We read 16 results from Richmond Pws’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 5,797 people · Water system ID MO1010685 · 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 |
|---|---|---|---|---|
| Lead90th percentile of homes tested, 2 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 8.33 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal42x the health goal |
| Chloridehighest measured · range 21.2 to 21.2 · sampled 2023 · 2025 report, page 3 | 21.2 ppm | — | 250 ppm guideline | Within the guideline |
| Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 2 | 0.1 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Disinfection byproducts (HAA5)highest running annual average · range 27.4 to 27.4 · DBPDUAL-01 · 2025 report, page 2 | 27 ppb | None set | 60 ppb | Below the legal limit |
| Disinfection byproducts (TTHM)highest running annual average · range 57.1 to 57.1 · DBPDUAL-01 · 2025 report, page 2 | 57 ppb | None set | 80 ppb | Below the legal limit |
| pHhighest measured · range 8.32 to 8.32 · sampled 2023 · 2025 report, page 3 | 8.32 | — | — | Normal range |
| Sulfatehighest measured · range 29.1 to 29.1 · sampled 2023 · 2025 report, page 3 | 29.1 ppm | — | 250 ppm guideline | Within the guideline |
| Total dissolved solidshighest measured · range 194 to 194 · sampled 2023 · 2025 report, page 3 | 194 ppm | — | 500 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 149 to 149 · sampled 2023 · 2025 report, page 3 | 149 ppm | None set | None | No health limit |
| Calciumhighest measured · range 21.7 to 21.7 · sampled 2023 · 2025 report, page 3 | 21.7 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 8.6 to 8.6 · sampled 2023 · 2025 report, page 3 | 8.6 gpg (147 ppm) | — | — | Hard |
| Lithiumhighest measured · range 22.4 to 24.2 · sampled 2023 · highest of 2 sources · 2025 report, page 3 | 24.2 ppb | None set | None | No health limit |
| Magnesiumhighest measured · range 22.4 to 22.4 · sampled 2023 · 2025 report, page 3 | 22.4 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.16 to 1.16 · printed as 0.00116 MG/L · sampled 2023 · 2025 report, page 3 | 1.16 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 3.4 to 3.4 · sampled 2023 · 2025 report, page 3 | 3.4 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 15.7 to 15.7 · sampled 2023 · 2025 report, page 3 | 15.7 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. 3 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 Richmond Pws’s water between May 2023 and Nov 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium24.2 ppbFound in 2 of 2 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.
Lead
Found: Lead
What removes it: Certified carbon block or RO.
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