We read 15 results from Carmichael Water District’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 41,193 people · Water system ID CA3410004 · 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 |
|---|---|---|---|---|
| Arsenicaverage · range ND to 2.5 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 0.63 ppb | 0.004 ppb | 10 ppb | Above the health goal156x the health goal |
| Chromium-6average · range ND to 1.4 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 0.35 ppb | 0.02 ppb | 10 ppb | Above the health goal18x the health goal |
| Gross alpha (radioactivity)average · range ND to 1.83 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 0.89 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Tetrachloroethylene (PCE)average · range ND to 4 · Groundwater wells · 2025 report, page 2 | 2.5 ppb | 0.06 ppb | 5 ppb | Above the health goal42x the health goal |
| Uraniumaverage · range ND to 4.17 · printed as 0.70 pCi/L · sampled 2023 · Groundwater wells · 2025 report, page 2 | 1.04 ppb | 0.6 ppb | 30 ppb | Above the health goal1.7x the health goal |
| Bariumaverage · range ND to 0.18 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 0.08 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorineaverage · range 0.27 to 1.12 · Distribution system · 2025 report, page 2 | 0.88 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 30 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.09 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanideaverage · range ND to 6.9 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 1.73 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 5.7 to 20 · Distribution system · 2025 report, page 2 | 12 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 13 to 38 · Distribution system · 2025 report, page 2 | 22 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 30 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range ND to 5.1 · Groundwater wells · 2025 report, page 2 | 2.1 ppm | 10 ppm | 10 ppm | Below the health goal |
| Hardnessaverage · range 3.1 to 12.3 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 7.08 gpg (121 ppm) | — | — | Hard |
| Sodiumaverage · range 6 to 17 · sampled 2023 · Groundwater wells · 2025 report, page 2 | 10.1 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.
Radium and uranium
Found: Gross alpha (radioactivity), Uranium
What removes it: Reverse osmosis.
Industrial chemicals and pesticides
Found: Tetrachloroethylene (PCE)
What removes it: Carbon block or RO.
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