02227oam 2200637 450 991070972800332120180711074108.0(CKB)5470000002472969(OCoLC)885364960(OCoLC)896811308(OCoLC)995470000002472969(EXLCZ)99547000000247296920140806d1992 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierHydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States /by H.L. Young ; with a section on ground-water quality by D.I. SiegelWashington :U.S. Department of the Interior, U.S. Geological Survey,1992.1 online resource (vii, B99 pages) illustrations (some color), maps (some color) +1 plateU.S. Geological Survey professional paper ;1405-BRegional aquifer-system analysis--northern MidwestIncludes bibliographical references (pages B93-B99).GroundwaterMiddle WestAquifersMiddle WestGeology, StratigraphicCambrianGeology, StratigraphicOrdovicianAquifersfastCambrian Geologic PeriodfastGeology, StratigraphicfastGroundwaterfastOrdovician Geologic PeriodfastMiddle WestfastGroundwaterAquifersGeology, StratigraphicGeology, StratigraphicAquifers.Cambrian Geologic Period.Geology, Stratigraphic.Groundwater.Ordovician Geologic Period.Young H. L.1394857Siegel Donald I.Geological Survey (U.S.),WAUWAUWAUCOPOCLCQOCLCAGPOBOOK9910709728003321Hydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States3452688UNINA