TY - RPRT TI - Use of real-time sensors to temporally characterize water quality in groundwater and surface water in Mason County, Illinois, 2017–19 AU - Lance R. Gruhn AU - William S. Morrow PY - 2020 DO - 10.3133/sir20205108 UR - https://pubs.usgs.gov/publication/sir20205108 ID - sir20205108 ER -