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Table 2 <br /> Historical Groundwater Monitoring and Analytical Data <br /> 7 Eleven Store#17334 <br /> 4501 North Pershing Avenue <br /> Stockton CA <br /> I <br /> Well IDI Ethyl- MtBE I Dissolved <br /> Elevation Date Benzene Toluene Benzene Xylene TPHg TPHd 8020 MtBE TBA DIPE EtBE TAME Notes Oxygen DTWH. Tt) <br /> jEj <br /> TGC (µg(L} {11g,L} Will-) 11ig2} W11L) (lig L) (trglL) WgIL} (NgIL) (VgIL) (Pgn-) (NgIL) (mg/L) (rest} <br /> Groundwater Grab Samples <br /> GP3 02/20/97 21 <0 5 <0 5 055 930 - 1,700 - - - - - - - - <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 <0 5 <0 5 <0 5 <50 <5 - -- - - - - <br /> SB-1@50' 04/03/02 28 180 100 650 7,100 - 67 <50 <20 <20 <20 -- -- - - <br /> Monitoring 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 <1,000 <1,000 02 1893 000 -11 59 <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 -709 <br /> 08/25/98 - - - - -- - -- <br /> d 08/14/98 and re laced by MW-5A on 08/25/98 <br /> MW-IA <br /> 7 26 12/19/97 41 88 56 270 2,600 280 350 <100 <25 <25 <25 01 1888 000 -1162 <br /> 03/22198 15 61 13 65 560 360 <500 <25 <25 <25 02 1423 000 -697 <br /> 06/15/98 85 89 084 63 <100 31 <100 <5 <5 <5 1 8 1437 000 -711 <br /> 08/25/98 1 - - - - - - -- - <br /> d 08/14/98 and replaced by MW-513 on 08/25/98 <br /> I 17-Erevenl7 11 Stores1173347ables117334 03,40 AsKstoncal Water Page 1 of 6 <br />