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_w <br /> - — - Table 1 Summary of Groundwater Elevation Data and Analytical Laboratory Results for <br /> Groundwater Samples Collected at Former E-Z Serve Station#100878 <br /> 1012 West Yosemite Avenue,Manteca,California <br /> Well Depth Product Groundwater EPA Methods 8015 and 8020 <br /> Date Elevation to Water Thickness Elevation Concentration /L <br /> _ -Well I D Sam led feet feet (feet) feet TPH& Benzene Toluene Eth Ibenzen Xylenes <br /> I <br /> MW-3 30-Jan-91 99 16 18 13 81 03 98 1 <1 <1 <1 <br /> 17-May-91 16 97 8219 300 <1 4 <1 8 <br /> 14-Aug-91 19 67 79 49 1,500 <1 18 <1 9 <br /> - _ 6-Nov-91 19 40 79 76 830 11 5 1 6 <br /> = 18-Feb-92 17 89 81 27 400 4 <1 6 2 <br /> - - 12-Sep-92 21 99 77 17 430 3 1 3 4 <br /> 23-Dec-92 2000 79 16 670 4 <1 8 8 <br /> 3-Mar-93 1644 8272 600 8 <1 3 4 <br /> 4-Jul-93 - 20 65 78.51 130 2 3 2 5 <br /> 15-Sep-93 21 99 77 17 390 <I <1 2 <1 <br /> 21-Dec-93 1841 80 75 2,100 63 340 100 570 <br /> 2-May-94 17.59 8157 <100 <I <1 <I <1 <br /> 15-Jul-94 1856 80 60 1,900 46 370 61 340 <br /> -_ 27-Sep-94 - 2059 7857 <100 <I <1 <1 <1 <br /> 7-Dec-94 1825 8091 200 <05 <05 0 5 0 9 <br /> -MW-4 1-JuI-92 98 38 19 97 78 41 <100 <I <i 1 <1 <br /> 12-Sep-92 21 33 7705 52 2 <1 <1 4 <br /> 23-Dec-92 1925 79 13 <100 1 <I <1 <1 <br /> 3-Mar-93 15 83 82 55 <100 <1 <I <1 <I <br /> 4-Jul-93 2021 78 17 1,500 <I <1 110 41 <br /> T _ 15-Sep-93 2140 76 98 <100 <I <1 1 <1 <br /> _ 21-Dec-93 1770 80 68 1,300 45 190 68 370 <br /> -- _ 2-May-94 1701 8137 <100 <I <1 <I <1 <br /> - 15-Jul-94 18 10 8028 3,100 99 700 91 530 <br /> - - 27-Sep-94 20 16 78 22 <100 <1 <1 <I <1 <br /> 7-Dec-94 - 17 57 80 81 <50 <0 5 <05 <05 <05 <br /> - = <br /> 6 lerserve11008781gtr-pt As Page 2 of 4 <br />