TY - RPRT TI - Hydrologic and water-quality conditions in the Cedar River alluvial aquifer, Linn County, Iowa, 1990–2019 AU - Stephen J. Kalkhoff PY - 2021 DO - 10.3133/sir20215110 UR - https://pubs.usgs.gov/publication/sir20215110 ID - sir20215110 ER -