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TABLE ] 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 /> No Date (feet msl) (feet) (feet ms]) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW I 1 04/30/92 10 15 3772 -2757 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 08/13/92 3994 -2979 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 10/08/92 4070 -3055 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 02/23/93 3728 -27 13 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 05/18/93 -- _- <br /> 08/22/93 36 19 -2604 000 <br /> 12/30/93 Not accessible __ __ <br /> 11/11/97 24 83 -1468 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 11/11/97 <br /> <2 0* <br /> 03/03/98 20 11 -996 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 03/03/98 <2 0* <br /> 05/20/98 1858 -843 000 <0 5f <0 5f <0 5f <0 5f <50f <2 5f <br /> 05/20/98 <br /> <2 0* <br /> 08/19/98 1994 -979 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 08/19/98 <br /> <2 0* <br /> 11/18/98 2028 -10 13 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 03/30/99 1826 -8 11 000 -- -- __ __ <br /> 05/05/99 1848 -833 000 <0 5 <0 5 <0 5 <0 5 <50 <2 0 <br /> 08/20/99 -- __ -- <br /> 12/06/99 2037 -1022 000 -- -- __ __ <br /> 02/29/00 1829 -8 14 000 <1 <1 <1 <1 <50 <1 <br /> 05/16/00 1849 -8 34 000 -- __ -- <br /> 09/11/00 -- -- -- <br /> MW12 01/30/91 9 16 3539 -2623 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 05/02/91 3545 -2629 000 <0 3 <0 3 <0 3 <1 <50 -- <br /> 07/16-17/91 3637 -2721 000 <0 5 <0 5 <0 5 <0 5 <50 - <br /> 10/15/91 3695 -2779 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 01/28/92 3521 -2605 000 <0 5 0 6 <0 5 0 7 <50 -- <br /> 04/30/92 3483 -2567 000 <0 5 <0 5 <0 5 <0 5 <50 <br /> 08113/92 3682 -2766 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> f tipiojetisU39421masteAwp1g9ODU942bw AS Pabe 17 of 37 <br />