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C <br />• <br />Mr. James C. Stevens <br />July 12, 1996 <br />Page 2 <br />Standards are summarized in Tables 1 and 2 respectively. Copies of the laboratory report and <br />chain-of-custody form are attached. <br />Groundwater elevations were measured in the monitor wells on June 6, 1996. The top, north <br />side of the well casings were used as the reference elevation point to measure depth to <br />groundwater. Groundwater elevations were calculated using the measured groundwater elevation <br />data and the surveyed well casing elevations. The groundwater level measurements collected <br />during the site visit are included in Table 3. The groundwater gradient observed on June 6, <br />1996, was approximately 0.03 feet per foot (ft/ft) beneath the site. The groundwater flow <br />direction is to the southwest. A groundwater elevation contour map is provided as Figure 2. <br />Greystone appreciates the assistance of the Division of Minerals and Geology with this project. <br />If you have any questions, please contact me at (303) $50-0930. <br />S' erely, <br />~~.Q <br />ay Faliskie <br />Senior Project Manager <br />RF/ss <br />Enclosures <br />cc: Mr. Robert Vasquez, Costilla Counry <br />0711961S.LTR\494\I\7/12/96 <br />