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� w w �■ w w w� w�� www �w� �..�� �� w�. ■w� w � <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON, CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(µg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- _ <br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH- MTBE <br /> PI 03/05/02 644 <br /> PI 06/11/02 644 <br /> PI 09/10/02 644 -- -- <br /> P2 01/30/91 787 3022 -2235 000 -- -- -- -- -_ <br /> P2 05/02/91 787 3013 -2226 000 140 13 650 610 5,400 -- <br /> P2 07116-17/91 787 3105 -23 18 000 61 <5 300 220 5,200 -- <br /> P2 10/15/91 787 3164 -2377 000 20 82 90 63 1,500 -- <br /> P2 01/28/92 787 — 2993 -2206 000 53 24 170 120 2,900 -- <br /> P2 04/30/92 787 2951 -2164 000 52 <2 5 160 120 2,000 -- <br /> P2 08/13/92 787 3153 -2366 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 02/23/93 787 2879 -2092 000 58 30 44 34 1,000 -- <br /> P2 05/18/93 787 2739 -1952 000 65 20 81 58 1,400 -- <br /> P2 08/22/93 787 2763 -1976 000 50 24 69 53 1,400 -- <br /> P2 12/30/93 787 2729 -1942 000 160 45 180 105 42,000 -- <br /> P2 02/17/94 787 2697 -1910 000 57 28 17 14 270 -- <br /> P2 05/10/94 787 2663 -1876 000 24 <0 5 92 69 1,500 -- <br /> P2 08/02/94 787 2808 -2021 000 35 so 96 82 1,800 -- <br /> P2 11/01/94 787 2843 -2056 000 18 <0 5 76 66 1,400 -- <br /> P2 02/17/95 787 2571 -1784 000 -- -- -- -- __ <br /> P2 05/11/95 787 2300 -15 13 000 20 <5 0 58 40 1,400 -- <br /> P2 08/24/95 787 2442 -1655 000 62 <2 5 70 42 1,400 -- <br /> P2 10/19/95 787 2498 -17 11 000 53 <2 0 65 34 1,100 <10 <br /> P2 02/13/96 787 2276 -1489 000 63 <2 5 77 43 1,700 -- <br /> P2 04/18/96 787 2057 -1270 000 55 <2 5 74 39 1,600 <12 <br /> P2 08/08/96 787 2171 -1384 000 -- -- -- __ __ -- <br /> P2 11/04/96 787 2230 -1443 000 <5 0 <5 0 51 16 1,500 <25 <br /> P2 02/03/97 787 1766 -979 000 <2 0 <2 0 52 17 1,500 13 <br /> P2 05/08/97 679 1724 -1045 000 18 <2 5 42 65 1,700 15 <br /> P2 08/26/97 679 1896 -12 17 000 17 <2 0 25 26 1,500 11 <br /> P2 11/11/97 679 1950 -1271 000 25 <5 0 25 <5 0 1,300 <25 <br /> P2 03/03/98 679 1406 -727 000 17 <5 0 27 <5 0 1,400 <25 <br /> P2 03103198 679 <2 0* <br /> g 4pro3ects1739421masteAwp\gO90213942gw xis Page 24 of 41 <br />