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TABLE E-2,1SHALLOW SOIL GAS SCREENING LEVELS <br /> FOR EVALUATION OF POTENTIAL VAPOR INTRUSION CONCERNS <br /> (volatile chemicals only) <br /> =Residential Exposure Commerclalllndustrlal Land Use <br /> Lowest Carcinogenic Nonearclnogenic Lowest Carcinogenic Noncarclnagenic <br /> Physical Residential Effects Effects Cl1 Effects Effects <br /> CHEMICAL PARAMETER State (u !m) uglm') (uglrn) (u !m) NOW) (uglm' <br /> CYANIDE(Free) NV S <br /> DISENZO(a h)ANTHTRACENE NV S <br /> D13ROMOCHLOROMETHANE V S 9 1E+01 91 E+01 1 5E+04 3 0E+02 3 OE+02 41E+04 <br /> 1 2-DIBROMO-3-CHLOROPROPANE V L 1 2E+00 1 2E+00 4 2E+01 4 1E+00 4 1E+00 1211+02 <br /> DIBROMOETHANE,1,2- V S 3 4E+01 3 4E+01 1 9E+03 1 1E+02 1 1E+02 5 3E+03 <br /> DICHLOROBENZENE,1 2- V L 4 2E+04 4 2E+04 1 2E+05 1 2E+05 <br /> DICHLOROBENZENE 13- V L 2217+04 22E+04 61E+04 61E+04 <br /> DICHLOROBENZENE 1,4- V S 21E+02 21E+02 17E+05 72E+02 72E+02 47E+05 <br /> DICHLOROSENZIDINE,3 3- NV S <br /> DICHLORODIPHENYLDICHLOROETHANE(DDD) NV S <br /> DICHLORODIPHENYLDICHLOROETHYLENE(DDE) NV S <br /> DICHLORODIPHENYLTRICHLOROETHANE(DDT) NV S <br /> DICHLOROETHANE 1 1- V L 1 5E+03 1 5E+03 1 OE+05 5 OE+03 5 OE+03 2 9E+05 <br /> DICHLOROETHANE 12- V L 1 2E+02 1 2E+02 1 OE+03 3 9E+02 3 9E+02 2 9E+03 <br /> DICHLOROETHYLENE,1 1- V L 4 2E+04 4 2E+04 1 2E+05 1 2E+05 <br /> DICHLOROETHYLENE Cis 1,2- V L 7 3E+03 7 3E+03 2 0E+04 2 pE+04 <br /> DICHLOROETHYLENE Trans 1,2 V L 1 5E+04 1 5E+04 4 1E+04 4 1E+04 <br /> DICHLOROPHENOL 2 4- NV S <br /> DICHLOROPROPANE,12- V L 2 4E+02 2 4E+02 8 017+02 7 9E+02 7 9E+02 2 2E+03 <br /> DICHLOROPROPENE 13- V L 1 5E+02 1 5E+02 1 5E+04 5 2E+02 5 2E+02 4 1E+04 <br /> DIELDRIN NV S <br /> DIETHYLPHTHALATE NV S <br /> DIMETHYLPHT14ALATE NV S <br /> DIMETHYLPHENOL 24- V S 1 5E+04 i 5E+04 41E+04 41E+04 <br /> DINITROPHENOL 2 4- NV S <br /> DINITROTOLUENE,2,4- NV S <br /> 1,4 DIOXANE NV L <br /> DIOXIN(2 3,7 8-TCDD) NV S <br /> ENDOSULFAN NV S <br /> ENDRIN NV S <br /> ETHANOL NV L 1 9E+07 3 8E+07 <br /> ETHYLBENZENE V L 4 2E+05 4 2E+05 1 2E+06 1 2E+06 <br /> FLUORANTHENE NV S <br /> FLUORENE V S 2 9E+04 2 9E+04 8 2E+04 8 2E+04 <br /> HEPTACHLOR NV 5 <br /> HEPTACHLOR EPDXIDE NV S <br /> HEXACHLOROBENZENE NV S <br /> I <br /> INTERIM FINAL- February 2005 <br /> SF Bay RWQCB Page 2 of 4 Table E-2(Soil Gas to[A) <br />