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DATA ENTRY SHEET <br /> Table A-1. Benzene Dataenter Worksheet <br /> CALCULATE RISK-BASED GROUNDWATER CONCENTRATION(enter'X'in"YES'box) <br /> GW-SCREEN D7sC <br /> Version 3.0;04/03 Vapor Intrusion Guidance <br /> YES Interim Final 12/04 <br /> Reset to OR <br /> Defaults CALCULATE INCREMENTAL RISKS FROM ACTUAL GROUNDWATER CONCENTRATION (last modified 1/21/05) <br /> (enter"X'in"YES"box and Initial groundwater cone.below) <br /> YES L=J <br /> ENTER ENTER <br /> Initial <br /> Chemical groundwater <br /> CAS No. cone., <br /> (numbers only, CW <br /> no dashes) (mp&) Chemical <br /> 71432 1 3.10E+02 Benzene <br /> ENTER ENTER ENTER ENTER <br /> MORE Depth <br /> & below grade Average ENTER <br /> to bottom Depth sot/ Average vapor <br /> of enclosed below grade SCS groundwater Flow rate Into bldg. <br /> space floor, to water table, soil type temperature, (Leave blank to calculate) <br /> LF Lwr directly above Ty Qp <br /> (un) (cm) water table (°C) (UM) <br /> 15 164.7444 CL 18.87 U <br /> MORE <br /> 8 <br /> ENTER ENTER <br /> Vadose zone User-defined ENTER ENTER ENTER ENTER <br /> SCS vadose zone Vadose zone Vadose zone Vadosq zone Vadose zone <br /> soil type soil vapor SCS soil dry soil total soil water-filled <br /> (used to estimate OR permeability, soil type bulk densly, pomsl <br /> porosity, <br /> soil vapor k, Lookup son re° n° v <br /> permeability) (cm) Paraoek (g/cm') unitiess (=3//cm' <br /> CL CL 1.48 0.442 0.168 <br /> MORE <br /> 2 ENTER ENTER ENTER ENTER ENTER ENTER <br /> Target Target hazard Averaging Averaging <br /> risk for quotient for time for time for Exposure Exposure <br /> carcinogens, noncamJnogens, carcinogens, noncarcinogens, duration, frequency, <br /> TR THQ AT, ATme ED EF <br /> (unitiess) (unitless) (yrs) (yrs) (yrs) (days/yr) <br /> 1.0E-08 1 70 30 30 350 <br /> Used to calculate ask-based <br /> groundwater concentration. <br /> DTSC/HERD DTSC Indoor Air Guldance <br /> Last Update:11/1/03 Unclassified Soil Screening Modelemvnmoom,aoien ooan„o Wseen ea S. TM.X1nw.,e A. <br />