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Table 1.Summary of Groundwater Elevation Data and Analytical Laboratory Results for <br /> Groundwater Samples Collected at Former E-Z Serve Station#100978 <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 IL <br /> Well I D Sampled (feet)' (feet)2 feet feet t TPH 9 Benzene Toluene Eth lbenzen Xylenes <br /> - - - 15-Jul-94 18 56 8060 1,900 46 370 61 340 <br /> --- 27-Sep-94 2059 78 57 <100 <1 <1 <1 <I <br /> 7-Dec-94 18 25 8091 200 <05 <0 5 05 09 <br /> 24-Mar-95 1472 8444 <50 <05 <05 <05 06 <br /> -— 22-Jun-95 - 1698 82 18 70 <05 <05 <05 1 <br /> - 15-Sep-95 19 93 79 23 <100 <1 <1 <I <3 <br /> 12-Dec-95 1805 81 11 <100 <1 <1 <1 <3 <br /> _ 22-Feb-96 1541 83 75 <50 <05 <05 <05 <1 5 <br /> - _ 15-Apr-97 13.77 85.39 <50 <0.5 <0.5 <0.5 <0.5 <br /> MW4 - 1-Jul-92 9838 19 97 7841 <100 <1 <1 1 <I <br /> _ 12-Sep-92 21 33 77 05 52 2 <1 <1 4 <br /> 23-Dec-92 19.25 79 13 <100 1 <1 <I <I <br /> - - 3-Mar-93 1583 82 55 <100 <I <3 <1 <1 <br /> 4-Jul-93 2021 78 17 1,500 <I <1 110 41 <br /> - - - <br /> 15-Sep-93 21.40 7698 <100 <1 <1 I <I <br /> T 21-Dec-93 17 70 8068 1,300 45 190 68 370 <br /> 2-May-94 1701 8137 <100 <1 <I <1 <1 <br /> 15-Jul-94 1810 80 28 3,100 99 700 91 530 <br /> 27-Sep-94 2016 78 22 <100 <1 <1 <1 <I <br /> - - 7-Dec-94 17 57 8081 <50 <05 <05 <br /> <05 <05 <br /> - 24-Mar-95 1471 83 67 <50 <05 <05 <05 <05 <br /> 22-Jun-95 16 95 8143 <50 <05 <05 <05 <05 <br /> T 15-Sep-95 19 57 78 81 <100 1 5 <I <1 3 6 <br /> - 12-Dec-95 17 40 8098 <100 <I <1 <1 <3 <br /> _ 22-Feb-96 14 83 83 55 <50 <05 <05 <05 <15 <br /> 15-Apr-97 13.19 85.19 64 <0.5 <0.5 - <0.5 <0.5 <br /> duplicate 15-Apr-97 64 <05 <05 <05 <05 <br /> r <br /> 6 lenerveltabfes1100878 xIs Page 3 of 6 <br />