💧 ZIP Water Report

Tap water in South Lyon,, MI — ZIP 48178

3 public water systems serving about 21,345 people. PFAS "forever chemicals" have been detected here.

A
Excellent
PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5 testing. Levels and the 2024 federal limits are shown per system below.

Water systems serving 48178

South Lyon, City Of
PWSID MI0006110 · serves 11,055 · groundwater
0 health-based / 0 total violations (5 yrs) · PFAS up to 5.4 ppt
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Lyon Township
PWSID MI0003968 · serves 9,390 · groundwater
0 health-based / 3 total violations (5 yrs)
A
Green Oak Twp - Centennial Farms
PWSID MI0001543 · serves 900 · groundwater
0 health-based / 1 total violations (5 yrs)
A

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology