2023-10-31_REVISION - M1973021 ‎(24)‎

• 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 1 of 7
• Doc Name: Request for Technical Revision
• From: Holcim - WCR, Inc.
• To: DRMS
• Type & Sequence: TR9
• Media Type: D
• Archive: No

0 , PROJECT: Morrison South Quarry LOG OF BORING 2007 PH2-2
Exploration Phase 2
GE1 Consultants
PROJECT NO. 072850 SHEET 2 OF 13
Location South quarry Date(s) Drilling Bearing
N 1653741.068 E 3082997.354 Drilled 10/29/2007 - 11/9/2007 Contractor Spectrum Exploration (Azimuth) 315
Ground Surface 6771.19 NAVD88 ear Logged K.Ainslie Drill Rig Boart Lon DB Plunge 70
Elevation(ft) by Type 9y (Degrees)
Borehole Fluid Depth(ft) NA Reviewed K.Ainslie/J.Wri ht Core NQ Total 500.0
and(Date Measured) by 9 Diameter(in) Depth(ft)
CORING (SEE LEGEND)
n n° rn
= MATERIAL V; 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 a) a) — O 0 O N
0 Z 0 0 d J 0 Z J = 0 of rL 0 0 0
40 40.0-47.5':GRANITIC GNEISS. Gray to bluish-gray;moderately
weathered;slightly to moderately fractured,staining extends from
fracture surfaces;occasional quartz/pegmatite veins(42.5',46.9',47.2').
9 5 5+ NA NA
- I
_ o
N
45 m
= Q
J
BOX
4 10 5 5 - - - NA 100 NA
Box 47.5-48.5':GRANITIC GNEISS. As above;more red staining.
5
48.5-50.0':GRANITIC GNEISS. Weaker,softer fractured rock.
- I
50
50.0-537:Pegmatite. Pink;quartz rich with biotite nodules;fractured
with weathered fracture surfaces.
11 5 5 NA 100 NA
" 53.7-56.8':GRANITIC GNEISS. Grayish with pink and red veining;
55 hard;intensely fractured with soft,weathered fracture surfaces.
Box
5
Box 12 5 5 - - - - NA 100 NA 56.8-57.0':Broken rock.
6 57.0-60.0':Light gray with pink veining;fractured;talcy.
58.1-58.3':Broken rock.
60 59.3':0.1'Quartz vein;pink.
59.4-60.0':Friable;soft;micaceous.
_ 60.0-62.5':GRANITIC GNEISS. Gray with pink and red veining;
slightly weathered;hard;moderately fractured.
61.3':Quartz vein;pink.
13 5 5 NA 100 NA 62.2-62.5':White,quartz-rich lease.
62.5-64.8':GRANITIC GNEISS. Grayish to white with occasional red
veining;moderately weathered;softer;talcy surfaces.
65 =Box 64.8-65.0':Broken rock(from extruding from core barrel tip);soft;
_
6 talcy.
Box 65.0-677:GRANITIC GNEISS. Interbedded gray/white and light
7 pink;moderately hard;fracture surfaces slightly talcy.
14 5 4 - - - NA 80 NA
67.7-76.2':GRANITIC GNEISS. Predominantly very intensely
fractured,weak rock;quartz veins;micaceous lenses,core is weakened,
fractured in these areas.
70 J.
_ I
= I
15 5 2.8 - - - NA 56 NA
- I
_ o
75 Oo
= o
76.2':Decomposed rock;soft.
16 5 5 NA 100 NA 76.2-78.3":Predominantly white quartz;talcy fracture surfaces;
increase in red veinlets with depth.
Box
7 78.3-90.0':GRANITIC GNEISS. Gray;hard;occasional quartz veins
Box and red veins.
80