PROJECT: WELL ID:
ERDC Site Wide Monitoring Plan (13 002-04) KV-84N-D
LOCATION: WELL MATERIAL:
Keno Hills Silver District (KHSD) Fire Hall Deep
DRILLING CONTRACTOR: NORTHING: EASTING:
Access Consulting Group
DRILLING EQUIPMENT: GROUND SURFACE ELEV. (masl): TOC ELEVATION (m ags):
Midnight Sun Drilling Inc. 0.8634984
TOTAL DEPTH (m): DRILLING METHOD: WATER DEPTH (m bgs):
Air Rotary 88.392 57.068
LOGGED BY: SAMPLING METHOD: DATE STARTED: DATE COMPLETED:
EA Interval by major lithology 30-Oct-13 1-Nov-13
Graphic 
Description Well Construction
Log
Depth (m)
-2 -2
0 Sand Pack
0 Locking Casing 
Brown silty gravel with cobbles, damp
Cap
Bentonite
2 2
Gray/brown gravelly silt with sand and cobbles, damp
4 4
Boulder - quartzite, damp
6 Gray/brown gravelly silt with sand and cobbles, damp 6
Gray/brown gravelly silt with sand, damp
8 8
Dark gray sand with trace silt, grading to silt at 37', damp
10 10
12 Silt, coarse, trace sand, damp 12
Gravel with trace silt 1"- but becoming finer (1/4"), clean 
14 14
subrounded (fluvial) grains, damp
16 16
Sandy gravel, light gray, damp
18 18
Brown fine sand/coarse silt, damp
20 20
Wet gray  silt, wet
22
22 Sandy gravel, medium gray, damp
24 Fine gravel with trace sand and silt, clean, damp 24
Sandy gray/brown gravel (1"-), alternating dry and moist, gray 
26 26
and brown
28 28
Coarse sand with trace gravel, saturated - 20L water blown 
30 30
from hole after rod change
32 32
34 34
Gray sandy silt, wet
Casing
36 36
Grout
38 38
Silty gravel, damp
40 40
Clean gravel with cobbles, wet - appears to be water at 137 
42
42 feet after water addition stopped
44 Medium sand with trace silt, moist but no water 44
Sand and gravel with silt, moist
46 46
Gray gravel with some coarse sand, damp
48 48
Light gray powderly silt with trace gravel and fine sand, 
50 50
alternating bands drier and moister with more or less 
52 52
gravel/cobbles
54
54 Gray sandy gravel with cobbles. Powdery and dry with 
56 several boulders encountered to 180, water present at 193' 56
58 58
60 60
62 62
Silty gravel, saturated, increased fines , wet
64 Clean gravel with cobbles and boulders, trace sand and silt,  64
wet
66 66
68 68
Gray silty clay till with gravel, impermeable? More gravel 
70 between 225-232, added water 70
Bentonite
72 Gray quartzite 72 PVC Riser
74 74
Sand Pack
Interbedded black graphite schist and quartzite, some quartz 
76
76 and pyrite
Bentonite
78 Gray/green muscovite/sericite schist 78
Light gray hard quartzite, oxidized zone between 262'-267' 
80 PVC Screen
80
with groundwater, pyrite in cuttings
Sand Pack
82 82
84 84
Quartzite with thin bedded graphite schist - EOH
86 86
Sand Pack 88 PVC End Cap
88
90 90
Bedrock Borehole Diameter: 6" 
NOTES: Stuck casing near top of bedrock at 234 feet
QZ17-076 - YWB - January 29, 2018 Overburden Borehole Diameter: 7 3/8"
Surface Seal Borehole Diameter: 10"