We read 8 results from City of Bay City’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 32,255 people · Water system ID MI0000470 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
Results from the 2025 report
Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 6 over the action level · Customer taps (City of Bay City) · 2025 report, page 11 | 10 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal50x the health goal |
| Bariumsingle sample · listed as a violation in the report · sampled 2023 · Bay Area Water Treatment Plant · 2025 report, page 16 | 0.02 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorinehighest running annual average · range 0.2 to 1.2 · listed as a violation in the report · Distribution system (City of Bay City) · 2025 report, page 15 | 0.75 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · Customer taps (City of Bay City) · 2025 report, page 11 | 0.2 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 9.2 to 19 · listed as a violation in the report · Distribution system (City of Bay City) · 2025 report, page 14 | 16 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 15 to 61 · listed as a violation in the report · Distribution system (City of Bay City) · 2025 report, page 14 | 35 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridesingle sample · listed as a violation in the report · Bay Area Water Treatment Plant · 2025 report, page 16 | 0.63 ppm | 1 ppm | 4 ppm | Below the health goal |
| Sodiumsingle sample · listed as a violation in the report · Bay Area Water Treatment Plant · 2025 report, page 16 | 5.4 ppm | None set | None | No health limit |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
What you can do
Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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