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Morrison Quarry AM-07 Geotechnical Stability Exhibit <br /> DRMS Permit M-1973-021 <br /> Aggregate Industries WCR Inc. <br /> Discontinuity Persistence <br /> Set 1Set 2Set 3 Set 4 Set 5 <br /> ----------------- ----- - --- - ----------- <br /> Very Low(6) <1m(<3.3 ft) Notes: <br /> ------------------- --------------------------------------------------------------------------------------------------------------- <br /> Low <br /> 1-3 (3.3-9.9ft) X X <br /> ------------------- m <br /> --------------------------------------------------------------------------------------------------------------- <br /> Medium(2) 3-10 m(9.9-33 ft) X X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> High(1) 10 20 m(33-66 ft) X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Very High(0) >20 m(>66 ft) X <br /> Discontinuity Separation(Aperture) <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> Very Tight Joints(6) <0.1 mm(<0.003 in) X X X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Tight Joints(5) 0.1-0.5 mm(0.003-0.02 in) X X X <br /> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Moderately- ---------Open Joints(4) 0.5--2.5- -mm(0.02-0.1 in) <br /> -- ------------------------------------- --- --- - --------------------------------------------------------------------------------------------------------------------------------- <br /> Open Joints(1) 2.5-10 mm(0.1-0.4 in) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Very Wide Aperture(0) >10 mm(>0.4 in) <br /> Discontinuity Roughness <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> Very Rough Surfaces(6) VR Notes: <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Rough Surfaces(5) R X X X <br /> -------------------------ce------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Slightly Rough Surfas(3) SR X X X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Smooth Surfaces(1) SM <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Slickensided Surfaces(0) SL <br /> Discontinuity Wall Face Weathering <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> Unweathered(6) UW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Slightly Weathered(5) SW X X X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Moderately Weathered(3) MW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Highly Weathered(1) HW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Completely Weathered(0) CW <br /> R ;iclual Soil(0)-------------------------------R--S----------------------------------------------------------------------------------------------------------------------------------------- <br /> RMR Classification: 36-Poor to 55-Fair <br /> Additional Notes: trending 10 deg; highly variable joint sets throughout section,vertical pegmatite at 7+10. No groundwater inflow observed. <br /> Some iron oxide staining on some Set 3 and Set 4 joint surfaces. <br /> GEI Consultants,Inc. 18 of 122 Appendix C 2 <br /> November 2020 <br />