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�*� � � � � � � w � � � � � � MIC m <br /> TABLE 1 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942, 4444 N PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(gg/L) <br /> Will Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft msl) (ft) (ft MS I) (ft) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW4 11/18/98 7 18 1640 -922 000 <0 5 14 5 4 <0 5 770 c 15 <br /> 03/30/99 -- -- -- -- <br /> 05/05/99 1490 -772 000 <0 5 <0 5 1 14 <0 5 542 7 2 <br /> 08/20/99 1645 -927 000 14 0 151 <0 5 168 460 203 <br /> 12/06/99 16 55 -937 000 <1 <1 18 4 7 330 89 <br /> 02/29/00 14 12 -694 000 4 3 <1 <1 <1 100 7 <br /> 05/16/00 14 14 -696 000 1 9 <1 <1 <1 190 6 9 <br /> MWS 07/16/87 9 58 1669 -7 11 000 <10 480 280 1,390 2,200 -- <br /> 04/11/88 2286 -1328 000 <2 0 25 25 85 500 -- <br /> 09/13/88 25 33 -15 75 000 4 4 650 50 110 1,400 -- <br /> 11/16/88 25 31 -15 73 000 <1 3 19 25 24 910 -- <br /> 02/09/89 25 09 -15 51 000 3 4 12 15 22 1,250 -- <br /> 05/31/89 2672 -17 14 000 <0 5 14 24 46 790 -- <br /> 08/17/89 2844 -18 86 000 1 0 29 13 12 1,200 -- <br /> 12/19/89 2945 -1987 000 -- -- -- -- -- -- <br /> Well dry since 03/21/90 <br /> 12/30/93 2990 -2032 000 -- -- -- -- --02/17/94 2954 -1996 000 -- -- -- -- -- -- <br /> 05/10/94 29 13 -19 55 000 -- -- -- -- -- <br /> 08/02/94 Well dry -- -- -- -- -- -- <br /> 11/01/94 Well dry -- -- -- -- -- -- <br /> 02/17/95 2841 -18 83 000 -- -- -- -- -- <br /> 05/11/95 25 72 -16 14 000 14 1 2 7 5 4 8 350 -- <br /> 08/24/95 23 35 -13 77 000 <0 5 <0 5 072 15 85 -- <br /> 10/19/95 2720 -1762 000 <0 5 <0 5 1 1 1 1 85 <2 5 <br /> 02/13/96 Well dry -- -- -- -- -- -- <br /> 04/18/96 2200 -1242 000 <0 5 <0 5 <0 5 068 65 <2 5 <br /> 08/08/96 2422 -1464 000 -- -- -- -- -- -- <br /> 11/04/96 2468 -15 10 000 -- -- -- -- -- -- <br /> I�Iiinlc.pis1739421masitrlxp1Q50011942g%�\Is Page 9 of 37 <br />