Columbus Utilities, WI Water Quality
Is Columbus Utilities's water safe to drink?
Columbus Utilities has a health-based violation on record, but none in the last five years - an older issue, not necessarily a current one. It serves 5,173 people through 1,915 service connections.
Columbus Utilities's record against the rest of the country
61 total violations and 8 health-based ones put Columbus Utilities at the 82th percentile nationally for violation burden, rank 2,336 of 12,903.
Against the WI average
Columbus Utilities's 8 health-based violations sit above the WI average of 5.4, across 259 systems statewide. The clean-record guide covers what a comparison like this can hide.
Most recent violation on record
Columbus Utilities's most recent violation on record is dated 2023-01-10, with the most recent health-based one dated 2019-01-10. Last reported to EPA: 05/29/2026.
The concern categories on record
Columbus Utilities's flagged contaminants and rule violations, grouped by what they actually mean for a filter choice rather than left as EPA's raw code list:
- Lead & copper - flagged from: Lead and Copper Rule
- Microbial contamination / treatment technique - flagged from: Coliform (TCR)
The most severe category on record is lead & copper, which points toward a lead-class filter if you want to address it directly.
What Columbus Utilities's record does not cover
Everything on this page is Columbus Utilities's own reported record under the Safe Drinking Water Act - a regulatory filing, not a sample of your tap. Water quality can still change between the meter and the faucet - household plumbing sits outside what a record of 61 logged violations can see. The guide to what this data misses covers that gap.