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Table 2 <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store No 20632 <br /> 4627 DaVmci Drive <br /> E Stockton,California <br /> Well IDI Ethyl- MTBE MTBE Dissolved <br /> Elevation Benzene Toluene Benzene Xylene TPH-G 8020 826Q TBA DIPE ETBE TAME Oxygen DTW SPTFYff(TOC) Date (N9/L) (lig/L) (Ng/L) (ug/L) (Ng[-) (k�9/L) (NgIL) (Ng/L) (N9/L) (Ng/L) (Ng/L) (mg/L) (feet) (feet) <br /> MW-3 cont. <br /> 08/28/99 <0 3 <0 3 <0 3 <06 50 -- <5 <20 <5 <5 <5 09 795 000 -513 <br /> 11/24/99 <0 3 <0 3 <0 3 <0 6 95 896 <5 <20 <5 <5 <5 13 770 000 -488 <br /> r 02102/00 <0 3 <0 3 <0 3 <0 6 <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 /> 05/23101 <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 /> MW-4 <br /> 258 10/17/97 610 760 320 2,800 20,000 18,000 23,000 — — — -- -- 8 04 000 -546 <br /> 03/22/98 1 81 56 32 27 2,600 -- 26,000 ND ND ND ND 03 627 000 -369 <br /> 06115198 1 700 20 170 73 22,000 — 17,000 <5,000 <250 <250 <250 21 647 000 -389 <br /> 08/14/98-Well Abandoned <br /> MW-4R <br /> 04/10/02 330 31 120 480 3,700 4,200 5,_900 230,000 <500 <500 <500 61 1 672 000 — <br /> MW-5 <br /> 257 02/17/99 85 <1 30 110 890 49 82 <20 <5 <5 <5 07 579 000 -322 <br /> 05/21/99 242 086 141 172 220 188 <20 <5 <5 <5 09 700 000 443 <br /> 08/28/99 366 <0 3 321 348 296 — 64 <20 <5 <5 <5 08 670 000 41T <br /> 11/24199 214 129 142 149 257 259 281 <20 <5 <5 <5 1 1 750 000 -493 <br /> 02/02/00 296 <0 3 265 063 284 363 751 <20 <5 <5r<4 <br /> 1 1 650 000 -393 <br /> 05/16/00 <0 5 <0 5 099 <1 <100 — 160 <100 <4 <4 06 637 000 -380 <br /> 08/08/00 28 <0 5 44 22 <100 — 160 <120 <5 <5 04 735 000 -478 <br /> 11/15/00 29 <0 5 36 28 170 -- 59 <50 <2 <2 06 675 000 -418 <br /> 02/07/01 <0 5 <05 0 72* <1 5 <100 — 24 <50 <2 <2 07 1 660 000 -403 <br /> 7-11/20632 tbl As 3 of 4 05-31-02 <br /> k <br />