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Third Quarter 2002 Monitoring and Sampling Report 5 <br /> 7-Eleven, Inc Store No 17334,4501 North Pershing Avenue, Stockton, CA October 29,2002 <br /> 1 Additional lateral plume delineation offsite may be Indicated based on current and historical dissolved <br /> oxygenate distributions, specifically MTBE levels of over 1,000 ug/L in well MW-4, however, it is possible that <br /> dissolved MTBE in well MW-4 originates from a source other than 7-Eleven Additional well installation has <br /> been approved by the SJCPHS and access for offsite drilling is being actively pursued with offsite <br /> downgradient private property owner, Elvera Batres (Century 21, 4560 N Pershing Avenue, parcel number <br /> ' 110-210-07), to the northeast of the site (Attachment 1, Figure 3) Once access to drill offsite has been <br /> obtained, the SJCPHS will be notified, it is expected that additional drilling can be completed within 30 days of <br /> agreement of offsite access A workplan for Interim remediation will be submitted as appropriate, when <br /> requested by the SJCPHS If remediation is required by the SJCPHS, findings will be reported on a quarterly <br /> basis with groundwater analytical data <br /> 1 If you have any questions or comments concerning this quarterly report, please call our Concord office at <br /> (925) 288-2348 <br />' Sincerely, <br /> Shaw Environmental, Inc <br /> Submitted by Approved by <br /> Kim Metez Shelby Lathrop <br /> Staff Geologist Protect Manager <br /> Z <br /> Ed K Simonis, RKRt5 <br /> NQ 4422ySenior Geologist <br /> c Mr Harlin Knoll -San Joaquin Co Public Health Services/Environmental Health Dep artme �Fc�r'rFOt <br /> Mr James Brathovde—California Regional Water Quality Control Board-CVR <br /> Attachments <br /> 1 Figures <br /> 2 Tables <br />' 3 Field Data Sheets <br /> 4 Laboratory Analytical Report for Groundwater Samples <br /> 1 <br /> 1 <br /> 17334Q23 QMR DOC <br />