01620nam 2200373Ka 450 991069185690332120080818150048.0(CKB)5470000002348834(OCoLC)244008015(EXLCZ)99547000000234883420080818d2002 ua 0engtxtrdacontentcrdamediacrrdacarrierDelineation of the Troy Bedrock Valley and particle-tracking analysis of ground-water flow underlying Belvidere, Illinois[electronic resource] /by P.C. Mills, K.J. Halford, and R.P. Cobb ; in cooperation with the Illinois Environmental Protection Agency, U.S. Environmental Protection AgencyUrbana, Ill. :U.S. Dept. of the Interior, U.S. Geological Survey,2002.v, 46 pages digital, PDF fileWater-resources investigations report ;02-4062Title from title screen (viewed Aug. 18, 2008).Groundwater flowIllinoisBelvidereMathematical modelsGroundwater flowMathematical models.Mills Patrick C20443Halford Keith J1387248Cobb R. P1399376Illinois.Environmental Protection Agency.United States.Environmental Protection Agency.Geological Survey (U.S.)GPOGPOBOOK9910691856903321Delineation of the Troy Bedrock Valley and particle-tracking analysis of ground-water flow underlying Belvidere, Illinois3464488UNINA