CheckPFAS

ZIP Code 01527

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 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
2
Above EPA Limits
2
Water Systems
395%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 395% of limit
Detected: 15.80 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 155% of limit
Detected: 6.20 ppt
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AQUARION WATER COMPANY, MILLBURY

MA2186000 High Risk
Water Type
Surface Water
PFAS Detected
7
Above MCL
2
State
Massachusetts
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
15.80ppt
395% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
6.20ppt
155% of limit
4 ppt⚠ Exceeds MCL
PFBA
Perfluorobutanoic acid
15.90pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
10.30pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
8.60pptNo federal limit—Unregulated
PFHpA
Perfluoroheptanoic acid
5.80pptNo federal limit—Unregulated
PFBS
Perfluorobutane sulfonic acid
3.70pptNo federal limit—Unregulated

AQUARION WATER COMPANY OXFORD

MA2226000 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Massachusetts
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFHxA
Perfluorohexanoic acid
3.40pptNo federal limit—Unregulated
Note: ZIP code 01527 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 →