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boring were submitted for laboratory testing including Moisture Density Relationships, <br /> Unconfined Compressive Strength with Young's Modulus, Direct Shear, and Slake <br /> Durability. Laboratory testing is discussed in Section 3.1. The borehole advanced by Tetra <br /> Tech is summarized in Table 1. <br /> 2.2 2017 Geotechnical Investigation <br /> Al performed a subsurface investigation to characterize the bedrock in the South Quarry. A <br /> total of four boreholes were advanced using NQ wireline coring methods (MQ-1-17-MQ- <br /> 4-17). The boreholes were advanced to depths of 572 feet, 487 feet, 250 feet, 500.5 feet, <br /> respectively. Borings were located throughout the South Quarry and advanced between <br /> April 24, 2017 and May 9, 2017. The location of 2017 series borings are included on <br /> Figure 3. <br /> Al provided general drilling oversight, logged the core in intervals and provided core logs to <br /> GEI (logs are draft as of June 7, 2017). The boreholes were logged for depths to rock strata. <br /> The core logs are included in Appendix A, and the boreholes are summarized in Table 1. <br /> Table 1. Summa of South Quarry Drilling Pro ram <br /> rNoo! <br /> rizontal Coordinates r Wathe ng <br /> Ground Topographic Depth to Slightly <br /> Borehole Surface Depth Datum(See Weathered to Weathered <br /> _ ID__ El.(_ft) _hin Eastin (ft) Inclination Table Notes) _ Zones <br /> L man Henn 2005 Exploration <br /> LH-01 7004 1653379.0 3082662.6 40.5 90 2 0 40.5' <br /> LH-02 7000 1652872.9 3082650.4 31.0 90 2 0 31.03 <br /> LH-02A 7000 1652872.9 3082650.4 94.0 90 2 0 93.23 <br /> LH-03 6818 1652809.1 3083166.7 38.5 90 2 0 38.53 <br /> LH-04 6848 1653836.6 3082873.6 40.3 90 2 0 40.33 <br /> LH-05 6821 1654150.8 3082497.2 26.5 90 2 0 26.53 <br /> LH-06 6731 1653806.8 3083434.8 195.0 90 2 Upper Lower <br /> 37.5-75 110.5-190 <br /> LH-07 7005 1653998.1 3081982.9 70.5 90 2 0 70.53 <br /> Al 2007 Ex loration <br /> 2007 PH 7027 1653334.0 3082634.1 500.0 90 1 Upper Lower <br /> 1-1 0-120 295-405 <br /> 2007 PH 6941 1653268.8 3083230.0 350.0 90 2 0 150 <br /> 1-2 <br /> 2007 PH 6775 1653641.1 3083220.7 300.0 90 2 Upper Lower <br /> 1-3 0-189 235-300 <br /> GEI 2007-2008 Exploration <br /> 2007 PH 6768 1653680.0 3083088.6 685.0 90 2 Upper Lower <br /> 2-1 0-112 180-354 <br /> 2007 PH 6771 1653741.1 3082997.4 500.0 70 2 Upper Lower <br /> 2-2 0-40 140-500 <br /> 2007 PH 6823 1652859.0 3083203.2 495.0 70 2 0 120 <br /> 2-3 <br /> 2008 PH 6902 1653020.4 3082806.2 600.5 70 1 Upper Lower <br /> 3-1 0-100 180-290 <br /> 2008 PH 7025 1653670.1 3082330.2 350.5 70 2 Upper Lower <br /> 3-2 0-145 1 250-355 <br /> Aggregate Industries Morrison Quarry GEI Consultants, Inc. <br /> South Quarry Highwall Design Technical Revision 6 August 2017 <br />