CheckPFAS

ZIP Code 02067

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.

6
PFAS Detected
3
Above EPA Limits
1
Water System
375%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 375% of limit
Detected: 15.00 ppt
PFHxS Exceeds EPA limit
0 ppt MCL: 10 ppt 290% of limit
Detected: 29.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 203% of limit
Detected: 8.10 ppt

SHARON WATER DEPT

MA4266000 High Risk
Water Type
Groundwater
PFAS Detected
6
Above MCL
3
State
Massachusetts
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
15.00ppt
375% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
29.00ppt
290% of limit
10 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
8.10ppt
203% of limit
4 ppt⚠ Exceeds MCL
PFPeA
Perfluoropentanoic acid
7.20pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
7.10pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
4.70pptNo federal limitUnregulated

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 →