ZIP Code 35630
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.
9
PFAS Detected
4
Above EPA Limits
2
Water Systems
425%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 240% of limit
Detected: 9.60 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 130% of limit
Detected: 5.20 ppt
CHISHOLM HEIGHTS WATER & F P AUTHORITY
AL0000777 High RiskWater Type
Surface Water
PFAS Detected
4
Above MCL
2
State
Alabama
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 9.60ppt | 240% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 5.20ppt | 130% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBA Perfluorobutanoic acid | 8.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.30ppt | No federal limit | — | Unregulated |
FLORENCE WATER-WASTEWATER DEPARTMENT
AL0000783 High RiskWater Type
Surface Water
PFAS Detected
5
Above MCL
2
State
Alabama
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 17.00ppt | 425% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 9.70ppt | 243% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFBA Perfluorobutanoic acid | 9.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.10ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 3.20ppt | No federal limit | — | Unregulated |
Note: ZIP code 35630 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.