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� � � � �. � � � r r r■�I � � rr I■■r �I � y■�I <br /> fable 2 <br /> Historical Groundwater Monitoring Data <br /> 7-Eleven Store#20632 <br /> 4627 DaVfnci Drive <br /> Stockton California <br /> Well IDI Ethyl- MTBE 7xygen <br /> solved <br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G - 8020 B260 TBA DIPE ETRE TAME DTW SPT WTE <br /> (TOC) I (pglL) (II (pg1L) (pglL) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (pg1L) (pglt} mg1I (feet) (feet) (feet) <br /> Groundwater Grab Samples- <br /> 6P-1 02/21/97 390 700 370 2,100 16,000 16,000 -- -- -- - -- -- -- <br /> GP-5 02121/97 140 Ti-- 39 310 2,800 1,800 -- -- -- -- -- " <br /> G_P4 02/21/97 34 6 5 26 110 440 5_B -- -- - -- - -- <br /> G_P_-8 0.2121!97 Z-0-50 <02121/97 <-0-66 <0 50 <0 50 0 94 830 1,600 870 <br /> 0 <br /> GP-9 -- -- -- -- -- -- -- <br /> <0 50 -50 <_ 1 1 <50 5 0 "" -' -- "" -- -- -- -- -- <br /> --- - - --- --- - - <br /> GP-10 02121/97 <0 50 <0 50- <�50 <0 50 <50 <5 0 -- -- -- -- -- -- -- -- - <br /> Monitoring Well Samples - <br /> MW-1 1 <br /> 173 10/17/97 65 <05 <05 13 51 16 13 -- -- -- -- - 713 000 -540 <br /> 03/22/98 ND ND ND 078 ND 47 ND ND ND ND 041 535 000 -362 <br /> 06/15/98 <03 <0 3 <0 5 <0 6 <100 <10 <100 <5 <5 <5 18 555 000 -382 <br /> .- <br /> 08/25/98 <03 <03 <0 5 <0 6 <50 <5 <50 <5 <5 <5 -- 629 000 -456 <br /> 12129!98 <0 3 <03 <0 3 <0 6 <50 -- <5 <20 <5 <5 <5 04 660 000 487 <br /> 102/17/99 <0 5 <0 5 <0 5 <05 <50 52 86 <2 <5 <5 <5 05 49 000 -3 17 <br /> 06 c50 -_ <5 <br /> 05/21199 <0 3 <0 3 <0 3 < <20 i <5 <5 <5 11 10 605 000 -432 <br /> � E <br /> 08/28/99 <03 <0 3 <0 3 I <0 6 <50 581 554 <20 <5 <5 <5 11� 09 680 000 -5 07 <br /> 11/24/89 i 091 378 241 588 259 <5 <5 <20 <5 <5 <5 11 10 660 000 -487 <br /> 102/02/00 <0 3 <0 3 <03 <0 6 <50 <5 21 1 <20 <5 <5 <5 i1 1 0 549 000 -376 <br /> MW-2 __ __ _. it _. 5 <br /> 2 82 10/77/97 < <0 5 - <0 5 <0 5 <0 5 440 1,800 2,300 837 000 55 <br /> 0312219$ I ND ND ND 1 078 ND -- 1 2,000 ND ND ND ND 02 661 000 -379 I <br /> 06/15/98 <03 <03 <05 1 <06 11,300 - 1,600 <2 000 1 <100 <100 <100 ` 15 684 E 000 1 -402 <br /> 1j l 08125!98 11 0 6 <0 3 <0 5 <0 6 1 1,550 - 1,610 <2,000 I <200 <200 <200 , 77 000 1 -4 88 <br /> !; <br /> 112/29198 ' <0 3 <03 <03 <06 2,130 ' - 5,280 <800 <200 <200 4,000 0 4 7 76 0 00 { -4 94 <br /> 102/17/99 <0 5 <05 <0 5 I <0 5 1770 3,300 4,900 <1,000 <250 i <250 I <250 09 613 000 1 -331 <br /> 05121!99 385 <1 5 <1 5 <3 11,180 -- 5,340 i <400 <100 i <100 <100 08 i 7 37 000 1455 1 <br /> 08/28/99 <0 3 <0 3 <0 3 <0 6 2,100 -- 5,130 <800 400 <200 ` <200 0 8 7 95 0 00 -513 ' <br /> 11/24/99 D4 288 <0 3 E 1 77 3,490 5,830 7,450 <800 <200 <200 <200 18 785 ' 000 -503 , <br /> 102102100 <0 3 1 <03 1 <0 3 <0 6 2,010 4,000 407 2,090 <10 <10 <10 1 0 6 95 0 00 4 13 <br /> 20632T81 WK4 Page 1 of 2 IT CORPORATION <br />