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Table 5 <br /> Historical Analytical Data for Groundwater Grab Samples <br /> (TPH-g , BTEX, Fuel Oxygenates , and Fuel Additives) <br /> Former Colombo / Toscana Bakery <br /> 1444 South Lincoln Street <br /> Stockton , California 95206 <br /> Concentration and Associated MCLs ( µg/L) <br /> Sampling ID Sampling <br /> (Depth bgs) Date TPH-g Benzene Toluene Ethylbenzene Xylenes MTBE TBA DIPE ETBE TAME 1 ,2- DCA 1 ,2- DBA <br /> NE ( 1 ) (150) (300) (1 ,750) ( 13) NE NE NE NE (0.5) (0 .05) <br /> CPT- M9 (45-50') 4/7/2008 < 50 < 0 . 50 < 0 . 50 <0 . 50 <0 . 50 <0 . 50 <5 . 0 <0 . 50 <0 . 50 <0 . 50 <0 . 50 < 0 . 50 <br /> CPT- M9 (74-79') 4/7/2008 250 1 . 5 0 .85 < 0 . 50 < 0 . 50 <0 . 50 12 0 .63 < 0 . 50 < 0 . 50 <0 . 50 < 0 . 50 <br /> CPT-M9 ( 102-107') 4/7/2008 160 <0 . 50 <0 . 50 < 0 . 50 <0 . 50 <0 . 50 9 .8 1 .3 < 0 . 50 < 0 . 50 0.65 < 0 . 50 <br /> CPTMM10 (47-52') 4/7/2008 510 3 .7 0.68 <0 . 50 3 .2 <0 . 50 6.9 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <br /> CPT= M10 (74-79 ') 4/7/2008 19800 310 13 2.4 18 <0 . 50 22 0 .89 < 0 . 50 <0 . 50 <0 . 50 < 0 . 50 <br /> CPT= M10 (105=115 ') 4/7/2008 120 <0 . 50 <0 . 50 < 0 . 50 <0 . 50 <0 . 50 10 3 .4 < 0 . 50 < 0 . 50 0 .69 < 0 . 50 <br /> CPT=M11 (47-52') 4/10/2008 <50 < 0 . 50 < 0 . 50 <0 . 50 <0 . 50 <0 . 50 150 <0 . 50 3.8 <0 . 50 1 .4 <0 . 50 <br /> CPT= M11 (82-871) 4/10/2008 130 1 .0 < 0 . 50 < 0 . 50 <0 . 50 1 . 1 12 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <0 . 50 <br /> CPT= M11 ( 115- 120') 4/10/2008 <50 < 0 . 50 <0 . 50 < 0 . 50 <0 . 50 <0 . 50 <5 . 0 <0 . 50 < 0 . 50 < 0 . 50 <0 . 50 < 0 . 50 <br /> Notes : <br /> ft. bgs = feet below ground surface. 1 , 2- DBA = 1 , 2-dibromoethane (ethylene dibromide or EDB) . <br /> µg/L = Micrograms per liter. 1 , 2- DCA = 1 ,2-dichloroethane (ethylene dichloride or EDC) . <br /> TPH-g = Total petroleum hydrocarbons quantified as gasoline. NA = Not analyzed. <br /> MTBE = Methyl tertiary butyl ether. NE = None established. <br /> TBA = Tertiary butyl alcohol . * 1 - Result is by EPA Method 8020. <br /> DIPE = Di -isopropyl ether. *2 - Result by EPA Method 8260 . <br /> ETBE = Ethyl tertiary butyl ether. *3 - Analyte was detected at a concentration below the reporting limit, but above the laboratory <br /> TAME = Tertiary amyl methyl ether. detection limit. Reported value is estimated . <br /> Title 22 CCR MCLs = Title 22 California Code of Regulations Maximum Contaminant Levels (June 2004) . <br /> = Highlighted value exceeds MCL. <br /> 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 4 <br />