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TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration 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 12/08/03 652 1843 -1191 000
<br /> MW9 03/02/04 652 1691 -1039 000 <0 5 <0 5 <0 5 <0 5 <50 h 17
<br /> MW9 03/02/04 652 <0 5*
<br /> MW9 06/28/04 652 18 14 -1162 000 -- -- -- __ --
<br /> MW9 09/27/04 652 1902 -1250 000
<br /> MW9 12/01/04 652 1859 -1207 000
<br /> MW9 03/24/05 652 1666 -1014 000 -- -- -- -- __ --
<br /> MW9 03/25/05 652 -- -- -- <0 5 <0 5 <0 5 <0 5 <50 h 14
<br /> MW9 03/25/05 652 0 90*
<br /> MW9 06/22/05 652 1685 -1033 000 - - -- -- __ -
<br /> MW 10 04/11/88 861 23 18 -1457 000 640 130 170 140 3,100 --
<br /> MW10 09/13/88 861 2585 -1724 000 4,800 130 340 240 7,700 --
<br /> MW10 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 /> MW10 05/31/89 861 2744 -1883 000 11,000 320 1,600 800 24,000 --
<br /> MW 10 08/17/89 861 2945 -2084 000 12,000 2,100 3,100 2,500 35,000 --
<br /> MW10 03/21/90 861 Not accessible -- __ __ __ _-
<br /> MW10 05/17/90 861 Not accessible -- -- __ __ __ _-
<br /> MW 10 06/27/90 861 3252 -2391 000 9,700 4,800 2,400 5,300 51,000 --
<br /> MW 10 09/25/90 861 3395 -2534 000 13,000 9,900 2,700 8,900 71,000 --
<br /> MW 10 12/19/90 861 3379 -25 18 000 16,000 16,000 3,300 11,000 81,000 --
<br /> MW10 01/30/91 861 3424 -2563 000 18,000 15,000 2,600 9,900 62,000 --
<br /> MW 10 05/02/91 861 3424 -2563 000 6,900 5,700 2,100 5,900 27,000 --
<br /> MW10 07/16-17/91 861 35 13 -26 52 a 000 -- -- _- __ __
<br /> MW10 10/15/91 861 Dry
<br /> MW 10 01/28/92 8 61 3386 -2525 000
<br /> MW 10 04/30/92 $61 33 52 -2491 000
<br /> MW10 08/13/92 861 3500 -2639 000
<br /> MW 10 10/08/92 861 Dry __ __ __ -_
<br /> MW10 02/23/93 861 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 /> MW 10 08/22/93 861 31 70 -2309 000 7,800 15,000 1,700 7,900 66,000 --
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