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Geotechnical Data Technical Memorandum <br />Hazeltine -Road Runners Rest II Gravel Pit Lining Project <br />December 2000 <br />TABLE 4.3 <br />Summary of Laboratory Index Test Results <br />on Foundation Bedrock Samples <br /> Percent Passing <br />No. 200 Sieve Atterberg <br />Limits <br /> <br />Boring <br />Number Sample <br />Depth <br />(ft) <br />Fines <br />(%) <br />Liquid <br />Limit <br />Plasticity <br />Index Predominant <br />Bedrock <br />Type <br />B-102 18.7-19.5 - 47.9 35.3 claystone <br />B-105 38.0-38.5 - 39.3 26.9 siltstone <br />B-109 66.5-67.0 11.7 NP NP sandstone <br />B-116 48.0-48.5 47.8 35.2 22.2 sandstone <br />4.3.2 Strength Tests <br />Unconfined compression strength laboratory tests were performed on ten representative <br />samples of bedrock. The test results are summarized in Table 4.4. <br />TABLE 4.4 <br />Summary of Laboratory Strength Test Results <br />on Foundation Bedrock Samples <br /> <br />Boring <br />Number Sample <br />Depth <br />(ft) Unconfined <br />Compressive Strength <br />(psi) <br />Predominant <br />Bedrock Type <br />B-102 18.7-19.5 170 claystone <br />B-102 23.6-24.2 110 claystone <br />B-105 38.0-38.5 1760 siltstone <br />8-105 42.5-43.0 660 siltstone <br />B-109 53.5-54.0 1110 claystone <br />B-109 67.0-67.5 220 sandstone <br />B-112 18.0-18.5 80 claystone <br />B-112 25.5-26.0 220 claystone <br />B-113 44.0-44.5 110 sandstone <br />B-113 50.0-50.5 220 cla stone <br />uesisgro ~m,.pa ~ GEI Consultants, Inc. <br />4-3 <br />