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L <br /> EI Dorado Environmental, Inc. <br /> 2221 Goldorado Trail, EI Dorado, California 95623 (916)626-3898 <br /> Fax(916)626-3899 <br /> February 28, 1997 <br /> Mr Kenneth Earnest <br /> Senior Project Manager <br /> Ultramar Inc <br /> 525 West Third Street <br /> Hanford, California 93230 <br /> Subject First Quarter 1997 Ground Water Monitoring Report <br /> Former Beacon Station #695 <br /> 900 South Cherokee Lane, Lodi, California <br /> Dear Mr Earnest <br /> El Dorado Environmental, Inc (EDE) has prepared this report to document the results of quarterly <br /> ground water monitoring conducted on February 3, 1997 at the subject site (Figure 1) The <br /> monitoring, conducted by Doulos Environmental (Doulos), included measurements of depth to <br /> ground water, subjective analysis for the presence or absence of free product, ground water purging <br /> and collection of ground water samples Doulos reports that all field activities were conducted in <br /> accordance with the Ultramar Field Procedures described in Attachment A <br /> GROUND WATER ELEVATIONS <br /> Prior to purging, Doulos collected depth to ground water measurements Copies of Doulos' field <br /> data sheets are contained in Attachment B Ground water elevation data collected since February <br /> 1992 are summarized in Table 1 Historical ground water elevation data are included in Attachment <br /> C On the basis of the current measurements, ground water flows toward the south-southeast <br /> (Figure 2) at a gradient of less than 0 01 foot per foot Ground water levels increased an average of <br /> 3 55 feet compared to the last monitoring event <br />