Laserfiche WebLink
<�kS EC ® R <br /> DATE October 1 2004 <br /> 7-ELEVEN, INC. QUARTERLY REPORT <br /> • Store Number 7-Eleven Store#32262 <br /> Site Address 2360 West Grant Line Road, Tracy, CA <br /> 7-Eleven Contact Mr Ken Hilliard <br /> Consulting Company SECOR International, Inc — Mr Jaff Auchterlonie <br /> SECOR Project No 77EL 32262 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 seven wells on July 30, 2004 <br /> 2 Prepared quarterly groundwater sampling report <br /> 3 Install two cone penetrometer test (CPT) borings, three groundwater monitoring wells, one <br /> oxygen injection well, and one groundwater extraction well <br /> 4 Conduct oxygen injection test and groundwater extraction feasibility test <br /> WORK PROPOSED FOR NEXT QUARTER [Fourth —2004] <br /> 1 Perform quarterly groundwater sampling and prepare report <br /> 2 Submit Site Assessment, Remediation Feasibility Testing, and Site Conceptual Model <br /> DISCUSSION <br /> The site is currently an operating 7-Eleven convenience store and gasoline station Two <br /> 10,000-gallon underground storage tanks (USTs) and one 15,000-gallon UST are located in <br /> the southeastern portion of the property (Figures 1 and 2) The current groundwater <br /> monitoring and sampling data are summarized in Table 1, and presented on Figure 2 and <br /> Figure 3 Historical groundwater monitoring and sampling results are summarized in Table <br /> 2 The well completion details are summarized in Table 3 <br /> Current Site Information <br /> Current Phase of Project Groundwater Monitoring <br /> Frequency of Monitoring and Sampling Quarterly, Ten wells- MW-1 through <br /> MW-5, MW-6D, MW-7 through MW-9, <br /> and TP-1 <br /> Are Liquid Phase Hydrocarbons Present On-site No <br /> Water Supply Wells within a 2,000-foot radius and One well 850 feet southwest, five <br /> their Respective Direction domestic wells 1,750 to 2,000 feet <br /> northeast <br /> Current Remediation Techniques None <br /> Permits for Discharge None <br /> Historic Range in Depth to Water, Q4-03 to Q3-04 MW-1, 8 76 to 9 24 feet bgs <br /> d <br /> 32262 04-3Q Report doc <br /> J <br />