CheckPFAS

ZIP Code 37012

High Risk
High Risk PFAS Risk Level

PFAS 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.

6
PFAS Detected
1
Above EPA Limits
2
Water Systems
163%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 163% of limit
Detected: 6.50 ppt
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SMITH UTILITY DISTRICT

TN0000636 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Tennessee
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBS
Perfluorobutane sulfonic acid
4.00pptNo federal limit—Unregulated

WILSON CO WATER & WASTEWATER

TN0000790 High Risk
Water Type
Surface Water
PFAS Detected
5
Above MCL
1
State
Tennessee
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
6.50ppt
163% of limit
4 ppt⚠ Exceeds MCL
PFHxA
Perfluorohexanoic acid
17.10pptNo federal limit—Unregulated
PFBS
Perfluorobutane sulfonic acid
16.90pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
9.40pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
8.60pptNo federal limit—Unregulated
Note: ZIP code 37012 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 →