SUT_1971_Basin_Analytical_Sampling_Rev0_20191113

410 S. Wilmington Street.
Raleigh, NC 27601
DUKE
ENERGY®
November 13, 2019
Mr. Steven Lanter
North Carolina Department of Environment Quality
Division of Water Resources
1636 Mail Service Center
Raleigh, NC 27699-1636
Mailing Address
Mail Code NC 15
Raleigh, NC 27601
919-546-7863
Subject: 1971 Ash Basin Closure Soil Sampling Metals Analysis, L.V. Sutton Energy Complex
Dear Mr. Lanter:
In general accordance with the CCR Surface Impoundments Closure Guidelines for Protection of
Groundwater provided by the Division of Water Resources on November 4, 2016, Duke Energy Progress,
LLC. (Duke Energy) has completed removal of CCR from the 1971 ash basin at the L.V. Sutton Energy
Complex. In August 2019, Duke Energy provided to the North Carolina Department of Environmental
Quality (DEQ) the 1971 Basin Closure Certification prepared by Geosyntec Consultants of NC, PC.
The enclosed report titled 1971 Basin Analytical Soil Sampling Results dated October 9, 2019 provides
the results of the ash basin closure sampling from locations above the water table. Samples were
collected to meet the minimum requirement of one location per acre. If you have any questions or
need any clarification regarding the information provided, feel free to contact me at
[e-mail] or at 919-546-7863 at your convenience.
Respectfully submi ed,
Jo Toepfer, PE
Lead Engineer, Duke Energy EHS CCP
Waste & Groundwater Programs
enc: 1971 Basin Analytical Soil Sampling Results, dated October 9, 2019, prepared by Geosyntec Consultants of NC, PC.
cc/enc: Mr. Larry Frost, P.E. — DEQ Solid Waste Section
Mr. Victor Damasceno, P.E. & Mr. James McNash, P.E. — Geosyntec
Mr. Perry Waldrep— SynTerra Corp.
Mr. Geoff Kegley — DEQ Wilmington Regional Office
Mr. Tim Russell, Mr. Ricky Stroupe & Mr. Ed Sullivan — Duke Energy
Ms. Melonie Martin — Duke Energy

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Geosynte& 1300 South Mint Street, Suite 30
Charlotte, North Carolina 28203
PH 704.227.0840
COn d} an } Ls g engineering license C-3500
geology license C-295
www.geosyntec.com
Geosyntec Consultants of NC, P.C.
9 October 2019
Mr. Thomas A. Sylvester, P.E.
Project Manager II
CCP Engineering — Carolinas East
Duke Energy Progress, LLC
801 Steam Plant Road
Wilmington, NC 28401
Subject: 1971 Basin Analytical Soil Sampling Results
L.V. Sutton Energy Complex
Sutton Steam Plant Road
Wilmington, North Carolina
Dear Mr. Sylvester:
Geosyntec Consultants of North Carolina, PC (Geosyntec) prepared this Letter Report (Report) to
document the soil sampling activities within the 1971 Basin footprint at L.V. Sutton Energy
Complex (Sutton), located near Wilmington, North Carolina (NC). Duke Energy Progress, LLC
(Duke Energy) formerly disposed of coal combustion residuals (CCR) within the 1971 Basin.
However, the CCR basins and Lay of the Land Area (LOLA) onsite are being closed through
excavation and removal. Excavated material is placed within the Onsite CCR Landfill located in
the northeast corner of the property. Closure of the 1971 Basin required excavation of CCR
materials beneath the water surface; as such, a hydraulic dredge was utilized to excavate materials
to the design elevations approved by the North Carolina Department of Environmental Quality
(NCDEQ). Duke Energy completed dredge activities in June 2019, and an as -built bathymetric
survey was prepared by McKim and Creed, Inc. to demonstrate that excavation met or exceeded
design elevations, submitted under separate cover. The visual classification and the PLM test
results for the portion of the 1971 Basin above water were submitted as an attachment to the letter
report titled "1971 Basin Closure Certification ", dated 20 August 2019. The purpose of this Report
is to describe the site background, the sampling plan, and present the analytical test laboratory
results for the portion of the 1971 Basin above the basin water elevation.
The 1971 Basin footprint is mostly submerged; however, a limited area in the eastern corner resides
above the typical basin water elevation. This aboveground area was utilized to manage and
maintain dredge equipment during CCR excavation. Geosyntec was retained by Duke Energy to
sample and certify that CCR material was removed from this limited area above the water
GC6473/Sutton 1971Basin Analytical_ Sample _Test_Results RevO
engineers I scientists I innovators

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Mr. Thomas A. Sylvester, P.E.
9 October 2019
Page 2
elevation. Geosyntec collected soil samples for visual classification, polarized light microscopy
(PLM) laboratory evaluation, and analytical testing to demonstrate that CCR was removed from
the 1971 Basin. The visual classification and PLM test results were submitted as a part of "1971
Basin Closure Certification ", dated 20 August 2019. This Report is to document the investigation
of near surface soils within the 1971 Basin above the basin water surface after completion of the
excavation activities. The investigation was conducted consistent with the NCDEQ CCR Surface
Impoundment Closure Guidelines for Protection of Groundwater letter dated 4 November 2016,
provided as Attachment A, and the Duke Energy Excavation Soil Sampling Plan' (Sampling Plan)
provided as Attachment B.
METHODOLOGY AND PLAN
Geosyntec followed the Duke Energy Sampling Plan approved by NCDEQ to sample the
aforementioned above ground areas within the 1971 Basin. The Sampling Plan presents means
and methods (e.g., sampling frequency, sample depths, laboratory requirements) to visually
confirm CCR removal above groundwater elevation within CCR basins at Sutton. Specifically,
the Sampling Plan requires the following:
• visual confirmation on a 100-ft by 100-ft grid that CCR was removed from the area prior
to sample collection;
• soil samples collected at 0 to 0.5 feet below ground surface (ft bgs) and 2.0 to 2.5 ft bgs at
locations on a 100-ft by 100-ft sampling frequency for visual classification and CCR
content by polarized light microscopy (PLM); and
• soil samples collected at several depth intervals (0 to 0.5 ft; 2.0 to 2.5 ft, 7.0 to 7.5 ft; 12.0
to 12.5 ft; and 17.0 to 17.5 ft) above groundwater at one location per acre for Total Metals
and Synthetic Precipitation Leaching Procedure (SPLP) analytical tests.
Geosyntec field located soil sample locations in areas above the basin water elevation within the
1971 Basin on an approximate 100-ft by 100-ft grid using a survey wheel. Each soil sample
location was flagged and labeled with boring numbers 71 B-01 through 71 B-09. A handheld global
positioning system (GPS) unit was utilized to collect coordinates of each boring location, which
are summarized in Table 1 and shown on Figure 1. The area above the basin water elevation was
approximated to be less than two acres; however, the exposed area footprint was irregular. Thus,
Geosyntec selected three boring locations (71B-03, 71B-06, and 71B-09) to collect soil samples
1 Duke Energy, 2018. "Excavation Soil Sampling Plan - L.V. Sutton Energy Complex: 1984 Basin" Revision 2, Waste
& Groundwater Programs, December 2018.
GC6473/Sutton 1971Basin Analytical_ Sample _Test_Results RevO
engineers I scientists I innovators

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Mr. Thomas A. Sylvester, P.E.
9 October 2019
Page 3
for analytical tests. Total Metals and SPLP analytical tests were conducted on soil samples
collected above the groundwater table for the constituents identified in Table 2 of the Sampling
Plan, provided as Attachment B.
2 FIELD ACTIVITIES
Geosyntec mobilized to Sutton during the week of June 17th to collect soil samples at various
locations onsite. Geosyntec representatives delineated and flagged sample locations on 18 June
2019 and Geosyntec inspected the 1971 Basin footprint area above water to confirm that all CCR
was visibly removed. Subsequently, Geosyntec collected soil samples from the 0.0 to 0.5 ft bgs
and 2.0 to 2.5 ft bgs depth intervals at borings 71 B-03, 71 B-06 and 71 B-08 on 19 June 2019 using
a stainless steel hand auger, as the water surface was encountered before the 7.0 to 7.5 ft bgs depth
interval was reached. The hand auger borehole was advanced at each location where analytical
tests were proposed on soil samples to the depth of water and then terminated. The boring was
backfilled with auger cuttings and restored in kind. The stainless steel hand auger was
decontaminated with an Alconox® solution and rinsed with tap and de -ionized water between each
sample interval. Depth to water measurements at each boring location were recorded and are
summarized within Table 1 of this Report After visual classification, soil samples were packaged
within amber, glass soil sample jars, placed within coolers, and iced before a courier service
transported the samples to the Duke Energy Central Laboratory at McGuire Nuclear Complex for
analysis. Coordinates for each boring location for Total Metals and SPLP Analytical Tests within
the 1971 Basin footprint are depicted on Figure 1 and summarized in Table 1 of this Report.
3 RESULTS
Geosyntec submitted six soil samples to the laboratory to be tested for Total Metals content (in
terms of milligrams per kilogram, mg/kg) and SPLP (in terms of milligrams per liter, mg/L, or
micrograms per liter, ug/L) analytical tests for the constituent list provided within Attachment B.
As -received laboratory test results are provided in Attachment C of this Report. Geosyntec
summarized the received test results within Table 2 compared the Total Metals content results with
the May 2019 Groundwater Protection Preliminary Soil Remediation Goals (PSRGs), May 2019
Industrial/Commercial PSRGs, and the Background Threshold Values (BTVs)2 established for
Sutton. The soil concentrations for the constituents of interests were generally found, when
detected, below the Industrial/Commercial and Groundwater Protection PSRGs, except for Iron.
Iron concentrations were found to range between 90 mg/kg and 520 mg/kg, which are below the
2 NCDEQ, Approval of Revised Background Threshold Values — L. V. Sutton Energy Complex. 14 May 2018.
GC6473/Sutton 1971Basin Analytical_ Sample _Test_Results RevO
engineers I scientists I innovators

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Mr. Thomas A. Sylvester, P.E.
9 October 2019
Page 4
BTV (2,750 mg/kg) at Sutton for Iron. Meanwhile, SPLP test results are summarized in Table 3
and provided in Attachment C.
CLOSING
Geosyntec appreciates the opportunity to provide this Report to Duke Energy. For any questions
regarding this Report, please contact the undersigned at 704-227-0840.
���� i �Jjj CAj . Sincerely,
0 • trs { �
4 / OacuSig nedby,
O '•'� r
SEAL V7 AkOV&SI,
�II+1 + 320F I BC9CF954D E...
10-T97-12f019 James D. McNash, P.E.iNc>
�1 �� Senior Engineer
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Tables: Table 1 — 1971 Basin Total Metals/SPLP Sampling Locations
Table 2 — 1971 Basin Surficial and Deep Sample Interval Analytical Test Results
Table 3 — 1971 Basin Surficial and Deep Sample Interval SPLP Results
Figures: Figure 1 — 1971 Basin Sampling Plan
Attachments: Attachment A — NCDEQ CCR Surface Impoundment Closure Guidelines for
Protection of Groundwater Letter
Attachment B — Excavation and Soil Sampling Plan
Attachment C — Analytical Sample Test Results
GC6473/Sutton 1971Basin Analytical_ Sample _Test_Results RevO
engineers I scientists I innovators

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
TABLES

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Table 1. 1971 Basin Soil Total Metals/SPLP Sample Locations
Boring ID
Latitude
Longitude
I Depth to Water (ft)
Testing Program
71B-01
34.29012332
-77.9856053
-
PLM
71B-02
34.29040825
-77.9858315
-
PLM
71B-03
34.2904375
-77.9855816
1.23
Analytical Tests + PLM
71B-04
34.29075977
-77.9859306
-
PLM
71B-05
34.29072008
-77.9856863
-
PLM
71B-06
34.29089753
-77.9864326
1.75
Analytical Tests + PLM
71B-07
34.29095579
-77.9861304
-
PLM
71B-08
34.29102453
-77.9857764
2.04
Analytical Tests + PLM
71B-09
34.29105465
-77.9858149
-
PLM
Notes:
[1] Coordinates were collected by handheld GPS and are approximate.
[2] Figures 1 depicts the boring locations.
[3] PLM - Polarized Light Microscopy

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Table 2. 1971 Basin Total Metals Analytical Test Results
y
+
o,
o
a
ea
[
d
U
Units
in.
-
%
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
Industrial / Commercial PSRGs
NE
230000
93
3
47000
470
47000
200
NE
NE
6.5
350000
70
9300
160000
NE
Groundwater Protection PSRGs
NE
110000
0.9
5.8
580
63
45
3
NE
NE
3.8
360000
0.9
700
150
270
Soil Background Threshold Values
NE
3846
0.64
0.772
4.99
0.0402
3.3
0.032
340
16
NE
3.08
0.89
0.59
2750
2.76
71B-03
0-6
6/19/2019
90.2
1200
<0.54U
OAJ
3.8
<O.11U
<2.7U
<0.14U
120J
<11U
<1.1U
1.1
0.29J
0.3J
300
0.99
71B-03
24-30
6/19/2019
81.5
450
<0.48U
<0.48U
1.8
<0.097U
<2.4U
<0.13U
65J
2.7J
<1.2U
0.46J
<0.68U
<0.48U
90
0.47
71B-06
0-6
6/19/2019
94.4
970
<0.47U
0.83
5.4
0.033J
<2.4U
<0.12U
130J
<11U
0.22J
1
0.29J
0.57
520
1
71B-06
24-30
6/19/2019
75.7
770
<0.57U
0.47J
1.6
<O.IIU
<2.8U
<0.15U
73J
3J
0.29J
0.95
<0.79U
<0.57U
290
0.5
71B-08
0-6
6/19/2019
96
700
<0.44U
0.33J
1.8
<0.088U
<2.2U
<O.11U
<220U
<IOU
0.21J
0.64
<0.61U
0.31J
190
0.76
7113-08
24-30
6/19/2019
76.1
850
<0.59U
0.29J
1.6
<0.12U
<3U
<0.15U
59J
1 3.0
<1.3U
0.74
<0.83U
<0.59U
170
0.73
Notes:
[ 1 ] PSRGs - Preliminary Soil Remediation Goals; in. - inches; mg/kg - milligrams per kilogram; NE - Not Established; DL - Detection Limit; LOQ - Limits of Quantification.
[2] PSRGs downloaded from NCDEQ website and are dated May 2019. Background Threshold Values are based on the 14 May 2018 letter titled "Approval of Revised Background Threshold Values - L. V. Sutton Energy Complex" from NCDEQ.
[3] U - Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
[4] J - Estimated Result < LOQ and > DL.
[5] S - Matrix Spike (MS) / Matrix Spike Duplicate (MSD) failure.
[6] B - Indicates detection within method blank.
[7] Field sample identification provided within Attachment C is a concatenation of the Boring ID and the Sample Depth fields.
[8] Green cell shading represents constituent level above the Groundwater Protection PSRG but below the BTV for Sutton.

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Table 2. 1971 Basin Total Metals Analytical Test Results (Continued)
y
z
Units
in.
-
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
pfl_Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
Industrial / Commercial PSRGs
NE
5600
9.7
1200
4700
370000
NE
NE
1200
1200
NE
140000
NE
2.3
1200
70000
Groundwater Protection PSRGs
NE
65
1
7.1
130
NE
NE
NE
2.1
3.4
NE
1500
NE
0.28
350
1200
Soil Background Threshold Values
290
5.32
0.11
2.7
2.7
0.31
6.6
290
1.7
NE
340
1.29
16
0.17
8.16
2.9
71B-03
0-6
6/19/2019
39J
3.1
<0.081U
<2.2U
1.3J
0.14J
7.2
49J
<1.4U
<0.27U
<270U
2.9
<11U
<0.14U
3.1
4.2
71B-03
24-30
6/19/2019
<240U
1.3
<0.097U
<1.9U
<1.9U
0.22J
7.1
<240U
<1.3U
<0.24U
<240U
1.6
12
<0.13U
LH
1.7J
7113-06
0-6
6/19/2019
36J
3.1
<0.08U
<1.9U
1.3J
0.16J
6.9
48J
<1.2U
<0.24U
<240U
4.3
<11U
<0.12U
3.3
3.7
71B-06
24-30
6/19/2019
<280U
0.81J
<O.IU
<2.3U
<2.3U
0.31
6.8
<280U
<1.5U
<0.28U
<280U
2.9
19
<0.15U
1.9
1.7J
71B-08
0-6
6/19/2019
<220U
1.1
<0.086U
<1.8U
<1.8U
0.15J
4.9
41J
0.53J
<0.22U
<220U
1.3
12
<O.11U
0.93J
1.2J
71B-08
24-30
6/19/2019
<300U
0.9
1 <0.098U
<2.4U
<2.4U
1 0.86
5.7
44J
I <1.5U
<0.3U
<300U
1 2.9
1 66
1 <0.15U
1 4.1
IAJ
Notes:
[ 1 ] PSRGs - Preliminary Soil Remediation Goals; in. - inches; mg/kg - milligrams per kilogram; NE - Not Established; DL - Detection Limit; LOQ - Limits of Quantification.
[2] PSRGs downloaded from NCDEQ website and are dated May 2019. Background Threshold Values are based on the 14 May 2018 letter titled "Approval of Revised Background Threshold Values - L.V
[3] U - Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
[4] J - Estimated Result < LOQ and > DL.
[5] S - Matrix Spike (MS) / Matrix Spike Duplicate (MSD) failure.
[6] B - Indicates detection within method blank.
[7] Field sample identification within Attachment C is a concatenation of the Boring ID and the Sample Depth fields.
[8] Green cell shading represents constituent level above the Groundwater Protection PSRG but below BTV for Sutton.
Sutton Energy Complex" from NCDEQ.

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Table 3. 1971 Basin SPLP Results
+
a
•a
�'
C4
�
�
dam'
�
�
�
�
�
�
�
�
� j
V
�
�l
U
U
Units
in.
-
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
71B-03
0-6
6/19/2019
7.5
<0.002U
0.004
0.014J
<OU
0.03J
<O.00IU
4J
<lU
<0.02U
0.005J
O.001J
<0.01U
2.2
0.003
71B-03
24-30
6/19/2019
3.8
<0.002U
0.002
0.01J
<OU
<0.05U
<O.00IU
2.3J
<lU
<0.02U
0.003J
<0.005U
<0.01U
1
0.001
71B-06
0-6
6/19/2019
6.4
<0.002U
0.006
0.035
<OU
<0.05U
<O.00IU
2.8J
<lU
<0.02U
0.004J
<0.005U
<O.OIU
2.1
0.003
71B-06
24-30
6/19/2019
4.8
<0.002U
0.003
0.018J
<OU
0.029J
<O.00IU
2J
0.21J
<0.02U
0.004J
<0.005U
<0.01U
0.76
0.001
71B-08
0-6
6/19/2019
0.7
0.001J
<0.002U
0.017J
<OU
0.025J
<O.00IU
<5U
<lU
<0.02U
<O.OIU
<0.005U
<0.01U
0.15
<0.001U
71B-08
24-30
1 6/19/2019
1 1.4
<0.002U
<0.002U
O.O11J
<OU
I <0.05U
<0.001U
1.9J
<lU
<0.02U
<0.01U
<0.005U
<0.01U
0.38
1 0.001J
Notes:
[1] in. - inches; 7 1 B - 1971 Basin; mg/L - milligrams per liter; NE - Not Established; DL - Detection Limit; LOQ - Limits of Quantification.
[2] U - Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
[3] J - Estimated Result < LOQ and _> DL.
[4] S - Matrix Spike (MS) / Matrix Spike Duplicate (MSD) failure.
[5] B - Indicates detection within method blank.
[6] Field sample identification within Attachment C is a concatenation of the Boring ID and the Sample Depth fields.

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Table 3. 1971 Basin SPLP Results (Continued)
A
A
x
?
y
°
Z
Z
p:
vs
U'
E•"
Units
in.
-
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
71B-03
0-6
6/19/2019
<5U
0.004J
<OU
<0.04U
0.007J
0.084
<5U
<0.005U
<0.001U
4.2J
0.055
<lU
<0.001U
0.044
0.029
71B-03
24-30
6/19/2019
<5U
0.002J
<OU
<0.04U
<0.04U
0.18
<5U
<0.005U
<0.001U
2.5J
0.035
0.43J
<0.001U
0.025
0.017J
71B-06
0-6
6/19/2019
<5U
0.005J
<OU
<0.04U
0.006J
0.21
<5U
<0.005U
<0.001U
2.4J
0.063
<lU
<0.001U
0.033
0.022
7113-06
24-30
6/19/2019
<5U
0.003J
<OU
<0.04U
<0.04U
0.21
<5U
0.004J
<0.001U
3.4J
0.057
0.76J
<0.001U
0.017
0.01J
71B-08
0-6
6/19/2019
<5U
<0.015U
<OU
<0.04U
<0.04U
0.63
<5U
0.002J
<0.001U
3J
0.009J
0.45J
<0.001U
<0.005U
0.006J
71B-08
24-30
6/19/2019
<5U
0.002J
<OU
<0.04U
<0.04U
0.33
1 <5U
0.004J
<0.001U
1.3J
0.067
2.7
<0.001U
0.027
0.007J
Notes:
[1] in. - inches; 71B - 1971 Basin; mg/L - milligrams per liter; NE - Not Established; DL - Detection Limit; LOQ - Limits of Quantification.
[2] U - Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
[3] J - Estimated Result < LOQ and > DL.
[4] S - Matrix Spike (MS) / Matrix Spike Duplicate (MSD) failure.
[5] B - Indicates detection within method blank.
[6] Field sample identification within Attachment C is a concatenation of the Boring ID and the Sample Depth fields.

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
FIGURE

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
' " "� N
ID Northing Easting Lab Test �, � _ � •• r
71B-01 198147.379 2306411.285 PLM
71B-02 198250.373 2306341.923 PLM
71B-03 198261.788 2306417.276 PLM & Metals
71B-04 198377.992 2306310.662 PLM
71B-05 198364.31 2306385.437 PLM
71B-06 198426.577 2306158.526 PLM & Metals -� L
71B-07 198448.711 2306249.58 PLMi ` -
71B-08 198474.819 2306356.247 PLM & Metals
71B-09 198485.662 2306344.506 PLM
r- f Cooling Pond
r
,r
�• y
r.
@W Y••
r
.ilk
Neg-
y } r
r'
- _ y41 ? x .
qr
t
F.. K
3Y •� i
vow
Legend Yq[9/
1971 Basin Sample Locations 4r IF
1971 Basin Edge of Water
r 250 125 0 250 500 Feet
Lay of Land Area F11111111111111111111
0 Basin Boundary 1971 BASIN SAMPLING PLAN
® On -site CCR Landfill Footprint
.. -.
• L.V. Sutton Energy Complex
Notes I• ` r Wilmington, North Carolina
1. Aerial Imagery provided by Google Earth and was collected prior
to 1971 Basin excavation. Geos
* ' (� DUKE
- yntec° ENERGY.Figure
2. Edge of water provided by McKim and Creed bathymetric survey :� -. � �• r� '� �
dated 21 May 2019. ' • -, i. I Consultants PROGRESS
3. Geosyntec identified sampling locations on a 100' by 100' grid per 1
the Duke Energy Excavation Soil Sampling Plan. Source: E ri, Dig�faLG.lobe, GeoEy�e„ Earthstar Geogrlaphics, W, CHARLOTTE, NC JULY 2019

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ATTACHMENT A

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
November 4, 2016
Mr. Harry Sideris
Senior Vice President
Environment, Health, and Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, NC 28202
PAT MCCR0RY
DONALD R. VAN DER VAART
S. JAY ZIMiviFIZN/1AN
Subject: CCR Surface Impoundment Closure Guidelines for Protection of Groundwater
Dear Mr. Sideris:
Attached are the Coal Combustion Residuals Surface Impoundment Closure Guidelines for Protection of
Groundwater developed by the North Carolina Department of Environmental Quality. The purpose of these
closure guidelines is to promote consistent implementation of performance standards for soil that will meet
15A NCAC 02L and meet the intent of the closure requirements in the Coal Ash Management Act (CAMA)
under § 130A-309.214.
In order to confirm site conditions at the time of closure, details are needed concerning the ash basin closure
procedure employed including the decision making process that guided the depth of excavation for soil
removal, basis for the sampling grid design, soil sampling methods, lab analysis for constituents of interest,
and modeling to support closure.
If your technical team has questions in reference to any of these directions, please feel free to contact Steve
Lanter at [phone]. We would also be willing to set up a meeting for further technical discussion.
Sincerely,
S,ti,ilil"nerman, P.G.,
Division of Water Resources
cc: WQROS Regional Supervisors and Assistant Supervisors
WQROS Central File Copy
Tom Reeder
Attachment (1)
state or North Carolina I Envirotttnental Quality I Water Resources
1611 Mail service Center I Raleigh, North Carolina 27699-161 1
919 707 9000

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Attachment 1
Coal Combustion Residuals Surface Impoundment Closure
Guidelines for Protection of Groundwater
The overall objective of these guidelines is to address remediation of discharges or releases of
contaminants into soil and groundwater resulting from Coal Combustion Residuals (CCR) disposal
to cleanup levels that meet Title 15A of the North Carolina Administrative Code Subchapter 02L
standards (21, Standards):
• For groundwater, the cleanup level is the site -specific background concentration or the 2L
Standards.
• For soil, the cleanup level is either the site -specific background concentration or the lowest
soil screening level (SSL) protective of groundwater.
Protection of groundwater criteria dictates groundwater and soil remediation goals in the closure
process. Either Preliminary Soil Remediation Goals (PSRGs) identified using North Carolina's
Department of Environmental Quality (DEQ)'s Inactive Hazardous Sites Branch (IHSB) SSLs,'
or site -specific background concentrations in soil will be used to identify soil remediation goals
that are protective of groundwater quality. Any wastes encountered that are not associated with
CCR will be addressed by applicable DEQ Division of Waste Management (DWM) program
guidance.
Excavation Soil Sampling Plan
Sampling and analyses of soil collected during excavation of a CCR Impoundment is needed in
order to develop soil remediation goals and corresponding cleanup levels. The responsible party
may need to prescribe additional sampling and analysis based on site -specific conditions.
A stand-alone Excavation Soil Sampling Plan (Plan) generated for closure of a CCR surface
impoundment shall be developed to ensure the proposed excavation design is comprehensive
enough in scope to meet the performance standards for closure. This Plan shall be submitted to
DEQ as part of an Excavation Plan, with details to show how the sample analytical results and
related modeling will incorporate the data collected as part of the final overall closure plan for
approval, as dictated by § 130A-309.214.
CCR Excavation Determination
CCR excavation will be considered complete based on a visual confirmation that all CCR and co -
mingled CCR/soil has been removed. The extent of co -mingled CCR/soil will be based on
sampling of the material and analysis under Polarized Light Microscopy (PLM). Soil samples will
I The steps or methodology for calculating SSLs for contaminant migration to groundwater were developed to identify
chemical concentrations in soil with the potential to migrate and contaminate groundwater. SSLs protective of
groundwater are calculated with a soil leachate model using default values from the 2L groundwater standard or the
2L groundwater interim maximum allowable concentration (IMAQ as target groundwater concentrations and take
into consideration fate and transport parameters.
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DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
be examined utilizing methods outlined in American Standards for Testing and Measures (ASTM)
D2488, Standard Practice for Description and Identification of Soils (Visual -Manual Procedure).
Vertical and horizontal excavation of CCR can terminate when the remaining material can be
documented using PLM to contain less than 50% CCR.
Visual confirmation sampling of CCR will be performed on a 100-foot grid system. The soil
sample should be collected by advancing a boring using a hand -auger or from a test pit at a
minimum depth of 2 feet below ground surface. The sample should be analyzed using PLM and
excavation of the CCR will be considered complete when the sample contains less than 50%
CCR.
If possible, excavation of CCR material should continue even if groundwater is encountered. If
complete excavation of the CCR and co -mingled CCR/soil (greater than 50% CCR) is not able to
be completed, dOCUmentation of site conditions or other restricting factors shall be presented to
the DEQ.
Soil Sampling and Analysis
Sampling of the remaining soils (containing less than 50% CCR) will be necessary to evaluate the
extent of contamination depending on the depth of water table and any proposed institutional or
engineering controls that may be used in the area of excavation. Soil sampling will not be required
if refusal or the top of bedrock are encountered, or the remaining soils are below the water table.
Soil samples for laboratory analysis must be collected in a manner that will ensure a relatively
uniform distribution of particles throughout the 6-inch sample.
The systematic approach and design for soil sampling and analysis is dependent upon two
scenarios:
Scenario 1: Remaining soil (containing less than 50% CCR) is located above the seasonal
high water table and final constructed institutional and/or engineering controls will restrict
infiltration from the surface reaching the water table (e.g. installation of a liner system).
Scenario 2: Remaining soil (containing less than 50% CCR) is located above the seasonal
high water table and infiltration from the surface would continue to reach the water table.
Scenario 1. Confirmation sampling will include discrete surface samples collected from the first
6 inches of the soil. Sampling will be performed on an acre grid system. This sample collection
methodology shall be sufficient to characterize the horizontal extent of any remaining soil
contamination for comparison with the PSRG. The samples shall be analyzed by a North Carolina
certified lab for total concentrations of the following parameters: Antimony, Aluminum, Arsenic,
Barium, Beryllium, Boron, Cadmium, Calcium, Chloride, Chromium (total and hexavalent),
Cobalt, Copper, Iron, Lead, Magnesium, Manganese, Mercury, Molybdenum, Nickel, Nitrate as
Nitrogen, pH, Potassium, Selenium, Silver, Sodium, Strontium, Sulfate, Thallium, Vanadium, and
Zinc.
Scenario 2. Confirmation sampling will include collection of both discrete surface and subsurface
soil samples performed on an acre grid system. Discrete surface samples will be collected from
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DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
the first 6 inches of the soil and a subsurface soil sample will be collected from a 6-inch discrete
interval at a minimum depth of 2-feet below the surface soil sample depth interval unless refusal,
bedrock, or the water table are encountered. This sample collection methodology shall be
sufficient to characterize both the horizontal and vertical extent of any remaining soil
contamination for comparison with the PSRG and/or input into the soil leachate model. The
samples shall be analyzed by a North Carolina certified lab for both total concentrations and by
the Synthetic Precipitation Leaching Procedure (SPLP) of the following parameters: Antimony,
Aluminum, Arsenic, Barium, Beryllium, Boron, Cadmium, Calcium, Chloride, Chromium (total
and hexavalent), Cobalt, Copper, Iron, Lead, Magnesium, Manganese, Mercury, Molybdenum,
Nickel, Nitrate as Nitrogen, pH, Potassium, Selenium, Silver, Sodium, Strontium, Sulfate,
Thallium, Vanadium, and Zinc.
Characterization and Management of Non -Ash Material
If non -ash materials are discovered during ash removal activities, work in that area will be stopped,
temporarily relocated to another area, and the Duke Energy environmental team will be contacted
to perform the appropriate assessment(s) to determine the nature and the extent of the non -ash
related impacts. Depending upon the material encountered, the area will either be delineated and
segregated for profiling and proper disposal, or placed directly into roll -off containers for proper
disposal.
Hazardous Waste Operations and Emergency Response (HAZWOPER) crews will be mobilized
to the site to perform the excavation activities if hazardous materials are encountered. The
appropriate DEQ Division of Water Resources Regional Office or the DWM will be contacted if
these areas are discovered and the plan for proper removal and disposal will be discussed. Non -
ash related areas will be documented on excavation drawings and information recorded will
include, but not be limited to, the material encountered, the dimensions with coordinates of the
excavated area, the health and safety protocols used to protect human health and the environment
during the execution of these activities, a summary of the sample and confirmation analytical
results, and copies of the appropriate manifests.
Determination of Site -Specific Soil Remediation Goals and Cleanup Levels
Protection of groundwater soil remediation goals can be identified by following specific
instruction found in DWM remediation guidance (referred to below). Only requirements for
remediation goals that involve protection of groundwater criteria will be considered. Risk -based
or health -based remediation goals for unrestricted land use will not be considered for closure
performance standards.
The DWM IHSB guidance documents that contain direction for establishing remediation goals
include:
• Inactive Hazardous Sites Guidelines for Assessment and Cleanup:
litt1)://lorait.nt,:deiu-.ur,/c/docunictit I"i'.'(ILlicl=32atidas_t-c1�5t)-���?-��_�7=
201 f9 b2eedc-& Yrouj)ld-38361 and
Page 3 of 5

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Registered Environmental Consultant (REC) Program Implementation Guidance:
hllls:iiliortul_ixsi,. _ _ I9cicttt,-bOcf4ehl=8' 59-
5[)�5�I�1�b6a43cC,�r��tipitl-;�?fi[ � � -- � -- --
Site -specific soil remediation goals are identified by:
Identifying PSRGs that relate to the SSLs that meet the protection of groundwater criteria
for a specific constituent, and
Determining site -specific background concentrations in soil.
The procedure for identifying PSRG that meets protection of groundwater criteria and the
corresponding SSL involves the following:
• Screening_ Values. The screening values that relate to SSLs protective of groundwater are
shown in the PSRG Table located at:
1�tt3;/i��ortill,llccltair:��r�� c/do�uit�en� lil�taryl,CiI'cc.��s{)I)-���(a-48 5-►be4-
.:l I l�t�C�il�e�E(��.•1i�ts�� u��lcl=3�(i 1.
• PSRG table. This contains a column with soil remediation goals titled "Protection of
Groundwater PSRG" that should be used in evaluating soil -to -groundwater values that
meet and are protective of 2L standards. The values in this table for the respective
constituents are the SSLs, which are the contaminant -specific soil remediation goals that
are the cleanup levels for site closure. Note that the DWM updates this table during the
first and third quarter of each calendar year.
• Transport Model. A transport model is included in the PSRG table for calculating other
SSLs not specifically listed in the table in order to meet protection of groundwater criteria.
15A NCAC 2L .0202 (c) does specify substances that are not permitted in groundwater and
indicates that even those which are not specifically listed in the rule are not allowed above.
the PQL, unless they are naturally occurring. The approved laboratory method PQL for
the substance can be used in the equation if there is no specifically listed 2L standard.
• Background Concentrations. Background concentrations of naturally occurring metals in
soil at a site can be established using US Environmental Protection Agency guidance for
comparing background and chemical concentrations in soil:
-C --it�� t/GLEIiI_'._'_tilell7-C>!);3 I
Groundwater Modeling
Contingency for stabilization of remaining amounts of contaminated soil in a manner that will
meet the intent of the 2L Rules and closure requirements shall be considered as site conditions
dictate. Provisions to develop groundwater flow and transport models to evaluate protection of
groundwater criteria if some soil contamination is left in place shall be considered. In addition,
the possibility of metals leaching into soils from a potential change in pH and geochemical
conditions related to dewatering and excavation shall be considered along with plans for
groundwater models to assess resulting site conditions.
References
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DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
American Standards for Testing and Measures Standard D D2488-09a Standard Description and
Identification of Soils (Visual -Manual Procedure), 2009.
North Carolina Department of Environment and Natural Resources Division of Waste
Management — Superfund Section — Inactive Hazardous Sites Branch, Inactive Hazardous Sites
Guidelines forAssessment and Cleanup, November 2014, hays. Jrt ilctlr,s t.rai���u�>>j� �..c�?it7ls, is -
t�uulicll��issc'�__r2(?llatt�t7elltctlt:'D�t'ivfl`�t�/III.S/���i�1:u1��i1�1S[3>�'t)Glll)�`�;�Ci�:���t3�s��:,�;Z�c�;t
--1('atitlt«'01ciiic.dialioji ', avcd1 i202_9-2010.[Af.
North Carolina Department of Environment and Natural Resources Division of Waste
Management — Superfund Section — Inactive Hazardous Sites Branch, Inactive Hazardous Sites
Branch Preliminary Soil Rernediation Goals (PSRG) Table,
(tip //I)oaal, 1Ic"l,Iir.O1-'/c�'doCt1r1w1)t
119`idie t6c1c.L';:rc�ut3ld=,`C 1
North Carolina Department of Environment and Natural Resources Division of Waste
Management — Superfund Section — Inactive Hazardous Sites Branch, Registered Environmental
Consultant Program Implementation Guidance, November 2014,
hlf pa/po�ial ,t�cdct� r,e>>:;�h/�1_��ctit���!t l l ihl=str�l�el I ile?tl a icl=.�O�c�i}� IZ�-�741t ! _-IL hf-�4
5018415ft,J& tc�:ld= 5')6j
North Carolina Administrative Code Title 15A Subchapter 2L Section .0100, .0200, .0300,
Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina..
April 1, 2013, ilitpa/portal.Ilcdenr.�rc/cic;��n�;ent lihrz�r_y/tset _filehtLziti-l�ta�tEtl
aL�)6-�-1?
US Environmental Protection Agency. Guidance, for Comparing Background and Chemical
Concentrations in Sail for CERCLA Sites, EPA 540-R-01-0030SWER 9285.7-41, September
2002, ht[ �;//itrcwch.ett�/1�ilcC abitletlGctl�ile'l'ihll3=(��3;1.
US Environmental Protection Agency. Final Rule fo1- Disposal of Coal Combustion Residuals
from Electric Utilities. 80 FR 21301. 40 CFR Parts 257 and 261. April 17, 2015.
hill)-"://w•uvv.cedertil�io�/artlJcs120.15/0/1%/201�-00�57i.d-wast%�-
t11�[il•ilC'•il1S-i]�-ti'e�llll�lllti�litiill-(JI l'L7i11-C --Ili------ lC?il-1'l$Il1LI------lit?lll-�ItiCtl'l�'
Page 5 of 5

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ATTACHMENT B

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
EXCAVATION SOIL SAMPLING PLAN
L.V. SUTTON ENERGY COMPLEX
1984 ASH BASIN
FOR ASH BASIN EXCAVATION
NORTH CAROLINA ASH BASIN CLOSURE
DUKE ENERGY CAROLINAs, LLC.
526 SOUTH CHURCH STREET/ECI3K
CHARLOTTE, NORTH CAROLINA 28202
('DUKE
' ENERGY
Waste & Groundwater Programs
Revision 2
December 2018

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan December 2018
L.V. Sutton Energy Complex 1984 Ash Basin Revision 2
TABLE OF CONTENTS
SECTION PAGE
1.0 PURPOSE..........................................................................................................................1
2.0 DOCUMENTATION SUMMARY...............................................................................1
TABLE 1 - Post Ash Basin Excavation Soil Data Collection......................................1
3.0 SOIL SAMPLING METHODOLOGY......................................................................... 2
3.1 Method Summary........................................................................................................ 2
3.1.1 Equipment...............................................................................................................2
3.1.2 Sample Locations................................................................................................... 3
3.1.3 Collection of Representative Samples................................................................. 3
3.1.4 Sample Preservation, Containers, Handling and Storage ................................ 4
3.1.5 Decontamination....................................................................................................4
4.0 VISUAL CONFIRMATION OF ASH REMOVAL .................................................... 5
4.1 Pre -Excavation Documentation................................................................................. 5
4.2 Ash Removal Verification Protocol...........................................................................
5
4.2.1 Field Documentation.............................................................................................
5
4.2.2 Fill Evaluation Criteria..........................................................................................
6
4.3 Visual Removal Not Applicable................................................................................
6
5.0 SOIL SAMPLING AND ANALYSIS...........................................................................
7
5.1 Soil Sampling................................................................................................................
7
5.1.1 Scenario 1................................................................................................................
7
5.1.2 Scenario 2................................................................................................................
7
5.2 Fate and Transport Modeling.....................................................................................
8
TABLE 2 - Soil Parameters and Analytical Methods Totals and SPLP Analysis
North Carolina Ash Basins to be Closed Via Excavation ...........................................
9
FIGURE 1— Sutton 1984 Ash Basin Sample Grid ......................................................
10
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Excavation Soil Sampling Plan
L.V. Sutton Energy Complex 1984 Ash Basin
December 2018
Revision 2
The purpose of this Excavation Soil Sampling Plan is to provide a standardized method for collecting soil
samples at Duke Energy North Carolina ash basins that are to be closed via excavation. Soil samples are
being collected following all visible ash removal from certain ash basins to support closure activities.
This Excavation Soil Sampling Plan is applicable to the collection of representative soil samples. Analysis
of soil samples may be chemical or physical in nature and may be used to determine the following:
• Extent and magnitude of constituent occurrence
• Input concentrations for groundwater fate and transport model
The methodologies discussed in this Excavation Soil Sampling Plan are applicable to the sampling of soil
in ash basin excavation areas. For the purposes of this plan, soils are those mineral and organic
materials remaining after all visible ash has been excavated.
2.0 DOCUMENTATION SUMMARY
TABLE 1- Post Ash Basin Excavation Soil Data Collection
Task
Description
Test
Depth
Visual Inspection on 100' X 100' grid
Visually confirm primary source
node
removal at nodes (Figure 1) and
N/A
N/A
document with photographs.
Soil sample analysis on 100' X 100'
Collect representative samples at
0 - 6 inches'
grid node
nodes (Figure 1) the appropriate
PLM
2 2 5'
depths.
0 - 6 inches'
Soil Sample Analysis on an acre grid
Collect representative samples at the
Total Metals
2 2.5
7 7.5
system2
appropriate depths.
SPLP
12' - 12.5'
17' - 17.5'
Notes:
' If a certain six-inch sample interval does not yield sufficient soil volume to fill five 8-ounce sample bottles, the
sample interval may be expanded to twelve inches to allow for sufficient soil sample volume. The revised sample
interval should be appropriately documented.
2Excavation is complete once confirmed by visual inspection and PLM analysis per Section 4.0.
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Excavation Soil Sampling Plan December 2018
L.V. Sutton Energy Complex 1984 Ash Basin Revision 2
3.0 SOIL SAMPLING METHODOLOGY
3.1 Method Summary
This Excavation Soil Sampling Plan has been adapted from Environmental Protection Agency (EPA)
Standard Operating Procedures (SOPS) #2012 and #2006; and North Carolina Department of
Environmental Quality (NC DEQ) Attachment 1 Coal Combustion Residuals Surface Impoundment
Closure Guidelines for Protection of Groundwater, November 4, 2016.
Soil samples are collected directly using stainless steel or plastic trowel, spade, shovel, or scoops.
Following collection, soil is transferred from the sampling device to a stainless steel or plastic bowl to be
homogenized. Once homogenized, the soil is transferred into Duke Energy Laboratory supplied sample
bottles.
Soil samples will be submitted under chain of custody for the following analyses: total metals and
Synthetic Precipitation Leaching Procedure (SPLP) metals. Analytical methods for total metals and SPLP
metals are described in Table 2. Ash presence is quantitatively determined by polarized light
microscopy (PLM) by RJ Lee Laboratory (or other approved vendor). PLM analysis passes visible light
through a pair of polarizing filters to create optical effects used in identifying unknown materials. This
method is commonly used in asbestos and coal ash identification.
3.1.1 Equipment
• Stainless steel or plastic trowel, scoop, spade or shovel — Used for collecting soil samples
from surface locations.
• Sample containers — To be supplied by Duke Energy Laboratory with appropriate
cooler(s). Estimated that five 8-ounce sample bottles with Teflon -lined lids will be
required for each sample location and sample depth. For return of cooler to the lab, ice
will be required.
• Gloves — Used for personal protection and to prevent cross -contamination of samples —
nitrile, disposable, powderless.
• Field clothing and Personal Protective Equipment — Used as specified in the site Health
and Safety Plan.
• Sampling flags — Used for identifying soil sampling locations.
• Field notebook — A bound book used to record progress of sampling effort and record
any problems and field observations during sampling.
• Three-ring binder book — Used to store necessary forms and record and track samples
collected at the site.
• Permanent marking pen — Used to label sample containers, document field logbooks,
data sheets and chain of custody.
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Excavation Soil Sampling Plan
December 2018
L.V. Sutton Energy Complex 1984 Ash Basin
Revision 2
• Stainless steel or plastic spoon — Used for homogenizing soil samples within a stainless
steel or plastic bowl.
• Stainless steel or plastic bowl — Used for homogenizing soil samples, when applicable.
• Camera — Used for photo -documentation of sample locations and samples.
• GPS — Device used to obtain elevation, latitude and longitude of sample location.
• Trash bag — Used to dispose of gloves and any other non -hazardous waste generated
during sampling.
• Decontamination supplies and equipment.
3.1.2 Sample Locations
General locations for soil sampling are determined by the soil scientist in the field at a rate of
one soil sample for every 1 acre of ash basin area excavated. Actual sampling locations on site
may vary to account for site conditions and to allow collection of representative samples.
Representative samples reflect areas where all ash has been visually excavated and natural soil
is observed.
3.1.3 Collection of Representative Samples
For the purpose of this plan, surface soil is considered to range from 0 to 6 inches in depth,
while deeper samples will be collected at a range of 2 to 2.5 feet below ground surface (bgs), 7
to 7.5 feet bgs, 12 to 12.5 feet bgs, and 17 to 17.5 feet bgs (Table 1) unless bedrock, refusal, or
the water table are encountered. A surface soil sample and deeper samples will be collected at
each location for every 1 acre of ash basin excavated. A new pair of nitrile gloves is worn at
each sampling location and each depth. Each sampling location is recorded on the site map
prior to collecting the sample if the location is not already noted on the map. The GPS location
of each sampling location (i.e. elevation, latitude and longitude), sample descriptions, and area
photographs are also recorded. All sampling equipment is decontaminated prior to use
irrespective of depth. The following procedure will be used to collect representative soil
samples with a scoop, shovel, trowel, geoprobe, or excavator:
• Locate general sampling locations.
• Determine suitability of sampling location for a representative sample.
• If sampling location appears to reflect representative conditions that would allow
collection of a representative sample, proceed with sampling procedure. If
location is not indicative of conditions that would allow collection of a
representative sample, notify the project manager so an alternate location can
be identified.
• Using a decontaminated sampling instrument, remove the desired thickness and
volume of soil from the sampling area. The sampler must obtain enough soil to
fill five 8-ounce sample bottles. If a certain six-inch sample interval does not
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Excavation Soil Sampling Plan
December 2018
L.V. Sutton Energy Complex 1984 Ash Basin
Revision 2
yield sufficient soil volume to fill five 8-ounce sample bottles, the sample interval
may be expanded to allow for sufficient soil sample volume. The revised sample
interval should be appropriately documented.
• Transfer the sample into an appropriate sample or homogenization bowl. Non -
dedicated containers should be adequately decontaminated. Stir for
approximately one minute until there appears to be a uniform color and
consistency.
Transfer homogenized sample to a labeled container(s) of appropriate size and
construction for the analyses requested.
• Secure sample container tightly.
3.1.4 Sample Preservation, Containers, Handling and Storage
Chemical preservation of soils is generally not recommended. Cooling to 4°C on wet ice is
usually the best approach, supplemented by the appropriate holding time for the analyses
requested.
The Duke Energy Laboratory will supply the appropriate sample bottles for the collected soil
samples. The sample volume is a function of the analytical requirements and the Duke Energy
Laboratory will ensure the appropriate number of bottles are supplied. Ensure chain of custody
is completed for sample bottle return to the Duke Energy Laboratory.
Table 2 contains a list of parameters to be analyzed with corresponding reporting units and
analytical methods. If a parameter or group of parameters is not included in Table 2, the
laboratory performing the analysis should be contacted to determine the appropriate sample
bottles, volumes, and preservatives.
All non -dedicated sampling devices should be decontaminated and wrapped in plastic. The
sampling device should remain in this wrapping until it is needed. Each sampling device should
be used for only one sample and then decontaminated or disposed of. Non -dedicated sampling
devices should be cleaned in the field using the decontamination procedure described below.
3.1.5 Decontamination
Decontamination procedures can be time consuming; having a sufficient quantity of sampling
tools available is recommended. All non -dedicated sampling equipment must be
decontaminated prior to reuse. Equipment decontamination consists of:
1. Detergent wash and brush cleaning
2. Tap water rinse
3. De -ionized water rinse
4. Air dry
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Excavation Soil Sampling Plan December 2018
L.V. Sutton Energy Complex 1984 Ash Basin Revision 2
Wrap sampling tools with plastic
4.0 VISUAL CONFIRMATION OF ASH REMOVAL
4.1 Pre -Excavation Documentation
Closure by removal is defined herein as removing the primary source (primary source of potential
constituents of interest) to the point that ash is not visible to the unaided eye at the ground surface.
Primary source ash is the main body of ash that was deposited in the basin. This method is intended
solely to verify and document primary source ash removal and is not intended to validate environmental
quality standards of the subsurface (considered the secondary source of potential constituents of
interest). Pre -excavation documentation would consist of:
• Review topographic mapping, aerial photography, construction drawings, and boring logs to
estimate the pre -ash placement topography and/or ash/soil interface
• Preparation of an ash basin figure illustrating a grid spacing of 100 feet (Figure 1). Each grid
point (node) will be assigned a unique identifier. Each node of the grid spacing (grid point) will
represent a visual verification location.
4.2 Ash Removal Verification Protocol
Ash excavation will be considered complete based on visual confirmation that all ash has been removed.
Ash removal will be based on sampling of the ash/soil interface and analysis by PLM. Soil samples will
be examined utilizing methods outlined in American Society for Testing and Materials (ASTM) D2488,
Standard Practice for Description and Identification of Soils (Visual -Manual Procedure). Vertical and
horizontal excavation of ash can terminate when the remaining material can be documented using PLM
to contain less than 50% ash.
Project will excavate ash until a visible change in color or texture confirms removal. This location shall
be referred to as the ash/soil interface. If visual evaluation is inconclusive, then request additional
evaluation to confirm ash removal.
4.2.1 Field Documentation
Evaluate the excavated surface elevation relative to the pre -ash placement topography.
Periodically check bottom elevation to evaluate if fill is present above historic bottom elevation.
Visual confirmation will be performed on a 100-foot grid system (Figure 1) unless conditions
prevent such confirmation, as described in Section 4.3. Soil sampling will be performed on a
100-foot grid system and will be analyzed using PLM.
• Personnel will locate each node by GPS or survey control, determine elevation and
evaluate whether that point is above or below the historic bottom elevation.
Personnel will then observe the surface area represented by the node, to note if visible
ash is present at the surface. If present, the location should be documented and
excavation will need to continue. If the evaluation indicates the surface soils are
residuum or bedrock, then hand auger to two feet below surface (or refusal) and
perform visual -manual classification of the soils at the surface and depth according to
Page 5

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan
December 2018
L.V. Sutton Energy Complex 1984 Ash Basin
Revision 2
ASTM method D2488. Submit sample from surface and depth (or shallower if refusal)
for PLM analysis. The conditions shall be documented by taking photographs.
The classification indicator for fly ash will be grey to black silt -sized particles with no
plasticity. The classification indicator for bottom ash will be grey to black sand to gravel
sized particles and porous. If the material cannot be positively identified as soil, submit
a sample for PLM analysis.
• If the node point elevation is near the historic bottom elevation then personnel can
conclude the primary source is removed when the following criteria are met:
1. Residuum is indicated by observation
Soil is confirmed by visual manual classification (ASTM D2488) and PLM analysis
less than 50%
4.2.2 Fill Evaluation Criteria
The following procedure provides an approach that can be used to ascertain if the fill can remain
in place. The procedure specified is based on the fill material and depth.
If the elevation is less than eight feet above the historic bottom elevation and residuum
is not observed, then test pits may be excavated to historic bottom elevation or until
residuum or bedrock is encountered, but no more than eight feet below the surface.
o Personnel will evaluate existing information to determine if the test pits are
necessary. If necessary personnel may recommend excavating test pits at a
frequency no tighter than 100 feet by 100 feet.
o If visible ash is not discovered based on information defined above, then the
primary source removal may be confirmed.
o If visible ash is discovered, then continue excavation.
• If the elevation is more than eight feet above historic bottom elevation and residuum is
not observed, discuss with CCP Closure Personnel.
o CCP Closure Personnel will confirm historic information and recommend a
drilling and sampling program at a frequency no tighter than 100 feet by 100
feet to evaluate the presence of ash below the fill in accordance with the
information defined above. If unusual features are revealed by the drilling, CCP
Closure Engineering may request/recommend additional borings. Exploration is
to be performed by continuous sampling during drilling.
o If visible ash is not discovered based on information defined above, then the
primary source removal may be confirmed.
o If visible ash is discovered, then continue excavation.
4.3 Visual Removal Not Applicable
If possible, excavation of ash should continue even if groundwater is encountered. Visual
documentation cannot be completed where ash is under the water table. If Duke Energy cannot
Page 6

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan
December 2018
L.V. Sutton Energy Complex 1984 Ash Basin
Revision 2
complete visual removal because of site conditions or other restricting factors, documentation shall be
presented to NC DEQ.
5.0 SOIL SAMPLING AND ANALYSIS
5.1 Soil Sampling
Soil sampling of the remaining soils (less than 50% ash per PLM analysis) will be necessary to evaluate
the extent of potential secondary source impacts depending on the depth of the water table and any
proposed institutional or engineering controls that may be used in the area of excavation. Soil sampling
will not be required if refusal or the top of bedrock are encountered or the remaining soils are below the
water table. Soil samples for laboratory analysis must be collected in a manner that will ensure a
relatively uniform distribution of particles throughout the six inch sample.
The systematic approach and design for soil sampling an analysis is dependent upon two scenarios:
• Scenario 1: Remaining soil (containing less than 50% ash per PLM analysis) is located above the
seasonal high water table and final constructed institutional and/or engineering controls will
restrict infiltration from the surface reaching the water table (e.g. installation of a liner system).
Scenario 2: Remaining soil (containing less than 50% ash per PLM analysis) is located above the
seasonal high water table and infiltration from the surface would continue to reach the water
table.
5.1.1 Scenario 1
Confirmation sampling will include discrete surface samples collected from the first six inches of
the soil. Sampling will be performed on an acre grid system. This sample collection
methodology shall be sufficient to characterize the horizontal extent of any remaining potential
secondary source impacts for comparison with the NC DEQ Preliminary Soil Remediation Goals
(PSRG). The samples shall be analyzed by a North Carolina certified laboratory for total
concentrations for the following parameters: antimony, aluminum, arsenic, barium, beryllium,
boron, cadmium, calcium, chloride, chromium (total and hexavalent), cobalt, copper, iron, lead,
magnesium, manganese, mercury, molybdenum, nickel, nitrate as nitrogen, pH, potassium,
selenium, silver, sodium, strontium, sulfate, thallium, vanadium, and zinc. No SPLP testing is
required.
5.1.2 Scenario 2
Confirmation sampling will include collection of both discrete surface and subsurface soil
samples performed on an acre grid system. Discrete surface samples will be collected from the
first six inches of the soil and a subsurface soil sample will be collected at 2 to 2.5 feet below
ground surface (bgs), 7 to 7.5 feet bgs, 12 to 12.5 feet bgs and 17 to 17.5 feet bgs unless refusal,
bedrock or the water table are encountered. The use of a geoprobe or excavator is anticipated.
This sample collection methodology shall be sufficient to characterize both the horizontal and
vertical extent of any remaining potential secondary source impacts for comparison with the NC
DEQ PSRGs and/or input into the soil leachate model. The samples shall be analyzed by a North
Page 7

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan
L.V. Sutton Energy Complex 1984 Ash Basin
December 2018
Revision 2
Carolina certified laboratory for both total concentrations and SPLP for the following
parameters: antimony, aluminum, arsenic, barium, beryllium, boron, cadmium, calcium,
chloride, chromium (total and hexavalent), cobalt, copper, iron, lead, magnesium, manganese,
mercury, molybdenum, nickel, nitrate as nitrogen, pH, potassium, selenium, silver, sodium,
strontium, sulfate, thallium, vanadium, and zinc.
5.2 Fate and Transport Modeling
Contingency for stabilization of remaining amounts of potential secondary source impacts in a manner
that will meet the intent of North Carolina Groundwater 2L Rules and closure requirements shall be
considered as site conditions dictate. Provisions to develop groundwater flow and transport models to
evaluate protection of groundwater criteria if some secondary source impacts are left in place shall be
considered. In addition, the possibility of metals leaching from a potential change in pH and
geochemical conditions related to dewatering and excavation shall be considered along with plans for
groundwater models to assess resulting site conditions.
Page 8

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan
L.V. Sutton Energy Complex 1984 Ash Basin
December 2018
Revision 2
TABLE 2 - Soil Parameters and Analytical Methods Totals and SPLP Analysis
North Carolina Ash Basins to be Closed Via Excavation
INORGANIC COMPOUNDS
UNITS
METHOD'
Aluminum
mg/kg or µg/I
EPA 6010D
Antimony
mg/kg or µg/I
EPA 6020B
Arsenic
mg/kg or µg/I
EPA 6020B
Barium
mg/kg or µg/I
EPA 6010D
Beryllium
mg/kg or µg/I
EPA 6020B
Boron
mg/kg or µg/I
EPA 6010D
Cadmium
mg/kg or µg/I
EPA 6020B
Calcium
mg/kg or µg/I
EPA 6010D
Chloride
mg/kg or µg/I
EPA 9056A
Chromium
mg/kg or µg/I
EPA 6010D
Cobalt
mg/kg or µg/I
EPA 6020E
Copper
mg/kg or µg/I
EPA 6010D
Hexavalent Chromium
mg/kg or µ
EPA Methodg/I 7199/218.7
Iron
mg/kg or µg/I
EPA 6010D
Lead
mg/kg or µg/I
EPA 6020B
Magnesium
mg/kg or µg/I
EPA 6010D
Manganese
mg/kg or µg/I
EPA 6010D
Mercury
mg/kg or µg/1
EPA Method
7470A/7471B
Molybdenum
mg/kg or µg/I
EPA 6010D
Nickel
mg/kg or µg/I
EPA 6010D
Nitrate as Nitrogen
mg/kg or µg/I
EPA 9056A
pH
SU
EPA 9045D
Potassium
mg/kg or µg/I
EPA 6010D
Selenium
mg/kg or µg/I
EPA 6020E
Silver
mg/kg or µg/I
EPA 6020E
Sodium
mg/kg or µg/I
EPA 6010D
Strontium
mg/kg or µg/I
EPA 6010D
Sulfate
mg/kg or µg/I
EPA 9056A
Thallium (low level) (SPLP Extract only)
mg/kg or µg/I
EPA 6020E
Vanadium
mg/kg or µg/I
EPA 6020B
Zinc
mg/kg or µg/I
EPA 6010D
Notes:
1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH
using USEPA Method 9045, as noted above (or similar approved methods). Soil samples will
also be analyzed for leaching potential using SPLP Extraction Method 1312 in conjunction with
USEPA Methods 6010/6020 (or similar approved methods).
Page 9

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Excavation Soil Sampling Plan
L.V. Sutton Energy Complex 1984 Ash Basin
FIGURE 1— Sutton 1984 Ash Basin Sample Grid
"' 9�'T" � 0 i� F fl9G9Ctb34�43�,C�ffr14Effi�����7 y
. ..
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Legend
❑ Prvp❑sed 1984 Basin Sa pdhg Location
-- Property Boundary
Lay of Land Rres {COLA]
0 Besi❑ Boundary
1b e
j 1. Senbe eog Ci tl, sorrt.�: E&V, ❑.r[CK U GeoE1p,
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dp w1matEPy Eanpeperaoe. SamO—MU wg❑
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December 2018
Revision 2
LV. SUTTON BASIN SAMPLING PLAN
LV.S—E-Complex
4Y[mlrgom, NO C Ina
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! �yERGY.
Figure
asvtLm-ra=.rrc
oEcvnaerszal�
i
Page 10

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ATTACHMENT C

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
DUKE Analytical Laboratory
ENERGY.
1 of 109
Order Number:
Project Name:
Customer Name(s):
Lab Contact:
Report Authorized By:
(Signature)
Program Comments:
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Vendor QC Data Review
Summary Report
J19060496
1971 Basin Closure Samples
Ricky Stroupe
Magda Dziurzynski Phone: [phone]
Digitally signed by Magda
�ri�T �, u[i✓1• eT� Dziurzynski
Date'. 201-TI812:33:3J-0400'
i Ad.be Acrobat version'. Date'
201 ] 011 30142
Magda Dziurzynski
7/18/2019
Please review all vendor data for case narratives with explanations of quality control failures and data qualifiers.
Any analytical tests or individual analytes within a test flagged with a qualifier indicate a deviation from the method quality
system or quality control requirement. Certified vendor results and QC qualifiers can be found in the vendor lab final report.
This report shall not be reproduced, except in full, without the written consent of the Analytical Laboratory.
Vendor Data Review Criteria:
This vendor data package has been reviewed at the Duke Analytical Laboratory for the following applicable criteria:
• Required QC samples collected and analyzed
• Required tests performed for all samples
• Vendor Laboratory utilized required test methods for all analyses
• Vendor Laboratory met all requested Reporting Limits (RL)
• QC Results reviewed for outlying recovery values
Case Narrative:
Method: 9045D pH
The pH analysis were performed after the method recommended 15 minute holding time.

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
2 of 109
SHEALY ENVIRONMENTAL SERVICES, INC.
Report of Analysis
Duke Energy
13339 Hagers Ferry Rd
Bldg 7405
Huntersville, NC 28078
Attention: Peggy Kendall
Project Name: Sutton Excavation Soil Samples
Project Number: J19060496
Lot Number:UF21017
Date Completed:07/17/2019
Project Manager:Grant Wilton
07/17/2019 5:20 PM
Approved and released by:
Project Manager: Cathy S. Dover
A C C P E t E❑
The electronic signature above is the equivalent of a handwritten signature.
This report shall not be reproduced, except in its entirety, without the written approval of Shealy Environmental Services, Inc.
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 1 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
3 of 109
SHEALY ENVIRONMENTAL SERVICES, INC.
SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639
Case Narrative
Duke Energy
Lot Number: UF21017
This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary
following this Case Narrative. The sample receiving date is documented in the header information
associated with each sample.
All results listed in this report relate only to the samples that are contained within this report.
Sample receipt, sample analysis, and data review have been performed in accordance with the most
current approved NELAC standards, the Shealy Environmental Services, Inc. ("Shealy") Quality
Assurance Management Plan (QAMP), standard operating procedures (SOPS), and Shealy policies. Any
exceptions to the NELAC standards, the QAMP, SOPS or policies are qualified on the results page or
discussed below.
Where applicable, all soil sample analysis are reported on a dry weight basis unless flagged with a "W"
qualifier.
The pH analysis associated with the sample(s) in this report was/were performed after the method
recommended 15 minute holding time.
If you have any questions regarding this report please contact the Shealy Project Manager listed on the
cover page.
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 2 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SHEALY ENVIRONMENTAL SERVICES, INC.
Sample Summary
Duke Energy
Lot Number: UF21017
Project Name: Sutton Excavation Soil Samples
Project Number: J19060496
Sample Number
Sample ID
Matrix
Date Sampled
Date Received
001
71 B-08-0-6
Solid
06/19/2019 1100
06/19/2019
002
71 B-08-24-30
Solid
06/19/2019 1105
06/19/2019
003
71 B-06-0-6
Solid
06/19/2019 1140
06/19/2019
004
71 B-06-24-30
Solid
06/19/2019 1145
06/19/2019
005
71 B-03-0-6
Solid
06/19/2019 1217
06/19/2019
006
71 B-03-24-30
Solid
06/19/2019 1221
06/19/2019
(6 samples)
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 3 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SHEALY ENVIRONMENTAL SERVICES, INC.
Detection Summary
Duke Energy
Lot Number: UF21017
Project Name: Sutton Excavation Soil Samples
Project Number: J19060496
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
001
71 B-08-0-6
Solid
Hexavalent Chromium
7199
0.21
J
mg/kg
9
001
71 B-08-0-6
Solid
Nitrate - N (soluble)
9056A
0.15
J
mg/kg
9
001
71 B-08-0-6
Solid
Nitrate - N (SPLP)
1312/9056A
0.63
mg/L
9
001
71 B-08-0-6
Solid
Sulfate (soluble)
9056A
12
mg/kg
9
001
71 B-08-0-6
Solid
Sulfate (SPLP)
1312/9056A
0.45
J
mg/L
9
001
71 B-08-0-6
Solid
Aluminum
6010D
700
mg/kg
10
001
71 B-08-0-6
Solid
Barium
6010D
1.8
mg/kg
10
001
71 B-08-0-6
Solid
Chromium
6010D
0.64
mg/kg
10
001
71 B-08-0-6
Solid
Copper
6010D
0.31
J
mg/kg
10
001
71 B-08-0-6
Solid
Iron
6010D
190
mg/kg
10
001
71 B-08-0-6
Solid
Manganese
6010D
1.1
mg/kg
10
001
71 B-08-0-6
Solid
Potassium
6010D
41
J
mg/kg
10
001
71 B-08-0-6
Solid
Strontium
6010D
1.3
mg/kg
10
001
71 B-08-0-6
Solid
Zinc
6010D
1.2
J
mg/kg
10
001
71 B-08-0-6
Solid
Aluminum
6010D
0.70
mg/L
11
001
71 B-08-0-6
Solid
Barium
6010D
0.017
J
mg/L
11
001
71 B-08-0-6
Solid
Boron
6010D
0.025
J
mg/L
11
001
71 B-08-0-6
Solid
Iron
6010D
0.15
mg/L
11
001
71 B-08-0-6
Solid
Sodium
6010D
3.0
J
mg/L
11
001
71 B-08-0-6
Solid
Strontium
6010D
0.0094
J
mg/L
11
001
71 B-08-0-6
Solid
Zinc
6010D
0.0055
J
mg/L
11
001
71 B-08-0-6
Solid
Antimony
6020B
0.52
J
ug/L
12
001
71 B-08-0-6
Solid
Selenium
6020B
1.9
J
ug/L
12
001
71 B-08-0-6
Solid
Arsenic
6020B
0.33
J
mg/kg
13
001
71 B-08-0-6
Solid
Lead
6020B
0.76
mg/kg
13
001
71 B-08-0-6
Solid
Selenium
6020E
0.53
J
mg/kg
13
001
71 B-08-0-6
Solid
Vanadium
6020E
0.93
J
mg/kg
13
002
71 B-08-24-30
Solid
Chloride (soluble)
9056A
3.4
J
mg/kg
14
002
71 B-08-24-30
Solid
Nitrate - N (soluble)
9056A
0.86
mg/kg
14
002
71 B-08-24-30
Solid
Nitrate - N (SPLP)
1312/9056A
0.33
mg/L
14
002
71 B-08-24-30
Solid
Sulfate (soluble)
9056A
66
mg/kg
14
002
71 B-08-24-30
Solid
Sulfate (SPLP)
1312/9056A
2.7
mg/L
14
002
71 B-08-24-30
Solid
Aluminum
6010D
850
mg/kg
15
002
71 B-08-24-30
Solid
Barium
6010D
1.6
mg/kg
15
002
71 B-08-24-30
Solid
Calcium
6010D
59
J
mg/kg
15
002
71 B-08-24-30
Solid
Chromium
6010D
0.74
mg/kg
15
002
71 B-08-24-30
Solid
Iron
6010D
170
mg/kg
15
002
71 B-08-24-30
Solid
Manganese
6010D
0.90
mg/kg
15
002
71 B-08-24-30
Solid
Potassium
6010D
44
J
mg/kg
15
002
71 B-08-24-30
Solid
Strontium
6010D
2.9
mg/kg
15
002
71 B-08-24-30
Solid
Zinc
6010D
1.4
J
mg/kg
15
002
71 B-08-24-30
Solid
Aluminum
6010D
1.4
mg/L
16
002
71 B-08-24-30
Solid
Barium
6010D
0.011
J
mg/L
16
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 4 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
uexection summary (Continued)
Lot Number: UF21017
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
002
71 B-08-24-30
Solid
Calcium
6010D
1.9
J
mg/L
16
002
71B-08-24-30
Solid
Iron
6010D
0.38
mg/L
16
002
71 B-08-24-30
Solid
Manganese
6010D
0.0020
J
mg/L
16
002
71 B-08-24-30
Solid
Sodium
6010D
1.3
J
mg/L
16
002
71 B-08-24-30
Solid
Strontium
6010D
0.067
mg/L
16
002
71 B-08-24-30
Solid
Zinc
6010D
0.0069
J
mg/L
16
002
71 B-08-24-30
Solid
Lead
6020B
0.74
J
ug/L
17
002
71 B-08-24-30
Solid
Selenium
6020E
3.5
J
ug/L
17
002
71 B-08-24-30
Solid
Vanadium
6020E
27
ug/L
17
002
71 B-08-24-30
Solid
Arsenic
6020B
0.29
J
mg/kg
18
002
71 B-08-24-30
Solid
Lead
6020B
0.73
mg/kg
18
002
71 B-08-24-30
Solid
Vanadium
6020B
4.1
mg/kg
18
003
71 B-06-0-6
Solid
Hexavalent Chromium
7199
0.22
J
mg/kg
19
003
71 B-06-0-6
Solid
Nitrate - N (soluble)
9056A
0.16
J
mg/kg
19
003
71 B-06-0-6
Solid
Nitrate - N (SPLP)
1312/9056A
0.21
mg/L
19
003
71 B-06-0-6
Solid
Aluminum
6010D
970
mg/kg
20
003
71 B-06-0-6
Solid
Barium
6010D
5.4
mg/kg
20
003
71 B-06-0-6
Solid
Calcium
6010D
130
J
mg/kg
20
003
71 B-06-0-6
Solid
Chromium
6010D
1.0
mg/kg
20
003
71 B-06-0-6
Solid
Copper
6010D
0.57
mg/kg
20
003
71 B-06-0-6
Solid
Iron
6010D
520
mg/kg
20
003
71 B-06-0-6
Solid
Magnesium
6010D
36
J
mg/kg
20
003
71 B-06-0-6
Solid
Manganese
6010D
3.1
mg/kg
20
003
71 B-06-0-6
Solid
Nickel
6010D
1.3
J
mg/kg
20
003
71 B-06-0-6
Solid
Potassium
6010D
48
J
mg/kg
20
003
71 B-06-0-6
Solid
Strontium
6010D
4.3
mg/kg
20
003
71 B-06-0-6
Solid
Zinc
6010D
3.7
mg/kg
20
003
71 B-06-0-6
Solid
Aluminum
6010D
6.4
mg/L
21
003
71 B-06-0-6
Solid
Barium
6010D
0.035
mg/L
21
003
71 B-06-0-6
Solid
Calcium
6010D
2.8
J
mg/L
21
003
71 B-06-0-6
Solid
Chromium
6010D
0.0041
J
mg/L
21
003
71 B-06-0-6
Solid
Iron
6010D
2.1
mg/L
21
003
71 B-06-0-6
Solid
Manganese
6010D
0.0053
J
mg/L
21
003
71 B-06-0-6
Solid
Nickel
6010D
0.0062
J
mg/L
21
003
71 B-06-0-6
Solid
Sodium
6010D
2.4
J
mg/L
21
003
71 B-06-0-6
Solid
Strontium
6010D
0.063
mg/L
21
003
71 B-06-0-6
Solid
Zinc
6010D
0.022
mg/L
21
003
71 B-06-0-6
Solid
Arsenic
6020B
6.1
ug/L
22
003
71 B-06-0-6
Solid
Lead
6020B
3.0
ug/L
22
003
71 B-06-0-6
Solid
Vanadium
6020B
33
ug/L
22
003
71 B-06-0-6
Solid
Arsenic
6020B
0.83
mg/kg
23
003
71 B-06-0-6
Solid
Beryllium
6020B
0.033
J
mg/kg
23
003
71 B-06-0-6
Solid
Cobalt
6020B
0.29
J
mg/kg
23
003
71 B-06-0-6
Solid
Lead
6020B
1.0
mg/kg
23
003
71 B-06-0-6
Solid
Vanadium
6020E
3.3
mg/kg
23
004
71 B-06-24-30
Solid
Chloride (soluble)
9056A
3.0
J
mg/kg
24
004
71 B-06-24-30
Solid
Chloride (SPLP)
1312/9056A
0.21
J
mg/L
24
004
71 B-06-24-30
Solid
Hexavalent Chromium
7199
0.29
J
mg/kg
24
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 5 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
uexection summary (Continued)
Lot Number: UF21017
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
004
71 B-06-24-30
Solid
Nitrate - N (soluble)
9056A
0.31
mg/kg
24
004
71 B-06-24-30
Solid
Nitrate - N (SPLP)
1312/9056A
0.21
mg/L
24
004
71 B-06-24-30
Solid
Sulfate (soluble)
9056A
19
mg/kg
24
004
71 B-06-24-30
Solid
Sulfate (SPLP)
1312/9056A
0.76
J
mg/L
24
004
71 B-06-24-30
Solid
Aluminum
601 OD
770
mg/kg
25
004
71 B-06-24-30
Solid
Barium
601 OD
1.6
mg/kg
25
004
71 B-06-24-30
Solid
Calcium
6010D
73
J
mg/kg
25
004
71 B-06-24-30
Solid
Chromium
601 OD
0.95
mg/kg
25
004
71B-06-24-30
Solid
Iron
6010D
290
mg/kg
25
004
71 B-06-24-30
Solid
Manganese
6010D
0.81
J
mg/kg
25
004
71 B-06-24-30
Solid
Strontium
6010D
2.9
mg/kg
25
004
71 B-06-24-30
Solid
Zinc
6010D
1.7
J
mg/kg
25
004
71 B-06-24-30
Solid
Aluminum
6010D
4.8
mg/L
26
004
71 B-06-24-30
Solid
Barium
6010D
0.018
J
mg/L
26
004
71 B-06-24-30
Solid
Boron
6010D
0.029
J
mg/L
26
004
71 B-06-24-30
Solid
Calcium
6010D
2.0
J
mg/L
26
004
71 B-06-24-30
Solid
Chromium
6010D
0.0041
J
mg/L
26
004
71B-06-24-30
Solid
Iron
6010D
0.76
mg/L
26
004
71 B-06-24-30
Solid
Manganese
6010D
0.0025
J
mg/L
26
004
71 B-06-24-30
Solid
Sodium
6010D
3.4
J
mg/L
26
004
71 B-06-24-30
Solid
Strontium
6010D
0.057
mg/L
26
004
71 B-06-24-30
Solid
Zinc
6010D
0.010
J
mg/L
26
004
71 B-06-24-30
Solid
Arsenic
6020B
3.0
ug/L
27
004
71 B-06-24-30
Solid
Lead
6020B
1.3
ug/L
27
004
71 B-06-24-30
Solid
Selenium
6020E
3.5
J
ug/L
27
004
71 B-06-24-30
Solid
Vanadium
6020E
17
ug/L
27
004
71 B-06-24-30
Solid
Arsenic
6020B
0.47
J
mg/kg
28
004
71 B-06-24-30
Solid
Lead
6020B
0.50
mg/kg
28
004
71 B-06-24-30
Solid
Vanadium
6020E
1.9
mg/kg
28
005
71 B-03-0-6
Solid
Nitrate - N (soluble)
9056A
0.14
J
mg/kg
29
005
71 B-03-0-6
Solid
Nitrate - N (SPLP)
1312/9056A
0.084
mg/L
29
005
71 B-03-0-6
Solid
Aluminum
6010D
1200
mg/kg
30
005
71 B-03-0-6
Solid
Barium
6010D
3.8
mg/kg
30
005
71 B-03-0-6
Solid
Calcium
6010D
120
J
mg/kg
30
005
71 B-03-0-6
Solid
Chromium
6010D
1.1
mg/kg
30
005
71 B-03-0-6
Solid
Copper
6010D
0.30
J
mg/kg
30
005
71 B-03-0-6
Solid
Iron
6010D
300
mg/kg
30
005
71 B-03-0-6
Solid
Magnesium
6010D
39
J
mg/kg
30
005
71 B-03-0-6
Solid
Manganese
6010D
3.1
mg/kg
30
005
71 B-03-0-6
Solid
Nickel
6010D
1.3
J
mg/kg
30
005
71 B-03-0-6
Solid
Potassium
6010D
49
J
mg/kg
30
005
71 B-03-0-6
Solid
Strontium
6010D
2.9
mg/kg
30
005
71 B-03-0-6
Solid
Zinc
6010D
4.2
mg/kg
30
005
71 B-03-0-6
Solid
Aluminum
6010D
7.5
mg/L
31
005
71 B-03-0-6
Solid
Barium
6010D
0.014
J
mg/L
31
005
71 B-03-0-6
Solid
Boron
6010D
0.030
J
mg/L
31
005
71 B-03-0-6
Solid
Calcium
6010D
4.0
J
mg/L
31
005
71 B-03-0-6
Solid
Chromium
6010D
0.0049
J
mg/L
31
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 6 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
uexection summary (Continued)
Lot Number: UF21017
Sample Sample ID
Matrix
Parameter
Method
Result
Q
Units
Page
005
71 B-03-0-6
Solid
Iron
6010D
2.2
mg/L
31
005
71 B-03-0-6
Solid
Manganese
6010D
0.0044
J
mg/L
31
005
71 B-03-0-6
Solid
Nickel
6010D
0.0068
J
mg/L
31
005
71 B-03-0-6
Solid
Sodium
6010D
4.2
J
mg/L
31
005
71 B-03-0-6
Solid
Strontium
6010D
0.055
mg/L
31
005
71 B-03-0-6
Solid
Zinc
6010D
0.029
mg/L
31
005
71 B-03-0-6
Solid
Arsenic
6020B
4.0
ug/L
32
005
71 B-03-0-6
Solid
Cobalt
6020B
1.3
J
ug/L
32
005
71 B-03-0-6
Solid
Lead
6020B
2.8
ug/L
32
005
71 B-03-0-6
Solid
Vanadium
6020B
44
ug/L
32
005
71 B-03-0-6
Solid
Arsenic
6020B
0.40
J
mg/kg
33
005
71 B-03-0-6
Solid
Cobalt
6020B
0.29
J
mg/kg
33
005
71 B-03-0-6
Solid
Lead
6020B
0.99
mg/kg
33
005
71 B-03-0-6
Solid
Vanadium
6020E
3.1
mg/kg
33
006
71 B-03-24-30
Solid
Chloride (soluble)
9056A
2.7
J
mg/kg
34
006
71 B-03-24-30
Solid
Nitrate - N (soluble)
9056A
0.22
J
mg/kg
34
006
71 B-03-24-30
Solid
Nitrate - N (SPLP)
1312/9056A
0.18
mg/L
34
006
71 B-03-24-30
Solid
Sulfate (soluble)
9056A
12
mg/kg
34
006
71 B-03-24-30
Solid
Sulfate (SPLP)
1312/9056A
0.43
J
mg/L
34
006
71 B-03-24-30
Solid
Aluminum
6010D
450
mg/kg
35
006
71 B-03-24-30
Solid
Barium
6010D
1.8
mg/kg
35
006
71 B-03-24-30
Solid
Calcium
6010D
65
J
mg/kg
35
006
71 B-03-24-30
Solid
Chromium
6010D
0.46
J
mg/kg
35
006
71B-03-24-30
Solid
Iron
6010D
90
mg/kg
35
006
71 B-03-24-30
Solid
Manganese
6010D
1.3
mg/kg
35
006
71 B-03-24-30
Solid
Strontium
6010D
1.6
mg/kg
35
006
71 B-03-24-30
Solid
Zinc
6010D
1.7
J
mg/kg
35
006
71 B-03-24-30
Solid
Aluminum
6010D
3.8
mg/L
36
006
71 B-03-24-30
Solid
Barium
6010D
0.0096
J
mg/L
36
006
71 B-03-24-30
Solid
Calcium
6010D
2.3
J
mg/L
36
006
71 B-03-24-30
Solid
Chromium
6010D
0.0030
J
mg/L
36
006
71 B-03-24-30
Solid
Iron
6010D
1.0
mg/L
36
006
71 B-03-24-30
Solid
Manganese
6010D
0.0022
J
mg/L
36
006
71 B-03-24-30
Solid
Sodium
6010D
2.5
J
mg/L
36
006
71 B-03-24-30
Solid
Strontium
6010D
0.035
mg/L
36
006
71 B-03-24-30
Solid
Zinc
6010D
0.017
J
mg/L
36
006
71 B-03-24-30
Solid
Arsenic
6020B
2.3
ug/L
37
006
71 B-03-24-30
Solid
Lead
6020B
1.3
ug/L
37
006
71 B-03-24-30
Solid
Vanadium
6020E
25
ug/L
37
006
71 B-03-24-30
Solid
Lead
6020B
0.47
mg/kg
38
006
71 B-03-24-30
Solid
Vanadium
6020E
1.1
J
mg/kg
38
(180 detections)
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 7 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-001
Description: 71 B-08-0-6 Matrix: Solid
Date Sampled:06/19/2019 1100 Project Name: Sutton Excavation Soil % Solids: 96.0 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/10/2019 2328 GMH
22340
1 1312
(Chloride (SP) 1312/9056A
1
07/09/2019 2135 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 0910 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/10/2019 2328 GMH
22342
1 1312
(Nitrate - N ) 1312/9056A
1
07/09/2019 2135 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0003 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/16/2019 2350 GMH
07/02/2019 1654 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/10/2019 2328 GMH
22339
1 1312
(Sulfate (SPL) 1312/9056A
1
07/09/2019 2135 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
ND
10
1.1
mg/kg
1
Chloride (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
0.21 J
1.0
0.21
mg/kg
1
Nitrate - N (soluble)
9056A
0.15 J
0.21
0.026
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.63
0.020
0.0050
mg/L
1
pH @ 22.4 ° C
9045D
4.9
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
12
10
5.2
mg/kg
1
Sulfate (SPLP)
1312/9056A
0.45 J
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 8 of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-001
Description: 71 B-08-0-6 Matrix: Solid
Date Sampled:06/19/2019 1100 Project Name: Sutton Excavation Soil % Solids: 96.0 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0047 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
700
18
6.6
mg/kg
1
Barium
7440-39-3
6010D
1.8
1.1
0.29
mg/kg
1
Boron
7440-42-8
6010D
ND
2.2
0.88
mg/kg
1
Calcium
7440-70-2
6010D
ND
220
27
mg/kg
1
Chromium
7440-47-3
6010D
0.64
0.44
0.11
mg/kg
1
Copper
7440-50-8
6010D
0.31 J
0.44
0.20
mg/kg
1
Iron
7439-89-6
6010D
190
4.4
2.0
mg/kg
1
Magnesium
7439-95-4
6010D
ND
220
27
mg/kg
1
Manganese
7439-96-5
6010D
1.1
0.66
0.26
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
1.8
0.44
mg/kg
1
Nickel
7440-02-0
6010D
ND
1.8
0.46
mg/kg
1
Potassium
7440-09-7
6010D
41 J
220
27
mg/kg
1
Sodium
7440-23-5
6010D
ND
220
27
mg/kg
1
Strontium
7440-24-6
6010D
1.3
0.88
0.22
mg/kg
1
Zinc
7440-66-6
6010D
1.2 J
2.2
0.55
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 9 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-001
Description: 71 B-08-0-6 Matrix: Solid
Date Sampled:06/19/2019 1100 Project Name: Sutton Excavation Soil % Solids: 96.0 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0415 LLL
7470A 1 07/02/2019 0103 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
0.70
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.017 J
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
0.025 J
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
ND
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
ND
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
0.15
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
ND
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
ND
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
3.0 J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.0094 J
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.0055 J
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 10 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-001
Description: 71 B-08-0-6 Matrix: Solid
Date Sampled:06/19/2019 1100 Project Name: Sutton Excavation Soil % Solids: 96.0 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301OA
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/03/2019 0448 BNW
Prep Date Batch
07/01/2019 1243 21278
Leachate Date
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
0.52 J
2.0
0.50
ug/L
1
Arsenic
7440-38-2 6020B
ND
2.0
1.3
ug/L
1
Beryllium
7440-41-7 6020B
ND
0.40
0.15
ug/L
1
Cadmium
7440-43-9 6020B
ND
0.50
0.13
ug/L
1
Cobalt
7440-48-4 6020B
ND
5.0
1.3
ug/L
1
Lead
7439-92-1 6020B
ND
1.0
0.25
ug/L
1
Selenium
7782-49-2 6020B
1.9 J
5.0
1.3
ug/L
1
Silver
7440-22-4 6020B
ND
1.0
0.25
ug/L
1
Thallium
7440-28-0 6020B
ND
0.50
0.15
ug/L
1
Vanadium
7440-62-2 6020B
ND
5.0
2.5
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 11 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-001
Description: 71 B-08-0-6 Matrix: Solid
Date Sampled:06/19/2019 1100 Project Name: Sutton Excavation Soil % Solids: 96.0 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
1 7471 B
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/11/2019 1555 BNW
7471 B 1 06/28/2019 1823 TJ W
Prep Date Batch
06/28/2019 0903 20447
06/27/2019 1855 20938
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
ND
0.44
0.18
mg/kg
1
Arsenic
7440-38-2 6020B
0.33 J
0.44
0.18
mg/kg
1
Beryllium
7440-41-7 6020B
ND
0.088
0.030
mg/kg
1
Cadmium
7440-43-9 6020B
ND
0.11
0.022
mg/kg
1
Cobalt
7440-48-4 6020B
ND
0.61
0.23
mg/kg
1
Lead
7439-92-1 6020B
0.76
0.22
0.060
mg/kg
1
Mercury
7439-97-6 7471B
ND
0.086
0.021
mg/kg
1
Selenium
7782-49-2 6020B
0.53 J
1.1
0.41
mg/kg
1
Silver
7440-22-4 6020B
ND
0.22
0.053
mg/kg
1
Thallium
7440-28-0 6020B
ND
0.11
0.026
mg/kg
1
Vanadium
7440-62-2 6020B
0.93 J
1.1
0.22
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 12 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-002
Description: 71 B-08-24-30 Matrix: Solid
Date Sampled:06/19/2019 1105 Project Name: Sutton Excavation Soil % Solids: 76.1 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/11/2019 0118 GMH
22340
1 1312
(Chloride (SP) 1312/9056A
1
07/09/2019 2223 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 0923 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/11/2019 0118 GMH
22342
1 1312
(Nitrate - N ) 1312/9056A
1
07/09/2019 2223 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0008 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/17/2019 0029 GMH
07/02/2019 1656 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/11/2019 0118 GMH
22339
1 1312
(Sulfate (SPL) 1312/9056A
1
07/09/2019 2223 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
3.4 J
13
1.3
mg/kg
1
Chloride (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
ND
1.3
0.26
mg/kg
1
Nitrate - N (soluble)
9056A
0.86
0.26
0.032
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.33
0.020
0.0050
mg/L
1
pH @ 22.3 ° C
9045D
5.7
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
66
13
6.6
mg/kg
1
Sulfate (SPLP)
1312/9056A
2.7
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 13 of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-002
Description: 71 B-08-24-30 Matrix: Solid
Date Sampled:06/19/2019 1105 Project Name: Sutton Excavation Soil % Solids: 76.1 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0050 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
850
24
8.9
mg/kg
1
Barium
7440-39-3
6010D
1.6
1.5
0.38
mg/kg
1
Boron
7440-42-8
6010D
ND
3.0
1.2
mg/kg
1
Calcium
7440-70-2
6010D
59 J
300
37
mg/kg
1
Chromium
7440-47-3
6010D
0.74
0.59
0.15
mg/kg
1
Copper
7440-50-8
6010D
ND
0.59
0.27
mg/kg
1
Iron
7439-89-6
6010D
170
5.9
2.7
mg/kg
1
Magnesium
7439-95-4
6010D
ND
300
37
mg/kg
1
Manganese
7439-96-5
6010D
0.90
0.89
0.35
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
2.4
0.59
mg/kg
1
Nickel
7440-02-0
6010D
ND
2.4
0.62
mg/kg
1
Potassium
7440-09-7
6010D
44 J
300
37
mg/kg
1
Sodium
7440-23-5
6010D
ND
300
37
mg/kg
1
Strontium
7440-24-6
6010D
2.9
1.2
0.30
mg/kg
1
Zinc
7440-66-6
6010D
1.4 J
3.0
0.74
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 14 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-002
Description: 71 B-08-24-30 Matrix: Solid
Date Sampled:06/19/2019 1105 Project Name: Sutton Excavation Soil % Solids: 76.1 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0418 LLL
7470A 1 07/02/2019 0106 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
1.4
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.011 J
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
ND
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
1.9 J
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
ND
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
0.38
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
0.0020 J
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
ND
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
1.3 J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.067
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.0069 J
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 15 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-002
Description: 71 B-08-24-30 Matrix: Solid
Date Sampled:06/19/2019 1105 Project Name: Sutton Excavation Soil % Solids: 76.1 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301OA
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/03/2019 0454 BNW
Prep Date Batch
07/01/2019 1243 21278
Leachate Date
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
ND
2.0
0.50
ug/L
1
Arsenic
7440-38-2 6020B
ND
2.0
1.3
ug/L
1
Beryllium
7440-41-7 6020B
ND
0.40
0.15
ug/L
1
Cadmium
7440-43-9 6020B
ND
0.50
0.13
ug/L
1
Cobalt
7440-48-4 6020B
ND
5.0
1.3
ug/L
1
Lead
7439-92-1 6020B
0.74 J
1.0
0.25
ug/L
1
Selenium
7782-49-2 6020B
3.5 J
5.0
1.3
ug/L
1
Silver
7440-22-4 6020B
ND
1.0
0.25
ug/L
1
Thallium
7440-28-0 6020B
ND
0.50
0.15
ug/L
1
Vanadium
7440-62-2 6020B
27
5.0
2.5
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 16 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-002
Description: 71 B-08-24-30 Matrix: Solid
Date Sampled:06/19/2019 1105 Project Name: Sutton Excavation Soil % Solids: 76.1 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
3050B
6020B
1 07/11/2019 1600 BNW
06/28/2019 0903 20447
1
7471 B
7471 B
1 06/28/2019 1836 TJ W
06/27/2019 1855 20938
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
Arsenic
7440-38-2
Beryllium
7440-41-7
Cadmium
7440-43-9
Cobalt
7440-48-4
Lead
7439-92-1
Mercury
7439-97-6
Selenium
7782-49-2
Silver
7440-22-4
Thallium
7440-28-0
Vanadium
7440-62-2
6020B
ND
0.59
0.24
mg/kg 1
6020B
0.29 J
0.59
0.24
mg/kg 1
6020B
ND
0.12
0.040
mg/kg 1
6020B
ND
0.15
0.030
mg/kg 1
6020B
ND
0.83
0.31
mg/kg 1
6020B
0.73
0.30
0.080
mg/kg 1
7471B
ND
0.098
0.024
mg/kg 1
6020B
ND
1.5
0.56
mg/kg 1
6020B
ND
0.30
0.071
mg/kg 1
6020B
ND
0.15
0.035
mg/kg 1
6020B
4.1
1.5
0.30
mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 17 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-003
Description: 71 B-06-0-6 Matrix: Solid
Date Sampled:06/19/2019 1140 Project Name: Sutton Excavation Soil % Solids: 94.4 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/11/2019 0140 GMH
22340
1 1312
(Chloride (SP) 1312/9056A
1
07/09/2019 2240 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 0936 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/11/2019 0140 GMH
22342
1 1312
(Nitrate - N ) 1312/9056A
1
07/09/2019 2240 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0015 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/17/2019 0042 GMH
07/02/2019 1658 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/11/2019 0140 GMH
22339
1 1312
(Sulfate (SPL) 1312/9056A
1
07/09/2019 2240 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
ND
11
1.1
mg/kg
1
Chloride (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
0.22 J
1.1
0.21
mg/kg
1
Nitrate - N (soluble)
9056A
0.16 J
0.21
0.026
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.21
0.020
0.0050
mg/L
1
pH @ 22.3 ° C
9045D
6.9
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
ND
11
5.3
mg/kg
1
Sulfate (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 1S of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-003
Description: 71 B-06-0-6 Matrix: Solid
Date Sampled:06/19/2019 1140 Project Name: Sutton Excavation Soil % Solids: 94.4 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0053 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result
Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
970
19
7.1
mg/kg
1
Barium
7440-39-3
6010D
5.4
1.2
0.31
mg/kg
1
Boron
7440-42-8
6010D
ND
2.4
0.95
mg/kg
1
Calcium
7440-70-2
6010D
130
J
240
30
mg/kg
1
Chromium
7440-47-3
6010D
1.0
0.47
0.12
mg/kg
1
Copper
7440-50-8
6010D
0.57
0.47
0.21
mg/kg
1
Iron
7439-89-6
6010D
520
4.7
2.2
mg/kg
1
Magnesium
7439-95-4
6010D
36
J
240
30
mg/kg
1
Manganese
7439-96-5
6010D
3.1
0.71
0.28
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
1.9
0.47
mg/kg
1
Nickel
7440-02-0
6010D
1.3
J
1.9
0.50
mg/kg
1
Potassium
7440-09-7
6010D
48
J
240
30
mg/kg
1
Sodium
7440-23-5
6010D
ND
240
30
mg/kg
1
Strontium
7440-24-6
6010D
4.3
0.95
0.24
mg/kg
1
Zinc
7440-66-6
6010D
3.7
2.4
0.59
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 19 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-003
Description: 71 B-06-0-6 Matrix: Solid
Date Sampled:06/19/2019 1140 Project Name: Sutton Excavation Soil % Solids: 94.4 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0421 LLL
7470A 1 07/02/2019 0109 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
6.4
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.035
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
ND
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
2.8 J
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
0.0041 J
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
2.1
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
0.0053 J
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
0.0062 J
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
2.4 J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.063
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.022
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 20 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-003
Description: 71 B-06-0-6 Matrix: Solid
Date Sampled:06/19/2019 1140 Project Name: Sutton Excavation Soil % Solids: 94.4 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch Leachate Date
1 1312/301OA 6020B 1 07/03/2019 0500 BNW 07/01/2019 1243 21278 06/25/2019 2235
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
6020B
ND
Arsenic
7440-38-2
6020B
6.1
Beryllium
7440-41-7
6020B
ND
Cadmium
7440-43-9
6020B
ND
Cobalt
7440-48-4
6020B
ND
Lead
7439-92-1
6020B
3.0
Selenium
7782-49-2
6020B
ND
Silver
7440-22-4
6020B
ND
Thallium
7440-28-0
6020B
ND
Vanadium
7440-62-2
6020B
33
2.0
0.50
ug/L 1
2.0
1.3
ug/L 1
0.40
0.15
ug/L 1
0.50
0.13
ug/L 1
5.0
1.3
ug/L 1
1.0
0.25
ug/L 1
5.0
1.3
ug/L 1
1.0
0.25
ug/L 1
0.50
0.15
ug/L 1
5.0
2.5
ug/L 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 21 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-003
Description: 71 B-06-0-6 Matrix: Solid
Date Sampled:06/19/2019 1140 Project Name: Sutton Excavation Soil % Solids: 94.4 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
3050B
6020B
1 07/11/2019 1606 BNW
06/28/2019 0903 20447
1
7471 B
7471 B
1 06/28/2019 1838 TJ W
06/27/2019 1855 20938
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
Arsenic
7440-38-2
Beryllium
7440-41-7
Cadmium
7440-43-9
Cobalt
7440-48-4
Lead
7439-92-1
Mercury
7439-97-6
Selenium
7782-49-2
Silver
7440-22-4
Thallium
7440-28-0
Vanadium
7440-62-2
6020B
ND
0.47
0.19
mg/kg 1
6020B
0.83
0.47
0.19
mg/kg 1
6020B
0.033 J
0.095
0.032
mg/kg 1
6020B
ND
0.12
0.024
mg/kg 1
6020B
0.29 J
0.66
0.25
mg/kg 1
6020B
1.0
0.24
0.065
mg/kg 1
7471B
ND
0.080
0.019
mg/kg 1
6020B
ND
1.2
0.45
mg/kg 1
6020B
ND
0.24
0.057
mg/kg 1
6020B
ND
0.12
0.028
mg/kg 1
6020B
3.3
1.2
0.24
mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 22 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-004
Description: 71 B-06-24-30 Matrix: Solid
Date Sampled:06/19/2019 1145 Project Name: Sutton Excavation Soil % Solids: 75.7 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/11/2019 0246 GMH
22340
1 1312
(Chloride (SP) 1312/9056A
1
07/09/2019 2256 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 0949 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/11/2019 0246 GMH
22342
1 1312
(Nitrate - N ) 1312/9056A
1
07/09/2019 2256 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0023 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/17/2019 0054 GMH
07/02/2019 1659 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/11/2019 0246 GMH
22339
1 1312
(Sulfate (SPL) 1312/9056A
1
07/09/2019 2256 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
3.0 J
13
1.3
mg/kg
1
Chloride (SPLP)
1312/9056A
0.21 J
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
0.29 J
1.3
0.26
mg/kg
1
Nitrate - N (soluble)
9056A
0.31
0.26
0.032
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.21
0.020
0.0050
mg/L
1
pH @ 22 ° C
9045D
6.8
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
19
13
6.6
mg/kg
1
Sulfate (SPLP)
1312/9056A
0.76 J
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 23 of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-004
Description: 71 B-06-24-30 Matrix: Solid
Date Sampled:06/19/2019 1145 Project Name: Sutton Excavation Soil % Solids: 75.7 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0056 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
770
23
8.5
mg/kg
1
Barium
7440-39-3
6010D
1.6
1.5
0.37
mg/kg
1
Boron
7440-42-8
6010D
ND
2.8
1.1
mg/kg
1
Calcium
7440-70-2
6010D
73 J
280
35
mg/kg
1
Chromium
7440-47-3
6010D
0.95
0.57
0.14
mg/kg
1
Copper
7440-50-8
6010D
ND
0.57
0.26
mg/kg
1
Iron
7439-89-6
6010D
290
5.7
2.6
mg/kg
1
Magnesium
7439-95-4
6010D
ND
280
35
mg/kg
1
Manganese
7439-96-5
6010D
0.81 J
0.85
0.34
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
2.3
0.57
mg/kg
1
Nickel
7440-02-0
6010D
ND
2.3
0.60
mg/kg
1
Potassium
7440-09-7
6010D
ND
280
35
mg/kg
1
Sodium
7440-23-5
6010D
ND
280
35
mg/kg
1
Strontium
7440-24-6
6010D
2.9
1.1
0.28
mg/kg
1
Zinc
7440-66-6
6010D
1.7 J
2.8
0.71
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 24 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-004
Description: 71 B-06-24-30 Matrix: Solid
Date Sampled:06/19/2019 1145 Project Name: Sutton Excavation Soil % Solids: 75.7 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0424 LLL
7470A 1 07/02/2019 0116 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result
Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
4.8
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.018
J
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
0.029
J
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
2.0
J
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
0.0041
J
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
0.76
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
0.0025
J
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
ND
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
3.4
J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.057
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.010
J
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 25 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-004
Description: 71 B-06-24-30 Matrix: Solid
Date Sampled:06/19/2019 1145 Project Name: Sutton Excavation Soil % Solids: 75.7 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301OA
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/03/2019 0506 BNW
Prep Date Batch
07/01/2019 1243 21278
Leachate Date
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
ND
2.0
0.50
ug/L
1
Arsenic
7440-38-2 6020B
3.0
2.0
1.3
ug/L
1
Beryllium
7440-41-7 6020B
ND
0.40
0.15
ug/L
1
Cadmium
7440-43-9 6020B
ND
0.50
0.13
ug/L
1
Cobalt
7440-48-4 6020B
ND
5.0
1.3
ug/L
1
Lead
7439-92-1 6020B
1.3
1.0
0.25
ug/L
1
Selenium
7782-49-2 6020B
3.5 J
5.0
1.3
ug/L
1
Silver
7440-22-4 6020B
ND
1.0
0.25
ug/L
1
Thallium
7440-28-0 6020B
ND
0.50
0.15
ug/L
1
Vanadium
7440-62-2 6020B
17
5.0
2.5
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 26 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-004
Description: 71 B-06-24-30 Matrix: Solid
Date Sampled:06/19/2019 1145 Project Name: Sutton Excavation Soil % Solids: 75.7 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
1 7471 B
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/11/2019 1612 BNW
7471 B 1 06/28/2019 1841 TJ W
Prep Date Batch
06/28/2019 0903 20447
06/27/2019 1855 20938
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
ND
0.57
0.23
mg/kg
1
Arsenic
7440-38-2 6020B
0.47 J
0.57
0.23
mg/kg
1
Beryllium
7440-41-7 6020B
ND
0.11
0.039
mg/kg
1
Cadmium
7440-43-9 6020B
ND
0.15
0.028
mg/kg
1
Cobalt
7440-48-4 6020B
ND
0.79
0.30
mg/kg
1
Lead
7439-92-1 6020B
0.50
0.28
0.077
mg/kg
1
Mercury
7439-97-6 7471B
ND
0.10
0.025
mg/kg
1
Selenium
7782-49-2 6020B
ND
1.5
0.54
mg/kg
1
Silver
7440-22-4 6020B
ND
0.28
0.068
mg/kg
1
Thallium
7440-28-0 6020B
ND
0.15
0.034
mg/kg
1
Vanadium
7440-62-2 6020B
1.9
1.5
0.28
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 27 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-005
Description: 71 B-03-0-6 Matrix: Solid
Date Sampled:06/19/2019 1217 Project Name: Sutton Excavation Soil % Solids: 90.2 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/11/2019 0308 GMH
22340
1 1312
(Chloride (SP) 1312/9056A
1
07/09/2019 2344 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 1002 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/11/2019 0308 GMH
22342
1 1312
(Nitrate - N ) 1312/9056A
1
07/09/2019 2344 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0024 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/17/2019 0107 GMH
07/02/2019 1702 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/11/2019 0308 GMH
22339
1 1312
(Sulfate (SPL) 1312/9056A
1
07/09/2019 2344 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
ND
11
1.1
mg/kg
1
Chloride (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
ND
1.1
0.22
mg/kg
1
Nitrate - N (soluble)
9056A
0.14 J
0.22
0.027
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.084
0.020
0.0050
mg/L
1
pH @ 22 ° C
9045D
7.2
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
ND
11
5.5
mg/kg
1
Sulfate (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 28 of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-005
Description: 71 B-03-0-6 Matrix: Solid
Date Sampled:06/19/2019 1217 Project Name: Sutton Excavation Soil % Solids: 90.2 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0059 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result
Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
1200
22
8.1
mg/kg
1
Barium
7440-39-3
6010D
3.8
1.4
0.35
mg/kg
1
Boron
7440-42-8
6010D
ND
2.7
1.1
mg/kg
1
Calcium
7440-70-2
6010D
120
J
270
34
mg/kg
1
Chromium
7440-47-3
6010D
1.1
0.54
0.14
mg/kg
1
Copper
7440-50-8
6010D
0.30
J
0.54
0.24
mg/kg
1
Iron
7439-89-6
6010D
300
5.4
2.5
mg/kg
1
Magnesium
7439-95-4
6010D
39
J
270
34
mg/kg
1
Manganese
7439-96-5
6010D
3.1
0.81
0.32
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
2.2
0.54
mg/kg
1
Nickel
7440-02-0
6010D
1.3
J
2.2
0.57
mg/kg
1
Potassium
7440-09-7
6010D
49
J
270
34
mg/kg
1
Sodium
7440-23-5
6010D
ND
270
34
mg/kg
1
Strontium
7440-24-6
6010D
2.9
1.1
0.27
mg/kg
1
Zinc
7440-66-6
6010D
4.2
2.7
0.68
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 29 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-005
Description: 71 B-03-0-6 Matrix: Solid
Date Sampled:06/19/2019 1217 Project Name: Sutton Excavation Soil % Solids: 90.2 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0427 LLL
7470A 1 07/02/2019 0119 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result
Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
7.5
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.014
J
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
0.030
J
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
4.0
J
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
0.0049
J
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
2.2
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
0.0044
J
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
0.0068
J
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
4.2
J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.055
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.029
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 30 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-005
Description: 71 B-03-0-6 Matrix: Solid
Date Sampled:06/19/2019 1217 Project Name: Sutton Excavation Soil % Solids: 90.2 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301OA
Analytical Method Dilution Analysis Date Analyst
6020B 1 07/03/2019 0512 BNW
Prep Date Batch
07/01/2019 1243 21278
Leachate Date
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Antimony
7440-36-0 6020B
ND
2.0
0.50
ug/L
1
Arsenic
7440-38-2 6020B
4.0
2.0
1.3
ug/L
1
Beryllium
7440-41-7 6020B
ND
0.40
0.15
ug/L
1
Cadmium
7440-43-9 6020B
ND
0.50
0.13
ug/L
1
Cobalt
7440-48-4 6020B
1.3 J
5.0
1.3
ug/L
1
Lead
7439-92-1 6020B
2.8
1.0
0.25
ug/L
1
Selenium
7782-49-2 6020B
ND
5.0
1.3
ug/L
1
Silver
7440-22-4 6020B
ND
1.0
0.25
ug/L
1
Thallium
7440-28-0 6020B
ND
0.50
0.15
ug/L
1
Vanadium
7440-62-2 6020B
44
5.0
2.5
ug/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 31 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-005
Description: 71 B-03-0-6 Matrix: Solid
Date Sampled:06/19/2019 1217 Project Name: Sutton Excavation Soil % Solids: 90.2 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
3050B
6020B
1 07/11/2019 1618 BNW
06/28/2019 0903 20447
1
7471 B
7471 B
1 06/28/2019 1843 TJ W
06/27/2019 1855 20938
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
Arsenic
7440-38-2
Beryllium
7440-41-7
Cadmium
7440-43-9
Cobalt
7440-48-4
Lead
7439-92-1
Mercury
7439-97-6
Selenium
7782-49-2
Silver
7440-22-4
Thallium
7440-28-0
Vanadium
7440-62-2
6020B
ND
0.54
0.22
mg/kg 1
6020B
0.40 J
0.54
0.22
mg/kg 1
6020B
ND
0.11
0.037
mg/kg 1
6020B
ND
0.14
0.027
mg/kg 1
6020B
0.29 J
0.76
0.28
mg/kg 1
6020B
0.99
0.27
0.074
mg/kg 1
7471B
ND
0.081
0.020
mg/kg 1
6020B
ND
1.4
0.51
mg/kg 1
6020B
ND
0.27
0.065
mg/kg 1
6020B
ND
0.14
0.032
mg/kg 1
6020B
3.1
1.4
0.27
mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 32 of 97

11-----nir nnn_mafnic
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-006
Description: 71 B-03-24-30 Matrix: Solid
Date Sampled:06/19/2019 1221 Project Name: Sutton Excavation Soil % Solids: 81.5 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
Analytical Method
Dilution
Analysis Date Analyst
Prep Date
Batch
Leachate Date
1
(Chloride (so) 9056A
1
07/11/2019 2247 GMH
22399
1 1312
(Chloride (SP) 1312/9056A
1
07/10/2019 0001 GMH
22104
06/25/2019 2235
1 3060A
(Hexavalent C) 7199
1
07/15/2019 1015 GMH
07/10/2019 1640 21615
1
(Nitrate - N ) 9056A
1
07/11/2019 2247 GMH
22402
1 1312
(Nitrate - N ) 1312/9056A
1
07/10/2019 0001 GMH
22107
06/25/2019 2235
1
(pH) 9045D
1
07/11/2019 0030 HET
22172
1 1312
(SPLP Hexaval) 7199
1
07/17/2019 0146 GMH
07/02/2019 1704 21440
06/25/2019 2235
1
(Sulfate (Sol) 9056A
1
07/11/2019 2247 GMH
22394
1 1312
(Sulfate (SPL) 1312/9056A
1
07/10/2019 0001 GMH
22102
06/25/2019 2235
CAS Analytical
Parameter
Number Method
Result Q
LOQ
DL
Units
Run
Chloride (soluble)
9056A
2.7 J
12
1.2
mg/kg
1
Chloride (SPLP)
1312/9056A
ND
1.0
0.20
mg/L
1
Hexavalent Chromium
18540-29-9 7199
ND
1.2
0.25
mg/kg
1
Nitrate - N (soluble)
9056A
0.22 J
0.25
0.030
mg/kg
1
Nitrate - N (SPLP)
1312/9056A
0.18
0.020
0.0050
mg/L
1
pH @ 22.1 ° C
9045D
7.1
su
1
SPLP Hexavalent Chromium
18540-29-9 7199
ND
0.020
0.012
mg/L
1
Sulfate (soluble)
9056A
12
12
6.1
mg/kg
1
Sulfate (SPLP)
1312/9056A
0.43 J
1.0
0.20
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 33 of 97

lf'P_AFC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-006
Description: 71 B-03-24-30 Matrix: Solid
Date Sampled:06/19/2019 1221 Project Name: Sutton Excavation Soil % Solids: 81.5 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 3050B
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/09/2019 0102 LLL
Prep Date Batch
06/28/2019 0903 20444
CAS
Analytical
Parameter
Number
Method
Result Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
450
19
7.2
mg/kg
1
Barium
7440-39-3
6010D
1.8
1.3
0.31
mg/kg
1
Boron
7440-42-8
6010D
ND
2.4
0.97
mg/kg
1
Calcium
7440-70-2
6010D
65 J
240
30
mg/kg
1
Chromium
7440-47-3
6010D
0.46 J
0.48
0.12
mg/kg
1
Copper
7440-50-8
6010D
ND
0.48
0.22
mg/kg
1
Iron
7439-89-6
6010D
90
4.8
2.2
mg/kg
1
Magnesium
7439-95-4
6010D
ND
240
30
mg/kg
1
Manganese
7439-96-5
6010D
1.3
0.72
0.29
mg/kg
1
Molybdenum
7439-98-7
6010D
ND
1.9
0.48
mg/kg
1
Nickel
7440-02-0
6010D
ND
1.9
0.51
mg/kg
1
Potassium
7440-09-7
6010D
ND
240
30
mg/kg
1
Sodium
7440-23-5
6010D
ND
240
30
mg/kg
1
Strontium
7440-24-6
6010D
1.6
0.97
0.24
mg/kg
1
Zinc
7440-66-6
6010D
1.7 J
2.4
0.60
mg/kg
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 34 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-006
Description: 71 B-03-24-30 Matrix: Solid
Date Sampled:06/19/2019 1221 Project Name: Sutton Excavation Soil % Solids: 81.5 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method
1 1312/301 OA
1 1312/7470A
Analytical Method Dilution Analysis Date Analyst
6010D 1 07/05/2019 0436 LLL
7470A 1 07/02/2019 0121 JMH
Prep Date Batch
07/01/2019 1243 21277
06/30/2019 1411 21192
Leachate Date
06/25/2019 2235
06/25/2019 2235
CAS
Analytical
Parameter
Number
Method
Result
Q
LOQ
DL
Units
Run
Aluminum
7429-90-5
6010D
3.8
0.40
0.10
mg/L
1
Barium
7440-39-3
6010D
0.0096
J
0.025
0.0031
mg/L
1
Boron
7440-42-8
6010D
ND
0.050
0.020
mg/L
1
Calcium
7440-70-2
6010D
2.3
J
5.0
0.63
mg/L
1
Chromium
7440-47-3
6010D
0.0030
J
0.010
0.0013
mg/L
1
Copper
7440-50-8
6010D
ND
0.010
0.0020
mg/L
1
Iron
7439-89-6
6010D
1.0
0.10
0.040
mg/L
1
Magnesium
7439-95-4
6010D
ND
5.0
0.63
mg/L
1
Manganese
7439-96-5
6010D
0.0022
J
0.015
0.0019
mg/L
1
Mercury
7439-97-6
7470A
ND
0.00020
0.000091
mg/L
1
Molybdenum
7439-98-7
6010D
ND
0.040
0.0050
mg/L
1
Nickel
7440-02-0
6010D
ND
0.040
0.0050
mg/L
1
Potassium
7440-09-7
6010D
ND
5.0
0.63
mg/L
1
Sodium
7440-23-5
6010D
2.5
J
5.0
0.63
mg/L
1
Strontium
7440-24-6
6010D
0.035
0.010
0.0025
mg/L
1
Zinc
7440-66-6
6010D
0.017
J
0.020
0.0025
mg/L
1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 35 of 97

''" P Mpf=1c
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-006
Description: 71 B-03-24-30 Matrix: Solid
Date Sampled:06/19/2019 1221 Project Name: Sutton Excavation Soil % Solids: 81.5 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch Leachate Date
1 1312/301OA 6020B 1 07/03/2019 0518 BNW 07/01/2019 1243 21278 06/25/2019 2235
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
6020B
ND
Arsenic
7440-38-2
6020B
2.3
Beryllium
7440-41-7
6020B
ND
Cadmium
7440-43-9
6020B
ND
Cobalt
7440-48-4
6020B
ND
Lead
7439-92-1
6020B
1.3
Selenium
7782-49-2
6020B
ND
Silver
7440-22-4
6020B
ND
Thallium
7440-28-0
6020B
ND
Vanadium
7440-62-2
6020B
25
2.0
0.50
ug/L 1
2.0
1.3
ug/L 1
0.40
0.15
ug/L 1
0.50
0.13
ug/L 1
5.0
1.3
ug/L 1
1.0
0.25
ug/L 1
5.0
1.3
ug/L 1
1.0
0.25
ug/L 1
0.50
0.15
ug/L 1
5.0
2.5
ug/L 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 36 of 97

lrp_MC
DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Client: Duke Energy Laboratory ID: UF21017-006
Description: 71 B-03-24-30 Matrix: Solid
Date Sampled:06/19/2019 1221 Project Name: Sutton Excavation Soil % Solids: 81.5 06/22/2019 0135
Date Received:06/19/2019 Project Number: J19060496
Run
Prep Method
Analytical Method
Dilution Analysis Date Analyst
Prep Date Batch
1
3050B
6020B
1 07/11/2019 1624 BNW
06/28/2019 0903 20447
1
7471 B
7471 B
1 06/28/2019 1846 TJ W
06/27/2019 1855 20938
CAS Analytical
Parameter Number Method Result Q LOQ DL Units Run
Antimony
7440-36-0
Arsenic
7440-38-2
Beryllium
7440-41-7
Cadmium
7440-43-9
Cobalt
7440-48-4
Lead
7439-92-1
Mercury
7439-97-6
Selenium
7782-49-2
Silver
7440-22-4
Thallium
7440-28-0
Vanadium
7440-62-2
6020B
ND
0.48
0.19
mg/kg 1
6020B
ND
0.48
0.19
mg/kg 1
6020B
ND
0.097
0.033
mg/kg 1
6020B
ND
0.13
0.024
mg/kg 1
6020B
ND
0.68
0.25
mg/kg 1
6020B
0.47
0.24
0.066
mg/kg 1
7471 B
ND
0.097
0.023
mg/kg 1
6020B
ND
1.3
0.46
mg/kg 1
6020B
ND
0.24
0.058
mg/kg 1
6020B
ND
0.13
0.029
mg/kg 1
6020B
1.1 J
1.3
0.24
mg/kg 1
LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure
ND = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure
H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 37 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
QC Summary
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 38 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ21440-001 Matrix: Solid
Batch: 21440 Prep Method: 1312
Analytical Method: 7199 Prep Date: 07/02/2019 1654 Leachate Date: 06/25/2019 2235
Parameter Result Q Dil LOQ DL Units Analysis Date
SPLP Hexavalent Chromium ND 1 0.020 0.012 mg/L 07/12/2019 1036
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 39 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ21440-002
Matrix: Solid
Batch: 21440
Prep Method: 1312
Analytical Method: 7199
Prep Date: 07/02/2019 1654
Leachate Date: 06/25/2019 2235
Spike
Amount
Result
% Rec
Parameter
(mg/L)
(mg/L) Q Dil % Rec
Limit Analysis Date
SPLP Hexavalent Chromium
0.010
0.0089 1 89
80-120 07/12/2019 0629
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 40 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ21615-001 Matrix: Solid
Batch: 21615 Prep Method: 3060A
Analytical Method: 7199 Prep Date: 07/10/2019 1640
Parameter Result Q Dil LOQ DL Units Analysis Date
Hexavalent Chromium ND 1 1.0 0.20 mg/kg 07/15/2019 0159
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 41 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ21615-002 Matrix: Solid
Batch: 21615 Prep Method: 3060A
Analytical Method: 7199 Prep Date: 07/10/2019 1640
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Hexavalent Chromium 10 9.7 1 97 80-120 07/15/2019 0212
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 42 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22102-001 Matrix: Solid
Batch: 22102 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Parameter Result Q Dil LOQ DL Units Analysis Date
Sulfate (SPLP) ND 1 1.0 0.20 mg/L 07/09/2019 1732
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 43 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22102-002 Matrix: Solid
Batch: 22102 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Spike
Amount Result % Rec
Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date
Sulfate (SPLP) 20 19 1 93 80-120 07/09/2019 1748
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 44 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS
Matrix: Solid
Batch: 22102
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil
% Rec Limit Analysis Date
Sulfate (SPLP)
0.45
20
19 1
94 80-120 07/09/2019 2151
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 45 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD
Matrix: Solid
Batch: 22102
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec % RPD
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil % Rec
% RPD Limit Limit Analysis Date
Sulfate (SPLP)
0.45
20
20 1 96
1.5 80-120 20 07/09/2019 2207
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 46 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22104-001 Matrix: Solid
Batch: 22104 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Parameter Result Q Dil LOQ DL Units Analysis Date
Chloride (SPLP) ND 1 1.0 0.20 mg/L 07/09/2019 1732
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 47 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22104-002 Matrix: Solid
Batch: 22104 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Spike
Amount Result % Rec
Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date
Chloride (SPLP) 20 20 1 99 80-120 07/09/2019 1748
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 48 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS
Matrix: Solid
Batch: 22104
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil
% Rec Limit Analysis Date
Chloride (SPLP)
ND
20
19 1
96 80-120 07/09/2019 2151
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 49 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD
Matrix: Solid
Batch: 22104
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec % RPD
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil % Rec
% RPD Limit Limit Analysis Date
Chloride (SPLP)
ND
20
19 1 97
1.0 80-120 20 07/09/2019 2207
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 50 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22107-001 Matrix: Solid
Batch: 22107 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Parameter Result Q Dil LOQ DL Units Analysis Date
Nitrate - N (SPLP) ND 1 0.020 0.0050 mg/L 07/09/2019 1732
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 51 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22107-002 Matrix: Solid
Batch: 22107 Prep Method: 1312
Analytical Method: 1312/9056A Leachate Date: 06/25/2019 2235
Spike
Amount Result % Rec
Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date
Nitrate - N (SPLP) 0.80 0.81 1 101 80-120 07/09/2019 1748
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 52 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS
Matrix: Solid
Batch: 22107
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil
% Rec Limit Analysis Date
Nitrate - N (SPLP)
0.63
0.80
1.4 1
96 80-120 07/09/2019 2151
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 53 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD
Matrix: Solid
Batch: 22107
Prep Method: 1312
Analytical Method: 1312/9056A
Leachate Date: 06/25/2019 2235
Sample
Spike
Amount
Amount
Result
% Rec % RPD
Parameter
(mg/L)
(mg/L)
(mg/L) Q Dil % Rec
% RPD Limit Limit Analysis Date
Nitrate - N (SPLP)
0.63
0.80
1.4 1 96
0.00 80-120 20 07/09/2019 2207
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 54 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - Duplicate
Sample ID: UF21017-001DU Matrix: Solid
Batch: 22172
Analytical Method: 9045D
Sample
Amount Result % RPD
Parameter (su) (mg/L) Q Dil % RPD Limit Analysis Date
pH @ 22.2 ° C 4.9 4.9000 1 1.0 20 07/11/2019 0006
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 55 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22339-001 Matrix: Solid
Batch:22339
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Sulfate (soluble) ND 1 10 5.0 mg/kg 07/10/2019 1626
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 56 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22339-002 Matrix: Solid
Batch:22339
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Sulfate (soluble) 20 21 1 103 80-120 07/10/2019 1651
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 57 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS Matrix: Solid
Batch:22339
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Sulfate (soluble) 12 210 230 1 103 80-120 07/11/2019 0034
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 58 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD Matrix: Solid
Batch:22339
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Sulfate (soluble) 12 210 230 1 104 0.29 80-120 20 07/11/2019 0056
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 59 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-003MS Matrix: Solid
Batch:22339
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Sulfate (soluble) ND 210 220 1 102 80-120 07/11/2019 0202
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 60 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-003MD Matrix: Solid
Batch:22339
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Sulfate (soluble) ND 210 210 1 99 2.8 80-120 20 07/11/2019 0224
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 61 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22340-001 Matrix: Solid
Batch:22340
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Chloride (soluble) ND 1 10 1.0 mg/kg 07/10/2019 1626
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 62 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22340-002 Matrix: Solid
Batch:22340
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Chloride (soluble) 20 20 1 100 80-120 07/10/2019 1651
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 63 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS Matrix: Solid
Batch:22340
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Chloride (soluble) ND 210 210 1 101 80-120 07/11/2019 0034
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 64 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD Matrix: Solid
Batch:22340
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Chloride (soluble) ND 210 210 1 101 0.78 80-120 20 07/11/2019 0056
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 65 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-003MS Matrix: Solid
Batch:22340
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Chloride (soluble) ND 210 220 1 103 80-120 07/11/2019 0202
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 66 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-003MD Matrix: Solid
Batch:22340
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Chloride (soluble) ND 210 210 1 100 2.3 80-120 20 07/11/2019 0224
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 67 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22342-001 Matrix: Solid
Batch:22342
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Nitrate - N (soluble) ND 1 0.20 0.025 mg/kg 07/10/2019 1626
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 68 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22342-002 Matrix: Solid
Batch:22342
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Nitrate - N (soluble) 0.80 0.79 1 99 80-120 07/10/2019 1651
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 69 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-001MS Matrix: Solid
Batch:22342
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Nitrate - N (soluble) 0.15 8.3 8.2 1 97 80-120 07/11/2019 0034
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 70 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-001MD Matrix: Solid
Batch:22342
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Nitrate - N (soluble) 0.15 8.3 8.3 1 98 1.5 80-120 20 07/11/2019 0056
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 71 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MS
Sample ID: UF21017-003MS Matrix: Solid
Batch:22342
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Nitrate - N (soluble) 0.16 8.5 8.6 1 99 80-120 07/11/2019 0202
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 72 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MSD
Sample ID: UF21017-003MD Matrix: Solid
Batch:22342
Analytical Method: 9056A
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Nitrate - N (soluble) 0.16 8.5 8.4 1 98 1.4 80-120 20 07/11/2019 0224
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 73 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22394-001 Matrix: Solid
Batch: 22394
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Sulfate (soluble) ND 1 10 5.0 mg/kg 07/11/2019 1800
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 74 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22394-002 Matrix: Solid
Batch: 22394
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Sulfate (soluble) 20 21 1 107 80-120 07/11/2019 1822
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 75 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22399-001 Matrix: Solid
Batch: 22399
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Chloride (soluble) ND 1 10 1.0 mg/kg 07/11/2019 1800
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 76 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22399-002 Matrix: Solid
Batch: 22399
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Chloride (soluble) 20 21 1 104 80-120 07/11/2019 1822
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 77 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - MB
Sample ID: UQ22402-001 Matrix: Solid
Batch:22402
Analytical Method: 9056A
Parameter Result Q Dil LOQ DL Units Analysis Date
Nitrate - N (soluble) ND 1 0.20 0.025 mg/kg 07/15/2019 1554
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 78 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Inorganic non-metals - LCS
Sample ID: UQ22402-002 Matrix: Solid
Batch:22402
Analytical Method: 9056A
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Nitrate - N (soluble) 0.80 0.83 1 104 80-120 07/11/2019 1822
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 79 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-AES - MB
Sample ID: UQ20444-001 Matrix: Solid
Batch:20444 Prep Method: 3050E
Analytical Method: 6010D Prep Date: 06/28/2019 903
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Aluminum
ND
1
20
7.5
mg/kg
07/09/2019 0010
Barium
ND
1
1.3
0.33
mg/kg
07/09/2019 0010
Boron
ND
1
2.5
1.0
mg/kg
07/09/2019 0010
Calcium
ND
1
250
31
mg/kg
07/09/2019 0010
Chromium
ND
1
0.50
0.13
mg/kg
07/09/2019 0010
Copper
ND
1
0.50
0.23
mg/kg
07/09/2019 0010
Iron
ND
1
5.0
2.3
mg/kg
07/09/2019 0010
Magnesium
ND
1
250
31
mg/kg
07/09/2019 0010
Manganese
ND
1
0.75
0.30
mg/kg
07/09/2019 0010
Molybdenum
ND
1
2.0
0.50
mg/kg
07/09/2019 0010
Nickel
ND
1
2.0
0.53
mg/kg
07/09/2019 0010
Potassium
ND
1
250
31
mg/kg
07/09/2019 0010
Sodium
ND
1
250
31
mg/kg
07/09/2019 0010
Strontium
ND
1
1.0
0.25
mg/kg
07/09/2019 0010
Zinc
ND
1
2.5
0.63
mg/kg
07/09/2019 0010
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 80 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-AES - LCS
Sample ID: UQ20444-002
Matrix:
Solid
Batch:20444
Prep Method:
3050E
Analytical Method: 6010D
Prep Date: 06/28/2019 903
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg)
Q Dil
% Rec
Limit
Analysis Date
Aluminum
1000
1100
2
109
80-120
07/09/2019 0013
Barium
500
520
2
105
80-120
07/09/2019 0013
Boron
50
47
2
95
80-120
07/09/2019 0013
Calcium
2000
2100
2
103
80-120
07/09/2019 0013
Chromium
250
260
2
104
80-120
07/09/2019 0013
Copper
100
100
2
103
80-120
07/09/2019 0013
Iron
1000
1100
2
111
80-120
07/09/2019 0013
Magnesium
2000
2000
2
102
80-120
07/09/2019 0013
Manganese
100
110
2
107
80-120
07/09/2019 0013
Molybdenum
100
100
2
102
80-120
07/09/2019 0013
Nickel
100
110
2
107
80-120
07/09/2019 0013
Potassium
2000
2000
2
102
80-120
07/09/2019 0013
Sodium
2000
2200
2
109
80-120
07/09/2019 0013
Strontium
50
51
2
102
80-120
07/09/2019 0013
Zinc
100
110
2
105
80-120
07/09/2019 0013
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 81 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - MB
Sample ID: UQ20447-001 Matrix: Solid
Batch:20447 Prep Method: 3050E
Analytical Method: 6020B Prep Date: 06/28/2019 903
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Antimony
ND
1
0.50
0.20
mg/kg
07/11/20191449
Arsenic
ND
1
0.50
0.20
mg/kg
07/11/20191449
Beryllium
ND
1
0.10
0.034
mg/kg
07/11/20191449
Cadmium
ND
1
0.13
0.025
mg/kg
07/11/20191449
Cobalt
ND
1
0.70
0.26
mg/kg
07/11/20191449
Lead
ND
1
0.25
0.068
mg/kg
07/11/20191449
Selenium
ND
1
1.3
0.47
mg/kg
07/11/20191449
Silver
ND
1
0.25
0.060
mg/kg
07/11/20191449
Thallium
ND
1
0.13
0.030
mg/kg
07/11/20191449
Vanadium
ND
1
1.3
0.25
mg/kg
07/11/20191449
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 82 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - LCS
Sample ID: UQ20447-002
Matrix: Solid
Batch:20447
Prep Method: 3050E
Analytical Method: 6020B
Prep Date: 06/28/2019 903
Spike
Amount
Result
% Rec
Parameter
(mg/kg)
(mg/kg)
Q Dil % Rec
Limit
Analysis Date
Antimony
50
52
1 103
80-120
07/11/20191455
Arsenic
50
52
1 105
80-120
07/11/20191455
Beryllium
50
52
1 105
80-120
07/11/20191455
Cadmium
50
50
1 99
80-120
07/11/20191455
Cobalt
50
53
1 106
80-120
07/11/20191455
Lead
50
50
1 100
80-120
07/11/20191455
Selenium
50
47
1 93
80-120
07/11/20191455
Silver
50
54
1 107
80-120
07/11/20191455
Thallium
50
47
1 95
80-120
07/11/20191455
Vanadium
50
53
1 106
80-120
07/11/20191455
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 83 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - MB
Sample ID: UQ21277-001 Matrix: Solid
Batch: 21277 Prep Method: 1312/301OA
Analytical Method: 6010D Prep Date: 07/01/2019 1243 Leachate Date: 06/25/2019 2235
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Aluminum
ND
1
4.0
1.0
mg/L
07/05/2019 0336
Barium
ND
1
0.25
0.031
mg/L
07/05/2019 0336
Boron
ND
1
0.50
0.20
mg/L
07/05/2019 0336
Calcium
ND
1
50
6.3
mg/L
07/05/2019 0336
Chromium
ND
1
0.10
0.013
mg/L
07/05/2019 0336
Copper
ND
1
0.10
0.020
mg/L
07/05/2019 0336
Iron
ND
1
1.0
0.40
mg/L
07/05/2019 0336
Magnesium
ND
1
50
6.3
mg/L
07/05/2019 0336
Manganese
ND
1
0.15
0.019
mg/L
07/05/2019 0336
Molybdenum
ND
1
0.40
0.050
mg/L
07/05/2019 0336
Nickel
ND
1
0.40
0.050
mg/L
07/05/2019 0336
Potassium
ND
1
50
6.3
mg/L
07/05/2019 0336
Sodium
ND
1
50
6.3
mg/L
07/05/2019 0336
Strontium
ND
1
0.10
0.025
mg/L
07/05/2019 0336
Zinc
ND
1
0.20
0.025
mg/L
07/05/2019 0336
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 84 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - LCS
Sample ID: UQ21277-002
Matrix:
Solid
Batch: 21277
Prep Method:
1312/3010A
Analytical Method: 6010D
Prep Date: 07/01/2019 1243
Leachate Date:
06/25/2019 2235
Spike
Amount
Result
% Rec
Parameter
(mg/L)
(mg/L)
Q Dil
% Rec
Limit
Analysis Date
Aluminum
20
22
2
108
80-120
07/05/2019 0339
Barium
10
10
2
101
80-120
07/05/2019 0339
Boron
1.0
0.96
2
96
80-120
07/05/2019 0339
Calcium
40
41
2
104
80-120
07/05/2019 0339
Chromium
5.0
5.0
2
100
80-120
07/05/2019 0339
Copper
2.0
2.0
2
99
80-120
07/05/2019 0339
Iron
20
22
2
111
80-120
07/05/2019 0339
Magnesium
40
41
2
104
80-120
07/05/2019 0339
Manganese
2.0
2.1
2
103
80-120
07/05/2019 0339
Molybdenum
2.0
2.0
2
99
80-120
07/05/2019 0339
Nickel
2.0
2.1
2
104
80-120
07/05/2019 0339
Potassium
40
40
2
100
80-120
07/05/2019 0339
Sodium
40
42
2
105
80-120
07/05/2019 0339
Strontium
1.0
1.0
2
100
80-120
07/05/2019 0339
Zinc
2.0
2.1
2
104
80-120
07/05/2019 0339
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 85 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - MB
Sample ID: UQ21278-001 Matrix: Solid
Batch: 21278 Prep Method: 1312/301OA
Analytical Method: 6020B Prep Date: 07/01/2019 1243 Leachate Date: 06/25/2019 2235
Parameter
Result Q
Dil
LOQ
DL
Units
Analysis Date
Antimony
ND
1
20
5.0
ug/L
07/03/2019 0332
Arsenic
ND
1
20
13
ug/L
07/03/2019 0332
Beryllium
ND
1
4.0
1.5
ug/L
07/03/2019 0332
Cadmium
ND
1
5.0
1.3
ug/L
07/03/2019 0332
Cobalt
ND
1
50
13
ug/L
07/03/2019 0332
Lead
ND
1
10
2.5
ug/L
07/03/2019 0332
Selenium
ND
1
50
13
ug/L
07/03/2019 0332
Silver
ND
1
10
2.5
ug/L
07/03/2019 0332
Thallium
ND
1
5.0
1.5
ug/L
07/03/2019 0332
Vanadium
ND
1
50
25
ug/L
07/03/2019 0332
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 86 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - LCS
Sample ID: UQ21278-002
Matrix:
Solid
Batch: 21278
Prep Method:
1312/3010A
Analytical Method: 6020B
Prep Date: 07/01/2019 1243
Leachate Date:
06/25/2019 2235
Spike
Amount
Result
% Rec
Parameter
(ug/L)
(ug/L)
Q Dil
% Rec
Limit
Analysis Date
Antimony
200
200
1
100
80-120
07/03/2019 0337
Arsenic
200
210
1
103
80-120
07/03/2019 0337
Beryllium
200
200
1
102
80-120
07/03/2019 0337
Cadmium
200
200
1
98
80-120
07/03/2019 0337
Cobalt
200
220
1
108
80-120
07/03/2019 0337
Lead
200
210
1
107
80-120
07/03/2019 0337
Selenium
200
180
1
89
80-120
07/03/2019 0337
Silver
200
210
1
106
80-120
07/03/2019 0337
Thallium
200
210
1
103
80-120
07/03/2019 0337
Vanadium
200
210
1
106
80-120
07/03/2019 0337
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 87 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - MB
Sample ID: UQ20938-001 Matrix: Solid
Batch: 20938 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 06/27/2019 1855
Parameter Result Q Dil LOQ DL Units Analysis Date
Mercury ND 1 0.083 0.020 mg/kg 06/28/20191745
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 88 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - LCS
Sample ID: UQ20938-002 Matrix: Solid
Batch: 20938 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 06/27/2019 1855
Spike
Amount Result % Rec
Parameter (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Mercury 0.83 0.86 1 104 80-120 06/28/20191748
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 89 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - MS
Sample ID: UF21017-001MS Matrix: Solid
Batch: 20938 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 06/27/2019 1855
Sample Spike
Amount Amount Result % Rec
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec Limit Analysis Date
Mercury ND 0.75 0.82 1 109 80-120 06/28/20191826
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 90 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
ICP-MS - MSD
Sample ID: UF21017-001MD Matrix: Solid
Batch: 20938 Prep Method: 7471 B
Analytical Method: 7471 B Prep Date: 06/27/2019 1855
Sample Spike
Amount Amount Result % Rec % RPD
Parameter (mg/kg) (mg/kg) (mg/kg) Q Dil % Rec % RPD Limit Limit Analysis Date
Mercury ND 0.79 0.86 1 109 4.8 80-120 20 06/28/20191833
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 91 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - MB
Sample ID: UQ21192-001 Matrix: Solid
Batch: 21192 Prep Method: 1312/7470A
Analytical Method: 7470A Prep Date: 06/30/2019 1411 Leachate Date: 06/25/2019 2235
Parameter Result Q Dil LOQ DL Units Analysis Date
Mercury ND 1 0.0020 0.00091 mg/L 07/02/2019 0035
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 92 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SPLP Metals - LCS
Sample ID: UQ21192-002 Matrix: Solid
Batch: 21192 Prep Method: 1312/7470A
Analytical Method: 7470A Prep Date: 06/30/2019 1411 Leachate Date: 06/25/2019 2235
Spike
Amount Result % Rec
Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date
Mercury 0.0020 0.0019 1 97 80-120 07/02/2019 0038
LOQ = Limit of Quantitation P = The RPD between two GC columns exceeds 40 % N = Recovery is out of criteria
DL = Detection Limit J = Estimated result < LOQ and > DL + = RPD is out of criteria
LOD = Limit of Detection NO = Not detected at or above the DL
Note: Calculations are performed before rounding to avoid round -off errors in calculated results
Shealy Environmental Services, Inc. QC Data for Lot Number: UF21017
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 93 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
Chain of Custody
and
Miscellaneous Documents
Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 94 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SHEALY ENVIRONMENTAL SERVICES, INC.
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LLI
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Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 95 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SHEALY ENVIRONMENTAL SERVICES, INC.
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Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 96 of 97

DocuSign Envelope ID: 36955F5A-B4D5-4FOA-83FB-CC7177A172C3
SHEALY ENVIRONMENTAL SERVICES, INC.
Shen1yrEki1mmneolA1 L-ti iwv%!w,
Dmuboni Nunmr: i4 K!014p .14 FCC l al'l
Sample Receipt $eeklls# (SRC) rrrqulY�nae.8+�C+Qda
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I fe[hnd: [, rtR-nm11); tr IR Gun Corrcotian FDry Ice f ManeYts © Nn ON J Clesmpca�[turc of an}' cooler wEPM110d 6.0"C, wr�s ]'nopccx 141anagrtx *
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l _ Were M'Gainp[usconlaialtrs 1nL"ingIP'{Crss (circle Cue) SmpicsNut [ts an COC?
1Z TEA lb. 3�01' VOA and I€S1C-] 75 se Inpl+js+ were bu1r1?les ]'rcSeCrl >"pea-s re' { G"'Or bJTIW i o dliamc:brl
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nm3cti}' trattseribad tip[ri the COG into fhe rintcin¢rnrenLff?
❑ Yt±S 40 21. W4'as the L1L1i¢ n4111b,-r iiF;'W' nn tlrL r4i]C:t;[ C7 l2E�e]? IFyes, Quote !# NA
4amplec�r>ariom {Tv�;lst l�ecrnuple-1 foraRy saltsrlgs] iatowTcctlyprresepa tlorwith headspltge }
SaJnpie a) Pl 1 were r&xLived imorrentry presccvW a]'d wemudjusodf amordilagiy
in san�piTa receiving wfth KA _m4 Of CAI L a urge: ! 12SO4, TIN-03, FICI, k421014 using, SR # NA__
I'iln ofpll ;crti tiott NAye Ifrtrare than one pr orvF,tiva b nccdad, rilease tlofe in the rsments peao, '-
rdmP (s) ''TA — y vrerc 3nceiw4-i With hubble�,--6 mirk in d1au,eter,
e1rple5() NA Were rex:civcd vdlh TR C, �1 P,5 irpf L (1 F 419 xo j arrd u erg
0611slcd 0cWWkrg,[y in sample Itrcivhg w[th sodn3lri rhiosulfm (Na 20 t) with Slwsly 1D: NA
Sit haecpde [nbcrs App]i-2d Lay: _twfLC—
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Shealy Environmental Services, Inc.
106 Vantage Point Drive West Columbia, SC 29172 [phone] Fax [phone] www.shealylab.com
Page 97 of 97