ZIP Code 48858
Low Level4
PFAS Detected
0
Above EPA Limits
3
Water Systems
N/A
Highest % of MCL
MT. PLEASANT
055293201 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
05
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 9290.00ppt | No federal limit | — | Unregulated |
MOUNT PLEASANT, CITY OF
MI0004530 Low LevelWater Type
MX
PFAS Detected
1
Above MCL
0
State
Michigan
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 11000.00ppt | No federal limit | — | Unregulated |
UNION TOWNSHIP
MI0006725 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Michigan
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 9430.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.80ppt | No federal limit | — | Unregulated |
Note: ZIP code 48858 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.