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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 B,1+30-3+75 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set1(Primary 1)----------------------------------------------- 114 -------------------------87-----------------ESE------------325----------- --- ---------6-----------85- <br /> Set 1(Primary 1) ---- ---- <br /> 90 <br /> Set 2(Primary 2)----------------------------------------------- 309-----------------------------80----------------NW--------------------------- --- ---------45----------75- <br /> Set 2(Primary 2- ---- <br /> Set 3(Secondary 1) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 4(Secondary 2) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 5(Foliation) 206 21 SSW 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) <br /> ----------------- --------------------------------------- <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 /> Good Quality(17) ---------------------------75_90%-------------------------------------------X <br /> --------------------- ------------ <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 /> 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 /> Very Close(5) <60mm(<2.4 in) X <br /> GEI Consultants, Inc 39 of 122 Appendix C 2 <br /> November 2020 <br />