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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(Ng/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br />' Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW l 1 04/30/92 1015 37 72 -2757 000 <0 5 <0 5 <0 5 <0 5 <50 <br /> MWI 1 08/13/92 10 15 3994 -2979 000 <0 5 <0 5 <0 5 <0 5 <50 MWI 1 10/08/92 10 15 4070 -3055 0 00 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> M W 11 02/23/93 10 15 3728 -27 13 000 <0 5 <0 5 <0 5 <0 5 <50 <br /> MWI 1 05/18/93 1015 <br /> M W 1 1 08/22/93 10 15 36 19 -2604 000 <br /> MW I l 12/30/93 10 15 Not accessible -- __ <br /> MWI 1 11/11/97 1015 2483 -1468 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MWI l 11/11/97 10 15 <2 0* <br /> MWI 1 03/03/98 10 15 2011 -996 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MWI 1 03/03/98 10 15 <2 5 <br /> MW 11 05/20/98 10 15 1858 -843 0 00 <0 5f <0 5f <0 5f <0 5f <50f <2 5f <br /> MW11 05/20/98 1015 <20* <br /> MWI 1 08/19/98 1015 1994 -979 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MWI 1 08/19/98 1015 <2 0* <br /> M W l l 11/18/98 10 15 2028 -10 13 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MWI l 03/30/99 10 15 1826 -8 11 000 <br /> MWI l 05/05/99 10 15 1848 -833 000 <0 5 <0 5 <0 5 <0 5 <50 <2 0 <br /> MWI 1 08/20/99 10 15 <br /> MWI 1 12/06/99 10 15 2037 -1022 000 <br /> MWI 1 02/29/00 10 15 1929 -8 14 000 <1 <1 <1 <1 <50 <1 <br /> MWI 1 05/16/00 10 15 1849 -834 000 <br /> M W I 1 09/11/00 10 15 <br /> MWI 1 12/13/00 1015 <br /> MW 1 l 03/08/01 10 15 - <br /> M W l 1 06/21/01 1015 <br /> MWI 1 09/20/01 1015 2203 -1188 000 48 18 23 155 58 <05 <br /> M W 1 1 11/08/01 10 15 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> MWI 1 12/04/01 5 84 `- <br /> MWI l 03/06/02 5 84 2087 -1503 000 <0 5 <0 5 <0 5 <0 5 <50 h 0 80 <br /> MWI 1 03/06/02 5 84 1 02* <br /> MWI 1 06/11/02 5 84 <br /> b�proJects1739421mastcrlµp%g03O3U942gwx1s <br /> Page 21 of 47 <br />