We read 9 results from Valley State Prison’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 3,173 people · Water system ID CA2010801 · 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 |
|---|---|---|---|---|
| Arsenicas reported · range 1.9 to 15 · 2025 report | 8.2 ppb | 0.004 ppb | 10 ppb | Above the health goal2,050x the health goal |
| Bariumas reported · range 0.07 to 0.09 · sampled 2024 · 2025 report | 0.08 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideas reported · range 32 to 35 · sampled 2024 · 2025 report | 34 ppm | — | 250 ppm guideline | Within the guideline |
| Disinfection byproducts (TTHM)as reported · 2025 report | 2.5 ppb | None set | 80 ppb | Below the legal limit |
| Fluorideas reported · range 0.12 to 0.17 · sampled 2024 · 2025 report | 0.14 ppm | 1 ppm | 2 ppm | Below the health goal |
| Manganeseas reported · range 0.007 to 0.06 · printed as 39 ppb · sampled 2024 · 2025 report | 0.04 ppm | — | 0.05 ppm guideline | Within the guideline |
| Sulfateas reported · range 7.5 to 11 · sampled 2024 · 2025 report | 9.1 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsas reported · range 220 to 270 · sampled 2024 · 2025 report | 237 ppm | — | 500 ppm guideline | Within the guideline |
| Zincas reported · range ND to 0.15 · printed as 47 ppb · sampled 2024 · 2025 report | 0.05 ppm | — | 5 ppm guideline | Within the guideline |
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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