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East Fitchburg W W T F

Sewage treatment plant, major discharger, Fitchburg, Massachusetts. NPDES permit MA0100986, in force until Jun 30, 2029. Last 12 months: over a limit 80 times (last September 2026), 8 of 141 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 004 form A monthly (3 values), outfall 010 form A monthly (3 values), outfall 032 form A monthly (3 values), outfall 041 form A monthly (3 values), outfall 045 form A monthly (3 values), outfall 045 form B monthly (3 values), and 10 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
60 values over a limit, 0 required values missing, 11 of 143 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 80 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, 5-day, 20 deg. C, daily maximum2836 lb/d≤ 1550 lb/d83%
October 2025BOD, 5-day, 20 deg. C, daily maximum40 mg/L≤ 15 mg/L167%
October 2025BOD, 5-day, 20 deg. C, monthly average13 mg/L≤ 8 mg/L63%
October 2025Nitrogen, ammonia total [as N], daily maximum11.3 mg/L≤ 2 mg/L465%
October 2025Nitrogen, ammonia total [as N], monthly average2.03 mg/L≤ 1 mg/L103%
October 2025Nitrogen, ammonia total [as N], weekly average4.03 mg/L≤ 1 mg/L303%
October 2025Phosphorus, total [as P], rolling average.8 mg/L≤ .5 mg/L60%
October 2025Solids, total suspended, daily maximum3828 lb/d≤ 2070 lb/d85%
October 2025Solids, total suspended, daily maximum54 mg/L≤ 20 mg/L170%
October 2025Solids, total suspended, monthly average13 mg/L≤ 10 mg/L30%
November 2025Phosphorus, total [as P], monthly average1.31 mg/L≤ 1 mg/L31%
November 2025pH, minimum6.4 SU≥ 6.5 SU—
December 2025BOD, 5-day, 20 deg. C, daily maximum40 mg/L≤ 35 mg/L14%
December 2025Phosphorus, total [as P], monthly average1.41 mg/L≤ 1 mg/L41%
February 2026E. coli, daily maximum2420 CFU/100mL≤ 409 CFU/100mL492%
March 2026BOD, 5-day, 20 deg. C, daily maximum46 mg/L≤ 35 mg/L31%
March 2026BOD, 5-day, 20 deg. C, daily maximum4642 lb/d≤ 3620 lb/d28%
March 2026E. coli, daily maximum> 2420 CFU/100mL≤ 409 CFU/100mL—
April 2026Nitrogen, ammonia total [as N], monthly average22.21 mg/L≤ 3.4 mg/L553%
April 2026Phosphorus, total [as P], rolling average.82 mg/L≤ .5 mg/L64%
May 2026BOD, 5-day, 20 deg. C, daily maximum1573 lb/d≤ 1550 lb/d1%
May 2026BOD, 5-day, 20 deg. C, daily maximum41 mg/L≤ 15 mg/L173%
May 2026BOD, 5-day, 20 deg. C, monthly average15 mg/L≤ 8 mg/L88%
May 2026BOD, 5-day, 20 deg. C, weekly average15 mg/L≤ 12 mg/L25%
May 2026Nitrogen, ammonia total [as N], daily maximum25.1 mg/L≤ 8 mg/L214%
May 2026Nitrogen, ammonia total [as N], monthly average14.12 mg/L≤ 3.4 mg/L315%
May 2026Nitrogen, ammonia total [as N], weekly average15.38 mg/L≤ 5 mg/L208%
May 2026Phosphorus, total [as P], rolling average.81 mg/L≤ .5 mg/L62%
May 2026Solids, total suspended, daily maximum3491 lb/d≤ 2070 lb/d69%
May 2026Solids, total suspended, daily maximum46 mg/L≤ 20 mg/L130%
May 2026Solids, total suspended, monthly average13 mg/L≤ 10 mg/L30%
June 2026BOD, 5-day, 20 deg. C, daily maximum31 mg/L≤ 15 mg/L107%
June 2026BOD, 5-day, 20 deg. C, monthly average13 mg/L≤ 8 mg/L63%
June 2026BOD, 5-day, 20 deg. C, weekly average13 mg/L≤ 12 mg/L8%
June 2026E. coli, daily maximum690 CFU/100mL≤ 409 CFU/100mL69%
June 2026Nitrogen, ammonia total [as N], daily maximum10.9 mg/L≤ 2 mg/L445%
June 2026Nitrogen, ammonia total [as N], monthly average3.35 mg/L≤ 1 mg/L235%
June 2026Nitrogen, ammonia total [as N], weekly average3.34 mg/L≤ 1 mg/L234%
June 2026Phosphorus, total [as P], rolling average.83 mg/L≤ .5 mg/L66%
June 2026Solids, total suspended, daily maximum27 mg/L≤ 20 mg/L35%
June 2026Solids, total suspended, monthly average15 mg/L≤ 10 mg/L50%
July 2026BOD, 5-day, 20 deg. C, daily maximum26 mg/L≤ 15 mg/L73%
July 2026BOD, 5-day, 20 deg. C, daily maximum5404 lb/d≤ 1550 lb/d249%
July 2026BOD, 5-day, 20 deg. C, monthly average16 mg/L≤ 8 mg/L100%
July 2026BOD, 5-day, 20 deg. C, weekly average16 mg/L≤ 12 mg/L33%
July 2026E. coli, daily maximum2420 CFU/100mL≤ 409 CFU/100mL492%
July 2026Nitrogen, ammonia total [as N], daily maximum8.96 mg/L≤ 2 mg/L348%
July 2026Nitrogen, ammonia total [as N], monthly average1.99 mg/L≤ 1 mg/L99%
July 2026Nitrogen, ammonia total [as N], weekly average1.47 mg/L≤ 1 mg/L47%
July 2026Phosphorus, total [as P], rolling average.79 mg/L≤ .5 mg/L58%
July 2026Solids, total suspended, daily maximum200 mg/L≤ 20 mg/L900%
July 2026Solids, total suspended, daily maximum27002 lb/d≤ 2070 lb/d1204%
July 2026Solids, total suspended, monthly average1582 lb/d≤ 1030 lb/d54%
July 2026Solids, total suspended, monthly average26 mg/L≤ 10 mg/L160%
July 2026Solids, total suspended, weekly average1552 lb/d≤ 1550 lb/d0%
July 2026Solids, total suspended, weekly average25 mg/L≤ 15 mg/L67%
August 2026BOD, 5-day, 20 deg. C, daily maximum41 mg/L≤ 15 mg/L173%
August 2026BOD, 5-day, 20 deg. C, daily maximum6839 lb/d≤ 1550 lb/d341%
August 2026BOD, 5-day, 20 deg. C, monthly average10 mg/L≤ 8 mg/L25%
August 2026E. coli, daily maximum2420 CFU/100mL≤ 409 CFU/100mL492%
August 2026Nitrogen, ammonia total [as N], daily maximum19.4 mg/L≤ 2 mg/L870%
August 2026Nitrogen, ammonia total [as N], monthly average2.2 mg/L≤ 1 mg/L120%
August 2026Nitrogen, ammonia total [as N], weekly average2.52 mg/L≤ 1 mg/L152%
August 2026Phosphorus, total [as P], rolling average.56 mg/L≤ .5 mg/L12%
August 2026Solids, total suspended, daily maximum15179 lb/d≤ 2070 lb/d633%
August 2026Solids, total suspended, daily maximum91 mg/L≤ 20 mg/L355%
August 2026Solids, total suspended, monthly average1165 lb/d≤ 1030 lb/d13%
August 2026Solids, total suspended, monthly average17 mg/L≤ 10 mg/L70%
August 2026Solids, total suspended, weekly average17 mg/L≤ 15 mg/L13%
September 2026BOD, 5-day, 20 deg. C, daily maximum2667 lb/d≤ 1550 lb/d72%
September 2026BOD, 5-day, 20 deg. C, daily maximum41 mg/L≤ 15 mg/L173%
September 2026BOD, 5-day, 20 deg. C, weekly average1503 lb/d≤ 1240 lb/d21%
September 2026E. coli, daily maximum2420 CFU/100mL≤ 409 CFU/100mL492%
September 2026NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas, monthly average minimum< 62 %≥ 62 %—
September 2026Nitrogen, ammonia total [as N], daily maximum2.06 mg/L≤ 2 mg/L3%
September 2026Phosphorus, total [as P], rolling average.8 mg/L≤ .5 mg/L60%
September 2026Solids, total suspended, daily maximum29 mg/L≤ 20 mg/L45%
September 2026Solids, total suspended, daily maximum7676 lb/d≤ 2070 lb/d271%
September 2026Solids, total suspended, monthly average17 mg/L≤ 10 mg/L70%
September 2026Solids, total suspended, weekly average16.5 mg/L≤ 15 mg/L10%

Limits in force (248)

ParameterStatisticLimitMonthsOutfall
Durationmonthly totalreport only (hr/mo)all year004
Number of Eventsmonthly totalreport only (#)all year004
Flow, totalmonthly totalreport only (gal/d)all year004
Durationmonthly totalreport only (hr/mo)all year010
Number of Eventsmonthly totalreport only (#)all year010
Flow, totalmonthly totalreport only (gal/d)all year010
Durationmonthly totalreport only (hr/mo)all year032
Number of Eventsmonthly totalreport only (#)all year032
Flow, totalmonthly totalreport only (gal/d)all year032
Durationmonthly totalreport only (hr/mo)all year041
Number of Eventsmonthly totalreport only (#)all year041
Flow, totalmonthly totalreport only (gal/d)all year041
Durationmonthly totalreport only (hr/mo)all year045
Durationmonthly totalreport only (hr/mo)all year045
Number of Eventsmonthly totalreport only (#)all year045
Number of Eventsmonthly totalreport only (#)all year045
Flow, totalmonthly totalreport only (gal/d)all year045
Flow, totalmonthly totalreport only (gal/d)all year045
Oxygen, dissolved [DO]daily minimum≥ 5 mg/LMay–Oct063
BOD, 5-day, 20 deg. Cmonthly average≤ 8 mg/LMay–Oct063
BOD, 5-day, 20 deg. Cmonthly average≤ 20 mg/LJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cweekly average≤ 12 mg/LMay–Oct063
BOD, 5-day, 20 deg. Cweekly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cdaily maximum≤ 15 mg/LMay–Oct063
BOD, 5-day, 20 deg. Cdaily maximum≤ 35 mg/LJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cmonthly average≤ 830 lb/dMay–Oct063
BOD, 5-day, 20 deg. Cmonthly average≤ 2070 lb/dJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cdaily maximum≤ 1550 lb/dMay–Oct063
BOD, 5-day, 20 deg. Cdaily maximum≤ 3620 lb/dJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cweekly average≤ 1240 lb/dMay–Oct063
BOD, 5-day, 20 deg. Cweekly average≤ 3100 lb/dJan, Feb, Mar, Apr, Nov, Dec063
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year063
pHminimum≥ 6.5 SUall year063
pHmaximum≤ 8.3 SUall year063
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendedmonthly average≤ 10 mg/LMay–Oct063
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendedweekly average≤ 15 mg/LMay–Oct063
Solids, total suspendeddaily maximum≤ 50 mg/LJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendeddaily maximum≤ 20 mg/LMay–Oct063
Solids, total suspendedmonthly average≤ 3100 lb/dJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendedmonthly average≤ 1030 lb/dMay–Oct063
Solids, total suspendeddaily maximum≤ 5170 lb/dJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendeddaily maximum≤ 2070 lb/dMay–Oct063
Solids, total suspendedweekly average≤ 1550 lb/dMay–Oct063
Solids, total suspendedweekly average≤ 4650 lb/dJan, Feb, Mar, Apr, Nov, Dec063
Solids, total suspendedmonthly averagereport only (mg/L)all year063
Nitrogen, total [as N]monthly averagereport only (mg/L)all year063
Nitrogen, total [as N]daily maximumreport only (mg/L)all year063
Nitrogen, total [as N]monthly averagereport only (lb/d)all year063
Nitrogen, ammonia total [as N]monthly average≤ 1 mg/LJun–Oct063
Nitrogen, ammonia total [as N]monthly average≤ 3.4 mg/LMay063
Nitrogen, ammonia total [as N]monthly average≤ 3.4 mg/LApr063
Nitrogen, ammonia total [as N]weekly average≤ 1 mg/LJun–Oct063
Nitrogen, ammonia total [as N]weekly average≤ 5 mg/LMay063
Nitrogen, ammonia total [as N]daily maximum≤ 2 mg/LJun–Oct063
Nitrogen, ammonia total [as N]daily maximum≤ 8 mg/LMay063
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Apr063
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year063
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Apr–Oct063
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Nov, Dec063
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Apr–Oct063
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Apr–Oct063
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Nov, Dec063
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Apr–Oct063
Phosphorus, total [as P]monthly average≤ .2 mg/LApr–Oct063
Phosphorus, total [as P]monthly average≤ 1 mg/LJan, Feb, Mar, Nov, Dec063
Phosphorus, total [as P]rolling average≤ .5 mg/LApr–Oct063
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct063
Phosphorus, total [as P]daily maximumreport only (mg/L)Jan, Feb, Mar, Nov, Dec063
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct063
Phosphorus, total [as P]monthly averagereport only (lb/d)Apr–Oct063
Phosphorus, total [as P]daily maximumreport only (lb/d)Apr–Oct063
Phosphorus, total [as P]daily maximumreport only (mg/L)Apr–Oct063
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year063
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year063
Cadmium, total [as Cd]monthly average≤ .3 ug/Lall year063
Cadmium, total [as Cd]daily maximum≤ 2 ug/Lall year063
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year063
Copper, total [as Cu]monthly average≤ 27 ug/Lall year063
Copper, total [as Cu]daily maximum≤ 39 ug/Lall year063
Copper, total [as Cu]daily maximumreport only (mg/L)all year063
Lead, total [as Pb]monthly average≤ 3 ug/Lall year063
Lead, total [as Pb]daily maximum≤ 62 ug/Lall year063
Lead, total [as Pb]daily maximumreport only (mg/L)all year063
Nickel, total [as Ni]daily maximumreport only (mg/L)all year063
Zinc, total [as Zn]monthly average≤ 117 ug/Lall year063
Zinc, total [as Zn]daily maximum≤ 117 ug/Lall year063
Zinc, total [as Zn]daily maximumreport only (mg/L)all year063
Aluminum, total [as Al]monthly average≤ 139 ug/Lall year063
Aluminum, total [as Al]daily maximumreport only (ug/L)all year063
Aluminum, total [as Al]daily maximumreport only (mg/L)all year063
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year063
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year063
Flow, in conduit or thru treatment plantrolling average≤ 12.4 MGDall year063
Chlorine, total residualmonthly average≤ 18 ug/Lall year063
Chlorine, total residualdaily maximum≤ 30 ug/Lall year063
E. colimonthly geometric mean≤ 126 CFU/100mLall year063
E. colidaily maximum≤ 409 CFU/100mLall year063
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year063
Solids, suspended percent removalmonthly average minimum≥ 85 %all year063
NOEC Static Renewal 7Day Chronic Ceriodaphnia dubiamonthly average minimum≥ 62 %all year063
LC50 Static 48Hr Acute Ceriodaphnia dubiamonthly average minimum≥ 100 %all year063
LC50 Static Renewal 48Hr Acute Pimephales promelasmonthly average minimum≥ 100 %all year063
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimum≥ 62 %all year063
Temperature, water deg. centigradedaily maximumreport only (deg C)all year063T
pHdaily maximumreport only (SU)all year063T
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year063T
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year063T
Carbon, dissolved organic [as C]daily maximumreport only (mg/L)all year063T
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year063T
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year063T
Copper, total [as Cu]daily maximumreport only (mg/L)all year063T
Lead, total [as Pb]daily maximumreport only (mg/L)all year063T
Nickel, total [as Ni]daily maximumreport only (mg/L)all year063T
Zinc, total [as Zn]daily maximumreport only (mg/L)all year063T
Aluminum, total [as Al]daily maximumreport only (mg/L)all year063T
Durationmonthly totalreport only (hr/mo)all year064
Number of Eventsmonthly totalreport only (#)all year064
Flow, totalmonthly totalreport only (gal/d)all year064
Durationmonthly totalreport only (hr/mo)all year076
Number of Eventsmonthly totalreport only (#)all year076
Flow, totalmonthly totalreport only (gal/d)all year076
Durationmonthly totalreport only (hr/mo)all year083
Number of Eventsmonthly totalreport only (#)all year083
Flow, totalmonthly totalreport only (gal/d)all year083
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanoic acid (PFOA)daily maximumreport only (ng/g)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanoic acid (PFBA)daily maximumreport only (ng/g)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonamide (PFOSA)daily maximumreport only (ng/g)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanoic acid (PFPeA)daily maximumreport only (ng/g)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanoic acid (PFHxA)daily maximumreport only (ng/g)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanoic acid (PFHpA)daily maximumreport only (ng/g)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanoic acid (PFNA)daily maximumreport only (ng/g)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanoic acid (PFDA)daily maximumreport only (ng/g)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/L)all yearPFAS
Perfluoroundecanoic acid (PFUnA)daily maximumreport only (ng/g)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanoic acid (PFDoA)daily maximumreport only (ng/g)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotridecanoic acid (PFTrDA)daily maximumreport only (ng/g)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/L)all yearPFAS
Perfluorotetradecanoic acid (PFTeDA)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoethanol (NEtFOSE)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoethanol (NMeFOSE)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)daily maximumreport only (ng/g)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/L)all yearPFAS
Perfluorobutanesulfonic acid (PFBS)daily maximumreport only (ng/g)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/L)all yearPFAS
Perfluorodecanesulfonic acid (PFDS)daily maximumreport only (ng/g)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/L)all yearPFAS
Perfluoroheptanesulfonic acid (PFHpS)daily maximumreport only (ng/g)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/L)all yearPFAS
Perfluorohexanesulfonic acid (PFHxS)daily maximumreport only (ng/g)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/L)all yearPFAS
Perfluorooctanesulfonic acid (PFOS)daily maximumreport only (ng/g)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorohexane sulfonic acid (4:2 FTS)daily maximumreport only (ng/g)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H,2H,2H-Perfluorooctane sulfonic acid (6:2 FTS)daily maximumreport only (ng/g)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/L)all yearPFAS
1H,1H, 2H, 2H-Perfluorodecane sulfonic acid (8:2 FTS)daily maximumreport only (ng/g)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/L)all yearPFAS
Perfluoropentanesulfonic acid (PFPeS)daily maximumreport only (ng/g)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/L)all yearPFAS
Perfluorononanesulfonic acid (PFNS)daily maximumreport only (ng/g)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/L)all yearPFAS
Hexafluoropropylene oxide dimer acid (HFPO-DA)daily maximumreport only (ng/g)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/L)all yearPFAS
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro(2-ethoxyethane)sulfonic acid (PFEESA)daily maximumreport only (ng/g)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/L)all yearPFAS
Perfluorododecanesulfonic acid (PFDoS)daily maximumreport only (ng/g)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/L)all yearPFAS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)daily maximumreport only (ng/g)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/L)all yearPFAS
N-methyl perfluorooctanesulfonamide (NMeFOSA)daily maximumreport only (ng/g)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/L)all yearPFAS
N-ethyl perfluorooctanesulfonamide (NEtFOSA)daily maximumreport only (ng/g)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoropropyl propanoic acid (3:3 FTCA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-3-methoxypropanoic acid (PFMPA)daily maximumreport only (ng/g)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/L)all yearPFAS
9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9Cl-PF3ONS)daily maximumreport only (ng/g)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/L)all yearPFAS
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)daily maximumreport only (ng/g)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
3-Perfluoroheptyl propanoic acid (7:3 FTCA)daily maximumreport only (ng/g)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/L)all yearPFAS
Perfluoro-4-methoxybutanoic acid (PFMBA)daily maximumreport only (ng/g)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/L)all yearPFAS
2H,2H,3H,3H-Perfluorooctanoic acid (5:3 FTCA)daily maximumreport only (ng/g)all yearPFAS
Fluorine, adsorbable organicdaily maximumreport only (ng/L)all yearPFAS
Fluorine, adsorbable organicdaily maximumreport only (ng/L)all yearPFAS

How strict are these limits?

Cited limits by parameter: Massachusetts's rules and the federal ones.

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