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s � W <br /> RSCA Tool KA for Chemical Releases,Version 1.0a <br /> RBCA SITE ASSESSMENT <br /> 1OF7 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> .. :':>.......:: ... . .:.. HEGi��W PATF:4�lA�W I�A+I<'1��'�. ::: .....:: . <br /> SURFACE SOILS(530-530 cm): <br /> VAPOR INHALATION 1)Source Medium 2)NAF Value(mA31kg) 3)Exposure Medium <br /> Receptor Outdoor Air: POE Conn. (mg1mA3) (1)1(2) <br /> Off-site 1 Off-site 2 Off-site 1 Off-site 2 <br /> Soil Conc. On-site(0 cm) (0 cm) (0 cm) On-site(0 cm) (0 cm) (0 cm) <br /> (mWkg) iaNone None Commercial Construction Construction None None <br /> Constituents of Concern Commercial Worker Worker <br /> Xylene mbred isomers 9.0E+1 <br /> Toluene 6.3E-1 <br /> E#iy1benzene 2.2E+1 <br /> Benzene" 6.3E-1 Ell <br /> NOTE: NAF=Natural attenuation factor POE=Point of exposure <br /> Site Name:Former Valley Volkswagen Date Completed:30-Nov-99 <br /> Site Location:647 E.Miner,Stockton,CA Job ID: 95-015 <br /> Completed By:GPS <br />