PROJECT: BORING ID:
ERDC Site Wide Monitoring Plan (13 002-04) KV-84N-S
LOCATION: WELL ID:
Keno Hills Silver District (KHSD) Fire Hall Shallow
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 67.6656 57.946
LOGGED BY: SAMPLING METHOD: DATE STARTED: DATE COMPLETED:
LF Interval by major lithology 2-Nov-13 4-Nov-13
Graphic 
Description Well Construction
Log
Depth (m)
-2 -2
Locking Casing 
Sand Pack
0 0
Cap
Bentonite
2 2
Brown silty gravel
Grout
4 4
Brown silty gravelly sand with pieces of sericite schist
6 6
Gray-brown gravelly silt with some sand, some boulders
8 8
Brown silty sand, becoming more gray near the end of the 
10 10
interval
12 12
Gray sandy silt
14 Dark gray brown clayey silt
14
Medium gray brown gravel with silt and fines, 70% gravel 
16 16
sized pieces
18 18
Light yellow brown silty gravel
Dark gray silt with trace fine sand
20 20
Dark gray brown broken gravel with damp silt
22 22
gray brown gravel with silt and sand, dry
24 24
Casing
26 26
Grout
28 28
Coarse gravelly sand, saturated with groundwater cleared 
30 30
from hole at end of interval
32 32
Gray brown silty sand, wet
34 34
Clayey silt, moist
36 36
Sandy silt, moist
38 38
Gray brown gravelly silt
40 40
Coarse silty gravel
42 42
Gray silty gravel, dry, becoming more sand and silt rich from 
44 44
147' to 150'
46 46
Sandy gravel with trace silt
Light gray sandy gravel with cobbles, alternating dry and 
48 48
damp
50 50
PVC Riser
Gravel with boulders and cobbles, some sand and trace silt,  Bentonite
52 alternating colr from light gray/yellow to dark gray brown 52
Clean coarse gravel with almost no fines
54 54
Gravelly sand with cobbles, dry
56 Yellowish brown sandy gravel with silt, a lighter gray color  56
interval aroudn 185', water coming in 189'-190'
58 58
Clean gravel with occasional seems of orangy pink gravel
Sand Pack 60 60
Gray brown gravel with trace fines, coarse pea gravel size PVC Screen
62 62
Dark gray brown silty gravel with sand, wet
64 Dark brown gravel and cobbles, wet 64
Yellowish brown silty gravel
66 66
Coarse sand and fine gravel, wet
68 Becoming finer - silty gravel 68
Sand Pack
Gray silty clay with gravel
70 70
72 72
Bedrock Borehole Diameter: 6" 
NOTES: Stuck casing, melted PVC and redrilled
QZ17-076 - YWB - January 29, 2018 Overburden Borehole Diameter: 7 3/8"
Surface Seal Borehole Diameter: 10"