, Mar
001BOD, 5-day, 20 deg. CWKLY AVG <= 338 lb/d Jan, Feb, Mar
001pHMINIMUM >= 6 SU Jan, Feb, Mar
001pHMAXIMUM <= 9 SU Jan, Feb, Mar
001Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar
001Solids, total suspendedDAILY MX <= 50 mg/L Jan, Feb, Mar
001Solids, total suspendedMO AVG <= 225 lb/d Jan, Feb, Mar
001Solids, total suspendedDAILY MX <= 375 lb/d Jan, Feb, Mar
001Solids, total suspendedWKLY AVG <= 45 mg/L Jan, Feb, Mar
001Solids, total suspendedWKLY AVG <= 338 lb/d Jan, Feb, Mar
001Solids, settleableDAILY MX <= .3 mL/L Jan, Feb, Mar
001Flow, in conduit or thru treatment plantMO AVG <= .9 MGD Jan, Feb, Mar
001Flow, in conduit or thru treatment plantDAILY MX report only Jan, Feb, Mar
001Chlorine, total residualDAILY MX <= 1 mg/L Jan, Feb, Mar
001Coliform, fecal generalMO GEO <= 15 #/100mL Jan, Feb, Mar
001Coliform, fecal generalDAILY MX <= 50 #/100mL Jan, Feb, Mar
001BOD, 5-day, percent removalMO AV MN >= 85 % Jan, Feb, Mar
001Solids, suspended percent removalMO AV MN >= 85 % Jan, Feb, Mar
002BOD, 5-day, 20 deg. CDAILY MX <= 100 mg/L Apr, May, Aug, Oct
002pHMAXIMUM report only Apr, May, Aug, Oct
002Solids, total suspendedDAILY MX report only Apr, May, Aug, Oct
002Nitrogen, nitrate total [as N]DAILY MX report only Apr, May, Aug, Oct
002Lagoon freeboardDAILY MN >= 3 ft Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
02BTemperature, water deg. centigradeDAILY MX report only May, Oct
02BTemperature, water deg. centigradeDAILY MX report only May, Oct
02BSpecific conductanceDAILY MX report only May, Oct
02BSpecific conductanceDAILY MX report only May, Oct
02BpHMINIMUM report only May, Oct
02BpHMINIMUM report only May, Oct
02BpHMAXIMUM report only May, Oct
02BpHMAXIMUM report only May, Oct
02BSolids, total suspendedDAILY MX report only May, Oct
02BSolids, total suspendedDAILY MX report only May, Oct
02BNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02BNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02BDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02BDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02DTemperature, water deg. centigradeDAILY MX report only May, Oct
02DTemperature, water deg. centigradeDAILY MX report only May, Oct
02DSpecific conductanceDAILY MX report only May, Oct
02DSpecific conductanceDAILY MX report only May, Oct
02DpHMINIMUM report only May, Oct
02DpHMINIMUM report only May, Oct
02DpHMAXIMUM report only May, Oct
02DpHMAXIMUM report only May, Oct
02DSolids, total suspendedDAILY MX report only May, Oct
02DSolids, total suspendedDAILY MX report only May, Oct
02DNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02DNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02DDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02DDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02GTemperature, water deg. centigradeDAILY MX report only May, Oct
02GTemperature, water deg. centigradeDAILY MX report only May, Oct
02GSpecific conductanceDAILY MX report only May, Oct
02GSpecific conductanceDAILY MX report only May, Oct
02GpHMINIMUM report only May, Oct
02GpHMINIMUM report only May, Oct
02GpHMAXIMUM report only May, Oct
02GpHMAXIMUM report only May, Oct
02GSolids, total suspendedDAILY MX report only May, Oct
02GSolids, total suspendedDAILY MX report only May, Oct
02GNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02GNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02GDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02GDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02HTemperature, water deg. centigradeDAILY MX report only May, Oct
02HSpecific conductanceDAILY MX report only May, Oct
02HpHMINIMUM report only May, Oct
02HpHMAXIMUM report only May, Oct
02HSolids, total suspendedDAILY MX report only May, Oct
02HNitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02HDepth to water level ft below landsurfaceDAILY MX report only May, Oct
02ITemperature, water deg. centigradeDAILY MX report only May, Oct
02ISpecific conductanceDAILY MX report only May, Oct
02IpHMINIMUM report only May, Oct
02IpHMAXIMUM report only May, Oct
02ISolids, total suspendedDAILY MX report only May, Oct
02INitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May, Oct
02IDepth to water level ft below landsurfaceDAILY MX report only May, Oct
FLDApplication rate, gallons spray irrigationWKLY MAX <= 758700 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDApplication rate, gallons spray irrigationWKLY MAX <= 957050 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDApplication rate, gallons spray irrigationWKLY MAX <= 857650 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDApplication rate, gallons spray irrigationWKLY MAX <= 857650 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDApplication rate, gallons spray irrigationWKLY MAX <= 923650 gal Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDApplication rate, gallons spray irrigationMO TOTAL report only Jan, Feb, Mar, Dec
FLDApplication rate, gallons spray irrigationYA report only Jan, Feb, Mar, Dec
FLDApplication rate, gallons spray irrigationYA <= 30 Mgal Mar
FLDFlow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDFlow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDFlow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDFlow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
FLDFlow, totalMO TOTAL report only Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
UD1Temperature, water deg. centigradeDAILY MX report only Jul, Aug, Sep
UD1Flow rateDAILY MX report only Jul, Aug, Sep
UD1Specific conductanceDAILY MX report only Jul, Aug, Sep

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