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BMW ask �� a�� �� �� ! >• 1• >• <br /> i <br /> TABLE 1 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942, 4444 NORTH PERSHING AVENUE, STOCXTON, 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 /> MW3 03/03/98 854 <2 0* <br /> 05/20/98 1602 -748 000 14 <0 5 <0 5 <0 5 170 <2 5 <br /> 05/20/98 <2 0* <br /> 08/19/98 1748 -894 000 5 9 2 2 <0 5 063 280 2 6 <br /> 08/19/98 <2 0* <br /> 11/18/98 1793 -939 000 <05 <05 <05 <05 <50 <25 <br /> 03/30/99 -- -- -- -- -- -- -- -- -- <br /> 05/05/99 1640 -786 000 <0 5 <0 5 <0 5 <0 5 <50 <2 0 <br /> 08/20/99 17 85 -931 000 -- -- -- __ __ _- <br /> 12/06/99 1802 -948 000 <br /> 02/29/00 15 67 -7 13 000 <br /> 05/16/00 15 62 -708 000 -- -- -- __ <br /> 09/11/00 1798 -944 000 7 3 84 5 9 11 5 220 <0 5 <br /> 12/13/00 17.60 -906 000 3 4 11 1.8 83 90 <0 5 <br /> MW4 07/16/87 8 13 18 15 -1002 000 1,100 <50 850 1,750 4,900 -- <br /> 04/11/88 2123 -13 10 000 510 <25 490 1,100 8,500 -- <br /> 09/13/88 2366 -1553 000 860 40 670 2,400 5,600 -- <br /> 11/16/88 2381 -1568 000 860 340 810 1,000 8,000 -- <br /> 02/09/89 23 55 -1542 000 630 20 530 650 4,800 -- <br /> 05/31/89 2501 -16 88 000 790 35 720 1,300 6,000 -- <br /> 08/17/89 2650 -1837 000 1,000 45 940 1,100 8,100 -- <br /> 12/19/89 2757 -1944 000 190 2,800 1,100 380 7,900 -- <br /> 03/21/90 2806 -1993 000 400 6 8 340 160 3,200 -- <br /> 05/17/90 28 87 -2074 000 300 40 150 93 3,500 -- <br /> 01/28/92 Dry __ __ __ <br /> 04/30/92 2953 -2140 000 <br /> f�pro3ects173942Vmastenwplq 12000942ow xls Page 7 of 43 <br />