We read 10 results from Farmington Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 18,217 people · Water system ID MO4010270 · 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 · range ND to 2.64 · sampled 2024 · 2025 report, page 2 | 2.64 ppb | 0.004 ppb | 10 ppb | Above the health goal660x the health goal |
| Lead90th percentile of homes tested, 1 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 4.82 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal24x the health goal |
| Radium (combined 226 + 228)highest measured · range ND to 1.5 · 2025 report, page 2 | 1.5 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range ND to 1.1 · 2025 report, page 2 | 1.1 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal22x the health goal |
| Radium-228highest measured · range ND to 1.5 · 2025 report, page 2 | 1.5 pCi/L | 0.02 pCi/L | 5 pCi/L | Above the health goal79x the health goal |
| Uraniumhighest measured · range ND to 15.2 · 2025 report, page 2 | 15.2 ppb | 0.6 ppb | 30 ppb | Above the health goal25x the health goal |
| Bariumhighest measured · range ND to 0.0047 · sampled 2024 · 2025 report, page 2 | 0.0047 ppm | 2 ppm | 2 ppm | Below the health goal |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.17 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Mercuryhighest measured · range ND to 0.25 · sampled 2024 · 2025 report, page 2 | 0.25 ppb | 1.2 ppb | 2 ppb | Below the health goal |
| Nitrate (as N)highest measured · range 0.04 to 1.39 · 2025 report, page 2 | 1.39 ppm | 10 ppm | 10 ppm | Below the health goal |
Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper. 24 numbers we weren’t sure about are held back until a person checks.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Farmington Pws’s water between Jun 2024 and Mar 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- PFHxS4.8 pptFound in 2 of 28 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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Radium and uranium
Found: Radium (combined 226 + 228), Radium-226, Radium-228, Uranium
What removes it: Reverse osmosis.
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