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CAMBRIA <br /> 0 23 4r1 S2 Jul 2001 <br /> July 19, <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 <br /> Re Groundwater Monitoring Report - Second Quarter 2001 <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 (Equiva) 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 (SJCPHS/EHD) <br /> SECOND QUARTER 2001 ACTIVITES <br /> Blaine Tech Services, Inc (Blaine) of San Jose, California gauged and sampled all site wells <br /> This event was not coordinated with the former Chevron station located at 301 West Kettleman <br /> Lane due to a miscommunication Future sampling events wild be coordinated Blaine prepared <br /> a summary table of field gauging data and gasoline constituents Cambria prepared an additional <br /> groundwater analytical data table (Table 1), a site vicinity map (Figure 1), and a groundwater <br /> elevation/chemical concentration map (Figure 2) Due to the geometrical layout of the three <br /> wells on the subject site, the groundwater elevations were not contoured Subsequent quarterly <br /> groundwater monitoring reports will include groundwater contour maps using groundwater data <br /> from the subject site and the former Chevron site Blaine's report, presenting the laboratory <br /> Oakland CA report, is included as Appendix A <br /> San Ramon, CA <br /> Sonoma CA No petroleum hydrocarbons, fuel oxygenates (including methanol and ethanol), <br /> 1,2-dichloroethane (1,2-DCA), or 1,2-dibromoethane (EDB) were detected in groundwater <br /> Cannbria <br /> Environmental beneath the site this quarter <br /> T nology,Inc <br /> Perkins Street <br /> P 0 Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-4850 <br /> Fax(707)935-6649 <br />