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1 <br /> Groundwater isso ve g <br /> Plume Location Contour Value Total, Mass <br /> (pg/L) (FY (lbs) <br /> (MongomeryWard's site Unit A/B 100 21,7 2.3 <br /> = 2.3 Pounds <br /> Groundwater ^ Dissolved Benzene <br /> Plume Location Contour Value Total, Mass <br /> (pg/L) (Ft (lbs) <br /> (Mongomery Ward's site Unit A/B) 10 4,6, 0.01 <br /> 1 11 c 0.03 <br /> ' - 0.01 Pounds <br /> Grounc <br /> Groundwater Mear <br /> Plume Location Contour Value Concen <br /> (pg/L) (pg <br /> (Mongomery Ward's site Unit A/B) 100 1C <br /> Grounc <br /> PGroundwater Mew <br /> Plume Location <br /> Contour Value Concer <br /> ' (pg/L) (pg <br /> (Mongomery Ward's site Unit A/B) 10 <br /> Soil Concentration (pg/kg)=Fes'Kms'Cgw <br /> where, ction referenced from <br /> F�=Organic Carbon fraction estimated as 0.02 1 nrcs.usda.gov/apt)/WebSoilSurvey.aspx <br /> K�=Organic carbon partitioning coefficient(Ukg) tection Agency, Soil Screening Guidance. Technical <br /> K.value of 363 for used TPI-Ig and 59 used for Benzene 2 'nt, Pp. C-1 <br /> ' Cgw=Dissolved phase concentration(pg/L) )erripage/superfund/health/conmediatsoil/!ntrotbd.htm <br /> Volume of Groundwater=Total Volume x Porosity(rl) nixture of compounds,the Ka value of ethylbenzene is used to <br /> e. <br /> Soil Masss(kg)=volume soil <br /> Volume Soil Solids= x Total Volume d from hftp://web.ead.anl.gov/msrad/datacolVporosity htm <br /> soil((L)x yd(kg/L) <br /> Dissolved TPHg= Mean log Concentration x Volume of Groundwa'ferenced from <br /> Contaminant Mass(lbs)=contaminant mass(pg)x 2.205X 10-1(Ivre.com/resources/buikdensitvttriangle us cfm?274 293 <br /> 60146576 AECOM <br />