Private-well testing shows some nitrate and bacterial concerns in Vernon County, UW‑Stevens Point reports

Jun 25, 2026

A UW–Stevens Point presentation to the Vernon County Board summarized private well testing from 163 participants: about 5% of local wells met or exceeded the nitrate health standard, ~13% had coliform and ~1% E. coli; presenters urged annual bacteria testing and ongoing county participation in the study.

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Cayla Cavey of the University of Wisconsin–Stevens Point presented findings from the Driftless Area Water Study at the Vernon County Board meeting on June 25. The study aggregated private-well testing across Vernon County: 163 participants provided samples analyzed for 22 common water-quality measures.

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