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S <br /> GETTLER - RYAN �1VC. <br /> March 18, 1996 Job #5121 80 <br /> Mr Brett Hunter <br /> Chevron USA Products Company <br /> P O Box 5004 <br /> San Ramona, CA 94583 <br /> Re 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 GettIer-Ryan Inc (G-R) On February <br /> 12, 1996, field personnel were on-site to monitor and sample six wells(MW-2 through MW-7)at Chevron Service Station <br /> #9-6171 located at 6633 Pacific Avenue, in Stockton, California <br /> Static groundwater levels were measured on February 12, 1996 All wells were checked for the presence of separate- <br /> phase hydrocarbons Separate-phase hydrocarbons were not present in any of the site wells Static water Ievel data and <br /> groundwater elevations are presented in Table 1 A potentiometric map is included as Figure 1 <br />• Groundwater samples were collected from the monitoring wells as specified by G-R Standard Operating Procedure - <br /> Quarterly Groundwater Sampling (attached) The field data sheets for this event are also attached The samples were <br /> analyzed by Sequoia Analytical Analytical results are presented in Tables 1, 2 and 3 The chain of custody document <br /> and laboratory analytical reports are enclosed <br /> Thank you for allowing Gettler-Ryan to provide environmental services to Chevron Please call if you have any questions <br /> or comments regarding this report <br /> Sincerely, <br /> eannaLmH ding <br /> .w v <br /> o3ect Coo d for <br /> pennY S"ler u- <br /> 4/nnn <br /> areologist,z R No 5523 NQ � � <br /> � 4- <br /> DLH/PLS/dlh �lF QF CA���G <br /> 5121 QML <br /> Figure 1 Potentiometric Map <br /> Table 1 Water Level Data and Groundwater Analytical Results <br /> Table 2 Analytical Results - Volatile Organic Compounds <br /> Table 3 Analytical Results - Bacteriological Elements <br /> Attachments Standard Operating Procedure - Quarterly Groundwater Sampling <br /> 0 Field Data Sheets <br /> Chain of Custody Document and Laboratory Analytical Reports <br /> 6747 Sierra Court , Suite J Dublin California 94568 ( 51 0 ) 551 -7555 <br />