NC0004979_Allen_Appendix P_20191231

Corrective Action Plan Update December 2019
Duke Energy Carolinas, LLC - Allen Steam Station SynTerra
APPENDIX P
LOW PH AREA AND COAL PILE AREA
ASSESSMENT TECHNICAL MEMORANDUM

TECHNICAL MEMORANDUM
Date: December 19, 2019 File: 1026.17.26
To: Courtney Murphy (Duke Energy), Ryan Czop (Duke Energy)
Cc: Kathy Webb (SynTerra)
From: Chris Suttell C:Y5
Subject: Allen Steam Station — Low pH Area and Coal Pile Area Assessment Technical
Memorandum
INTRODUCTION
This technical memorandum provides details of additional assessment of source
material, groundwater and soil at two areas within Duke Energy's Allen Steam Station
(Allen, Station, or Site) property, located near Belmont in Gaston County, North
Carolina (Figure 1). The assessment activities support the corrective action plan (CAP)
at the Site. The first area, the "low pH area," is located in the vicinity of the northern
portion of the retired ash basin (RAB) extending toward the main coal pile, one of two
coal piles at the Site. The low pH area consists of the general area where solid and
groundwater pH values are less than 4.2 Standard Units (S.U.), although some values in
this area are greater than 4.2 S.U. The second area, the "coal pile area," includes both
the main coal pile, the live coal pile and areas downgradient of the coal piles (Figure 2).
Results of this assessment are not evaluated in this technical memorandum, but are
evaluated in the CAP Update report (SynTerra, 2019a).
Previous groundwater assessment activities indicate that flow is from west-southwest,
passing through the RAB and low pH area, to east-northeast towards the coal piles and
Catawba River. Assessment results also indicate that these areas are separate sources of
constituents of interest (COIs) in groundwater. Most COIs detected in the low pH area,
such as cadmium and thallium with generally greater partitioning coefficients (Ka
values), are not mobile in groundwater where more neutral groundwater pH conditions
(approximately 5 to 8 S.U.) are present, as predicted by geochemical modeling
presented in the CAP Update. Assessment results confirm COIs with greater Ka values
are not detected farther downgradient of the low pH area, including areas
downgradient of the coal piles. However, some COIs in groundwater with lower Ka
values, such as sulfate, are detected in groundwater downgradient of both the low pH
and coal pile areas.
Page 1

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station SynTerra
BACKGROUND
In an April 5, 2019 letter from the North Carolina Department of Environmental Quality
(NCDEQ) to Duke Energy, NCDEQ listed and requested assessment of additional
potential sources of constituents to groundwater at Allen. The letter states that all
sources hydrologically connected to the ash basins (including the ash basins) are to be
assessed and included in an updated CAP. The coal pile area was included as an
additional source hydrologically connected to the ash basins. Although not specifically
requested by NCDEQ, further evaluation of the low pH area was conducted voluntarily
to better understand the potential source area.
ASSESSMENT OBJECTIVES
The investigation of the low pH area and coal pile area:
• Further characterizes and delineates COI concentrations in CCR, soil, ash pore
water, and groundwater within the northern portion of the RAB. The
characterization and delineation supports evaluation of potential source
material, such as mill rejects, that are causing low pH conditions in this area.
• Further characterizes and delineates COI concentrations in soil and groundwater
downgradient of the coal pile.
• Refines the understanding of groundwater flow direction in both the low pH
area and coal pile area.
ASSESSMENT ACTIVITIES
Twenty-three monitoring wells were installed to assess the low pH and coal pile areas.
The monitoring wells were installed within CCR ash pore water and groundwater
within the shallow, deep, and bedrock flow zones.
The monitoring wells were installed using procedures and well construction materials
similar to those used at wells installed as part of other CAMA assessment activities.
Those wells were installed in general accordance with the NCDEQ-approved Proposed
Groundwater Assessment Work Plan (Rev. 1) (HDR, 2014). During borehole installations,
cores were described to characterize lithology. The monitoring wells were constructed
in accordance with NCAC Title 15A, Subchapter 2C, Section .0100 Well Construction
Standards. Each well consisted of 2-inch diameter schedule 40 polyvinyl chloride flush -
joint threaded casings and prepacked well screens. For wells installed within the RAB,
eight -inch permanent casings were installed to approximately three feet beyond the
ash -soil interface. These casings were allowed to cure completely prior to further
borehole advancement at each location within the RAB.
Page 2

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station SynTerra
After installation, monitoring wells were developed to remove drilling fluids and solids
that might have been introduced into the surrounding formation and sand pack during
well installation. Well development established interaction of the well with
surrounding ash pore water or groundwater. The location and elevation of each newly
installed well was determined by survey (Table 1). Each newly installed well was slug
tested via rising -head permeability methods to evaluate hydraulic properties of the
groundwater flow system at each location.
Groundwater samples were collected using low -flow sampling techniques and
following procedures outlined in the Low Flow Sampling Plan, Duke Energy Facilities, Ash
Basin Groundwater Assessment Program, North Carolina, June 10, 2015 (Duke Energy,
2015). Groundwater samples were analyzed for constituents and parameters in Table 1
of the Interim Monitoring Plan (IMP), with the exceptions of mercury, total radium, and
total uranium, which among other constituents, are not considered COIs at the Site. The
IMP was approved in an April 4, 2019, letter from NCDEQ to Duke Energy.
The newly installed wells have been added to the IMP Update provided to NCDEQ on
November 27, 2019, and currently awaiting NCDEQ approval. However, in order to
have an initial sampling event and analytical data set available for evaluation in the
CAP, samples were collected shortly after installation, on a separate schedule from the
IMP. The initial sampling event was performed from October 16 through 25, 2019.
Subsequent sampling events are planned to be included with the scheduled IMP
sampling events.
LOW PH AREA ASSESSMENT
Assessment of the low pH area included installation of investigative borings for pH
screening of solids (ash and soil) and installation of monitoring wells for groundwater
sampling and water level monitoring. The characterization and delineation supported
evaluation of potential source material, such as mill rejects, that were thought to be
causing low pH conditions in this area. Information obtained from this investigation
will supplement existing data and be evaluated for corrective action planning.
Investigative Borings and Solids Sampling
Nine (9) investigative borings (SB-10 through SB-18) were advanced using Sonic drilling
technology to install the borings in the low pH area (Figure 2). Those borings were
installed at locations to form a grid -like pattern, as much as possible, in the wooded
tract within the north portion of the RAB (Figure 2). Borings were terminated once the
interface between ash and soil was observed. Solid samples (ash and soil) were
collected from the borings at 3 to 5-foot intervals (depending on field observations) to
assess the pH of the solids in the field by making a pH paste aliquot and measuring pH
Page 3

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station SynTerra
with a calibrated pH probe. The pH paste aliquot was made by mixing deionized water
with solids at selected intervals from each boring individually (Table 3). Additional
solid samples were collected from up to three separate intervals based on field
screening results and submitted for laboratory analysis for further characterization of
the potential source area. Those solid samples were submitted to a certified laboratory
and analyzed for the following parameters:
• pH — to assess the acidity or alkalinity of the material (soil and/or ash) and
verify field measurements recorded with the pH probe
• Acid/base accounting — to determine the acid -producing and acid -neutralizing
potential of the material
• Acid volatile sulfide — to assess constituent concentrations liberated during
acidification of the material
• Inorganic and mineralogical analysis — to assess the chemical composition and
mineralogy of the material
• Synthetic precipitation leaching procedure (SPLP) — to assess the leaching
potential of the material
• Hydrous iron oxide/hydrous aluminum oxide (HFO/HAO) — to assess the
available area for constituent sorption to the material
In addition to the samples collected from the investigation borings, solid samples were
collected at monitoring well locations as part of well installation activities (Figure 2).
Unsaturated solid samples were collected at approximately 5-foot intervals until the
water table was encountered. The water table was observed to occur at depths ranging
from approximately 10 feet to 30 feet below ground surface (Table 1). To supplement
data used for the geochemical model, additional soil samples were collected for
HFO/HAO analysis at depths that coincided with the depths in which well screen
intervals were installed.
Solid samples from the proposed well locations were submitted for laboratory analysis
and analyzed for inorganic constituents (Table 2). Evaluation and comparison of
analytical results to the Preliminary Soil Remediation Goal (PSRG) and Protection of
Groundwater (POG) standards are included in the CAP Update. SPLP analysis was
performed on a single unsaturated solid sample from each boring to enable analysis of
potential leaching of inorganic constituents from solids (Table 2).
Page 4

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station
Groundwater Assessment
SynTerra
Monitoring well clusters were installed at five locations within the low pH area to
enable evaluation of the potential source area. Each well cluster consisted of either two
or three monitoring wells. Locations with three monitoring wells included wells
installed within CCR ash pore water (wells identified with the suffix of "Al?"), the
shallow flow zone (wells identified with the suffix of "SS"), the deep flow zone (wells
identified with the suffix of "D"). Locations with two monitoring wells include wells
installed within shallow flow zone and the deep flow zone. The locations of the wells
were determined based on the investigative borings pH screening results and where
ash pore water was present at sufficient volumes for sampling. During installation of
soil boring SB-17, the core retrieved was noted as wet at approximately 15 feet below
ground surface. An ash pore water well (AB-44AP) was installed and developed;
however, during sampling there was insufficient water to be sampled.
Two well clusters (GWA-27 and GWA-30) were installed outside of the RAB and
downgradient of the low pH area to supplement existing well clusters in the area. Wells
within those clusters were installed within groundwater of the shallow flow zone (wells
identified with suffix of "S") and deep flow zones (wells identified with suffix of "D").
Well construction details are summarized on Table 1. Boring logs are presented in
Attachment A.
COAL PILE AREA ASSESSMENT
Assessment of the coal pile area included installation of monitoring wells and soil
sampling at the proposed well locations. Water levels and groundwater samples were
collected from the newly installed wells. The purpose of these assessment activities was
to further delineate COIs in the coal pile area to support corrective action planning.
Soil Assessment
Soil samples were collected at monitoring well locations as part of well installation
activities (Figure 2) at approximately 5-foot intervals until the water table was
encountered. The water table was observed to occur at depths ranging from
approximately 10 feet to 30 feet below ground surface (Table 1). To supplement
geochemical modeling data, additional soil samples were collected below the water
table at depths that coincided with the depths in which well screen intervals were
installed. SPLP analysis was performed on a single unsaturated solid sample from each
boring to enable analysis of potential leaching of inorganic constituents (Table 2) from
solids.
Page 5

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station
Groundwater Assessment
SynTerra
Two well clusters (GWA-28 and GWA-29) were installed downgradient of the existing
coal pile assessment well network (Figure 2) to further delineate COI concentrations.
Each of the proposed well clusters would consist of wells with screened intervals within
groundwater of the shallow flow zone (wells identified with suffix of "S"), deep flow
zones (wells identified with suffix of "D") and bedrock flow zone (wells identified with
a suffix of "BR"). A single bedrock well was attempted to be installed at the CP-02 well
cluster to further delineate COIs concentrations detected in the deep flow zone (Figure
2). During drilling, several abbreviated slug tests and pumping tests were conducted on
isolated zones using single and double packers where cores identified potential water -
bearing fractures at well cluster CP-02. However, bedrock fractures were not
encountered within 275 feet of ground surface that would yield sufficient water for
groundwater monitoring. Well construction details are summarized on Table 1. Boring
logs are presented in Attachment A.
FIGURES:
Figure 1: Site Location Map
Figure 2: Low pH Area and Coal Pile Area Assessment Sample Locations
TABLES:
Table 1: Low pH Area and Coal Pile Area Assessment Well Construction Details
Table 2: Soil Analytical Parameters
Table 3: pH Screening Results
ATTACHMENTS:
Attachment A: Boring Logs
Page 6

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station SynTerra
REFERENCES:
Duke Energy, June 10, 2015. Low Flow Sampling Plan, Duke Energy Facilities, Ash
Basin Groundwater Assessment Program, North Carolina.
HDR. (2014). Allen Steam Station Ash Basin Proposed Groundwater Assessment Work Plan
(Rev. 1), December 30, 2014.
HDR. (2016a). Comprehensive Site Assessment Supplement 1— Allen Steam Station —
February, 2016.
HDR. (2016b). Comprehensive Site Assessment Supplement 2 — Allen Steam Station — August,
2016.
NCDEQ, April 4, 2019, Correspondence to Duke Energy, Subject: Response to the
Interim Monitoring Plans (IMP) for 14 Duke Energy Facilities — Modification
Request Annual Reports — Modification Request
NCDEQ, April 5, 2019, Correspondence to Duke Energy, Subject: Coal Ash
Impoundment Closures at Allen, Belews Creek, Cliffside/Rogers, Marshall, Mayo
and Roxboro Facilities
NCDEQ, May 9, 2019, Correspondence to Duke Energy, Subject: Final Comprehensive
Site Assessment and Corrective Action Plan Approvals for Duke Energy Coal
Ash Facilities
SynTerra (2018a). Comprehensive Site Assessment Update —Allen Steam Station — January,
2018. Belmont, NC.
SynTerra (2018b). Allen Steam Station Coal Pile Assessment Work Plan —January 2018.
Revised June 2018. Belmont, NC.
SynTerra (2019a). Corrective Action Plan Update - Allen Steam Station — December 2019.
Belmont, NC.
SynTerra (2019b). Allen Steam Station Low pH Area and Coal Pile Area Assessment Work
Plan July 2019. Belmont, NC.
Page 7

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station
FIGURES
SynTerra

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SITE LOCATION MAP
ENERGY
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LOW pH AREA AND COAL PILE AREA
CAROLINAS
ASHEVILLE
CHARLOTTE
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
GASTON DRAWN
COUNTY REVISED
BY: B. YOUNG DATE: 05/02/2019
BY: K. KING DATE: 06/25/2019
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APPROVED
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BY: L. DRAGO DATE: 06/25/2019
MANAGER: C. SUTTEL
www.s nterracor .com PROJECT

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APPROVED BY: L. DRAGO DATE: 12/20/2019
synTerra PROJECT MANAGER: C. SUTTELL
www.synterracorp.com
LEGEND
LOW pH AREAAND COAL PILE AREAASSESSMENT
SAMPLE LOCATIONS
. LOW pH AREAASSESSMENT INVESTIGATIVE SOIL
BORING
WELLABANDONED
GROUNDWATER SAMPLING LOCATION
SOIL SAMPLING LOCATION
SOIL AND GROUNDWATER SAMPLING LOCATION
AREA OF WETNESS (AOW) SAMPLING LOCATION
0 SURFACE WATER SAMPLING LOCATION
SURFACE WATER AND SEDIMENT SAMPLING LOCATION
INACTIVE WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
RETIRED ASH BASIN ASH LANDFILL WASTE BOUNDARY
RETIRED ASH BASIN ASH LANDFILL COMPLIANCE
BOUNDARY
DORS FILLS BOUNDARIES
10' TOPOGRAPHIC CONTOUR FROM WSP SURVEY
2' TOPOGRAPHIC CONTOUR FROM WSP SURVEY
- - • DUKE ENERGY CAROLINAS PROPERTY LINE
1. * - NO MONITORING WELL WAS INSTALLED AT CP-2BR DUE TO INSUFFICIENT FLOW.
2. WSP SURVEY CONDUCTED APRIL 17, 2014.
3. ALL BOUNDARIES ARE APPROXIMATE.
4. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS.
5.2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM WSP, APRIL 2014.
6. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE
COORDINATE SYSTEM FIPS 3200 (NAD83).
FIGURE 2
LOW pH AREA AND COAL PILE
AREAASSESSMENT
ALLEN STEAM STATION
BELMONT, NORTH CAROLINA

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station
TABLES
SynTerra

TABLE 1
WELL CONSTRUCTION DETAILS
LOW pH AREA AND COAL PILE AREA ASSESSMENT TECHNICAL MEMORANDUM
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
IDENTIFICATION
PROGRAM
DATE
INSTALLED
STATUS
MONITORING
ZONE
FLOW LAYER
NORTHING
FASTING
MEASURING
POINT TOC
ELEVATION
(ft. NAVD 88)
CASING
ADJUSTMENT
HEIGHT
(ft. NAVD 88)
GROUND
SURFACE
ELEVATION
(ft. NAVD 88)
Water Level
(ft. BTOC)
October 24,
2019
TOTAL
BORING
DEPTH
(ft. bgs)
TOTAL
BORING
DEPTH
(ft. NAVD 88)
SCREENED
INTERVAL
(ft. bgs)
SCREENED
INTERVAL
(ft.)
TOP OF SCREEN
ELEVATION
(ft. NAVD 88)
BOTTOM OF
SCREEN
ELEVATION
(ft. NAVD 88)
SB-10
CAMA
8/21/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
53
N/A
N/A
N/A
N/A
N/A
N/A
SB-11
CAMA
8/22/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
30
N/A
N/A
N/A
N/A
N/A
N/A
SB-12
CAMA
8/22/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
23
N/A
N/A
N/A
N/A
N/A
N/A
SB-13
CAMA
8/23/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
30
N/A
N/A
N/A
N/A
N/A
N/A
SB-14
CAMA
8/23/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
40
N/A
N/A
N/A
N/A
N/A
N/A
SB-15
CAMA
8/23/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
30
N/A
N/A
N/A
N/A
N/A
N/A
SB-16
CAMA
8/24/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
35
N/A
N/A
N/A
N/A
N/A
N/A
SB-17
CAMA
8/26/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
30
N/A
N/A
N/A
N/A
N/A
N/A
SB-18
CAMA
8/26/2019
Abandoned
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
70
N/A
N/A
N/A
N/A
N/A
N/A
AB-40SS
CAMA
9/9/2019
Active
Shallow
Shallow
528560.07
1399263.65
53.31
3.01
632.03
32.71
50
53.31
40
50
10
592.03
582.03
AB-40D
CAMA
9/11/2019
Active
Deep
Deep
528557.88
1399268.70
123.68
2.97
632.07
35.00
121
123.68
111
121
10
521.07
511.07
AB-41SS
CAMA
9/13/2009
Active
Shallow
Shallow
528759.20
1398960.00
76.78
2.61
631.89
28.32
75
76.78
65
75
10
566.89
556.89
AB-41D
CAMA
9/17/2019
Active
Deep
Deep
528756.10
1398954.00
143.57
2.54
632.01
29.59
143.5
143.57
133.5
143.5
10
498.51
488.51
AB-42AP
CAMA
9/16/2019
Active
Ash Pore Water
Ash Pore Water
528378.95
1399124.22
42.98
2.75
631.35
26.85
40
42.98
30
40
10
601.35
591.35
AB-42SS
CAMA
9/14/2019
Active
Shallow
Shallow
528381.08
1399120.03
86.42
2.76
631.24
29.02
85
86.42
75
85
10
556.24
546.24
AB-42D
CAMA
9/18/2019
Active
Deep
Deep
528383.71
1399127.08
126.08
2.81
631.31
30.28
120
126.08
107
117
10
521.31
511.31
AB-43AP
CAMA
9/16/2019
Active
Ash Pore Water
Ash Pore Water
528284.27
1398900.44
43.40
2.73
630.25
26.51
40
43.40
30
40
10
600.25
590.25
AB-43SS
CAMA
9/17/2019
Active
Shallow
Shallow
528283.69
1398895.80
77.28
2.69
630.33
25.19
75
77.28
65
75
10
565.33
555.33
AB-43D
CAMA
9/16/2019
Active
Deep
Deep
528280.05
1398901.61
98.60
2.81
630.17
25.30
95
98.60
85
95
10
545.17
535.17
AB-44AP
CAMA
9/16/2019
Active
Ash Pore Water
Ash Pore Water
528569.74
1398923.46
27.72
2.68
631.10
dry
25
27.72
15
25
10
616.10
606.10
AB-44SS
CAMA
9/16/2019
Active
Shallow
Shallow
528572.92
1398925.31
66.91
2.69
631.06
28.01
65
66.91
55
65
10
576.06
566.06
AB-44D
CAMA
9/14/2019
Active
Deep
Deep
528571.73
1398919.62
139.42
2.62
631.24
27.98
136
139.42
126
136
10
505.24
495.24
GWA-27S
CAMA
10/1/2019
Active
Shallow
Shallow
529127.01
1399002.26
62.25
2.83
625.56
36.17
65
62.25
49.5
59.5
10
570.56
560.56
GWA-27D
CAMA
9/30/2019
Active
Deep
Deep
529133.98
1398998.22
162.55
3.00
625.22
42.24
159.5
162.55
149.5
159.5
10
475.72
465.72
GWA-28S
CAMA
10/16/2019
Active
Shallow
Shallow
529710.10
1399867.00
29.14
-0.26
589.44
14.42
30
29.14
20
30
10
569.44
559.44
GWA-28D
CAMA
10/15/2019
Active
Deep
Deep
529716.60
1399865.00
51.47
-0.54
589.26
14.31
52
51.47
42
52
10
547.26
537.26
GWA-28BR
CAMA
10/14/2019
Active
Bedrock
Bedrock
529724.10
1399863.00
140.31
-0.55
588.169
14.28
150
140.31
130
140
10
448.17
438.17
GWA-29S
CAMA
9/16/2019
Active
Shallow
Shallow
530052.25
1400259.12
41.17
-0.28
579.53
13.59
41
41.17
31
41
10
548.53
538.53
GWA-29D
CAMA
9/14/2019
Active
Deep
Deep
530058.80
1400256.91
70.80
-0.37
579.41
13.72
71
70.80
61
71
10
518.41
508.41
GWA-29BR
CAMA
9/13/2019
Active
Bedrock
Bedrock
530064.33
1400253.99
107.01
-0.27
579.36
13.72
107
107.01
97
107
10
482.36
472.36
GWA-30S
CAMA
8/27/2019
Active
Shallow
Shallow
529001.69
1399546.63
32.57
2.78
593.36
8.96
30
32.57
20
30
10
573.36
563.36
GWA-30D
CAMA
8/26/2019
Active
Deep
Deep
529008.49
1399540.14
60.16
2.82
593.51
10.88
63
60.16
53
63
10
540.51
530.51
CP-02BR
CAMA
9/11/2019
Abandoned
Bedrock
Bedrock
N/A
N/A
Abandoned
N/A
N/A
N/A
275
N/A
N/A
N/A
N/A
N/A
N/A
Notes:
N/A - Not Applicable
bgs - Below Ground Surface
TOC - Top of Casing
ft. bgs - feet below ground surface
ft. NAVD 88 - feet North American Vertical Datum of 1988
CAMA - Coal Ash Management Act
Prepared by: MAF Checked by: LWD
Page 1 of 1

TABLE 2
SOIL ANALYTICAL PARAMETERS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
INORGANIC COMPOUNDS
PSRG POG
UNITS
METHOD
Aluminum
110000
mg/kg
EPA 6010D
Antimony
0.9
mg/kg
EPA 6020B
Arsenic
5.8
mg/kg
EPA 6020B
Barium
580
mg/kg
EPA 6010D
Beryllium
63
mg/kg
EPA 6020B
Boron
45
mg/kg
EPA 6010D
Cadmium
3
mg/kg
EPA 6020B
Calcium
NE
mg/kg
EPA 6010D
Chloride*
NE
mg/kg
EPA 9056A
Chromium
3.8
mg/kg
EPA 6010D
Cobalt
0.9
mg/kg
EPA 6020B
Copper
700
mg/kg
EPA 6010D
Iron
150
mg/kg
EPA 6010D
Lead
270
mg/kg
EPA 6020B
Magnesium
NE
mg/kg
EPA 6010D
Manganese
65
mg/kg
EPA 6010D
Mercury
1
mg/kg
EPA 7471B or 7470A
Molybdenum
7.1
mg/kg
EPA 6010D
Nickel
130
mg/kg
EPA 6010D
Nitrate as Nitrogen*
NE
mg/kg
EPA 9056A
pH*
NE
S.U.
EPA 9045D
Potassium
NE
mg/kg
EPA 6010D
Selenium
2.1
mg/kg
EPA 6020B
Sodium
NE
mg/kg
EPA 6010D
Strontium
1500
mg/kg
EPA 6010D
Sulfate*
NE
mg/kg
EPA 9056A
Thallium low level
0.28
mg/kgmg/kg
EPA 6020B
Total Organic Carbon*
NE
mg/kg
EPA 9060A
Vanadium
350
mg/kg
EPA 6020B
Zinc
1200
mg/kgmg/kg
EPA 6010D
Prepared by: RBI Checked by: CJS
Notes•
1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045, as noted above.
Select soil samples will also be analyzed for leaching potential using SPLP Extraction Method 1312 in conjunction with USEPA Methods
6010/6020.
2. Analytical methods as presented were applicable as of May 6, 2019. Analytical methods are updated periodically and applied as
appropriate.
*Select constituents are not analyzed for leaching potential.
PSRG POG - Primary Soil Remediation Goals Protection of Groundwater
mg/kg - Milligrams per kilogram
S.U. - Standard Unit
Page 1 of 1

TABLE 3
PH SCREENING RESULTS
LOW pH AREA AND COAL PILE AREA ASSESSMENT TECHNICAL MEMORANDUM
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
Sample ID
Sample Interval
(feet bgs)
pH Value
(S.U.)
Comments
SB-10
0-2
5.24
interbedded fly ash/bottom ash
SB-10
2-4
4.64
interbedded fly ash/bottom ash, Clinkers/coal pieces observed
SB-10
5
5.35
interbedded fly ash/bottom ash
SB-10
10
4.78
interbedded fly ash/bottom ash
SB-10
15
4.87
interbedded fly ash/bottom ash
SB-10
20
6.08
interbedded fly ash/bottom ash
SB-10
25
6.33
wet interbedded fly ash/bottom ash
SB-10
30
6.75
wet interbedded fly ash/bottom ash
SB-10
45
6.71
wet stiff clay
SB-10
50
6.13
wet stiff clay
SB-11
0-2
3.38
Clay / Interbedded fly ash/bottom ash
SB-11
2-5
1.79
Interbedded fly ash/bottom ash - yellowish tint with coal pieces stained yellow
SB-11
6-8
3.67
Very coarse ash, gravely sand, yellowish brown, large coal pieces
SB-11
8-10
3.81
Interbedded fly ash/bottom ash, coal pieces
SB-11
10-15
4.03
Interbedded fly ash/bottom ash, coal pieces
SB-11
18-20
4.65
Interbedded fly ash/bottom ash, coal pieces
SB-11
20-21
5.51
wet interbedded fly ash/bottom ash, coal pieces
SB-11
24-25
5.44
wet stiff clay, river stone present (13cm)
SB-11
28-30
5.85
wet stiff clay
SB-12
0-2
3.97
Clay / Interbedded fly ash/bottom ash --- yellowish tint increasing downwards
SB-12
3-5
3.93
Interbedded fly ash/bottom ash --yellowish tint, large clinker (7cm) @ 3 feet b s
SB-12
6-8
3.75
Interbedded fly ash/bottom ash --yellowish tint, coal pieces
SB-12
8-10
3.98
Interbedded fly ash/bottom ash --- orange/brown staining
SB-12
15
5.18
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-12
18-20
5.7
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-12
20-23
4.23
Clayey silt, tan, muscovite rich, moist
SB-13
1
4.88
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-13
2
4.99
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-13
4-5
5.68
Interbedded fly ash/bottom ash, small pieces of coal throughout, clinkers present
SB-13
6-8
4.77
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-13
8-10
4.12
Fly ash, little to no coal
SB-13
13-15
5.35
Fly ash, little to no coal
SB-13
18-20
5.07
Fly ash, coal pieces present
SB-13
24-25
5.11
wet bottom ash, coal pieces present
SB-13
25-26
6.03
wet bottom ash, heavy clinker zone, gravelly, colorful clinkers
SB-13
27-28
5.89
Clay, stiff, minor relic structure
SB-14
0-2
4.1
Clay
SB-14
2-4
4.07
Interbedded fly ash/bottom ash, small pieces of coal throughout, yellow tint
SB-14
4-5
3.82
Interbedded fly ash/bottom ash, small pieces of coal throughout, yellow tint
SB-14
5-7
3.97
Interbedded fly ash/bottom ash, small pieces of coal throughout, yellow tint
SB-14
7-8
3.53
Interbedded fly ash/bottom ash, small pieces of coal throughout, orange band
SB-14
8-10
3.71
Interbedded fly ash/bottom ash, small pieces of coal throughout, orange band
SB-14
10-15
4.06
Interbedded fly ash/bottom ash, little to no coal, yellow tint
SB-14
15-17
3.62
Interbedded fly ash/bottom ash, small pieces of coal throughout, yellow tint
SB-14
18-20
4.26
Bottom ash, sand
SB-14
20-25
4.07
coarsens downward from fly ash to bottom ash
SB-14
25-26
3.58
ash very coarse with large cobbles
SB-14
26-27.5
3.85
ash very coarse with large cobbles
SB-14
27.5-30
3.91
moist Interbedded fly ash/bottom ash
SB-14
31
4.58
wet clay, sand
SB-14
34
3.86
wet silt, well rounded cobbles, extremely gravelly
SB-14
39
3.99
wet silt, brown and white, relic structure
SB-15
0-2
3.72
sandy silty clay
SB-15
3-5
3.64
bottom ash with clinkers, yellowish -gray
SB-15
5-6
3.73
bottom ash
SB-15
6-7
3.62
bottom ash
SB-15
8-10
3.74
bottom ash
SB-15
13-15
3.71
Interbedded fly ash/bottom ash
SB-15
18-20
4.71
moist Interbedded fly ash/bottom ash
Page 1 of 3

TABLE 3
PH SCREENING RESULTS
LOW pH AREA AND COAL PILE AREA ASSESSMENT TECHNICAL MEMORANDUM
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
Sample ID
Sample Interval
(feet bgs)
pH Value
(S.U.)
Comments
SB-15
24-25
4.71
wet fly ash
SB-15
28-29
5.69
wet bottom ash
SB-16
2-3
4.46
Interbedded fly ash/bottom ash
SB-16
3-5
4.57
Interbedded fly ash/bottom ash
SB-16
9
4.35
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-16
10
4.52
Interbedded fly ash/bottom ash, band of yellow -orange, clinkers throughout
SB-16
12
4.35
Interbedded fly ash/bottom ash, small pieces of coal throughout
SB-16
14
4.35
Interbedded fly ash/bottom ash, few small pieces of coal throughout
SB-16
21
4.12
Interbedded fly ash/bottom ash, few small pieces of coal throughout
SB-16
22.5
3.86
fly ash
SB-16
24
4.05
fly ash
SB-16
25-26
5.27
wet fly ash
SB-16
28-29
4.41
wet sandy clay
SB-16
31-32
4.21
wet sandy clay
SB-17
2-4
3.22
Interbedded fly ash/bottom ash - yellow tint, large coal pieces
SB-17
4-6
3.37
Interbedded fly ash/bottom ash - yellow tint, large coal pieces
SB-17
8-10
3.57
Fly ash - fewer (and smaller) coal pieces
SB-17
12-13
3.67
wet interbedded fly ash/bottom ash, few coal pieces
SB-17
17-18
3.79
wet Bottom ash
SB-17
22-23
4.24
wet Bottom ash
SB-17
25-26
3.97
wet Fly ash
SB-17
27-28
3.97
wet silt - river stone cobbles
SB-17
28-30
4.12
wet gravel - white and brown, river stone cobbles
SB-18
2-4
5.41
Interbedded fly ash/bottom ash --- coal pieces
SB-18
4-8
5.21
Interbedded fly ash/bottom ash --- yellow -orange stain @ 7' b s, coal pieces
SB-18
8-10
4.57
Interbedded fly ash/bottom ash --- orange tint, coal pieces
SB-18
10-11
5.27
Interbedded fly ash/bottom ash
SB-18
12
4.52
Bottom ash --- coarse, sandy, clinkers present
SB-18
13-14
4.5
Interbedded fly ash/bottom ash
SB-18
19-20
4.52
wet interbedded fly ash/bottom ash
SB-18
21
5.03
wet fly ash
SB-18
22-23
4.35
wet bottom ash
SB-18
25-30
6.06
wet bottom ash
SB-18
30-40
5.99
wet bottom ash - very coarse grained, sand, coal present
SB-18
57
6.31
wet bottom ash - very coarse grained, sand, clinkers present
SB-18
63-64
5.84
wet silt, white & brown, relic structure
SB-18
69-70
5.85
wet silt, white & brown, relic structure
GWA-30
2-4
3.6
Silty clay
GWA-30
6-8
3.76
sandy clay
GWA-30
10-12
4.03
sandy silt
GWA-30
16-18
4.41
Silty clay
GWA-30
22-24
4.58
Silty clay
GWA-30
26-28
4.26
sandy silt
AB-44D
34-35
8.41
Sandy Gravel, white & brown, river cobble
AB-40D
35-36
5.94
clay w/ silt; light brown/ gray & orange
AB-40D
40-41
5.95
clay w/ silt; light brown/ gray & orange
AB-40D
45-46
5.51
clay w/ silt; light brown/ gray & orange
AB-40D
49-50
4.65
silty clay, tan & white, mottled
AB-40D
54-55
5.13
silty clay, tan & white, mottled
AB-40D
59-60
5.15
silt w/ minor clay, dark brown & gray
AB-40D
64-65
6.22
silt w/ minor clay, dark brown & gray
AB-40D
69-70
6.10
silt, dark green, gray & brown,
AB-40D
74-75
5.94
silt w/ minor clay, greenish gray
AB-40D
79-80
6.53
sandy silt, light brown & white, mottled, dense
AB-40D
84-85
6.95
sandy silt, light brown & white, mottled, dense
AB-40D
89-90
7.47
sandy silt, light brown & white, mottled, dense
AB-40D
94-95
7.05
silt w/ clay, gray & brown
AB-40D
99-100
7.44
sand silt, light brown -gray & white, fine
AB-40D
104-105
7.53
sandy silt, light brown -gray & white, fine
Page 2 of 3

TABLE 3
PH SCREENING RESULTS
LOW pH AREA AND COAL PILE AREA ASSESSMENT TECHNICAL MEMORANDUM
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
Sample ID
Sample Interval
(feet bgs)
pH Value
(S.U.)
Comments
AB-40D
109-110
7.96
sandy silt, light brown -gray & white, fine
AB-40D
114-115
7.38
sandy silt, light brown -gray & white, fine
AB-40D
119-120
8.81
sandy silt, light brown -gray & white, fine, PWR throughout
AB-41D
30-31
3.68
silty clay, orange/red/tan, mottled, micaceous
AB-41D
35-36
3.65
silty clay, orange/red/tan, mottled, micaceous
AB-41D
40-41
3.60
silty clay, tan/white, minor sand
AB-41D
45-46
3.65
silty clay, brown w/ olive green & orange
AB-41D
50-51
3.85
silty clay, brown w/ olive green & orange
AB-41D
55-56
4.58
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
65-66
4.88
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
70-71
5.21
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
75-76
5.35
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
80-81
5.61
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
85-86
6.54
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
90-91
5.98
sandy silt, minor clay, tan/white, mottled, fine
AB-41D
95-96
6.47
silt, dark gray/green, hard
AB-41D
100-101
6.08
clay, dark green & dark brown/black
AB-41D
105-106
6.82
silt w/ fine sand, light gray/green & white, hard
AB-41D
110-111
6.13
silty sand, light gray/tan & white, micaceous
AB-41D
115-116
6.76
silty sand, light gray/tan & white, micaceous
AB-41D
120-121
6.45
silty sand, light gray/tan & white, micaceous
AB-41D
125-126
6.39
silty sand, light gray/tan & white, micaceous
AB-41D
130-131
6.95
silty sand, light gray/tan & white, micaceous
AB-41D
135-136
7.45
silty sand, light gray/tan & white, micaceous
AB-42D
75-80
5.97
sandy silt, gray/white & tan, mottled, micaceous
AB-42D
80-85
6.02
sandy silt, gray/white & tan, mottled, micaceous
AB-43D
50-55
6.05
clay, green/light brown/blue gray, high plasticity
AB-43D
55-60
6.38
Silty clay, brown and gray, minor gravel
AB-43D
60-65
5.98
sandy silt, gray & white, micaceous
AB-43D
65-70
6.05
sandy silt, gray & white, micaceous
AB-43D
70-75
6.75
sandy silt, gray & white, micaceous
AB-44D
39-40
4.93
silty clay, tan/brown/white, cobbles
AB-44D
44-45
5.24
silt w/ sand, brown, micaceous
AB-44D
49-50
5.34
silt w/ sand, brown, micaceous
AB-44D
54-55
6.16
silt w/ sand, tan/brown/white
AB-44D
59-60
6.64
silt w/ sand, tan/brown/white
AB-44D
64-65
7.62
silt w/ sand, tan/brown/white
AB-44D
69-70
6.36
silt, dark green & brown, relic structure
AB-44D
74-75
7.3
silt w/ minor sand, tan/brown/white, relic structure
AB-44D
79-80
7.36
silt w/ minor sand, tan/brown/white, relic structure
AB-44D
84-85
7.81
silt w/ minor sand, tan/brown/white, relic structure
AB-44D
89-90
7.52
silt w/ minor sand, tan/brown/white, relic structure
AB-44D
119-120
7.31
sand w/ clay, greenish gray, dense
AB-44D
124-125
7.82
sand w/ clay, greenish gray, dense
AB-44D
129-130
7.84
sand w/ clay, greenish gray, dense
AB-44D
134-135
7.71
Diorite gray/white & black minor weathering
Notes:
bgs - below ground surface SB-11 is associated with the AB-40 well cluster
S.U. - Standard Units SB-12 is associated with the AB-41 well cluster
cm - centimeter SB-17 is associated with the AB-44 well cluster
SB-10 is associated with the AB-43 well cluster SB-18 is associated with the AB-42 well cluster
Prepared by: MAF Checked by: LWD
Page 3 of 3

Technical Memorandum — Low pH Area and Coal Pile Area Assessment December 15, 2019
Duke Energy Carolinas, LLC - Allen Steam Station
ATTACHMENTS
SynTerra

SynTerra
KEY TO SYMBOLS
148 River Street, Suite 220
10
Greenville, SC 29601
synTerra 864-421-9999
864-421-9909
CLIENT Duke Energy PROJECT NAME DEC Allen
PROJECT NUMBER 1026.17 PROJECT LOCATION Belmont, North Carolina
LITHOLOGIC SYMBOLS
SAMPLER SYMBOLS
(Unified Soil Classification System)
ASH: Ash
Core Barrel
ASH -COAL: Coal Ash
■ ASPHALT: Asphalt
® CH: USCS High Plasticity Clay
FA CLAY—TTC: TTC Clay
WELL
CONSTRUCTION SYMBOLS
CLAYOR_TTC: TTC Clay with Organics
M1
Aquaguard: Bottom of hole
CLAYSD—TTC. TTC Sandy Clay
CLAYST—TTC: TTC Silty Clay
In
Aquaguard: Cased
CLS: USCS Low Plasticity Sandy Clay
Bentonite: Bottom of hole
® COAL: Coal
® COBBLES TTC: TTC Cobbles
®
Bentonite Seal (Cased Well)
■ DIABASE: Diabase
Cement Seal (Cased Well)
FILL: Fill (made ground)
GRAVEL TTC: TTC Gravel
Filter Pack
META QUARTZ DIORITE: Meta Quartz
Diorite
Well Casing
ML: USCS Silt
MLS: USCS Sandy Silt
Well Screen
Ld SAND TTC: TTC Sand
ABBREVIATIONS
BGS -BELOW GROUND SURFACE
PID - PHOTOIONIZATION DETECTOR
G.S. -GROUND SURFACE
ppm - PARTS PER MILLION
M.P. -MEASURING POINT
-
TOC -TOP OF CASING
-
USCS- UNIFIED SOIL CLASSIFICATION SYSTEM
Water Level at Time
ft - FEET
Drilling, or as Shown
IN - INCHES
Water Level at End of
1
PWR - PARTIALLY WEATHERED ROCK
Drilling, or as Shown
Water Level After 24
- Hours, or as Shown

PROJECT: DEC Allen
WELL / BORING NO: AB-40D
PROJECT NO: 1026.17
STARTED: 9/9/19 COMPLETED: 9/12/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528557.88 EASTING: 1399268.7
DRILLING METHOD: Sonic
G.S. ELEV: 632.07 ft M.P. ELEV: 635.04 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: 25 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
D
DESCRIPTION
W
_j
2
(n
>
L)
W
2
0
2
ii
WELL
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive (FILL)
Ash (sandy Silt); light gray -yellow; dry; coal fragments (3-5
cm)
5
sandy; dark gray; dry; coarse; coal fragments
—
Interbedded F!y Bottom Ash=dLy; thin layers --
Ash (gravelly sand); yellow -brown; dry- non -cohesive; large
coal fragments (>5 cm)
10
-AquaGuard
Ash (sandy silt); light to dark gray; dry; non -cohesive; coal
fragments; interbedded fly and bottom ash
-8" Casing Grout (Portland)
15
-2" PVC Riser
dark gray; fly ash decrease w/ depth
20
—
moist @ 19'; mineralization present w/ pyrite nodules @
—19 ------ ----- -----�
oo
<o
slight yellow -gray tint @ 20'; saturated @21'
25
Clay; yellowiish-red; saturated; stiff; cohesive; organic
matter/roots; cobble - well rounded; micaceous
(muscovite)
30
—
------------------------
No Recovery
35
5.94
Clay w/ silt; light brown/gray, orange; wet; med plastic;
bedded
40
—
_
------------------------
friable=darLgra�red; low P—lastic
5.95
light brown/gray w/ red; low plastic (SAPROLITIC)
45
—
—
------------------------
grades to orange/gray/white; moist; low plastic
__SAPROLIT----------------J
5.51
>'
°
No Recovery 45'-47'
Silt w/ minor clay; dark gray and brown; bedded; moist; low
plastic
4.65
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville,
l864 999aro1ina 29601
Phone: 421- PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-40D
PROJECT NO: 1026.17
STARTED: 9/9/19 COMPLETED: 9/12/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528557.88 EASTING: 1399268.7
DRILLING METHOD: Sonic
G.S. ELEV: 632.07 ft M.P. ELEV: 635.04 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: 25 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
o w
w
U
Qa
�
DESCRIPTION
W
0_
<
Oa
w
2
CL
a)
ii
WELL
CONSTRUCTION
Silty Clay; gray, tan, white w/ mottling; moist; medium
plastic; cohesive (SAPROLITE)
55
5.13
Silt w/ minor clay; dark brown and gray; bedded; moist;
easily friable
Silt w/ clay; mionor sand; gray and white bedded; moist;
_Z%
°
60
soft to firm; fine grained sand — — — — — — — — — — —
5.15
>'
more firm; very fine sand
65
—
------------------------
6.22
grades to green/gray and orange; soft
Silt; dark green/gray/tan mottled; hard
70
6.10
Clay w/ silt; dark green/brown; moist low plastic
(SAPROLITE)
Sandy Silt lens; light brown/white mottled; very fine to fine
sand; firm SAPROLITE
75
5.94
Silt w/ minor clay; green -gray; low plastic - friable;
Silty sand to sandy silt; light brown/white mottled; very fine
80
—
—to fine sand; no plastic; dense (SAPROLITE) — — — — —
6.53
85
cont.
6.95
90
7.47
Silt w/ clay; gray/brown; moist; low plastic; soft
(SAPROLITE)
Sandy silt; light brown/gray/white; hard; very fine to fine
95
—
sand
------------------------
7.05
very hard
7.44
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-40D
PROJECT NO: 1026.17
STARTED: 9/9/19 COMPLETED: 9/12/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528557.88 EASTING: 1399268.7
DRILLING METHOD: Sonic
G.S. ELEV: 632.07 ft M.P. ELEV: 635.04 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: 25 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
moist; soft to firm; fine sand
105
...
—
------------------------
7.53
.
�— - Bentonite Seal
dark gray; PWR present small quantities (DIABASE)
...
7.96
return to SAPROLITE; firm at 112'
cont.
115
7.38
€.•. �— -Filter Sand Pack
clay w/ sand; gray/lightbrown; moist; high plastic
-2" Well Screen
120
Sandy Silt; white; light brown -tan; PWR throughout
8.81
End of Boring at 121'
125
130
135
140
145
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-40SS
PROJECT NO: 1026.17
STARTED: 9/7/19 COMPLETED: 9/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528560.07 EASTING: 1399263.65
DRILLING METHOD: Sonic
G.S. ELEV: 632.03 ft M.P. ELEV: 635.04 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: 25 ft TOC TOTAL DEPTH: 75.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
D
DESCRIPTION
W
J
2
(n
>
L)
W
2
0
2
ii
WELL
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive (FILL)
Ash (sandy Silt); light gray -yellow; dry; coal fragments (3-5
cm)
5
sandy; dark gray; dry; coarse; coal fragments
—
Interbedded F!y Bottom Ash=dLy; thin layers --
Ash (gravelly sand); yellow -brown; dry- non -cohesive; large
coal fragments (>5 cm)
10
-AquaGuard
Ash (sandy silt); light to dark gray; dry; non -cohesive; coal
fragments; interbedded fly and bottom ash
15
�2" PVC Riser
dark gray; fly ash decrease w/ depth
8" Perm. Casing
20
—
moist @ 19'; mineralization present w/ pyrite nodules @
— 19 — — — — — — — — — — — -----�
oo
<o
slight yellow -gray tint @ 20'; saturated @21'
25
Clay; yellowish -red; saturated; stiff; cohesive; organic
matter/roots; cobble - well rounded; micaceous
(muscovite)
No Recovery
35
5.94
Clay w/ silt; light brown/gray, orange; wet; med plastic;
bedded
Bentonite Seal
40
cont.
5.95
light brown/gray w/ red; low plastic (SAPROLITIC)
45
—
grades to orange/gray/white; moist; low plastic
—�SAPROLITI�---------------- J
5.51
:;:
`°' f -Filter Sand Pack
:;,.
:. -2" Well Screen (prepack)
No Recovery 45'-47'
Silt w/ minor clay; dark gray and brown; bedded; moist; :1ow
plastic
4.65
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville,
l864 999aro1ina 29601
Phone: 421- PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: AB-41 D
PROJECT NO: 1026.17
STARTED: 9/11/19 COMPLETED: 10/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528756.108 EASTING: 1398953.501
DRILLING METHOD: Sonic
G.S. ELEV: 632.008 ft M.P. ELEV: 634.553 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 145.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Allard CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
DESCRIPTION
W
J
>
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive; loose
3.97
Ash (sandy silt); light gray -yellow; grade in yellow w/ depth;
large clinkers @ 3'
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.93
5
—
-el—low-brown; mix f� and bottom ash ------
o�
o� -8" Perm. Casing
(silty sand); dry; coal fragments
3.75
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.98
00
00
10
Orange -brown stained @ 9'
-AquaGuard
Bottom Ash (sandy silt); dark gray; dry; non -cohesive
-Portland Grout
15
Fly Ash (silt); light gray; dry; somewhat cohesive
5.18
-2" PVC Riser
Interbedded Fly and Bottom Ash; coal fragments
throughout
20
Silt; yellow -red; micaceous; dry; cobbles - well rounded,
poor sort
Clay w/ silt; tan; moist; cohesive; micaceous
25
Silty Clay; orange/red/tan mottled; wet; cohesive; low
plastic; micaceous (SAPROLITE)
banding; increase silt
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.68
return mottle
35
—
------------------------
3.65
minor banding; grade to tan/brown/orange and minor
white
40
3.60
Silty Clay; tan/white; wet; minor sand - fine to coarse
(SAPROLITE)
45
3.65
Silty clay; brown w/ olive green/orange; moist; tight; fine;
slightly cohesive; low plastic (SAPROLITE)
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-41 D
PROJECT NO: 1026.17
STARTED: 9/11/19 COMPLETED: 10/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528756.108 EASTING: 1398953.501
DRILLING METHOD: Sonic
G.S. ELEV: 632.008 ft M.P. ELEV: 634.553 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 145.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Allard CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
3.85
Sandy Silt; minor clay; tan/white mottled; wet; medium to
fine sand (SAPROLITE)
55
—
— — — — — — — — — — — — — — — — — — — — — — — —
4.58
60
No Recovery
65
—
------------------------
4.88
70
less sand
5.21
75
—
— — — — — — — — — — — — — — — — — — — — — — — —
5.35
80
5.61
loose; very fine sand @ 81'
85
6.54
90
5.98
Silt; dark gray/green; dry (heat from drill); no plastic; hard
95
6.47
Clay; dark green/dark brown and black
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville,
l864 999aro1ina 29601
Phone: 421h PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-41 D
PROJECT NO: 1026.17
STARTED: 9/11/19 COMPLETED: 10/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528756.108 EASTING: 1398953.501
DRILLING METHOD: Sonic
G.S. ELEV: 632.008 ft M.P. ELEV: 634.553 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 145.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Allard CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
Clay; darkgreen/dark brown and black continued
6.08
Silt w/ fine sand; light gray/green/white; dry (heat from
drill); hard (SAPROLITE)
105
6.82
110
Silty Sand; light gray/tan/white; dry (heat from drill); no
plasticity; loose; micaceous
6.13
.
6.76
:.
hard @ 118', 123'
120
6.45
less hard
6.39
>
:..
cont
Sand w/ silt; gray/tan; loose; coarse sand
..
6.95
�— - Bentonite Seal
hard; no plasticity
135
—
— — — — — — — — — — — — — — — — — — — — — — — —
7.45
�— - Filter Sand Pack
No recovery 135'-140'
-2" Well Screen (Pre -pack)
140
145
?�kF
XT
Diorite; gray/white and black; moderately weathered
140'-142'; competent 142'-145'; massive; fresh; coarse
grained;
End of Boring at 145.0'
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-41 SS
PROJECT NO: 1026.17
STARTED: 9/11/19 COMPLETED: 9/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528758.598 EASTING: 1398960.804
DRILLING METHOD: Sonic
G.S. ELEV: 631.887 ft M.P. ELEV: 634.493 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 75.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
DESCRIPTION
W
J
>
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive; loose
3.97
Ash (sandy silt); light gray -yellow; grade in yellow w/ depth;
large clinkers @ 3'
3.93
5
—
yellow -brown; mix f� and bottom ash — — — — — —
—
-8" Perm. Casing
(silty sand); dry; coal fragments
3.75
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.98
10
orange -brown stained @ 9'
-AquaGuard
Bottom Ash (sandy silt); dark gray; dry; non -cohesive
-Portland Cement
15
Fly Ash (silt); light gray; dry; somewhat cohesive
5.18
-2" PVC Riser
interbedded Fly and Bottom Ash; coal fragments
throughout
20
Silt; yellow -red; micaceous; dry; cobbles - well rounded,
poor sort;
Clay w/ silt; tan; moist; cohesive; micaceous
25
Silty Clay; orange/red/tan mottled; wet; cohesive; low
—
plastic; micaceous (SAPROLITE)
— — — — — — — — — — — — — — — — — — — — — — — —
banding; increase silt
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.68
return mottle
35
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.65
minor banding; grade to tan/brown/orange and minor
white
40
3.60
Silty Clay; tan/white; wet; minor sand - fine to coarse
(SAPROLITE)
45
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.65
Silty clay; brown w/ olive green/orange; moist; tight; fine;
slightly cohesive; low plastic (SAPROLITE)
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville,
l864 999aro1ina 29601
Phone: 421- PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-41 SS
PROJECT NO: 1026.17
STARTED: 9/11/19 COMPLETED: 9/9/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528758.598 EASTING: 1398960.804
DRILLING METHOD: Sonic
G.S. ELEV: 631.887 ft M.P. ELEV: 634.493 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 75.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
3.85
Sandy Silt; minor clay; tan/white mottled; wet; medium to
fine sand (SAPROLITE)
55
—
------------------------
4.58
60
No Recovery;
�— - Bentonite Seal
4.88
;' �— -Filter Sand
Pack
70
less sand
-2" Prepack Screen
5.21
5.35
End of Boring at 75'
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-42AP
PROJECT NO: 1026.17
STARTED: 9/14/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528378.95 EASTING: 1399124.22
DRILLING METHOD: Sonic
G.S. ELEV: 631.35 ft M.P. ELEV: 634.10 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: -18 ft TOC TOTAL DEPTH: 40.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J >
2
0
w
Q O
DESCRIPTION 2 L)
LD
WELL
o
�
(n W
ii
CONSTRUCTION
Clay w/ minor silt; red -orange; dry; cohesive
5.41
Ash; Light gray; interbedded fly and bottom ash;
5
non -cohesive; coal fragments throughout
-AquaGuard
5.41
—
— — — — — — — — — — — — — — — — — — — — — — — —
4.57
10
grades to dark gray
-2" PVC Riser
5.27
_
grades to lightt q ay -------------
^°
`
4.52
4.50
15
coarser, sandy; clinkers (burnt coal)
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
grade to dark gray; cohesive; moist to wet
4.52
—
_
— — — — — — — — — — — — — — — — — — — — — — — —
Ash_lig_httgry=flly qsh=moist----------
5.03
>e
°
4.35
25
Ash; dark gray; coarse grained; wet; semi cohesive
- BentoniteSeal
6.06
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
". -Filter Sand Pack
`End of Boring at 32'
35
very coarse grained @ 35', continue coal fragments
5.99
-2" Well Screen (pre -pack)
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: AB-42D
PROJECT NO: 1026.17
STARTED: 8/27/19 COMPLETED: 9/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528383.71 EASTING: 1399127.08
DRILLING METHOD: Sonic
G.S. ELEV: 631.31 ft M.P. ELEV: 634.12 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —18 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J >
2
0
w
Q O
DESCRIPTION 2 L)
LD
WELL
o
�
(n W
ii
CONSTRUCTION
Clay w/ minor silt; red -orange; dry; cohesive
- Portland Cement
5.41
Ash; Light gray; interbedded fly and bottom ash;
5
non -cohesive; coal fragments throughout
-8" Perm. Casing
5.41
4.57
10
grades to dark gray
-A uaGuard
a
5.27
—
rades tolight_gray--------------
4.52
4.50
15
coarser, sandy; clinkers (burnt coal)
-2" PVC Riser
20
grade to dark gray; cohesive; moist to wet
4.52
—
Ash_lig_hU[2y; fly qsh=moist----------
5.03
4.35
25
Ash; dark gray; coarse grained; wet; semi cohesive
6.06
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
35
very coarse grained @ 35', continue coal fragments
5•99
40
—
— — — — — — — — — — — — — — — — — — — — — — — —
45
No recovery; soft
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-42D
PROJECT NO: 1026.17
STARTED: 8/27/19 COMPLETED: 9/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528383.71 EASTING: 1399127.08
DRILLING METHOD: Sonic
G.S. ELEV: 631.31 ft M.P. ELEV: 634.12 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —18 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
55
cont.
6.31
60
5.84
65
Silt w/ Clay; white -tan w/ red and orange foliation;
micaeceous; minor sand
5.85
70
Silt; dark green/brown mottled and black; moist; dens;
friable - no plastic (SAPROLITE)
6.82
75
5.97
Sandy Silt; gray/white/tan mottled; moist; no plasticity;
micaceous (SAPROLITE)
80
6.02
85
—
— — — — — — — — — — — — — — — — — — — — — — — —
cont.
90
—
— — — — — — — — — — — — — — — — — — — — — — — —
95
cont.
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-42D
PROJECT NO: 1026.17
STARTED: 8/27/19 COMPLETED: 9/25/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528383.71 EASTING: 1399127.08
DRILLING METHOD: Sonic
G.S. ELEV: 631.31 ft M.P. ELEV: 634.12 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —18 ft TOC TOTAL DEPTH: 121.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
�— - Bentonite Seal
105
No recovery
110
�— -Filter Sand Pack
�,
F
-2" Pre -pack Well Screen
f
Diorite; gray/white and black; coarse; massive; fresh;
115
f kF
coarse grained; loss recovery 110'-115' in pan (out of
order)
fv� xT
f F
-Benton ite BackfiII
120
'
End of Boring at 120.0'
125
130
135
140
145
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-42SS
PROJECT NO: 1026.17
STARTED: 8/28/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528381.08 EASTING: 1399120.03
DRILLING METHOD: Sonic
G.S. ELEV: 631.24 ft M.P. ELEV: 634 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: -18 ft TOC TOTAL DEPTH: 85.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J >
2
0
w
Q O
DESCRIPTION 2 L)
LD
WELL
o
�
(n W
ii
CONSTRUCTION
Clay w/ minor silt; red -orange; dry; cohesive
- Portland Grout
5.41
Ash; Light gray; interbedded fly and bottom ash;
5
non -cohesive; coal fragments throughout
-8" Perm Casing
5.41
4.57
10
grades to dark gray
-A uaGuard
a
5.27
—
rades tolight_gray--------------
4.52
4.50
15
coarser, sandy; clinkers (burnt coal)
-2" PVC Riser
20
grade to dark gray; cohesive; moist to wet
4.52
—
Ash_lig_hU[2y; fly qsh=moist----------
5.03
4.35
25
Ash; dark gray; coarse grained; wet; semi cohesive
6.06
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
35
very coarse grained @ 35', continue coal fragments
5•99
40
—
— — — — — — — — — — — — — — — — — — — — — — — —
45
No recovery; soft
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-42SS
PROJECT NO: 1026.17
STARTED: 8/28/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528381.08 EASTING: 1399120.03
DRILLING METHOD: Sonic
G.S. ELEV: 631.24 ft M.P. ELEV: 634 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: -18 ft TOC TOTAL DEPTH: 85.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
55
cont.
6.31
60
5.84
65
Silt w/ Clay; white -tan w/ red and orange foliation;
micaeceous; minor sand
5.85
70
Silt; dark green/brown mottled and black; moist; dens;
friable - no plastic (SAPROLITE)
�- - Bentonite Seal
6.82
75
5.97
-Filter Sand Pack
Sandy Silt; gray/white/tan mottled; moist; no plasticity;
micaceous (SAPROLITE)
80
-2" Pre -pack Well Screen
6.02
85-99
— --
— — — — — — — — — — — — — — — — — — — — — — — —
End of Boring at 85'
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-43AP
PROJECT NO: 1026.17
STARTED: 9/16/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528284.27 EASTING: 1398900.44
DRILLING METHOD: Sonic
G.S. ELEV: 630.25 ft M.P. ELEV: 632.98 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: -20 ft TOC TOTAL DEPTH: 40.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
DESCRIPTION
W
J
O
Lu
W
2
0
LD
ii
WELL
CONSTRUCTION
5.24
4.64
5
5.35
—
interbedded fly and bottom ash;
— — — — — — — — — — — — — — — — — — — — — — — —
10
4.78
-2" PVC Riser
-AquaGuard
15
interbedded fly and bottom ash
4.87
6.08
No recovery 20'-25'
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.33
°
e°
�- - Bentonite Seal
saturated
6.75
Filter Sand Pack
35
No recovery 30'-40' - very soft, saturated
-2" Well Screen
40
End of Boring at 40.0'
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: AB-43D
PROJECT NO: 1026.17
STARTED: 8/28/19 COMPLETED: 9/18/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528280.05 EASTING: 1398901.61
DRILLING METHOD: Sonic
G.S. ELEV: 630.17 ft M.P. ELEV: 632.98 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 100.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
DESCRIPTION
W
J
>
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay w/ silt; yellow -red; dry; non -cohesive; loose
5.24
Ash (sandy silt); light gray; dry; non -cohesive; fine to
coarse;
4.64
5
....
—
coal fragments present; clinkers present
------------------------
5.35
00
^`
0<
-8" Perm. Casing
interbedded fly and bottom ash;
10
4.78
-AquaGuard
15
interbedded fly and bottom ash
4.87
-2" PVC Riser
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.08
No recovery 20'-25'
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.33
0
'o
saturated
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.75
0
'o
35
No recovery 30'-45'
40
45
6.71
Clay; gray -tan; saturated; cohesive; stiff; organics/roots @
45'
6.13
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-43D
PROJECT NO: 1026.17
STARTED: 8/28/19 COMPLETED: 9/18/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528280.05 EASTING: 1398901.61
DRILLING METHOD: Sonic
G.S. ELEV: 630.17 ft M.P. ELEV: 632.98 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 100.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
O
2
0
w
Q
DESCRIPTION
WELL
o
�
ii
CONSTRUCTION
Clay; green/light brown/ blue gray; moist; cohesive; high
6.05
plastic (fat clay); stiff
55
Silty Clay; brown and gray; moist; less stiff; occasional
gravel
6.38
cont.
60
5.98
Sandy Silt; gray/white; moist; very fine to fine
sand;micaceous (SAPROLITE)
65
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.05
70
.:
softer; brown/gray/white
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.75
°
friable
75
—
— — — — — — — — — — — — — — — — — — — — — — — —
80
�— - Bentonite Seal
lens of silt/clay <2' thick
85
�— -Filter Sand Pack
90
-2" Pre -pack Well Screen
?kF
PWR, gray/white and black; intensely weathered; weak w/
increasing strength at 94'
95
?kF
Diorite; gray/white and black; slgithly weathered; coarse
grained; massive @ 97';
Benton nite BackfiII
End of Boring at 100.0'
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-43SS
PROJECT NO: 1026.17
STARTED: 9/14/19 COMPLETED: 9/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528283.69 EASTING: 1398895.8
DRILLING METHOD: Sonic
G.S. ELEV: 630.33 ft M.P. ELEV: 633.02 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 75.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
DESCRIPTION
W
J
>
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay w/ silt; yellow -red; dry; non -cohesive; loose
5.24
Ash (sandy silt); light gray; dry; non -cohesive; fine to
coarse;
4.64
5
....
—
coal fragments present; clinkers present
------------------------
5.35
00
^`
0<
-8" Perm. Casing
interbedded fly and bottom ash;
10
4.78
-AquaGuard
15
interbedded fly and bottom ash
4.87
-2" PVC Riser
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.08
No recovery 20'-25'
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.33Portland
Cement
saturated
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.75
0
'o
35
No recovery 30'-45'
40
45
6.71
Clay; gray -tan; saturated; cohesive; stiff; organics/roots @
45'
6.13
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-43SS
PROJECT NO: 1026.17
STARTED: 9/14/19 COMPLETED: 9/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528283.69 EASTING: 1398895.8
DRILLING METHOD: Sonic
G.S. ELEV: 630.33 ft M.P. ELEV: 633.02 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —20 ft TOC TOTAL DEPTH: 75.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
O
2
0
w
IL Q O
DESCRIPTION
WELL
o
�
ii
CONSTRUCTION
Clay; green/light brown/ blue gray; moist; cohesive; high
6.05
plastic (fat clay); stiff
55
Silty Clay; brown and gray; moist; less stiff; occasional
gravel
6.38
cont.
60
�— - Bentonite Seal
5.98
Sandy Silt; gray/white; moist; very fine to fine
sand;micaceous (SAPROLITE)
65
�— -Filter Sand Pack
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.05
70
.:
softer; brown/gray/white
-2" Well Screen
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.75
friable
75
End of Boring at 75.0'
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-44AP
PROJECT NO: 1026.17
STARTED: 9/16/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528569.74 EASTING: 1398923.46
DRILLING METHOD: Sonic
G.S. ELEV: 631.10 ft M.P. ELEV: 633.78 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: -25 ft TOC TOTAL DEPTH: 25.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
>
2
0
w
Q O
DESCRIPTION
2
L)
LD
WELL
o
�
(n
W
ii
CONSTRUCTION
See SB-17 for detailed Lithographic Desc.
-AquaGuard
10
-2" PVC Riser
15
20
25
End of Boring at 25.0'
30
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: AB-44D
PROJECT NO: 1026.17
STARTED: 9/10/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528571.73 EASTING: 1398919.62
DRILLING METHOD: Sonic
G.S. ELEV: 631.24 ft M.P. ELEV: 633.86 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: -25 ft TOC TOTAL DEPTH: 140.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
�
DESCRIPTION
W
J
2
(n
>
L)
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay; red -orange; cohesive; plastic; dry; minor sand
3.22
5
Ash; light gray and minor yellow; bottom ash mixed w/ fly
ash; large coal fragments present
3.37
3.57
10
dark gray; fewer coal fragments
-2" PVC Riser
Clay lens
3.67
15
-AquaGuard
3.79
Ash; light gray and minor yellow; fly ash; saturated; few
20
coal pieces
4.24
25
3.97
-8" Permenant Casing
3.97
Silt w/ clay; reddish brown; non -cohesive; saturated; river
cobbles (well rounded)
4.12
30
Sandy Gravel; white and brown; non -cohesive; saturated;
river cobble (well rounded)
35
8.41
Silt w/ clay; brown; saturated; semi -cohesive; large cobbles
(well rouded); soft
40
4.93
Silt w/ clay; tan/brown/white; saturated; coarse/well
rounded cobble; micaceous
Sandy Silt; tan/brown/white; saturated; micaceous
45
Silt w/ minor sand; brown; saturated; semi -cohesive;
5.24
micaceous (SAPROLITE)
5.34
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-44D
PROJECT NO: 1026.17
STARTED: 9/10/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528571.73 EASTING: 1398919.62
DRILLING METHOD: Sonic
G.S. ELEV: 631.24 ft M.P. ELEV: 633.86 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —25 ft TOC TOTAL DEPTH: 140.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
ILO
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
decrease sand
55
6.16
—
silt lens; dark reen; return tan/brown/white C 55 ---
cont.
60
—
brown/orange banding prevelant
— — — — — — — — — — — — — — — — — — — — — — — —
6.64
cont.
....
7.62
cont., non -cohesive; rock fragments (Diorite) present
70
Silt; dark green -brown, orange banding; hard; relic
structure (SAPROLITE)
6.36
75
7.3
Silt w/ minor sand; brown -white; semi to non -cohesive;
80
dense;hard; relic structure (SAPROLITE)
7.36
85
7.81
Silt; darkgreen-brown; semi -cohesive; micaceous
Silt; minor sand; similar to 72'-86'
Silt; darkgreen-brown; semi -cohesive; micaceous
Silt; minor sand; similar to 72'-86'
90
7.52
95
No Recovery 90'-100'
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenvlle, Souths
999aro1ina 29601
mTerra Phone:l864 421- PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-44D
PROJECT NO: 1026.17
STARTED: 9/10/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528571.73 EASTING: 1398919.62
DRILLING METHOD: Sonic
G.S. ELEV: 631.24 ft M.P. ELEV: 633.86 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: -25 ft TOC TOTAL DEPTH: 140.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
105
No Recovery 100'-110'
110
115
No Recovery 110'-119'
120
7.31
—
Sand w/ clay; greenish -gray; medium grain sand; low
_Pastic-------------------�
:•,.::.:
clay grades to silt
�- - Bentonite Seal
Sandy Silt; gray/white/dark green; layered; medium grained
sand; dense
7.82
grade out green; no plasticity
130
7.84
-Filter Sand Pack
`2" Pre -pack Well Screen
silt; minor clay; dark greenish -gray and brown; bedded; no
plasticity
135
7.71
no recover
f �T
?kF
Diorite; gray/white and black; coarse grained; massive;
fresh; minor weathered
- Benton ite BackfiII
140
End of Boring at 140.0'
145
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: AB-44SS
PROJECT NO: 1026.17
STARTED: 9/10/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528569.74 EASTING: 1398923.46
DRILLING METHOD: Sonic
G.S. ELEV: 631.06 ft M.P. ELEV: 633.75 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —25 ft TOC TOTAL DEPTH: 65.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
�
DESCRIPTION
W
J
2
(n
>
L)
W
2
0
LD
ii
WELL
CONSTRUCTION
Clay; red -orange; cohesive; plastic; dry; minor sand
3.22
5
Ash; light gray and minor yellow; bottom ash mixed w/ fly
ash; large coal fragments present
3.37
-AquaGuard
3.57
10
dark gray; fewer coal fragments
-2" PVC Riser
Clay lens
3.67
15
-8" Permanent Casing
3.79
Ash; light gray and minor yellow; fly ash; saturated; few
20
coal pieces
4.24
25
3.97
3.97
Silt w/ clay; reddish brown; non -cohesive; saturated; river
cobbles (well rounded)
4.12
30
Sandy Gravel; white and brown; non -cohesive; saturated;
river cobble (well rounded)
35
8.41
Silt w/ clay; brown; saturated; semi -cohesive; large cobbles
(well rouded); soft
40
4.93
Silt w/ clay; tan/brown/white; saturated; coarse/well
rounded cobble; micaceous
Sandy Silt; tan/brown/white; saturated; micaceous
45
Silt w/ minor sand; brown; saturated; semi -cohesive;
5.24
micaceous (SAPROLITE)
5.34
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: AB-44SS
PROJECT NO: 1026.17
STARTED: 9/10/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 528569.74 EASTING: 1398923.46
DRILLING METHOD: Sonic
G.S. ELEV: 631.06 ft M.P. ELEV: 633.75 ft
BOREHOLE DIAMETER: 12,7,E IN
DEPTH TO WATER: —25 ft TOC TOTAL DEPTH: 65.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
ILO
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
- BentoniteSeal
decrease sand
6.16
55
—
silt lens; dark_green; return tan/brown/white C 55' --�
cont.
brown/orange banding prevelant
Filter Sand Pack
60
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.64
-2" Pre -pack Screen
cont.
7.62
End of Boring at 65.0'
70
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: CP-2BR
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 10/5/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: NA ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 10,8,7,E IN
DEPTH TO WATER: NA ft TOC TOTAL DEPTH: 277.0 ft BGS
NOTES: Abandoned
LOGGED BY: M. Fenn CHECKED BY: A. Li sk
2
U
=
W
J
>
2
0
w
IL Q O
DESCRIPTION
2
L)
2
WELL
o
�
ii
CONSTRUCTION
5—
-AquaGuard
10
-2" PVC Riser
15
20
25
See CP-2D for 0'-67' Lithology
30
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 6

PROJECT: DEC Allen
WELL zBORING NO: CP2BR
PROJECT NO : 1026.17
STARTED: B2z1Jg COMPLETED: 105zdg
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTNG:
DRILLING METHOD: Sonic
G.S. OEv a M.P. OEv a
BOREHOLE DIAMETER: 2»7,e&
DEPTH TOWATER: NAaTOc TOTAL DEPTH: yToaeS
NOTES: Abandoned
LOGGED BYEFenn CHECKED BY: %bA
(�
Lu
�CD
$ j
®
/
DESCRIPTION
}
2
O2
L)
\
WELL
e
§
/
LU
7
E
CONSTRUCTION
55
\
}
Seec -2D U m67 wUmy(continued)
\
}
m
}
}
6
\
}
\
}
DiabasGdark gray » black; fine grained; massive
=��
3
Diorite (minor �a�;white/grayandAc massive;5
[\�,
32&
-
coarse � ied
2
}
°
—
— — — — — — — — — — — — — — — — — — — — — — — —
75
{
«« 9
_km near vertical h&m;6nswq
yam+
a
,
------------------------
=
_+m quartz increae
A� eUah 4oms Mn
m
t\.
,
WW2
z
return Diorite
85
�W»
� �&!
m
{
«« 9
mce%m±mn(or)
y_� +
«
d2
.&<
Diorite; grayzh#and black
WW2
G#ma
cI�em6Uey
,q
River ste,Suite »o
PROJECT
LOCATION:
Belmont, North Carolina
ym,
�Te[�Greenville,
hoe86 42,n9ie
PAGE 2OF6

PROJECT: DEC Allen
WELL zBORING NO: CP2BR
PROJECT NO : 1026.17
STARTED: B2z1Jg COMPLETED: 105zdg
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTNG:
DRILLING METHOD: Sonic
G.S. OEv a M.P. OEv a
BOREHOLE DIAMETER: 2»7,e&
DEPTH TOWATER: NAaTOc TOTAL DEPTH: yToaeS
NOTES: Abandoned
LOGGED BYEFenn CHECKED BY: %bA
(�
Lu
�o
$ j
®
/
DESCRIPTION
}
2
O2
L)
\
WELL
e
§
/
LU
7
E
CONSTRUCTION
=
Diorite; grayzh#and black (n a$
\
}
Abaselens; dark gray; massive; mstained h&contact
,a
\
}
� wa
11°
return Diorite
�d2
©
—
— — — — — — — — — — — — — — — — — — — — — — — —
2
°
WW2
!
,m
� � ?
z
healed h & v«Erecovery 2G,27,_ynd
-}
� wa
_ &<_
—
------------------------
=��
,+
d2
WW2
z
,a
}
cont. - mechanically induced h
WW2
t\. ,
WW2
,«
d2
Diabasean ASslightly _a _¢mswq
\
}
_&
apparent
!
Diorb+ae
[\
}
}
cI�em6Uey
G#ma
,qRiver ste,Suite »o PROJECT LOCATION: Belmont, North Carolina
m,
�Te[�Greenville,
hoe86 421-9999 PAGE 3OF6

PROJECT: DEC Allen
WELL / BORING NO: CP-2BR
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 10/5/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: NA ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 10,8,7,E IN
DEPTH TO WATER: NA ft TOC TOTAL DEPTH: 277.0 ft BGS
NOTES: Abandoned
LOGGED BY: M. Fenn CHECKED BY: A. Li sk
2
w
U
=
IL Q O
DESCRIPTION
W
J
2
>
L)
2
0
2
WELL
o
ii
CONSTRUCTION
,t xT
Diorite; white/gray and black; massive; coarse grained; 1
155
frx @ 150' @ 50*, tight, pores; packer test yields no water
�'z��kF
f XT
160
:t'ti�'xT
f �T
frx @ 159', 162' 164.5', @ -30'; healed
165
,-,.� h
f� XT
?4kF
'
frx @ 169', @20*; no staining; no yield
f� XT
?f kF
-----------------------------
e>
180
xT
--�
frx @ 175' @ 20*; minor staining; no yield
f� XT
185��F
f� XT
fkF
�
----------------------------
frx @ 189' @ 45*; mineralized; competent in remainder of
,-
run
,.
_--------------------�
?�k
very hard; 6' return solid core; increase amphibole
minerals
?kF
frx zone 1955; slightly weathered; very light Mn Stained;
recharge in borehole is minor
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 4 OF 6

PROJECT: DEC Allen
WELL / BORING NO: CP-2BR
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 10/5/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: NA ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 10,8,7,E IN
DEPTH TO WATER: NA ft TOC TOTAL DEPTH: 277.0 ft BGS
NOTES: Abandoned
LOGGED BY: M. Fenn CHECKED BY: A. Li sk
2
w
U
=
IL Q O
DESCRIPTION
W
J
2
>
L)
2
0
2
WELL
o
ii
CONSTRUCTION
weaker; mech frx
- Bentonite Seal
205f--�
XT
—
-----------------------
�XT
210
�F
Filter Sand Pack
f �r
�kF
10'2" recovery (solid core); healed @ 211,
-2" Well Screen(pre-pack)
215
�;
cont.
225
Diabase Lense
f� F
Diorite returns; no viable fractures; very hard
230;�?
Diabase; dark gray; fine; massive; healed joints @232.5';
slightly weathered contact @ 236.5
235
41�f '
240
; x%
Diorite; white/gray and black; massive; coarse grained;
fresh
245
f� XT
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)MTraGreenville, 9PAGE 5 OF 6

PROJECT: DEC Allen
WELL / BORING NO: CP-2BR
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 10/5/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: NA ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 10,8,7,E IN
DEPTH TO WATER: NA ft TOC TOTAL DEPTH: 277.0 ft BGS
NOTES: Abandoned
LOGGED BY: M. Fenn CHECKED BY: A. Li sk
2
w
U
=
IL Q O
DESCRIPTION
W
J
2
>
L)
2
0
2
WELL
o
0
ii
CONSTRUCTION
t xT
?kF
Diorite; white/gray and black; massive; coarse grained;
fresh (continued)
Diabase/Diorite; dark gray; fine to med. grained; w/ Diorite
255
Lens - slightly altered; weaker; no staining evident
260
-f,
fXT
�'z��kF
f� XT
265
`
Diorite; white/gray and black; massive; coarse grained;
fresh
f� XT
270
f� XT
275
f� XT
280
285
290
295
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 6 OF 6

PROJECT: DEC Allen
WELL / BORING NO: GWA-27D
PROJECT NO: 1026.17
STARTED: 9/27/19 COMPLETED: 9/30/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529133.98 EASTING: 1398998.22
DRILLING METHOD: Sonic
G.S. ELEV: 625.22 ft M.P. ELEV: 628.22 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: —30 ft TOC TOTAL DEPTH: 170.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
O
W
J
>
2
0
w
Q
DESCRIPTION
L)
LD
WELL
o
I
W
ii
CONSTRUCTION
5
Hydro-vac'd prior to drilling for utility clearance - no
-AquaGuard
recovery
10
-2" PVC Riser
Silty Clay; red -orange; dry; cohesive; plastic; minor sand
(FILL)
15
Silt w/ Clay; red -orange; non -cohesive; non-platic; loose;
dry to moist; (FILL)
mottled; wet
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
25—
increase clay; cohesive; low plastic; grade in tan
30
35
Clay w/ Silt; <20% sand; tan -orange, black banding; wet;
cohesive; medium (SAPROLITE)
40
45
Sandy Silt; minor clay; tan and white mottled; saturated;
fine to medium grained sand (SAPROLITE)
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 4

PROJECT: DEC Allen
WELL / BORING NO: GWA-27D
PROJECT NO: 1026.17
STARTED: 9/27/19 COMPLETED: 9/30/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529133.98 EASTING: 1398998.22
DRILLING METHOD: Sonic
G.S. ELEV: 625.22 ft M.P. ELEV: 628.22 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: —30 ft TOC TOTAL DEPTH: 170.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
Sandy Silt; minor clay; tan and white mottled; saturated;
fine to medium grained sand (SAPROLITE) (continued)
55
increase fine sand
60
Silt w/ Clay; olive green and tan w/ black banding;
saturated; cohesive; low plastic (SAPROLITE)
65
Sandy Silt; minor clay; tan and white mottled; saturated;
fine to medium grained sand (SAPROLITE)
70
_
Sand lens, medium/coarsegrained _ _ _ _ _ _ _
75
80
85
cont.
90
95
Ki
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 2 OF 4

PROJECT: DEC Allen
WELL / BORING NO: GWA-27D
PROJECT NO: 1026.17
STARTED: 9/27/19 COMPLETED: 9/30/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529133.98 EASTING: 1398998.22
DRILLING METHOD: Sonic
G.S. ELEV: 625.22 ft M.P. ELEV: 628.22 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: —30 ft TOC TOTAL DEPTH: 170.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
105
cont. (continued)
115
Limited recovery; washout from core barrel, driller retrieved
5' sand (fine to coarse grained)
120
—
— — — — — — — — — — — — — — — — — — — — — — — —
>>
125
130
135
No recovery; wet cored, cut similar to previous; harder
formation; drill water remains same throughout run.
140
145
�— - Bentonite Seal
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenvlle, SouthSynTerra 999aro1ina 29601
Phone:l864 421- PAGE 3 OF 4

PROJECT: DEC Allen
WELL / BORING NO: GWA-27D
PROJECT NO: 1026.17
STARTED: 9/27/19 COMPLETED: 9/30/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529133.98 EASTING: 1398998.22
DRILLING METHOD: Sonic
G.S. ELEV: 625.22 ft M.P. ELEV: 628.22 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: —30 ft TOC TOTAL DEPTH: 170.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
No recovery; wet cored, cut similar to previous; harder
formation; drill water remains same throughout run.
(continued)
�— -Filter Sand Pack (1' below,
155
backfill above Aquaguard)
Heavy rig chatter (driller notes confidence in rock contact)
�2" Well Screen (pre -pack)
continue run; @152'
Filter Sand Pack (1' Below
screen, backfill)
160
165
,t xT
Diorite; black and white; coarse grained; fresh; minor
? kF
weathered contact 160'-161'; mech frx below 161'
- Benton ite BackfiII
f� XT
170
End of Boring at 170.0'
175
180
185
190
195
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 4 OF 4

PROJECT: DEC Allen
WELL / BORING NO: GWA-27S
PROJECT NO: 1026.17
STARTED: 9/30/19 COMPLETED: 10/1/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529127.01 EASTING: 1399002.26
DRILLING METHOD: Sonic
G.S. ELEV: 625.56 ft M.P. ELEV: 628.39 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: -30 ft TOC TOTAL DEPTH: 64.5 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
O
W
J
>
2
0
w
Q
DESCRIPTION
L)
LD
WELL
o
I
W
ii
CONSTRUCTION
5
hydro-vac'd prior to drilling for utility clearance - no
recovery
10
-2" PVC Riser
Silty Clay; red -orange; dry; cohesive; plastic; minor sand
(FILL)
15
Silt w/ Clay; red -orange; non -cohesive; non-platic; loose;
dry to moist; (FILL)
mottled; wet
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
-AquaGuard
25
increase clay; cohesive; low plastic; grade in tan
30
35
Clay w/ Silt; <20% sand; tan -orange, black banding; wet;
cohesive; medium (SAPROLITE)
40
45
Sandy Silt; minor clay; tan and white mottled; saturated;
�- - Bentonite Seal
7.
fine to medium grained sand (SAPROLITE)
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-27S
PROJECT NO: 1026.17
STARTED: 9/30/19 COMPLETED: 10/1/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529127.01 EASTING: 1399002.26
DRILLING METHOD: Sonic
G.S. ELEV: 625.56 ft M.P. ELEV: 628.39 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: -30 ft TOC TOTAL DEPTH: 64.5 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
Sandy Silt; minor clay; tan and white mottled; saturated;
fine to medium grained sand (SAPROLITE) (continued)
�- - Filter Sand Pack
55
:�
2" Well Screen
increase fine sand
60
Silt w/ Clay; olive green and tan w/ black banding;
saturated; cohesive; low plastic (SAPROLITE)
Sandy Silt; minor clay; tan and white mottled; saturated;
- Benton ite BackfiII
fine to medium grained sand (SAPROLITE)
65
End of Boring at 65.0'
70
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-28BR
PROJECT NO: 1026.17
STARTED: 10/7/19 COMPLETED: 10/15/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529724.144 EASTING: 1399863.122
DRILLING METHOD: Sonic
G.S. ELEV: 589.168 ft M.P. ELEV: 588.618 ft
BOREHOLE DIAMETER: 10,7,E IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 150.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
5
No recovery; hydro -vac excavated for utility clearing
° �— -AquaGuard
10
-2" PVC Riser
Silty Clay; minor sand; brown -tan and orange; minor black
_
staining; cohesive; low plastic; micaceous; moist to wet
-
15
—
— — — — — — — — — — — — — — — — — — — — — — — —
20
increase sand, saturated @17' (saprolitic)
25
Silt w/ clay; orange -brown; black banding; wet; slightly
cohesive; fine; soft (SAPROLITE)
30
35
S.
Sandy Silt; minor clay; tan/white mottled; wet; fine to
medium grained sand (SAPROLITE)
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-28BR
PROJECT NO: 1026.17
STARTED: 10/7/19 COMPLETED: 10/15/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529724.144 EASTING: 1399863.122
DRILLING METHOD: Sonic
G.S. ELEV: 589.168 ft M.P. ELEV: 588.618 ft
BOREHOLE DIAMETER: 10,7,E IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 150.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
U
=
IL Q O
DESCRIPTION
W
J
CL
2
>
L)
2
0
WELL
o
�
LD
ii
CONSTRUCTION
dry core refusal at 50' dry core; switch to water core; no
55
:
recovery
60
t xT
Diorite; white/gray and black; massive; fresh; coarse
grained; slightly altered (minor bedding); competent
65
F3r�
f XT
—
frx aQ 15*=sIghtly weathered; no evident Fe/Mn Staining
-
70
�T
mech induced frx throughout; minor alteration
75
'0*r
f XT
�kF
77'-80' slightly weaker; all mech. Induced frx
—
— — — — — — — — — — — — — — — — — — — — — — — —
°>
85
fv'xT
cont.
f� XT
90Af
—
frx @ 60*; minor Fe Staining; moderately weathered; low
�T
Vield---------------------
°>
95
-
Diabase sill; dark gray; weak; fine; healed @ 45*; no
staining
Diorite return cont.
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-28BR
PROJECT NO: 1026.17
STARTED: 10/7/19 COMPLETED: 10/15/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529724.144 EASTING: 1399863.122
DRILLING METHOD: Sonic
G.S. ELEV: 589.168 ft M.P. ELEV: 588.618 ft
BOREHOLE DIAMETER: 10,7,E IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 150.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
U
=
Q O
DESCRIPTION
W
J
>
2
0
WELL
o
ii
CONSTRUCTION
Diorite return cont. (continued)
Diabase sill; dark gray; weak; fine; moderately weathered;
105
frx 45' - no staining, no yield
F
f�
Diorite return cont.
F3 1 ,
110
—
— — — — — — — — — — — — — — — — — — — — — — — —
slightly weathered; lost recovery in pan (no re -orientation
M,xT
possible) no staining
°
115Sk
cont.
'
—
119' - frx a�70 - lightjy athered; no staining — — — �
----
120
-x�
?�kF
Cont.
125
`-
x'r
- BentoniteSeal
weaker; slightly altered 122'-124' (meta)
130,
�� kF
Diabase; dark gray; fine grained; weak; moderately
weathered; frx 132'-134' @ 45' w/ minor Fe staining;
heavy mineralization
135?kF
-2" Well Screen
Diorite - cont.
-Filter Sand Pack
kF
140�
' -
—
Weaker; weathered_139'-139.5' no stainina----
-- ------------
f��XT
fkF
core fell 140'-142'; out of order; no frx; lower ROD
Diorite, cont.
-Bentonite Back Fill
End of Boring at 150.0'
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenvlle, Souths
999aro1ina 29601
mTerra Phone:l864 421- PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-28D
PROJECT NO: 1026.17
STARTED: 10/16/19 COMPLETED: 10/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529710.5495 EASTING: 1399867.237
DRILLING METHOD: Sonic
G.S. ELEV: 589,172 ft M.P. ELEV: 588.715 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 52.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
5
No recovery; hydro -vac excavated for utility clearing
° �- -AquaGuard
10
-2" PVC Riser
Silty Clay; minor sand; brown -tan and orange; minor black
_
staining; cohesive; low plastic; micaceous; moist to wet
-
15
—
— — — — — — — — — — — — — — — — — — — — — — — —
20
SAA; increase sand, saturated @17' (saprolitic)
25
Silt w/ clay; orange -brown; black banding; wet; slightly
cohesive; fine; soft (SAPROLITE)
30
35
Sandy Silt; minor clay; tan/white mottled; wet; fine to
medium grained sand (SAPROLITE)
Bentonite Seal
40
.
45Filter
Sand Pack
`2" Well Screen
;1
x'r
F
Diorite; white/gray and black; coarse; massive; fresh; no
f�
frx - Ledge evident? At GWA-28 BR, rock contact at -58'
g
BGS
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-28D
PROJECT NO: 1026.17
STARTED: 10/16/19 COMPLETED: 10/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529710.5495 EASTING: 1399867.237
DRILLING METHOD: Sonic
G.S. ELEV: 589,172 ft M.P. ELEV: 588.715 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 52.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
CL
>
2
0
w
IL Q O
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
x'r
F
Diorite; white/gray and black; coarse; massive; fresh; no
f�
frx - Ledge evident? At GWA-28 BR, rock contact at -58'
(continued)
BGS continued
�- - Benton ite Backfill
,��,���_
End of Boring at 54.0'
55
60
65
70
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-28S
PROJECT NO: 1026.17
STARTED: 10/17/19 COMPLETED: 10/17/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529717.2795 EASTING: 1399865.108
DRILLING METHOD: Sonic
G.S. ELEV: 589.435 ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 14 ft TOC TOTAL DEPTH: 32.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
5
No recovery; hydro -vac excavated for utility clearing
AquaGuard
10
-2" PVC Riser
Silty Clay; minor sand; brown -tan and orange; minor black
_
staining; cohesive; low plastic; micaceous; moist to wet
-
15
—
------------------------
�— - Bentonite Seal
20
increase sand, saturated @17' (saprolitic)
25—
-Filter Sand pack
Silt w/ clay; orange -brown; black banding; wet; slightly
-2" Well Screen (pre -pack)
cohesive; fine; soft (SAPROLITE)
30
—
------------------------
set well in finer saprolite for needed well separation
between D and S wells
End of Boring at 32.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: GWA-29BR
PROJECT NO: 1026.17
STARTED: 9/12/19 COMPLETED: 9/13/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530064.33 EASTING: 1400253.99
DRILLING METHOD: Sonic
G.S. ELEV: 579.36 ft M.P. ELEV: 579.09 ft
BOREHOLE DIAMETER: 8,7,6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
5
hydro-vac'd prior to drilling for utility clearance - no
AquaGuard
recovery
10
-2" PVC Riser
i
Silty Clay; red/orange; dry to moist; cohesive; plastic;
minor sand (FILL)
15
—
— — — — — — — — — — — — — — — — — — — — — — — —
very stiff; wet WT —14'
20
Sandy Clay; minor silt; reddish orange/tan; saturated;
cohesive; soft to stiff w/ depth
25
silty Clay; w/ minor sand; light brown/tan and white;
mottled; micaceous; saturated
30
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
35
Clay w/ minor silt; light brown and olive green; cohesive;
—
plastic; wet (SAPROLITE)
------------------------
40
increase silt; cohesive; low plastic
45
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-29BR
PROJECT NO: 1026.17
STARTED: 9/12/19 COMPLETED: 9/13/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530064.33 EASTING: 1400253.99
DRILLING METHOD: Sonic
G.S. ELEV: 579.36 ft M.P. ELEV: 579.09 ft
BOREHOLE DIAMETER: 8,7,6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
U
=
IL Q O
DESCRIPTION
W
J
CL
2
>
L)
2
0
WELL
o
LD
ii
CONSTRUCTION
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
continued
Silt; minor clay; grey/olive and orange banding; slightly
cohesive; low plastic; very tight (SAPROLITE)
55
—
dabase lens; highly weathered; face reduced to clay/silt;
\—tig-ht— — — — — — — — — — — — — — — — — — — -
°>
cont.
60
Sandy Silt; light brown/tan and white; non -cohesive; fine to
medium grained sand (SAPROLITE)
65
Diabase; dark grey; fine; slightly weathered at
SAP/Bedrock contact; mechanically induced frx; no
staining
70
F
f�
Metaquartz Diorite; black and white; coarse grained
—
fracture at 45"; slig_ht!y weathered=no stainin — — — —
'
75
f�
XT
80f�
F
cont.
f�
XT
85
Diabase; dark grey; fine; mech induced frx; massive; fine
90
grained; several healed joints
M�
z
'
�— - Bentonite Seal
'kF
��
Diorite; black and white; coarse grained; fracture at 93' at
95
3
60' 93.5' at 60'. Slightly weathered; no staining;
�T
Diabase; dark grey; fine grained; instensely weathered;
mechanically induced and natural fractures throughout; Fe
and Mn staining prevalent throughout;
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-29BR
PROJECT NO: 1026.17
STARTED: 9/12/19 COMPLETED: 9/13/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530064.33 EASTING: 1400253.99
DRILLING METHOD: Sonic
G.S. ELEV: 579.36 ft M.P. ELEV: 579.09 ft
BOREHOLE DIAMETER: 8,7,6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 107.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
W
J
>
2
0
w
Q O
DESCRIPTION
WELL
o
ii
CONSTRUCTION
�— -Filter Sand Pack
Diabase; dark grey; fine grained; instensely weathered;
-2" Well Screen
mechanically induced and natural fractures throughout; Fe
and Mn staining prevalent throughout; (continued)
105
Diorite; black and white; coarse grained; weathered at 105'
minimal staining; terminate advancing borehole past 107'
BGS.
End of Boring at 107.0'
110
115
120
125
130
135
140
145
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 3 OF 3

PROJECT: DEC Allen
WELL / BORING NO: GWA-29D
PROJECT NO: 1026.17
STARTED: 9/13/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530058.8 EASTING: 1400256.91
DRILLING METHOD: Sonic
G.S. ELEV: 579.41 ft M.P. ELEV: 579.04 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 70.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
5
hydro-vac'd prior to drilling for utility clearance - no
AquaGuard
recovery
10
-2" PVC Riser
i
Silty Clay; red/orang
e; dry to moist; cohesive; plastic; minor sand (FILL)
15
—
------------------------
very stiff; wet WT —14'
20
Sandy Clay; minor silt; reddish orange/tan; saturated;
cohesive; soft to stiff w/ depth
25
silty Clay; w/ minor sand; light brown/tan and white;
mottled; micaceous; saturated
30
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
35
Clay w/ minor silt; light brown and olive green; cohesive;
—
plastic; wet (SAPROLITE)
------------------------
40
increase silt; cohesive; low plastic
45
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-29D
PROJECT NO: 1026.17
STARTED: 9/13/19 COMPLETED: 9/14/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530058.8 EASTING: 1400256.91
DRILLING METHOD: Sonic
G.S. ELEV: 579.41 ft M.P. ELEV: 579.04 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 70.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
ii
CONSTRUCTION
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
continued
Silt; minor clay; grey/olive and orange banding; slightly
cohesive; low plastic; very tight (SAPROLITE)
55
---------------------------
I dabase lens; highly weathered; face reduced to clay/silt;
Bentonite Seal
\—tig-ht-------------------J
cont.
60
Sandy Silt; light brown/tan and white; non -cohesive; fine to
medium grained sand (SAPROLITE)
-Filter Sand Pack
65
-2" Well Screen
Diabase; dark grey; fine; slightly weathered at
SAP/Bedrock contact; mechanically induced frx; no
staining
70
End of Boring at 70.0'
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-29S
PROJECT NO: 1026.17
STARTED: 9/16/19 COMPLETED: 9/16/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 530052.25 EASTING: 1400259.12
DRILLING METHOD: Sonic
G.S. ELEV: 579.53 ft M.P. ELEV: 579.26 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 12 ft TOC TOTAL DEPTH: 41.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
2
>
L)
2
0
LD
ii
WELL
CONSTRUCTION
5
hydro-vac'd prior to drilling for utility clearance - no
AquaGuard
recovery
10
-2" PVC Riser
i
Silty Clay; red/orange; dry to moist; cohesive; plastic;
minor sand (FILL)
15
—
— — — — — — — — — — — — — — — — — — — — — — — —
very stiff; wet WT -14'
20
Sandy Clay; minor silt; reddish orange/tan; saturated;
cohesive; soft to stiff w/ depth
25
silty Clay; w/ minor sand; light brown/tan and white;
mottled; micaceous; saturated
�- - Bentonite Seal
30
:.
Sandy Silt; minor clay; light brown/tan and white; mottled;
saturated; fine to medium grained sand (SAPROLITE)
35
-Filter Sand Pack
-2" Well Screen (pre -pack)
Clay w/ minor silt; light brown and olive green; cohesive;
plastic; wet (SAPROLITE)-------------
40
increase silt; cohesive; low plastic
End of Boring at 41.0'
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: GWA-30D
PROJECT NO: 1026.17
STARTED: 8/26/19 COMPLETED: 8/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529008.49 EASTING: 1399540.14
DRILLING METHOD: Sonic
G.S. ELEV: 593.51 ft M.P. ELEV: 596.34 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 63.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
w
o
U
=
Q O
�
DESCRIPTION
W
J
2
(n
>
L)
W
2
0
LD
ii
WELL
CONSTRUCTION
Silty Clay; red -orange; cohesive; low plasticity; fine grained
sand
5
—
Clayey Silt; orange/tan; cohesive; medium plastictity; moist
------------------------
° �—-AquaGuard
°
10
gray/tan; wet
-2" PVC Riser
Sandy Silt; minor clay; tan/white and brown; mottled; low
plasticity; fine grained sand (SAPROLITE)
15
Silt w/ clay; reddish brown w/ few layers of black/brown;
20
cohvesive; medium plastic
—
— — — — — — — — — — — — — — — — — — — — — — — —
minor coarse sand; poorly graded
°
25
—
------------------------
minor crossbedding (layers); color variation throughout
30
Sandy Silt; minor clay; tan/white and brown; mottled; low
plasticity; fine grained sand (SAPROLITE)
35
Silt w/ clay; dark tan/brown; cohesive; tight; low to med.
Plasticity; wet
40
45
Silt w/ sand; some clay; dark gray/olive green; fine grained
sand; wet
Sandy Silt; minor clay; tan/white and brown; mottled; low
plasticity; fine grained sand (SAPROLITE)
- BentoniteSeal
SynTerra CLIENT: Duke Energy
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-30D
PROJECT NO: 1026.17
STARTED: 8/26/19 COMPLETED: 8/28/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529008.49 EASTING: 1399540.14
DRILLING METHOD: Sonic
G.S. ELEV: 593.51 ft M.P. ELEV: 596.34 ft
BOREHOLE DIAMETER: 7,6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 63.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
IL
O
W
J
CL
>
2
0
w
Q
DESCRIPTION
2
L)
LD
WELL
o
�
ii
CONSTRUCTION
No recovery 50'-55'
55
Diortite; black and white/gray; weak; instensely
Y
weathered; coarse grained (PWR)
-Filter Sand Pack
Diabase; dark gray; fine rained; weak; slightly weathere
-2" Well Screen (Pre -pack)
60
1
Diorite; black and white/gray; strong; massive; coarse
grained
End of Boring at 63.0'
65
70
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: GWA-30S
PROJECT NO: 1026.17
STARTED: 8/28/19 COMPLETED: 8/29/19
DRILLING COMPANY: Cascade Drilling
NORTHING: 529001.69 EASTING: 1399546.63
DRILLING METHOD: Sonic
G.S. ELEV: 593.36 ft M.P. ELEV: 596.14 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: M. Fenn CHECKED BY: A. Lipsky
2
U
=
O
W
J
2
>
2
0
w
Q
DESCRIPTION
L)
LD
WELL
o
�
(n
W
ii
CONSTRUCTION
Silty Clay; red -orange; cohesive; low plasticity; fine grained
sand
5
—
Clayey Silt; orange/tan; cohesive; medium plastictity; moist
------------------------
° �—-AquaGuard
°
10
gray/tan; wet
-2" PVC Riser
Sandy Silt; minor clay; tan/white and brown; mottled; low
plasticity; fine grained sand (SAPROLITE)
15
-Bentonite Seal
Silt w/ clay; reddish brown w/ few layers of black/brown;
cohvesive; medium plastic
20
minor coarse sand; poorly graded
-Filter Sand Pack
:; :;,.
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
-2" Well Screen (Pre pack)
minor crossbedding (layers); color variation throughout
30
End of Boring at 30.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-1 Q
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 8/21/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 53.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
O
2
0
ii
WELL
CONSTRUCTION
Clay w/ silt; yellow -red; dry; non -cohesive; loose
5.24
Ash (sandy silt); light gray; dry; non -cohesive; fine to
—
coarse;
------------------------
4.64
coal fragments present; clinkers present
5.35
—
interbedded fly and bottom ash;
— — — — — — — — — — — — — — — — — — — — — — — —
10
4.78
15
interbedded fly and bottom ash
4.87
6.08
No recovery 20'-25'
25
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.33
saturated
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
6.75
35
No recovery 30'-45'
40
45
6.71
Clay; gray -tan; saturated; cohesive; stiff; organics/roots @
45'
6.13
�� CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: SB-1 Q
PROJECT NO: 1026.17
STARTED: 8/21/19 COMPLETED: 8/21/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 53.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
W
J
>
2
0
w
IL Q O
DESCRIPTION
2
WELL
o
�
ii
CONSTRUCTION
very stiff; fat clay
End of boring at 53.0'
55
60
65
70
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 2 OF 2

PROJECT: DEC Allen
WELL / BORING NO: SB-11
PROJECT NO: 1026.17
STARTED: 8/22/19 COMPLETED: 8/22/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
CL
O
2
0
ii
WELL
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive (FILL)
3.38
Ash (sandy Silt); light gray -yellow; dry; coal fragments (3-5
cm)
1.79
sandy; dark gray; dry; coarse; coal fragments
5
3.67
Interbedded Fly and Bottom Ash; dry; thin layers
Ash (gravelly sand); yellow -brown; dry- non -cohesive; large
coal fragments (>5 cm)
3.81
10
.
Ash (sandy silt); light to dark gray; dry; non -cohesive; coal
fragments; interbedded fly and bottom ash
4.03
15
dark gray; fly ash decrease w/ depth
20
4.65
5.51
moist @ 19'; mineralization present w/ pyrite nodules @
19'
slight yellow -gray tint @ 20'; saturated @21'
25
Clay; yellowiish-red; saturated; stiff; cohesive; organic
5.44
matter/roots; cobble - well rounded; micaceous
(muscovite)
5.85
30
End of boring at 30.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-1 2
PROJECT NO: 1026.17
STARTED: 8/22/19 COMPLETED: 8/22/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 23.0 ft BGS
NOTES: bgs: below ground surface
I LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
IL
O
W
J
O
2
0
w
Q
DESCRIPTION
WELL
o
�
ii
CONSTRUCTION
Clay w/ silt; red; dry; non -cohesive; loose
3.72
Ash (sandy silt); light gray -yellow; grade in yellow w/ depth;
large clinkers @ 3'
—
------------------------
3.93
yellow
wnf� =bro; mix and bottom ash — — — — — —
(silty sand); dry; coal fragments
3.75
10
—
orange -brown stained @ 9'
------------------------
—
Bottom Ash (sandy silt); dark gray; dry; non -cohesive
— — — — — — — — — — — — — — — — — — — — — — — —
15
Fly Ash (silt); light gray; dry; somewhat cohesive
5.18
—
------------------------
interbedded Fly and Bottom Ash; coal fragments
throughout
20
Silt; yellow -red; micaceous; dry; cobbles - well rounded,
poor sort;
Clay w/ silt; tan; moist; cohesive; micaceous
25
End of boring at 25.0'
30
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-13
PROJECT NO: 1026.17
STARTED: 8/23/19 COMPLETED: 8/23/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
IL
O
W
J
>
2
0
w
Q
DESCRIPTION
2
WELL
o
�
ii
CONSTRUCTION
Clay w/ silt; red -orange; non -cohesive; moist; FILL
Ash; (sandy silt); light gray; moist; non -cohesive; coal
4.88
fra ments;
4.99
yellow tint @ 1.5; light gray @ 3'; yellow -orange tint & coal
fragments w/ pyrite minerlization
5.68
5
—
Bottom AshyelIgw:qray; coal franc ments_�3cmn) — — —
Fly Ash (silty); light gray; fine; less coal fragments;
4.77
—
Bottom_AshfsandyLyellow:qray=coal franc ments — —
Fly Ash (silty); light gray; fine; little to no coal
4.12
10
—
------------------------
---------------------------
Bottom Ash (sandy); yellow -gray; coal fragments
Fly Ash (silty); light gray; fine; little to no coal
5.35
15
—
------------------------
Bottom Ash (sandy); yellow -gray; moist @18'; coal
---------------------------
fragments
Fly Ash (silty); light gray; fine; little to no coal; saturated @
5.07
19,
20
—
------------------------
Bottom Ash (sandy); yellow -gray; moist; coal fragments
—
Fly Ash (silty); light gray; fine; little to no coal
------------------------
—
saturated
---------------------
25
Bottom Ash (sandy); yellow -gray; saturated; coal
5.11
fragments; clinkers @ 25'-26' (red/yellow/purple)
6.03
Clay w/ sand; yellow -red; saturated; cohesive; stiff;
5.89
structured
30
End of boring at 30.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-14
PROJECT NO: 1026.17
STARTED: 8/23/19 COMPLETED: 8/23/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 40.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
IL
O
W
J O
2
0
w
Q
DESCRIPTION
WELL
o
�
ii
CONSTRUCTION
Clay; red -orange; dry; cohesive; low plastic; minor sand
(FILL)4.10
Ash; light gray; dry; sandy/silty; fly and bottom ash; coal
—
fr292ents-----------------
4.07
3.82
5
yellow -gray; increase sand; coal fragments prevelant
3.97
3.53
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.71
10
—
ellow-orange bandinig 9_sandy/si!ty-Lbottom ash)—
No recovery 10'-13'
4.06
—
fewcoalfnagments— — — — — — — — — — — — —
15
I�htgraL costlyfllLash-----------
3.62
mix fly and bottom ash
20JIM-dark
—
gray; sandy; mostly bottom ash
— — — — — — — — — — — — — — — — — — — — — — — —
4.07
Dark gray -yellow; coarse; fly and bottom ash co -mingled
3.58
very coarse
3.85
mix fly and bottom ash; moist
3.91
30
.
Sandy Clay; red -brown; micaecous; saturated
Silt; yellow -red; saturated; gravel and cobble (5-7 cm), well
rounded
35
Silt; brown -white mottle; saturated; micaceous - muscovite
(SAPROLITE)
40
End of boring at 40.0'
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-15
PROJECT NO: 1026.17
STARTED: 8/23/19 COMPLETED: 8/23/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
IL
O
W
J
O
2
0
w
Q
DESCRIPTION
WELL
o
�
ii
CONSTRUCTION
Sandy Clay; w/ silt; red -orange; dry; non -cohesive
3.72
Ash; yellow -gray; gravel (-15%); bottom ash w/ clinkers
3.64
5
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.73
—
Bottom Ash; light gray; dry; silty gravel; fine to coarse sand
------------------------
3.62
yellowish gray; fine to medium sand
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.74
10
Dark gray; siltysand/gravel----------
Bottom Ash; dark gray; dry; silt/gravel w/ fine to coarse
sand; some fly ash
3.71
15
..
cont.
—
------------------------
Ash; interbedded fly and bottom ash; dry
silt/clay/gravel/sand
—
— — — — — — — — — — — — — — — — — — —
4.71
20
—
Bottom Ash=Lig grave moist silt/sand w/gravel — —
Bottom Ash; dark gray; wet; silt/gravel and Sand
25
—
------------------------
Flash; dark graE, eA------------
5.69
Bottom ash; dark gray; gravel/clay and fine to coarse sand;
coal fragments
5.96
Silty Clay; tan -brown; wet; cohesive; non -plastic; native
30
End of Boring at 30.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-16
PROJECT NO: 1026.17
STARTED: 8/23/19 COMPLETED: 8/24/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 35.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
2
>
2
0
ii
WELL
CONSTRUCTION
Clay; red -orange; dry; cohesive; plastic
4.46
—
Ash (Sandy Silt); light gray; dry; non -cohesive; mix
�fly/bottom ash---------------- J
dark gray
4.57
5
interbedded fly and bottom ash; light and dark gray
10
—
—
------------------------
coal franc ments
----------------
4.35
4.52
thin yellow/orange banding; clinkers
4.35
Fly ash; light gray; dry; non -cohesive; minor coal
15
fragments; grades to dark gray at 16-- — — — — — — — —
4.35
20
saturated at 23'
4.12
3.86
25
4.05
5.27
Sandy Clay; red/brown mottled; moist to wet; cohesive
4.41
30
—
------------------------
4.21
increase fine to medium sand
35
End of Boring at 35.0'
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-1 7
PROJECT NO: 1026.17
STARTED: 8/26/19 COMPLETED: 8/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
w
o
U
=
IL Q O
�
DESCRIPTION
W
J
2
>
2
0
ii
WELL
CONSTRUCTION
Clay; red -orange; cohesive; plastic; dry; minor sand
3.22
5
Ash; light gray and minor yellow; bottom ash mixed w/ fly
ash; large coal fragments present
3.37
—
— — — — — — — — — — — — — — — — — — — — — — — —
3.57
10
dark gray; fewer coal fragments
---------------------------
__!:lay kens -----------------
3.67
15
3.79
Ash; light gray and minor yellow; fly ash; saturated; few
20
coal pieces
4.24
25
3.97
3.97
Silt w/ clay; reddish brown; non -cohesive; saturated; river
30
cobbles (well rounded)
4.12
Sandy Gravel; white and brown; non -cohesive; saturated;
river cobble well rounded
End of Boring ay30.0'
35
40
45
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: DEC Allen
WELL / BORING NO: SB-1 8
PROJECT NO: 1026.17
STARTED: 8/26/19 COMPLETED: 8/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 70.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
IL
O
W
J >
2
0
w
Q
DESCRIPTION 2
WELL
o
�
ii
CONSTRUCTION
Clay w/ minor silt; red -orange; dry; cohesive
5.41
Ash; Light gray; interbedded fly and bottom ash;
5
non -cohesive; coal fragments throughout
5.21
—
— — — — — — — — — — — — — — — — — — — — — — — —
4.57
10
grades to dark gray
—
------------------------
5.27
_
rades tolight_gray--------------
4.52
4.50
15
coarser, sandy; clinkers (burnt coal)
20
—
— — — — — — — — — — — — — — — — — — — — — — — —
grade to dark gray; cohesive; moist to wet
4.52
—
Ash_lig_hU[2y; fly qsh=m_oist----------
5.03
4.35
25
Ash; dark gray; coarse grained; wet; semi cohesive
6.06
30
—
— — — — — — — — — — — — — — — — — — — — — — — —
35
very coarse grained @ 35', continue coal fragments
5•99
40
—
— — — — — — — — — — — — — — — — — — — — — — — —
45
No recovery; soft
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: DEC Allen
WELL / BORING NO: SB-1 8
PROJECT NO: 1026.17
STARTED: 8/26/19 COMPLETED: 8/26/19
DRILLING COMPANY: Cascade Drilling
NORTHING: EASTING:
DRILLING METHOD: Sonic
G.S. ELEV: ft M.P. ELEV: ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 70.0 ft BGS
NOTES: bgs: below ground surface
LOGGED BY: L. Drago CHECKED BY: M. Fenn
2
U
=
W
J
>
2
0
w
IL Q O
DESCRIPTION
2
WELL
o
�
ii
CONSTRUCTION
55
cont.
6.31
60
65
Silt w/ Clay; white -tan w/ red and orange foliation;
micaeceous; minor sand
70
End of Boring at 70.0'
75
80
85
90
95
CLIENT: Duke Energy
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belmont, North Carolina
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2