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CONESTOGA-ROVERS .. <br /> &ASSOCIATES <br /> Figure 1. Vicinity Map <br /> Figure 2. Historical Excavation.Soil Sampling Location Map r <br /> Figure 3. Site Map <br /> Figure 4.4. -` Geologic Cross�Section A-A.' <br /> Figure 5. TPHd and MTBE Isoconcentration Contours in Soil <br /> Figure b. TPHg and TBA Isoconcentration Contours in Soil i <br /> Figure 7. MTBE IsoconcentratiodContour in Groundwater <br /> Table 1. Well/Boring Data <br /> Table 2. Soil Analytical Data .- y <br /> Table I Grab Groundwater Analytical Data � <br /> Table 4.. Mass Removal Data <br /> Attachment A. Historical Groundwater Monitoring Data <br /> Attachment B: Boring Logs <br /> Attachment C. Known Environmental Documents List <br /> Attachment D. Mass Balance Calculations <br /> Attachment E Vapor Intrusion Analysis <br /> cc: Mr:Denis Bro", Shell <br /> Mr.James Barton,Central Valley Regional,Water Quality Control Board <br /> Mr,Darin Rouse,Chevron Texaco Environmental Management Company <br /> I:1Sonoma.She111Tracy.3725 Tracy BIvd1REP0RTSICIosure 2007/0813 Closure.doe <br /> t - <br /> 0813 12 <br /> JWorldwide Engineering, Environmental,Construction,and IT Services <br />