ZIP Code 02864
High RiskPFAS 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.
12
PFAS Detected
3
Above EPA Limits
3
Water Systems
193%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 145% of limit
Detected: 5.80 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 168% of limit
Detected: 6.70 ppt
WOONSOCKET WATER DIVISION
RI1559518 High RiskWater Type
Surface Water
PFAS Detected
5
Above MCL
1
State
Rhode Island
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 5.80ppt | 145% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFPeA Perfluoropentanoic acid | 7.50ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 6.70ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.00ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.70ppt | No federal limit | — | Unregulated |
PAWTUCKET-CITY OF
RI1592021 Low LevelWater Type
MX
PFAS Detected
1
Above MCL
0
State
Rhode Island
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 6.00ppt | No federal limit | — | Unregulated |
CUMBERLAND, TOWN OF
RI1647530 High RiskWater Type
Groundwater
PFAS Detected
6
Above MCL
2
State
Rhode Island
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 7.70ppt | 193% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 6.70ppt | 168% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFPeA Perfluoropentanoic acid | 8.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.30ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.50ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.50ppt | No federal limit | — | Unregulated |
Note: ZIP code 02864 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.