TY - RPRT TI - A multi-tracer and well-bore flow profile approach to determine occurrence, movement, and sources of perchlorate in groundwater AU - Michael T. Wright AU - John A. Izbicki AU - Bryant C. Jurgens PY - 2021 DO - 10.1016/j.apgeochem.2021.104959 UR - https://pubs.usgs.gov/publication/70226922 ID - 70226922 ER -