The UW-Oshkosh team studying water quality in Door County will be checking for known issues in the area, including agricultural runoff and elevated bacteria levels due to karst rock’s susceptibility to contamination. Professor Greg Kleinheinz says it is also the first chance to look into problems that have cropped up in other parts of the state in recent years.

PFAS are a common material in household items, but their use in firefighting foam has been the main contributor to pollution conerns, including in Marinette across the Bay of Green Bay.