01406nam 2200349Ka 450 991069854940332120210916115108.0(CKB)4330000001220833(OCoLC)244567336(EXLCZ)99433000000122083320080828d2005 ua 0engtxtrdacontentcrdamediacrrdacarrierAge and quality of ground water and sources of nitrogen in the surficial aquifers in Pumpkin Creek Valley, Western Nebraska, 2000[electronic resource] /by G.V. Steel ... [and others] ; prepared in cooperation with the North Platte Natural Resources DistrictReston, Va. :U.S. Dept. of the Interior, U.S. Geological Survey,2005.vi, 68 pages digital, PDF fileScientific investigations report ;2005-5157Title from PDF t.p. (viewed on Aug. 28, 2008).Water qualityNebraskaWater qualitySteele G. V1395537North Platte Natural Resources District (Neb.)Geological Survey (U.S.)GPOGPOGPOBOOK9910698549403321Age and quality of ground water and sources of nitrogen in the surficial aquifers in Pumpkin Creek Valley, Western Nebraska, 20003454507UNINA