EAST FITCHBURG W W T F

NPDES permit MA0100986 · Major POTW · effective, expires 2029-06-30 · 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.

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

80values over a limit
0required values missing, on 0 form(s)
19of 133 forms filed late

Last period with anything received: 2026-08-31. Most often over: BOD, 5-day, 20 deg. C (24), Solids, total suspended (23), Nitrogen, ammonia total [as N] (17).

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 (248)

OutfallParameterStatisticLimitMonths
004DurationMO TOTAL report only all year
004Number of EventsMO TOTAL report only all year
004Flow, totalMO TOTAL report only all year
010DurationMO TOTAL report only all year
010Number of EventsMO TOTAL report only all year
010Flow, totalMO TOTAL report only all year
032DurationMO TOTAL report only all year
032Number of EventsMO TOTAL report only all year
032Flow, totalMO TOTAL report only all year
041DurationMO TOTAL report only all year
041Number of EventsMO TOTAL report only all year
041Flow, totalMO TOTAL report only all year
045DurationMO TOTAL report only all year
045DurationMO TOTAL report only all year
045Number of EventsMO TOTAL report only all year
045Number of EventsMO TOTAL report only all year
045Flow, totalMO TOTAL report only all year
045Flow, totalMO TOTAL report only all year
063Oxygen, dissolved [DO]DAILY MN >= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CMO AVG <= 8 mg/L May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CMO AVG <= 20 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CWKLY AVG <= 12 mg/L May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CWKLY AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CDAILY MX <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CDAILY MX <= 35 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CMO AVG <= 830 lb/d May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CMO AVG <= 2070 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CDAILY MX <= 1550 lb/d May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CDAILY MX <= 3620 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CWKLY AVG <= 1240 lb/d May, Jun, Jul, Aug, Sep, Oct
063BOD, 5-day, 20 deg. CWKLY AVG <= 3100 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063BOD, 5-day, 20 deg. CMO AVG report only all year
063pHMINIMUM >= 6.5 SU all year
063pHMAXIMUM <= 8.3 SU all year
063Solids, total suspendedMO AVG <= 30 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedMO AVG <= 10 mg/L May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedWKLY AVG <= 45 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedWKLY AVG <= 15 mg/L May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedDAILY MX <= 50 mg/L Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedDAILY MX <= 20 mg/L May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedMO AVG <= 3100 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedMO AVG <= 1030 lb/d May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedDAILY MX <= 5170 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedDAILY MX <= 2070 lb/d May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedWKLY AVG <= 1550 lb/d May, Jun, Jul, Aug, Sep, Oct
063Solids, total suspendedWKLY AVG <= 4650 lb/d Jan, Feb, Mar, Apr, Nov, Dec
063Solids, total suspendedMO AVG report only all year
063Nitrogen, total [as N]MO AVG report only all year
063Nitrogen, total [as N]DAILY MX report only all year
063Nitrogen, total [as N]MO AVG report only all year
063Nitrogen, ammonia total [as N]MO AVG <= 1 mg/L Jun, Jul, Aug, Sep, Oct
063Nitrogen, ammonia total [as N]MO AVG <= 3.4 mg/L May
063Nitrogen, ammonia total [as N]MO AVG <= 3.4 mg/L Apr
063Nitrogen, ammonia total [as N]WKLY AVG <= 1 mg/L Jun, Jul, Aug, Sep, Oct
063Nitrogen, ammonia total [as N]WKLY AVG <= 5 mg/L May
063Nitrogen, ammonia total [as N]DAILY MX <= 2 mg/L Jun, Jul, Aug, Sep, Oct
063Nitrogen, ammonia total [as N]DAILY MX <= 8 mg/L May
063Nitrogen, ammonia total [as N]DAILY MX report only Apr
063Nitrogen, ammonia total [as N]DAILY MX report only all year
063Nitrogen, Kjeldahl, total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Nitrogen, Kjeldahl, total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
063Nitrogen, Kjeldahl, total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Nitrite + Nitrate total [as N]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Nitrite + Nitrate total [as N]MO AVG report only Jan, Feb, Mar, Nov, Dec
063Nitrite + Nitrate total [as N]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]MO AVG <= .2 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]MO AVG <= 1 mg/L Jan, Feb, Mar, Nov, Dec
063Phosphorus, total [as P]ROLL AVG <= .5 mg/L Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]DAILY MX report only Jan, Feb, Mar, Nov, Dec
063Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]MO AVG report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Phosphorus, total [as P]DAILY MX report only Apr, May, Jun, Jul, Aug, Sep, Oct
063Carbon, tot organic [TOC]DAILY MX report only all year
063Hardness, total [as CaCO3]DAILY MX report only all year
063Cadmium, total [as Cd]MO AVG <= .3 ug/L all year
063Cadmium, total [as Cd]DAILY MX <= 2 ug/L all year
063Cadmium, total [as Cd]DAILY MX report only all year
063Copper, total [as Cu]MO AVG <= 27 ug/L all year
063Copper, total [as Cu]DAILY MX <= 39 ug/L all year
063Copper, total [as Cu]DAILY MX report only all year
063Lead, total [as Pb]MO AVG <= 3 ug/L all year
063Lead, total [as Pb]DAILY MX <= 62 ug/L all year
063Lead, total [as Pb]DAILY MX report only all year
063Nickel, total [as Ni]DAILY MX report only all year
063Zinc, total [as Zn]MO AVG <= 117 ug/L all year
063Zinc, total [as Zn]DAILY MX <= 117 ug/L all year
063Zinc, total [as Zn]DAILY MX report only all year
063Aluminum, total [as Al]MO AVG <= 139 ug/L all year
063Aluminum, total [as Al]DAILY MX report only all year
063Aluminum, total [as Al]DAILY MX report only all year
063Flow, in conduit or thru treatment plantMO AVG report only all year
063Flow, in conduit or thru treatment plantDAILY MX report only all year
063Flow, in conduit or thru treatment plantROLL AVG <= 12.4 MGD all year
063Chlorine, total residualMO AVG <= 18 ug/L all year
063Chlorine, total residualDAILY MX <= 30 ug/L all year
063E. coliMO GEO <= 126 CFU/100mL all year
063E. coliDAILY MX <= 409 CFU/100mL all year
063BOD, 5-day, percent removalMO AV MN >= 85 % all year
063Solids, suspended percent removalMO AV MN >= 85 % all year
063NOEC Static Renewal 7Day Chronic Ceriodaphnia dubiaMO AV MN >= 62 % all year
063LC50 Static 48Hr Acute Ceriodaphnia dubiaMO AV MN >= 100 % all year
063LC50 Static Renewal 48Hr Acute Pimephales promelasMO AV MN >= 100 % all year
063NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN >= 62 % all year
063TTemperature, water deg. centigradeDAILY MX report only all year
063TpHDAILY MX report only all year
063TNitrogen, ammonia total [as N]DAILY MX report only all year
063TCarbon, tot organic [TOC]DAILY MX report only all year
063TCarbon, dissolved organic [as C]DAILY MX report only all year
063THardness, total [as CaCO3]DAILY MX report only all year
063TCadmium, total [as Cd]DAILY MX report only all year
063TCopper, total [as Cu]DAILY MX report only all year
063TLead, total [as Pb]DAILY MX report only all year
063TNickel, total [as Ni]DAILY MX report only all year
063TZinc, total [as Zn]DAILY MX report only all year
063TAluminum, total [as Al]DAILY MX report only all year
064DurationMO TOTAL report only all year
064Number of EventsMO TOTAL report only all year
064Flow, totalMO TOTAL report only all year
076DurationMO TOTAL report only all year
076Number of EventsMO TOTAL report only all year
076Flow, totalMO TOTAL report only all year
083DurationMO TOTAL report only all year
083Number of EventsMO TOTAL report only all year
083Flow, totalMO 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
PFASPerfluorobutanoic acid (PFBA)DAILY MX report only all year
PFASPerfluorobutanoic acid (PFBA)DAILY MX report only all year
PFASPerfluorobutanoic acid (PFBA)DAILY MX report only all year
PFASPerfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
PFASPerfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
PFASPerfluorooctanesulfonamide (PFOSA)DAILY MX report only all year
PFASPerfluoropentanoic acid (PFPeA)DAILY MX report only all year
PFASPerfluoropentanoic acid (PFPeA)DAILY MX report only all year
PFASPerfluoropentanoic acid (PFPeA)DAILY MX report only all year
PFASPerfluorohexanoic acid (PFHxA)DAILY MX report only all year
PFASPerfluorohexanoic acid (PFHxA)DAILY MX report only all year
PFASPerfluorohexanoic acid (PFHxA)DAILY 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
PFASPerfluorononanoic acid (PFNA)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
PFASPerfluoroundecanoic acid (PFUnA)DAILY MX report only all year
PFASPerfluoroundecanoic acid (PFUnA)DAILY MX report only all year
PFASPerfluoroundecanoic acid (PFUnA)DAILY MX report only all year
PFASPerfluorododecanoic acid (PFDoA)DAILY MX report only all year
PFASPerfluorododecanoic acid (PFDoA)DAILY MX report only all year
PFASPerfluorododecanoic acid (PFDoA)DAILY MX report only all year
PFASPerfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
PFASPerfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
PFASPerfluorotridecanoic acid (PFTrDA)DAILY MX report only all year
PFASPerfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
PFASPerfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
PFASPerfluorotetradecanoic acid (PFTeDA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)DAILY MX report only all year
PFASPerfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
PFASPerfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
PFASPerfluorobutanesulfonic acid (PFBS)DAILY MX report only all year
PFASPerfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
PFASPerfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
PFASPerfluorodecanesulfonic acid (PFDS)DAILY MX report only all year
PFASPerfluoroheptanesulfonic acid (PFHpS)DAILY MX report only all year
PFASPerfluoroheptanesulfonic acid (PFHpS)DAILY MX report only all year
PFASPerfluoroheptanesulfonic acid (PFHpS)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
PFAS1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
PFAS1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
PFAS1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)DAILY MX report only all year
PFAS1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
PFAS1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
PFAS1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)DAILY MX report only all year
PFAS1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
PFAS1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
PFAS1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)DAILY MX report only all year
PFASPerfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
PFASPerfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
PFASPerfluoropentanesulfonic acid (PFPeS)DAILY MX report only all year
PFASPerfluorononanesulfonic acid (PFNS)DAILY MX report only all year
PFASPerfluorononanesulfonic acid (PFNS)DAILY MX report only all year
PFASPerfluorononanesulfonic acid (PFNS)DAILY MX report only all year
PFASHexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
PFASHexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
PFASHexafluoropropylene oxide dimer acid (HFPO-DA)DAILY MX report only all year
PFASNonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
PFASNonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
PFASNonafluoro-3,6-dioxaheptanoic acid (NFDHA)DAILY MX report only all year
PFASPerfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
PFASPerfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
PFASPerfluoro(2-ethoxyethane)sulfonic acid (PFEESA)DAILY MX report only all year
PFASPerfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
PFASPerfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
PFASPerfluorododecanesulfonic acid (PFDoS)DAILY MX report only all year
PFAS4,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
PFAS4,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
PFAS4,8-Dioxa-3H-perfluorononanoic acid (ADONA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
PFASN-methyl perfluorooctanesulfonamide (NMeFOSA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
PFASN-ethyl perfluorooctanesulfonamide (NEtFOSA)DAILY MX report only all year
PFAS3-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
PFAS3-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
PFAS3-Perfluoropropyl propanoic acid (3:3 FTCA)DAILY MX report only all year
PFASPerfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
PFASPerfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
PFASPerfluoro-3-methoxypropanoic acid (PFMPA)DAILY MX report only all year
PFAS9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
PFAS9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
PFAS9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)DAILY MX report only all year
PFAS11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
PFAS11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
PFAS11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)DAILY MX report only all year
PFAS3-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
PFAS3-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
PFAS3-Perfluoroheptyl propanoic acid (7:3 FTCA)DAILY MX report only all year
PFASPerfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
PFASPerfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
PFASPerfluoro-4-methoxybutanoic acid (PFMBA)DAILY MX report only all year
PFAS2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year
PFAS2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year
PFAS2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)DAILY MX report only all year
PFASFluorine, adsorbable organicDAILY MX report only all year
PFASFluorine, adsorbable organicDAILY 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