PlainWater
States → Massachusetts

MEDFIELD WATER DEPT.

PWS ID: MA2175000 · MEDFIELD, Massachusetts 02052

PFAS Detected

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

Population Served
12,894
Total Violations
135
Health-Based Violations
26
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,128
County
Norfolk
School/Daycare
No
MCL Violations
26
Monitoring Violations
95
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 24 2012
Chlorine MR 5 2009
1,2,4-Trichlorobenzene MR 4 2008
cis-1,2-Dichloroethylene MR 4 2008
Xylenes, Total MR 4 2008
o-Dichlorobenzene MR 4 2008
p-Dichlorobenzene MR 4 2008
1,1-Dichloroethylene MR 4 2008
trans-1,2-Dichloroethylene MR 4 2008
1,1,1-Trichloroethane MR 4 2008
Carbon tetrachloride MR 4 2008
Trichloroethylene MR 4 2008
1,1,2-Trichloroethane MR 4 2008
CHLOROBENZENE MR 4 2008
Benzene MR 4 2008
Styrene MR 4 2008
Vinyl chloride MR 4 2008
1,2-Dichloropropane MR 4 2008
Ethylbenzene MR 4 2008
Tetrachloroethylene MR 4 2008
1,2-Dichloroethane MR 4 2008
Toluene MR 4 2008
DICHLOROMETHANE MR 4 2008
Lead and Copper Rule MR 2 1997
Consumer Confidence Rule Other 2 2009
Coliform (TCR) MR 2 2008
Revised Total Coliform Rule MCL 2 2018
Revised Total Coliform Rule MON 1 2022
Gross Alpha, Excl. Radon and U MR 1 1991

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 10 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
6:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 9/24/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 9/24/2024 <0.006 µg/L 0.006 µg/L Not Detected
4:2 FTS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/24/2024 <9 µg/L 9 µg/L Not Detected
NFDHA 9/24/2024 <0.02 µg/L 0.02 µg/L Not Detected
NEtFOSAA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/24/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/24/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/24/2024 <9 µg/L 9 µg/L Not Detected
PFNA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 9/24/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFOS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 9/24/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFEESA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/24/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFOA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/24/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/24/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/24/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 9/24/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/24/2024 <0.003 µg/L 0.003 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.