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TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration( /w <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> 131 09/11/00 643 -- -- -- -- -- -- _- -- <br /> P1 12/13/00 643 <br /> Pi 03/08/01 643 <br /> Pl 06/21/01 643 <br /> P1 09/20/01 643 <br /> P1 12/04/01 644 <br /> P1 03/05/02 644 <br /> P1 06/11/02 644 <br /> Pi 09/10/02 644 <br /> 131 12/18/02 644 <br /> P1 03/24/03 644 <br /> Pi 06/11/03 644 -- -- _ <br /> P2 01/30/91 787 3022 -2235 000 -- -- __ __ <br /> P2 05/02/91 787 30 13 -2226 000 140 13 650 610 5,400 -- <br /> P2 07/16-17191 787 31 05 -2318 000 61 <5 300 220 5,200 -- <br /> P2 10/15/91 7 87 3164 -2377 000 20 8 2 90 63 1,500 -- <br /> P2 01/28/92 7 87 2993 -2206 000 53 24 170 120 2,900 <br /> P2 04/30/92 7 87 2951 -2164 000 52 <2 5 160 120 2,000 -- <br /> P2 08/33/92 7 87 3153 -23 66 000 45 12 100 76 2,100 -- <br /> P2 10/08/92 787 32 17 -2430 000 34 20 60 80 2,000 -- <br /> P2 02/23/93 7 87 28 79 -2092 000 58 3 0 44 34 1,000 <br /> P2 05/18/93 7 87 2739 -1952 000 65 20 81 58 1,400 -- <br /> P2 08/22/93 787 2763 -1976 000 50 2 4 69 53 1,400 -- <br /> P2 12/30/93 7 87 2729 -1942 000 160 45 180 105 42,000 -- <br /> P2 02/17/94 787 2697 -19 10 000 5 7 2 8 17 14 270 -- <br /> P2 05/10/94 787 2663 -1876 000 24 <0 5 92 69 1,500 -- <br /> P2 08/02/94 7 87 2808 -2021 000 35 5 0 96 82 1,800 <br /> P2 11/01/94 7 87 28 43 -2056 000 18 <0 5 76 66 1,400 -- <br /> P2 02/17/95 787 2571 -1784 000 -- __ __ <br /> P2 05/11/95 7 87 2300 -15 13 000 20 <5 0 58 40 1,400 -- <br /> P2 08/24/95 7 87 2442 -16 55 000 6 2 <2 5 70 42 1 400 -- <br /> 1,1projects1779421masterlwp1gO6O3%39426w xis Page 27 of 49 <br />