CheckPFAS

ZIP Code 36541

High Risk
High Risk PFAS Risk Level

PFAS 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.

5
PFAS Detected
2
Above EPA Limits
3
Water Systems
785%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 785% of limit
Detected: 31.40 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 673% of limit
Detected: 26.90 ppt

GRAND BAY WATER WORKS BOARD

AL0000983 High Risk
Water Type
Groundwater
PFAS Detected
3
Above MCL
2
State
Alabama
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
31.40ppt
785% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
26.90ppt
673% of limit
4 ppt⚠ Exceeds MCL
PFHpA
Perfluoroheptanoic acid
4.40pptNo federal limitUnregulated

MOBILE COUNTY WATER & FIRE PRO AUTHORITY

AL0001002 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Alabama
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
13700.00pptNo federal limitUnregulated

ST. ELMO-IRVINGTON WATER AUTHORITY

AL0001031 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Alabama
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
6:2 FTS
6:2 Fluorotelomer sulfonic acid
7.40pptNo federal limitUnregulated
Note: ZIP code 36541 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.

View raw EPA data →