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1;4 Av k <br /> 1050 Melody Lane, Suite 160, Roseville, California 95678 <br /> E01 or <br /> (916)7a22110Fox(9,6)7867a30 <br /> ENVIRONMENTAL, INC. <br /> November 8, 1993 <br /> Mr Dan Kirk <br /> Shell Oil Company <br /> Post Office Box 5278 <br /> Concord, California 94520 <br /> Subject Quarterly Groundwater Mondonng Report <br /> Shell Service Station (WIC No 204-7524-2408) <br /> 4445 Pershing Avenue, Stockton, California <br /> Dear Mr Kirk <br /> Aegis Environmental, Inc (Aegis), is pleased to provide Shell Oil Company (Shell) the <br /> attached information documenting the results of quarterly groundwater monitoring <br /> conducted on August 26, and October 1 , 1993, at the subject site by Blaine Tech <br /> Services, Inc , of San Jose, California <br /> The site was resampled in October due to apparently anomalous data collected in <br /> August Fourth quarter monitoring and sampling is scheduled for the site in <br /> November 1993 The sampling will include purging of at least three well volumes of <br /> groundwater from each of the wells Temperature, conductivity, pH, and turbidity will be <br /> measured and/or observed for groundwater stability parameters prior to sampling <br /> The interpretations and/or conclusions that may be contained within the attachments <br /> represent our professional opinions These opinions are based on currently available <br /> information and were developed in accordance with currently accepted geologic, <br /> hydrogeologic, and engineering practices at this time and for this specific site Other than <br /> this, no warranty is implied or intended <br /> 89 016c onnR <br />