Town of Lanark, WI
Official Website
of the
Town of Lanark

Water Quality

Town of Lanark Nitrate/Nitrogen Screening Results

The Town of Lanark hosted a free well water screening opportunity on Saturday, November 10th and Thursday, November 15th, 2018.  Here is a report of the results.


Portage County Groundwater information

2017 Portage County Water Quality Testing Program – A two page document that explains Portage County’s evaluation of well water conducted in 2017.  Samples were obtained from over 200 private wells throughout the county to measure nitrate-nitrogen, chloride, pH, alkalinity, total hardness and conductivity..

Groundwater in Portage County – Where does it come from?  How and where does it move?

How To Test Your Drinking Water – Lanark residents reply on private wells to access water for drinking and cooking.  This file describes how often to test your water, what to test for, and where to obtain testing.


Tomorrow River Report

The State of the Tomorrow River Report examines the current status of the river by reporting on water quality, fish populations, and land uses in the river’s watershed.  The report also provides a history of human use and impacts on the river.