TY - RPRT TI - Arsenic in groundwater in the Grand Canyon region and an evaluation of potential pathways for arsenic contamination of groundwater from breccia pipe uranium mining AU - Fred D. Tillman AU - Kimberly R. Beisner AU - Casey J.R. Jones PY - 2023 DO - 10.1371/journal.pwat.0000109 UR - https://pubs.usgs.gov/publication/70245134 ID - 70245134 ER -