What is Arsenic?
Arsenic is a semi-metal element in the periodic table. It is odorless and tasteless. It enters drinking water supplies from natural deposits in the earth or from agricultural and industrial practices. Winnebago County is part of the Arsenic Advisory Area in NE Wisconsin, as identified by the Wisconsin Department of Natural Resources.
Between 1990 and 2000 approximately 10,000 new wells were drilled in Winnebago and Outagamie counties. Of these, over 20% contain unhealthy levels of arsenic. Report PDF
Arsenic in Drinking Water Brochure