TY - RPRT TI - Age dating ground water by use of chlorofluorocarbons (CCl3F and CCl2F2), and distribution of chlorofluorocarbons in the unsaturated zone, Snake River Plain Aquifer, Idaho National Engineering Laboratory, Idaho AU - Eurybiades Busenberg AU - E.P. Weeks AU - Niel Plummer AU - R. C. Bartholomay PY - 1993 DO - 10.3133/wri934054 UR - https://pubs.usgs.gov/publication/wri934054 ID - wri934054 ER -