ARCHIVED REPORTS RESPONSE TO COMMENTS BIOTREATMENT BEDS POST REMEDIATION INVESTIGATION REPORT

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' TPH-D-2200,out -(version-2.2a,-1996) ---------I ------------------- ----------------V'CPACH (Version 2.2a, 1996) I 1 I Varadhan Ravi and 3effrey A. Johnson I (USEPA contractors) ' I Center for Subsurface Modeling support Robert S. Kerr Environmental Research Laboratory U.S. Environmental Protection Agency P.O. Box 1198 Ada, OK 74820 I hBased on the original VLEACH (version 1.0) I developed by CH2M Hill , Redding, California for USEPA Region IX -------------- -------------------------- ----------------I UPRR Tracy Maint Intial cont = 2,200 mg/kg tWARNING M At time = 0.00, aqueous solubility was exceeded in 20 cells. Polygon 1 - At time 0.00, total mass in vadose zone = 194.56 g/sq.ft. Mass in gas phase 0.29605 g/sq.ft. Mass in liquid phase = 0.53695 g/sq.ft. Mass sorbed - 193.72 g/sq.ft. WARNING M At time = 0.05, aqueous solubility was exceeded in 20 cells. ' WARNINGS ! ! At time = 0,10, aqueous solubility was exceeded in 20 cells. WARNINGIII At time = 0.15, aqueous solubility was exceeded in 20 cells. WARNING M At time = 0.20, aqueous solubility was exceeded in 2Q cells. WARNING M At time = 0.25, aqueous solubility was exceeded in 20 cells. WARNING M At time = 0.30, aqueous solubility was exceeded in 20 cells. WA RNIIVGIfI At time = 0.35, aqueous solubility was exceeded in 20 cells. WARNING M At time = 0.40, aqueous solubility was exceeded in 20 cells. WARNING M At time = 0.45, aqueous solubility was exceeded in 20 cells. ' WARNINGIII At time = 0.50, aqueous solubility was exceeded in 20 cells. Polygon 1 At time = 0.50, total mass in vadose zone = 191.91 g/sq.ft. Mass in ggas phase 0.29201 g/sq.ft. Mass in li uid phase - 0191963 g/ sq. ft. Mass sorbed - ' since last printout at time = 0.00 change in Total Mass = -2.6503 g/sq,ft. Advection in from atmosphere = 0.0000 g/sq.ft. Advection in from water table = -0.67365E-06g/sq.ft, Diffusion in from atmosphere = -2.4941 g/sq.ft. Diffusion in from water table = -0.15628 g/sq•ft. Total inflow at boundariies64850E-042/sq©ft, g/sq.ft. Mass discrepancy = ' Since beginning of run at time = 0.0 change in Total Mass = -2.6503 9/sq.f0 Advection in from atmosphere = 0,0000 g/sq.ft. Advection in from water table = -0.67365E-06g/sq•ft. Diffusion in from atmosphere = -2.4941 g/sq,ft. Diffusion in from water table = -0.15628 g/sq.ft. Total inflow at boundaries = -2.6504 g/sq.ft. Mass discrepancy = 0.64850E-04g/sq.ft• tWARNING M At time = 0.55, aqueous solubility was exceeded in 20 cells. Page 1