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Table 6 <br /> Historical Analytical Data for Groundwater Well Samples <br /> Former Colombo / Toscana Bakery <br /> 1444 South Lincoln Street <br /> Stockton , California 95206 <br /> Concentration and Associated MCLs (µg/L) <br /> Monitoring SamplingffNIE <br /> H-g Benzene Toluene Ethylbenzene Xylenes MTBE DIPE ETBE TAME TBA 11 ,2-DCA 1 , 2- DBA <br /> Well Date ( 1 ) ( 150) (300) (1750) (13) NE NE NE NE (0 .5) (0 .05) <br /> MW-7S 10/31 /1997 1009000 19 ,000 17,000 2 ,200 85000 120 <50 <50 < 10 <50 NA NA <br /> MW-7S 1 /16/2007 32 ,000 12,000 260 150 260 41 <25 <25 <25 < 150 <25 <25 <br /> MW-7S 4/13/2007 317000 14,000 87 140 100 72 <25 <25 <25 < 150 NA NA <br /> MW-7S 7/23/2007 33 ,000 19 ,000 180 360 290 180 <25 <25 <25 < 150 <25 NA <br /> MW-7S 10/16/2007 30,000 137000 94 190 200 150 <25 <25 <25 < 150 <25 <25 <br /> MW-7S 1 /15/2008 22, 000 1 9 ,200 1 64-1 99 110 1 99 1 <20 1 <20 <20 <90 <20 <20 <br /> MW-7S 4/14/2008 23 ,000 12 , 000 130 140 180 120 <20 <20 <20 <90 <20 <20 <br /> MW-7D 10/31 /1997 107000 11300 19200 220 11000 <50 <50 <50 < 10 <50 NA NA <br /> MW-7D 1 /16/2007 480 120 1 .8 4.8 9.9 <0 . 50 <0 . 50 <0 .50 <0 . 50 9 .3 0 .52 <0 . 50 <br /> MW-7D 4/13/2007 810 370 12 12 28 4.4 <0 . 50 <0 .50 <0 .50 10 NA NA <br /> MW-7D 7/23/2007 2 ,000 710 18 25 54 6.7 <0 . 90 <0 . 90 <0 . 90 11 0 .92 NA <br /> MW-7D 10/16/2007 25700 1 ,200 23 35 77 9. 1 <2 . 0 <2 . 0 <2 . 0 11 <2 . 0 <2 . 0 <br /> MW-7D 1 /15/2008 19200 440 7.4 14 32 3 .7 <0 . 50 <0 .50 <0 . 50 10 1 .5 <0 . 50 <br /> MW-7D 4/14/2008 540 130 3 . 2 12 28 1 .4 <0 . 50 <0 .50 <0 . 50 10 1 .2 <0 . 50 <br /> VE-1 1 /16/2007 Not sampled due to free product . <br /> VE-1 4/13/2007 Not sampled due to free product . <br /> VE-1 7/23/2007 1203000 97300 24 ,000 37400 207000 3 ,000 <50 <50 <50 <250 <50 NA <br /> VE-1 10/ 16/2007 1403000 99600 25 , 000 39800 225000 19900 <50 <50 <50 <250 <50 <50 <br /> VE-1 1 /15/2008 1105000 79600 209000 21800 179000 1 ,500 <50 <50 <50 <250 <50 <50 <br /> VE-1 4/14/2008 1309000 99100 239000 33200 19 , 000 17600 <50 <50 <50 <250 <50 <50 <br /> S:\Shared\UST\Sara Lee\Project\Stockton (Lincoln Street)\2008 Remedial_Subsurface Investigation\2008_08 - Report\Investigation Report & SCM Tables (Rev).xls Page 3 of 4 <br />