What was found in ZIP 48858
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 967.5 µg/L 24% of the EPA limit 4000 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2017 | 1/3 | SYR4 |
| Lead | 951.195 µg/L 6341% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2018 | 1/3 | SYR4 |
| Copper | 516 µg/L 40% of the EPA limit 1300 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2018 | 1/3 | SYR4 |
| Nitrate | 66 µg/L 0.7% of the EPA limit 10000 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2018 | 1/3 | SYR4 |
| TTHM | 51 µg/L 64% of the EPA limit 80 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2019 | 1/3 | SYR4 |
| Lithium | 11 µg/L No EPA limit set Main supplier: MOUNT PLEASANT · 21,688 people · 2025 | 3/3 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 8.22 µg/L 14% of the EPA limit 60 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2019 | 1/3 | SYR4 |
| Xylenes, Total | 1.7 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: MT. PLEASANT · 10,198 people · 2017 | 1/3 | SYR4 |
| PFBS | 0.0048 µg/L No EPA limit set Highest in the ZIP: UNION TOWNSHIP · 12,927 people · 2023 | 1/3 | UCMR-5 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L Main supplier: MOUNT PLEASANT · 21,688 people · 2024
Highest in the ZIP: 0.0020 mg/L — UNION TOWNSHIP · 12,927 people · 2024 | 3/3 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 48858
| Supplier | State | Population served |
|---|---|---|
| MOUNT PLEASANT | MI | 21,688 |
| UNION TOWNSHIP | MI | 12,927 |
| MT. PLEASANT | 10,198 |
Frequently asked questions about ZIP 48858 tap water
Is the tap water in ZIP 48858 safe to drink?
EPA testing detected 10 contaminants across the water suppliers serving ZIP 48858. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 48858?
3 public water suppliers report EPA drinking-water monitoring for ZIP 48858. Each is listed above with its population served.
What contaminants are in ZIP 48858's water?
EPA monitoring detected Fluoride, Lead, Copper, Nitrate, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.