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,II <br /> u <br /> t <br /> Summary of Reports <br /> Guild Wineries and Distilleries <br /> One Winemasters' Way <br /> Lod:, California <br /> (Continued) <br /> Title <br /> Dat Actjyi1,iPs DescribPidSummaa of R silts § <br /> Vapor Extraction System February 2, 1987 —VES installed 3 <br /> Report —VES operated successfully <br /> —3 1/2 hour pilot test —VES effective in removing gasoline E <br /> Soil—Gas Vapor May 1, 1987 --VES operated for <br /> Extraction System, ` <br /> —Estimated 230 lbs of petroleum hydro— <br /> Thirty—Day Operation {I approximately 30 days carbons removed <br /> Report (456 hours) <br /> —VES exhaust monitored —Effective radius of influence of VES s <br /> daily >20 ft <br /> Letter Report., <br /> Ground October 26, 1987 --September 1987 Ground Water Monitoring Results —Septen;ber results: benzene not <br /> Water Sampling Round detected in weI.ls, highest TPHn <br /> T—i <br /> F <br /> —Summary of results to date shows de— <br /> crease in BTX constituent concen— <br /> trations over time <br /> —Ground water elevation,data indican— <br /> gradient is south—southwest <br /> Letter Report: December 23, 1987 10 months of VES <br /> Remediation. Status —Hydrocarbon steady state extraction <br /> operation rate dropped to approximately 0.003 <br /> pounds/hour, low extraction rates <br /> predict low residual volatile hydro- <br /> carbon levels in soil, matrix y <br /> I � <br />