We read 20 results from Washington City’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Water system ID UTAH27021 · Read the district’s 2025 report (opens in a new tab)
Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.
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 1.3 to 3.8 · listed as a violation in the report · Sources · 2025 report, page 4 | 3.8 ppb | 0.004 ppb | 10 ppb | Above the health goal950x the health goal |
| Gross alpha (radioactivity)highest measured · listed as a violation in the report · Sources · 2025 report, page 5 | 3.77 pCi/L | 0 pCi/L | 15 pCi/L | Above the health goalThe health goal is zero |
| Lead90th percentile of homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 4 | 2.1 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal11x the health goal |
| Radium (combined 226 + 228)highest measured · range 0.03 to 2.41 · listed as a violation in the report · Sources · 2025 report, page 5 | 2.41 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Total dissolved solidshighest measured · range 210 to 656 · listed as a violation in the report · Sources · 2025 report, page 5 | 656 ppm | — | 500 ppm guideline | Above the guideline1.3x the guideline (taste, odor or stains; not a health limit) |
| Uraniumhighest measured · range 0.69 to 2.7 · listed as a violation in the report · Sources · 2025 report, page 5 | 2.7 ppb | 0.6 ppb | 30 ppb | Above the health goal4.5x the health goal |
| Antimonyhighest measured · listed as a violation in the report · Sources · 2025 report, page 4 | 0.6 ppb | 1 ppb | 6 ppb | Below the health goal |
| Bariumhighest measured · range 0.05 to 0.11 · listed as a violation in the report · printed as 111 ppb · Sources · 2025 report, page 4 | 0.11 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chromium (total)highest measured · range ND to 2.2 · listed as a violation in the report · Sources · 2025 report, page 4 | 2.2 ppb | None set | 100 ppb | Below the legal limit |
| Copper90th percentile of homes tested, 0 over the action level · listed as a violation in the report · sampled 2024 · Customer taps · 2025 report, page 4 | 0.09 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Cyanidehighest measured · listed as a violation in the report · Sources · 2025 report, page 4 | 6.1 ppb | 150 ppb | 200 ppb | Below the health goal |
| Disinfection byproducts (HAA5)highest measured · range ND to 17.4 · listed as a violation in the report · Distribution system · 2025 report, page 5 | 17.4 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest measured · range 5 to 48 · listed as a violation in the report · Distribution system · 2025 report, page 5 | 48 ppb | None set | 80 ppb | Below the legal limit |
| Fluoridehighest measured · range 0.03 to 0.25 · listed as a violation in the report · printed as 253 ppb · Sources · 2025 report, page 4 | 0.25 ppm | 1 ppm | 4 ppm | Below the health goal |
| Nitrate (as N)highest measured · listed as a violation in the report · Sources · 2025 report, page 4 | 1.9 ppm | 10 ppm | 10 ppm | Below the health goal |
| Seleniumhighest measured · range ND to 4.2 · listed as a violation in the report · Sources · 2025 report, page 5 | 4.2 ppb | 30 ppb | 50 ppb | Below the health goal |
| Sulfatehighest measured · range 32 to 198 · listed as a violation in the report · Sources · 2025 report, page 5 | 198 ppm | — | 250 ppm guideline | Within the guideline |
| Turbidity (cloudiness)highest measured · listed as a violation in the report · Surface water plant · 2025 report, page 4 | 0.22 NTU | None set | 1 NTU | Below the legal limit |
| Nickelhighest measured · range ND to 9 · listed as a violation in the report · Sources · 2025 report, page 4 | 9 ppb | None set | None | No health limit |
| Sodiumhighest measured · range 8 to 53.4 · listed as a violation in the report · Sources · 2025 report, page 5 | 53.4 ppm | 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.
EPA testing for PFAS and lithium
EPA’s own nationwide testing (UCMR 5) found these in Washington City’s water between Oct 2023 and Jul 2024. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium29.1 ppbFound in 6 of 6 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.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Uranium
What removes it: Reverse osmosis.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
Salty taste / high TDS
Found: Total dissolved solids
What removes it: Reverse osmosis.
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