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DATE November 1, 2004 E C ® R <br /> 7-ELEVEN, INC. QUARTERLY REPORT <br /> Store Number 7-Eleven Store #14117 <br /> Site Address 2725 Country Club Boulevard, Stockton, CA <br /> 7-Eleven Contact Mr Ken Hilliard <br /> Consulting Company SECOR International, Inc — Mr Jaff Auchterlonie <br /> SECOR Project No 77EL 14117 04 <br /> Primary Agency San Joaquin County Environmental Health Department <br /> (SJCEHD) <br /> WORK PERFORMED THIS QUARTER [Third —2004] <br /> 1 Conducted groundwater monitoring and sampling of eight wells on September 16, 2004 <br /> 2 Prepared quarterly groundwater sampling progress report <br /> 3 Submitted proposal for Field Test Program for Evaluation of Oxidation Capacity of <br /> Groundwater dated July 22, 2004 to the RWQCB <br /> 4 Submitted Work Plan for Additional Offsite Assessment dated July 27, 2004 to the <br /> SJCEHD <br /> 5 Submitted Field Test Program for Evaluation of Oxidation Capacity of Groundwater dated <br /> August 31, 2004 <br /> 6 Sent Access agreements to USA Gasoline and Mr Charles Putmon Submitted <br /> encroachment permits to the City of Stockton <br /> . WORK PROPOSED FOR NEXT QUARTER [Fourth —2004] <br /> 1 Perform quarterly groundwater sampling and prepare status report <br /> 2 With approval of the encroachment permits and access agreements, conduct the <br /> assessment and oxidation capacity testing <br /> DISCUSSION <br /> The site is a 7-Eleven convenience store and gas station (Figures 1 and 2) Underground <br /> storage tanks (USTs) at the site were replaced in July 1998 Monitoring and sampling has <br /> been conducted at the site since the third quarter of 1999 The current groundwater <br /> monitoring and sampling data are summarized in Table 1, and presented in Figures 2 and <br /> 3 Historical groundwater monitoring and sampling results are summarized in Table 2 The <br /> well completion details are summarized in Table 3 An active USA Gasoline (former Exxon) <br /> service station is located east of the site <br /> Current Site Information <br /> Current Phase of Project Groundwater Monitoring <br /> Frequency of Monitoring and Sampling Quarterly, Eight wells - MW-1 through <br /> MW-8 <br /> Are Liquid Phase Hydrocarbons Present On-site No <br /> Water Supply Wells within a 2,000-foot radius and 12 domestic wells in various <br /> their Respective Direction directions, nearest is 400 feet north- <br /> northwest <br /> Current Remediation Techniques None <br /> Permits for Discharge None <br /> 14117 04-30 Report doc <br />