ZIP Code 01464
High RiskPFAS above EPA limits detected
1 compound 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
1
Above EPA Limits
3
Water Systems
173%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 173% of limit
Detected: 6.90 ppt
DEVENS MASSDEVELOPMENT
MA2019001 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Massachusetts
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFPeA Perfluoropentanoic acid | 11.60ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.70ppt | No federal limit | — | Unregulated |
SHIRLEY WATER DISTRICT
MA2270000 High RiskWater Type
Groundwater
PFAS Detected
5
Above MCL
1
State
Massachusetts
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 6.90ppt | 173% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxA Perfluorohexanoic acid | 7.10ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 5.20ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.00ppt | No federal limit | — | Unregulated |
MCI SHIRLEY
MA2270001 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Massachusetts
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 8.70ppt | 87% of limit
| 10 ppt | Below limit |
Note: ZIP code 01464 is served by 3 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.