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Geotechnical Data Technical Memorandum <br />Hazeltine -Road Runners Rest II Gravel Pit Lining Project <br />December 2000 <br />TABLE 4.6 <br />Summary of Bedrock Packer Permeability Test Results <br /> <br />Test Zone Rock Mass Hydraulic Conductivity (cm/sec) <br /> <br /> <br />Boring Depth <br />Below Top <br />of Bedrock <br /> <br />Predominant General Weathering <br />and Fracturing <br />Characteristics Test Pressure (approximate percent of estimated effective <br />overburden pressure) <br />Number (ff) Bedrock Type 50 75 90 75 50 <br />8-114 31-38 claystone slight-moderate 3.4E-OS 4.3E-OS 5.8E-05 3.2E-OS 4.2E-05 <br />B-115 4.11 Gaystone slight-intense ' <br />B-115 1421 claystone intense ' <br />B-116 7-14 Gaystone moderate-intense 3.5E-OS 2.9E-OS 3.6E-05 2.9E-OS ' <br />B-116 17-24 sandstone slight-intense 3.7E-05 6.2E-06 7.6E-06 6.2E-06 4.6E-06 <br />B-117 5-12 daystone moderate-intense - - - <br />B-117 12-22 daystone slight-intense 6.9E-OS 4.3E-05 4.7E-05 4.3E-05 3.4E-OS <br />B-117 18-27 claystone slight 5.9E-OS 4.4E-05 3.7E-05 4.4E-OS 3.4E-05 <br />8-117 27.37 sandstone v. slight-slight 3.4E-OS 1.4E-OS 1.7E-OS 1.3E-OS <br />B-118 8.15 daystone/ <br />sandstone/ <br />siltstone slight-moderate 5.9E-05 1.2E-05 1.9E-05 2.4E-OS 2.0E-05 <br />B-118 15-25 Gaystone non-intense 4.6E-06 ' <br />&119 5-12 daystone (no recovery) 7.8E-05 1.2E-04 1.2E-04 1.0E-04 9.3E-05 <br />8-119 12-22 daystone slight-intense 5.0E-06 8.1E-06 1.3E-05 8.1E-06 1.0E-05 <br />B-120 9-16 claystone moderate-intense 2.3E-04 1.8E-04 1.9E-04 1.8E-04 1.7E-04 <br />B-120 16-26 claystone slight-v. intense 9.3E-06 7.9E-06 9.3E-06 ' <br />~ . The "'° indicates that the bedrock did not take any water during the packer permeability test, which indicates a <br />hydraulic conductivity that is less than 1.0 x 10-' cm/s (centimeters per second). <br />2. The "-' indicates that the test was not conducted at this pressure. <br />4.4 Borrow Materials <br />Two phases of laboratory tests were performed on selected samples of potential materials for use in <br />liner and slope construction. Index tests were performed during Phase One. Compaction, hydraulic <br />conductivity, strength, and index tests were performed during Phase Two. <br />GEI Consultants, Inc. 4_6 48?ISrco_imvpd <br />