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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(EEL)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> UVB-MW1 06/11/02 740 18 18 -1078 Sheen 8,440 19,100 2,620 13,600 108,000 h <100
<br /> UVB-MW 1 09/10/02 740 1949 -1209 Sheen 9,460 13,700 2,830 13,700 110,000 h 160
<br /> UVB-MWI 09/10/02 740 <50*
<br /> UVB-MWI 12/18/02 740 1922 -1182 000 11,600 27,500 3,600 17,400 122,000 h 460
<br /> UVB-MW1 12/18/02 740 <100*
<br /> UVB-MW 1 03/24/03 740 1858 -11 18 000 7,580 16,800 2,420 12,200 110,000 h <50
<br /> UVB-MW 1 06/11/03 740 1879 -1139 Sheen 8,620 19,000 3,240 15,600 106,000 h 420
<br /> UVB-MWI 06/11/03 740 <5*
<br /> UVB-MW1 09/17/03 740 2025 -1285 000 10,600 22,700 4,100 19,200 129,000 h 280
<br /> UVB-MWI 09/17/03 740 <5*
<br /> UVB-MWI 12/08/03 740 2047 -1306 001 10,000 19,400 3,750 16,500 140,000 h 550
<br /> UVB-MWI 12/08/03 740 <5*
<br /> UVB-MWI 03/02/04 740 1869 -1129 000 6,500 11,900 2,130 11,500 80,300 h <50*
<br /> UVB-MWI 06/28/04 740 19 92 A252 000 -- -- -- -- --
<br /> UVB-MW I 06/29/04 740 -- -- -- 10,300 17,400 3,630 17,100 121,000 h <0 5
<br /> UVB-MWI 09/27/04 740 2087 -1347 000 -- -- -- -- -- --
<br /> UVB-MW I 09/28/04 740 -- -- -- 8,500 18,000 4,460 22,000 131,000 h <0 5
<br /> UVB-MWI 12/01/04 740 2050 -13 10 000 -- -- -- -- -- --
<br /> UVB-MWI 12/02/04 740 -- -- -- 5,020 8,790 1,240 6,890 63,300 h <50
<br /> UVB-MWI 03/24/05 740 1863 -1123 000 9,160 24,300 3,330 17,000 143,000 h 395
<br /> UVB-MWI 03/24/05 740 <10*
<br /> UVB-MW 1 06/22/05 740 18 62 -1122 000 -- -- -- -- -- --
<br /> UVB-MW 1 06/23/05 740 -- -- -- 11,400 26,800 4,010 21,600 143,000 h 180
<br /> UVB-MWI 06/23/05 740 <200*
<br /> UVB-MWI 10/12/05 740 2031 -1291 000 -- -- -- -- -- --
<br /> UVB-MWI 10/13/05 740 -- -- -- 12,000 30,000 4,400 22,000 140,000 h <2,500
<br /> UVB-MWI 12/22/05 740 1982 -1242 000 11,000 27,000 4,000 20,000 120,000 h <2,500
<br /> UVB-MW2 02/28/97 7 75 1796 -- 000 200 1,100 190 1,700 9,400 <2 5
<br /> UVB-MW2 05/08/97 7 75 1994 -12 19 000 092 <0 5 <0 5 17 58 3 0
<br /> UVB-MW2 d 08/26/97 7 75 2087 -13 12 000 12,000 23,000 2,700 13,000 120,000 1,300
<br /> UVB-MW2 10/02/97 7 75 -- -- -- <0 5 <0 5 <0 5 <0 5 <50 <2 5
<br /> UVB-MW2 11/11/97 775 2143 -1368 000 <0 5 099 066 4 1 <50 <2 5
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