00635nam 2200157z- 450 9910712756503321(CKB)5470000002496607(EXLCZ)99547000000249660720230509c2001uuuu -u- -engEstimated age and source of the young fraction of ground water at the Idaho National Engineering and Environmental LaboratoryIdaho Falls, IdahoU.S. Geological SurveyBOOK9910712756503321Estimated age and source of the young fraction of ground water at the Idaho National Engineering and Environmental Laboratory3333272UNINA