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Table 3-8 <br /> PG&E Tracy Service Center <br /> _ Groundwater Monitoring Data <br /> from 1989 to 1995 Page 1 of 7 <br /> Top of Depth to Groundwater Ethyl- Total <br /> Sample Sampling Casing Groundwater Elevation TPI IG Aencene Toluene benzene xylenes Lead <br /> Designation Date (ft/MSL) (ft) (ft/MSL) u /L, UA u u ugfL m <br /> OW 1 04/25/89 1000 NA NA <200 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 07/31/89 1000 996 0 04 NA <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 10/04/89 1000 8 53 1 47 <40 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 01/16/90 1000 NA NA <20 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 04/I6/90 1000 798 202 <20 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 07/26/90 1000 864 136 <100 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 10/15/90 10 00 936 064 <100 <0 5 <0 5 <0 5 <0 5 <0 05 <br /> OW-1 01/15/91 1000 835 165 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-1 04/02/91 1000 781 2 19 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-1 07/26/91 1000 870 1 30 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-1 09/30/91 1000 908 092 <30 <0 3 <0 3 <0 3 <0 3 NA <br /> OW-1 01/16/92 1000 879 121 <30 <0 3 <0 3 <0 3 <0 3 NA <br /> OW-1 04/08/92 1000 820 180 --- --- --_ _-_ <br /> OW-1 07/20/92 1000 864 l 36 --- --- -_- --_ --- <br /> OW-1 10/13/92 1000 898 1 02 --- --- _-- --- --- <br /> OW-1 04/12/93 1000 760 240 --- --- --- --- --- -__ <br /> OW-1 10/05/93 to 00 860 140 -__ _-_ __- -__ --- <br /> OW-1 04/05/94 1000 807 193 --- --_ --- --- _ <br /> OW-1 09/29/94 1000 890 1 10 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> W-1 02/14195 10 00 778 222 --- --- --- --- _-- <br /> OW-1 05/19/95 1000 832 168 --- --- --- _-- --- _-- <br /> OW-1 08/08/95 1000 896 104 <50 <0 5 <0 5 <0 5 <0 5 NA <br /> OW-1 11121/95 1000 888 1 12 --- _-- _-- -_- _-- _-- <br /> OW-2 04/25/89 937 NA NA 1200 1540 22 95 11 <0 05 <br /> OW-2 07/31/89 937 828 109 NA 183 <2 5 <2 5 6 5 <0 05 <br /> DUP 07/31/89 --- --- --- NA 21 4 0 <2 5 3 4 <0 05 <br />