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e <br /> i r j /r rr� <br /> P /7 V <br /> C A M B R I A rr '� <br /> i <br /> r f ply '? March 5, 2002 <br /> 2 <br /> Mr Jeffrey Wong <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re Groundwater Monitoring Report— Fourth Quarter 2001 <br /> Former Shell Service Station/Econoline Fuel <br /> 880 Victor Road <br /> Lodi, California <br /> SAP Code 135446 <br /> Incident No 98995526 <br /> SJCPHS/EHD Site Code 1746 <br /> Dear Mr Wong <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC in accordance with quarterly reporting guidelines issued by the Central Valley <br /> Regional Water Quality Control Board and San Joaquin County Public Health Services, <br /> Environmental Health Division(SJCPHS/EHD) <br /> FOURTH QUARTER 2001 ACTIVITIES <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled all site wells and <br /> prepared a summary table of field gauging data and gasoline constituents (Appendix A) <br /> Cambna compiled the oxygenate and lead scavenger data (Table 1), prepared a site vicinity map <br /> (Figure 1), and prepared a groundwater contour/chemical concentration map (Figure 2) Blaine's <br /> report,presenting the laboratory report, is included as Appendix A <br /> ANTICIPATED FIRST QUARTER 2002 ACTIVITES <br /> Blaine will gauge and sample the site wells according to the existing sampling schedule and <br /> tabulate the data Cambria will prepare a groundwater monitoring report <br /> Oakland CA <br /> San Ramon CA CONCLUSIONS AND RECOMMENDATIONS <br /> Sonoma, CA <br /> Cambria Groundwater flow direction this quarter is westerly There have been historical fluctuations at <br /> Environmental <br /> Technology,Inc this site, although the magnitude of the groundwater gradient is fairly low <br /> laerkms Street <br /> P 0 Box 259 <br /> Sonoma CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 ' <br />