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Is Genoa City, WI tap water safe?

2 utilities serve Genoa City, by EPA’s records. Here is what EPA’s and Wisconsin’s records show for each, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

2 of the 2 utilities serving Genoa City have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Wisconsin’s records: Genoa City Waterworks and Village of Bloomfield.

Genoa City Waterworks, which serves the most people here, has 1 result above the limit’s level with no violation recorded and 3 results above the health goal. The worst: Haloacetic acids (HAA5) at 85.5 ppb, above the limit’s level, no violation. Health goals are stricter than legal limits and are not enforced.

The water from Genoa City Waterworks is very hard, typically 434 mg/L (25.4 grains per gallon). How Wisconsin’s water compares.

A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Genoa City’s ZIP codes, from EPA’s estimates.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Genoa City Waterworks’s water, which serves the most people here. Another utility’s report names what handles its own results.

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Every claim, and more filters, in the full report

Water testing near Genoa City

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Wisconsin certifies.

The 3 labs Wisconsin certifies closest to Genoa City, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Lake Geneva Utility Commission

    Lake Geneva, WI · about 6 miles

    Certified for bacteria

    (262) 248-2311 ext. 406

  • Walworth Co. Health & Human Services

    Elkhorn, WI · about 17 miles

    Certified for bacteria, nitrate

    (262) 741-3200

  • S & R Krizan Pump Service Incorporated

    Wind Lake, WI · about 20 miles

    Certified for bacteria

    (262) 895-6454

Wisconsin State Laboratory of Hygiene: Well water test kits ordered by phone and shipped free; you pay to mail the sample back, and the lab bills you after testing. Tests run from bacteria alone to a homeowner package covering bacteria, nitrate, fluoride, metals, hardness, volatile organic compounds and atrazine. Bacteria is $35, nitrate $35, lead $38, and the homeowner package $450, as of July 1, 2026. Public Environmental and Water Testing Prices, Wisconsin State Laboratory of Hygiene.

All 156 certified labs for Wisconsin

ZIP codes in Genoa City

Which ZIP codes are in Genoa City: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Wisconsin DNR and DATCP, certified and approved drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.

Near Genoa City

Other towns in Walworth County with a page of their own.

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