DERR-2024-008611

Appendix E
Geologic and Hydrogeologic Supporting
Information
Groundwater Depth (feet bgs): 215
Total Depth (feet bgs): 230
Borehole Diameter (inches):8
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
Sheet: 1 of 5
18.0' Cored through cobble.
38.0'‐41.0' Clay: brown, slightly moist, medium stiff, low 
plasticity, moderately cohesive.
0.3'‐38.0' Clay: sandy, gravelly, brown, slightly moist (becomes 
dry with depth), soft to medium stiff, low plasticity, moderately 
cohesive, >30% coarse content, contains cobbles (round to sub‐
round, metamorphic and igneous in origin).
4744
‐111.83918○*
40.755969○*
September 25, 2016
September 23, 2016
EPA‐MW‐05R
Well Design
Co
n
c
r
e
t
e
 Pa
d
12
 In
c
h
 St
e
e
l
 Ma
n
h
o
l
e
Lo
c
k
i
n
g
 We
l
l
 Pl
u
g
El
e
v
a
t
i
o
n

(f
e
e
t
)
Well Installed
4514
4529
Sc
h
e
d
u
l
e
 80
 ‐

4 In
c
h
 PV
C
 Ri
s
e
r
Tr
e
m
i
e
 Pi
p
e
 Pl
a
c
e
d
 Be
n
t
o
n
i
t
e
 Gr
o
u
t
SP
CL
41.0'‐53.0' Sand: cobbly, light brown, dry, loose, coarse grained, 
sub‐round to sub‐angular, poorly sorted, >30% fine content.
47.0'‐53.0' Significant cobbles. No core samples.
4709
4704
4699
4694
35
40
45
50
Notes:
4739
4734
4729
4724
4719
4714
5
10
15
20
25
30
*=pending survey; elevations are feet above mean sea level; bgs = below ground surface; USCS=Unified Soil Classification System; PVC=polyvinyl chloride
Hand dug to avoid 
near surface 
utilities.
Core: 
01
Ph
o
t
o
:
 13
9
8
Ph
o
t
o
:
 13
9
9
Ph
o
t
o
:
 14
0
0
Ph
o
t
o
:
 14
0
1
Ph
o
t
o
:
 14
0
2
0.0'‐0.3' Asphalt
Sa
m
p
l
e
 ID

(B
l
o
w
 Co
u
n
t
s
)
Geologist:
Drilling Method:
Roy Weindorf
Cascade Drilling
Sonic
US
C
S
Lithologic Description
Soil Group Name: modifier, color, moisture, density/consistency, grain size, other 
descriptors
Rock Description: modifier, color, hardness/degree of concentration, bedding 
and joint characteristics, solutions, void conditions.De
p
t
h
 (f
e
e
t
)
Sa
m
p
l
e
 Ty
p
e
Gr
a
p
h
i
c
 Lo
g
Or
g
a
n
i
c
 Va
p
o
r

Le
v
e
l
s
 (p
p
m
)
Borehole Completion:
Total Depth Elevation:
United States Environmental Protection Agency
TDD: 0008/1410‐07 EPA‐ MW‐05 Replacement
700 South 1600 East PCE Plume WO#: 20408.012.008.0189.00
500 Foothills Dr. Building 16 Salt Lake City, Utah
Groundwater Elevation:
Drilling Contractor:
1435 Garrison Street, Suite 100
Lakewood, Colorado 80215 Elevation:
Longitude:
Latitude:
End Date:
Start Date:
Boring ID:
<1
<1
<1
<1
<1
<1
<1
<1
<1
Core: 
02
Core: 
03
Core: 
04
Core: 
05
Core: 
06
Core: 
07
Core: 
08
Core: 
09
Core: 
10
Core: 
11
Core: 
12
Core: 
13
Core: 
14
Groundwater Depth (feet bgs): 215
Total Depth (feet bgs): 230
Borehole Diameter (inches):8
4744
‐111.83918○*
40.755969○*
September 25, 2016
September 23, 2016
EPA‐MW‐05R
Well Design
El
e
v
a
t
i
o
n

(f
e
e
t
)
Well Installed
4514
4529
Sa
m
p
l
e
 ID

(B
l
o
w
 Co
u
n
t
s
)
Geologist:
Drilling Method:
Roy Weindorf
Cascade Drilling
Sonic
US
C
S
Lithologic Description
Soil Group Name: modifier, color, moisture, density/consistency, grain size, other 
descriptors
Rock Description: modifier, color, hardness/degree of concentration, bedding 
and joint characteristics, solutions, void conditions.De
p
t
h
 (f
e
e
t
)
Sa
m
p
l
e
 Ty
p
e
Gr
a
p
h
i
c
 Lo
g
Or
g
a
n
i
c
 Va
p
o
r

Le
v
e
l
s
 (p
p
m
)
Borehole Completion:
Total Depth Elevation:
United States Environmental Protection Agency
TDD: 0008/1410‐07 EPA‐ MW‐05 Replacement
700 South 1600 East PCE Plume WO#: 20408.012.008.0189.00
500 Foothills Dr. Building 16 Salt Lake City, Utah
Groundwater Elevation:
Drilling Contractor:
1435 Garrison Street, Suite 100
Lakewood, Colorado 80215 Elevation:
Longitude:
Latitude:
End Date:
Start Date:
Boring ID:
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
Sheet: 2 of 5
<Sand Continued>
85.0'‐87.0' No cuttings returned.
<Clay Continued>
91.0' Becomes dry and firm.
*=pending survey; elevations are feet above mean sea level; bgs = below ground surface; USCS=Unified Soil Classification System; PVC=polyvinyl chloride
4654
4669
4684
Sc
h
e
d
u
l
e
 80
 ‐

4 In
c
h
 PV
C
 Ri
s
e
r
Tr
e
m
i
e
 Pi
p
e
 Pl
a
c
e
d
 Be
n
t
o
n
i
t
e
 Gr
o
u
t
CL
CL
SP
53.0'‐195.0' Clay: sandy, gravelly, brown, slightly moist (becomes 
dry with depth), soft to medium stiff, low plasticity, moderately 
cohesive, >30% coarse content, contains cobbles (round to sub‐
round, metamorphic and igneous in origin).
4644Ph
o
t
o
:
 14
0
7
100
<1
95 4649
Ph
o
t
o
:
 14
0
6
90
85 4659
4674
80
75
Ph
o
t
o
:
 14
0
5
4664
70
Ph
o
t
o
:
 14
0
4
55 4689Ph
o
t
o
:
 14
0
2
Ph
o
t
o
:
 14
0
3
60
65 4679
Notes:
<1
<1
<1
<1
<1
<1
<1
<1
<1
Core: 
22
Core: 
23
Core: 
24
Core: 
25
Core: 
26
Core: 
27
Core: 
28
Core: 29
Core: 
15
Core: 
16
Core: 
17
Core: 
18
Core: 
19
Core: 
20
Core: 
21
Groundwater Depth (feet bgs): 215
Total Depth (feet bgs): 230
Borehole Diameter (inches):8
4744
‐111.83918○*
40.755969○*
September 25, 2016
September 23, 2016
EPA‐MW‐05R
Well Design
El
e
v
a
t
i
o
n

(f
e
e
t
)
Well Installed
4514
4529
Sa
m
p
l
e
 ID

(B
l
o
w
 Co
u
n
t
s
)
Geologist:
Drilling Method:
Roy Weindorf
Cascade Drilling
Sonic
US
C
S
Lithologic Description
Soil Group Name: modifier, color, moisture, density/consistency, grain size, other 
descriptors
Rock Description: modifier, color, hardness/degree of concentration, bedding 
and joint characteristics, solutions, void conditions.De
p
t
h
 (f
e
e
t
)
Sa
m
p
l
e
 Ty
p
e
Gr
a
p
h
i
c
 Lo
g
Or
g
a
n
i
c
 Va
p
o
r

Le
v
e
l
s
 (p
p
m
)
Borehole Completion:
Total Depth Elevation:
United States Environmental Protection Agency
TDD: 0008/1410‐07 EPA‐ MW‐05 Replacement
700 South 1600 East PCE Plume WO#: 20408.012.008.0189.00
500 Foothills Dr. Building 16 Salt Lake City, Utah
Groundwater Elevation:
Drilling Contractor:
1435 Garrison Street, Suite 100
Lakewood, Colorado 80215 Elevation:
Longitude:
Latitude:
End Date:
Start Date:
Boring ID:
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
Sheet: 3 of 5
<Clay Continued>
105.0'‐117.0' Minimal Cobbles <5%.
117.0' Increased cobble content >20%. Clasts are sedimentary 
(photo: 1410), igneous, and metamorphic in origin.
*=pending survey; elevations are feet above mean sea level; bgs = below ground surface; USCS=Unified Soil Classification System; PVC=polyvinyl chloride
4594
4609
4624
4639
Sc
h
e
d
u
l
e
 80
 ‐

4 In
c
h
 PV
C
 Ri
s
e
r
Tr
e
m
i
e
 Pi
p
e
 Pl
a
c
e
d
 Be
n
t
o
n
i
t
e
 Gr
o
u
t
CL
Notes:
150
145 4599
<1
<1 Core: 
47
Core: 
41
Core: 
42
Core: 
43
Ph
o
t
o
:
 14
1
2
4604
Core: 
46
Ph
o
t
o
:
 14
1
3
140
135
<1
<1
4614
<1
Core: 
39
<1
Core: 
36
Core: 
37
Core: 
38
Ph
o
t
o
:
 14
1
1
125
130
Core: 
40
115 4629
<1
<1 Core: 
35120
Core: 
31
Core: 
32
Core: 
33
Ph
o
t
o
:
 14
0
8
4634
Core: 
34
Ph
o
t
o
:
 14
0
9
4619
Core: 
28
Core: 
30 Ph
o
t
o
:
 14
0
7
110
105
<1
<1
Groundwater Depth (feet bgs): 215
Total Depth (feet bgs): 230
Borehole Diameter (inches):8
4744
‐111.83918○*
40.755969○*
September 25, 2016
September 23, 2016
EPA‐MW‐05R
Well Design
El
e
v
a
t
i
o
n

(f
e
e
t
)
Well Installed
4514
4529
Sa
m
p
l
e
 ID

(B
l
o
w
 Co
u
n
t
s
)
Geologist:
Drilling Method:
Roy Weindorf
Cascade Drilling
Sonic
US
C
S
Lithologic Description
Soil Group Name: modifier, color, moisture, density/consistency, grain size, other 
descriptors
Rock Description: modifier, color, hardness/degree of concentration, bedding 
and joint characteristics, solutions, void conditions.De
p
t
h
 (f
e
e
t
)
Sa
m
p
l
e
 Ty
p
e
Gr
a
p
h
i
c
 Lo
g
Or
g
a
n
i
c
 Va
p
o
r

Le
v
e
l
s
 (p
p
m
)
Borehole Completion:
Total Depth Elevation:
United States Environmental Protection Agency
TDD: 0008/1410‐07 EPA‐ MW‐05 Replacement
700 South 1600 East PCE Plume WO#: 20408.012.008.0189.00
500 Foothills Dr. Building 16 Salt Lake City, Utah
Groundwater Elevation:
Drilling Contractor:
1435 Garrison Street, Suite 100
Lakewood, Colorado 80215 Elevation:
Longitude:
Latitude:
End Date:
Start Date:
Boring ID:
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
Sheet: 4 of 5
172.0'‐175.0' Rock stuck in bit. No cuttings returned.
<Clay Continued. Minimal Cobbles.>
195.0'‐216.8' Clay: brown, dry, medium stiff, low plasticity, 
moderately cohesive, <10% coarse content (sand, gravel, and 
cobble).
*=pending survey; elevations are feet above mean sea level; bgs = below ground surface; USCS=Unified Soil Classification System; PVC=polyvinyl chloride
<Clay Continued>
4569
4584
Sc
h
e
d
u
l
e
 80
 ‐

4 In
c
h
 PV
C
 Ri
s
e
r
CL
CL
Notes:
Core: 
63 4544
<1
<1
195 4549Core: 
62
Ph
o
t
o
:
 14
1
8
200
Core: 
59
Core: 
60
Core: 
61
Ph
o
t
o
:
 14
1
7
4554
2/
1
2
 Si
l
i
c
a
 Sa
n
d
185 4559
<1
<1
190
Core: 
57
Core: 
58
Ph
o
t
o
:
 14
1
6
4564
4574
3/
4
 In
c
h
 Be
n
t
o
n
i
t
e
 Ch
i
p
s
 (H
y
d
r
a
t
e
d
 In
‐Pl
a
c
e
)
Sc
h
e
d
u
l
e
 80
 ‐

0.
0
1
0
 In
c
h
 Sl
o
t
 4 In
c
h
 PV
C
 Sc
r
e
e
n
180
175 Core: 
55
Core: 
56
170 Core: 
54
160
<1
Core: 
51
Core: 
52
Core: 
53
Ph
o
t
o
:
 14
1
5
165
<1
<1
4589
<1 Core: 
50
Ph
o
t
o
:
 14
1
3
Ph
o
t
o
:
 14
1
4
4579
Tr
e
m
i
e
 Pi
p
e
 Pl
a
c
e
d
 Be
n
t
o
n
i
t
e
 Gr
o
u
t
<1
Core: 47
Core: 
48
Core: 
49
155 154.5'‐195.0' Minimal Cobbles <5%.
<1
Groundwater Depth (feet bgs): 215
Total Depth (feet bgs): 230
Borehole Diameter (inches):8
4744
‐111.83918○*
40.755969○*
September 25, 2016
September 23, 2016
EPA‐MW‐05R
Well Design
El
e
v
a
t
i
o
n

(f
e
e
t
)
Well Installed
4514
4529
Sa
m
p
l
e
 ID

(B
l
o
w
 Co
u
n
t
s
)
Geologist:
Drilling Method:
Roy Weindorf
Cascade Drilling
Sonic
US
C
S
Lithologic Description
Soil Group Name: modifier, color, moisture, density/consistency, grain size, other 
descriptors
Rock Description: modifier, color, hardness/degree of concentration, bedding 
and joint characteristics, solutions, void conditions.De
p
t
h
 (f
e
e
t
)
Sa
m
p
l
e
 Ty
p
e
Gr
a
p
h
i
c
 Lo
g
Or
g
a
n
i
c
 Va
p
o
r

Le
v
e
l
s
 (p
p
m
)
Borehole Completion:
Total Depth Elevation:
United States Environmental Protection Agency
TDD: 0008/1410‐07 EPA‐ MW‐05 Replacement
700 South 1600 East PCE Plume WO#: 20408.012.008.0189.00
500 Foothills Dr. Building 16 Salt Lake City, Utah
Groundwater Elevation:
Drilling Contractor:
1435 Garrison Street, Suite 100
Lakewood, Colorado 80215 Elevation:
Longitude:
Latitude:
End Date:
Start Date:
Boring ID:
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
______
__
__
__
__
Sheet: 5 of 5*=pending survey; elevations are feet above mean sea level; bgs = below ground surface; USCS=Unified Soil Classification System; PVC=polyvinyl chloride
<Clay Continued>
215.0' Becomes wet.
CL
245 4499
250
240
4494
4504
4509
Materials Used: 
Slotted PVC (10 foot): 
3; PVC Riser (10 foot): 
20; Sand (50 pound 
bag): 19; Bentonite 
Chips (50 pound bag): 
3; Grout (50 pound 
235
4514Slough
END OF BORING
230
225
<1
Ph
o
t
o
:
 14
2
2
4519
4524217.6'‐230.0' Clay: brown, wet, medium stiff, low plasticity, 
moderately cohesive, <10% coarse content (sand, gravel, and 
cobble).Sc
h
e
d
u
l
e
 80
 ‐

0.
0
1
0
 In
c
h
 Sl
o
t
 4 In
c
h
 PV
C
 Sc
r
e
e
n
220
Core: 
69 216.8'‐217.6' Sand: brown, wet, loose, coarse grained, moderately
well sorted, sub angular (photo: 1421).
4529
4539
2/
1
2
 Si
l
i
c
a
 Sa
n
d
<1
<1
<1
<1
<1
4534
Core: 
64
Core: 
65
Ph
o
t
o
:
 14
1
9
Ph
o
t
o
:
 14
2
0
205
210
Core: 
66
Core: 
67
Core: 
68215
Notes:
X<A>S.
imm\ URS °Peratin9 SOIL BORING LOG / MONITORING WELL
Still/ Services CONSTRUCTION DIAGRAM
\£fGTo2X
Boring /Well Number:
EPA-MW-06
TDD Name/Project Number: Sjte Location-
Mount Olivet
7580314.00 Salt Lake City, Utah
Boring Depth (ft) X Diameter (in): 134.0x8 Drilling Method: Hammer Rig w/advance casing
Well Contractor Name:
Ground Surface
Elevation (ASL):
Date Started:
9/22/99
Layne Christenson Logged by: Mike Carmien
Top of Casing Lai f.^ C/o^. *fa^~ Northing
Elevation (ASL): Long. jS^^' *^ Easting
Date Completed: Additional Comments:
9/23/99 Sunnyside Park north of tennis court
Lithologic Description
Silty clay; tan-brown, plastic,10% cobbles
Silty gravel; Red, low plasticity, no clay, dry,
PID=background
Gravelly sand; reddish, silty, medium grained
sand, 10% gravel
Silty clay; reddish-pink, plastic, moist
w 2 Well
« &§ « D,e
K
plh Construction= E (feetb.g.s. Detaj|s
GM
SM
UL
Wt)IJ I
o A c
^?> -1 \
0 ^°L"j
0(
0 V
c">
D >°
: >
, A =
^C
i
o-n
5-j
io-H
d
120-HJ
30 ~
35~I
An ~4U
45~
50-^
55-3
60~
4" Sch. 40 PVC
blank, bentonite
pellet seal
a. 5 £•
l"» 11E £ g 8
fl3 ^ 40 OJ
§"c3
m 8
Q
"-?Si
D.
-
* SS (split spoon) HSA (hollow stem auger) MC (Geoprobe macrocore) CT (cuttings)
Observations
Static Water Level (from TOC)
Static Water Level (ASL)
Date:
Level:
Level:
9/23/99
V .118.21
1/6/00
£ 121
njjjffi\ URS Operating SOIL BORING LOG / MONITORING WELL
\ijjmj Services CONSTRUCTION DIAGRAM
Boring / Well Number: TDD Name/Project Number: site Location-
Mount Olivet
EPA-MW-06 7580314.00 Salt Lake City, Utah
Lithologic Description
Gravelly silt; red, 30% gravel, dry
Silty sand; red
Sandy gravel; red, dry
Sitly sand; red, dry
Silty sand; red, wet (water table @ 1 15 bgs)
Gravel/silt/clay; very resistant, slow drilling,
well cemented, qtz, rhyolite, amphiboles, and
feldspars
to s Well
« E 3 H °e
h
p'h
c Construction3 o (feetb-s-s- DetaHs
IC3M >'
)c
1
a
>c
J<
0
>^
0
,<
SM
liW »^
,4
;l
,*«• j
SM ... V
SM •". •'
GM jv J
1
0 ~\
1 HI
- 1
K 75 -3
~v° ~U
> ""•
K 80^1-;< a
^ 85^-;< j
)f 30 ~l
I
. ; iH n 10-20 mesh silica
ii 951 I^, 100— ./H-
< - • E^ IDS— ;,|:
t =-;'E
•) 1 (U _
':•: I • h •
:"• ^ ^ ^ — • . E -
. . • — |-•'.£.
.;•. 1 120— :^:„_ t
r-\. _ . - , — .--.n.( 125 — :t:
r - •' f~ •
I--bi-
j( 130 J «
. sand
. 4" Sen. 40 slotted
screen in 10-20
mesh sand
-= * CL 0)
0-0) C >
E §. a 8
£D .^ W 0)w K a:
5-
m 8
g_
c^
~- Q.Q S
Q.
* SS (split spoon) HSA (hollow stem auger) MC (Geoprobe macrocore) CT (cuttings)
Observations
Static Water Level (from TOC)
Static Water Level (ASL)
Date:
Level:
Level:
9/23/99
5- 118.21
1/6/00
* 121
Hand auger to 5' bgs.
Possibly no longer
saturated.
0.0
5.0
10.0
10.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
No recovery from 0-5' bgs.
LEAN CLAY (CL)
greenish gray (Gley 1 6/10Y), moist, stiff, medium-high
plasticity, occasional rust streaks. Gravel (0%), sand (5%),
fines (95%).
Becomes firm.
Frequent interbedded silt layers up to 1" thick.
SANDY SILT (ML)
brown (7.5YR 4/3), wet, firm, nonplastic fines. Gravel (0%),
sand (35%), fines (65%).
SILTY SAND (SM)
brown (7.5YR 4/3), wet, medium dense, poorly-graded fine
sand. Gravel (0%), sand (65%), fines (35%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
greenish gray (Gley 1 6/10Y), moist, stiff, medium-high
plasticity. Gravel (15%), sand (15%), fines (70%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 5/3), wet to moist, dense, well-graded sand and
gravel. Gravels up to 3". Subrounded to subangular gravels.
Gravel (50%), sand (30%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12D
WATER LEVEL : 15.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/16/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 1 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442139.32, E 1540463.96
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Possibly saturated.
10.0
10.0
10.0
PID = 0.0
PID = 0.1
PID = 0.5
PID = 0.0
PID = 0.1
Bentonite pellets
2" schedule 40 PVC
SILTY GRAVEL WITH SAND (GM)
brown (10YR 5/3), moist, dense, well-graded sand and gravel.
Gravels up to 3". Subangular gravels. Gravel (60%), sand
(25%), fines (15%).
GRAVELLY CLAY WITH SAND (CL)
yellowish brown / moderate yellowish brown (10YR 5/4), moist
to wet, firm to soft, medium plasticity.
SILTY GRAVEL WITH SAND (GM)
brown (10YR 5/3), moist to wet, dense, well-graded sand and
gravel. Gravels up to 3". Gravel (40%), sand (35%), fines
(25%).
SILT WITH SAND (ML)
brown (7.5YR 4/3), moist to wet, soft, low plasticity. Gravel
(5%), sand (15%), fines (80%).
POORLY GRADED SAND WITH SILT AND GRAVEL (SP)
brown (7.5YR 4/3), moist to wet, medium dense, fine-grained
sand. Gravel (10%), sand (80%), fines (10%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/3), moist to wet, dense, well-graded sand and
gravel. Gravels up to 3". Gravel (50%), sand (20%), fines
(30%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/3), moist to wet, dense, well-graded sand and
gravel. Gravels up to 3". Occasional cobbles. Subangular
gravel. Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12D
WATER LEVEL : 15.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/16/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 2 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442139.32, E 1540463.96
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), moist, very dense, poorly-graded gravels
(mostly pea gravel). Some gravels up to 2". Gravel (45%),
sand (25%), fines (30%).
Becomes dry at 57.5' bgs.
SANDY SILT (ML)
reddish brown / moderate brown (5YR 4/4), moist to wet, firm,
nonplastic. Gravel (0%), sand (35%), fines (65%).
Becomes wet (saturated) at 59.5' bgs.
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand, poorly-graded gravel. Gravels up to 1".
Gravel (45%), sand (35%), fines (20%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity, poorly-graded fine sand. Gravel (0%), sand (35%),
fines (65%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm to stiff,
medium-high plasticity. Occasional sand layer. Gravel (0%),
sand (10%), fines (90%).
2" sand layer at 65.5' bgs.
5" sand layer 67' bgs.
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), wet, dense, well-graded sand,
poorly-graded gravel. Gravel (20%), sand (60%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, dense, well-graded sand and gravel.
Gravel (50%), sand (30%), fines (20%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, firm
to stiff, medium plasticity. Silt layers up to 6". Gravel (0%),
sand (10%), fines (90%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12D
WATER LEVEL : 15.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/16/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 3 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442139.32, E 1540463.96
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
5.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
GRAVELLY CLAY WITH SAND (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, stiff
to firm, medium plasticity, well-graded gravels. Occasional
cobble. Gravel (25%), sand (10%), fines (65%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, stiff, medium
plasticity.
LEAN CLAY (CL)
brown (10YR 4/3), moist, stiff, medium-high plasticity. Gravel
(0%), sand (5%), fines (95%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, very dense,
well-graded sand and gravel. Occasional cobble. Gravel
(50%), sand (30%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Occasional cobble. Gravel
(50%), sand (30%), fines (20%).
SANDY LEAN CLAY WITH GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity. Gravel (20%), sand (25%), fines (55%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Gravel (50%), sand (30%), fines
(20%).
Boring terminated at 95 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12D
WATER LEVEL : 15.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/16/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 4 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7442139.32, E 1540463.96
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
10.5
9.5
PID = 0.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
3/8" bentonite chips
2" schedule 40 PVC
No recovery from 0-5' bgs.
LEAN CLAY (CL)
greenish gray (10GY 6/1), moist, stiff, medium-high plasticity.
Occasional rust streaks. Gravel (0%), sand (5%), fines (95%).
Becomes firm.
Silt layers up to 4" thick. Saturated.
SANDY SILT (ML)
brown (7.5YR 4/3), wet, firm, nonplastic fines. Gravel (0%),
sand (35%), fines (65%).
SILTY SAND (SM)
brown (7.5YR 4/3), wet, medium dense, poorly-graded fine
sand, nonplastic fines. Gravel (0%), sand (65%), fines (35%).
CLAYEY GRAVEL WITH SAND (GC)
greenish gray (10GY 6/1), dry to moist, dense, well-graded
sand and gravel, occasional cobbles. Gravel (50%), sand
(25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12S
WATER LEVEL : 57.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/17/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 1 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442144.49, E 1540464.04
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
9.5
10.0
10.0
PID = 0.0
PID = 0.0
3/8" bentonite chips
2" schedule 40 PVC
20/40 silica sand
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), moist to dry, dense, well-graded sand and
gravel. Gravels up to 3". Gravel (50%), sand (30%), fines
(20%).
SANDY SILT (ML)
brown (7.5YR 4/3), moist to wet, firm, low plasticity. Gravel
(5%), sand (25%), fines (70%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/3), moist, dense, well-graded sand and
gravel. Gravel (45%), sand (25%), fines (30%)
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/3), moist to wet, dense, well-graded sand and
gravel, occasional cobbles. Gravel (45%), sand (25%), fines
(30%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12S
WATER LEVEL : 57.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/17/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 2 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442144.49, E 1540464.04
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
5.0
PID = 0.8
PID = 0.0
PID = 0.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
Slough
SANDY SILT (ML)
brown (7.5YR 4/4), moist to wet, firm, nonplastic fines,
poorly-graded fine sand. Gravel (0%), sand (35%), fines
(65%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), moist to wet, dense, well-graded sand,
poorly-graded gravel. Gravels up to 1". Gravel (45%), sand
(40%), fines (15%).
SANDY SILT (ML)
brown (7.5YR 4/4), wet, firm, nonplastic fines, poorly-graded
fine sand. Gravel (0%), sand (35%), fines (65%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, dense, well-graded sand,
poorly-graded gravel. Gravel up to 1". Gravel (45%), sand
(40%), fines (15%).
LEAN CLAY (CL)
brown (7.5YR 4/4), moist, stiff, medium plasticity. Gravel
(0%), sand (5%), fines (95%).
INTERBEDDED SILTY SAND (SM) WITH SANDY SILT
(ML)
brown (7.5YR 4/4), wet, firm or dense. Gravel (0%), sand
(50%), fines (50%).
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), wet, soft, medium plasticity. Gravel (0%),
sand (40%), fines (60%).
Boring terminated at 65 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-12S
WATER LEVEL : 57.0 ft bgs
LOCATION : 900 S and McClelland Street
END : 7/17/2018
ELEVATION : 4360.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/16/2018
SHEET 3 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442144.49, E 1540464.04
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 3.5' bgs.
Fill material.
Woody debris (possibly
2x4s) at 15'.
Native material begins
after 15' bgs.
0.0
7.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.1
PID = 0.1
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
No recovery from 0-3' bgs.
LEAN CLAY (CL)
dark brown (10YR 3/3), moist, firm to stiff, medium plasticity.
Gravel (0%), sand (5%), fines (95%).
Color change to yellowish brown (10YR 5/4).
SILTY SAND WITH GRAVEL (SM)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, poorly-graded fine sand. Gravel (10%), sand (75%),
fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Gravel (50%), sand (20%), fines
(30%).
SANDY SILT (ML)
reddish brown / moderate brown (5YR 4/4), wet, firm,
nonplastic. Gravel (0%), sand (35%), fines (65%).
SILTY SAND (SM) TO CEMENTED SAND (SM)
brown (10YR 4/3), wet, medium dense, poorly-graded fine
sand. Gravel (0%), sand (85%), fines (15%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, low
plasticity. Gravel (0%), sand (40%), fines (60%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-13D
WATER LEVEL : 15.0 ft bgs
LOCATION : South side of East HS
END : 7/13/2018
ELEVATION : 4483.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/12/2018
SHEET 1 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442104.66, E 1541840.21
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Gradational contact.
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, well-graded sand and gravel. Gravels up to 2". Gravel
50%, sand 20%, fines 30%.
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity. Gravel (50%), sand (20%), fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, well-graded sand and gravel. Gravel up to 3".
Occasional cobbles. Gravel (45%), sand (35%), fines (20%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity. Gravel (0%), sand (5%), fines (95%).
GRAVELLY CLAY WITH SAND (CL)
reddish brown / moderate brown (5YR 4/4), wet, firm, medium
plasticity, poorly-graded fine gravel. Gravel (30%), sand
(10%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Gravels up to 3". Occasional
cobbles. Subrounded to subangular gravels and cobbles.
Gravel (50%), sand (25%), sand (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-13D
WATER LEVEL : 15.0 ft bgs
LOCATION : South side of East HS
END : 7/13/2018
ELEVATION : 4483.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/12/2018
SHEET 2 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442104.66, E 1541840.21
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Pushed a Shelby from
60-62' bgs.
Gradational contact.
Pushed a Shelby from
70-72' bgs.
Core barrel came up
empty during the first
run from 70-80' bgs. It
was redrilled and the
sample came up
disturbed from being
redrilled.
10.0
10.0
8.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
Increased fines. Gravel (40%), sand (15%), fines (45%).
Cobbles become more frequent.
Decreased fines and cobbles. Gravel (40%), sand (35%),
fines (25%).
7" sandy clay layer at 57.5' bgs.
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft to very
soft, medium-high plasticity. Gravel (0%), sand (10%), fines
(90%).
Becomes dry from 65-66.5' bgs. May have been cemented.
Becomes firm.
SILTY SAND (SM)
reddish brown / moderate brown (5YR 4/4), wet, loose,
well-graded fine sand, some clayey layers.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-13D
WATER LEVEL : 15.0 ft bgs
LOCATION : South side of East HS
END : 7/13/2018
ELEVATION : 4483.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/12/2018
SHEET 3 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442104.66, E 1541840.21
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
8.0
5.0
5.0
PID = 0.0
PID = 0.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, stiff, medium
plasticity. Gravel (0%), sand (10%), fines (90%).
CLAYEY SAND WITH GRAVEL (SC)
reddish brown / moderate brown (5YR 4/4), wet, loose,
well-graded sand, poorly-graded fine gravel. Gravel (10%),
sand (50%), fines (40%).
POORLY GRADED SAND WITH SILT (SP)
brown (7.5YR 4/3), wet, loose, fine-grained sand. Gravel
(0%), sand (90%), fines (10%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Gravels up to 3". Gravel (50%),
sand (20%), fines (30%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist, stiff,
medium-high plasticity. Gravel (0%), sand (5%), fines (95%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, firm
to stiff, medium-high plasticity. Gravel (15%), sand (10%),
fines (75%).
Boring terminated at 90 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-13D
WATER LEVEL : 15.0 ft bgs
LOCATION : South side of East HS
END : 7/13/2018
ELEVATION : 4483.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/12/2018
SHEET 4 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7442104.66, E 1541840.21
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 3.5' bgs.
Large wood pieces
found in the core.
Pushed a Shelby from
21-22' bgs.
0.0
7.0
11.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
No recovery from 0-3' bgs.
LEAN CLAY (CL)
dark brown (10YR 3/3), moist, firm to stiff, medium plasticity,
some organincs. Gravel (5%), sand (5%), fines (90%).
SILTY SAND (SM)
dark brown (10YR 3/3), dry, loose, poorly-graded fine sand.
Gravel (0%), sand (60%), fines (40%).
LEAN CLAY (CL)
dark brown (10YR 3/3), moist, firm to stiff, medium plasticity,
some organics. Gravel (5%), sand (5%), fines (90%).
SILTY SAND (SM)
reddish brown / moderate brown (5YR 4/4), moist to wet,
medium dense, poorly-graded fine sand. Gravel (0%), sand
(80%), fines (20%).
SILTY SAND WITH GRAVEL (SM)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, well-graded sand and gravel. Rounded gravels. Gravel
(35%), sand (50%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel, some cobbles. Gravel (50%),
sand (20%), fines (30%).
SANDY SILT (ML)
reddish brown / moderate brown (5YR 4/4), wet, firm,
nonplastic fines. Gravel (0%), sand (35%), fines (65%).
CLAYEY SAND (SC)
reddish brown / moderate brown (5YR 4/4), wet, loose,
poorly-graded fine sand. Gravel (0%), sand (55%), fines
(45%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, stiff, medium
plasticity. Gravel (0%), sand (30%), fines (70%).
Boring terminated at 22 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-13S
WATER LEVEL : 15.0 ft bgs
LOCATION : South side of East HS
END : 7/14/2018
ELEVATION : 4483.1 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/14/2018
SHEET 1 OF 1
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442104.9, E 1541844.81
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
10.0
10.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
3/8" bentonite chips
2" schedule 40 PVC
No recovery from 0-5' bgs.
SILTY CLAY (CL)
yellowish brown (10YR 5/6), wet, soft, medium-low plasticity.
Gravel (0%), sand (10%), fines (90%).
SILT WITH SAND (ML)
gray (5Y 5/1), wet, firm, nonplastic. Gravel (0%), sand (20%),
fines (80%).
Occasional organics.
LEAN CLAY (CL)
gray (5Y 5/1), wet, firm, medium plasticity. Gravel (0%), sand
(10%), fines (90%).
SILT WITH SAND (ML)
gray (5Y 5/1), wet, firm, nonplastic. Gravel (0%), sand (20%),
fines (80%).
LEAN CLAY (CL)
gray (5Y 5/1), wet, very soft, medium-low plasticity. Gravel
(0%), sand (10%), fines (90%).
SILT WITH SAND (ML)
gray (5YR 5/1), wet, firm, nonplastic. Occasional sand layers
up to 2" thick. Gravel (0%), sand (25%), fines (75%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-14D
WATER LEVEL : 5.5 ft bgs
LOCATION : Alpine Place
END : 7/22/2018
ELEVATION : 4416.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/21/2018
SHEET 1 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441874.25, E 1541345.32
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
()WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Gradational contact.
Gradational contact.
Gradational contact.
Gradational contact.
Gradational contact.
10.0
10.0
10.0
3/8" bentonite chips
2" schedule 40 PVC
20/40 silica sand
4" sand layer at 26' bgs.
LEAN CLAY (CL)
dark yellowish brown (10YR 4/4), moist, stiff to very stiff,
medium plasticity. Gravel (0%), sand (5%), fines (95%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
dark yellowish brown (10YR 4/4), moist, firm to stiff, medium
plasticity. Gravel (20%), sand (9%), fines (71%).
GRAVELLY CLAY WITH SAND (CL)
dark yellowish brown (10YR 4/4), moist, firm, medium
plasticity. Gravel (30%), sand (15%), fines (45%).
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 4/4), moist, dense, well-graded
sand and gravel. Gravels up to 3". Subrounded gravels.
Gravel (50%), sand (30%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
dark yellowish brown (10YR 4/4), wet, medium dense,
well-graded sand and gravel. Gravels up to 2". Subrounded
gravels. Gravel (50%), sand (35%), fines (15%).
SANDY LEAN CLAY WITH GRAVEL (CL)
dark yellowish brown (10YR 4/4), moist, stiff, medium
plasticity. Gravel (10%), sand (30%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish brown / moderate yellowish brown (10YR 5/4), moist,
dense, well-graded sand and gravel.
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (2.5YR 4/4), moist, stiff, medium-high
plasticity. Gravel (10%), sand (15%), fines (75%).
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 4/4), wet, dense, well-graded
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-14D
WATER LEVEL : 5.5 ft bgs
LOCATION : Alpine Place
END : 7/22/2018
ELEVATION : 4416.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/21/2018
SHEET 2 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7441874.25, E 1541345.32
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
()WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Pushed a Shelby from
65-66' bgs.
10.0
5.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
sand and gravel. Gravels up to 2". Rounded gravels. Gravel
(50%), sand (20%), fines (30%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (2.5YR 4/4), moist, very stiff, medium-high
plasticity. Gravel (10%), sand (10%), fines (80%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 4/4), wet, dense, well-graded sand and
gravel. Gravels up to 3". Subrounded gravels. Gravel (40%),
sand (30%), fines (30%).
LEAN CLAY (CL)
reddish brown (2.5YR 4/4), moist, stiff to very stiff,
medium-high plasticity. Gravel (0%), sand (5%), fines (95%).
Boring terminated at 65 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-14D
WATER LEVEL : 5.5 ft bgs
LOCATION : Alpine Place
END : 7/22/2018
ELEVATION : 4416.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/21/2018
SHEET 3 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7441874.25, E 1541345.32
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
()WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
5.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
2" schedule 40 PVC
Bentonite pellets
0.010" slotted
screen, 2" sch. 40
PVC
20/40 silica sand
No recovery from 0-5' bgs.
LEAN CLAY (CL)
black (10YR 2/1), moist to wet, firm, medium plasticity. Some
organics. Gravel (0%), sand (20%), fines (80%).
SANDY SILT (ML)
gray (5Y 5/1), wet, firm, nonplastic. Occasional roots. Gravel
(0%), sand (30%), fines (70%).
SILT WITH SAND (ML)
gray (5Y 5/1), wet, firm, nonplastic. Occasional roots.
Boring terminated at 15 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-14S
WATER LEVEL : 5.0 ft bgs
LOCATION : Alpine Place
END : 7/23/2018
ELEVATION : 4416.1 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/23/2018
SHEET 1 OF 1
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441871.66, E 1541340.01
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
()WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
10.0
10.0
PID = 0.2
PID = 0.4
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
No recovery from 0-5' bgs.
LEAN CLAY (CL)
olive (5Y 5/3), very moist, firm, medium-high plasticity. Some
rust streaking. Occasional silt layers. Gravel (0%), sand (5%),
fines (95%).
One thin (<2") wet layer at 19' bgs.
SILTY SAND (SM)
brown (7.5YR 5/4), moist, dense, poorly-graded fine sand.
Gravel (0%), sand (65%), fines (35%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/3), moist, dense, well-graded sand and
gravel. Occasional cobbles. Angular to subangular gravels.
Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15D
WATER LEVEL : 48.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/19/2018
ELEVATION : 4347.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/19/2018
SHEET 1 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441412.77, E 1540283.36
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
8.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
6" clay layer at 40.5' bgs.
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/3), moist, very dense, well-graded sand and
gravel. Gravels up to 3". Angular to subangular gravels.
Gravel (50%), sand (30%), fines (20%).
2" clay layer at 49.5' bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15D
WATER LEVEL : 48.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/19/2018
ELEVATION : 4347.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/19/2018
SHEET 2 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7441412.77, E 1540283.36
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Water table appeared
to be at 50' bgs in the
soil. Left the boring
open from 50-60' bgs,
water came up to 48'
bgs.
Lost the core from
70-80' bgs. Redrilled
and recovered the core
with an auger bit.
10.0
10.0
6.5
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
LEAN CLAY (CL)
brown (7.5YR 4/4), moist to wet, firm, medium-high plasticity.
Gravel (0%), sand (5%), fines (95%).
4" sandy clay layer at 49.5' bgs.
Occasional silt layers.
WELL GRADED SAND WITH SILT (SW-SM)
brown (7.5YR 4/4), wet, loose. Gravel (5%), sand (85%), silt
(10%).
SANDY SILT (ML)
brown (7.5YR 4/4), wet, firm, nonplastic. Gravel (0%), sand
(40%), fines (60%).
LEAN CLAY (CL)
brown (7.5YR 4/4), moist, firm to stiff, medium plasticity.
Gravel (0%), sand (5%), fines (95%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), wet, dense, well-graded sand and gravel.
Gravels up to 2". Subrounded gravels. Gravel (50%), sand
(30%), fines (20%).
LEAN CLAY WITH SAND (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity, poorly-graded
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15D
WATER LEVEL : 48.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/19/2018
ELEVATION : 4347.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/19/2018
SHEET 3 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7441412.77, E 1540283.36
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Pushed a Shelby from
95-96' bgs.
6.5
10.0
5.0
3/8" bentonite chips
fine sand. Gravel (0%), sand (20%), fines (80%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), wet, loose, well-graded sand and gravel.
Gravel up to 1 1/2". Subrounded to rounded gravels. Gravel
(45%), sand (30%), fines (15%).
SILTY CLAY (CL)
brown (7.5YR 4/4), moist, stiff, low plasticity. Gravel (0%),
sand (10%), fines (90%).
6" sand layer at 84.5' bgs.
6" sand layer at 87' bgs.
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, dense, well-graded sand,
poorly-graded gravel. Gravel up to 1". Gravel (50%), sand
(30%), fines (20%).
LEAN CLAY (CL)
brown (7.5YR 4/4), moist to wet, firm to stiff, medium
plasticity. Sand layers throughout. Gravel (0%), sand (10%),
fines (90%).
6" sand layer at 90.8' bgs.
4" sand layer at 93.2' bgs.
Boring terminated at 95 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15D
WATER LEVEL : 48.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/19/2018
ELEVATION : 4347.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/19/2018
SHEET 4 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7441412.77, E 1540283.36
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
10.0
10.0
PID = 0.2
PID = 0.4
PID = 0.1
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
3/8" bentonite chips
2" schedule 40 PVC
No recovery from 0-5' bgs.
LEAN CLAY (CL)
olive (5Y 5/3), moist to very moist, firm to stiff, medium-high
plasticity. Frequent rust streaking. Occasional silt layers.
Gravel (0%), sand (5%), fines (95%).
SILTY SAND (SM)
brown (7.5YR 5/4), moist, dense, poorly-graded fine sand,
nonplastic. Gravel (0%), sand (65%), fines (35%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/3), moist, dense, well-graded sand and
gravel. Occasional cobbles. Angular to subangular gravels
and cobbles. Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15S
WATER LEVEL : 45.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/20/2018
ELEVATION : 4347.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/20/2018
SHEET 1 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441412.96, E 1540276.46
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Gradational contact.
10.0
10.0
10.0
PID = 0.2
PID = 0.0
PID = 0.2
PID = 0.0
3/8" bentonite chips
2" schedule 40 PVC
LEAN CLAY (CL)
olive (5Y 5/3), wet, soft, medium-high plasticity. Gravel (0%),
sand (5%), fines (95%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/3), moist to dry, very dense, well-graded sand
and gravel. Subrounded gravels. Gravel (50%), sand (25%),
fines (25%).
SANDY LEAN CLAY (CL)
brown (7.5YR 5/3), moist, soft, poorly-graded fine sand,
medium plasticity. Gravel (20%), sand (25%), fines (55%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/3), very moist, dense, well-graded sand and
gravel. Gravels up to 3". Angular to subangular gravels.
Gravel (50%), sand (30%), fines (20%).
SILTY CLAY WITH SAND (CL)
brown (7.5YR 5/3), wet, soft, low plasticity. Gravel (0%), sand
(20%), fines (80%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/3), wet, dense, well-graded sand,
poorly-graded gravel. Gravel (50%), sand (30%), fines (20%).
SANDY LEAN CLAY (CL)
brown (7.5YR 5/3), wet, soft, medium-low plasticity. Gravel
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15S
WATER LEVEL : 45.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/20/2018
ELEVATION : 4347.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/20/2018
SHEET 2 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7441412.96, E 1540276.46
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
5.0
10.0
PID = 0.1
PID = 0.0
PID = 0.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
(10%), sand (25%), fines (65%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
brown (7.5YR 5/3), wet to moist, firm, medium plasticity.
Gravel (10%), sand (10%), fines (80%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/3), wet, dense, well-graded sand and gravel.
Subrounded to subangular gravels. Gravel (60%), sand (25%),
fines (15%).
LEAN CLAY (CL)
brown (7.5YR 5/3), moist, stiff, medium plasticity. Gravel
(60%), sand (25%), fines (15%).
SILTY SAND (SM)
brown (7.5YR 5/3), wet, dense, poorly-graded fine sand.
Gravel (0%), sand (60%), fines (40%).
SILTY SAND WITH GRAVEL (SM)
brown (7.5YR 5/3), wet, dense, poorly-graded fine sand.
Gravel (10%), sand (65%), fines (25%).
SILTY SAND (SM)
brown (7.5YR 5/3), wet, dense, poorly-graded fine sand.
Gravel (0%), sand (60%), fines (40%).
SANDY SILT (ML)
brown (7.5YR 5/3), wet, firm to stiff, nonplastic. Gravel (0%),
sand (40%), fines (60%).
Boring terminated at 65 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-15S
WATER LEVEL : 45.0 ft bgs
LOCATION : Belmont Ave. near McClelland St.
END : 7/20/2018
ELEVATION : 4347.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/20/2018
SHEET 3 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7441412.96, E 1540276.46
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
Poor recovery from
20-30' bgs.
0.0
5.0
10.0
5.0
PID = 0.2
PID = 0.2
PID = 0.0
PID = 0.1
PID = 0.1
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
3/8" bentonite chips
2" schedule 40 PVC
No recovery from 0-5' bgs.
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), dry, dense,
well-graded sand and gravel. Gravels up to 3". Subangular to
subrounded gravels. Frequent cobbles/boulders. Gravel
(45%), sand (30%), fines (25%).
Becomes moist at 8' bgs.
INTERBEDDED SANDY SILT AND SILTY SAND
Sandy silt - reddish brown (5YR 4/4), wet, firm, nonplastic.
Gravel (0%), sand (40%), fines (60%).
Silty sand - reddish brown (5YR 4/4), wet, medium dense,
poorly-graded fine sand, nonplastic fines. Gravel (0%), sand
(60%), fines (40%).
Total - Gravel (0%), sand (50%), fines (50%).
3" clay layerat 17' bgs.
6" clay layer at 18' bgs.
CLAYEY SAND WITH GRAVEL (SC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel. Gravel (30%), sand (40%), fines
(30%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-16D
WATER LEVEL : 10.0 ft bgs
LOCATION : Elizabeth Street
END : 7/18/2018
ELEVATION : 4455.2 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/18/2018
SHEET 1 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7443053.1, E 1541188.6
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Gradational contact.
5.0
10.0
10.0
PID = 0.1
PID = 0.0
PID = 0.0
PID = 0.2
PID = 0.3
3/8" bentonite chips
2" schedule 40 PVC
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity, fine-grained sands. Gravel (0%), sand (35%), fines
(65%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, well-graded sand and gravel. Gravels up to 2".
Subrounded gravels. Gravel (45%), sand (30%), fines (25%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, medium
plasticity, fine-grained sand. Gravel (0%), sand (35%), fines
(65%).
CLAYEY SAND WITH GRAVEL (SC)
reddish brown / moderate brown (5YR 4/4), wet, medium
dense, poorly-graded fine gravel, well-graded sand. Gravels
up to 1".
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, firm to stiff,
medium plasticity. Gravel (0%), sand (10%), fines (90%).
INTERBEDDED SANDY SILT AND SILTY SAND
Sandy Silt - reddish brown (5YR 4/4), wet, firm, nonplastic,
fine-grained sand. Gravel (0%), sand (40%), fines (60%).
Silty Sand - reddish brown (5YR 4/4), wet, medium dense,
poorly-graded fine sand. Gravel (0%), sand (60%), fines
(40%).
Total - Gravel (0%), sand (50%), fines (50%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, firm
to stiff, medium plasticity. Gravel (10%), sand (10%), fines
(80%).
Changes color to olive (5Y 5/3) at 40' bgs.
LEAN CLAY (CL)
olive (5Y 5/3), moist, stiff, medium-high plasticity, rust streaks
throughout. Gravel (0%), sand (5%), fines (95%).
Becomes less moist, very stiff.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-16D
WATER LEVEL : 10.0 ft bgs
LOCATION : Elizabeth Street
END : 7/18/2018
ELEVATION : 4455.2 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/18/2018
SHEET 2 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7443053.1, E 1541188.6
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Pushed a Shelby tube
from 60-62' bgs.
10.0
10.0
3.0
PID = 0.0
PID = 0.0
PID = 0.2
PID = 0.0
PID = 0.0
3/8" bentonite chips
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
Wet, silty layers from 54-56' bgs.
SILTY SAND (SM)
brown (7.5YR 5/4), wet, dense, poorly-graded fine sand.
Gravel (0%), sand (55%), fines (45%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/4), wet, dense, well-graded sand and gravel.
Gravels up to 3". Gravel (50%), sand (25%), fines (25%).
Boring terminated at 73 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-16D
WATER LEVEL : 10.0 ft bgs
LOCATION : Elizabeth Street
END : 7/18/2018
ELEVATION : 4455.2 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/18/2018
SHEET 3 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7443053.1, E 1541188.6
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
10.0
PID = 0.2
PID = 0.1
PID = 0.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
No recovery from 0-5' bgs.
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), dry, dense,
well-graded sand and gravel. Gravels up to 3". Subangular to
subrounded gravels. Frequent cobbles/boulders. Gravel
(45%), sand (30%), fines (25%).
Becomes moist at 8.5' bgs.
INTERBEDDED SANDY SILT AND SILTY SAND
Sandy Silt - reddish brown (5YR 4/4), wet, firm, nonplastic.
Gravel (0%), sand (40%), fines (60%).
Silty Sand - reddish brown (5YR 4/4), wet, medium dense,
poorly-graded fine sand, nonplastic fines. Gravel (0%), sand
(60%), fines (40%).
Total - Gravel (0%), sand (50%), fines (50%).
1" clay layer.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel, some cobbles.
Boring terminated at 20 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-16S
WATER LEVEL : 10.0 ft bgs
LOCATION : Elizabeth Street
END : 7/18/2018
ELEVATION : 4455.1 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/18/2018
SHEET 1 OF 1
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7443049.3, E 1541188.62
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
5.0
8.0
10.0
PID = 0.0
PID = 0.0
PID = 0.3
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
3/8" bentonite chips
2" schedule 40 PVC
No recovery from 0-5' bgs.
SANDY LEAN CLAY (CL)
dark gray / olive gray (5Y 4/1), moist, soft, medium plasticity.
Occasional subrounded gravels up to 2". Occasional cobble
up to 4". Gravel (5%), sand (35%), fines (65%).
SILTY CLAY WITH GRAVEL (CL)
gray (5Y 5/1), moist to wet, soft, medium plasticity.
Subrounded gravels up to 2". Gravel (20%), sand (5%), fines
(75%).
4" black band of organic material.
6" cobble.
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), wet, subrounded to subangular gravels.
Gravel up to 3". Gravel (60%), sand (10%), fines (30%).
LEAN CLAY (CL)
dark yellowish brown (10YR 4/4), dry, stiff, medium plastic,
occasional subrounded gravels up to 2". Gravel (5%), sand
(10%), fines (85%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-17D
WATER LEVEL : 6.5 ft bgs
LOCATION : Gilmer Drive
END : 7/24/2018
ELEVATION : 4465.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/24/2018
SHEET 1 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441762.22, E 1542159.87
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.1
PID = 0.0
PID = 0.0
3/8" bentonite chips
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
CLAYEY SAND WITH GRAVEL (SC)
brown (10YR 4/3), wet, subrounded, poorly-graded gravel.
Gravel up to 1". Gravel (30%), sand (40%), fines (30%).
LEAN CLAY (CL)
brown (10YR 4/3), wet, firm, medium plastic. Gravel (5%),
sand (10%), fines (85%).
CLAYEY SAND WITH GRAVEL (SC)
brown (10YR 4/3), wet, subrounded gravel up to 2". Gravel
(30%), sand (50%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, subrounded gravels up to 2", cobbles
up to 6". Gravel (50%), sand (20%), fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), wet, subangular gravels up to 2", cobbles
up to 6". Gravel (55%), sand (15%), fines (30%).
LEAN CLAY (CL)
brown (10YR 4/3), moist, stiff, medium-high plasticity.
GRAVELLY LEAN CLAY (CL)
brown (10YR 4/3), moist, stiff, medium plasticity. Subangular
gravels up to 2". Gravel (30%), sand (10%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), moist to wet, subangular gravel up to 2",
occasional cobbles up to 6". Gravel (50%), sand (30%), fines
(20%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-17D
WATER LEVEL : 6.5 ft bgs
LOCATION : Gilmer Drive
END : 7/24/2018
ELEVATION : 4465.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/24/2018
SHEET 2 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7441762.22, E 1542159.87
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
PID = 0.5
PID = 0.0
PID = 0.0
PID = 0.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
LEAN CLAY (CL)
brown (10YR 4/3), moist, stiff, medium-low plasticity. Gravel
(10%), sand (5%), fines (85%).
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 4/4), wet, subangular, gravel up
to 2". Cobbles up to 4". Gravel (40%), sand (30%), fines
(30%).
LEAN CLAY WITH SAND (CL)
dark yellowish brown (10YR 4/4), moist, stiff, medium
plasticity. Occasional subrounded gravels up to 1.5". Gravel
(5%), sand (20%), fines (75%).
4" pulverized cobble at 63' bgs.
Becomes wet at 66' bgs.
4" cobble at 67' bgs.
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 4/4), wet, subangular gravel up to
2". Gravel (50%), sand (20%), fines (30%).
LEAN CLAY WITH SAND (CL)
dark yellowish brown (10YR 4/4), wet, stiff, low plasticity.
Gravel (0%), sand (20%), fines (80%).
Boring terminated at 70 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-17D
WATER LEVEL : 6.5 ft bgs
LOCATION : Gilmer Drive
END : 7/24/2018
ELEVATION : 4465.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/24/2018
SHEET 3 OF 3
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7441762.22, E 1542159.87
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 5' bgs.
0.0
4.0
11.0
PID = 0.8
PID = 0.0
PID = 0.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
No recovery from 0-5' bgs.
SANDY LEAN CLAY (CL)
dark gray / brownish gray (5YR 4/1), soft, medium-low
plasticity, moist. Gravel (5%), sand (25%), fines (70%).
Becomes wet at 6.5' bgs.
Color change to dark yellowish brown (10YR 3/4).
Occasional 4" cobbles.
Boring terminated at 22 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-17S
WATER LEVEL : 6.5 ft bgs
LOCATION : Gilmer Drive
END : 7/25/2018
ELEVATION : 4465.7 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/25/2018
SHEET 1 OF 1
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441761.45, E 1542156.19
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hydrovac to 5' bgs
Fill material
Fill material-native
contact
0.0
5.0
7.0
10.0
PID = 0.4
PID = 0.0
PID = 0.0
PID = 0.0
PID = 6.7
2 ft x 2 ft concrete
pad with 8" steel
vault
Concrete
Bentonite grout
2" schedule 40 PVC
No recovery from 0-5' bgs.
LEAN CLAY WITH SAND (CL)
dark brown (7.5YR 3/3), moist, stiff, medium plasticity.
Gravel (10%), sand (15%), fines (75%).
SILTY SAND (SM)
yellowish brown / moderate yellowish brown (10YR 5/4), moist,
medium dense, poorly-graded fine sand. Gravel (0%), sand
(60%), fines (40%).
SILTY CLAY WITH SAND (CL)
yellowish brown / moderate yellowish brown (10YR 5/4), moist,
firm to stiff, medium to low plasticity. Gravel (0%), sand
(20%), fines (80%).
SILTY SAND WITH CLAY LAYERS (SM)
yellowish brown / moderate yellowish brown (10YR 5/4), moist,
dense, poorly-graded fine sand. Gravel (0%), sand (60%),
fines (40%).
SILTY GRAVEL WITH SAND (GM)
dark brown (7.5YR 3/3), dry, dense, well graded sand and
gravel, subangular gravels. Gravel (50%), sand (30%), fines
(20%).
LEAN CLAY WITH SAND (CL)
brown (7.5YR 5/3), moist, firm, medium to high plasticity.
Gravel (10%), sand (15%), fines (75%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 5/3), dry, dense, well-graded sand and gravel,
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-18
WATER LEVEL : 80.0 ft bgs
LOCATION : East High parking lot
END : 6/22/2018
ELEVATION : 4559.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/22/2018
SHEET 1 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7443344.56, E 1542789.68
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 3.2
PID = 1.9
PID = 1.3
PID = 0.5
PID = 0.6
PID = 2.8
PID = 2.7
PID = 2.7
PID = 6.5
Bentonite grout
2" schedule 40 PVC
subangular gravel. Gravel (65%), sand (20%), fines (15%).
Thin clay layer at 28.5' bgs.
LEAN CLAY (CL)
6" layer cemented clay, dry, very hard.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 4/3), moist, very dense, well-graded sand
and gravel, subangular to subrounded gravels, occasional
cobbles. Gravel (50%), sand (25%), fines (25%).
SILTY GRAVEL WITH SAND (GM)
reddish brown (5YR 4/3), moist to dry, very dense,
well-graded sand and gravel, subangular gravels. Gravel
(60%), sand (25%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist to dry, very
dense, well-graded sand and gravel, subangular gravels.
Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-18
WATER LEVEL : 80.0 ft bgs
LOCATION : East High parking lot
END : 6/22/2018
ELEVATION : 4559.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/22/2018
SHEET 2 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7443344.56, E 1542789.68
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 0.5
PID = 0.2
PID = 0.0
PID = 0.1
PID = 4.8
PID = 4.2
PID = 3.0
PID = 2.5
PID = 1.7
PID = 0.4
Bentonite grout
2" schedule 40 PVC
Bentonite pellets
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist to dry, very
dense, well-graded sand and gravel, subrounded to
subangular gravels up to 3". Gravel (60%), sand (25%), fines
(15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 4/3), dry, very dense, well-graded sand
and gravel, subangular to subrounded gravels. Gravel (55%),
sand (25%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-18
WATER LEVEL : 80.0 ft bgs
LOCATION : East High parking lot
END : 6/22/2018
ELEVATION : 4559.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/22/2018
SHEET 3 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7443344.56, E 1542789.68
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 3.8
PID = 0.8
PID = 0.1
PID = 0.3
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.1
PID = 0.1
Bentonite pellets
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), dry, very dense,
well-graded sand and gravel, subangular gravels up to 3",
occasional cobbles. Gravel (60%), sand (25%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded sand and gravel, subangular to subrounded
gravels up to 3". Gravel (60%), sand (20%), fines (20%).
CLAYEY SAND (SC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded gravel. Gravel (2%), sand (68%), fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense, well
-raded sand and gravel, occasional cobbles. Gravel (50%),
sand (25%), fines (25%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, low to
medium plasticity. Gravel (5%), sand (30%), fines (65%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense,
well-graded, occasional cobbles. Gravel (50%), sand (25%),
fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-18
WATER LEVEL : 80.0 ft bgs
LOCATION : East High parking lot
END : 6/22/2018
ELEVATION : 4559.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/22/2018
SHEET 4 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7443344.56, E 1542789.68
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
PID = 0.0
PID = 0.1
PID = 0.0
PID = 0.2
3/8" bentonite chips
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, low to
medium plasticity. Gravel (5%), sand (30%), fines (65%).
CLAYEY GRAVEL WITH SAND (GC)
wet, dense, well-graded sand and gravel, occasional cobbles.
Gravel (50%), sand (25%), fines (25%).
SILTY SAND (SM)
reddish brown / moderate brown (5YR 4/4), dense,
poorly-graded sand.
Boring terminated at 110 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-18
WATER LEVEL : 80.0 ft bgs
LOCATION : East High parking lot
END : 6/22/2018
ELEVATION : 4559.0 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/22/2018
SHEET 5 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7443344.56, E 1542789.68
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hydrovac to 5' bgs.
Fill material
Fill material-native
contact
0.0
5.0
6.0
10.0
PID = 0.1
PID = 0.0
PID = 0.0
PID = 0.1
2 ft x 2 ft concrete
pad with 8" steel
vault
Concrete
Bentonite grout
2" schedule 40 PVC
No recovery from 0-5' bgs.
SANDY LEAN CLAY WITH GRAVEL (CL)
very dark grayish brown (10YR 3/2), moist, firm, medium
plasticity. Gravel (20%), sand (20%), fines (60%).
SILTY SAND WITH SILT LAYERS (SM)
brown (7.5YR 4/4), dry, medium dense, poorly-graded fine
sand, nonplastic silt layers up to 1" thick. Gravel (0%), sand
(70%), fines (30%).
LEAN CLAY (CL)
dark yellowish brown (10YR 3/4), moist, firm, medium
plasticity. Gravel (0%), sand (5%), fines (95%).
Becomes dry, stiff
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-19
WATER LEVEL : 85.5 ft bgs
LOCATION : East High parking lot
END : 6/25/2018
ELEVATION : 4557.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/24/2018
SHEET 1 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7443109.99, E 1542791.39
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hard to drill
Hard to drill
10.0
10.0
10.0
PID = 0.2
PID = 0.0
PID = 1.0
PID = 1.2
PID = 2.1
PID = 0.4
Bentonite grout
2" schedule 40 PVC
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 3/4), dry, dense, well-graded
gravels up to 3", occasional cobbles. Gravel (50%), sand
(30%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), dry, very dense, well-graded sand and
gravel, gravels up to 3", occasional cobbles. Gravel (60%),
sand (25%), fines (15%).
More frequent cobbles.
Less frequent cobbles.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-19
WATER LEVEL : 85.5 ft bgs
LOCATION : East High parking lot
END : 6/25/2018
ELEVATION : 4557.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/24/2018
SHEET 2 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7443109.99, E 1542791.39
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 3.6
PID = 1.3
PID = 0.9
PID = 0.3
PID = 0.5
PID = 0.1
PID = 0.5
PID = 0.1
PID = 0.0
Bentonite grout
2" schedule 40 PVC
LEAN CLAY WITH SAND AND GRAVEL (CL)
brown (10YR 4/3), moist, stiff, medium to low plasticity.
Gravel (10%), sand (10%), fines (80%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), dry, very dense, well-graded sand and
gravel, subangular gravels up to 3", occasional cobbles.
Gravel (60%), sand (20%), fines (20%).
6" cobble at 55' bgs.
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), moist, very dense, well-graded and and
gravel, gravels up to 2". Gravel (50%), sand (20%), fines
(30%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), moist to dry, very dense, well-graded sand
and gravel, gravels up to 1.5". Gravel (60%), sand (20%),
fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), moist, very dense, well-graded sand and
gravel, gravels up to 3". Gravel (50%), sand (20%), fines
(30%).
WELL GRADED GRAVEL WITH SILT AND SAND (GW)
dark brown (7.5YR 3/4), dry, dense, subrounded to
subangular gravels up to 3". Gravel (50%), sand (40%), fines
(10%).
CLAYEY GRAVEL WITH SAND (GC)
dark brown (7.5YR 3/4), dry, very dense, subangular gravels
up to 3", occasional cobbles. Gravel (50%), sand (30%), fines
(20%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), dry, very dense,
well-graded sand and gravel, subrounded to subangular
gravels up to 3", occasional cobbles. Gravel (50%), sand
(30%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-19
WATER LEVEL : 85.5 ft bgs
LOCATION : East High parking lot
END : 6/25/2018
ELEVATION : 4557.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/24/2018
SHEET 3 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7443109.99, E 1542791.39
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 0.2
PID = 0.2
PID = 3.3
PID = 0.2
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.3
PID = 0.0
PID = 0.0
Bentonite pellets
0.010" slotted
screen, 2" sch. 40
PVC
20/40 silica sand
3/8" bentonite chips
GRAVELLY CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist, dense, well-graded sand and
gravel, subrounded to subangular gravels up to 3". Gravel
(35%), sand (10%), fines (55%).
6" dry layer at 84' bgs.
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, dense, well-graded sand and gravel,
subrounded gravels up to 3". Gravel (50%), sand (30%), fines
(20%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity. Gravel (5%),
sand (10%), fines (85%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, dense, well-graded sand and gravel,
subrounded gravels up to 2". Gravel (50%), sand (30%), fines
(20%).
LEAN CLAY WITH SAND (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity. Gravel (0%),
sand (10%), fines (90%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-19
WATER LEVEL : 85.5 ft bgs
LOCATION : East High parking lot
END : 6/25/2018
ELEVATION : 4557.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/24/2018
SHEET 4 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7443109.99, E 1542791.39
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0 3/8" bentonite chips
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, dense, well-graded sand and gravel,
gravels up to 3". Gravel (50%), sand (20%), fines (30%).
Boring terminated at 110 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-19
WATER LEVEL : 85.5 ft bgs
LOCATION : East High parking lot
END : 6/25/2018
ELEVATION : 4557.4 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/24/2018
SHEET 5 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7443109.99, E 1542791.39
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Fill material
Fill material-native
contact
0.0
5.0
10.0
10.0
2 ft x 2 ft concrete
pad with 8" steel
vault
Concrete
Bentonite grout
2" schedule 40 PVC
GRAVELLY LEAN CLAY WITH SAND (CL)
dark brown, moist, firm, cobbles up to 6". Gravel (20%), sand
(25%), fines (55%).
Becomes darker, more fines, less gravel, no cobbles. Gravel
(15%), sand (25%), fines (60%).
SILT WITH SAND (ML)
brown, slightly moist, firm, low plasticity. Gravel (0%), sand
(10%), fines (90%).
SILTY SAND (SM)
brown to reddish brown, medium density, moist, poorly-graded
fine sand, thin (<1") clayey layers. Gravel (0%), sand (30%),
fines (70%).
SILTY GRAVEL WITH SAND (GM)
reddish brown, moist, very dense. Gravel (65%), sand (20%),
fines (15%).
12" boulder at 18.5' bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 1 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hard to drill
Very hard to drill
Very hard to drill
10.0
10.0
10.0
PID = 0.0
PID = 0.0
Bentonite grout
2" schedule 40 PVC
SILTY GRAVEL WITH SAND (GM)
reddish brown, moist. Gravel (60%), sand (20%), fines (20%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
dark brown, firm, moist, medium plasticity. Gravel (10%),
sand (10%), fines (80%).
GRAVELLY CLAY WITH SAND (CL)
dark brown, firm, moist, medium plasticity, subrounded
gravels up to 3". Gravel (35%), sand (10%), fines (55%).
SILTY GRAVEL WITH SAND (GM)
very dense, well-graded sand and gravel, slightly moist to dry,
occasional cobbles, gravels up to 3", subrounded gravels.
Gravel (60%), sand (20%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, very dense, well-graded gravel, medium
plasticity, dry, occasional cobbles, subrounded to subangular
gravels up to 3". Gravel (60%), sand (20%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 2 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hard to drill
10.0
10.0
10.0
PID = 2.6
PID = 0.0
PID = 1.5
Bentonite grout
2" schedule 40 PVC
LEAN CLAY WITH GRAVEL AND SAND (CL)
reddish brown, moist, firm, medium plasticity. Gravel (10%),
sand (10%), fines (80%).
SILTY GRAVEL WITH SAND (GM)
reddish brown, dry, very dense, well-graded sand and gravel,
subrounded to subangular gravels. Gravel (50%), sand
(25%), fines (25%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, moist, firm, medium plasticity. Gravel (10%),
sand (10%), fines (80%).
SILT WITH SAND (ML)
reddish brown, moist, firm, very low plasticity. Gravel (0%),
sand (10%), fines (90%).
SILTY GRAVEL WITH SAND (GM)
reddish brown, moist, very dense, well-graded gravels and
sand, subrounded to subangular. Gravel (40%), sand (30%),
fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, moist, very dense, well-graded gravels and
sand, subangular clasts. Gravel (40%), sand (30%), fines
(30%).
6" cemented layer at 73' bgs.
LEAN CLAY WITH SAND AND GRAVEL (CL)
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 3 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Gradational contact
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.3
PID = 0.0
Bentonite grout
2" schedule 40 PVC
reddish brown, moist, firm, medium plasticity, gravels up to 3".
Gravel (15%), sand (10%), fines (75%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, moist to dry, well-graded sand and gravel,
occasional cobbles. Gravel (50%), sand (25%), fines (25%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, very moist, medium to high plasticity, soft.
Gravel (10%), sand (10%), fines (80%).
SILTY SAND WITH GRAVEL (SM)
reddish brown, wet, dense, well-graded sand, poorly-graded
gravel. Gravel (15%), sand (70%), fines (15%).
6" clay layer at 85' bgs.
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, wet, soft, medium to high plasticity. Gravel
(10%), sand (5%), fines (85%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, wet, dense, well-graded, subrounded to
subangular gravels. Gravel (50%), sand (25%), fines (25%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, moist, stiff, medium plasticity. Gravel (10%),
sand (10%), fines (80%).
SILTY SAND WITH GRAVEL (SC-SM)
reddish brown, moist, dense, well-graded sand, subangular to
subrounded gravels up to 1.5". Gravel (20%), sand (40%),
fines (40%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, moist, dense, well-graded gravel, occasional
cobbles.
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, moist, firm, gravels up to 1". Gravel (20%),
sand (10%), fines (70%).
SILTY GRAVEL WITH SAND (GM)
reddish brown, dense, dry, well-graded, subangular to
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 4 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Visible water
No visible water
Gradational contact
Looks like river bottom
sediments.
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite grout
2" schedule 40 PVC
Bentonite pellets
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
subrounded. Gravel (50%), sand (30%), fines (20%).
SANDY SILT (ML)
reddish brown, wet, firm to soft, low plasticity. Gravel (0%),
sand (30%), fines (70%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown, very moist, soft to firm, rounded gravels.
Gravel (5%), sand (5%), fines (90%).
GRAVELLY CLAY WITH SAND (CL)
reddish brown, very moist, firm, subrounded gravels up to 2".
Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, wet, dense, well-graded sand and gravels,
gravels up to 2". Gravel (50%), sand (30%), fines (20%).
SILTY SAND WITH CLAY LAYERS (SM)
reddish brown, wet, dense, poorly-graded fine sand, clay
layers up to 6" thick. Gravel (0%), sand (55%), fines (45%).
SILTY SAND WITH GRAVEL (SM)
reddish brown, wet, loose, well-graded sand, rounded gravels.
Gravel (10%), sand (75), fines (15%).
SANDY LEAN CLAY WITH GRAVEL (CL)
reddish brown, moist to wet, firm, medium plasticity.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown, wet, dense, well-graded sand and gravel,
subrounded gravels. Gravel (50%), sand (15%), fines (35%).
Gravels become subrounded to subangular, elongated in
general, cobbles up to 4".
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 5 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Collected Shelby tube
from 130-132' bgs.
10.0
10.0
10.0
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
Gravels become smaller sized in general (up to 2") with
occasional cobble 3-4". Gravel (40%), sand (30%), fines
(30%).
LEAN CLAY (CL)
reddish-brown, very moist, firm, medium plasticity, occasional
small gravels (up to 0.75"). Gravel (5%), sand (5%), fines
(90%).
Gravels disappear. Gravel (0%), sand (5%), fines (95%).
Occasional sandy layers.
No sand layers.
Thin gravel layer.
Thin sandy, gravelly layer.
Boring terminated at 150 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20D
WATER LEVEL : 82.0 ft bgs
LOCATION : East High parking lot
END : 6/19/2018
ELEVATION : 4558.3 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/18/2018
SHEET 6 OF 6
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
130
135
140
145
150
COORDINATES : N 7442813.29, E 1542905.38
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hydrovac to 5' bgs.
Fill material
Fill material-native
contact
Gradational
0.0
5.0
10.0
10.0
PID = 0.1
PID = 0.3
PID = 0.1
PID = 0.3
PID = 0.9
2 ft x 2 ft concrete
pad with 8" steel
vault
Concrete
Bentonite grout
2" schedule 40 PVC
No recovery from 0-5' bgs.
SANDY LEAN CLAY WITH GRAVEL (CL)
dark brown (10YR 3/3), moist, stiff, medium plasticity,
occasional cobbles and debris. Gravel (20%), sand (25%),
fines (55%).
SANDY SILT (ML)
reddish brown (5YR 5/4), moist, firm, low to non-plastic, very
fine sand. Gravel (0%), sand (30%), fines (70%).
SILTY SAND (SM)
reddish brown (5YR 5/4), moist to dry, medium dense,
poorly-graded fine sand, occasional clay layers. Gravel (0%),
sand (55%), fines (45%).
LEAN CLAY (CL)
6" clay layer. Gravel (0%), sand (10%), fines (90%).
CLAYEY SAND WITH GRAVEL (CL)
reddish brown (5YR 5/4), dense, moist to dry, well-graded
sand and gravel, occasional cobbles. Gravel (25%), sand
(40%), fines (35%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), dense, moist to dry, well-graded
sand and gravel, occasional cobbles, subrounded to
subangular gravels. Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20S
WATER LEVEL : 81.0 ft bgs
LOCATION : East High parking lot
END : 6/21/2018
ELEVATION : 4558.7 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/21/2018
SHEET 1 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442822.79, E 1542905.83
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Slightly cemented from
34-36' bgs
Slightly cemented from
45-46' bgs
10.0
10.0
10.0
PID = 2.0
PID = 3.7
PID = 1.3
PID = 0.4
PID = 0.5
PID = 0.1
PID = 0.1
PID = 0.1
PID = 0.7
PID = 6.4
PID = 4.3
Bentonite grout
2" schedule 40 PVC
SILTY SAND (SM)
reddish brown (5YR 5/4), dry, medium dense, poorly-graded.
Gravel (0%), sand (65%), fines (35%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), moist, very dense, well-graded sand
and gravel, occasional cobbles. Gravel (50%), sand (25%),
fines (25%).
Color change to pale brown (10YR 6/3).
Color change to reddish brown (5YR 5/4). Becomes dry.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20S
WATER LEVEL : 81.0 ft bgs
LOCATION : East High parking lot
END : 6/21/2018
ELEVATION : 4558.7 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/21/2018
SHEET 2 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442822.79, E 1542905.83
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Very hard to drill
10.0
10.0
10.0
PID = 2.2
PID = 3.8
PID = 2.8
PID = 1.7
PID = 0.9
PID = 1.3
PID = 0.5
PID = 0.7
PID = 1.4
PID = 1.2
Bentonite grout
2" schedule 40 PVC
Bentonite pellets
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (5YR 5/4), dry, stiff, medium plasticity. Gravel
(10%), sand (10%), fines (80%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), dry, very dense, well graded sand
and gravel, subangular gravels up to 3". Gravel (50%), sand
(30%), fines (20%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (5YR 5/4), moist, firm, medium plasticity.
Gravel (10%), sand (10%), fines (80%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), moist, very dense, well graded,
subangular gravels up to 3". Gravel (50%), sand (25%), fines
(25%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (5YR 5/4), moist, firm, medium plasticity.
Gravel (10%), sand (10%), fines (80%).
12" boulder. Gravel (100%).
GRAVELLY CLAY WITH SAND (CL)
reddish brown (5YR 5/4), moist, firm, medium plasticity.
Gravel (20%), sand (15%), fines (65%).
SILTY GRAVEL WIH SAND (GM)
reddish brown (5YR 5/4), moist to dry, very dense, well
graded sand and gravel, occasional cobbles. Gravel (50%),
sand (25%), fines (25%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), moist to dry, very dense, well
graded sand and gravel, subangular to subrounded gravels up
to 3". Gravel (60%), sand (25%), fines (15%).
6" cobble at 71' bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20S
WATER LEVEL : 81.0 ft bgs
LOCATION : East High parking lot
END : 6/21/2018
ELEVATION : 4558.7 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/21/2018
SHEET 3 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442822.79, E 1542905.83
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
PID = 0.7
PID = 1.2
PID = 0.2
PID = 0.3
PID = 0.4
PID = 0.8
Bentonite pellets
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
6" cobble at 75.5' bgs.
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), loose, wet, well-graded sand and gravel,
subrounded gravels. Gravel (20%), sand (65%), fines (15%).
SILTY SAND WITH SILT LAYERS (SM)
brown (10YR 4/3), loose, wet, poorly-graded fine sand,
non-plastic, silt layers up to 4". Gravel (0%), sand (60%),
fines (40%).
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), loose, wet, well-graded sand and gravels,
subrounded gravels. Gravel (20%), sand (65%), fines (15%).
SANDY LEAN CLAY WITH GRAVEL (CL)
brown (10YR 4/3), firm, wet, medium to high plasticity. Gravel
(5%), sand (40%), fines (55%).
CLAYEY GRAVEL WITH SAND (GC)
wet at top, moist at bottom, dense, well-graded sand and
gravel, subrounded to subangular gravels. Gravel (60%),
sand (20%), fines (20%).
Drilled to 90.8 during cleanout. This was not sampled or
logged.
Boring terminated at 90.8 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-20S
WATER LEVEL : 81.0 ft bgs
LOCATION : East High parking lot
END : 6/21/2018
ELEVATION : 4558.7 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 6/21/2018
SHEET 4 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7442822.79, E 1542905.83
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 3' bgs.
0.0
7.0
9.0
10.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
No recovery from 0-3' bgs.
LEAN CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist, firm, medium-low plasticity. Gravel
(0%), sand (15%), fines (85%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), moist, medium dense, well-graded sand
and gravel, occasional cobbles, gravels up to 3". Gravel
(60%), sand (20%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), moist, dense, well-graded sand and
gravel, subrounded gravels, some cobbles. Gravel (50%),
sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), moist, medium dense, well-graded sand
and gravel, occasional cobbles, gravels up to 3". Gravel
(60%), sand (20%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), moist, dense, well-graded sand and
gravel, gravel up to 2", subrounded gravels. Gravel (50%),
sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), dry, dense, well-graded sand and gravel.
Gravel (50%), sand (25%), fines (25%).
GRAVELLY CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist, firm, medium plasticity,
poorly-graded gravels, gravels up to 3/4". Gravel (20%), sand
(10%), fines (70%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-21
WATER LEVEL : 70.0 ft bgs
LOCATION : 800 South 1400 East
END : 7/12/2018
ELEVATION : 4563.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/11/2018
SHEET 1 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7442343.27, E 1543130.2
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
5.0
5.0
10.0
PID = 0.0
PID = 0.0
PID = 0.1
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
LEAN CLAY (CL)
brown (7.5YR 5/4), moist, firm, medium plasticity. Gravel
(0%), sand (5%), fines (95)%.
Increasing gravels. Gravel (10%), sand (5%), fines (85%).
Cemented clay from 34.5-35' bgs.
LEAN CLAY WITH SAND AND GRAVEL (CL)
brown (7.5YR 5/4), moist, firm, medium plasticity, gravels up
to 1". Gravel (10%), sand (10%), fines (80%).
SILTY SAND WITH GRAVEL (SM)
brown (7.5YR 4/4), dry, very dense, well-graded sand,
poorly-graded gravel, gravels up to 1".
GRAVELLY CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist, firm, medium plasticity,
poorly-graded gravels, gravel up to 1". Gravel (20%), sand
(10%), fines (70%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/4), moist, very dense, well-graded sand and
gravel, gravels up to 3", occasional cobbles, subangular
gravels. Gravel (50%), sand (35%), fines (15%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-21
WATER LEVEL : 70.0 ft bgs
LOCATION : 800 South 1400 East
END : 7/12/2018
ELEVATION : 4563.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/11/2018
SHEET 2 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7442343.27, E 1543130.2
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hard to drill for the
entire 50-60' bgs run.
Hard to drill for the
entire 60-70' bgs run.
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
3/8" bentonite chips
Increased fines. Becomes moist to dry. Gravel (40%), sand
(30%), fines (30%).
10" clay layer at 55' bgs.
GRAVELLY CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist to dry, stiff to very stiff, medium
plasticity, poorly-graded gravel (pea gravel). Gravel (25%),
sand (10%), fines (65%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 5/3), dry, very dense, well-graded sand and
gravel, subangular gravels, gravel up to 2". Gravel (40%),
sand (30%), fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), moist, very dense, poorly-graded gravels
up to 1". Gravel (40%), sand (25%), fines (35%).
LEAN CLAY (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity. Gravel (0%),
sand (5%), fines (95%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-21
WATER LEVEL : 70.0 ft bgs
LOCATION : 800 South 1400 East
END : 7/12/2018
ELEVATION : 4563.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/11/2018
SHEET 3 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7442343.27, E 1543130.2
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
PID = 0.0
Slough
Becomes moist, no standing water.
Becomes moist to dry.
SILTY SAND (SM)
brown (7.5YR 4/4), moist to wet.
Boring terminated at 80 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-21
WATER LEVEL : 70.0 ft bgs
LOCATION : 800 South 1400 East
END : 7/12/2018
ELEVATION : 4563.5 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/11/2018
SHEET 4 OF 4
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7442343.27, E 1543130.2
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Hand auger to 1' bgs.
Hard to drill.
Hard to drill.
0.0
4.0
4.0
10.0
5.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
3 ft x 3 ft concrete
pad with 8" steel
vault
Concrete
Bentonite pellets
2" schedule 40 PVC
No recovery from 0-1' bgs.
SILTY GRAVEL WITH SAND (GM)
dark yellowish brown (10YR 4/4), dry, very dense, frequent
cobbles. Gravel (45%), sand (40%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), dry, very dense,
well-graded sand and gravel, occasional cobbles, subrounded
to subangular, gravels up to 3". Gravel (50%), sand (30%),
fines (20%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm,
medium-low plasticity. Gravel (15%), sand (10%), fines (75%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), moist, dense, well-graded sand and gravel,
gravel up to 3", occasional cobbles, subrounded to subangular
gravels. Gravel (60%), sand (25%), fines (15%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-22
WATER LEVEL : 69.0 ft bgs
LOCATION : Parkstrip off 900 S. and 1400 E.
END : 7/10/2018
ELEVATION : 4562.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/9/2018
SHEET 1 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7441969.25, E 1543122.49
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
5.0
10.0
10.0
PID = 0.0
PID = 0.8
PID = 0.0
PID = 0.0
PID = 0.0
Bentonite pellets
2" schedule 40 PVC
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, dense,
well-graded sand and gravel, gravels up to 3", subrounded to
subangular gravels. Gravel (40%), sand (30%), fines (30%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm,
medium plasticity. Gravel (5%), sand (5%), fines (90%).
INTERBEDDED SILTY SAND AND LEAN CLAY
Sand: Silty sand with gravel (SM), reddish brown (5YR 4/4),
moist, dense, well-graded sand, poorly-graded gravel, gravels
up to 3/4". Gravel (20%), sand (50%), fines (30%).
Clay: Lean clay (CL), reddish brown, (5YR 4/4), moist, firm,
medium to low plasticity. Gravel (5%), sand (5%), fines
(90%).
Sand and clay layers of 3-6".
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), moist to dry, dense, well-graded sand,
poorly-graded gravel, gravels up to 3/4". Gravel (20%), sand
(50%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-22
WATER LEVEL : 69.0 ft bgs
LOCATION : Parkstrip off 900 S. and 1400 E.
END : 7/10/2018
ELEVATION : 4562.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/9/2018
SHEET 2 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7441969.25, E 1543122.49
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
10.0
PID = 0.0
PID = 0.0
PID = 0.8
Bentonite pellets
2" schedule 40 PVC
20/40 silica sand
0.010" slotted
screen, 2" sch. 40
PVC
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm,
medium plasticity. Gravel (5%), sand (5%), fines (90%).
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), dry, dense, well-graded sand and gravel,
gravels up to 3". Gravel (35%), sand (50%), fines (15%).
GRAVELLY CLAY WITH SAND (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm,
medium plasticity, subrounded gravels up to 3". Gravel (25%),
sand (10%), fines (65%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, dense,
well-graded sand and gravel.
GRAVELLY CLAY WITH SAND (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, firm,
medium plasticity. Gravel (20%), sand (10%), fines (70%).
7" clayey gravel layer at 62.5' bgs.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), dry, very dense, well-graded sand
and gravel, gravels up to 3", subrounded to subangular
gravels. Gravel (50%), sand (20%), fines (30%).
Becomes wet at 69' bgs.
CLAYEY SAND WITH GRAVEL (SC)
reddish brown (5YR 5/4), wet, dense, well-graded gravel,
gravels up to 2", subrounded to subangular gravels. Gravel
(30%), sand (60%), fines (10%).
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-22
WATER LEVEL : 69.0 ft bgs
LOCATION : Parkstrip off 900 S. and 1400 E.
END : 7/10/2018
ELEVATION : 4562.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/9/2018
SHEET 3 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7441969.25, E 1543122.49
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
No water in the core at
75' bgs.
Lost the core during the
80-90' bgs run.
Redrilled the run. The
core is disturbed from
being redrilled.
10.0
9.0
10.0
PID = 1.3
PID = 0.0
PID = 0.0
PID = 0.0
PID = 0.0
PID = 3.2
PID = 0.0
PID = 0.0
3/8" bentonite chips
4" clay layer at 75' bgs. Becomes moist. Clay increases.
Gravel (30%), sand (50%), fines (20%).
Becomes dry at 77' bgs. Gravels increase. Gravel (40%),
sand (50%), fines (10%).
2" gravel layer at 79' bgs.
LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, firm to stiff, medium
plasticity. Gravel (0%), sand (0%), fines (100%).
CLAYEY SAND WITH GRAVEL (SC)
reddish brown (5YR 5/4), moist to wet, well-graded sand and
gravel, subrounded gravels, gravels up to 3", some cobbles.
Gravel (20%), sand (60%), fines (20%).
GRAVELLY LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, stiff, poorly-graded gravel,
gravels up to 1". Gravel (30%), sand (0%), fines (70%).
LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, firm, low plasticity. Gravel
(10%), sand (10%), fines (80%).
SANDY SILT (ML)
reddish brown (5YR 5/4), moist, firm, low to nonplastic.
Gravel (10%), sand (30%), fines (60%).
GRAVELLY LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), moist, very stiff to hard, well-graded
subangular gravels. Gravel (40%), sand (10%), fines (50%).
Becomes dry at 98.5' bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-22
WATER LEVEL : 69.0 ft bgs
LOCATION : Parkstrip off 900 S. and 1400 E.
END : 7/10/2018
ELEVATION : 4562.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/9/2018
SHEET 4 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7441969.25, E 1543122.49
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
10.0
10.0
PID = 0.0
PID = 2.4
PID = 3.2
PID = 0.0
3/8" bentonite chips
GRAVELLY LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), dry, medium plasticity, stiff,
well-graded gravel, subangular gravel, gravels up to 2". Gravel
(30%), sand (15%), fines (55%).
Becomes moist at 102' bgs.
CLAYEY SAND WITH GRAVEL (SC)
reddish brown (5YR 5/4), wet, poorly-graded subrounded
gravels, gravels up to 1". Gravel (15%), sand (40%), fines
(45%).
GRAVELLY LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), moist, firm, medium plasticity,
well-graded subangular gravels up to 1". Gravel (30%), sand
(15%), fines (55%).
CLAYEY GRAVEL (GC)
light brown (7.5YR 6/3), wet, firm, well-graded subangular
gravels, gravels up to 3", medium plasticity clay. Gravel
(50%), sand (10%), fines (40%).
LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, firm, medium-high plasticity.
Gravel (0%), sand (5%), fines (95%).
Boring terminated at 120 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Holt, Terrasonic
BORING NUMBER:
MW-22
WATER LEVEL : 69.0 ft bgs
LOCATION : Parkstrip off 900 S. and 1400 E.
END : 7/10/2018
ELEVATION : 4562.9 ft msl (ground surface)
LOGGER : J. Olsen
PROJECT NUMBER:
START : 7/9/2018
SHEET 5 OF 5
DRILLING METHOD AND EQUIPMENT : Sonic 4x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7441969.25, E 1543122.49
PROJECT : OU-2 Remedial Investigation (Phase 1)
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

S
H
A
L
L
O
W

W
E
L
L

P
R
O
J
E
C
T
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
EN
V
I
R
O
N
M
E
N
T
A
L
DA
T
A
(P
I
D

=

p
p
m
)
WELL DETAILS
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.1 PPM
0.0
2.0
4.0
3.0
9.0
Hydrovac the boring to 7 feet bgs. No recovery.
CLAYEY GRAVEL WITH SAND (GC)
light reddish brown / light brown (5YR 6/4), moist, dense, well-graded sand and gravel.
Subrounded to subangular gravels. Gravel (40%), sand (30%), fines (30%).
Large cobble from 9-10 feet bgs.
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), slightly moist, very dense, well-graded sand and
gravel. Subrounded to subangular gravels. Frequent cobbles. Gravel (50%), sand (30%),
fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravel
Subangular to subrounded gravels. Frequent cobbles. Gravel (50%), sand (30%), fines
(20%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravel.
Subangular gravels. Some cobbles. Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravels.
Subangular gravels. Occasional to frequent cobbles. Gravel (50%), sand (30%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 1 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
2.0
10.0
10.0
10.0
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravel.
Subrounded to subangular gravels. Frequent cobbles. Gravel (50%), sand (30%), fines
(20%).
POORLY GRADED SAND WITH GRAVEL AND SILT (SP)
dark yellowish brown (10YR 4/4), slightly moist, medium dense. Gravel (10%), sand (80%),
fines (10%).
SANDY SILT WITH GRAVEL (ML)
dark yellowish brown (10YR 4/4), moist, firm, non-plastic to low plasticity fines, well graded
sand, poorly graded fine gravel. Gravel (10%), sand (30%), fines (60%).
SILTY GRAVEL WITH SAND (GM)
dark yellowish brown (10YR 4/4), moist, dense, well-graded sand and gravel. Subrounded to
subangular gravels. Some cobbles. Gravel (45%), sand (40%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
dark yellowish brown (10YR 4/4), very moist, very dense, well-graded sand and gravel. Some
cobbles. Gravel (40%), sand (15%), fines (45%).
SILTY GRAVEL WITH SAND (GM)
dark yellowish brown (10YR 4/4), moist, very dense, well-graded sand and gravel. Some
cobbles. Gravel (50%), sand (35%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
dark reddish gray (5YR 4/2), moist, very dense, well-graded sand and gravel. Gravel (40%),
sand (15%), fines (45%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, medium dense, fine-grained sand.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 2 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.1 PPM
PID = 0.1 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
10.0
10.0
9.0
Gravel (45%), sand (40%), fines (15%).
SANDY LEAN CLAY WITH GRAVEL (CL)
reddish brown (5YR 5/4), moist, medium plasticity, medium stiff. Gravel (15%), sand (25%),
fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish red / light brown (5YR 5/6), moist, dense, well-graded gravel. Gravel (50%), sand
(30%), fines (20%).
SILTY SAND (SM)
reddish brown (5YR 5/4), moist, medium dense, well-graded sand. Gravel (5%), sand (75%),
fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish red / light brown (5YR 5/6), moist, dense, medium plasticity clay, well-graded sand
and gravel. Gravel (40%), sand (15%), fines (45%)
SILTY GRAVEL WITH SAND (GM)
reddish brown (2.5YR 4/4), moist, dense, well-graded sand and gravel. Subround to
subangular gravels. Gravels and cobbles up to 4" in diameter. The percentage of gravels
decreases with depth. Gravel (50%), sand (30%), fines (20%) changing to gravel (50%), sand
(35%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand, gravel, and
cobbles. Gravels and cobbles up to 9". Gravel (50%), sand (30%), fines (20%).
SILTY CLAYEY SAND WITH GRAVEL (SC-SM)
reddish brown / moderate brown (5YR 4/4), moist, dense, well-graded sand, gravel and
cobbles. Cobbles up to 6". Gravel (20%), sand (40%), fines (40%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravels.
Cobbles up to 4". Gravel (50%), sand (30%), fines (20%).
SANDY SILTY CLAY WITH GRAVEL (CL-ML)
reddish brown / moderate brown (5YR 4/4), moist, very stiff, low plasticity fines. Gravels up to
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 3 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
9.0
11.0
7.0
3.0
10.0
2". Gravel (15%), sand (30%), fines (55%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravel.
Occasional cobbles. Subrounded gravels and cobbles. Cobbles up to 6". Gravel (40%), sand
(20%), fines (40%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand and gravel.
Subangular to subrounded gravel. Occasional cobbles up to 6". Gravel (60%), sand (20%),
fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, very dense, well-graded sand,
poorly-graded fine gravel. Gravel up to 1". Subrounded gravels. Gravel (50%), sand (20%),
fines (30%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), slightly moist, very dense, well-graded sand and
gravel. Frequent cobbles up to 4". Gravel (50%), sand (35%), fines (15%).
SILTY SAND WITH GRAVEL (SM)
reddish brown / moderate brown (5YR 4/4), slightly moist, very dense, well-graded sand and
gravel. Gravel (25%), sand (50%), fines (25%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, medium dense, well-graded gravel and
sand. Gravels up to 3", cobbles up to 4". Subrounded to subangular gravels. Gravel (50%),
sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown / light brown (5YR 6/4), moist, medium dense, well-graded sand and
gravels. Gravels up to 3". Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
light reddish brown / light brown (5YR 6/4), moist, dense, well-graded sand and gravel.
Cobbles up to 9". Gravel (50%), sand (30%), fines (20%).
6" layer of silty gravel with sand (GM) at 91' bgs.
Cored through a quartz cobble greater than 9" in diameter at 94' bgs.
Wet at 94.5' bgs on large cobbles. Moisture sample collected.
SILTY GRAVEL WITH SAND (GM)
light reddish brown / light brown (5YR 6/4), moist, dense, well-graded sand and gravel.
Cobbles up to 8". Subrounded to subangular gravels. Gravel (60%), sand (25%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish red (5YR 4/6), moist, dense, well-graded sand and gravel. Cobbles up to 4". Low
plasticity fines. Gravel (60%), sand (20%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 4 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.2PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
10.0
10.0
10.0
SILTY GRAVEL WITH SAND (GM)
light reddish brown / light brown (5YR 6/4), moist, dense, well-graded sand and gravel.
Gravels up to 3". Subangular gravels. Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
red (2.5YR 4/6), dense, moist, well-graded sand and gravel. Subrounded to subangular
gravels. Cobbles up to 5". Low plasticity fines. Gravel (60%), sand (20%), fines (20%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown / light brown (5YR 6/4), moist, very dense, well-graded sand and gravel,
fine to medium grained sand. Subrounded to subangular gravels. Gravel (50%), sand (30%),
fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
red (2.5YR 4/6), moist, dense, poorly-graded fine-grained sand and fine-grained gravel.
Gravels up to 1". Subrounded to subangular gravels. Gravel (50%), sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown / light brown (5YR 6/4), moist, dense, well-graded gravel and sand. Fine to
medium-grained sand. Subrounded to subangular gravel. Gravel (50%), sand (30%), fine
(20%).
CLAYEY GRAVEL WITH SAND (GC)
red (2.5YR 4/6), moist, dense, well-graded sand, poorly-graded gravel. Gravels up to 2".
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 5 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
10.0
10.0
9.0
11.0
Subrounded to subangular gravels. Gravel (40%), sand (25%), fines (35%).
SILTY GRAVEL WITH SAND (GM)
reddish brown (5YR 5/3), moist, dense, well-graded sand and gravel. Subrounded to
subangular gravels. Gravel (40%), sand (35%), fines (25%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 5/4), moist, dense, well-graded sand and gravel. Gravels up to 2".
Subrounded to subangular gravels. Gravel (50%), sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown (2.5YR 6/3), moist, dense, well-graded sand and gravel. Cobbles up to 8".
Subrounded to subangular gravel and cobbles. Gravel (50%), sand (20%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 6 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
130
135
140
145
150
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
Sandstone gravel at 155' bgs.
PID = 0.1 PPM
PID = 0.5 PPM
11.0
10.0
10.0
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 5/4), moist, dense, well-graded sand and gravel. Fine to medium
grained sand. Gravels up to 3". Gravel (50%), sand (15%), fines (35%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown (2.5YR 6/3), moist, dense, well-graded sand, poorly-graded fine gravel.
Gravel up to 1". Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 5/4), wet, dense, well-graded gravel and sand. Gravels up to 3".
Gravel (50%), sand (15%), fines (35%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown (2.5YR 6/3), moist, dense, well-graded sand and gravel. Fine to medium
grained sand. Cobbles up to 5". Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 5/4), moist to wet, dense, well-graded gravel and sand.
Cobbles/boulders larger than 8" core barrel. Gravel (50%), sand (15%), fines (35%).
SILTY GRAVEL WITH SAND (GM)
light reddish brown (2.5YR 6/3), moist, dense, well-graded sand and gravel. Fine to medium
grained sand. Cobbles up to 4". Gravel (50%), sand (30%), fines (20%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 7 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
155
160
165
170
175
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.4 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Drilled from 187-197' bgs but lost the
core coming up. Redrilled with an auger
bit to get the core. Core is mixed up
from redrilling.
Measured static water level at 186.7'
bgs.
The core from 187-210' bgs has a very
high water content.
PID = 0.0 PPM
Collect push-ahead groundwater sample
at 192' bgs.
PID = 0.0 PPM
Very hard to drill from 197-202' bgs.
10.0
10.0
8.0
5.0
GRAVELLY LEAN CLAY WITH SAND (CL)
brown (7.5YR 4/4), very moist (almost wet), firm, medium plasticity. Well-graded sand and
gravel. Subrounded gravel and cobbles. Frequent cobbles up to 6". Gravel (35%), sand
(10%), fines (55%).
SILTY GRAVEL WITH SAND (GM)
dark reddish brown / moderate brown (5YR 3/4), moist, very dense, well-graded sand and
gravel. Occasional cobbles up to 5". Subrounded to subangular gravel and cobbles. Gravel
(65%), sand (20%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
dark reddish brown / moderate brown (5YR 3/4), moist, very dense, well-graded sand and
gravel. Gravel up to 3". Subrounded to subangular gravel. Gravel (40%), sand (30%), fines
(30%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), wet, loose, well-graded sand and gravel. Gravels
up to 3". Subrounded to subangular gravels. Gravel (50%), sand (30%), fined (20%).
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), wet, very dense, well-graded sand, poorly-graded gravels up to 1". Gravel
(20%), sand (60%), fines (20).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobble up to 4".
Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 8 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
180
185
190
195
200
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Very hard to drill from 202-207' bgs.
PID = 0.0 PPM
PID = 0.0 PPM
The soil is still saturated with water but is
less "soupy" with a lower water content
beginning at 210' bgs.
PID = 0.1 PPM
Driller stated that he was only able to
drill 2 feet from 217-219' bgs because of
how hard it was to drill.
Collect push-ahead groundwater sample
at 217.5' bgs.
PID = 0.0 PPM
Drilled from 219-222' bgs but lost the
core. Install the auger bit to go back in to
get the core.
Drilled to 224 and initially had no
recovery. Had to redrill again to get core
5.0
5.0
10.0
2.0
5.0
12.0
CLAYEY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
6". Subrounded gravels and cobbles. Gravel (50%), sand (25%), fines (25%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
4". Gravel (50%), sand (25%), fines (25%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
6". Gravel (50%), sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
6". Gravel (50%), sand (35%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
5". Gravel (50%), sand (20%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
brown (10YR 4/3), wet, very dense, well-graded sand and gravel. Frequent cobbles up to 4".
Subrounded gravel and cobbles. Gravel (60%), sand (20%), fines (20%).
Cobbles become less frequent.
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/4), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 9 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
205
210
215
220
225
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
up. The driller stated that he thought he
was drilling bedrock because it was so
hard to drill.
No recovery, had to redrill.
There was water in the core barrel
during the 236-237' bgs run and it
caused the core sample bag to blow out
into the hopper. No recovery from
236-237' bgs.
Collect push-ahead groundwater sample
at 247'.
12.0
0.0
10.0
3.0
5". Subrounded to subangular gravels. Gravel (50%), sand (20%), fines (30%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
brown (7.5YR 5/4), wet, firm, low plasticity. Gravel (10%), sand (10%), fines (80%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/4), wet, very dense, well-graded sand, poorly-graded fine gravel up to 1".
Gravel (50%), sand (30%), fines (20%).
SANDY, SILTY CLAY WITH GRAVEL (CL-ML)
reddish brown (2.5YR 4/4), wet, firm, low plasticity fines. Occasional siltstone with calcite
inclusion cobbles up to 4". Gravel (15%), sand (30%), fines (55%).
SANDY SILTY CLAY (CL-ML)
reddish brown (2.5YR 4/4), wet, firm, low plasticity fines. Gravel (5%), sand (45%), fines
(50%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 10 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
230
235
240
245
250
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.1 PPM
PID = 0.3 PPM.
Collect push-ahead groundwater sample
at 267' bgs.
PID = 0.3 PPM
12.0
5.0
10.0
LEAN CLAY (CL)
reddish brown (2.5YR 4/4), moist-wet, firm to stiff, low plasticity. Gravel (5%), sand 10%),
fines (85%).
Trace organic fines at 251' bgs.
SANDY, SILTY CLAY (CL-ML)
reddish brown (2.5YR 4/4), moist to wet, firm, low-medium plasticity. Gravel (10%), sand
(30%), fines (60%).
SILTY, CLAYEY GRAVEL WITH SAND (GC)
reddish brown (2.5YR 4/4), wet, dense. Poorly-graded fine gravel, poorly-graded fine sand.
Gravel (55%), sand (20%), fines (25%). Subangular gravels.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 11 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
255
260
265
270
275
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.3 PPM
PID = 1.1 PPM
PID = 0.3 PPM
PID = 0.7 PPM
PID = 0.5 PPM
PID = 0.8 PPM
PID = 0.5 PPM. Collect push-ahead
groundwater sample at 287' bgs.
PID = 0.1 PPM
PID = 0.1 PPM
PID = 0.3 PPM
10.0
6.0
4.0
9.0
11.0
Gravel size increases up to 3" with depth.
Gravel and moisture content increase with depth. Gravel (60%), sand (20%), fines (20%).
High moisture content, standing water.
SANDY, SILTY CLAY (CL-ML)
reddish brown (2.5YR 5/3), wet, soft to medium stiff, low plasticity. Gravel (0%), sand (31%),
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 12 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
280
285
290
295
300
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.1 PPM
PID = 0.2 PPM
Collect push-ahead groundwater sample
at 307' bgs.
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
11.0
5.0
2.0
5.0
5.0
fines (69%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/4), wet, dense, well-graded sand and gravel. Gravel up to 3". Gravel (70%),
sand (15%), fines (15%).
The percentage of fines decreases with depth.
7" limestone cobble. Very hard drilling. 312-313' bgs was lost from the barrel, non-cohesive
gravels.
WELL GRADED GRAVEL WITH SILT AND SAND (GW)
brown (7.5YR 5/4), wet, dense, well-graded sand. Gravels up to 3". Gravel (75%), sand
(15%), fines (10%).
SANDY LEAN CLAY WITH GRAVEL (CL)
brown (7.5YR 5/4), moist-wet, firm. Gravel size is pea gravel. Gravel (15%), sand (20%), fines
(65%).
SILTY CLAYEY GRAVEL WITH SAND (GC)
light reddish brown (2.5YR 6/4), wet, dense, gravels up to 2". Gravel (70%), sand (15%), fines
(15%).
SANDY, SILTY CLAY (CL-ML)
brown (7.5YR 5/4), wet, soft-medium stiff, low plasticity fines. Increase gravel content with
depth. Gravel (10%), sand (25%), fines (65%).
1" thin, poorly-graded fine sand layer at 323' bgs.
SILTY CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/3), moist, dense, poorly graded sand. Gravel (60%), sand (20%), fines
(20%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 13 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
305
310
315
320
325
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.1 PPM
Collect push-ahead groundwater sample
at 327' bgs.
PID = 0.2 PPM
Doesn't appear saturated from 338-340'
bgs.
PID = 0.1 PPM
PID = 0.0 PPM
Collect push-ahead groundwater sample
at 347' bgs.
5.0
4.0
4.0
7.0
2.0
8.0
Becomes wet at 334' bgs. Cobbles up to 4".
Decreased moisture content in 3" thick coarse material.
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), very moist, to wet, very dense, well-graded sand and gravels. Subrounded
gravels up to 3". Medium plasticity fines. Gravel (40%), sand (30%), fines (40%).
Becomes wet. Very high water content through most of the 340-347' run.
GRAVELLY CLAY WITH SAND (CL)
reddish brown / moderate brown (5YR 4/4), moist, firm, medium plasticity. Well-graded
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 14 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
330
335
340
345
350
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.1 PPM
PID = 0.2 PPM
Highly saturated. Drill lost the core and
redrilled with an auger bit to recover the
core.
PID = 0.0 PPM
PID = 0.0 PPM
Collect push-ahead groundwater sample
at 367' bgs.
PID = 0.0 PPM
8.0
5.0
5.0
8.0
gravels up to 3". Subrounded to subangular gravels. Gravel (25%), sand (15%), fines (60%).
Becomes slightly moist and stiff at 353' bgs.
Becomes dry at 355' bgs.
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/4), wet, very dense, well-graded sand and gravel. Subrounded to subangular
gravels. Gravel (40%), sand (30%), fines (30%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 5/4), wet, very dense, well-graded sand and gravel. Occasional cobbles up to
4". Gravel (40%), sand (30%), fines (30%).
GRAVELLY LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), very moist to wet, firm, medium plasticity. Fine-grained subrounded
gravels. Gravel (25%), sand (25%), fines (50%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, very dense, well-graded sand and gravel,
subrounded gravels. Gravel (40%), sand (30%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 15 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
355
360
365
370
375
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collect push-ahead groundwater sample
at 387' bgs.
PID = 0.0 PPM
PID = 0.0 PPM
2.0
5.0
5.0
5.0
5.0
5.0
CLAYEY SAND WITH GRAVEL (SC)
reddish brown / moderate brown (5YR 4/4), wet, very dense, well graded sand and gravel,
subrounded to subangular gravels. Gravel (30%), sand (40%), fines (30%).
WELL GRADED GRAVEL WITH SILT AND SAND (GW)
brown (7.5YR 4/4), wet, very dense, subangular to subrounded gravels. Gravel (70%), sand
(20%), fines (10%).
SILTY SAND WITH GRAVEL (SM)
brown (7.5YR 4/4), wet, very dense, well graded sand. Gravel (10%), sand (70%), fines
(20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, very dense, well graded sand and gravel. Gravel (40%), sand (30%),
fines (40%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), wet, very dense, well graded sand and gravel. Subrounded to subangular
gravel. Gravel (50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, very dense, well graded sand and gravel. Subrounded to subangular
gravel. Gravel (50%), sand (30%), fines (20%).
Percent fines increase and gravel decrease
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 16 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
380
385
390
395
400
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Collect push-ahead groundwater sample
at 405' bgs.
5.0
Boring terminated at 407 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-03R
WATER LEVEL : 187.0 ft bgs
LOCATION : Southwest Side of VA Campus
END : 11/7/2018
ELEVATION : 4698.7 ft msl (ground surface)
LOGGER : R. Hamilton/J.Olsen
PROJECT NUMBER:
START : 10/8/2018
SHEET 17 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
405
410
415
420
425
COORDINATES : N 7444184.97, E 1545418.12
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Unable to hand auger past 2' bgs.
Fill (road base).
PID = 0.0 PPM
PID = 0.1 PPM
PID = 0.0 PPM
0.0
5.0
10.0
10.0
Hand auger to 2' bgs.
SILTY SAND WITH GRAVEL (SM)
brown (10YR 4/3), dry, dense, well-graded sand and gravel. Gravel (20%), sand (50%), fines
(30%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), dry, dense, well-graded sand and gravel, frequent
cobbles up to 6", subrounded to subangular gravels and cobbles. Gravel (50%), sand (30%),
fines (20%).
Cobbles become less frequent (occasional cobbles).
6" clayey gravel layer, moist around the clay.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 1 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
5
10
15
20
25
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Drilled from 27-37' bgs, but the bottom 4'
fell out of the core barrel.
PID = 0.1 PPM
PID = 0.0 PPM
PID = 0.6 PPM. PID readings from
39-55' bgs are possibly from heat and
moisture.
PID = 1.3 PPM
PID = 1.0 PPM
PID = 0.4 PPM
PID = 0.2 PPM
10.0
6.0
4.0
10.0
10.0
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), moist, very dense, well-graded sand and gravel, occasional cobbles up to
6", medium plasticity fines. Gravel (40%), sand (30%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
reddish brown / moderate brown (5YR 4/4), moist, dense, well-graded sand and gravel,
occasional cobbles greater than 6", subrounded to subangular gravels and cobbles. Gravel
(50%), sand (30%), fines (20%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/3), moist, dense, well-graded sand and gravel, subangular to angular gravels.
Gravel (40%), sand (30%), fines (30%).
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/3), moist, dense, well-graded sand and gravel, occasional to frequent
cobbles, subrounded to subangular gravels and cobbles. Gravel (50%), sand (30%), fines
(20%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 2 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
30
35
40
45
50
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.4 PPM
PID = 0.6 PPM
Drilled from 57-67' bgs. Lost 5' of the
core. Redrilled with an auger bit to 72'
bgs. Recovered 5' of core. Missing 5' of
core from between 57-72' bgs.
PID = 0.0 PPM
Tagged the top of the water table at 61.2'
bgs.
PID = 0.0 PPM
Collected groundwater sample at 67'.
PID = 0.0 PPM
10.0
10.0
5.0
15.0
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/3), moist, dense, well-graded sand and gravel, infrequent cobbles,
subrounded to subangular gravels. Gravel (50%), sand (25%), fines (25%).
Becomes wet.
SANDY LEAN CLAY WITH GRAVEL (CL)
yellowish red / light brown (5YR 5/6), wet, firm, medium plasticity. Gravel (10%), sand (25%),
fines (65%).
CLAYEY SAND WITH GRAVEL (SC)
brown (7.5YR 4/3), wet, dense, well-graded sand, poorly-graded fine gravel. Gravel (30%),
sand (40%), fines (30%).
No recovery.
SANDY LEAN CLAY (CL)
yellowish red / light brown (5YR 5/6), wet, firm, medium plasticity. Gravel (0%), sand (40%),
fines (60%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 3 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
55
60
65
70
75
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Gradational contact/soil mixed from
push-ahead sampler at 90' bgs.
PID = 0.0 PPM
Pushed push-ahead groundwater
sampler to 91'. No water came in, no
sample collected.
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 97'.
15.0
10.0
2.0
SANDY SILT (ML)
yellowish red / light brown (5YR 5/6), wet, firm, nonplastic. Gravel (0%), sand (40%), fines
(60%).
LEAN CLAY WITH SAND (CL)
yellowish red / light brown (5YR 5/6), wet, firm, medium plasticity. Gravel (0%), sand (20%),
fines (80%).
4" sand layer.
SILTY SAND (SM)
yellowish red / light brown (5YR 5/6), wet, dense, poorly-graded fine sand. Gravel (0%), sand
(30%), fines (70%).
SANDY LEAN CLAY WITH GRAVEL (CL)
yellowish red / light brown (5YR 5/6), wet, firm, medium/high plasticity. Gravel (15%), sand
(25%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish red / light brown (5YR 5/6), wet, dense, well-graded sand and gravel, occasional
cobbles. Gravel (50%), sand (25%), fines (25%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 4 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
80
85
90
95
100
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Core barrel plugged with a boulder
during 97-107' run.
The clay boundary is unknown due to
poor recovery from the 97-107' run.
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 117'.
PID = 0.0 PPM
2.0
10.0
20.0
LEAN CLAY (CL)
olive (5Y 5/4), moist, stiff to very stiff, medium/high plasticity. Gravel (0%), sand (0%), fines
(100%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish brown (10YR 5/6), wet, very dense, well-graded sand and gravel, angular to
subrounded gravel. Gravel (40%), sand (30%), fines (30%).
SANDY LEAN CLAY WITH GRAVEL (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity. Gravel (10%), sand (30%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, very dense, well-graded sand and gravel, occasional cobbles. Gravel
(40%), sand (30%), fines (30%).
GRAVELLY CLAY WITH SAND (CL)
brown (7.5YR 4/4), moist, stiff, medium plasticity. Gravel (20%), sand (20%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, very dense, well-graded sand and gravel. Gravel (40%), sand (30%),
fines (30%).
SANDY LEAN CLAY WITH GRAVEL (CL)
brown (7.5YR 4/4), wet, firm, medium plasticity. Gravel (20%), sand (30%), fines (50%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 5 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
105
110
115
120
125
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 137'.
20.0
20.0
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, very dense, well-graded sand and gravel, subrounded gravels up to
3".
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), wet, firm, medium/low plasticity fines, fine-grained sand. Gravel (0%),
sand (35%), fines (65%).
SANDY SILT (ML)
brown (7.5YR 4/4), wet, firm, nonplastic fines, fine-grained sand. Gravel (0%), sand (35%),
fines (65%).
Clay layers up to 1/2" from 138-143' bgs.
4" sand layer.
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 4/4), wet, very dense, well-graded sand and gravel, occasional cobbles. Gravel
(40%), sand (40%), fines (20%).
No more cobbles.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 6 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
130
135
140
145
150
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 157'.
PID = 0.0 PPM
PID = 0.0 PPM
Gradational contact.
PID = 0.0 PPM
20.0
20.0
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), wet, firm, medium/low plasticity, fine-grained sand. Gravel (0%), sand
(40%), fines (60%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), wet, dense, well-graded sand and gravel, rounded to subrounded gravels
up to 3". Gravel (40%), sand (30%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 7 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
155
160
165
170
175
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 177'.
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 197'.
20.0
20.0
20.0
Color change to 7.5YR 5/4 brown.
Coarsening with depth. Gravel (50%), sand (30%), fines (20%).
Increased gravels. Gravel (60%), sand (25%), fines (15%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 8 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
180
185
190
195
200
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.1 PPM
PID = 0.3 PPM
PID = 0.1 PPM
PID = 0.4 PPM
Collected push-ahead groundwater
sample at 217'.
PID = 0.0 PPM
20.0
20.0
SILTY SAND (SM)
yellowish red (5YR 4/6), wet, dense, poorly graded sand. Gravel (0%), sand (85%), fines
(15%).
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), wet, medium stiff, low plasticity fines, poorly graded sand. Gravel (0%),
sand (35%), fines (65%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 9 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
205
210
215
220
225
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 237'.
PID = 0.0 PPM
PID = 0.0 PPM
20.0
20.0
CLAYEY GRAVEL WITH SAND (GC)
yellowish red (5YR 4/6), wet, dense, well graded sand and gravel, rounded gravels up to 2".
Gravel (40%), sand (30%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 10 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
230
235
240
245
250
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 257'.
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
20.0
17.0
4.0
LEAN CLAY (CL)
yellowish red (5YR 4/6), moist, stiff, medium plasticity. Gravel (0%), sand (5%), fines (95%).
CLAYEY GRAVEL WITH SAND (GC)
yellowish red (5YR 4/6), wet, dense, well graded sand and gravel, subrounded and rounded
gravels up to 2". Gravel (40%), sand (30%), fines (30%).
LEAN CLAY (CL)
yellowish red (5YR 4/6), moist, stiff, medium plasticity. Gravel (0%), sand (10%), fines (90%).
SILTY GRAVEL WITH SAND (GM)
yellowish red (5YR 4/6), wet, medium dense, well graded sand and gravel. Rounded gravels
up to 1.5". Gravel (50%), sand (35%), fines (15%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist to wet, dense, subround to subangular
gravels up to 3". Well graded sand and gravel. Gravel (60%), sand (15%), fines (25%).
Fines increase with depth. Gravel (55%), sand (15%), fines (30%).
LEAN CLAY WITH SAND AND GRAVEL (CL)
reddish brown (5YR 5/4), moist to wet, soft, low plasiticity. Gravel (20%), sand (15%), fines
(60%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown (5YR 5/4), moist to wet, dense, well graded sand and gravel up to 1". Gravel
(55%), sand (15%), fines (30%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 11 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
255
260
265
270
275
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 277'.
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 297'.
4.0
20.0
20.0
SANDY LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, medium stiff, poorly graded angular sand with 1/8" lithic
fragments. Gravel (5%), sand (30%), fines (65%).
3" poorly graded sand stringer at 275 feet.
CLAYEY GRAVEL (GC)
reddish gray / pale brown (5YR 5/2), moist, dense. Gravel (70%), sand (10%), fines (20%).
LEAN CLAY (CL)
reddish brown (5YR 5/4), moist, stiff, laminar. Gravel (0%), sand (10%), fines (90%).
SANDY LEAN CLAY WITH GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), moist, medium stiff to stiff, low plasticity. Gravel
(15%), sand (20%), fines (65%).
GRAVELLY LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), wet, low to medium stiff, low plasticity. Gravel (20%), sand (15%),
fines (65%).
SANDY LEAN CLAY WITH GRAVEL (CL)
brown (7.5YR 4/4), moist, medium firm, low plasticity, laminar. Gravel (5%), sand (30%), fines
(65%).
CLAYEY GRAVEL WITH SAND (GC)
brown (7.5YR 4/4), moist to wet, dense, gravels up to 3". Gravel (60%), sand (15%), fines
(25%).
CLAYEY SAND (SC)
yellowish brown / moderate yellowish brown (10YR 5/4), moist, dense, poorly graded sand.
Gravel (0%), sand (55%), fines (45%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 12 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
280
285
290
295
300
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 317'.
PID = 0.0 PPM
20.0
20.0
SILTY GRAVEL WITH SAND (GM)
reddish brown (5YR 4/3), wet, dense subrounded to subangular gravels up to 3". Gravel
(60%), sand (20%), fines (20%).
fines increase with depth. Gravel (60%), sand (20%), fines (20%).
1" layer of black organic fines at 305' underlain by 6" of sandy lean clay (CL).
Fines increase with depth. Gravel (50%), sand (30%), fines (20%).
LEAN CLAY WITH SAND (CL)
yellowish red / light brown (5YR 5/6), moist, firm, medium plasticity, cohesive. Gravel (0%),
sand (15%), fines (85%).
Speckled with black organic fines from 309.5 to 311'.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, dense, well graded sand and gravel up to
2". Gravel (55%), sand (20%), fines (25%).
LEAN CLAY WITH GRAVEL (CL)
yellowish red (5YR 4/6), moist, medium stiff, cohesive, gravels up to 0.5".
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 13 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
305
310
315
320
325
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
No groundwater sample collected at
337'. The push ahead sampler is dry
after exposing screen overnight.
PID = 0.0 PPM
PID = 0.0 PPM
20.0
20.0
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, dense, well graded sand and gravels up to
3". Gravel (55%), sand (20%), fines (25%).
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), moist, medium stiff, cohesive, medium plasticity. Gravel (5%), sand
(35%), fines (60%).
4" thick clayey gravel with sand (GC), 5YR 4/4 reddish brown, moist, dense.
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), moist, dense, well graded sand and gravel up to
2". Gravel (60%), sand (20%), fines (20%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist to wet, very stiff, medium plasticity, speckled
with black organic fines throughout. Gravel (0%), sand (10%), fines (90%).
3" thick silt stringer at 340.5'.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 14 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
330
335
340
345
350
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
No groundwater sample collected at
357'. The push ahead sampler is dry
after exposing screen for 1 hour.
20.0
20.0
SILT (ML)
pinkish gray (7.5YR 7/2), dry, very stiff, non plastic. Gravel (0%), sand (10%), fines (90%).
LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), moist, very stiff, medium plasticity, speckled with
black organic fines throughout. Gravel (0%), sand (10%), fines (90%).
SANDY LEAN CLAY (CL)
brown (7.5YR 4/4), wet, medium stiff, low plasticity. Gravel (0%), sand (35%), fines (65%).
3" thick layer of poorly graded, fine, angular gravel at 372.5'.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 15 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
355
360
365
370
375
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 377'.
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
No grounwater sample collected at 397'.
The push ahead sampler is dry after
exposing screen for 1 hour.
20.0
20.0
20.0
2" thick layer of subround to subangular fine gravel at 376.5'.
LEAN CLAY (CL)
reddish brown (5YR 5/4), dry to moist, very stiff, medium plasticity, speckled with black
organic fines throughout. Gravel (0%), sand (10%), fines (90%).
LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), moist, soft, low plasticity. Gravel (0%), sand (20%), fines (80%).
LEAN CLAY (CL)
reddish brown (5YR 5/4), dry, very stiff, medium plasticity, speckled with black organic fines
throughout. Gravel (0%), sand (10%), fines (90%).
SANDY LEAN CLAY (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, low plasicity. Gravel (10%), sand (30%),
fines (60%).
SANDY LEAN CLAY WITH GRAVEL (CL)
reddish brown / moderate brown (5YR 4/4), wet, soft, low plasticity. Gravel (15%), sand (30%),
fines (55%).
CLAYEY GRAVEL WITH SAND (GC)
reddish brown / moderate brown (5YR 4/4), wet, dense, well graded sand and gravel up to 2".
Gravel (70%), sand (15%), fines (15%).
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 16 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
380
385
390
395
400
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
PID = 0.0 PPM
Collected push-ahead groundwater
sample at 417'.
20.0
0.0
SILTY GRAVEL WITH SAND (GM)
brown (7.5YR 5/4), wet, dense, well graded sand and gravel up to 2". Gravel (70%), sand
(15%), fines (15%).
LEAN CLAY (CL)
reddish brown (5YR 5/4), dry to moist, medium stiff, low plasticity. Gravel (0%), sand (10%),
fines (90%).
LEAN CLAY WITH SAND (CL)
reddish brown (5YR 5/4), moist, soft, low plasticity. Gravel (0%), sand (20%), fines (80%).
Boring terminated at 420 ft bgs.
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
BORING NUMBER:
MW-08
WATER LEVEL : 61.0 ft bgs
LOCATION : 700 South 1300 East
END : 12/4/2018
ELEVATION : 4540.6 ft msl (ground surface)
LOGGER : R. Hamilton/J. Olsen
PROJECT NUMBER:
START : 11/14/2018
SHEET 17 OF 17
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
683085
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
405
410
415
420
425
COORDINATES : N 7443625.56, E 1542467.27
PROJECT : VA RI
Borehole Log
NE
W

S
O
I
L

B
O
R
I
N
G

L
O
G
;

S
H
A
L
L
O
W

W
E
L
L

L
I
B
R
A
R
Y
.
G
L
B
;

V
H
A

R
I

D
E
E
P

W
E
L
L
.
G
P
J
;

C
H
2
M

G
E
O
T
E
C
H
_
1
2
.
G
D
T
;

3
/
2
8
/
1
9
COMMENTS
DEPTH OF CASING,
DRILLING DETAILS,
INSTRUMENTATION
RE
C
O
V
E
R
Y

(
f
t
)
GR
A
P
H
I
C

L
O
G
SOIL DESCRIPTION
SOIL NAME, USCS GROUP SYMBOL,
COLOR, MOISTURE CONTENT, RELATIVE
DENSITY OR CONSISTENCY, SOIL
STRUCTURE, MINERALOGY
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Poorly graded sand with gravel and silt
Sandy silt with gravel
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Sandy lean clay with gravel
Clayey gravel with sand
Silty sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty clayey sand with gravel
Clayey gravel with sand
Sandy silty clay with gravel
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Silty sand with gravel
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Gravelly lean clay with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Silty sand with gravel
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Lean clay with sand and gravel
Clayey gravel with sand
Sandy, silty clay with gravel
Sandy silty clay
Lean clay
Sandy, silty clay
Silty, clayey gravel with sand
Sandy, silty clay
Silty gravel with sand
Well graded gravel with silt and sand
Sandy lean clay with gravel
Silty clayey gravel with sand
Sandy, silty clay
Silty clayey gravel with sand
Clayey gravel with sand
Gravelly clay with sand
Silty gravel with sand
Clayey gravel with sand
Gravelly lean clay with sand
Clayey gravel with sand
Clayey sand with gravel
Well graded gravel with silt and sand
Silty sand with gravel
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Boring terminated at 407 ft bgs.
MW-03R
SOIL DESCRIPTION WELL
CONSTRUCTION
Neutron(N)
(CPS)
3000 6000 9000 12000
PCE
(µg/L)
20 40 60 800DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
683085
PROJECT : VA RI
ELEVATION : pending
COORDINATES : pending
WATER LEVEL : 187.0 ft bgs
BORING NUMBER:
Borehole Log
DRILLING METHOD AND EQUIPMENT : Sonic 10x8, 9x8, 8x6
START : 10/8/2018 END : 11/7/2018
PROJECT NUMBER:
SHEET 1 OF 1
LOCATION : SW Side of VA Campus
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
LOGGER : R. Hamilton/J.Olsen
SA
T
U
R
A
T
E
D
IN
T
E
R
V
A
L
(a
p
p
r
o
x
.
)
GR
A
P
H
I
C

L
O
G
DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
20 40 60 8020 40 60 80
NATURAL GAMMA
(API)
40 60 80 100
blue = ALS lab result
red = Average
HAPSITE result
0.4; <1
7.4; 6.3
6.3; 6.5
81; 69
11; 7.8
29; 22
3.6; 2.0
<0.3; <1
<0.3; <1
<0.3; <1
<0.3; <1
Silty sand with gravel
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Silty gravel with sand
Clayey gravel with sand
Sandy lean clay with gravel
Clayey sand with gravel
Sandy lean clay
Sandy silt
Lean clay with sand
Silty sand
Sandy lean clay with gravel
Clayey gravel with sand
Lean clay
Clayey gravel with sand
Sandy lean clay with gravel
Clayey gravel with sand
Gravelly clay with sand
Clayey gravel with sand
Sandy lean clay with gravel
Clayey gravel with sand
Sandy lean clay
Sandy silt
Silty gravel with sand
Sandy lean clay
Clayey gravel with sand
Silty sand
Sandy lean clay
Clayey gravel with sand
Lean clay
Clayey gravel with sand
Lean clay
Silty gravel with sand
Clayey gravel with sand
Lean clay with sand and gravel
Clayey gravel with sand
Sandy lean clay
Clayey gravel
Lean clay
Sandy lean clay with gravel
Gravelly lean clay with sand
Sandy lean clay with gravel
Clayey gravel with sand
Clayey sand
Silty gravel with sand
Lean clay with sand
Clayey gravel with sand
Lean clay with gravel
Clayey gravel with sand
Sandy lean clay
Clayey gravel with sand
Lean clay
Silt
Lean clay
Sandy lean clay
Lean clay
Lean clay with sand
Lean clay
Sandy lean clay
Sandy lean clay with gravel
Clayey gravel with sand
Silty gravel with sand
Lean clay
Lean clay with sand
Boring terminated at 420 ft bgs.
MW-08
SOIL DESCRIPTION WELL
CONSTRUCTION
Neutron(N)
(CPS)
3000 6000 9000 12000
PCE
(µg/L)
20 40 60 800DE
P
T
H

B
E
L
O
W
GR
O
U
N
D

S
U
R
F
A
C
E
(f
t
)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
683085
PROJECT : VA RI
ELEVATION : pending
COORDINATES : pending
WATER LEVEL : 61.0 ft bgs
BORING NUMBER:
Borehole Log
DRILLING METHOD AND EQUIPMENT : Sonic 10x6, 9x6, 8x6
START : 11/14/2018 END :
PROJECT NUMBER:
SHEET 1 OF 1
LOCATION : 700 South 1300 East
DRILLING CONTRACTOR AND DRILL RIG : Cascade, Sonic Drill Corporation
LOGGER : R. Hamilton/J. Olsen
SA
T
U
R
A
T
E
D
IN
T
E
R
V
A
L
(a
p
p
r
o
x
.
)
GR
A
P
H
I
C

L
O
G
(f
t
)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
20 40 60 8020 40 60 80
NATURAL GAMMA
(API)
40 60 80 100
5.7; 4.8
52
29
< 1
2.1
2.6
1.8
< 1
< 0.15; < 1
< 1
< 1
< 1
< 1
< 1
< 1
TBD
blue = EMAX lab result
red = HAPSITE result
14.0
17.0
20.0
21.0
24.0
30.0
31.0
32.0
34.0
No Recovery; Vacuum excavated to 14 feet bgs.
Silty SAND; 55% fine sand; 40% silt; 5% fine to coarse gravel
dense; reddish brown (5YR 5/4); moist.
Gravelly SAND; 50% fine to medium sand; 30% fine to coarse
gravel; 20% silt; weakly cemented in places; dark reddish
brown (2.5YR 3/4); moist.
Well graded GRAVEL; 70% fine to coarse gravel; 30%
medium to coarse sand; compact; dark reddish brown (2.5YR
3/4); dry.
Sandy SILT; 55% silt; 30% fine to coarse sand; 15% fine
gravel; slightly cohesive; reddish brown (5YR 4/3); moist.
Poorly Graded GRAVEL; 100% Fine to coarse subrounded
gravel; loose; brown (7.5YR 5/4); moist.
Gravelly SILT; 60% silt; 40% fine to coarse angular gravel;
slightly cohesive; brown (7.5YR 4/3); moist
Well graded GRAVEL; 70% coarse rounded gravel; 30% fine
sand; loose; pink (7.5YR 7/3); dry to moist.
Gravelly SAND; 60% fine sand; 40% fine to coarse
subrounded to subangular poorly sorted gravel; loose, reddish
brown (5YR 5/4); moist.
0.099
0.106
0.147
0.080
0.509
0.685
0.033
0.170
0.133
0.130
0.175
0.198
0.234
Vault with
cement surface
seal
Bentonite Grout
(3.5 to 31 ft
bgs).
9.8
27.1
11.3
8.0
4.5
11.4
12.6
19.2
8.3
9.6
4.0
7.1
50.4
6.2
39.9
20.5
SM
SW
GW
ML
GP
ML
GW
SP
MW23-
SB040720-
16
MW23-
SB040720-
24
MW23-
SB040720-
30
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Milller, Betsy Bott
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4712.47
See Table 5
A perched groundwater zone was encountered at approx. 150 ft bgs and groundwater was encountered at approx. 200 ft bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
4/7/2020 - 4/15/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 1 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
37.0
39.0
40.0
45.0
48.0
50.0
53.0
60.0
66.0
68.0
70.0
74.5
Gravelly SILT; 50% silt; 40% fine to coarse gravel; 10% fine
to medium sand; stiff; reddish brown (2.5 YR 4/3); moist.
Silty GRAVEL; 60% fine to coarse rounded to subrounded
gravel; 20% fine to medium sand; 20% silt; loose; reddish
brown (5YR 4/4); moist.
Gravelly SILT; 60% silt; 40% fine to coarse gravel; stiff;
cohesive; reddish brown (2.5 YR 4/3); moist.
Silty GRAVEL; 60% fine to coarse rounded to subrounded
gravel; 10% fine to medium sand; 30% silt; loose; reddish
brown (5YR 4/4); moist.
Poorly Graded GRAVEL; 70% fine to coarse subrounded
gravel; 30% fine sand; loose; yellowish brown (10YR 5/4);
dry.
Gravelly SILT; 50% silt; 35% fine gravel; 15% sand; brown
(7.5YR 5/4); moist.
SILT; 70% silt; 20% fine sand; 10% fine gravel; slightly
cohesive; stiff; brown (7.5YR 4/3); moist.
Silt GRAVEL; 50% fine to coarse Gravel; 30% Silt; 20% fine
sand; loose; light brown (7.5YR 6/4); moist.
Poorly graded GRAVEL; 50% fine to coarse subrounded to
subangular gravel; 40% fine to coarse sand; 10% silt; loose;
brown (7.5YR 4/4); moist.
Gravelly SILT; 60% silt; 35% fine to coarse gravel; 5% fine
sand; slightly cohesive; reddish brown (2.5YR 4/4); moist.
Gravelly SILT; 60% silt; 35% fine to coarse gravel; 5% fine
sand; slightly cohesive; brown (10YR 4/4); moist
Sandy GRAVEL; 50% fine to coarse subrounded to
subangular gravel; 40% fine sand; 10% silt; loose; reddish
brown (5YR 4/4); moist.
0.147
0.030
0.133
0.195
0.210
0.168
0.386
0.454
0.082
0.273
0.106
0.133
0.034
0.106
0.170
0.147
0.112
0.158
0.089
0.152
0.092
Hydrated
bentonite pellets
(31 to 127 ft
bgs).
19.0
9.6
6.8
9.6
9.1
16.9
32.3
16.8
12.6
19.8
8.4
13.4
5.3
14.5
20.6
2.2
2.2
15.6
7.8
2.5
3.1
ML
GM
ML
GM
GP
ML
ML
GM
GP
ML
ML
GW
MW23-
SB040720-
49
MW23-
SB040720-
54
MW23-
SB040720-
63
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 2 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
76.0
85.5
87.0
90.0
95.0
99.0
106.0
110.0
112.0
115.0
Silty GRAVEL; 70% fine to coarse gravel; 30% silt; cohesive
in places; reddish brown (2.5 YR 5/4); moist.
Sandy GRAVEL; 50% fine to coarse subangular to
subrounded well graded gravel; 40% fine to coarse sand; 10%
silt; dark reddish brown (2.5YR 3/4); moist.
Poorly graded GRAVEL; 85% fine to coarse gravel; 15% silt;
medium dense; light gray (5YR 7/1); moist.
Silty GRAVEL; 60% fine gravel; 35% silt; %5 fine to coarse
sand; socketed matrix; dense; reddish brown (5YR 4/4);
moist.
Poorly graded GRAVEL; 60% fine to coarse gravel; 30% fine
sand; 10% silt; reddish brown (5YR 4/3); moist.
Silty GRAVEL; 60% fine to coarse gravel; 35% silt; %5 fine
sand; weakly cemented; reddish brown (5YR 4/4); moist.
SILT; 70% silt; 30% fine to coarse subangular to subrounded
gravel; weakly cemented; hard; brown (7.5YR 5/2); dry to
moist.
Sandy GRAVEL; 50% fine to coarse subangular gravel; 40%
fine sand; 10% silt; loose; reddish brown (5YR 4/3); moist.
Silty GRAVEL; 60% fine to coarse poorly sorted gravel; 30%
silt; 10% fine sand; medium dense; reddish brown (5YR 4/4);
moist.
Poorly graded GRAVEL; 70% fine to coarse gravel; 15% fine
sand; 15% silt; weakly cemented in places; red (2.5YR 4/6);
moist.
0.084
0.149
0.139
0.128
0.018
0.871
0.189
0.220
0.144
1.78
0.208
0.243
0.186
0.172
0.183
0.103
0.007
Hydrated
bentonite pellets
(31 to 127 ft
bgs).
26.8
6.0
10.6
8.5
12.8
22.4
12.3
10.0
12.2
44.8
19.3
19.3
237
98.2
43.1
33.2
19.3
8.7
16.8
23.9
23.4
15.4
51.2
14.9
45.9
16.8
18.5
GM
GW
GP
GM
GP
GM
ML
GP
GM
GP
MW23-
SB040720-
75
MW23-
SB040720-
85
MW23-
SB040720-
93
MW23-
SB040720-
97
MW23-
SB040720-
107
MW23-
SB040820-
110
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 3 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
117.0
120.0
128.0
136.5
139.0
142.0
145.0
147.0
149.0
150.0
151.0
155.0
Silty GRAVEL; 60% fine to coarse angular to subangular
gravel; 30% silt; 10% fine sand; loose; reddish brown (2.5YR
4/4); moist.
Poorly graded GRAVEL; 60% fine to coarse angular to
subangular gravel; 25% fine sand; 15% silt; loose; reddish
brown (2.5YR 4/4); moist.
Silty GRAVEL; 60% fine to coarse poorly graded gravel; 25%
silt; 15% fine sand;
weakly cemented in places; dense; brown (7.5YR 5/3); moist.
Poorly graded GRAVEL; 60% fine to coarse gravel; 10% silt;
30% fine sand;
loose; brown (7.5YR 5/3); moist.
Poorly graded GRAVEL; 60% fine to coarse gravel; 5% silt;
35% fine sand;
loose; reddish brown (5YR 4/4); moist.
Silty GRAVEL; 70% fine to coarse poorly graded gravel; 25%
silt; 5% fine sand;
medium dense; dark reddish brown (5YR 3/4); dry to moist.
Poorly Graded GRAVEL; 50% fine to coarse subrounded to
subangular gravel; 40% fine to coarse sand; 10% silt, loose;
reddish brown (5YR 5/4); moist.
Silty GRAVEL; 60% fine to coarse poorly graded gravel; 35%
silt; 5% fine sand;
medium dense; dark reddish brown (2.5YR 5/3); dry to moist.
Poorly graded GRAVEL; 70% fine to coarse angular gravel;
20% fine sand; 10% silt; loose; reddish brown (2.5YR 4/4);
wet.
Clayey SILT; 80% medium to high plasticity clayey silt; 20%
fine gravel; some lime cement; hard; reddish brown (5YR
3/4); wet.
Silty GRAVEL; 60% fine gravel; 40% silt; medium dense;
reddish brown (5YR 3/4); wet.
Sandy GRAVEL; 45% fine to coarse subangular to
subrounded well graded gravel; 40% fine sand; 15% silt;
reddish brown (5YR 5/4); moist.
0.089
0.136
0.168
0.045
0.149
0.175
0.141
0.141
0.099
0.000
0.359
0.165
0.070
0.166
0.230
0.163
0.026
0.187
0.348
0.087
0.013
#10/20 sand
filter pack (127
to 143 ft bgs).
1-inch 0.020 slot
screen for vapor
monitoring (130
to 140 ft bgs).
11.2
20.3
5.1
7.0
15.9
29.0
32.6
1.4
2.5
6.4
10.2
19.5
19.8
18.0
20.7
1.4
3.9
8.5
16.0
14.8
18.1
7.0
14.9
2.9
0.8
5.4
10.0
4.1
GM
GP
GM
GP
GP
GM
GP
GM
GP
MH
GM
GP
MW23-
SB040820-
124
MW23-
SB040820-
133
MW23-
SB040820-
143
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 4 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
166.0
168.0
170.0
174.5
176.0
180.0
185.0
188.0
190.0
Silty GRAVEL; 70% fine to coarse subrounded to angular
gravel; 30% silt; dense; dark reddish brown (2.5YR 3/3);
moist.
Silty GRAVEL; 60% fine to coarse subrounded to angular
gravel; 40% silt; slightly cohesive; medium dense; dark
reddish brown (2.5YR 3/3); moist.
Poorly graded GRAVEL; 60% fine to coarse gravel; 30% fine
sand; 10% silt; loose; light reddish brown (5YR 6/4); dry to
moist.
Gravelly SILT; 60% Silt; 40% fine to coarse gravel; cohesive;
stiff; dark reddish brown (2.5YR 3/3); moist.
Clayey SILT; 75% medium to high plasticity clayey silt; 25%
fine gravel; stiff; cohesive; dark reddish brown (2.5YR 3/4);
moist.
Gravelly SILT; 60% Silt; 40% fine gravel; slightly cohesive;
stiff; strong brown (7.5YR 4/6); moist.
Gravelly SILT; 65% Silt; 35% fine rounded gravel; cohesive;
stiff; dark reddish brown (2.5YR 2.5/4); moist.
SILT; 85% Silt; 15% fine rounded gravel; cohesive; stiff;
weakly cemented red (2.5YR 4/6); moist.
SILT; 90% Silt; 10% fine rounded gravel; cohesive; stiff;
reddish brown (2.5YR 4/4); moist to wet
Sandy GRAVEL; 60% fine poorly graded gravel; 10% silt;
30% fine sand;
loose reddish brown (5YR 4/4); wet
0.215
0.149
0.030
0.279
0.000
0.102
0.082
0.053
0.244
0.446
0.198
0.099
0.050
0.112
0.034
0.000
0.152
0.110
Hydrated
bentonite pellet
seal (143 to 207
ft bgs).
26.9
16.7
23.4
9.4
15.5
12.0
8.5
4.6
10.7
10.8
22.6
60.2
1.8
3.2
9.0
9.2
95.1
50.4
1,8
4.8
8.3
5.3
2.3
19.3
2.7
6.0
3.9
7.8
1.9
1.9
0.5
1.0
GM
GM
GP
ML
MH
ML
ML
ML
ML
GP
MW23-
SB040820-
155
MW23-
SB040920-
169
MW23-
SB040920-
175
MW23-
SB040920-
184
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 5 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
196.5
200.0
209.0
213.0
217.0
220.0
221.5
225.5
232.5
Silty GRAVEL; 60% fine to coarse subrounded to rounded
gravel; 25% silt; 15% fine sand; dark reddish brown (2.5YR
3/3); wet.
Silty GRAVEL; 70% fine to coarse angular gravel; 20% silt;
10% fine to coarse sand; loose; reddish brown (5YR 4/4);
wet.
- 205 to 210 feet bgs sample slid out of core barrel and was
retrieved during the 210 to 220 feet bgs sonic run.
Silty GRAVEL; 60% fine to coarse subrounded to rounded
gravel; 30% silt; 10% fine sand; medium dense; socketed
matrix; reddish brown (5YR 4/4); moist to wet.
Sandy GRAVEL; 50% fine subangular to angular gravel; 40%
fine sand; 10% silt; weakly cemented in places; loose to
medium dense; reddish brown (2.5YR 4/3); dry to moist.
Silty GRAVEL; 60% fine to coarse subrounded to rounded
gravel; 30% silt; 10% fine sand; medium dense; socketed
matrix; reddish brown (5YR 4/4); moist.
Sandy SILT; 70% low plasticity silt; 30% fine sand; firm;
cohesive; dark reddish brown (5YR 3/4); wet.
Sandy SILT; 50% low plasticity silt; 40% fine sand; 10% fine
gravel; stiff; cohesive; dark reddish brown (5YR 3/4); wet.
Gravelly SILT; 60% low plasticity silt; 30% fine to coarse
gravel; 10% sand; cohesive; stiff; dark reddish brown (5YR
3/4); moist.
Sandy SILT; 60% low plasticity silt; 35% fine sand; 5% gravel;
cohesive; soft to firm; yellowish red (5YR 4/6); wet.
0.120
0.089
0.110
0.000
0.000
0.759
0.259
0.886
0.097
0.128
0.128
0.158
0.160
0.073
0.049
0.095
0.192
0.245
#10/20 sand
filter pack (207
to 224 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (210
to 220 ft bgs).
1.1
6.0
0.9
13.4
3.4
5.5
1.7
12.9
6.3
27.3
34.2
17.6
21.3
29.3
26.6
37.7
0.3
0.5
3.4
0.8
3.7
7.8
6.0
3.9
5.5
1.4
0.2
2.9
GM
GM
GM
GP
GM
ML
ML
ML
ML
MW23-
SB040920-
199
MW23-
SB040920-
208
MW23-
SB040920-
218
MW23-
GW040920-
220
MW23-
SB041020-
226
MW23-
SB041020-
230
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 6 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
237.0
240.0
247.0
248.0
250.0
251.0
254.5
258.5
261.0
270.0
272.0
275.0
Silty SAND; 55% fine to coarse sand; 20% silt; 15% fine
gravel; cohesive; yellowish red (5YR 4/6); wet.
Clayey SILT; 90% medium to high plasticity clayey silt; 10%
fine sand; stiff; cohesive; yellowish red (5YR 4/6); wet.
Silty GRAVEL; 65% fine to coarse gravel; 35% silt; socketed
matrix; brown (7.5YR 4/3); moist to wet.
Poorly Graded SAND; 80% fine sand; 10% fine to coarse
gravel; 10% silt; loose; brown (10YR 4/3); dry.
Gravelly SILT; 60% low plasticity silt; 40% fine gravel;
cohesive; yellowish red (5YR 4/6); wet.
Silty SAND; 55% fine to coarse sand; 20% silt; 15% fine
gravel; cohesive; yellowish red (5YR 4/6); moist.
Poorly graded SAND; 80% fine to coarse sand; 10% fine
gravel; 10% silt; loose; yellowish brown (10YR 6/4); dry to
moist.
Poorly graded GRAVEL; 60% fine to coarse gravel; 30% fine
sand; 10% silt; weakly to moderately cemented; very dense;
weak red (10R 4/2); dry to moist.
Gravelly SILT; 60% low plasticity silt; 30% fine to coarse
gravel; 10% fine sand; cohesive; stiff; brown (7.5YR 5/3) with
red mottling; wet.
Silty SAND; 60% fine to coarse sand; 35% silt; 5% fine
gravel; light yellowish brown (5YR 6/4); wet.
Clayey SILT; 95% medium to high plasticity clayey silt; 5%
fine sand; very stiff; cohesive; yellowish red (5YR 6/4); moist.
0.777
0.000
0.642
0.417
0.419
0.425
0.095
0.178
0.144
0.111
1.02
0.108
0.136
0.595
1.20
0.160
0.334
0.390
0.000
0.345
0.167
Hydrated
bentonite pellet
seal (224 to 247
ft bgs).
#10/20 sand
filter pack (247
to 264 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (250
to 260 ft bgs).
0.3
1.4
2.3
2.4
0.4
0.9
2.6
1.7
0.8
0.7
1.2
21.9
30.5
12.5
96.3
17.6
24.1
120
470
73.6
350
9.9
52.8
3.4
27.2
11.0
16.4
37.3
17.2
1.4
5.5
2.8
SM
MH
GM
ML
SM
SP
GP
ML
SM
MH
MW23-
GW041020-
240
MW23-
SB041020-
244
MW23-
SB041020-
257
MW23-
GW041020-
260
MW23-
SB041220-
261
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 7 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
279.0
280.0
286.0
299.0
306.0
307.0
308.0
313.0
314.0
Sandy SILT; 60% low to medium plasticity silt; 30% fine sand;
10% fine gravel; stiff; cohesive; yellowish red (5YR 4/6);
moist.
Silty SAND; 50% fine to medium sand; 40% silt; 10% fine
gravel; weakly cemented; yellowish red (5YR 4/6); moist.
Clayey SILT; 85% high plasticity clayey silt; 10% fine sand;
5% fine gravel; cohesive; stiff; red (2.5YR 4/ 6); moist to wet.
SILT; 80% low to medium plasticity silt; 20% fine to medium
sand; cohesive; red (2.5YR 4/6); moist to wet.
SILT; 80% low to medium plasticity silt; 10% fine to medium
sand; 10% fine rounded gravel; cohesive; very stiff; red
(2.5YR 4/6); moist to wet.
Gravelly SILT; 70% low plasticity silt; 30% fine gravel; very
stiff; brown (7.5YR 4/4); dry to moist.
Silty GRAVEL; 70% fine gravel; 30% silt; cemented; dense;
pinkish white (7.5YR 8/2); dry.
Sandy SILT; 70% low plasticity silt; 30% fine to medium sand;
cohesive; very stiff; light brown (7.5YR 6/4) dry.
Silty GRAVEL; 70% fine to coarse gravel; 30% silt; dense;
cemented; light brown (7.5YR 6/4); dry to moist.
Silty GRAVEL; 60% fine gravel; 30% silt; 10% fine to coarse
0.148
0.030
0.460
0.445
0.395
0.224
0.400
0.255
0.308
0.327
0.478
0.404
0.320
0.683
0.312
0.278
Hydrated
bentonite pellet
seal (264 to 344
ft bgs).
2.3
2.6
2.7
3.2
5.3
4.8
0.2
1.0
1.5
3.3
2.5
0.5
1.3
4.2
2.4
8.4
0.7
19.5
19.7
11.3
349
624
15000
5006
15000
ML
SM
MH
ML
ML
ML
GM
ML
GM
MW23-
SB041220-
280
MW23-
SB041220-
307
MW23-
GW041220-
310
MW23-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
280
285
290
295
300
305
310
315
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 8 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
322.5
330.0
335.0
337.0
340.0
341.0
344.0
346.0
347.0
354.0
sand; dense; cohesive; brown (7.5YR 4/4); moist to wet.
Silty GRAVEL; 60% fine to coarse gravel; 25% silt; 15% fine
to coarse sand; medium dense; cohesive; brown (7.5YR 4/4);
moist to wet.
-becomes wet
Gravelly SILT; 50% low plasticity silt; 40% fine to coarse
gravel; 10% fine sand; cohesive; stiff; brown (7.5YR 5/3);
moist to wet.
Silty GRAVEL; 60% fine to coarse gravel; 40% silt; loose;
strong brown (7.5YR 5/6); wet.
Gravelly SILT; 60% low plasticity silt; 40% fine gravel;
cohesive; strong brown(7.5YR 5/6); wet.
Silty GRAVEL; 60% fine to coarse gravel; 40% silt; medium
dense; brown (7.5YR 5/3); wet.
Sandy GRAVEL; 50% fine to coarse subrounded gravel; 40%
fine sand; 10% silt; loose; brown (7.5YR 5/4); wet.
Clayey SILT; 80% medium to high plasticity clayey silt; 20%
gravel; cohesive; stiff; brown (7.5YR 5/3); dry to moist.
Poorly Graded GRAVEL; 80% fine gravel; 20% silt; loose;
brown (7.5YR 5/3); dry.
Gravelly SILT; 60% medium to high plasticity clayey silt; 40%
fine to coarse rounded gravel; very stiff; brown (7.5YR 5/3);
dry to moist.
Gravelly SILT; 60% low plasticity silt; 40% fine gravel; soft;
0.319
0.460
0.161
0.385
0.275
0.123
0.116
0.673
0.733
0.872
0.502
0.435
0.143
0.770
0.550
0.430
0.270
0.582
#10/20 sand
filter pack (344
to 360 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (348
to 358 ft bgs).
110
865
713
187
543
39.7
2.4
12.8
198
19.8
49.0
38.8
6.7
2.0
65.3
83.5
39.8
85.1
17.7
2.2
44.7
60.1
29.0
5.5
9.2
706
556
132
433
62
532
525
2.8
GM
GM
ML
GM
ML
GM
GP
MH
GP
MH
SB041320-
314
MW23-
SB041320-
324
MW23-
SB041420-
334
MW23-
GW041420-
340
MW23-
SB041420-
340
MW23-
SB041520-
346
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
320
325
330
335
340
345
350
355
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 9 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
360.0
brown (7.5YR 5/4); wet.
End of boring at 360 ft bgs.
2.8
1.0
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2020 - 4/15/2020
360
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-23
PAGE 10 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
11.0
15.0
17.0
18.0
20.0
26.0
32.0
34.0
Hydrovac from 0 to 11 ft bgs.
Silty GRAVEL: fine to coarse; dense; reddish brown (5 YR
4/4); moist.
SAND and GRAVELl with Silt: 45% sand, poorly graded; 45%
fine to coarse gravel; 10% silt; light brown (7.5 YR 6/3); loose;
dry.
Gravelly SILT: brown (7.5 YR 4/2); stiff, cohesive; moist.
Silty GRAVEL with Sand: 50% fine to coarse gravel, 6 to 8
inch cobbles; 35% silt; 15% sand; reddish brown (5 YR 4/4).
Sandy SILT: fine sand; lamination; reddish brown (5 YR 5/4);
stiff; cohesive in places; trace iron oxide staining; moist.
Large (4 to 8 inch) cobble at 22.2 ft bgs.
Cohesive layer at 25.7 ft bgs.
GRAVEL with Sand and Silt: 55% fine to coarse gravel,
angular to subrounded; 35% sand; 10% silt; brown (7.5 YR
4/3); loose, trace iron oxide staining; dry to moist.
GRAVEL with Sand and Silt: same as above with an 8 inch
cohesive silt interval at 32 ft bgs; brown (7.5 YR 4/3); dry to
moist.
GRAVEL with Sand and Silt: same as above with 6 inch
0.185
0.179
2.01
0.121
0.118
0.484
2.5
0.257
0.466
0.27
0.616
0.199
0.152
0.145
0.218
0.133
0.146
Vault with
cement surface
seal
#10/20 sand
filter pack (30 to
35 ft bgs) with
6-inch stainless
stell mesh vapor
probe at 32 ft
bgs.
8.2
0.8
2.7
2.6
4.6
3.1
5.7
0.8
4.8
2.5
4.7
1.6
0.213
0.4
4.5
0.3
9.8
3.1
5
0.1
2.7
2.1
4.3
2
6.7
5.3
8.2
13.8
GM
SP
GP
ML
GM
ML
GW
GW
MW-
24-
SB051120-
14
MW-
24-
SB051120-
22
MW-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
4-inch SCH 40 0.010-slot
#10/20 sand
REMARKS
4709.77
See Table 5
A perched groundwater zone was encountered at approx. 160 ft bgs and groundwater was encountered at approx. 200 ft bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
4-inch SCH 40 PVC
5/11/2020 - 5/15/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 1 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
36.0
37.0
40.0
42.0
43.0
47.0
57.0
62.0
64.0
67.5
71.0
73.0
cohesive silt interval at 34.4 to 35 ft bgs; brown (7.5 YR 4/3);
dry to moist.
Gravelly SILT: 60% silt; 40% fine to coarse gravel; cohesive;
moist.
SAND and GRAVEL: fine to coarse gravel, angular to
subrounde; loose; moist.
Silty SAND: 70% fine sand; 30% silt; reddish brown (5 YR
5/4); loose; moist.
Clayey GRAVEL: 60% fine to coarse gravel; 40% clay;
reddish brown (5 YR 5/4); medium dense; moist.
GRAVEL and SAND: 50% fine to coarse gravel, 4 to 6 inch
cobbles; 50% sand; reddish brown (7.5 YR 4/4); loose; moist.
CLAY with Gravel: 80% clay, low plasticity; 20% fine to
coarse gravel; strong brown (7.5 YR 4/6); stiff; laminated in
places; cohesive; dry to moist.
Sample is moist.
Sandy GRAVEL with Silt: 60% fine to coarse gravel; 30%
sand; 10% silt; reddish brown (5 YR 5/3); medium dense;
moist.
Gravelly SILT: 60% silt, low plasticity; 40% fine to coarse
gravel; reddish brown (5 YR 4/4); cohesive; moist to wet.
GRAVEL with Sand and Silt: 60% fine to coarse gravel,
subangular to subrounded; 30% sand; 10% silt; brown (7.5
YR 4/4); moist.
Gravelly SILT: fine gravel; brown (7.5 YR 4/4); cohesive;
moist.
GRAVEL: fine to coarse gravel; large cobbles, 6 to 8 inches;
yellowish brown (10 YR 5/4); loose; moist to dry.
GRAVEL and SAND: fine to coarse gravel; brown (7.5 YR
4/4); loose; moist.
0.074
0.122
0.168
0.031
0.228
0.053
0.037
0.345
0.104
0.279
0.179
0.091
0.141
0.07
0.065
0.186
0.17
0.75
0.203
0.05
0.188
0.04
0.102
0.334
Hydrated
bentonite pellets
(35 to 58 ft bgs).
#10/20 sand
filter pack (58 to
63 ft bgs) with
6-inch stainless
stell mesh vapor
probe at 60 ft
bgs.
13.3
9.9
7.5
6.4
3.8
3.9
6.6
5.9
3.6
5.1
5.1
6.1
2.3
3.5
3.2
6.2
6.7
3.6
7.2
11.3
1.4
1.1
2.2
2.5
2.5
12
5.5
6.9
4.2
3
7.1
4.8
2.7
2.8
9.6
4.6
2
GW
ML
GW
SW
SM
GC
GW
SW
CL
GW
CL
GW
ML
GW
24-
SB051120-
34
MW-
24-
SB051220-
43
MW-
24-
SB051220-
56
MW-
24-
SB051220-
61
MW-
24-
SB051220-
71
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 2 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
80.0
87.0
88.0
91.5
96.0
97.5
103.0
105.0
106.0
110.0
112.0
114.0
Color is reddish brown (5 YR 4/4).
GRAVEL with Sand and Silt: 50% fine to coarse grave; 40%
sand; 10% silt; reddish brown (5 YR 5/4); medium dense;
moist.
Cohesive layer near 82 ft bgs.
GRAVEL with Sand and Silt: 50% fine to coarse gravel; 40%
sand; 10% silt; loose.
Silty GRAVEL: compact; dry to moist.
GRAVEL with Sand and Silt: fine to coarse gravel; loose; dry.
Gravelly CLAY: 75% clay, medium plasticity; 25% fine to
coarse gravel; yellowish red (5 YR 4/6); cohesive; stiff to very
stiff; moist to wet.
Gravelly CLAY: same as above except less gravel; yellowish
red (5 YR 4/6); moist to wet.
Silty GRAVEL: 65% fine to coarse gravel; 35% silt,
non-plastic; yellowish red (5 YR 4/6); medium dense; moist.
Same as above except increase in sand, medium to coarse.
SAND and GRAVEL: 50% well graded, fine to coarse gravel;
50% medium to coarse sand; reddish brown (5 YR 5/4);
loose; moist.
Silty GRAVEL: fine to coarse gravel; reddish brown (5 YR
5/4); cohesive in places; medium dense; moist.
GRAVEL with Sand and Silt: 70% fine to coarse gravel,
subangular to subrounded; 15% sand; 15% silt; strong brown
(7.5 YR 4/6); loose; dry to moist.
Same as above except decrease in silt near 108 ft bgs.
No recovery from 110 to 112 ft bgs; clayey material, slid out of
sampler.
Gravelly CLAY: reddish brown (5 YR 5/3); fine to coarse
gravel; stiff; moist.
Silty GRAVEL: 70% fine to coarse gravel, angular to
0.213
0.148
0.204
0.265
0.146
0.175
0.24
0.05
0.247
0.339
0.31
0.139
0.175
0.12
0.045
0.22
0.133
Hydrated
bentonite pellets
(63 to 102 ft
bgs).
#10/20 sand
filter pack (102
to 107 ft bgs)
with 6-inch
stainless stell
mesh vapor
probe at 104 ft
bgs.
2.4
5.5
0.1
0.3
3.1
2
7.5
5.6
24
4.3
3.1
4.6
7.2
20.7
3.5
3.1
2.6
2.1
41
4.9
7
2.3
6.3
35
10.8
34.1
26.9
12.5
3.9
GW
SW
GW
GM
GW
CL
CL
GM
GW
SW
GM
GW
CL
MW-
24-
SB051220-
84
MW-
24-
SB051220-
104
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 3 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
125.0
130.0
140.0
142.0
145.0
147.0
149.5
150.5
154.0
155.0
subrounded; 30% silt; light brown (7.5 YR 6/4); cemented;
very dense; moist to dry.
Large boulder at 121 ft bgs.
SAND with Gravel: 60% fine sand; 40% well graded, fine to
coarse gravel; reddish brown (5 YR 4/4); loose, moist.
GRAVEL with Sand and Silt: 60% fine to coarse gravel,
angular to subrounded; 30% fine sand; 10% silt; reddish
brown (5 YR 5/3); cemented in places; dense; moist.
GRAVEL and SAND: fine to coarse gravel, well graded; fine
sand; reddish brown (5 YR 5/3); gray mottling; loose; moist.
Large (6 inch) cobbles at 137.7 ft bgs.
Large (6 inch) cobbles at 139.1 ft bgs.
Silty GRAVEL: cemented in places; reddish brown (5 YR 5/3);
cohesive.
GRAVEL with Sand: 60% gravel, 40% sand; reddish brown (5
YR 5/3); moist.
Silty GRAVEL: 60% gravel; 40% silt; reddish brown (5 YR
5/3); cohesive; moist.
Gravelly SILT: 70% silt; 30% gravel; reddish brown (5 YR
5/3); cohesive.
GRAVEL with SAND: fine to coarse gravel; reddish brown (5
YR 5/3); loose; wet.
Silty GRAVEL: 70% fine to coarse gravel; 30% silt; sand
layer; reddish brown (5 YR 5/4); cemented; cohesive in
places; moist.
GRAVEL with Sand: fine to coarse gravel; subangular to
0.19
0.223
0.147
0.142
0.132
0.103
0.097
0.315
0.29
0.434
0.128
0.333
0.208
0.478
0.127
0.129
0.084
0.073
Hydrated
bentonite pellets
(107 to 128 ft
bgs).
#10/20 sand
filter pack (128
to 133 ft bgs)
with 6-inch
stainless stell
mesh vapor
probe at 130 ft
bgs.
3.4
1.5
3.1
23.1
12.9
58.8
4.2
29.5
7.4
11.4
3.1
2.7
1.7
2.3
6.5
24.7
3.1
2.7
7
2.8
3.4
1.9
11.5
19.2
12.7
20
8.1
19
17.1
23.4
4.6
51.1
10.4
29.3
GM
SP
GW
GM
GP
GM
ML
GW
GM
GP
MW-
24-
SB051220-
119
MW-
24-
SB051320-
132
MW-
24-
SB051320-
149
MW-
24-
SB051320-
152
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 4 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
165.0
170.0
172.0
174.0
176.0
178.5
182.0
188.0
189.0
195.0
subrounded; reddish brown (5 YR 5/4); cemented in places;
medium dense.
Gravelly CLAY: 60% clay, low plasticity; 40% fine gravel;
cohesive; reddish brown (2.5 YR 5/4); moist to wet.
Gravelly CLAY: 50% clay; 40% fine gravel; 10% sand; reddish
brown (2.5 YR 5/4); cohesive; moist.
Silty GRAVEL with Sand: 50% fine to coarse gravel,
subangular to subrounded; 30% silt; 20% sand; reddish
brown (5 YR 4/4); moist.
Less sand and cemented near 168 ft bgs.
GRAVEL with SAND: 60% fine to coarse gravel; 40% well
graded sand; light brown (7.5 YR 6/4); cemented in places;
dry.
Silty GRAVEL: 60% fine to coarse gravel; 40% silt; dark
reddish brown (5 YR 3/4); cemented in places; moist.
GRAVEL with Sand: 65% fine to coarse gravel; 35% well
graded sand; dark reddish brown (5 YR 3/4); cemented in
places; dry.
GRAVEL with Silt: fine to coarse; large cobbles (6 to 8
inches); brown (7.5 YR 4/4); cemented in places; dense;
moist.
SILT: 95% silt; 5% fine gravel; reddish brown (5 YR 4/3);
very stiff; moist.
SILT with Gravel: 75% silt; 25% fine to coarse gravel; reddish
brown (5 YR 4/3); cohesive; stiff; moist.
Increased gravel content.
GRAVEL with Sand: 50% well graded gravel; 35% sand;
reddish brown (5 YR 4/3); loose.
Gravelly SILT: 60% silt; 40% fine to coarse gravel, subangular
to subrounded; reddish brown (5 YR 5/3); slightly cohesive;
moist.
More cohesive and trace clay.
Less cohesive and trace sand.
0.383
0.08
0.073
0.074
0.048
0.032
0.08
0.063
0.081
0.099
0.046
0.127
0.186
0.204
0.25
0.338
0.314
0.159
0.063
Hydrated
bentonite pellets
(133 to 201 ft
bgs).
0.5
4.4
7.4
22.9
17.2
10.5
14.8
12.1
8.6
36.1
2.4
21.8
16.1
22.3
38.7
34
35.1
36.6
2.9
16.9
11.4
19.6
3.5
10.8
9.2
8.6
26
30.4
10.5
38.1
26.2
20.1
9.7
15.7
23.5
16.1
21.3
CL
GM
GW
GM
GW
GM
ML
ML
GW
ML
MW24-
GW051320-
160
MW-
24-
SB051320-
166
MW-
24-
SB051320-
170
MW-
24-
SB051320-
186
MW-
24-
SB051420-
192
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 5 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
196.7
204.0
205.0
213.0
214.0
215.0
220.0
228.0
229.0
230.0
232.0
Silty SAND: 70% sand; 30% silt; loose; wet. Possibly sluff.
8 inch boulder.
Silty GRAVEL: fine to coarse gravel, subangular to
subrounded; cohesive; moist.
Some grayish green staining and weakly cemented.
Moist to wet.
Cohesive, moist.
GRAVEL: cemented; very dense; dry.
Silty GRAVEL with Sand: 50% fine to coarse gravel; 40% silt;
10% sand; reddish brown (5 YR 5/3); cohesive; socketed
matrix; moist.
Loose, wet.
Silty GRAVEL: reddish brown (5YR 4/4); some 3 inch gravel,
round, elongated.
SILT: 90% silt; 10% gravel; reddish brown (5YR 4/4); soft;
compact; moist.
Boulder, dry.
Silty GRAVEL: 60% fine to coarse gravel; 40% silt; reddish
brown (5YR 4/4); loose; wet.
Silt GRAVEL with Sand: fine to coarse; reddish brown (5 YR
4/4); loose; moist.
Gravelly SILT: fine gravel, subangular to subrounded; reddish
brown (2.5 YR 4/4); cohesive; stiff; moist to wet.
Less Moisture.
Fine to coarse gravel, dry to moist.
GRAVEL with Sand: loose, cemented, dry. Possibly boulder.
Silty GRAVEL: fine to coarse gravel, subangular to
subrounded; stiff; moist.
GRAVEL with Sand and Silt: 60% fine to coarse gravel,
subangular to subrounded; 30% fine to coarse sand; 10% silt;
reddish brown (5 YR 4/4); loose; moist.
SILT: 75% silt; 10% sand; 10% gravel; 5%, clay; brown (7.5
YR 4/4); cohesive; wet.
0.154
0.054
0.13
0.085
0.094
0.105
0.061
0.208
0.156
0.256
0.177
0.033
0.043
0.095
0.389
0.131
0.204
0.177
0.182
0.091
0.272
#10/20 sand
filter pack (201
to 240 ft bgs).
4-inch SCH 40
0.010-slot
screen (209.5 to
239.3 ft bgs).
5.4
14
14.8
22.6
16.4
12.8
33.4
31.9
15.2
16.5
17
8.9
157
4.9
5.3
4.3
6.5
6.3
12
10.2
1.8
8.7
11.2
9.3
15.1
15.9
44.2
23.8
41.7
47.9
35
11.9
2.1
11.4
7.1
10
SM
GM
GW
GM
ML
GM
ML
GP
GW
GW
GM
ML
MW-
24-
SB051420-
202
MW-
24-
SB051420-
215
MW-
24-
GW051420-
220
MW-
24-
SB051420-
227
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 6 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
235.5
237.5
239.0
240.0
242.0
246.0
248.0
250.0
Clayey GRAVEL: 70% fine to coarse gravel, subrounded;
30% clay; brown (7.5 YR 4/4); cohesive; wet. Large cobble
(greater than 6 inch).
Silty GRAVEL with Sand: 60% fine to coarse gravel; 20% silt;
20% sand; brown (7.5 YR 4/4); loose; wet.
GRAVEL with Sand and Silt: 60% fine to coarese gravel,
subangular to subrounded; 25% sand; 15% silt; brown (7.5
YR 4/4); cemented in places; dry to moist.
Silty GRAVEL: 70% gravel; 30% silt; brown (7.5 YR 4/4);
cohesive; wet to moist.
Silt with CLAY: 85% silt; 15% clay; brown (7.5 YR 4/4); moist.
Silty GRAVEL: 70% gravel; 30% silt; brown (7.5 YR 4/4);
cohesive; wet to moist.
Sandy SILT: 60% silt; 40% sand; brown (7.5 YR 4/4);
cohesive; moist.
End of boring at 250 ft bgs.
0.222
0.17
0.183
0.133
0.056
0.314
0.278
0.102
15.8
18.7
19.1
28.4
19.1
31.2
13.4
6.2
14.4
8.4
13.9
9.8
11.7
20
21
7.8
7.2
GC
GM
GW
GM
ML
GM
ML
MW-
24-
SB051520-
239
MW-
24-
SB051520-
248
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/11/2020 - 5/15/2020
240
245
250
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-24
PAGE 7 OF 7
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
16.0
20.0
22.0
28.0
30.0
32.0
- No recovery; vacuum excavated to 10 ft bgs.
Well graded GRAVEL; 70% fine to coarse angular to
subrounded gravel; 20% fine to coarse sand; 10% silt; loose;
reddish brown (5YR 4/4); moist.
Silty GRAVEL; 50% fine to coarse angular to subrounded
gravel; 25% fine to coarse sand; 25% silt; loose; red (2.5YR
4/6); moist.
Silty GRAVEL; 50% fine to coarse angular to subrounded
gravel; 25% fine to coarse sand; 25% silt; loose; light reddish
brown (5YR 6/4); moist.
Silty GRAVEL; 40% fine to coarse angular to subrounded
gravel; 25% fine to coarse sand; 35% silt; loose; light reddish
brown (5YR 6/4); dry to moist.
Gravelly SILT; 60% low plasticity silt; 35% fine to coarse
angular to subrounded gravel; 5% fine to medium sand; firm;
dark reddish brown (5YR 3/4); dry to moist.
Gravelly SILT; 70% low plasticity silt; 25% fine gravel; 5% fine
to coarse sand; firm; light reddish brown (5YR 3/4); dry to
moist.
SILT; 80% low plasticity silt; 15% fine gravel; 5% fine to
coarse sand; firm; light reddish brown (5YR 3/4); dry to moist.
0.248
0.267
0.132
0.64
0.359
0.225
0.233
0.231
0.317
3.95
0.81
0.249
0.405
0.306
0.278
0.25
0.194
0.599
0.864
0.221
3.1
0.204
0.016
0.026
Vault with
cement surface
seal
Bentonite Grout
(3.5 to 31 ft
bgs).
6-inch stainless
steel mesh vapor
probe (28 ft
bgs).
1.3
17.6
5.3
33.6
5.4
18.9
19.8
10.7
2.8
2.4
9.4
2.4
4.5
7.7
10.2
22.7
16.1
54
34.3
18.3
27.1
11.7
3.7
4.5
GW
GM
GM
GM
ML
ML
ML
MW25-
SB042920-
14
MW25-
SB042920-
29
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Kimberly Myers
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4703.04
See Table 5
A perched groundwater zone was encountered at approx. 165 ft bgs and groundwater was encountered at approx. 200 ft bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
4/29/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 1 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
36.0
39.0
44.0
48.0
50.0
52.0
56.0
58.0
67.0
70.0
Silty GRAVEL; 40% fine to coarse angular to subrounded
gravel; 25% fine to coarse sand; 35% silt; loose; light reddish
brown (5YR 6/4); dry to moist.
SILT; 85% low plasticity silt; 15% fine to coarse gravel; firm;
light reddish brown (5YR 3/4); dry to moist.
Gravelly SILT; 70% low plasticity silt; 25% fine gravel; 5% fine
to coarse sand; firm; light reddish brown (5YR 3/4); dry to
moist.
CLAY; 70% low plasticity clay; 20% fine gravel; 10% fine to
coarse sand; brown (7.5YR 4/4); dry to moist.
CLAY; 85% low plasticity clay; 10% fine gravel; 5% fine to
coarse sand; dark reddish brown (5YR 3/4); dry to moist.
Well graded SAND; 70% fine to coarse sand; 20% silt; 10%
fine subangular to subrounded gravel; brown (7.5YR 4/4); dry
to moist.
CLAY; 70% low plasticity clay; 25% fine gravel; 5% fine to
coarse sand; brown (7.5YR 4/4); dry to moist.
Well graded SAND; 70% fine to coarse sand; 20% silt; 10%
fine subangular to subrounded gravel; brown (7.5YR 4/4); dry
to moist.
CLAY; 80% low plasticity clay; 15% fine gravel; 5% fine to
coarse sand; brown (7.5YR 4/4); dry to moist.
Well graded SAND; 70% fine to coarse well graded sand;
20% fine to coarse gravel; 10% silt; brown (7.5YR 4/4); dry to
moist.
0.088
0.011
0.036
1.09
0.044
0.339
0.445
0.435
0.392
0.244
0.479
0.317
0.209
1.59
0.104
0.246
0.399
0.361
0.191
0.634
0.567
0.101
0.099
0.11
9.66
2.7
0.072
0.056
0.174
0.424
0.085
0.514
0.202
0.177
0.148
0.059
0.005
0.318
0.091
Hydrated
bentonite pellet
seal (30 to 98 ft
bgs).
10.1
9.3
3
1.9
1.1
17.1
37.5
19.1
9.9
9.4
60.1
5.6
40.06
13.5
20.1
3.8
4.8
12.5
6.7
5.4
3.1
1.8
8.2
13.8
2.1
5
1.1
6.4
4.9
3.7
8.5
7.8
6.1
8.1
1
5.7
16.6
12.8
1.8
GM
ML
ML
CL
CL
SW
CL
SW
CL
SW
MW25-
SB042920-
35
MW25-
SB042920-
46
MW25-
SB042920-
54
MW25-
SB042920-
70
MW25-
SB042920-
73
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 2 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
77.0
79.0
80.0
89.0
91.5
92.5
94.0
95.0
100.0
103.5
104.5
105.5
107.0
110.0
112.0
115.0
CLAY; 80% low plasticity clay; 15% fine gravel; 5% fine to
coarse sand; brown (7.5YR 4/4); dry to moist.
CLAY; 70% low plasticity clay; 15% fine gravel; 15% fine to
coarse sand; brown (7.5YR 4/4); dry to moist.
Well graded GRAVEL; 70% fine subangular to subrounded
gravel; 25% fine to medium sand; 5% silt; compact; reddish
brown (5YR 4/3); dry to moist.
CLAY; 95% low plasticity clay; 5% fine to medium sand;
brown (7.5YR 4/4); dry to moist.
CLAY; 85% low plasticity clay; 15% fine to medium sand; 5%
fine to coarse gravel; brown (7.5YR 4/4); dry to moist.
Clayey GRAVEL; 60% fine to coarse subangular to
subrounded well graded gravel; 30% low plasticity clay; 10%
fine sand; reddish brown (5YR 4/3); dry to moist.
Sandy GRAVEL; 50% fine to coarse subangular to
subrounded gravel; 35% fine to coarse sand; 15% silt;
compact; pinkish gray (5YR 7/2); dry to moist.
Well graded GRAVEL; 70% fine subangular to subrounded
gravel; 25% fine to medium sand; 5% silt; compact; reddish
brown (5YR 4/3); moist.
Sandy GRAVEL; 50% fine to coarse subangular to
subrounded gravel; 35% fine to coarse sand; 15% silt;
compact; pinkish gray (5YR 7/2); dry to moist.
Gravelly CLAY; 55% low plasticity clay; 10% medium to
coarse sand; 35% fine to coarse gravel; reddish brown (2.5YR
4/4); dry to moist.
Well graded SAND; 55% fine to coarse sand; 10% silt; 35%
fine subangular to subrounded gravel; red (2.5YR 4/6); dry to
moist.
Gravelly CLAY; 55% low plasticity clay; 10% medium to
coarse sand; 35% fine to coarse gravel; reddish brown (2.5YR
4/4); dry to moist.
-no recovery
Gravelly CLAY; 50% low plasticity clay; 45% fine to coarse
gravel; 5% medium to coarse sand; firm; yellowish red (5YR
4/6); moist.
CLAY; 70% low plasticity clay; 20% fine to coarse gravel; 10%
medium to coarse sand; firm; reddish brown (5YR 4/3); moist.
0.024
0.065
0.086
0.032
0.005
0.718
0.015
0.015
0.093
0.195
0.131
0.188
0.014
0.032
0.569
0.428
0.059
0.056
0.187
0.554
0.465
0.331
0.28
0.151
0.228
0.393
0.025
0.362
0.071
0.91
0.453
0.052
0.139
0.375
Hydrated
bentonite pellet
seal (30 to 98 ft
bgs).
6-inch stainless
steel mesh vapor
probe (100 ft
bgs).
4.6
8.1
2.2
1.6
3.1
3.1
36
25.6
0.1
3.1
4.2
31
7.8
11.6
15.3
12.4
23.2
28.7
67.4
24.4
12.3
43.1
4.7
14.6
30
283.2
249.1
321.4
102.5
262.7
57.1
33.4
63.4
2.1
48
CL
CL
GW
CL
CL
GC
GW
GW
GW
CL
SW
CL
CL
CL
MW25-
SB042920-
82
MW25-
SB042920-
94
MW25-
SB043020-
106
MW25-
SB043020-
112
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 3 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
116.0
118.5
120.0
126.0
137.0
139.0
140.0
143.0
148.0
151.5
Gravelly CLAY; 50% low plasticity clay; 45% fine to coarse
gravel; 5% medium to coarse sand; firm; yellowish red (5YR
4/6); moist.
Gravelly SAND; 50% fine to coarse well graded sand; 40%
fine gravel; 10% silt; compact; yellowish red (5YR 4/6); moist.
Well graded GRAVEL; 70% fine subangular to subrounded
gravel; 20% fine to medium sand; 10% silt; compact;
yellowish red (5YR 4/3); moist.
CLAY; 70% low plasticity clay; 20% fine to coarse gravel; 10%
medium to coarse sand; firm; reddish brown (5YR 4/3); moist.
Gravelly SAND; 55% fine to coarse well graded sand; 25%
fine gravel; 20% silt; compact; yellowish red (5YR 4/6); moist.
Sandy SILT; 60% non-plastic silt; 30% fine to coarse well
graded sand; 10% coarse; firm; reddish brown (5YR 5/4);
moist.
-no recovery
CLAY; 90% medium to high plasticity clay; 10% medium to
coarse sand; firm; brown (7.5YR 4/3); dry to moist.
CLAY; 70% low plasticity clay; 20% fine to coarse sand; 10%
coarse sand; firm; reddish brown (5YR 4/3); moist.
-cobbles
Sandy SILT; 50% non-plastic silt; 35% fine sand; 15% fine to
coarse gravel; soft; light brown (7.5YR 6/3); dry.
Gravelly CLAY; 55% low plasticity clay; 45% fine to coarse
angular to subrounded well graded gravel; brown (7.5YR 5/4);
moist
0.313
0.322
0.358
0.303
0.479
0.083
0.106
0.108
0.248
0.06
0.017
0.166
0.001
0.126
0.068
0.12
0.266
0.018
0.186
0.216
0.04
0.012
0.01
0.005
0.355
1.37
0.808
0.334
0.372
0.368
0.16
0.281
0.238
0.204
0.033
0.093
0.092
0.156
0.156
Hydrated
bentonite pellet
seal (103 to 197
ft bgs).
22.6
22.6
27.3
25.9
27.2
17.8
13.6
5.3
5.8
11.9
12.4
3.7
10.1
5.5
7.6
14.1
24
11.6
48.4
41.4
18.8
37
20.9
66.4
8.4
9.1
6.5
5.2
3.5
5.3
1.6
7.1
4
8.3
12.2
5.2
17.4
7.2
15.5
CL
SW
GW
CL
SW
ML
CH
CL
ML
CL
MW25-
SB043020-
120
MW25-
SB043020-
139
MW25-
SB043020-
150
MW25-
SB050120-
153
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 4 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
158.0
167.0
170.0
172.0
177.0
178.0
180.0
182.5
186.0
188.0
192.0
193.5
194.5
Silty GRAVEL; 50% fine angular to subrounded poorly graded
gravel; 25% silt; 25% fine to coarse sand; brown (7.5YR 5/4);
moist
Well graded GRAVEL; 60% fine to coarse subangular to
subrounded gravel; 30% fine to medium sand; 10% silt;
compact; brown (7.5YR 4/3); moist.
CLAY; 80% low plasticity clay; 10% fine sand; 10% fine
gravel; soft; reddish brown (5YR 5/3); moist
-increase sand
Poorly graded SAND; 70% fine to coarse sand; 20% fine to
coarse gravel; 10% silt; loose; reddish brown (2.5YR 4/4); dry
to moist.
Sandy CLAY; 65% low plasticity clay; 35% fine sand;
yellowish red (5YR 4/6); dry to moist.
Gravelly CLAY; 70% low plasticity clay; 30% fine to coarse
well graded gravel; yellowish red (5YR 4/6); dry to moist.
Sandy CLAY; 60% low plasticity clay; 25% fine sand; 10%
fine gravel; reddish brown (5YR 4/4); moist.
Clayey SAND; 50% fine to coarse well graded sand; 25% low
plasticity clay; 25% fine to coarse gravel; brown (7.5YR 5/4);
moist.
Gravelly CLAY; 50% low plasticity clay; 30% fine to coarse
well graded gravel; 20% fine sand; reddish brown (5YR 4/4);
moist.
Clayey SAND; 50% fine to coarse well graded sand; 25% low
plasticity clay; 25% fine to coarse gravel; brown (7.5YR 5/4);
moist.
Gravelly CLAY; 50% low plasticity clay; 30% fine to coarse
subangular to subrounded well graded gravel; 20% fine sand;
brown (7.5YR 4/4); moist.
Clayey GRAVEL; 60% fine to coarse angular to subrounded
0.335
0.251
0.265
0.189
0.159
0.143
0.174
0.218
0.178
0.26
0.221
0.243
0.114
0.127
0.167
0.184
0.102
0.278
0.236
0.172
0.119
0.119
0.878
0.373
0.216
0.274
0.2
0.131
0.168
0.109
0.12
0.172
0.126
0.476
0.343
0.216
0.369
0.333
Hydrated
bentonite pellet
seal (103 to 197
ft bgs).
19.2
9
3
6.3
4.6
0.6
4.2
2.3
2.7
11.4
3.3
3.8
1.5
0.7
10.4
12.2
14.6
7.1
5.5
7.2
1.8
32.4
22.3
6.8
6.8
2.3
15.5
5.9
34.2
24.2
49.3
33.4
13.6
30.5
8.6
22.1
2.6
79.2
64.4
GM
GW
CL
SP
CL
CL
CL
SC
CL
SC
CL
GC
MW25-
GW050120-
164
MW25-
GW050120-
164
MW25-
SB050120-
166
MW25-
SB050120-
176
MW25-
SB050120-
187
MW25-
SB050120-
193
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 5 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
198.5
200.5
205.5
208.0
210.0
215.0
218.5
220.0
221.0
225.5
228.0
230.0
231.0
233.0
gravel; 25% low plasticity clay; 15% fine sand; loose; light
brown (7.5YR 4/4); dry to moist
Gravelly CLAY; 50% low plasticity clay; 30% fine to coarse
subangular to subrounded well graded gravel; 20% fine sand;
brown (7.5YR 4/4); moist.
CLAY; 80% low plasticity clay; 15% coarse subangular to
subrounded well graded gravel; 5% fine sand; brown (7.5YR
4/4); moist.
Sandy CLAY; 60% low plasticity clay; 25% fine sand; 10%
fine to coarse subangular to subrounded gravel; brown
(7.5YR 4/4); moist.
-No recovery; wet
Sandy CLAY; 60% low plasticity clay; 40% fine to coarse well
graded sand; trace gravel; brown (7.5YR 4/4); wet.
Gravelly CLAY; 70% non-plastic clay; 20% coarse gravel;
10% fine to coarse sand; reddish (5YR 4/4); moist.
-increase gravel
Clayey GRAVEL; 60% fine to coarse angular to subrounded
gravel; 15% low plasticity clay; 25% fine sand; loose; reddish
brown (5YR 5/4); moist to wet
CLAY; 95% low plasticity clay; 5% fine sand; cohesive;
reddish brown (5YR 4/4); moist.
Well graded GRAVEL; 65% fine to coarse angular to
subrounded gravel; 15% low plasticity clay; 20% fine sand;
compact; reddish brown (5YR 5/4); wet
Clayey GRAVEL; 40% fine to coarse angular to subrounded
gravel; 35% low plasticity clay; 25% fine sand; compact;
reddish brown (5YR 5/4); moist to wet.
CLAY; 80% low plastcity clay; 10% fine sand; 10% coarse
gravel; stiff; reddish brown (5YR 5/4); moist to wet.
Well graded GRAVEL; 65% fine to coarse angular to
subrounded gravel; 15% low plasticity clay; 20% fine sand;
compact; reddish brown (5YR 5/4); wet
Well graded GRAVEL; 60% fine to coarse angular to
subrounded gravel; 20% low plasticity clay; 20% fine sand;
cohesive; compact; reddish brown (5YR 5/4); moist.
Gravelly SAND; 50% fine to coarse well graded sand; 40%
fine to coarse gravel; 10% clay; compact; yellowish red (5YR
4/6); moist.
Well graded GRAVEL; 80% fine to coarse angular to
0.347
0.63
0.211
0.426
0.276
0.275
0.072
0.105
0.222
0.035
0.028
0.249
0.089
0.276
0.111
0.112
0.035
0.058
0.134
0.019
0.065
0.203
0.331
0.265
0.142
0.28
0.052
0.094
0.16
0.57
0.6
0.509
0.171
0.071
0.285
0.343
0.067
#10/20 sand
filter pack (197
to 214 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (201
to 211 ft bgs).
Hydrated
bentonite pellet
seal (214 to 226
ft bgs).
#10/20 sand
filter pack (226
to 244 ft bgs).
18.4
23.6
18.2
18.6
29.8
1.3
8.8
7.1
7.4
13.9
6.7
1.6
10.8
11.7
3.5
31.3
31.6
41.6
44.6
8.4
15.9
7.5
0.9
1.5
1.7
2.8
1.9
0.6
0.6
0.6
0.6
0.6
2.4
5.6
4.9
3.7
2.3
CL
CL
CL
CL
CL
GC
CL
GW
GC
CL
GW
GW
SW
GW
MW25-
SB050120-
205
MW25-
GW050320-
212
MW25-
SB050320-
216
MW25-
SB050320-
223
MW25-
GW050320-
232
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 6 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
236.0
236.5
240.0
244.0
246.0
250.0
255.0
258.0
259.0
262.0
271.0
subangular gravel; 10% low plasticity clay; 10% fine sand;
cohesive; compact; reddish brown (5YR 5/4); moist.
Gravelly SAND; 50% fine to coarse well graded sand; 40%
fine to coarse gravel; 10% clay; cemented; compact; reddish
brown (5YR 4/4); moist.
CLAY; 75% low to medium plasticity clay; 20% fine gravel;
5% fine sand; firm to stiff; reddish brown (5YR 4/4); moist.
CLAY; 80% low to medium plasticity clay; 15% fine gravel;
5% fine sand; firm to stiff; reddish brown (5YR 4/4); moist.
CLAY; 75% low to medium plasticity clay; 20% fine gravel;
5% fine sand; firm to stiff; reddish brown (5YR 4/4); moist.
Well graded GRAVEL; 50% fine to coarse angular to
subangular gravel; 20% low plasticity clay; 30% fine sand;
cohesive; compact; reddish brown (5YR 5/4); moist.
- increase gravel
Well graded GRAVEL; 50% fine to coarse angular to
subangular gravel; 20% low plasticity clay; 30% fine sand;
cohesive; compact; reddish brown (5YR 5/4); moist.
CLAY; 60% medium plasticity clay; 25% fine to coarse
subangular to subround gravel; 15% fine to coarse sand; light
brown (7.5YR 6/3); moist.
CLAY; 80% low to medium plasticity clay; 20% fine gravel;
firm to stiff; reddish brown (5YR 4/4); moist.
CLAY; 80% low to medium plasticity clay; 15% fine gravel;
5% fine sand; firm to stiff; reddish brown (5YR 4/4); moist.
CLAY; 90% low plasticity clay; 10% fine subrounded gravel;
firm to stiff; reddish brown (5YR 4/4); moist.
CLAY; 85% low plasticity clay; 10% fine subangular to
subrounded gravel; 5% fine sand; firm to stiff; yellowish red
(5YR 4/6); moist.
0.129
0.309
0.101
0.259
0.391
0.277
0.436
0.36
0.074
0.149
0.105
0.198
0.121
0.112
0.118
0.11
0.208
0.207
0.365
0.108
0.123
0.567
0.503
0.2
0.133
0.125
0.074
0.115
0.163
0.289
0.005
0.155
0.097
0.27
0.42
0.037
0.648
0.02
0.282
0.253
1-inch SCH 80
0.020-slot
screen ZIST
nested well (231
to 241 ft bgs).
Hydrated
bentonite pellet
seal (103 to 197
ft bgs).
7.3
4.3
2.3
1.8
6.7
0.2
2.3
2.1
3
1.8
10.4
7.6
4.7
4.7
1
2.2
11.5
4.3
7.5
8.2
3.3
2.1
3.9
1.6
4.7
11.8
20.2
20.9
25.5
25.5
8.5
20.5
18.7
2.6
5.8
7.5
17.2
7.9
10.9
16.9
SW
CL
CL
CL
GW
GW
CL
CL
CL
CL
CL
MW25-
SB050320-
235
MW25-
SB050320-
246
MW25-
GW050320-
252
MW25-
SB050320-
252
MW25-
SB050420-
264
MW25-
GW050420-
272
MW25-
SB050520-
272
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 7 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
276.0
282.0
286.0
297.0
298.0
300.0
302.0
308.0
310.0
311.0
CLAY; 100% low plasticity clay; firm to stiff; yellowish red
(5YR 4/6); moist.
CLAY; 95% low plasticity clay; 15% fine subrounded to
subangular gravel; firm to stiff; yellowish red (5YR 4/6); moist.
CLAY; 100% low plasticity clay; firm to stiff; yellowish red
(5YR 4/6); moist.
-trace fine gravel
Well graded SAND and GRAVEL; 50% fine sand; 50% fine
gravel; cemented; dry
CLAY; 100% low plasticity clay; firm to stiff; yellowish red
(5YR 4/6); moist.
Silty GRAVEL; 60% fine to coarse angular to subangular
gravel; 30% silt; 10% fine to coarse sand; reddish brown (5YR
4/4); moist
- no recovery; driller notes it was wet sand and gravel
Clayey SAND; 70% fine to coarse well graded sand; 25%
clay; 5% fine gravel; reddish brown (2.5YR 4/4); wet.
Silty GRAVEL; 70% fine to coarse gravel; 20% silt; 10% fine
sand; reddish brown (5YR 5/3); dry
Gravelly CLAY; 75% low to medium plasticity clay; 20% fine
to coarse subangular to subrounded gravel; 5% fine sand;
cohesive; stff; reddish brown (5YR 4/4); dry to moist.
0.419
0
0
0.419
0.413
0.317
0.196
0.144
0.458
0.374
0.503
0.315
0.201
0.007
0.099
0.057
0.253
0.419
0.347
0.421
0.392
0.274
0.082
0.281
0.125
0.232
0
0.124
0.377
0.746
0.271
0.656
0.486
0.618
Hydrated
bentonite pellet
seal (244 to 305
ft bgs).
#10/20 sand
filter pack (305
to 319.8 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well
(307.5 to 317.5
ft bgs).
1.6
1.7
1.2
2.3
2.5
7.2
7.1
2.1
3.2
2.6
2.2
4.7
0.9
3.8
3.6
0
0
0
1.5
12.3
6.2
7.9
9.5
14.8
16.1
0.5
0.3
0
0
5.1
65.2
29.4
8.6
3.9
CL
CL
CL
GW
CL
GM
SC
GM
CL
MW25-
SB050520-
281
MW25-
GW050520-
292
MW25-
SB050520-
299
MW25-
SB050520-
301
MW25-
SB050620-
312
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
280
285
290
295
300
305
310
315
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 8 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
318.0
320.0
-increase gravel
Silty GRAVEL; 70% fine to coarse gravel; 20% silt; 10% fine
sand; pink (5YR 7/3); dry to moist.
End of boring at 320 ft bgs.
0.662
0.124
0.36
0.193
0.096
14.1
42.5
17.1
53
29.9 GMMW25-
GW050620-
320
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/29/2020
320
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-25
PAGE 9 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
14.0
18.0
20.0
24.5
30.0
Hydrovac 0-10' bgs; no recovery.
Poorly graded GRAVEL; 80% coarse gravel; 20% silt; strong
brown (7.5YR 4/6); dry.
Silty GRAVEL; 70% coarse angular gravel; 30% silt; strong
brown (7.5YR 4/6); dry.
Gravelly SILT; 60% low plasticity silt; 40% fine to coarse
subangular gravel; pinkish gray (7.5YR 7/2); dry.
Gravelly SILT; 70% low plasticity silt; 30% fine to coarse
subangular to rounded gravel; brown (7.5YR 6/4); dry.
Gravelly SILT; 60% low plasticity silt; 40% fine subangular
gravel; light brown (7.5YR 6/4); dry.
Poorly graded GRAVEL; 85% fine to coarse gravel; 15% silt;
compact; light brown (7.5YR 4/4); dry.
0.015
0.0
0.0
0.0
0.044
0.0
0.0
0.0
0.0
0.0
Vault with
cement surface
seal
Bentonite Grout
(4 to 34 ft bgs).
1.6
9.1
6.7
4.5
2.5
9.5
3.8
12.6
5.0
76.0
131.5
69.6
22.3
27.7
31.1
77.8
3.0
9.0
2.0
3.0
7
GP
GM
ML
ML
ML
MW26-
SB042220-
20
MW26-
SB042220-
24
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Betsy Bott, Joe Miller, Ben Carreon
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4713.25
See Table 5
Groundwater was encountered at approximately 190 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
4/22/2020-5/11/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 1 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
40.0
44.0
45.0
48.0
52.0
57.0
58.5
60.0
64.0
68.0
70.0
72.0
Poorly graded GRAVEL; 90% fine to coarse subangular
gravel; 10% silt; dense; light brown (7.5YR 6/3); dry.
Silty GRAVEL; 60% fine to coarse angular poorly graded
gravel; 40% silt; brown (7.5YR 4/4); dry.
Gravelly SILT; 70% silt; 30% fine gravel; light brown (7.5YR
6/3); dry.
Silty GRAVEL; 60% fine to coarse angular poorly graded
gravel; 40% silt; brown (7.5YR 4/4); dry.
Silty CLAY; 80% low to medium plasticity silty clay; 20% fine
gravel; stiff; brown (7.5YR 4/4); dry to moist.
SILT; 90% low plasticity silt; 10% fine gravel; soft; Brown
(7.5YR 4/4); dry to moist.
Silty CLAY; 80% low to medium plasticity silty clay; 20% fine
gravel; stiff; brown (7.5YR 4/4); dry to moist.
Silty GRAVEL; 60% coarse subangular poorly graded gravel;
40% silt; loose; brown (7.5YR 4/4); dry.
Gravelly CLAY; 60% clay; 40% fine subangular gravel; stiff;
brown (7.5YR 4/4); dry to moist.
Gravelly CLAY; 75% clay; 25% fine subangular gravel; stiff;
brown (7.5YR 4/4); dry to moist.
Silty GRAVEL; 60% coarse subangular poorly graded gravel;
40% silt; loose; brown (7.5YR 4/4); dry.
Silty GRAVEL; 70% coarse angular poorly graded gravel; 30%
clayey silt; compact; brown (7.5YR 4/4); dry.
0.0
0.01
.45
.29
0.264
0.483
0.09
0.21
0.08
0.156
0.26
0.07
0.18
0.080
0.105
0.130
.260
0.000
0.000
Hydrated
bentonite pellet
seal (34 to 201 ft
bgs).
11
13.0
16.0
64.1
61.7
90.3
139.8
156
115
25
43.6
27.7
14.3
5.6
11.1
12.5
18.5
16.4
21.5
30.0
15.2
16.3
13.0
1.3
6.5
3.2
0.6
0.130
3.2
1.5
1.2
9.5
6.0
9.8
11.2
GP
GP
GM
ML
GM
CL
ML
CL
GM
CL
CL
GM
MW26-
SB042220-
39
MW26-
SB042320-
44
MW26-
SB042320-
56
MW26-
SB042320-
62
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 2 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
78.0
80.0
90.0
92.0
100.0
101.5
103.5
107.5
109.0
110.0
111.5
114.0
Silty GRAVEL; 70% fine to coarse angular poorly graded
gravel; 30% silt; loose; brown (7.5YR 4/4); dry.
Poorly Graded GRAVEL; 80% fine to coarse subangular to
angular gravel; 10% fine sand; 10% silt; loose; light brown
(7.5YR 6/3); dry
Clayey GRAVEL: 60% coarse gravel; 40% med plasticity clay;
compact; brown (7.5YR 4/4); dry to moist.
Poorly Graded GRAVEL; 80% fine to coarse subangular to
rounded gravel; 10% silt; 10%fine to medium sand; loose;
brown (7.5YR 4/3); dry to moist.
Poorly Graded GRAVEL; 80% fine to coarse subangular to
subrounded gravel; 10% clay; 10% fine to medium sand;
loose; brown (7.5YR 4/4); dry to moist.
GRAVEL and SAND; 40% fine to coarse subangular to
subrounded well graded gravel; 40% fine to coarse sand; 20%
clay; brown (7.5YR 5/4); moist.
Clayey GRAVEL; 50% fine to coarse subangular to
subrounded well graded gravel; 25% clay; 25% fine to coarse
sand; cohesive in places; reddish brown (5YR 4/4); moist.
CLAY; 85% low plasticity clay, 10% coarse gravel; 5% fine
sand; brown (7.5YR 5/4); moist to wet.
Well graded SAND; 75% fine to coarse sand; 15% fine gravel;
10% clay; cemented in places, brown (7.5YR 5/4); moist to
dry.
Clayey GRAVEL; 65% fine to coarse subrounded gravel; 30%
low plasticity clay; 5% fine sand; yellowish red (5YR 4/4);
moist.
Silty GRAVEL; 60% coarse subrounded to subangular poorly
graded gravel; 40% silt; loose; light brown (7.5YR 6/4); dry.
Well graded GRAVEL; 60% fine to coarse angular to
0.140
0.222
0.160
0.100
0.145
0.170
0.220
0.180
0.054
0.100
0.137
1.43
0.928
0.516
1.27
0.387
0.285
0.212
0.230
0.070
0.276
Hydrated
bentonite pellet
seal (34 to 201 ft
bgs).
11.9
14.8
5.3
7.0
15.1
21.9
27.3
39.4
19.5
18.2
6.5
21.2
4.8
7.1
7.6
9.1
10.7
12.1
8.8
7.9
10.0
6.8
16.2
3.7
10.9
5.0
1.1
5.2
1.5
6.5
19.4
15.9
GM
GM
GP
GC
GP
GP
GW
GC
CL
SW
GC
GM
MW26-
SB042320-
77
MW26-
SB042320-
84
MW26-
SB042320-
97
MW26-
SB050420-
103
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 3 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
120.0
126.0
128.5
130.0
131.0
134.0
136.5
145.0
150.0
subrounded gravel; 25% fine to coarse sand; 15% silt;
compact; moderately cemented in places; brown (7.5YR 5/4);
moist.
Well graded GRAVEL; 60% fine to coarse angular to
subrounded gravel; 25% fine to coarse sand; 15% silt;
compact; weak to moderately cemented in places; reddish
brown (5YR 5/4); moist.
Well graded SAND; %60 Fine to coarse sand; 40% fine to
coarse gravel; loose; reddish brown (5YR 4/4); moist.
Clayey GRAVEL; 60% fine to coarse gravel; 40% clay; very
dense; moderately cemented; reddish brown (5YR 4/4); moist.
Silty GRAVEL; 70% Fine to coarse gravel; 20% silt; 10% fine
sand; loose; reddish brown (5YR 4/4); dry.
Well graded GRAVEL; 70% fine to coarse gravel; 15% silt;
15% fine sand; slighty cohesive; brown (7.5YR 5/4); moist.
Silty GRAVEL; 60% fine to coarse subrounded to subangular
gravel; 30% silt; 10% fine sand; weakly cemented in places;
brown (7.5YR 5/3); moist.
Poorly graded GRAVEL; 60% coarse subrounded to
subangular poorly graded gravel; 30% fine sand; 10% silt;
loose; reddish brown (2.5YR 4/4); moist.
Poorly graded SAND; 60% fine to coarse sand; 30% fine
gravel; 10% silt; loose; reddish brown (5YR 4/4/); moist.
Well graded SAND; 50% fine to coarse sandl; 40% fine to
coarse subangular to subrounded gravel; 10% low plasticity
clay; reddish brown (5YR 5/4); dry.
0.170
0.071
3.54
0.188
0.214
0.163
0.239
0.204
0.255
0.157
0.094
0.118
0.225
0.454
0.290
0.294
0.137
0.071
0.264
0.233
0.145
0.097
0.152
0.120
0.101
0.163
0.205
0.182
0.143
Hydrated
bentonite pellet
seal (34 to 201 ft
bgs).
36.4
53.6
7.6
7.1
109.1
5.0
54.3
10.6
15.4
10.2
10.5
4.2
1.9
6.3
24.7
13.2
24.7
16.4
27.3
6.1
9.2
10.9
2.4
4.4
4.5
12.8
8.7
5.0
8.7
17.0
4.2
5.2
12.1
6.7
7.0
3.9
14.7
GW
GW
SW
GC
GM
GW
GM
GP
SP
SW
MW26-
SB050420-
116
MW26-
SB050420-
119
MW26-
SB050420-
129
MW26-
SB050420-
133
MW26-
SB050420-
145
MW26-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 4 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
156.0
159.0
160.0
162.5
165.0
170.0
175.5
178.0
179.0
181.0
184.0
187.5
193.5
Poorly graded GRAVEL; 50% coarse subrounded to
subangular poorly graded gravel; 30% fine sand; 20% low
plasticity clay; loose; light reddish brown (5YR 6/3); dry.
CLAY; 50% low plasticity clay; 20% fine to coarse angular to
subrounded gravel; 20% fine sand; reddish brown (5YR 4/4);
dry to moist.
Well graded SAND; 70% fine to coarse sand; 25% fine to
coarse subangular to subrounded gravel; 5% low plasticity
clay; loose; reddish brown (5YR 4/4); moist.
Clayey GRAVEL; 60% fine angular to subrounded gravel;
25% low plasticity clay; 15% fine to coarse sand; reddish
brown (5YR 4/4); dry to moist.
Well graded SAND; 50% fine to coarse sand; 40% fine to
coarse angular to subrounded gravel; 10% low plasticity clay;
loose; reddish brown (5YR 4/4); dry to moist.
Poorly graded GRAVEL; 50% fine to coarse gravel; 35% fine
to medium sand; 15% silt; loose; reddish brown (5YR 4/4);
dry to moist.
Silty SAND; 60% fine to coarse poorly graded sand; 30% silt;
10% fine to coarse gravel; reddish brown (5YR 4/4); moist.
Silty SAND; 70% fine sand; 25% silt; 5% fine gravel; reddish
brown (5YR 4/4); moist.
Gravelly SILT; 70% silt; 30% fine to coarse gravel; cemented
in places; cohesive; reddish brown (5YR 4/4); moist.
Gravelly CLAY; 60% low plasticty clay; 40% fine to coarse
gravel; cohesive; stiff; reddish brown (5YR 4/4); moist.
Silty GRAVEL; 65% fine to coarse subrounded to subangular
gravel; 35% silt; loose; brown (7.5YR 5/3); moist.
Gravelly CLAY; 70% low plasticty clay; 30% fine to coarse
gravel; cohesive; stiff; yellowish red (5YR 4/6); moist to wet.
-becomes wet
Poorly graded GRAVEL; 50% fine to coarse gravel; 30% fine
sand; 20% low plasticity clay; cohesive in places; reddish
0.357
0.353
0.371
0.125
0.216
0.105
0.107
0.111
0.201
0.174
0.120
0.152
0.839
0.162
0.318
0.013
0.344
0.153
0.104
0.083
0.200
0.114
1.49
0.137
0.038
0.185
0.317
0.020
0.405
0.279
0.135
0.167
0.104
0.076
Hydrated
bentonite pellet
seal (34 to 201 ft
bgs).
9.0
8.1
3.8
9.2
1.2
5.6
12.2
4.6
11.3
4.1
5.1
33.1
12.8
13.1
74.0
72.7
36.1
22.9
6.6
5.4
2.0
3.5
18.1
5.3
7.3
11.8
5.5
5.9
40.5
26.2
18.0
5.4
7.5
4.1
GP
CL
SW
GC
SW
GP
SM
SM
ML
CL
GM
CL
GP
SB050520-
154
MW26-
SB050520-
168
MW26-
SB050520-
172
MW26-
SB050520-
188
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 5 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
196.0
205.0
215.0
217.0
219.0
220.5
228.0
230.0
brown (5YR 4/4); wet.
Clayey GRAVEL; 65% fine to coarse angular to subrounded
gravel; 30% low to medium plasticity clay; cohesive; reddish
brown (5YR 4/4); wet.
-moist to wet
-wet
CLAY; 80% medium to high plasticity clay; 10% silt; 10%
coarse gravel; cohesive; reddish brown (5YR 4/4); dry to
moist.
Well Graded GRAVEL; 70% fine to coarse subangular to
rounded gravel; 20% fine to coarse sand; 10% silt; weakly
cemented; dry.
Clayey SILT; 70% silt; 30% medium to high plasticity clay;
cohesive; stiff; reddish brown (5YR 5/4); dry to moist.
SAND and GRAVEL; 50% fine to coarse sand; 50% fine to
coarse gravel; well graded; medium dense; weakly cemented;
reddish brown (5YR 4/4).
Silty GRAVEL; 70% Fine to coarse gravel; 20% silt; 10% fine
to medium sand; brown (7.5YR 5/3); dry.
- 1.5-ft boulder
Silty SAND; 50% fine to coarse sand; 30% silt; 20% fine to
coarse gravel; reddish brown (5YR 4/3); wet.
Silty CLAY; 50% Low plasticity clay; 30% silt; 20% fine to
coarse gravel; stiff; cohesive; reddish brown (2.5YR 4/4);
moist.
0.016
0.042
0.003
0.040
0.199
0.195
0.254
0.200
0.250
0.407
0.444
0.540
0.373
0.380
0.065
0.072
0.020
0.185
0.083
0.009
0.406
0.524
0.179
0.117
0.107
0.049
0.190
0.270
0.267
0.250
0.240
0.091
0.174
0.214
#10/20 sand
filter pack (201
to 218 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (205
to 215 ft bgs).
Hydrated
bentonite pellet
seal (218 to 231
ft bgs).
#10/20 sand
filter pack (231
to 250 ft bgs).
28.1
13.0
8.3
20.7
5.4
6.4
0.9
3.5
4.0
1.3
1.8
2.3
0.8
1.0
5.0
13.7
13.7
13,1
16.4
22.4
9.7
4.7
10.1
140
6.7
10.0
4.8
2.4
0.3
1.8
3.1
1.6
1.1
12.0
GC
CH
GW
MH
SW
GM
SM
CL
MW26-
SB050520-
195
MW26-
SB050620-
201
MW26-
GW050620-
210
MW26-
SB050620-
215
MW26-
SB050620-
221
MW26-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 6 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
236.5
245.0
247.5
249.0
250.0
253.0
258.0
263.0
264.5
267.0
271.0
Silty SAND; 50% fine to medium well graded sand; 30% silt;
20% fine to coarse gravel; dense; reddish brown (2.5YR 4/4);
wet.
Clayey SILT; 60% low plasticity silt; 30% clay; 10% fine to
coarse gravel; stiff; reddish brown (5YR 5/4); dry to moist.
SILT; 100% low plasticity silt; very dense; weakly cemented to
cemented; light reddish brown (5YR 6/4); dry.
Silty CLAY; 50% low plasticity clay; 30% silt; 20% fine to
coarse gravel; soft to stiff; reddish brown (5YR 5/4); moist.
Sandy GRAVEL; 50% fine to coarse gravel; 40% fine sand;
10% silt; loose; pink (5YR 7/4); dry.
Clayey SILT; 60% low plasticity silt; 20% clay; 20% coarse
gravel; firm to stiffl reddish brown (5YR 4/4); dry.
- becomes moist
Gravelly SAND; 50% fine to coarse well graded sand; 40%
fine gravel; 10% silt; loose; reddish brown (5YR 5/4); moist.
Silty CLAY; 60% low plasticity clay; 30% silt; 10% fine gravel;
very stiff; reddish brown (5YR 5/4); dry to moist.
Gravelly SILT; 70% low plasticty silt; 30% fine to coarse
gravel; soft; reddish brown (5YR 4/4); moist.
Gravelly SILT; 50% low plasticty silt; 30% fine to coarse
gravel; 20% clay; firm to stiff; reddish brown (5YR 4/4); moist.
Silty CLAY; 70% medium plasticity clay; 20% silt; 10%
coarse gravel; soft; reddish brown (5YR 5/4); dry.
0.252
0.228
0.195
0.192
0.409
0.072
0.163
0.052
0.468
0.150
0.082
0.161
0.308
0.204
0.197
0.227
0.263
0.688
0.304
0.407
0.114
0.158
0.145
0.101
0.034
0.192
0.158
0.347
0.771
0.511
0.635
0.429
0.354
1-inch SCH 80
0.020-slot
screen ZIST
nested well (235
to 245 ft bgs).
3.8
1.2
2.1
5.7
0.2
0.3
3.8
0.9
5.6
27.6
0.8
16.2
4.4
13.9
6.0
9.6
2.8
0.9
2.3
12.3
0.7
0.6
0.8
1.2
0.3
0.1
4.9
4.9
9.1
10.4
8.6
11.0
2.4
SM
ML
ML
CL
GW
ML
SW
CL
ML
ML
CH
SB050620-
234
MW26-
GW050720-
240
MW26-
SB050720-
247
MW26-
GW050720-
250
MW26-
SB050720-
251
MW26-
SB050720-
269
MW26-
GW050820-
270
MW26-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 7 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
276.0
277.0
280.0
290.0
292.0
299.0
299.5
300.0
302.0
307.0
310.0
315.0
Clayey SILT; 70% low plasticity silt; 30% clay; firm; weakly
cemented; reddish brown (5YR 5/4); dry.
Clayey SILT; 70% low plasticity silt; 30% clay; stiff; reddish
brown (5YR 5/4); dry.
Clayey SILT; 70% low plasticity silt; 20% clay; 10% fine to
coarse gravel; non-cohesive; soft; reddish brown (5YR 5/4);
dry to moist.
Clayey SILT; 50% low plasticity silt; 40% clay; 10% fine to
coarse gravel; non-cohesive; soft; reddish brown (5YR 5/4);
dry to moist.
Silty CLAY; 50% low to medium plasticity clay; 40% silt; 10%
fine to coarse gravel; non-cohesive; firm to stiff; reddish
brown (5YR 4/4); dry.
Silty CLAY; 50% low to medium plasticity clay; 40% silt; 10%
fine to coarse gravel; non-cohesive; stiff to very stiff; reddish
brown (5YR 4/4); dry.
Silty CLAY; 50% low to medium plasticity clay; 40% silt; 10%
fine to coarse gravel; non-cohesive; firm to stiff; reddish
brown (5YR 4/4); dry.
Silty CLAY; 70% medium plasticity clay; 20% silt; 10% fine to
coarse gravel; cohsive; stif; reddish brown (5YR 4/4); wet.
Silty CLAY; 70% low to medium plasticity clay; 20% silt; 10%
fine to coarse gravel; cohsive; stif; reddish brown (5YR 4/4);
moist.
Gravelly CLAY; 40% low plasticity clay; 30% fine to coarse
gravel; 20% coarse gravel; 10% silt; soft; non-cohesive;
reddish brown (5YR 4/4) with pale brown mottling; dry to
moist.
Silty CLAY; 60% low plasticity clay; 20% silt; 20% fine to
coarse gravel; soft; cohesive; reddish brown (5YR 4/4); dry to
moist; increase moisture with depth.
0.369
0.304
0.475
0.513
0.397
0.503
0.315
0.336
0.225
0.306
0.284
0.401
0.320
0.260
0.233
0.356
0.514
0.463
0.453
0.365
0.271
0.347
0.486
0.519
0.353
0.542
0.571
0.481
0.238
0.168
0.404
0.131
0.123
Hydrated
bentonite pellet
seal (250 to 312
ft bgs).
#10/20 sand
filter pack (312
to 328 ft bgs).
4.5
5.4
1.0
3.2
2.7
4.3
6.8
5.1
8.9
5.7
5.7
6.5
1.7
2.2
4.4
6.1
4.1
3.0
5.3
4.5
6.8
3.9
9.6
17.4
3.3
22.9
19.1
26.3
18.0
4.3
10.5
7.0
16.8
ML
ML
ML
ML
CL
CL
CL
CH
CL
CL
CL
SB050820-
274
MW26-
SB050820-
285
MW26-
SB051020-
299
MW26-
SB051020-
308
MW26-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
280
285
290
295
300
305
310
315
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 8 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
317.0
320.0
323.0
330.0
335.0
340.0
343.0
347.5
350.0
352.0
Sandy GRAVEL; 50% fine to coarse well graded gravel; 30%
fine sand; 20% clay; loose; reddish brown (5YR 4/4); wet.
Silty GRAVEL; 50% fine to coarse gravel; 30% silt; 20% fine
sand; compact; non-cohesive
Sandy GRAVEL; 50% fine to coarse well graded gravel; 40%
fine sand; 10% clay; loose; reddish brown (5YR 4/4); wet.
Gravelly CLAY; 50% low plasticity clay; 30% fine to coarse
gravel; 20% coarse sand; soft; cohesive; reddish brown (5YR
4/4); moist.
-moist to wet
Silty CLAY; 50% low plasticity clay; 30% silt; 20% coarse
gravel; stiff; non-cohesive; reddish brown (5YR 4/4); dry.
Sandy GRAVEL; 50% fine to coarse well graded gravel; 30%
coarse sand; 20% clay; non-cohesive; loose; reddish brown
(5YR 5/4); dry.
Sandy GRAVEL; 40% fine to coarse well graded gravel; 30%
coarse sand; 30% clay; non-cohesive; loose; reddish brown
(5YR 5/4); wet.
Sandy GRAVEL; 40% fine to coarse well graded gravel; 30%
coarse sand; 30% clay; non-cohesive; loose; reddish brown
(5YR 5/4); moist.
Gravelly SAND; 70% coarse sand; 30% fine well graded
gravel; loose; moist; very dark gray (5YR 3/1); moist.
Gravelly CLAY; 60% medium plasticity clay; 30% fine to
coarse gravel; 10% coarse sand; soft; cohesive; reddish
brown (5YR 5/4); moist.
Gravelly CLAY; 60% medium plasticity clay; 30% fine to
coarse gravel; 10% coarse sand; soft; cohesive; reddish
brown (5YR 5/4); wet.
0.201
0.133
0.044
0.032
0.245
0.223
0.224
0.184
0.220
0.089
0.106
0.198
0.249
0.145
0.179
0.316
0.199
0.201
0.089
0.084
3.40
0.301
3.15
0.565
0.308
0.309
0.197
0.188
1-inch SCH 80
0.020-slot
screen ZIST
nested well (315
to 325 ft bgs).
Hydrated
bentonite pellet
seal (328 to 342
ft bgs).
#10/20 sand
filter pack (342
to 360 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (348
to 358 ft bgs).
2.8
2.9
6.8
3.7
3.2
3.8
5.5
13.1
11.0
18.5
11.0
19.7
14.9
18.8
29.2
36.5
33.4
33.7
17,8
32.0
31.6
82.2
129
149.4
10.6
2.1
0.6
1.3
GW
GM
GW
CL
CL
GW
GW
GW
SW
CH
SB051020-
314
MW26-
GW051020-
320
MW26-
SB051120-
329
MW26-
SB051120-
334
MW26-
SB051120-
348
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
320
325
330
335
340
345
350
355
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 9 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
358.0
360.0
Gravelly CLAY; 60% low plasticity clay; 30% fine to coarse
gravel; 10% coarse sand; soft; cohesive; reddish brown (5YR
5/4); dry to moist.
End of boring 360 ft bgs.
0.193
0.127
0.248
0.257
20.5
15.3
10.0
9.6
CH
CL
MW26-
SB051220-
355
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/22/2020-5/11/2020
360
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-26
PAGE 10 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
11.0
15.0
20.0
21.5
28.0
30.0
Hydrovac excavation, no recovery
Clayey SAND; 50% well graded fine to coarse sand; 30% low
plasticity clay; 20% fine to coarse subrounded to subangular
gravel; reddish brown (5YR 4/4); dry.
Clayey SAND; 50% well graded fine to coarse sand; 20% low
plasticity clay; 30% fine to coarse subrounded to subangular
gravel; reddish brown (5YR 4/4); moist.
CLAY; 70% low plasticity clay; 15% fine subrounded to
subangular gravel; 5% fine sand; reddish brown (5YR 4/4);
moist.
CLAY; 70% high plasticity clay; 20% fine to coarse
subrounded to subangular gravel; 10% coarse sand; reddish
brown (5YR 4/4); moist.
SAND with Gravel; 85% poorly graded medium sand; 15%
fine to coarse subrounded to subangular gravel; reddish
brown (5YR 4/4); moist.
Gravelly CLAY; 50% high plasticity clay; 40% fine to coarse
subrounded to subangular gravel; 10% fine to coarse sand;
brown (7.5 YR 4/3); dry.
0.259
0.042
0.060
Vault with
cement surface
seal
Bentonite Grout
(3.5 to 31 ft
bgs).
Hydrated
bentonite seal
(11 to 25 ft bgs).
6" soil vapor
point at 28 ft
bgs; #10/20
sand filter pack
2.4
2.1
2.5
6.3
4.2
3.4
2,4
5.6
9.2
4.9
7.2
10.6
5.1
4.1
13.2
5.5
3.0
1.9
0.8
SC
SC
CL
CH
SP
CH
MW27-
SB032220-
13
MW27-
SB032220-
16
MW27-
SB032220-
30
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Kimberly Myers
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
4-inch SCH 40 0.010-Slot
#10/20 sand
REMARKS
4712.61
See Table 5
A perched groundwater zone was encountered at approx. 150 ft bgs and groundwater was encountered at approx. 190 ft bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
4-inch SCH 40 PVC
3/20/2020 - 3/22/20
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 1 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
38.5
48.0
51.0
53.5
56.0
67.0
70.0
72.0
73.5
Clayey GRAVEL; 50% coarse subrounded to subangular
gravel; 30% fine to coarse sand; 20% low plasticity clay;
brown (7.5 YR 4/3); dry.
Clayey GRAVEL; 40% coarse subrounded to subangular
gravel; 40% low plasticity clay; 20% fine to coarse sand;
brown (7.5 YR 4/3); dry.
CLAY; 90% high plasticity clay; 10% fine gravel; brown (7.5
YR 5/3); moist.
CLAY; 70% low plasticity clay; 25% fine to coarse subrounded
to subangular gravel; 5% coarse sand; brown (7.5YR 5/3);
moist.
Well graded SAND; 80% fine to coarse sand; 15% fine to
coarse subrounded to subangular gravel; 5% low plasticity
clay; brown (7.5YR 5/3); moist.
- 6" clay layer
CLAY; 75% low plasticity clay; 20% fine to coarse subrounded
to subangular gravel; 5% fine to coarse sand; brown (7.5YR
5/3); moist.
SAND and GRAVEL; 50% well graded fine sand; 45% fine to
coarse subrounded to subangular gravel; 5% low plasticity
clay; brown (7.5YR 5/3); moist.
Gravelly CLAY; 50% low to medium plasticity clay; 40% fine
to coarse subrounded to subangular gravel; 10% coarse sand;
brown (7.5YR 5/3); moist.
Gravelly CLAY; 60% high plasticity clay; 30% fine to coarse
0.020
0.073
0.061
0.081
0.00
0.00
0.00
0.00
0.158
1.59
0.658
0.119
Hydrated
bentonite seal
(31 to 44 ft bgs).
6" soil vapor
point at 48 ft
bgs; #10/20
sand filter pack
Hydrated
bentonite seal
(51 to 73 ft bgs).
1.7
2.3
3.0
3.9
9.0
8.1
5.6
5.2
11.1
22.1
44.0
1.3
5.2
3.1
3.1
11.4
6.5
0.5
2.5
3.7
0.3
1.2
0.7
1.4
0.7
2.8
4.4
7.0
1.5
3.0
9.4
20.9
GC
GC
CH
CL
SW
CL
SW
CL
MW27-
SB032220-
40
MW27-
SB032220-
50
MW27-
SB032220-
54.5
MW27-
SB032220-
70
MW27-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/20/2020 - 3/22/20
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 2 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
77.5
81.0
82.0
90.0
98.0
100.0
105.0
110.0
113.0
subrounded to subangular gravel; 10% coarse sand; reddish
brown (5YR 4/4); moist.
SAND and GRAVEL; 40% fine sand; 40% fine to coarse
subrounded to subangular gravel; 20% low plasticity clay;
brown (7.5YR 5/3); moist.
CLAY; 80% medium plasticity clay; 15% fine to coarse
subrounded to subangular gravel; 5% fine sand; brown
(reddish brown (5YR 4/4); moist.
SAND and GRAVEL; 40% well graded fine sand; 40% fine to
coarse subrounded to subangular gravel; 20% low plasticity
clay; brown (7.5YR 5/3); moist.
CLAY; 85% high plasticity clay; 10% fine sand; 5% fine
gravel; brown (7.5YR 5/3); moist.
Gravelly CLAY; 50% high plasticity clay; 50% fine to coarse
well graded gravel; brown (7.5YR 5/3); wet.
Gravelly CLAY; 40% low plasticity clay; 40% fine to coarse
subrounded to subangular well graded gravel; 20% fine to
medium sand; reddish brown (5YR 4/4); moist
SAND and GRAVEL; 50% well graded fine to coarse sand;
40% fine to coarse subrounded to subangular gravel; 10% low
plasticity clay; strong brown (7.5YR 4/6); moist.
Gravelly CLAY; 40% low plasticity clay; 40% fine to coarse
subrounded to subangular gravel; 20% fine to medium sand;
brown (7.5YR 4/4); moist.
SAND and GRAVEL; 50% well graded fine to coarse sand;
40% fine to coarse subrounded to subangular gravel; 10% low
plasticity clay; strong brown (7.5YR 4/6); moist.
0.112
0.083
0.330
0.130
1.04
0.325
0.360
0.179
0.620
0.960
1.08
1.12
0.992
0.572
0.224
0.218
0.122
0.179
0.255
0.169
0.121
0.186
0.137
0.061
5.96
0.307
0.341
0.204
0.201
6" soil vapor
point at 75 ft
bgs; #10/20
sand filter pack
Hydrated
bentonite seal
(79 to 109 ft
bgs).
6" soil vapor
point at 113 ft
bgs; #10/20
sand filter pack
15.9
4.9
1.3
0.9
1.0
3.1
7.7
6.7
8.3
10.7
11.1
3.5
0.3
2.9
2.9
6.5
6.2
1.5
55
25.3
32.7
21.9
16.7
16.6
10.2
3.4
4.4
41.3
66.9
62.9
103.1
33.2
CH
SW
CL
SW
CH
CH
CL
SW
CL
SB032220-
75
MW27-
SB032220-
88
MW27-
SB032220-
96
MW27-
SB032320-
102
MW27-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/20/2020 - 3/22/20
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 3 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
120.0
149.0
Gravelly CLAY; 40% low plasticity clay; 40% fine to coarse
subrounded to subangular gravel; 20% fine to medium sand;
reddish brown (5YR 4/4); moist.
- No Recovery 139-140
Gravelly CLAY; 70% medium to high plasticity clay; 25% fine
to coarse well graded gravel; 5% medium sand; reddish brown
(5YR 4/4); moist.
0.149
0.071
0.067
7.04
0.290
3.90
0.092
0.156
0.287
0.124
0.239
4.53
0.641
0.512
1.28
0.075
0.109
0.061
0.480
0.178
2.70
1.75
1.10
1.19
1.40
0.215
0.230
0.215
3.51
0.092
Hydrated
bentonite seal
(116 to 151 ft
bgs).
6" soil vapor
point at 155 ft
bgs; #10/20
sand filter pack
23.3
61.7
46.4
36.0
98.4
54.0
57.6
56.6
46.9
18.3
36.6
17.9
8.8
12.4
11.0
4.3
7.9
5.0
9.4
8.8
4.3
5.6
8.3
3.4
7.9
3.9
3.0
15.7
8.4
21.8
35.1
33.5
SW
CL
CH
SB032320-
114
MW27-
SB032320-
122
MW27-
SB032320-
130
MW27-
SB032320-
140
MW27-
SB032320-
150
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/20/2020 - 3/22/20
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 4 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
156.0
157.0
159.0
160.0
163.5
168.0
174.0
180.0
184.0
189.5
192.0
GRAVEL and SAND; 45% well graded fine to coarse sand;
45% fine to coarse subrounded to subangular gravel; 10% low
plasticity clay; reddish brown (5YR 4/4); moist.
Gravelly CLAY; 40% low plasticity clay; 40% fine to coarse
subrounded to subangular well graded gravel; 20% fine to
medium sand; reddish brown (5YR 4/4); moist.
GRAVEL and SAND; 45% well graded fine to coarse sand;
45% fine to coarse subrounded to subangular gravel; 10% low
plasticity clay; reddish brown (5YR 4/4); moist.
Gravelly CLAY; 40% low plasticity clay; 40% fine to coarse
subrounded to subangular well graded gravel; 20% fine to
medium sand; reddish brown (5YR 4/4); moist.
GRAVEL and SAND; 40% well graded fine to coarse sand;
40% fine to coarse subrounded to subangular gravel; 20% low
plasticity clay; reddish brown (5YR 4/4); wet.
Gravelly CLAY; 50% low to medium plasticity clay; 40% fine
to coarse subrounded to subangular well graded gravel; 10%
medium sand; reddish brown (5YR 4/4); moist.
GRAVEL and SAND; 45% well graded fine to coarse sand;
45% fine to coarse subrounded to subangular gravel; 10% low
plasticity clay; reddish brown (5YR 4/4); moist.
Clayey GRAVEL; 50% fine to coarse subrounded to
subangular well graded gravel; 30% low plasticity clay; 20%
medium to coarse sand; reddish brown (5YR 4/4); moist.
Gravelly CLAY; 60% high plasticity clay; 35% fine to coarse
well graded gravel; 5% medium sand; reddish brown (5YR
4/4); moist.
Clayey GRAVEL; 40% fine to coarse subrounded to
subangular well graded gravel; 30% low plasticity clay; 30%
medium to coarse sand; reddish brown (5YR 4/4); moist.
Gravelly CLAY; 60% high plasticity clay; 35% fine to coarse
well graded gravel; 5% medium sand; reddish brown (5YR
4/4); wet.
0.237
0.194
0.131
0.776
0.529
3.39
0.244
0.670
0.705
1.23
1.66
1.06
0.242
0.204
0.199
0.179
0.115
0.081
4.05
0.061
0.150
0.196
0.154
0.424
1.37
0.231
0.654
Hydrated
bentonite pellet
seal (157 to 197
ft bgs).
42.4
64.5
17.1
1.1
18.1
35.0
11.4
30.7
11.2
8.6
7.3
9.2
30.4
29.1
27.3
20.4
12.6
16.5
51.4
60.6
22.1
43.8
80.8
53.8
18.5
28.6
19.7
32.5
17.6
GW
CL
GW
CL
GW
CL
GW
GC
CH
GC
MW27-
SB032320-
158
MW27-
SB032320-
166
MW27-
GW032320-
168
MW27-
SB032320-
175
MW27-
SB032420-
185
MW27-
SB032420-
192.5
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/20/2020 - 3/22/20
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 5 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
200.0
210.0
215.0
220.0
-Low recovery, sample slid out of core barrel; wet.
Well graded GRAVEL; 80% fine to coarse subrounded to
subangular gravel; 10% fine sand; 10% low plasticity clay;
reddish brown (5YR 4/4); wet.
Gravelly CLAY; 40% low plasticity clay; 30% medium to
coarse sand; 30% fine to coarse subrounded to subangular
well graded gravel; reddish brown (5YR 4/4); wet.
End of boring at 220 ft bgs.
0.128
0.170
1.99
4.29
0.436
0.868
0.178
#10/20 sand
filter pack (197
to 220 ft bgs).
4-inch SCH 40
0.010-slot
screen well (200
to 220 ft bgs).
7.8
17.9
12.0
19.7
2.4
1.0
0.8
0.3
4.2
1.2
CH
GW
CL
MW27-
GW032420-
210
MW27-
SB032420-
218
MW27-
GW032420-
220
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/20/2020 - 3/22/20
200
205
210
215
220
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-27
PAGE 6 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
11.5
13.0
17.0
21.0
24.5
28.0
No recovery. Hydrovac clearing from 0-10' bgs.
Silty GRAVEL, 60% well graded fine to coarse gravel; 30%
Silt; 5% fine sand; non-cohesive, light brownish gray (10YR
6/2), dry.
Gravelly SILT; 55% silt; 35% fine to coarse gravel; 10% fine
sand; non-cohesive; reddish brown (5YR 5/3); dry.
Silty GRAVEL; 50% well graded fine to coarse gravel; 25%
Silt; 25% fine sand; non-cohesive, reddish brown (5YR 5/3),
dry.
Well Graded GRAVEL; 50% fine to coarse gravel; 40% fine
sand; 10% silt; rounded 6" cobble, light brown (7.5YR 6/3),
dry.
Silty GRAVEL; 50% well graded fine to coarse gravel; 30%
Silt; 20% fine sand; weakly cemented; subrounded clasts;
reddish brown (5YR 5/3), dry.
Well graded SAND; 55% fine to medium sand; 40% fine to
coarse gravel; 5% silt; loose, light brown (7.5YR 6/3), moist.
Clayey GRAVEL; 70% fine to coarse gravel; 30% silty clay;
low plasticity; light brown (7.5YR 6/3); moist
Vault with
cement surface
seal
Bentonite Grout
(3.5 to 31 ft
bgs).
Hydrated
bentonite pellet
seal (11 to 21 ft
bgs).
6" soil vapor
point at 24 ft
bgs; #10/20
sand filter pack
3.4
4.2
3.1
6.8
14.1
20.1
6.6
10.6
12.8
5.7
48.2
41.6
33.1
2.0
2.2
4.6
5.0
13.2
8.5
13.7
GM
ML
GM
GW
GM
SW
GC
MW28-
SB031220-
14
MW28-
SB031220-
16
MW28-
SB031220-
22
MW28-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
4-inch SCH 40 0.010-Slot
#10/20 sand
REMARKS
4712.80
See Table 5
A perched groundwater zone was encountered at approx. 150 ft bgs and groundwater was encountered at approx. 185 ft bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
4-inch SCH 40 PVC
3/11/2020 - 3/18/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 1 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
36.0
38.0
40.0
41.0
43.0
49.0
56.0
58.5
62.0
65.5
69.0
71.0
Silty GRAVEL; 60% fine to coarse well graded gravel; 30%
silt; 10% fine sand; medium dense; reddish brown (5YR 5/4);
moist
Well graded SAND; 60% fine to coarse sand; 35% fine to
coarse gravel; 5% silt; loose, light gray (7.5YR 7/1); moist.
Silty GRAVEL; 70% well graded fine to coarse gravel; 30%
Silt; 2non-cohesive, reddish brown (5YR 5/3); moist.
Gravelly SILT; 70% silt; 30% fine to coarse gravel; slightly
cohesive; stiff; reddish brown (5YR 5/3); moist.
Well graded GRAVEL; 65% fine to coarse gravel; 30% fine to
medium sand; 5% silt; reddish brown (5YR 5/4); moist.
-10-12" cobble
Well graded GRAVEL 75% fine to coarse gravel; 20%
medium to coarse sand; 5% silt; loose; light brownish gray
(10YR 6/2); dry.
Silty GRAVEL; 60% fine to coarse subangular gravel; 35%
silt; 5% fine sand; socketed matrix; slightly cohesive; light
brownish gray (10YR 6/2); moist.
Silty GRAVEL; 45% fine to coarse subangular gravel; 35%
silt; 20% fine sand; slightly cohesive; reddish brown (5YR
5/4); FeO staining; moist.
Sandy GRAVEL; 45% fine to coarse well graded gravel; 30%
fine sand; 15% silt; loose; light brown (7.5YR 6/3); moist.
Poorly graded SAND; 60% fine sand; 40% fine to coarse
gravel; loose to weakly cemented in places; light brown
(7.5YR 6/3); moist.
Clayey SILT; 60% clayey silt; 40% fine to coarse gravel; trace
green staining; cohesive; brown (7.5YR 4/3); moist.
Well Graded GRAVEL; 50% fine to coarse gravel; 45% fine
sand; 5% silt; subrounded clasts; loose; light brownish gray
(10YR 6/2); moist.
Hydrated
bentonite pellet
seal (27 to 45 ft
bgs).
6" soil vapor
point at 48 ft
bgs; #10/20
sand filter pack
8.0
1.2
14.2
11.8
16.8
14.8
27.9
3.5
5.8
7.4
3.8
3.5
4.1
1.8
3.3
2.1
2.3
5.6
7.4
9.6
7.4
3.1
2.1
0.8
0.9
GM
SW
GM
ML
GW
GW
GM
GM
GW
SP
ML
GW
SB031220-
35
MW28-
SB031320-
49
MW28-
SB031320-
59
MW28-
SB031320-
67
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/11/2020 - 3/18/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 2 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
77.0
78.0
80.0
85.5
88.5
92.0
101.0
105.0
107.0
111.0
115.0
Clayey SILT; 90% clayey silt; 10% fine to coarse gravel; soft;
cohesive; brown (7.5YR 4/3); moist.
SILT; 50% Silt; 40% fine to coarse sand; 10% fine to coarse
gravel; cohesive; stiff; brown (7.5YR 4/3); moist.
Silty GRAVEL; 60% fine to coarse, subrounded to subangular
gravel; 20% silt; 20% fine sand; medium dense; light brown
(7.5YR 6/3); dry.
Silty GRAVEL; 60% fine to coarse, subrounded to subangular
gravel; 30% silt; 10% fine sand; slightly cohesive; light gray
(7.5YR 7/1), some red straining; moist.
Well Graded GRAVEL; 60% fine to coarse gravel; 40% fine to
coarse sand; 10% silt; loose; light brownish gray (10YR 6/2);
moist.
Silty GRAVEL; 50% fine to coarse, subrounded to angular
gravel; 30% silt; 20% fine sand; slightly cohesive; stiff; brown
(7.5YR 4/3); moist.
Gravelly SAND with Silt; 55% fine to coarse sand; 30%
coarse gravel; 15% silt; light brown (7.5YR 6/3); moist.
Sandy GRAVEL; 60% well graded fines to coarse gravel; 40%
fine to coarse sand; moderately cemented; very dense; light
gray (7.5YR 7/1); dry.
Gravelly SAND with Silt; 55% fine sand; 30% fine to coarse
gravel; 15% silt; loose; light brownish gray (10YR 6/2); moist.
SILT; 60% silt; 40% fine to coarse gravel; stiff; cohesive;
brown (7.5YR 4/3); moist.
0.019
0.015
0.023
0.000
0.017
0.058
0.073
0.041
0.025
0.054
0.035
0.011
0.027
0.031
0.018
Hydrated
bentonite pellet
seal (51 to 114.6
ft bgs).
1.2
1.2
2.3
1.1
2.0
3.9
5.1
1.6
3.1
11.3
2.8
3.9
6.1
6.1
8.1
10.0
1.6
4.0
10.4
10.7
5.8
10.1
9.2
19.4
39.0
1.9
2.9
1.8
3.2
81.5
42.5
46.2
113.2
ML
ML
GM
GM
GW
GM
SW
SM
GW
SM
ML
MW28-
SB031320-
86
MW28-
SB031320-
97
MW28-
SB031520-
107
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/11/2020 - 3/18/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 3 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
120.0
128.0
133.0
140.0
142.0
150.0
Well graded GRAVEL; 70% fine to coarse, subrounded to
subangular gravel; 30% fine to coarse sand; light gray (7.5YR
7/1); moist.
SILT; 45% silt; 35% gine to coarse gravel; 20% fine sand;
slighty cohesive; weakly cemented in places; reddish brown
(5YR 5/4); moist.
Silty GRAVEL; 50% fine to coarse gravel; 40% silt; 10% fine
sand; dense; weakly cemented; grayish brown (10YR 5/2);
moist.
SILT; 70% silt; 20% gravel; 10% fine sand; stiff; cohesive;
reddish brown (5YR 4/4); moist.
Silty SAND; 45% fine sand; 35% silt; 20% fine gravel; reddish
brown (5YR 4/4); moist.
SILT; 60% silt; 30% fine to coarse subrounded to subangular
gravel; 10% fine sand; slightly cohesive; weakly cemented in
places; reddish brown (5YR 5/4); moist.
SILT; 50% silt; 35% fine sand; 15% fine gravel; cohesive;
stiff; reddish brown (5YR 5/4); moist.
0.024
0.028
0.054
0.195
0.043
0.078
0.278
0.185
0.167
0.116
1.80
1.20
0.111
0.250
0.750
0.496
7.76
0.610
1.90
1.22
6.33
2.54
0.101
0.089
6" soil vapor
point at 118 ft
bgs; #10/20
sand filter pack
Hydrated
bentonite pellet
seal (120 to
186.5 ft bgs).
116.2
130.3
117
175
55.1
33.8
31.8
12.2
10.1
10.25
7.8
10.7
3.2
3.88
5.30
5.60
17.8
2.36
6.33
9.26
6.91
23.1
15.1
35.2
10.8
7.4
20.6
GW
ML
GM
ML
SM
ML
ML
MW28-
SB031520-
117
MW28-
SB031620-
121
MW28-
SB031620-
139
MW28-
SB031720-
149
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/11/2020 - 3/18/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 4 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
156.0
159.0
160.0
161.0
166.0
171.0
175.0
178.0
184.0
186.5
190.0
195.0
Sandy GRAVEL; 55% fine to coarse subrounded to
subangular well graded gravel; 35% fine sand; 10% silt;
reddish brown (5YR 5/4) with gray mottling; moist.
Silty GRAVEL; 55% fine to coarse gravel; 40% silt; 5% fine
sand; cohesive; reddish brown (5YR 5/4); moist.
Gravelly SILT; 75% silt; 25% fine to coarse gravel; soft;
reddish brown (5YR 5/4); wet.
Silty GRAVEL; 70% fine to coars rounded gravel; 30% silt;
slightly cohesive; medium dense; reddish brown (5YR 5/4);
moist.
Sandy SILT; 55% silt; 25% fine sand; 20% fine gravel; weakly
cemented in places; reddish brown (5YR 5/4); moist.
Gravelly SILT; 55% silt; 35% fine gravel; 10% fine sand; stiff;
reddish brown (5YR 5/4); moist.
Silty SAND; 60% fine to coarse sand; 30% silt; 10% fine
gravel; loose; reddish brown (5YR 4/4); moist.
Silty GRAVEL; 55% fine to coarse gravel; 35% silt; 10% fine
sand; loose; reddish brown (5YR 5/4); moist.
Well Graded SAND; 60% fine to coarse sand; 30% fine
gravel; 10% silt; loose; reddish brown (5YR 5/4); moist to wet.
Sandy SILT; 60% silt; 30% fine sand; 10% fine gravel;
cohesive; medium plasticity; stiff; reddish brown (5YR 5/3);
moist.
Sandy SILT; 50% silt; 40% fine sand; 10% fine gravel;
cohesive; medium plasticity; soft; reddish brown (5YR 5/3);
moist.
0.100
0.075
0.453
0.145
0.107
0.082
0.000
0.000
0.731
0.026
0.058
0.003
0.010
0.071
0.190
0.000
0.010
0.018
Hydrated
bentonite pellet
seal (120 to
186.5 ft bgs).
23.2
6.37
1.45
3.01
2.51
3.10
7.95
4.98
2.42
2.90
3.4
11.0
7.2
10.8
9.3
3.6
7.5
1.1
2.8
1.8
3.2
14
8.97
8.4
0.9
0.7
1.3
GW
GM
ML
GM
ML
ML
SM
GM
SW
ML
ML
MW28-
SB031720-
156
MW28-
SB031720-
165
MW28-
SB031720-
171
MW28-
SB031720-
185
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/11/2020 - 3/18/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 5 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
198.0
203.0
205.5
210.5
Silty SAND; 55% fine sand; 40% silt; 5% clay; medium dense;
cohesive; reddish brown (5YR 5/4); wet.
Sandy GRAVEL; 50% well graded fine to coarse gravel; 35%
fine sand; 15% silt; loose; reddish brown (5YR 5/4); wet.
Silty SAND; 50% fine sand; 45% silt; 5% fine gravel;
cohesive; reddish brown (5YR 5/4); wet.
Gravelly SAND; 55% medium to coarse sand; 35% fine to
coarse gravel; 10% silt; loose; reddish brown (5YR 5/4); wet.
End of boring at 210.5 ft bgs.
0.024
0.000
0.030
#10/20 sand
filter pack (186.5
to 210 ft bgs).
4-inch SCH 40
0.010-slot
screen well (190
to 210 ft bgs).
1.0
2.3
2.9
0.8
1.1
3.8
2.9
8.1
4.6
10.2
SM
GW
SM
SW
MW28-
SB031720-
199
MW28-
SB031720-
206
MW28-
GW031820-
211
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
3/11/2020 - 3/18/2020
200
205
210
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-28
PAGE 6 OF 6
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
8.5
10.0
12.5
16.0
18.0
19.0
20.0
21.2
21.5
22.5
24.0
Hydrovac from 0 to 8.5 ft bgs.
No recovery.
Gravelly SAND with Silt: brown (7.5 YR 5/4); 60% sand, well
graded, fine to coarse, subangular to subrounded; 25%
gravel, poorly graded, fine to medium, subangular to
subrounded; 15% silt, non-plastic, moist.
Sandy SILT with Gravel: reddish brown (5 YR 5/4); 50% silt,
non-plastic; 35% sand, poorly graded, fine; 15% gravel, well
graded, fine to coarse; moist.
CLAY with Gravel: reddish brown (2.5 YR 4/4); 80% clay, low
plasticity; 15% gravel, well graded, fine to coarse, angular to
subrounded, up to 6 inches; 5% sand, poorly graded, very fine
to fine, moist.
Sandy SILT with Gravel: reddish rown (2.5 YR 4/4); 65% silt,
well graded; 20% sand; 15% gravel, fine to medium, angular.
Gravelly SILT and CLAY: reddish brown (2.5 YR 4/4); gravel
up to 4 inches, angular to subrounded.
Sandy Silt: 60% silt, non-plastic; 40% sand, well graded, fine
to coarse.
Color is duskly red (2.5 YR 3/2); black discoloration; no odor
(4-inch lens).
Clayey GRAVEL: 3 inches of clayey gravel.
Sandy SILT with Gravel: gravel, is well graded, subangular to
subrounded, up to 3 inches in diameter.
Silty GRAVEL with SAND: 45% gravel, angular to
subrounded, up to 5 inches; 40% sand, well graded; 15% silt,
non-plastic.
0.211
0.185
0.217
0.249
0.294
0.346
0.298
0.233
0.102
0.097
1.09
0.61
0.787
0.286
1.1
Vault with
cement surface
seal
Bentonite Grout
(3 to 11 ft bgs).
Hydrated
bentonite pellets
(11 to 117 ft
bgs).
9.5
11.4
15.3
10.5
21.6
13.8
24.1
14
16.5
9.3
11.4
45.6
63.9
75.3
SW
ML
CL
ML
ML
ML
GC
ML
GM
MW29-
SB052720-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Kimberly Myers
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4679.35
See Table 5
Groundwater was encountered at approximately 115 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
5/27/2020 - 6/4/2020
5
10
15
20
25
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 1 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
26.0
27.5
28.0
32.0
34.0
42.5
46.0
49.0
50.0
53.0
Silty SAND: 60% sand, 40% silt.
4-inch layer of coarse gravel, angular to subrounded.
Gravelly CLAY: 60% clay, 40% gravel.
5 inch layer of coarse gravel, angular to subrounded.
Gravelly SILT with Sand: brown (7.5 YR 4/4); 55% silt,
non-plastic; 25% gravel, well graded, subangular to
subrounded, up to 4 inches; 20% sand, well graded, fine to
coarse.
White and powdery.
Gravelly CLAY: reddish brown (2.5 YR 4/4); 75% clay; 20%
gravel, well graded, fine to medium, up to 2 inches; 5% sand,
well graded.
Sandy SILT with Gravel: reddish brown (5 YR 5/4); 50% silt;
30% sand, well graded; 20% gravel, well graded, subangular
to subrounded, up to 6 inches.
Color changes to reddish brown (2.5 YR 4/4).
Same as above except silt increases to 65%.
CLAY with Sand: 95%clay, low plasticity; 5%sand; trace
gravel; moist.
Silty CLAY: reddish brown (2.5 YR 4/4); 80% clay; 15% silt;
5% sand; moist.
Gravelly SILT with Sand: reddish brown (5 YR 4/4); 50% silt,
non-plastic; 20% sand, well graded, fine to coarse; 30%
gravel, well graded, angular to subrounded.
CLAY with Sand: brown (7.5 YR 4/4); 80% clay, low plasticity;
10% sand, poorly graded, very fine to fine; 5% gravel, fine to
coarse, subangular to subrounded, up to 2 inches; 5% silt.
Sandy CLAY: higher sand/gravel content, well graded, 50% of
0.337
0.296
0.288
0.321
0.171
0.248
0.418
1.04
1.18
0.199
0.169
0.504
0.472
0.699
0.159
0.32
0.311
0.668
0.579
0.783
0.813
0.855
0.691
0.82
0.654
0.106
0.556
0.439
0.552
Hydrated
bentonite pellets
(11 to 117 ft
bgs).
39.6
30.4
68.8
62.3
30.5
33.4
62.9
80.4
68.2
41
75.9
66.3
61.9
23.7
34.3
16.7
54.2
92.5
9.3
14.5
14.8
11.5
12.6
1.9
6.9
9.6
7.6
11.7
10.3
SM
CL
GP
ML
CL
ML
CL
CL
ML
CL
24
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
30
35
40
45
50
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 2 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
54.0
55.5
57.5
58.0
60.0
61.0
65.0
66.0
67.0
67.5
69.5
69.8
71.5
73.0
77.5
79.0
80.0
total.
CLAY with Sand: brown (7.5 YR 4/4); 80% clay, low plasticity;
10% sand, poorly graded, very fine to fine; 5% gravel, fine to
coarse, subangular to subrounded, up to 2 inches; 5% silt.
Silty SAND with Gravel: brown (7.5 YR 4/4); 50% sand, well
graded, fine to coarse; 35% silt, non-plastic; 15% gravel,
poorly graded, fine, subangular to subrounded; moist.
Gravel becomes well graded, up to 3 inches in diameter.
Silty CLAY: 6 inches of silty clay.
CLAY: 70% clay, low to no plasticity; 25% silt; 5% sand very
fine.
CLAY with Gravel: brown (7.5 YR 5/4); 75% clay, low
plasticity; 15% gravel, subangular to subrounded; 5% sand;
5% silt; moist.
CLAY: brown (7.5 5/4); 90% clay, low plasticity; 5% sand; 5%
silt; moist.
Clayey SAND with Gravel: yellowish red (5 YR 4/6); 40%
sand, well graded; 30% clay; 30% gravel, fine to medium,
angular to subrounded.
6-inch layer of CLAY.
Clayey SAND with Gravel: yellowish red (5 YR 4/6); 40%
sand, well graded; 30% clay; 30% gravel, fine to medium,
angular to subrounded.
GRAVEL: 70% coarse gravel lens.
Gravelly SILT with Sand: yellowish red (5 YR 4/6); 40% silt,
non-plastic; 35% gravel, well graded, subangular to
subrounded; 25% sand, well graded.
SILT: pinkish gray (5 YR 7/2); 3 inches of pinkish gray silt;
calcite powder.
Gravelly SILT with Sand: brown (7.5 YR 4/4); 40% silt,
non-plastic; 35% gravel, well graded, subangular to
subrounded; 25% sand, well graded.
SILT with Gravel: strong brown (7.5 YR 4/6); 75% silt,
non-plastic; 10% sand; moist.
CLAY: reddish brown (2.5 YR 4/4); 90% clay, low plasticity;
5% sand, poorly graded, fine; 5% silt; moist.
SILT with Gravel: strong brown (7.5 YR 4/6); 75% silt,
non-plastic; 15% gravel, poorly graded, fine, subangular to
subrounded; 10% sand; moist.
SILT: 80% silt, non-plastic; 10% gravel, poorly graded, fine;
5% sand, fine, poorly graded; 5% clay, low plasticity.
CLAY: reddish brown (2.5 YR 4/4); 95% clay, medium to high
plasticity; 5% sand, fine to coarse; trace gravel; moist.
0.283
0.463
0.239
0.278
0.383
0.464
0.328
0.611
0.333
0.925
1.02
0.772
0.369
0.178
0.164
0.152
0.123
0.279
0.189
0.308
0.488
0.457
0.406
0.523
0.243
0.349
0.378
0.601
Hydrated
bentonite pellets
(11 to 117 ft
bgs).
14.5
17.3
24.8
11
9.8
10.6
11.6
13.6
22.7
12.1
16.9
13.5
26.9
27.9
16.5
17.7
7.8
10.3
21.7
13.3
12.8
17.4
16.4
10
5.3
3.9
3.4
13.9
CL
CL
SM
CL
CL
CL
CL
SC
SC
GP
ML
ML
ML
ML
CL
ML
ML
CH
MW29-
SB052820-
56
MW29-
SB052820-
67
MW29-
SB052820-
72
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
55
60
65
70
75
80
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 3 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
83.5
84.0
87.0
87.5
89.0
90.0
95.0
95.5
99.0
100.0
101.0
104.0
110.0
Clayey SAND with Gravel: moist.
Sandy CLAY: 85% clay, medium to high plasticity; 15% sand,
very fine; moist.
Sandy CLAY: 70% clay; 30% sand, well graded; moist.
Sandy CLAY: 85% clay, medium to high plasticity; 15% sand,
very fine; trace gravel, up to 1.5 inches, subangular to
subrounded; moist.
Gravelly SILT with Sand: 60 to 65% silt, low to non-plastic; 15
to 20% sand; 20% gravel, up to 2 inches; moist.
CLAY with Sand: reddish brown (2.5 YR 4/4); 85 to 90% clay;
10 to 15% sand, mostly very fine to fine, trace coarse; trace
gravel; moist.
Color changes to reddish brown (2.5 YR 5/3).
6 inch boulder.
Silty SAND with Gravel: reddish brown (5 YR 5/4); 40% sand,
well graded; 30% silt, non-plastic; 30% gravel, well graded,
fine to coarse, up to 3 inches; dry to moist.
White to pinkish gray (5 YR 7/2) layer of powdery calcite silt.
No recovery from 100 to101 ft bgs.
SAND with Silt and Gravel.
Silty Clayey SAND and GRAVEL: reddish brown (2.5 YR 4/4);
70% sand and gravel; 30% silt with some clay. Gravel is up to
5 inches in diameter.
No recovery from 110 to 115 ft bgs due to broken casing.
0.52
0.651
0.713
0.83
0.863
0.705
0.718
0.479
0.22
0.46
0.581
0.686
0.712
0.64
0.493
0.225
0.142
0.108
0.103
2.1
0.763
0.19
0.717
0.117
0.116
0.154
0.105
0.112
0.105
Hydrated
bentonite pellets
(11 to 117 ft
bgs).
20.1
16.8
19.2
13
5.1
5.5
4.1
5.4
6.8
24.6
17.7
13.8
10.7
10
18.6
29.4
16
23.7
6.5
25.4
20.2
8.3
24.6
13.2
18.1
14.2
5.2
15.3
23.7
SC
CH
CL
CH
ML
CL
SW
ML
SP
SM
SM
MW29-
SB052820-
82
MW29-
SB052820-
104
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
85
90
95
100
105
110
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 4 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
115.0
117.0
122.0
124.0
130.0
132.0
135.0
Silty GRAVEL with Sand: reddish brown (2.5 YR 4/4); 40%
gravel, well graded, subangular to subrounded, up to 4 inches;
30% sand, well graded; 25% silt, non-plastic; 5% clay, some
nodules; moist.
Clayey SAND with Gravel: 70% sand, well graded; 20% clay,
low plasticity; 10% gravel, poorly graded, fine; wet.
Same as above except gravel content increases to 30% and
becomes well graded and moist. Sand content decreases to
50%.
Silty GRAVEL with Sand: brown (7.5 YR 5/3); 40% gravel,
well graded, angular to subrounded; 30% sand, well graded,
subangular to subrounded; 30% silt; moist.
CLAY: 90% clay; 10% sand, poorly graded, coarse; moist to
wet.
Same as above except sand is very fine to fine.
CLAY with Gravel: reddish brown (2.5 YR 4/4); moist.
Silty SAND with Gravel: reddish brown (5 YR 5/4); moist.
Clayey GRAVEL with Sand: reddish brown (2.5 YR 4/4); 40%
gravel , well graded, fine to coarse, angular to subrounded, up
to 3 inches; 35% sand, well graded; 25% clay, low plasticity;
moist.
0.308
0.259
0.147
0.134
0.17
0.198
0.219
0.217
0.234
0.392
0.513
0.684
0.61
0.415
0.333
0.343
0.385
0.457
0.239
0.298
0.465
0.489
0.236
#10/20 sand
filter pack (117
to 132 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (120
to 130 ft bgs).
11.4
11.6
2.8
4.2
2.7
0.5
6.9
43.4
7.1
21.7
4.6
5.2
2.2
2.8
2.9
4.2
10.9
9.6
12.6
37.7
22.2
5.4
98.1
47.5
GM
SC
GM
CL
CL
SM
GC
MW29-
SB052920-
115
MW29-
GW052920-
120
MW29-
SB052920-
122
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
115
120
125
130
135
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 5 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
140.0
141.0
143.0
154.0
156.0
159.0
167.0
167.5
CLAY with Gravel.
Silty SAND with Gravel.
CLAY with Sand: reddish brown (2.5 YR 4/4); 70% clay; 25%
sand, poorly graded, very fine, subangular to subrounded; 5%
gravel, fine, subrounded, up to 0.5 inch; moist.
Color changes to brown (7.5 YR 5/4).
Color changes to brown (5 YR 5/4); slough.
Silty SAND with Gravel: 60% sand, well graded, subangular to
subrouned; 20% silt, non-plastic; 20% gravel, subangular to
subrounded, up to 4 inches; moist.
CLAY with Sand: reddish brown (5 YR 5/4); 70% clay; 25%
sand, poorly graded, very fine, subangular to subrounded; 5%
gravel, fine, subrounded, up to 0.5 inch; moist.
Gravelly CLAY with Sand: light reddish brown (5 YR 6/4);
70% clay; 20% gravel, poorly graded, fine to medium, angular
to subrounded; 10% sand, poorly graded, very fine,
subangular to subrounded; moist.
Gravel size increases to coarse, up to 4 inches.
Transition from clay to silt.
0.32
0.212
0.277
0.324
0.121
0.152
0.227
0.257
0.42
0.554
0.558
0.226
0.379
0.361
0.428
0.402
0.21
0.276
0.237
0.345
0.329
0.239
0.462
0.359
0.262
0.209
0.14
0.266
0.278
Hydrated
bentonite pellet
seal (132 to 187
ft bgs).
28.1
21.2
1.2
10.3
17.1
25.6
16.3
3.5
4.4
2.6
1.4
3.1
0.8
1.1
6
5.4
12
8.9
11.2
9.1
4.8
4.9
19
21.2
7.9
38
30.1
33
42.2
CL
SM
CL
SM
CL
CL
MW29-
SB052920-
144
MW29-
SB052920-
155
MW29-
SB052920-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
140
145
150
155
160
165
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 6 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
169.0
170.0
173.0
176.0
176.3
180.0
182.0
182.6
183.3
184.5
185.5
186.7
187.0
190.0
196.0
Clayey GRAVEL with Silt: 40% gravel; 30% clay; 15% silt;
15% sand.
Silty GRAVEL: pinkish gray (5 YR 7/2); 50% gravel, angular
to subrounded; 25% silt; 25% sand, poorly graded, very fine to
medium; dry.
Clayey GRAVEL: reddish brown (2.5 YR 4/4); 40% gravel,
well graded, up to 4 inches; 40% clay, low plasticity; 20%
sand, well graded.
Gravelly Lean CLAY: 60% clay, low plasticity; 30% gravel;
10% sand.
4 inch long by 6 or 7 inch wide boulder.
Gravelly CLAY with Sand: 55% clay; 25% gravel, well graded,
subangular to subrounded, up to 3 inches; 20% sand, well
graded.
Low Recovery.
Gravelly CLAY: 70% clay; 20% gravel, fine to medium,
subangular to subrounded; 10% sand.
8 inch boulder.
Gravelly CLAY: 70% clay; 20% gravel, fine to medium,
subangular to subrounded; 10% sand.
Clayey SAND with Gravel: gravel is well graded, subangular to
subrounded, 15 to 25%.
Gravelly CLAY: 70% clay; 20% gravel, fine to medium,
subangular to subrounded, up to 3 inches; 10% sand.
Silty GRAVEL with Sand: 45% silt; 30% gravel; 25% sand; dry
to moist.
CLAY: 90% clay; 10% sand; moist.
Water Encountered.
Clay is low plasticity with silt mixed in.
Trace coarse gravel, up to 5 inches in diameter.
CLAY: 90% clay; 10% sand, poorly graded, very fine; trace
gravel, fine, subangular, trace coarse cobbles/boulders up to 5
inches; moist.
CLAY with Gravel and Sand: reddish brown (2.5 YR 4/4);
1.02
0.269
0.226
0.396
0.243
0.231
0.911
0.646
0.64
0.674
1.04
0.36
0.173
0.153
0.317
0.202
0.192
0.238
0.108
0.284
0.515
0.582
0.58
0.201
0.455
0.411
0.343
0.375
0.306
Hydrated
bentonite pellet
seal (132 to 187
ft bgs).
#10/20 sand
filter pack (187
to 202 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (190
to 200 ft bgs).
25.5
38.3
2.5
11.9
31.8
46
6.2
14.6
22.4
26.4
34.5
51.2
37.6
33.9
5.7
13
4.2
2.2
33.9
45.6
45.8
3.7
4.1
2.3
4.2
0.1
1
1.1
4
5
GC
GM
GC
CL
CL
CL
CL
SC
CL
ML
CL
CL
167
MW29-
SB052920-
178
MW29-
SB052920-
187
MW29-
GW053120-
191
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 7 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
198.0
199.6
201.0
201.3
201.8
202.0
207.0
210.0
211.0
220.0
75% clay; 15% sand, poorly graded, very fine; 10% gravel,
well graded, subangular to subrounded, up to 4 inches.
Increase in well graded gravel.
Gravelly CLAY with Sand: 40% clay; 35% gravel, well graded,
angular to subrounded; 25% sand, well graded, fine to coarse;
moist, dries quickly.
Sandy CLAY: 70% clay; 30% sand, well graded.
Sand is poorly graded, very fine to fine; moist to wet.
3 inches of sandstone.
Gravelly CLAY with Sand.
Sandy CLAY: trace fine gravel.
CLAY with Sand: reddish brown (2.5 YR 4/4); 80% clay, low
plasticity; 20% sand, poorly graded, very fine; trace coarse
gravel.
From 204 to 204.5 ft bgs, 40% coarse gravel, subrounded, up
to 6 inches.
Clayey GRAVEL with Sand: 40% gravel, well graded,
subangular to subrounded, up to 3 inches; 25% clay; 35%
sand, well graded; moist.
CLAY: brown (7.5 YR 5/4); 90% clay, low plasticity; 5% sand,
fine; 5% silt; moist to dry .
Gravelly CLAY: gray (5 YR 6/1); 60% clay, medium plasticity;
30% gravel, subangular to subrounded, up to 3 inches; 10%
sand, poorly graded, fine; moist to dry.
Color changes to brown (7.5 YR 5/3).
Gravelly CLAY: light brown (7.5 YR 6/3); 60% clay, medium
plasticity; 30% gravel, mostly well graded, subrounded, up to
5 inches in diameter; very large boulders; 10% sand, fine.
0.367
0.305
0.176
0.283
0.479
0.542
0.436
0.347
0.508
0.542
0.102
0.133
0.116
0.175
0.671
0.577
0.24
0.172
0.39
0.624
0.37
0.311
0.022
0.178
0.162
0.234
0.21
0.182
Hydrated
bentonite pellet
seal (202 to 227
ft bgs).
7.2
11.2
62.8
34.9
0
0
0
0
0
0.2
0.7
0.3
0.4
1.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CL
CL
CL
SW
CL
CL
CL
GC
CL
CL
MW29-
SB053120-
198
MW29-
SB053120-
207
MW29-
SB053120-
217
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
200
205
210
215
220
225
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 8 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
230.0
235.0
240.0
250.0
251.0
Color changes to light brown (7.5 YR 6/4); gravel increases to
40% and is medium to large grained.
CLAY with Gravel: brown (7.5 YR 5/4); 75% clay; 15% gravel,
well graded, up to 3 inches in diameter; 10% sand, fine;
moist.
Silty SAND with Gravel: 50% sand, well graded, subangular to
subrounded; 30% gravel, up to 3 inches in diameter; 20% silt;
wet.
CLAY: reddish brown (5 YR 4/4); 95% clay, medium to high
plasticity; 5% sand, very fine; trace gravel, well graded.
CLAY with Gravel: reddish brown (2.5 YR 4/4); 85% clay;
15% gravel, subangulr to subrounded, up to 2 inches.
CLAY with Gravel: light brown (7.5 YR 6/4); gravel is fine to
medium, subangular to subrounded, up to 2 inches.
0.149
0.254
0.241
0.389
0.266
0.186
0.45
0.442
0.465
0.446
0.165
0.307
0.206
0.101
0.879
0.206
0.391
0.337
0.448
0.663
0.502
0.217
0.317
0.457
0.188
0.207
0.21
0.541
0.168
0.216
0.202
#10/20 sand
filter pack (227
to 242 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (230
to 240 ft bgs).
Hydrated
bentonite pellet
backfill (242 to
340 ft bgs).
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.02
13.4
5.7
9.8
0.2
6.5
6.3
11.3
16.2
1.8
17.9
1.5
10.4
38.9
CL
CL
SM
CH
CL
CL
MW29-
SB053120-
227
MW29-
GW060120-
230
MW29-
SB060120-
240
MW29-
SB060120-
250
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
230
235
240
245
250
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 9 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
255.0
259.0
260.0
263.0
263.5
265.5
266.5
267.5
269.5
270.0
271.0
273.0
275.5
280.0
CLAY with Sand and Gravel: light brown (7.5 YR 6/4); 55%
clay; 25% sand; 20% gravel; wet - saturated.
Low Recovery.
CLAY with Sand and Gravel: brown (7.5 YR 5/3); 55% clay,
low to medium plasticity; 25% sand, well graded; 20% gravel,
well graded, fine to medium, trace coarse; moist to wet.
CLAY: 95% clay, very stiff; 5% fine sand and gravel; moist.
CLAY with Sand and Gravel: brown (7.5 YR 5/3); 55% clay,
low to medium plasticity; 25% sand, well graded; 20% gravel,
well graded, fine to medium, trace coarse; moist.
CLAY with Gravel: 70% clay, very stiff; 10% sand, well
graded, fine to coarse; 20% gravel, well graded, up to 2
inches; moist.
Silty GRAVEL: pink (7.5 YR 7/3); 50% gravel, angular to
subrounded; 35% silt, non-plastic; 15% sand, poorly graded,
very fine to fine, dry.
Sandy CLAY: 65% clay, low plasticity; 30% sand, poorly
graded, very fine to fine, subangular to subrounded; 5%
gravel, fine, subangular.
Gravelly CLAY with Sand: 60% clay; 15% sand; 25% gravel.
GRAVEL: cemented gravel; hard.
No Recovery.
Silty SAND with Gravel: pale brown (10 YR 6/3).
No Recovery. Casing became stuck in formation and sample
was lost while vibing it out. It is possible that sample came
from 273 to 275.5 ft bgs.
CLAY with Sand and Gravel: reddish brown (2.5 YR 4/3);
85% clay, low plasticity, stiff; 15% sand, poorly graded, very
fine to fine, subangular to subrounded; trace gravel, fine.
0.203
0.347
0.215
0.271
0.193
0.215
308
0.257
0.187
0.165
0.262
0.204
0.48
0.359
0.302
0.186
0.122
0.112
0.321
0.461
Hydrated
bentonite pellet
backfill (242 to
340 ft bgs).
51
123.4
18.1
9.6
6.8
20
8.2
18.4
6.9
1.6
4.7
33.1
32.4
2.5
4.1
8.1
24.3
2
8
1.6
3.2
CL
CL
CL
CL
CL
GM
CL
CL
GW
SM
MW29-
SB060120-
256
MW29-
GW060220-
260
MW29-
SB060220-
267
MW29-
SB060320-
273
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
255
260
265
270
275
280
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 10 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
300.0
301.0
301.3
302.0
305.0
307.5
310.0
Clay is firm.
Clay is very stiff.
Clay is stiff.
CLAY: 90% clay, medium plasticity; 10% sand, very fine; stiff;
moist.
3-inch GRAVEL layer.
CLAY: 90% clay, medium plasticity; 10% sand, very fine; stiff;
moist.
CLAY: 90% clay, medium plasticity; 10% sand, very fine;
trace gravel, fine, 0.25 inch diameter.
CLAY: 85% clay; 10% sand, very fine; 5% gravel,
subrounded, up to 0.5 inch.
CLAY: 90% clay, medium plasticity; 5% sand, very fine; 5%
silt.
CLAY with Sand and Gravel: reddish brown (2.5 YR 4/4);
0.509
0.554
0.556
0.462
0.479
0.365
0.324
0.267
0.343
0.321
0.295
0.285
0.197
0.254
0.278
0.867
0.574
0.361
0.584
0.312
0.301
0.31
0.353
0.296
0.191
0.294
Hydrated
bentonite pellet
backfill (242 to
340 ft bgs).
3.2
1.1
1.5
1.8
2.4
3
2.5
1.9
2.5
3.2
2.6
1.6
2
1.4
2.2
2.6
1.1
4.1
3.7
3.5
2.5
1.5
1.3
2.7
2.8
7.8
10.2
CL
CL
GW
CL
CL
CL
CL
MW29-
SB060320-
282
MW29-
SB060320-
292
MW29-
SB060320-
302
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
285
290
295
300
305
310
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 11 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
313.5
314.0
316.0
316.3
318.0
319.0
320.0
329.0
330.5
331.0
332.5
337.0
80% clay; 10% sand, poorly graded, very fine; 10% gravel,
well graded, fine, subangular to subrounded, up to 0.75 inch.
GRAVEL and SAND: cemented gravel and sand.
Gravelly SILT: 65% silt, non-plastic; 30% gravel, well graded,
subangular to subrounded, up to 1 inch; 5% sand, poorly
graded, very fine.
Clay is present.
4-inch layer of powdery silt.
Clayey SILT: 40% silt (40%); 35% clay; 20% gravel; 5% sand.
CLAY with Gravel.
Gravelly SILT: 65% silt, non-plastic; 30% gravel, well graded,
subangular to subrounded, up to 1 inch; 5% sand, poorly
graded, very fine.
Clayey SAND with Gravel: 40% sand, well graded; 40% clay;
20% gravel, well graded, up to 2 inches; dense; moist to wet.
Same as above except sand increases to 40%; clay decreases
to 30%, low plasticity; and gravel increases to 30%; dry to
moist.
Gravelly Clay: brown (7.5 YR 5/3).
Clayey GRAVEL.
Gravelly CLAY: 70% clay; 20% gravel, well graded, fine to
coarse, up to 1 inch; 10% sand, well graded.
Clayey GRAVEL with Sand: 40% gravel, well graded; 30%
sand, well graded; 30% clay; moist.
Coarse gravel up to 3 inches in diameter from 334.5 to 335 ft
bgs.
Gravelly CLAY: brown (7.5 YR 5/3); 70% clay; 20% gravel, up
to 3 inches; 10% sand, well graded.
0.192
0.183
0.501
0.604
0.453
0.134
0.483
0.243
0.24
0.221
0.219
0.313
0.353
0.2
0.174
0.192
0.149
0.141
0.386
0.231
0.243
0.126
0.801
0.21
0.925
0.66
0.571
0.359
Hydrated
bentonite pellet
backfill (242 to
340 ft bgs).
5.1
10.6
16.2
22.8
10.4
14.2
28.8
5.7
25.5
2.2
1.2
6.6
5.7
5.6
16
8.6
23.7
14.3
7.7
14.7
6.7
16.3
12.2
14.5
17.5
11.9
13
CL
ML
ML
ML
CL
ML
SC
CL
GC
CL
GC
CL
MW29-
SB060320-
314
MW29-
SB060320-
328
MW29-
SB060420-
337
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020
315
320
325
330
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 12 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
340.0Becomes hard; cemented; may have some silt and clay.
End of boring at 330 ft bgs.
11.6
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/27/2020 - 6/4/2020700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-29
PAGE 13 OF 13
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
12.0
14.0
20.0
22.0
27.5
30.0
32.0
34.5
No recovery. Hydrovac clearing from 0-10' bgs.
GRAVEL with Silt and Sand: dark brown (7.5 YR 3/4); 70%
fine gravel with a few cobbles/coarse gravel; 15% sand; 15%
silt; moist.
GRAVEL: 90% well graded gravel and cobbles, subangular;
10% sand; loose; dry.
Silty GRAVEL with Sand: brown (7.5 YR 5/4); 65% gravel,
well graded, rounded; 15% silt; 15% sand; 5% clay; loose;
moist; some FeO staining. 3 to 4 inch cobbles around 18 ft
bgs. Cohesive, angular, large cobbles around 20 ft bgs.
GRAVEL with Sand: 60% fine to coarse gravel, 6 to 8 inch
cobbles; 40% sand; loose; dry.
Silty GRAVEL 70% gravel, subangular to subrounded, 6 to 8
inch cobbles; 30% silt; cohesive in places; moist.
GRAVEL with Sand and Silt: brown (7.5 YR 4/4); 70% fine to
coarse gravel; 30% sand; 10% silt; loose; weakly cemented in
places; moist.
CLAY with Gravel: reddish brown (5 YR 4/3); 80% clay; 20%
fine gravel; cohesive; stiff; moist.
SAND with Gravel: 70% fine to coarse sand; 30% fine gravel;
moist.
0.185
0.185
0.331
0.078
0.14
0.157
6.78
0.445
0.206
0.385
0.152
Vault with
cement surface
seal
Bentonite Grout
(3.5 to 20 ft
bgs).
Hydrated
bentonite pellets
(20 to 27 ft bgs).
6" soil vapor
point at 30 ft
bgs; #10/20
sand filter pack
(27 to 33 ft bgs).
8.2
8.2
11.9
12.4
4.8
7.1
18.4
41.3
10.1
26
27
20.6
100.5
1.5
2
2.1
0.7
GP
GM
GW
GM
GW
GM
GW
GM
CL
SW
MW30-
SB052220-
15
MW30-
SB052220-
29
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Milller, Frank Morris
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4723.07
See Table 5
Groundwater was encountered at approximately 240 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
5/22/2020 - 6/8/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 1 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
39.0
43.0
45.0
50.0
60.0
66.0
75.0
SILT: light gray (10 YR 7/2); 50% silt; 40% clay; 10% sand;
firm to stiff; cohesive; moist to wet.
Silty SAND with Gravel: brown (7.5 YR 5/4); 50% sand; 25%
silt; 25% gravel; loose; moist. Becomes cohesive near 40.8 ft
bgs.
SAND with Gravel: reddish brown (5 YR 4/4); 80% fine to
coarse sand, 20% fine to coarse gravel; loose; moist.
Silty GRAVEL: reddish brown (5 YR 4/4); 70% gravel, angular
to subrounded, 30% silt; dense; moist. Becomes cohesive and
has less gravel around 48 ft bgs.
Silty GRAVEL: light brown (7.5 YR 6/3); 85% gravel; 15% silt;
cemented; dense; dry to moist.
GRAVEL with Sand and Silt: 60% fine to coarse gravel; 30%
fine sand; 10% silt; loose; dry to moist. Becomes moist and
increase in silt around 57.5 ft bgs. Becomes weakly cemented
around 59 ft bgs.
SAND with Gravel and Silt: reddish brown (5 YR 4/4); 50%
sand, subangular to subrounded; 40% gravel; 10% silt; loose;
moist. Few large cobbles near 65 ft bgs. 8 inch cobbles near
66 ft bgs.
Silty GRAVEL: reddish brown (5 YR 4/4); 60% fine to coarse
gravel, angular; 40% silt; cohesive in places; moist. Cohesive
near 70 ft bgs.
0.174
0.161
0.085
0.159
0.105
0.115
0.172
0.135
0.137
0.151
0.157
0.251
0.12
0.202
0.084
0.125
0.169
0.242
0.14
Hydrated
bentonite pellets
(33 to 237 ft
bgs).
0.4
0.6
0.3
1.9
5.1
6.2
4
1.6
6.1
11.3
15.9
12.8
33.2
68.5
18.5
17.8
12.5
27
37
17.5
6.7
42.2
22.9
14.2
12.5
9.6
24.1
20.2
55
ML
SM
SW
GM
GW
GM
SW
SM
GM
MW30-
SB052220-
48
MW30-
SB052220-
53
MW30-
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 2 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
90.0
95.0
96.0
98.0
105.0
110.0
115.0
GRAVEL with Sand and Silt: dark reddish brown (5 YR 3/4);
60% fine to coarse gravel; 30% fine to medium sand; 10%
silt; loose; moist. Silty lense at 86 ft bgs. Large cobbles (4 to 6
inches) at 89.5 ft bgs.
GRAVEL with Sand: brown (7.5 YR 5/4); 65% fine to coarse
gravel; 35% sand, angular to subrounded; loose; moist;
weakly cemented in places. 4 inch cobble at 92.7 ft bgs.
Silty GRAVEL: brown (7.5 YR 5/4); 60% fine to coarse gravel;
40% silt; cohesive; moist.
GRAVEL: fine to coarse, very dense, cemented. Less
cemented near 98 ft bgs.
GRAVEL with Sand: pale brown (10 YR 6/3); 70% fine to
coarse gravel, sunangular to subrounded, 6 to 8 inch cobbles;
30% sand; dense; dry. Cemented in places near 100 ft bgs.
Cemented near 104 ft bgs.
Silty GRAVEL: 70% fine to coarse gravel, angular to
subangular; 30% silt; moist. Cohesive near 106.5 ft bgs.
Weakly cemented near 108.5 ft bgs.
GRAVEL with Sand and Silt: reddish brown (5 YR 5/3 to 4/3);
medium to coarse gravel; dry to moist.
0.161
0.042
0.154
0.138
0.19
0.126
0.186
0.317
0.509
0.828
0.35
0.403
0.165
0.216
0.288
0.703
Hydrated
bentonite pellets
(33 to 237 ft
bgs).
32.3
20
14.7
15.4
15.1
17.8
45
17.7
16.1
17.1
13.5
20.2
77.6
52.4
67.8
48.2
83.4
28.4
113.2
154.4
131.9
32
16.3
31.1
161
90.3
58.3
GW
GM
GW
GM
GW
GW
GM
GW
GM
SB052220-
74
MW30-
SB052220-
95
MW30-
SB052220-
102
MW30-
SB060220-
111
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 3 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
118.0
122.5
123.5
125.0
130.0
140.0
141.0
GRAVEL with Sand and Silt: reddish brown (5 YR 5/3 to 4/3);
medium to coarse gravel; dry to moist.
Silty GRAVEL with Sand: brown (5 YR 5/3); subangular
clasts, up to 4 inch cobbles; trace clay; dry.
Clay Matrix.
Silty GRAVEL with Sand: brown (5 YR 5/3); subangular
clasts, up to 4' inch cobbles; trace clay; dry.
SAND and GRAVEL: pinkish gray (5 YR 7/2); subangular to
subrounded cobbles; some silt; dry. Brown (5 YR 4/3) from
125.5 to 126.5 ft bgs. Clay increases at 127.5 ft bgs.
Silty GRAVEL with Sand: reddish brown (2.5 YR 4/4); slightly
more oxidized, red/brown clay approximatley 30% in upper
zone; clay decreases with depth, . Hard zone at 135 to 135.5
ft bgs. Large, 3 to 4 inch, cobbles from 135 to 136 ft bgs.
Silty GRAVEL: pinkish gray (5 YR 7/2); dry. Clay presented
from 136 to 138 ft bgs.
Clayey GRAVEL with Silt: light red (2.5 YR 6/6); minor iron
staining.
Silty GRAVEL: reddish brown (5 YR 4/4); grading to more silty
gravel, very loose, dry. Clay rich clayey gravel zone from 143
to 143.5 ft bgs. More abundant iron staining, light red (2.5 YR
6/6] from 148 to 149 ft bgs.
Silty GRAVEL with Sand: reddish brown (5 YR 5/3); dry;
sand-rich zone from 153-154 ft bgs.
0.299
0.367
0.23
0.295
0.121
0.369
0.162
0.312
0.608
0.143
0.151
0.339
0.19
0.135
0.164
0.104
1.21
0.601
Hydrated
bentonite pellets
(33 to 237 ft
bgs).
36.2
138.2
116.7
58.9
63.1
8.6
85.2
64.7
66.3
18.1
168.2
144.4
74.6
43.2
51.2
51
62.4
32.5
80.3
32
38.2
18.4
42.5
41
26.2
28.2
25.4
15
14.6
15.6
12.7
3.7
2.5
10.3
GW
GM
GM
CL
GM
SW
GM
GC
GM
MW30-
SB060220-
135
MW30-
SB060220-
151
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 4 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
156.0
157.0
169.0
171.5
189.0
193.0
195.0
SAND with Gravel: fine to medium, very loose.
SAND and GRAVEL with Silt: light reddish brown (5 YR 6/4);
very loose; dry.
Oxidized zone from 160 to 161 ft bgs.
Slight color change at 162 ft bgs to pinkish gray (7.5 YR 6/2).
Color change at 166.5 ft bgs to gray (7.5 YR 6/1); 3 inch
layer.
Gravelly CLAY with Silt: dark reddish brown (2.5 YR 3/4);
non-plastic, trace of limonite, possible magnetite, black grains;
dry to moist.
Silty GRAVEL with Sand: pinkish gray (5 YR 6/2); large,
subangular, 5 inch clasts, similar gray (7.5 YR 6/1) zone
intermittent, increase in clay content 178.5 to 179 ft bgs.
GRAVEL with Sand and Silt: light gray (7.5 YR 7/1); fine to
coarse sand; very loose.
Light gray (7.5 YR 7/1) from 191 to 191.6 ft bgs; dry; 8 inch
layer.
Color change to brown (7.5 YR 4/4) at 191.6 ft bgs. Slightly
more fines.
GRAVEL with Sand: medium to coarse sand; 3 inch cobbles;
trace silt; very loose; dry.
0.13
0.178
0.166
0.157
0.177
0.215
0.452
4.22
0.216
0.084
0.369
0.49
0.148
0.234
0.3
0.187
0.359
0.166
Hydrated
bentonite pellets
(33 to 237 ft
bgs).
7.2
3.2
2.4
1.6
1.9
13.3
28.8
10
9.9
13.7
13.9
67.1
44.6
58.4
13.2
18.4
32.4
26.5
27.3
12.7
29.2
9
10
18.2
19.6
18.4
30.2
15.2
25.8
20.7
13.8
30.4
12.7
3.7
6.3
SW
SW
SM
CL
GM
GW
GM
GW
MW30-
SB060220-
169
MW30-
SB060220-
178
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 5 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
197.0
199.0
200.0
206.0
208.0
210.0
214.0
217.0
218.0
224.0
229.5
230.0
233.0
235.0
Color change to light gray.
GRAVEL with Sand: reddish brown (5 YR 5/4); medium to
coarse sand; 3 inch cobbles; trace silt; very loose; dry. Clay
increases from 195.5 to 196.5 ft bgs; dry to moist.
Silty GRAVEL; medium to coarse sand; loose; dry.
Pulverized rock, white to light gray.
SAND with Gravel and Silt: trace clay; moist to dry.
Increase in gravel, well graded, at 201.5 ft bgs.
Increase in clay/silt matrix from 202 to 203.5 t bgs.
Gravelly CLAY: reddish brown (5 YR 5/4); low plastisity; 1
inch clasts; medium stiff; dry to moist.
SAND and GRAVEL with Silt : reddish gray (5 YR 5/2);
medium to coarse sand; greater than or equal to 1 inch gravel;
very loose; dry. Rock Pulverized at 210 ft bgs.
SAND and GRAVEL with Silt: reddish brown (5 YR 5/4);
medium to coarse sand, angular to subangular; dry.
Clayey GRAVEL with Sand: reddish brown (5 YR 5/4);
greather than 15% clay; loose.
GRAVEL and Crushed Rock at 217 ft bgs.
Clayey GRAVEL with Silt: silt percentage increases with
depth; dry to moist.
Large 4 inch cobble at 223 ft bgs.
GRAVEL with Sand and Silt: very loose; dry.
CLAY: olive gray (5 Y 5/2; greenish gray; slightly plastic;
mottled; dry.
Gravelly CLAY with Sand: reddish brown (5 YR 5/3 to 5/4);
low plasticity; dry to moist.
GRAVEL with Sand and Silt: gray (5 YR 6/1); 2 to 3 inch
cobbles; very loose; dry.
0.252
0.138
0.364
1.51
0.849
0.898
0.236
0.882
1.04
0.155
0.336
0.357
Hydrated
bentonite pellets
(33 to 237 ft
bgs).
8.2
8.4
5.7
4.5
20.8
83.6
49.8
129.9
11.2
12.8
7.9
5.8
3.7
10.5
2.7
5.2
9.2
15.7
13.1
20
40.7
52.7
130.2
4.9
14.7
3.9
21.8
4.6
12.3
13.3
12
3.9
10.7
4.2
17.3
25.2
98.4
GW
GM
SW
SM
CL
SW
SM
SW
SM
GC
GC
GW
GM
CL
GC
GW
GM
MW30-
SB060320-
204
MW30-
SB060320-
222
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 6 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
241.0
243.0
245.0
246.0
247.0
249.5
251.0
252.0
259.0
260.0
262.0
274.0
GRAVEL with Sand and Clay.
Clay-rich zone at 237 ft bgs; wet. Saturated below 237 ft bgs.
Gravelly CLAY: large rock clast in clay matrix; dry to moist.
Clayey GRAVEL with Sand: moist.
GRAVEL with Sand and Silt: saturated.
Gravelly CLAY: medium stiff; moist.
Sandy CLAY with Gravel: brown (7.5 YR 5/4); slightly plastic;
medium stiff; moist to wet.
Silty SAND with Gravel: medium to coarse sand; well rounded
gravel; saturated at 250 ft bgs.
Grading to gravel with sand.
Gravelly CLAY with Silt: reddish brown to weak red (2.5 YR
5/4 to 5/2); slightly stiff to stiff; dry to moist.
Coarse gravel zone with heavy clay matrix; dry to moist.
Gravelly CLAY with Silt: reddish brown to weak red (2.5 YR
5/4 to 5/2); slightly stiff to stiff; dry to moist.
Gravelly CLAY with Silt: reddish brown to red (2.5 YR 5/4 to
5/6); slightly plastic; dry to moist.
Coarser gravel with heavy clay matrix at 265 ft bgs; dry to
moist.
Clayey GRAVEL: fairly loose; dry to moist. Grades to coarse
0.669
0.51
0.159
0.225
0.141
0.27
0.255
0.2
0.195
0.308
0.151
0.138
0.037
0.057
0.638
0.043
0.047
0.195
0.226
#10/20 sand
filter pack (237
to 253 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (240
to 250 ft bgs).
Hydrated
bentonite pellet
seal (253 to 280
ft bgs).
3.9
2.4
0.3
1.2
0.5
0.9
1.3
4.2
3.1
1.8
0.9
3.8
5.1
6.8
2.1
2.2
1.9
2.5
2.4
1.7
2.3
3.1
1.2
2.6
2.6
3.6
3.5
9
18.6
18.7
0.7
3
12.5
15.5
19.6
GW
GC
CL
GC
GW
GM
CL
CL
SM
GW
CL
GP
CL
CL
MW30-
GW060420-
237
MW30-
SB060320-
237
MW30-
SB060420-
266
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 7 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
276.0
277.0
278.0
279.0
281.0
283.5
287.0
288.5
290.0
291.5
293.0
300.0
301.0
303.0
306.0
306.3
308.5
310.0
313.0
sand and gravel below.
SAND and GRAVEL: pink (5 YR 7/3); coarse sand and
gravel; dry to moist.
CLAY with Gravel: dry.
Clayey GRAVEL; dry to moist.
GRAVEL with Sand and Silt: reddish brown (2.5 YR 4/4); dry
to slightly moist; more silt from 280 to 281 ft bgs.
Gravelly CLAY with Silt: reddish brown (2.5 YR 4/3);
non-plastic; stiff; dry to moist.
GRAVEL with Sand, Clay and Silt: reddish brown (2.5 YR
5/3); 3 to 4 inch clasts; moist to wet.
SAND and GRAVEL: pale red (2.5 YR 7/2); mostly gravel;
medium to coarse sand; some silt; dry.
SAND with GRAVEL: coarse sand; some silt; very loose;
saturated.
Top 1.5 ft bgs of core missing.
Gravelly CLAY with Silt: reddish brown (2.5 YR 4/3); stiff; dry
to moist.
GRAVEL with Sand and Silt: pale red (2.5 YR 7/2); dry to
moist. Hard drilling. Large boulder of sandstone or quartzite
cored 294 to 295.2 ft bgs.
Becomes moist to wet from 297 to 298 ft bgs.
Angular clasts of broken shale; rounded to subrounded clasts
of metamorphic rock and quartz; dry; reddish brown (2.5 YR
4/3).
Missing to 1'- hard drilling.
Clayey GRAVEL: reddish brown (5 YR 5/3); mottling; moist to
wet. Iron staining at 301.5 ft bgs.
Sandy SILT; matrix predominant. Slightly moist from 304 to
308 ft bgs.
CLAY Lens.
Clayey GRAVEL.
GRAVEL with Sand and Silt: pinkish gray (5 YR 6/2); coarse;
very loose.
Missing Core; washed out.
Gravelly CLAY with Silt: 2 inch clasts; moderately stiff to stiff;
moist.
0.286
0.426
0.211
0.036
0.061
0.038
0.315
0.009
0.114
0.118
0.131
0.032
0.003
0.035
0.089
0.003
0.012
#10/20 sand
filter pack (280
to 294 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (282
to 292 ft bgs).
Hydrated
bentonite pellet
seal (294 to 314
ft bgs).
49.2
46.5
58.6
49
5.1
30.4
27.3
24.2
28.8
23.1
27.4
16.6
28.1
20.8
20.3
16.4
28.6
21.8
33.3
78.7
62.4
51.6
5
29.1
21.6
26.1
23
15.4
30.6
31.5
51.1
53
294.2
GC
SW
CL
GC
GW
GM
CL
GW
GC
SW
SP
CL
GW
GM
GC
ML
CL
GC
GW
GM
CL
MW30-
GW060520-
280
MW30-
SB060520-
286
MW30-
GW060520-
298
MW30-
SB060520-
306
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
280
285
290
295
300
305
310
315
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 8 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
316.5
320.0
321.0
325.0
327.5
330.0
335.5
337.5
339.0
340.0
341.5
342.5
345.0
346.0
349.0
350.0
Silty GRAVEL: 15% clay; very loose; saturated.
Missing; too wet for description.
Gravelly CLAY and Sand with Gravel: alternating 1 foot beds.
SAND with Gravel and Silt: fine to medium sand.
Color change to alternating reddish brown and pinkish gray ( 5
YR 4/3 and 7/2) from 325.5 to 326.5 ft bgs.
Moist to wet at 326.5 ft bgs.
Silty GRAVEL: broken shale clasts.
Light red (2.5 YR 6/8); oxidized iron staining from 329 to 330
ft bgs.
Gravelly CLAY with Silt : reddish brown (2.5 YR 5/3); low
plasticity; stiff; moist to dry.
Silty GRAVEL with Clay: moist to wet.
Gravelly CLAY with Silt: iron stained clasts; stiff to very stiff;
dry.
Silty GRAVEL with Clay.
Gravelly CLAY: reddish brown (2.5 YR 5/3); moist.
Silty GRAVEL: some sand; dry to moist.
Gravelly CLAY with Silt: moist.
SAND and GRAVEL with Silt: moist.
Gravelly CLAY with Silt: moist to wet.
Clayey GRAVEL: some silt; moist.
End of boring at 350 ft bgs.
0.024
0.05
#10/20 sand
filter pack (314
to 330 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (317
to 327 ft bgs).
Hydrated
bentonite pellet
backfill (330 to
350 ft bgs).
219.3
420.1
448.5
3.8
17.2
89.4
221.7
715.2
617
479
90.6
14.1
55.5
112.3
11.8
4.6
12.3
13.7
5.7
5.5
2.2
5
6.3
2.8
36.3
18.1
23.2
4.4
1.1
2.3
8.9
GM
CL
SP
SM
GM
CL
GM
CL
GM
CL
GM
CL
SP
SM
CL
GC
MW30-
SB060720-
316.5
MW30-
GW060720-
320
MW30-
SB060720-
336
MW30-
GW060720-
340
Ferrous
Iron
soil
sample
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
5/22/2020 - 6/8/2020
320
325
330
335
340
345
350
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30
PAGE 9 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
12.0
18.0
20.0
22.0
24.0
26.0
27.0
31.0
32.5
Hydrovac to 10 ft bgs.
Silty GRAVEL with Sand: reddish brown (5 YR 5/4); 50%
gravel; 25% sand; 25% silt; elongated; dry.
Gravelly SILT: brown (7.5 YR 4/4); moist.
Silty CLAY with Gravel: brown (7.5 YR 4/4); moist.
Silty CLAY with Gravel: brown (7.5 YR 4/4); loose; coarse
gravel; moist.
Gravelly SILT with Sand: 50% silt; 30% gravel; 20% sand;
moist.
Gravelly SILT with Sand: same as above, becomes dry.
Gravelly SILT with Sand: 50% silt; 30% gravel, up to 4 inches
in diameter; 20% sand; moist.
Silty GRAVEL with Sand: brown (7.5 YR 4/4); 40% gravel,
some large up to 4 inches, poorly graded; 10% sand; 40% silt;
moist to dry.
Color changes to white (7.5 YR 8/1); hard rock layer;
powdery; dry.
Silty CLAY: reddish brown (5 YR 4/4); stiff; moist.
Silty GRAVEL: reddish brown (5 YR 4/4); 50% Gravel (50%)-
PG, Sand (10%)- F-C, Silt (40%). Loose; Moist .
0
0
Vault with
cement surface
seal
Bentonite Grout
(3 to 14 ft bgs).
Hydrated
bentonite pellets
(14 to 135 ft
bgs).
8.6
3.9
19.2
7
82.1
12
14.9
7.6
21.6
14.4
61.5
30.4
13.3
13.3
8.9
4.2
12.9
20.3
27.9
GM
ML
CL
CL
ML
ML
ML
GM
CL
GM
MW31-
SB060920-
15
MW31-
SB060920-
23
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4655.22
See Table 5
Groundwater was encountered at approximately 130 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
6/9/2020 - 6/12/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 1 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
36.0
40.0
41.5
42.5
45.0
46.5
50.0
52.0
53.5
55.0
58.2
60.0
68.0
70.0
72.5
74.0
Silty CLAY: reddish brown (5 YR 5/4); soft, loose; moist.
CLAY with Sand: brown (7.5 YR 5/4); 95% clay, 5% sand;
soft, moist.
Clayey GRAVEL: 75% gravel, poorly graded; 25% clay;
moist.
GRAVEL with Silt and Sand: dark gray (7.5 YR 4/1); 60%
gravel, poorly graded, elongated; 20% sand; 20% silt; moist to
dry.
CLAY with Sand: brown (7.5 YR 4/4); 95% clay, 5% sand;
soft.
GRAVEL with Silt and Sand: brown (7.5 YR 5/3); 70% gravel;
20% sand, poorly graded; 10% silt; moist to dry.
GRAVEL with Silt and Sand: brown (7.5 YR 4/4); 90% gravel;
5% sand, poorly graded, 5% silt; loose; moist to dry .
Silty CLAY with Gravel: brown (7.5 YR 4/4); loose, crumbles
easily.
GRAVEL with Silt and Sand: white (5 YR 8/1) and reddish
brown (5 YR 5/3); 90% gravel, 5% sand, 5% silt; loose, poorly
graded; moist to dry.
Gravelly SILT: 60% silt, 40% gravel, poorly graded; 3 inches
as silt, moist.
Silty CLAY with Sand: reddish brown (5 YR 4/4); doesn't roll,
but sticks together, some gravel less than 0.25 inch in
diameter; moist.
Silty CLAY with Sand: reddish brown (5 YR 4/4); 98% clay,
low plasticity; 2% sand, fine; soft to moderate; moist.
Silty GRAVEL with Sand: reddish brown (5 YR 4/4); 50%
gravel,poorly graded, elongated, up to 3 inches in diameter;
40% silt, 10% sand; loose; dry to moist.
Clayey SILT with Sand: brown (7.5 YR 5/3); 95% silt and clay,
5% sand, trace gravel, compact, soft to moderately hard;
moist.
Silty SAND with Gravel: brown (7.5 YR 5/4); 60% sand, 40%
gravel; loose; moist.
GRAVEL with Silt and Sand: white/pinkish; 60% gravel, poorly
Hydrated
bentonite pellets
(14 to 135 ft
bgs).
9.4
147
18.9
20
42
5.6
6.8
5.7
9
16.4
4
6.2
2
25.2
11.7
2.7
2.7
2.2
5.5
6
4.5
14.3
19.5
21.5
15.4
13.6
14.2
5
2.9
2.1
1.5
11.6
CL
CL
GC
GM
CL
GP
GP
CL
GP
ML
CL
CL
GM
ML
SM
MW31-
SB060920-
45
MW31-
SB060920-
62
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 2 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
76.0
80.0
80.5
82.5
84.0
90.0
91.0
92.2
96.0
97.0
100.0
102.5
104.0
107.5
109.0
110.0
112.8
115.0
graded, trace 4 inch round pieces; 20% sand; 20% silt; loose.
GRAVEL with Silt and Sand: reddish brown (5 YR 4/4); 70%
gravel, poorly graded, some 2 to 3 inches in diameter; 15%
sand; 15% silt; dry to moist.
Silty CLAY: 6 inches of silty clay with gravel.
GRAVEL with Silt and Sand: reddish brown (5 YR 4/4); 90%
gravel, coarse, poorly graded, 5% sand, 5% silt; loose; dry to
moist.
Silty CLAY with Gravel and Sand: reddish brown (2.5 YR 4/4);
80% silty clay, 20% sand and gravel; compact; moist.
GRAVEL with Silt and Sand: reddish brown (5 YR 4/4); 90%
gravel,coarse, poorly graded, some 2 inch gravel, elongated;
5% sand, 5% silt, loose; dry to moist.
GRAVEL with Silt and Sand: reddish brown (5 YR 4/4); 90%
gravel, poorly graded, 5% sand, 5% silt and clay; loose.
GRAVEL: light gray (5 YR 7/1); powdery gravel; loose; dry.
GRAVEL with Sand: reddish brown (5 YR 5/4); 90% gravel,
10% sand, poorly graded, loose; dry to moist.
Silty CLAY with Gravel: reddish brown (5 YR 5/4); 90% silty
clay; 10% sand and gravel; stiff.
GRAVEL with Sand and Silt: white (2.5 YR 8/1); 90% gravel,
poorly graded, up to 2 inches in diameter; 5% sand; 5% silt;
loose; dry.
Silty GRAVEL with Sand: white (5 YR 8/1); 70% silt; 30%
gravel, poorly graded, up to 4 inches in diameter; trace sand;
loose, powdery; dry.
GRAVEL with Sand and Silt: white (5 YR 8/1); 60% gravel,
poorly graded; 20% silt; 10% sand; loose; dry.
Clayey SILT with Sand: 5 YR 5/5; Clayey Silt (99%), Sand
(<1%); Moist .
GRAVEL with Sand and Silt: 80% gravel, poorly graded; 10%
sand; 10% silt; loose; moist to dry.
GRAVEL with Silt: 80% gravel; 20% silt; loose.
Silty CLAY with Sand: dark reddish brown (2.5 YR 3/4); 99%
clayey silt; 1% sand; moist.
Silty GRAVEL: dark reddish brown (2.5 YR 3/4); poorly
graded; loose to compact; moist.
Hydrated
bentonite pellets
(14 to 135 ft
bgs).
4.1
2.5
4.2
3
4.4
5.3
48
26.3
13.3
19.2
16.6
12.1
14.3
19.4
46.1
12.4
66.2
37.2
15.2
5.4
17.4
30.9
43.1
30
9.9
5.8
17.3
4.4
13.8
47.6
44.4
58.3
39
GP
GM
GP
GM
CL
GP
CL
GP
GP
GP
GP
CL
GP
ML
SM
ML
GP
GP
CL
GM
MW31-
SB060920-
82
MW31-
SB060920-
94
MW31-
SB060920-
112
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 3 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
116.0
116.5
120.0
122.0
122.5
125.0
126.5
127.5
129.5
130.0
132.0
134.0
137.5
138.0
140.5
145.5
147.0
150.0
151.0
152.0
154.0
155.0
Soft CLAY: brown (7.5 YR 5/4); High Plasticity, Cohesive;
Moist.
Silty SAND: reddish brown (5 YR 4/4); 50% Sand, 50% Silt -
6'' layer.
Silty CLAY: reddish brown (5 YR 4/4); 95% Silty Clay, low
plasticity; 5% Gravel; trace sand; can't roll or form;
non-cohesive; soft and loose; moist.
GRAVEL with Sand and Silt: pinkish gray (7.5 YR 6/2); 80%
Gravel, coarse, poorly graded; 10% Sand; 10% Silt; Dry.
Silty CLAY with Gravel: reddish brown (5 YR 5/4); 6 inch of
very stiff.
GRAVEL: white (7.5 YR 8/1); 50% Gravel; powdery gravel,
loose; dry.
GRAVEL with Silt and Sand: brown (7.5 YR 5/3); 80% Gravel,
coarse, poorly graded; 10% Sand; 10% Silt; Dry.
Silty GRAVEL: brown (7.5 YR 5/3); 60% Gravel, coarse,
poorly graded; 30% Silt; 10% Sand; Medium Dense; Dry.
GRAVEL: white (7.5 YR 8/1); powdery gravel, poorly graded,
coarse; very hard drilling.
Silty CLAY with Gravel: poorly graded, coarse, very hard
drilling; moist.
Silty GRAVEL: light brown (7.5 YR 6/3); 70% Gravel; 30%
Silt; loose, may have been wet but dried due to heat; moist to
wet.
GRAVEL with Silty Clay: 80% Gravel, 20% Silty Clay, same
sand, poorly graded, may have been wet.
GRAVEL with some Silt: pinkish white (7.5 YR 8/2); coarse,
poorly graded; very loose; dry.
Silty GRAVEL: reddish brown (2.5 YR 5/4); 6 inches of hard
silty gravel, coarse, loose.
Silty CLAY: yellowish red (5 YR 4/6); 98% silt clay, 2% gravel;
stiff, low plasticity; moist to dry.
Silty CLAY with Gravel: yellowish red (5 YR 4/6); 60% silty
clay; 40% gravel; loose, easy to break up; moist to dry.
GRAVEL with Silt: brown (7.5 YR 4/4); 60% gravel; 40% silt;
loose, about 1 inch wet, then back to very stiff; wet.
Silty CLAY: strong brown (7.5 YR 4/6); Very Stiff, Low
Plasticity, less than 1% gravel.
CLAY with Silt and Sand: yellowish red (5 YR 4/6); 95% clay,
5% sand/silt (<5%); soft, medium plasticity; moist.
Silty CLAY with Gravel: 90% silty clay; 10% gravel; compact.
Silty Clayey GRAVEL: reddish brown (5 YR 5/4).
GRAVEL with Sand and Silt: yellowish red (5 YR 4/6);90%
Hydrated
bentonite pellets
(14 to 135 ft
bgs).
#10/20 sand
filter pack (135
to 151 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (138
to 148 ft bgs).
2.5
10.3
3.3
7.7
12.3
18.9
15.1
5.2
11.9
11.8
4.4
16.6
4
17.4
14.2
31.8
9.4
16
0.4
6
15.5
8.9
20.3
22.4
14.2
6.9
2.7
2.5
2.3
1.8
19
13
5.1
CH
SM
CL
GP
CL
GP
GP
GP
GM
GP
CL
GM
GP
GP
GM
CL
CL
GM
CL
CL
CL
GM
GP
MW31-
SB061020-
133
MW31-
GW061020-
138
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 4 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
159.0
160.0
165.0
170.0
172.0
176.0
177.0
180.0
182.5
186.0
190.0
gravel; 5% sand; 5% silt; loose; coarse; wet.
Silty Clay with GRAVEL: soft, loose to medium compact; dry.
Silty CLAY with Gravel: yellowish red (5 YR 4/6); hard; dry.
Silty Sandy GRAVEL: brown (7.5 YR 4/4); loose, some 1 inch
gravel, trace 4 inch gravel; wet then moist then dry.
Clay with GRAVEL: 99% stiff clay; 1% gravel; can be rolled;
moist.
GRAVEL with Silt and Sand: yellowish red (5 YR 5/6); 60%
gravel; 20% sand; 20% silt; loose, wet.
CLAY: yellowish red (5 YR 4/6); stiff clay; can be rolled;
medium plasticity; moist.
CLAY: yellowish red (5 YR 5/6); stiff clay, low plasticity.
Silty CLAY with Gravel; brown (7.5 YR 5/4); 50% silty clay;
50% gravel; moist.
Silty CLAY with Gravel: brown (7.5 YR 5/3); 70% silty clay;
30% gravel; trace sand; soft, loose; moist.
Silty Clayey SAND with Gravel: strong brown (7.5 YR 4/6);
coarse, low plasticity, loose; hard rock - 2 inch thick layer;
moist.
GRAVEL with Sand and Silt: storng brown (7.5 YR 4/6);
coarse, poorly graded, loose, wet.
Gravelly CLAY with Sand: light brown (7.5 YR 6/3); 60% clay;
40% gravel; trace sand; soft, broken up easily, wet.
Hydrated
bentonite pellet
seal (151 to 187
ft bgs).
#10/20 sand
filter pack (187
to 202 ft bgs).
6
6.8
15.5
31.4
1.5
1.6
2.3
1.4
1.3
1
0.8
0.4
8.7
2.2
16.3
8.6
7.1
32.1
49.9
29.8
7
14
17.8
17.3
17.1
CL
CL
GM
CL
GM
CL
CL
CL
CL
SM
GP
CL
MW31-
SB061020-
159
MW31-
SB061020-
176
MW31-
GW061120-
190
MW31-
SB061120-
190
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 5 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
197.0
199.0
200.0
204.0
206.0
210.0
215.0
222.0
230.0
233.0
234.0
Gravelly CLAY with Sand: light brown (7.5 YR 6/4); same as
above except larger gravel - 2 to 4 inches in diameter; wet.
Silty CLAY: yellowish red (5 YR 4/6); very stiff, low plasticity,
can't roll/form.
Silty CLAY: brown (7.5 YR 4/4); stiff, medium plasticity;
moist.
Silty CLAY with Gravel and Sand: 60% Gravel and Sand; 40%
Silty Clay; Loose; Wet.
Silty CLAY: brown (7.5 YR 4/4); Stiff; Moist.
Silty CLAY: brown (7.5 YR 4/4); Medium Plasticity; Moist.
Silty CLAY: strong brown (7.5 YR 5/6); Trace Sand,
Cohesive, Medium to Stiff, High Plasticity; Moist to Dry.
Gravelly SILT: brown (7.5 YR 5/3); same as above, becomes
wet.
Silty GRAVEL: brown (7.5 YR 5/3); gravel up to 2 inches in
diameter; some sand; loose; wet.
Silty CLAY: brown (7.5 YR 5/3); silty clay, medium plasticity.
Silty Clayey GRAVEL: light brown (7.5 YR 6/3); 60% gravel,
1-inch SCH 80
0.020-slot
screen ZIST
nested well (190
to 200 ft bgs).
Hydrated
bentonite pellet
seal (202 to 225
ft bgs).
#10/20 sand
filter pack (225
to 240 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (228
to 238 ft bgs).
8.4
13.1
3.1
19.2
8.1
10.9
15.2
15.1
5.4
10.1
1.6
0.8
1.1
1.6
1.5
1.2
1.4
1.6
31
10.6
12
56
7.6
67.6
3.1
1.3
1.4
2
1.8
CL
CL
CL
GC
CL
CL
CH
ML
GM
CL
MW31-
SB061120-
215
MW31-
GW061120-
230
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 6 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
236.0
240.0
248.0
250.0
254.0
255.0
261.0
263.0
264.0
269.0
270.0
272.0
274.0
40% silty clayey; moist to wet.
Silty CLAY with Gravel: brown (7.5 YR 5/3); moderately stiff,
medium plasticity; moist.
Silty CLAY with Sand: strong brown (7.5 YR 5/6); stiff to
medium stiff, low plasticity; moist to dry.
Silty CLAY with Sand: strong brown (7.5 YR 5/6); same as
above, except dry.
Silty CLAY with Gravel: brown (7.5 YR 4/4); compact, low
plasticity, 2 inch thick rock; moist to dry.
Silty CLAY with Gravel: brown (7.5 YR 4/4); same as above
except more loose and dry. Core is very hot, hard drilling; dry.
Silty CLAY: brown (7.5 YR 5/3); appears wet on outside;
sample fell down the casing, inside of core dry, low plasticity;
dry.
CLAY with Gravel: 70% clay; 30% gravel; medium stiff; moist
to dry.
Silty CLAY with Gravel: light brown (7.5 YR 6/3); 50% silty
clay; 50% gravel; moist.
Silty CLAY with Gravel: brown (7.5 YR 4/4); 70% silty clay,
low plasticity; 30% gravel; medium stiff; moist.
Clayey GRAVEL: brown (7.5 YR 4/4); 60% gravel; 40% clay;
moist to dry.
Clayey GRAVEL: brown (7.5 YR 4/4); 60% gravel, coarse;
40% clayl loose; moist to wet.
Silty CLAY with Gravel: 95% silty clay, medium plasticity; 5%
gravel; moist.
Silty CLAY with Gravel: 98% silt clay, medium plasticity; 2%
Hydrated
bentonite pellet
backfill (240 to
278 ft bgs).
1.4
4.4
1
1.5
2.5
3.5
3.2
5.1
2.2
2.7
2.2
7.3
90.4
19.2
15.2
9.6
3
0.2
0.3
0.1
10.6
16.4
18.6
25.2
1.7
12.3
4.1
19.7
9.6
9.1
4.7
GM
CL
CL
CL
CL
CL
CL
CL
CL
CL
GC
GC
CL
MW31-
SB061220-
236
MW31-
SB061220-
252
MW31-
SB061220-
270
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 7 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
276.0
282.0
283.0
286.5
289.0
290.0
gravel; medium stiff.
Silty CLAY with Gravel: yellowish red (5 YR 4/6); same as
above except lower plasticity; moist to dry.
Clayey GRAVEL: brown (7.5 YR 4/4); soft; moist to wet.
Silty CLAY with Sand: brown (7.5 YR 4/4); Less than 1%
sand, stiff to moderately stiff, low plasticity; moist.
GRAVEL: pinkish gray (7.5 YR 7/2); very hard, cemented;
dry.
Gravel is loose.
Silty CLAY with Sand: brown (7.5 YR 5/3); 90% silty clay, low
plasticity; 10% sand; dry.
Native soil.
5.7
6.3
4.4
4.4
15.6
9
10.2
7.3
12.4
9.3
22.8
CL
CL
GC
CL
GW
CLMW31-
SB061220-
289
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/9/2020 - 6/12/2020
280
285
290
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-31
PAGE 8 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
10.0
15.0
20.0
22.0
25.0
Hydrovac to 10 ft bgs. Silty GRAVEL.
GRAVEL with Sand and Clay: reddish brown (5 YR 4/4); 50%
gravel and cobbles, poorly graded, mostly coarse, angular to
subrounded; 40% sand, poorly graded, mostly fine to medium,
subangular to subrounded; 10% clay, medium plasticity;
moist. Gravel and cobbles within clay.
Same as above except 30% sand, 20% clay.
SAND with Gravel and Clay: reddish brown (5 YR 4/4); 60%
sand, poorly graded, mostly fine to medium subangular to
subrounded; 30% gravel, well graded, fine to coarse, cobbles;
10% clay matrix. Less lithified than above.
Same as above except less lithified.
SAND with Gravel and Clay: reddish brown (5 YR 4/4); 50%
sand, poorly graded, mostly fine to medium, subangular to
subrounded; 40% gravel and cobbles, poorly graded, coarse,
subangular to subrounded, up to 6 inches in diameter; 10%
clay; moist.
Clayey SAND and Gravel: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to medium, subangular to
subrounded; 20% gravel and cobbles, well graded, fine to
coarse, subangular to subrounded, up to 3 inches in diameter;
20% clay - matrix, medium plasticity; slightly lithified; moist.
Same as above but sand is well graded, fine to coarse, moist.
0.082
0.67
0.37
0.094
0.223
0.12
0.134
Vault
SLC Approved
Concrete 0 to 10
ft bgs.
Bentonite Grout
(10 to 17 ft bgs).
Hydrated
bentonite pellets
(17 to 18 ft bgs).
#10/20 sand
filter pack (18 to
22 ft bgs) with
6-inch stainless
steel mesh vapor
probe at 20 ft
bgs.
0.3
7.1
3.1
1.3
6.2
15.3
7.8
GM
GP
SP
SP
SC
MW32-
SB062220-
14
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Whitney Treadway, Kimberly Myers
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4566.22
See Table 5
Groundwater was encountered at approximately 95 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
6/22/2020 - 6/28/2020
5
10
15
20
25
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 1 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
28.0
30.0
35.5
37.0
40.0
42.0
44.5
46.0
48.0
50.0
51.0
53.0
Clayey SAND and GRAVEL: reddish brown (5 YR 4/4); 50%
sand, poorly graded, fine to coarse, mostly fine to medium,
subangular to subrounded; 30% gravel and cobbles, well
graded, fine to coarse, angular to subrounded, up to 5 inches;
20% clay, medium plasticity; slightly lithified, gravel content is
light gray material; moist.
Same as above except 40% sand, 40% gravel, and 20% clay.
Large Cobbles, 7 inches in diameter. Less lithified than 25 to
27 ft bgs.
Clayey SAND with Gravel: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to medium, subangular to
subrounded; 20% gravel, well graded, fine to coarse, angular
to subrounded, lithified fragments of gravel; 20% clay,
medium plasticity; moist.
Gravel includes light gray fragments.
CLAY with Gravel: reddish brown (5 YR 4/4); 70% clay,
medium to high plasticity; 30% gravel, well graded, fine to
coarse, subangular to subrounded, up to 5 inches; lithified.
Clayey SAND with gravel: reddish brown (5 YR 4/4); 50%
sand, poorly graded, mostly fine to medium; 30% gravel and
cobbles, well graded, fine to coarse, subangular to
subrounded, up to 4 inches; 20% clay, medium plasticity;
moist.
Same as above except 40% sand, 40% gravel, 20% clay.
CLAY: reddish brown (5 YR 4/4); 80% clay, high plasticity;
20% gravel, poorly graded, fine to coarse, mostly coarse,
subrounded, up to 4 inches; gravel in clay matrix; moist.
SAND with Gravel and Clay: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to medium, subangular to
subrounded; 30% gravel, well graded, fine to coarse, up to 4
inches; 10% clay; moist.
CLAY with Sand: reddish brown (5 YR 4/4).
CLAY with Sand: reddish brown (5 YR 4/4); 70% clay, 20%
sand, 10% gravel. Near 48 ft bgs, gravel is fine to coarse,
mostly coarse, subangular to subrounded, up to 4 inches, in
clay matrix. Clay is slightly mottled with strings of light tan
material like above.
Sandy CLAY: reddish brown (5 YR 4/4); 60% clay, high
plasticity, matrix; 30% sand, poorly graded, fine, subangular to
subrounded; 10% gravel, well graded, fine to coarse; slightly
lithified. Cool, moist, trace pockets of wetness near 48 ft bgs.
Clayey SAND with Gravel: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to medium, subangular to
subrounded; 20% gravel, well graded, fine coarse, subangular
to subrounded, up to 4 inches; 20% clay, medium plasticity,
clay matrix; slightly lithified.
CLAY with Sand and Gravel: pink (7.5 YR 7/3); 60% clay,
high plasticity; 20% gravel and cobbles, well graded, fine to
0.098
0.133
0.014
0.432
0.47
0.492
0.323
0.119
0.107
0.199
0.1
0.36
0.344
0.326
0.174
0.327
Hydrated
bentonite pellets
(22 to 111 ft
bgs).
6.7
37.3
11.2
56.1
32.1
93.5
12
4.9
0.5
16
7.6
4.6
6.3
2.8
8.4
7.2
SC
GC
SC
CL
SC
CH
SP
CH
CH
CH
SC
CH
MW32-
SB062220-
27
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
30
35
40
45
50
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 2 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
54.0
56.0
58.0
60.0
62.5
64.0
66.5
68.0
69.0
70.0
74.0
77.0
80.0
82.0
coarse, up to 7 inches; 20% sand, well graded, fine to coarse,
subangular to subrounded; moist.
Clay is mottled with red and less gravel at 52.5 ft bgs.
Sandy CLAY: reddish brown (5 YR 4/4); 55% clay, medium
plasticity; 45% sand, poorly graded, fine to medium,
subangular to subrounded; trace gravel.
Sandy CLAY with Gravel: reddish brown (5 YR 4/4); 40%
clay, medium plasticity, matrix; 20% sand, poorly graded, fine
to medium, subangular to subrounded; 20% gravel, well
graded, fine to coarse, subangular to subrounded; slightly
lithified; moist.
CLAY with Sand and Gravel: reddish brown (5 YR 4/4); 70%
clay, high plasticity; 20% sand, poorly graded, fine to medium,
subangular to subrounded; 10% gravel, well graded, fine to
coarse, subangular to subrounded; moist.
SAND with Gravel and Clay: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to coarse, mostly fine to medium,
subangular to subrounded; 30% gravel, well graded, fine to
coarse, subrounded, up to 3 inches; 10% clay; trace silt;
moist.
Sandy CLAY: brown (7.5 YR 4/3); 70% clay, medium to high
plasticity; 30% sand, poorly graded, fine, subangular to
subrounded; trace coarse sand and fine gravel; moist.
Sandy CLAY: reddish brown (5 YR 5/4) and pink (5 YR 7/4);
clay is hard, less sand (15%); mottled.
CLAY with Sand and Gravel: reddish brown (5 YR 5/4); 60%
clay, high plasticity; 25% sand, poorly graded, mostly fine to
medium, subangular to subrounded; 15% gravel, poorly
graded, mostly coarse, subangular to subrounded, up to 2
inches; hard. More lithified at 64 and 66.5 ft bgs.
CLAY with Sand and Gravel: 60% clay, medium to high
plasticity; 25% sand, poorly graded, fine to coarse, mostly fine
to medium, subangular to subrounded; 15% gravel, poorly
graded, fine to coarse, mostly fine; subangular to subrounded,
up to 2 inches. Lithified clay matrix around sand and gravel.
Clayey SAND with Gravel: reddish brown (5 YR 4/4); 60%
sand, poorly graded, fine to medium, subangular to
subrounded; 20% clay; 20% gravel, well graded, fine to
coarse, subangular to subrounded, up to 4 inches; moist.
Sandy CLAY: reddish brown (5 YR 4/4); 60% clay; 35% sand;
5% gravel (5%); soft.
Sandy CLAY: reddish brown (5 YR 5/4); 70% clay, medium to
high plasticity; 30% sand, poorly graded, mostly fine, trace
medium and coarse; trace fine gravel; soft; moist.
Sandy CLAY: reddish brown (5 YR 5/4); 60% clay, medium to
high plasticity; 30% sand, poorly graded, fine, trace medium
and coarse, subangular to subrounded; 10% gravel, poorly
graded, fine to coarse, mostly fine, subangular to subrounded,
up to 5 inches; trace large cobbles; soft to stiff; moist with wet
pockets. Lenses of green and grayish blue crushed rock
segments.
Sandy CLAY: ; 70% clay; 30% sand, fine, trace medium and
coarse; sticky and soft; moist.
CLAY with Sand: reddish brown (5 YR 4/4); 80% clay, high
plasticity; 20% sand, poorly graded, fine, subangular to
subrounded; trace gravel, coarse; soft; moist.
0.142
0.191
1.12
0.704
0.444
0.173
0.107
0.35
0.36
0.41
0.361
0.632
0.761
0.761
Hydrated
bentonite pellets
(22 to 111 ft
bgs).
Hydrated
bentonite pellets
(22 to 111 ft
bgs).
17.5
6.8
5.5
0.3
11.9
8.8
1.4
0.6
6.9
4.9
6
9.6
1.1
1.8
CL
CL
CH
SP
CH
CH
CH
CH
SC
CL
CH
CH
CH
CH
MW32-
SB062220-
55
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
55
60
65
70
75
80
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 3 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
83.5
84.1
89.0
90.0
91.7
94.6
96.0
100.0
100.5
102.0
104.0
106.0
108.0
110.0
110.5
CLAY with Sand: 70% clay; 30% sand. Sandy wet lens with 5
inch cobble.
Large Cobble, diameter of core barrel and approximately 7
inches long.
GRAVEL with Sand: reddish brown (5 YR 4/4); 50% gravel
and cobbles, well graded, fine to coarse, subangular to
subrounded, up to 4 inches; 30% sand, poorly graded, mostly
fine to medium, subangular to subrounded; 20% clay matrix;
moist.
Same as above except 40% gravel, up to 6 inches; 20% sand;
20% clay.
Same as above - wet lens 88 to 88.5 ft bgs (gravel, cobbles,
sand with clay matrix).
Sandy CLAY with Gravel: reddish brown (5 YR 4/4); 60%
clay, medium plasticity; 30% sand, poorly graded, mostly fine
to coarse, some coarse, subangular to subrounded; 10%
gravel, poorly graded, fine to coarse, mostly fine, angular to
subrounded; hard; moist.
Sandy GRAVEL with Silt: reddish brown (5 YR 4/4); 50%
gravel, fine to coarse, subangular to subrounded; 35% sand,
fine to coarse; 35% silt; loose; medium dense; wet.
Clayey SILT: trace gravel, cohesive, stiff, wet.
Silty GRAVEL: reddish brown (5 YR 4/4); fine to coarse
gravel, 6 inch cobble, cohesive, dense, wet.
Sandy GRAVEL with Silt: reddish brown (5 YR 4/4); 60%
gravel, 4 to 6 inch cobbles, subangular to subrounded; 30%
sand; 10% silt; wet. Core was cool.
Clayey SAND and GRAVEL: reddish brown (5 YR 4/4).
CLAY with Sand and Gravel: brown (7.5 YR 4/4); 70% clay,
medium to high plasticity; 25% sand, poorly graded, fine,
subangular to subrounded; 5% gravel, poorly graded, coarse,
subangular to subrounded; stiff; wet.
CLAY: brown (7.5 YR 4/4); 90% clay, high plasticity; 10%
sand, poorly graded, very fine to fine, subangular to
subrounded; soft; moist.
CLAY: brown (7.5 YR 4/4); 100% clay, high plasticity; trace
fine sand; stiff; moist.
CLAY: brown (7.5 YR 4/4); 80% clay, high plasticity; trace
fine sand; 20% silt; stiff; moist.
CLAY: brown (7.5 YR 4/4); 70% clay, high plasticity; 20% silt;
10% sand, fine; stiff; wet.
Clayey SAND and GRAVEL: wet.
0.466
0.406
0.122
0.191
0.04
0.015
0.264
0.18
0.111
0.184
0.13
0.161
1.27
1.18
1.32
Hydrated
bentonite pellets
(22 to 111 ft
bgs).
4.9
17
4.1
2.2
8.8
1.6
1.4
3.9
1.1
2.6
9.7
10
11.2
12.1
10
CH
GW
CL
GW
ML
GM
GP
GC
CH
CH
CH
CH
CH
SC
MW32-
SB0622320-
84
MW32-
SB062320-
99
MW32-
GW062320-
100
MW32-
SB062420-
105
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
85
90
95
100
105
110
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 4 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
115.0
119.0
120.0
124.5
126.5
127.5
131.0
135.5
138.4
Sandy CLAY: brown (7.5 YR 4/4); 70% clay, high plasticity;
30% sand, poorly graded, fine to coarse, mostly fine,
subangular to subrounded; stiff; moist with wet lenses. Large
Cobble at 112.5 ft bgs with black staining (looks like charcoal)
and reddish iron oxide staining.
Same as above, including lenses of wet sand and gravel with
in clay matrix; 80% clay, 10% sand, and 10% gravel.
Clayey GRAVEL with Sand: brown (7.5 YR 4/4); 50% gravel,
well graded, fine to coarse, subangular to subrounded, up to 5
inches; 30% sand, well graded, fine to coarse, subangular to
subrounded; 20% clay; wet.
Sandy CLAY: brown (7.5 YR 4/4); 60% clay, high plasticity;
30% sand, poorly graded, very fine to fine, subangular to
subrounded; 10% silt; stiff; moist.
Sandy GRAVEL with Clay: brown (7.5 YR 4/4); 50% gravel,
well graded, subangular to subrounded, up to 3 inches; 40%
sand, well graded, fine to coarse, subangular to subrounded;
10% clay, low plasticity; wet.
CLAY: 95% clay, medium plasticity; 5% sand, very fine; trace
gravel; stiff; moist.
SILT: 95% silt; 5% sand, very fine; very stiff; dry to moist.
Sandy CLAY: 80% clay, medium to high plasticity; 20% sand,
poorly graded, very fine to fine, subangular to subrounded.
Same as above except 70% clay, 20% sand, 10% gravel,
coarse, up to 3' inches, subangular to subrounded.
Clayey SAND with Gravel: 70% sand, well graded, fine to
coarse, subangular to subrounded; 15% clay; 15% gravel,
well graded, up to 3 inches; moist to wet.
Same as above except 50% sand, 35% clay, low plasticity,
and 15% gravel, up to 3 inches; medium dense; moist to wet.
Sandy CLAY: yellowish red (5 YR 4/6); 60% clay; 40% sand,
trace gravel; soft; moist.
Sandy CLAY with Gravel: yellowish red 5 YR 4/6); 50% clay;
35% sand; 15% gravel, coarse, angular to subrounded, up to
0.886
0.313
0.162
1.58
0.134
0.387
1.22
0.333
0.473
0.361
0.234
0.276
0.228
#10/20 sand
filter pack (111
to 125.5 ft bgs).
2-inch SCH 80
0.020-slot
screen nested
well (114 to 124
ft bgs).
#10/20 sand
filter pack (111
to 125.5 ft bgs).
Hydrated
bentonite pellet
seal (125.5 to
167 ft bgs).
8.8
11
6.4
8.5
3.8
4.6
1.2
6.3
1.2
3.7
2.9
4.1
3.2
CH
GC
CH
GW
CL
ML
CH
SW
CL
MW32-
GW062420-
120
MW32-
SB062420-
127
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
115
120
125
130
135
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 5 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
140.0
143.0
145.3
146.4
149.0
150.0
153.5
154.0
155.5
159.0
160.0
162.0
163.0
4 inches; medium dense to stiff; moist.
Gravelly SAND with Clay: reddish brown (5 YR 4/3); 55%
sand, well graded, fine to coarse, subangular to subrounded;
25% clay, low plasticity; 20% gravel, well graded, fine to
coarse, up to 2 inches; loose; wet.
Sandy CLAY: brown (7.5 YR 4/4); 55% clay, low plasticity;
45% sand, poorly graded, very fine to fine; trace fine gravel,
subangular to subrounded; soft becomes medium dense
around 144.6 ft bgs; moist to wet.
Gravelly SAND with Clay: 75% sand, well graded, fine to
coarse; 15% gravel, fine to medium, subangular to
subrounded; 10% clay, low plasticity; wet.
Sandy CLAY with Gravel: brown (7.5 YR 4/4); 65% clay,
medium plasticity; 25% sand, poorly graded,trace coarse, very
fine to fine; 10% gravel, fine to medium, subangular to
subrounded, up to 0.5 inch; medium dense; moist.
Become stiff, 85% clay, 15% sand, trace gravel.
SILT with Sand: 80% silt; 15% sand, poorly graded, very fine
to fine; 5% gravel; moist to wet. Softer near 150 ft bgs, with
more sand (up to 40%).
CLAY with Sand: yellowish red (5 YR 4/6);90% clay; 5%
gravel, fine, 5% sand, very fine; soft to medium soft.
Silty CLAY: stiff.
Sandy CLAY with Gravel: 50% clay, low to medium plasticity;
30% sand, well graded, fine to coarse, subangular to
subrounded; 20% gravel, well graded, up to 2 inches,
subangular to subrounded.
Gravelly CLAY: 50% clay; 35% gravel, subangular to
subrounded, up to 4 inches; 15% sand, well graded; medium
dense; wet.
Becomes moist and stiff.
Gravelly SILT: dry to moist.
Silty SAND with Gravel: 50% sand, 25% silt, 25% gravel; wet.
Gravelly CLAY 60% clay, 25% gravel, 15% sand, well graded;
clay increases for 1 ft.
Gravelly Lean CLAY: ; 60% clay, 30% gravel, 10% sand, well
graded.
0.285
0.24
0.369
0.408
0.396
0.623
0.165
0.145
0.356
0.139
0.21
2.02
0.111
0.309
0.004
Hydrated
bentonite pellet
seal (125.5 to
167 ft bgs).
3.4
2
7.5
2.9
5.6
5.5
3.8
3.6
7.1
8.1
6.1
6.8
5.8
9.2
7.8
CL
SW
CL
SW
CL
ML
CH
CH
CL
CL
ML
SM
CL
CL
MW32-
SB062420-
142
MW32-
SB062520-
165
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
140
145
150
155
160
165
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 6 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
169.0
169.5
170.0
175.0
182.0
185.0
185.3
186.0
188.0
190.0
Gravelly SILT: 60 to 65% silt, 30% gravel, 5 to 10% sand.
Sandy CLAY: 80% clay, 20% sand, very fine.
Silty SAND with Gravel: 50% sand, 25% silt, 25% gravel.
GRAVEL with Sand and Silt: 40% gravel, well graded, fine to
coarse, subangular to subrounded, up to 3 inches; 30% sand,
well graded, 30% silt; wet.
Same as above with gravel up to 4 inches.
Sandy CLAY: 70% clay, low plasticity; 25% sand, poorly
graded, very fine to fine; 5% gravel, fine to medium; wet.
3 inch solid rock.
Gravelly CLAY: ; 65% clay, medium plasticity; 30% gravel; 5%
sand, very fine to fine.
Gravelly SILT: 70% silt; 25% gravel, angular to subrounded,
up to 3 inches; 5% sand, very fine to fine; dry to moist. 1 inch
thick hard layers of siltstone.
No Recovery.
Lean CLAY with Gravel: 85% clay; 10% gravel, mostly fine,
trace cobbles up to 5 inches; 5% sand, very fine to fine; very
stiff.
0.064
0.113
0.144
0.598
0.195
0.37
0.054
0.341
0.85
0.042
0.04
0.036
#10/20 sand
filter pack (167
to 183 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (170
to 180 ft bgs).
Hydrated
bentonite pellet
seal (183 to 257
ft bgs).
9.1
1.5
3.8
0.1
2.8
6.7
3.5
35.5
49
6
5.2
9.7
ML
CL
SM
GM
CL
CL
ML
CL
MW32-
GW062520-
175
MW32-
SB062520-
186
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 7 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
197.5
200.0
200.5
202.0
203.5
205.0
206.5
209.0
209.5
210.0
211.5
211.8
217.0
219.0
220.0
Gravelly SILT: 55% silt; 30% gravel, angular to subrounded,
up to 2 inches; 15% sand, well graded, fine to coarse,
subangular to subrounded; brittle; stiff to hard.
Sandy CLAY: 6 inches of sand clay.
SAND with Clay and Gravel: 50% sand, well graded, fine to
coarse, subangular to subrounded; 30% gravel, well graded,
up to 4 inches; 20% clay, low plasticity; wet.
CLAY: 60% clay; 35% silt; 5% sand, very fine; trace gravel,
fine; moist.
Gravelly CLAY: 40% clay; 30% gravel, poorly graded, coarse,
0.75 to 2 inches; 20% silt; 10% sand, fine; moist.
Sandy CLAY with Gravel: 50% clay; 30% gravel, well graded,
angular to subrounded; 20% sand, well graded; moist.
CLAY: 60% clay; 30% silt; 10% gravel, fine, subangular to
subrounded, up to 0.5 inch.
Gravelly SILT: 55% silt, 30% gravel, 15% sand; brittle and
soft.
Clayey SAND with Gravel: 50% sand, 30% gravel, 20% clay.
Lean CLAY: 90% clay, low plasticity; 5% gravel, fine; 5%
sand, poorly graded, medium to coarse; stiff.
Clayey SAND and GRAVEL: 4 inch clayey sand and gravel
layer.
Lean CLAY: ; 90% clay, low plasticity; 5% gravel, fine; 5%
sand, poorly graded, medium to coarse; stiff.
Trace coarse gravel.
Clay becomes stiffer, seems to have some silt, plasticity
content becomes lower. Becomes non-plastic gradually.
Sandy SILT: 70% silt, 30% sand, poorly graded, very fine.
Sandy CLAY with Gravel.
CLAY with Sand: 65% clay; 30% sand, poorly graded, very
fine to fine; 5% gravel, fine, subangular to subrounded, up to
0.5 inches, trace coarse up to 2 inches.
0.05
0.182
0.34
1.4
1.2
0.795
0.851
0.301
0.231
0.151
0.14
0.26
0.116
Hydrated
bentonite pellet
seal (183 to 257
ft bgs).
8.8
3.4
9.1
4.3
6.5
4.5
7.3
12.4
8.1
8.8
7.9
1.2
1.1
ML
CL
SW
CL
CL
CL
CL
ML
SC
CL
SC
CL
ML
CL
CL
MW32-
SB062520-
203
MW32-
GW062620-
210
MW32-
SB062620-
223
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
200
205
210
215
220
225
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 8 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
226.0
230.0
235.0
237.0
239.5
240.0
244.0
245.0
247.0
248.5
250.0
Same as above except gravel increases to 15%, fine to
coarse, mostly fine, up to 2 inches.
Gravelly SILT: 55% silt; 35% gravel, well graded, fine to
coarse, up to 3 inches; 10% sand.
Sandy CLAY: 70% clay, low plasticity; 25% sand, poorly
graded, very fine to fine, subangular to subrounded; 5%
gravel, fine, trace coarse, up to 1 inch, subangular to
subrounded; stiff; moist. Low to no plasticity at 233 ft bgs.
Cobbles at 233.5 ft bgs.
Gravelly SILT: 55% silt; 30% gravel, well graded, up to 4 inch
cobbles; 15% sand, well graded, fine to coarse; very stiff to
hard; brittle; dry to moist.
Sandy SILT: yellowish red (5 YR 4/6); 70% silt, non-plastic;
30% sand, poorly graded, very fine to fine; stiff; moist.
Gravelly SILT: 55% silt; 30% gravel, well graded, up to 4 inch
cobbles; 15% sand, well graded, fine to coarse; very stiff to
hard; brittle; dry to moist.
Sandy CLAY: 70% clay, low plasticity; 30% sand, very fine to
fine; soft; moist. Becomes medium dense/medium stiff. 10%
gravel at 241 to 241.5 ft bgs.
SILT: 95% silt, low to non-plastic; 5% sand, fine, trace coarse.
SILT: 90% silt, low to non-plastic; 5% gravel, fine, subangular
to subrounded; 5% sand, fine trace coarse; stiff; moist.
Gravelly CLAY: 60% clay, low plasticity; 35% gravel, well
graded, up to 2 inches; 5% sand, very fine to fine, trace
coarse; medium stiff; moist.
Sandy SILT: 80% silt; 20% sand, very fine to fine; trace
gravel, fine, subangular to subrounded, up to 0.25 inch; stiff;
moist.
CLAY with Sand: 90% clay; 10% sand, very fine to fine;
medium stiff; moist.
0.175
0.106
0.073
0.375
0.553
0.329
0.356
0.31
0.401
0.18
0.316
0.344
0.241
0.448
0.265
Hydrated
bentonite pellet
seal (183 to 257
ft bgs).
0.5
0.7
2.9
3.1
4.8
7.8
2.9
0.5
1.3
0.5
0.4
0.5
0.9
1.4
1.7
ML
CL
ML
ML
ML
CL
ML
ML
CL
ML
CL
MW32-
SB062620-
250
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
230
235
240
245
250
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 9 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
254.0
258.0
260.0
267.0
267.5
269.0
272.0
CLAY with Gravel and Sand: 50% clay; 35% gravel, well
graded, subangular to subrounded; 15% sand, well graded.
Dry to moist at 256 ft bgs; moist.
Gravelly CLAY: 60% clay, low plasticity; 25% gravel, well
graded, subangular to subrounded, up to 2 inches, trace 4
inch cobbles;15% sand, well graded; dry to moist.
Gravelly CLAY: 60% clay, low plasticity; 30% gravel, medium
to coarse, subangular to subrounded, with cobbles up to 4
inches; 10% sand, well graded, fine to coarse; stiff; moist.
Gravelly SILT with Sand: dry to moist.
Gravelly CLAY: 60% clay, low plasticity; 25% grave, well
graded, fine to coarse, cobbles up to 3 inches; 15% sand, well
graded. Silt from 268.5 to 264 ft bgs. Medium stiff; moist to
wet.
Gravelly SILT and CLAY: Gravelly Clay is 45% soft clay, 40%
gravel, up to 4 inches, 15% sand. Gravelly Silt is 60% silt,
non-plastic, 25% gravel, and 15% s, well graded. Brittle, hard,
wet.
End of boring at 272 ft bgs.
0.318
0.315
0.248
0.155
0.103
0.269
0.147
0.425
#10/20 sand
filter pack (257
to 272 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (260
to 270 ft bgs).
2.5
2.2
2.7
11.7
29.4
9.5
17
25.3
CL
CL
CL
ML
CL
ML
MW32-
GW062820-
270
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
6/22/2020 - 6/28/2020
255
260
265
270
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-32
PAGE 10 OF 10
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
8.0
9.0
10.0
17.5
20.0
25.0
26.0
30.0
31.0
33.0
Hydrovac to 8'
Rock/Boulder
Gravelly SILT
Gravelly SILT; 60% silt; 30% fine to coarse elongated 3-4''
gravel; 10% sand; yellowish red (5 YR 4/6); Loose.; Dry .
GRAVEL; 100% fine to coarse gravel; loose; pink (5YR 7/3);
dry.
Gravelly SILT: 50% silt; 50% fine gravel; Loose; reddish
brown (5YR 5/4); dry to moist.
GRAVEL; 100% fine to coarse gravel; loose; pinkish gray
(5YR 7/2); dry.
Silty GRAVEL; 80% fine to coarse gravel; 20% silt; reddish
brown (5YR 5/4) dry to moist.
Silty GRAVEL; 60% fine to coarse gravel; 30% silt; 10% fine
sand; looselight reddish brown (5YR 6/4); dry.
Gravelly SILT; 60% silt40% fine to coarse gravel; loose;
reddish brown (5 YR 4/4); Dry.
Silty GRAVEL; 80% fine to coarse gravel; 20% silt; loose;
reddish yellow (5 YR 6/5); dry
0.086
0.034
0.035
0.034
0.033
0.226
0.075
0.045
0.043
0.07
0.1
0.101
0.118
0.11
Vault with
cement surface
seal
Bentonite Grout
(2 to 14 ft bgs).
Hydrated
bentonite pellets
(14 to 18 ft bgs).
#10/20 sand
filter pack (18 to
22 ft bgs) with
6-inch stainless
steel mesh vapor
probe at 20 ft
bgs.
29.8
6.9
32
27.1
23
16
11
7.1
4.7
18.3
6.9
22.7
16.6
11.4
13.1
14.4
8.4
39.8
2.7
10.5
0.7
ML
ML
GP
ML
GP
GM
GM
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
LOCATION
1-inch SCH 80 0.020-slot
#10/20 sand
REMARKS
4623.61
See Table 5
Groundwater was encountered at approximately 130 feet bgs.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Bentonite Grout
1-inch SCH 80 PVC
7/9/2020 - 7/12/2020
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 1 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
40.0
42.0
43.6
44.0
45.0
47.5
50.0
52.5
56.0
57.0
60.0
64.0
66.0
68.3
70.0
74.5
Silty GRAVEL; 80% fine to coarse gravel; 20% silt; loose; light
reddish brown (5YR 6/3); dry.
GRAVEL with Silt; 85% poorly graded gravel; 15% silt; loose.
light reddish brown (5YR 6/3); dry.
Clayey GRAVEL; cohesive; dry to moist.
Silty CLAY; low plasticity; reddish brown (5 YR 4/4);soft; dry
to moist.
Silty GRAVEL; 60% fine to coarse gravel; 40% silt; loose;
reddish brown (5YR 5/4); dry to moist.
Silty CLAY; low plasticity clay; soft; light reddish brown (5YR
4/6); dry to moist.
CLAY; 90% low plastcicity clay; 10% fine gravel; soft, easily
breaks up; light reddish brown (5YR 4/6); moist.
Silty CLAY; low plasticity; soft; light reddish brown (5YR 4/6);
moist.
Silty GRAVEL; 50% fine to coarse poorly graded gravel; 30%
low plasticity silt; 20% fine to coarse sand; loose; light reddish
brown (5YR 4/6); moist.
Clayey SILT; 95% low plasticity clayey silt; 5% fine gravel:
light reddish brown (5YR 4/6); soft; moist.
Silty GRAVEL; 50% poorly graded gravel; 40% silt; 10% fine
to coarse sand; loose; light reddish brown (5YR 4/6); dry.
Silty CLAY; low plasticity; stiff; reddish brown (5 YR 4/4); dry.
GRAVEL; cemented; white (5YR 8/1); very hard drilling; dry.
Silty GRAVEL; 60% fine to coarse rounded poorly graded
gravel; 40% low plasticity silt; loose; yellowish red (5 YR 4/6);
dry.
Silty GRAVEL; 50% fine to coarse rounded poorly graded
gravel; 50% low plasticity silt; loose; yellowish red (5 YR 4/6);
dry.
0.107
0.85
0.891
0.109
0.034
0.177
0.36
0.255
0.07
19.9
0.145
0.4
0.18
0.05
0.12
0.22
0.134
0.205
0.028
0.034
2.5
2.8
7.9
0.4
3.2
82.3
33.1
18.4
16.1
12.5
16.6
9.6
15.4
2.7
1.8
7.6
13.5
15.4
7.7
16.2
9.6
5.3
4.1
9.1
25.6
16
2
3
20.4
17.2
16.6
4.8
6.4
11.1
10.3
21.1
9.4
6.2
GM
GM
GP
GC
CL
GM
CL
CL
CL
GP
ML
GM
CL
GM
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
40
45
50
55
60
65
70
75
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 2 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
76.0
80.0
82.0
84.0
90.0
94.0
97.0
98.7
99.0
100.0
102.0
115.0
Silty GRAVEL; 50% fine to coarse rounded poorly graded
gravel; 30% low plasticity silt; 10% fine gravel; loose;
yellowish red (5 YR 4/6); dry.
Silty GRAVEL; 50% fine to coarse rounded poorly graded
gravel; 50% low plasticity silt; loose; yellowish red (5YR 4/6);
dry.
- 2 feet no recovery
Gravelly SILT; 60% low plasticity silt, 40% gravel; firm;
yellowish red (5YR 4/6); dry.
Silty GRAVEL; 50% fine to coarse poorly graded gravel; 50%
silt; loose; yellowish red (5YR 4/6); dry.
Silty CLAY; medium plasticity; soft; yellowish red (5YR 4/6);
moist.
Sandy GRAVEL; 60% fine to coarse poorly graded gravel;
40% sand; loose; reddish brown (5 YR 4/4); dry.
Gravelly SILT; 60% low plasticity SILT; 40% fine to coarse
gravel; dry to moist.
Silty CLAY; yellowish red (5YR 4/6); moist.
Gravelly SILT; 60% low plasticity SILT; 40% fine to coarse
gravel; dry to moist.
Gravelly SILT; 70% low plasticity SILT; 30% fine to coarse
gravel; soft; dry to moist.
Silty CLAY; medium to high plasticity, trace fine gravel; soft;
yellowish red (5YR 4/6); moist.
0.116
0.14
0.199
0.099
0.114
0.13
0.049
0.192
0.242
0.141
0.043
0.026
0.042
0.62
0.172
0.166
0.172
0.179
0.293
0.12
Hydrated
bentonite pellets
(22 to 138 ft
bgs).
Hydrated
bentonite pellets
(22 to 138 ft
bgs).
6.5
8.1
4.2
14
13.6
5.4
9.7
13.3
3.7
3.5
4.9
3.9
11.2
17.5
11.6
15
10.5
9.3
19.1
10.4
6.2
7.6
5.6
14.1
5.8
9.7
10.8
16
3.6
5.5
20.2
19.7
5.1
3.3
12
GP
ML
ML
GM
CL
GP
ML
CL
ML
ML
CH
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
80
85
90
95
100
105
110
115
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 3 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
116.0
117.0
118.0
120.0
123.0
124.5
130.0
135.0
137.0
140.0
147.0
150.0
151.0
153.0
155.0
Silty CLAY; 95% medium to high plasticity silty clay, 5% fine
gravel; soft; yellowish red (5YR 4/6); moist.
Silty GRAVEL; 50% fine to coarse gravel, 50% low plasticity
silt; loose; reddish brown (5YR 5/3); dry.
Silty CLAY; low plasticity, trace fine gravel; soft; yellowish red
(5YR 4/6); moist.
Silty GRAVEL; 50% fine to coarse gravel, 50% low plasticity
silt; loose; reddish brown (5YR 5/3); dry.
Silty CLAY; low plasticity; stiff; reddish brown (5YR 4/4); dry
to moist.
Silty GRAVEL; 70% fine gravel, 30% low plasticity silt; loose;
reddish brown (5YR 5/3); dry.
Silty GRAVEL; 50% fine to coarse poorly graded gravel; 45%
silt; 5% sand; loose; yellowish red (5YR 4/6); moist; soil core
hot from drilling.
Clayey SILT; 95% low plasticity clayey sitl; 5% fine gravel;
soft.; moist.
Clayey SILT; 80% low plasticity clayey silt; 20% gravel; firm to
stiff; moist.
Silty GRAVEL; 70% fine to coarse gravel; 30% silt; loose;
reddish brown (5YR 4/4); dry to moist.
Silty GRAVEL; 50% fine to coarse gravel; 30% silt; 20% fine
to coarse sand; loose; yellowish red (5YR 4/6); wet.
Clayey SILT; 95% low plasticity clayey silts; 5% fine gravel;
stiff; yellowish red (5YR 4/6); moist.
Silty GRAVEL; 50% fine to coarse gravel; 30% silt; 20% fine
to coarse sand; loose; yellowish red (5YR 4/6); wet.
Clayey SILT; low plasticity clayey silts; stiff; yellowish red
(5YR 4/6); moist.
Silty GRAVEL; 60% fine to coarse gravel; 40% silt; loose;
yellowish red (5YR 4/6); wet.
0.076
0.14
0.11
0.124
0.139
0.04
0.1
0.191
0.24
0.21
0.199
0.04
0.11
0.12
0.05
0.04
0.081
0.26
0.78
0.111
0.13
0.112
Hydrated
bentonite pellets
(22 to 138 ft
bgs).
#10/20 sand
filter pack (138
to 152 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (140
to 150 ft bgs).
1.7
6.3
9.9
7.9
3.4
35.7
12.2
24.8
26.7
3.9
4.9
2.2
2.5
1.4
6.3
20.4
26.5
57.3
43.8
72.1
78
43.7
2.5
2.8
25
12.4
11.5
3.5
8.6
5.4
8.5
1.1
3.1
3.1
2.9
4.9
2.5
2.7
CH
GM
CL
GM
CL
GM
GM
ML
ML
GM
GM
ML
GM
ML
GM
MW34-
SB070820-
141
MW34-
GW070820-
150
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
120
125
130
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 4 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
160.0
161.5
163.0
166.0
168.0
168.5
170.0
171.3
172.0
173.0
176.0
179.5
180.0
186.0
187.0
190.0
191.0
193.0
Silty CLAY; low plasticity; soft; reddish brown (5YR 4/4);
moist to wet.
SILT; low plasticity silt; firm to stiff; yellowish red (5YR 4/6);
saturated; wet.
Silty GRAVEL; 70% fine to coarse gravel; 30% silt; loose;
yellowish red (5YR 5/6); saturated wet.
Silty CLAY; 85% silty clay; 15% fine gravel; firm to stiff;
reddish brown (5YR 4/3); moist.
Gravelly SILT; 70% silt; 30% fine gravel; soft; reddish brown
(5YR 4/4); wet.
- 6" boulder; hard.
Gravelly SILT; 70% silt; 30% fine gravel; cemented in
places; firm to stiff; reddish brown (5YR 4/4); Dry. Very Hot
Sample- Hard Drilling.
Gravelly SILT; 60% silt; 30% fine gravel; 10% fine to coarse
sand; soft; yellowish red (5YR 4/6); wet.
SILT; low plasticity clay; firm to stiff; yellowish red (5YR 4/6);
moist.
Gravelly SILT; 60% silt; 30% fine gravel; 10% fine sand; soft;
yellowish red (5YR 4/6); wet.
SILT; 95% low plasticity cohesive silt; 5% fine gravel; very
stiff; yellowish red (5YR 4/6); moist.
Gravelly SILT; 60% silt; 30% fine gravel; 10% fine sand; firm;
yellowish red (5YR 4/6); wet.
CLAY; low plasticity clay; hard, reddish brown (5YR 5/4); dry
to moist.
SILT; 95% low plasticity silt; 5% fine gravel; soft to stiff;
reddish brown (5YR 4/3); moist to wet.
Gravelly SILT; 50% low plasticity silt; 30% fine to coarse
gravel; 20% fine sand; firm; wet.
SILT; 95% low to medium plasticity silt; 5% fine gravel;
cohesive; reddish brown (5YR 4/4); wet.
Silty GRAVEL; 60% fine to coarse gravel; 40% Silt; loose;
(5YR 4/5); wet.
SILT; 85% low plasticity silt; 15% fine gravel; soft; yellowish
red (5YR 4/6); moist to wet.
CLAY; 90% low to medium plasticity clay; 10% fine gravel;
stiff; yellowish red (5YR 4/6); dry.
0.33
0.395
0.272
0.13
0.16
0.113
0.08
0.135
0.96
0.27
0.18
0.074
0.215
0.06
0.126
0.088
Hydrated
bentonite pellet
seal (152 to 173
ft bgs).
#10/20 sand
filter pack (173
to 187 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (175
to 185 ft bgs).
2.7
3.1
2.5
5.1
6.1
6.7
3.2
7.8
13.9
0.9
1.2
0
0.4
0
2.4
0
0.3
0.1
0.2
0.5
0.9
0.8
0.4
0.8
0.8
1.7
1.5
1.6
CL
ML
GM
CL
ML
ML
ML
ML
ML
ML
ML
CL
ML
ML
ML
GM
ML
MW34-
SB070820-
165
MW34-
GW070820-
180
MW34-
SB070820-
189
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
160
165
170
175
180
185
190
195
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 5 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
199.0
200.0
203.0
210.0
216.0
218.0
220.0
221.0
224.0
226.0
230.0
234.0
CLAY; 95% low to medium plasticity clay; 5% fine gravel; stiff;
yellowish red (5YR 4/6); dry.
CLAY; 90% low plasticity clay; 10% fine gravel; stiff; yellowish
red (5YR 4/6); moist.
Silty GRAVEL; 70% fine to coarse gravel; 40% silt; loose;
yellowish red (5YR 4/6); wet.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); dry to moist.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); moist.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); dry to moist.
No Recovery- Wet, lots of water in the hole.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; stiff; yellowish red (5YR 4/6); moist.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; stiff; yellowish red (5YR 4/6); moist to wet.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; firm to stiff; yellowish red (5YR 4/6); moist.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; stiff; yellowish red (5YR 4/6); dry.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
0.1
0.038
0.263
0.32
0.24
0.042
0.065
0.05
0.462
0.325
0.142
0.309
0.142
0.26
0.278
Hydrated
bentonite pellet
seal (187 to 247
ft bgs).
0.9
0.2
0.5
0.2
0.7
0.3
0.1
0.7
1
0.6
0.7
0.1
0.5
0.5
1.2
1.8
1.5
0.7
0.9
0.8
0.9
0.2
1.1
0.7
0.2
1.1
0.5
0.8
0.4
1.6
1.7
CL
CL
CL
GM
CL
CL
CL
CL
CL
CL
CL
MW34-
SB070820-
205
MW34-
GW070920-
210
MW34-
SB070920-
226
MW34-
GW070920-
230
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
200
205
210
215
220
225
230
235
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 6 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
240.0
247.0
250.0
253.0
254.5
256.3
257.0
258.3
259.0
260.0
270.0
sand; stiff; reddish brown (5YR 5/3); dry.
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; stiff; reddish brown (5YR 5/3); dry to moist
Silty CLAY; 80% low plasticity silty clay; 20% fine to medium
sand; hard; yellowish red (5YR 4/6); dry.
Silty CLAY; low plasticity silty clay; firm to stiff; yellowish red
(5YR 4/6); wet.
Silty GRAVEL; 60% fine gravel; 30% low plasticity silt; 10%
fine sand; loose; yellowish red (5YR 4/6) wet.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); moist.
Silty GRAVEL; 60% fine gravel; 30% low plasticity silt; 10%
fine sand; loose; yellowish red (5YR 4/6) wet.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); moist.
Silty GRAVEL; 60% fine gravel; 30% low plasticity silt; 10%
fine sand; loose; yellowish red (5YR 4/6) wet.
Silty CLAY; low to medium plasticity silty clay; trace fine
gravel; firm to stiff; yellowish red (5YR 4/6); moist.
Silty CLAY; low to medium plasticity silty clay; stiff; yellowish
red (5YR 4/6); dry to moist.
Silty CLAY; 90% medium plasticity silty clay; 10% fine gravel;
very stiff to hard; yellowish red (5YR 4/6); dry to moist.
0.1
0.06
0.36
0.21
0.34
0.26
0.25
0.269
0.244
0.15
0.275
0.132
0.329
0.355
0.313
0.43
0.4
0.183
0.35
#10/20 sand
filter pack (247
to 262 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (260
to 260 ft bgs).
2.3
0.6
0.5
0.3
0.5
0.2
0.2
0.2
0.1
0.3
0.1
0.2
0.3
0.2
0.1
0
0.2
0.3
0.1
0.2
1.3
0.8
0.1
0.6
0.9
1.5
6.2
0.9
0.3
0.4
0.3
3.5
6.8
3.5
15.4
1.1
CL
CL
CL
CL
GM
CL
GM
CL
GM
CL
CL
CL
MW34-
SB070920-
247
MW34-
GW070920-
260
MW34-
SB071020-
264
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
240
245
250
255
260
265
270
275
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 7 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
277.0
281.0
289.0
290.0
291.5
294.0
300.0
306.0
307.8
309.0
310.0
314.0
315.0
Clayey Gravel; 70% fine to coarse gravel; 20% silty clay; 10%
fine sand; cemented in places; dry to moist; hard drilling.
Silty CLAY; 95% medium plasticity silty clay; 5% fine gravel;
very stiff to hard; yellowish red (5YR 4/6); dry.
Silty CLAY; 80% low to medium plasticity silty clay; 20% fine
gravel; very stiff to hard; yellowish red (5YR 4/6); dry.
Gravelly SILT; 60% low plasticity silt; 40% fine to coarse
gravel; firm; wet.
Silty CLAY; 70% low plasticity clay; 20% fine gravel; stiff to
hard; reddish brown (5YR 4/4); moist.
Bottom 5 to 6 feet no recovery.
Silty GRAVEL; 60% Poorly Graded fine to coarse gravel; 40%
silt; loose; reddish brown (5YR 4/4); moist to wet.
Clayey SILT; 90% low plasticity clayey silt; 10% fine gravel;
cohesive; firm; reddish brown (5YR 5/3); moist.
Clayey SILT; 90% low plasticity clayey silt; 10% fine gravel;
cohesive; firm; reddish brown (5YR 5/3); moist.
Lost 1 foot out of bottom.
Clayey SILT; 90% low plasticity clayey silt; 10% fine gravel;
cohesive; firm; brown (7.5YR 5/3); moist.
GRAVEL; fine to coarse well graded gravel; cemented; white
0.107
0.05
0.046
0.225
0.236
0.04
0.2
0.5
0.101
0.21
0.16
0.32
0.225
0.08
0.021
0.36
0.29
Hydrated
bentonite pellet
seal (262 to 312
ft bgs).
3.6
5.4
12.3
1
3.6
1.6
6.5
120
5
22.5
11
4.2
1.9
0.9
0.2
0.1
15.5
14.4
6.3
8.3
9.9
10.6
5
7.6
2.4
8
2
4.2
17.7
51.3
4.5
GC
CL
CL
ML
CL
GM
ML
ML
ML
GP
MW34-
SB071020-
285
MW34-
SB071020-
300
MW34-
GW071020-
300
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
280
285
290
295
300
305
310
315
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 8 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
317.5
320.0
325.0
326.0
328.0
330.0
332.5
338.0
340.0
344.0
348.0
350.0
(5YR 8/1); dense; dry. Hard Drilling.
Silty GRAVEL; 70% Poorly Graded fine to coarse gravel; 30%
silt; loose; reddish brown (5YR 4/4); moist.
Silty GRAVEL; 60% Poorly Graded fine to coarse gravel; 40%
silt; loose; reddish brown (5YR 4/4); wet.
Silty CLAY; low plasticity silty clay; very stiff; cohesive;
reddish brown (5YR 4/4); moist.
Silty CLAY; low plasticity silty clay; very stiff; cohesive;
reddish brown (5YR 4/4); moist to wet.
Silty CLAY; 90% low plasticity silty clay; 10% fine sand; stiff;
cohesive; reddish brown (5YR 4/4); moist.
Gravelly SILT; 70% low plasticity silt; 30% fine gravel; stiff;
cohesive; reddish brown (5YR 4/4); dry to moist.
Gravelly CLAY; 60% low plasticity clay; 40% fine to coarse
gravel; cohesive; stiff; light brownish gray (10YR 6/2); dry to
moist.
Clayey SILT; 60% low plasticity silt; 40% clay; cohesive;
reddish brown (5YR 4/4); dry to moist.
Silty GRAVEL; 70% fine gravel; 30% low plasticity silt;
cemented in places; dense; light brownish gray (10YR 6/2);
dry to moist.
Clayey SILT; 60% low plasticity silt; 40% clay; cohesive; very
stiff; reddish brown (5YR 4/4); dry to moist.
Clayey SILT; 60% low plasticity silt; 40% clay; trace fine
gravel; cohesive; hard; reddish brown (5YR 4/4); dry to moist.
Clayey SILT; 55% low plasticity silt; 45% clay; cohesive; hard;
reddish brown (5YR 4/4); dry.
Boring ended at 350'
0.34
0.132
0.09
0.301
0.164
0.13
0.285
0.087
0.095
0.153
0.047
0.033
0.051
0.219
0.264
0.333
0.122
0.161
#10/20 sand
filter pack (312
to 330 ft bgs).
1-inch SCH 80
0.020-slot
screen ZIST
nested well (315
to 325 ft bgs).
Hydrated
bentonite pellet
backfill (330 to
350 ft bgs).
0.5
0.6
0.8
0.7
7.8
4
2.9
3.8
1.9
23.2
14.4
15.3
6.7
1.2
7.8
0.3
4.2
2.6
12.2
GM
GM
CL
CL
CL
ML
CL
ML
GM
ML
ML
ML
MW34-
GW071220-
320
MW34-
GW071220-
321
MW34-
SB071220-
349
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
7/9/2020 - 7/12/2020
320
325
330
335
340
345
350
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-34
PAGE 9 OF 9
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

1
2
/
1
7
/
2
0
5.0
6.0
7.0
12.0
12.7
16.5
20.0
No recovery. Hand augered to 5 ft bgs.
Silty SAND: brown (10YR 5/4); 70% fine sand, poorly graded;
30% silt; loose; moist.
Sandy SILT: yellowish brown (10YR 5/4); 60% silt; 40% sand;
soft; moist.
Sandy CLAY: mottled gray and light yellowish brown (2.5Y
6/3); 80% clay; 20% fine sand; stiff; cohesive; moist.
Silty SAND: yellowish brown (10YR 5/4); 70% sand, poorly
graded, fine to coarse; 30% silt; loose; wet.
SAND: yellowish brown (10YR 5/4); fine to coarse, poorly
graded; loose; wet.
Silty GRAVEL with Sand: reddish brown (5YR 4/3); 60%
gravel, fine to coarse, subangular to subrounded; 20% silt;
20% sand, fine to coarse; medium dense; cohesive in places;
wet.
0.528
0.371
0.138
0.182
0.135
0.254
Flush-mounted
vault (10-inch).
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
0
0.1
0.1
0.6
0.6
0.4
0.1
SM
ML
CL
SM
SP
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4463.84
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
19.83
LOCATION
2-inch Schedule 40 0.020-slot
#10/20 sand
REMARKS
4483.67
4483.23
Groundwater measured while drilling
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
12/2/2020 - 12/3/2020
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 1 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
21.5
25.0
28.0
30.0
37.0
40.0
Silty SAND: reddish brown (5YR 4/3); 60% sand, poorly
graded, fine to coarse; 40% silt; cohesive; compact; wet.
At 24.5 feet bgs, trace gravel.
Silty GRAVEL with Sand: reddish brown (5YR 4/3); 70%
gravel, fine to coarse; 20% silt; 10% sand; compact;
cohesive; wet.
SAND: reddish brown (5YR 4/3); 60% sand, well graded, fine
to coarse, subangular to subrounded; 40% gravel, fine to
coarse, loose; wet.
Silty GRAVEL with Sand: reddish brown (5YR 4/3); 50%
gravel, fine to coarse, subangular to subrounded; 30% silt;
20% sand; compact; cohesive in places; wet.
At 33.3 feet bgs, increase in sand content, decrease in silt
content.
At 34.5 feet bgs, decrease in sand content, increase in silt
content.
Clayey SILT: reddish brown (7.5YR 5/4); 100% fines, low to
medium plasticity; firm to stiff; cohesive; moist to wet.
At 39 feet bgs, trace sand, wet.
Sandy SILT: reddish brown (7.5YR 5/4); 80% silt, low
plasticity; 20% sand; stiff; moist to wet.
0.085
0.112
0.103
0.062
0.58
0.78
0.123
0.998
0.962
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
0.7
0.4
1.1
0.7
0.5
0.7
0.6
0.4
0.5
GM
SM
GM
SW
GM
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
25
30
35
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 2 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
43.0
45.0
50.0
52.0
52.8
54.0
58.5
60.0
63.0
At 44 feet bgs, trace fine gravel.
Silty GRAVEL: reddish brown (5YR 5/4); 60% gravel, fine to
coarse, subangular to subrounded; 30% silt; 10% sand, fine
to coarse; cohesive in places; compact; wet.
At 48 feet bgs, large clasts.
At 49.5 feet bgs, less moisture.
SAND: brown (7.5YR 4/4); 90% sand, poorly graded, fine to
coarse; 10% fine gravel; loose; wet.
Clayey GRAVEL: brown (7.5YR 4/4); 70% coarse gravel; 30%
clay; dense; moist.
SAND with Gravel: light reddish brown (5YR 6/4); 85% fine
sand, poorly graded; 15% fine gravel; loose; moist.
Clayey GRAVEL: brown (7.5YR 4/4); 70% gravel, fine to
coarse; 30% clay; dense; moist to wet.
At 57.5 feet bgs, increase in moisture.
CLAY: brown (7.5YR 4/4); low to medium plasticity clay; stiff;
cohesive; dry to moist.
Clayey SILT: brown (7.5YR 5/4); low to medium plasticity;
stiff; cohesive; moist.
CLAY: brown (7.5YR 5/4); lean clay; very stiff; cohesive;
cemented in places; dry to moist.
0.335
0.128
0.334
0.543
0.351
0.478
0.682
0.262
0.274
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
0.4
0.4
1
1
0.5
2.1
0.6
0.8
0.8
0.7
ML
GM
SP
GC
SP
GC
CL
ML
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
45
50
55
60
65
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 3 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
66.0
67.0
68.0
74.5
79.0
80.0
87.0
SAND with Gravel: light reddish brown (5YR 6/4); 85% sand,
poorly graded, fine to coarse; 15% gravel, fine to coarse; dry.
Clayey SILT: brown (7.5YR 5/4); low to medium plasticity;
firm to stiff; cohesive; moist.
At 72 feet bgs, wet sandy lens.
Clayey GRAVEL: brown (7.5YR 5/4); 70% gravel, fine to
coarse, subrounded to rounded; 30% clay; dense; cohesive;
moist.
Sandy SILT: brown (7.5YR 5/4); 60% silt; 40% sand; trace
fine gravel; firm; cohesive; moist; wet in places.
Sandy SILT: light brown (7.5YR 6/4); 70% silt, low plasticity;
30% sand; firm; cohesive; moist.
Clayey SILT: light brown (7.5YR 6/4); low to medium
plasticity; 10% sand; firm; cohesive; moist.
0.273
0.218
0.38
0.582
0.542
0.243
0.379
0.515
0.507
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
0.8
0.9
1.2
1
1.2
1.1
1.2
1.3
1.2
CL
SP
ML
GC
ML
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
70
75
80
85
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 4 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
89.0
90.0
91.5
94.8
104.0
111.0
SILT with Sand and Gravel: light brown (7.5YR 6/4); 60% silt;
20% sand; 20% gravel; firm; cohesive; moist to wet.
Gravelly CLAY: light brown (7.5YR 6/4); low to medium
plasticity; moist.
At 94.25 feet bgs, large clast.
CLAY: light brown (7.5YR 6/4); 80% clay, low to medium
plasticity; 10% sand, fine to coarse; 10% gravel, fine to
coarse; firm to stiff; cohesive; moist.
CLAY: light olive brown (2.5Y 5/3); lean clay; trace fine gravel;
hard; cohesive; dry.
0.604
0.395
0.282
0.61
0.226
0.448
0.222
0.118
0.131
0.093
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
1
1.8
1.6
1.5
1.5
1.8
2.1
1
0.6
1.7
ML
ML
CL
CL
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
90
95
100
105
110
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 5 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
113.0
116.5
124.0
124.5
125.0
126.0
131.5
CLAY with Sand: light olive brown (2.5Y 5/3) with brown
mottling; 85% lean clay, low to medium plasticity; 15% sand;
trace silt; laminated; firm to stiff; cohesive; moist.
CLAY: light olive brown (2.5Y 5/3) with brown mottling; lean
clay, low to medium plasticity; hard; cohesive; dry.
At 122.25 feet bgs, increase in silt.
Silty SAND: pale brown (10YR 6/3); 70% fine sand, poorly
graded; 30% silt; loose; moist to wet. Sample is closer to wet
than moist, but not saturated.
Sandy SILT: light olive brown with brown mottling; low
plasticity; moist to wet.
Silty SAND: pale brown (10YR 6/3); 70% fine sand, poorly
graded; 30% silt; loose; moist to wet. Sample is closer to wet
than moist, but not saturated.
Sandy SILT: pale brown (10YR 6/3) with trace iron oxide
staining in places; 70% silt, low plasticity; 30% sand;
laminated; firm to stiff; cohesive; moist.
At 130.3 feet bgs, increase in clay.
Sandy SILT: brown (7.5YR 4/4); 70% silt; 30% sand;
laminated; firm to stiff; cohesive; moist to wet.
0.092
0.082
0.126
0.171
0.343
0.508
0.141
0.118
0.802
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
1.8
2.1
1.7
1.2
1.5
1.5
1.3
1.8
CL
CL
CL
SM
ML
SM
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
115
120
125
130
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 6 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
134.5
135.5
137.0
146.5
148.0
150.0
153.0
156.0
157.0
Sandy SILT: brown (7.5YR 4/4); 60% silt; 30% sand; 10%
fine gravel; moist to wet.
Silty SAND: brown (7.5YR 4/4); 60% sand, fine to coarse;
30% silt; 10% fine gravel; dense; wet.
SILT with SAND: brown (7.5YR 4/4); 70% silt; 20% sand;
10% gravel; moist.
At 140 feet bgs, less gravel.
Gravelly SILT: brown (7.5YR 5/5); 60% silt; 40% gravel, fine
to coarse; stiff; cohesive; moist to wet.
At 147.5 feet bgs, less stiff and wetter.
SILT with Gravel: brown (7.5YR 5/5); 85% silt; 15% gravel;
stiff; cohesive; moist.
Sandy SILT: brown (7.5YR 5/4); 60% silt, low plasticity; 40%
sand, fine to coarse; trace fine gravel; firm; cohesive; moist to
wet.
At 152.5 feet bgs, increase in gravel.
SILT with Sand: brown (7.5YR 5/5); 85% silt; 15% sand; firm
to stiff; cohesive; moist to wet.
GRAVEL with Sand and Silt: brown (7.5YR 5/4); 50% gravel;
poorly graded, fine to coarse, subangular to subrounded; 35%
sand, fine to coarse; 15% silt; saturated; wet.
0.273
0.446
0.265
0.416
0.612
Hydrated
bentonite chips
(2 to 147 ft bgs).
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (147
to 160 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen (150 to
160 ft bgs).
1.6
1.9
1.6
2.5
1.9
1.8
2.9
2.1
2.2
2.4
ML
SM
ML
ML
ML
ML
ML
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 7 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
160.0
At 158 feet bgs, decrease in silt.
End of boring at 160 feet bgs.
0.1052.7
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
12/2/2020 - 12/3/2020
160
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-13L
PAGE 8 OF 8
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
9.0
18.5
20.0
No recovery. Hydrovac to 9 ft bgs.
Silty SAND: dark yellowish brown (10YR 4/6); 50% sand, well
graded, fine to coarse, subangular to subrounded; 30% silt,
non-plastic; 20% gravel and cobbles, well graded, fine to
coarse, subrounded, maximum diameter is 4 inches; dry.
At 10 feet bgs, cobbles are up to 6 inches.
At 12 feet bgs, color changes to yellowish red (5YR 5/6).
At 13 feet bgs, color changes to brown (7.5YR 4/4).
At 16 feet bgs, cobbles are up to 7 inches.
Silty SAND: brown (7.5YR 5/4); 45% sand, poorly graded, fine
to coarse, mostly fine, subangular to subrounded; 40% silt,
non-plastic; 15% gravel, poorly graded, fine to coarse, mostly
fine, subrounded to subangular, maximum diameter is 4
0.009
0.236
Flush-mounted
vault (10-inch).
Pea gravel (2 to
8 ft bgs)
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
SM
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Whitney Treadway
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
A: 227.57 B: 229.56
LOCATION
2-inch Schedule 40 0.020-slot
#10/20 sand
REMARKS
4722.89
A: 4722.60 B: 4722.36
Groundwater measured after installation.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
11/5/2020 - 11/10/2020
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 1 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
A: 4495.03 B: 4492.8
20.3
22.0
23.0
24.0
26.0
30.0
36.0
38.0
39.0
40.0
inches; moist.
CLAY: light brown (7.5YR 6/4); high plasticity clay with dark
red and light green stained nodules.
Clayey SAND with Gravel: brown (7.5YR 4/4); 55% sand,
poorly graded, fine to coarse, mostly fine to medium,
subangular to subrounded; 30% high plasticity clay; 15%
gravel, poorly graded, fine to coarse, mostly fine; moist.
Silty SAND: brown (7.5YR 4/4); 85% sand, poorly graded,
fine, subangular to subrounded; 15% silt, non-plastic; moist.
Gravelly CLAY: brown (7.5YR 5/4); 60% high plasticity clay;
40% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 5 inches; moist.
Clayey GRAVEL with Sand: brown (7.5YR 5/4); 50% gravel,
well graded, fine to coarse, subangular to subrounded; 30%
sand, well graded, fine to coarse, subangular to subrounded;
20% high plasticity clay with light green staining. Gradual
transition from gravelly clay above.
Silty Clayey SAND: brown (7.5YR 4/4); 60% sand, poorly
graded, fine to coarse, mostly fine, subangular to subrounded;
20% clay, medium to high plasticity (in nodules and layers);
20% silt, non-plastic; trace fine gravel; moist.
Silty SAND with Gravel: brown (7.5YR 4/4); 60% sand, well
graded, fine to coarse, subangular to subrounded; 20% silt,
non-plastic; 20% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 6 inches;
moist.
At 32 feet bgs, sandy gravelly CLAY lens; 32 to 33 feet bgs.
Gravelly CLAY: reddish brown (5YR 4/4); 70% high plasticity
clay; 40% gravel, well graded, fine to coarse, subangular to
subrounded; moist.
Silty SAND with Gravel: brown (7.5Y 5/4); 40% sand, well
graded, fine to coarse; 20% silt, non-plastic; 20% gravel, well
graded; 10% clay.
Silty SAND with Gravel: light brownish gray (2.5Y 6/2); 60%
sand, poorly graded, mostly fine, angular to subangular; 30%
silt, non-plastic; 10% gravel, poorly graded, mostly fine,
angular to subangular; dry. Crushed rock.
Clayey GRAVEL: brown (7.5YR 4/3); 70% gravel, well
graded, fine to coarse, angular to suangular, maximum
diameter is 4 inches; 30% medium plasticity clay matrix;
moist.
At 42 feet bgs, large tan to light gray boulder, approximately 1
foot in diameter.
0.08
0.122
0.069
0.065
0
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
0
0
0.7
CH
SC
SM
CH
GC
SC
SM
SM
CH
SM
SM
GC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
25
30
35
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 2 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
43.0
44.5
47.0
48.0
50.0
54.5
55.0
60.0
Silty SAND with Gravel: light brownish gray (2.5Y 6/2); 40%
sand, well graded, fine to coarse, angular to subrounded; 30%
gravel, well graded, fine to coarse, angular to subrounded,
maximum diameter is 5 inches; 30% silt, non-plastic; moist.
Clayey SAND with Gravel: red boulders, gravel, and sand with
clay matrix. Maximum diameter is 6 inches.
Silty SAND with Gravel: light brownish gray (2.5Y 6/2); 40%
sand, well graded, fine to coarse, angular to subrounded; 30%
gravel, well graded, fine to coarse, angular to subrounded,
maximum diameter is 5 inches; 30% silt, non-plastic; moist.
CLAY: light brown (7.5YR 6/3); 95% high plasticity clay,
slightly mottled; 5% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 4 inches.
At 52 feet bgs, small, olive silt nodules.
At 53.5 feet bgs, clay is mottled with red.
Clayey SAND with Gravel: brown (7.5YR 5/4); 40% sand, well
graded, fine to coarse, sunangular to subrounded; 35%
gravel, well graded, fine to coarse, angular to subangular,
maximum diamter is 4 inches; 15% medium plasticity clay;
10% silt, non-plastic; moist.
SAND with Gravel: brown (7.5YR 4/4); 60% sand, poorly
graded, fine to coarse, mostly fine to medium; 40% gravel,
well graded, fine to coarse, subangular to subrounded,
maximum diameter is 6 inches; trace silt; moist.
At 58 feet bgs, trace clay.
At 60 feet bgs, light gray pulverized rock; limestone.
Silty SAND with Gravel: brown (7.5YR 5/4); 50% sand, poorly
graded, fine to coarse, mostly fine, subangular to subrounded;
30% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 5 inches; 20% silt,
non-plastic; moist.
At 63 feet bgs, lithified fragment with clay.
0
0.098
0.029
0.048
0.02
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0.7
0.5
0.3
0.2
0.7
0.4
0.2
0.2
0.1
0
0
0
GC
SM
SC
SM
CH
SC
SP
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
45
50
55
60
65
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 3 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
66.0
69.0
70.5
75.0
80.0
At 66 feet bgs, clay content increases to 15%, silt content
decreases to 5%.
At 68 feet bgs, 8 inches cobble.
Sandy CLAY: brown (7.5YR 4/4); 75% high plasticity clay;
20% sand, poorly graded, fine; 5% gravel, well graded; small
nodules of red sand in clay. Mostly lithified.
At 70 feet bgs, white to light gray crushed rock; gray
limestone.
Clayey GRAVEL with Sand: brown (7.5YR 4/4); 40% gravel,
well graded, fine to coarse, subangular to subrounded,
maximum diameter is 7 inches; 30% medium plasticity clay;
30% sand, poorly graded, fine to medium, subangular to
subrounded; moist.
Silty SAND with Gravel: brown (7.5YR 4/4); 45% sand, well
graded, fine to coarse, subangular to subrounded; 35%
gravel, well graded, fine to coarse, subangular to subrounded,
maximum diameter is 4 inches; 20% silt, non-plastic; moist.
At 79 feet bgs, cobble of crystalline rock.
Silty Clayey SAND with Gravel: brown (7.5YR 4/4); 55%
sand, well graded, fine to coarse, subangular to subrounded;
30% gravel, well graded, fine to coarse, subangular to
subrounde, maximum diameter is 6 inches; 15% clay and silt
(varies by depth), low plasticity; moist.
0.058
0.016
0
0.056
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
0
SM
CH
GC
SM
SC
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
70
75
80
85
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 4 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
89.0
91.0
92.5
94.0
99.0
100.0
103.5
110.0
111.0
Silty Clayey SAND with Gravel: brown (7.5YR 4/4); 55%
sand, well graded, fine to coarse, subangular to subrounded;
30% gravel, well graded, fine to coarse, subangular to
subrounde, maximum diameter is 6 inches; 15% clay and silt
(varies by depth), low plasticity; moist.
Gravelly CLAY: brown (7.5YR 4/4); 60% high plasticity clay;
25% gravel, well graded, fine to coarse, subangular to
subrounded; 15% sand, poorly graded, fine to medium,
subangular to subrounded; moist. Lenses of light yellow sand.
Clayey GRAVEL: reddish brown (5YR 4/4); 60% gravel, well
graded, fine to coarse, subangular to subrounded; 20%
medium plasticity clay; 20% sand, poorly graded, mostly fine
to medium, subangular to subrounded; moist.
Silty SAND with Gravel: reddish brown (5YR 5/3); 50% sand,
poorly graded, fine to coarse, mostly fine to medium; 30%
gravel, well graded, fine to coarse, subangular to subrounded;
20% silt, non-plastic; moist. Some large, 6-inch cobbles.
Silty SAND: brown (7.5YR 4/4); 60% sand, poorly graded, fine
to medium; 30% silt, non-plastic; 10% gravel, poorly graded,
fine, subrounded; moist.
Clayey Silty GRAVEL with Sand: yellowish red (5YR 5/6);
50% gravel and cobbles, poorly graded, mostly coarse,
maximum diameter is 7 inches, subangular to subrounded;
30% sand, poorly graded, mostly fine to medium, subangular
to subrounded; 20% silt and clay, low plasticity; moist.
At 102 feet bgs, broken, light pink boulder.
Clayey Silty SAND with Gravel: yellowish red (5YR 5/6); 50%
sand, well graded, fine to coarse, subangular to subrounded;
30% gravel, poorly graded, mostly fine; 10% silt and clay, low
plasticity; moist.
Clayey GRAVEL with Sand: reddish brown (5YR 4/4); 45%
gravel and cobbles, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 6 inches; 35% sand, well
graded, fine to coarse, subangular to subrounded; 20%
0.069
0.074
0.013
0.052
0.012
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
0
0
0
SC
SM
CH
GC
SM
SM
GC
SC
SM
GC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
90
95
100
105
110
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 5 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
117.0
medium plasticity clay with some non-plastic silt; moist.
Samples look like clay matrix around gravel that was more
lithified before it was drilled.
At 114 feet bgs, largest cobbles.
Clayey SAND with Gravel: reddish brown (5YR 4/4); 45%
sand, well graded, fine to coarse, subangular to subrounded;
35% gravel and cobbles, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 7 inches;
20% medium plasticity clay with some non-plastic silt; moist.
Gradual transition from above. Similar to sample above, looks
like clay matrix around sand and gravel that was once more
lithified.
More clay from 120 to 122 feet bgs.
More clay from 130 to 131 feet bgs.
At 133 feet bgs, 6-inch lens of reddish yellow (5YR 7/8)
medium sand.
0.03
0.041
0.158
0.052
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
GC
SC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
115
120
125
130
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 6 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
135.0
137.0
142.0
147.5
150.0
157.0
Clayey GRAVEL with Sand: reddish brown (5YR 4/4); 40%
gravel and cobbles, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 6 inches; 30% sand, well
graded, fine to coarse, subangular to subrounded; 30%
medium to high plasticity clay matrix around sand and gravel;
moist.
Clayey SAND with Gravel: reddish brown (5YR 4/4); 50%
sand, well graded, fine to coarse, subangular to subrounded;
35% gravel and cobbles, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 6 inches;
15% medium plasticity clay matrix with non-plastic silt; moist.
Clayey SAND with Gravel: reddish brown (5YR 4/4); 60%
sand, poorly graded, fine to coarse, mostly fine to medium,
subangular to subrounded; 20% medium plasticity clay matrix;
20% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 3 inches; moist.
Sand becomes well graded, fine to coarse.
Silty SAND with Gravel: brown (7.5YR 4/4); 60% sand, poorly
graded, fine to coarse, mostly fine; 20% silt, non-plastic; 20%
gravel, well graded, fine to ccoarse; trace clay; moist.
SAND with Gravel and Clay: reddish brown (5YR 4/4); 50%
sand, well graded, fine to coarse, subangular to subrounded;
40% gravel, well graded, fine to coarse, maximum diameter is
7 inches; 10% medium plasticity clay; moist.
At 153 feet bgs, lighter 6-inch layer with silt (not clay); brown
(5YR 6/4).
0.035
0.076
0.078
0.049
0.122
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
GC
SC
SC
SM
SW
SC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
135
140
145
150
155
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 7 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
159.0
164.0
166.0
166.5
167.5
168.5
170.0
172.0
174.0
178.0
180.0
Clayey GRAVEL with Sand: reddish brown (5YR 4/4); 50%
gravel, well graded, fine to coarse, subangular to subrounded,
maximum diameter is 7 inches; 35% sand, well graded, fine to
coarse, subangular to subrounded; 15% low to medium
plasticity clay matris; moist.
Clayey Silty SAND with Gravel: reddish brown (5YR 4/4);
55% sand, well graded, fine to coarse, mostly fine, subangular
to subrounded; 25% clay and silt intermixed; 20% gravel,
poorly graded, fine to coarse, mostly fine, subangular to
subrounded, maximum diameter is 4 inches; moist.
Gravelly CLAY: reddish brown (5YR 4/4); 75% medium
plasticity clay; 25% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 4 inches;
moist; slightly lithified.
Gravelly SILT: reddish brown (5YR 4/4); 75% silt, non-plastic;
25% gravel, poorly graded, coarse, subangular to subrounded,
maximum diameter is 4 inches; moist; lithified.
Large, white to light pink cobble/boulder, cut by core barrel,
including silt and fine sand from cutting and grinding.
Silty SAND with Gravel: reddish brown (5YR 4/4); 40% sand,
poorly graded, fine to coarse, mostly fine, subangular to
subrounded; 30% gravel, well graded, fine to coarse,
subangular to subrounded; 30% silt; moist.
Clayey SAND and GRAVEL: reddish brown (5YR 4/4); 40%
sand, poorly graded, fine to coarse, subangular to
subrounded; 40% gravel, well graded, fine to coarse,
subangular to subrounded; 20% low plasticity clay; moist; with
lenses of light-colored, fine sand.
Clayey SAND with Gravel: reddish brown (5YR 4/4); 45%
sand, well graded, fine to coarse, subangular to subrounded;
35% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 6 inches; 20% medium
plasticity clay; moist.
Clayey GRAVEL with Sand: reddish brown (5YR 4/4); 40%
gravel, well graded, fine to coarse, subangular to subrounded;
30% medium plasticity clay; 30% sand, well graded, fine to
coarse, subangular to subrounded; moist.
Silty SAND and GRAVEL: reddish brown (5YR 5/4); 40%
sand, poorly graded, fine to coarse, mostly fine, subangular to
subrounded; 40% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 6 inches;
20% silt, non-plastic; moist.
At 175 feet bgs, large pulverized cobbles, light gray powder
with dark gray cobbles.
At 176 feet bgs, 6-inch fine sand layer (trace coarse).
Silty SAND with Gravel: reddish brown (5YR 4/3); 40% sand,
well graded, fine to coarse, subangular to subrounded; 35%
gravel, well graded, fine to coarse, subangular to subrounded,
maximum diameter is 5 inches; 25% clay and silt; moist. Most
gravel and cobbles are of dark gray limestone.
0.099
0.067
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
2.5
1.1
2.1
GC
SC
SM
CH
ML
SM
SC
SC
GC
SM
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
160
165
170
175
180
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 8 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
183.0
186.0
187.5
188.5
190.0
194.0
195.0
197.0
199.5
200.0
Silty SAND with Gravel: brown (7.5YR 4/4); 65% sand, poorly
graded, fine to coarse, mostly fine to medium, subangular to
subrounded; 20% gravel, poorly graded, fine to coarse, mostly
fine, subangular to subrounded, maximum diameter is 3
inches; 15% silt, slight plasticity; moist.
SILT with Gravel: brown (7.5YR 4/4); 85% silt, non-plastic;
15% gravel, poorly graded, mostly fine, subangular to
subrounded; trace sand lenses; moist. Gradual transition to
clay below.
CLAY with Sand and Gravel: brown (7.5YR 4/4); 80%
medium to high plasticity clay; 10% fine gravel, subangular to
subrounded; 10% fine to medium sand; moist. Transition to
silty sand below is a thin silt layer.
Silty SAND: brown (7.5YR 4/4); 70% sand, poorly graded,
mostly fine, subangular to subrounded; 20% silt, non-plastic;
10% gravel, well graded, fine to coarse, maximum diameter is
3 inches; moist.
Silty SAND with Gravel: brown (7.5YR 4/4); 45% sand, well
graded, fine to coarse, subangular to subrounded; 35% gravel
and cobbles, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 7 inches; 20% silt, slightly
plastic; moist.
CLAY with Sand and Gravel: brown (7.5YR 4/4); 70%
medium to high plasticity clay; 15% gravel, poorly graded,
fine, subangular to subrounded; 15% sand, well graded, fine
to coarse, subangular to subrounded; moist.
Silty SAND with Gravel: brown (7.5YR 4/4); 45% sand, well
graded, fine to coarse, subangular to subrounded; 35%
gravel, well graded, fine to coarse, subangular to subrounded;
20% silt, slightly plastic; moist.
Clayey SAND: brown (7.5YR 4/4); 45% sand, well graded,
fine to coarse, subangular to subrounded; 35% gravel, well
graded, fine to coarse, subangular to subrounded; 20% clay;
moist.
Silty Clayey SAND with Gravel: brown (7.5YR 4/4); 40%
sand, well graded, fine to coarse, subangular to subrounded;
40% silt and clay; 20% gravel, well graded, fine to coarse,
subangular to subrounded; moist.
Silty SAND with Gravel: brown (7.5YR 4/4); 45% sand, well
graded, fine to coarse, subangular to subrounded; 35%
gravel, well graded, fine to coarse, subangular to subrounded,
maximum diameter is 6 inches; 20% medium plasticity clay;
moist.
0.06
0.058
0.173
0.058
0.068
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
1.3
0.2
0
0
0
0
0
0
0
0
SM
SM
ML
CH
SM
SM
CH
SM
SC
SC
SM
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
185
190
195
200
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 9 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
203.0
204.5
208.5
210.5
220.0
CLAY: yellowish brown (10YR 5/4); 100% low to medium
plasticity clay; trace coarse gravel and cobbles; moist. Clay is
slightly mottled.
Silty SAND with Gravel: brown (7.5YR 5/4); 60% sand, poorly
graded, fine to coarse, mostly fine, subangular to subrounded;
20% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 6 inches; 20% silt,
non-plastic; moist.
Clayey SAND with Gravel: brown (7.5YR 4/4); 60% sand, well
graded, fine to coarse, subangular to subrounded; 20%
gravel, poorly graded, fine to coarse, mostly fine, subangular
to subrounded, maximum diameter is 4 inches; 20% clay,
medium plasticity clay; moist.
At 210 feet bgs, 3-inch clay layer.
Silty Clayey SAND with Gravel: brown (7.5YR 4/4); 65%
sand, poorly graded, fine to coarse, mostly fine, subangular to
subrounded; 20% clay and silt (alternating layers of none to
medium plasticity); 15% gravel, poorly graded, fine to coarse,
mostly fine, subangular to subrounded; moist.
At 218 feet bgs, 3-inch clay later.
Silty Clayey SAND with Gravel: brown (7.5YR 4/3); 60%
sand, well graded, fine to coarse, subangular to subrounded;
20% gravel, well graded, fine to coarse, subangular to
subrounded; 20% clay and silt (varying degrees of plasticity);
moist. Gradual transition to clayey sand below.
0.016
0.07
0.188
0.063
Hydrated
bentonite chips
(8 to 237 ft bgs).
2-inch SCH 40
PVC blank.
0
0
0
0
0
0
0
0
0
0
0
0
CL
SM
SC
SC
SM
SC
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
205
210
215
220
225
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 10 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
226.0
228.0
231.0
231.5
235.0
240.0
242.0
244.0
247.5
248.3
Clayey SAND and GRAVEL: brown (7.5YR 4/3); 40% sand,
well graded, fine to coarse, subangular to subrounded; 40%
gravel, well graded, fine to coarse, subangular to subrounded;
20% clay; moist.
Sandy CLAY: brown (7.5YR 4/3); 60% medium to high
plasticity clay; 30% sand, poorly graded, fine to medium,
subangular to subrounded; 10% gravel, poorly graded, fine to
coarse, mostly fine, subangular to subrounded; moist.
CLAY: brown (7.5YR 4/3); 100% low plasticity clay; trace
sand and gravel; moist.
Gravelly CLAY: brown (7.5YR 5/4); 50% medium to high
plasticity clay; 30% gravel, well graded, fine to coarse,
subangular to subrounded; 20% sand, well graded, fine to
coarse, subangular to subrounded; moist.
At 233 feet bgs, large, 7-inch cobble. Gravel is coarse,
including cobbles, with lenses of wet sand.
Clayey SAND with Gravel: yellowish brown (10YR 5/4); 40%
sand, well graded, fine to coarse, subangular to subrounded;
30% gravel, well graded, fine to coarse, subangular to
subrounded; 30% high plasticity clay; wet.
Clayey GRAVEL with Sand: yellowish brown (10YR 5/4); 60%
gravel, poorly graded, fine to coarse, mostly fine, subangular
to subrounded; 20% sand, poorly graded, coarse, subangular
to subrounded; 20% high plasticity clay; wet.
Gravelly CLAY: yellowish brown (10YR 5/4); 50% high
plasticity clay; 30% gravel, poorly graded, fine to coarse,
mostly fine with some large cobbles, maximum diameter is 5
inches; 20% sand, poorly graded, coarse, subangular to
subrounded; wet.
SAND with Clay and Gravel: yellowish brown (10YR 5/4);
70% sand, poorly graded, medium to coarse, subangular to
subrounded; 20% gravel, poorly graded, mostly fine,
subangular to subrounded; 10% medium plasticity clay; wet.
From 246 to 246.5 feet bgs, more clay.
SILT: reddish brown (5YR 5/4); 100% silt, slightly mottled;
trace coarse groavel and cobbles at lower contact.
0.018
0.008
Hydrated
bentonite chips
(8 to 237 ft bgs).
#10/20 sand
filter pack (237
to 252 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (240 to 250
ft bgs).
0
0
0
0
0
0
0
0
0
0
SC
CH
CL
CH
SC
GC
CH
SP
SC
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
230
235
240
245
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 11 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
250.0
255.0
259.0
260.0
264.0
265.0
268.0
269.0
271.0
Clayey GRAVEL: yellowish brown (10YR 5/4); 50% gravel,
poorly graded, mostly fine, some coarse and cobbles; 30%
sand, poorly graded, medium to coarse, subangular to
subrounded; 20% high plasticity clay; wet.
CLAY: reddish brown (5YR 4/4); 95% medium to high
plasticity clay; 5% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 3 inches;
moist.
Silty Clayey SAND with Gravel: reddish brown (5YR 4/4);
40% sand, poorly graded, fine to medium, subangular to
subrounded; 30% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 3 inches;
15% clay; 15% silt (in layers of differing plasticity); moist.
CLAY: reddish brown (5YR 4/4); 90% medium to high
plasticity clay; 10% gravel, well graded, fine to coarse,
subangular to subrounded, maximum diameter is 3 inches;
moist.
Gravelly CLAY: reddish brown (5YR 4/3); 70% low plasticity
clay; 30% gravel, well graded, fine to coarse, subangular to
subrounded, maximum diameter is 3 inches; trace sand;
moist.
CLAY: reddish brown (5YR 4/4); 100% high plasticity clay;
trace sand and gravel; moist.
Gravelly CLAY: reddish brown (5YR 4/4); 70% low plasticity
clay; 30% gravel, poorly graded, mostly fine, maximum
diameter is 2 inches; moist.
Silty GRAVEL with Sand: reddish brown (5YR 5/4); 45%
gravel, poorly graded, mostly fine; 35% sand, poorly graded,
mostly fine; 20% silt; moist. Lithified fragments.
Gravelly CLAY: reddish brown (5YR 4/4); 60% low to medium
plasticity clay; 40% gravel, well graded, fine to coarse,
maximum diameter is 4 inches; moist.
At 270 feet bgs, clay content increases to 70%, gravel content
decreases to 30%.
0.062
0.144
0.111
0.08
#10/20 sand
filter pack (237
to 252 ft bgs).
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(252 to 277 ft
bgs).
0
0
0
0
0
0
0
0
0
0
0
0
GC
CH
SC
SM
CH
CL
CH
CL
GM
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
250
255
260
265
270
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 12 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
273.0
278.0
281.0
284.0
286.0
288.0
290.0
292.5
Clayey GRAVEL with Sand: reddish brown (5YR 4/4); 40%
gravel, well graded, fine to coarse, subangular to subrounded,
maximum diameter is 3 inches; 30% sand, well graded, fine to
coarse, subangular to subrounded; 30% low plasticity clay;
moist. Lithified fragments.
Clayey SAND: reddish brown (5YR 4/4); 60% sand, poorly
graded, coarse, subangular to subrounded; 40% high
plasticity clay; wet.
At 280 feet bgs, some gravel.
Clayey GRAVEL: reddish brown (5YR 4/4); 60% gravel, well
graded, fine to coarse, subangular to subrounded, maximum
diameter is 3 inches; 40% low to medium plasticity clay;
moist.
Clayey GRAVEL: reddish brown (5YR 4/4); 45% gravel,
poorly graded, fine to coarse, mostly fine, some cobbles; 35%
sand, well graded, fine to coarse, subangular to subrounded;
20% low to medium plasticity clay; moist.
Silty SAND with Gravel: very pale brown (10YR 7/3); 40%
sand, poorly graded, mostly fine, subangular to subrounded;
30% gravel, poorly graded, mostly fine, some coarse and
cobbles; 30% silt, non-plastic; moist. Possibly crushed rock.
Thin, reddish yellow (5YR 6/6) sand lens at 288 feet bgs, then
Gravelly CLAY: reddish brown (5YR 4/4); 70% low to medium
plasticity clay; 30% gravel, well graded, fine to coarse,
subangular to subrounded; moist.
Clayey SAND with Gravel: reddish brown (5YR 4/4); 40%
sand, well graded, fine to coarse, subangular to subrounded;
40% medium plasticity clay; 20% gravel, poorly graded, mostly
fine, subangular to subrounded; wet.
Gravelly CLAY: reddish brown (5YR 4/4); 60% low to medium
plasticity clay; 30% gravel, well graded, fine to coarse; 10%
sand, poorly graded, coarse; moist.
0.018
0.175
0.184
0.16
Hydrated
bentonite chips
(252 to 277 ft
bgs).
#10/20 sand
filter pack (277
to 291 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (280 to 290
ft bgs).
Native soil sluff
(291 to 295 ft
bgs).
0
0
0
0
0
0
0
0
0
CL
GC
SC
GC
GC
SM
CL
SC
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
275
280
285
290
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 13 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
295.0
End of boring at 295 feet bgs.0.064
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/5/2020 - 11/10/2020
295
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-30R
PAGE 14 OF 14
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
6.0
8.0
11.0
12.5
14.5
15.0
20.0
Hydrovac to 6 ft bgs.
SILT: light yellowish brown (10YR 5/6); 60% silt; 30% clay;
10% fine sand; cohesive; moist to wet.
SAND: yellowish brown (10YR 5/6); 100% sand, poorly
graded, fine to medium; loose; moist.
Silty SAND: brown (10YR 4/3); 80% sand; 20% silt; cohesive;
firm; moist to wet.
SAND: brown (10YR 4/3); 100% sand, poorly graded, fine;
loose; moist.
Silty SAND: light yellowish brown (2.5Y 6/4); 80% sand; 20%
silt; cohesive; firm; moist to wet.
SAND: brown (10YR 4/3); 100% sand, poorly graded, fine;
loose; moist.
At 18 feet bgs, silty layer; moist to wet.
At 19.5 feet bgs, silty layer; moist to wet; light yellowish brown
0.519
0.185
0.369
0.158
0.117
0.061
0.098
Flush-mounted
Augustyn vault
(10-inch).
Hydrated
bentonite chips
(3 to 44 ft bgs).
2-inch SCH 40
PVC blank.
0.6
1.1
0.5
1.7
0.7
0.6
1.6
ML
SP
SM
SP
SM
SP
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4384.29
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
44.72
LOCATION
2-inch Schedule 40 0.020-slot
#10/20 sand
REMARKS
4429.01
4428.49
Groundwater measured while drilling
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
11/17/2020
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-36
PAGE 1 OF 5
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
24.5
25.0
30.0
32.0
35.0
38.0
40.0
(2.5Y light yellowish brown).
SAND: brown (10YR 4/3); 100% sand, poorly graded, fine;
loose; moist.
Silty SAND: yellowish brown (10YR 5/4); 80% sand; 20% silt;
cohesive; firm; moist to wet.
SAND: yellowish brown (10YR 5/4); 100% sand, poorly
graded, fine; loose; moist.
At 28.5 feet bgs, silty layer; moist to wet.
Silty SAND: 70% sand; 30% silt; cohesive in places; loose to
firm; moist to wet. NOTE: sample slid out of core barrel.
Depth to water at time of drilling: 30.82 feet bgs.
Silty SAND: 60% sand; 40% silt; laminated; loose; saturated
wet. NOTE: most of sample lost.
SILT with SAND: dark grayish brown (2.5Y 4/2); 80% silt;
20% sand; laminated; soft to firm; wet but not saturated.
No recovery; shoe sample was muck.
Sandy SILT: dark grayish brown (2.5Y 4/2); 80% silt; 40%
sand; cohesive; moist to wet.
At 42 feet bgs, color changes to brown (7.5YR 4/2).
0.438
0.442
0.121
0.251
0.348
0.127
0.631
0.558
0.935
Hydrated
bentonite chips
(3 to 44 ft bgs).
2-inch SCH 40
PVC blank.
5.7
2.2
1.7
1.9
7.5
0
0.4
0.1
0
SP
SM
SP
SM
SM
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/17/2020
25
30
35
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-36
PAGE 2 OF 5
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
43.0
45.0
49.0
49.8
50.0
52.2
60.0
65.0
At 43 feet bgs, wetter zone.
At 44.5 feet bgs, wetter zone, increased sand.
Silty SAND: 70% sand; 30% silt; some iron oxide staining;
cohesive; loose.
SAND: brown (7.5YR 5/2); fine to coarse sand; trace fine
gravel; loose; saturated wet.
Silty SAND: 70% sand; 30% silt; some iron oxide staining;
cohesive; loose.
GRAVEL with Sand and Silt: brown (7.5YR 5/2); 70% gravel,
poorly graded, fine to coarse, subangular to rounded; 20%
sand, coarse; 10% silt; wet.
SILT: very dark gray (7.5YR 3/1); laminated; trace iron oxide
staining; trace clay; trace fine gravel; stiff; moist, decreasing
moisture with depth.
At 56 ft bgs, dry to moist.
SILT: black (10YR 2/1); clayey silt; trace fine to coarse gravel;
cohesive; very stiff; dry.
At 62 feet bgs, color changes to dark gray (7.5YR 4/1); firm to
stiff; trace fine gravel; moist.
CLAY: brown (7YR 5/4); 50% clay; 40% silt; 10% gravel, fine
to coarse, subangular to surounded; dry to moist.
0.435
0.432
0.17
0.36
0.158
0.663
0.68
0.765
1.07
0.876
0.555
#10/20 sand
filter pack (44 to
54 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (47 to 52 ft
bgs).
Hydrated
bentonite chips
(54 to 105 ft
bgs).
0.7
0.3
0.6
0.4
0.5
0.4
0.8
1.2
0.8
0.3
0.5
ML
SM
SP
SM
GP
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/17/2020
45
50
55
60
65
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-36
PAGE 3 OF 5
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
68.0
69.0
70.0
76.0
76.5
78.0
79.0
82.0
84.0
85.0
CLAY: brown (7YR 5/4); 50% clay; 40% silt; 10% gravel, fine
to coarse, subangular to surounded; dry to moist.
SILT: trace fine gravel; cohesive; stiff; moist.
Clayey GRAVEL: brown (7.5YR 5/4); 60% gravel, fine to
coarse; 40% clay; moist.
SILT: brown (7.5YR 5/4); 80% silt; 15% clay; 5% fine gravel;
cohesive; very stiff; moist.
Gravelly SILT: brown (7.5YR 5/4); 60% silt; 40% gravel;
moist.
SILT: brown (7.5YR 5/4); trace gravel; cohesive; stiff;
laminated; dry to moist.
Gravelly SILT: brown (7.5YR 5/4); 70% silt; 30% fine gravel;
cohesive; stiff; moist.
Silty GRAVEL: light yellowish brown (2.5Y 6/3); 60% gravel,
fine to coarse, angular to subangular; 30% silt; 10% sand;
cohesive; medium dense; moist to wet.
At 80 feet bgs, color changes to light yellowish brown (10YR
6/4).
Silty GRAVEL: light yellowish brown (10YR 6/4); 60% gravel,
fine to coarse, angular to subrounded; 40% silt; cohesive;
dense; moist.
Silty SAND: light yellowish brown (10YR 6/4); 60% sand, fine
to coarse; 30% silt; 10% fine gravel; loose to medium dense;
moist to wet.
Silty GRAVEL: light yellowish brown (10YR 6/4); 60% gravel,
fine to coarse, subangular to subrounded, cobbles up to 4
inches in diameter; 40% silt; cohesive; dense; moist; socketed
matrix.
0.48
0.12
0.572
0.58
0.286
0.421
0.348
0.54
0.45
0.129
0.103
Hydrated
bentonite chips
(54 to 105 ft
bgs).
0.7
0.8
1
0.4
0.6
1.6
1.4
0.9
0.6
4.6
6.7
CL
ML
GC
ML
ML
ML
ML
GM
GM
SM
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/17/2020
70
75
80
85
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-36
PAGE 4 OF 5
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
89.0
98.5
100.0
110.0
Silty GRAVEL: light yellowish brown (10YR 6/4); 60% gravel,
fine to coarse, subangular to subrounded, cobbles up to 4
inches in diameter; 40% silt; cohesive; dense; moist; socketed
matrix.
At 90 feet bgs, moist to wet.
At 91 feet bgs, moist to wet sandy lens.
At 92.5 feet bgs, wet, sandy lens.
At 95 feet bgs, 5-inch cobble.
At 96 feet bgs, wet, sandy lens.
CLAY: pale olive (5Y 6/3); iron oxide staining in places;
laminated; very stiff; dry to moist.
SILT: dary gray (5Y 4/1); clayey silt; laminated; cohesive; very
stiff; moist; possibly lake bed sediments.
End of boring at 110 feet bgs.
0.237
0.176
0.073
0.11
0.057
0.119
0.785
1.4
2.34
2.89
2.25
Hydrated
bentonite chips
(54 to 105 ft
bgs).
Native sluff (105
to 110 feet bgs).
7
3.1
1.8
1.8
2.2
4
0.4
0.8
0.7
0.7
1.1
GM
CL
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/17/2020
90
95
100
105
110
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-36
PAGE 5 OF 5
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
7.0
10.0
11.3
14.5
17.5
18.5
18.8
20.0
Hydrovac to 7 ft bgs.
CLAY with Gravel: light olive brown (2.5Y 5/3) with red iron
oxide staining; 90% low to medium plasticity clay; 10% gravel,
poorly graded, mostly fine, subangular to subrounded; moist.
SILT: light olive brown (2.5Y 5/3) with red iron oxide staining;
100% silt with none to low plasticity; moist.
At 11 feet bgs, 3-inch medium sand layer, dark reddish brown
(5YR 3/4); wet.
Sandy CLAY: dark brown (7.5YR 3/4); 70% medium to high
plasticity; 30% sand, poorly graded, fine, subangular to
subrounded; wet.
CLAY: dark brown (7.5YR 3/4); 100% high plasticity clay;
moist.
Sandy CLAY/Clayey SAND: dark brown (7.5YR 3/4); moist.
SAND: medium to coarse sand and fine gravel; wet. 4-inch
layer.
Sandy CLAY/Clayey SAND: dark brown (7.5YR 3/4); moist.
0.135
0.089
0.01
0.157
0.135
0.168
0.067
0.037
Flush-mounted
vault (10-inch).
Hydrated
bentonite chips
(3 to 7 ft bgs).
6-inch stainless
steel vapor probe
at 8 feet bgs with
#10/20 sand
filter pack (7 to 9
ft bgs).
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(9 to 22 ft bgs).
1.7
1.6
1.5
0.4
0.4
0.4
0.5
0.6
CL
ML
CH
CH
SC
SP
SC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller and Whitney Treadway
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
S: 18.45 D: 42.28 BTOC
LOCATION
2-inch Schedule 40 0.020-slot
#10/20 sand
REMARKS
4348.36
S: 4348.00 D: 4347.97
Groundwater measured after installation.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
11/12/2020-11/13/2020
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-37
PAGE 1 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
S: 4329.55 D: 4305.69
27.5
30.0
34.5
35.8
36.5
40.5
CLAY: yellowish brown (5YR 4/6); 100% high plasticity clay;
wet. NOTE: recovery was not in-situ.
Clayey SAND: yellowish red (5YR 4/6); 70% sand, poorly
graded, fine to medium subangular to subrounded; 30% high
plasticity clay; wet. NOTE: recovery was not in-situ, depth
may not be exact.
CLAY with SAND: yellowish red (5YR 4/6); high plasticity clay
with orange and black staining; sand content varies, mostly
fine to medium; moist.
At 31 feet bgs, thin, wet, fine sand lense with red/orange and
black staining.
At 32.5 feet bgs, thin, wet, fine sand lense with red/orange
and black staining.
At 33 feet bgs, thin, wet, fine sand lense with red/orange and
black staining.
At 34 feet bgs, thin, wet, fine sand lense with red/orange and
black staining.
CLAY: yellowish red (5YR 4/6) mottled with light greenish
gray; hard clay; moist.
Sandy CLAY: yellowish red (5YR 4/6); 50% high plasticity clay
with orange and black staining; 30% sand, well graded, fine to
coarse, subangular to subrounded; 20% gravel, poorly graded,
fine; wet.
At 36.5 feet bgs, thin, wet, fine sand lense with red/orange
and black staining, then CLAY with SAND: yellowish red (5YR
4/6); high plasticity clay with orange and black staining; sand
content varies, mostly fine to medium; moist.
At 38.5 feet bgs, thin, wet, fine sand lense with red/orange
and black staining.
At 40 feet bgs, thin, wet, fine sand lense with red/orange and
black staining.
Sandy CLAY: yellowish red (5YR 4/6); high plasticity clay;
sand content varies; moist.
At 42 feet bgs, thin, wet, fine sand lense with red/orange and
black staining.
0.095
0.103
0.063
0.1
0.042
0.087
0.172
0.062
0.276
0.202
0.153
#10/20 sand
filter pack (22 to
39 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (25 to 35 ft
bgs).
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(39 to 57 ft bgs).
0
0.4
0.5
0.5
0.6
0.1
0.3
0.4
0.4
0.5
0.7
CH
SC
CH
CH
CH
CH
CH
Attempted
bailer
sample;
no
water.
MW37-
GW111220-
30
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/12/2020-11/13/2020
25
30
35
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-37
PAGE 2 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
43.5
44.3
50.0
60.0
64.5
At 43 feet bgs, large cobble.
Sandy CLAY with Gravel: yellowish red (5YR 4/6); 50% high
plasticity clay; 30% sand, well graded; 20% fine gravel; wet.
CLAY: mottled dark reddish brown (5YR 3/4) and pale brown
(10YR 6/3); 100% high plasticity clay; hard; moist.
At 46 feet bgs, color changes to mottled light olive gray (5Y
6/2) and yellowish brown (10YR 4/6) (possible staining);
softer than above.
No recover from 50 to 60 feet bgs due to rock in drill bit.
At 54 feet bgs approximate contact per driller.
CLAY: mottled dark reddish brown (5YR 3/4) with dark
yellowish brown (10YR 4/4); 85% high plasticity clay, firm to
stiff; 10% fine sand; 5% silt; cohesive in places; moist to wet.
Mixed recovery. NOTE: likely soft material pushed down from
above.
CLAY with Gravel: 70% medium to high plasticity clay; 30%
gravel, fine to coarse, angular to subrounded; cohesive in
placest; wet. Mixed Recovery.
0.124
0.43
0.205
0.143
0.217
0.237
0.351
Hydrated
bentonite chips
(39 to 57 ft bgs).
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (57 to
70 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (60 to 70 ft
bgs).
1
1.2
1.3
1.2
1.9
2
CH
CH
CH
CH
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/12/2020-11/13/2020
45
50
55
60
65
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-37
PAGE 3 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
66.0
67.5
70.0
CLAY with Gravel: 70% medium to high plasticity clay; 30%
gravel, fine to coarse, angular to subrounded; cohesive in
placest; wet. Mixed Recovery.
Gravelly CLAY: reddish brown (5YR 4/3); 55% medium to
high plasticity clay, soft; 30% fine gravel; 15% fine sand; very
wet. Mixed recovery. NOTE: boring open to 68 feet bgs,
boring making water.
End of boring at 70 feet bgs.
0.458
0.36
#10/20 sand
filter pack (57 to
70 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (60 to 70 ft
bgs).
2.3
1.8
CH
CH
MW37-
GW111320-
70
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/12/2020-11/13/2020
70
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-37
PAGE 4 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
7.0
9.0
12.0
13.0
19.5
Hydrovac to 7 ft bgs.
Silty SAND: brown (7.5YR 5/4); 75% loose, fine sand; 25%
silt; moist.
Sandy CLAY: brown (7.5YR 5/4); 70% cohesive, laminated
clay; 30% sand; moist.
At 10 feet bgs, sample is stiff.
Sandy CLAY: brown (7.5YR 5/4); 60% clay, less cohesive,
firm; 40% sand; moist.
Sandy CLAY: brown (7.5YR 5/4); 75% clay, cohesive, stiff;
25% sand; trace fine, rounded gravel; moist.
At 16 feet bgs, increase in moisture; firm.
At 18 feet bgs, wet, sandy lens.
GRAVEL with Sand and Clay: brown (7.5YR 5/4); 60%
0.385
0.646
0.305
0.518
0.442
Flush-mounted
Augustyn vault
(10-inch).
Portland cement
seal (3 to 7 ft
bgs).
6-inch stainless
steel vapor probe
at 8 feet bgs with
#10/20 sand
filter pack (7 to 9
ft bgs).
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(9 to 25 ft bgs).
0.7
0.3
0.3
0.3
0.3
SM
CL
CL
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
Sonic Grab
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
Sonic SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
S: 19.59 D: 18.53 BTOC
LOCATION
2-inch Schedule 40 0.020-slot
#10/20 sand
REMARKS
4498.56
S: 4497.64 D: 4497.8
Groundwater measured after installation.
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
11/14/2020
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-38
PAGE 1 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
S: 4478.05 D: 4479.27
20.5
28.5
30.0
32.0
38.0
39.0
42.0
gravel, fine to coarse, angular to subrounded; 30% fine sand;
10% clay; loose; moist to wet.
Sandy CLAY: brown (7.5YR 5/4); 80% clay, soft, cohesive;
20% fine sand; moist to wet.
At 22 feet bgs, trace coarse gravel.
Depth to water at time of drilling: 22.09 feet bgs.
At 22.5 feet bgs, wet lens.
At 23.75 feet bgs, 2 to 3 inch clast, less moisture.
At 25.5 feet bgs, 2 to 3 inch clast, increase in fine sand.
At 27.5 feet bgs, wet, sandy lens with trace gravel.
Sandy CLAY: brown (7.5YR 5/3); 70% clay, cohesive, stiff to
firm; 20% fine sand; 10% gravel, fine to coarse, subangular to
subrounded; dry to moist.
Clayey SAND: brown (7.5YR 5/3); 75% sand, fine to coarse,
loose; 25% clay; trace fine gravel; cohesive; wet.
Clayey SAND with Gravel: brown (7.5YR 5/3); 60% sand, fine
to coarse; 25% clay; 15% gravel, fine to coarse; loose to
compact; moist to wet.
At 35 feet bgs, wet lens, increase in gravel.
At 37 feet bgs, wet lens, increase in gravel.
Sandy CLAY: brown (7.5YR 5/4); 70% clay, cohesive; 30%
sand; trace fine gravel; wet.
GRAVEL with Sand and Clay: 80% gravel, fine to coarse,
subangular to subrounded; 20% sand and clay; sand is poorly
graded, fine to coarse; loose; wet (saturated).
At 41 feet bgs, increase in clay (gray layer).
At 42 feet bgs, 6 to 8 inch clast, then Sandy CLAY with
Gravel: brown (7.5YR 5/4); 60% lean clay, cohesive, firm to
0.503
0.467
0.355
0.485
0.507
0.397
0.498
0.395
0.103
0.42
Hydrated
bentonite chips
(9 to 25 ft bgs).
#10/20 sand
filter pack (25 to
39 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (27 to 37 ft
bgs).
Hydrated
bentonite chips
(39 to 57 ft bgs).
0.3
0.2
0.1
0.2
0.2
0.4
0.4
0.4
0.3
1.1
GW
GC
CL
CL
SC
SC
CL
GP
GC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/14/2020
25
30
35
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-38
PAGE 2 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
45.5
52.5
54.0
56.0
59.0
60.0
62.5
63.5
64.0
stiff; 30% fine sand; 10% fine to coarse gravel, subangular to
subrounded; moist to wet.
CLAY: light gray (5Y 7/2) mottled with brown; lean clay, very
stiff to hard; cohesive; dry.
SAND with Gravel: dark reddish brown (5YR 3/4); 60% sand,
fine to coarse; 40% gravel, fine to coarse, rounded; loose;
wet.
Clayey GRAVEL with Sand: yellowish brown (10YR 5/4); 60%
gravel, fine to coarse, subangular to subrounded; 20% clay;
20% sand; cohesive; dense; moist to wet.
SILT: yellowish brown (10YR 5/4); 80% silt; 10% fine sand;
10% fine gravel; very stiff; cohesive; moist.
Silty GRAVEL with Sand: yellowish brown (10YR 5/4); 60%
gravel, poorly graded, fine to coarse, subangular to
subrounded; 20% silt; 20% sand; cohesive; medium dense;
moist to wet.
SAND: dark brown (10YR 3/3); poorly graded sand; loose;
saturated; wet.
GRAVEL with Clay: brown (7.5YR 4/4); 80% gravel, fine to
coarse, subangular to subrounded; 10% clay; 10% sand,
medium to coarse; loose; wet.
SILT: brown (7.5YR 4/4); cohesive; stiff; moist to wet.
GRAVEL with Sand: brown (7.5YR 4/4); 70% gravel, poorly
graded, fine to coarse, subangular to subrounded; 25% sand,
fine to coarse; 5% clay; loose; wet.
0.446
0.394
0.095
0.088
0.27
0.252
0.22
0.239
0.243
0.15
0.12
0.112
Hydrated
bentonite chips
(39 to 57 ft bgs).
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (57 to
71 ft bgs).
2-inch SCH 40
PVC 0.020-slot
screen nested
well (60 to 70 ft
bgs).
1.1
1
1
0.9
1
1.1
1.2
1
1
1
1.1
1
CL
CL
SP
GC
ML
GM
SP
GP
GC
ML
GP
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/14/2020
45
50
55
60
65
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-38
PAGE 3 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
66.0
67.5
70.0
71.0
74.0
75.0
80.0
GRAVEL with Sand: brown (7.5YR 4/4); 70% gravel, poorly
graded, fine to coarse, subangular to subrounded; 25% sand,
fine to coarse; 5% clay; loose; wet.
Silty GRAVEL: brown (7.5YR 4/3); fine to coarse gravel,
rounded; cohesive; dense; moist.
GRAVEL with Sand and Silt: brown (7.5YR 4/3); 70% gravel,
poorly graded, fine to coarse; 20% sand, fine to coarse; 10%
silt; loose; wet.
Sandy SILT: brown (7.5YR 4/4); 80% silt, 20% sand;
cohesive; firm to stiff; moist to wet.
GRAVEL with Sand and Silt: brown (7.5YR 4/3); 70% gravel,
poorly graded, fine to coarse; 20% sand, fine to coarse; 10%
silt; loose; wet.
Sandy SILT: 80% silt; 20% sand; trace gravel, fine to coarse;
cohesive; firm; moist.
At 79.5 feet bgs, increase in clay; stiff.
End of boring at 80 feet bgs.
0.172
0.344
0.183
0.406
0.27
0.66
0.423
2-inch SCH 40
PVC 0.020-slot
screen nested
well (60 to 70 ft
bgs).
#10/20 sand
filter pack (57 to
71 ft bgs).
Hydrated
bentonite chips
(71 to 72 ft bgs).
Native soil sluff
(72 to 80 ft bgs).
0.9
1.2
1.2
1
0.9
1.2
1.3
GP
GM
GP
GM
ML
GP
GM
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
11/14/2020
70
75
80
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
MW-38
PAGE 4 OF 4
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T

D
E
C
2
0
2
0
_
W
T
J
M
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

3
/
1
0
/
2
1
1.0
5.0
7.0
10.0
13.0
15.0
16.5
18.5
19.0
20.0
Top soil; dark brown
Sandy SILT; non-cohesive; non-plastic; (7.5YR 3/3) dark
brown with gray mottling; moist
Lean CLAY; stiff; low to medium plasticity; cohesive; trace
gravel; (5Y 5/2) olive gray; moist
Silty SAND; medium dense; fine sand; cohesive; reddish
brown/grayish brown mottled; wet
- Increase clay; trace fine gravel
Sandy CLAY; lean; medium plasticity; mottled reddish
brown/grayish brown; moist to wet
Poorly graded SAND with silt; fine sand, (5YR 6/6)
yellowish red; wet; saturated
Silty SAND; fine sand; slightly cohesive; (7.5YR 4/3)
brown; moist to wet
Poorly Graded SAND; fine to coarse; (7.5YR 4/3) brown;
wet
CLAY; lean; trace gravel; medium plasticity; moist
Silty GRAVEL with Sand; fine to coarse gravel; fine sand;
dense; moist
Boring TD at 20' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4.5 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (8 to
20 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (9
to 19 ft bgs).
0
0
0
0
0
0
0
0
0
ML
CL
SM
CL
SP
SM
SP
CL
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
DPT Core
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4375.25
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA/DPT SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
8.67
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4383.92
4383.49
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/5/2021
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-01
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-10
5.0
10.0
15.0
Sandy SILT; cohesive; (5YR 3/1) very dark gray; moist
Sandy SILT; slightly cohesive; fine sand; (7.5Y 3/1) very
dark gray; wet
Silty SAND; fine to medium sand; loose; (2.5Y 5/2) grayish
brown; wet (saturated)
Boring TD at 15' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
#10/20 sand
filter pack (4 to
15 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (5
to 15 ft bgs).
3.8
6.2
1.4
ML
ML
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4434.60
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
2.72
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4437.32
4436.95
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/2/2021
5
10
15
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-02
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-11
0.4
2.0
6.0
8.0
Topsoil
Sandy SILT; non-plastic; soft; fine to coarse sand; trace
fine gravel; (7.5YR 5/3) brown; moist
Clayey GRAVEL with Sand; fine angular to subrounded
gravel; fine to coarse sand; loose; (10YR 5/4) yellowish
brown; moist
Clayey SAND; fine to medium sand; medium dense;
cohesive; (5YR 5/2) grayish brown; wet
TD boring at 8' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(1 to 2 ft bgs).
#10/20 sand
filter pack (2 to
8 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (3
to 8 ft bgs).
4.0
2.9
ML
GC
SC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4419.83
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
3.15
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4422.98
4422.53
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/2/2021
5
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-03
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-16
0.3
6.0
6.5
12.0
13.0
15.0
18.0
20.0
Sandy SILT with Gravel; fine to medium sand; fine
subrounded to rounded gravel; stiff; cohesive; (7.5YR 3/3)
dark brown; moist
CLAY, lean; stiff; plastic; trace fine sand; (5Y 7/2) light
gray; dry
Sandy CLAY; lean; cohesive; fine to medium sand; trace
fine gravel; stiff; (7.5YR 4/6) strong brown; dry to moist
Gravelly CLAY; lean; cohesive; subangular to subrounded
fine gravel; low plasticity; moist
Sandy SILT; lean; cohesive; fine sand; stiff; (5Y 7/2) light
gray; wet
Poorly graded SAND with Silt and Gravel; fine to coarse
sand; fine gravel; loose; (5Y 7/2) light gray; wet
Sandy CLAY; lean; cohesive; low to medium plasticity;
stiff; gray and light brown mottled; moist
TD boring at 20' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (9 to
20 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (10
to 20 ft bgs).
0.0
0.0
0.0
0.0
0.0
0.0
ML
CL
CL
CL
ML
SP
CL
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4405.81
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
10.02
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4415.83
4415.47
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/5/2021
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-04
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-20
1.0
6.0
11.0
16.0
17.0
18.0
20.0
21.0
23.5
27.0
30.0
Topsoil
CLAY; lean; cohesive; stiff; (10YR 4/2) dark grayish
brown; moist
Sandy SILT; fine sand; laminated; stiff; (10YR 4/4) dark
yellowish brown; moist
Silty SAND; poorly graded fine; medium dense; (10YR
5/8) yellowish brown; moist
Sandy SILT; fine sand; cohesive; (7.5YR 4/4) brown;
moist to wet
Poorly Graded SAND; fine to coarse sand; medium dense;
(7.5YR 4/4) brown; moist
Silty GRAVEL; fine to coarse gravel; subangular to
angular; cemented in places; (5YR 4/4) reddish brown;
moist
Poorly Graded GRAVEL; fine to coarse gravel; fine to
coarse sand; dense; weakly cemented; brown and gray
mottled; moist
Sandy CLAY; lean; low plasticity; firm; trace gravel; (5YR
5/6) yellowish red; moist
Silty SAND; poorly graded fine sand; medium dense; (5YR
5/4) reddish brown; wet
Poorly Graded GRAVEL with Sand and Silt; fine to coarse
gravel; fine to coarse sand; medium dense; (5YR 5/3)
reddish brown; wet
TD boring at 30' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(7 to 18 ft bgs).
#10/20 sand
filter pack (18 to
30 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (20
to 30 ft bgs).
4.8
0.7
0.7
0.0
0.0
0.0
CL
ML
SM
ML
SP
GM
GP
CL
SM
GP
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
DPT Core
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4473.74
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA/DPT SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
23.64
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4497.38
4496.96
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/3/2021
5
10
15
20
25
30
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-05
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Drilled near former well GW-27
0.8
6.5
10.0
Topsoil
Sandy SILT; cohesive; fine sand; dark gray; moist
- becomes wet
Silty SAND; fine sand; cohesive; gray; wet
TD boring at 10' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(1.5 to 3 ft bgs).
#10/20 sand
filter pack (3 to
10 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (4
to 9 ft bgs).
0.0
0.0
ML
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4441.35
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
2.31
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4443.66
4443.23
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/5/2021
5
10
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-06
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
6
1
4
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-50
1.5
5.0
6.0
15.0
20.0
26.0
30.0
Topsoil
Silty SAND; Fine; loose; 5YR 4/4 reddish brown; moist
CLAY with Sand; low plasticity; fine sand; stiff; (2.5Y 7/2)
light gray; dry
Silty SAND; poorly graded fine sand; laminated in places;
dense; (5YR 4/3) reddish brown; moist
Well Graded SAND with Gravel; fine to coarse sand; fine
to coarse rounded to subangular gravel; loose; (5YR 4/3)
reddish brown; moist
Silty SAND; fine to coarse; cohesive; compact; trace
gravel; (5YR 3/4) dark reddish brown; moist to wet
-Increase moisture
Clayey SAND; fine sand; medium dense; (5YR 4/6)
yellowish red; wet
TD boring at 30' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
#10/20 sand
filter pack (4 to
7 ft bgs).
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(7 to 18 ft bgs).
#10/20 sand
filter pack (18 to
30 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (20
to 30 ft bgs).
0.0
9.1
2.5
3.4
0
0
SM
CL
SM
SW
SM
SC
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4469.21
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
21.09
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4490.30
4490.05
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/2/2021
5
10
15
20
25
30
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-07
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-52
1.0
2.0
3.0
5.0
7.0
12.0
13.0
15.0
18.5
19.0
20.0
Concrete
Gravelly CLAY; cohesive; low plasticity; fine gravel;
(2.5YR 6/2) light brownish gray; moist
Silty SAND; poorly graded fine to coarse sand; medium
dense; (2.5YR 6/2) light brownish gray; moist
Sandy GRAVEL with SILT; poorly graded, fine to coarse
rounded to subrounded gravel; dense; (10YR 6/2) light
brownish gray with orange/yellow mottling; moist
Clayey SILT; slightly cohesive; trace fine gravel; stiff;
(10YR 6/4) light yellowish brown; moist to wet
Silty SAND; poorly graded fine sand; cohesive; dense;
(7.5YR 5/4) brown; wet
-saturated
Poorly graded GRAVEL; fine to coarse gravel; fine sand;
loose; (7.5YR 5/4) brown; wet
SILT; shoesive; stiff; (7.5YR 5/4) brown; moist
Silty GRAVEL with Sand; fine to coarse angular to
rounded gravel; fine sand; cohesive; medium dense; (5YR
6/4) light reddish brown; wet
Clayey SILT; cohesive; firm; (5YR 4/4) reddish brown;
moist
Gravelly SILT; cohesive; fine gravel; firm; (5YR 4/4)
reddish brown; moist
TD boring at 20' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
#10/20 sand
filter pack (7 to
20 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (8
to 18 ft bgs).
0.0
0.0
0.0
0.0
CL
SM
GP
ML
SM
GP
ML
GM
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
DPT Core
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4449.45
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA/DPT SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
5.72
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4455.17
4454.74
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/6/2021
5
10
15
20
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-08
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-53
0.5
7.0
15.0
Topsoil
Silty CLAY; trace gravel; low plasticity; (2.5Y 5/3) light
olive brown; moist
Sandy SILT; fine sand; stiff; (10YR 4/3) brown; wet
-increase sand
TD boring at 15' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(1.5 to 3.5 ft
bgs).
#10/20 sand
filter pack (3.5
to 15 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (5
to 15 ft bgs).
7.1
6.5
5.3
ML
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
HSA Cuttings
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4380.18
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
5.21
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4385.39
4384.93
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/1/2021
5
10
15
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-09
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-59
1.0
2.5
7.5
10.0
12.0
14.0
18.0
22.5
24.0
25.0
28.0
29.0
30.0
Topsoil
Silty GRAVEL; fine to coarse gravel; dense; (2.5Y 5/4)
light olive brown; moist
SILT; cohesive; firm; (2.5Y 3/3) dark olive brown; moist
Sandy SILT; cohesive; firm; fine sand; (2.5Y 13/1) very
dark gray; moist
Silty SAND; poorly graded fine to coarse sand; dense;
(7.5YR 4/4) brown; moist
Silty GRAVEL with Sand; fine to coarse rounded to
subangular gravel; fine to coarse sand; dense; (7.5YR 3/3)
dark brown; moist
Poorly graded SAND; fine to coarse sand; fine gravel;
compact; (7.5YR 4/3) brown; moist
- moist to wet (not saturated)
Poorly graded GRAVEL with Silt and Sand; fine to coarse
gravel; fine sand; dense; (7.5YR 4/3) brown; moist
Sandy CLAY; fine sand; cohesive; (7.5YR 4/3) brown;
moist
-trace fine rounded gravel
Poorly graded SAND; fine to medium sand; dense; (10YR
4/6) dark yellowish brown; wet
Poorly graded GRAVEL; fine to coarse angular to
subrounded gravel; dense; moist
-becomes wet; increase sand
Poorly graded GRAVEL with Sand; fine to coarse rounded
to subrounded gravel; coarse sand; dense; (10YR 4/6)
dark yellowish brown; wet
SILT; cohesive; firm; dark gray to light gray mottled; moist
TD boring at 30' bgs
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(7 to 18 ft bgs).
#10/20 sand
filter pack (18 to
30 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (20
to 30 ft bgs).
0.2
0.0
0.1
0.3
0.1
0.0
0.0
GM
ML
ML
SM
GM
SP
GP
CL
SP
GP
GP
ML
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
DPT Core
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4383.42
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA/DPT SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
26.95
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4410.37
4409.82
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/7/2021
5
10
15
20
25
30
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-10
PAGE 1 OF 1
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Replacing GW-61
0.5
3.0
10.0
11.5
17.0
18.0
20.5
26.0
29.0
33.5
35.0
Asphalt
Sandy SILT; trace fine gravel; firm; (7.5YR 5/3) brown;
moist
Silty SAND; fine to medium sand; compact; (10YR 4/4)
dark yellowish brown; moist
-increase moisture
-quartzite cobble from 8-9'
Clayey SAND; fine to coarse sand; slightly cohesive; (5YR
4/4) reddish brown; moist
Poorly graded SAND with Gravel; fine to coarse sand; fine
to coarse subangular to subangular gravel; (2.5YR 5/3)
reddish brown; moist
-Cobble
Lean CLAY; trace fine sand; cohesive; soft; moist to wet
Clayey SAND; fine to coarse sand; trace fine gravel;
compact; cohesive; moist to wet
Poorly graded GRAVEL; fine to coarse gravel; fine to
coarse sand; cemented in places; very dense; dry to moist
Lean CLAY; low to medium plasticity; trace fine gravel;
cohesive; hard; (10YR 5/4) yellowish brown; moist
SILT with Sand; cohesive; firm; (10YR 5/4) yellowish
brown; moist to wet
Silty SAND; fine to coarse sand; trace fine gravel; medium
dense; (7.5YR 5/6) strong brown; moist to wet
Flush-mounted
vault (6-inch).
Hydrated
bentonite chips
(2 to 4 ft bgs).
Soil Vapor
Probe
2-inch SCH 40
PVC blank.
Hydrated
bentonite chips
(7 to 28 ft bgs).
#10/20 sand
filter pack (18 to
0.4
0.3
0
0
0
0
0
0
0
0
0
ML
SM
SC
SP
CL
SC
GP
CL
ML
SM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
GROUT TYPE/QUANTITY
DPT Core
GROUND ELEVATION (FT MSL)
TOP OF CASING (FT MSL)
4475.61
CASING TYPE/DIAMETER
Joe Miller
Salt Lake City, UT
GRAVEL PACK TYPE
HSA/DPT SCREEN TYPE/SLOT
LOGGED BY
DRILLING METHOD
SAMPLING METHOD
29.09
LOCATION
2-inch Schedule 40 0.010-slot
#10/20 sand
REMARKS
4504.70
4504.39
GROUND WATER ELEVATION (FT MSL)
DEPTH TO WATER (FT BGS)
Hydrated Bentonite Chips
2-inch Schedule 40 PVC
4/7/2021
5
10
15
20
25
30
35
700 S 1600 E PCE Plume
BORING/WELL NUMBER
Continued Next Page
238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-11
PAGE 1 OF 2
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
40.0
Silty GRAVEL; fine to coarse subrounded to subangular
gravel; cemented in places; dense; moist to wet
-becomes saturated
TD boring at 40' bgs
30 ft bgs).
2-inch SCH 40
PVC 0.010-slot
screen well (30
to 40 ft bgs).
0
GM
WELL DIAGRAMLITHOLOGIC DESCRIPTION
PI
D

(
p
p
m
)
CO
N
T
A
C
T
DE
P
T
H
DE
P
T
H
(f
t
.

B
G
L
)
EX
T
E
N
T
U.
S
.
C
.
S
.
SA
M
P
L
E

I
D
.
GR
A
P
H
I
C
LO
G
Ma
g
n
e
t
i
c
Su
s
c
e
p
t
i
b
i
l
i
t
y
Continued from Previous Page
4/7/2021
40
700 S 1600 E PCE Plume
BORING/WELL NUMBER238824.6495-F3048-005.DRILL
BORING/WELL CONSTRUCTION LOG
555 17th Street, Suite 500
Denver, CO 80202
[phone]
PROJECT NAME
RG-11
PAGE 2 OF 2
DATE DRILLED
PROJECT NUMBER
WH
I
T
N
E
Y
'
S

B
O
R
I
N
G

L
O
G

S
L
C

V
A

P
L
U
M
E

D
R
A
F
T
_
0
5
1
9
2
1
.
G
P
J

L
A
E
W
N
N
0
1
.
G
D
T

6
/
1
4
/
2
1
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
9/1/1998 12/1/2011 9/1/2016 11/30/2018 12/6/2019 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-01D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 1 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
4530
9/1/1998 11/1/2011 9/1/2016 11/30/2018 6/16/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-01S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 2 of 68
Appendix G
Water Level Elevations
4490
4500
4510
4520
4530
4540
10/1/1998 6/1/2014 4/3/2018 3/4/2019 6/16/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-02: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 3 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
4530
9/1/1998 10/1/1998 11/1/1998
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-03: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 4 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
4530
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-03RA: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 5 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-03RB: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 6 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-03RC: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 7 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-03RD: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 8 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
9/1/1998 11/1/2011 9/1/2016 11/30/2018 12/6/2019 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-04: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 9 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
9/1/1998 10/1/199811/1/1998 2/1/2011 11/1/2011 6/1/2014 4/1/2016
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-05: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 10 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
4/3/2018 9/27/2018 3/4/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-05R: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 11 of 68
Appendix G
Water Level Elevations
4530
4540
4550
4560
4570
4580
2/1/2011 4/1/2016 4/3/2018 11/30/2018 12/4/2019 9/21/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-06: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 12 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
12/19/2018 12/4/2019 6/16/2020 9/22/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-08A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 13 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
12/19/2018 12/4/2019 6/16/2020 9/22/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-08B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 14 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
12/19/2018 12/4/2019 6/16/2020 9/22/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-08C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 15 of 68
Appendix G
Water Level Elevations
4280
4290
4300
4310
4320
4330
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-12D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 16 of 68
Appendix G
Water Level Elevations
4280
4290
4300
4310
4320
4330
12/4/2019 6/16/2020 9/21/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-12S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 17 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/19/2018 3/5/2019 12/4/2019 9/21/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-13D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 18 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/6/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-13L: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 19 of 68
Appendix G
Water Level Elevations
4440
4450
4460
4470
4480
4490
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/6/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-13S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 20 of 68
Appendix G
Water Level Elevations
4400
4410
4420
4430
4440
4450
6/16/2020 9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-14D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 21 of 68
Appendix G
Water Level Elevations
4390
4400
4410
4420
4430
4440
12/19/2018 3/5/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-14S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 22 of 68
Appendix G
Water Level Elevations
4280
4290
4300
4310
4320
4330
12/19/2018 3/5/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-15D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 23 of 68
Appendix G
Water Level Elevations
4280
4290
4300
4310
4320
4330
12/19/2018 12/4/2019 6/16/2020 9/28/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-15S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 24 of 68
Appendix G
Water Level Elevations
4430
4440
4450
4460
4470
4480
12/19/2018 3/4/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-16D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 25 of 68
Appendix G
Water Level Elevations
4420
4430
4440
4450
4460
4470
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-16S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 26 of 68
Appendix G
Water Level Elevations
4440
4450
4460
4470
4480
4490
12/19/2018 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-17D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 27 of 68
Appendix G
Water Level Elevations
4440
4450
4460
4470
4480
4490
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-17S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 28 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-18: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 29 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/19/2018 12/4/2019 6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-19: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 30 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
11/30/2018 3/5/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-20D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 31 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
11/30/2018 3/5/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-20S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 32 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/19/2018 3/4/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-21: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 33 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
4530
12/19/2018 3/4/2019 12/4/2019 6/16/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-22: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 34 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/16/2020 9/22/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-23A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 35 of 68
Appendix G
Water Level Elevations
4490
4500
4510
4520
4530
4540
6/16/2020 9/22/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-23B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 36 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
6/16/2020 9/22/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-23C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 37 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-24: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 38 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-25A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 39 of 68
Appendix G
Water Level Elevations
4490
4500
4510
4520
4530
4540
6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-25B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 40 of 68
Appendix G
Water Level Elevations
4480
4490
4500
4510
4520
4530
6/16/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-25C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 41 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/9/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-26A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 42 of 68
Appendix G
Water Level Elevations
4490
4500
4510
4520
4530
4540
6/9/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-26B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 43 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
6/9/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-26C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 44 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
6/9/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-26D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 45 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/16/2020 9/22/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-27: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 46 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
6/16/2020 9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-28: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 47 of 68
Appendix G
Water Level Elevations
4540
4550
4560
4570
4580
4590
7/20/2020 9/21/2020 12/8/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-29A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 48 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
7/20/2020 9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-29B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 49 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
7/20/2020 9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-29C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 50 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-30C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 51 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-30RA: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 52 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-30RB: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 53 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
7/20/2020 9/21/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-31A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 54 of 68
Appendix G
Water Level Elevations
4500
4510
4520
4530
4540
4550
7/20/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-31B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 55 of 68
Appendix G
Water Level Elevations
4490
4500
4510
4520
4530
4540
7/20/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-31C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 56 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-32A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 57 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-32B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 58 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
9/21/2020 12/8/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-32C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 59 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
7/20/2020 9/21/2020 12/7/2020
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34A: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 60 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
7/20/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34B: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 61 of 68
Appendix G
Water Level Elevations
4460
4470
4480
4490
4500
4510
7/20/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34C: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 62 of 68
Appendix G
Water Level Elevations
4470
4480
4490
4500
4510
4520
7/20/2020 9/21/2020 12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 63 of 68
Appendix G
Water Level Elevations
4360
4370
4380
4390
4400
4410
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-36: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 64 of 68
Appendix G
Water Level Elevations
4280
4290
4300
4310
4320
4330
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-37D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 65 of 68
Appendix G
Water Level Elevations
4300
4310
4320
4330
4340
4350
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-37S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 66 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-38D: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 67 of 68
Appendix G
Water Level Elevations
4450
4460
4470
4480
4490
4500
12/7/2020 3/15/2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-38S: Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 68 of 68
Appendix G
Transducer Water Level Elevations
4480
4485
4490
4495
4500
4505
4510
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-01D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 1 of 17
Appendix G
Transducer Water Level Elevations
4495
4500
4505
4510
4515
4520
4525
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-01S Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 2 of 17
Appendix G
Transducer Water Level Elevations
4500
4505
4510
4515
4520
4525
4530
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-02 Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 3 of 17
Appendix G
Transducer Water Level Elevations
4510
4515
4520
4525
4530
4535
4540
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-04 Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 4 of 17
Appendix G
Transducer Water Level Elevations
4515
4520
4525
4530
4535
4540
4545
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-05R Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 5 of 17
Appendix G
Transducer Water Level Elevations
4545
4550
4555
4560
4565
4570
4575
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-06 Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 6 of 17
Appendix G
Transducer Water Level Elevations
4455
4460
4465
4470
4475
4480
4485
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-13D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 7 of 17
Appendix G
Transducer Water Level Elevations
4395
4400
4405
4410
4415
4420
4425
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-14S Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 8 of 17
Appendix G
Transducer Water Level Elevations
4285
4290
4295
4300
4305
4310
4315
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-15D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 9 of 17
Appendix G
Transducer Water Level Elevations
4430
4435
4440
4445
4450
4455
4460
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-16D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 10 of 17
Appendix G
Transducer Water Level Elevations
4460
4465
4470
4475
4480
4485
4490
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-20D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 11 of 17
Appendix G
Transducer Water Level Elevations
4460
4465
4470
4475
4480
4485
4490
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-20S Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 12 of 17
Appendix G
Transducer Water Level Elevations
4485
4490
4495
4500
4505
4510
4515
01/01/17 01/01/18 01/02/19 01/02/20 01/02/21
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-21 Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 13 of 17
Appendix G
Transducer Water Level Elevations
4485
4490
4495
4500
4505
4510
4515
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-22 Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 14 of 17
Appendix G
Transducer Water Level Elevations
4475
4480
4485
4490
4495
4500
4505
01/01/17 01/01/18 01/02/19 01/02/20 01/02/21
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34B Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 15 of 17
Appendix G
Transducer Water Level Elevations
4475
4480
4485
4490
4495
4500
4505
Jan-2017 Jan-2018 Jan-2019 Jan-2020 Jan-2021
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34C Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 16 of 17
Appendix G
Transducer Water Level Elevations
4475
4480
4485
4490
4495
4500
4505
01/01/17 01/01/18 01/02/19 01/02/20 01/02/21
Wa
t
e
r

L
e
v
e
l

E
l
e
v
a
t
i
o
n

(
f
t

a
m
s
l
)
MW-34D Water Level Elevations
OU1 Remedial Investigation Report
700 South 1600 East PCE Plume
Salt Lake City, Utah Page 17 of 17