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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 A.0+00-0+25(corner)-0+62 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set1(Primary l)------------------------------------------------34-----------------------------74-----------------------------------------------NE 20 5-----------6-----------90---- <br /> Set 1------(Primary 1- <br /> 70 <br /> Set 2(Primary 2)----------------------------------------------- 103------------------------------61-----------------ESE-------------90------------ --- 50------------ ---- <br /> Set 2(Primary 2) ------------ <br /> Set3(Secondary 1) ------------------------------------------------------------------------------------------------------ <br /> -------------------------------------------------------------------------------------- <br /> Set 4(Secondary 2) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 5(Foliation) 196 7 SSW 270 40 5 10 <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(?)----------------------------------------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% <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Fair Quality(13) -----------------------------50-75% -------------------X <br /> ------------------- ------------------------- ------------------------------------------------------------------------------------- <br /> Poor Quality(8)------------------------------25_50% ------X <br /> ------------------ ------------------------------------- ------------------------------------------------------------------------------------- <br /> Very Poor Quality(3) <25% X <br /> Spacing of Discontinuities <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> VeryVery Wide(20) ------------------------------>2m(>6.5 ft) <br /> ------------ -------------------------------------------------------------------------------------------------------------------------------- <br /> Wide(15) 0.6-2 m(2-6.5 ft) X <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Moderate(10)-------------------------------200-600 mm(8-24 in)--------------------------X-------------------X------------------------------------------- X <br /> ----------------- ----------------- ------------------ <br /> Close(8)--------------------------------------60_200 mm(2_4_8 in) X---------------------------X---------------------------------------------------------------- <br /> ------- - - - ------ ------------------ <br /> Very Close(5) <60mm(<2.4 in) <br /> GEI Consultants, Inc. 25 of 122 Appendix C 2 <br /> November 2020 <br />