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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 E.5+40-6+75 <br /> Strike and Dip Orientations: <br /> Average Strike Average Dip Direction Strike from Strike to Dip from Dip to <br /> Set 1(Primary 1)----------------------------------------------- 242 ------81---------------WSW-----------210-----------260---------55 ------90 <br /> Set 2(Primary 2- ----------------------- ---- ---- <br /> Set 2(Primary 2)----------------------------------------------- 175------------------------------76 -----5-------------160-----------190---------70 90 <br /> ------------------- ------------- ------------------ <br /> Set 3(Secondary l)-------------------------------------------- 100 58---------------- ESE-------------80------------120 45----------70 <br /> - - - --------------------------------- ------------ ----- <br /> Set4(Secondary 2) --------------------------------------------------------------------------------------------- <br /> ----------------------------------------------------------------------------------------------- <br /> Set 5(Foliation) 326 17 NW 290 350 10 30 <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 /> 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 ?- <br /> -------------------------------------- 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 /> G <br /> ------------------------------------------------------------------------------------------------------------------- <br /> ood 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 Ti)(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) X <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---------------------------X <br /> Very Close(5) <60mm(<2.4 in) <br /> GEI Consultants, Inc. 33 of 122 Appendix C.2 <br /> November 2020 <br />