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Table 4
<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 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 /> 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 <25 <25 <25 <150 35 <25
<br /> VE-1 1/27/2009 130,000 10,000 17,000 3,900 19,000 1,400 <25 <25 <25 <150 38 <25
<br /> VE-1 4/27/2009 130,000 9,400 24,000 3,400 19,000 1,300 <50 <50 <50 <250 <50 <50
<br /> VE-1 7/22/2009 100,000 8,900 24,000 3,200 18,000 1,400 <50 <50 <50 <250 <50 <50
<br /> CT-MW-8-87 7/22/2009 290 0.55 <0.50 <0.50 <0.50 9.9 <0.50 <0.50 <0.50 22 <0.50 <0.50
<br /> CT-MW-9-120 7/22/2009 85 1.3 <0.50 <0.50 <0.50 <0.50 1.1 <0.50 <0.50 6.7 <0.50 <0.50
<br /> TX-MW-8-50 7/22/2009 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50
<br /> TX-MW-14-49 7/22/2009 <50 <0.50 <0.50 <0.50 <0.50 20 <0.50 4.6 <0.50 130 1.8 <0.50
<br /> TX-MW-21-80 7/22/2009 2,800 550 21 4.7 43 <0.90 1.3 <0.90 <0.90 29 <0.90 <0.90
<br /> Travel Blank 1/16/2007 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50
<br /> Travel Blank 4/13/2007 <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 NA NA
<br /> Travel Blank 7/23/2007' <50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 NA
<br /> S:GShare USTSara Lee\Proleds\California\StooIuon(1444 South Linc h Sireet)=09_o0-MW Installation RepoMTables H FguresM09_07_03 B IMI Instaflation Data-Tables.als Page 5 of 6
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