What was found in ZIP 48307
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 |
|---|---|---|---|
| Lead | 0.0013 mg/L 8.7% of the EPA limit 0.0150 mg/L Main supplier: ROCHESTER HILLS · 74,000 people · 2025
Highest in the ZIP: 0.0017 mg/L — ROCHESTER · 7,130 people · 2023 | 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 48307
| Supplier | State | Population served |
|---|---|---|
| ROCHESTER HILLS | MI | 74,000 |
| ROCHESTER | MI | 7,130 |
| ROCHESTER EAST | MI | 5,100 |
Frequently asked questions about ZIP 48307 tap water
Is the tap water in ZIP 48307 safe to drink?
EPA testing detected 1 contaminant across the water suppliers serving ZIP 48307. 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 48307?
3 public water suppliers report EPA drinking-water monitoring for ZIP 48307. Each is listed above with its population served.
What contaminants are in ZIP 48307's water?
EPA monitoring detected Lead across this ZIP's suppliers. The full list with levels and sources is above.