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1■■■r r■■r am 40M r.r Ir am rr r0 <br /> Tab <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store No 20632 <br /> 4627 DaVmci Drive <br /> Stockton,California <br /> WelllDf Ethyl- MTBE MTBE Dissolved <br /> Elevation Benzene Toluene Benzene Xylene TP <br /> H-G 8020 8260 TBA DIPEETBE TAME Oxygen DTW SPT WTE <br /> TOC)= Date_ (Pg/L) _(ting►L) (Pg1L) (Ng1L) (pg/L) (NJ1L) (Ng1�) (N91L) (NglL) (Ng1L) (N51L) (mglL) (feet) (feet) (feet) <br /> MW-2 cont <10 <10 <10 1 0 6 95 0 00 -4 13 <br /> _ 02/02/00 <0 3 <0 3 <0 3 <0 6 2,010 4,000 407 2,090 <br /> 05116100 <5_- <5 - --<5 <10 1,200 -- 4,500 <5,000 <200 <200_ <200 07 679 0 00 -397 <br /> 08/08/00 <0 5 <0 5 <0 5 <1 <100 -- 3,300 <2,500 <100 <100 <100 03 770 0 00 -488 <br /> 11/15/00 <50 <50 <50 <150 620 — 3,000 <2,500 <100 <100 <100 06 710 000 -428 <br /> 02!07101 <0 5 -<0 5 0 6* <1 5 660 -- 1,800 0,200 <50 <50 <50 09 699 000 -417 <br /> 05/23/01 <0 5 <0 5 <0 5 <1 640 -- 2,100 <2,500 <100 <100 <100 10 730 000 -448 <br /> MW-3_ _ <br /> 2 82 10!17197 26 is 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!15198 <0 3 11 63 18 <1 — <10 <100 <5 <5 <5 10 672 000 -390 <br /> 08/25/98 06 <0 3 936 <06 <50 -- <5 <50 <5 <5 <5 -- 756 000 74 <br /> 12/29198 '<0 3 154 239 go <50 -- <5 <20 <5 <5 <5 04 765 000 -483 <br /> 02117!99 <0 5 <0 5 27 <0 5 <50 <5 <5 <20 <5 <5 <5 07 604 000 -322 <br /> 05121/99 <0 3 108 341 105 <50 -- <5 <20 <5 <5 <5 09 1 730 000 -448 <br /> 0 3 0 3 <br /> 08/28/99 < < <03 <0 6 50 -- <5 <20 <5 <5 <5 09 795 000 -513 <br /> 11/24/99 <0 3 <0 3 <0 3 <br /> <0 6 96 89.6 <5 <20 <5 <5 <5 13 770 000 -488 <br /> 02102!00 <0 3 <0 3 <0 3 <0 6 <50 <5 649 <20 <5 <5 <5 12 656 000 -374 <br /> 05116100 1 <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 0 00 478 <br /> 11/15100 66 ` -45 500 270 3,300 — <10 <500 <20 <20 <20 04 700 000 -418 <br /> 02/07/01 98 <2 5 160* 76 1,700 — <1 0 <50 <2 <2 <2 07 687 000 -405 <br /> 05123101 <1 17 140E 120 -- <br /> <1 <25 <2 <2 <2 07 719 000 -437 <br /> MW-4 <br /> 258 10117!97 610 760 320 2,800 20,000 18,000 23,000 -- — -- - 1 — 804 000 -546 <br /> 03/22/98 81 66 32 27 2,600 — 26,000ND ND ND ND 0 3 627 000 -369 <br /> 06!15198 700 20 170 73 22,O00 — 17,000 <5,000 <250 <250 <250 21 647 000 -389 <br /> 08114198-Well Abandoned <br /> 7-11/20632_tbl As <br /> 2 of 3 6-13-01 <br />