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Table 2
<br /> Historical Groundwater Monitoring and Analytical Data
<br /> 7-Eleven Store#14117
<br /> 2725 Country Club Boulevard
<br /> Stockton,CA
<br /> Well IDI Ethyl- MtBE 1,2- Meth- Eth- Ace- Dissolved
<br /> Elevation Date Benzene Toluene Benzene Xylene TPHg 8020 MtBE TBA DIPE EME TAME DCA EDB anoI anol tone Notes Oxygen DTW SPT WTE
<br /> OC IL IL /L /L /L /L /L IL /L /L /L /L /L /L pgILl (ma/L feet feet feet
<br /> MW-3
<br /> 1.05 08/28/99 940 510 360 1,600 8,400 - 110 <200 <50 <50 <50 -- - - - 8.95 0.00 -7.90
<br /> 11/24/99 714 439 507 1,940 7,280 484 404 <40 <10 <10 <10 -- -- -- 1.1 9.72 0.00 -8.67
<br /> 02/02/00 754 403 845 2,950 13,800 127 321 <100 <25 <25 <25 -- -- - 1.3 10.13 0.00 -9.08
<br /> 05/16/00 1,400 1,300 1,200 5,400 17,000 300 <250 <10 <10 <10 -- - - 1.0 7.24 0.00 -6.19
<br /> 08/08/00 1,100 730 1,200 4,400 18,000 - 200 <120 <5 <5 <5 -- -- - -- - 0.3 8.70 0.00 -7.65
<br /> 11/15/00 360 260 440 1,600 3,100 600 <500 <20 <20 <20 - - 0.5 8.84 0.00 -7.79
<br /> 02/07/01 940 950 1000" 4,300 24,000 -- 250 <250 <10 <10 <10 -- -- - - 0.7 7.85 0.00 -6.80
<br /> 05/23/01 370 230 470 1,700 6,200 - 110 <250 <10 <10 <10 -- - -- 0.9 7.77 0.00 -6.72
<br /> 09/25/01 240 140 290 900 5,100 -- 800 <200 <50 <50 <50 - -- -- - 0.7 9.73 0.00 -8.68
<br /> 11/05/01 230 140 370 1,000 5,800 <200 1,500 <50 <50 <50 <50 <50 <50 <50 <50 0.9 9.62 0.00 -8.57
<br /> 01/08/02 830 820 1,300 4,540 21,000 -- 570 <200 <50 <50 <50 - -- -- 0.8 6.52 0.00 -5.47
<br /> 04/12/02 620 540 700 2,500 14,000 290 280 55 <5 <5 <5 - 0.7 7.12 0.00 -6.07
<br /> 07/09/02 490 530 610 2,200 13,000 150 210 160 <5 <5 <5 - -- -- 0.9 7.35 0.00 -6.30
<br /> 10/16/02 80 31 130 260 2,200 <50 19 11 <0.5 <0.5 <0.5 -- - - 0.9 8.84 0.00 -7.79
<br /> 03/17/03 73 420 940 3,200 22,000 <10 <100 <10 <10 <10 - - -- -- 1.4 6.41 0.00 -5.36
<br /> 05/29/03 29 480 1,000 4,300 27,000 -- <10 <100 <10 <10 <10 -- - -- 0.9 6.63 0.00 -5.58
<br /> 1.08 09/18/03 <10 76 440 2,00015,000 -- <10 <100 <10 <10 <10 <10 <10 <1,000 <100 <100 0.9 7.90 0.00 -6.82
<br /> 12/02/03 2.5 23 350 1,300 16,000 -- <2.5 <25 <2.5 <2.5 <2.5 <2.5 <2.5 <250 <25 0.7 8.42 0.00 -7.34
<br /> 03/03/04 6.2 31 440 1,600 14,000 - <2.5 <25 <2.5 <2.5 <2.5 <2.5 <2.5 -- -- 0.3 6.09 0.00 -5.01
<br /> it
<br /> I
<br /> I:\7-Eleven\7-11 Stores\14117\Tables\14117 04-1Q.xlsHistorical Water Page 3 of 6
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