ZIP Code 60050
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.
13
PFAS Detected
2
Above EPA Limits
3
Water Systems
208%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 125% of limit
Detected: 5.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 208% of limit
Detected: 8.30 ppt
FOX LAKE
IL0970200 High RiskWater Type
Groundwater
PFAS Detected
3
Above MCL
1
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 5.00ppt | 125% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 10600.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 3.50ppt | No federal limit | — | Unregulated |
MCHENRY
IL1110600 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 9090.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.90ppt | No federal limit | — | Unregulated |
Prairie Path Water Co. - Whispering Hills
IL1115700 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
1
State
Illinois
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 8.30ppt | 208% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.70ppt | 57% of limit
| 10 ppt | Below limit |
lithium | 11000.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 14.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 13.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.70ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 8.60ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.60ppt | No federal limit | — | Unregulated |
Note: ZIP code 60050 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.