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C A M B R I A <br /> October 17, 2001 <br /> Mr Harlin Knoll ` <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E Weber Avenue, Third Floor <br /> Stockton,California 95202 C <br /> Re Groundwater Monitoring Report -Third Quarter 2001 <br /> t� <br /> Shell-branded(Independent) Service Station <br /> 420 West Kettleman Lane <br /> Lodi, California <br /> SAP Code 135445 <br /> Incident No 98995525 <br /> SJCPHS/EHD Site Code 19061 <br /> Dear Mr Knoll <br /> Cambria Environmental Technology, Inc (Cambria) prepared this report on behalf of Equiva <br /> Services LLC (Equina) in accordance with quarterly reporting guidelines issued by the Central <br /> Valley Regional Water Quality Control Board (RWQCB) and San Joaquin County Public Health <br /> . Services,Environmental Health Division (SJCPHSIEHD) <br /> THIRD QUARTER 2001 ACTIVITES <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled all site wells <br /> This event was coordinated with the former Chevron station located at 301 West Kettleman <br /> Lane Blaine prepared a summary table of field gauging data and gasoline constituents Cambria <br /> prepared an additional groundwater analytical data table (Table 1), a site vicinity map (Figure 1), <br /> and extended site map (Figure 2), and a groundwater contour/chemical concentration map <br /> (Figure 3) Blaine's report, presenting the laboratory report, is included as Appendix A, and <br /> draft tables summarizing the former Chevron well gauging and analytical data are included in <br /> Appendix B <br /> Oakland CA Methyl tertiary butyl ether(MTBE)was detected at 22 parts per billion (ppb) in well MW-8 No <br /> San Ramon, CA <br /> Sonoma CA petroleum hydrocarbons or fuel oxygenates other than MTBE, were detected in groundwater <br /> Portland OR beneath the site this quarter <br /> Cambria <br /> Environmental Cambria submitted a Soil Remediation Work Plan on July 26, 2001, and received <br /> Technology,Inc SJCPHS/EHD's September 26, 2001 letter approving it <br /> *,Tkins Street <br /> P 0 Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />