We read 14 results from Golden State Water Co. - Cordova’s 2025 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 47,161 people · Water system ID CA3410015 · 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 ND to 2.3 · Sources · 2025 report, page 8 | 0.73 ppb | 0.02 ppb | 10 ppb | Above the health goal37x the health goal |
| Uraniumaverage · range 6.85 to 8.64 · printed as 5.4 pCi/L · Sources · 2025 report, page 8 | 8.05 ppb | 0.6 ppb | 30 ppb | Above the health goal13x the health goal |
| Chlorideaverage · range 2.2 to 19 · Sources · 2025 report, page 8 | 5.2 ppm | — | 250 ppm guideline | Within the guideline |
| Chlorineaverage · range 0.4 to 1.8 · Distribution system · 2025 report, page 9 | 1 ppm | None set | 4 ppm | Below the legal limit |
| Copper90th percentile of 31 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 9 | 0.24 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)average · range ND to 21 · Distribution system · 2025 report, page 9 | 12.5 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)average · range ND to 37 · Distribution system · 2025 report, page 9 | 18.8 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 31 homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 9 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Nitrate (as N)average · range ND to 4.1 · Sources · 2025 report, page 8 | 0.87 ppm | 10 ppm | 10 ppm | Below the health goal |
| Sulfateaverage · range 2.7 to 28 · Sources · 2025 report, page 8 | 7 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 53 to 390 · Sources · 2025 report, page 8 | 120 ppm | — | 500 ppm guideline | Within the guideline |
| Conductivityaverage · range 81 to 610 · Sources · 2025 report, page 8 | 180 µS/cm | None set | None | No health limit |
| Hardnessaverage · range 1.46 to 15.8 · Sources · 2025 report, page 8 | 4.39 gpg (75 ppm) | — | — | Moderately hard |
| Sodiumaverage · range 3.5 to 22 · Sources · 2025 report, page 8 | 7.4 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.
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