Wisconsin Certified Water Testing Laboratory

Water Diagnostics LLC is certified with the Wisconsin Department of Agriculture, Trade, & Consumer Protection (DATCP). Our Laboratory Certification Number is 195419-D3, and our Laboratory Number is #105-461. This certification is pursuant to Wisconsin Statute 93.12.

As a Wisconsin certified laboratory, Water Diagnostics LLC is approved for water testing by well drillers and pump installers when collecting water samples to meet the requirements of Chapter NR 812 of the Wisconsin Administrative Code (samples collected after well drilling or pump installing). We automatically report test results to DNR on DNR forms for water samples collected by well drillers and pump installers or their agent.






Environmental Protection Agency (EPA) Certified Laboratory

Water Diagnostics LLC is certified by the US Environmental Protection Agency (EPA) with Laboratory ID WI01119.



Water Diagnostics LLC is a Wisconsin state certified water testing laboratory that is focused on the analysis of drinking water, including private wells and public water systems. Water Diagnostics is located in Mequon, Wisconsin with a Service Center in Saukville, Wisconsin, and serves homeowners, businesses, and government agencies throughout Wisconsin including Milwaukee County, Waukesha County, Ozaukee County, Sheboygan County, Fond du Lac County, and Washington County. We have strong local presence in southeastern Wisconsin including the communties of Milwaukee, Waukesha, Racine, West Allis, Wauwatosa, Cudahy, Whitefish Bay, Mequon, Shorewood, South Milwaukee, Oak Creek, Franklin, Greendale, River Hills, West Bend, Hartland, Glendale, Greenfield, Pewaukee, Brookfield, Delafield, Mukwonago, Fond du Lac, Sheboygan, Port Washington, Saukville, Juneau, Menomonee Falls, Cedarburg, Grafton, and Germantown.


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