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Martin Marietta Materials <br /> Spec-Agg 2017 Annual Report <br /> Ultimately, a total of nine (9) discontinuity sets were identified and analyzed for this annual report's <br /> structural discontinuity analysis. The discontinuity orientations are shown in Figure 7 and summarized in <br /> Table 1 below. <br /> Table 1: Representative Discontinuity Orientations <br /> Representative Orientation (Dip/Dip Direction) <br /> Discontinuity Set 2015 Annual Report 2016 Annual Report 2017 Annual Report <br /> F-1 (Foliation) 340/1700 330/1700 330/171° <br /> F-2 (Foliation) 240/2500 220/2760 220/276°(unchanged) <br /> F-3 (Foliation) Not observed Not observed Not observed <br /> P-1 (Joint) 740/1720 720/175° 740/171° <br /> P-2 (Joint) 560/0840 570/0880 590/090' <br /> P-3 (Joint) 680/256° 680/256° (unchanged) 680/256° (unchanged) <br /> P-4 (Joint) 72°/2990 74°/2990 74°/2990(unchanged) <br /> P-5 (Joint) 680/3540 68°/3540 (unchanged) 680/3540 (unchanged) <br /> P-6 (Joint) 600/0240 590/028° 590/0250 <br /> P-7 (Joint) 650/2150 65°/2150 (unchanged) 65°/212° <br /> 6.2 Slope Geometry <br /> Wall orientations used in this report are based on the mine plan developed by Martin Marietta in <br /> December, 2003 (Figure 2). The wall designations, slope angles, and slope dip directions used to <br /> represent the final quarry walls are presented in Table 2 below. <br /> Table 2: Representative Quarryall Orientations <br /> Wall Designation Slope Angle0) Slope Direction of Wall(2) <br /> East Wall 1 45' 2420 <br /> East Wall 2 450 270' <br /> Northeast Wall 1 350 1750 <br /> Northeast Wall 2 45' 2250 <br /> Northeast Wall 3 450 1760 <br /> Northwest Wall 350 1510 <br /> West Wall 1 450 0910 <br /> West Wall 2 450 1200 <br /> West Wall 3 450 091, <br /> Southwest Wall 1 450 0160 <br /> Southwest Wall 2 450 036' <br /> South Wall 45° 0000 <br /> Southeast Wall 45° 3350 <br /> Notes: <br /> 1 Slope angles are measured relative to the horizontal. <br /> 2 Slope orientations are presented as dip directions measured from true north (0°). <br /> February 27,2017 Page 6 Lachel &Associates, Inc. <br /> Project 16C64003 00 ©2017 All Rights Reserved <br />