PlainWater

ABINGTON/ROCKLAND JOINT WTR. WORKS

PWS ID: MA4001000 · ROCKLAND, Massachusetts 02370

PFAS Detected

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

Population Served
33,647
Total Violations
48
Health-Based Violations
17
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
11,607
County
Plymouth
School/Daycare
No
MCL Violations
16
Monitoring Violations
3
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 5 2018
Total Haloacetic Acids (HAA5) MCL 5 2015
Coliform (TCR) MCL 4 2011
Revised Total Coliform Rule MCL 2 2025
Nitrate MR 2 1996
Surface Water Treatment Rule TT 1 2003
Nitrite MR 1 2023

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 43 of 300 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 8/28/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/28/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/28/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/28/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 8/28/2024 <9 µg/L 9 µg/L Not Detected
lithium 8/28/2024 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 8/28/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFTA 8/28/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/28/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/28/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 5/31/2024 0.0110 µg/L 0.004 µg/L Detected
PFOS 5/31/2024 0.0070 µg/L 0.004 µg/L Detected
PFNA 5/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 5/31/2024 0.0030 µg/L 0.003 µg/L Detected
PFHpA 5/31/2024 0.0050 µg/L 0.003 µg/L Detected
PFBS 5/31/2024 0.0030 µg/L 0.003 µg/L Detected
PFDA 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/31/2024 0.0190 µg/L 0.003 µg/L Detected
NFDHA 5/31/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFDoA 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
9Cl-PF3ONS 5/31/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/31/2024 0.0100 µg/L 0.005 µg/L Detected
6:2 FTS 5/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/31/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 5/31/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/31/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/31/2024 0.0110 µg/L 0.003 µg/L Detected
ADONA 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
HFPO-DA 5/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 5/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 5/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/17/2024 <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.