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Table 2 <br /> First Quarter 2003 Groundwater Monitoring and Analytical Data <br /> 7 Eleven Store#19976 <br /> 1399 North Main Street <br /> Manteca CA <br /> Well ID/ Ethyl- MtBE 1,2- Eth- Meth- Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G 8020 MtBE TBA DIPB EtBE TAME DCA anol anol Dotes Oxygen DTW SPT WTE <br /> OC m m m fees (feet) feet <br /> MW-7 <br /> 3245 10/12/00 - -- - -- - <br /> -- -- -- -- -- -- -- -- -- -- -- -- <br /> 01/16/01 095 <05 15 23 <100 56 <50 <2 <2 <2 C 06 1864 000 1381 <br /> 04/02/01 <0 5 <05 12 27 150 42 <50 <2 <2 <2 - 1 0 1944 000 1301 <br /> 06/26101 <05 <05 1 5 27 170 55 <50 <2 <2 <2 09 21 70 000 1075 <br /> 11/28/01 <05 <05 <05 <05 57 <5 <20 <5 <5 <5 1 0 21 81 000 1064 <br /> 01/30/02 <05 <0 5 <0 5 052 91 13 <20 <5 <5 <5 1 0 1956 000 1289 <br /> 04/04/02 <0 5 <0 5 <0 5 <0 5 <50 82 86 <5 <0 5 <05 <05 1 3 2037 000 1208 <br /> 07/08/02 <0 5 085 <05 <0 5 69 <5 38 <5 <0 5 <05 <05 1 1 21 50 000 1095 <br /> 10/03/02 <05 <0 5 <05 <0 5 <50 <5 26 <5 <0 5 <0 5 <0 5 - - 1 1 2080 000 11 65 <br /> 03/11/03 <0 50 <0 50 <050 <0 50 <50 1 1 <50 <050 <0 50 <0 50 38 2038 000 1207 <br /> Exnlanatlon <br /> TPHg=Total petroleum hydrocarbons as gasoline 1 2 DCA=1 2 Dichloroethane pg1L=micrograms per liter <br /> MtBE=Methyl tart butyl ether DTW=Depth to water mg/L=milligrams per liter <br /> TSA=Tert butanol SPT=Separate phase hydrocarbon thickness it=feet <br /> DIPE=Dtasoprophyl ether WTE=Water table elevation =Not sampled/not measured <br /> EtBE=Ethyl tert butyl ether TOC=Top of casing elevation in feet above mean sea level <br /> TAME—Tert amyl methyl ether <br /> Notes <br /> Historical data prior to 03107/03 sample date provided by Shaw E&I <br /> a=Deep zone well <br /> b=Laboratory results for the 11/04/99 samples collected from the nested wells MW 1 and MW 1 A were switched The table shows corrected data <br /> C=Method Blank Contamination The method blank contains the targeted analyte at a reportable level <br /> d=Data Missing from Shaw s Histoncal Table <br /> 117 Elevenl7 11 Stores1199761Tables119976 03 10 xlsHistorical Water Page 7 of 7 <br />