💧 ZIP Water Report

Tap water in Bay City, MI — ZIP 48623

4 public water systems serving about 30,228 people.

C
Fair

Water systems serving 48623

Thomas Township
PWSID MI0006580 · serves 11,931 · surface water
0 health-based / 0 total violations (5 yrs)
A
Tittabawassee Township
PWSID MI0002470 · serves 9,227 · surface water
1 health-based / 4 total violations (5 yrs)
C
Williams Township
PWSID MI0007125 · serves 5,444 · surface water
0 health-based / 0 total violations (5 yrs)
A
Frankenlust Township
PWSID MI0002410 · serves 3,626 · surface water
0 health-based / 0 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