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i <br /> C A M B R I A <br /> November 5, 2001 <br /> Ms Lori Duncan <br /> i <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Avenue, Third Floor = <br /> Stockton, California 95202 <br /> C-7) <br /> �3 - <br /> Re Groundwater Monitoring Report - Third Quarter 2001 <br /> Shell-branded Service Station <br /> 6131 Pacific Avenue <br /> Stockton, California <br /> SAP Code 136149 <br /> Incident No 98996189 <br /> SJCPHS/EHD Site Code 1223 <br /> Dear Ms Duncan <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC (Equiva) in accordance with quarterly reporting guidelines issued by the Central <br /> Valley Regional Water Quality Control Board and San Joaquin County Public Health Services, <br /> Environmental Health Division (SJCPHS/EHD) <br /> THIRD QUARTER 2001 ACTIVITES <br /> Blaine Tech Services,Inc (Blaine)of San Jose, California gauged and sampled the site wells and <br /> prepared a summary table of field gauging data and gasoline constituents Cambria compiled <br /> oxygenate data (Table 1), prepared a site vicinity map (Figure 1), and prepared a groundwater <br /> contour/chemical concentration map (Figure 2) Blaine's report, presenting the laboratory report, <br /> is included as Appendix A <br /> ANTICIPATED FOURTH QUARTER 2001 ACTIVITIES <br /> Cambria is scheduled to install four additional offsite groundwater monitoring wells (MW-8 <br /> through MW-11) on November 5 and 6, 2001 Blaine will develop the new wells, gauge and <br /> Oakland CA sample the new and existing wells, and tabulate the data Cambria will conduct a receptor survey <br /> San Ramon CA <br /> S o n o m a C A io identify water-producing wells and surfdLe water bodies within 2,000 feet of the subject site <br /> Cambria will prepare a site investigation/groundwater monitoring report that will include the <br /> Cambria receptor survey results <br /> Environmental <br /> Technology,Inc— - - ----- -- ---- -- -- -- ---- — - — ---- -- - --- ----- -- — --- -- <br /> 1091 Perkins Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />