2023-10-31_REVISION - M1973021 ‎(19)‎

• Permit No: M1973021
• IBM Index Class Name: Revision
• Doc Date: 10/31/2023
• Doc Name Note: Attachment A - Rule 6.5 Geotech Stability Exhibit - App A Subsurface Expl Findings 2 of 7
• Doc Name: Request for Technical Revision
• From: Holcim - WCR, Inc.
• To: DRMS
• Type & Sequence: TR9
• Media Type: D
• Archive: No

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, PROJECT: Morrison South Quarry LOG OF BORING 2008 PI3-3
Exploration Phase 3
GE1 Consultants
PROJECT NO. 072850 SHEET 6 OF 8
Location South quarry Date(s) 6/10/2008 - 6/26/2008 Drilling Bearing
Precision Sampling N 1654341.616 E 3082119.455 Drilled Contractor p g (Azimuth) -
Ground Surface 7041.78 NAVD88 Logged K.Ainslie Drill Rig Boart Lon ear DB Plunge 90
Elevation(ft) by Type gY (Degrees)
540
Borehole Fluid Depth(ft) NA Reviewed K.Ainslie/J.Wri ht Core HQ Total 300.0
and(Date Measured) by g Diameter(in) Depth(ft)
CORING (SEE LEGEND)
n n° rn
= MATERIAL CO
oco
m DESCRIPTION
U N i O U)
O � Iq a) N E E . 0_' O tl5 C C J > a)
LLl Z N 0_' 0_ O a) N d O O �O .�.
N O 3 CL a) a) — O 0 O N
0 Z 0 IL J 0 Z J 2 0- of rL 0 0 0
200
Box 41 5 4.9 - - - - NA 98 NA � 199.5-201.0':Heavy biotite content
Box 201.0-203.0':BIOTITE GNEISS. Weathered,weaker rock;intensely
22 / fractured;talcy.
42 5 4.7 NA 94 NA / 203.0-224.4':BIOTITE GNEISS. Gray;slightly to moderately
/ weathered;slightly to moderately fractured.
205 204.5':30°fracture,talcy.
205.6-2057:Weathered,soft zone;weak,micaceous,clayey.
206.0-213.5':Higher quartz content;hard to very hard.
206.6-207.5':70°fracture,thin white mineral infill,healed but
/ partially broken.
43 5 4.9 - - - - NA 98 NA
/
210 Box
210.0':40°fracture,clean,slightly rough.
22
Box /
23 / 211.7-211.8':Weathered,soft zone;weak,micaceous.
44 5 4.9 NA 98 NA
212.7-213.1':60-80°,closely spaced,healed fractures.
- - - - /
215
/
/
Box 45 5 5 - - - - NA 100 NA
23 /
220 BOX 219.5-219.8':60-80°fractures,talcy,truncated by 20°fracture.
24 /rOk220.0-221.0':Red veinlets present.
II
221.4-221.9':70°,smooth,slightly talcy and slickensided.
II
222.4-2227:Higher mica content,slightly weaker rock.
/
46 5 4.8 - - - NA 96 NA /
II
225 224.4-231.2':PEGMATITE. Pink;coarse grained;predominantly
:. quartz,feldpar and biotite minerals;hard;intensely fractured,30-80°,
closely spaced,occasional slightly talcy surfaces.
II
Box o
m
24 47 5 5 NA 100 NA N
Box 0 Q
25
230 229.3-2297:Very intensely fractured,rubble.
II
231.2-255.4':BIOTITE GNEISS. Dark gray;slightly to moderately
weathered;hard;intensely fractured to slightly to moderately fractured;
/ occasional quartz veins.
48 5 5 NA 100 NA
II
235 /
II
II
Box / 236.3-236.8':80°fracture,slightly talcy.
25 /
Box 49 5 4.9 NA 98 NA 237.6':Orange,clayey fracture surface,then 80°white and talcy to
26 / 238.0'.
/ 238.0-239.0':Foliation aligned fractures,—10°,moderately spaced,
240 clean.