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Morrison Quarry AM-07 Geotechnical Stability Exhibit <br /> DRMS Permit M-1973-021 <br /> Aggregate Industries WCR Inc. <br /> South Quarry Morrison Quarry,Bench 7113,Section C.1+86-4+60 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set1(Primary 1)------------------------------------------------88 -----------------82 ---E--------------40------------ --- ---------6----------- -- <br /> Set1------ary 1- ------------ --------------- ---- <br /> Set2(Primary 2)----------------------------------------------- 232-----------------------------75-----------------SW--------------------------------------------------------------- <br /> Set140 Set 2------a ry 2-3(Secondary 1) -------------------------------------------------------------------- <br /> 3(Secondary <br /> 4(Secondary 2) --------------------------------------------------------------------------------------------- <br /> Set 4(Secondary <br /> 5(Foliation) 280 23 W 220 340 10 45 <br /> Estimated Strength of Intact Rock Material: <br /> Designation: Compressive Strength Range Estimated in Field <br /> Very High(15)------------------------------->250 Mpa(>36_260 psi) <br /> Very High 15) --------------------------------------- <br /> High(12)--------------------------------------100-250 Mpa(14_500_36,260 psi)--------------X------------ <br /> --- - ------------- - - - ----- <br /> Medium High(7) ----------------------------50_100 Mpa(7,250-14,500 psi) ----------------X-- <br /> -------------------- -------------------------- ---------- <br /> Moderate(4) 25-50 Mpa(3,625-7,250 psi) <br /> Low(2)------------------------------------- 5-25 Mpa(725_3,625 psi)------------------------------------- <br /> Very Low(1) 1-5 Mpa(145-725 psi) <br /> Estimated Drill Core Quality(RQD) <br /> Designation: RQD Percentage Range Estimated in Field <br /> Excellent Quality(20) 90-100% <br /> ------------------------------------------------------------------------------------------------------------------- <br /> GoodQuality(17)----------------------------75=90%-------------------------------------------X------------ <br /> Fair Quality(13) -----------------------------50-75%-------------------------------------------X <br /> ------------------- ------------ <br /> Poor Quality(8) 25-50% <br /> ------------------------------------------------------------------------------------------------------------------- <br /> Very Poor Quality(3) <25% <br /> Spacing of Discontinuities <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> VeryVery Wide(20) ------------------------------>2m(>6.5 ft) <br /> Wi--------- ------------------------------------------------------------------------------------------------------------------- <br /> Wide(15)-------------------------------------0.6_2 m(2_6.5 ft)-------------------------------------------------------------------------------------------------------- <br /> Moderate(10)-------------------------------200-600 mm(8-24 in) X-------------------X--------------------------------------------x <br /> Close(8)--------------------------------------60-200 mm(2.4-8 in) ---------------------------X-------------------------------------------X <br /> ---------- ------------------------------------ ----- <br /> Very Close(5) <60mm(<2.4 in) X <br /> GEI Consultants,Inc. 29 of 122 Appendix C 2 <br /> November 2020 <br />