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States → Massachusetts

MANCHESTER BY THE SEA DPW

PWS ID: MA3166000 · MANCHESTER BY THE SEA, Massachusetts 01944

PFAS Detected

6 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
5,170
Total Violations
94
Health-Based Violations
11
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,625
County
Essex
School/Daycare
No
MCL Violations
3
Monitoring Violations
63
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 9 2020
Lead and Copper Rule TT 6 1994
Consumer Confidence Rule Other 4 2014
Coliform (TCR) MCL 3 1997
Surface Water Treatment Rule TT 2 1992
Pentachlorophenol MR 1 2007
Toxaphene MR 1 2007
2,4,5-TP MR 1 2007
BHC-GAMMA MR 1 2007
Dalapon MR 1 2007
Di(2-ethylhexyl) phthalate MR 1 2007
Dinoseb MR 1 2007
Diquat MR 1 2007
Glyphosate MR 1 2007
HEXACHLOROBENZENE MR 1 2007
Hexachlorocyclopentadiene MR 1 2007
OXAMYL MR 1 2007
Picloram MR 1 2007
Atrazine MR 1 2007
Simazine MR 1 2007
2,3,7,8-TCDD MR 1 2007
Carbofuran MR 1 2007
Benzene MR 1 2008
1,1-Dichloroethylene MR 1 2008
1,2-Dichloroethane MR 1 2008
1,1,1-Trichloroethane MR 1 2008
Vinyl chloride MR 1 2008
trans-1,2-Dichloroethylene MR 1 2008
cis-1,2-Dichloroethylene MR 1 2008
1,2-Dichloropropane MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 14 of 151 samples detected PFAS.

Contaminant Date Result MRL Status
HFPO-DA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/13/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 8/13/2025 0.0043 µg/L 0.003 µg/L Detected
PFMBA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 8/13/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFOS 8/13/2025 0.0048 µg/L 0.004 µg/L Detected
PFHpA 8/13/2025 0.0040 µg/L 0.003 µg/L Detected
PFBS 8/13/2025 0.0050 µg/L 0.003 µg/L Detected
PFHpS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/13/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/13/2025 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/13/2025 <9 µg/L 9 µg/L Not Detected
PFDA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 8/13/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 8/13/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 8/13/2025 0.0120 µg/L 0.004 µg/L Detected
PFDoA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/13/2025 0.0050 µg/L 0.003 µg/L Detected
PFUnA 8/13/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/13/2025 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 8/13/2025 <0.006 µg/L 0.006 µg/L Not Detected
HFPO-DA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/13/2025 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/13/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/13/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/13/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
11Cl-PF3OUdS 8/13/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 8/13/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/13/2025 <9 µg/L 9 µg/L Not Detected
PFTrDA 8/13/2025 <0.007 µg/L 0.007 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.