01682nam 2200457Ia 450 991069588670332120070625133750.0(CKB)5470000002372920(OCoLC)124065116(EXLCZ)99547000000237292020070508d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierVertical gradients in water chemistry and age in the northern High Plains Aquifer, Nebraska, 2003[electronic resource] /by P.B. McMahon, J.K. Böhlke, and C.P. CarneyReston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2007.vii, 58 pages digital, PDF fileScientific investigations reports ;2006-5294Title from title screen (viewed May 7, 2007)"National Water-Quality Assessment Program."Includes bibliographical references (pages 35-40).GroundwaterNebraskaWater chemistryNebraskaWater qualityNebraskaHigh Plains AquiferGroundwaterWater chemistryWater qualityMcMahon Peter B1387740Bohlke J. K1418802Carney C. P1421602National Water-Quality Assessment Program (U.S.)Geological Survey (U.S.)GPOGPOBOOK9910695886703321Vertical gradients in water chemistry and age in the northern High Plains Aquifer, Nebraska, 20033543356UNINA