We read 9 results from Spo Co Water Dist 3 Sys 1’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.
Serves about 18,983 people · Water system ID WA5393351 · 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 |
|---|---|---|---|---|
| Arsenichighest measured · Source wells (System 1) · 2025 report, page 3 | 6.3 ppb | 0.004 ppb | 10 ppb | Above the health goal1,575x the health goal |
| PFOA (a PFAS)highest measured · Source wells (System 1) · 2025 report, page 3 | 2.19 ppt | 0.007 ppt | 4 ppt from 2029 | Above the health goal313x the health goal |
| PFOS (a PFAS)highest measured · Source wells (System 1) · 2025 report, page 3 | 2.81 ppt | 1 ppt | 4 ppt from 2029 | Above the health goal2.8x the health goal |
| Radium-228highest measured · Source wells (System 1) · 2025 report, page 3 | 0.14 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal7.3x the health goal |
| Bariumhighest measured · Source wells (System 1) · 2025 report, page 3 | 0.04 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of 30 homes tested, 0 over the action level · printed as 94.5 ppb · sampled 2023 · Customer taps · 2025 report, page 3 | 0.09 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (TTHM)highest measured · 2025 report, page 3 | 7.64 ppb | None set | 80 ppb | Below the legal limit |
| Nitrate (as N)highest measured · Source wells (System 1) · 2025 report, page 3 | 2.7 ppm | 10 ppm | 10 ppm | Below the health goal |
| PFBS (a PFAS)highest measured · Source wells (System 1) · 2025 report, page 3 | 2.83 ppt | 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. 1 number we weren’t sure about is held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Spo Co Water Dist 3 Sys 1’s water between Mar 2023 and Sep 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium12 ppbFound in 2 of 10 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.
PFAS ("forever chemicals")
Found: PFOA (a PFAS), PFOS (a PFAS)
What removes it: Reverse osmosis.
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