1804_DukeMarshall_PLMResults_FID1664540_20220414

= 13
April 14, 2022
Duke Energy Marshall Steam Station
EHS Groundwater & Waste Programs
8320 NC Highway 150
Terrell, North Carolina 28682
Attention: Ms. Ashley Healy, P.G.
Reference: Clean Closure Verification - Visual Confirmation and PLM Results
Duke Energy Marshall Steam Station
Confirmatory Soil Sampling — Marshall Steam Station 1804 Phase 1 Dry Ash Landfill
S&ME Project No. 212013, Ph. 06
Ms. Healy:
S&ME, Inc. (S&ME) is submitting the enclosed summary of results supporting the removal of Coal Combustion
Residual (CCR) material by visual verification and Polarized Light Microscopy (PLM) analysis results within the 1804
Phase 1 Dry Ash Landfill, Permit number 1804-INDUS (1804 Phase 1 Landfill) at Duke Energy's Marshall Steam
Station, located in Catawba County, North Carolina.
This summary letter is provided so that the North Carolina Department of Environmental Quality Solid Waste
Section (NCDEQ — SWS) may review PLM analytical results prior to our formal report documenting our full clean
closure verification field activities as outlined in the Excavation Soil Sampling Plan Rev. 2, dated December 2019,
and included as Appendix I in the Application for Permit Modification - Closure By Excavation - Marshall Steam
Station Dry Ash Landfill Phase I (Permit No. INDUS-1804), Rev. 0, dated July 2021, approved by NCDEQ-SWS on
August 6, 2021 (FID 1595658).
We have attached Table 1 — PLM Sample Results and Soil Sampling Summary to this letter which includes soil
sample descriptions, including visual verification that CCR material has been removed, and supporting PLM
analysis results for samples collected by S&ME personnel during sampling events conducted between February
81n-16tn, 2022 and March 3rd-81n 2022. A corresponding map, Figure 1 — PLM Sampling Locations is enclosed as
well, depicting sample locations within the 1804 Phase 1 Landfill footprint that have been sampled and analyzed
using the PLM method for CCR material.
Please note that all samples collected in the 1804 Phase 1 Landfill in February and March of 2022 contained no
more than 8% CCR material. The clean closure benchmark value for CCR material in soil samples is 50%.
S&ME, Inc. 12016 Ayrsley Town Blvd., Suite 2-A I Charlotte, NC 28273 1 p 704.523.4726 1 www.smeinc.com

EHS Groundwater & Waste Programs
April 14, 2022
Page 2
S&ME thanks you for your receipt of these records. Should you have any questions or need additional
information, please do not hesitate to contact us at [phone].
Respectfully Submitted,
S&ME, Inc.
Jasmine Tayouga
Associate Project Manager
Erin Kinsey, P.E.
Project Engineer
Senior Reviewed By: Julie P. Robertson, P.G. (Registration No. 1995)
Enclosures: Table 1 — PLM Results and Soil Sampling Summary
Figure 1 — PLM Sampling Locations
cc: James Malloy, Project Manager, Duke Energy Marshall Steam Station
S&ME, Inc.

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Commen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing Easting
Yes
No
Date Received
Results
Depth'
Coarse sand (SW) - tan, white, coarse, non -plastic fines, some rock
2/8/2022
2022003689
BC 44
0" - 6"
0" - 6"
682504.0
1417147.0
682515.2 1417138.0
X
2/17/2022
1
fragments and silt [RES]
Coarse sand (SP) - brown, coarse, non -plastic fines, some rock fragments
2/8/2022
2022003690
BC
44
2' - 2.5'
2' - 2.5'
682504.0
1417147.0
682515.2
1417138.0
X
2/17/2022
ND
and silt [RES]
Silty sand (SM) - yellowish brown, fine to coarse, non -plastic fines,
2/8/2022
2022003675
BC
45
0" - 6"
0" - 6"
682403.0
1417147.0
682395.6
1417141.0
X
2/17/2022
ND
micaceous, some rock fragments [RES]
Silty sand (SM) - reddish yellow, brown, fine to coarse, non -plastic fines,
2/8/2022
2022003676
BC
45
2' - 2.5'
2' - 2.5'
682403.0
1417147.0
682395.6
1417141.0
X
2/17/2022
ND
micaceous, some rock fragments [RES]
Silty sand (SM) - yellowish brown, fine to coarse, non -plastic fines,
2/8/2022
2022003672
BC
46
0" - 6"
0" - 6"
682306.0
1417146.0
682305.4
1417169.2
X
2/17/2022
ND
micaceous, some rock fragments [RES]; Refusal at 8" bgs
Silty sand (SM) - tannish brown, medium to fine, low -plastic fines, some
2/8/2022
2022003673
BC
47
0" - 6"
0" - 6"
682206.0
1417157.0
682244.4
1417199.8
X
2/17/2022
ND
reddish -brown clay [RES]
Silty sand (SM) - tannish brown, medium to fine, low -plastic fines, some
2/8/2022
2022003674
BC
47
2' - 2.5'
2' - 2.5'
682206.0
1417157.0
682244.4
1417199.8
X
2/17/2022
ND
reddish -brown clay [RES]
2/8/2022
2022003677
BD
45
0" - 6"
0" - 6"
682404.0
1417247.0
682392.3
1417246.7
X
2/17/2022
ND
Silty sand (SM) - tannish brown, medium to fine, non -plastic fines [RES]
2/8/2022
2022003678
BD
45
2' - 2.5'
2' - 2.5'
682404.0
1417247.0
682392.3
1417246.7
X
2/17/2022
ND
Coarse sand (SW) - yellowish brown, coarse, non -plastic fines [RES]
Silt with sand (ML) - brown, red, very fine to fine, non -plastic fines,
2/8/2022
2022003679
BD
46
0" - 6"
0" - 6"
682306.0
1417244.0
682296.5
1417244.8
X
2/17/2022
1
micaceous [RES]
Silt with sand (ML) - brown, very fine to fine, non- to low -plastic fines,
2/8/2022
2022003680
BD
46
2' - 2.5'
2' - 2.5'
682306.0
1417244.0
682296.5
1417244.8
X
2/17/2022
ND
micaceous [RES]
2/8/2022
2022003681
BD
47
0" - 6"
0" - 6"
682205.0
1417246.0
682192.6
1417263.6
X
2/17/2022
ND
Sandy clay (SC) - reddish brown, fine, low -plastic fines [RES]
2/8/2022
2022003682
BD
47
2' - 2.5'
2' - 2.5'
682205.0
1417246.0
682192.6
1417263.6
X
2/17/2022
ND
Sandy silt (ML) - reddish brown, fine, non -plastic fines [RES]
Silt with sand (ML) - brown, tan, fine, non- to low -plastic fines, micaceous
2/8/2022
2022003683
BE
45
0" - 6"
0" - 6"
682404.0
1417347.0
682400.6
1417338.8
X
2/17/2022
ND
[RES]
2/8/2022
2022003684
BE
45
2' - 2.5'
2' - 2.5'
682404.0
1417347.0
682400.6
1417338.8
X
2/17/2022
ND
Sandy silt (ML) - orange, brown, fine, non -plastic fines, micaceous [RES]
2/8/2022
2022003685
BE
46
0" - 6"
0" - 6"
682307.0
1417344.0
682307.6
1417336.3
X
2/17/2022
ND
Silt (ML) - light brown, fine, non -plastic fines [RES]
Silt (ML) - light brown, orangish brown, fine, non -plastic fines, some black
2/8/2022
2022003686
BE
46
2' - 2.5'
2' - 2.5'
682307.0
1417344.0
682307.6
1417336.3
X
2/17/2022
1
banding [RES]
2/8/2022
2022003687
BE
47
0" - 6"
0" - 6"
682201.0
1417347.0
682202.3
1417362.1
X
2/17/2022
ND
Silty clay (CL) - orange, brown, fine, medium -plastic fines, micaceous [RES]
Page 1 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Commen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
2/8/2022
2022003688
BE 47
2' - 2.5'
2' - 2.5'
682201.0
1417347.0
682202.3
1417362.1
X
2/17/2022
ND
Silt with sand (ML) - orange, fine, low -plastic fines, micaceous [RES]
2/9/2022
2022003700
BB
45
0" - 6"
0" - 6"
682407.0
1417051.0
682435.4
1417026.2
X
2/17/2022
2
Clayey silt (ML) - reddish brown, brown, fine, non- to low -plastic fines [RES]
2/9/2022
2022003701
BB
45
2' - 2.5'
2' - 2.5'
682407.0
1417051.0
682435.4
1417026.2
X
2/17/2022
ND
Silt with sand (ML) - yellowish brown, fine, non -plastic fines [RES]
Sandy silt (ML) - brown, fine, non -plastic fines, micaceous, some roots and
2/9/2022
2022003695
BC
43
0" - 6"
0" - 6"
682604.0
1417150.0
682603.5
1417159.2
X
2/17/2022
ND
rock fragments [RES]; Refusal at 1' bgs
2/9/2022
2022003698
BD
43
0" - 6"
0" - 6"
682601.0
1417247.0
682598.9
1417258.1
X
2/17/2022
1
Silty sand (SM) - brown, coarse, non -plastic fines [RES]
2/9/2022
2022003699
BD
43
2' - 2.5'
2' - 2.5'
682601.0
1417247.0
682598.9
1417258.1
X
2/17/2022
ND
Silty sand (SM) - light brown, fine, non -plastic fines [RES]
Silty sand (SM) - gray, tan, fine to medium, non -plastic fines, micaceous,
2/9/2022
2022003691
BD
44
0" - 6"
0" - 6"
682505.0
1417246.0
682496.8
1417249.8
X
2/17/2022
ND
some rock fragments [RES]
Silty sand (SM) - gray, tan, fine to medium, non -plastic fines, micaceous,
2/9/2022
2022003692
BD
44
2' - 2.5'
2' - 2.5'
682505.0
1417246.0
682496.8
1417249.8
X
2/17/2022
1
some rock fragments [RES]
Silty sand (SM) - orange, brown, fine to medium, non -plastic fines,
2/9/2022
2022003696
BE
43
0" - 6"
0" - 6"
682604.0
1417150.0
682611.5
1417346.2
X
2/17/2022
ND
micaceous [RES]
Sand with silt (SP) - light brown, red, fine to coarse, non -plastic fines,
2/9/2022
2022003697
BE
43
2' - 2.5'
2' - 2.5'
682600.0
1417347.0
682611.5
1417346.2
X
2/17/2022
ND
micaceous, some rock fragments [RES]
Silty sand (SM) - whitish tan, light brown, fine to medium, non -plastic fines
2/9/2022
2022003693
BE
44
0" - 6"
0" - 6"
682501.0
1417349.0
682491.1
1417350.1
X
2/17/2022
ND
[RES]
Sandy silt (ML) - whitish tan, orangish brown, fine to medium, non -plastic
2/9/2022
2022003694
BE
44
2' - 2.5'
2' - 2.5'
682501.0
1417349.0
682491.1
1417350.1
X
2/17/2022
1
fines, some black banding [RES]
Silt with sand (ML) - brown, fine to medium, non -plastic fines, micaceous
2/9/2022
2022003706
BF
44
0" - 6"
0" - 6"
682503.0
1417448.0
682503.0
1417436.6
X
2/17/2022
1
[RES]
Silt with sand (ML) - brown, fine to medium, non -plastic fines, micaceous
2/9/2022
2022003707
BF
44
2' - 2.5'
2' - 2.5'
682503.0
1417448.0
682503.0
1417436.6
X
2/17/2022
ND
[RES]
2/9/2022
2022003708
BF
45
0" - 6"
0" - 6"
682404.0
1417449.0
682397.2
1417447.7
X
2/17/2022
ND
Silt with sand (ML) - reddish brown, fine, non -plastic fines [RES]
2/9/2022
2022003709
BF
45
2' - 2.5'
2' - 2.5'
682404.0
1417449.0
682397.2
1417447.7
X
2/17/2022
ND
Silt with sand (ML) - tannish brown, fine, non -plastic fines [RES]
2/9/2022
2022003702
BF
46
0" - 6"
0" - 6"
682308.0
1417446.0
682292.1
1417435.4
X
2/17/2022
ND
Sandy silt (ML) - brown, fine, non -plastic fines, micaceous [RES]
2/9/2022
2022003703
BF
46
2' - 2.5'
2' - 2.5'
682308.0
1417446.0
682292.1
1417435.4
X
2/17/2022
ND
Sandy silt (ML) - light brown, fine, non -plastic fines, micaceous [RES]
Page 2 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Cornmen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Clayey sand (SC) - reddish brown, fine, low -plastic fines, topsoil with roots
2/9/2022
2022003704
BF 47
0" - 6"
0" - 6"
682204.0
1417446.0
682201.3
1417413.9
X
2/17/2022
ND
and organics for top 2.5" [RES]
2/9/2022
2022003705
BF
47
2' - 2.5'
2' - 2.5'
682204.0
1417446.0
682201.3
1417413.9
X
2/17/2022
ND
Sandy silt (ML) - reddish brown, fine, non -plastic fines, some clay [RES]
Sandy silt (ML) - brownish red, fine to medium, non -plastic fines, micaceous
2/11/2022
2022004048
BA
43
0" - 6"
0" - 6"
682605.0
1416966.0
682595.5
1416964.5
X
2/23/2022
ND
[RES]
Well -graded sand (SW) - brown, tan, fine to medium, non -plastic fines,
2/11/2022
2022004049
BA
43
2' - 2.5'
2' - 2.5'
682605.0
1416966.0
682595.5
1416964.5
X
2/23/2022
ND
micaceous [RES]
Sand with silt (SP) - red, fine to medium, low- to non -plastic fines,
2/11/2022
2022004050
BA
44
0" - 6"
0" - 6"
682502.0
1416945.0
682495.9
1416945.3
X
2/23/2022
ND
micaceous [FILL]
Sandy silt (ML) - brown, reddish brown, fine, non -plastic fines, micaceous
2/11/2022
2022004051
BA
44
2' - 2.5'
2' - 2.5'
682502.0
1416945.0
682495.9
1416945.3
X
2/23/2022
ND
[RES]
2/11/2022
2022004046
BB
43
0" - 6"
0" - 6"
682605.0
1417045.0
682597.8
1417046.3
X
2/23/2022
ND
Sandy silt (ML) - reddish brown, fine, non -plastic fines, micaceous [FILL]
Silty sand (SM) - brown, light brown, fine to medium, non -plastic fines,
2/11/2022
2022004047
BB
43
2' - 2.5'
2' - 2.5'
682605.0
1417045.0
682597.8
1417046.3
X
2/23/2022
ND
micaceous [RES]
2/11/2022
2022004044
BB
44
0" - 6"
0" - 6"
682505.0
1417049.0
682501.8
1417044.4
X
2/23/2022
ND
Sandy silt (ML) - reddish brown, fine, non -plastic fines, micaceous [FILL]
Silty sand (SM) - Brown, light brown, fine to medium, non -plastic fines,
2/11/2022
2022004045
BB
44
2' - 2.5'
2' - 2.5'
682505.0
1417049.0
682501.8
1417044.4
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - orange, brown, fine to medium, non -plastic fines,
2/11/2022
2022004054
BC
42
0" - 6"
0" - 6"
682703.0
1417146.0
682703.9
1417152.2
X
2/23/2022
ND
micaceous [RES]
2/11/2022
2022004055
BC
42
2' - 2.5'
2' - 2.5'
682703.0
1417146.0
682703.9
1417152.2
X
2/23/2022
ND
Sandy silt (ML) - orange, brown, fine, non -plastic fines, micaceous [RES]
Well -grade sand (SW) - reddish brown, medium to coarse, non -plastic fines,
2/11/2022
2022004052
BD
42
0" - 6"
0" - 6"
682702.0
1417246.0
682697.5
1417250.7
X
2/23/2022
1
micaceous, some angular gravel [RES]
Well -grade sand (SW) - reddish brown, medium to coarse, non -plastic fines,
2/11/2022
2022004053
BD
42
2' - 2.5'
2' - 2.5'
682702.0
1417246.0
682697.5
1417250.7
X
2/23/2022
ND
micaceous, some angular gravel [RES]
Sandy silt (ML) - reddish brown, fine, non- to low -plastic fines, micaceous
2/14/2022
2022004064
AY
45
0" - 6"
0" - 6"
682408.0
1416755.0
682392.0
1416763.3
X
2/23/2022
ND
[RES]
Sandy silt (ML) - reddish brown, fine, non- to low -plastic fines, micaceous
2/14/2022
2022004065
AY
45
2' - 2.5'
2' - 2.5'
682408.0
1416755.0
682392.0
1416763.3
X
2/23/2022
ND
[RES]
Sandy silt (ML) - reddish brown, fine, non- to low -plastic fines, micaceous
2/14/2022
2022004062
AY
46
0" - 6"
0" - 6"
682303.0
1416748.0
682297.9
1416754.2
X
2/23/2022
ND
[RES]
Sandy silt (ML) - yellowish brown, fine, non- to low -plastic fines, micaceous
2/14/2022
2022004063
AY
46
2' - 2.5'
2' - 2.5'
682303.0
1416748.0
682297.9
1416754.2
X
2/23/2022
ND
[RES]
Page 3 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Commen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Silty sand (SM) - tan, orange, brown, fine to medium, non -plastic fines,
2/14/2022
2022004066
AZ 44
0" - 6"
0" - 6"
682497.0
1416847.0
682482.4
1416846.2
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - tan, orange, brown, fine to medium, non -plastic fines,
2/14/2022
2022004067
AZ
44
2' - 2.5'
2' - 2.5'
682497.0
1416847.0
682482.4
1416846.2
X
2/23/2022
ND
micaceous [RES]
Silt with sand (ML) - brown, very fine to fine, non- to low -plastic fines,
2/14/2022
2022004056
AZ
45
0" - 6"
0" - 6"
682408.0
1416848.0
682398.5
1416848.4
X
2/23/2022
ND
micaceous [RES]
2/14/2022
2022004057
AZ
45
2' - 2.5'
2' - 2.5'
682408.0
1416848.0
682398.5
1416848.4
X
2/23/2022
ND
Sandy silt (ML) - brown, fine, non -plastic fines, micaceous [RES]
Silty sand (SM) - orange, tan, brown, fine to medium, non -plastic fines,
2/14/2022
2022004060
AZ
46
0" - 6"
0" - 6"
682305.0
1416849.0
682297.4
1416845.1
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - brown, reddish brown, fine to medium, non -plastic fines,
2/14/2022
2022004061
AZ
46
2' - 2.5'
2' - 2.5'
682305.0
1416849.0
682297.4
1416845.1
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - orangish brown, fine to medium, non -plastic fines,
2/14/2022
2022004068
BA
45
0" - 6"
0" - 6"
682401.0
1416945.0
682389.1
1416946.5
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - tan, yellowish brown, fine to medium, non -plastic fines,
2/14/2022
2022004069
BA
45
2' - 2.5'
2' - 2.5'
682401.0
1416945.0
682389.1
1416946.5
X
2/23/2022
ND
micaceous [RES]
Clayey sand (SC) - reddish brown, fine, medium -plastic fines, micaceous
2/14/2022
2022004058
BA
46
0" - 6"
0" - 6"
682325.0
1416935.0
682325.5
1416929.1
X
2/23/2022
ND
[RES]
Silty sand (SM) - orange, light brown, fine to medium, non -plastic fines,
2/14/2022
2022004059
BA
46
2' - 2.5'
2' - 2.5'
682325.0
1416935.0
682325.5
1416929.1
X
2/23/2022
ND
micaceous [RES]
Silty sand (SM) - brown, fine to medium, non- to low -plastic fines,
3/3/2022
2022006184
AX
47
0" - 6"
0" - 6"
Note 3
Note 3
682199.0
1416664.1
X
3/14/2022
ND
micaceous, some rock fragments [RES]; Refusal at 1.5' bgs
Clayey silt (ML) - reddish brown, fine, low -plastic fines, micaceous, some fine
3/3/2022
2022006182
AY
47
0" - 6"
0" - 6"
Note 3
Note 3
682198.7
1416757.7
X
3/14/2022
ND
sand present [RES]
Fine to medium sand (SM) - reddish brown, fine to medium, low -plastic
3/3/2022
2022006183
AY
47
2' - 2.5'
2' - 2.5'
Note 3
Note 3
682198.7
1416757.7
X
3/14/2022
ND
fines, slightly moist [RES]
Silty sand (SM) - dark brown, black, fine to medium, non -plastic fines,
3/3/2022
2022006189
AZ
42
0" - 6"
0" - 6"
Note 3
Note 3
682731.5
1416870.8
X
3/14/2022
ND
micaceous, some organic matter [RES]
Silty sand (SM) - yellowish red, fine to medium, non- to low -plastic fines,
3/3/2022
2022006190
AZ
42
2' - 2.5'
2' - 2.5'
Note 3
Note 3
682731.5
1416870.8
X
3/14/2022
ND
micaceous [RES]
3/3/2022
2022006180
AZ
47
0" - 6"
0" - 6"
Note 3
Note 3
682227.5
1416851.2
X
3/14/2022
ND
Silt with sand (ML) - brown, fine, low -plastic fines, micaceous [RES]
Sandy silt (ML) - reddish brown, fine, non- to low -plastic fines, micaceous
3/3/2022
2022006181
AZ
47
2' - 2.5'
2' - 2.5'
Note 3
Note 3
682227.5
1416851.2
X
3/14/2022
ND
[RES]
Silty sand (SM) - orangish tan, fine to medium, non -plastic fines, micaceous
3/3/2022
2022006197
BA
41
0" - 6"
0" - 6"
682802.0
1416949.0
682787.5
1416950.2
X
3/14/2022
1
[RES]
Page 4 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Cornmen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Silty sand (SM) - yellowish tan, fine to medium, non -plastic fines, micaceous,
3/3/2022
2022006198
BA 41
2' - 2.5'
2' - 2.5'
682802.0
1416949.0
682787.5
1416950.2
X
3/14/2022
ND
slightly moist [RES]
Sandy silt (ML) - brown, reddish brown, fine to coarse, non -plastic fines,
3/3/2022
2022006187
BA
42
0" - 6"
0" - 6"
682704.0
1416945.0
682704.8
1416944.4
X
3/14/2022
ND
micaceous [RES]
Sandy silt (ML) - tannish brown, fine, non -plastic fines, micaceous, some
3/3/2022
2022006188
BA
42
2' - 2.5'
2' - 2.5'
682704.0
1416945.0
682704.8
1416944.4
X
3/14/2022
ND
biotite banding [RES]
Silt (ML) - brown, fine, non- to low -plastic fines, micaceous, slightly moist
3/3/2022
2022006191
BB
41
0" - 6"
0" - 6"
682804.0
1417047.0
682810.1
1417046.3
X
3/14/2022
ND
[RES]
Silt with sand (ML) - tannish brown, fine, non - to low -plastic fines,
3/3/2022
2022006192
BB
41
2' - 2.5'
2' - 2.5'
682804.0
1417047.0
682810.1
1417046.3
X
3/14/2022
ND
micaceous, slightly moist [RES]
Sandy silt (ML) - gray, reddish brown, fine, non -plastic fines, micaceous
3/3/2022
2022006185
BB
42
0" - 6"
0" - 6"
682703.0
1417047.0
682702.8
1417049.6
X
3/14/2022
1
[RES]
Sandy silt (ML) - gray, reddish brown, fine, non -plastic fines, micaceous
3/3/2022
2022006186
BB
42
2' - 2.5'
2' - 2.5'
682703.0
1417047.0
682702.8
1417049.6
X
3/14/2022
ND
[RES]
Silt with sand (ML) - brown, fine, low- to medium -plastic fines, micaceous
3/3/2022
2022006193
BC
41
0" - 6"
0" - 6"
682800.0
1417147.0
682802.8
1417143.2
X
3/14/2022
ND
[RES]
Silt with sand (ML) - yellowish brown, fine, non -plastic fines, micaceous,
3/3/2022
2022006194
BC
41
2' - 2.5'
2' - 2.5'
682800.0
1417147.0
682802.8
1417143.2
X
3/14/2022
ND
some small rock fragments [RES]
3/3/2022
2022006195
BD
41
0" - 6"
0" - 6"
682795.0
1417246.0
682775.0
1417213.8
X
3/14/2022
ND
Silty sand (SM) - tannish brown, fine, non -plastic fines [RES]
3/3/2022
2022006196
BD
41
2' - 2.5'
2' - 2.5'
682795.0
1417246.0
682775.0
1417213.8
X
3/14/2022
ND
Sandy silt (ML) - tannish brown, fine, non -plastic fines [RES]
Clayey sand (SC) - reddish brown, fine to coarse, non- to low -plastic fines
3/4/2022
2022006213
AY
39
0" - 6"
0" - 6"
683035.0
1416777.0
683037.3
1416772.8
X
3/14/2022
ND
[RES]
Silty clay (CL) - reddish brown, fine, medium -plastic fines, slightly moist
3/4/2022
2022006214
AY
39
2' - 2.5'
2' - 2.5'
683035.0
1416777.0
683037.3
1416772.8
X
3/14/2022
ND
[RES]
Clayey silt (ML) - reddish brown, fine, low- to medium -plastic fines,
3/4/2022
2022006205
AY
40
0" - 6"
0" - 6"
Note 3
Note 3
682927.3
1416751.8
X
3/14/2022
ND
micaceous, slightly moist [RES]
Silty clay (CL) - reddish brown, fine, medium -plastic fines, slightly moist
3/4/2022
2022006206
AY
40
2' - 2.5'
2' - 2.5'
Note 3
Note 3
682927.3
1416751.8
X
3/14/2022
1
[RES]
3/4/2022
2022006211
AZ
39
0" - 6"
0" - 6"
683008.0
1416846.0
683009.9
1416853.4
X
3/14/2022
ND
Clayey silt (ML) - brown, fine, low- to medium -plastic fines, micaceous [RES]
Silty sand (SM) - reddish brown, fine to medium, non- to low -plastic fines,
3/4/2022
2022006212
AZ
39
2' - 2.5'
2' - 2.5'
683008.0
1416846.0
683009.9
1416853.4
X
3/14/2022
ND
micaceous [RES]
Silty sand (SM) - reddish brown, fine to medium, non -plastic fines,
3/4/2022
2022006203
AZ
40
0" - 6"
0" - 6"
682937.0
1416874.0
682934.3
1416858.7
X
3/14/2022
1
micaceous [RES]
Page 5 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Cornmen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Silty sand (SM) - tannish brown, fine to medium, non -plastic fines,
3/4/2022
2022006204
AZ 40
2' - 2.5'
2' - 2.5'
682937.0
1416874.0
682934.3
1416858.7
X
3/14/2022
ND
micaceous, some small rock fragments [RES]
Silty sand (SM) - organic brown, fine to medium, non -plastic fines, some
3/4/2022
2022006207
BA
39
0" - 6"
0" - 6"
683011.0
1416938.0
683015.8
1416923.0
X
3/14/2022
ND
rock fragments [RES]
Silty sand (SM) - yellowish brown, fine to medium, non -plastic fines, some
3/4/2022
2022006208
BA
39
2' - 2.5'
2' - 2.5'
683011.0
1416938.0
683015.8
1416923.0
X
3/14/2022
ND
small rock fragments [RES]
3/4/2022
2022006209
BB
39
0" - 6"
0" - 6"
683003.0
1417046.0
682975.9
1417012.7
X
3/14/2022
ND
Clayey silt (ML) - brown, fine, low -plastic fines, micaceous [RES]
Silt (ML) - tannish brown, fine, non -plastic fines, micaceous, slightly moist
3/4/2022
2022006210
BB
39
2' - 2.5'
2' - 2.5'
683003.0
1417046.0
682975.9
1417012.7
X
3/14/2022
ND
[RES]
3/4/2022
2022006199
BB
40
0" - 6"
0" - 6"
682904.0
1417047.0
682907.0
1417046.4
X
3/14/2022
ND
Silt with sand (ML) - brown, fine, non -plastic fines, micaceous [RES]
3/4/2022
2022006200
BB
40
2' - 2.5'
2' - 2.5'
682904.0
1417047.0
682907.0
1417046.4
X
3/14/2022
ND
Silt with sand (ML) - brown, fine, non -plastic fines, micaceous [RES]
Silty sand (SM) - tannish brown, fine to coarse, non -plastic fines, micaceous
3/4/2022
2022006201
BC
40
0" - 6"
0" - 6"
682901.0
1417144.0
682879.8
1417121.0
X
3/14/2022
ND
[RES]
Sandy silt (ML) - light brown, tan, fine, non -plastic fines, micaceous, some
3/4/2022
2022006202
BC
40
2' - 2.5'
2' - 2.5'
682901.0
1417144.0
682879.8
1417121.0
X
3/14/2022
ND
small rock fragments [RES]
Clayey silt (ML) - brown, reddish brown, fine, low- to medium -plastic fines,
3/7/2022
2022006607
AX
36
0" - 6"
0" - 6"
683322.0
1416683.0
683317.1
1416682.5
X
3/15/2022
ND
micaceous [RES]
Sandy silt (ML) - yellowish tan, orange, fine, non -plastic fines, micaceous
3/7/2022
2022006608
AX
36
2' - 2.5'
2' - 2.5'
683322.0
1416683.0
683317.1
1416682.5
X
3/15/2022
ND
[RES]
Silty sand (SM) - light tannish brown, fine, non -plastic fines, micaceous,
3/7/2022
2022006609
AY
36
0" - 6"
0" - 6"
683309.0
1416746.0
683298.1
1416746.1
X
3/15/2022
ND
some rock fragments [RES]
Silty sand (SM) - light tannish brown, fine, non -plastic fines, micaceous,
3/7/2022
2022006610
AY
36
2' - 2.5'
2' - 2.5'
683309.0
1416746.0
683298.1
1416746.1
X
3/15/2022
ND
some rock fragments [RES]
Sandy silt (ML) - tannish brown, fine, non -plastic fines, some dark brown
3/7/2022
2022006601
AY
37
0" - 6"
0" - 6"
683202.0
1416748.0
683200.7
1416744.6
X
3/15/2022
ND
and whitish gray bands [RES]
Silt (ML) - tannish brown, fine, non -plastic fines, micaceous, some black
3/7/2022
2022006602
AY
37
2' - 2.5'
2' - 2.5'
683202.0
1416748.0
683200.7
1416744.6
X
3/15/2022
ND
banding [RES]
Clayey silt (ML) - brown, reddish brown, fine, low -plastic fines, micaceous
3/7/2022
2022006599
AY
38
0" - 6"
0" - 6"
683109.0
1416753.0
683107.9
1416759.5
X
3/15/2022
2
[RES]
Silt with sand (ML) - reddish brown, brown, fine, low -plastic fines, micaceous
3/7/2022
2022006600
AY
38
2' - 2.5'
2' - 2.5'
683109.0
1416753.0
683107.9
1416759.5
X
3/15/2022
ND
[RES]
Sandy silt (ML) - yellowish tan, fine to medium, non -plastic fines, micaceous,
3/7/2022
2022006611
AZ
36
0" - 6"
0" - 6"
683304.0
1416849.0
683290.0
1416850.3
X
3/15/2022
7
some small rock fragments [RES]
Page 6 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Cornmen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Sandy silt (ML) - yellowish tan, fine to medium, non -plastic fines, micaceous,
3/7/2022
2022006612
AZ 36
2' - 2.5'
2' - 2.5'
683304.0
1416849.0
683290.0
1416850.3
X
3/15/2022
ND
some small rock fragments [RES]
Silty sand (SM) - yellowish brown, fine to medium, non -plastic fines, some
3/7/2022
2022006603
AZ
37
0" - 6"
0" - 6"
683206.0
1416848.0
683207.0
1416845.2
X
3/15/2022
ND
small rock fragments [RES]
Sandy silt (ML) - yellowish tan, fine, non -plastic fines, small rock fragments
3/7/2022
2022006604
AZ
37
2' - 2.5'
2' - 2.5'
683206.0
1416848.0
683207.0
1416845.2
X
3/15/2022
ND
[RES]
Silty sand (SM) - reddish brown, fine to coarse, non -plastic fines, micaceous
3/7/2022
2022006597
AZ
38
0" - 6"
0" - 6"
683105.0
1416845.0
683105.8
1416852.7
X
3/15/2022
ND
[RES]
Silt with sand (ML) - tannish brown, fine to medium, non -plastic fines,
3/7/2022
2022006598
AZ
38
2' - 2.5'
2' - 2.5'
683105.0
1416845.0
683105.8
1416852.7
X
3/15/2022
ND
micaceous [RES]
Silty sand (SM) - reddish brown, fine to medium, non -plastic fines,
3/7/2022
2022006613
BA
36
0" - 6"
0" - 6"
683305.0
1416950.0
683269.6
1416904.3
X
3/15/2022
ND
micaceous [RES]
Sandy silt (ML) - reddish brown, fine, non -plastic fines, micaceous, some
3/7/2022
2022006614
BA
36
2' - 2.5'
2' - 2.5'
683305.0
1416950.0
683269.6
1416904.3
X
3/15/2022
ND
large biotite fragments and banding [RES]
Silty sand (SM) - reddish brown, fine, low -plastic fines, micaceous, slightly
3/7/2022
2022006605
BA
37
0" - 6"
0" - 6"
683203.0
1416945.0
683180.5
1416910.1
X
3/15/2022
ND
moist [RES]
3/7/2022
2022006606
BA
37
2' - 2.5'
2' - 2.5'
683203.0
1416945.0
683180.5
1416910.1
X
3/15/2022
ND
Silt (ML) - tannish brown, fine, non -plastic fines, micaceous [RES]
3/7/2022
2022006595
BA
38
0" - 6"
0" - 6"
683096.0
1416933.0
683093.4
1416935.3
X
3/15/2022
ND
Silty sand (SM) - reddish brown, fine to medium, non -plastic fines [RES]
Silty sand (SM) - yellowish red, brown, fine to medium, non -plastic fines
3/7/2022
2022006596
BA
38
2' - 2.5'
2' - 2.5'
683096.0
1416933.0
683093.4
1416935.3
X
3/15/2022
ND
[RES]
Sandy silt (ML) - yellowish tan, fine, non -plastic fines, micaceous, some small
3/8/2022
2022006620
AW
32
0" - 6"
0" - 6"
Note 3
Note 3
683705.0
1416560.6
X
3/15/2022
ND
rock fragments [RES]
Sandy silt (ML) - yellowish tan, orange, fine, non -plastic fines, micaceous,
3/8/2022
2022006621
AW
32
2' - 2.5'
2' - 2.5'
Note 3
Note 3
683705.0
1416560.6
X
3/15/2022
ND
some small rock fragments [RES]
3/8/2022
2022006624
AW
33
0" - 6"
0" - 6"
Note 3
Note 3
683590.8
1416551.1
X
3/15/2022
ND
Sandy silt (ML) - reddish brown, fine, low -plastic fines, micaceous [RES]
Silty sand (SM) - gray, brown, fine to medium, non -plastic fines, some rock
3/8/2022
2022006625
AW
33
2' - 2.5'
2' - 2.5'
Note 3
Note 3
683590.8
1416551.1
X
3/15/2022
ND
fragments [RES]
Silty sand (SM) - brown, black, fine, non -plastic fines, some organic matter
3/8/2022
2022006630
AW
34
0" - 6"
0" - 6"
683503.0
1416545.0
683488.4
1416548.5
X
3/15/2022
1
[RES]
Silty sand (SM) - reddish brown, fine to medium, non -plastic fines,
3/8/2022
2022006631
AW
34
2' - 2.5'
2' - 2.5'
683503.0
1416545.0
683488.4
1416548.5
X
3/15/2022
ND
micaceous [RES]
3/8/2022
2022006615
AX
31
0" - 6"
0" - 6"
683821.0
1416651.0
683781.9
1416643.4
X
3/15/2022
8
Sandy silt (ML) - grayish tan, fine, low -plastic fines [RES]; Refusal at 8" bgs.
Page 7 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
Sample
ID
Proposed
Duke Energy
ProposedS&ME
Date Collected
Actual
Sample
Sample Description and Commen
Sample ID
Column Row
Sample
Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
3/8/2022
2022006616
AX 32
0" - 6"
0" - 6"
Note 3
Note 3
683697.7
1416638.7
X
3/15/2022
1
Sandy silt (ML) - white, brown, fine, non -plastic fines, micaceous [RES]
3/8/2022
2022006617
AX
32
2' - 2.5'
2' - 2.5'
Note 3
Note 3
683697.7
1416638.7
X
3/15/2022
ND
Sandy silt (ML) - yellowish tan, fine, non -plastic fines, micaceous [RES]
3/8/2022
2022006622
AX
33
0" - 6"
0" - 6"
683600.0
1416648.0
683607.8
1416649.5
X
3/15/2022
1
Silty sand (SM) - yellowish tan, fine, non -plastic fines, micaceous [RES]
Silty sand (SM) - yellowish tan, orange, fine to medium, non -plastic fines,
3/8/2022
2022006623
AX
33
2' - 2.5'
2' - 2.5'
683600.0
1416648.0
683607.8
1416649.5
X
3/15/2022
1
micaceous [RES]
3/8/2022
2022006628
AX
34
0" - 6"
0" - 6"
683507.0
1416646.0
683500.8
1416650.0
X
3/15/2022
ND
Clayey silt (ML) - brown, fine, medium -plastic fines, micaceous [RES]
3/8/2022
2022006629
AX
34
2' - 2.5'
2' - 2.5'
683507.0
1416646.0
683500.8
1416650.0
X
3/15/2022
ND
Clayey silt (ML) - brown, fine, medium -plastic fines, micaceous [RES]
3/8/2022
2022006636
AX
35
0" - 6"
0" - 6"
683435.0
1416683.0
683408.2
1416665.0
X
3/15/2022
ND
Sandy silt (ML) - yellowish tan, fine, non -plastic fines, micaceous [RES]
Sandy silt (ML) - yellowish tan, fine, non -plastic fines, micaceous, some small
3/8/2022
2022006637
AX
35
2' - 2.5'
2' - 2.5'
683435.0
1416683.0
683408.2
1416665.0
X
3/15/2022
ND
rock fragments [RES]
Silty sand (SM) - yellowish tan, fine, non -plastic fines, micaceous, some small
3/8/2022
2022006618
AY
32
0" - 6"
0" - 6"
683718.0
1416769.0
683685.9
1416752.4
X
3/15/2022
2
rock fragments [RES]
Silty with sand (ML) - yellowish tan, fine, non -plastic fines, micaceous, some
3/8/2022
2022006619
AY
32
2' - 2.5'
2' - 2.5'
683718.0
1416769.0
683685.9
1416752.4
X
3/15/2022
ND
small rock fragments [RES]
Silt with sand (ML) - reddish brown, fine, non- to low -plastic fines,
3/8/2022
2022006626
AY
33
0" - 6"
0" - 6"
683604.0
1416744.0
683593.5
1416731.0
X
3/15/2022
1
micaceous [RES]
Silty sand (SM) - reddish brown, fine, non- to low -plastic fines, micaceous
3/8/2022
2022006627
AY
33
2' - 2.5'
2' - 2.5'
683604.0
1416744.0
683593.5
1416731.0
X
3/15/2022
ND
[RES]
Silt with sand (ML) - yellowish tan, white, red, fine, non -plastic fines,
3/8/2022
2022006632
AY
34
0" - 6"
0" - 6"
683509.0
1416745.0
683499.8
1416741.3
X
3/15/2022
ND
micaceous [RES]
Silt with sand (ML) - yellowish brown, fine, non -plastic fines, micaceous
3/8/2022
2022006633
AY
34
2' - 2.5'
2' - 2.5'
683509.0
1416745.0
683499.8
1416741.3
X
3/15/2022
ND
[RES]
Silty sand (SM) - brown, fine to medium, non- to low -plastic fines,
3/8/2022
2022006638
AY
35
0" - 6"
0" - 6"
683404.0
1416749.0
683400.9
1416756.6
X
3/15/2022
1
micaceous, some rock fragments [RES]; Refusal at 1.5' bgs
Silty sand (SM) - brown, fine to medium, non- to low -plastic fines,
3/8/2022
2022006639
AY
35
2' - 2.5'
2' - 2.5'
683404.0
1416749.0
683400.9
1416756.6
X
3/15/2022
ND
micaceous, some rock fragments [RES]; Refusal at 1.5' bgs
Silty sand (SM) - reddish brown, yellowish tan, fine to medium, non -plastic
3/8/2022
2022006634
AZ
34
0" - 6"
0" - 6"
683505.0
1416861.0
683496.8
1416811.0
X
3/15/2022
1
fines, micaceous, some small rock fragments [RES]
L
Silty sand (SM) - yellowish tan, gray, fine to medium, non -plastic fines,
3/8/2022
2022006635
AZ
34
2' - 2.5'
2' - 2.5'
683505.0
1416861.0
683496.8
1416811.0
X
3/15/2022
1
I
I
I
I
I
I _L
micaceous, some small rock fragments [RES]
Page 8 of 9

Table 1: PLM Sample Results and Soil Sampling Summary
1804 Phase 1 Dry Ash Landfill (Permit No. 1804-INDUS)
Duke Energy Marshall Steam Station
S&ME Project Number: 212013, Ph. 06
=0
Sample
ID
ProposedS&ME
Proposed
Duke Energy
Date Collected
Actual Sample
Sample Description and Commen
Sample ID
Column Row
Sample Depth
Northing
Easting
Northing
Easting
Yes
No
Date Received
Results
Depth'
Sandy silt (ML) - black, white, reddish brown, fine, non -plastic fines,
3/8/2022
2022006640
AZ 35
0" - 6" 0" - 6"
683402.0
1416849.0
683407.5
1416851.8
X
3/15/2022
ND
micaceous [RES]
Sandy silt (ML) - black, white, brown, yellow, fine, non -plastic fines,
3/8/2022
2022006641
AZ
35
2' - 2.5'
2' - 2.5'
683402.0
1416849.0
683407.5
1416851.8
X
3/15/2022
ND
micaceous [RES]
4/8/2022
2022009402
AZ
41
17' - 18' 5
0" - 6"
Note 3
Note 3
682798.6
1416853.4
X
4/13/2022
ND
Silty sand (SM) - reddish brown, tan, fine, non -plastic fines [RES]
4/8/2022
2022009403
AZ
41
19' - 20' S
2' - 2.5'
Note 3
Note 3
682798.6
1416853.4
X
4/13/2022
ND
Silty sand (SM) - reddish brown, tan, fine, non -plastic fines [RES]
4/8/2022
2022009404
BA
40
17' - 18' 5
0" - 6"
682902.0
1416946.0
682894.6
1416940.5
X
4/13/2022
ND
Silty sand (SM) - light brown, grey, fine to medium, micaceous [RES]
4/8/2022
2022009405
BA
40
19' - 20' S
2' - 2.5'
682902.0
1416946.0
682894.6
1416940.5
X
4/13/2022
ND
Silty sand (SM) - light brown, grey, fine to medium, micaceous [RES]
Notes:
(1) For the purposes of PLM method, Fly Ash is defined as any particle consistent with Coal Combustion Residual (CCR) material.
(2) ND = Not Detected. The PLM Method Reporting Level is 1%; samples with less than 1% CCR are considered ND.
(3) Sample point added in the field to support sampling - not originally included with AECOM soil sampling excavation plan sampling.
Actual sample depths may vary due to sampling method and volume of soil needed for laboratory testing.
2CCR = Coal Combustion Residuals
3Residual Material (RES): Residuum and saprolitic material that is a product of weathered bedrock.
Alluvial Material (ALLUVIAL): unconsolidated material deposited by rivers and streams.
Partially Weathered Rock (PWR): Defined as material that could not be penetrated by hand auqer or geoprobe; or had a standard penetration resistance of N>50 usinq when SPT samplinq with a drill riq.
4United Soil Classification System descriptions are provided for each sample description and are denoted with a two letter abbreviation following the soil type.
Page 9 of 9