Buffalo Gap water quality

Updated 2026-10-22 · South Dakota · Affiliate disclosure

We read 5 results from Buffalo Gap’s 2025 water quality report. No results over a legal limit; 4 above a health goal or guideline.

Serves about 126 people · Water system ID SD4600077 · 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.

ContaminantResultHealth goalLegal limitWhat it means
Gross alpha (radioactivity)highest measured · range 3 to 10 · sampled 2022 · 2025 report, page 410 pCi/L0 pCi/L15 pCi/LAbove the health goalThe health goal is zero
Lead90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 42 ppb0.2 ppb15 ppb (action level)Above the health goal10x the health goal
Radium (combined 226 + 228)highest measured · range 2 to 3 · sampled 2023 · 2025 report, page 43 pCi/L0 pCi/L5 pCi/LAbove the health goalThe health goal is zero
Uraniumhighest measured · range 25 to 29 · sampled 2022 · 2025 report, page 429 ppb0.6 ppb30 ppbAbove the health goal48x the health goal
Copper90th percentile of homes tested, 0 over the action level · sampled 2024 · Customer taps · 2025 report, page 40.1 ppm0.3 ppm1.3 ppm (action level)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. 1 number we weren’t sure about is held back until a person checks.

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.

See filters that remove it

Lead

Found: Lead

What removes it: Certified carbon block or RO.

See filters that remove itWhat water filter removes lead?

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