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Table 1 <br /> Historical Soil Sample Analytical Results <br /> 7-Eleven Store#14117 <br /> 2725 Country Club Boulevard <br /> Stockton,CA <br /> Ethyl- MtBE TBA DIPS ETBE TAME <br /> Sample Date BenzenToluene benzene Xylenes TPHg 8020 8260 8260 8260 8260 8260 <br /> Number I (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Notes <br /> MW-4@15' 05/14/99 0.184 0.162 0.612 0.496 16.6 <0.5 <0.01 -- -- -- -- <br /> MW-4@20' 05/14/99 0.0184 0.0022 0.0111 0.011 0.027 0.0782 0.119 -- -- -- -- <br /> MW-4@25' 05/14/99 0.0651 0.0133 0.0688 0.425 2.41 0.0585 0.043 <br /> MW-5 11' 10/30/01 <0.005 <0.005 <0.005 <0.005 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-5 20' 10/30/01 <0.005 <0.005 <0.005 <0.005 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-6 11' 10/30/01 <0.005 <0.005 <0.005 <0.005 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-6 20' 10/30/01 <0.005 <0.005 <0.005 <0.005 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-7 11' 10/30/01 <0.005 <0.005 <0.005 <0.005 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-7 20' 10/30/01 <0.005 <0.005 <0.005 0.006 <1 -- <0.005 <0.02 <0.005 <0.005 <0.005 <br /> MW-8, 10' 08/14/03 6.2 99 73 550 4,400 -- <1.0 <5.0 <1.0 <1.0 <1.0 c <br /> MW-8, 15' 08/14/03 34 420 180 980 11,000 -- <2.5 <10 <2.5 <2.5 <2.5 c <br /> MW-8,20' 08/14/03 0.036 0.29 0.05 0.28 2.2 -- <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 c <br /> MW-8,35' 08/14/03 0.016 0.13 0.04 0.23 1.8 -- <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 c <br /> MW-8,40' 08/14/03 0.12 0.55 0.66 0.8 19 -- <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 c <br /> MW-8,45' 08/14/03 0.023 0.18 0.067 0.38 3.1 -- <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 c <br /> MW-8,50' 08/14/03 <0.0050 <0.0050 <0.0050 0.0087 <0.0050 -- <0.0050 <0.0050 <0.0050 <0.0050 <0.0050 c <br /> Explanation Notes <br /> mg/kg=milligrams per kilogram a. Sample also analyzed for methanol (254 mg/kg) and ethanol (<10 mg/kg). <br /> = not available/not analyzed b. Samples also analyzed for total lead (<5 mg/kg) by EPA method 6010. <br /> MtBE=Methyl tert-butyl ether c. Samples analyzed by EPA Method 82608 <br /> TPHg=Total petroleum hydrocarbons-as-gasoline <br /> TBA=Tert-butanol UST= Underground storage Tank <br /> DIPE=Diisopropyl ether < = Not detected above laboratory method reporting limit <br /> EtBE=Ethyl-tert-butyl ether EPA= Environmental Protection Agency <br /> TAME=Tert-amyl-methyl ether <br /> 7-11\7-Eleven Stores\14117\Tables\14117 Historical Soil.xls Page 4 of 4 <br />