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<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 7,2- Meat- Eth- Ace Dissolved
<br /> Elevation Date Benzene Toluene Benzene Xylene TPHg 8020 MtBE TBA DIPE EtBE TAME DCA EDB anol anol tone Notes Oxygen DTW SPT WTE
<br /> TOC 1L !L L L IL IL L L 1LI(lig/L) 1L 1L 1L 1L !L rit 1L feet feet feet
<br /> MW-3
<br /> 105 08/28/99 940 510 360 1,600 8,400 -- 110 <200 <50 <50 <50 - - - - - - 895 000 -790
<br /> 11/24/99 714 439 507 1,940 7,280 484 404 <40 <10 <10 <10 - - - - - 11 972 000 -867
<br /> 02/02100 754 403 845 2,950 13,800 127 321 <100 <25 <25 <25 -- - -- - - 13 1013 000 -908
<br /> 05/16/00 1,400 1,300 1,200 5,400 17,000 - 300 <250 <10 <10 <10 - - - - - 10 724 000 -619
<br /> 08108100 1,100 730 1,200 4,400 18,000 - 200 <120 <5 <5 <5 - - - - - 03 870 000 -765
<br /> 11/15/00 360 260 440 1,600 3,100 - 600 <500 <20 <20 <20 - -- -- - - 05 884 000 -779
<br /> 02/07/01 940 950 1000* 4,300 24,000 - 250 <250 <10 <10 <10 - - - - - 07 785 000 -680
<br /> 05/23/01 370 230 470 1,700 6,200 - 110 <250 <10 <10 <10 - - - - - 09 777 000 -672
<br /> 09/25/01 240 140 290 900 5,100 - 800 <200 <50 <50 <50 - - - - - 07 973 000 -868
<br /> 11/05/01 230 140 370 1,000 5,800 - <200 1,500 <50 <50 <50 <50 <50 <50 <50 <50 09 962 000 -857
<br /> 01/08/02 830 820 1,300 4,540 21,000 - 570 <200 <50 <50 <50 - - -- - - 08 652 000 -547
<br /> 04/12/02 620 540 700 2,500 14,000 290 280 55 <5 <5 <5 - - - - - 0 7 712 000 -607
<br /> 07/09/02 490 530 610 2,200 13,000 150 210 160 <5 <5 <5 - - - - - 09 735 000 -630
<br /> 10/16/02 80 31 130 260 2,200 <50 19 11 <0 5 <05 <0 5 - - - - - 0 9 884 000 -779
<br /> 03/17/03 73 420 940 3,200 22,000 - <10 <100 <10 <10 <10 - - - - - 1 4 641 000 -536
<br /> 05/29/03 29 480 1,000 4,300 27,000 -- <10 <100 <10 <10 <10 -- - - - - 09 663 000 -558
<br /> 108 09118/03 <10 76 440 2,000 15,000 - <10 <100 <10 <10 <10 <10 <10 <1,000 <100 <100 09 790 000 -682
<br /> 12102/03 25 23 350 1,300 16,000 - <2 5 <25 <2 5 <2 5 <2 5 <2 5 <2 5 <250 <26 - 07 842 000 -734
<br /> 03103/04 62 31 440 1,600 14,000 - <2 5 <25 <2 5 <2 5 <2 5 <2 5 <2 5 -- - - 03 609 000 -501
<br /> 06/09/04 35 65 730 2,200 18,000 - <2 5 <25 <2 5 <25 <2 5 <2 5 <2 5 -- -- - 02 734 000 -626
<br /> 09/16/04 20 23 370 1,000 9,500 <2 0 <90 <2 0 <2 0 <2 0 <2 0 <2 0 19 903 000 -795
<br /> 117-Eleven%7-11 Stores11411 Uablest14117 Current Groundwater AsHrstoncal Water Page 3 of 6
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