Well Testing Program

The Health Department operates a State of Wisconsin Certified Water Lab for the bacterial analysis of both public and private well water supply. 

How can I tell if my well water is safe to drink?
You’ll only know if your well water is safe to drink by having it tested at a Certified Lab. Wells are generally a safe and dependable source of drinking water – but the best way to be sure is by having the well water tested annually for bacteria. For more information, see our Well Water Test brochure.

Collecting a well water sample is easy. For step-by-step instructions, read the Well Water Sampling Instructions.


Sample bottles are available for pick-up
 Monday - Friday (except for Legal Holidays)
 8:00 am to 4:30 pm

 Laboratory hours for water sample drop-off:
 Monday - Wednesday (except for Legal Holidays)
 8:00 am to 4:00 pm

Cost:  $22.00 Bacteria Test due when water specimen is dropped off. *
           $19.00 Nitrate Test due when water specimen is dropped off. *

* Prices are subject to change without notice.

 For more information about water quality and frequently asked questions, please visit the following websites:

Fond du Lac County Health Department is located at the City/County Government Center on the 3rd floor

Office Hours: 8:00am – 4:30pm Monday through Friday
Phone: 920-929-3085
Fax: 920-929-3102
Click here

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