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• ! i TABLE E-2.'SHALLOW SOIL GAS SCREENING LEVELS FOR EVALUATION OF POTENTIAL VAPOR INTRUSION CONCERNS (volatile chemicals only) 2'Residential Exposure Commerciallindustrial Land Use Lowest Carcinogenic Noncarcinogenic Lowest Carcinogenic Noncarcinogenic Physical Residential Effects Effects Cl1 Effects Effects CHEMICAL PARAMETER State uglm' ugW) u tm') (ugm) (ugltn' uglm) ACENAPHTHENE V S 4 4E+04 4 4E+04 1 2E+05 1 2E+05 ACENAPHTHYLENE V S 2 9E+04 2 9E+04 8 2E+04 8 2E+04 ACETONE V L 6 6E+05 6 6E+05 1 8E+06 1 8E+06 ALDRIN NVI S ANTHRACENE V I S 2 2E+05 2 2E+05 6 1 E+05 6 i E+05 ANTIMONY NVI S ARSENIC NV S BARIUM NV S BENZENE V L 8 5E+01 8 5E+01 1 2E+04 2 9E+Q2 2 9E+02 3 5E+04 BENZO(a)ANTHRACENE NV S BENZO(b)FLUORANTHENE NV 5 BENZO(k)FLUORANTHENE NV S BENZO(g h*PERYLENE NV S BENZO(a)PYRENE NV 5 BERYLLIUM NV S BIPHENYL,1 1- V S 3 7E+04 3 7E+04 1 0E+05 1 0E+05 BIS(2-CHLOROETHYL)ETHER V L 3 4E+00 3 4E+00 1 1 E+01 1 1E+01 BIS(2-CHLOROISOPROPYL)ETHER V L 2 4E+02 2 4E+02 2 9E+04 6 2E+02 8 2E+02 8 2E+04 BIS(2-ETHYLHEXYL)PHTHALATE NV S BORON NV S BROMODICHLOROMETHANE V L 6 6E+01 6 6E+01 1 5E+04 2 2E+02 2 2E+02 4 1E+04 BROMOFORM NV S BROMOMETHANE V G 1 0E+03 1 0E+03 2 9E+03 2 9E+03 CADMIUM NVI 5 CARBON TETRACHLORIDE V I L 5 7E+01 5 7E+01 8 3E+03 1 BE+02 1 9E+02 2 3E+04 CHLORDANE NVI S CHLOROANILINE p NV S CHLOROBENZENE V L 1 2E+04 1 2E+04 3 5E+04 3 5E+04 CHLOROETHANE V G 2 9E+03 2 9E+03 2 1E+06 9 9E+03 9 9E+03 5 9E+06 CHLOROFORM V L 4 5E+02 4 5E+02 1 0E+04 1 5E+03 1 5E+03 2 9E+04 CHLOROMETHANE V G 3 3E+02 3 3E+02 6 3E+04 1 1E+03 1 1E+03 1 8E+05 CHLOROPHENOL,2 V L 3 7E+03 3 7E+03 1 0E+04 1 0E+04 CHROMIUM(Total) NV S CHROMIUM III NV S CHROMIUM VI NV S CHRYSENE NVI 5 COBALT NVI S COPPER NVI S _LEA I INTERIM FINAL-February 2005 I SF Bay RWQCB Page 1 of 4 Table E-2 (Soil Gas to IA)