Private Well Testing Day

2020 Well Testing Day Update

The 2020 Private Well Testing Day is rescheduled for September 21, 2020.  Additional changes have been made to the program to improve safety during the COVID 19 pandemic.

Registration is now Closed.  If you would like to participate in future Private Well Testing Days, please sign up for our annual mailing list. A mailing will go out six weeks prior to the testing date. Registration is required.

  • Samples must be drawn on Monday, September 21.
  • Samples must be returned on Monday, September 21 at the following locations at times.
    • Calumet County Courthouse, West Entrance: 9 am - 2 pm
    • Chilton Town Hall, N4569 County BB: 6 pm - 8 pm
    • Charlestown Town Hall, N3685 County T: 6 pm - 8 pm
  • Payment is due at sample drop-off and should be made in the form of a check made out to Calumet County.  Cash and Credit Cards are not accepted.

Results will be mailed approximately 5 weeks after the event. There will be a Groundwater Results Program on October 27 at 6:30 pm. The program will be held online in a virtual meeting setting. Please check back for a link to the online meeting.


Why Participate in Calumet County Private Well Testing Day?

A private well should be sampled annually for bacteria at a minimum. This event provides the annual opportunity (and reminder) to "check up" on your home's drinking water supply. Benefits of participating include bottle pick up & drop off convenience, reduced pricing for group testing participants, and an education night held about five weeks after the event. The education night is an opportunity to learn how to read your results, as well as how to resolve any problems with your water, including plumbing, proper well maintenance, and at home-practices to improve your drinking water. 

Tests Available

  • Homeowner’s Package: $55
    • Includes: coliform bacteria, nitrates, pH, alkalinity, hardness, chlorides, conductivity, and corrosivity index
  • Metals Package: $52
    • Includes: arsenic, calcium, copper, iron, lead, magnesium, manganese, potassium, sodium, sulfate, and zinc
  • DACT Screen: $33
    • For Atrazine pesticides (only recommended if nitrates are high)
  • Group Testing Package: $132
    • All 3 above: homeowner’s package, metals package, and DACT


2019 Group Testing Results

The 2019 Groundwater Report is now available. The report highlights the results and analysis of the 2019 Group Testing Program and provides an update on overall groundwater quality in Calumet County. Calumet County Groundwater Report June 2019 (PDF)

Results by Town

For access to the presentation given at the Educational Program on April 30th, please follow the link: K. Masarik April 2019 (PDF)

Summary of Results (PDF) - Provides a breakdown of all parameters analyzed from 191 well test.

Group Testing Mailing List

2018 Group Testing Results - May 7

2018 Group Testing Table.PNG

Other Parameters Tested: Calcium, Copper, Iron, Potassium, Magnesium, Manganese, Sodium, Lead, Sulfate, Zinc, pH, Conductivity, Alkalinity, Total Hardness, Chloride, Diaminochlorotriazine (DACT

2017 Group Testing Results - March 27; June 5 (Chilton)

2017 group testing results

2016 Group Testing Results - June 5

2016 Group Testing