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orientations measurements were taken from a safe distance from highwalls (approximately <br /> 30+ ft) due to mining activities and rockfall safety concerns. <br /> Joint and foliation orientations obtained during Annual Report mapping within the South <br /> Quarry were used for stability modeling using kinematic and global stability modeling <br /> software, including the Rocscience software suite. Five main discontinuity sets were <br /> identified during field investigations and mapped each year for Annual Reporting. These <br /> discontinuities are summarized below. <br /> 2.3.1 Foliation <br /> The foliation within the South Quarry strikes in a generally north-south to northwest- <br /> southeast direction. Measured foliations with South Quarry exhibit a strike range from 5 to <br /> 360 degrees, with a high degree of variability. Foliation dip measurements ranged from 5 to <br /> 80 degrees. The South Quarry foliation tends to dip in a southwest direction, but also exhibits <br /> a high degree of variability. The high variability of the foliation orientation within the South <br /> Quarry is typical of the geological events and source rock contributing to the geology found <br /> in and around Morrison Quarry. <br /> 2.3.2 Primary Northwest Trending Joint Set <br /> The primary northwest trending joint was observed at different locations in the South Quarry <br /> during Annual Report mapping to have average strike values ranging from 8 to 291 degrees <br /> and average dips ranging from 55 to 88 degrees. There is a high variability in the average <br /> strike and dip of this primary joint set which is typical of geology found in and around <br /> Morrison Quarry. <br /> 2.3.3 Primary Northeast Trending Joint Set <br /> The primary northeast trending joint set was observed at different locations in the South <br /> Quarry during Annual Report mapping to have average strike values ranging from 6 degrees <br /> to 343 degrees and average dips ranging from 58 to 88 degrees. There is high variability in <br /> the average strike and dip of this primary joint set which is typical of geology found in and <br /> around Morrison Quarry. <br /> 2.3.4 Secondary North Trending Joint Set <br /> The secondary north trending joint set was observed at different locations throughout the <br /> South Quarry during Annual Report mapping to have average strike values ranging from 60 <br /> to 347 degrees and average dips ranging from 45 to 78 degrees. <br /> Aggregate Industries Morrison Quarry GEI Consultants, Inc. <br /> South Quarry Highwall Design Technical Revision 8 August 2017 <br />