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V <br /> . C A M B R I A JAN 07 2002 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> January 2, 2002 <br /> Ms. Lori Duncan <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue,Third Floor <br /> Stockton, California 95202 <br /> I <br /> Re: Groundwater Monitoring Report-Third Quarter 2001 <br /> Former Texaco Service Station <br /> 440 West Charter Way <br /> i <br /> Stockton, California <br /> SAP Code 121258 w <br /> Incident No. 88870583 <br /> SJCPHS/EHD Site Code: 1055 <br /> Dear Ms. Duncan: <br /> Cambria Environmental Technology, Inc. (Cambria) prepared this report on behalf of Equiva <br /> i <br /> Services LLC in accordance with quarterly reporting requirements issued by the Central Valley <br /> I <br /> Regional Water Quality Control Board and San Joaquin County Public Health Services, <br /> Environmental Health Division(SJCPHS). <br /> 3 <br /> THIRD QUARTER 2001 ACTIVITIES <br /> f <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 the <br /> additional constituents and oxygenates (Table `'1), prepared a site vicinity/well survey map 1 <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 /> FOURTH QUARTER 2001 ACTIVITIES <br /> - i <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 <br /> Sonoma. C A CONCLUSIONS AND RECOMMENDATIONS <br /> Cambria Groundwater samples collected from the monitoring wells this quarter contained petroleum <br /> Environmental <br /> Technology,al hydrocarbon concentrations similar to previous quarters' concentrations. <br /> 'Perkins Street F <br /> P.O.Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 i <br />