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�*i � � � � � � W � � � � � � 1111111,r m <br /> TABLE 1 GROUNDWATER MONITORING DATA,FORMER EXXON R5 7-3942,4444 N PERSHrNG AVENUE, STOCKTON, CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(µg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft ms I) (ft) (ft msl) (ft) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> P1 02/17/95 779 25 52 -1773 000 80 5 8 300 180 4,000 -- <br /> 05/11/95 2295 -15 16 000 55 <5 0 160 110 2,400 -- <br /> 08/24/95 2431 -1652 000 <5 0 8 0 350 230 2,900 -- <br /> 10/19/95 2478 -1699 000 84 9 7 250 180 2,700 <25 <br /> 02/13/96 2252 -1473 000 84 <5 0 230 70 3,300 -- <br /> 04/18/96 2070 -1291 000 -- -- -- -- -- <br /> 08/08/96 2141 -13 62 000 -- -- -- -- -- -- <br /> 11/04/96 2205 -1426 000 67 <5 0 170 21 2,000 <25, <br /> 02/03/97 1750 -971 000 -- -- -- -- -- -- <br /> 05/08/97 643 17 14 -1071 000 41 2 9 120 48 1,500 7 1 <br /> 08/26/97 18 82 -1239 000 -- -- -- -- -- -- <br /> 11/11/97 1936 -12 93 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 03/03/98 1341 -698 000 20 1 1 91 28 940 13 <br /> 03/03/98 3 7* <br /> 05/20/98 1375 -732 000 20 <5 0 110 19 1,600 <25 <br /> 05/20/98 3 1* <br /> 08/19/98 1521 -878 000 1 6 2 5 17 1 3 250 3 0 <br /> 08/19/98 <2 0* <br /> 11/18/98 1561 -9 18 000 -- -- -- -- -- -- <br /> 03/30/99 -- -- -- <br /> 05/05/99 1437 -794 000 -- - -- - -- - <br /> 08/20/99 -- -- -- -- -- -- - <br /> 12/06/99 -- -- -- - - - -- - <br /> 02/29/00 -- -- -- -- -- <br /> 05/16/00 -- -- -- <br /> P2 01/30/91 7 87 3022 -2235 000 -- -- -- -- -- <br /> 05/02/91 30 13 -2226 000 140 13 650 610 5,400 - <br /> 07/16-17/91 3105 -23 18 000 61 <5 300 220 5200 - <br /> 10/15/91 3164 -2377 000 20 8 2 90 63 1,500 - <br /> f 1pru)ects1739421masterlwp1Q500�3942gw xis 1'W IL 21 of 17 <br />