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SECOR <br /> Science&Engmeermg Anaiysb Corporation <br /> MEMORANDUM <br />' To: Richard Casias From: Paul Horton, R.G. <br /> RE: CRC-Major Mart Report Appendix F <br /> Fate and Transport Model Parameters Date: September 23, 1994 <br /> 1 N0026-001-01 Task 005 Updated 11/94 <br />' These equations and the accompanying text form the calculated bans of our evaluation of benzene fate and <br /> transport at the Mayor Mart site <br /> Aquifer Parameters <br /> 1 <br /> kv 0 3 ft/day (lab testing) = vertical hydraulic conductivity <br />' kH 3 ft/day (estimate) = horizontal hydraulic conductivity <br /> 100 0 40 (lab testing) = porosity <br /> dh/dl 0 001 - 0 006 (field data, variable direction) = hydraulic gradient <br /> sg 2 6 (lab testing) = specific gravity <br /> IModel Parameters <br /> Rf _ 10 + (pB/0 x K. = calculated retardation factor <br /> IWhere the variables <br /> PB = dry bulk density (g/cm3) = 101 lbs/cu ft = 162 g/cm3 <br /> 0 total porosity = 0 40 (lab testing) <br /> Kv — partition coefficient <br /> IAnd K, is defined to be <br /> Kp = Koc x foc <br /> PP OJECT/NO26M4 MEM SECOR 1 CONCORD <br />