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February 1, 2001 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Public Health Services <br /> Environmental Health Division t <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, California 95202 <br /> Re: Fourth Quarter 2000 Monitoring and Remediation Report � <br /> Shell-branded Service Station <br /> 341 East Main Street <br /> Ripon, California <br /> Incident#98995874 <br /> Cambria Project#243-0324-002 <br /> SJCEHD Site Code: 506186 <br /> Dear Ms. Lagorio: <br /> On behalf of Equiva Services LLC, Cambria Environmental Technology, Inc. (Cambria) is <br /> submitting this groundwater monitoring report in accordance with the reporting requirements of <br /> 23 CCR 2652d. <br /> FOURTH QUARTER 2000 ACTIVITIES <br /> Groundwater Monitoring: Blaine Tech Services, Inc. (Blaine) of San Jose, California gauged <br /> and sampled all wells, and compiled the gasoline constituents data. Cambria compiled <br /> groundwater analytical data for oxygenate compounds (Table 1) and analytical data from the <br /> groundwater extraction (GWE) system (Tables 2 and 3), and prepared two groundwater elevation <br /> contour maps (Figures 1 and 2.) Blaine's report, presenting the laboratory report and supporting <br /> field notes, is included as Attachment A. <br /> Oakland, CA <br /> San Ramon, CA Interim Groundwater Remediation: Blaine began weekly purging of onsite monitoring well <br /> Sonoma, CA MW-1 on November 10, 1998 and onsite extraction well EW-1 on March 11, 1999. This practice <br /> Portland, OR continued until the GWE system was started in March 2000. <br /> Cambria <br /> Environmental <br /> Technology,Inc. <br /> 144 65th Street <br /> Suite B <br /> Oakland,CA 94608 <br /> Tel(510)420-0700 <br /> k <br /> Fax(510)420-9170 <br />