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• <br /> • <br /> 58 <br /> • <br /> Terracon <br /> Mr. Randy Schafer <br /> Page 3 <br /> June 23, 1993 <br /> ELI Project No. 20935124 <br /> 1. Silty Sand and Sand With Gravel: The upper granular stratum was encountered at the <br /> surface of all three borings drilled at the site and extends to depths of 2' to 6% feet <br /> below the surface. The sand contains varying amounts of silt and gravel and is medium <br /> dense in its moist in situ condition. <br /> 2. Sandy Lean Clay: The clay stratum was encountered below the granular stratum and <br /> extends to depths of 7 to 10 feet below the surface. The lean clay is plastic, contains <br /> varying amounts of sand, and is medium stiff to stiff in its moist in situ condition. <br /> 3. Sand, Sand With Gravel and Clayey Sand with Gravel: The lower granular stratum was <br /> encountered below the clay layer and extends to depths of 18% to 21 '% feet below the <br /> surface. The sand contains varying amounts of clay and gravel and is medium dense in its <br /> moist in situ condition. - <br /> 4. Claystone-Sandstone Bedrock (Ogallala Formation): The claystone-sandstone portion of <br /> the Ogallala Formation was encountered at depths of 113% to 21 % feet below the surface <br /> in Borings 1 and 3, respectively. This material was also encountered interbedded in the <br /> sandstone-conglomerate portion of the Ogallala Formation in Boring 2 at a depth of 33'/x <br /> feet below the surface. The claystone-sandstone bedrock is highly weathered and is firm <br /> in its moist in situ condition. <br /> 5. Conglomerate and Sandstone Bedrock (Ogallala Formation): The conglomerate-sandstone <br /> bedrock portion of the Ogallala Formation was encountered at depths of 19 to 40% feet <br /> below the surface in all three borings drilled at the site and extends to the depths explored. <br /> The conglomerate-sandstone bedrock encountered is weathered and is dense in its moist <br /> in situ condition. <br /> Groundwater was not encountered in any of the test borings at the time of the field exploration. <br /> These observations represent only current groundwater conditions and may not be indicative of <br />