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Morrison Quarry AM-07 Geotechnical Stability Exhibit <br /> DRMS Permit M-1973-021 <br /> Aggregate Industries WCR Inc. <br /> Discontinuity Persistence <br /> Set 1 Set 2 Set 3 Set 4 Set 5 Notes: <br /> Very Low(6)---------------------------------<1m(<3 3 ft) <br /> --------------- -------------------------------------------------------------------------------------------------------------------------------- <br /> Low(4)----------------------------------------1_3 m(3_3_9 9 ft)--------------------------------------------------------------------------------------------------------------------- <br /> - - - - - -- - -- <br /> Medium(2) 3--10 m(9.9-33 ft) X X <br /> -------------------------------------------------- ----------------------------------------------------------------------------------------------------------------------------------------- <br /> High(1)---------------------------------------10_20 m(33_66 ft)--------------------------------------------------X <br /> - - - - - ---------------------------------------------------------------- <br /> Very High(0) >20 m(>66 ft) X <br /> Discontinuity Separation(Aperture) <br /> Set 1 Set 2 Set 3 Set 4 Set 5 Notes: <br /> Very Tight Joints(6)-------------------------<0.1 mm(<0.003 in) <br /> ----------------------------------------------------- <br /> ----------------------- ------------------------------------------------------------------------------- <br /> Tight Joints(5)-------------------------------0.1-_0_5 mm(0.003-0.02 in) <br /> ----------------- ---------------------------------------------------------------------------------------------------------------------------------- <br /> Moderately Open Joints(4) ----------------0.5-_2_5 mm(0.02-0.1 in)----------------------X-------------------X---------------X--------------------------X <br /> -------------------------------- --------------------- ------------------ <br /> Open Joints(1) ------------------------------2 5-_10 mm(0.1-0.4 in) X-------------------X---------------X -----------X------------------ <br /> ------------------ ---------------------------------------------- --------------- <br /> Very Wide Aperture(0) >10 mm(>0.4 in) <br /> Discontinuity Roughness <br /> Set 1 Set 2 Set 3 Set 4 Set 5 Notes: <br /> Very Rough Surfaces(6) VR <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Rouh Surfaces 5 --------------------------R---------------------------------------------------X-------------------X <br /> Slightly Rough Surfaces(3) SR-------------------------------------------------X- X--------------- <br /> X--------------------------X------------------ <br /> Smooth Surfaces(1) SM <br /> --------- - - - --------------------------------------------- -----------------------------------X--------------------------X <br /> - - - - - - ---------------------------------------------------- ------------------ <br /> Slickensided Surfaces(0) SL <br /> Discontinuity Wall Face Weathering <br /> Set 1 Set 2 Set 3 Set 4 Set 5 Notes: <br /> Unweathered(6) UW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Slightly Weathered(5) SW ----------------------------------X-------------------X_ X X <br /> -------------------------- --------------- --------------------------------------------------------------- <br /> ModeratelyWeathered(3)-----------------MW-----------------------------------------------X-------------------X---------------X--------------------------X <br /> ------------------------------- ------------------ <br /> Highly Weathered(1) HW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Completely Weathered(0) CW <br /> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- <br /> Residual Soil(0) RS <br /> RMR Classification: 25(Poor) to 55(Fair) <br /> Additional Notes: Upper right has silimanitic schist at Sta.18+35 in the corner of the highwall <br /> Groundwater conditions <br /> Discontinuity filling,staining <br /> GEI Consultants, Inc. 60 of 122 Appendix C.2 <br /> November 2020 <br />