ZIP Code 38363
High RiskPFAS above EPA limits detected
4 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.
11
PFAS Detected
4
Above EPA Limits
2
Water Systems
508%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 325% of limit
Detected: 13.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 173% of limit
Detected: 6.90 ppt
PARSONS WATER DEPARTMENT
TN0000541 High RiskWater Type
Surface Water
PFAS Detected
5
Above MCL
2
State
Tennessee
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 13.00ppt | 325% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 6.90ppt | 173% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBA Perfluorobutanoic acid | 10.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 3.10ppt | No federal limit | — | Unregulated |
NORTH U.D. OF DECATUR/BENTON CO.
TN0000883 High RiskWater Type
Surface Water
PFAS Detected
6
Above MCL
2
State
Tennessee
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 20.30ppt | 508% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 11.20ppt | 280% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBA Perfluorobutanoic acid | 14.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.90ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 4.60ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 3.50ppt | No federal limit | — | Unregulated |
Note: ZIP code 38363 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.