We read 21 results from Martinsburg Pws’s 2025 water quality report. No results over a legal limit; 6 above a health goal or guideline.
Serves about 559 people · Water system ID MO2010506 · 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 |
|---|---|---|---|---|
| Fluoridehighest measured · range 1.98 to 2.35 · sampled 2022 · 2025 report, page 2 | 2.35 ppm | 1 ppm | 4 ppm | Above the 2 ppm secondary standard1.2x the 2 ppm secondary standard (EPA's level to prevent tooth discoloration, also used as health guidance); below the 4 ppm legal limit |
| Gross alpha (radioactivity)highest measured · range 4.5 to 4.5 · 2025 report, page 2 | 4.5 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 · sampled 2024 · Customer taps · 2025 report, page 2 | 1.6 ppb | 0.2 ppb | 15 ppb (action level) | Above the health goal8x the health goal |
| Radium (combined 226 + 228)highest measured · range 1.9 to 1.9 · 2025 report, page 2 | 1.9 pCi/L | 0 pCi/L | 5 pCi/L | Above the health goalThe health goal is zero |
| Radium-226highest measured · range 1.9 to 1.9 · 2025 report, page 2 | 1.9 pCi/L | 0.05 pCi/L | 5 pCi/L | Above the health goal38x the health goal |
| Total dissolved solidshighest measured · range 500 to 593 · sampled 2022 · 2025 report, page 3 | 593 ppm | — | 500 ppm guideline | Above the guideline1.2x the guideline (taste, odor or stains; not a health limit) |
| Bariumhighest measured · range 0.02 to 0.03 · sampled 2022 · 2025 report, page 2 | 0.03 ppm | 2 ppm | 2 ppm | Below the health goal |
| Chloridehighest measured · range 26.3 to 41.8 · sampled 2022 · 2025 report, page 3 | 41.8 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 | 0.21 ppm | 0.3 ppm | 1.3 ppm (action level) | Below the health goal |
| Ironhighest measured · range 0.13 to 0.29 · sampled 2022 · 2025 report, page 3 | 0.29 ppm | — | 0.3 ppm guideline | Within the guideline |
| Manganesehighest measured · range 0.0024 to 0.0029 · sampled 2022 · 2025 report, page 3 | 0.0029 ppm | — | 0.05 ppm guideline | Within the guideline |
| pHhighest measured · range 7.23 to 7.29 · sampled 2022 · 2025 report, page 3 | 7.29 | — | — | Normal range |
| Sulfatehighest measured · range 80.8 to 122 · sampled 2022 · 2025 report, page 3 | 122 ppm | — | 250 ppm guideline | Within the guideline |
| Zinchighest measured · range 0.04 to 0.06 · sampled 2022 · 2025 report, page 3 | 0.06 ppm | — | 5 ppm guideline | Within the guideline |
| Alkalinityhighest measured · range 337 to 363 · sampled 2022 · 2025 report, page 3 | 363 ppm | None set | None | No health limit |
| Calciumhighest measured · range 53.5 to 60.4 · sampled 2022 · 2025 report, page 3 | 60.4 ppm | None set | None | No health limit |
| Hardnesshighest measured · range 13.9 to 15.6 · sampled 2022 · 2025 report, page 3 | 15.6 gpg (267 ppm) | — | — | Very hard |
| Magnesiumhighest measured · range 25.4 to 28.3 · sampled 2022 · 2025 report, page 3 | 28.3 ppm | None set | None | No health limit |
| Nickelhighest measured · range 1.35 to 1.51 · printed as 0.00151 MG/L · sampled 2022 · 2025 report, page 3 | 1.51 ppb | None set | None | No health limit |
| Potassiumhighest measured · range 11.9 to 13.5 · sampled 2022 · 2025 report, page 3 | 13.5 ppm | None set | None | No health limit |
| Sodiumhighest measured · range 82.7 to 124 · sampled 2022 · 2025 report, page 3 | 124 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.
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.
Fluoride
Found: Fluoride
What removes it: Reverse osmosis.
Radium and uranium
Found: Gross alpha (radioactivity), Radium (combined 226 + 228), Radium-226
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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