TY - RPRT TI - Determining age and vertical contribution of ground water pumped from wells in a small coastal river basin: a case study in the Sweetwater River valley, San Diego county, California AU - Wesley R. Danskin AU - Clinton D. Church PY - 2005 DO - 10.3133/ofr20051032 UR - https://pubs.usgs.gov/publication/ofr20051032 ID - ofr20051032 ER -