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The Clark County Public Health Laboratory provides convenient, reliable, and reasonably priced water testing services to the citizens of Clark County, with the goal of safer water supplies. The lab is also involved in monitoring public drinking water supplies for facilities included in our Department of Natural Resources (DNR) transient non-community water (TNC) systems program.

Clean, safe drinking water is one of the most important elements of good health. Testing well water on an annual basis is one of the easiest things a private well owner can do to take care of their health and the health of their loved ones. It’s estimated that 20-25% of Wisconsin wells have bacterial contamination, so Clark County Health Department advises all private well owners to have their well water tested for coliform bacteria and nitrates. If there are infants under six months of age or women of childbearing age drinking the water, it should also be tested for fluoride.

How do I test my private well drinking water? How often do I need to test?
To test your private well water, obtain a water sample bottle, instructions, and a lab submission form from the Clark County Health Department.  Results will be ready within 24 hours.  Most Wisconsin wells provide safe water.  However, bacterial and chemical contaminants can pollute ground water in a variety of ways.  Common tests include coliform bacteria, nitrates, and fluoride.  Every private well should be tested annually and whenever there are changes in taste, color, odor or appearance.  Contact Clark County Health Department to find more information by calling (715)743-5112. At this time, The CCHD ONLY offers bacteria testing.

If you would like more information or have questions about water testing, please contact Paige Lindner by calling 715-743-5112.

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To report a public health emergency or communicable disease after hours, please contact Clark County Dispatch at (715) 743-3157.

Our office is closed on significant holidays & days of recognition. Please click here for more information.  

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