2020-11-05_REVISION - M1973021 (16)

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Morrison Quarry AM-07 Geotechnical Stability Exhibit DRMS Permit M-1973-021 Aggregate Industries WCR Inc. South Quarry Morrison Quarry,Bench 7113,Section B,0+62-1+85 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set 1(Primary 1)-- -------------------------------------------------------------------------------78---------------WNW----------270----------- --- ---------------------8----- Set 1(Pri ----1) 70 Set 2(Primary 2) 173-----------------------------77------------------5-------------150-----------200---------70----------80---- ----------------------------------------------------------------------- Set 3(Secondary 1) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 4(Secondary 2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 5(Foliation) 305 20 NW 190 360 5 45 Estimated Strength of Intact Rock Material: Designation: Compressive Strength Range Estimated in Field Very High(15) >250 Mpa(>36,260 psi) ------------------------------------------------------------------------------------------------------------------- High(12) 100-250 Mpa(14,500-36,260 psi) X ----------------------------------------------------------- ------------------- ------------------------------------- Medium High(7) 50-100 Mpa(7,250-14,500 psi) X ------------------------------------------------------------------------------------------------------------------- Moderate(4) 25-50 Mpa(3,625-7,250 psi) ------------------------------------------------------------------------------------------------------------------- Low(?)------------- --------5 25 Mpa(725_3,625 psi) ------------------- ------------------------------------- Very Low(1) 1-5 Mpa(145-725 psi) Estimated Drill Core Quality(RQD) Designation: RQD Percentage Range Estimated in Field Excellent Quality(20) 90-100% ------------------------------------------------------------------------------------------------------------------- Good Quality(17) 75-90% X Fair ------------------------------------------------------------------------------------------------------------------- Quality(13) 50-75% X ------------------------------------------------------------------------------------------------------------------- Poor Quality(8)------------------------------25.50% ------X ------------------ -------------------------------------- ------------ Very Poor Quality(3) <25% Spacing of Discontinuities Set 1 Set 2 Set 3 Set 4 Set 5 Very Wide(20) ------------------------------>2m(>6.5 ft) Wide(15)-------------------------------------0.6_2 m(2_6.5 ft)-------------------------------------------------------------------------------------------------------- Moderate(10)-------------------------------200-600 mm(8_24 in)--------------------------X-------------------X X Close(8)--------------------------------------60_200 mm(2.4-8 in) ------X-------------------X------------------------------------------- X ---------- ------------------------------------ ----- Very Close(5) <60mm(<2.4 in) X X GEI Consultants,Inc. 27 of 122 Appendix C 2 November 2020