We read 6 results from Buffalo Island Reg Water Dist’s 2025 water quality report. No results over a legal limit; 1 above a health goal or guideline.
Serves about 3,062 people · Water system ID AR0000671 · 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 |
|---|---|---|---|---|
| Copper90th percentile of 20 homes tested, 0 over the action level · Customer taps · 2025 report, page 2 | 0.44 ppm | 0.3 ppm | 1.3 ppm (action level) | Above the health goal1.5x the health goal |
| Chlorineaverage · range 0.69 to 1.42 · 2025 report, page 2 | 1.21 ppm | None set | 4 ppm | Below the legal limit |
| Disinfection byproducts (HAA5)highest measured · 2025 report, page 2 | Not detected | None set | 60 ppb | Not detected |
| Disinfection byproducts (TTHM)highest measured · 2025 report, page 2 | 3.34 ppb | None set | 80 ppb | Below the legal limit |
| Lead90th percentile of 20 homes tested, 0 over the action level · printed as <0.001 ppm · Customer taps · 2025 report, page 2 | Not detected | 0.2 ppb | 15 ppb (action level) | Not detected |
| Lithiumhighest measured · 2025 report, page 2 | 13.5 ppb | 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 Buffalo Island Reg Water Dist’s water between Jan 2025 and Jul 2025. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.
- Lithium14 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.
Copper
Found: Copper
What removes it: Reverse osmosis.
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