TY - RPRT TI - Groundwater-flow model and analysis of groundwater and surface-water interactions for the Big Sioux aquifer, Sioux Falls, South Dakota AU - Kyle W. Davis AU - William G. Eldridge AU - Joshua F. Valder AU - Kristen J. Valseth PY - 2019 DO - 10.3133/sir20195117 UR - https://pubs.usgs.gov/publication/sir20195117 ID - sir20195117 ER -