TY - RPRT TI - Vulnerability of drinking-water wells in La Crosse, Wisconsin, to enteric-virus contamination from surface water contributions AU - M. A. Borchardt AU - N.L. Haas AU - R. J. Hunt PY - 2004 DO - 10.1128/aem.70.10.5937-5946.2004 UR - https://pubs.usgs.gov/publication/70026525 ID - 70026525 ER -