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<br /> Table 2
<br /> Historical Groundwater Monitoring Data
<br /> 7-Eleven Store No 20632
<br /> 4627 DaVinci Drive
<br /> Stockton, California
<br /> Well IDI Ethyl- MTBE PJiTBE Dissolved
<br /> y
<br /> Benzene X leve TPH-G 8020 8260 TBA DIPE ETBE TAME Oxygen DTW SPT WTE
<br /> Elevation Benzene Tolueneyg
<br /> (TOC) Date (Ng/L) (pg/L) (pg/L) (ug/L) (pg/L) (ps/L) (NgIL) (µ9IL) (wg/L) (lig/Ll (PgIL) (mgIL) (feet) (feet) (feet)
<br /> MW-2
<br /> < _ _ _ _ _
<br /> 2 82 10117/97 <0 5 <0 5 0 5 <0 5 440 1,800 2,300 $37 000 -555
<br /> 03/22/98 ND ND ND 078 ND - 2,000 ND ND ND ND 02 661 000 -379
<br /> 06115/98 <0 3 <0 3 <0 5 <0 6 1,300 -- 1,600 <2,000 <100 <100 <100 15 684 000 -402
<br /> 08/25/98 06 <0 3 <0 5 <0 6 1,550 - 1,610 <2,000 <200 <200 <200 - 770 000 -488
<br /> i2129/98 <0 3 <0 3 <03 <06 2,130 - 5,280 <800 <200 <200 <2,000 04 776 000 -494
<br /> 02/17/99 <0 5 <0 5 <0 5 <0 5 770 3,300 4,900 <1,000 <250 <250 <250 09 613 000 -331
<br /> 05/21/99 385 <1 5 <1 5 <3 1,180 -- 5,340 <400 <100 <100 <100 08 737 000 -455
<br /> 08/28/99 <0 3 <0 3 <0 3 <0 6 2,100 - 5,130 <800 <200 <200 <200 08 795 000 -513
<br /> 91/24/99 04 288 <0 3 177 3,490 5,830 7,450 <800 <200 <200 <200 18 785 000 -503
<br /> 02/02/00 <0 3 <0 3 <0 3 <0 6 2,010 4,000 407 2,090 <10 <10 <10 10 695 000 -413
<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 <0 5 <0 5 <0 5 <1 <100 -- 3,300 <2,500 <100 <100 <100 03 770 000 -488
<br /> 11/15/00 <50 <50 <50 <150 620 -- 3,000 <2,500 <100 <100 <100 06 7 10 000 -428
<br /> 02/07/01 <0 5 <0 5 06* <1 5 660 - 1,800 <1,200 <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 /> 08/21/01 1 11 069 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 <5 <5 <5 <5 2,630 -- 8,950 <20 <5 <5 9 10 532 000 -250
<br /> 04/10/02 <1 <1 <1 <i <100 2,200 1,900 <620 <62 <62 <62 10 730 000 -448
<br /> 07/10/02 <1 <1 <1 <1 <100 3,300 4,700 1,600 <50 <50 <50 12 765 000 -483
<br /> MW-3
<br /> 282 10/17/97 2 6 1 5 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 53 18 <1 - <10 <100 <5 <5 <5 10 672 000 -390
<br /> 08/25/98 06 <0 3 936 <0 6 <50 - <5 <50 <5 <5 <5 -- 756 000 -474
<br /> 12/29/98 <0 3 164 239 8 6 <50 - <5 <20 <5 <5 <5 04 765 000 -483
<br /> 02/17/99 <0 5 <0 5 27 <0 5 <50 <5 <5 <20 <5 <5 <5 07 604 000
<br /> 05/21/99 <03 108 341 105 750 -- <5 <20 <5 <5 <5 09 730 000
<br /> 7-11120632 tbl As 2 of 4 08-12-02
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