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CAM R <br /> May 17, 2001 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, California 95202 <br /> Re: First Quarter 2001 Monitoring and Remediation Report t <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 /> FIRST QUARTER 2001 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 onsite <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 /> Groundwater Remediation: The GWE system, which extracts groundwater from well EW-1 at <br /> approximately 5 gallons per minute, was started on March 10, 2000. Analytical results from the <br /> Oakland, CA <br /> San Ramon, CA GWE system sampling are summarized in Table 2 and presented as Attachment B. An estimate <br /> Sonoma, CA of contaminant mass removed by the GWE system through March 27, 2001 is included in <br /> Table 3, and is summarized in the following table: <br /> Cambria <br /> mviyonmenTa1 <br /> Technology,Inc. <br /> W4 65th Street <br /> Suite B <br /> Oakland,CA 94608 <br /> Tel(510)420-0700 <br /> Fax(510)420-9170 <br />