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Mill 11111111110 ® I• <br /> 0 • 0 <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORN-IA <br /> Casing Depth Groundwater LPH Concentration(a /g L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes_ TPH-g MTBE <br /> RW4 03/05/02 786 1865 -1079 000 -- -- _- __ <br /> RW4 03/06/02 786 -- -- 198 740 316 304 2,350 h 200 <br /> RW4 03/06/02 786 <0 5* <br /> SWI 02/17/94 -- Not accessible since 02/17/94 <br /> SWI 02/17/95 -- 2801 Air sparging well -samples not collected <br /> SWI 05/11/95 -- -- Air sparging well--samples not collected <br /> SWI 08/24/95 -- -- Air sparging well--samples not collected <br /> SWI 10/19/95 - -- Air sparging well--samples not collected <br /> SWI. 02/13/96 -- -- Air sparging well--samples not collected <br /> SWI 04/18/96 -- Air sparging well--samples not collected <br /> j SWI 08/08/96 -- Air sparging well--samples not collected <br /> SWI. 11/04/96 -- 2424 000 2,400 3,100 290 2,800 25,000 X250 <br /> SWI 02/03/97 - __ <br /> SWI 05/08/97 <br /> SWI, 08/26/97 <br /> SWI 11/11/97 -- -- __ <br /> -- -- -- -- -- -- -- <br /> SWI. 03/03/98 <br /> -- -- -- -- -- <br /> SWI 05/2019$ -- -- -- -- -- __SWI 08/19/98 <br /> SWI, 11/18/98 <br /> SWI. 03/30/99 <br /> SWI 05/05/99SWI 08/20/99 <br /> SWI 12/06/99 <br /> SWI. 02/29/00 - <br /> S W 1 05/16/00 <br /> SWI 09/11/00SWI 12/13/00 <br /> -- -- -- -- --SWI 03/08/01 <br /> -- -- -- -- -- -- -- <br /> SWI. 06/21/01 <br /> SWI. 09/20/01 -- <br /> SWI <br /> -SWi 12/04/01 825 <br /> SW1 03/05/02 825 -- <br /> g 1pmjects1739421masleAwp1gO3O213942gw As Page 30 of 39 <br />