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Ch <br /> evron <br /> r <br /> i/f r"x ' Wo <br /> Chevron USA Products Comprty <br /> 6001 Bollinger Canyon Rd.,-Bldg.-L <br /> P.0. Box 5004 <br /> San Ramon,CA 94583-0804 <br /> Site Assessment&Remediation Group <br /> Phone(510)842-9500 <br /> September 6, 1995 <br /> Ms.Mary Meays <br /> San Joaquin County Environmental Health. <br /> P.O.Box 2009 . - <br /> Stockton,CA 95201 <br /> Re: Former Chevron Station#9-1918 45East Hardine Way, Stockton, CA M <br /> Attached Corrective Action Plan(Pacific;8/28/95) _ff <br /> I <br /> Dear Ms.Meays: <br /> The attached Corrective Action Plan(CAP)dated August 28, 1995,was prepared by Chevron's <br /> consultant,Pacific Envirorunental Group ,Inc. (Pacific),and was submitted to your agency by Pacific <br /> underseparate cover on August 31,1995. <br /> Prior to determining their proposed corrective action,Pacific performed acomprehensive review of all <br /> previous environmental activity at thesubject site.From this information pacific was able to calculate <br /> estimates of the original hydrocarbon mass released beneath the site,the mass of hydrocarbons remediated <br /> during the operation of the former soil vapor extraction.system,and the extent and mass of hydrocarbons i <br /> remaining beneath the site currently.After considering these site specific data and their feasibility study of <br /> all applicable technologies,Pacific has recommended achieving specific.cleanup goals through•a - <br /> combination of soil vapor extraction and natural attenuation mechanisms.Until the,specific cleanup goals <br /> are attained,Pacific has also recommended the establishment of a water qualitylimited zone which will be. <br /> used to manage and contain groundwater until background contaminant levels within are met. <br /> Once approval of this CAP is received from your agency,Chevron will,submit.a workplan which will <br /> describe the formal design,installation; and operation of the recommended system.If you have any <br /> questions or comments,please call me at(5 10) 842-8695. <br /> Sincerely, <br /> Brett L.Hunter <br /> Environmental Engineer - - - <br /> 'F Site Assessment and Remediation <br /> Z - <br />