TY - RPRT TI - Water Quality of groundwater used for public supply in principal aquifers of the western United States AU - Celia Z. Rosecrans AU - MaryLynn Musgrove PY - 2020 DO - 10.3133/sir20205078 UR - https://pubs.usgs.gov/publication/sir20205078 ID - sir20205078 ER -