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 6600,Section A.0+00-2+40 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set1(Primary 1)----------------------------------------------- 234-----------------------------�� --SW------------220----------- --- ---------55---------- -- Set 1------ary 1) --------------- ----- Set2(Primary 2)----------------------------------------------- 343-----------------------------88---------------NNW-----------330----------- --- ---------85---------- -- Set 2------(Primary 2- ---- Set 3(Secondary 1)---------------------------------------------60 45-----------------ENE-------------60-------------60----------45----------45---- ---------------------- --------------------------------- Set4(Secondary 2) --------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------- Set 5(Foliation) 245 24 WSW 200 330 5 50 Estimated Strength of Intact Rock Material: Designation: Compressive Strength Range Estimated in Field Very High(15)------------------------------->250 Mpa(>36,260 psi) Very High 15) --------------------------------------- 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) ------------------------------------------------------------------------------------------------------------------- Low(2)----------------------------------------525 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% -------X- --------------------- ------------------------------------- ----------- Fa-ir Quality(13) -----------------------------50-75%-------------------------------------------X -- ---------------- ------------ Poor Quality(8) 25-50% ------------------------------------------------------------------------------------------------------------------- Very Poor Quality(3) <25% 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)------------------------------X-----------------------------------------------------------------X----- Moderate(10)-------------------------------200-600 mm-(8--24 in)--------------------------X-------------------X------------------------------------------- X Close(8)--------------------------------------60_200 mm(2.4-8 in) ------X-------------------X ---------- ------------------------------------ --------------------------------------------------- Very Close(5) <60mm(<2.4 in) GEI Consultants, Inc 51 of 122 Appendix C.2 November 2020