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<br /> TABLE I GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration(µg/L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date (feet) (feet) (feet)_ (feet) Benzene Toluene benzene Xylenes _TPH-g MTBE
<br /> MW9 03/05/02 652 1600 -948 000 -- -- -- -- -- --
<br /> MW9 03/06/02 652 -- -- -- <0 5 <0 5 <0 5 <0 5 101 h 102
<br /> MW9 03/06/02 652 150*
<br /> MW9 06/11/02 652 -- -- -- -- -- -- -- -- --
<br /> MW9 09/10/02 652 1772 -1120 000 -- -- -- -- -- --
<br /> MW9 12/18/02 652 1738 -1086 000 -- -- -- -- -- --
<br /> MW 10 04/11/88 861 23 18 -1457 000 640 130 170 140 3,100 --
<br /> MW I O 09/13/88 861 2585 -1724 000 4,800 130 340 240 7,700 --
<br /> M W 10 11/16/88 861 2608 -1747 000 5,800 290 700 340 9,400 --
<br /> MW 10 02/09/89 861 2570 -1709 000 7,500 450 220 320 8,800 --
<br /> MWIO 05/31/89 861 2744 -1883 000 11,000 320 1,600 800 24,000 --
<br /> MW 10 08/17/89 861 2945 -20 84 000 12,000 2,100 3,100 2,500 35,000 --
<br /> MW 10 03/21/90 861 Not accessible -- -- -- -- _-
<br /> MW 10 05/17/90 861 Not accessible -- -- -- -- -- --
<br /> MWiO 06/27/90 861 3252 -23 91 000 9,700 4,800 2,400 5,300 51,000 --
<br /> M W 10 09/25/90 861 33 95 -2534 000 13,000 9,900 2,700 8,900 71,000 --
<br /> MW 10 12/19/90 8 61 3379 -25 18 000 16,000 16,000 3,300 11,000 81,000 --
<br /> MW 10 01/30/91 861 3424 -25 63 000 18,000 15,000 2,600 9,900 62,000 --
<br /> MW 10 05/02/91 861 3424 -2563 0 00 6,900 5,700 2,100 5,900 27,000 --
<br /> MW 10 07116-17191 861 35 13 -26 52 a 000 -- -- -- -- -- --
<br /> M W 10 10/15/91 8 61 Dry -- -- -- -- --
<br /> MWIO 01/28/92 861 33 86 -25 25 0 00 -- -- -- -- --
<br /> MW 10 04/30/92 861 33 52 -24 91 0 00 -- -- -- -- -- --
<br /> MW IO 08/13/92 8 61 3500 -2639 000 -- -- -- -- --
<br /> M W 10 10/08/92 861 Dry -- -- -- -- -- --
<br /> MW 10 02/23/93 8 61 3285 -2424 000 1,100 17,000 3,300 15,000 91,000 --
<br /> MW 10 05/18/93 861 3132 -2271 000 6,200 9,200 1,400 5,300 44,000 --
<br /> M W 10 08/22/93 861 31 70 -2309 000 7,800 15,000 1,700 7,900 66,000
<br /> MW 10 12/30/93 861 3079 -22 18 000 -- -- -- -- --
<br /> MW 10 02/17/94 861 3025 -21 64 000 870 1,300 310 770 9,400 --
<br /> MW 10 05/10/94 8 61 2975 -21 12 000 1,400 3,800 470 1,700 21,000 --
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