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Table 4 Historical Analytical Data for Soil Samples (TPH-g , BTEX, Fuel Oxygenates, and Fuel Additives) Former Colombo / Toscana Bakery 1444 South Lincoln Street Stockton , California 95206 Concentration and Associated RWQCB Residential ESLs (mg/kg) Sample ID Sampling ( Depth bgs) Date TPH-g Benzene Toluene Ethylbenzene Xylenes MTBE TBA DIPE ETBE TAME 1 , 2- DCA 1 , 2-DBA Lead ( 110) (0 . 12) (63) (2 .3) (31 ) (30) (320 ,000) ( NE) (NE) (NE) (0 .22) (0.019) ( NE) C3 (8') 5/2/2007 < 1 . 0 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 NA C3 ( 10') 5/2/2007 < 1 . 0 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <000050 <0 . 0050 <0 . 0050 <0 . 0050 NA C3 ( 15) 5/2/2007 1 , 100 0 . 048 0.036 3 .9 46 0 .099 <0 . 15 <0 . 025 <0 . 025 <0 . 025 <0 . 025 <0 . 025 NA C3 (209) 5/2/2007 17800 1 . 5 26 48 240 0.92 < 1 . 5 <0 .30 <0 . 30 <0 . 30 <0 . 30 <0 . 30 NA C3 (259) 5/2/2007 5 ,500 11 160 120 700 0.40 < 1 . 5 <0 .25 <0 . 25 <0 . 25 <0 . 25 <0 . 25 NA C3 (301) 5/2/2007 14 1 .8 0.017 1 .6 1 .7 0 .050 0.026 <0 . 0050 <0 . 0050 <0 . 0050 0.034 <0 . 0050 NA C3 (351) 5/2/2007 460 3.0 14 8 .5 42 <0 . 070 <0 .40 <0 . 070 <0 . 070 <0 . 070 <0 . 070 <0 . 070 NA C3 (401) 5/2/2007 42 0.20 0.88 0.40 2 . 1 0 .011 0.024 <0 . 0050 <0 . 0050 <0 . 0050 0 .012 <0 . 0050 NA C3 (431) 5/2/2007 21800 3.4 120 59 270 <0 . 50 <2 . 5 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <0 . 50 NA C3 (46 ') 5/2/2007 3 ,400 38 200 66 340 <0 . 50 <2 . 5 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <0 . 50 NA C4 ( 11 ') 5/3/2007 < 1 . 0 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 NA C4 ( 15') 5/3/2007 230 0 .065 0.077 1 .2 4.5 0 . 017 <0 .025 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 010 NA C4 (20) 5/3/2007 23 0 .088 0. 14 0.42 2 .0 0.95 O. 23µ3 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 <0 . 0050 NA C4 (251) 5/3/2007 340 3. 3 11 8.2 34 0 .29 <0 . 15 <0 . 025 <0 . 025 <0 . 025 <0 . 025 <0 . 025 NA C4 (301 ) 5/3/2007 5.9 0 .78 0. 0054 0.21 0. 19 0 . 079 1 0 .041 <0 . 0050 <0 . 0050 <0 . 0050 0 .048 <0 . 0050 NA C4 (35') 5/3/2007 150 2.3 9 .3 3.0 15 0 .44 <0 . 25 <0 . 050 <0 . 050 <0 . 050 <0 . 050 <0 . 050 NA C4 (401) 5/3/2007 120 0 . 30 2.7 1 .9 11 0 .29 <0 . 15 <0 . 025 <0 . 025 <0 . 025 <0 . 025 <0 . 025 NA C4 (45') 5/3/2007 21500 30 150 53 250 <0 .25 < 1 . 5 <0 . 25 <0 . 25 <0 . 25 <0 . 25 <0 . 25 NA C4 (46') 5/3/2007 22 1 .7 5 .5 0 .43 2. 1 0 . 12 0 .038 <0 . 0050 <0 . 0050 <0 . 0050 0.0058 <0 . 0050 NA S:\Shared\UST\Sara Lee\Project\Stockton (Lincoln Street)\2008 Remedial_Subsurface Investigation\2008_08 - Report\Investigation Report & SCM Tables (Rev).xls Page 4 of 11