NC0004987_4_FINAL_CSA Supplement 2_Marshall_Appendix A_20160804

BORING NUMBER AI-10SB
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 2
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/1/16 COMPLETED 3/1/16 GROUND ELEVATION HOLE SIZE(S) 4 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY T. Campbell CHECKED BY DATE/TIME ---
NOTES DATE/TIME ---
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DESCRIPTION
REMARKS
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See AL -ID for lithology
Soil boring advanced for purpose of collecting
soil sample
5
Soil sample AL-ID-SB-34 collected for arsenic,
10
15
20
3/1/16 11:20 am
25

440 S. Church Street, Suite 900
Charlotte, NC2802-2075
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CLIENT Duke Energy
PROJECT NUMBER 269374
BORING NUMBER AI-10SB
PAGE 2OF2
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT LOCATION Terrell. NC
W j
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DESCRIPTION
REMARKS
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See AL -ID for lithology (continued)
30
Bottom of borehole at 34.0 feet.
Soil boring cored and grouted to surface
AL-1S GW: 35.6' bgs, 3/1/16 9:30

BORING NUMBER BG-1 BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 4
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 4/12/16 COMPLETED 4/18/16 GROUND ELEVATION HOLE SIZE(S) 10 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME 4/18/2016 8:45:00 AM 13.70 ft
NOTES 1 DATE/TIME ---
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DESCRIPTION
REMARKS
° W
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See BG-1 D for Lithology 0-41'
Advance sonic 10 3/4" from surface
5
10
15
20
25

BORING NUMBER BG-1 BR
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 2 OF 4
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
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Wp v
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DESCRIPTION
REMARKS
° W
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25
See BG-1 D for Lithology 0-41' (continued)
30
41.0': 6" PVC casing installed grouted to
35
40
BIOTITE GNEISS, strong, greenish black (10G
2.5/1), gneissic, banded, medium to fine grained
surface 4/14116 16:00
41-51': Fresh, core broken along foliation with
sparse Fe staining in rubble zones
45
RC-1
63
50

BORING NUMBER BG-1 BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 3 OF 4
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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to W
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DESCRIPTION
REMARKS
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BIOTITE GNEISS, strong, greenish black (10G
2.5/1), gneissic, banded, medium to fine grained
(continued)
1-71': Moderately decomposed along foliation
planes throughout run. Little to no Fe staining.
Very broken, interpreted as mechanical due to
lack of staining and to foliation
51-58.5': Core loss likely throughout
55
Foliation: Dip 10-300, wavy in places
RC-2
60
60
65
RC-3
97
70
71-81': Fresh, moderately to intensely
mechanically, broken
75

BORING NUMBER BG-1 BR
440 S. Church Street,
Charlotte, NC28202-2075
Suite 900
PAGE
4 OF 4
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CLIENT Duke Energy
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374
PROJECT LOCATION Terrell, NC
W j
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W
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Wp v
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DESCRIPTION
REMARKS
° W
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(n Z
W
75
BIOTITE GNEISS, strong, greenish black (10G
2.5/1), gneissic, banded, medium to fine grained
RC-4
89
(continued)
80
9.3': Joint, Dip 900, tight to part open, trace
Fe staining
81.3': Joint, Dip 80-901, unknown aperture,
trace Fe staining
From 82.0': Moderate to strong, black (2.5N)
81-90.0': Falling head test (-1"/min. over 15
min.)
82-87.5': Cone loss likely - change in foliation
dip and color
85
RC-5
54
from 87.5': Foliation, Dip 601
90
pH=6.5 after bentonite added, before grouting
4/18/16
Bottom of borehole at 91.0 feet.

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 1 — BG-1 BR: Box 1 of 4 Depth: 41.0' - 58.5' Date: 04/16/16
Photo 2 — BG-1 BR: Box 2 of 4 Depth: 58.5' - 69.0' Date: 04/16/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 3 — BG-1 BR: Box 3 of 4 Depth: 69.0' - 80.2' Date: 04/16/16
Photo 4 — BG-1 BR: Box 4 of 4 Depth: 80.2' - 91.0' Date: 04/16/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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BORING NUMBER BG-3BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 5
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/31/16 COMPLETED 4/5/16 GROUND ELEVATION HOLE SIZE(S) 10, 8, 5 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME ---
NOTES DATE/TIME ---
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DESCRIPTION
REMARKS
° W
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See BG-3S for Lithology 0-39.7'
Sonic 4 3/4 x 6" advanced from surface. No
samples collected 0-50'
5
10
15
20
25

BORING NUMBER BG-3BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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REMARKS
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25
30
See BG-3D for Lithology 39.7-70.3'
35
40
45
50

BORING NUMBER BG-3BR
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 3 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
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0
W
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LU v
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DESCRIPTION
REMARKS
° W
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50
BIOTITE GNEISS, medium to strong, greenish
Driller note: felt like rock @ 50.0'
black (10Y 2.5/1), gneissic to schistose, foliated,
fine to medium grained
Minor scattered Fe staining throughout
SD-1
80
50-60': Sample collected to verify presence of
55
competent rock
55-60': Exceeds competent rock requirements
(85% Rec, 50% RQD): Begin ream 10 3/4"
from 0-60'; advance 8" barrel to 61.0'
SD-2
88
60
60.0': 6" PVC installed - grouted to surface
4/1/16 15:00
Advance 4" barrel from 61'
From 61.0' Fractures interpreted as
mechanical, fresh, foliation: 30°, Fe staining
RC-1
73
becoming trace with depth
65
65.6-66.0', 69.5-70.0': Felsic Bands, strong, white
65.7': Joint, Dip 750, tight to partially open, Fe
(8.5/N)
stained
RC-2
82
70
70-75.0': As above, with abundant strong felsic
bands
70.9': Joints, dip 700, tight, trace Fe stained to
fresh
RC-3
100
73.9-75.0': 1 joint, dip 700+, tight to open,
75
fresh, recovered as rubble

BORING NUMBER BG-3BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 4 OF 5
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
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0
W
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Wp v
d 0
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m O a
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DESCRIPTION
REMARKS
° W
UZ
w
W
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(n Z
of
75
BIOTITE GNEISS, medium to strong, greenish
5-85.0': Moderately to intensely fractured -
black (10Y 2.5/1), gneissic to schistose, foliated,
interpreted as mechanical - lack of evidence
fine to medium grained (continued)
76.2'-joint, dip 50°, unknown aperture, Fe
mineralized and stained
RC-4
$6
80
RC-5
92
85
from 87.0': Trace garnet
RC-6
88
87.5-87.9': 4+ joints, dip 20-401, tight to open,
Fe stained, mineralized
88.0': joint, dip 500, tight, pyrite mineralized
(dip cross -foliation)
90
91-91.5': Fe staining parallel to foliation in
felsic band
91.9': Joint, dip 400, tight to part open, Fe
RC-7
68
stained
92.5': Joint, dip 500, tight Fe stained, parallel to
foliation
93.2': Joint, dip 200, unknown aperture, Fe
mineralized
95
97.5-98.5': 2+ joints, dip 901, tight to partially
RC-8
96
open, Fe stained
100

440 S. Church Street, Suite 900
Charlotte, NC2875
Phone:[phone]
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CLIENT Duke Energy
PROJECT NUMBER 269374
BORING NUMBER BG-3BR
PAGE 5OF5
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT LOCATION Terrell. NC
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REMARKS
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100
BIOTITE GNEISS, medium to strong, greenish
Driller Note: Easier drilling from 100'
black (10Y 2.5/1), gneissic to schistose, foliated,
-
fine to medium grained (continued)
From 100.0': As above
- 91 1 1 40
105
105-110.0': Moderately decomposed
106.3': Joint, dip 700, unknown aperture, Fe
- stained
R 0 78 107.2': Joint, dip 700, tight, Fe stained, calcite
(?) mineralization
108.0': Joint, dip 80-900, unknown aperture,
intensely Fe stained, and mineralized
108.6': Joint, dip 400, parallel to foliation,
110 unknown aperture, intensely Fe stained and
RC - mineralized
11 40—F—] pH before adding grout=6.5 @ 11:00 am
Bottom of borehole at 111.0 feet.

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 1 — BG-3BR: Box 1 of 4 Depth: 61.0' - 73.0' Date: 04/04/16
Photo 2 — BG-3BR: Box 2 of 4 Depth: 73.0'-83.5' Date: 04/04/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 3 — BG-3BR: Box 3 of 4 Depth: 83.5' - 96.2' Date: 04/04/16
Photo 4 — BG-3BR: Box 4 of 4 Depth: 96.2' - 111.0' Date: 04/04/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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BORING NUMBER GWA-10S
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 1 OF 1
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/29116 COMPLETED 4/2/16 GROUND ELEVATION HOLE SIZE(S) 6 inches
DRILLING CONTRACTOR Cascade Drilling, L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY 1 DATE/TIME 3/30/2016 9:35:00 AM 9.90 ft
NOTES 1 DATE/TIME --
W j
c
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0
W
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Wp v
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DESCRIPTION
REMARKS
° W
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0
See GWA-10D for Lithology
Borehole advanced for purpose of installing
monitoring well EB-GWA10 collected 3/29/16
11:45 am
Advanced 4 3/4", sonic 0-15' dry without
casing in order to determine water level = 9.8'
5
10
15
20
Bottom of borehole at 21.0 feet.

BORING NUMBER GWA-10D
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 1 OF 5
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/10/16 COMPLETED 3/24/16 GROUND ELEVATION HOLE SIZE(S) 6, 10, 5 inches
DRILLING CONTRACTOR Cascade Drilling, L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY 1 DATE/TIME 3/1/1016 12:45:00 PM 9.00 ft after sitting 45 min. hole A- 20'
NOTES 1 DATE/TIME --
W j
c
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0
W
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Wp v
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DESCRIPTION
REMARKS
° W
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UZ
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03
QO
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of
0
(ML) SANDY SILT, red (2.5YR 4/6), low to
Sonic 46" tooling. All densities are estimated.
non -plastic, moist, cohesive, trace clay,
micaceous (SOIL)
SD - 1
34
— — — — — — — — — — — — — — — — —
0-2.5': Fe staining throughout
(ML) SANDY SILT, loose to medium dense, red
2.5': Fe staining, mottled
(2.5YR 4/6), mottled pale brown (10YR 6/3),
non -plastic, moist, noncohesive, micaceous
(SOIL)
5
--------------------
(ML) SANDY SILT, loose to medium dense, red
(2.5YR 4/6), brown (7.5YR 5/4) and black (7.5YR
SD - 2
65
2.511), non -plastic, moist to wet, noncohesive,
micaceous, relic foliation (SAPROLITE)
10
From 10.0': Brown (10YR 5/3), Wet
-10' water level per core
SD-3
52
13.5': contact transitional over -1"
(SW) SAND WITH GRAVEL, medium dense to
dense, yellowish brown (10YR 5/4), non -plastic,
15
wet to moist, non -cohesive, micaceous, relic
granular rock texture, trace silt (SAPROLITE)
Drilled hole dry without advancing casing to 15'
caved to 9' with water at -7.5' (Per tag tape -
no no water level indicator @ rig)
SD-4
65
20
From 21': Brown (10YR 4/3), moist
SD-5
60
25

BORING NUMBER GWA-10D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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DESCRIPTION
REMARKS
° W
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0-
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(SW) SAND WITH GRAVEL, medium dense to
Driller note: hole tight from 25.0'
dense, yellowish brown (10YR 5/4), non -plastic,
wet to moist, non -cohesive, micaceous, relic
granular rock texture, trace silt (SAPROLITE)
(continued)
SD-6
65
From 28.5': Dense
30
From 30.0': Mottled yellowish red (5YR 5/8)
From 30.0': Fe staining
SD-7
63
35
From 37.0': Gravel and mottling becoming trace
SD-8
61
40
From 40.0': very difficult drilling
From 41.5': Wet
SD-9
60
From 43.0': Increasing gravel with depth, dense to
very dense
45
SD-
58
10
from 49.1: Light brownish gray (10YR 6/2), dry,
50
with gravel of weathered biotite gneiss

BORING NUMBER GWA-10D
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 3 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
c
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0
W
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Wv
d 0
>
m O a
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Y
DESCRIPTION
REMARKS
° W
p
UZ
w
W
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QO
cn Z
of
50
(SW) SAND WITH GRAVEL, medium dense to
dense, yellowish brown (10YR 5/4), non -plastic,
wet to moist, non -cohesive, micaceous, relic
granular rock texture, trace silt (SAPROLITE)
(continued)
SD -
55
from 51': Dark grayish brown (10YR 4/2), moist
11
55
- - - - - - - - - - - - - - - - - - - -
BIOTITE GNEISS, moderate weak, black (10YR
2/1) and white (10YR 8/1), gneissic, massive,
From 54.5': Minor Fe staining and oxidized
pyrite cubes
coarse grained, weak foliation defined by mineral
SC-12: Moderate to weak rock recovered as
alignment
pulverized rock with zones of saprolite
From 55.0': Advance 7" core head, no casing
(hole heaving) to 64.0'
SD -
12
53
57.5-59.0': SAPROLITE as above
59.0': Weak
60
SC-13: Extremely weak/weathered rock -
almost saprolite. Not counted toward rock
61-62.0': Strong felsic bands
recovery
SD -
13
47
From 64.0': Extremely weak, friable, saprolitic
65
SC-14 to -16: Extremely weak/weathered, 0%
rock recovery, some Fe staining
From 66.0': Dry to slightly moist
SD -
66
14
Very difficult to advance Sonic 6" casing
70
Driller note: Lost circulation 70-75'
SD -
7
7
15
L75

BORING NUMBER GWA-10D
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 4 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
c
o
0
W
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Wv
d 0
>
m O a
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0 O
Y
DESCRIPTION
REMARKS
° W
p
UZ
w
W
U
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o3
QO
cn Z
of
75
BIOTITE GNEISS, moderate weak, black (10YR
2/1) and white (10YR 8/1), gneissic, massive,
coarse grained, weak foliation defined by mineral
alignment (continued)
SD-
16
64
80
SD-
82
17
85
From 84.5': Weak to strong
From 84.5': Fresh to slightly decomposed,
from 85.0': fractured, Fe stained
_
86-89.3': Recovered as pulverized rock with
trace gravel of biotite gneiss
SD-
18
62
90
90-90.4': Recovered as pulverized rock with
Gravel of Biotite Gneiss
From 91.7': Medium to strong
From 91.7': Minor Fe Staining, foliation 500
SD-
3.E
9
19
92.6': Joint, Dip 301, partially open, Fe stained,
intersecting
92.7': Joint, Dip 501, partially open, Fe stained
94.0': 6" PVC casing installed - grouted to
95
From 95.0': Weak to Very Weak
surface 3/18/16 @ 15:50
RC-1: Recovered as well graded sand, dark
greenish gray (10Y 4/1)
RC-1
100

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Charlotte, NC2875
Phone:[phone]
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CLIENT Duke Energy
PROJECT NUMBER 269374
BORING NUMBER GWA-10D
PAGE 5OF5
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT LOCATION Terrell. NC
W j
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0
2
W
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>-
p
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DESCRIPTION
p
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0
100
BIOTITE GNEISS, moderate weak, black (10YR
2/1) and white (10YR 8/1), gneissic, massive,
-
coarse grained, weak foliation defined by mineral
alignment (continued)
RC-
RC - 31 I 45
RC - 41 1100
Z
z
K -
REMARKS °W
03
2
02-110.0': Very broken - interpreted as
mostly mechanical due to lack of staining and
angle
103.5-104.0': Recovered as pulverized rock
and gravel
110-114.3': Moderately broken - interpreted as
mechanical
115 114.3-115.0': Brecciated, very weak 114.3-115': Fault breccia -silty sand matrix,
uncemented, gouge -like, Dark Green Gray (5
GY 4/1), clear evidence of being cored in place
_ 115-117.4': Likely zone of core loss - possibly
continued breccia
RC - 5 52 117.4-119', 119.7-120': Moderate Fe staining
throughout
pH of water out of well after bentonite and
120 before grout = 4.5 (litmus paper suspect DI :.
Bottom of borehole at 120.0 feet. I water = 4.0"

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 3 — GWA-10D: Sample SC-3 Depth: 10.0' - 15.0' Date: 03/10/16
Photo 4 — GWA-10D: Sample SC-4 Depth: 15.0' - 20.0' Date: 02/10/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 7 — GWA-10D: Sample SC-7 Depth: 30.0' - 35.0' Date: 03/10/16
Photo 8 — GWA-10D: Sample SC-8 Depth: 35.0' - 40.0' Date: 03/10/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ��
Appendix A, Sample Photographs
Photo 9 — GWA-10D: Sample SC-9
Depth: 40.0' - 45.0' Date: 03/10/16
Photo 10 — GWA-1OD: Sample SC-10 Depth: 45.0' - 50.0' Date: 03/10/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Depth: 50.0' - 55.0'
Date: 03/11 /16
Photo 11 — GWA-10D: Sample SC-11
' — t low. -"W%�.
Photo 12 — GWA-1OD: Sample SC-12 Depth: 55.0' - 60.0' Date: 03/12/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 13 — GWA-1OD: Sample SC-13 Depth: 60.0' - 62.0' Date: 03/12/16
Photo 14 — GWA-1OD: Sample SC-13 Depth: 62.0' - 64.0' Date: 03/12/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 15 — GWA-10D: Sample SC-14 Depth: 64.0' - 70.0' Date: 03/14/16
Photo 16 — GWA-1OD: Sample SC-15 Depth: 70.0' - 75.0' Date: 03/12/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
"I
1r vrn
Photo 17 — GWA-1OD: Sample SC-16 Depth: 75.0' - 80.0' Date: 03/14/16
r
CAAASWALL STEAMMTION
goaanm+ (� wA-I�D
_ -_ _ _ - __ � .-ri � 9€RrN FD'-S5' 11 cs..�.. ��. '�g5•
DAT Da'rE
Photo 18 — GWA-1OD: Sample SC-17 Depth: 80.0' - 85.0' Date: 03/15/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 19 - GWA-1OD: Sample SC-18 Depth: 85.0' - 90.0' Date: 03/15/16
POPP-
4
3
Photo 20 - GWA-1OD: Sample SC-19 Depth: 90.0' - 95.0' Date: 03/16/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment ���
Appendix A, Sample Photographs
Photo 21 — GWA-10D: Box 1 of 2 Depth: 95.0' - 115.0' Date: 03/22/16
Photo 22 — GWA-10D: Box 2 of 2 Depth: 115.0'-120.0' Date: 03/24/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
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BORING NUMBER GWA-11 S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 4
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/9/16 COMPLETED 3/11/16 GROUND ELEVATION HOLE SIZE(S) 6 inches
DRILLING CONTRACTOR Cascade Drilling, L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY T. Campbell CHECKED BY AT DATE/TIME 3/17/2016 10:15:00 AM 43.50 ft
NOTES 1 DATE/TIME ---
LLJ �
c
o
e
=
}
HW
to w
H�
}
Y�
p
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w-1
0
-, D Q
>
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DESCRIPTION
REMARKS
° W
p
dU
m0>
O
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U
o3
�0
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w
w
O
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0
0
See GWA-11 D for Lithology
5
10
15
20
25

BORING NUMBER GWA-11 S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 4
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W �
c
o
e
=
}
HW
to W
H�
}
Y�
p
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w-j
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>
0 >
DESCRIPTION
REMARKS
° W
p
a0
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0
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0
25
See GWA-11 D for Lithology (continued)
30
r:.
35
40
45
50

BORING NUMBER GWA-11 S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 3 OF 4
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W �
c
o
e
=
}
HW
to W
H�
}
Y�
p
z
w-j
� Q
>
0 >
DESCRIPTION
REMARKS
° W
p
a0
�b
m0>
UZ
0
W0
U
o3
O
�
W
�
0
50
See GWA-11 D for Lithology (continued)
Perched water at GWA-11 D is absent at
GWA-11S
55
60
Drilled to 76 ft, no evident water. Wait for
65
70
water to equilibrate prior to installing well
2" PVC well installed 3/11/16, screen
39.8-54.8 ft bgs
75

BORING NUMBER GWA-11 S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075
PAGE 4 OF 4
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W �
c
o
e
H
}
HW
to W
�ZJ
Y�
p
C)
z
z�
w
W
CL
-j� Q
j
p>
DESCRIPTION
REMARKS
° W
p
m0>
UZ
O
wO
w
U
o3:
Q O
w
O
75
See GWA-11 D for LitholWy (continued)
Bottom of borehole at 76.0 feet.

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 6
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 3/3/16 COMPLETED 3/9/16 GROUND ELEVATION HOLE SIZE(S) 10, 5 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY T. Campbell CHECKED BY DATE/TIME 3/17/2016 10:15:00 AM 44.60 ft
NOTES 10": 0-103', 5": 103-126' 1 DATE/TIME ---
LL j
a
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rt
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3: H -1
}
>
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DESCRIPTION
REMARKS
° W
0
aU
m0>
n0
E0
03
g0
UZ
w
w
O
� Z
0
(CL) CLAY, yellowish red (5YR 5/6), high
plasticity, dry, cohesive, massive texture, trace
fine sand (SOIL)
Truck -mounted sonic rig. 4x6" cored from
surface
SD-1
60
All contacts are approximate
--------------------
(ML) SILT, mottled pink (7.5YR 7/4) and white
5
(7.5YR 9.5/1), non -plastic, moist, cohesive, trace
kaolin and Mn nodules, trace fine sand
(SAPROLITE)
10
Below 10 ft: sand, fine to coarse, few lightly
cemented micaceous zones, friable
SD-2
120
15
20
SD-3
92
22.0': As above except olive (5Y 4/3), sand and
Subdued relic structure
mica absent, dry
25

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rt
U)
3: H
}
>
Y
o
ww
w 0
� zj Q
O w
p>
DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
U
o3
g�
UZ
w
w
O
0
U)z0
af
D
25
(ML) SILT, mottled pink (7.5YR 7/4) and white
(7.5YR 9.5/1), non -plastic, moist, cohesive, trace
kaolin and Mn nodules, trace fine sand
(SAPROLITE) (continued)
26.0': As above except kaolin layers absent grading
to olive (5Y 5/3)
28.0': As above except very pale brown (10YR 7/4)
30
Relic structure not evident
SD-4
120
35
Moist
37.0': As above except yellowish brown (10YR 5/6),
trace Mn veins
40
SD-5
120
43.0': As above except dark brown (10YR 3/6) with
Mn nodules, dry, micaceous
Evident relic structure
45
Driller reports saturated—47-57', then dry
based on drilling conditions
50

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 3 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
c
o
0
W
z
LU v
d 0
>
m O a
O
0 O
Y
DESCRIPTION
REMARKS
° W
UZ
w
W
U
O
o3
QO
cn Z
of
50
SD-6
79
(ML) SILT, mottled pink (7.5YR 7/4) and white
(7.5YR 9.5/1), non -plastic, moist, cohesive, trace
kaolin and Mn nodules, trace fine sand
Estimated depth
(SAPROLITE) (continued)
kOA'_As above except few thin clay laminae _ f
(ML) SANDY SILT, pale brown (2.5Y 7/4),
non -plastic, wet, cohesive, fine to medium grained
Sample is soupy, very loose, structure lost
55
as above, moist
Perched water zone
58.0': As above, except very dark gray (5Y 2.5/1),
non -plastic, dry cohesive, fine grained
60
SD-7
120
63.0': As above except with friable cemented
Can be easily crushed with hands, some
laminae
nodules show relic diorite structure.
65
66.0': As above except cement is harder, dry
Can be broken with hammer, sample is dusty,
very dry
70
SD-8
120
73.0': As above except light yellowish brown (10YR
6/4), weakly, cemented, sand is fine to coarse
75

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 4 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rr
U)
3: H
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w 0
� zj Q
O w
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DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
U
g�
UZ
w
w
O
o3
0
U) Z
a
75
(ML) SANDY SILT, pale brown (2.5Y 7/4),
non -plastic, wet, cohesive, fine to medium grained
(continued)
80
SD-9
120
Most cemented nodules can be broken with
hands
84.0': As above except weathered rock fragments
85
more abundant
Meta -quartz diorite fragments tumbled in bag,
from between 90 and 96': open fractures, Mn
and Fe staining
90
SD-
120
10
Gradational contact
(SM) SILTY SAND WITH GRAVEL, very pale
brown (10YR 7/4), non -plastic, dry, non -cohesive,
few fragments of meta -quartz diorite to 2" thick
95
Core loss assumed to be from 96-101' in
unconsolidated to partially consolidated zone
SD-
24
100
11

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 5 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_Uj
rt
U)
3: H
}
>
Y
o
ww
w 0
� zj Q
O w
p>
DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
U
o3
g�
UZ
w
w
O
0
U)ZO
af
D
100
Fresh to slightly decomposed, very intensely to
META -QUARTZ DIORITE, moderate to strong,
dark olive gray (5Y 3/2) and white (9/N), gneissic
intensely fractured, open, 0-90°, Fe staining to
texture
1" of fracture surfaces, epidote mineralization,
Mn staining
103.0': As above except black (2.5Y 2.5/1) and
Reamed to 10", 6" PVC casing installed to
white (9/N), common oxidation zones strong
103.0 ft bgs on 3/7/16, grouted to surface. 4"
brown (7.5YR 5/8)
sonic core started at 103.0 ft 3/8/16.
RC-1
80
105
103-106.0': Very intensely to intensely
fractured, open, 0-90°, slightly, decomposed,
Fe staining.
110
110.0': Loose, fine to coarse sand recovered
Lost circulation at 110'
110.0-116': indeterminate depth(s)
RC-2
65
111.0': Moderately fractured (mostly
mechanical)
Circulation not recovered to total depth
All RQDs estimated
115
2" well installed on 3/9/16
i ..
Driller reports soft zones, rod drops between
110 and 116', subhorizontal fractures may be
. ;.•
117.0': As above with pale red (1 OR 6/4)
mechanical, few healed fractures with Mn
staining
120
RC-3
98
121.0': pale red absent
1225: Fracture, open, 301, quartz,
mineralization
124': Quartz vein, 1" thick, 201
125

BORING NUMBER GWA-11 D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075
PAGE 6 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374
PROJECT LOCATION Terrell, NC
W j
c
o
0
W
z
v
a
O
DESCRIPTION
REMARKS
° W
Wp
d 0
m O >
O
0
Y
U
o3
QO
UZ
w
w
O
(n Z
w
125
Bottom of borehole at 126.0 feet.

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
0
Photo 1 - GWA-11D: Sample SC-1 Depth: 2.0' Date: 03/03/16
i� ��
Ei.tERGY
MAR64AL.. STEAM ISTAT'OtQ
UW I h! c- -9- &WA- 110
VATS:
(3AU3/1 V I -
D�PT�r
5 FT
Cm2?PJG
M15-TWS): '500 G 4"
IQui�!
SC-- 0 -to yr J
4
Photo 2 - GWA-11 D: Sample SC-1 Depth: 5.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 3 - GWA-11 D: Sample SC-2 Depth: 10.0' Date: 03/03/16
Photo 4 - GWA-11D: Sample SC-2 Depth: 15.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
�i1�G G-1f114— i1Q
DEPTH Z �7 r
C�a,rc- METHS -a: fioitc. 4"
Rear .� �C'-- 3 (Its— 2 ►�, FT�
Photo 5 - GWA-11 D: Sample SC-3 Depth: 20.0' Date: 03/03/16
v �� q.lE,ICGY
MACSOAC-L VFAM •STATICW
poRi4G -K- G-vjA- 1iD
VATC : CNO--3/I +,
DEPTH 23 F--(
CORWC M T 0.- soots. 4"
7-49 Ff O. RSO
Photo 6 - GWA-11D: Sample SC-3 Depth: 23.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
ja uKe, E2jE zG'I(
Photo 7 - GWA-11D: Sample SC-3 Depth: 27.0' Date: 03/03/16
Photo 8 - GWA-11D: Sample SC-4 Depth: 30.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
MAaES+�f�41pL. 5'rEf�tM STAT+��
P-.cR i a.I G- IL- G-WA- 1 t D
DATE:
DEPTH 3
CORIOjC- METI+;;O : SOQ %G 4"
Rus t ,-* 5c- (ZG,— 3ca F
Photo 9 - GWA-11D: Sample SC-4
F
Depth:35.0' Date:03/03/16
MA�sr-�hc_L 5'�4M iTATi��
V5ORIavG *- GWA- tifa
CPATS : iV J/031r 1,
o 4o F r
CmRi�.lC mvrHt;v-' 5oQtic- 4
RLQ * 5G- 5 (-%— 4 6 F
Photo 10 - GWA-11 D: Sample SC-5 Depth: 40.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 11 - GWA-11 D: Sample SC-5 Depth: 45.0' Date: 03/03/16
Photo 12 - GWA-11 D: Sample SC-6 Depth: 50.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 13 - GWA-11 D: Sample SC-7 Depth: 55.0' Date: 03/03/16
Photo 14 - GWA-11 D: Sample SC-7 Depth: 60.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
:MAI��+tiFht-L `�'rEfkM S'�iAT�mu
ftW i4 G -* G-WA- 11 [)
DEPTH. &5 �
C0121.jc me-r4-o: 9ootc 4
Rued �5-- -1 (55 - G&
Photo 15 - GWA-11 D: Sample SC-7 Depth: 65.0' Date: 03/03/16
Photo 16 - GWA-11 D: Sample SC-8 Depth: 70.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 17 - GWA-11 D: Sample SC-8 Depth: 75.0' Date: 03/03/16
Photo 18 - GWA-11 D: Sample SC-9 Depth: 80.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
POK 1 N Cr -W L—A"A—
fl,�� : 03/04/1(,.
coewC- merles _ *email %c fir'-
Photo 19 - GWA-11 D: Sample SC-10 Depth: 90.0' Date: 03/03/16
MAR�Ff�4t-t� S'�EA+� STAr�+ar�
IFJC, -K- GWA— p
DePTF4 Cj'5 1
COR)OG me-lrl�
RL.W .-* 45r- - io
Photo 20 - GWA-11 D: Sample SC-10 Depth: 95.0' Date: 03/03/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment L—"%-1
Appendix A, Sample Photographs
Photo 21 - GWA-11 D: Sample SC-11 Depth: 101.0' - 103.0' Date: 03/03/16
Photo 22 - GWA-11 D: Box 1 of 2 Depth: 103.0' - 116.4' Date: 03/08/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Wi E+1iVC-Y- MA09VALL 4EfwFR� GS/. Vao 15c/.
Cy. AOOrteNUa- M5pL1'�T
GWh-=TD -
��tlE - -
6xZx2
Photo 23 - GWA-11 D: Box 2 of 2 Depth: 116.4' - 126.0' Date: 03/08/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

BORING NUMBER GWA-12S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 2
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 5/24/16 COMPLETED 5/24/16 GROUND ELEVATION HOLE SIZE(S) 7 inches
DRILLING CONTRACTOR Cascade Drilling, L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME 5/26/2016 7:40:00 AM 13.30 ft
NOTES 1 DATE/TIME ---
az
_
~W
U) w
r
p
z
ww
-1 00
-j D Q
j
p>
DESCRIPTION
REMARKS
° W
p
dU
g0
m0�
UZ
0
�0
U
o3
U)O
w
Lu
0
0
See GWA-12D for Lithology
5
r:.
10
15
Boring terminated at 25.6', screened interval
20
set at 10'-25', monitoring well installed 5/24/16
25

BORING NUMBER GWA-12S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075
PAGE 2 OF 2
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374
PROJECT LOCATION Terrell, NC
W j
c
o
0
W
z
v
a
O
DESCRIPTION
REMARKS
° W
Wp
d 0
m O >
O
0
Y
U
o3
UZ
w
W
O
QO
cn Z
w
25
Bottom of borehole at 25.6 feet.

BORING NUMBER GWA-12D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 5
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 5/3/16 COMPLETED 5/13/16 GROUND ELEVATION HOLE SIZE(S) 11, 7, 5 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME 5/12/2016 7:50:00 AM 14.40 ft
NOTES 1 DATE/TIME ---
LL j
a
C
o
0
_Lu
rt
U)
3: H -1
}
>
Y 0�
o
ww
w o
zj Q
O w
0>
DESCRIPTION
REMARKS
° W
0
aU
m0>
n0
E0
03
g0
UZ
w
w
O
� Z
of
0
(CL) CLAY WITH SAND, soft, dark yellowish
Hole Sizes:
brown (10YR 3/6), low plasticity, moist, cohesive
11" 0'-78'
(SOIL)
5" 78'-109'
Continued: yellowish red (5YR 4/6)
Borehole advanced with sonic drilling method,
densities are estimated
0'-8' Roots
0'-20' Fe staining throughout
(ML) SANDY SILT, soft, red (2.5YR 4/6), low
plasticity, moist to dry, cohesive, trace clay (SOIL)
SD-1
82
5
Continued: wet
10
SD-2
103
Continued: moist
15
Continued: intensely mottled
(SW-SM) SAND WITH SILT, medium dense,
yellowish brown (10YR 5/6), non -plastic, wet,
non -cohesive, micaceous, distinct relict foliation,
trace coarse quartz gravel (SAPROLITE)
20
20' Fe staining less abundant
(SP-SM) SAND WITH SILT, medium dense, dark
yellowish brown (10YR 4/4), non -plastic, wet,
non -cohesive, micaceous, distinct relict foliation
(SAPROLITE)
SD-3
79
25

BORING NUMBER GWA-12D
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 2 OF 5
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
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Wp v
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DESCRIPTION
REMARKS
° W
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25
(SP-SM) SAND WITH SILT, medium dense, dark
yellowish brown (10YR 4/4), non -plastic, wet,
non -cohesive, micaceous, distinct relict foliation
(SAPROLITE) (continued)
SD-4
109
30
35
36' Slight Fe staining
(SW) SAND, medium dense, dark yellowish
brown (10YR 3/6), non -plastic, wet, non -cohesive,
micaceous, granular tedure and relict foliation
(SAPROLITE)
40
SD-5
120
45
(SP-SM) SAND WITH SILT, medium dense,
grayish brown (10YR 4/2), non -plastic, moist,
non -cohesive, fine sand, micaceous
(SAPROLITE)
47.5'-48' Relict quartz veins recovered as
coarse quartz sand and kaolin
L
Continued: Trace coarse sand
49'-49.5' Relict quartz veins recovered as
coarse quartz sand and kaolin

BORING NUMBER GWA-12D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 3 OF 5
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
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DESCRIPTION
REMARKS
° W
0
0-
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a
50
(SP-SM) SAND WITH SILT, medium dense,
grayish brown (10YR 4/2), non -plastic, moist,
non -cohesive, micaceous, trace coarse sand
(SAPROLITE)
SD-6
102
55
Continued: Contains coarse gravel sized clasts of
Biotite Gneiss, weak to moderate, very dark brown
(10YR 2/2), schistose, foliated
60
60.5'-68' Recovered as mechanically
BIOTITE GNEISS, weak, reddish gray (5YR 5/2),
white (9.5N), pale olive (10Y 6/4), schistose,
pulverized rock fragments, highly weathered
foliated, friable, (WEATHERED ROCK)
SD-7
103
65
Continued: reddish gray (5YR 5/2), olive gray (5Y
68'-75' Weathered to residual soil between thin
4/2), white (9.5N)
intervals of friable highly weathered rock,
mottled Fe staining
70
SD-8
38
75

BORING NUMBER GWA-12D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 4 OF 5
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
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DESCRIPTION
REMARKS
° W
0
aU
m0><no
a�O
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o3
g�
UZ
w
w
O
0
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a
75
BIOTITE GNEISS, strong to moderate, white
5' Fresh
(8N), black (2.5N), light greenish gray (5GY 7/1),
massive, foliated, trace garnets (WEATHERED
ROCK)
Continued: schistose, abundant pyrite, epidote, and
kyanite
78' 6" PVC casing installed and grouted to
Continued: Extremely weak to strong
surface 5/10/16
80
82' Drilling noticeably slower
RC-1
56
RC-1 Recovered as large intervals of
completely altered rock and residual soil with
thin zones of medium strong rock
85
78'-86.5' Core loss likely scattered throughout
run; Saturated residual soil on mechanical
breaks along foliation planes
89' 2 Joints, dip 01, significant Fe staining
90
89'-97.2' Zone of significant core loss,
recovered as breccia/fault gouge and altered
rock
91' Gouge with healed joint, dip 80°
RC-2
43
i ..
95
Continued: Strong to weak, massive, garnetiferous
97'-101.3' 80%recovery, 80% ROD
97.2' Shear zone, dip 80°, healed, pyrite and
epidote mineralization
97.4' Joint, dip 901, tight, pyrite mineralization
100

440 S. Church Street, Suite 900
Charlotte, NC2802-2075
Phone:[phone]
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CLIENT Duke Energy
PROJECT NUMBER 269374
BORING NUMBER GWA-12D
PAGE 5OF5
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT LOCATION Terrell. NC
W j
c
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0
W
Wp v
d 0
>
m O a
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0 O
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DESCRIPTION
REMARKS
° W
UZ
w
W
U
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QO
100
BIOTITE GNEISS, strong to weak, white (8N),
black (2.5N), light greenish gray (5GY 7/1),
-
massive, garnetiferous (FRACTURED ROCK)
01.3'-107.5' Likely zone of core loss,
-
recovered —2.5' of weak, highly altered soft
rock, not counted in RQD; Sulfide rich,
garnetiferous
RC - 3I I 58
Milli
Bottom of borehole at 109.0 feet.
108' Shear zone, dip 650, healed, pyrite
mineralization —0.2" thick
pH measured at 6.5 after installation but prior
to grouting of well
Boring terminated at 109' BGS, screened
interval set at 88'-93', monitoring well installed
on 5/12/16 and grouted to surface on 5/13/16

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 1 — GWA-12D: Sample SC-1 Depth: 0.0' - 8.0' Date: 05/03/16
Photo 2 — GWA-12D: Sample SC-2 Depth: 8.0' - 18.0' Date: 05/09/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

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aid
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BUFAftk

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 5 — GWA-12D: Sample SC-5 Depth: 38.0' - 48.0' Date: 05/09/16
Photo 6 — GWA-12D: Sample SC-6 Depth: 48.0' - 58.0' Date: 05/09/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 7 — GWA-12D: Sample SC-7 Depth: 58.0' - 68.0' Date: 05/09/16
Photo 8 — GWA-12D: Sample SC-8 Depth: 68.0' - 75.0' Date: 05/09/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 9 — GWA-12D: Sample SC-8 Depth: 75.0'-78.0' Date: 05/09/16
Photo 10 — GWA-12D: Box 1 of 2 Depth: 78.0' - 98.4' Date: 05/11/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

Duke Energy Carolinas, LLC I Marshall Steam Station - CSA Groundwater Assessment
Appendix A, Sample Photographs FN
Photo 11 — GWA-12D: Box 2 of 2 Depth: 98.4' - 109.0' Date: 05/11/16
hdrinc.com 440 S Church Street, Suites 900 & 1000, Charlotte, NC 28202-2075
[phone]

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 6
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 5/12/16 COMPLETED 5/24/16 GROUND ELEVATION HOLE SIZE(S) 11, 5 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME ---
NOTES DATE/TIME ---
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DESCRIPTION
REMARKS
° W
0
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g0
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03
�ZO
ofD
0
See BG-12D for Lithology 0-98'
Advanced sonic 7" closed bit from surface
5
10
15
20
25

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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to W
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DESCRIPTION
REMARKS
° W
p
0 U
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< O
0
25
30
35
40
45
50

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 3 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W �
c
o
e
=
}
HW
to W
Hp
}
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p
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DESCRIPTION
REMARKS
° W
p
0 U
m0>
O
wU
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LU
< O
0
50
55
60
65
70
75

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC2802-2075 PAGE 4 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
W j
c
o
0
W
CYz
Wp v
0
>
m O a
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O
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DESCRIPTION
REMARKS
° W
z
d
UZ
w
W
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03
QO
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75
80
-80' Return water changed from Reddish
Brown to Gray
85
Override 7" with 11" sonic casing to 98'
90
95
because 97' = beginning of competent rock per
GWA-12D
Gouge of BIOTITE GNEISS, extremely weak, gray
(7.5YR 511) and very dark greenish gray (10Y
6" PVC casing installed, grouted to surface on
3/1), brecciated, foliated
5/13/16 @ 1630
1100
Advance 4 7/8" Versa Sonic Core Barrel from

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 5 OF 6
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rt
U)
3: H
}
>
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ww
w 0
� zj Q
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DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
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g�
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w
w
O
0
U)ZO
af
D
100
Gouge of BIOTITE GNEISS, extremely weak, gray
From 98': Gouge contains garnet, possible
(7.5YR 5/1) and very dark greenish gray (10Y
kyanite, and epidote
3/1), brecciated, foliated (continued)
RC-1
48
105
BIOTITE GNEISS, strong, black (2.5N) and light
greenish gray (10GY 7/1), gneissic, foliated,
common pyrite, garnet
From 109.6': Joints x2, 10-15 degree, partially
110
open, intense Fe staining
From 110.2': Joint, 10 degree, tight to partially
open, intense Fe staining
From 111.8': Joint, 15 degree, unknown
aperature, Fe stained
RC-2
100
115
115.2-124.6': Moderate to weak, reddish black
115.2-118': Shear zone, dip —50 degrees,
(2.5YR 2.5/1), schistose, intensely foliated
pyrite and epidote filled, brecciated from 116.2'
Failed seal on hydraulic pump, switch out
Versa Sonic for full-sized truck sonic rig
,'.•: ;
118-124.6': Many mechanical breaks along
120
RC-3
82
foliation, slightly to moderately decomposed
125

BORING NUMBER GWA-12BR
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 6 OF 6
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_UJ
rt
U)
3: H
}
>
Y
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w 0
� zj Q
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DESCRIPTION
REMARKS
° W
0
aU
m0><no
a�O
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o3
g�
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w
w
O
0
U) Z
125
BIOTITE GNEISS, moderate to weak, reddish
125.2-125.9': Joint x2, dip —50 degrees, tight,
black (2.5YR 2.5/1), schistose, intensely foliated,
epidote mineralized
common pyrite, garnet
From 126.3': Joint, dip —85 degrees, tight,
patchy Fe staining
130
From 130.0': White (N9) and black (N2.5)
From 129.8': Joint, dip —45 degrees, tight to
partially open, pyrite mineralized
RC-4
94
133.5-134': Moderate strength
From 133.7': Joint, dip —40 degrees, tight to
partially open, pyrite mineralized
135
From 134.7': Joint dip —50 degrees, right,
pyrite mineralized
135-148': Fresh, unfractured
From 137': Trace amphibolite
140
RC-5
87
145
Boring terminated at 148', screened interval
set at 113'-118', monitoring well installed
5/24/ 16
Bottom of borehole at 148.0 feet.

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 8
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 5/17/16 COMPLETED 6/3/16 GROUND ELEVATION HOLE SIZE(S) 9.25, 5 inches
DRILLING CONTRACTOR Cascade Drilling L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY DATE/TIME ---
NOTES DATE/TIME ---
LL j
a
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0
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rt
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3: H -1
}
>
Y 0�
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w o
0 Z Q
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DESCRIPTION
REMARKS
° W
0
aU
m0>
n0
E0
03
g0
UZ
w
w
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of
0
(ML) SILT with SAND, soft, reddish yellow (7.5YR
6/6), non -plastic, moist, noncohesive, micaceous
(SAPROLITE)
Sonic drilling: advance 4 7/8" barrel and 6"
sonic casing form srface; all densities and
depths are estimates
Fe staining from surface
From 3': mottle Fe and Mn staining
5
SD-1
112
From 9.0': Alternating zones (-1" thick) of reddish
10
yellow (7.5YR 6/6) and strong brown (7.5YR 5/6)
From 14.0': Wet
From 14': common relic veins/fractures with
SD - 2
108
15
From 17.0': Strong brown (7.5YR 4/6), mottled dark
Mn staining, water per sample
From 17': staining throughout
gray (7.5YR 4/1) and white (N9), sand becoming
well graded
20
From 21.5': Wet
From 22.0-22.5': Lense of (SW) SAND with
GRAVEL
SD-3
120
From 24.0': Medium to stiff, strong brown (7.5YR
From 24': mottled Fe staining
25
1
1
1
1
1
1 5/8), strong relic formation, moist

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 2 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rt
U)
3: H
}
>
Y
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w 0
� zj Q
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p>
DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
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o3
g�
UZ
w
w
O
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a
25
From 24.0': Medium to stiff, strong brown (7.5YR
5/8), strong relic formation, moist (continued)
30
(SP-SM) SAND with SILT, Dense, yellowish red
(5YR 5/8) and white (5YR 8/1), non -plastic, moist
to dry, noncohesive, micaceous (SAPROLITE)
SD-4
120
35
From 36.0': Loose to medium, dense, grayish
brown (10YR 5/2) and yellowish red (5YR 5/8),
very micaceous
40
From 41': trace Fe staining
From 43.0-44.0': Relic quartz vein - recovered as
coarse gravel and sand
SD-5
120
45
From 45.0': Grayish brown (5YR 5/8) and gray
(5N), obvious rock texture and foliation, friable,
intervals with trace gravel
Difficult/slow drilling
50

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 3 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rt
U)
3: H
}
>
Y
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ww
w 0
� zj Q
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DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
U
o3
g�
UZ
w
w
O
U)ZO
af
D
50
From 50.0': Dark grayish brown (10YR 4/2), gravel
absent, fine to medium grained sand
SD-6
132
55
From 58.0': Dark grayish brown (10YR 4/2) and
black (10YR 211)
60
From 60.0': Dense, grayish brown (10YR 5/2),
non -plastic, dry to moist, noncohesive, micaceous
(SAPROLITE)
SD-7
108
65
From 65': Lenses recovered as pulverized
(SP-SM) SAND with SILT, Dense, grayish brown
(10YR 5/2), non -plastic, dry to moist,
material
noncohesive, micaceous (SAPROLITE)
70
SD-8
120
75

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 4 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rr
U)
3: H
}
>
Y
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ww
w 0
� zj Q
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DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
U
o3
g�
UZ
w
w
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0
U)z0
a
75
(SP-SM) SAND with SILT, Dense, grayish brown
(10YR 5/2), non -plastic, dry to moist,
noncohesive, micaceous (SAPROLITE)
(continued)
80
SD-9
120
85
86.5-89': moderatly decomposed rock with
BIOTITE GNEISS, weak to strong, black (10YR
2/1) and very pale brown (10YR 8/2), schistose,
intercals of residual soil
instensely foliated, with intervals of saprolite
(PWR/SAPROLITE)
From 89': residual soil
(SP-SM) SAND with SILT, dense, dark grayish
90
SD-
brown (10YR 4/2), non -plastic, moist,
noncohesive (SAPROLITE)
10
36
95
SD-
95-96': intensely Fe stained
11
99-100': Fe stained
100

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 5 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_uj
rt
U)
3: H
}
>
Y
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ww
w 0
� zj Q
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DESCRIPTION
REMARKS
° W
0
0-
m0><no
a�O
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o3
g�
UZ
w
w
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0
U) Z
a
100
(SP-SM) SAND with SILT, dense, dark grayish
brown (10YR 4/2), non -plastic, moist,
noncohesive (SAPROLITE) (continued)
102-103': intensely Fe stained
SD-
12
105
From 109.0': (SP-SM) SAND with SILT, dense,
110
dark gray (2.5YR 4/1), wet, fine to medium
grained, micaceous, trace clay (SAPROLITE)
109.5-110.5': Fe stained
SD-
13
115
118.5-119': Some gravel of gneiss
119': Continued SAND with SILT
Trouble advancing 6" sonic casing from 119';
120
advance 9" sonic casing 0-60' to loosen hole;
able to continue with 6"
From 123': recovered as pulverized rock and
BIOTITE GNEISS, strong, dark gray (4N),
SD-
gneissic, banded, trace garnet, fine to medium
strong rock, moderately fractured, trace to no
14
120
grained
Fe staining, fresh
125

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 6 OF 8
Phone:[phone]
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CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
LL j
a
C
o
0
_Uj
rt
U)
3: H
}
>
Y
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ww
w 0
� zj Q
O w
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DESCRIPTION
REMARKS
° W
0
aU
m0><no
a�O
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o3
g�
UZ
w
w
O
0
U) Z
a
125
BIOTITE GNEISS, strong, dark gray (4N),
gneissic, banded, trace garnet, fine to medium
grained (continued)
Ream with 9 1/4" casing from 0-129'
6" PVC casing installed, grouted to surface on
130
5/25/16 @1710
129-149': fresh, moist fractures interpreted as
mechanical; falling head test: 16.5 min, 0.33'
of change = 0.02'/min
From 131.6': Joint, dip —55 degrees, slickened,
From 132.0': Intensely foliated
partially open, epidote mineralized with trace
hematite; foliation dip —50 degrees
RC - 1
91
135
From 141.0': Increasing percentage felsic bands
i ..
140
with epidote
RC-2
99
145
Falling head test performed, open hole
150
129-149' for 65 min, 1.45 = 0.02/min

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 7 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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150
From 141.0': Increasing percentage felsic bands
Falling head test performed at 149', 0.3'
with epidote (continued)
change in 10 min
...: .
From 149-193': fresh, moderately,
mechanically broken
RC-3
95
From 154.0': Bluish gray (5PB 5/1)
155
From 157.0': Trace horneblende, possible chlorite,
epidote
160
160-165': Migmatitic texture, with very strong felsic
Falling head test performed at 160', 0.14' over
bands
7 min
165
RC-4
97
From 167.0': Increasing amphibole with depth,
black (2.5N), gneissic, intensely foliated, trace
hematite, garnet, epidote
170
Falling head test performed at 170', 0.5' over
10 min
175

BORING NUMBER GWA-13D
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 8 OF 8
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
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100
From 167.0': Increasing amphibole with depth,
black (2.5N), gneissic, intensely foliated, trace
hematite, garnet, epidote (continued)
180
Falling head test performed at 180', 0.28' over
10 min
185
RC-6
100
From 187-190': driller reports easy drilling
190
From 191.0': Black and dark gray (10Y 4/1)
RC-7
100
Falling head test performed at 192.5', 0.19'
over 10 min
From 193-199': fresh, slightly fractured
1937: Joint x2, dip —30 degrees, tight,
mineralized, minor Fe staining perpendicular to
foliation
195
From 196.4-197.3': trace Fe staining and
healed joints
RC-8
100
197': Joint, 25 degree, unknown aperature,
mineralized, minor Fe staining
196.5-196.8' and 198.3-198.6': Very strong felsic
Falling head test performed at 199', 0.23' over
bands
10 min
Boring terminated at 199', screened interval
set at 133.6-138.5', monitoring well installed
6/3/16
Bottom of borehole at 199.0 feet. pH before adding grout=6.5 on 6/3/16 @ 07:45
am

BORING NUMBER GWA-13S
440 S. Church Street, Suite 900
Charlotte, NC28202-2075 PAGE 1 OF 2
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT NUMBER 269374 PROJECT LOCATION Terrell, NC
DATE STARTED 5/25/16 COMPLETED 5/25/16 GROUND ELEVATION HOLE SIZE(S) 6 inches
DRILLING CONTRACTOR Cascade Drilling, L.P. NORTHING EASTING
DRILLING METHOD Sonic GROUND WATER LEVELS:
LOGGED BY B. Doran CHECKED BY AT DATE/TIME 5/25/2016 12:20:00 PM 19.40 ft
NOTES 1 DATE/TIME ---
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5
10
15
20
25

440 S. Church Street, Suite 900
Charlotte, NC2802-2075
Phone:[phone]
hdrinc.com/follow-us
CLIENT Duke Energy
PROJECT NUMBER 269374
BORING NUMBER GWA-13S
PAGE 2OF2
PROJECT NAME Marshall Post-CSA Additional Assessment
PROJECT LOCATION Terrell. NC
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Bottom of borehole at 31.2 feet.
Boring terminated at 31.2', screened interval
set at 14.5'-29.5', monitoring well installed
5/25116 ;