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. 2 <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store No 20632 <br /> 4627 DaVfnci Drive <br /> Stockton,California <br /> Well ID! Ethyl- MTBE MTBE Dissolved <br /> Elevation Benzene Toluene Benzene Xylene TPH-G 8020 8260 TBA DIPE ETBE TAME Oxygen DTW SPT WTE <br /> (TOC) Date (NgIL) (NgIL) (pgIL) (pgIL) (NgIL) (NgIL) (NgIL) (VgIL) (NgIL) (NgIL) (PgIL) (mglL) (feet) (feet} (feet) <br /> MW-2 cont < <200 <200 <200 18 7 85 000 -503 <br /> 11/24/99 04 288 <0 3 177 3,490 5,830 7,450 800 <10 10 1 0 6 95 0 00 -4 13 <br /> 02/02/00 <0 3 <0 3 70 3 <0 6 2,010 4,000 407 2,090 <10 < <br /> 05/16/00 <5 <5 <5 <10 1,200 - 4,500 <5,000 <200 <200 <200 07 679 000 -397 <br /> 08/08/00 <p 5 <p 5 <0 5 <1 <100 -- 3,300 <2,540 <100 <100 <100 0 3 7 70 0 00 -4 8$ <br /> 11/15/00 <50 <50 <50 <150 620 -- 3,000 <2 500 <100 <100 <100 06 7 10 000 -428 <br /> 02107101 <0 5:: <0 5 0 6* <1 5 660 - 1,800 <1,200 <50 <50 <50 0 9 6 99 0 00 -4 17 <br /> <0 5 <1 640 -- 2,100 <2,500 <100 <100 <100 10 730 000 4 48 <br /> 05/23101 <0 5 <0 5 <br /> 08/21/01 1 1 1 059 1 940 - 2,800 <2,500 <100 <100 <100 04 785 000 -503 <br /> 11/05/01 21 74 34 13 680 -- 6,600 <2,000 <500 <500 <500 1 1 780 000 -498 <br /> 01/09/02 <br /> <5 <5 <5 <5 2,630 -- 8,950 <20 <5 <5 9 10 532 000 -250 <br /> MW-3 <br /> 282 10/17/97 26 16 38 110 620 <5 0 -- - -- - - -- 829 000 -547 <br /> 03/22/98 ND 4 15 31 120 -- ND ND ND ND ND 02 655 000 -373 <br /> 06/15/98 <0 3 11 63 18 <1 - <10 <100 <5 <5 <5 1 0 672 000 -390 <br /> 08/25/98 0 6 <0 3 936 <0 6 <50 _ <5 <50 <5 <5 <5 -- 756 . 0 00 -474 <br /> <0 3 154 239 86 <50 -- <5 <20 <5 <5 <5 04 765 000 -483 <br /> 9 2129198 <br /> 02117199 <0 5 <0 5 27 <0 5 <50 <5 <5 <20 <5 <5 <5 07 604 000 -322 <br /> 05/21/99 <0 3 108 341 105 <50 -- <5 <20 <5 <5 <5 09 730 000 -448 <br /> 08/28/99 <0 3 <0 3 <0 3 <0 6 50 -- <5 <20 <5 <5 <5 09 795 000 -5 13 <br /> 11/24/99 <0 3 <0 3 <0 3 <0 6 95 ass <5 <20 <5 <5 <5 13 770 000 -488 <br /> 02/02/00 <0 3 <0 3 <0 3 <0 6 <50 <5 649 <20 <5 <5 <5 12 656 000 -374 <br /> 05/16100 <5 49 640 2,000 9,500 -- <1 <50 <2 <2 <2 06 660 000 1 -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 1 <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 /> 11/05/09 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 -2 56'- <br /> MW-4 <br /> 258 10/17/97 610 760 320 2,800 20,000 18,000 23,000 -- -- -- - -- 804 000 -546 <br /> 03/22/98 81 66 32 27 2,600 -- 26,000 ND ND ND ND 03 627 000 -369 <br /> 06/15/98 700 20 170 73 22,000 17,000 <5,000 <250 <250 <250 21 647 000 -389 <br /> 08114!98-Well Abandoned <br /> 7-11120632 tbl As 2 of 3 03-06-02 <br />