2020-11-05_REVISION - M1973021 (16)

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Morrison Quarry AM-07 Geotechnical Stability Exhibit DRMS Permit M-1973-021 Aggregate Industries WCR Inc South Quarry Morrison Quarry,Bench 7000,Section A.0+00 to 0+80 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set1(Primary 1)----------------------------------------------- 345-----------------------------83--------------- NNW-----------340 35- ---------80---------- -- Set1------ary 1) ---------------- ---- Set 2(Primary 2) 80 ------------82------------------E---------------7-0-------------90----------80----------85 ---- ---------------------------------------------------------------------------------------- Set 3(Secondary 1) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 4(Secondary 2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set 5(Foliation) 345 48 NNW 340 350 35 60 Estimated Strength of Intact Rock Material: Designation: Compressive Strength Range Estimated in Field Very High(15)------------------------------->250 Mpa(>36_260 psi) ----------------- ---------------------------------------------------------------------------------------------------------------- High(12) 100-250 Mpa(14,500-36,260 psi) X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Medium High(7) 50-100 Mpa(7,250-14,500 psi) X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Moderate(4) --------------------------------25_50 Mpa(3,625 7,250 psi)- ---------------- ---------------------------------------------------------------------------------------------------------- LowLow(?)----------------------------------------5 25 Mpa(725 3,625 psi)---------------- - - ---- ---------------------------------------------------------------------------------------------- Very Low(1) 1-5 Mpa(145-725 psi) Estimated Drill Core Quality(RQD) Designation: RQD Percentage Range Estimated in Field Excellent Quality(20) 90-100% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Good Quality(17) 75-90% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Fair Quality(13) 50-75% X Poor Quality(8)------------------------------25_50/o ------X _________________________ ------------------ ------------------------------------- -------------------------------------------------- Very Poor Quality(3) <25% X Spacing of Discontinuities Set 1 Set 2 Set 3 Set 4 Set 5 Very Wide(20) ------------------------------>2m(>6.5 ft) ------------------ ---------------------------------------------------------------------------------------------------------------------------- Wide(15)--------------------------------------0.6_2 m(2_6.5 ft) -------------------------------------------------------------------------------------------------------------- Moderate(10)-------------------------------200-600 mm(8-24 in) -------------------X --X------------------------------------------- X ----------------- ------------------------ ----------------- ------------------ Close(8)--------------------------------------60_200 mm(2.4-8 in) ------X ---X------------------------------------------- x ---------- ------------------------------------ ---------------- ------------------ Very Close(5) <60mm(<2.4 in) GEI Consultants, Inc 21 of 122 Appendix C.2 November 2020