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WW <br /> Table 2 <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store No 20632 <br /> 4627 DaVinci Drive <br /> Stockton, California <br /> I <br /> Well ID! Ethyl- MTBE MTBE Dissolved <br /> Elevabon Benzene Toluene Benzene Xylene TPH-G 8020 8260 TBA DIPE ETBE TAME Oxygen DTW SPT WTE <br /> (TOC) Date (pglL) (pglL) OWL) (pglL) (pg1L) (pglL) (p91L) (pglL) (pglL) fps/L) (pglt.) (mg1L} (feet) (feet} (feet) <br /> Groundwater Grab Samples <br /> GP-1 02/21/97 390 700 370 2,100 16,000 16,000 <br /> GP-5 02/21/97 110 12 1 39 310 2,800 1,800 <br /> GP-7 02!21197 34 65 26 110 440 58 - <br /> GP-8 02/21/97 <0 50 <0 50 <0 50 094- 830 1,600 870 - <br /> GP-9 02/21/97 <0 50 <0 50 <0 50 1 1 <50 <5 0 <br /> GP-10 02/21197 <0 50 <0 50 <0 50 <0 50 1 <50 <50 _ _ <br /> Monitoring 1Nell Samples - - -_ - <br /> MW-1 <br /> 1 73 10/17/97 65 <0 5 <05 13 51 16 13 -- - -- 7 13 0 00 -540 <br /> 03/22/98 ND ND ND 078 ND 47 ND ND ND ND 0 4 535 000 -362 <br /> 06/15/98 <0 3 <0 3 <0 5 <0 6 <100 - <i D <100 <5 <5 <5 18 555 000 -382 <br /> 08/25/98 <0 3 <03 <0 5 <0 6 <50 -- <5 <50 <5 <5 <5 629 000 -456 <br /> 12!29198 <0 3 <0 3 <0 3 <0 6 <50 _ <5 <20 <5 <5 <5 04 660 000 -487 <br /> 02/17/99 <05 <0 5 <0 5 <0 5 <50 5.2 8 6 <2 <5 <5 <5 05 490 000 -317 <br /> 05/21199 <0 3 <0 3 70 3 <0 6 <50 -- <5 <20 <5 <5 <5 1 0 6 05 0 00 -432 <br /> 08/28/99 <0 3 <03 <0 3 <0 6 <50 681 554 <20 <5 <5 <5 0 9 6 80 0 00 -5 07 <br /> 11/24/99 0 91 3 T8 2 41 5 88 259 <5 <5 <20 <5 �<2 <br /> <5 10 6 60 0 00 -487 <br /> 02102!00 <0 3 <0 3 <0'T- <0 6 <50 <5 21 1 <20 <5 <5 1 0 5 49 0 00 -3 76 <br /> 05/16/00 <0 5 <0 5 <0 5 <1 <100 -- 16 <50 <2 <2 07 549 000 -376 <br /> 08/08/00 06 <0 5 <05 <1 <100 - 12 <50 <2 <2 <2 04 647 000 -474 <br /> 11115/00 -T-81— 70 5 70 5 <1 5 <100 - -76— <50 <2 <2 <2 0 5 585 000 -412 <br /> 02/07/01 <05 5 9 0 79" 16 <100 - 29 <50 <2 <2 <2 0 4 573 000 -4 00 <br /> 05123/01 14 066 <05 <1 <100 2 5 <50 <2 <2 <2 0 7 5$2 0 00 -409 <br /> 08121101 <0 5 <0 5 1 15 <100 - 21 <50 <2 <2 <2 09 671 000 -498 <br /> 11/05/01 <0 5 <0 Ei 095 —1-5 120 -- <5 <20 <5 <5 <5 09 6 52 To 0 4 79 <br /> 01/09102 <5 <5 <5 <5 750 -- 180 77 <5 <5 <5 08 413 000 -240 <br /> 04110/02 <0 5 073 <0 5 <0 5 <50 <5 19 <5 <0 5 <05 <0 5 08 602 000 -429 <br /> 07/10/02 <0 5 0 7 <0 5 <0 5 <50 <5 3 9 <5 <65 <0 5 <0 5 10 650 000 -477 <br /> 10/16/02 <0 5 1 <0 5 F-70-5— <05 <50 _75— 91 <5 <0 5 <0 5 <0 5 1 0 fi 73 0 00 <br /> 7-11120632 tbl As <br /> -- 1 of 4 11-04-02 <br />