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M Imbm M M M M M M <br /> RBCA Tool Kit for Chemical Releases,Version 1.0a <br /> RBCA SITE ASSESSMENT <br /> 1OF7 <br /> TIER 2 EXPOSURE CONCENTRATION AND INTAKE CALCULATION <br /> .. ............. <br /> .................. <br /> ...................... ...... <br /> ...................... ... ............ <br /> SURFACE SOILS(530-530 cm): <br /> VAPOR INHALATION 1)Source Medium 2)NAF Value waft) 3)Exposure Medium <br /> Receptor Outdoor Air: POE Conc. (mg/m13) (1) (2) <br /> On-she(0 cm) Off-she I Off-sits 2 On-sb(0 cm) Off-Site 1 Off-site 2 <br /> Soil Conc. (0 cm) (0 cm) (0 cm) (0 cm) <br /> (Mgft) Residential Construction None None Residential Construction None None <br /> Constituents of Concern Worker worker <br /> Xylene(mixed isomers) 9.0E+1 <br /> Toluene 6.3E-1 <br /> Ethylbenzene 2.2E+1 <br /> Benzene* 6.3E-1 <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 />