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 6850,Section A.0+00-2+00 Strike and Dip Orientations: Average Strike Average Dip Direction Strike from Strike to Dip from Dip to Set 1(Primary 1) 173-----------------------------87------------------5-------------170----------- --- ---------85---------- -- Set 1------a ry 1--- ----------------------------------------------173 ---- Set2(Primary 2)-----------------------------------------------100-----------------------------87------------------E--------------90------------ --- ---------8----------- -- Set 2(-----a ry 2- ---- Set 3(Secondary 1) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Set4(Secondary 2) --------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------- Set 5(Foliation) 238 20 WSW 145 330 10 30 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)- ---------------- ---------------------------------------------------------------------------------------------------------- Low(2)----------------------------------------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`Yo -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Good Quality(17) 75-90% -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Fair Quality(13) 50-75% X Poor Quality(8) 25-50/o X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 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)------------------------------------- -----2 m(2_6.5 ft)------------------------------------------------------------------------------------------------X------------------ Moderate(10)-------------------------------200-600 mm(8-24 in)--------------------------X ---X ----- X ----------------- ---------------- -------------------------------------- ------------------ Close(8)--------------------------------------60_200 mm(2.4-8 in) ---------- ----------------------------------------------------------------------------------------------------------------------------------- Very Close(5) <60mm(<2.4 in) GEI Consultants, Inc 75 of 122 Appendix C.2 November 2020