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TABLE 1 ANALYTICAL RESULTS FOR TPH&VOCs Former North Edison Street Stockton,California WKA No.7345.09 EPA Method 8015M EPA Method 82608 Sample Date Sample ID Depth Sam led TPH as Isopropyl 1,3,5- tert- 1,2,4- sec- p- n- (feetbgs) p TPH-d TPH-mo Gasoline Benzene Toluene Ethylbenzene P,M-Xylene O-Xylene MTBE TBA DIPE ETBE TAME benzene n-Propylbenzene Trimethylbenzene Butylbenzene Trimethylbenzene Butylbenzene Isopropyltoluene Butylbenzene Napthalene Soil Analytical Results(mg/kg) Tank#1(Western 1,200 Gallon UST) T1-Center-6' 6 12/05/08 890 51** 360 <0.025 <0.025 <0.025 <0.05 <0.025 <0.025 <0.15 <0.025 <0.025 <0.025 0.29 0.49 <0.025 0.082 <0.025 0.33 <0.025 <0.2 0.62 T1-East-6' 6 12/05/08 240 10** 89 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.015 <0.005 <0.005 <0.005 0.10 0.068 <0.005 <0.005 <0.005 0.12 0.030 0.10 0.02 T1-West-7' 7 12/05/08 51 32 2.5 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 0.021 0.025 <0.005 <0.005 <0.005 0.014 <0.005 <0.005 <0.005 SP-1,2 Stockpile 12/05/08 52* 150 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 Tank#2(Eastern 500 Gallon UST) T2-Center-8' 8 12/05/08 47* 17** 87 <0.025 <0.025 0.036 <0.05 <0.025 <0.025 <0.15 <0.025 <0.025 <0.025 0.057 0.1 0.098 <0.025 0.24 0.071 0.16 0.10 0.19 T2-Fill Stockpile 12/05/08 36* 100 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 Tank#3(1,000 Gallon UST) T3-W-6 6 01/15/09 400 24** <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 T3-E-6 6 01/15/09 280* 32** 170 <0.025 <0.025 <0.025 <0.05 <0.025 0.032 <0.025 <0.025 <0.025 <0.025 0.043 <0.025 <0.025 <0.025 SP3-1,2 Stockpile 01/15/09 40 92 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 Tank#4(1,000 Gallon UST) T4-W-8 8 01/15/09 220* 36** 180 0.052 0.10 0.84 1.2 0.48 0.54 0.76 0.96 <0.025 3.5 0.33 0.79 0.39 1.9 T4-E-8 8 01/15/09 470* <10 920 <0.20 <0.20 2.5 4.5 1.0 <0.2 <0.9 <0.2 10.2 <0.2 1.9 2.6 4.0 <0.20 14 1.1 2.4 1.3 2.7 Exploratory Test Pit Sampling EP1-7 7 01/15/09 <1.0 <10 <1.0 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 EPl-15 15 01/15/09 910*(1,100) 16 1600 <0.25 <0.25 <0.25 <0.50 <0.25 <0.25 <1.5 <0.25 <0.25 <0.25 2.4 3.0 <0.25 <0.25 <0.25 2.4 <0.25 1.8 <0.25 EP2-7 7 01/15/09 1,000*(1,200) 21 580 <0.09 <0.09 <0.09 <0.20 <0.09 <0.09 <0.5 <0.09 <0.09 <0.09 0.42 0.48 <0.09 0.13 <0.09 1.2 <0.09 0.41 <0.20 EP3-7 7 01/15/09 860 <10 300 <0.05 <0.05 <0.05 <0.10 <0.05 <0.05 <0.25 <0.05 <0.05 <0.05 0.078 0.094 <0.05 <0.05 <0.05 0.39 <0.05 0.12 <0.08 EP4-6 6 01/15/09 16,000000 <200 660 <0.15 <0.15 <0.15 <0.25 <0.15 <0.15 <0.7 <0.15 <0.15 <0.15 3.4 5.0 <0.15 0.29 <0.15 3.8 <0.15 2.2 1.4 16 EP4-18 18 01/15/09 270* <10 270 <0.05 <0.05 <0.05 <0.10 <0.05 <0.05 <0.25 <0.05 <0.05 <0.05 0.48 0.77 <0.05 <0.05 <0.05 0.34 0.088 0.37 <0.05 EP5-7 7 01/15/09 1,900*(2,200) 17* 1000 <0.20 <0.20 <0.20 <0.40 <0.20 <0.2 <0.9 <0.2 <0.2 <0.2 3.0 4.3 <0.20 <0.20 0.26 2.2 <0.20 1.7 2.4 Geoprobe Borings EB-1-8 8 03/26/09 780* 14 440 <0.05 <0.05 <0.05 <0.10 <0.05 <0.05 <0.25 <0.05 <0.05 <0.05 0.78 1.2 <0.05 0.072 <0.05 1.0 <0.05 1.0 <0.08 EB-1-16 16 03/26/09 350' <10 430 <0.05 <0.05 <0.05 <0.10 <0.05 <0.05 <0.25 <0.05 <0.05 <0.05 1.1 1.4 <0.05 <0.05 <0.05 0.65 <0.05 0.64 <0.05 Water Analytical Results(pg/L) Tank Contents T1-Water 8 12/05/08 1,100,000 20,000 2,500 <0.9 <0.9 <0.9 <2.0 <0.9 <0.9 <5.0 <0.9 <0.9 <0.9 <0.9 0.93 12 <0.9 31 <2.0 7.1 1.1 12 Grab Groundwater Samples EB-1-GW Grab 03/26/09 <1,000,000' 5,100** 23,000 2.9 1.6 7.5 3.3 3.2 1.1 8.2 <0.5 <0.5 <0.5 160 150 <0.5 2.7 7.6 27 1.4 17 21 EB-2-GW Grab 03/26/09 1,300 3,200 <50 <0.5 <0.5 <0.5 <1.0 <0.5 <0.5 <5.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 EB-3-GW Grab 03/26/09 <40000' 800 6,200 9.3 6.8 20 14 10 0.92 6.9 <0.9 <0.9 <0.9 93 81 0.93 1.6 4.3 15 15 13 4.2 Notes: bgs below ground surface not analyzed mg/kg milligrams per kilogram MTBE Methyl-t-butyl ether µg/L micrograms per litre TBA Tert-Butanol Bold detected concentration DIPE Diisopropyl ether (###) detected concentration using Silica Gel clean-up ETBE Ethyl-t-butyl ether < Not detected above laboratory reporting limit TAME Tert-amyl methyl ether + MRL increased due to interference from Gasoline-range hydrocarbons * Hydrocarbons reported as higher-boiling than typical Diesel Fuel ** Hydrocarbons are lower-boiling than typical Motor Oil HADept.3\7345.09-Stockton Promenade-Edison$t.USTs\Tab1esV345.09-Edison St USTs\VOCs and TPH