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Posted on: February 4, 2019

Calumet County to Host Groundwater Education Series


Update: The scheduled talk, “An Introduction to Groundwater, Private Wells, and Calumet County Well Data” has been rescheduled for Wednesday, February 13 at 7:00 p.m. at the Engler Center in Chilton. It was originally postponed because of severe weather.

RSVP here:


Private wells are the primary water source for approximately 4,000 homes, businesses and farms in the County.  Private well data indicate that 32% of wells exceed safe drinking water standards for coliform bacteria or nitrate; closer to 40% unsafe in karst areas of Calumet County.  Calumet County Land and Water Conservation will host an education series to help private well owners understand groundwater quality, private well maintenance, well test recommendations, and local challenges ensuring a safe drinking water supply to the home. 

The first in the series will be held Februrary 13, 2019 and focus on an introduction to groundwater, local geology and the private well sampling program in Calumet County.  A discussion of the different challenges of the karst areas, lakeshore, and sandstone aquifers will also be discussed. 

On February 27, microbiologist Mark Borchardt will speak on the pathogen research he and colleagues conducted in Kewaunee County on private wells and discuss risk levels to public health from exposure to pathogens found in private drinking water supplies, as well as the sources of those pathogens found in Kewaunee Co. wells.

And on April 30, results from the County’s annual Group Testing Event will be presented, where samples from approximately 200 wells are drawn on the same day.  The group testing event is scheduled for March 25. 

If you are interested in attending one of these sessions, please RSVP online at or contact Dani Santry at 920-849-1493 x2402.  Specific dates & times are listed below.

  • February 13:  An Introduction to Groundwater, Private Wells, and Calumet County Well Data.
    Presented by Dani Santry, Calumet County Water Resource Specialist; 7:00pm, Engler Center at Chilton High School

  • February 27:  Cows or People? Fecal Sources and Risk Factors Associated with Private Well Contamination in Northeast Wisconsin.
    Guest Speaker:  Mark Borchardt, Microbiologist USDA-Agriculuture Research Services. 7:00pm, Engler Center at Chilton High School

  • April 30:  Well Test Results from March 26th Group Testing Program
    7:00pm, Calumet County Courthouse, Room 025

Contact Information:
Danielle Santry
Calumet County Land & Water Conservation
920.849.1493 ext 2402

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Calumet County Government
206 Court Street
Chilton, WI 53014

Main Offices
(920) 849-2361
(833) 620-2730
8 a.m. to 4:30 p.m. M-F