CITY OF GLOUCESTER

NPDES permit MA0100625 · Major POTW · effective, expires 2027-08-31 · 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.

EPA's record, 2025-09-01 to 2026-08-31

37values over a limit
0required values missing, on 0 form(s)
0of 79 forms filed late

Last period with anything received: 2026-08-31. Most often over: Hydrocarbons, petroleum (11), Oil & Grease (8), Coliform, fecal general (7).

Reporting

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

Limits in force (105)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeDAILY MX report only all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 245 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CDAILY MX report only all year
001BOD, 5-day, 20 deg. CDAILY MX <= 367 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 1181 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG <= 10520 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 2717 lb/d all year
001BOD, 5-day, 20 deg. CWKLY AVG report only all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHDAILY MX report only all year
001SalinityDAILY MX report only all year
001SalinityDAILY MX report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 140 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedDAILY MX report only all year
001Solids, total suspendedDAILY MX <= 210 mg/L all year
001Solids, total suspendedMO AVG <= 1811 lb/d all year
001Solids, total suspendedMO AVG <= 6010 lb/d all year
001Solids, total suspendedDAILY MX <= 2717 lb/d all year
001Solids, total suspendedWKLY AVG report only all year
001Solids, total suspendedMO AVG report only all year
001Oil & GreaseDAILY MX <= 4.99 mg/L all year
001Oil & GreaseDAILY MX <= 25 mg/L all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]DAILY MX report only all year
001Carbon, tot organic [TOC]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
001Cadmium, total [as Cd]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
001Lead, total [as Pb]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
001Nickel, total [as Ni]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Zinc, total [as Zn]DAILY MX report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Aluminum, total [as Al]DAILY MX report only all year
001Flow, in conduit or thru treatment plantROLL AVG <= 5.15 MGD all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualMO AVG <= .48 mg/L all year
001Chlorine, total residualWKLY AVG <= .83 mg/L all year
001EnterococciMO GEO <= 35 MPN/100mL all year
001EnterococciMO GEO report only all year
001EnterococciDAILY MX <= 130 MPN/100mL all year
001EnterococciDAILY MX report only all year
001Coliform, fecal generalMO GEO <= 14 MPN/100mL all year
001Coliform, fecal generalMO GEO <= 200 MPN/100mL all year
001Coliform, fecal generalDAILY MX <= 28 MPN/100mL all year
001Coliform, fecal generalDAILY MX <= 400 MPN/100mL all year
001BOD, 5-day, percent removalMO AV MN >= 85 % all year
001BOD, 5-day, percent removalMO AV MN report only all year
001Solids, suspended percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN report only all year
001Hydrocarbons, petroleumDAILY MX <= 4.99 mg/L all year
001LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)MO AV MN >= 100 % all year
001LC50 Static 48Hr Acute MenidiaMO AV MN >= 100 % all year
002Flow rateMO TOTAL report only all year
002DurationMO TOTAL report only all year
002Number of EventsMO TOTAL report only all year
004Flow rateMO TOTAL report only all year
004DurationMO TOTAL report only all year
004Number of EventsMO TOTAL report only all year
005Flow rateMO TOTAL report only all year
005DurationMO TOTAL report only all year
005Number of EventsMO TOTAL report only all year
006AFlow rateMO TOTAL report only all year
006ADurationMO TOTAL report only all year
006ANumber of EventsMO TOTAL report only all year
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluorooctanoic acid (PFOA)DAILY MX report only all year
PFASPerfluorooctanesulfonateDAILY MX report only all year
PFASPerfluorooctanesulfonateDAILY MX report only all year
PFASPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
PFASPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
PFASPerfluoroheptanoic acid (PFHpA)DAILY MX report only all year
PFASPerfluorononanoic acid (PFNA)DAILY MX report only all year
PFASPerfluorodecanoic acid (PFDA)DAILY MX report only all year
PFASPerfluorodecanoic acid (PFDA)DAILY MX report only all year
PFASPerfluorodecanoic acid (PFDA)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorohexanesulfonic acid (PFHxS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)DAILY MX report only all year
PFASPerfluorooctanesulfonic acid (PFOS)DAILY 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