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1 <br /> S <br /> FUGRO WEST, INC. � <br /> 1050 Melody Fane Suite 160 <br /> Roseville California 95678 <br /> Tel (916)782 2110 <br /> February 27, 1995 FAX (916)786-7830 <br /> Mr Lynn Walker <br /> Shell Oil Company <br /> Post Office Box 4023 <br /> Concord, California 94524 <br /> Subject Fourth Quarter 1994 Groundwater Monitonng Report <br /> Former Shell Service Station (WIC No 204-7524-1509) <br /> 141 N EI Dorado, Stockton, California <br /> Dear Mr Walker <br /> Fugro West, Inc (Fugro), is pleased to provide Shell Oil Company the attached <br /> information documenting the results of quarterly groundwater monitoring, conducted on <br /> November 14, 1994 at the subject site by Blaine Tech Services, Inc , of San Jose, <br /> California <br /> Site remediation systems, consisting of groundwater recovery with discharge to sewer, <br /> groundwater oxygenation, and soil venting with granular activated carbon emissions <br /> control, are currently in operation <br /> Remediation system operation and monitoring will be continued per regulatory <br /> requirements Quarterly groundwater monitoring will be continued <br /> The groundwater sampling will include purging at least three well volumes of groundwater <br /> from each of the wells Groundwater temperature, conductivity, pH, and turbidity will be <br /> measured and/or observed for stability prior to sampling <br /> The interpretations and conclusions contained within the attachments represent our <br /> professional opinions These opinions are based on currently available information and <br /> were developed in accordance with currently accepted geologic, hydrogeologic, and <br /> engineering practices at this time and for this specific site Other than this, no warranty <br /> is implied or intended <br /> This report has been prepared solely for the use of Shell Oil Company Any reliance on <br /> this report by third parties shall be at such parties' sole risk This report was prepared <br /> under the review and supervision of the professional geologist, registered with the State <br /> of California, whose signature appears below <br /> 93011c onea <br /> A member of the Fugro group of companies with offices throughout the world <br />