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. Discontinuity Persistence Set 1 Set 2 Set 3 Set 4 Set 5 --------------------------------------------------------------------------------------------------- --------------- ----------- --------- - - Very Low(6)---------------------------------<1m(<3 3 ft) ------------------------------------Notes:-- --------------- ---------------------------------------------------------------------------------- Low(4) 1-3m(3.3-9.9ft) X X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Medium(2) 3-10 m(9.9-33 ft) X X -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- High(1)---------------------------------------10_20 m(33 66_ft)-----------------------------------------------------------------------------------------------X------------------ Very High(0) >20 m(>66 ft) X Discontinuity Separation(Aperture) Set 1 Set 2 Set 3 Set 4 Set 5 Very Tight Joints(6)-------------------------<0.1 mm(<0.003 in) ----------------------X-------------X----------- X ----------------------- ------------------------------------------------------------- ------------------ Tight Joints(5)-------------------------------0.1-_0_5 mm(0.003-0.02 in) ----------------------X-------------X----------- X ----------------- ----------------------------------------------------------- ------------------ M-oderately Open Joints(4) ----------------0.5-_2_5-mm(0.02-0.1 in) -- ----------------------------- --------------------------------------------------------------------------------------------------------------------------------- Open Joints(1) ------------------------------2.5-_10 mm(0.1-0.4 in) ------------------ ----------------------------------------------------------------------------------------------------------------------------------- Very Wide Aperture(0) >10 mm(>0.4 in) Discontinuity Roughness Set 1 Set 2 Set 3 Set 4 Set 5 VeryRough Surfaces(6) --------------------�R --------------------------------------------------------------------------------------------------Notes:-- Very Rough Surfaces ---------------------------- Rough Surfaces(5)--------------------------R ---------------------------------------XY X X ---------------------- -------------------------------------------------- ----------------------------------------------- Slightly Rough Surfaces(3) -----------------SR ---------------------------------------X-------------X----------- x --g-- -------- - ---------- - ------------------------------------------------ ------------------ Smooth Surfaces(1) SM -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Slickensided Surfaces(0) SL Discontinuity Wall Face Weathering Set 1 Set 2 Set 3 Set 4 Set 5 Unweathered(6) UW -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SlightlyWeathered(5)----------------------SW--------------------------------------------------------------------------------------X X X -------------------------- ----------------------------------------------- Moderately Weathered(3) MW ---- --------------------------------------------- ------------------------------------------------------------------------------------------------------------------------------------------- Highly Weathered(1) HW -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Completely Weathered(0) CW -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Residual Soil(0) RS RMR Classification: 34-Poor to 55-Fair Additional Notes: trending 10 deg; highly variable joint sets throughout section, mafic dipping 60 deg at 9+80;9+80 to corner at 11+00 unmappable due to rubble,trend 100 deg, 11+00 to 12+50 unmappable due to rubble;trend 160 deg; 12+50 to 13+30 unmappable due to rubble. No groundwater inflow observed.Some iron oxide staining on some Set 3 and Set 4 joint surfaces. GO Consultants,Inc 20 of 122 Appendix C.2 November 2020