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' Vermillion Ranch Limited Partnership/Surface Water Impoundment 13659-RX <br /> 2. Sampling with a 2-inch O.D. split-barrel (split-spoon) per ASTM D1586, <br /> "Penetration Test and Split-Barrel Sampling of Soils." Eighty (80) such tests <br /> were performed. <br /> 3. Sampling with a 2.5-inch I.D., thick-wall, ring-lined, split-barrel, drive sampler <br /> per ASTM D3550. Eleven(11) such samples were obtained. <br /> The soil samples were field classified by a Geotechnical Engineer, sealed in containers to <br /> prevent loss of moisture, and returned to our laboratory. They were then inspected by a <br /> Geotechnical Engineer prior to the preparation of this report, and reclassified visually in <br /> accordance with ASTM D2488. <br /> d for each boring during drilling. After the retrieved samples were <br /> A field log was prepare g g g <br /> checked in the laboratory, a Final Log for each boring was prepared containing the work <br /> method, samples recovered, and the indication of the presence of various soil types. The Final <br /> Logs are bound into Appendix B. <br /> The Final Logs contain both factual and interpretive information. On the Final Logs,horizontal <br /> lines are approximate, and designate the interface between differing soil strata encountered. <br /> The transition between soil layers may be gradual. We emphasize that our recommendations <br /> 1 are based only on the Final Logs. <br /> Laboratory Testing Program <br /> ' In order to classify the recovered samples and determine their engineering properties, the <br /> following laboratory soil tests were performed: <br /> ' TESTS <br /> 1. Moisture Content(ASTM D2216) 90 <br /> 2. Atterberg Limits (ASTM D4318) 15 <br /> 3. Sieve Analysis -#200 (ASTM D1140) 11 <br /> 4. Sieve Analysis (#4 to#200) (ASTM D422 and D1140) 4 <br /> 5. Water Soluble Sulfate(AASHTO T290) 2 <br /> The sieve analyses are presented graphically in Appendix C. All other test results are arrayed <br /> on the Final Logs. <br /> Site Conditions <br /> The proposed earthen dam location is situated in the NE'/4 of Section 18, T.11N., R.101W., <br /> 6th P.M., Moffat County, Colorado. Talamantes Creek flows through the center of the subject site <br /> towards the east. The topography of the site slopes down to Talamantes Creek from upland areas <br /> north and south of the creek. Claystone bedrock was observed in a road cut immediately north of <br /> 1 INBERG-MILLER ENGINEERS <br /> 3 February 26,2009 II <br />