City of Royal Oak water quality

Updated 2026-10-22 · Michigan · Affiliate disclosure

We read 4 results from City of Royal Oak’s 2024 water quality report. No results over a legal limit; 1 above a health goal or guideline.

Serves about 57,236 people · Water system ID MI0005830 · Read the district’s 2024 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 2024 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.

ContaminantResultHealth goalLegal limitWhat it means
Lead90th percentile of homes tested, 0 over the action level · Customer taps · 2024 report, page 121 ppb0.2 ppb15 ppb (action level)Above the health goal5x the health goal
Copper90th percentile of homes tested, 0 over the action level · Customer taps · 2024 report, page 120.1 ppm0.3 ppm1.3 ppm (action level)Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 9 to 24 · listed as a violation in the report · Distribution system · 2024 report, page 1216 ppbNone set60 ppbBelow the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 15 to 53 · listed as a violation in the report · Distribution system · 2024 report, page 1234 ppbNone set80 ppbBelow the legal 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.

See filters that remove itWhat water filter removes lead?

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