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Table 2 <br /> Histoncal Groundwater Monitoring Data <br /> 7-Eleven Stare No 20632 <br /> 4627 DaVinci Drive <br /> Stockton,California <br /> Well ID/ Ethyl- MTBE MTBE Dissolved <br /> Elevation Benzene Toluene Benzene Xylene TPH-G 8020 $260 TBA DIPE ETBE TAME Oxygen DTW SPT WTE <br /> (TOC) Date (Ng/L) (pg/L) (Pg/L) (Ng/L) (ug/L) (µglL) (Ng/L) (Ng/L) (Ng/L) (pg/L) (pgIL) (mg1L) (feet) (feet) (feet) <br /> MW-3 cont <br /> 08/28/99 <0 3 <0 3 <03 <0 6 50 -- <5 <20 <5 <5 <5 09 795 000 -513 <br /> 11/24/99 <0 3 <0 3 <03 <0 6 95 896 <5 <20 <5 <5 <5 13 770 000 -488 <br /> 02/02/00 <0 3 <0 3 <03 <06 <50 <5 649 <20 <5 <5 <5 12 656 000 -374 <br /> 05/16/00 <5 49 640 2,000 9,500 -- <1 <50 <2 <2 <2 06 660 000 -378 <br /> 08/08/00 <2 5 <2 5 340 110 4,100 - <1 <50 <2 <2 <2 06 760 000 -478 <br /> 11/15/00 66 <5 500 270 3,300 - <10 <500 <20 <20 <20 04 700 000 -418 <br /> 02/07/01 98 <2 5 160* 75 1,700 - <1 0 <50 <2 <2 <2 07 687 000 -405 <br /> 05/23/01 <1 17 140 E 120 -- - <1 <25 <2 <2 <2 07 719 000 -437 <br /> 08/21/01 12 23 260 340 4,300 -- <10G <500 G <20 G <20 G <20 G 09 783 000 -501 <br /> 11/05/01 17 15 220 260 3,300 - <5 <20 <5 <5 <5 07 765 000 -483 <br /> 01/09/02 <5 <5 199 282 1,570 -- <10 <20 <5 <5 <5 07 532 000 -250 <br /> 04/10/02 <5 14 180 110 3,800 <50 6 <5 <0 5 <0 5 <0 5 09 720 000 -438 <br /> 07/10/02 084 11 180 200 3,300 <10 78 <5 <0 5 <0 5 <0 5 09 760 000 -478 <br /> 10/16/02 <1 7 64 140 170 2,700 28 37 <10 <1 <1 <1 0 9 7 85 000 -503 <br /> MW-4 <br /> 2 58 10117/97 610 760 320 2,800 20,000 18,000 23,000 - - - - -- 804 000 -546 <br /> 03/22/98 81 56 32 27 2,600 -- 26,000 ND ND ND ND 03 627 000 -369 <br /> 06/15/98 700 20 170 73 22,000 -- 17,006 <5,000 <250 <250 <250 21 647 000 -389 <br /> 08114/98-Well Abandoned <br /> MWAR <br /> 04/10/02 330 31 120 480 3,700 4,200 6,900 230,000 <500 <500 <500 61 672 000 - <br /> 2 37 07/10/02 340 28 210 490 4,500 3,300 5,700 370,000 <1,000 <1,000 <1,000 1 5 715 000 -478 <br /> 10/16/02 49 16 40 50 980 1,300 1,500 150,000 <1,000 <1,000 <1 000 14 730 000 -493 <br /> MW-5 <br /> 257 02/17/99 85 <1 30 110 890 49 62 <20 <5 <5 <5 07 579 000 -322 <br /> 05/21/99 242 086 141 172 220 -- 188 <20 <5 <5 <5 09 7 00 000 -4 43 <br /> 08/28/99 366 <0 3 32.1 348 296 -- 64 <20 <5 <5 <5 08 670 000 -413 <br /> 11/24/99 214 129 142 149 257 269 281 <20 <5 <5 <5 1 1 750 0 00 93 <br /> 02/02/00 296 <0 3 265 063 284 353 761 <20 <5 <5 <5 1 1 650 0 00 <br /> 7-11120632 tbl xls 3 of 4 11-04-02 <br /> I <br />