We read 17 results from Cws - Selma’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 26,517 people · Water system ID CA1010024 · 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 |
|---|---|---|---|---|
| Chromium-6average · range 0.88 to 2.8 · Groundwater · 2025 report, page 13 | 1.5 ppb | 0.02 ppb | 10 ppb | Above the health goal75x the health goal |
| Uraniumaverage · range ND to 17.9 · printed as 3.1 pCi/L · Groundwater · 2025 report, page 13 | 4.62 ppb | 0.6 ppb | 30 ppb | Above the health goal7.7x the health goal |
| Arsenicaverage · range ND to 4.2 · Groundwater · 2025 report, page 13 | Not detected | 0.004 ppb | 10 ppb | Not detected |
| Chlorideaverage · range 3.4 to 34 · Groundwater · 2025 report, page 14 | 12 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.25 to 1.6 · Distribution system · 2025 report, page 14 | 1.1 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 32 homes tested, 0 over the action level · Customer taps · 2025 report, page 13 | Not detected | 0.3 ppm | 1.3 ppm (action level) | Not detected |
| Dibromochloropropane (DBCP)average · range ND to 0.02 · printed as ND ppt · Groundwater · 2025 report, page 13 | Not detected | 0 ppb | 0.2 ppb | Not detected |
| Gross alpha (radioactivity)average · range ND to 13 · sampled 2024 · Groundwater · 2025 report, page 13 | Not detected | 0 pCi/L | 15 pCi/L | Not detected |
| Ironaverage · range ND to 0.59 · printed as ND ppb · Groundwater · 2025 report, page 14 | Not detected | — | 0.3 ppm guideline | Not detected |
| Lead90th percentile of 32 homes tested, 0 over the action level · Customer taps · 2025 report, page 13 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Manganeseaverage · range ND to 0.06 · printed as ND ppb · Groundwater · 2025 report, page 14 | Not detected | — | 0.05 ppm guideline | Not detected |
| Nitrate (as N)average · range 0.65 to 4.7 · Groundwater · 2025 report, page 13 | 2.6 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfateaverage · range 3.2 to 35 · Groundwater · 2025 report, page 14 | 13 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 65 to 290 · Groundwater · 2025 report, page 14 | 143 ppm | — | 500 ppm guideline | Within the guideline |
| Turbidity (cloudiness)average · range ND to 2.2 · Groundwater · 2025 report, page 14 | 0.35 NTU | None set | 1 NTU | Below the legal limit |
| Conductivityaverage · range 100 to 460 · Groundwater · 2025 report, page 14 | 220 µS/cm | None set | None | No health limit |
| Vanadiumaverage · range ND to 18 · sampled 2024 · Groundwater · 2025 report, page 14 | 8.2 ppb | 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.
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