ZIP Code 02881
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.
14
PFAS Detected
3
Above EPA Limits
2
Water Systems
400%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 155% of limit
Detected: 6.20 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 125% of limit
Detected: 5.00 ppt
KINGSTON WATER DISTRICT
RI1858421 High RiskWater Type
Groundwater
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 | 6.20ppt | 155% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBS Perfluorobutane sulfonic acid | 36.80ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 11.20ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 9.10ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 5.20ppt | No federal limit | — | Unregulated |
UNIVERSITY OF RHODE ISLAND
RI1858422 High RiskWater Type
Groundwater
PFAS Detected
9
Above MCL
2
State
Rhode Island
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 16.00ppt | 400% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 5.00ppt | 125% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFNA Perfluorononanoic acid | 7.00ppt | 70% of limit
| 10 ppt | Below limit |
PFHxS Perfluorohexane sulfonic acid | 4.00ppt | 40% of limit
| 10 ppt | Below limit |
lithium | 11500.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 9.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 8.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 7.00ppt | No federal limit | — | Unregulated |
Show 1 more compound detected at low levels
| PFHpAPerfluoroheptanoic acid | 6.00 ppt | No federal limit |
Note: ZIP code 02881 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.