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El Dorado Environmental, Inc. <br /> •j 2221 Goldorado Trail, EI Dorado, California 95623 (916)626-3898 <br /> Fax(916)626-3899 <br /> July 24, 1996 <br /> Mr. Kenneth Earnest <br /> Environmental Specialist <br /> Ultramar Inc. <br /> 525 West Third Street <br /> Hanford. California 93232-0466 <br /> Subject: Second Quarter 1996 Ground Water Monitoring Report <br /> Beacon Station #696 <br /> 2448 West Kettleman 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 June 28, 1996 at the subject site (Figure 1). The monitoring, <br /> conducted by Doulos Environmental (Doulos), included measurements of depth to ground water, <br /> subjective analysis for the presence or absence of free product, ground water purging and collection <br /> of ground water samples. Doulos reports that all field activities were conducted in accordance with <br /> 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 March 1992 <br /> are summarized in Table 1. Historical ground water elevation data are contained in Attachment C. <br /> On the basis of the current measurements, the direction of ground water flow varies from southwest <br /> to southeast (Figure 2), at a gradient of less than 0.01 foot per foot. Ground water elevations <br /> increased an average of 2.75 feet compared to the previous monitoring date. <br />