GUILFORD-SANGERVILLE SANITARY DISTRICT

NPDES permit ME0102032 · Major POTW · administratively continued, expires 2020-09-30 · 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 2020-09-30 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 68 forms filed late

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

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 (195)

OutfallParameterStatisticLimitMonths
001BOD, 5-day, 20 deg. CMO AVG <= 66 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 33 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 39 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 79 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 123 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 62 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 75 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 150 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 258 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 258 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 305 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 305 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 478 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 478 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 582 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 582 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 57 mg/L all year
001Solids, total suspendedMO AVG <= 114 mg/L all year
001Solids, total suspendedMO AVG <= 159 mg/L all year
001Solids, total suspendedMO AVG <= 80 mg/L all year
001Solids, total suspendedDAILY MX <= 109 mg/L all year
001Solids, total suspendedDAILY MX <= 218 mg/L all year
001Solids, total suspendedDAILY MX <= 311 mg/L all year
001Solids, total suspendedDAILY MX <= 155 mg/L all year
001Solids, total suspendedMO AVG <= 441 lb/d all year
001Solids, total suspendedMO AVG <= 441 lb/d all year
001Solids, total suspendedMO AVG <= 617 lb/d all year
001Solids, total suspendedMO AVG <= 617 lb/d all year
001Solids, total suspendedDAILY MX <= 845 lb/d all year
001Solids, total suspendedDAILY MX <= 845 lb/d all year
001Solids, total suspendedDAILY MX <= 1206 lb/d all year
001Solids, total suspendedDAILY MX <= 1206 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG report only Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 13 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 13 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 13 lb/d Jun, Jul, Aug, Sep
001Nitrogen, ammonia total [as N]MO AVG <= 13 lb/d Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]MO AVG report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Phosphorus, total [as P]DAILY MX report only Jun, Jul, Aug, Sep
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]MO AVG report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]DAILY MX report only all year
001Chromium, total [as Cr]MO AVG <= 3.4 lb/d all year
001Chromium, total [as Cr]MO AVG <= 2.1 lb/d all year
001Chromium, total [as Cr]MO AVG <= 2.1 lb/d all year
001Chromium, total [as Cr]MO AVG <= 3.4 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 6.9 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 4.1 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 4.1 lb/d all year
001Chromium, total [as Cr]DAILY MX <= 6.9 lb/d all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]MO AVG report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX report only all year
001Copper, total [as Cu]DAILY MX <= .09 lb/d all year
001Copper, total [as Cu]DAILY MX <= .09 lb/d all year
001Copper, total [as Cu]DAILY MX <= .09 lb/d all year
001Copper, total [as Cu]DAILY MX <= .09 lb/d all year
001Antimony, total [as Sb]MO AVG report only all year
001Antimony, total [as Sb]MO AVG report only all year
001Antimony, total [as Sb]MO AVG report only all year
001Antimony, total [as Sb]MO AVG report only all year
001Antimony, total [as Sb]MO AVG <= 3.4 lb/d all year
001Antimony, total [as Sb]MO AVG <= 3.4 lb/d all year
001Antimony, total [as Sb]MO AVG <= 3.4 lb/d all year
001Antimony, total [as Sb]MO AVG <= 3.4 lb/d all year
001E. coli, thermotol, MF, MTECMO GEO <= 64 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECMO GEO <= 64 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECMO GEO <= 64 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECMO GEO <= 64 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECDAILY MX <= 427 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECDAILY MX <= 427 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECDAILY MX <= 427 #/100mL May, Jun, Jul, Aug, Sep
001E. coli, thermotol, MF, MTECDAILY MX <= 427 #/100mL May, Jun, Jul, Aug, Sep
001PhenolsMO AVG report only all year
001PhenolsMO AVG report only all year
001PhenolsMO AVG report only all year
001PhenolsMO AVG report only all year
001PhenolsDAILY MX report only all year
001PhenolsDAILY MX report only all year
001PhenolsDAILY MX report only all year
001PhenolsDAILY MX report only all year
001PhenolsMO AVG <= 2.1 lb/d all year
001PhenolsMO AVG <= 3.4 lb/d all year
001PhenolsMO AVG <= 2.1 lb/d all year
001PhenolsMO AVG <= 3.4 lb/d all year
001PhenolsDAILY MX <= 4.1 lb/d all year
001PhenolsDAILY MX <= 6.9 lb/d all year
001PhenolsDAILY MX <= 4.1 lb/d all year
001PhenolsDAILY MX <= 6.9 lb/d all year
001Flow, in conduit or thru treatment plantMO AVG <= .465 MGD all year
001Flow, in conduit or thru treatment plantMO AVG <= .465 MGD all year
001Flow, in conduit or thru treatment plantMO AVG <= .93 MGD all year
001Flow, in conduit or thru treatment plantMO AVG <= .93 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualDAILY MX <= .17 mg/L all year
001Chlorine, total residualDAILY MX <= .3 mg/L all year
001Chlorine, total residualDAILY MX <= .3 mg/L all year
001Chlorine, total residualDAILY MX <= .17 mg/L all year
001Mercury, total [as Hg]MO AVG <= 25.8 ng/L all year
001Mercury, total [as Hg]MO AVG <= 25.8 ng/L all year
001Mercury, total [as Hg]MO AVG <= 25.8 ng/L all year
001Mercury, total [as Hg]MO AVG <= 25.8 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 38.7 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 38.7 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 38.7 ng/L all year
001Mercury, total [as Hg]DAILY MX <= 38.7 ng/L all year
001Chemical oxygen demand [COD]MO AVG <= 234 mg/L all year
001Chemical oxygen demand [COD]MO AVG <= 468 mg/L all year
001Chemical oxygen demand [COD]MO AVG <= 710 mg/L all year
001Chemical oxygen demand [COD]MO AVG <= 355 mg/L all year
001Chemical oxygen demand [COD]DAILY MX <= 567 mg/L all year
001Chemical oxygen demand [COD]DAILY MX <= 1133 mg/L all year
001Chemical oxygen demand [COD]DAILY MX <= 1404 mg/L all year
001Chemical oxygen demand [COD]DAILY MX <= 702 mg/L all year
001Chemical oxygen demand [COD]MO AVG <= 1817 lb/d all year
001Chemical oxygen demand [COD]MO AVG <= 1817 lb/d all year
001Chemical oxygen demand [COD]MO AVG <= 2752 lb/d all year
001Chemical oxygen demand [COD]MO AVG <= 2752 lb/d all year
001Chemical oxygen demand [COD]DAILY MX <= 4394 lb/d all year
001Chemical oxygen demand [COD]DAILY MX <= 4394 lb/d all year
001Chemical oxygen demand [COD]DAILY MX <= 5443 lb/d all year
001Chemical oxygen demand [COD]DAILY MX <= 5443 lb/d all year
002Analytical ChemistryVALUE report only all year
002Analytical ChemistryVALUE report only all year
002Analytical ChemistryVALUE report only all year
002NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 4 % all year
002NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 4 % all year
002NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 7.7 % all year
002NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiaDAILY MN >= 7.7 % all year
002Noel Statre 10Day Chronic Salvel. SalmonidDAILY MN >= 7.7 % all year
002Noel Statre 10Day Chronic Salvel. SalmonidDAILY MN >= 4 % all year
002Noel Statre 10Day Chronic Salvel. SalmonidDAILY MN >= 4 % all year
002Noel Statre 10Day Chronic Salvel. SalmonidDAILY MN >= 7.7 % all year
002NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only all year
002NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 11 % all year
002NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN >= 11 % all year
002NOAEL Static 48Hr Acute Ceriodaphnia dubiaDAILY MN report only all year
002NOAEL Static 48Hr Acute Salvel. SalmonidDAILY MN report only all year
002NOAEL Static 48Hr Acute Salvel. SalmonidDAILY MN report only all year
002NOAEL Static 48Hr Acute Salvel. SalmonidDAILY MN report only all year
002NOAEL Static 48Hr Acute Salvel. SalmonidDAILY MN report only all year
MW1Temperature, water deg. centigradeDAILY MX report only May
MW1Specific conductanceDAILY MX report only May
MW1pHDAILY MX report only May
MW1Solids, total suspendedDAILY MX report only May
MW1Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May
MW1Depth to water level ft below landsurfaceDAILY MX report only May
MW4Temperature, water deg. centigradeDAILY MX report only May
MW4Specific conductanceDAILY MX report only May
MW4pHDAILY MX report only May
MW4Solids, total suspendedDAILY MX report only May
MW4Nitrogen, nitrate total [as N]DAILY MX <= 10 mg/L May
MW4Depth to water level ft below landsurfaceDAILY MX report only May

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