CheckPFAS

ZIP Code 02019

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

3 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

8
PFAS Detected
3
Above EPA Limits
2
Water Systems
145%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 125% of limit
Detected: 5.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 108% of limit
Detected: 4.30 ppt
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BELLINGHAM DPW WATER SEWER DIV.

MA2025000 High Risk
Water Type
Groundwater
PFAS Detected
3
Above MCL
2
State
Massachusetts
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
5.00ppt
125% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
4.30ppt
108% of limit
4 ppt⚠ Exceeds MCL
PFBS
Perfluorobutane sulfonic acid
4.10pptNo federal limit—Unregulated

WOONSOCKET WATER DIVISION

RI1559518 High Risk
Water Type
Surface Water
PFAS Detected
5
Above MCL
1
State
Rhode Island
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
5.80ppt
145% of limit
4 ppt⚠ Exceeds MCL
PFPeA
Perfluoropentanoic acid
7.50pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
6.70pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
5.00pptNo federal limit—Unregulated
PFHpA
Perfluoroheptanoic acid
3.70pptNo federal limit—Unregulated
Note: ZIP code 02019 is served by 2 separate water utilities. Results above show data for each system independently.

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →