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l � <br /> UETTLER - RYA At AN - � <br /> April 17, 1998 Job #5121 80 <br /> Mr Brett Hunter <br /> Chevron Products Company <br /> P O Box 6004 <br /> San Ramon, CA 94583 <br /> Re First Quarter 1998 Groundwater Monitoring Sampling Report <br /> Chevron Service Station #9-6I71 <br /> 6633 Pacific Avenue <br /> Stockton, California <br /> Dear Mr Hunter <br /> This report documents the quarterly groundwater monitoring and sampling event performed by Gettler-Ryan <br /> Inc (G-R) On March 1, 1998, field personnel were on-site to monitor and sample six wells (MW-2 through <br /> MW-7) at Chevron Service Station #9-6171 located at 6633 Pacific Avenue in Stockton, California <br /> Static groundwater levels were measured and all wells were checked for the presence of separate-phase <br /> . hydrocarbons Separate-phase hydrocarbons were not present in any of the wells Static water level data and <br /> groundwater elevations are presented in Table I A Potentiometric Map is included as Figure 1 <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 and 4, respectively <br /> The chain of custody document and laboratory analytical reports are enclosed <br /> In addition, Levine-Fricke-Recon collected split samples from four of the monitoring wells (MW-2, MW-3, MW- <br /> 5, and MW-6) The samples were analyzed by Quant`rra Environmental Services and rhe analytical results a.e <br /> reported in Table 3 <br /> 1-hank you for allowing Gettler-Ryan Inc to provide environmental services to Chevron Please call if you have <br /> any questions or comments regarding this report <br /> IL�� <br /> S� D GplODeanna L HardinQ���J Gl�1-- <br /> Project Coordinatory� tom` <br /> N0. 5577 <br /> Stephen J Carte <br /> Senior Geologist, RG No 5577 <br /> PLii/SJCJdih OF CALIF�Q` <br /> r 5121 QML <br /> 6747 Surra Court , Suite J Dublin , California 94568 ( 925 ) 551 - 7555 <br />