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S <br /> ` ATTACHMENT'4 <br /> 1 FWMAN HEALTH:SGYtEE11ING 1J ALUA.`IYDIY' <br /> 1'O1Vt110 PROPERTY. <br /> 1155 WEST 11TH STREET,{TRAC.Y,.,CALIFORNIA <br /> PROJECT#,1243 001 <br /> `95.%UCL,GROUNI)W TER POTA$I E', . <br /> EFFECTIVE DIFFUSION:COE]E!FICIENTIN SOIL <br /> Chemical' <br /> Diffusivitylit Air. Effective: <br /> (Di) ' Diffusivity <br /> Benzene, 0.088 ?.0E=03: <br /> Ethyibenzerie:r 0:075. .&0 `03 .. <br /> Toluene 0.078 G2E-,03 <br /> X lenes,,Tota4: 0.087 TOE-03 <br /> A'cena' hthene. 0.064 5:1E 03' <br /> z Benzo(,ajan"thracene 0.051 4:1E-03` <br /> Chrysene.. b.025 2 0E=0 : <br /> F`luorantlietie, . 0.0302 2: E 03: ; <br /> Fluarene 0.061.. 4.9E-03. <br /> j Na hthalene 0.069 5.5E 03 <br /> Ptfcnanthre'ne,;. <br /> P." renes: 0.022'.: 22E-03 <br /> D« =effective d'i.ffustxlty'ofcompound,cryMe'c <br /> 333 ,2y': <br /> J. <br /> Parameter ;Symbol <br /> Air-Filled-Soil.Porosity Pa <br /> Total Soil PoroM Pt`... <br /> { <br /> F <br /> i Y <br /> 1 pornbo_based'on UCLs1D6 Pigc 7 of 18 <br />