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 6850,Section B,2+00-3+30 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set1(Primary 1)-------------------------------------------------5------------------------------80------------------N---------------� -1-----------6----------- -- SetI(Primary ------------ ---- 80 90 Set 2(Primary 2)------------------------------------------------95-----------------------------85------------------E---------------------------- --- ---------80---------- -- Set 2(Primary----2) ---- Set 3(Secondary 1) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set4(Secondary2)---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 5(Foliation) 290 18 WNW 270 310 10 25 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(2)----------------------------------------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% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Fair Quality(13) 50-75`Yo X Poor Quality(8)------------------------------25_50/o ------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 -- -------------- ------------------ Cl-ose(8)--------------------------------------60_200 mm(2.4_-8 in)------------------- - - - ----------------------------------------------------------------------------------------------- Very Close(5) <60mm(<2.4 in) GEI Consultants, Inc 77 of 122 Appendix C 2 November 2020