Sauk County Drinking Water Testing Program

Townships of Dellona, Delton and Fairfield Drinking Water Testing Program

Sauk County Drinking Water Program

Sponsored by Local Town Boards, Sauk County UW-Extension and the Conservation, Planning & Zoning Department.

The luxury of quality drinking water is something that many of us commonly take for granted. Municipal and other public water supplies are subject to strict guidelines and water quality testing to ensure that the water meets the current drinking water standards and is safe to drink. However, there are over 800,000 private wells which serve as the primary water supply for a large number of people throughout the state. Drinking water can be contaminated from a variety of sources, and most water pollutants cannot be easily detected by taste or smell. Getting your water tested annually is the best way to determine if your drinking water has been contaminated by chemicals or bacteria.

In a recent survey conducted by UW-Stevens Point, 73% of survey respondents had not tested their drinking water in the last five years, 57% did not know the depth of their well, and 66% did not know the depth to water in their wells. The Sauk County drinking water program provides a convenient opportunity to test your drinking water and learn about the issues facing well water in Sauk County. Water Sampling Procedures

Residents living in the townships of Dellona, Delton and Fairfield will have an opportunity to participate in a Drinking Water Program in the summer of 2022. Participants will learn about their drinking water quality and quantity, and what actions they should take to protect Sauk County’s groundwater. If you are a homeowner with a private well, it is important that you get your water tested once a year. Groundwater is constantly moving, so a water sample taken today may have different results than a sample taken a year ago. GET INVOLVED and find out what you and your family are drinking.


  • Pick up a water bottle at your Town Hall on Friday, August 19th, 2022, from 4:00-6:00 PM or Saturday, August 20th from 8:00-11:00 AM.
  • Pay your testing fees when you pick up the bottle. Please make your checks out to Sauk County UW-Extension.
    SPECIAL NOTE:  If you purchase all three tests, there is a reduced price of $146.
  • Fill your water bottle on Monday, August 22nd– NOT BEFORE and keep it refrigerated!
  • Return your water bottle to your Town Hall on Monday, August 22nd from either 7:00-9:00 AM or 4:00-7:00 PM.
  • Water test results will be returned and discussed at an educational program on Tuesday, September 27, 2022 in room B24 of the Sauk County West Square Building, located at 505 Broadway in Baraboo. Registration begins at 5:30 PM; the program will start at 6:00 PM and conclude by 7:30 PM.

What Tests are Available?            

Homeowner Package includes tests for nitrate, coliform bacteria, pH, alkalinity, hardness, conductivity, corrosivity, and chloride  $60
DACT Screen tests for triazine-type pesticides like atrazine. $35
The Metals Package tests for copper, lead, iron, manganese, zinc, potassium, sodium, calcium, and magnesium $57
All three tests listed above as a package deal $146 Save $6


In 2021, 87 households in the Towns of Honey Creek, Troy and Prairie du Sac chose to participate in the well water testing program. Kevin Masarik’s 2021 presentation is here presentation is here.

In 2020, 155 households in the Towns of Bear Creek, Franklin, Spring Green and Washington chose to participate in the well water testing program. Kevin Masarik’s 2020 presentation is here.

In 2019, 154 households in the Towns of Ironton,  chose to participate in the well water testing program. Kevin Masarik’s 2019 presentation is here.

In 2018, 119 households in the Towns of Greenfield, Merrimac and Sumpter chose to participate in the well water testing program. Kevin Masarik’s 2018 presentation is here.

In 2017, 81 households in the Towns of Freedom, Reedsburg and Westfield chose to participate in the well water testing program. Kevin Masarik’s 2017 presentation is here.

In 2016, 129 households in the Towns of Baraboo, Delton and Fairfield chose to participate in the well water testing program. Kevin Masarik’s presentation is here.


More information can be found at the Central Wisconsin Gro undwater Center.


UW Extension and Wisconsin DNR
Drinking Water Publications
(available as PDF files)
Do Deeper Wells Mean Better Water? G3652
Evaluating the Condition of Your Private Water Supply G3558-2
Interpreting Drinking Water Test Results G3558-4
Choosing a Water Treatment Device G3558-5
Maintaining Your Home Well Water System G3399
Nitrate in Wisconsin Groundwater: Sources and Concerns G3054
Tests for Drinking Water for Private Wells WDNR Publication
You and Your Well WDNR Publication


For more information please contact:

Morgan McArthur
Sauk County – UW Extension
West Square Administration Bldg
505 Broadway, Baraboo, WI 53913-2404

Phone: 608-355-3250
Fax: 608-355-3550


Rock Springs Artesian Well Test Results (477 KB)


UW Stevens Point Water Testing Lab

Wisconsin Well Water Viewer