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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-a MTBE
<br /> MW7 12/08/03 680 18 74 -1194 000 -- -- -- -- -- --
<br /> MW7 03/02/04 680 1724 -1044 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5
<br /> MW7 06/28/04 6 80 1839 -1159 000 -- -- -- -- -- --
<br /> MW7 09/27/04 6 80 19 18 -1238 000 -- -- -- -- -- --
<br /> MW7 12/01/04 6 80 1891 -1211 000 -- -- -- -- -- --
<br /> MW7 03/24/05 680 1705 -1025 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5
<br /> MW7 06/22/05 680 1703 -1023 000 -- - -- - - --
<br /> MW8 04/11/88 778 2025 -1247 000 740 18,000 5,700 32,000 120,000 --
<br /> MW8 09/13/88 7 78 2258 -1480 000 470 11,000 3,900 20,000 56,000 --
<br /> MW8 11/16/88 778 2272 -1494 000 <500 9,300 3,600 16,000 63,000 --
<br /> MW8 02/09/89 7 78 2228 -1450 000 650 13,000 3,900 21,000 62,500 --
<br /> MW8 05/31/89 7 78 23 95 -1617 000 460 8,700 3,700 24,000 66,000 --
<br /> MW8 08/17/89 7 78 2549 -1771 000 620 10,000 5,500 25,000 72,000 --
<br /> MW8 12/19/89 7 78 2660 -1882 000 190 2,800 1,100 5,300 21,000 --
<br /> MW8 03/21/90 778 2711 -1933 000 880 11,000 4,400 22,000 63,000 --
<br /> MW8 05/17/90 7 78 2787 -2009 000 520 5,500 3,900 20,000 67,000 --
<br /> MW8 09/25/90 7 78 2917 -2139 000 -- -- -- -- __
<br /> MW8 12/19/90 778 2913 -21 35 000 -- -- -- -- -- __
<br /> MW8 01/30/91 7 78 Dry -- _- _- __ __
<br /> MW8 05/02/91 778 2939 -2161 000 830 5,900 4,900 23,000 57,000 --
<br /> MW8 07116-17191 7 78 2990 -22 12 a 000 -- -- -- -- -- --
<br /> MW 8 10/15/91 778 Dry
<br /> MW8 01/28/92 778 2931 -2153 000
<br /> MW8 04/30/92 778 2884 -2106 a 000
<br /> MW8 08/13/92 778 2991 -22 13 a 000 -- -- -- -- --MW8 10/08/92 778 Dry -- -- __ -- __
<br /> MW8 02/23/93 778 28 13 -2035 000 1,100 5,400 3,300 11,000 49,000 --
<br /> MW8 05/18/93 778 2671 -1893 000 850 5,800 3,400 13,000 53,000 --
<br /> MW8 08/22/93 7 78 2695 -1917 000 650 4,400 3,500 13,000 52,000 --
<br /> MW8 12/30/93 7 78 2639 -1861 000 820 6,200 4,200 14,000 50,000 --
<br /> MW8 02/17/94 778 2610 -1832 000 510 3,800 3,400 13,000 44,000 --
<br /> MW8 05/10/94 7 78 25 83 -1805 000 520 4,200 3,800 13,000 49,000 --
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