We read 11 results from Riverstone/Rootcreek Water District’s 2025 water quality report. No results over a legal limit; 3 above a health goal or guideline.
Serves about 5,507 people · Water system ID CA2010016 · 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 3.3 to 5 · 2025 report, page 5 | 4.42 ppb | 0.004 ppb | 10 ppb | Above the health goal1,105x the health goal |
| Manganeseas reported · range ND to 0.26 · printed as 71.85 ppb · 2025 report, page 6 | 0.07 ppm | — | 0.05 ppm guideline | Above the guideline1.4x the guideline (taste, odor or stains; not a health limit) |
| Total dissolved solidsas reported · range 260 to 860 · 2025 report, page 6 | 506 ppm | — | 500 ppm guideline | Above the guideline1x the guideline (taste, odor or stains; not a health limit) |
| Bariumas reported · range 0.08 to 0.49 · 2025 report, page 5 | 0.26 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chlorideas reported · range 11 to 300 · 2025 report, page 6 | 127 ppm | — | 250 ppm guideline | Within the guideline |
| Fluorideas reported · range ND to 0.2 · 2025 report, page 5 | 0.12 ppm | 1 ppm | 2 ppm | Below the health goal |
| Ironas reported · range ND to 0.33 · printed as 66.8 ppb · 2025 report, page 6 | 0.07 ppm | — | 0.3 ppm guideline | Within the guideline |
| Nitrate (as N)as reported · range ND to 6.3 · 2025 report, page 5 | 2.32 ppm | 10 ppm | 10 ppm | Below the health goal |
| Seleniumas reported · range ND to 2.7 · 2025 report, page 5 | 0.9 ppb | 30 ppb | 50 ppb | Below the health goal |
| Sulfateas reported · range 4.5 to 34 · 2025 report, page 6 | 16.5 ppm | — | 250 ppm guideline | Within the guideline |
| Nickelas reported · range ND to 2.9 · 2025 report, page 5 | 1.5 ppb | 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. 2 numbers we weren’t sure about are held back until a person checks.
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.
Sediment or cloudy water
Found: Manganese
What removes it: Oxidation filter.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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