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Is Slinger, WI tap water safe?

Slinger Water Utility serves Slinger, by EPA’s records. Here is what EPA’s and Wisconsin’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Slinger Water Utility serves Slinger. In EPA’s and Wisconsin’s records it has 2 results above the health goal, and 1 health-based violation since 2016.

The worst: Lead at 3.1 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.

The water from Slinger Water Utility is very hard, typically 485 mg/L (28.4 grains per gallon). How Wisconsin’s water compares.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

What handles it

Each of these is certified, on a certifier’s listing, for a result above a line in Slinger Water Utility’s water.

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Every claim, and more filters, in the full report

Water testing near Slinger

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 Slinger, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • C & C Pumps LLC

    Hartford, WI · about 5 miles

    Certified for bacteria

    (262) 224-5576

  • Water Diagnostics Laboratories

    Mequon, WI · about 14 miles

    Certified for bacteria, nitrate

    (414) 350-1100

  • Waukesha Co Dept of Parks & Land Use – DEH

    Waukesha, WI · about 20 miles

    Certified for bacteria, nitrate

    (262) 896-8300

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 Slinger

Which ZIP codes are in Slinger: 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 Slinger

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

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