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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 6850,Section A,0+00-1+30 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> ------------------------------------------------------------------------- <br /> Set 1(Primary 1) ---------------------------------------------- 102 ----------------57-----------------ESE-------------90------------115---------45----------75- <br /> Set 1(Primary 1-- -------------- ---- <br /> Set 2(Primary 2)----------------------------------------------- 348------------------------------78---------------NNW-----------325-----------370---------60----------85----- <br /> Set 2(Primary 2- <br /> Set 3(Secondary 1) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 4(Secondary 2) <br /> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> ,Set 5(Foliation) 256 16 WSW 130 340 5 25 <br /> Estimated Strength of Intact Rock Material: <br /> Designation: Compressive Strength Range Estimated in Field <br /> Very High(15) >250 Mpa(>36,260 psi) X <br /> ------------------------------------------------------------------------------------------------------------------- <br /> High(12)-------------------------------------100-250 Mpa(14,500-36,260 psi)--------------X <br /> ----------- ----------------------------- ------------ <br /> M-edium High(7) ----------------------------50_100 Mpa(7,250-14,500 psi) <br /> -- ----------------- -------------------------------------------------------- <br /> Moderate(4) 25-50 Mpa(3,625-7,250 psi) <br /> ------------------------------------------------------------------------------------------------------------------- <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 /> Good Quality(17) 75-90% X <br /> ------------------------------------------------------------------------------------------------------------------- <br /> Fair Quality(13) -----------------------------50-75% -------------------X <br /> Poor Quality(8) <br /> ------------------- ------------------------- ------------ <br /> 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 /> Very Wide(20) ------------------------------>2m(>6.5 ft) <br /> Wide(15)-------------------------------------0.6-2 m(2-6.5 ft) <br /> Moderate(10)-------------------------------200 600 mm(8-24 in)-----------------------------------------------X--------------------------------------------X------ <br /> Close(8)--------------------------------------60-200 mm(2.4-8 in) ------X-------------------X------------------------------------------- X <br /> ---------- ------------------------------------ ----- <br /> Very Close(5) <60mm(<2.4 in) X <br /> GEI Consultants, Inc. 37 of 122 Appendix C.2 <br /> November 2020 <br />