Our Focus is on Testing and Analysis of Drinking Water

There are many commercial testing laboratories throughout the country. However, they pride themselves in being multi-disciplined, meaning they test soil, wastewater, food, pharmaceuticals, etc. At Water Diagnostics, we focus on drinking water testing and analysis. You can be confident we understand water, water quality, and water chemistry. Water Diagnostics has the resources for testing your water with the most advanced instrumentation available on the market.


Full Service, Wisconsin State Certified, Water Testing Laboratory

Water Diagnostics is certified with the State of Wisconsin Department of Agriculture, Trade, & Consumer Protection (DATCP) and the Environmental Protection Agency (EPA).


Water Analysis for Homes, Businesses, and Government

Water Diagnostics is an all-inclusive testing laboratory for private well owners, public water systems (pws), pump installers, and everyone who is required to test the quality of drinking water, and anyone who is concerned about the quality of their drinking water.


Professional Service

We offer reliable, convenient, prompt service with important added value:

  • Fast Turn Around Times
  • Affordable Prices
  • Individual Attention
  • Accurate and Reliable Analysis
  • Understandable Results
  • Local Wisconsin Presence

Water Diagnostics supplies all necessary bottles, labels, and forms. Results of the tests can be faxed, e-mailed, mailed -- whichever you prefer. Water test results can be electronically submitted directly to the Wisconsin DNR.

Serving Ozaukee County And Wisconsin

Water Diagnostics believes the best water testing will be done by a local, trusted business with the attention to service that only a neighbor can give. We serve all of Wisconsin, but primarily Ozaukee County and these communities:

  • Village of Bayside
  • Village of Belgium
  • Town of Belgium
  • City of Cedarburg
  • Town of Cedarburg
  • Village of Fredonia
  • Town of Fredonia
  • Village of Grafton
  • Town of Grafton
  • City of Mequon
  • Village of Newburg
  • City of Port Washington
  • Town of Port Washington
  • Village of Saukville
  • Town of Saukville
  • Village of Thiensville

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.


© Water Diagnostics, LLC.