01522oam 2200385 a 450 991069211810332120040131161352.0(CKB)5470000002352257(OCoLC)54207203ocm54207203(OCoLC)995470000002352257(EXLCZ)99547000000235225720040131d2002 ua 0engurgn||||||txtrdacontentcrdamediacrrdacarrierObservations of environmental change in Grand Canyon, Arizona[electronic resource] /by Robert H. Webb, Theodore S. Melis, and Richard A. Valdez ; prepared in cooperation with Grand Canyon Monitoring and Research CenterTucson, Ariz. :U.S. Geological Survey ; Denver, CO :U.S. Geological Survey, Information Services [distributor],2002.Water-resources investigations report ;02-4080Title from title screen (viewed on Jan. 31, 2004).Includes bibliographic references.Grand Canyon (Ariz.)Environmental conditionsHistoryWebb Robert H123725Melis Theodore S1381361Valdez Richard A1381362Grand Canyon Monitoring and Research Center.Geological Survey (U.S.)GPOGPOBOOK9910692118103321Observations of environmental change in Grand Canyon, Arizona3423903UNINA01715oam 2200433 a 450 991070283190332120090710162708.0(CKB)4330000001272138(OCoLC)320121705(EXLCZ)99433000000127213820090504d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierIodine-129 in the Snake River Plain aquifer at and near the Idaho National Laboratory, Idaho, 2003 and 2007[electronic resource] /by Roy C. Barholomay ; prepared in cooperation with the U.S. Department of EnergyReston, Va. :U.S. Geological Survey,2009.vi, 28 pages digital, PDF fileScientific investigations report ;2009-5088Title from title screen (viewed May 5, 2009)."DOE/ID-22208."Includes bibliographical references (pages 24-27).IodineIsotopesEnvironmental aspectsIdahoIodineIsotopesEnvironmental aspectsIdahoSnake River Plain AquiferGroundwaterPollutionIdahoIodineIsotopesEnvironmental aspectsIodineIsotopesEnvironmental aspectsGroundwaterPollutionBartholomay Roy C1399788Geological Survey (U.S.)United States.Department of Energy.EJBEJBGPOBOOK9910702831903321Iodine-129 in the Snake River Plain aquifer at and near the Idaho National Laboratory, Idaho, 2003 and 20073479789UNINA