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INC. <br /> ETTLER - RYAN <br /> March 31, 1997 Job #5121 80 <br /> Mr Brett Hunter <br /> Chevron Products Company <br /> P O Box 5004 <br /> San Ramon, CA 94583 <br /> Re First Quarter Groundwater Monitoring&-Sampling Report <br /> Chevron Service Station #9-6171 <br /> 6633 Pacific Avenue <br /> Stockton, California <br /> Dear Mr Hunter <br /> This report documents the quarterly groundwater sampling event performed by Gettler-Ryan Inc (G-R) On <br /> February 24, 1997, field personnel were on-site to monitor and sample six wells (MW-2 through MW-7) at <br /> Chevron Service Station #9-6171 located at 6633 Pacific Avenue in Stockton, California <br /> Static groundwater levels were measured on February 24, 1997 All wells were checked for the presence of <br /> separate-phase hydrocarbons Separate-phase hydrocarbons were not present in any of the wells Static water <br /> . level data and groundwater elevations are presented in Table 1 A potentiometric map is included as Figure I <br /> Groundwater samples were collected from the monitoring wells as specified by G-R Standard Operating <br /> Procedure - Groundwater Sampling (attached) The field data sheets for this event are also attached The <br /> samples were analyzed by Sequoia Analytical Analytical results are presented in Tables 1, 2, 3, and 4 The <br /> chain of custody document and laboratory analytical reports are enclosed <br /> Thank you for allowing Gettler-Ryan Inc. to provide environmental services to Chevron PIease call if you have <br /> any questions or comments regarding this report <br /> S erely, <br /> D <br /> De a Wrg <br /> J.C Vy <br /> Projeo Coordinator <br /> StephenA�Cter <br /> No.5577 <br /> Senior Geologist, RG No 5577 <br /> DLH/FWd1h 9 of CAL�FO�� <br /> 5121 QML <br /> Figure I Potentiometric Map <br /> Table 1 Water Level Data and Groundwater Analytical Results <br /> Table 2 Field Measurements &-Analytical Results <br /> Table 3 Analytical Results -Volatile Organic Compounds <br /> Table 4 Analytical Results - Bacteriological Elements <br /> Attachments Standard Operating Procedure - Groundwater Sampling <br /> Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court , Suite J Dublin , California 94568 ( 5 10 ) 551 - 7555 <br />