ZIP Code 35756
High RiskPFAS above EPA limits detected
2 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
2
Above EPA Limits
3
Water Systems
278%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 278% of limit
Detected: 11.10 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 218% of limit
Detected: 8.70 ppt
LIMESTONE COUNTY WATER SYSTEM
AL0000833 High RiskWater Type
GU
PFAS Detected
7
Above MCL
2
State
Alabama
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 11.10ppt | 278% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 8.70ppt | 218% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 6.80ppt | 68% of limit
| 10 ppt | Below limit |
PFBA Perfluorobutanoic acid | 24.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 12.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.50ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 7.20ppt | No federal limit | — | Unregulated |
MADISON WATER WORKS & SEWER
AL0000885 Low LevelWater Type
GU
PFAS Detected
2
Above MCL
0
State
Alabama
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFBA Perfluorobutanoic acid | 9.50ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.90ppt | No federal limit | — | Unregulated |
TRIANA WATER WORKS
AL0000905 Low LevelWater Type
Surface Water
PFAS Detected
2
Above MCL
0
State
Alabama
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFBA Perfluorobutanoic acid | 7.10ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 35756 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.