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Project#002693.1401.01 BR TDD#14-09-09-11-0001 Source:Aerial photography-Digital Globe,Image Date 2008-08-01 + EC2-10 As 7TPH-( EC7As EC2-6 As TPH-d 0.5 1.2 mg/kg 0.5 0.75 mg/kg 0. g2.5 1.0 mg/kg 2.5 0.83 mg/kg 2. g5 0.88 mg/kg 5g -- 5 0.8 mg/kg 10 0.9 mg/kg 10 10 0.92 mg/kg 15 1.0 mg/kg 1515 1.1 mg/kg GW 160 ug/L GW 290 ug/L EC2-8 As " EC2-9 1,2-DCA As MTBE TPH-d TPH-g ° ° 0.5 4.4 mg/kg 0.5 0.81 mg/kg 2.5 0.86 mg/kg 2.5 1.3 mg/kg ° °O 3 0.67 mg/kg 5 1.0 mg/kg ° �Q 10 0.83 mg/kg 10 0.82 mg/kg 15 0.69 mg/kg 15 0.74 mg/kg EC2-7 As TPH-d GW 0.0049 mg/L 0.084 mg/L 510 ug/L 170 uq/L 0.5 2.4 mg/kg 110 mg/kg EC2-2 As TPH-d �' 2.5 2.2 mg/kg 5 1.2 mg/kg f.4 0.5 1.5 mg/kg - 10 0.86 mg/kg 2.5 1.4 mg/kg 15 0.94 mg/kg 5 1.0 mg/kg GW 630 ug/L 10 0.77 mg/kg a E 15 1.3 mg/kg v C2-1 As TPH-d GW 190 q/1, 0.5 1.8 mg/kg EC2-4 As TPH-d 2.5 1.5 mg/kg 5 1.1 mg/kg 0.5 1.5 mg/kg 10 2.2 mg/kg 2.5 2.8 mg/kg _ 15 1.4 mg/kg �► GW 8500 u L 5 1.0 mg/kg ug /L 0.95 mg/kg EC2-5 As TPH-d 15 1.5 mg/kg EC2-3 As GW 570 ug/L 0.5 1.6 mg/kg 0.5 1.6 mg/kg g g 2.5 2 mg/kg 2.5 0.62 mg/kg 5 0.95 mg/kg N 0 100 200 Feet 10 0.78mmmg/kg 10 0.66 15 1.3 mg/kg 15 1.2 mg/kg g g ij�¢` GW 200 ug/L i LEGEND ABBREVIATIONS O Soil and groundwater sampling location AST Above-ground storage tank Figure 4 I Site boundary UST Under-ground storage tank Analytical Results L -- - TPH-d Total Petroleum Hydrocarbons-diesel y Analyte ft bgs feet below ground surface EI Concilio Project No. 2 Sample ID --EC2-3 As mg/kg milligrams per kilogram 1501 South Airport Way, Stockton, mg/L milligrams per Liter San Joaquin County, California 95206 0.5 1.6 mg/kg ug/L micrograms per Liter Depth in ft bgs GW Groundwater Analytical result