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Tap water quality report

Bay City, MI

EPA monitoring detected 1 contaminant across the 16 water suppliers serving Bay City. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

16
water suppliers
89,553
people served
1
contaminants found
Michigan rankings Lead in Michigan PFAS in Michigan

What was found in Bay City's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Lead
0.0100 mg/L 67%
of the EPA limit 0.0150 mg/L
Main supplier: BAY CITY, CITY OF · 32,255 people · 2025
16/16 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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Bay City

SupplierPopulation served
BAY CITY, CITY OF 32,255
BANGOR TOWNSHIP 11,999
HAMPTON TOWNSHIP 9,652
BAY CO. DEPT OF WATER & SEWER 8,465
WILLIAMS TOWNSHIP 5,444
MONITOR TOWNSHIP 5,217
FRANKENLUST TOWNSHIP 3,626
KAWKAWLIN TOWNSHIP 3,170
BANGOR-MONITOR METRO DISTRICT 2,971
PINCONNING TOWNSHIP 1,479
MERRITT TOWNSHIP 1,474
FRASER TOWNSHIP 1,226
BEAVER TOWNSHIP 1,211
BEAVER ROAD AREA WATER ASSOC. 829
PORTSMOUTH TOWNSHIP 535
BAY AREA WATER SYSTEM 0

Frequently asked questions about Bay City tap water

Is Bay City tap water safe to drink?

EPA testing detected 1 contaminant in the water serving Bay City. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Bay City?

16 public water suppliers report drinking-water monitoring for Bay City, Michigan to the EPA. Each is listed above with its population served.

What contaminants are in Bay City's water?

The contaminants EPA monitoring detected in Bay City include Lead. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.