TY - RPRT TI - Geochemistry and age of groundwater in the Williston Basin, USA: Assessing potential effects of shale-oil production on groundwater quality AU - Peter B. McMahon AU - Joel M. Galloway AU - Andrew G. Hunt AU - Kenneth Belitz AU - Bryant C. Jurgens AU - Tyler D. Johnson PY - 2020 DO - 10.1016/j.apgeochem.2020.104833 UR - https://pubs.usgs.gov/publication/70216804 ID - 70216804 ER -