We read 23 results from City of Shafter’s 2025 water quality report. No results over a legal limit; 5 above a health goal or guideline.
Serves about 21,915 people · Water system ID CA1510019 · 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 1 to 7.3 · Wells · 2025 report, page 4 | 5.4 ppb | 0.004 ppb | 10 ppb | Above the health goal1,350x the health goal |
| Chromium-6average · range 0.4 to 2.6 · Wells · 2025 report, page 4 | 1.7 ppb | 0.02 ppb | 10 ppb | Above the health goal85x the health goal |
| Dibromochloropropane (DBCP)average · range ND to 0.04 · printed as 6.26 ppt · Wells · 2025 report, page 4 | 0.0063 ppb | 0 ppb | 0.2 ppb | Above the health goalThe health goal is zero |
| Gross alpha (radioactivity)average · range ND to 3.9 · Wells · 2025 report, page 4 | 0.66 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Uraniumaverage · range ND to 2.68 · printed as 0.9 pCi/L · sampled 2020 · Wells · 2025 report, page 4 | 1.34 ppb | 0.6 ppb | 30 ppb | Above the health goal2.2x the health goal |
| Chlorideaverage · range 13 to 177 · Wells · 2025 report, page 5 | 66.3 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.18 to 2.2 · Distribution system · 2025 report, page 4 | 1.15 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 38 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 5 | 0.0085 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)average · range ND to 6 · Distribution system · 2025 report, page 4 | 0.38 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range ND to 26 · Distribution system · 2025 report, page 4 | 5.88 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideaverage · range ND to 0.2 · Wells · 2025 report, page 4 | 0.14 ppm | 1 ppm | 2 ppm | Below the health goal |
| Nitrate (as N)average · range ND to 8.7 · Wells · 2025 report, page 4 | 4.32 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfateaverage · range 11 to 415 · Wells · 2025 report, page 5 | 147 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 120 to 1,030 · Wells · 2025 report, page 5 | 400 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityaverage · range 20 to 66 · Wells · 2025 report, page 4 | 40.9 ppm | None set | None | No health limit |
| Bromodichloromethaneaverage · range ND to 3 · Distribution system · 2025 report, page 5 | 0.88 ppb | None set | None | No health limit |
| Bromoformaverage · range ND to 15 · Distribution system · 2025 report, page 5 | 3.63 ppb | None set | None | No health limit |
| Calciumaverage · range 7 to 83 · Wells · 2025 report, page 4 | 37 ppm | None set | None | No health limit |
| Conductivityaverage · range 190 to 1,510 · Wells · 2025 report, page 5 | 633 µS/cm | None set | None | No health limit |
| Dibromochloromethaneaverage · range ND to 8 · Distribution system · 2025 report, page 5 | 2.31 ppb | None set | None | No health limit |
| Hardnessaverage · range 0.99 to 12.1 · Wells · 2025 report, page 4 | 5.39 gpg (92.2 ppm) | — | — | Moderately hard |
| Potassiumaverage · range ND to 3 · Wells · 2025 report, page 4 | 1.14 ppm | None set | None | No health limit |
| Sodiumaverage · range 37 to 197 · Wells · 2025 report, page 4 | 79.1 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.
Industrial chemicals and pesticides
Found: Dibromochloropropane (DBCP)
What removes it: Carbon block or RO.
Radium and uranium
Found: Gross alpha (radioactivity), Uranium
What removes it: Reverse osmosis.
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