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M MGM M M M M M M4r M <br /> Table 3-8 <br /> PG&E Tracy Service Center <br /> Groundwater Monitoring Data <br /> from 1989 to 1995 Page 5 of 7 <br /> Top of Depth to Groundwater Ethyl- Total <br /> Sample Sampling Casing Groundwater Elevation TPHG Benzene Toluene benzene Xylenes Lead <br /> Desi ation Date (ft/MSL) ft (ft/MSL) u u ugIL u UE& m <br /> OW4 07/2(V92 9 53 829 124 --- --- --- --- --- --- <br /> ql-4 10/13/92 953 862 091 --- --- <br /> W-4 04112!93 9 53 730 223 --- --- --- -- --- --- <br /> W-4 10/05/93 953 822 131 --- --- --- --- --- --- <br /> OW-4 04/05/94 9 53 769 184 --- --- --- --- --- --- <br /> OW4 09/29/94 9 53 841 112 <30 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-4 02/14/95 953 740 2 13 --- --- --- --- --- --- <br /> OW-4 05/19/95 953 792 161 --- --- --- --- --- --- <br /> OW4 U8/08/95 9 53 861 092 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW4 11/21/95 9 53 855 098 --- --- --- --- <br /> OW-5 04/25/89 939 NA NA <200 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 07/31/89 939 839 100 NA <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 10/04/89 939 792 147 <40 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 01/16/90 939 NA NA <20 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 04/16/90 939 741 198 <20 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 07/26/90 939 806 133 <100 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 10/15/90 939 876 063 <100 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-5 01/15/91 939 786 153 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> )W-5 04/02/91 939 723 2 16 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> W-5 07MN I 939 811 128 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-5 09/30/91 939 866 073 <30 <0 3 <0 3 <0 3 <0 3 NA <br /> OW-5 01/16/92 939 830 109 <30 <0 3 <0 3 <0 3 <0 3 NA <br /> OW-5 04/08/92 939 772 167 --- --- --- --- --- --- <br /> OW-5 07/20!92 939 817 122 --- --- --- --- --- --- <br /> W-5 10/13/92 939 850 089 <br />