We read 4 results from Calipatria State Prison’s 2024 water quality report. No results over a legal limit; 2 above a health goal or guideline.
Serves about 4,800 people · Water system ID CA1310800 · Read the district’s 2024 report (opens in a new tab)
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Results from the 2024 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 |
|---|---|---|---|---|
| Sulfateas reported · range 250 to 280 · 2024 report | 260 ppm | — | 250 ppm guideline | Above the guideline1x the guideline (taste, odor or stains; not a health limit) |
| Total dissolved solidsas reported · range 680 to 700 · 2024 report | 690 ppm | — | 500 ppm guideline | Above the guideline1.4x the guideline (taste, odor or stains; not a health limit) |
| Aluminumas reported · range ND to 0.28 · printed as 100 ug/L · 2024 report | 0.1 ppm | — | 0.2 ppm guideline | Within the guideline |
| Hardnessas reported · range 20.5 to 21.1 · 2024 report | 21.1 gpg (360 ppm) | — | — | Very hard |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Calipatria State Prison’s water between Mar 2025 and Dec 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium59.3 ppbFound in 4 of 4 samples · highest resultAbove EPA’s health reference level of 10 ppb (a guide, not a legal limit)
Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.
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.
Salty taste / high TDS
Found: Sulfate, Total dissolved solids
What removes it: Reverse osmosis.
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