We read 10 results from City of Novi’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 48,000 people · Water system ID MI0004870 · Read the district’s 2025 report (opens in a new tab)
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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 |
|---|---|---|---|---|
| PFOA (a PFAS)highest measured · range ND to 2 · listed as a violation in the report · Springwells plant · 2025 report, page 4 | 2 ppt | 0.007 ppt | 8 ppt (Michigan) now; 4 ppt from 2029 | Above the health goal286x the health goal |
| Chlorineas reported · range 0.92 to 1.07 · listed as a violation in the report · Lake Huron water area · 2025 report, page 4 | 1.02 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 4 | Not detected | 0.3 ppm | 1.3 ppm (action level) | Not detected |
| Disinfection byproducts (HAA5)as reported · range 11 to 28 · listed as a violation in the report · Springwells water area · 2025 report, page 4 | 17 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)as reported · range 30 to 59 · listed as a violation in the report · Springwells water area · 2025 report, page 4 | 44.3 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · listed as a violation in the report · Lake Huron plant · 2025 report, page 4 | 0.58 ppm | 1 ppm | 4 ppm | Below the health goal |
| Lead90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · Customer taps · 2025 report, page 4 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)as reported · listed as a violation in the report · Lake Huron plant · 2025 report, page 4 | 0.33 ppm | 10 ppm | 10 ppm | Below the health goal |
| Turbidity (cloudiness)highest measured · listed as a violation in the report · Springwells plant · 2025 report, page 4 | 0.21 NTU | None set | 1 NTU | Below the legal limit |
| Sodiumsingle sample · Springwells plant · 2025 report, page 4 | 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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS)
What removes it: Reverse osmosis.
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