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now EM <br /> TABLE 1 GROUNDWATER MONITORING DATA, FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration (ug/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 /> MW6 03/30/99 748 -- -- -- -- __ -- -- _- <br /> 05/05/99 15 58 -810 000 <0 5 <0 5 <0 5 <0 5 <50 <2 0 <br /> 08/20/99 1681 -933 000 -- -- -- -- -- -- <br /> 12/06/99 1370 -622 000 <1 <1 <1 <1 <50 <1 <br /> 02/29/00 1496 -748 000 <1 <1 <1 <1 <50 <1 <br /> 05/16/00 1478 -730 000 <1 <1 <1 <1 <50 <1 <br /> 09/11/00 1718 -970 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> 12/13/00 17.05 -957 000 <0 5 <0.5 <0.5 <0.5 140 <0 5 <br /> MW7 07/16/87 835 18 11 -976 000 78 35 32 678 1,000 -- <br /> 04/11/88 2121 -1286 000 26 <2 0 10 <40 1,200 <br /> Well dry since 07/12/88 <br /> Not accessible since 12/30/93 <br /> 05/11/95 Well dry -- -- -- -- __ <br /> 08/24/95 Well dry -- -- -- -- __ <br /> 10/19/95 Well dry -- -- -- -- -- -- <br /> 02/13/96 Well dry -- -- -- -- -- -- <br /> 04/18/96 Well dry -- -- -- -- -- <br /> 08/08/96 2160 -1325 000 -- -- -- -- -- -- <br /> 11/04/96 2250 -14 15 000 -- -- -- -- -- -- <br /> 02/03/97 1758 -923 000 <0 5 <0 5 <0 5 <0 5 71 <2 5 <br /> 05/08/97 6 85 1731 -1046 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> 08/26/97 2009 -1324 000 -- -- -- -- -- -- <br /> 11/11/97 Well dry -- -- -- -- -- -- <br /> 03/03/98 13 85 -700 000 <0 5 <0 5 <0 5 <0 5 79c <2 5 <br /> 03/03/98 <2 0* <br /> 05/20198 1398 -7 13 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> f 1projects1739421masterl%q)Iq I MW942gw As Page 12 of 43 <br />