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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 6600,Section B,2+40-3+75 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set1(Primary 1)----------------------------------------------- 242-----------------------------75---------------WSW-----------185----------- --- ---------6----------- -- <br /> Set 1------(Primary 1- ---- <br /> Set2(Primary 2)-------------------------------------------------7-7-----------------------------82----------------ENE-------------60-------------90----------75----------90---- <br /> Set 3(Secondary 1) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 4(Secondary 2) <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Set 5(Foliation) 281 29 W 265 310 20 40 <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 725-3,625psi) <br /> ------------------------------------------------------------------------------------------------------------------- <br /> Very Low(1) 1-5 Mpa(145-725 psi) <br /> Estimated Drill Core Quality(RQD) <br /> Designation: ROD 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% <br /> Spacing of Discontinuities <br /> Set 1 Set 2 Set 3 Set 4 Set 5 <br /> Very Wide(20) ------------------------------->-2m(>6.5 ft) <br /> ------------------ --------------------------------------------------------------------------------------------------------------- <br /> Wide(15)--------------------------------------0.6_2 m(2_6.5 ft)---------- <br /> Moderate(10)-------------------------------200-600 mm(8-24 in)--------------------------X----------------------------------------------------------------X <br /> ----------------- ----------------- ----- <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. 53 of 122 Appendix C.2 <br /> November 2020 <br />