We read 5 results from City of Milpitas’s 2024 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 77,961 people · Water system ID CA4310005 · Read the district’s 2024 report (opens in a new tab)
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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.
| Contaminant | Result | Health goal | Legal limit | What it means |
|---|---|---|---|---|
| Lead90th percentile of 35 homes tested, 0 over the action level · sampled 2022 · Customer taps · 2024 report, page 12 | 1.7 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8.5x the health goal |
| Total coliform bacteriahighest month · range ND to 1.53 · Distribution system · 2024 report, page 12 | 1.53 % positive | 0 % positive | 5 % positive | Above the health goalThe health goal is zero |
| Chlorinehighest running annual average · range 2.56 to 3 · Distribution system · 2024 report, page 12 | 2.77 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 35 homes tested, 0 over the action level · sampled 2022 · Customer taps · 2024 report, page 12 | 0.06 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest running annual average · range 20 to 53 · Distribution system · 2024 report, page 12 | 50.3 ppb | None set | 80 ppb | Below 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. 1 number we weren’t sure about is held back until a person checks.
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.
Bacteria and viruses
Found: Total coliform bacteria
What removes it: UV purification (and tell your utility).
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