NC0005088_CSS_Appendix P_20191231

Corrective Action Plan Update December 2019
Cliffside Steam Station
APPENDIX P
ADDITIONAL ASSESSMENT MONITORING
WELL BORING LOGS
AND WELL CONSTRUCTION TABLE
SynTerra

0
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PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BR
PROJECT NO: 1026.21
STARTED: 3/19/19 COMPLETED: 3/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544262.96 EASTING: 1178018.6
DRILLING METHOD: Sonic
G.S. ELEV: 792.68 ft M.P. ELEV: 795.19 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:35.46 ft TOC TOTAL DEPTH: 197.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (�
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
O0
a Q
0
U)
m
m
Protective Casing with
Locking Gap
CL
CLAY, reddish orange, stiff, massive, non -cohesive,
non -plastic (FILL)
CLAY and SILT, gray, with trace grains up to coarse
`3 3
sand, dry, non -plastic, non -cohesive (FLY ASH)
10
•rP�ra
:•:
: 4" star:;:':.
CLAY, SILT and SAND, gray, sand is fine- to
medium grainded and comprises approximately 50% of
2" PVC Riser
:=a ;
`3A`{
the interval, trace gravel, non -cohesive, non -plastic,
dry FLY and BOTTOM ASH
Y ( )
15
------------------------
.s
Same as 3-11'
20
Surface Casing
ML
SILT, orangish brown, with little sand and trace gravel
sized grains, dry, non -plastic, non -cohesive (FILL)
25
SILT, gray with trace sand sized grains, dry,
non -plastic, non -cohesive (FLY ASH WITH TRACE
e'
e'
BOTTOM ASH
e
e
30
�
A ua uard Grout
`3 .;}Z
SAND, fine to very coarse with some silt, dry,
:aL
non -cohesive, non -plastic (BOTTOM ASH)
35
::
1
s
Same as 26.5-29.0 (FLY ASH)
40
y3 3
:»..
;t
Same as 29.0-36.0 (BOTTOM ASH)
e
e
45
:sii`+......
=. ;�`_
a���s�;
Same as 26.5-29.0 (FLY ASH)
?a a.
SILT, dark gray stiff, wet, interbedded (FLY ASH and
BOTTOM ASH
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 4

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PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BR
PROJECT NO: 1026.21
STARTED: 3/19/19 COMPLETED: 3/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544262.96 EASTING: 1178018.6
DRILLING METHOD: Sonic
G.S. ELEV: 792.68 ft M.P. ELEV: 795.19 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:35.46 ft TOC TOTAL DEPTH: 197.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
0
<
�
m
3'3
55
�:�';��;�
SILT, dark gray stiff, wet, interbedded FLY ASH and
9 Y (
:':
=r'
BOTTOM ASH) (continued)
;
1;
" r'.p
60
A
0
2" PVC Rise
65
b.
o
tSurface Casing
70
A '
75
D
a.
A
SILTY CLAY, mottled white, orange, and brown, a few
80
ML
sand grains, moist, non -plastic, non -cohesive poorly
o :
defined relict structure (SAPROLITE)
85
b.
o.
Aquaguard Grout
90
0
95
a
0
4.
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 4

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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BR
PROJECT NO: 1026.21
STARTED: 3/19/19 COMPLETED: 3/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544262.96 EASTING: 1178018.6
DRILLING METHOD: Sonic
G.S. ELEV: 792.68 ft M.P. ELEV: 795.19 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:35.46 ft TOC TOTAL DEPTH: 197.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w v
Q O
p
DESCRIPTION
g
U
p
0
a Q
p
Ir
0
<
�
m
A
105
0
b.
SILTY CLAY, mottled white, orange, and brown, a few
ML
sand grains, moist, non -plastic, non -cohesive poorly
o
defined relict structure (SAPROLITE) (continued)
110
A '
Surface Casing
115
D
A
0
SILTY CLAY, mottled brown orange, and white, a few
120
ML
sand and gravel grains, medium density, non -plastic,
Aquaguard Grout
'
non -cohesive, relict structure (SAPROLITE)
125
o.
CLAY, brown and gray, silty matrix supporting gravel
and cobble grains, coarse clasts comprised of gneiss,
moist except 124.5-126.5 being wet, non -plastic,
non -cohesive (PWR)
130
135
GNEISS, black biotite banded with sillimanite-quartz
140
gneiss, irregular banding thicknesses with salt and
pepper texture locally, banding typically perpendicular
to core axis, very hard, mechanically broken throughout
interval (COMPETENT ROCK)
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 3 OF 4

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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BR
PROJECT NO: 1026.21
STARTED: 3/19/19 COMPLETED: 3/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544262.96 EASTING: 1178018.6
DRILLING METHOD: Sonic
G.S. ELEV: 792.68 ft M.P. ELEV: 795.19 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:35.46 ft TOC TOTAL DEPTH: 197.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
w
❑
_ (D
Q O
Ir
O
p
DESCRIPTION
d
g
<
O-
U o
�
z
OJ p
m 0
p E
a Q
CONSTRUCTION
155
160
165
170
GNEISS, black biotite banded with sillimanite-quartz
gneiss, irregular banding thicknesses with salt and
pepper texture locally, banding typically perpendicular
175
to core axis, very hard, mechanically broken throughout
interval (COMPETENT ROCK) (continued)
180
—Benton ite Seal
185
—Sand Filter Pack
190
Well Screen
195
Bottom of borehole 197
Well screened 185.5-195.5'
SynTerra CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 4 OF 4

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PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544240.25 EASTING: 1178030.52
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.90 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:48.00 ft TOC TOTAL DEPTH: 157.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
U)
d
O^
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z
o f
CONSTRUCTION
w
Q O
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DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
co0
Protective Casing with
oc ing ap
CL
CLAY, reddish orange, stiff, massive, non -cohesive,
non -plastic (FILL)
:'
CLAY and SILT, gray, trace grains up to coarse sand,
`3 3
dry, non -plastic, non -cohesive (FLY ASH)
10
�;pay;p
2" PVC Riser
: 4" star:;:':.
CLAY, SILT and SAND, gray, sand is fine- to
:s
medium-grainded and comprises approximately 50% of
:=a ;
`3A`{
the interval, trace gravel, non -cohesive, non -plastic,
dry FLY and BOTTOM ASH
Y ( )
15
------------------------
.s
Same as 3-11'
20
Surface Casing
ML
SILT, orangish brown, with little sand and trace gravel
sized grains, dry, non -plastic, non -cohesive (FILL)
25
SILT, gray, trace sand sized rains, dr non lastic,
g Y, g Y, p
7_%:
non cohesive (FLY ASH WITH TRACE BOTTOM ASH)
30
`3 3
SAND, fine to very coarse with some silt, dry,
non -cohesive, non -plastic (BOTTOM ASH)
35
°,�.,:::
Aquaguard Grout
s
:s:
Same as 26.5-29.0 (FLY ASH)
40
y3 3
:»..
;t
Same as 29.0-36.0 (BOTTOM ASH)
e
e
-
- - - - - - - - - - - - - - - - - - - - - - - -
"yS?�,.,Pj2v1iyS?�,.,P
45
a s
Same as 26.5 29.0 (FLY ASH)
?a a.
SILT, dark gray stiff, wet, interbedded (FLY ASH and
BOTTOM ASH
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 4

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PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544240.25 EASTING: 1178030.52
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.90 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:48.00 ft TOC TOTAL DEPTH: 157.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
0
<
�
m
3'3
55
�$�+���$�+�
SILT, dark gray stiff, wet, interbedded FLY ASH and
g y (
2" PVC Riser
:r
BOTTOM ASH) (continued)
60
r;r
P —
-------------------
n
Surface Casing
65
0
b.
70
0
A '
Aquaguard Grout
75
D
a.
A
SILTY CLAY, mottled white, orange and brown, a few
80
ML
sand grains, moist, non -plastic, non -cohesive poorly
o :
defined relict structure (SAPROLITE)
85
b.
o.
90
A '
0
95
a
A
0
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 4

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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544240.25 EASTING: 1178030.52
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.90 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:48.00 ft TOC TOTAL DEPTH: 157.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w v
Q O
p
DESCRIPTION
g
U
p
0
a Q
p
Ir
0
<
�
m
A
105
0
b.
SILTY CLAY, mottled white, orange and brown, a few
ML
sand grains, moist, non -plastic, non -cohesive poorly
o
defined relict structure (SAPROLITE) (continued)
110
A '
2" PVC Riser
115
D
Surface Casing
A
0
SILTY CLAY, mottled brown orange, and white, with
120
ML
few sand and gravel grains, medium density,
Aquaguard Grout
'
non -plastic, non -cohesive relict structure (SAPROLITE)
125
0
CLAY, brown and gray, with silty matrix supporting
gravel and cobble grains, coarse clasts comprised of
gneiss, moist except 124.5-126.5 being wet,
non -plastic, non -cohesive (PWR)
130
135
GNEISS, black biotite banded with sillimanite-quartz
140
gneiss, irregular banding thicknesses with salt and
pepper texture locally, banding typically perpendicular
to core axis, very hard, mechanically broken throughout
interval (COMPETENT ROCK)
—Benton Seal
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 3 OF 4

PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544240.25 EASTING: 1178030.52
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.90 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:48.00 ft TOC TOTAL DEPTH: 157.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
O
<
�
m
Sand Filter Pack
GNEISS, black biotite banded with sillimanite-quartz
Well Screen
gneiss, irregular banding thicknesses with salt and
pepper texture locally, banding typically perpendicular
to core axis, very hard, mechanically broken throughout
155
interval (COMPETENT ROCK) (continued)
Bottom of borehole 157'
Well screened 147-157'
160
165
170
175
180
185
190
195
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 4 OF 4

0
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PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7S
PROJECT NO: 1026.21
STARTED: 3/26/19 COMPLETED: 3/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544252.38 EASTING: 1178024.3
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.80 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:34.84 ft TOC TOTAL DEPTH: 57.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (�
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
O0
a Q
0
U)
m
m
Protective Casing with
Locking Gap
CL
CLAY, reddish orange, stiff, massive, non -cohesive,
non -plastic (SOIL)
—
— — — — — — — — — — — — — — — — — — — — — — — —
:P
5
,?_?
;:s :
X..:'a':'
CLAY and SILT, gray, trace grains up to coarse sand,
`3 3
dry, non -plastic, non -cohesive (FLY ASH)
10
•rP�ra
:•:
CLAY, SILT and SAND, gray, sand is fine- to
medium grainded and comprises approximately 50% of
2" PVC Riser
:=a ;
•,?:;�3`?,
`3A`{
the interval, trace gravel, non -cohesive, non -plastic,
za?�ai.
dry FLY and BOTTOM ASH
Y ( )
15
?�a
-:
—
------------------------
: P
s
.s
�
Same as 3-11'
spa.
20
—Aquaguard Grout
ML
SILT, orangish brown, with little sand and trace gravel
sized grains, dry, non -plastic, non -cohesive (FILL)
25
SILT, gray, trace sand sized grains, dry, non -plastic,
7_%:
non cohesive (FLY ASH WITH TRACE BOTTOM ASH)
30
s a:»
`3 3
SAND, fine to very coarse with some silt, dry,
non -cohesive, non -plastic (BOTTOM ASH)
35
1
s
—
------------------------
..
`$*``$*`
Same as 26.5-29.0 (FLY ASH)
40
:»..
Same 29.0-36.0 ASH)
as (BOTTOM
-
-----------------------
—Benton ite Seal
y' s' p
45
� t.
Same as 26.5-29.0 (FLY ASH)
?,.
—Sand Filter Pack
------------------------
Well Screen
3:
SILT, dark gray, stiff, wet, interbedded (FLY ASH and
;ea
BOTTOM ASH)
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AB-7S
PROJECT NO: 1026.21
STARTED: 3/26/19 COMPLETED: 3/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544252.38 EASTING: 1178024.3
DRILLING METHOD: Sonic
G.S. ELEV: 793.15 ft M.P. ELEV: 795.80 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:34.84 ft TOC TOTAL DEPTH: 57.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
= 0
U)
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
U)
DESCRIPTION
g
U
a Q
0
"P—Sand
Filter Pack
ss
Well Screen
SILT, dark gray, stiff, wet, interbedded (FLY ASH and
%3
BOTTOM ASH) (continued)
55
Bottom of borehole 57'
Well screened 47-57'
60
65
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
o f
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
¢
U
w
a Q
p
m�
0
U
m
m0
U
—Flush Mn y r
GP
GRAVEL and COBBLE (FILL)
5
10
SILTY SAND (SM), reddish yellow (5YR 6/8) and brown
(7.5YR 5/4), non -cohesive, moist, few gravel and roots
SM
interlayered with FAT CLAY, red (1 OR 4/8) with SAND
(CH), high plasticity, dense, moist, trace gravel and
15
roots (FILL)
20
25
2" PVC Riser
'`:;
ASH, very dark gray (2.5Y 3/1), silt -textured with very
SM
little sand -sized particles, wet, cohesive, non -plastic
(FLY ASH)
Grout
30
Surface Casing
FAT CLAY, red (1 OR 4/8) with SAND, high plasticity,
CH
dense, moist to wet, few decaying roots and evidence
of preferential flow paths for water running vertically,
discolored and wet (FILL)
35
CLAYEY SAND (SC), reddish yellow (7.5YR 6/6),
SC
cohesive, non -plastic, wet, trace decaying roots, alluvial
40
in nature but reworked, few lenses of coarse sand
(FILL)
— — — — — — — — — — — — — — — — — — — — — — — —
Aquaguard Grout
45
CH
FAT CLAY, red (1 OR 4/8) with SAND, high plasticity,
dense, moist to wet, with few cobbles (FILL)
CLIENT: Duke Energy Carolinas
SynTerra
��
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 3

0
m
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CO
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
U
0
a Q
❑
Ir
O
<
�
m
55
SILLIMANITE GNEISS, white, with black biotite rich
RK
bands, banding runs -10-20 degrees to core axis,
broken core with several oxidized fractures
60
(PARTIALLY WEATHERED ROCK)
65
70
75
80
BIOTITE and SILLIMANITE GNEISS, white and black
RK
banding running -10-20 degrees to core axis,
occassional zones with salt and pepper texture, intact
85
(COMPETENT ROCK)
—Benton ite Seal
90
`'•�—Sand Filter Pack
1
95
Well Screen
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
U
0
a Q
❑
Ir
O
<
�
m
BIOTITE and SILLIMANITE GNEISS as above
RK
(continued)
Bottom of borehole 103'
Well screened 90-100'
105
110
115
120
125
130
135
140
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 3 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: AB-8BRU
PROJECT NO: 1026.21
STARTED: 3/18/19 COMPLETED: 3/20/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544021.3 EASTING: 1177572.33
DRILLING METHOD: Sonic
G.S. ELEV: 772.18 ft M.P. ELEV: 775.13 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:13.68 ft TOC TOTAL DEPTH: 98.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Mastbaum CHECKED BY: T. Grant
� y
0- c7
0
a-
O --
o
Cl)
z
o f
WELL
CONSTRUCTION
w
Q O
❑
DESCRIPTION
g
w
w'
JO ❑
m O
a Q
❑0
U)
m
—Protective Casing with
oc mg ap
ASH, dark olive gray (5Y 3/2), and black (5Y 2.5/1), dry
Su..
to moist, fly ash and bottom ash mixed irregularly (FLY
AND BOTTOM ASH)
'P
a.
—
------------------------
i
•a:P�w•z ;a
ASH, dark gray (2.5Y 4/1), silt -textured, cohesive,
10
.'t;
*; ; P
non -plastic, wet, few coarse pieces (FLY ASH)
— — — — — — — — — — — — — — — — --
P—
15
�` � • �:
ASH, black (5Y 2.5/1), fine to coarse -grained with
t
gravel -sized cinders, non -cohesive, fines non-plastic,
wet, few thin lenses (<2") of fly ash, as described
20
1.3�<p3�<p
above, (BOTTOM ASH)
2" PVC Riser
,•:,:p:z•,•::p
—
------------------------
Surface Casing
ASH, dark gray (2.5Y 4/1),silt-textured, cohesive,
•:,P•z •:,P
plastic, wet poorly graded (FLY ASH)
—
—non
----
— —
Grout
30
'PyP
35
ASH, black 2.5/1), fine
(5Y to coarse -grained with
gravel-sized cinders, non -cohesive, fines non -plastic,
s.:..;.
wet, few thin lenses (<3") of fly ash, dark gray (2.5Y
4/1), silt -textured, cohesive, non -plastic (BOTTOM
40
33
;' '
P`,:YP
ASH)
Aquaguard Grout
3a' 3a's
tl
J
•azv Pz„R,;a
SynTerra CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenville, South Carolina 29601
synTerms Phone:[phone] PAGE 1 OF 2

0
a
CO
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AMBRU
PROJECT NO: 1026.21
STARTED: 3/18/19 COMPLETED: 3/20/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544021.3 EASTING: 1177572.33
DRILLING METHOD: Sonic
G.S. ELEV: 772.18 ft M.P. ELEV: 775.13 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:13.68 ft TOC TOTAL DEPTH: 98.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Mastbaum CHECKED BY: T. Grant
= 0
�
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
a Q
0
A
°
SANDY SILT (ML), strong brown (7.5YR 5/6) dark
brown (7.5YR 3/3), and white (1\19), cohesive,
55
ML
non -plastic, relic foliation, micaceous, trace kaolin, few
o ..:.<
gravel and cobble sized fragments of hightly weathered
biotite gneiss, sand generally fine-grained, moist,
0
tMj
colluvium (SAPROLITE)
60
A
SILT with GRAVEL (ML), light yellowish brown (2.5Y
ML
6/3), cohesive, low plasticity, slightly rounded pebbles,
o :
increasing with depth, moist, , alluvium, increasing
65
sand content with depth (SAPROLITE)
SANDY SILT with GRAVEL, pale brown (10YR 6/3),
°
ML
brown (10YR 5/3) and white (N9), cohesive,
non -plastic, dry to moist, some coarse weathered
70
—
gravel, residuum, highly weathered rock fragments
increasing with depth, dry with moist intervals (-6" /
eachHSAPROLITE/PARTIALLY WEATHERED ROCK)
GRANITIC GNEISS, white with thin black layering,
RK
staining prevalent (WEATHERED TO PARTIALLY
WEATHERED ROCK)
75
GRANITIC GNEISS, white with thin black layering,
80
RK
quartz prevalent, some staining, few garnets,
(PARTIALLY WEATHERED ROCK)
Bentonite Seal
85
87' BGS, Fractures and staining
90
RK
GRANITIC GNEISS, white with thin black layers, quartz
''i�Sand Filter Pack
prevalent, few garnets (COMPETENT ROCK)
Well Screen
92' BGS, Fractures and staining
95
96' BGS, Fractures and staining
_
:
i'..
Bottom of borehole 98'
Well screened 87-97BGS
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 2

PROJECT: DEC-Cliffside
PROJECT NO: 1026.21
WELL / BORING NO: AB-81
STARTED: 3/14/19 COMPLETED: 3/19/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544033.17
EASTING: 1177580.15
DRILLING METHOD: Sonic
G.S. ELEV: 772.21 ft
M.P. ELEV: 774.99 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:13.31 ft TOC
TOTAL DEPTH: 77.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum
CHECKED BY: T. Grant
= c7
�
O ^
a
z
OJ
❑ E
CONSTRUCTION
w
Q O
DESCRIPTION
U
w
❑
0 Q
[7
❑
0
❑
�
m O
.—Protective Casing with
5
10
15
20
25
30
ASH, dark olive gray (5Y 3/2), and black (5Y 2.5/1), dry
to moist, fly ash and bottom ash mixed irregularly (FLY
AND BOTTOM ASH)
ASH, dark gray (2.5Y 4/1), silt -textured, cohesive,
non -plastic, wet, few coarse pieces (FLY ASH)
ASH, black (5Y 2.5/1), fine to coarse -grained with
gravel -sized cinders, non -cohesive, fines non -plastic,
wet, few thin lenses (<2") of fly ash, as described
above, (BOTTOM ASH)
ASH, dark gray (2.5Y 4/1), silt -textured, cohesive,
— --non-plastic, wet poorly graded (FLY ASH) -----
35
:t„t„
ASH, black (5Y 2.5/1), fine to coarse -grained with
fines
•
gravel -sized cinders, non -cohesive, non -plastic,
wet, few thin lenses (<3") of fly ash, dark gray (2.5Y
:P• :P
t..
4/1) silt -textured, cohesive, non -plastic (BOTTOM
ASH)
40
45
— ------------------------
ASH, dark gray to black, fine-grained, wet, coal
fragments at base (FLY ASH)
MIL SANDY SILT, yellowish red, moist (SAPROLITE)
2" PVC Riser
Surface Casing
Grout
Aquaguard Grout
SynTerra
lop CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
synTerra Greenville, South Carolina 29601
Phone:[phone] PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AB-81
PROJECT NO: 1026.21
STARTED: 3/14/19 COMPLETED: 3/19/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544033.17 EASTING: 1177580.15
DRILLING METHOD: Sonic
G.S. ELEV: 772.21 ft M.P. ELEV: 774.99 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:13.31 ft TOC TOTAL DEPTH: 77.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum CHECKED BY: T. Grant
= (7
�
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
a Q
C7
<
�
co0
ML
6ANUY 61L 1, yellowish red, mois
—
LontinuedL _ _ i
—Benton ite Seal
A :.
CL
KAOLIN, white, dry and partially weathered rock
fragments (SAPROLITE)
55
A
_
Drill out 6" PVC surface casing
o
ML
SANDY SILT as above and partially weathered rock
fra rents SAPROLITE
60
.o ..SIA
`—Sand Filter Pack
Well Screen
ML
SANDY SILT and GRAVEL, light yelowish brown, moist
(SAPROLITE)
65o
70
..
SANDY SILT with GRAVEL, pale brown (10YR 6/3),
brown (10YR 5/3) and white (N9), cohesive,
ML
non -plastic, dry to moist, some coarse weathered
—Bentonite Backplug
gravel, residuum, highly weathered rock fragments
°
increasing with depth, dry with moist intervals ( 6"
each) (SAPROLITE/PARTIALLY WEATHERED ROCK)
75
°
IN
Bottom of borehole 77' BGS
Well screened 57-67BGS
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
PROJECT NO: 1026.21
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Sonic
BOREHOLE DIAMETER: 6 IN
NOTES:
U
wQ O DESCRIPTION
5
10
15
20
25
30
35
40
45
WELL / BORING NO: AB-8S
STARTED: 3/14/19
NORTHING: 544027.18
G.S. ELEV: 772.19 ft
DEPTH TO WATER:13.01 ft TOC
LOGGED BY: M. Mastbaum
d O o mZ ME
Qu0n j
U)
U
ASH, dark olive gray (5Y 3/2), and black (5Y 2.5/1), dry
to moist, fly ash and bottom ash mixed irregularly (FLY
AND BOTTOM ASH)
ASH, dark gray (2.5Y 4/1), silt -textured, cohesive,
non -plastic, wet, few coarse pieces (FLY ASH)
ASH, black (5Y 2.5/1), fine to coarse -grained with
gravel -sized cinders, non -cohesive, fines non -plastic,
wet, few thin lenses (<2") of fly ash, as described
above, (BOTTOM ASH)
Bottom of borehole 23.5' BGS
Well screened 12.5-22.5' BGS
COMPLETED: 3/14/19
EASTI NG: 1177576.3
M.P. ELEV: 774.91 ft
TOTAL DEPTH: 23.5 ft BGS
CHECKED BY: T. Grant
WELL
CONSTRUCTION
�— Protective Casing with
Locking Cap
e° —Aquaguard Grout
2" PVC Riser
i
Bentonite Seal
Sand Filter Pack
Well Screen
SynTerra
lop CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
synTeraGreenville,999 ling 29601
rPhone 864 421 9PAGE 1 OF 1

0
m
a
CO
a
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-9BR
PROJECT NO: 1026.21
STARTED: 4/4/19 COMPLETED: 4/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545334.76 EASTING: 1178196.72
DRILLING METHOD: Sonic
G.S. ELEV: 728.16 ft M.P. ELEV: 727.49 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:68.90 ft TOC TOTAL DEPTH: 89.4 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
¢
U
w
p
a Q
p
m�
0
�
m
m0
U—FlushM
n y r
CL
SILTY CLAY, light brown , occasional coarse sand, dry
(FILL)
5
GP
GRAVEL, gneiss (FILL)
CL
CLAY, orange, cohesive, dry (FILL)
10
A
CL
SILTY CLAY, brown and orange , relict structure
2" PVC Riser
0
(SAPROLITE)
15
A
20
°
°
CL
SILTY CLAY, mottled light to medium brown
occasional relict textures (SAPROLITE)
25
A '
30
QUARTZ SILLIMINITE and BIOTITE GNEISS, white
35
with minor black bands, garnet rich, trace oxidation
staining, low recovery, soft material appears to have
been washed out by drilling fluids (COMPETENT
BEDROCK)
Aquaguard Grout
40
42-69' BGS, Several mechanical and natural fractures
45
GNEISS, white and light gray, faint biotite rich bands,
garnet rich, (COMPETENT ROCK)
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AS-9BR
PROJECT NO: 1026.21
STARTED: 4/4/19 COMPLETED: 4/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545334.76 EASTING: 1178196.72
DRILLING METHOD: Sonic
G.S. ELEV: 728.16 ft M.P. ELEV: 727.49 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:68.90 ft TOC TOTAL DEPTH: 89.4 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
O
<
�
m
55
60
65
i_
GNEISS, white and light gray, faint biotite rich bands,
70
garnet rich, (COMPETENT ROCK) (continued)
75
69-89' BGS, Competent core with mechanical fractures
—Benton ite Seal
80
83-83.5' BGS, Fractured, likely water bearing zone
•—Sand Filter Pack
Well Screen
85
90
Bottom of borehole 89.4'
Well screened 79.4-89.4'
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
[0
a
CO
a
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AB-Qp
PROJECT NO: 1026.21
STARTED: 3/14/19 COMPLETED: 3/19/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 543948.96 EASTING: 1178653.75
DRILLING METHOD: Sonic
G.S. ELEV: 768.21 ft M.P. ELEV: 771.04 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:22.75 ft TOC TOTAL DEPTH: 67.5 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (�
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
m O0
a Q
0
U)
m
Protective Casing with
Locking Gap
SAND to SILT, medium gray, fine with trace CLAY
soft, loose, moist, non -cohesive, occasional
particles,
thin bedding (ASH)
s
.
as
_
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
SAND to SILT, medium gray fine with trace CLAY
9 Y
particles, soft to medium, loose to medium density,
—
saturated, non -cohesive, occasional thin bedding
(ASH — — — — -
10
'.'
Same as above except coarser grained
s
a`
Same as above except more fine grained particles,
slightly more dense
2" PVC Riser
:=r•=
ems.
Surface Casing
a:s
SILT to fine SAND, medium gray, with trace clay
20
:=a
•;:,:_�
`"
; •=y
particles, soft, moist, non -cohesive, occasional thin
bedding (ASH)
---------------------------
3,y
SILT, medium gray, some fine SAND at 26', soft,
g Y,
:_ •_ ;
medium, saturated, cohesive (ASH)
Aquaguard Grout
A
SILT, medium gray, lenses of fine sand at 27, soft to
ML
very soft, cohesive, wet, occasional lamination
30
0
(SAPROLITE)
SM
SAND to SILT, red to orange fine medium, moist,
°
A
cohesive (SAPROLITE
-r- -L-
SM
FINE SAND to SILT, tan to orange, medium, moist,
—
non -cohesive SAPROLITE
35
A ::
SM
Same as above except some brown lenses and loose
A
SAND and SILT, orangish to red, fine with occasional
SM
coarse sand grains, soft, moist, non -cohesive
(SAPROLITE)
40
—
------------------------
A
SW
FINE SAND and SILT, oranish brown with gravel, well
0
graded, soft, moist, non -cohesive (SAPROLITE)
45
A ::
ML
SILT and CLAY, mottled orange and light gray, well
graded, pebble and gravel fragments, moist (PWR)
SW
SAND and SILT, brown, with gravel, soft, moist,
°
non -cohesive PWR
ML
SILT, light brown, very soft, dry, massive,
L
j
non -cohesive, possibly alluvium (PWR)
SynTerra CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AB-Qp
PROJECT NO: 1026.21
STARTED: 3/14/19 COMPLETED: 3/19/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 543948.96 EASTING: 1178653.75
DRILLING METHOD: Sonic
G.S. ELEV: 768.21 ft M.P. ELEV: 771.04 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:22.75 ft TOC TOTAL DEPTH: 67.5 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
= 0
�
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
0
a Q
C7
<
Cc
m
ML
—
————————————————————————
—Bentonite Seal
SP
SAND to COARSE GRAVEL, gray to brown, well
graded, dry with small intervals being moist (PWR)
55
R.
SM
FINE SAND to SILT, gray brown, some coarse gravel
—
and cobbles, cobbles and gravel clasts are well
SM
\ rounded, possibly alluvial PWR /
—
SAND, gray brown, silty with some coarse gravel and
60
cobbles, cobbles and caravel are rounded, moist (PWRj
A ::---------—Sand
SILTY SAND, gray brown, some coarse gravel, sand is
Filter Pack
SM
medium to coarse grained, moist transitioning to dry
0
downhole, micaceous (PWR)
Well Screen
A
65
ML
SANDY SILT, brown to orange, trace weathered rock,
4.
dry, micaceous (PWR)
GNEISS, light gray to black, very hard, slightly
weathered to fresh COMPETENT ROCK
Bottom of borehole 67.5'
Well screened 57.5-67.5'
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AMS
PROJECT NO: 1026.21
STARTED: 3/15/19 COMPLETED: 3/15/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 543943.95 EASTING: 1178644.91
DRILLING METHOD: Sonic
G.S. ELEV: 768.12 ft M.P. ELEV: 770.81 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:10.52 ft TOC TOTAL DEPTH: 25.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (�
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
O0
a Q
0
U)
m
m
Protective Casing with
Locking Gap
SAND and SILT, medium gray, fine, trace clay
`3a:>
particles, soft, loose, moist, non -cohesive, occasional
thin bedding (ASH)
Aquaguard Grout
s
_
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
SAND to SILT, medium gray, fine with trace CLAY
particles, soft to medium, loose to medium density,
50M
saturated, non -cohesive, occasional thin bedding
—Bentonite Seal
(ASH — — — — — — — — ------
10
•: :;,•:,°
Same as above except coarser grained
� s•
a s
>3
Same as above except more fine grained particles,
slightly more dense
2" PVC Riser
15`3>
•:. .r•:
ax.
y:y
SILT to fine SAND, medium gray, with trace clay
Sand Filter Pack
:=a:
particles, soft, moist, non -cohesive, occasional thin
Well Screen
20
bedding (ASH)
:• .:
SILT, medium gray, soft, medium, saturated, cohesive
:s
(ASH)
25
Bottom of borehole 25'
Well screened 14-24'
30
35
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 1

0
c�
g
a
a
0
co
z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-7BRB
PROJECT NO: 1026.21
STARTED: 3/22/19 COMPLETED: 3/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545171.04 EASTING: 1178084.62
DRILLING METHOD: Sonic
G.S. ELEV: 743.21 ft M.P. ELEV: 746.11 ft
BOREHOLE DIAMETER: 1 OH6 IN
DEPTH TO WATER:52.83 ft TOC TOTAL DEPTH: 126.0 ft BGS
NOTES:
LOGGED BY: M. Youngblood/M. Craig CHECKED BY: T. Grant
= c7
0
a-
O^
a❑
0 z
❑ E
CONSTRUCTION
w
Q O
❑
DESCRIPTION
U
w
m O
a Q
❑
U)
w
.—Protective Casing with
Locking Cap
CL
SANDY LEAN CLAY (CL), brown -red, medium
plasticity, moist, trace roots (SOIL)
5
SW
SAND with SILT and GRAVEL, yellow -brown, fine to
SM
--
lastic, non cohesive, moist FIL�
coarse- rained, non �—
--------- ----------
SW
SAND with SILT and GRAVEL, yellow -brown, fine to
SM
coarse -grained, non -plastic, non -cohesive, moist, with
trace organics at 7' bgs (FILL)
10
SAND with SILT, reddish brown, fine to
SM
medium -grained with large gravel, moist, micaceous
(FILL)
15
—
SM
---------------
SAND with SILT, reddish brown, fine to
medium -grained with large gravel, moist, micaceous
;t:: ' •t:,:y
'~t
ML
(FILL)
ASH, dark gray, sand silt in texture, fine, non -plastic,
9 Y Y p
;:.:..
non -cohesive, d
dry
20
ML
SANDY SILT, red, fine- to medium-graned, medium
plasticity, cohesive, micaceous (FILL)
25
2" PVC Riser
,ty..y ;y
g mg--
MIL
ASH, dark gray, sandy silt in texture, fine, non -plastic,
—
non cohesive, d ASH
°
ti';; t:,;„
- :
30
SM
ASH, mix of fly and bottom ash, fly ash is fine graned,
Surface Casing
ems.
`3 :•
bottom ash is medium to coarse -grained
r"jet
;�t
"a?
MIL
— ---- ---
SANDY SILT, brownish gray, fine, some ash
35
—
SM
non lastic, cohesive, moist FILL with ASH
— �— -------�---�
,ty, y;;y
.
ASH, mix of fly and bottom ash, fly ash is fine-graned,
bottom ash is medium- to coarse rained
SANDY FAT CLAY, reddish orange, sand is fine
Grout
CL
grained, plastic, cohesive, moist, no visible structure
40
(RESIDUAL SOILS)
SANDY SILT, red grading to light brown, fine,
MIL
non -plastic, cohesive, moist, relic structure present
45
—
MIL
SAPROLITE
SANDY SILT, mottled, sand, fine- to medium-graned
with trace coarse grain, non -plastic, cohesive, moist,
—
micaceous (SAPROLITQ--------___.
°e
SILTY SAND, mottled brown and white, sand, fine- to
SM
medium -grained, non -plastic, cohesive, moist grading
0
to dry (SAPROLITE)
Aquaguard Grout
ra CLIENT: Duke Energy Carolinas
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
48 R
synTerra Greenville, South Carolina 29601
Phone:[phone] PAGE 1 OF 3

0
a
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0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-7BRB
PROJECT NO: 1026.21
STARTED: 3/22/19 COMPLETED: 3/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545171.04 EASTING: 1178084.62
DRILLING METHOD: Sonic
G.S. ELEV: 743.21 ft M.P. ELEV: 746.11 ft
BOREHOLE DIAMETER: 1 OH6 IN
DEPTH TO WATER:52.83 ft TOC TOTAL DEPTH: 126.0 ft BGS
NOTES:
LOGGED BY: M. Youngblood/M. Craig CHECKED BY: T. Grant
= (7
U)
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
a Q
0
A
SILTY SAND, mottled brown and white, sand, fine- to
SM
medium -grained, non -plastic, cohesive, moist grading
to dry (SAPROLITE) (continued)
55
A
60
0
SILTY SAND, mottled tannish brown, sand, fine to
SM
medium -grained, non -plastic, cohesive, moist grading
o ..:.:
to dry (SAPROLITE)
65
0
70
BIOTITE GNEISS, white and black, fine to medium
RK
grained, moderate weathering, staining evident from
66-73' BGS (TRANSITION ZONE)
75
80
82-85' BGS, Staining and fracturing present
86-88' BGS, Staining evident
85
BIOTITE GNEISS, white with black bands, fine- to
RK
medium -grained, hard to very hard, very slight
weathering (COMPETENT ROCK)
90
91-93' BGS, Vertical fracture
95
99-105' BGS, Several vertical fractures and intense
fracturing
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 3

0
m
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CO
a
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a
0
P
CO
z
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-7BRB
PROJECT NO: 1026.21
STARTED: 3/22/19 COMPLETED: 3/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545171.04 EASTING: 1178084.62
DRILLING METHOD: Sonic
G.S. ELEV: 743.21 ft M.P. ELEV: 746.11 ft
BOREHOLE DIAMETER: 1 OH6 IN
DEPTH TO WATER:52.83 ft TOC TOTAL DEPTH: 126.0 ft BGS
NOTES:
LOGGED BY: M. Youngblood/M. Craig CHECKED BY: T. Grant
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
U
a Q
❑
o�
O
<
�
m0
—Benton ite Seal
99-105' BGS, Several vertical fractures and intense
fracturing (continued)
105
110
BIOTITE GNEISS, white with black bands, fine- to
RK
medium -grained, hard to very hard, very slight
—Sand Filter Pack
weathering (COMPETENT ROCK) (continued)
115
Well Screen
120
125
Bottom of borehole 126'
Well screened 111-121'
130
135
140
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 3 OF 3

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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
o f
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
¢
U
w
a Q
p
m�
0
�
m
m0
U
Protective with
Locking Cap
GP
GRAVEL and COBBLE (FILL)
5
10
SILTY SAND (SM), reddish yellow (5YR 6/8) and brown
(7.5YR 5/4), non -cohesive, moist, few gravel and roots
SM
interlayered with FAT CLAY, red (1 OR 4/8) with SAND
(CH), high plasticity, dense, moist, trace gravel and
15
roots (FILL)
20
25
2" PVC Riser
�1 .
''3'y
ASH, very dark gray (2.5Y 3/1), silt -textured with very
SM
little sand -sized particles, wet, cohesive, non -plastic
(FLY ASH)
Grout
30
Surface Casing
FAT CLAY, red (1 OR 4/8) with SAND, high plasticity,
CH
dense, moist to wet, few decaying roots and evidence
of preferential flow paths for water running vertically,
discolored and wet (FILL)
35
CLAYEY SAND (SC), reddish yellow (7.5YR 6/6),
SC
cohesive, non -plastic, wet, trace decaying roots, alluvial
40
in nature but reworked, few lenses of coarse sand
(FILL)
— — — — — — — — — — — — — — — — — — — — — — — —
Aquaguard Grout
45
CH
FAT CLAY, red (1 OR 4/8) with SAND, high plasticity,
dense, moist to wet, with few cobbles (FILL)
CLIENT: Duke Energy Carolinas
SynTerra
��
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 3

0
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
U
0
a Q
❑
Ir
O
<
�
m
55
SILLIMANITE GNEISS, white, with black biotite rich
RK
bands, banding runs -10-20 degrees to core axis,
broken core with several oxidized fractures
60
(PARTIALLY WEATHERED ROCK)
65
70
75
80
BIOTITE and SILLIMANITE GNEISS, white and black
RK
banding running -10-20 degrees to core axis,
occassional zones with salt and pepper texture, intact
85
(COMPETENT ROCK)
—Benton ite Seal
90
`'•�—Sand Filter Pack
1
95
Well Screen
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: AS -$BR
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/10/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545335.6 EASTING: 1178015.58
DRILLING METHOD: Sonic
G.S. ELEV: 725.51 ft M.P. ELEV: 725.18 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:94.86 ft TOC TOTAL DEPTH: 103.0 ft BGS
NOTES:
LOGGED BY: T. Grant/M. Youngblood CHECKED BY:
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
_
DESCRIPTION
g
U
0
a Q
❑
Ir
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�
m
BIOTITE and SILLIMANITE GNEISS as above
RK
(continued)
Bottom of borehole 103'
Well screened 90-100'
105
110
115
120
125
130
135
140
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 3 OF 3

0
m
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CO
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-9BR
PROJECT NO: 1026.21
STARTED: 4/4/19 COMPLETED: 4/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545334.76 EASTING: 1178196.72
DRILLING METHOD: Sonic
G.S. ELEV: 728.16 ft M.P. ELEV: 727.49 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:68.90 ft TOC TOTAL DEPTH: 89.4 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
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z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
¢
U
w
p
a Q
p
m�
0
�
m
m0
U—FlushM
n y r
CL
SILTY CLAY, light brown , occasional coarse sand, dry
(FILL)
5
GP
GRAVEL, gneiss (FILL)
CL
CLAY, orange, cohesive, dry (FILL)
10
A
CL
SILTY CLAY, brown and orange , relict structure
2" PVC Riser
0
(SAPROLITE)
15
A
20
°
°
CL
SILTY CLAY, mottled light to medium brown
occasional relict textures (SAPROLITE)
25
A '
30
QUARTZ SILLIMINITE and BIOTITE GNEISS, white
35
with minor black bands, garnet rich, trace oxidation
staining, low recovery, soft material appears to have
been washed out by drilling fluids (COMPETENT
BEDROCK)
Aquaguard Grout
40
42-69' BGS, Several mechanical and natural fractures
45
GNEISS, white and light gray, faint biotite rich bands,
garnet rich, (COMPETENT ROCK)
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: AS-9BR
PROJECT NO: 1026.21
STARTED: 4/4/19 COMPLETED: 4/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545334.76 EASTING: 1178196.72
DRILLING METHOD: Sonic
G.S. ELEV: 728.16 ft M.P. ELEV: 727.49 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:68.90 ft TOC TOTAL DEPTH: 89.4 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
O
<
�
m
55
60
65
i_
GNEISS, white and light gray, faint biotite rich bands,
70
garnet rich, (COMPETENT ROCK) (continued)
75
69-89' BGS, Competent core with mechanical fractures
—Benton ite Seal
80
83-83.5' BGS, Fractured, likely water bearing zone
•—Sand Filter Pack
Well Screen
85
90
Bottom of borehole 89.4'
Well screened 79.4-89.4'
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
m
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CO
a
0
P
CO
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z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: AS-9D
PROJECT NO: 1026.21
STARTED: 4/4/19 COMPLETED: 4/4/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545332.82 EASTING: 1178201.71
DRILLING METHOD: Sonic
G.S. ELEV: 727.77 ft M.P. ELEV: 727.07 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:22.75 ft TOC TOTAL DEPTH: 44.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
= 0
�
d
O-
o=
� z
o f
CONSTRUCTION
w
Q O
J
U)
=
DESCRIPTION
g
U
a Q
0
�
m
mLu
�— Protective Casing with
oc ing Uap
CL
SILTY CLAY, light brown, occasionally coarse sand,
ML
dry (FILL)
5
GP
GRAVEL, gneiss (FILL)
CH
CLAY, orange, stiff, cohesive, dry (FILL)
10
A
CL
SILTY CLAY, brown and orange, relict structure
2" PVC Riser
0
ML
(SAPROLITE)
Aquaguard Grout
15
A
20
CL
SILTY CLAY, mottled light to medium brown,
ee 1
ML
occasional relict texture (SAPROLITE)
-
25
°.
A '
30
—Benton ite Seal
QUARTZ SILLIMANITE AND BIOTITE GNEISS, white
35
with minor black bands, garnet rich, trace oxidation
RK
staining, low recovery, soft material appears to have
been washed out by drilling fluids (COMPETENT
BEDROCK)
`—Sand Filter Pack
Well Screen
40
RK
GNEISS, white and light gray, faint biotite rich bands,
garnet rich (COMPETENT ROCK)
42-44' BGS, Several mechanical and natural fractures
45
Bottom of borehole 44'
Well screened 34-44'
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

0
m
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J
CO
Q
Q
0
CO
Z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWQ-2BRQ
PROJECT NO: 1026.21
STARTED: 4/11/19 COMPLETED: 4/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545326.96 EASTING: 1173053.9
DRILLING METHOD: Sonic
G.S. ELEV: 683.54 ft M.P. ELEV: 685.64 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:12.80 ft TOC TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
U)
d
O ^
o
z
❑ E
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
W`
=
O
a Q
❑
0
�
m
m
f Protective casing with
GP
GRAVELFILL
e° locking cap
CL
CLAY, orange and red, trace gravel and organics
(stems), weakly plastic, moist (FILL)
°
CL
CLAY and SILT, orangish red, non -plastic,
5
non -cohesive, trace organics, stiff (SAPROLITE)
A
SILT, orangish brown to orange, occasional quartz
ML
sand grains, micaceous, loose, non -cohesive, 10-10.5'
10
gravel (SAPROLITE)
2" PVC Riser
- - - - - - - - - - - - - - - - - - - - - - - -
1
D-
Suface Casing
15
0
o ...
ML
SILT, light brown to brown with occasional sand to
gravel grains, loose, non -cohesive (SAPROLITE)
20
o.
25
A '
Sp
SAND, orangish brown, trace silt and gravel, fragments
of fresh gneiss, wet (SAPROLITE and PWR)
Aquaguard Grout
BIOTITE AMPHIBOLE GNEISS, black, green chlorite
—
stainin2LCOMPETENTROCKL--------
e
e
30
35
BIOTITE GNEISS, black, banded with gray to white
sillimanite-quartz gneiss, irregular banding thicknesses
with salt and pepper texture locally, banding typically
40
perpendicular to core axis, hard to very hard
mechanically broken throughout interval (COMPETENT
ROCK)
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWQ-2BRQ
PROJECT NO: 1026.21
STARTED: 4/11/19 COMPLETED: 4/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 545326.96 EASTING: 1173053.9
DRILLING METHOD: Sonic
G.S. ELEV: 683.54 ft M.P. ELEV: 685.64 ft
BOREHOLE DIAMETER: 10.25/6.25 IN
DEPTH TO WATER:12.80 ft TOC TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
O
<
�
m
—Bentonite Seal
55
BIOTITE GNEISS, black, banded with gray to white
sillimanite-quartz gneiss, irregular banding thicknesses
with salt and pepper texture locally, banding typically
perpendicular to core axis, hard to very hard
60
mechanically broken throughout interval (COMPETENT
ROCK) (continued)
—Sand Filter Pack
Well Screen
65
Bottom of borehole 68'
Well screened 58-68'
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-11 BR
PROJECT NO: 1026.21
STARTED: 11/1/18 COMPLETED: 11/15/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 546022.34 EASTING: 1176965.3
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 675.85 ft M.P. ELEV: 678.867 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 16.10 ft TOC TOTAL DEPTH: 177.0 ft TOC
NOTES:
LOGGED BY: G. Khang CHECKED BY: T. Grant
o
a 0
DESCRIPTION
_j
g
>
OO o
0
Q
WELL
CONSTRUCTION
wv
�J
Q
w
m0
d a
17
0
<n
U
—Protective Well Casing
CL
Fill: SILTY CLAY w/ sand and gravel, red -orange brown,
ML
----------------------------
fine, slightly moist, cohesive clumps, roots present (FILL)
5
`•
Cement Grout (Oft-57ft bgs)
10
15
Alluvium: SAND, brown, fine -medium, non -cohesive,
SP
slightly moist; moist silty layer at —15 ft; large subrounded
pebbles at 23ft (ALLUVIUM)
20
6" SCH 40 Surface Casing
(Oft-35ft bgs)
30
2" SCH 40 PVC RISER
35—:
,
_'-
RK
Gneiss: BIOTITE GNEISS, fresh, strong
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 5

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-11 BR
PROJECT NO: 1026.21
STARTED: 11/1/18 COMPLETED: 11/15/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 546022.34 EASTING: 1176965.3
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 675.85 ft M.P. ELEV: 678.867 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 16.10 ft TOC TOTAL DEPTH: 177.0 ft TOC
NOTES:
LOGGED BY: G. Khang CHECKED BY: T. Grant
_
o
=
a 0
U
_j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
DESCRIPTION
Q
w
m0
d a
45
,;
_ ;'
—Cement Grout (Oft-57ft bgs)
50
2" SCH 40 PVC RISER
55
— Bentonite Seal (57ft-62ft
60
_
RK
Gneiss: BIOTITE GNEISS, fresh, strong (continued)
bgs)
-
—Sand Filter Pack (62ft-75ft
bgs)
65
2" Pre -Pack Well Screen
-
(65ft-70ft bgs)
70
;
75
- _
-
-Bentonite BackfiII
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 5

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-11 BR
PROJECT NO: 1026.21
STARTED: 11/1/18 COMPLETED: 11/15/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 546022.34 EASTING: 1176965.3
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 675.85 ft M.P. ELEV: 678.867 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 16.10 ft TOC TOTAL DEPTH: 177.0 ft TOC
NOTES:
LOGGED BY: G. Khang CHECKED BY: T. Grant
_
o
=
a 0
U
-j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
DESCRIPTION
w
m0
d a
Q
85
- _
90
95
100
_
RK
Gneiss: BIOTITE GNEISS, fresh, strong (continued)
-Bentonite BackfiII
105
110
115
- _
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 5

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-11 BR
PROJECT NO: 1026.21
STARTED: 11/1/18 COMPLETED: 11/15/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 546022.34 EASTING: 1176965.3
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 675.85 ft M.P. ELEV: 678.867 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 16.10 ft TOC TOTAL DEPTH: 177.0 ft TOC
NOTES:
LOGGED BY: G. Khang CHECKED BY: T. Grant
_
o
=
a 0
U
DESCRIPTION
-j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
Q
w
m0
d a
-
Fracture at 122 ft w/ increased water production during
drilling
125
- _
Bentonite Backfill
130
135
140
_
RK
Gneiss: BIOTITE GNEISS, fresh, strong (continued)
Benton ite Backfill
145
Accessory garnet from —144 ft-164ft
150
155
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 4 OF 5

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-11 BR
PROJECT NO: 1026.21
STARTED: 11/1/18 COMPLETED: 11/15/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 546022.34 EASTING: 1176965.3
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 675.85 ft M.P. ELEV: 678.867 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 16.10 ft TOC TOTAL DEPTH: 177.0 ft TOC
NOTES:
LOGGED BY: G. Khang CHECKED BY: T. Grant
_
o
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a 0
U
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0-
>
OU o
O
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WELL
CONSTRUCTION
w
DESCRIPTION
Q
w
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d a
165
- _
-
-Bentonite BackfiII
RK
Gneiss: BIOTITE GNEISS, fresh, strong (continued)
170
Fracture at 172 ft; water production increased to 1-2 GPM
during drilling
175
Boring terminated at 177 ft bgs.
180
185
190
195
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
GreenvCarolina 29601
SynTerra Phone:l864 421- 9PAGE 5 OF 5

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PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-57BR
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/4/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544511.79 EASTING: 1176801.34
DRILLING METHOD: Sonic
G.S. ELEV: 727.42 ft M.P. ELEV: 730.26 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:32.27 ft TOC TOTAL DEPTH: 86.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY:
_ (�
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
00
a Q
0
U)
m
m
f Protective Casing with
Locking Gap
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, moist (FILL)
ML
SANDY SILT, brown, fine-grained, medium plasticity,
moist (FILL/SOIL)
5
—
CL
—cohesive,
--_—_—___--
SANDY FAT CLAY, tan brown, sand is fine, high
—
plasticity, cohesive, moist, residual foliation present
\ SAPROLITE/ALLUVIAL
CL
SANDY FAT CLAY, light orange/white, high plasticity,
cohesive, moist to wet (ALLUVIAL)
10
2" PVC Riser
SAND, orange grading to tan, medium- to
Sp
coarse -grained, trace well rounded gravel, non -plastic,
non -cohesive, wet, lens of black, coarse sand at 12'
Well Casing
BGS ALLUVIAL
Grout
SANDY SILT, orange brown, sand is fine-grained,
15
ML
non -plastic, cohesive, relic foliation present, moist
—
LSAPROLITD----------------�
MH
SANDY SILT, as above (SAPROLITE)
20
SAND with GRAVEL, orange brown, sand is medium-
SM
to coarse -grained, gravel is angular, chunks of severely
weathered rock, non -plastic, non -cohesive, dry to mois
(PARTIALLY WEATHERED ROCK)
22' Driller notes rock at 22' BGS
22-26' BGS, Slight fracturing
25
28' BGS, Good stained fracture zone
30
i
e°—Aquaguard Grout
35
BIOTITE GNEISS, white and black, fine- to
RK
medium -grained, strong, fresh to very slight weathering
(COMPETENT ROCK)
40
45
46-56' BGS, Driller lost water pressure for whole run
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

0
m
a
J
H
CO
Q
7
Q
0
H
CO
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-57BR
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/4/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544511.79 EASTING: 1176801.34
DRILLING METHOD: Sonic
G.S. ELEV: 727.42 ft M.P. ELEV: 730.26 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:32.27 ft TOC TOTAL DEPTH: 86.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY:
_ (D
d
O-
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p E
CONSTRUCTION
w
Q O
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DESCRIPTION
g
U
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51-52' BGS, Stained fracture
55
55' BGS, Very intensely fractured at (unstained)
60
60' BGS, Intense fracturing
65
68-70' BGS, Near vertical fracture, no staining
BIOTITE GNEISS, white and black, fine- to
RK
medium -grained, strong, fresh to very slight weathering
(COMPETENT ROCK) (continued)
70
—Bentonite Seal
75
77-79' and 81-82' BGS Near vertical fractures
`•�—Sand Filter Pack
80
Well Screen
85
Bottom of borehole 86'
Well Screened 76-86'
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
a
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-57BRU
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/4/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544510.18 EASTING: 1176794.97
DRILLING METHOD: Sonic
G.S. ELEV: 727.09 ft M.P. ELEV: 729.66 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:25.6 ft TOC TOTAL DEPTH: 46.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
a Q
0
U)
m
m
f Protective Casing with
Locking Gap
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, moist (FILL)
ML
SANDY SILT, brown, fine-grained, medium plasticity,
moist (FILL/SOIL)
5
_
CL
_cohesive, _ _ _ _ _ _ _ _ _ _ _
SANDY FAT CLAY, tan brown, sand is fine, high
2" PVC Riser
—
plasticity, cohesive, moist, residual foliation present
\ SAPROLITE/ALLUVIAL
CL
SANDY FAT CLAY, light orange/white, high plasticity,
cohesive, moist to wet (ALLUVIAL)
Well Casing
10
SAND, orange grading to tan, medium- to
Sp
coarse -grained, trace well rounded gravel, non -plastic,
non -cohesive, wet, lens of black, coarse sand at 12'
BGS ALLUVIAL
SANDY SILT, orange brown, sand is fine-grained,
15
ML
non -plastic, cohesive, relic foliation present, moist
Grout
—
LSAPROLITD----------------�
MH
SANDY SILT, as above (SAPROLITE)
20
SAND with GRAVEL, orange brown, sand is medium-
SM
to coarse -grained, gravel is angular, chunks of severely
weathered rock, non -plastic, non -cohesive, dry to mois
(PARTIALLY WEATHERED ROCK)
e°—Aquaguard Grout
22' Driller notes rock at 22' BGS
22-26' BGS, Slight fracturing
25
ee 1
28' BGS, Good stained fracture zone
30
—Bentonite Seal
BIOTITE GNEISS, white and black, fine- to
RK
medium -grained, strong, fresh to very slight weathering
35
(COMPETENT ROCK)
`•—Sand Filter Pack
40
Well Screen
45
Bottom of borehole 46'
Well Screened 36-46'
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-57S
PROJECT NO: 1026.21
STARTED: 4/2/19 COMPLETED: 4/2/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544513.93 EASTING: 1176810.27
DRILLING METHOD: Sonic
G.S. ELEV: 727.28 ft M.P. ELEV: 729.43 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:11.24 ft TOC TOTAL DEPTH: 19.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
00
a Q
0
U)
m
m
Protective Casing with
Locking Gap
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, moist (FILL)
ML
SANDY SILT, brown, fine-grained, medium plasticity,
e° —Aquaguard Grout
moist (FILL/SOIL)
5
_
CL
_cohesive, _ _ _ _ _ _ _ _ _ _ _
SANDY FAT CLAY, tan brown, sand is fine, high
2" PVC Riser
—
plasticity, cohesive, moist, residual foliation present
\ SAPROLITE/ALLUVIAL
CL
SANDY FAT CLAY, light orange/white, high plasticity,
cohesive, moist to wet (ALLUVIAL)
10
—Benton ite Seal
---------------------------
=
SAND, orange grading to tan, medium- to
Sp
coarse -grained, trace well rounded gravel, non -plastic,
non -cohesive, wet, lens of black, coarse sand at 12'
BGS ALLUVIAL
SANDY SILT, orange brown, sand is fine-grained,
15
ML
non -plastic, cohesive, relic foliation present, moist
—Sand Filter Pack
—
SAPROLITE
--------------------�
ss Well Screen
MH
SANDY SILT, as above (SAPROLITE)
20
Bottom of borehole 19'
Well Screened 14-19'
25
30
35
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 1

0
m
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Q
0
CO
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-58BR
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/29/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544541.16 EASTING: 1176863.43
DRILLING METHOD: Sonic
G.S. ELEV: 730.03 ft M.P. ELEV: 732.56 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:27.3 ft TOC TOTAL DEPTH: 86.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY:
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
cof
a Q
0
�
m
Protective Casing with
oc ing ap
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, dry to moist (FILL)
SANDY CLAY, red brown, sand is fine-grained
5
CL
medium plasticity, cohesive, moist to wet
—
FILL/RESIDUAL--------------
CH
FAT CLAY, orange/white, high plasticity, cohesive,
moist to wet (RESIDUAL SOIL, ALLUVIAL)
10
2" PVC Riser
SANDY CLAY, light orange/white grading to orange
CL
red, medium plasticity, cohesive, moist, lenses of light
gray fat clay (RESIDUAL SOIL, ALLUVIAL)
Well Casing
SANDY SILT light orange grading to medium brown
Grout
15
n ::.
'
ML
and trace gravel, sand grading from coarse to fine,
non -plastic, cohesive, moist, gravel is subangular to
A
R.
rounded, relic foliation noted SAPROLITE
SAPROLITE transition zone CONTACT at 17BGS
SM
SILTY SAND with GRAVEL, sand, brown, coarse- to
medium grained, gravel is subangular, non -plastic,
20
non -cohesive, wet grading to moist, relict foliation and
structure noted (SAPROLITE/PARTIALLY
WEATHERED ROCK
22' BGS joint showing iron staining
25
1
30
BIOTITE GNEISS, black with white bands, fresh,
slightly fractured, little to no staining in joints
(PARTIALLY WEATHERED grading to COMPETENT
ROCK)
35
RK
35-37' BGS, Intense to very intense fraturing, iron
—Aquaguard Grout
staining present in fractures
40
40-42' BGS,Intense fracturing with no staining
45
46-76' BGS, Minimal fracturing/no staining
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

0
m
a
J
H
CO
Q
7
Q
0
H
CO
z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-58BR
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/29/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544541.16 EASTING: 1176863.43
DRILLING METHOD: Sonic
G.S. ELEV: 730.03 ft M.P. ELEV: 732.56 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:27.3 ft TOC TOTAL DEPTH: 86.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
O
<
�
m
55
46-76' BGS, Minimal fracturing/no staining (continued)
60
65
BIOTITE GNEISS as above
RK
70
—Bentonite Seal
75
76-86' BGS, A few fractures
`•�—Sand Filter Pack
80
Well Screen
85
Bottom of borehole 86'
Well screened 76-86'
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1lle, South ling 29601
GreenvSynTerra
Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-58BRU
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/1/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544535.18 EASTING: 1176858.47
DRILLING METHOD: Sonic
G.S. ELEV: 729.60 ft M.P. ELEV: 731.83 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:16.46 ft TOC TOTAL DEPTH: 36.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY: T. Grant
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
cof
Protective Casing with
oc ing ap
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, dry to moist (FILL)
SANDY CLAY, red brown, sand is fine-grained
5
CL
medium plasticity, cohesive, moist to wet
2" PVC Riser
—
FILL/RESIDUAL--------------
CH
FAT CLAY, orange/white, high plasticity, cohesive,
moist to wet (RESIDUAL SOIL, ALLUVIAL)
Well Casing
10
SANDY CLAY, light orange/white grading to orange
CL
red, medium plasticity, cohesive, moist, lenses of light
Aquaguard Grout
gray fat clay (RESIDUAL SOIL, ALLUVIAL)
SANDY SILT light orange grading to medium brown
Grout
15
n ::.
'
ML
and trace gravel, sand grading from coarse to fine,
non -plastic, cohesive, moist, gravel is subangular to
A
rounded, relic foliation noted SAPROLITE
-
SAPROLITE transition zone CONTACT at 17BGS
SM
SILTY SAND with GRAVEL, sand, brown, coarse- to
medium grained, gravel is subangular, non -plastic,
20
non -cohesive, wet grading to moist, relict foliation and
structure noted (SAPROLITE/PARTIALLY
WEATHERED ROCK
25
—Benton ite Seal
BIOTITE GNEISS, black with white bands, fresh,
RK
slightly fractured, little to no staining in joints
(PARTIALLY WEATHERED grading to COMPETENT
ROCK)
30
—Sand Filter Pack
Well Screen
35
Bottom of borehole 36'
Well screened 31-36'
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-58S
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544530.75 EASTING: 1176855.01
DRILLING METHOD: Sonic
G.S. ELEV: 729.00 ft M.P. ELEV: 731.74 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:14.39 ft TOC TOTAL DEPTH: 16.0 ft BGS
NOTES:
LOGGED BY: M. Craig CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
a Q
0
U)
m
m
—Protective Casing with
Locking Gap
—Benton ite Seal
ML
SANDY SILT, red brown, sand is fine-grained, low
plasticity, cohesive, dry to moist (FILL)
2" PVC Riser
SANDY CLAY, red brown, sand is fine-grained
5
CL
medium plasticity, cohesive, moist to wet
—
FILL/RESIDUAL
CH
FAT CLAY, orange/white, high plasticity, cohesive,
moist to wet (RESIDUAL SOIL, ALLUVIAL)
—Sand Filter Pack
10
Well Screen
SANDY CLAY, light orange/white grading to orange
CL
red, medium plasticity, cohesive, moist, lenses of light
gray fat clay (RESIDUAL SOIL, ALLUVIAL)
SANDY SILT light orange grading to medium brown
"' 1
15
n ::.
'
ML
and trace gravel, sand grading from coarse to fine,
non -plastic, cohesive, moist, gravel is subangular to
rounded, relic foliation noted SAPROLITE
Bottom of borehole 16'
Well screened 4.8-14.8'
20
25
30
35
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 1

0
m
Q
J
CO
Q
Q
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-59BR
PROJECT NO: 1026.21
STARTED: 3/25/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544840.25 EASTING: 1177222.83
DRILLING METHOD: Sonic
G.S. ELEV: 753.72 ft M.P. ELEV: 756.06 ft
BOREHOLE DIAMETER: 9.25/6.25 IN
DEPTH TO WATER:27.98 ft TOC TOTAL DEPTH: 81.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY:
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
cof
Protective Casing with
oc ing ap
5
FAT CLAY with SAND (CH) and SANDY SILT (M) ,
CH
sand, red (7.5R 4/6), high plasticity, moist, few roots,
sandy silt , dark brown (7.5YR 3/2), cohesive, low
plasticiy (FILL)
10
6-16' BGS, Poor recovery, driller attempted to flush
2" PVC Riser
core barrel and lost about 1/2 of run
Grout
n
15
0
16-32' BGS, Variably wet and dry by texture
20
b.
SAND with SILT (SW-SM) to SANDY SILT (ML) very
o
dark grayish brown (10YR 3/2), dark red (1 OR 3/6),
SW
yellow (10YR 7/6), white (10YR 9.5/1), moist,
SM
non -plastic to low plasticity, non -cohesive to cohesive,
p .
...:
some relict gneissic and schistose structure,
micaceous (SAPROLITE)
25
0
Well Casing
30
a
A
Aquaguard Grout
35
35-38' BGS, Wet
BIOTITE GNEISS AND CLAYEY SAND (SC), very
weak to strong, competent to intensely disintegrated,
RK
abundant weathered fragments of biotite gneiss and
quartzite, fines non -plastic to medium plasticity
40
(WEATHERED ROCK)
45
BIOTITE GNEISS, strong, competent, grayish black
(N2), and bluish white (5B 9/1), trace garnets and
pyrite, multiple zones of intense iron and manganese
RK
staining and evident fracturing (COMPETENT ROCK)
1:14
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-59BR
PROJECT NO: 1026.21
STARTED: 3/25/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544840.25 EASTING: 1177222.83
DRILLING METHOD: Sonic
G.S. ELEV: 753.72 ft M.P. ELEV: 756.06 ft
BOREHOLE DIAMETER: 9.25/6.25 IN
DEPTH TO WATER:27.98 ft TOC TOTAL DEPTH: 81.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
a Q
❑
o�
O
<
�
m0
55
BIOTITE GNEISS, as above, fresh, dominant gneissic
texture, moderate to intensely foliated (0-30 degrees),
some zones of dominant quartzite
60
62' BGS, Natural -50 degree fracture, staining absent
62.5' BGS, Fracture zone with abundant iron staining
65
66.5-68' BGS, Staining on near -horizontal fracture
RK
surfaces
—Benton ite Seal
70
73.5-75.5' BGS, Fracture zone moderately to intensely
fractured, prevelent iron oxidization staining
75
—Sand Filter Pack
77-78' BGS, Multiple natural fracture faces with
Well Screen
prevelant staining
81' BGS, Iron staining prevelant
Bottom of borehole 81'
Well screened 73.9-78.9'
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
a
J
CO
Q
Q
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-59D
PROJECT NO: 1026.21
STARTED: 3/26/19 COMPLETED: 3/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544839.41 EASTING: 1177219.26
DRILLING METHOD: Sonic
G.S. ELEV: 753.62 ft M.P. ELEV: 756.53 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:28.65 ft TOC TOTAL DEPTH: 46.2 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: E. Yurkovich
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
a Q
°C
m
f Protective Casing with
oc ing ap
5
FAT CLAY with SAND (CH) and SANDY SILT (M),
CH
sand, red (7.513 4/6), high plasticity, moist, few roots,
sandy silt , dark brown (7.5YR 3/2), cohesive, low
plasticiy (FILL)
10
2" PVC Riser
Grout
n
15
Aquaguard Grout
0
16-32' BGS, Variably wet and dry by texture
Well Casing
20
b.
SAND with SILT (SW-SM) to SANDY SILT (ML) very
SW
dark grayish brown 10YR 3/2 dark red 1 OR 3/6 )
SM
yellow (10YR 7/6), white (10YR 9.5/1), moist,
non -plastic to low plasticity, non -cohesive to cohesive,
some relict gneissic and schistose structure, micaceou
25
0
30
A
_
—Benton ite Seal
35
35-38' BGS, Wet
BIOTITE GNEISS AND CLAYEY SAND (SC), very
weak to strong, competent to intensely disintegrated,
RK
abundant weathered fragments of biotite gneiss and
quartzite, fines non -plastic to medium plasticity
40
(WEATHERED ROCK)
°; —Sand Filter Pack
Well Screen
BIOTITE GNEISS, strong, competent, grayish black
45
RK
(1\12), and bluish white (5B 9/1), trace garnets and
pyrite, multiple zones of intense iron and manganese
staining and evident fracturing COMPETENT ROCK
Bottom of borehole 46.2'
Well screened 36.2-46.2'
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

0
m
Q
J
H
CO
Q
7
Q
0
H
CO
z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-59S
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544835.06 EASTING: 1177226.48
DRILLING METHOD: Sonic
G.S. ELEV: 753.50 ft M.P. ELEV: 756.42 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:24.8 ft TOC TOTAL DEPTH: 32.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: E. Yurkovich
_ (D
U
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
=
OU
a Q
0
�
m
m
Protective Casing with
oc ing ap
5
2" PVC Riser
FAT CLAY with SAND (CH) and SANDY SILT (M) ,
CH
sand, red (7.513 4/6), high plasticity, moist, few roots,
FAquaguard Grout
sandy silt, dark brown (7.5YR 3/2), cohesive, low
plasticiy (FILL)
10
—Benton ite Seal
15
0
16-32' BGS, Variably wet and dry by texture
b.
`''•—Sand Filter Pack
2p
Well Screen
SAND with SILT (SW-SM) to SANDY SILT (ML) very
o
dark grayish brown (10YR 3/2), dark red (1 OR 3/6),
SW
yellow (10YR 7/6), white (10YR 9.5/1), moist,
SM
non -plastic to low plasticity, non -cohesive to cohesive,
p .
...:
some relict gneissic and schistose structure,
25
micaceous
1
.
A
.
—Bentonite Backplug
30
Bottom of borehole 32'
Well screened 17.4-22.4'
35
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

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0
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0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA60BR
PROJECT NO: 1026.21
STARTED: 3/28/19 COMPLETED: 4/1/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544206.57 EASTING: 1175769.48
DRILLING METHOD: Sonic
G.S. ELEV: 761.90 ft M.P. ELEV: 763.87 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:23.75 ft TOC TOTAL DEPTH: 67.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
co0
Protective Casing with
oc ing ap
SILT, brownish orange, minor clay and gravel, fill or
5
ML
reworked soil, loose, non -cohesive, dry
(FILL/REWORKED SOIL)
10
SILT and GNEISS, brownish orange, silt (50%) and
gneiss(50%), loose, non -cohesive, dry, gneiss is blac
and white banded with trace weathering PWR
2" PVC Riser
15
20
23-24' BGS, Very broken zone with trace iron oxidation
1
—Aquaguard Grout
25
26' BGS Fracture, steeply dipping, no oxidation or
signs of weathering
GNEISS, black and white banding with salt and pepper
30
appearance locally, very hard, mechanically broken in
RK
"disks" throughout interval 26' fracture, steeply dipping,
no oxidation or signs of weathering (COMPETENT
ROCK)
35
Bottom of borehole 67'
Well screened 55.5-65.5'
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA60BR
PROJECT NO: 1026.21
STARTED: 3/28/19 COMPLETED: 4/1/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544206.57 EASTING: 1175769.48
DRILLING METHOD: Sonic
G.S. ELEV: 761.90 ft M.P. ELEV: 763.87 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:23.75 ft TOC TOTAL DEPTH: 67.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
o f
CONSTRUCTION
w
Q O
DESCRIPTION
g
U
0
a Q
❑
o�
O
<
�
m
—Benton ite Seal
55
GNEISS, black and white banding with salt and pepper
appearance locally, very hard, mechanically broken in
RK
"disks" throughout interval 26' fracture, steeply dipping,
no oxidation or signs of weathering (COMPETENT
' —Sand Filter Pack
60
ROCK) (continued)
Well Screen
65
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-60BRU
PROJECT NO: 1026.21
STARTED: 3/28/19 COMPLETED: 3/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544221.74 EASTING: 1175769.31
DRILLING METHOD: Sonic
G.S. ELEV: 761.67 ft M.P. ELEV: 763.99 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:18.17 ft TOC TOTAL DEPTH: 35.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
co0
Protective Casing with
oc ing ap
SILT, brownish orange, minor clay and gravel, fill or
5
ML
reworked soil, loose, non -cohesive, dry
(FILL/REWORKED SOIL)
—Aquaguard Grout
10
RK
SILT and GNEISS, brownish orange, silt (50%) and
gneiss(50%), loose, non -cohesive, dry, gneiss is blac
and white banded with trace weathering PWR
2" PVC Riser
15
—Bentonite Seal
20
GNEISS, black and white banding with salt and pepper
appearance locally, very hard, mechanically broken in
RK
"disks" throughout interval 26' fracture, steeply dipping,
no oxidation or signs of weathering (COMPETENT
25
ROCK)
23-24' BGS, Very broken zone with trace iron oxidation
,'Sand Filter Pack
26' BGS Fracture, steeply dipping, no oxidation or
signs of weathering
Well Screen
30
35
Bottom of borehole 35'
Well screened 22-32'
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 1

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0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-61 BR
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/3/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544420.41 EASTING: 1176094.64
DRILLING METHOD: Sonic
G.S. ELEV: 761.24 ft M.P. ELEV: 763.74 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:33.04 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
00
a Q
0
U)
m
m
Protective Casing with
Locking Gap
5
SANDY LEAN CLAY (CL) and SANDY SILT (ML), clay,
red (10YR, 4/8), SAND, fine-grained, moist to dry,
10
CL
medium plasticity, trace schistose structure,
micaceous, silt, light brown (7.5YR 6/4), dry, cohesive,
low plasticity, trace schistose structure, micaceous
(SAPROLITE USED AS FILL)
15
20
-
- - - - - - - - - - - - - - - - -
e
e
Grout
A
25
0
2" PVC Riser
SILTY SAND (SM) reddish brown (2.5YR 4/4),
yellowish brown (10YR 5/8), white (N8) and very dark
SM
brown (10YR 2/2) in bands, sand, fine- to
coarse -grained, trace relict shcistose and gneissic
'A7.structure,
dry, micaceous (SAPROLITE)
30
A '
Surface Casing
35
D
SILTY SAND with GRAVEL (SM), as above with
SM
frequent large gravel and cobbles of highly weathered
biotite gneiss and mica schist, dry (PARTIALLY
WEATHERED ROCK)
40
Aquaguard Grout
41' BGS, Drilling with water
BIOTITE GNEISS, grayish black (N2) and very light
gray (N8), moderate to very strong with segments of
45
RK
dominant quartzite with frequent interlayers of mica,
frequent zones of heavy iron staining and moderately
disintegrated rock at 44', 46-47', 48-51' and 55-57'
(Competent Rock)
46-66' BGS, Driller reports drilling going from hard to
very soft intermittent core loss expected to be highly
weathered soil -like material
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 3

0
m
a
J
CO
Q
Q
0
CO
Z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-61 BR
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/3/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544420.41 EASTING: 1176094.64
DRILLING METHOD: Sonic
G.S. ELEV: 761.24 ft M.P. ELEV: 763.74 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:33.04 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: T. Grant
= (7
�
d
O-
o=
z
p E
CONSTRUCTION
w
Q O
U)
DESCRIPTION
g
U
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O
55
56-66' BGS, Mostly highly weatered soil -like material
most of core lost due to drilling with water
BIOTITE GNEISS, grayish black (N2) and very light
RK
gray (N8), moderate to very strong with segments of
dominant quartzite with frequent interlayers of mica,
frequent zones of heavy iron staining and moderately
60
disintegrated rock at 44', 46-47, 48-51' and 55-57'
(Competent Rock) (continued)
65
67' BGS, -45 degree fracture, staining absent
70
75
80
BIOTITE GNEISS, dominant, strong to very strong,
—Benton ite Seal
RK
fresh, trace garnet and pyrite, moderate to intense
foliation
85
85-87' BGS, Near vertical fracture, very minor iron
staining
—Sand Filter Pack
90
90-92' BGS, Near vertical fracture, staining absent
Well Screen
95
—Bentonite Backplug
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 2 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-61 BR
PROJECT NO: 1026.21
STARTED: 4/1/19 COMPLETED: 4/3/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544420.41 EASTING: 1176094.64
DRILLING METHOD: Sonic
G.S. ELEV: 761.24 ft M.P. ELEV: 763.74 ft
BOREHOLE DIAMETER: 10/6 IN
DEPTH TO WATER:33.04 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: T. Grant
= (7
U)
O
CONSTRUCTIONdg
w
Q O
U)
_
DESCRIPTION
=
Q-
❑
o�
O
<
�
m0
BIOTITE GNEISS, dominant, strong to very strong,
—Bentonite Backplug
RK
fresh, trace garnet and pyrite, moderate to intense
foliation (continued)
105
Bottom of borehole 107'
Well screened 88.4-93.4'
110
115
120
125
130
135
140
145
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 3 OF 3

0
a
co
a
a
0
Z
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-61 BRU
PROJECT NO: 1026.21
STARTED: 3/29/19 COMPLETED: 3/29/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544410.5 EASTING: 1176094.08
DRILLING METHOD: Sonic
G.S. ELEV: 761.75 ft M.P. ELEV: 764.08 ft
BOREHOLE DIAMETER: IN
DEPTH TO WATER:37.62 ft TOC TOTAL DEPTH: 57.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
U
LU
00
a Q
0
U)
m
m
- Protective Casing with
Locking Gap
5
5' BGS, Unsaturated sample collected 3-29-19, 1250
SANDY LEAN CLAY (CL) and SANDY SILT (ML), clay,
red (10YR, 4/8), sand, fine-grained, moist to dry,
10
CL
medium plasticity, trace schistose structure,
2" PVC Riser
micaceous, sandy silt, light brown (7.5YR 6/4), dry,
cohesive, low plasticity, trace schistose structure,
micaceous (SAPROLITE used as FILL)
15
16-17' BGS, Light red (2.5YR 6/6)) and white (N9) with
gravel
e —Aquaguard Grout
20
A
25
°
SILTY SAND (SM) reddish brown (2.5YR 4/4),
°
yellowish brown (10YR 5/8), white (N8) and very dark
SM
brown (10YR 2/2) in bands, sand, fine- to
coarse -grained, trace relict shcistose and gneissic
structure, dry, micaceous (SAPROLITE)
30
A '
32' BGS, Unsaturated soil sample collected 3 29 19,
0
1300
35
37-38' BGS, Moist
SILTY SAND with GRAVEL, as above with frequent
SM
large gravel and cobbles of highly weathered biotite
e 1
gneiss and mica schist, dry (PARTIALLY
WEATHERED ROCK)
40
41' BGS, Drilling becomes very hard, begin drilling with
water
—Benton ite Seal
41-57' BGS, Significant core loss, suspected to be
hightly weathered material in fracture zones
BIOTITE GNEISS, grayish black (N2) and very light
gray (N8), moderate to very strong with segments of
45
RK
dominant quartzite with frequent interlayers of mica,
frequent zones of heavy iron staining and moderately
` —Sand Filter Pack
disintegrated rock at 44', 46-47', 48-51' and 55-57'
(COMPETENT ROCK)
Well Screen
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-61 BRU
PROJECT NO: 1026.21
STARTED: 3/29/19 COMPLETED: 3/29/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544410.5 EASTING: 1176094.08
DRILLING METHOD: Sonic
G.S. ELEV: 761.75 ft M.P. ELEV: 764.08 ft
BOREHOLE DIAMETER: IN
DEPTH TO WATER:37.62 ft TOC TOTAL DEPTH: 57.0 ft BGS
NOTES:
LOGGED BY: T. Grant CHECKED BY: T. Grant
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
a Q
❑
o�
O
<
�
m0
BIOTITE GNEISS, grayish black (N2) and very light
Well Screen
gray (N8), moderate to very strong with segments of
IRK
dominant quartzite with frequent interlayers of mica,
frequent zones of heavy iron staining and moderately
*,;` —Sand Filter Pack
55
disintegrated rock at 44', 46-47', 48-51' and 55-57'
(COMPETENT ROCK) (continued)
Bottom of borehole 57'
Well screened 46.4-56.4'
60
65
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
m
a
C0
a
a
0
C0
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-62BR
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544801.58 EASTING: 1176571.36
DRILLING METHOD: Sonic
G.S. ELEV: 735.30 ft M.P. ELEV: 735.10 ft
BOREHOLE DIAMETER: IN
DEPTH TO WATER:62.56 ft TOC TOTAL DEPTH: 66.0 ft BGS
NOTES:
LOGGED BY: V. Hunter CHECKED BY: T. Grant
= (7
�
U)
d
O-
o=
� z
o f
CONSTRUCTION
w v
Q O
_
DESCRIPTION
g
¢
U
w
a Q
o
=�
(�
�
m
m0
U
-Flush Mn y r
5
0
T.
b.
Grout
Surface Casing
SM
SILTY SAND, red brown (10YR 5/4), dry, micaceous,
non cohesive, non plastic, (SAPROLITE)
10
A '
15
D
a.
A
20
;
SILTY SAND, brown (10YR 5/3), dry, non cohesive,
2" PVC Riser
SM
non -plastic, (SAPROLITE/PARTIALLY WEATHERED
o
ROCK)
25
—Aquaguard Grout
30
35
GNEISS with quartz, dark grey, weathered zone with
RK
staining at 25' (COMPETENT ROCK)
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-62BR
PROJECT NO: 1026.21
STARTED: 3/27/19 COMPLETED: 3/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544801.58 EASTING: 1176571.36
DRILLING METHOD: Sonic
G.S. ELEV: 735.30 ft M.P. ELEV: 735.10 ft
BOREHOLE DIAMETER: IN
DEPTH TO WATER:62.56 ft TOC TOTAL DEPTH: 66.0 ft BGS
NOTES:
LOGGED BY: V. Hunter CHECKED BY: T. Grant
= (7
�
d
O-
o
z
p E
CONSTRUCTION
w
Q O
U)
DESCRIPTION
g
U
=
a Q
O
—Benton ite Seal
55
GNEISS as above (COMPETENT ROCK)
RK
56-66' BGS, Poor recovery, sections of weathered,
rounded rock
60
Sand Filter Pack
Well Screen
65
Bottom of borehole 66'
Well screened 56-66'
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-62BRU
PROJECT NO: 1026.21
STARTED: 3/28/19 COMPLETED: 3/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544799.382 EASTING: 1176582.038
DRILLING METHOD: Sonic
G.S. ELEV: 734.651 ft M.P. ELEV: 735.076 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:7.89 ft TOC TOTAL DEPTH: 27.0 ft BGS
NOTES:
LOGGED BY: V. Hunter CHECKED BY: T. Grant
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w v
Q O
<
p
DESCRIPTION
g
¢
U
w
p
a Q
p
C7
�
m
m0
U
-Flush Mn y r
A
5
0
b.
2" PVC Riser
1
0
SM
SILTY SAND, red brown (10YR 5/4), dry, micaceous,
e° �—Aquaguard Grout
non -cohesive, non -plastic, (SAPROLITE)
10
A '
15
D
a.
—Benton ite Seal
20
SILTY SAND, brown (10YR 5/3), dry, non cohesive,
SM
non -plastic, (SAPROLITE/PARTIALLY WEATHERED
o
ROCK)
`'—Sand Filter Pack
25
IRK
GNEISS with quartz, dark grey, weathered zone with
Well Screen
staining at 25' (COMPETENT ROCK)
Bottom of borehole 27'
Well screened 22-27'
30
35
40
45
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 1

0
m
a
CO
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-63BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 542867.91 EASTING: 1177875.65
DRILLING METHOD: Sonic
G.S. ELEV: 812.86 ft M.P. ELEV: 815.37 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:51.8 ft TOC TOTAL DEPTH: 76.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum/V. Hunter CHECKED BY: T. Grant
_
U
d
O^
o
0 z
o f
CONSTRUCTION
w v
6
Q O
J
DESCRIPTION
g
U
LU
m OU
a Q
0
U)
m
Protective Casing with
CL
CLAYEY SILT and ORGANICS, brown (7.5 YR 4/3 to
Locking Gap
ML
black (7.5YR 2.5/1) trace fine- to coarse -grained sand,/'
SM
\ UU moist RESIDM
1----�
T.
—
— -------------/
SILTY SAND, red (2.5YR 5/8) to yellowish red (5YR
`5/8) fine- to coarse-grrained=trace gravel (RESIDUUM)'
SM
SILTY SAND, reddish brown (5YR 4/3), fine- to
5
coarse -grained, trace gravel, dry (RESIDUUM)
A
SILTY SAND and GRAVEL (weathered rock
SM
fragments), reddish yellow (5YR6/8 to 5YR 6/6) with
white (5YR 8/1) mottling, 2-12" layers, fine- to
10
coarse -grained, dry (SAPROLITE)
A
KAOLIN and SANDY SILT, kaolin, white (5YR 8/1, dry,
ML
silt, yellowish red (5YR 5/8), mottled white, 4-16"
o:
layers, (SAPROLITE)
15
2" PVC Riser
RK
BIOTITE GNEISS, white to black, partially weathered,
A
dry LSAPROLIT9
— — — — — — — — — — — — — —
A
20
Surface Casing
o :
SANDY SILT, brown (7.5 YR 4/2, 7.5YR 4/4), trace
ML
gravel, dry to damp, micaceous, relict foliation, 6-12"
layers and clayey silt seams (to 3"), yellowish red (5YR
b.
5/8 to 5YR 4/6) (SAPROLITE)
25
—
------------------------
°
°
Grout
A
0
Aquaguard Grout
30
b.
SANDY SILT, brown (5YR 4/3), pink (5YR 7/3), reddish
35
:0
ML
brown (5YR4/4) and white (5YR 4/1), 4 12" layers, dry
to damp, micaceous, relict foliation, weathered rock
A '
fragments (SAPROLITE)
40
D
a
43-44' BGS, Moist
A
45
SANDY SILT, reddish brown (5YR 5/4), dark reddish
ML
gray (5YR 4/2), dark reddish brown (5YR 3/3), wet,
micaceous, relict foliation, white mottling (SAPROLITE)
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-63BRU
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/27/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 542867.91 EASTING: 1177875.65
DRILLING METHOD: Sonic
G.S. ELEV: 812.86 ft M.P. ELEV: 815.37 ft
BOREHOLE DIAMETER: 9.25/6 IN
DEPTH TO WATER:51.8 ft TOC TOTAL DEPTH: 76.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum/V. Hunter CHECKED BY: T. Grant
= (7
�
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
a Q
0
ML
RK
BIOTITE GNEISS, white and black, abundant quartz,
iron staining (PARTIALLY WEATHERED ROCK)
55
60
BIOTITE GNEISS, dark gray to black and white,
—Benton ite Seal
RK
abundant quartz, grading to granitic gneiss, white with
thin black layers (COMPETENT ROCK)
65
RK
GRANITIC GNEISS, white with thin black layers
Sand Filter Pack
70
(foliation), few garnets (COMPETENT ROCK)
Well Screen
72-73.5' BGS, Some staining, potential fracture zone
75
RK
GRANITIC GNEISS as above, abundant garnets
---------------------------
Bottom of borehole 76'
Well screened 66-76'
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

0
a
CO
CO
a
0
CO
z
0
PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-63S
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/21/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 542858.22 EASTING: 1177875.49
DRILLING METHOD: Sonic
G.S. ELEV: 813.29 ft M.P. ELEV: 815.08 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:50.29 ft TOC TOTAL DEPTH: 51.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum CHECKED BY: T. Grant
_ (D
U
U)
d
O^
o
0 z
o f
CONSTRUCTION
w v
Q O
J
DESCRIPTION
g
U
LU
m 00
a Q
0
U)
m
Protective Casing with
CL
CLAYEY SILT and ORGANICS, brown (7.5 YR 4/3 to
Locking Gap
ML
black (7.5YR 2.5/1) trace fine- to coarse -grained sand,/'
SM
\ UU moist RESIDM
1----�—
—
-------------/
SILTY SAND, red (2.5YR 5/8) to yellowish red (5YR
`5/8)fine- to coarse -grained, gravel (RESIDUUM)'
SM
SILTY SAND, reddish brown (5YR 4/3), fine- to
5
coarse -grained, trace gravel, dry (RESIDUUM)
A
SILTY SAND and GRAVEL (weathered rock
SM
fragments), reddish yellow (5YR6/8 to 5YR 6/6) with
white (5YR 8/1) mottling, 2-12" layers, fine- to
10
coarse -grained, dry (SAPROLITE)
A
KAOLIN and SANDY SILT, kaolin, white (5YR 8/1, dry,
ML
silt, yellowish red (5YR 5/8), mottled white, 4-16"
o:
layers, (SAPROLITE)
15
2" PVC Riser
RK
BIOTITE GNEISS, white to black, partially weathered,
dry SAPROLIT9—
A
—Aquaguard Grout
20
o :
SANDY SILT, brown (7.5 YR 4/2, 7.5YR 4/4), trace
ML
gravel, dry to damp, micaceous, relict foliation, 6-12"
layers and clayey silt seams (to 3"), yellowish red (5YR
b.
5/8 to 5YR 4/6) (SAPROLITE)
25
A
30
0
b.
SANDY SILT, brown (5YR 4/3), pink (5YR 7/3), reddish
35
:0
ML
brown (5YR4/4) and white (5YR 4/1), 4 12" layers, dry
to damp, micaceous, relict foliation, weathered rock
A '
fragments (SAPROLITE)
40
A.
.
—Benton ite Seal
43-44' BGS, Moist
SANDY SILT, reddish brown (5YR 5/4), dark reddish
45
A ::'
` ''
ML
gray (5YR 4/2), dark reddish brown (5YR 3/3), wet,
—
micaceous, relict foliation, w_hite_mottlinq SAPRO_LITE,)
A
SANDY SILT, reddish brown (5yR 5/4, dark reddish
Sand Filter Pack
ML
gray (5YR 4/2) and dark reddish brown (5YR 3/3), white
Well Screen
0
mottling, wet, micaceous, relict foliation (SAPROLITE)
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
ling 29601
synTeraGreenville,999
rPhone 864 421 9PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-63S
PROJECT NO: 1026.21
STARTED: 3/21/19 COMPLETED: 3/21/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 542858.22 EASTING: 1177875.49
DRILLING METHOD: Sonic
G.S. ELEV: 813.29 ft M.P. ELEV: 815.08 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER:50.29 ft TOC TOTAL DEPTH: 51.0 ft BGS
NOTES:
LOGGED BY: M. Mastbaum CHECKED BY: T. Grant
= (7
�
U)
d
O-
o=
� z
p E
CONSTRUCTION
w v
Q O
DESCRIPTION
g
U
a Q
C7
<
�
co
ML
-
Bottom of borehole 51'
Well screened 46-51'
55
60
65
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1lle, South ling 29601
GreenvSynTerra
Phone [phone] PAGE 2 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-65BR
PROJECT NO: 1026.21
STARTED: 10/23/18 COMPLETED: 11/6/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 544539.746 EASTING: 1177120.115
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 751.233 ft M.P. ELEV: 754.070 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 66.31 ft TOC TOTAL DEPTH: 83.0 ft TOC
NOTES:
LOGGED BY: D. Campbell CHECKED BY: T. Grant
o
a 0
DESCRIPTION
_j
g
>
OO o
0
d Q
WELL
CONSTRUCTION
wv
�J
Q
w
m0
a
0
<n
U
—Protective Well Casing
SC
Fill: CLAYEY SAND (SC), dark red (2.5YR 3/6), fine to
medium, dry (FILL)
5
Cement Grout (Oft-38ft bgs)
—
SC
------------------------
Fill: CLAYEY SAND with GRAVEL (SC), strong brown
(7.5 YR 5/6), fine to coarse, dry (FILL)
10
15
Sandy Silt: SANDY SILT (ML), dark brown (7.5 YR 3/2) to
ML
brown (7.5YR 5/2), non -plastic, non -cohesive, moist
(SAPROLITE)
6" SCH 40 PVC Surface
20
Casing (Oft-38.5ft bgs)
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
_
Gneiss: BIOTITE GNEISS, pale yellowish brown (10YR
'
RK
6/2), fine to medium, micaceous, moderately to intensely
- -
weathered (WEATHERED ROCK)
30
Sandy Silt: SANDY SILT (ML), moderate yellowish brown
ML
(10YR 5/4), non -plastic, non -cohesive, dry
2" SCH 40 PVC Riser
-
(SAPROLITE/WEATHERED ROCK)
- - - - - - - - - - - - - - - - - - - - - - - -
_
35
'
-
Zone of intense weathering at 35.5 ft-36.5ft
- =
RK
Gneiss: BIOTITE GNEISS, medium dark gray (N4), trace
'
garnet, fine to coarse, slightly to moderately weatehered
- _ -
(COMPETENT ROCK)
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-65BR
PROJECT NO: 1026.21
STARTED: 10/23/18 COMPLETED: 11/6/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 544539.746 EASTING: 1177120.115
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 751.233 ft M.P. ELEV: 754.070 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 66.31 ft TOC TOTAL DEPTH: 83.0 ft TOC
NOTES:
LOGGED BY: D. Campbell CHECKED BY: T. Grant
_
o
=
a 0
U
DESCRIPTION
_j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
Q
w
m0
d a
45
- _
---Bentonite
Seal (38ft-55.5ft
"
bgs)
_/ _
Gneiss: BIOTITE GNEISS, medium dark gray (N4), trace
50
RK
garnet, fine to coarse, slightly to moderately weatehered
_ -
(COMPETENT ROCK) (continued)
55
—Sand Filter Pack
"
(55.5ft-78ft bgs)
60
-
RK
Gneiss: QUARTZ -FELDSPAR GNEISS, white (N9) to very
- -
-
light gray (N8), w/ garnet, fresh (COMPETENT ROCK)
- - - - - - - - - - - - - - - - - - - - - - - -
_
65—
- _
--'-2"
2" Pre -Pack Well Screen
-
(62ft-72ft bgs)
70
-
Gneiss: BIOTITE GNEISS, medium dark gray (N4), trace
RK
garnet, fine to coarse, slightly weathered to fresh
'
(COMPETENT ROCK)
75
_
i
'
CLIENT: Duke Energy Carolinas
Synra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-65BR
PROJECT NO: 1026.21
STARTED: 10/23/18 COMPLETED: 11/6/18
DRILLING COMPANY: Geologic Exploration
NORTHING: 544539.746 EASTING: 1177120.115
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 751.233 ft M.P. ELEV: 754.070 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 66.31 ft TOC TOTAL DEPTH: 83.0 ft TOC
NOTES:
LOGGED BY: D. Campbell CHECKED BY: T. Grant
_
o
=
a 0
U
_j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
wv
WJ
DESCRIPTION
Q
w
m0
d a
0
cn
U
ite BackfiII
VBenton
-
RK
Gneiss: QUARTZ -FELDSPAR GNEISS, white (N9) to very
- -
light gray (N8), w/ garnet, fresh (COMPETENT ROCK)
Boring terminated at 83 ft bgs
85
90
95
100
105
110
115
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
GreenvCarolina 29601
SynTerra Phone:l864 421- 9PAGE 3 OF 3

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-67BR
PROJECT NO: 1026.21
STARTED: 10/29/19 COMPLETED: 11/1/19
DRILLING COMPANY: Geologic Exploration
NORTHING: 545217.943 EASTING: 1173010.976
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 690.561 ft M.P. ELEV: 692.878 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 50.90 ft TOC TOTAL DEPTH: 120.0 ft TOC
NOTES:
LOGGED BY: W. Wimberley CHECKED BY: T. Grant
o
a 0
_j
g
>
OO o
0
Q
WELL
CONSTRUCTION
wv
�J
DESCRIPTION
w
m0
d a
0
Q
<n
U
—Protective Well Casing
o �o
oO D
o �a
GP
Gravel Pack: Riprap stone
oO D
a
5
o
10
ML
Sandy Silt: SAPROLITE
15
SCH 40 PVC Surface
20
Casing (Oft-38.5ft bgs)
_\ ,\
25
PWR
Shattered: GRANITE and METAGRANITE, highly
weathered (WEATHERED ROCK)
30
RK
Gneiss; GNEISS, w/ hornblende schist and some
plagioclase, mafic (COMPETENT ROCK)
Cement Grout
CLIENT: Duke Energy Carolinas
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
148 River
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 4

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-67BR
PROJECT NO: 1026.21
STARTED: 10/29/19 COMPLETED: 11/1/19
DRILLING COMPANY: Geologic Exploration
NORTHING: 545217.943 EASTING: 1173010.976
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 690.561 ft M.P. ELEV: 692.878 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 50.90 ft TOC TOTAL DEPTH: 120.0 ft TOC
NOTES:
LOGGED BY: W. Wimberley CHECKED BY: T. Grant
_
o
=
a 0
U
DESCRIPTION
-j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
Q
w
m0
d a
45
- _
_ ;'
50
2" SCH 40 PVC RISER
55
60
-
RK
Gneiss; GNEISS, w/ hornblende schist and some
_
plagioclase, mafic (COMPETENT ROCK) (continued)
65
Zones of quartzo -feldspathic rock, dry
75
- _
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 4

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-67BR
PROJECT NO: 1026.21
STARTED: 10/29/19 COMPLETED: 11/1/19
DRILLING COMPANY: Geologic Exploration
NORTHING: 545217.943 EASTING: 1173010.976
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 690.561 ft M.P. ELEV: 692.878 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 50.90 ft TOC TOTAL DEPTH: 120.0 ft TOC
NOTES:
LOGGED BY: W. Wimberley CHECKED BY: T. Grant
_
o
=
a 0
U
DESCRIPTION
_j
0-
>
OU o
O
Q
WELL
CONSTRUCTION
w
Q
w
m0
d a
85
- _
Bentonite Seal
90
95
100
RK
Gneiss; GNEISS, w/ hornblende schist and some
_
plagioclase, mafic (COMPETENT ROCK) (continued)
105
`-Sand
Filter Pack (96ft-120ft
bgs)
110
,= ; '
Soft at 108 ft w/ increased schistosity
2" Pre -Pack Well Screen
5i(1
02.5ft-1 17.5ft bgs)
115
- _
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 4

PROJECT: DEC-Cliffside
WELL / BORING NO: GWA-67BR
PROJECT NO: 1026.21
STARTED: 10/29/19 COMPLETED: 11/1/19
DRILLING COMPANY: Geologic Exploration
NORTHING: 545217.943 EASTING: 1173010.976
DRILLING METHOD: Air Rotary/Hammer
G.S. ELEV: 690.561 ft M.P. ELEV: 692.878 ft
BOREHOLE DIAMETER: 10,8,5.5 IN
DEPTH TO WATER: 50.90 ft TOC TOTAL DEPTH: 120.0 ft TOC
NOTES:
LOGGED BY: W. Wimberley CHECKED BY: T. Grant
_
o
=
a 0
U
�
0-
>
OU o
O
Q
WELL
CONSTRUCTION
wv
<J
DESCRIPTION
w
m0
d a
Q
Boring terminated at 120 ft bgs
125
130
135
140
145
150
155
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
GreenvCarolina 29601
SynTerra Phone:l864 421- 9PAGE 4 OF 4

PROJECT: DEC-Cliffside
WELL / BORING NO: U5-2S-SLB
PROJECT NO: 1026.21
STARTED: 4/3/19 COMPLETED: 4/3/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544662.18 EASTING: 1172543.73
DRILLING METHOD: Sonic
G.S. ELEV: 793.09 ft M.P. ELEV: 795.56 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:52.21 ft TOC TOTAL DEPTH: 67.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
U)
d
O^
o
z
o f
CONSTRUCTION
w
Q O
J
DESCRIPTION
g
Lu
Lu
=)
a Q
0
�
m
co0
Protective Casing with
CL
CLAY, dark red, organic rich, moist, weakly cohesive
oc ing ap
(FILL)
5
10
2" PVC Riser
15
SILT and CLAY, red, orange, brown, poorly sorted with
occasional grains up to gravel size, and isolated gray,
ML
non -cohesive and non -plastic with isolated intervals
20
demonstrating weak to moderate cohesiveness and
weak plasticity, dry (FILL)
e—Aquaguard Grout
25
30
35
40
SILT and CLAY, dark brown, very organic rich, dry
ML
non -cohesive, non -plastic, fragments of coal locally,
possibly contains trace coal ash (FILL)
45
—Benton ite Seal
SP
CLAY and SILT, gray, very soft, wet, non -plastic,
non -cohesive (FLY ASH)
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
South 99 ling 29601
GreenvSynTerra 1864
Phone 421 99lle,
PAGE 1 OF 2

PROJECT: DEC-Cliffside
WELL / BORING NO: U5-2S-SLB
PROJECT NO: 1026.21
STARTED: 4/3/19 COMPLETED: 4/3/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 544662.18 EASTING: 1172543.73
DRILLING METHOD: Sonic
G.S. ELEV: 793.09 ft M.P. ELEV: 795.56 ft
BOREHOLE DIAMETER: 6.25 IN
DEPTH TO WATER:52.21 ft TOC TOTAL DEPTH: 67.0 ft BGS
NOTES:
LOGGED BY: CHECKED BY:
_ (D
d
O-
o
z
OJ
p E
CONSTRUCTION
w
Q O
p
DESCRIPTION
g
U
p
0
a Q
❑
Ir
0
<
�
m
55
$.:.P
"fir P,r P
—Sand Filter Pack
:t :fit
CLAY and SILT, gray, very soft, wet, non -plastic,
Well Screen
non -cohesive (FLY ASH) (continued)
60
65
3>
Bottom of borehole 67'
Well screened 51-66'
70
75
80
85
90
95
CLIENT: Duke Energy Carolinas
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Mooresboro, NC
Greenv186, South ling 29601
SynTerra Phone [phone] PAGE 2 OF 2

APPENDIX P
TABLE 1
MONITORING WELL CONSTRUCTION INFORMATION
CORRECTIVE ACTION PLAN UPDATE
CLIFFSIDE STEAM STATION
DUKE ENERGY CAROLINAS, LLC, MOORESBORO, NC
Well ID
Date
Installed
Monitoring Zone
Material
Diameter
(Inches)
Northing
(Ft-NAD 83)
Easting
(Ft-NAD 83)
Measuring Point
TOC Elevation
(Ft-NAVD 88)
Ground Surface
Elevation
(Ft-NAVD 88)
Boring
1 z
Depth',
(Ft-BGS)
SurfaceTotal
Casing
Depth
(Ft-BGS)
Well
Depth
(Ft-BGS)
Screened
Z
Interval
(Feet-BGS)
Top of Screen
Elevation
(Ft-NAVD 88)
Bottom of Screen
Elevation
(Ft-NAVD 88)
AB-7BR
3/25/2019
Bedrock
PVC
2
544262.96
1178018.60
795.19
792.68
197.0
136.5
597.18
185.5
195.5
607.18
597.18
AB-7BRU
3/27/2019
Deep
PVC
2
544240.25
1178030.52
795.90
793.15
157.0
136.5
636.15
147.0
157.0
646.15
636.15
AB-7S
3/26/2019
Ash Pore Water
PVC
2
544252.38
1178024.30
795.80
793.15
57.0
--
736.15
47.0
57.0
746.15
736.15
AB-8BR
3/18/2019
Bedrock
PVC
2
544036.80
1177582.53
774.93
772.12
136.0
86.0
650.12
117.0
122.0
655.12
650.12
AB-8BRU
3/20/2019
Deep
PVC
2
544021.30
1177572.33
775.13
772.18
98.0
83.0
675.18
87.0
97.0
685.18
675.18
AB-8I
3/19/2019
Shallow
PVC
2
544033.17
1177580.15
774.99
772.21
67.0
51.0
705.21
57.0
67.0
715.21
705.21
AB-8S
3/14/2019
Ash Pore Water
PVC
2
544027.18
1177576.30
774.91
772.19
23.5
--
749.69
12.5
22.5
759.69
749.69
AB-9BR
3/18/2019
Bedrock
PVC
2
543951.83
1178658.38
771.15
768.30
126.0
72.0
649.30
109.0
119.0
659.30
649.30
AB-9D
3/19/2019
Deep
PVC
2
543948.96
1178653.75
771.04
768.21
67.5
50.0
700.71
57.5
67.5
710.71
700.71
AB-9S
3/15/2019
Ash Pore Water
PVC
2
543943.95
1178644.91
770.81
768.12
25.0
--
744.12
14.0
24.0
754.12
744.12
AS-7BRB
3/26/2019
Bedrock
PVC
2
545171.04
1178084.62
746.11
743.21
126.0
76.0
622.21
111.0
121.0
632.21
622.21
AS-8BR
4/10/2019
Bedrock
PVC
2
545335.60
1178015.58
725.18
725.51
103.0
53.5
625.51
90.0
100.0
635.51
625.51
AS-9BR
4/9/2019
Bedrock
PVC
2
545334.76
1178196.72
727.49
728.16
89.4
39.0
638.76
79.4
89.4
648.76
638.76
AS-9D
4/4/2019
Deep
PVC
2
545332.82
1178201.71
727.07
727.77
44.0
--
683.77
34.0
44.0
693.77
683.77
GWA-2BRA
4/16/2019
Bedrock
PVC
2
545326.96
1173053.90
685.64
683.54
68.0
29.0
615.54
58.0
68.0
625.54
615.54
GWA-11BR
11/15/2018
Bedrock
PVC
2
546022.34
1176965.30
678.87
675.85
177.0
35.0
605.85
65.0
70.0
610.85
605.85
GWA-57BR
4/4/2019
Bedrock
PVC
2
544511.79
1176801.34
730.26
727.42
86.0
26.0
641.42
76.0
86.0
651.42
641.42
GWA-57BRU
4/4/2019
Deep
PVC
2
544510.01
1176794.98
729.66
727.09
46.0
19.0
681.09
36.0
46.0
691.09
681.09
GWA-57S
4/2/2019
Shallow
PVC
2
544513.68
1176810.39
729.43
727.28
19.0
--
708.28
14.0
19.0
713.28
708.28
GWA-58BR
3/29/2019
Bedrock
PVC
2
544541.16
1176863.43
732.56
730.03
86.0
26.0
644.03
76.0
86.0
654.03
644.03
GWA-58BRU
4/1/2019
Deep
PVC
2
544535.07
1176858.65
731.83
729.60
36.0
17.0
693.60
31.0
36.0
698.60
693.60
GWA-58S
3/27/2019
Shallow
PVC
2
544530.65
1176855.10
731.74
729.00
16.0
--
714.20
4.8
14.8
724.20
714.20
GWA-59BR
3/27/2019
Bedrock
PVC
2
544840.25
1177222.83
756.06
753.72
81.0
51.0
674.82
73.9
78.9
679.82
674.82
GWA-59D
3/28/2019
Deep
PVC
2
544839.12
1177219.41
756.53
753.62
46.2
32.0
707.42
36.2
46.2
717.42
707.42
GWA-59S
3/27/2019
Shallow
PVC
2
544834.96
1177226.70
756.42
753.50
32.0
--
731.10
17.4
22.4
736.10
731.10
GWA-60BR
4/1/2019
Bedrock
PVC
2
544206.57
1175769.48
763.87
761.90
67.0
37.0
696.40
55.5
65.5
706.40
696.40
GWA-60BRU
3/28/2019
Deep
PVC
2
544221.74
1175769.31
763.99
761.67
35.0
--
729.67
22.0
32.0
739.67
729.67
GWA-61BR
4/3/2019
Bedrock
PVC
2
544420.41
1176094.64
763.74
761.24
107.0
41.0
667.84
88.4
93.4
672.84
667.84
GWA-61BRU
3/29/2019
Deep
PVC
2
544410.50
1176094.08
764.08
761.75
57.0
--
1 705.35
46.4
56.4
715.35
705.35
Page 1 of 2

APPENDIX P
TABLE 1
MONITORING WELL CONSTRUCTION INFORMATION
CORRECTIVE ACTION PLAN UPDATE
CLIFFSIDE STEAM STATION
DUKE ENERGY CAROLINAS, LLC, MOORESBORO, NC
Date
Diameter
Northing
Easting
Measuring Point
Ground Surface
Boring
SurfaceTotal
Casing
Well
Screened
Top of Screen
Bottom of Screen
Well ID
Monitoring Zone
Material
TOC Elevation
Elevation
1 z
Depth',
Depth
Z
Interval
Elevation
Elevation
Installed
(Inches)
(Ft-NAD 83)
(Ft-NAD 83)
Depth
(Ft-NAVD 88)
(Ft-NAVD 88)
(Ft-BGS)
(Ft-BGS)
(Feet-BGS)
(Ft-NAVD 88)
(Ft-NAVD 88)
(Ft-BGS)
GWA-62BR
4/2/2019
Bedrock
PVC
2
544801.58
1176571.36
735.10
735.30
66.0
11.0
669.30
56.0
66.0
679.30
669.30
GWA-62BRU
3/28/2019
Deep
PVC
2
544799.38
1176582.04
734.65
735.08
27.0
--
708.08
22.0
27.0
713.08
708.08
GWA-63BRU
3/27/2019
Deep
PVC
2
542867.91
1177875.65
815.37
812.86
76.0
53.0
736.86
66.0
76.0
746.86
736.86
GWA-63S
3/21/2019
Shallow
PVC
2
542858.22
1177875.49
815.08
813.29
51.0
--
762.29
46.0
51.0
767.29
762.29
GWA-65BR
11/6/2018
Bedrock
PVC
2
544539.75
1177120.12
754.07
751.23
83.0
38.5
679.23
62.0
72.0
689.23
679.23
GWA-67BR
11/2/2018
Bedrock
PVC
2
545217.94
1173010.98
692.88
690.56
120.0
38.5
573.06
102.5
117.5
588.06
573.06
U5-2S-SLB
4/3/2019
Ash Pore Water
PVC
2
544662.18
1172543.73
795.56
793.09
67.0
--
727.09
51.0
66.0
742.09
727.09
Notes:
-- - No Data Available
1 - Well depths initially measured during well installation and updated as new wells are installed.
Z - Values measured during well installation or calculated with values measured during well installation.
BGS - Below ground surface
Ft - Feet
NAD 83 - North American Datum 1983
NAVD 88 - North American Vertical Datum 1988
NM - Not Measured
PVC- Polyvinyl chloride
TOC - Top of Casing
Prepared by: DMY and JYT Checked by: KDF and SMD
Page 2 of 2