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T* <br /> Second Quarter 2003 Groundwater Monitoring and Analytical Data <br /> 7 Eleven Store#19976 <br /> 1399 North Main Street <br /> Manteca CA <br /> Well ID/ Ethyl- Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPHg MtBE TBA DIPE ETBE TAME Notes Oxygen DTW SPT WTE <br /> (TOC) (p91L) I (pg►L) (pgfL) (pg/L) I (pglL) (pg/L) I (pgfL) (pgfL) (pg1L) (Ng1L) (mgfL) (feet) (feet) (feet) <br /> MW-1 06/27/03 077 <0 50 065 1 6 <50 55 11 <0 50 <0 50 <0 50 54 2042 000 11 57 <br /> 31 99 <br /> MWAA 06/27/03 <0 50 <0 50 <0 50 <0 50 <50 094 <5 0 <0 50 <0 50 <0 50 67 2091 000 11 18 <br /> 3209 <br /> MW-2 06/27/03 3,100 1,900 1,600 7,900 55,000 2,300 1,200 <0 50 <0 50 31 e 01 1978 000 11 42 <br /> 31 20 <br /> MW-3 06/27/03 13 18 <0 50 13 <50 1 6 <50 <0 50 <0 50 <0 50 42 2029 000 11 56 <br /> 31 87 <br /> MW-4 06/27/03 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <50 <0 50 <0 50 <0 50 79 2034 000 1239 <br /> 3273 <br /> MW-4A 06/27/03 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <5 0 <0 50 <0 50 <0 50 23 2096 000 11 52 <br /> 3248 <br /> MW-5 06/27/03 <0 50 <0 50 <0 50 <0 50 <50 060 <5 0 <0 50 <0 50 <0 50 f 04 2070 000 11 18 <br /> 31 88 <br /> MW-5A 06/27/03 <0 50 <0 50 <0 50 <0 50 140 310 90 <0 50 1 1 <0 50 If 02 2073 000 1075 <br /> 3148 <br /> MW-6 06/27/03 <0 50 <0 50 <0 50 <0 50 <50 46 <5 0 <0 50 <0 50 <0 50 02 2216 000 1149 <br /> 3365 <br /> MW-7 06127!03 <0 50 <0 50 <0 50 <0 50 <50 095 <5 0 <0 50 <0 50 <0 50 05 21 48 000 1097 <br /> 3245 <br /> Explanation <br /> TPHg=Total petroleum hydrocarbons as gasoline TAME=Teri-amyl-methyl ether pglL=micrograms per liter <br /> MtBE=Methyl-tert butyl ether DTW=Depth to water mg1L=milligrams per liter <br /> TBA=Tert-butanol SPT=Separate-phase hydrocarbon thickness it=feet <br /> DIPE=Diisopropyl ether WTE=Water table elevation —=Not sampledlnot measured <br /> E1BE=Ethyl-ted-butyl ether TOC=Top of casing elevation in feel above mean sea level N/A=Not Applicable <br /> Notes <br /> All samples analyzed using EPA Method 82608 <br /> e=Matrix SpikelMainx Spike Duplicate Results for Benzene Toluene and M1BE were affected by the analyte concentration already present in the un spiked sample <br /> f=Samples from MW-5 and MW 5A inadvertently sampled from the wrong well casing on 3111103 and 6/27103 The sample reported as MW 5"was collected from MW-5A and the sample <br /> reported as MW-5A"was collected from MW-5 <br /> M <br /> 7-Elevenl7 11 Storel140637ables119976 03 20 As Page 1 of 1 <br />