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i ! i <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON,CALIFORNIA <br /> I <br /> Casing Depth Groundwater LPH _ Concentration Qq L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date (feet) (feet) (feet) _ (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> IW 1 01/30/91 780 3022 -2242 000 240 44 350 820 3,500 <br /> IWI, 05/02/91 780 3011 -2231 000 150 25 230 520 2,500 -- <br /> IW1 07/16-17191 780 3107 -23 27 000 -- -- -- __ __ <br /> IW 1 10/15/91 780 3165 -2385 000 120 36 280 390 3,400 <br /> iW I 01/28/92 7 80 2991 -2211 000 130 25 330 500 3,600 -- <br /> IW 1 04/30/92 7 80 2949 -2169 000 -- -- -- __ <br /> 1W 1 08/13/92 7 80 3153 -2373 000 19 3 7 50 70 650 -- <br /> IW l 10/08/92 7 80 32 13 -2433 000 -- -- -- __ -- <br /> IW 1 02/23/93 7 80 2878 -2098 000 <br /> 1W I 05/18/93 780 -- -- __ <br /> IW 1 08/22/93 7 80 2770 -1990 000 <br /> IW 1 12/30/93 7 80 2750 -1970 000 <br /> IW 1 02/17/94 7 80 27 17 -1937 000 -- -- -- -_ __ <br /> IW 1 05/10/94 7 80 2896 -1906 000 41 7 7 180 230 2,000 -- <br /> IW 1 08/02/94 7 80 2829 -2049 000 55 38 210 240 2,100 -- <br /> IWI 11/01/94 780 2864 -2084 000 36 <1 0 170 220 1,900 -- <br /> IW 1 02/17/95 780 2603 -1823 000 73 <25 410 470 5,000 -- <br /> 1W 1 05/11/95 780 2347 -1567 000 58 <10 350 400 4,700 -- <br /> 1W 1 08/24/95 780 2481 -1701 000 67 5 4 430 420 4,100 -- <br /> IW 1 10/19/95 7 80 25 35 -1755 000 29 <5 0 370 370 4,000 43 <br /> IW 1 02/13/96 780 23 11 -1531 000 58 <5 0 370 390 5,400 -- <br /> IW 1 04/18/96 780 2080 -13 00 000 60 <5 0 470 450 6,100 38 <br /> 1W 1 08/08/96 7 80 2202 -1422 000 -- -- __ -- <br /> IW 1 11/04/96 7 80 2246 -1466 000 50 <5 0 320 290 3,800 <25 <br /> IW 1 02/03/97 7 80 1787 -1007 000 48 <5 0 300 310 4,300 71 <br /> 1W] 05/08/97 690 1752 -10 62 000 <2 5 <2 5 170 150 2,600 16 <br /> IW I 08/26/97 690 1931 -1241 000 17 <2 5 130 97 2,400 14 <br /> IW1 11/11/97 690 1985 -I2 95 000 30 <10 160 130 2,200 <50 <br /> IW 1 03/03/98 690 1411 -721 000 21 <5 0 220 170 2,900 <25 <br /> 1W 1 03/03/98 690 <5 9* <br /> IW 1 05/20/98 690 1415 -725 000 17 <10 160 93 2,600 <50 <br /> 1W 1 05/20/98 690 <2 0* <br /> 1W 1 08/19/98 690 1566 -876 000 12 <2 5 120 79 1,600 28 <br /> TW I 08/19/98 690 <4 0* <br /> g 1profec ts1739421masteAwplg090213942gw xis Page 1 of 41 <br />