01767oam 2200421Ia 450 991069647690332120080227143644.0(CKB)5470000002378070(OCoLC)188954010(EXLCZ)99547000000237807020080108d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierOccurrence of agricultural chemicals in shallow ground water and the unsaturated zone, northeast Nebraska glacial till, 2002-04[electronic resource] /by Jennifer S. Stanton, Gregory V. Steele, and Jason R. Vogel ; prepared as part of the National Water-Quality Assessment ProgramReston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2007.viii, 51 pages digital, PDF fileScientific investigations report ;2007-5228Title from title screen (viewed on Feb. 15, 2008).Includes bibliographical references (pages 30-34).Agricultural chemicalsEnvironmental aspectsNebraskaGroundwaterPollutionNebraskaAgricultural chemicalsEnvironmental aspectsGroundwaterPollutionStanton Jennifer S1398793Steele G. V1395537Vogel J. R1393434National Water-Quality Assessment Program (U.S.)Geological Survey (U.S.)GISGISGPOBOOK9910696476903321Occurrence of agricultural chemicals in shallow ground water and the unsaturated zone, northeast Nebraska glacial till, 2002-043462776UNINA