We read 10 results from Suburban Water Systems - Sativa’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 4,363 people · Water system ID CA1910147 · 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 ND to 4.7 · 2025 report, page 5 | 2.2 ppb | 0.004 ppb | 10 ppb | Above the health goal550x the health goal |
| Tetrachloroethylene (PCE)average · range ND to 2.2 · 2025 report, page 5 | 1.8 ppb | 0.06 ppb | 5 ppb | Above the health goal30x the health goal |
| Uraniumaverage · range ND to 9.39 · printed as 5.9 pCi/L · 2025 report, page 5 | 8.79 ppb | 0.6 ppb | 30 ppb | Above the health goal15x the health goal |
| Bariumaverage · range ND to 0.1 · 2025 report, page 5 | 0.1 ppm | 2 ppm | 2 ppm | Below the health goal |
| cis-1,2-Dichloroethyleneaverage · range ND to 1.2 · 2025 report, page 5 | Not detected | 70 ppb | 70 ppb | Not detected |
| Fluorideaverage · range 0.2 to 0.4 · 2025 report, page 5 | 0.4 ppm | 1 ppm | 2 ppm | Below the health goal |
| Manganeseaverage · range ND to 0.04 · printed as 3.7 ppb · 2025 report, page 5 | 0.0037 ppm | — | 0.05 ppm guideline | Within the guideline |
| Sulfateaverage · range 32 to 130 · 2025 report, page 5 | 107 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidsaverage · range 280 to 480 · 2025 report, page 5 | 396 ppm | — | 500 ppm guideline | Within the guideline |
| Trichloroethylene (TCE)average · range ND to 1.4 · 2025 report, page 5 | Not detected | 1.7 ppb | 5 ppb | Not detected |
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 Suburban Water Systems - Sativa’s water between Jun 2025 and Nov 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFOS9.4 pptFound in 1 of 2 samples · highest resultAbove the federal limit that takes effect in 2029 (4 ppt)
- PFHxS3.2 pptFound in 1 of 2 samples · highest resultNo federal limit in force for this one
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.
Industrial chemicals and pesticides
Found: Tetrachloroethylene (PCE)
What removes it: Carbon block or RO.
PFAS ("forever chemicals")
Found: PFOS (EPA testing)
What removes it: Reverse osmosis.
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