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C t C C C t C C C f C C C E E C C C t <br /> i <br /> Table 1A <br /> Historical Groundwater Monitoring and Analytical Data <br /> Southland Store No.20304 <br /> 455 Grant Line Road,Tracy,California <br /> Well ID1 •Ethyl- MTBE, tssblved <br /> Elevatfon Date Benzene Toluene Benzene Xylene . 'TPH-G .T.PH-O Fecal TBA DIPS 78 1 1ME CUxygetlr bt 3p#' WTE <br /> .JTOC <br /> pg/L) 1L iL IL i<. . 1L; TL C.O:IifoIrtt R.. rL L m <: felt feet.. feet z <br /> cont. <br /> 08/26198 <br /> 4.65 0.00 20.78 <br /> 10115198: — -- - - - - _ — 4:46. <br /> GWE-2 <br /> 12118196: 15:.. 13 4 3. 7 1 120. a10:. <br /> 24.81 03/25/97 <0.3 <0.3 X0.3 <0.6< 50 _ -- X10 — — 2:90 0:00 21:91 <br /> 05/12/97 -= -- - -- - — 3,40 D.00 21':35;:; <br /> 08111197 — - -- - — - = -- -- - -- - 4.23 0:00 20.58 <br /> 11/11197 -- -- - -- 3:8:9 0:00 21;20 <br /> 4 <br /> W — <br /> 02/25/98 <br /> 05115198` <br /> 0826198 -- -- -- -- _ _ — _ _ _ _ _ _ -- 4.00 0.00 20.81 <br /> 1011:5198. .. ...: - — 3:81 <br /> GWE-3 <br /> 12118196 500': 91;; 120 >16Q 3;.200: -- "23 3?3 E#i00 <br /> 25.28 03/25/97 <0.3 <0.3` X0.3 <0.6 <50 = - X10 -- - - _ 3:43 6 00 21 85' <br /> 0511.'2197 _ <br /> 4:06 <br /> 08111197 -- - - - - - - - - 4:70 0:00 20.58 <br /> 11/11/97 405 0::03 2123< <br /> 02!25198 -- — -- _ _ - _ — -- 2:30 0:00 22:98 <br /> bestro ed Extractions Well 4198 <br /> EXPLANATION: <br /> TPH-G-Total petroleum hydrocarbons-as-gaso&WE =Water table elevation in feet above mean sea level <br /> TPH-D=Total petroleum hydrocarbons-as-diesel fuel NA -Not available <br /> pg/L=Micrograms per liter ' =Monitoring well MW-7 was abandoned March 1989 <br /> DTW -Depth to groundwater INF=Groundwater was collected from the influent port of the remediation system <br /> SPT =Separate-phase hydrocarbon thickness TBA=tert-butanol <br /> --=Not analyzed;not monitored DIPE=diisopropyl ether <br /> MTBE-Methyl-tert-butyl-ether ETRE=ethyi-teft-butyl ether <br /> ND=Not detected at or above method detection limits TAME=tert-amylmethyl ether <br /> Note:Data from November 1986 to September 1992 were taken from Quarterly Fluid-Level Monitoring and Groundwater Sampling Report, <br /> October 15,1992(Alton Geoscience) <br /> Page 18 of 18 <br /> FLUOR DANIEL GTI <br /> n <br /> 1 <br />