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TABLE 2 <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton,California <br /> Well IDI Ethyl- MTBE Dissolved T� <br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G TPH-D 8020 TBA DIPE ETRE TAME Oxygen DTW SPT WTE <br /> (per) _(PglL)_ (p9/L) {P LL (pglL)_ (pg/L)- _(pg1L)_[—i-26V' <br /> -((p9/L1 (pg/L) (N�r�)--(pgL)-_(pg1L) _(mg1L) _(fest} _{feet) [feet) <br /> MW-1 — - - ------- -� <br /> 7 34 12119/97 1,200 1,100 580 1,500 15,000 -- 9,900 14,000 <4,000 <1,000 <1,000 <1,000 02 1893 000 -1159 <br /> 03/22/98 2,200 3,400 880 3,200 23,000 -- -- 11,000 <10,000 <500 <500 <500 02 1430 000 -696 <br /> 06/15/98 5,000 7,200 1,700 8,800 52,000 - -- 21,000 <10,000 <500 <500 <500 1 5 1443 000 734 <br /> 08/25/98 -- --I --I --I -- -- -- -- -- <br /> Well destroyed 08/14/98 and replaced b f MW-5A on 08/25/98 - - <br /> MW-1A <br /> 726 12/19/97 41 88 56 270 2,600 280 350 <100 <25 <25 <25 01 1888 000 -1162 <br /> 03/22/98 15 61 13 65 560 - 360 <500 <25 <25 <25 02 1423 000 -697 <br /> 06/15/98 8.5 89 0 84 6.3 <100 - 31 <100 <5 <5 <5 18 1437 000 726 <br /> 08125/98 -- -- -- -- -- -- -- -- <br /> _ Weil destroyed 08/14/98 and replaced b r MW-5b on 08/25/98 <br /> MW-2 <br /> 8 64 12/19/97 <0 5 <0 5 <0 5 <0 5 290 <50 <5 <5 <20 <5 <5 <5 01 1989 000 -1125 <br /> 03/22/98 ND 16 068 27 ND - <10 <100 <5 <5 <5 02 1525 000 -661 <br /> 06/15/98 <0 3 <0 3 <0 5 <0 6 <100 <10 <100 <5 <5 <5 21 1548 000 -684 <br /> 08/25/98 0 363 1 11 254 129 170 <5 <50 <5 <5 <5 - 1607 000 -743 <br /> 12/29/98 <0 3 <0 3 <0 3 <0 6 <50 - -- <5 <20 <5 <5 <5 07 1670 000 -806 <br /> 02/17/99 <0 5 <0 5 <0 5 <0 5 <50 <5 <5 <20 <5 <5 <5 1 2 1584 000 -743 <br /> 05/21199 073 065 <0 3 115 <50 - -- <5 <20 <5 <5 <5 08 1576 000 -712 <br /> 08/28/99 <03 <0 3 <0 3 <0 6 78 - <5 <5 <20 <5 <5 <5 09 1730 000 -866 <br /> 11/24/99 <0 3 <03 - 08 076 <50 <5 <5 <20 <5 <5 <5 2 6B 1725 000 -861 <br /> 7 44 12/19/97 Is 19 19 099 640 - 66 10 <20 <5 <5 <5 03 1915 000 -1171 <br /> 03/22/98 ND 13 42 32 260 - <10 <100 <5 <5 <5 04 1457 000 -713 <br /> 06/15/98 <3 74 43 94 2,400 25 <100 <5 <5 <5 12 1467 000 -723 <br /> 08/25/98 <0 3 <0 3 <05 <0 6 <50 - - <5 <50 <5 <5 <5 -- 1685 000 -941 <br /> 12/29/98 <0 3 <0 3 <03 <0 6 123 - <5 <20 <5 <5 <5 09 1588 000 -844 <br /> 02/17/99 <0 5 12 14 10 370 <5 <5 <20 <5 <5 <5 03 1505 000 -761 <br /> 05/21/99 091 162 529 3.64 217 - - 14 <20 <5 <5 <5 05 1493 000 -749 <br /> 08128/99 <0 3 <0 3 064 411 210 -- <5 773 <20 <5 <5 <5 08 1653 000 -909 <br /> 11/24/99 ___066L 0 81 ---9--96 1391 1631 <5 5 47 <20 <5 <5 <5 144 1645 000 -9 01 <br /> 17334782 WK4 Page 1 of 2 <br />