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K7 • <br /> eig6ETTLER - RYANINC. <br /> September 29, 1995 <br /> Brett Hunter <br /> Chevron USA Products Company <br /> P O Box 5004 <br /> San Ramon, CA 94583 <br /> Re: Chevron Service Station#9-6171 <br /> 6633 Pacific Avenue <br /> Stockton, CA <br /> Job #5121.80 <br /> Dear Mr Hunter <br /> This report documents the quarterly groundwater sampling event performed by Gettler-Ryan, Inc (G-R). <br /> On August 20, 1995, field personnel were on-site to gauge and sample six wells (MW-2 through MW-7) Chevron <br /> Service Station #9-6171 located at 6633 Pacific Avenue, in Stockton, California <br /> Static groundwater levels were measured on August 20, 1995 All wells were checked for the presence <br /> of separate-phase hydrocarbons Separate-phase hydrocarbons were not present in any of the site wells Static water <br /> level data and groundwater elevations are presented in Table 1. A potentiometrrc map is included as Figure 1 <br /> Groundwater samples were collected from the monitoring wells as specified by G-R Standard Operating <br /> Procedure-Quarterly Groundwater Sampling(attached) The field data sheets for this event are also attached. The <br /> samples were analyzed by Sequoia Analytical Analytic results are presented in Tables 1, 2 and 3. The chain of <br /> custody document and laboratory analytic reports are enclosed G-R is not responsible for laboratory omissions or <br /> errors <br /> Thank you for allowing Gettler-Ryan to provide environmental services to Chevron Please call if you have <br /> any questions or comments regarding this report <br /> Since 1 <br /> �gy to `S,��pIED <br /> Env Protect Map9gerN C yj <br /> Stephen J. Carter <br /> Senior Geologist, R G 5577 No.5577 <br /> AML/SJC/dlh <br /> 5121 QML 9 OF CALI�C�P� <br /> Figure 1 Potentiometnc Map <br /> Table 1 Water Level Data and Groundwater Analytic Results <br /> Table 2 Analytic Results - Volatile Organic Compounds <br /> Table 3 Analytic Results -Bacteriological Elements <br /> Attachments Standard Operating Procedure <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytic Reports <br /> 6747 Sierra Court , Suite J Dublin , California 94568 ( 510 ) 551 -7555 <br />