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r� J. H. KLEINUADER & ASSOCIATES File No. S-2314-1 August 15 , 1978 PAGE FIVE r. metal thermometer into the soil sluff at the bottom of the hole. A reading was taken with the thermometer still in the soil. This procedure was previously discussed with Mr. Glen Mortensen. r The readings obtained varied from 80OF at the 2-foot ` depth to approximately 70OF at the 10-foot depth. The outside temperature during the time these measurements were made varied from 85 to goo F. According to Mr. Mortensen, the ground temper- ature below approximately 5 feet should be on the order of 600F. Therefore, we conclude that accurate measurements of the soil temperature were not obtained. At the request of Mr. Mortensen, another attempt at obtaining this information may be made at a later date using different equipment. t I SOIL CONDITIONS i The surface soils encountered at the points explored generally consist of dark-brown to black silty clay with fine sand. These soils are generally very-stiff to hard r' and extend to depths varying from approximately 1 to 3 feet below the existing ground surface. The surface silt clay Y soils are underlain by interbedded strata or lenses of clayey and sandy silt, silty clay and clean and silty sand „ to the maximum depths explored. The silty and clayey soils are generally very-stiff to hard. The sandy soils are generally medium-dense to dense. Ground water was not encountered in any of the test borings drilled for this investigation. According to regional ground water maps , the depth to ground water is at least 70 feet below the ground surface. It is possible , -� however, that changes in ground water conditions could occur at this site at some time in the future due to variations in rainfall, ground water withdrawal , construction activities , or other factors not apparent at the time our borings were drilled .