ZIP Code 62236
High RiskPFAS 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.
13
PFAS Detected
1
Above EPA Limits
5
Water Systems
140%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 140% of limit
Detected: 5.60 ppt
FOUNTAIN WATER DISTRICT
IL1330020 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 81000.00ppt | No federal limit | — | Unregulated |
COLUMBIA
IL1330050 Low LevelWater Type
Surface Water
PFAS Detected
3
Above MCL
0
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 28200.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 11.50ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.40ppt | No federal limit | — | Unregulated |
DUPO
IL1630350 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
1
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 5.60ppt | 140% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 3.10ppt | 31% of limit
| 10 ppt | Below limit |
lithium | 24000.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.70ppt | No federal limit | — | Unregulated |
IL AMERICAN-EAST ST LOUIS
IL1635040 Low LevelWater Type
Surface Water
PFAS Detected
4
Above MCL
0
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 13100.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 18.10ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 4.40ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 4.20ppt | No federal limit | — | Unregulated |
CORINTH PWD
IL1995120 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFBA Perfluorobutanoic acid | 5.60ppt | No federal limit | — | Unregulated |
Note: ZIP code 62236 is served by 5 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.