TY - RPRT TI - Sources and risk factors for nitrate, pathogens, and fecal contamination of private wells in rural southwestern Wisconsin, USA AU - Joel P. Stokdyk AU - Aaron D. Firnstahl AU - Kenneth Bradbury AU - Maureen A. Muldoon AU - Burney Kieke Jr. AU - Mark A. Borchardt PY - 2025 DO - 10.1016/j.watres.2025.123202 UR - https://pubs.usgs.gov/publication/70264061 ID - 70264061 ER -