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<br /> TABLE 2 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 /> V4 12/02/04 812 -- -- -- 260 9,660 1,780 7,950 47,900 h 156
<br /> V4 12/02/04 812 <25*
<br /> V4 03/24/05 812 1870 -1058 000 - -- -- -- -- --
<br /> V4 03/25/05 812 -- -- -- 320 14,300 2,760 11,600 68,600 h <10
<br /> IP l A 09/27/04 -- -- -- -- -- -- --
<br /> IP1A 09/28/04 -- -- -- -- 2,610 14,400 2,590 13,300 78,000 h <0 5*
<br /> IP1A 12/03/04 -- -- -- -- 1,980 18,900 5,920 28,800 250,000 h 360
<br /> IP 1 A 12/03/04 <50*
<br /> IP1A 03/25/05 793 - - -- 924 5,790 1,790 6,480 55,200 h 154
<br /> IPIA 03/25/05 <5*
<br /> IP1B 09/27/04 -- 2150 -- -- -- -- -- -- --
<br /> IP1B 09/28/04 -- -- -- -- 5,470 18,800 2,280 11,200 87,200 h <0 5*
<br /> IP1B 12/03/04 -- 2050 -- -- 7,760 25,000 2,930 14,500 154,000 h 100
<br /> IP 1 B 12/03/04 <50*
<br /> IP1B 03/25/05 802 -- - - 4,800 19,200 2,710 17,400 99,400 h <50
<br /> IP2A 09/27/04 -- -- -- -- -- -- -- -- -- --
<br /> IP2A 09/28/04 -- -- -- -- 570 13,300 2,490 11,600 67,800 h <0 5*
<br /> IP2A 12/03/04 -- -- -- -- 850 4,470 1,720 8,220 46,300 h 250
<br /> IP2A 12/03/04 <25*
<br /> IP2A 03/25/05 755 -- -- 112 2,590 1,700 10,700 41,600 h 580
<br /> IP2A 03/25/05 <5*
<br /> IP2B 09/27/04 -- -- -- -- -- -- --
<br /> IP2B 09/28/04 -- -- -- -- 460 17,600 3,270 15,200 94,100 h <0 5*
<br /> IP2B 12/03/04 -- 2090 -- -- 595 18,700 4,580 19,700 162,000 h 370
<br /> IP2B 12/03/04 <50*
<br /> IM 03/25/05 7 61 -- -- - 545 11,900 4,360 12,200 104,000 h <25*
<br /> IP3A 09/27/04 -- -- -- -- -- -- -- -- -- --
<br /> IP3A 09/28/04 -- -- -- -- -- -- --
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