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�.... >� � �■ � ate■ � � �■■ � � J• � � � � � <br /> TABLE i 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 msl) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW 11 05/18/93 10 15 -- -- -- <br /> 08/22/93 36 19 -2604 000 <br /> 12/30/93 Not accessible -- -- <br /> 11/11/97 2483 -1468 000 <05 <05 <05 <05 <50 <25 <br /> 11/11/97 <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 <2 0* <br /> 08/19/98 1994 -979 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 08/19/98 <2 0* <br /> 11/18/98 2028 -1013 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 <05 <05 <05 <05 <50 <20 <br /> 08/20/99 -- -_ <br /> 12/06/99 2037 -1022 000 -- -- -- <br /> 02/29/00 1829 -8 14 000 <1 <1 <1 <1 <S0 <1 <br /> 05/16/00 1849 -834 000 -- -- -- -- <br /> 09/11/00 -- __ <br /> 12/13/00 -- -- <br /> I <br /> MW 12 01/30/91 9 16 35 39 -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 /> 07116-17/91 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 -25 67 000 <0 5 <0 5 <0 5 <0 5 <50 -- <br /> 1 tprojects1739421masterlwplq]200U942gw xls Page 20 of 43 <br />