Cattle, humans both help taint wells in Wisconsin’s Kewaunee County
In a new study of groundwater conditions in dairy farm-intensive Kewaunee County, researchers found higher levels of well contamination from cattle during wet weather events — when manure, rain and melting snow can seep quickly into the ground.
But the results also show that cattle in this northeastern county are not the only source of tainted drinking water. Human waste from sanitary systems is also polluting wells.