Groundwater Flow Model for the Geneva Lake Area, Walworth County, Wisconsin Open-file report; contains unpublished data that has not yet been peer-reviewed. Groundwater Data and Resources WOFR2009-02 Groundwater Flow Model for the Geneva Lake Area, Walworth County, Wisconsin Gotkowitz, M.B.; Carter, Jonathon; 2009 Report: 37 p. Download Related Collections Open-File Report View Open-File Report