MICROBIAL CONTAMINATION OF PRIVATE WELLS IN THE DOLOMITE AQUIFER IN NORTHEASTERN WISCONSIN: ASSOCIATIONS WITH LAND USE, HYDROGEOLOGY, AND WELL CONSTRUCTION

Groundwater quality in the fractured dolomite aquifer in northeastern Wisconsin has become a contentious issue as dairy farms and exurban development expand. We investigated the extent and source of microbial contamination of private household wells open to the dolomite aquifer located in Kewaunee County, Wisconsin and evaluated factors related to contamination. Total coliforms, E. coli, and nitrate were evaluated by synoptic sampling during...