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s� w� � �s � i•� � 1� � � 1• � � E• � � � <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON,CALIFORNIA <br /> Casing Depth Groundwater LPH _ Concentration(pg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-E MTBE <br /> MW8 02/29/00 645 1276 -631 000 31 110 1,100 2,330 10,000 42 <br /> MW8 05/16/00 645 1297 -652 000 -- -- -- __ <br /> MW8 09/11/00 645 -- -_ __ <br /> MW8 12/13/00 645 1520 -875 0 00 31 11 410 3675 4,200 37 <br /> MW8 12/13/00 645 22* <br /> MW8 03/08/01 645 1431 -786 000 15 44 880 1,545 13,000 19 <br /> MW8 06/21/01 645 1567 -922 000 13 61 240 580 5,700 17 <br /> MW8 06/21/01 645 22* <br /> MW8 09/20/01 645 1674 -1029 000 -- __ -- <br /> MW8 12/04/01 642 1648 -1006 000 <br /> MW8 03/05/02 642 1570 -928 000 -- __ <br /> MW8 03/06/02 642 -- -- -- 060 500 23 3 577 215 h <0 5 <br /> MW8 06/11/02 642 -- _ <br /> MW9 04/11/88 7 88 2081 -1293 000 <50 <50 <50 <50 2,100 <br /> MW9 09/13/88 7 88 23 14 -1526 0 00 85 67 100 90 35,000 -- <br /> MW9 11/16/88 788 2324 -1536 000 70 12 14 19 2,200 <br /> MW9 02/09/89 788 2279 -1491 000 12 1 6 4 1 3 4 800 <br /> MW9 05/31/89 7 88 2447 -1659 000 14 <0 5 12 1 3 540 -- <br /> MW9 08/17/89 788 2605 -18 17 000 5 <0 5 2 <0 5 <250 -- <br /> MW9 12/19/89 7 88 2697 -1909 000 66 1 1 <0 5 12 470 _- <br /> MW9 03/21/90 7 88 2745 -1957 000 84 1 0 2 1 3 7 160 <br /> MW9 05/17/90 7 88 2823 -2035 000 2 0 093 089 <0 5 120 -- <br /> MW9 09/25/90 788 Dry _- -- __ -- <br /> MW9 12/19/90 7 88 2933 -2145 000 <br /> MW9 01/30/91 7 88 Dry <br /> MW9 05/02/91 7 88 2945 -21 57 000 <br /> MW9 07/16-17191 7 88 2960 -21 72 a 000 <br /> MW9 10/15/91 788 Dry -- <br /> MW9 01/28/92 7 88 Dry <br /> MW9 04/30/92 788 2907 -21 19 000 <br /> MW9 08113192 7 88 2947 -2159 000 <br /> glprojects1739421masterlwp1gO64213942brwx[s Page 15 or43 <br />