02431oam 2200613 450 991071689380332120210915092037.0(CKB)5470000002525244(OCoLC)681285035(OCoLC)622499728(OCoLC)667904710(OCoLC)985367149(OCoLC)995470000002525244(EXLCZ)99547000000252524420101113d1998 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierHydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, Central Nebraska, July 1995 through September 1997 /by I.M. Verstraeten, V.L. McGuire, and K.L. Heckman ; prepared in cooperation with the Upper Big Blue Natural Resources DistrictLincoln, Nebraska :U.S. Department of the Interior, U.S. Geological Survey,1998.1 online resource (v, 81 pages) illustrations, maps (some color)Water-resources investigations report ;98-4207Includes bibliographical references (pages 46-48).NitratesEnvironmental aspectsBig Blue River Watershed (Neb. and Kan.)HydrogeologyBig Blue River Watershed (Neb. and Kan.)GroundwaterPollutionBig Blue River Watershed (Neb. and Kan.)GroundwaterPollutionfastNitratesEnvironmental aspectsfastUnited StatesBig Blue River WatershedfastNitratesEnvironmental aspectsHydrogeologyGroundwaterPollutionGroundwaterPollution.NitratesEnvironmental aspects.Verstraeten I. M(Ingrid Maria),1383266McGuire Virginia L.Heckman K. L.Geological Survey (U.S.),Upper Big Blue Natural Resources District (Neb.)OCLCEOCLCEOCLCQOCLCFOCLCOOCLCQOCLCOOCLCQCOPOCLCAOCLCQGPOBOOK9910716893803321Hydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, Central Nebraska, July 1995 through September 19973472548UNINA