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Table 5
<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 Sampling TPH-g Benzene Toluene Ethylbenzene Xylenes MTBE DIPE I ETBE TAME TBA 1,2-DCA 1,2-DBA
<br /> Well Date NE (1) (150) (300) (1750) (13) NE NE NE NE (0.5) (0.05)
<br /> MW-71) 10/31/1997 10,000 1,300 1,200 220 1,000 <50 <50 <50 <10 <50 NA NA
<br /> MW-71) 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-71) 4/13/2007 810 370 12 12 28 4.4 <0.50 <0.50 <0.50 10 NA NA
<br /> MW-71) 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 2,700 1,200 23 35 77 9.1 <2.0 <2.0 <2.0 11 <2.0 <2.0
<br /> MW-71) 1/15/2008 1,200 440 7.4 14 32 3.7 <0.50 <0.50 <0.50 10 1.5 <0.50
<br /> MW-71) 4/14/2008 540 130 3.2 12 28 1.4 <0.50 <0.50 <0.50 10 1.2 <0.50
<br /> MW-7D 7/15/2008 930 290 4.1 14 26 2.6 <0.50 <0.50 <0.50 12 1.3 <0.50
<br /> MW-71) 10/28/2008 1,400 370 6.8 31 55 5.0 <0.50 <0.50 <0.50 12 1.4 <0.50
<br /> MW-7D 1/27/2009 1,400 540 7.7 39 61 5.4 <0.90 <0.90 <0.90 10 1.3 <0.90
<br /> MW-71) 4/27/2009 1,000 330 6.7 42 62 2.0 <0.80 <0.80 <0.80 11 1.2 <0.80
<br /> MW-7D 7/22/2009 600 180 2.7 13 18 2.2 <0.50 <0.50 <0.50 10 1.2 <0.50
<br /> MW-71) 10/14/2009 1,400 630 9.3 48 64 4.3 <0.50 <0.50 <0.50 13 1.2 <0.50
<br /> MW-71) 1/12/2010 800 180 3.1 18 26 1.9 <0.50 <0.50 <0.50 9.8 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 120,000 9,300 24,000 3,400 20,000 3,000 <50 <50 <50 <250 <50 NA
<br /> VE-1 10/16/2007 140,000 9,600 25,000 3,800 22,000 1,900 <50 <50 <50 <250 <50 <50
<br /> VE-1 1/15/2008 110,000 7,600 20,000 2,800 17,000 1,500 <50 <50 <50 <250 <50 <50
<br /> VE-1 4/14/2008 130,000 9,100 23,000 3,200 19,000 1,600 <50 <50 <50 <250 <50 <50
<br /> VE-1 7/15/2008 130,000 9,400 24,000 3,400 19,000 1,800 <25 <25 <25 <150 34 <25
<br /> VE-1 10/28/2008 120,000 9,300 14,000 3,800 19,000 1,600 1 <25 <25 <25 <150 35 <25
<br /> S'\SharodWSTSara Lee\Projects\California\Stockton(1444 South Lincoln StreettQuarlerly Monitoring R...ft52010_01_Q1\Tables and Figures\2010_01_O1-QMR-Tabl.h.to Page 5 of 8
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