Most people living in rural areas rely on private wells to supply their drinking water needs. While
public and municipal wells are regulated to ensure water quality meets current drinking water
standards, private well owners must assume the responsibility of testing and treating water to
ensure it is safe to drink. Groundwater specialists strongly encourage rural residents to test their
water annually for bacteria and nitrate.
The Extension Green County office, in partnership with the townships in Green County,
coordinates an annual drinking water testing program. These tests are solely for educational
purposes and do not have any regulatory component. Individual testing results are not reported
to any regulatory agency.
Following the drinking water testing program, Extension Green County hosts an educational program on drinking water quality. Households that test their drinking water as part of this program may ask questions about their specific test results. This program is open to anyone interested in learning about drinking water quality. Extension water quality experts will discuss how to protect your drinking water, how to get your water tested, interpret water test results and address unsafe drinking water, as well as provide information about water construction, maintenance, and abandonment.
I want to test my water but missed the May 2022 annual drinking water testing program. What should I do?
If you want to test your water in 2022 and were unable to participate during the 2022 annual drinking water testing program, you can get test kits through the Green County Health Department. Check out their website for water testing for more information.
Even if your tests are taken through another program, you can contact Victoria Solomon with Extension Green County or Kevin Masarik with the Center for Watershed Science and Education with questions about understanding test results and options for managing your drinking water
How to Request a Copy of a DNR Well Constructor’s Report
There are a number of resources available from the Wisconsin Department of Natural Resources (DNR) on well construction reports. These resources are available online: WIsconsin DNR-Information for Private Well Owners and please note this is for private well owners only.
Care and Maintenance of Residential Septic Systems
The Care and Maintenance of Residential Septic Systems document is helpful in understanding residential septic systems and how to properly maintain them.
Wisconsin Well Construction Reports
For an online database of well construction reports in Wisconsin, view the Wisconsin Well Construction Reports.
You and Your Well
This You and Your Well publication by the Wisconsin Department of Natural Resources provides information about well construction in Wisconsin. It is helpful for people who are considering building a new home or replacing or upgrading an existing water supply.
Check out these documents for information on how to improve your private well water quality:
The following aggregated test results from the annual drinking water testing programs are below. Individual well results are not shared with anyone other than the well owner.
- Results: Spring 2022 (Brooklyn and Mt Pleasant)
- Slides 2022 Groundwater and Drinking Water Education Program
- Education Program Video: 2022 Green County Groundwater and Drinking Water Education Program
- Results: Spring 2021 (Adams, New Glarus, Washington, and York)
- Slides: 2021 Groundwater and Drinking Water Education Program
- Education Program Video: 2021 Green County Groundwater and Drinking Water Education Program
- Results: Spring 2020 (Cadiz, Jordan, and Monroe)
- Slides: Groundwater and Drinking Water Education Program
- Education Program Video: 2020 Green County Groundwater and Drinking Water Education Program
- Results: Spring (Decatur, Jefferson, Spring Grove, and Sylvester)
- 2018 Groundwater and Drinking Water Education Program
- Results: Summer (Albany, Brooklyn, Mt. Pleasant, and New Glarus
- 2017 Groundwater and Drinking Water Education Program
- Results: Fall (Cadiz, Clarno, Jordan, Monroe)
- 2015 Groundwater and Drinking Water Education Presentation