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TABLE 8 <br /> Comparison of Site-Specific Concentrations to <br /> Tier 2 Site-Specific Target Levels (SSTLs) <br /> (Cancer Risk=1 in a million Chronic HQ=1) <br /> Jackpot Food Mart <br /> 14000 East Highway 88 Lockeford,California <br /> SUBSURFACE SOILS(>5 feet bgs) <br /> Subsurface Sods Benzene Toluene Ethylbenzene Xylenes <br /> Exposure (mglkg) (mglkg) (mglkg) (mg/kg) <br /> Pathway Receptor SSTLs* SSTLs SSTLs SSTLs <br /> ON-SITE COMMERCIAL RECEPTORS <br /> inhalation of vapors commercial 1 5 RES RES RES <br /> migrating to outdoor air worker <br /> inhalation of vapors commercial 00074 83 140 RES <br /> 1migrating to indoor air worker <br /> Maximum Site Concentration 25 280 130 730 <br /> OFF-SITE RESIDENTIAL RECEPTORS <br /> inhalation of vapors residential 26 RES RES RES <br /> migrating to outdoor air <br /> inhalation of vapors residential 0 066 320 RES RES <br /> Imigrating to indoor air <br /> Maximum Site Boundary Concentration 0 064 0 005 not detected 0 007 <br /> (borings for MW-4 MW-5 MW-8 and MW-10) <br /> GROUNDWATER <br /> Groundwater Benzene Toluene Ethyl- Xylenes <br />' Exposure (ug/L) (ug/L) (ug/L) (ug/L) <br /> Pathway Receptor SSTLs* SSTLs SSTLs SSTLs <br /> ON-SITE COMMERCIAL RECEPTORS <br />' inhalation of vapors commercial 4,900 >S >S >S <br /> migrating to outdoor air worker <br /> inhalation of vapors commercial 32 130 000 >S >S <br />' migrating to indoor air worker <br /> Maximum Site Concentration 2,200 12 500 2 200 10,300 <br /> OFF-SITE RESIDENTIAL RECEPTORS <br />' inhalation of vapors residential 2 900 >S >S >S <br /> migrating to outdoor air <br /> inhalation of vapors residential 10 49 000 110 000 >S <br />' migrating to indoor air <br /> Maximum Site Boundary Concentration 388 494 100 898 <br /> (wells MW-4 MW-5 MW-8 and MW-10) <br /> Explanation <br /> BOLD=Site-specific concentration exceeds one or more SSTLs <br />' *=Benzene SSTLs have been adjusted(multiplied by 0 29)for California's 0 1 slope factor <br /> RES=Selected risk level is not exceeded for pure compound in any concentration <br /> >S=Selected risk level is higher than solubility of pure compound <br /> sstlstwo AS <br />