Belews Creek-SOIL BTV Tech Memo

TECHNICAL MEMORANDUM
Date: August 4, 2017 File: 1.026.20
To: Melonie Martin (Duke Energy)
Cc: Kathy Webb (SynTerra)
From: Craig Eady (SynTerra)
Subject: Background Threshold Values for Soil
Belews Creek Steam Station —Belews Creek, NC
An updated background soil dataset was provided to the North Carolina Department of
Environmental Quality (NCDEQ) for Belews Creek Steam Station (Belews Creek) on May 26,
2017. Additionally, the revised Statistical Methods for Developing Reference Background
Concentrations for Groundwater and Soil at Coal Ash Facilities (statistical methods document) (HDR
Engineering, Inc. and SynTerra Corporation, May 2017) was provided to NCDEQ. On July 7, 2017,
NCDEQ provided a response letter (Zimmerman to Draovitch, July 7, 2017) for each Duke
Energy coal ash facility that identified soil and groundwater data appropriate for inclusion in
the statistical analysis to determine background threshold values (BTVs) for both media. As
outlined in the NCDEQ July 7, 2017 letter, Duke Energy is required to provide BTVs for both
media within 30 days from receipt of the NCDEQ letter for facilities submitting Comprehensive
Site Assessments (CSAs) by October 31, 2017, and 60 days from receipt of the NCDEQ letter for
all other facilities. The background threshold values for groundwater are provided under
separate cover.
The revised background soil datasets provided to NCDEQ on May 26, 2017 incorporated
comments provided in a letter by NCDEQ (Zimmerman to Draovitch, April 28, 2017). NCDEQ
requested that Duke Energy collect a minimum of 10, rather than the previously planned eight,
valid background samples prior to the determination of BTVs for each constituent. For soil
datasets with less than 10 valid samples available for BTV determination, no formal upper
tolerance limit (UTL) statistics will be run and the provisional BTVs (PBTVs) for a constituent
will be computed to be either:
47 The highest value, or
0 If the highest value is above an order of magnitude greater than the geometric mean
of all values, then the highest value should be considered an outlier and removed
from further use and the PBTV is computed to be the second highest value.
P:\Duke Energy Carolinas\ Statistics_CAMA\ Background Determinations for NCDEQ July 7 2017\BTV TECH
MEMO\Belews Creek\ Soil\ Belews - SOIL BTV MEMO_FINAL.docx

Background Threshold Values- Soil August 4, 2017
Belews Creek Steam Station Page 2 of 3
Soil samples meeting the following criteria are considered valid for use in statistical
determinations of BTVs:
47 Sample was collected from a location that is not impacted by coal combustion
residuals or coal associated materials;
4? Sample was collected from a depth not less than 0.5 feet below ground surface;
,67 Sample was collected from a location that is not impacted by other potential
anthropogenic sources of constituents; and
47 Sample is collected from the unsaturated zone, greater than one foot (ft) above the
seasonal high water table elevation.
Additional site-specific requirements related to the Belews Creek background soil dataset as
outlined in the July 7, 2017 NCDEQ letter have been incorporated into the soil background
dataset.
This technical memorandum summarizes the revised background soil datasets and statistically
determined BTVs. Statistical determinations of BTVs were performed in accordance with the
revised Statistical Methods for Developing Reference Background Concentrations for Groundwater and
Soil at Coal Ash Facilities (statistical methods document) (HDR Engineering, Inc. and SynTerra
Corporation, May 2017).
SOIL BACKGROUND DATA
Soil samples were collected from soil borings conducted at the Belews Creek Plant during the
2015 Comprehensive Site Assessment (CSA). Background soil sample locations are presented in
Figure 1. The background dataset provided to NCDEQ on May 26, 2017 included pooled soil
samples collected from multiple depth intervals. Only samples collected from background
locations at depth intervals greater than one ft above the seasonal high water table were
included in the dataset. The background soil dataset has been further revised from the May 26,
2017 submittal based on input from NCDEQ in the July 7, 2017 letter. NCDEQ concurred with
all soil samples presented in the May 26, 2017 submittal were appropriate for use in
determining BTVs.
The background soil dataset included laboratory reporting limits for antimony, selenium and
thallium above the NCDEQ IHSB Preliminary Soil Remediation Goals (PSRG) Protection of
Groundwater values (dated October 2016). NCDEQ requested the values for antimony,
selenium, and thallium be reported below the PSRG Protection of Groundwater values.
Prior to statistical determinations, the background soil dataset was re -screened for outliers to
adjust for the removal of samples from the dataset. A revised background soil dataset
identifying valid samples and statistical outliers is presented as Table 1. Currently, the
background dataset for all constituents except antimony, selenium, and thallium satisfy the
minimum requirement of 10 samples to use formal UTL statistics to derive BTVs. The selenium
dataset is comprised of three valid samples. Therefore, the PBTV for selenium was determined
P: \ Duke Energy Carolinas \ Statistics _CAMA \ Background Determinations for NCDEQ July 7 2017 \BTV
TECH MEMO\Belews Creek\Soil \Belews - SOIL BTV MEMO_FINAL.docx

Background Threshold Values- Soil
Belews Creek Steam Station
August 4, 2017
Page 3 of 3
to be either the maximum value, or, if the maximum value was above an order of magnitude
greater than the geometric mean of all values, the second highest value. Background datasets
for antimony and thallium contain zero valid samples. BTVs for constituents in site soil are
presented in Table 2.
Additional soil samples were collected on July 26, 2017 to satisfy the minimum number of soil
samples and to provide values for antimony, selenium and thallium below the PSRG Protection
of Groundwater values. The dataset will be screened for outliers once the additional samples
are included in the dataset. The analysis of the additional background soil samples are not
complete at the time of this technical memo. Therefore, as previously stated, PBTVs for soil
constituents were computed and are provided in Table 2. Boring logs associated with the
additional soil samples are included in Attachment 1. Additional analytical data will be
submitted to the NCDEQ Regional Office if received and processed in sufficient time for review
prior to the preparation of the updated CSA report.
LIST OF FIGURES
Figure 1- Background Soil Sample Location Map
LIST OF TABLES
Table 1 - Background Unsaturated Soil Data Summary
Table 2 - Background Threshold Values for Soil
LIST OF ATTACHMENTS
Attachment 1- Soil Boring Logs (Additional Samples)
P: \ Duke Energy Carolinas \ Statistics _CAMA \ Background Determinations for NCDEQ July 7 2017 \BTV
TECH MEMO\Belews Creek\Soil \Belews - SOIL BTV MEMO_FINAL.docx

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TABLE 1
UNSATURATED BACKGROUND SOIL DATA SUMMARY
BELEWS CREEK STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC
Prepared by: JHG Checked by: COE
Notes:
54 Indicates values omitted from dataset.
--- Not applicable; non -detect concentration greater than PSRG Protection of Groundwater; value omitted
Indicates data removed /identified as an outlier
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
j- - Estimated concentration, biased low.
j+ - Estimated concentration, biased high.
mg/kg - milligrams per kilogram
NA - Not analyzed
NE - Not established
PSRG Protection of Groundwater - NCDEQ IHSB Preliminary Soil Remediation Soil Remediation Goals Table - October 2016
S.U. - Standard Units
U = Results not detected at concentrations which equal the laboratory's method reporting limit.
P:\Duke Energy Carolinas\Statistics_CAMA\Background Determinations for NCDEQ July 7 2017\BTV TECH MEMO\Belews Creek\Soil\Tables\TABLE 1- Belews Creek BG Soils_ Highlighted Outliers_TM.xlsx Page 1 of 1
Analytical Parameter
pH
Aluminum Antimony Arsenic
Barium
Beryllium Boron Cadmium
Calcium
Chloride Chromium Cobalt Copper
Iron
Lead
Magnesium
Manganese
Mercury
Molybdenum
Nickel
N rate (as N)
Potassium Selenium Sodium Strontium Sulfate Thallium Vanadium
Zinc
Reporting Units
S.U.
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
PSRG Protection of Groundwater
NE
NE
0.9
S.8
S80
63
4S
3
NE
NE
360000
0.9
700
1 ISO
270
NE
6S
1
NE
130
NE
NE
2.1
NE
NE
NE
0.28
6
1200
Sample ID
Sample
Collection Date
Analytical Results
3G -1D (1-2)
3/26/2015
4.8 j
17400
---
34.6
41.5
15.5 U
0.89
0.37 U
131j
305 U
28.7
1.7 j
11.9
38100
21.1
249
57.6
0.046
3.1 U
1.3j
30.5 Uj
348
---
311 U
1.9 j
305 U
---
54.9
13.2
BG -1D (11)
3/27/2015
5.7 j
5490
---
10.9
26.8
12.2 j
0.68
0.47 U
195 U
396 U
4.7
28.6 j-
4.5
12200
77:3-}-
677
1010
0.0063 j
8.9
12
39.6 Uj
540
---
390 U
3.9 U
396 U
---
14.2
28.1
BG -1D (21)
3/27/2015
5.4 j
6210 j+
---
7.5
50
13.2 j
0.88
0.47 U
197 U
400 U
2.3
6.8
3.5
12400 j+
25.9
836
257 j+
0.01 U
3.9 U
2.1
40 Uj
567
2.2 j
393 U
3.9 U
400 U
---
16
31.6
BG -1D (31)
3/27/2015
5.6 j
12700
---
30.7
42.3
38.6
2-.8
0.42 U
174 U
358 U
17.1
37.9
9.8
40400
17.1
3300
871
0.01 U
3.5 U
3-2.8
35.8 Uj
876
2.9 j
347 U
3.5 U
358 U
---
50.9
85.4
3G -2D (1-2)
3/23/2015
5.5j
13800
---
3.3j
25.1
18.9 U
0.32 j
0.45 U
428
363 U
8.5
---
7.6
24100
18.7
678
53.1
0.064
3.8 U
1.9 U
36.3 Uj
199 j
---
378 U
3.8 U
363 U
---
46.6
10.5
BG -2D (10-12)
3/24/2015
5 j
9670
---
2.7 j
70.7
34.3 j
0.86
0.42 U
173 Uj
352 U
5.3
5.5
8.1
32300
21.7
1060
245
0.015
3.5 Uj
1.7 U
35.2 Uj
183 j
3 j
346 U
3.5 Uj
352 U
---
105
14.2
BG -2D (20-22)
3/24/2015
5.1j
6680
---
3.7 U
88.9
18.5 U
0.29 j
0.45 U
185 Uj
367 U
1.9 Uj
5
4.8
9570
11.3
1090
450
0.01 U
3.7 Uj
1.9 U
36.7 Uj
949
---
371 U
3.7 Uj
367 U
---
20
39.1
BG -2D (30-32)
3/24/2015
5.2 j
7530
---
4 U
91.9
20.1 U
0.33 j
0.48 U
201 Uj
403 U
2 Uj
5
1.8 j
13000
6.6
1500
680
0.01 U
4 Uj
2 U
40.3 Uj
1240
---
402 U
4 Uj
403 U
---
27
20.1
3G -3S (1-2)
5/12/2015
5.4 j
14800
---
---
29.9
14 j
0.37
0.77 U
158 j
329 U
15.9
---
12.9
27800
26.6
238
39.6
0.031
3.2 U
4.1
32.9 Uj
343
---
320 U
3.2 U
329 U
---
60
8.4
BG -3S (10-12)
5/12/2015
4.9 j
10000
---
---
32.3
20.9
0.75
0.91 U
189 U
362 U
21.5
15.6
14.3
44200
6.2 j
647
513
0.0095 j
3.8 U
4.5
36.2 Uj
379 U
---
379 U
3.8 U
362 U
---
4-41
21.2
BG -3S (20-22)
5/12/2015
5 j
9280
---
---
68.4
16.6
0.76
0.73 U
152 U
308 U
15.4
8.1
28.5
36800
14.4
2620
216
0.0097 U
3 U
9.8
30.8 Uj
2360
---
304 U
3 U
308 U
---
55.3
48.5
GWA-3D (34-35.5)
5/4/2015
7j
7610
---
---
108
19.3 U
0.97
0.93 U
1050
366 U
1.1j
---
2
9110
6.4j
2080
460
0.012 U
3.9 Uj
1.1 j
36.6 Uj
1440
---
386 Uj
31.4
366 U
---
18.4
29.6
GWA 4S (45-47)
3/5/2015
6.4j
4830
---
2.8 U
79.5
5
0.52
0.33 U
599
284 U
1j+
2.2 j
2.8
7760
15.6
1320
383
0.01 U
0.56 U
1.1
28.4 Uj
1060
---
49.2j
4.3
284 U
---
9.4
20.3
GWA-12D (10-12)
4/15/2015
5.6j
4320
---
---
26.6
15.4 U
0.31 U
0.74 U
154 Uj
315 U
1.5 Uj
6.5
0.96 j
912
13.2
287
296
0.0097 Uj
3.1 U
1.5 Uj
31.5 Uj
313
---
308 Uj
3.1 Uj
315 U
---
---
8.5
GWA-12D (15-17)
4/15/2015
5.4 j
14300
---
5.6 U
98.6
13.9 U
0.39
0.67 U
139 Uj
281 U
1.4 Uj
2.9 j
1.8
7740
19.9
5180
187
0.0092 Uj
2.8 U
1.4 Uj
28.1 Uj
4230
---
279 Uj
2.8 Uj
281 U
---
5.6 U
64.7
GWA-12D (20-22)
4/15/2015
5.3j
11900
---
---
90.7
14.5 U
0.43
0.69 U
145 Uj
285 U
0.97j
3.5j
9.1
7870
14.7
3230
135
0.009 Uj
2.9 U
0.79 j
28.5 Uj
2830
---
289 Uj
2.9 Uj
285 U
---
8.2
43.6
GWA-12D (25-27)
4/15/2015
NA
12200
---
---
82.5
19.6 U
0.59
0.94 U
196 Uj
402 U
4.7
4.5 j
11.3
9790
12.8
3070
247
0.013 Uj
3.9 U
1.11
40.2 Uj
3310
---
393 Uj
3.9 Uj
402 U
---
10.6
43.6
Prepared by: JHG Checked by: COE
Notes:
54 Indicates values omitted from dataset.
--- Not applicable; non -detect concentration greater than PSRG Protection of Groundwater; value omitted
Indicates data removed /identified as an outlier
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
j- - Estimated concentration, biased low.
j+ - Estimated concentration, biased high.
mg/kg - milligrams per kilogram
NA - Not analyzed
NE - Not established
PSRG Protection of Groundwater - NCDEQ IHSB Preliminary Soil Remediation Soil Remediation Goals Table - October 2016
S.U. - Standard Units
U = Results not detected at concentrations which equal the laboratory's method reporting limit.
P:\Duke Energy Carolinas\Statistics_CAMA\Background Determinations for NCDEQ July 7 2017\BTV TECH MEMO\Belews Creek\Soil\Tables\TABLE 1- Belews Creek BG Soils_ Highlighted Outliers_TM.xlsx Page 1 of 1

TABLE 2
BACKGROUND THRESHOLD VALUES FOR SOIL
BELEWS CREEK STEAM STATION
DUKE ENERGY CAROLINAS. LLC. BELEWS CREEK. NC
Parameter
Reporting Unit
PSRG Protection of
Groundwater
BTV
pH*
S. U.
NE
4.2 - 6.5
Aluminum
mg/kg
NE
19624
Antimony
mg/kg
0.9
NA
Arsenic
mg/kg
5.8
7.9
Barium
mg/kg
580
134
Beryllium
mg/kg
63
20.1
Boron
mg/kg
45
1.18
Cadmium
mg/kg
3
ND
Calcium
mg/kg
NE
201
Chloride
mg/kg
NE
ND
Chromium
mg/kg
360,000
21.5
Cobalt
mg/kg
0.9
37.9
Copper
mg/kg
700
18
Iron
mg/kg
150
87052
Lead
mg/kg
270
31.9
Magnesium
mg/kg
NE
7695
Manganese
mg/kg
65
1056
Mercury
mg/kg
1
0.015
Molybdenum
mg/kg
NE
ND
Nickel
mg/kg
130
4.5
Nitrate (as N)
mg/kg
NE
ND
Potassium
mg/kg
NE
6001
Selenium
mg/kg
2.1
4t
Sodium
mg/kg
NE
ND
Strontium
mg/kg
NE
4
Sulfate
mg/kg
250
ND
Thallium
mg/kg
0.28
NA
Vanadium
mg/kg
6
103
Zinc
mg/kg
1200
83.8
Prepared by: JHG Checked by: CDE / LWD
NOTES:
S.U. - Standard Unit
mg/kg - milligrams per kilogram
* - Upper and lower threshold values calculated for parameter
t - Indicates value is provisional; dataset contains less than 10 valid samples
ND - Not Detected
NE - Not Established
NA - Not applicable; dataset contains zero valid samples
P:\Duke Energy Carolinas\Statistics_CAMA\Background Determinations for NCDEQ July 7 2017\BTV TECH MEMO\Belews Creek\Soil
\Tables\TABLE 2 - Belews Creek Soil BTVs Page 1 of 1

Background Threshold Values- Soil
Belews Creek Steam Station
August 4, 2017
Page 4 of 1
ATTACHMENT 1
SOIL BORING LOGS (ADDITIONAL SAMPLES)
P:\Duke Energy Carolinas\ Statistics_CAMA\ Background Determinations for NCDEQ July 72017\BTV TECH
MEMO \Belews Creek \ Soil \ Belews - SOIL BTV MEMO_FINAL.docx

PROJECT: Belews Creek
WELL / BORING NO: BGSBA
PROJECT NO: 1026.20
STARTED: 7/26/17 COMPLETED: 7/26/17
DRILLING COMPANY: Geologic Exploration
NORTHING: 929482.39 EASTING: 1686159.06
DRILLING METHOD: GeoProbe
G.S. ELEV: ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 3 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 22,0 ft BGS
NOTES:
LOGGED BY: A. Albert CHECKED BY: A. Lefitz
Lu
O
U
_
Q O
��
�
DESCRIPTION
w
CL
2
<
O^
0 o
uj
U)
0 z
OJ D
m0
0 E
d Q
WELL
CONSTRUCTION
CL
Stiff, dark red orange silty clay, non-cohesive,
non-plastic.
5
CL
Stiff, dark red orange silty clay mottled with white tan
fine grained sand and some organic matter.
Non-cohesive, non-plastic.
10
SC
SM
Mostly fine-grained sand with red orange silty clay.
15
SC
SM
Mostly fine-grained sand with red orange silty clay and
intervals of white quartz partially weathered rock.
0
20—
J.
ML
Dark brown red sandy silt grading to gray as depth
increases, bottom foot is partially weathered rock.
Geo robe refusal at 22 feet below ground surface.
25-
530354045Coordinates
30-
35-
40-
45—
Coordinatesobtained with hand held GPS unit.
CLIENT: Duke Energy Carolinas, LLC
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belews Creek, NC
���ra Greenville, South Carolina 29601
s)mPhone: 864-421-9999 PAGE 1 OF 1

PROJECT: Belews Creek
WELL / BORING NO: BGSB-2
PROJECT NO: 1026.20
STARTED: 7/26/17 COMPLETED: 7/26/17
DRILLING COMPANY: Geologic Exploration
NORTHING: 929513.97 EASTING: 1687460.87
DRILLING METHOD: GeoProbe
G.S. ELEV: ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 3 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 35.0 ft BGS
NOTES:
LOGGED BY: A. Albert CHECKED BY: A. Lefitz
Lu
O
U
_
Q O
��
�
DESCRIPTION
w
CL
2
<
O^
0 o
Uj
U)
0 z
OJ D
m0
0 E
d Q
WELL
CONSTRUCTION
CL
ML
Stiff, red orange, silty clay with fill gravel at top of run.
Non-cohesive, non-plastic.
5
CL
ML
Stiff, red orange, silty clay with fill gravel at top of run
and more sandy layers than above. Clay sand mottling
fine grained sand and some organic matter.
Non-cohesive, non-plastic.
10
SM
Silty, fine-grained sand mottling large sandy interval in
bottom 1.5 feet. Uncosolidated, non-plastic.
15
SM
Silty, fine-grained sand mottling. Uncosolidated,
non-plastic.
20
Silty, fine-grained sand mottling, more fine-grained
SM
sandy layers than above. White, fine sand layer and
sandy bottom of run beginning at 23.6 feet below
ground surface. Uncosolidated, non-plastic.
25
SM
Silty, fine-grained sand mottling, more fine-grained
sandy layers than above and some quartz partially
weathered rock fragments. Uncosolidated, non-plastic.
30
Silty, fine-grained sand mottling, more fine-grained
SM
sandy layers than above and some quartz partially
weathered rock fragments. Dark gray partially
weathered rock at 33.2 feet below ground surface.
Non-cohesive, non-plastic.
35
40-
045Coordinates
45—
Coordinatesobtained with hand held GPS unit.
CLIENT: Duke Energy Carolinas, LLC
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belews Creek, NC
���ra Greenville, South Carolina 29601
s)mPhone: 864-421-9999 PAGE 1 OF 1

PROJECT: Belews Creek
WELL / BORING NO: BGSB-3
PROJECT NO: 1026.20
STARTED: 7/26/17 COMPLETED: 7/26/17
DRILLING COMPANY: Geologic Exploration
NORTHING: 922165.53 EASTING: 1680651.34
DRILLING METHOD: GeoProbe
G.S. ELEV: ft M.P. ELEV: NAft
BOREHOLE DIAMETER: 3 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 25.0 ft BGS
NOTES:
LOGGED BY: A. Albert CHECKED BY: A. Lefitz
Lu
O
U
_
Q O
eJ
�
DESCRIPTION
w
CL
2
<
O^
0 o
Uv
U)
0 z
OJ D
coo
0 E
d Q
WELL
CONSTRUCTION
CL
Stiff, red orange silty clay with organics, non-cohesive,
non-plastic.
5
CL
Stiff, dark red silty clay mottled with white tan fine sand
and some dark brown organic matter. Non-cohesive,
non-plastic.
10
CL
Stiff, dark red silty clay mottled with white tan fine sand
and less dark brown organic matter than above. Slightly
moist, non-cohesive, non-plastic.
15
SC
Fine sand mottled with orange to light red silty clay with
organic lenses.
20
SC
Fine sand mottled with orange to light red silty clay with
organic lenses and some layers of coarse sand with
quartz and mica grains.
25
30-
0354045Coordinates
35-
40-
45—
Coordinatesobtained with hand held GPS unit.
CLIENT: Duke Energy Carolinas, LLC
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belews Creek, NC
���ra Greenville, South Carolina 29601
s)mPhone: 864-421-9999 PAGE 1 OF 1

PROJECT: Belews Creek
WELL / BORING NO: GWASB-12
PROJECT NO: 1026.20
STARTED: 7/26/17 COMPLETED: 7/26/17
DRILLING COMPANY: Geologic Exploration
NORTHING: 922340.48 EASTING: 1683347.65
DRILLING METHOD: GeoProbe
G.S. ELEV: ft M.P. ELEV: NA ft
BOREHOLE DIAMETER: 3 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 30.0 ft BGS
NOTES:
LOGGED BY: A. Albert CHECKED BY: A. Lefitz
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DESCRIPTION
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CL
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WELL
CONSTRUCTION
CL
Stiff, dark brown organic matter and light brown silty
sandy clay, slightly cohesive.
5
CL
Stiff, dark red brown organic matter, silty clay
transitioning to light tan, fine sand, mottling sand and
clay.
10
SC
Fine sand mottled with red orange clay and dark brown
organic matter, unconsolidated material with little
cohesion.
15
SC
Fine sand mottled with red orange clay and dark brown
organic matter, unconsolidated material with little
cohesion.
20
Increase in white tan fine sand. Bottom foot dark brown
SM
sandy silt with layer of coarse-grained sand. Mica,
quartz ends with orange silty clay, slight consolidation.
Thick layers of white, fine sand towards bottom foot of
run with quartz and mica grains.
25
Increase in white tan fine sand. Bottom foot dark brown
SM
sandy silt with layer of coarse-grained sand. Mica,
quartz ends with orange silty clay, slight consolidation.
Thick layers of white, fine sand towards bottom foot of
run with quartz and mica grains.
30-
0354045Coordinates
35-
40-
45—
Coordinatesobtained with hand held GPS unit.
CLIENT: Duke Energy Carolinas, LLC
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Belews Creek, NC
���ra Greenville, South Carolina 29601
s)mPhone: 864-421-9999 PAGE 1 OF 1