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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 lDl =-- _ - -_- - - Ethyl- - - - - -�- - -�=MTBE_= Dissolved - <br /> Elevation Date Benzene Toluene Benzene Xylene TPH-G <br /> JTPH-D 8020 82fi0 TBA DIPS ETBE TAME Oxygen DTW SPT WTIE <br /> (TOC)--_ -- -(pg/L)- -(pgt _ (ug/L) _ (Ngl�)_ (Ng��)- (N9l�) _(p9«_}_ (1!gl�)_ �t!gll.)� _(Ng1L} �(mglL}_ (feet)^ (feet) feet) <br /> Groundwater Grab Samples _ _ _ - _ - _- _ - I-_ <br /> ���_ <br /> T GP3- - 02/20/97 2 1 <0 5 <0 5 0 55 _ 930_ _-- 1,70_0 -- - -- -- - -- -- __ _. <br /> GP4 02/20/97 9,100 33,000 3,900 24,000 _150,000 -- 100,000 84,000 -- -- -- -- -- -- - <br /> GP7 02/20/97 <0 5 <05 <0 5 <0 5 _x_50 _ _ <5 - <br /> ftloristoring Well Samples <br /> MW-1 <br /> 734 12/19/97 1,200 1,100 580 1,500 15,000 -- 9,900 14,000 <4,000 <1,000 1<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 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br /> MW-1A d 08 <br /> Well destroye /14/98 and replaced by MW-5A on 08/25/98 - - - o _ _ - - - - ___ _- <br /> 726 12/19/97 41 88 56 270 2,600 - 280 350 <100 <25 <25 <25 01 1888 000 -1162 <br /> I 03/22/98 15 6 1 13 6 5 560 - - 360 <500 <251 <25 <25 02 1423 000 -697 <br /> 06/15/98 85 89 0 84 63 <100 _ _ 31 <100 <51 <5 <5 18 1437 000 726 <br /> 08/25/98 - - - - - -- <br /> ;� Well destroyed 08/14/98 and replaced by MW-513 on 08/25/98 - <br /> IJMW-2 <br /> 864 12/19/97 <0 5 <0 5 <0 5 <05 290 <50 <5 <5 <20 <5 <5 <5 01 1989 000 -1125 <br /> 103/22/98 ND 16 068 27 ND -- - <10 <100 <5 <5 <5 02 1525 000 -661 <br /> 06/15/98 <0 3 <0 3 <0 5� <06 <100 - - <10 <100 <5, <5 <5 21 1548 000 -684 <br /> 08/25/98 0 363 1 11 2 54 1 129 170 <5 <50 <5' <5 <5 -- 1607 000 -743 <br /> 12/29/98 <0 3 <0 3 <0 3 <06 <50 - -- <5 <20 , <5 <5 <5 07 1670 000 -806 <br /> !02117/99 <0 5 <0 5'1 <0 5 <0 5 <50I <5 <5 <201 <5 <5 <5 1 2 1584 000 -743 <br /> 05/21/99 073 065 <0 3 115 <501 - -- <5 <201 <5 <5 <51 08 15761 000 -712 <br /> 08/28/99 <0 3 <0 3 <0 3 <06 78 -- <5 <5 <20 ! <5 <5 <5 09 17301 000 -866 <br /> 11/24/99 <0 3 <0 3' 0 8 076 <50 <5 <5 <20 <5 <51 <5 2 681 17 25' 0001 -8 61 <br /> �02102100 <0 31 <0 3� 1 56 215 1561 --i <5 <5 <20' <5 <51 <51 1 31 16801 0 OD -8 16 <br /> 17334TI32 WK4 Page 1 of 3 <br />