1812_Marshall_Q3_2025_ECMPR_FID2156723_20251205

INTERNAL
(' DUKE
ENERGY-.
December 5, 2025
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. Highway 70
Swannanoa, NC 28778
Attn: Ms. Sarah Moutos (submitted electronically)
Re: Environmental Controls Monitoring Plan Semi -Annual Report
Industrial Landfill No.1 - Phase 1, Phase 2, and Leachate Basin
Permit No.: 1812-INDUS-2008
Marshall Steam Station
Terrell, North Carolina 28682
Dear Ms. Moutos:
525 South Tryon St.
Charlotte, NC 28202
Mailing Address
Mail Code DEP 36A
Charlotte, NC 28201-1006
In accordance with the landfill Environmental Control Monitoring Plan, Duke Energy is providing the results of
semi-annual leachate and underdrain sampling and leak detection system monitoring results for the Marshall
Steam Station Industrial Landfill No. 1, located in Terrell, North Carolina.
On August 7, 2025, leachate samples were collected from Phase 1, Phase 2, the leachate basin and an
underdrain sample was collected from Cell 5. The samples were collected by Pace Analytical and analyzed by
the Duke Energy Analytical Laboratory. A summary of sampling results can be found in the attached report
along with the leak detection system monitoring results. The parameters tested are not bound by state
groundwater or surface water standards. The leachate is conveyed to the Station's lined retention basin, which
discharges via a NPDES permitted outfall. All laboratory analytical and field results are provided in the
Appendices.
Marshall Steam Station's Industrial Landfill No. 1 is sampled semi-annually during August and February. The
next landfill sampling event will occur in February 2026 with documentation to follow.
If you need additional information regarding this submittal do not hesitate to email or call me at
Anne. DavinCcDduke-energy.com or [phone].
Respectfully,
0,41 ° &,��
Anne Davin, E.I.
Environmental Services
Attachments: Environmental Controls Monitoring Plan Semiannual Report — March 2025 through August
2025 (SynTerra, December 2025)
www.duke-energy.com Page 1 of 2

INTERNAL
cc (via e-mail): Deana Yitbarek, NCDEQ
Elizabeth Werner, NCDEQ
Sherri Stanley, NCDEQ
Dan Zakary, Duke Energy
Jake Muessen, Duke Energy
Scott La Sala, Duke Energy
Tyler Hardin, Duke Energy
www.duke-energy.com Page 2 of 2

NCDEQ Division of Waste Management Environmental Monitoring
Solid Waste Section Reporting Form
Note: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents
are available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
• Prepare one form for each individually monitored unit. List complete permit IDs (ie, 0101-MSWLF-1972, 0101-CDLF-1962, etc)
• Type or print legibly.
• Groundwater: Attache a notification table with values that attain or exceed NC 2L groundwater standards and/or other applicable groundwater
protection standards.
• Surface Water: Attach a notification table with values that attain or exceed NC 2B surface water standards.
• Landfill Gas: Attach a notification table of any methane gas values that attain or exceed explosive gas levels
• Notification tables must include a preliminary analysis of the cause and significance of each value, as known or suspected.
• Submit electronic or hardcopy singed and sealed form, tables, and Electronic Data Deliverables to the Section Hydrogeologist assigned to the
facility. Hard copies can be mailed to : Environmental Compliance Branch, NCDEQ-DWM, Solid Waste Section, 1646 Mail Service Center,
Raleigh, NC 27699-1646
Solid Waste Monitoring Data Submittal Information
NAME of ENTITY submitting data (ie, laboratory, consultant, facility owner):
SynTerra Corporation (Consultant)
CONTACT:
Name: Thomas Colton Phone: [phone] E-mail: [e-mail]
Permit ID (i.e„ 1010-MSWLF-1980) NC Landfill Rule:
Faci lity Name: * List all that apply * County (.0500 or .1600) Sample Collection Date(s)
Duke Energy Carolinas, LLC 1812 Catawba .0500 August 7, 2025
Marshall Steam Station
Industrial Landfill No. 1
Envi ronmental Status : ( Check al I that apply)
nInitial/Baseline Monitoring n Detection Monitoring Assessment Monitoring ❑ Corrective Action
Type of Data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells e
Groundwater monitoring data from private water supply wells
Leachate monitoring data
Surface water monitoring data Q
Methane gas monitoring data
Corrective action data (specify)
Other (specify)
Notification Attached?
F11
NO. No Groundwater, surface water, or landfill gas standards were exceeded.
YES - a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS; and a
preliminary analysis of the cause and significance of any exceedance.
YES - a notification of values exceeding an explosive gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
CERTIFICATION
To the best of my knowledge, the information reported, and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater or surface water standards or
explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Scott Spinner
Facility Representative Name ( Print)
Project Geologist
Title
12/4/2025 Affix NC Licensed/ Professional Geologist or PE Seal
Signature Date
148 River Street, Suite 220, Greenville SC 29601
Facility Representative Address
C-387 (Geological)
SEAL
2243
NC Geological Corporation Number or NC PE Firm License Number
(if applicable effective May 1 , 2009) Revised
10/01 /2025

REPORT VERIFICATION
PROJECT: ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
MARSHALL STEAM STATION
INDUSTRIAL LANDFILL No. 1
PERMIT NO. 1812-INDUS
TITLE: ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
This document has been reviewed for accuracy and quality commensurate with the intended
application.
Prepared by:
Approved by:
Project Manager: G. Thomas Colton, PE
Date: December 4, 2025
Date: December 4, 2025
Licensed Geologist Seal:
SynTerra
148 River Street, Suite 220
Greenville, SC 29601
North Carolina Geological Corporation Number C-387

Environmental Controls Monitoring Plan
Semiannual Report
March 2025 through August 2025
Marshall Steam Station
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Catawba County, Terrell, North Carolina
(.� DUKE
ENERGY
PREPARED FOR:
Duke Energy Carolinas, LLC
December 4, 2025
Thomas Colton
Project Manager
A - `' � //. t. -
HannA Cunningham
Project Scientist
Scott Spinner, L.G. No. 2243
Senior Peer Reviewer

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Table of Contents
1.0
Background.................................................................................................................................. 1
1.1
Site Description................................................................................................................................... 1
11.1
Landfill.............................................................................................................................................1
1.1.2
Leachate Basin.................................................................................................................................... 2
1.1.3
Underdrain..........................................................................................................................................3
1.1.4
Surface Water..................................................................................................................................... 3
1.2
Summary of Site Geology and Hydrology............................................................................................... 3
2.0
Monitoring, Sampling, and Analysis Locations and Methods............................................................. 4
2.1
Leak Detection System Monitoring....................................................................................................... 4
2.2
Leachate Sampling and Analysis............................................................................................................ 4
2.3
Underdrain Outlet Sampling and Analysis.............................................................................................. 5
2.4
Surface Water Sampling and Analysis.................................................................................................... 5
3.0
Monitoring, Sampling, and Analysis Results..................................................................................... 6
3.1
Leak Detection System Monitoring Results............................................................................................ 6
3.2
Leachate Field and Analytical Results.................................................................................................... 6
3.3
Underdrain Outlet Analytical Results..................................................................................................... 6
3.4
Surface Water Analytical Results........................................................................................................... 7
4.0
References................................................................................................................................... 7
Page i

Environmental Controls Monitoring Plan Semiannual Report
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
List of Drawings
Drawing 1 Site Location Map
Drawing 2 Monitoring Locations
List of Tables
March 2025 through August 2025
Table 1A Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 1
Table 1B Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 2
Table 1C Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 3
Table 1D Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 4
Table 1E Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 5
Table 1F Leak Detection System Monitoring Results — Industrial Landfill No. 1— Cell 6
Table 1G Leak Detection System Monitoring Results — Industrial Landfill No. 1— Leachate Basin
Table 2 Leachate Field and Analytical Results —August 7, 2025
Table 3 Underdrain Field and Analytical Results —August 7, 2025
List of Appendices
Appendix A Field Calibration and Sampling Forms
Appendix B Laboratory Reports, Data Validation Checklists, and Chain -of -Custody Forms
Page J

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
1.0 Background
This Environmental Controls Monitoring Plan Semiannual Report pertains to the Industrial Landfill No. 1 (ILF or
landfill; Permit No. 1812-INDUS)—including Phase 1 (Cells 1 through 4) and Phase 2 (Cells 5 and 6 and
underdrain)—and the Leachate Basin, located at the Duke Energy Carolinas, LLC (Duke Energy) Marshall Steam
Station (Marshall, Plant, or Site). Monitoring results in this report are from March 2025 through August 2025.
The Environmental Controls Monitoring Plan (ECMP) establishes locations and procedures for monitoring early
detection of solid waste or leachate potentially released to the environment from the landfill. The ECMP,
Revision 5 (SynTerra, 2024) was submitted to the North Carolina Department of Environmental Quality (NCDEQ)
Division of Waste Management (DWM) on November 6, 2024, and was approved by the NCDEQ DWM.
The August 2025 sampling event and this report comply with the ECMP, Revision 5 (SynTerra, 2024).
The landfill is designed and constructed in accordance with North Carolina General Statute (NCGS) § 130A-295.4
for Combustion Products Landfills as discussed in the ECMP, Revision 2 Update (SynTerra, 2023). The procedures
established in the ECMP and the associated monitoring documented in this report are intended to satisfy the
water quality monitoring plan required by North Carolina Administrative Code (NCAC), Title 15A, Subchapter 138
.0504(c)(8)(D) in accordance with NCGS § 130A-295.4(c).
1.1 Site Description
Additional Site description information can be found in Section 1.1 of the ECMP, Revision 5 (SynTerra,
2024).
1.1.1 Landfill
The 67.1-acre landfill (Phase 1 and 2) is located north of the Marshall power block and is
bounded by the Duke Energy property line to the north; vacant land and the closed asbestos
and construction and demolition (C&D) debris landfill areas (Permit No. 1804-INDUS) to the
southeast; and the Coal Combustion Residuals (CCR) Structural Fill CCB0031(previously known
as the Photovoltaic Structural Fill) to the west and southwest. The landfill overlies the northern
portion of the historical ash basin, and Future Phase 5 to the southwest will partially overlie
industrial stormwater pond MAR-145 (Drawing 1).
Phase 1 of the landfill is approximately 35.5 acres, and Phase 2 of the landfill is approximately
31.6 acres. Both Phase 1 and 2 are currently operating. Phases 3 and 4 are under construction
but are not operational. Construction has not begun on Future Phase 5. Therefore, Phase 3,
Phase 4, and Future Phase 5 will not be further discussed in this report.
The NCDEQ DWM issued the initial landfill Permit to Operate on March 7, 2011. Phase 1 of the
landfill is constructed over CCR Structural Fill CCB0072 (Landfill Phase I Subgrade), and Phase 2
of the landfill is immediately south of Phase 1. Phase 1, Phase 2, and CCR Structural Fill CCB0072
are situated adjacent to and partially over an upstream area of the historical ash basin waste
boundary (Drawing 2).
Operational flows from the CCR Structural Fill CCB0031 stability feature dewatering systems are
temporarily routed to the Leachate Basin; those flows started in the third quarter of 2024. In
addition, an in -line caustic treatment and static mixer were installed at the Leachate Basin in the
fourth quarter of 2024 to provide additional pH treatment prior to discharge into the Leachate
Basin. The caustic treatment system was commissioned in May 2025 and is now operational.
Page 1

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
The landfill, in accordance with NCGS 130A-295.4(b), is constructed with a base liner system that
includes a primary and secondary geomembrane liner. The primary and secondary liners are
separated by a geocomposite drainage layer to create a leak detection layer. The geocomposite
provides enough capacity to convey liquid that enters the leak detection layer to a sump area
(lowest elevation in an area of the liner system) where it is collected for removal by mechanical
pumping. Removal of liquid from the leak detection layer, in addition to the combination of a
geosynthetic clay liner (GCL) and compacted soil liner beneath the secondary liner, reduces the
potential for liquid to enter the environment. The quantity of liquid removed from the leak
detection layer is measured and recorded.
Each phase of the landfill is divided into cells. Each cell has a sump where the leak detection
system (LDS) is monitored, and leachate is collected for removal from the landfill by mechanical
pumping. A network of drainage features manages stormwater from the landfill and adjacent
area, which is routed to a permitted outfall. No stormwater from the landfill area flows off the
Site property or enters surface water prior to passing through a permitted outfall.
The historical ash basin, which partially underlies the landfill and is adjacent to the leachate
basin, received CCR via sluice lines beginning in 1965 until early 2019. In 1984, Marshall
converted from wet to dry fly ash handling. In 2019, bottom ash was converted from wet to dry
handling and ash sluicing ceased. Duke Energy is authorized to discharge wastewater from the
ash basin to Lake Norman (outfall 005) in accordance with National Pollutant Discharge
Elimination System (NPDES) Permit NC0004987 (Drawing 2).
Most of the waste intended for placement throughout the life of the landfill consists of CCR,
predominantly fly ash and bottom ash. The approved waste stream is provided in the
Operations Plan (AECOM, 2022).
1.1.2 Leachate Basin
The Leachate Basin was constructed with the ILF Phase 2 expansion and began operation in July
2023.
The Leachate Basin is located south of the ILF and is bounded by the historical ash basin to the
north, east, and south and the CCR Structural Fill CCB0031 to the west and southwest (Drawing
2). The Leachate Basin, in accordance with NCAC, Title 15A, Subchapter 13B .1680(e)(2), is
constructed with a base liner system that includes a primary and secondary geomembrane liner.
The primary and secondary liners are separated by a geocomposite drainage layer to create a
leak detection layer. The geocomposite provides enough capacity to convey liquid that enters
the leak detection layer to a sump area where it is collected for removal by mechanical
pumping. Removal of liquid from the leak detection layer, in addition to the combination of a
GCL and compacted soil liner beneath the secondary liner, reduces the potential for liquid to
release into the environment. The quantity of liquid removed from the leak detection layer is
measured and recorded. The Leachate Basin engineered base liners include an LDS that
monitors the integrity of the primary flexible membrane liner.
The leachate of Phases 1 and 2 is conveyed from the landfill to the Leachate Basin via a force
main piping network. The Leachate Basin discharges to the Lined Retention Basin (LRB) where it
is comingled with other Plant low -volume wastewater for treatment. The LRB discharges to Lake
Norman through Outfall 005 in accordance with NPDES Permit NC0004987 (Drawing 2).
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Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
1.1.3 Underdrain
Phase 1 of the landfill is not constructed with an underdrain.
Phase 2 of the landfill is constructed with a blanket underdrain located in the western portion of
the landfill phase (Drawing 2). The underdrain only underlies Cell 5 of Phase 2. The underdrain is
composed of a 2-foot layer of crushed stone aggregate with perforated pipes connecting to a
common sump area for liquid removal by pumping. The top of the underdrain is 4 feet below
the base of the compacted soil liner elevation. Construction completion and startup operations
of the underdrain began in October 2021.
1.1.4 Surface Water
Landfill area stormwater is directed via channels around the perimeter of the landfill to an
NPDES-permitted wastewater unit or NPDES-permitted outfall.
12 Summary of Site Geology and Hydrology
The groundwater system in the natural materials (shallow, deep, and bedrock flow zones) at Marshall
is consistent with the regolith-fractured rock system and is characterized as an unconfined,
interconnected aquifer system indicative of the Piedmont physiographic province in which the Site is
contained. The groundwater system at the Site is divided into the following three layers to distinguish
the interconnected groundwater system: the shallow flow zone, deep (transition zone) flow zone, and
the bedrock (competent bedrock) flow zone.
The landfill is partially situated within an area that was formerly used for the storage or disposal of CCR
(historical ash basin) and beneficial reuse of CCR [Structural Fill CCB0072 (landfill Phase I subgrade)]
(Drawing 1).
The landfill, ash basin, closed historical landfills, and structural fills are contained within a former
perennial stream valley (flow compartment). Groundwater within the flow compartment is a flow -
through system. Groundwater enters the system from the upgradient end near the landfill and flows
laterally through the middle regions and downward near the dam, or downgradient end. Groundwater
divides are located west and north of the landfill, concurrent with topographic ridges along Sherrills
Ford Road to the west and Island Point Road to the north. The primary flow path of the groundwater is
northwest to southeast within the flow compartment. The topographically controlled flow direction
provides natural hydraulic control of constituent migration from the ash basin and adjacent unlined
sources within the flow compartment.
Groundwater downgradient of the landfill is unable to be monitored independently from the ash
basin, closed historical landfills, and structural fills within the same flow compartment because those
source areas have historically been used to store or dispose of CCR.
Additional Site geology and hydrology information is provided in Section 1.2 of the ECMP, Revision 5
(SynTerra, 2024).
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Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
2.0 Monitoring, Sampling, and Analysis Locations and Methods
2.1 Leak Detection System Monitoring
Leak detection monitoring occurs at the Leachate Basin (MSS -LB -LDS) and at each landfill sump,
identified as:
• MSS ILF1-LCS-CELL1 • MSS ILF1-LCS-CELL4
• MSS ILF1-LCS-CELL2 • MSS ILF1-LCS-CELLS
• MSS ILF1-LCS-CELL3 • MSS ILF1-LCS-CELL6
The LDS identification numbers correspond to a landfill cell (Cell 1 through Cell 6 and the leachate
basin). The location of each LDS monitoring location is shown on Drawing 2.
Performance of the LDS is determined by the average monthly quantity of liquid removed from the
leak detection layer. Each landfill cell leak detection discharge pump is equipped with a pump totalizer
(flow meter). The flow meter rates were monitored and recorded as defined in the Operations Plan
(AECOM, 2022). Pump and instrumentation control panel outages occurred during this reporting
period; however, manual readings were used to confirm flows.
Leak detection monitoring results are summarized in Section 3.1.
Z.Z Leachate Sampling and Analysis
Leachate samples are collected at the Leachate Basin at MSS-ILFI-LCSC1. Leachate samples are also
collected near the landfill sump from the leachate collection system (LCS) discharge at the following
locations:
• MSS ILF1-LCS-CELL1 • MSS ILF1-LCS-CELL4
• MSS ILF1-LCS-CELL2 • MSS ILF1-LCS-CELL5
• MSS ILF1-LCS-CELL3 • MSS ILF1-LCS-CELL6
The identification numbers correspond to the landfill cells (Cell 1 through Cell 6 and Leachate Basin).
The location of each leachate monitoring location is shown on Drawing 2.
Discrete leachate samples were collected from in -line valves at locations MSS_ILF1-LCS-CELL1 through
MSS_ILF1-LCS-CELL6 and MSS-ILFI-LCSC1 on August 7, 2025. Pace Analytical personnel (North Carolina
Field Certification #5342) collected samples and documented the sampling event in accordance with
procedures provided in Duke Energy's Landfill Sample Collection Guideline (ECMP Revision 5, Appendix
I; SynTerra, 2024).
Copies of the field calibration and sampling forms are included in Appendix A. The parameters and
constituents reported were sampled in accordance with the ECMP, Revision 5 (SynTerra, 2024) and
the harmonized constituent list approved by the NCDEQ on March 20, 2023. The Duke Energy
Analytical Laboratory (North Carolina Laboratory Certification #248) analyzed the constituents. The
laboratory report and chain -of -custody (COC) forms are included in Appendix B.
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Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
The following field parameters were measured in the leachate samples:
• pH, specific conductivity, temperature, dissolved oxygen, and oxidation-reduction potential
using a water quality meter
• Turbidity using a turbidity meter
The leachate samples were analyzed for the following constituents:
• Barium, boron, calcium, iron, lithium, magnesium, manganese, and zinc using U.S.
Environmental Protection Agency (USEPA) Method 200.7/SW 6010D
• Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, molybdenum, nickel,
selenium, thallium, and vanadium using USEPA Method 200.8/SW 6020B
• Silver using USEPA Method 200.8/SW 6020A
• Mercury using USEPA Method 245.1/SW 7470A
• Chloride, fluoride, nitrate (as nitrogen), and sulfate using USEPA Method 300.0/SW 9056A
• Total dissolved solids using Standard Method (SM) 2540C/EPA 160.1/ASTM D5907
Leachate field parameters and analytical results are summarized in Section 3.2.
Z.3 Underdrain Outlet Sampling and Analysis
A discrete underdrain sample was collected from the MSS_ILF1-UD1 location on August 7, 2025
(Drawing 2). Pace Analytical personnel collected samples and documented the sampling event in
accordance with procedures provided in Duke Energy's Landfill Sample Collection Guideline (ECMP
Revision 5, Appendix I; SynTerra, 2024).
Copies of the field calibration and sampling form are included in Appendix A. The parameters and
constituents reported were sampled in accordance with the ECMP, Revision 5 (SynTerra, 2024) and
harmonized constituent list approved by NCDEQ on March 20, 2023. Duke Energy Analytical
Laboratory analyzed the constituents; the laboratory report and COC forms are included in
Appendix B.
The underdrain sample was measured for the same set of field parameters and constituents as the
leachate samples (Section 2.2).
Underdrain field parameters and analytical results are summarized in Section 3.3.
2.4 Surface Water Sampling and Analysis
Surface water sampling is currently not required for the landfill.
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Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
3.0 Monitoring, Sampling, and Analysis Results
3.1 Leak Detection System Monitoring Results
Leakage rates were less than the Initial Response Leakage Rate (IRLR) and Action Leakage Rate (ALR)
during the reporting period.
Each month, an average daily leakage rate is calculated for each operational landfill cell (Cell 1 through
Cell 6) and the Leachate Basin and compared to the IRLR and ALR for the landfill LDS, as defined in the
Operations Plan (AECOM, 2022).
Average daily leakage rates for Cell 1 through Cell 6 and the leachate basin were calculated as follows:
1. Calculate the monthly total volume pumped (gallons):
monthly volume pumped (gallons) = current month total flow meter reading — preceding month
total flow meter reading
2. Calculate the average daily leakage rate [gallons per acre per day (gpad)]:
average daily leakage rate (gpad) = monthly volume pumped (gallons) - landfill cell area (acres)
monitoring duration (days)
The LDS monitoring results for locations MSS_ILF1-LDS-CELL1 through MSS_ILF1-LDS-CELL6 and the
leachate basin LDS are included in Table 1A through Table 1G. The LDS leakage rate data collection
details are kept with on -Site records.
No leakage rates were outside of the normal range for the landfill.
32 Leachate Field and Analytical Results
Leachate analytical results are not compared to water quality standards.
The leachate field and analytical results for samples MSS_ILF1-LCS-CELL1 through MSS_ILF1-LCS-CELL6
and MSS-ILFI-LCSC1 are included in Table 2.
As normal laboratory practice, select samples were diluted to within the calibrated range of analysis.
Specifics regarding the samples that were diluted, including the dilution factor, are reported in the
electronic data deliverable and the laboratory analytical report. The laboratory analytical report, data
validation checklist, and chain -of -custody form associated with data collected as part of this
semiannual monitoring period are included in Appendix B.
3.3 Underdrain Outlet Analytical Results
Underdrain analytical results are not compared to water quality standards.
The underdrain field and analytical results for sample MSS_ILF1-UD1 are included in Table 3.
The underdrain sample is included in the same laboratory analytical report, data validation checklist,
and chain -of -custody form as the leachate data collected as part of this semiannual monitoring period
(Appendix B).
Page 6

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
3.4 Surface Water Analytical Results
Surface water sampling is currently not required for the landfill; therefore, there are no analytical
results.
4.0 References
AECOM. (2022). Operations Plan — Revision 9-Duke Energy Carolinas, LLC., Marshall Steam Station. -
Industrial Landfill No. 1, Permit No. 1812 Catawba County, Terrell, North Carolina. July 2022.
SynTerra. (2024). Environmental Control Monitoring Plan, Revision 5 — Duke Energy Carolinas, LLC.,
Marshall Steam Station — Industrial Landfill No. 1, Permit No. 1812-INDUS. November 2024.
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Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Drawings

N
INDUSTRIAL LANDFILL NO. 1
PERMIT NO. 1812-INDUS •
CCR STRUCTURAL •� •
FILL CCB0072 I ��• I
� INDUSTRIAL � sf ■ •
STORMWATER ♦ V
13 POND III,* ASBESTOS / •.�"�
MAR-145 PHASE 1 LANDFILL •
C� PERMIT NO. 1804-INDUS •
Ford DUKE ENERGY CAROLINAS _ /
gnat PROPERTY BOUNDARY "1� C&D LANDFILL
Sherrills
Ford PERMIT NO. 1804-INDUS'
♦� ■ PHASE2 .f
•
o m • /—�� DRY ASH LANDFILL
♦ F a� / / / (PHASE II)
o;PERMIT NO. 1804-INDUS
CCR STRUCTURAL F ASH BASIN
■ FUTURE <
FILL CCB0031 W ■ PHASE 4 �. ; r WASTE BOUNDARY
PHASE 5
i PHASE 3
■ I^� �i
LEACHATE
BASIN
li DRY ASH LANDFILL
it(PHASE 1)
j tit` <n�� ^��- ASH BASIN PERMIT NO.1804-INDUS
■ �^
� ♦ 4
FGD RESIDUE ■ \� �\ �1 ''� �
LANDFILL��
PERMIT NO. 1809-INDUS
HOLDING BASIN
LINED RETENTION =�
BASIN ♦ 0 t
COAL PILE e t `
MCDONA(D
NOTES:
1. BOUNDARIES ARE APPROXIMATE.
2. C&D - CONSTRUCTION AND DEMOLITION
3. CCR - COAL COMBUSTION RESIDUALS
4. FGD - FLUE GAS DESULFURIZATION
5.2025 USGS TOPOGRAPHIC MAP, TROUTMAN AND
LAKE NORMAN NORTH QUADRANGLE, OBTAINED FROM
THE USGS NATIONAL MAP AT https://www.usgs.gov.
6. USGS - UNITED STATES GEOLOGICAL SURVEY
. #000"-♦
MARSHALL
STEAM STATION /♦
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DRAWING 1
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SITE LOCATION MAP
ENVIRONMENTAL CONTROLS MONITORING PLAN
SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
ASHEvaLE•
CHARLOTTE
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
synTerra
CATAWBA
COUNTY
DRAWN BY: B. PATTON DATE: 09'09,2025
REVISED BY: H. CUNNINGHAM DATE: 11/13/2025
CHECKED BY: T. COLTON DATE: 11/13/2025
GRAPHIC SCALE
000 o 000 000
(IN FEET)
APPROVED BY: T. COLTON DATE: 11/13/2025
PROJECT MANAGER: T. COLTON
www.svnterracorD.COM

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Tables

TABLE 1A
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 1
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 1 LDS
MONTHLY
MONTHLY
CELL 1
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
2
0.0
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
0
0.0
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
0
0.0
No
No
taken 5/29/2025 &
9.9
6/05/2025
Interpolated manual readings
June 2025
30
6.47
0
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
0
0.0
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
1,361
4.4
No
No
taken 8/28/2025 &
9/03/2025
Prepared by: CSB Checked by: HCC
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System

TABLE 1B
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 2
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 2 LDS
MONTHLY
MONTHLY
CELL 2
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
19,846
66.7
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
7,658
26.6
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
6,959
23.4
No
No
taken 5/29/2025 &
9.6
6/05/2025
Interpolated manual readings
June 2025
30
6.47
10,899
37.8
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
9,914
33.3
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
8,027
27.0
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 1C
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 3
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 3 LDS
MONTHLY
MONTHLY
CELL 3
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
0
0.0
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
0
0.0
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
0
0.0
No
No
taken 5/29/2025 &
7.2
6/05/2025
Interpolated manual readings
June 2025
30
6.47
0
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
0
0.0
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
0
0.0
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 1D
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 4
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 4 LDS
MONTHLY
MONTHLY
CELL 4
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
0
0.0
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
630
2.3
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
1
0.0
No
No
taken 5/29/2025 &
9.1
6/05/2025
Interpolated manual readings
June 2025
30
6.47
0
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
0
0.0
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
515
1.8
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 1E
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 5
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 5 LDS
MONTHLY
MONTHLY
CELL 5
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
1,176
2.8
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
477
1.2
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
10
0.0
No
No
taken 5/29/2025 &
13.7
6/05/2025
Interpolated manual readings
June 2025
30
6.47
6
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
234
0.6
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
3,318
7.8
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 1F
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1- CELL 6
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
CELL 6 LDS
MONTHLY
MONTHLY
CELL 6
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(ACRES)
(INCHES)
(GALLONS)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
1
0.0
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
0
0.0
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
2,038
3.7
No
No
taken 5/29/2025 &
17.9
6/05/2025
Interpolated manual readings
June 2025
30
6.47
1
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
11
0.0
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
4,187
7.5
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 1G
LEAK DETECTION SYSTEM MONITORING RESULTS - INDUSTRIAL LANDFILL NO. 1 - LEACHATE BASIN
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARCH 2O25 THROUGH AUGUST 2025
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NORTH CAROLINA
LEACHATE BASIN LDS
MONTHLY
MONTHLY
LEACHATE
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
PERIOD
DURATION
TOTAL
VOLUME
BASIN
DAILY
LEAKAGE RATE
LEAKAGE RATE
(DAYS)
DAYS
RAINFALL
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR: 316
EXCEEDS ALR: 421
COMMENTS
(INCHES)
(GALLONS)
(ACRES)
RATE (GPAD)
GPAD (YES/NO)
GPAD (YES/NO)
Interpolated manual readings
March 2025
31
2.34
0
0.0
No
No
taken 3/27/2025 &
4/03/2025
Interpolated manual readings
April 2025
30
1.97
0
0.0
No
No
taken 4/24/2025 &
5/01/2025
Interpolated manual readings
May 2025
31
6.85
0
0.0
No
No
taken 5/29/2025 &
1.9
6/05/2025
Interpolated manual readings
June 2025
30
6.47
0
0.0
No
No
taken 6/26/2025 &
7/03/2025
Interpolated manual readings
July 2025
31
3.51
0
0.0
No
No
taken 7/31/2025 &
8/07/2025
Interpolated manual readings
August 2025
31
8.58
0
0.0
No
No
taken 8/28/2025 &
9/03/2025
Notes:
The Action Leakage Rate (ALR) is 421 GPAD.
The Initial Response Leakage Rate (IRLR) is 316 GPAD.
GPAD - gallons per acre per day
LDS - Leak Detection System
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 2
LEACHATE FIELD AND ANALYTICAL RESULTS - AUGUST 7, 2025
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
MARCH 2O25 THROUGH AUGUST 2025
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
Constituent
Cell 1
(MSS_ILF1-LCS-CELL1)
Cell 2
(MSS_ILF1-LCS-CELL2)
Cell 3
(MSS_ILF1-LCS-CELL3)
Cell 4
(MSS_ILF1-LCS-CELL4)
Cell 5
(MSS_ILF1-LCS-CELLS)
Cell 6
(MSS_ILF1-LCS-CELL6)
Leachate Basin
(MSS-ILFI-LCSC1)
In Situ Parameters
pH (S.U.)
5.6
5.8
6.2
5.6
5.6
5.3
5.7
Temperature (Deg C)
20
19
19
20
18
18
21
Specific Conductance (µmhos/cm)
3938
3223
3633
3608
2868
2619
2534
Dissolved Oxygen (mg/L)
3.4
7.1
2.1
0.9
2.8
1.6
4.9
Oxidation -Reduction Potential (mV)
195
186
368
185
130
151
163
Turbidity (NTUs)
4.8
12.7
1 0.7
57.4
28.1
14.4
24.6
Laboratory Analyses
Antimony
0.868 J
2.19
0.497 J
< 2
< 1
< 2
< 2
Arsenic
25.3
21.5
1.69 J
2.05
0.47 J
1.41 J
2.84
Barium
33
34
19
30
22
26
23
Beryllium
1.07 J
0.436 J
< 2
0.412 J
0.598 J
0.865 J
0.365 J
Boron
76900
68700
75300
72600
15700
6500
26600
Cadmium
2.64
2.36
0.863 J
0.798 J
0.327 J
0.716 J
0.732 J
Calcium (mg/L)
447
448
516
415
503
467
405 J
Chloride (mg/L)
110
75
84
80
31
18
38
Chromium
< 2
0.363 J
0.35 J
< 2
0.794 J
< 2
< 2
Cobalt
416
301
0.13 J
240
81.8
70.3
98.0
Copper
29.1
15.2
0.692 J
1.34 J
16.6
3.94
4.06
Fluoride (mg/L)
0.82 J
0.76 J
0.92 J
0.63 J
0.31 J
0.22 J
0.25 J
Iron
19
319
22
11200
40800
40300
12700
Lead
0.288 J
1.59
< 2
0.084 J
< 1
< 2
< 2
Lithium
1970
1930
2820
3240
293
171
741
Magnesium (mg/L)
96.5
80.5
93.8
95.7
88.0
86.3
79.7
Manganese
21900
12600
2810
32300
10400
10100
10200
Mercury
< 0.05 J
< 0.05
< 0.05
< 0.05
< 0.05
< 0.05
< 0.05
Molybdenum
3610
4200
4220
3290
2.37
29.1
427
Nickel
68.7
39.6
10.8
28.2
193
118
80.3
Nitrate (as nitrogen) (mg-N/L)
5.4
3.8
1.7
0.26 J
< 0.46
< 0.46
0.72
Selenium
81.4
159
27.7
2.32
0.916 J
2.07
14.1
Silver
<2
<1
<2
<2
<1
<2
<2
Sulfate (mg/L)
2300 J
2100
2100
2100
1900
1700
1500
Total Dissolved Solids (TDS) (mg/L)
3730
3460
3620
3360
2970
2620
2370
Thallium
2.16
2.39
0.133 J
0.424
0.661
2.07
1.25
Vanadium
2.91
4.93
4.15
0.252 J
< 0.3
0.53 J
0.145 J
Zinc
135
75
30
42
63
133
92
Notes:
Concentrations are in ug/L unless otherwise noted.
Samples collected on August 7, 2025.
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System (BASS) as of 10/6/2025
<- Concentration not detected at or above the adjusted reporting limit.
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
Deg C - degrees Celsius
1 - Value is estimated. The result is below the reporting limit or potentially biased based on data validation.
mg/L - milligrams per liter
mg-N/L - milligrams nitrogen per liter
mV - millivolts
NTUs - nephelometric turbidity units
S.U. - standard units
Prepared by: HCC Checked by: CSB

TABLE 3
UNDERDRAIN FIELD AND ANALYTICAL RESULTS - AUGUST 7, 2025
ENVIRONMENTAL CONTROLS MONITORING PLAN SEMIANNUAL REPORT
MARCH 2O25 THROUGH AUGUST 2025
INDUSTRIAL LANDFILL NO. 1 (PERMIT NO. 1812-INDUS)
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC, TERRELL, NC
Constituent
Underdrain (MSS_ILF1-UD1)
In Situ Parameters
pH (S.U.)
5.8
Temperature (Deg C)
17
Specific Conductance (µmhos/cm)
145.0
Dissolved Oxygen (mg/L)
3.1
Oxidation -Reduction Potential (mV)
90
Turbidity (NTUs)
0
Laboratory Analyses
Antimony
< 1
Arsenic
< 1
Barium
45
Beryllium
< 1
Boron
545
Cadmium
< 1
Calcium (mg/L)
11
Chloride (mg/L)
3.1
Chromium
0.452 J
Cobalt
2.47
Copper
1.96
Fluoride (mg/L)
0.15
Iron
24
Lead
< 1
Lithium
6
Magnesium (mg/L)
3.96
Manganese
406
Mercury
< 0.05
Molybdenum
< 1
Nickel
2.95
Nitrate (as nitrogen) (mg-N/L)
0.38
Selenium
0.932 J
Silver
< 1
Sulfate (mg/L)
27
Total Dissolved Solids (TDS) (mg/L)
71
Thallium
0.049J
Vanadium
<0.3
Zinc
18
Prepared by: CSB Checked by: HCC
Notes•
Concentrations are in ug/L unless otherwise noted.
Samples collected on August 7, 2025.
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System (BASS) as of 10/6/2025.
< - Concentration not detected at or above the adjusted reporting limit.
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
Deg C - degrees Celsius
J - Value is estimated. The result is below the reporting limit or potentially biased based on data validation.
mg/L- milligrams per liter
mg-N/L - milligrams nitrogen per liter
mV - millivolts
NTUs - nephelometric turbidity units
S.U. - standard units
Page 1 of 1

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Appendix A
Field Calibration and Sampling Forms

Document Name: Field data Sheet Date lseued: March 8, 2mT
.- ace/lmlylica7
Iuuing Authoril,r. Pace fhmtrrsville QualilV
I_. .•.. -..rsv _._.. _ -...
Cif t:ce
Client: C 4 Location:-__ \ MC Proect#:M =(. 1' ce Q�gZ�S
Name and Affiliation (Sampler(s): Q11 tt� Qcp Ild Data Sheelt Review:
Name and Affiliation (Inspector): ��h Re
Well Information ++ Date: 0g, /Og/QS— By:
Well ID: ��. l Well Locked:
Well Diameter. ­­M� Construction:
Total Well Depth: ft Multi Factor*: ^—('(Radius/12)2x3.l4x9.49)
Static Water Level: - ft Casing Volume: gallons
Height of Water Column: ft Cal. 3 Volumes: gallons
Pump Intake: {t
Purge Information
Date Purged: /_/ Start: Finish: Purge Rate:
Purging Method:--______ ______ Total Volume Purged: (gallons/mis/L)
_ Sam lin Information
Date Collected: fune Collected: 6°\y`t__ m pm)
Sampling Equipment Used: C „` z instrumentlD:)5• 0%%
Bottle Type Preservation �AnpalysisRequuired
.r-.
........----_-. -. -.. .
Field Measurements/Observations
Sample Temp (°C):_ _Time:_ZV49,__Turbidity (ntu): 4•$ Time: 030N4
Diss Oxy (mg/ L): 3. Time: _ Fe 2+ mg/ L:_ Time:
Specific Cond. (us).. 3�3 Time: Res. Cl nr L 1 � i ^ ( g/ )/(It /L): rime:
Sample pH (s.u.): —_S_ll Time: -- Odor:_„_ -,__. --Time:
ReDox (mV): \y� • ` Tune: L Appearance: C \!r✓ 'Time: _
ReDox (EH value):YSI Pro Plus+200mV 39y.°\ Other: Time:
General/Weather Observations:
Maoluzation Test
Time
Purged
\
Temp.
(eC)
�q•
Diss Oxy.
(mg/L)
Spec.
Cond.
(LIS)
pH (s.u.)
S.6
ReDox
(mV)
1 ti,
Turbidity
(ntu)
Vo ume
removed
(gallons/nits/
L
Water
level (ft)
Other

Document Name: Field data Sheet Date Issued: March 8, 2019
F7/�10�;2-eAnalylicaI I'age: I of
-- - ao:;uiw•nt WlmiWY: F;.C,:I4!_T),001 r::,: A3 I Issuing Author!y. Pace tlnntersville OuaGty -.-........Mhce _..._.._'
Name and Affiliation
Name and Affiliation (Inspector): —
Well Information
Well ID: TLF I-
Well Diameter:
Total Well Depth:
Static Water Level: ft
Height of Water Column:_— ft
rrCM Mara sneer
Project#:&kti ZLF Co..� f:q�ti A�,2Agy
Field Data Sheet Review:
g)up6
Date:Q$`O�as By: B�s�
Well Locked:
Construction. eel tau
Multi Factor*: � (•(Radius/12)2x3,14x7,48]
Casing Volume: gallons
Cal. 3 Volumes: gallons
Pump Intake: ft
Puree Information
Date Pinged: -/ / Start : Finish: �, Purge Rate:. --
Purging Method:_.-_ -_ Total Volume Purged: (gallons/mis/L)
—SaniRling Inform tion _
Date Collected: / i /' Time Collected _ AT „ / pill)
Sampling Equipment Used: C-ir0` Instrument ID: y Ss d2\\ -n
Bottle Type
Field Measurements/Observations
Preservation
Analysis Required
Sample Temp (OC): - 1q A Time: Wq 4_ Turbidity (ntu): � i •� Time �q30
Diss Oxy (mg/L): %. Time: Fe 2+ mg/L: N " Time: �—
Specific Cond. (uS): 3 zZ Time: Res. Cl (mg/L 421tg/L): "rime:
Sample pH (s.u.): S .------- Time: - Odor.
ReDox(mV): cgs. Time: Appearance: rime:
ReDox (EH value):YSI ProPlus+200mV_8.�Other: Time: —�
General/Weather Observations:
/rainy)
Sampler Signature
Stabilization Test
Windrl'S (mph)
Time
Temp.
(aC)
DissOxy.
(Ing/L)
Spec.
SUS) •
PH (s.u.)
;ReD;oxTurbidity
(ntu)
Vo I
removed
(gallons/mis/
Lii.
WaterPurged
level (ft)
Other
�.�
�%,

)mums nt Name: Field data Sheet Date Issued: March 8, 2019
dCeA1V1i41car Page: I of)
. .....!]ocN N•..mb.. C..�RR.6�,� t�::... r.�. Is-,.uing :Authority: Pact, Huntrrsville Qualiia I
Name and Affiliation
Name and Affiliation (Inspector):
Well Information
Well WellIDT T l LQ �e,1i3
Well Diameter:
Total Well Depth:
Static Water Level: `— it
Height of Water Column:_. ft
Well Locked:
Field Data Sheet Review:
Vim < NPR'
Date: By. stirs
Construction
Multi Factor*: (•(Radius/12)2 x 3.14 x 7.481
Casing Volume: gallons
Cal. 3 Volumes: gallons
Pump Intake: - ft
Purge Information
Date Purged: —/ / Start: Finish: �" _� Purge Rate: �—
Purging Method:_ Total Volume Purged: a (gal tolls/ III Is/ L)
Sampling Information
Date Collected Z/ `Z Time Collected:T11"a (aQ1
Sampling Equipment Used: &irIN InstrumentlD:YSL O`iI\ 'Tjm,,�G(2L
Bottle Type
Field Measurements/Observations
Preservation
Analysis Required
- -73 \ -k-_.._.
SampleTemp(IC): 1R.4 Time: �G0O Turbidity(ntu): 'J �l Time: �000
DissOxy(mg/L): '2..� Time: ...---Fe2+mg/L:_ N�_Time:
Specific Cond. (uS): 3633 Time: Res. Cl (nrg/L)/(rg/L) — I'hne:
Sample pH (s.u.): �Z---_--- Time: _ O gl1ToS-_----Time: _� 000
r — —
ReDox (mV): 367.y Time: Appearance rime: �—
ReDox (EH value):YSI ProPlus +200nrV Other: Time:
General/Weather Observations:
(sunny/c uc rainy) Temp.J0_Y.('F) Wind%—S (mph)
Sampler Signature: �_Date:_��1'� S _
Stabilization Test
Time
Purged
Temp,
(°C)
Diss Oxy.
(trrg/L)
Spec
(US)
PH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Vo rune
removed
(gallons/cols/
L
Water
level (ft)
Other
(Q
3
O.
6�.

Document Name: Field data Sheet
Date issued: March 8, 2019
,. .?CCfhY"11yfiCA/
Page: 1 of
Document Number: F-CAR-Fl.D-001•nv.0.i
Issuing Authority: Pace Huntersville Quality
Office
Name and Affiliation
Name and Affiliation (Inspector): —�
Well Information u
Well ID: T- I -
Well Diameter:
Total Well Depth:
Static Water Level: ft
PinlorSiRTA
Construction:
tpwee 01l �2
Field Data Sheet Review:
,�!„)25 Nam'
Date:5p/O,2� /dS By.
Multi Factor*; _ (•(Radius/l2)2x3.t4x7.48l
Casing Volume: -� gallons
Height of Water Column: ft Cal. 3 Volumes: gallons
Pump Intake: ft
Purge Information
Date Purged: — // Start: Finish: Purge Rate:
Purging Method: Total Volume Purged: I (gallons/ in Is/ L)
Sampling Information
Date Collected:_/� / Z S___,_ Time Collected: 1 V,2___ Z'pm) �, \
Sampling Equipment Used: C rt�& Instrument ID: YSI. zw� -T
Bottle Type
Field Measurements/Observations
Preservation
Analysis Required
Sample Temp (nC):
I1A•b
Time:___!rJ
[2 __Turbidity (ntu): Si. _Tire:
Vj I7-
Diss Oxy (mg/L):
Q� A
Time:
_
Fe 2+ mg/ L:�._Time:
JL
Specific Cond. (us):
3�0
-l'ime:
Res. CI (mg/L /gtg/L): '� Time:
S.%
Sample pH(s.u.):
Time:
Odor: 1____� _Time:
\�'L,_
ReDox (mV):
��� 9
Tire:
Appearance;dQat wl
1ri44Time:
�-
ReDox (EH vatue):YSI ProPlus+200n1V 384•-OA—Other: Time
General/Weather
(sunny/d�/raiitny) Temp. (°P) Windj-> (mph)
Sampler Signature, __Date:
Stabilization Test
Time
Purged
Temp.
u
(C)
Diss Oxy.
(mg/ I_)
Spec
Cod.
(uS)
pH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/n11s/
L
Water
level (ft)
Other
1
1
O•
14a
S.G
Ascf.s
S•`i

Document Name: Field data Sheet
Date Issued: March 8, 2019
14!['age:
dCefl/7.7/y/fC.t/
1 of
[7ncum°nl Number. F-CAR-FLU-001-rev.0.7
Issuing Authority: Pace Huntersville Quality
'
Office
` meta uara meet, `
Client: �C �'%Location: @ee2����C Project#:M$$ it:F Cor , J242S
Name and Affiliation (Sampler(s): �­0Cs C Field Data Sheet Review:
$�lli?S Nor
Name and Affiliation (Inspectocl:__ - — /
Well information ;tflsS Date:��`p gla S By:
Well IDZ `L(.5 - 00N.S Well Locked:
Well Diameter: Construction: ee
Total Well Depth: ft Multi Factor*; [•(Radius/l2)2x3.14x7.481
Static Water Level: ft Casing Volume: gallons
Height of Water Column: — ft Cal. 3 Volumes:' gallons
Pump Intake: -------- ft
Purge Information
Date Purged: —/ Start: Finish: Purge Rate: --
Purging Method: Total Volume Purged: (gallons/ntls/L)
Sampling Information �y
Date Collected: 2S _ Time Collected: �V? t __ n/pm) r
Sampling Equipment Used: C�ee,\t—instrument ID: isf- O`1k -T-N
Bottle Type
Field Measurements/Observations
Sample Temp (°C): � OTime:.
Diss Oxy (mg/L): `Z - q Time: _
Specific Cond. (uS): ZgLg Time:
Sample pH (s.u.): S;�O Time: _
ReDox (mV): "rune: _
ReDox (EH value):YSI ProPlus+200mV
Sampler Signature
Stabilization Test
Preservation Analysis Required
Turbidity(ntu):-�•�___Tinle: OZ
Fe 2+ mg/ L: Time: 1
Res. Cl (mg/L)/(ttg/L): • Tbne:'
Odor:A_�___ __Time:1G`i.
Appea rance:VI,t ime:
Other: I.inie: �—
Temp. (°F)
Time
Purged
Temp.
°
(C)
Diss Oxy.
(mg/[.)
Spec.
Cod.
(uS)
pH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/mis/
L
Water
level (ft)
Other

Document Name: Field data Sheet Date Issued: March 8, 2019
8CCf1/k7/y7iCe( Page: 1 of I
-n•�.,^•.••.. ;Pam.^_AR-14.1)nn�-r..r P. Issuing Authoriiv: Pace IF,,t, •.rideduality
•2a`L(;
Name and Affiliation (Sanipter(s):_ Kjjtn - HgGe Field Data Sheet Review: p�
Name and Affiliation (Inspector): --1 6 / 11125 I�'14-
Well Information Date: / By:
Well ID: Ie�+: 1- LGS -CQ\\6 �g��g`as L&
Well Locked:
Well Diameter: Construction:
Total Well Depth: --- it Multi Factor*: � [•(Radius/12)2x3.14x7,48)
Static Water Level:_---__ ft Casing Volume: gallons
Height of Water Column: It Cal. 3 Volumes: gallons
Pump Intake: ft
Purge Information
Date Purged: `/ / -� Start: � Finish: � Purge Rate: �-
Purging Method:_. Total Volume Purged: (gallons/mis/L)
Sampling Information
Date Collected: `` Time Collecteei _"_Qq_ (*pnt)
G
Sampling Equipment Used: r!'Z instrument ID: YSZ -TT%A r,1wL
Bottle Type Preservation Analysis Required
Field Measurements[Observations
Sample Temp (°C): tiC 3 Time: � QOO _Turbidity (ntu): N .4_ Time: a �G
Diss Oxy (mg/L): I . Io Time: — Fe 2+ mg/ L:__-&�_T me: ,-
Specific Cond. (uS): ',HIV Time: Res. CI (n1g/L)/(ltg/L): '1'hne: a
Sample pH (au.); 5.� Time:. Odor:_- N
----I__ .....___Time: _
ReDox (mV): 1 S I . \ Time: _ Appearance: 4\ k\ U "me:
ReDox (EH value):YSI ProPlus +200`m`V '35I , I, I Other: Time:
GeneraVWeatherObservations: �w►piy
/rainy)
Sampler Signature
Stabilization Test
Windt `5 (mph)
Time
Purged
Tetnp.
(aC)
4Oxy.
PH (s.u.)(171V)(ntu)
ReDox
Turbidity
Vo ume
removed
(gallons/mis/
L
Water
level (ft)

Document Name: Field data Sheet
Date Issued: March b, ?019
Page: 1
BCeAitilyfrC.af
of
Ikpumem Number: F-CAR-FLD-001-rev.03
lmdng Authority: Pace Huntersville Quality
Office
Name and Affiliation (SamplerTs): VT 1 1..1 —
Name and Affiliation (inspector);
Well Information
�:f � Well ID: I ^ �CS
Well Diameter:
Total Well Depth:
Static Water Level:
Height of Water Column: ft
Purge Information
Date Purged: Start
Purging
,�ret: A.Jzo�.g
Field Data Sheet Review:
Date. 06; IIO IZ By 61,V-S
Well Locked:
Construction:
e
Multi Factor': —
[•(Radius/l2)2x3.14x7.4$I
Casing Volume:
gallons
Cal. 3 Volumes:
gallons
Pump Intake:
_ ft
Finish: — Purge Rate: —
_Total Volume Purged: (gallons/ mis/ L)
Sampling Information
Date Collected: /1/ZS TinleCollected: 1OS5___-_QVpm) r
Sampling Equipment Used: Ge C." Instrument ID:�JS_ j O q_%%
Bottle Type
Field Measurements/Observations
Preservation
Analysis Required
Sample Temp Cq: 'XI M_Time:,_I.QSS_Turbidity
(ntu): 3y•6_-_Time: VZOSS
Diss Oxy (mg/L): 4 •�,
Time:
_
Fe 2+ mg/ L: _Time:
, —
SpecificCond.(uS): 'Z.S
Time:
Res.CI(mg/L &tg/L): ^—Tone:
Sample pH (s.u.): S .1 -__-
Time:
Orion- `bo ........
_ 6 SS__—
ReDox (mV): I Is3.V
Time:
Appearance: , b. Time:
,--
ReDox (EH value):YS1 ProPlus +200mV
Other:
General/Weather Observations:
Sampler Signature
Stabilization Test
Temp.—70 (OF) Wind sL-S (mph)
1 `2
Time
Purged
Temp.
(eC)
Diss Oxy.
(nlg/L)
Cond.
(US)
pH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/mis/
L
Water
level (ft)
Other
1-tA
Lf.Ck
2srS.
\
`1. t.

BCCAnolyfical
Document Name: Field data Sheet
Date Issued: March 8, 2019
Page: 1 of,
fMcumenl Number: F-CAR-PIA-001-rev.0.3
Issuing Authority: Pace Huntersville Quality
Office
Clienthkt 4 Location:
Name and Affiliation (Sampler(s):
Name and Affiliation (inspector): �—
Well Information
Well ID: I LT- I �7
Well Diameter:
Total Well Depth: ft
Static Water Level: ft
(Field Data Sheet Review:
g /u125
Date: ®8. /©g /, .s By LSMS
Well Locked:
Construction:
Multi Factor*: ' [*(Radius/l2)2 x 3.1# x 7.48)
Casing Volume: gallons
Height of Water Column: ft CaI.3 Volumes: gallons
Pump Intake: ft
Purge Information
Date Purged: — / — / — Start: --� Finish: Purge Rate: ^-
Purging Method: Total Volume Purged: (gallons/ ni Is/ L)
Sampling Information
Date Collected: /% /Z S Time Coflecteci:_ 3,_ " 7 pm)
Sampling Equipment Used: lmo& Instrument ID: fvSI. G2l\ 7r—'k PrL
Bottle Type
Field Measurements/Observations
Sample Temp (1q:
_n_Time:.
Diss Oxy (mg/L):
3 3 Time:
Specific Cond. (uS):
144A6 Tine:
Sample pH (s.u.):
Sk •Q Time:
ReDox (mV):
Time:
Preservation
Analysis Required
Turbidity (ntu): •d.___ Time: �031
Fe 2+ mg/ L: _T!me: L
Res- CI (mg/ (ltg/ L): � 'rbne:-
Odor:_ __.__Time: _7
Appearance: C. eh/ Time:
ReDox (EH value):YST ProPlus+200mV_-1,$"_Other:
General/Weather
/rainy)
Sampler Signature
Stabilization Test
Time: ^
1;t,„ee A Jl14LS
Time
Purged
Temp.
( C)
Diss Oxy.
(mg/L)
Spec.
Cond.
(a5)
pH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/mis/
L
Water
level (ft)
Other
?.
3.1
l �.
S-
•o

14!2ce l/Y1In?/
Document Name: Field data Sheet
Date Issued: March 8, 2019
I Page: 1 of
rN cument Number. F-CAR-17I.11-001-revAl
Issuing Authority: Pace Huntersville Quality
Office
Field Data Sheet
Name and Affiliation (Sampler(s): N-fL 1 " rC%Ct
Name and Affiliation (Inspector):
Well Information
Well ID: 7T�-b � I Well Locked:
_Project N:us S LF- Cow [ 4nCe R hq 202�
Id Data Sheet Review: �l
p11111/�N(O'
Date: ©O / ,g g! c7S By
Well Diameter: Construction:-fFV4;��le5r&teeF)---
Total Well Depth: ft Multi Factor': — [*(Radius/ 12)2 x 3.14 x 7.18]
Static Water Level: ft Casing Volume: gallons
Height of Water Column: — ft Cal. 3 Volumes: gallons
Pump Intake:
Purge Information
Date Purged- — / J _—Start - Finish: -- Purge Rate: �—
Purging Method: Total Volume Purged: (gallons/cols/L)
Samvline Information
Date Collected: I/-7/ 2S _ Time Collected:dg%0e/pm)
Sampling Equipment Used: Cry instrument ID,YS4. 02\k
Bottle Type Preservation Analysis Required
Field Measurements/Observations
Sample Temp (oC): _
__Tin%:
Diss Oxy (mg/L):
Time::
Specific Cond.'US),
'rime:Sample
pH (S.u.):
Time:
ReDox (mV):
Time:
ReDox (EH value):YSI ProPlus +200mV
Sampler Signature
Stabilization Test
Turbidity(nXci-i
Time?
Fe 2+ mg/ L:Time:
Res- CI(ing/Time:
Odor:Time:
Appearance:Time:-
Other:rime:
L_ ..S_ 1'i
Pc -l.11 t_
iny)
Windt-C (mph)
Time
Purged
Temp.
CC)
Diss Oxy.
(mg/L)
Spec
(u'S)
PH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/mis/
L
Water
level (ft)
Other
1S

Document Name: Field data Sheet
Date Issued: March 8, 2019
,. 1ceALtalyfinii
Page: l of t
thxumenl Number: F-CAR-FLD-001•rev.0.9
Issuing Authority: Pace Huntersville Quality
Office
Field Data Sheet
2o2j
Name and Affiliation (Sampler(s): K TV4 - 1'9i.GC Field Data Sheet Review:
Name and Affiliation (Inspector): `dlltl'25
Date:�� ©� a
Well Information �T'
�
Well ID: K Well Locked:
Well Diameter: Construction:
Total Well Depth: ft
Static Water Level ft
Height of Water Column: ---� ft
Multi Factor*: ^ (•(Radius/ 12)2 x 3.14 x 7,481
Casing Volume: gallons
Cal.3 Volumes: gallons
Pump Intake:
/N(?h—
By 6/ f
Puree Information
Date Purged: // — Start: Finish: Purge Rate: ^—
Purging Method: Total Volume Purged: (gallons/ in Is/ L)
Sampling Information
DateCollected: / 2 S Time Collected _t03on pm)
Sampling Equipment Used: , "Bells Instrument
Bottle Type Preservation
Field Measurements/Observations
Sample Temp (eC): _ ____Time'
Diss Oxy (mg/L): Time:
Specific Cond. (uS): Time:
Sample pH (s.u.): Time:
ReDox (mV): Time:
ReDox (EH value):YSI ProPlus+200mV_
General/Weather Observations: C e�1eC
Sampler Signature
Stabilization Test
`Analysis Required
Turbidity (ntu): __
Time:
Fe 2+ mg/ U
Time:
Res. Cl (mg/ L)/(Itg/ L):
Time
Odor:
Time:
Appearance:
Time:-
Other:
time:
T I C. I t C -r_It C
Wind Q'-'> (mph)
Time
Purged
Tenip.
(CC)
Diss Oxy.
(mg/L)
Spec.
Cond.
(us)
pH (s.u.)
ReDox
(mV)
Turbidity
(ntu)
Volume
removed
(gallons/mils/
L
Water
level (ft)
Other
1S

Environmental Controls Monitoring Plan Semiannual Report March 2025 through August 2025
Industrial Landfill No. 1 (Permit No. 1812-INDUS)
Appendix B
Laboratory Reports, Data Validation Checklists,
and Chain -of -Custody Forms

Data Validation Checklist
Facility/Siie
Marshall steam Station
State
NC
Location/Sample IDs
ILF1-LCSC1, ILF1-LCS-CELL1, ILF1-LCS-CELL2, ILF1-LCS-CELL3, ILF1-LCS-CELL4, ILF1-LCS-CELL5,
ILF1-LCS-CELL6, ILF1-UD1
Duke Central Lab
•
Groundwater
❑ Surface Water
❑ Other
/25070186 8/7/2025 8/7/2025 8/27/2025
References:
noSample
0 ❑
National Functional Guidelines for Organic/Inorganic superfund Methods Data Review (USEPA 2020)
Guidance on Environmental Data Verification and Data Validation (USEPA 2002)
Radiochemical Data Verification and Validation (MARLAP Manual Volume I: Chapter 8, 2004)
Receipt and Chain of Custody
1) Do the sample IDs and laboratory analyses recorded on the Chain of Custody match the sample IDs and analyses listed in the laboratory package?
A
❑
a) Do the dates and times of sampling listed on the Chain of Custody match the laboratory report?
0
❑
2) Is the sample temperature upon receipt at the laboratory recorded on the Chain of Custody or sample receipt form?
0
❑
❑
a) Is the sample temperature upon receipt less than 6 degrees Celsius? If NO, then:
❑
❑
0
1) Was the presence of wet ice noted in the cooler? OR
❑
❑
0
IT) Were the samples collected less than two hours prior to receipt at the lab?
0
❑
3) Was the proper sample preservation used, confirmed, and documented on the Chain of Custody and/or sample receipt form?
El0
4) Are there any special notes, exceptions, and/or anomalies listed on the Chain of Custody, sample receipt form, or laboratory report?
0
❑
No
❑
❑
❑
NIA
O
❑
0
5) Was the transfer of custody of the samples properly documented and traceable through signature, date, and time by all persons who relinquished and/or received
custody of the samples?
Batch eAssurance/Quality
6) Was the holding flme for preparation and/or analysis met for each parameter?
a) Total Alkalinity, Bicarbonate Alkalinity, and Carbonate Alkalinity: Analyzed within 14 days of collection
b) Bromide, Chloride, Fluoride, and Sulfate (Anions): Analyzed within 28 days of collection
c) Sulfide: Analyzed within 7 days of collection
❑
0
❑
0
❑
❑
❑
0
d) Total Organic Carbon (TOC) and/or Nitrate -Nitrite: Analyzed within 28 days of collection
e) Total Phosphorus (TP) and Dissolved Phosphorus: Analyzed within 28 days of collection
❑
❑
❑
21
f) Hexavalent Chromium and Dissolved Hexavalent Chromium: Analyzed within 24 hours (unpreserved) / 28 days (preserved) of collection
g) Mercury and Dissolved Mercury: Analyzed within 28 days of collection (preserved)
h) Total Metals and Dissolved Metals: Analyzed within 180 days of collection
1) Total Suspended Solids (TSS) and/or Total Dissolved Solids (TDS): Analyzed within 7 days of collection
0
❑
❑
0
❑
❑
0
❑
❑
❑
❑
21
j) Radionuclides: Analyzed within 180 days of collection
k) Methane: Analyzed within 14 days (preserved) / 7 days (unpreserved) of collection
1) Oil and Grease: Analyzed within 28 days of collection
❑
❑
21
❑
❑
0
❑
7) Are there any qualifiers assigned by the laboratory and if so, are the qualifier definitions provided?
❑
21
❑
8) Method Blank - Were any parameters detected in the laboratory method blank(s)?
❑
❑
0
a) If YES, were any target analyses detected in the samples at concentrations less than ten times the method blank concentration?
❑
0
❑
9) Laboratory Control Sample (LCS) - Were any parameters flagged by the lab as being outside the limits of control in the associated LCS?
❑
❑
21
a) If YES, was the parameter recovery less than 50 percent or greater than 150 percent?
❑
❑
0
b) Were the same parameters detected in the samples?
0
0
2
❑
❑
0
❑
❑
0
10) Matrix Spike Sample (MS/MSD) - Did the laboratory provide matrix spike results? If so, then:
a) Was the original sample spiked a project sample? If so, then:
b) Were any parameters flagged by the lab as being outside the limits of control in the associated matrix spike sample?

No N/A Batch !Assurance/Quality
p
❑ ❑ 11) laboratory Duplicate Sample -Did the laboratory provide lab duplicate sample results? If so, then:
❑
0
a) Was the sample analyzed as a laboratory duplicate a project sample? If so, then:
❑
❑
p b) Were any parameters flagged by the lab as being outside the limits of control in the laboratory duplicate sample?
❑
0
❑ 12) Field Duplicate Sample - Is the relative percent difference between the parent and field duplicate sample results greater than 35 percent?
p
❑
13) Field/Equipment/Trip Blanks - Were any parameters detected in the associated field, equipment, and/or trip blanks?
El
a) If yes, were any target analytes detected in the samples at a concentration less than ten times the Field/Equipment/Trip Blank concentration?
p
❑
❑
14) Were initial and continuing calibration blank information within acceptable criteria per the lab report?
0
❑
El15)
Were any reporting limits for diluted, non -detect results greater than the screening criteria?
❑ ❑ p 16) Radionuclides: Are quality control sample results provided?
❑ ❑ 0 a) Are any results flagged or qualified?
❑ ❑ 0 b) Are Uncertainty, Minimum Detectable Concentration (MDC), and Tracer and/or Carrier % Recoveries provided for each sample?
11111111111111100
Lab Qualifiers:
J-Analyte detected above the MDL, but below the RL; analyte concentration should be considered an estimate.
M - MS and/or MSD recovery was outside of the control limits; the associated LCS recovery was acceptable.
M4 -The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level; the associated LCS recovery was acceptable.
U-Analyte was analyzed for, but not detected above the MDL.
Validation Qualifiers:
R- Result is unusable. The sample result is rejected due to serious deficiencies in meeting quality control criteria; the analyte may or may not be present in the sample.
J - Value is estimated. The result is below the reporting limit or potentially biased based on data validation.
U-Analyte was analyzed for but not detected above the minimum detectable concentration (MDC) or method detection limit (MDL).
B -Target analyte detected in the method blank and in the sample at a concentration less than lox the blank concentration.
• Sulfate MS/MSD % recoveries low for ILF1-LCS-CELL1 (M4).
• Mercury MS/MSD % recoveries low for ILFl-LCS-CELL1(M).
• Calcium MS % recovery low (MSD ok) for ILFl-LCSCl (M4).
• Chloride (0.02 mg/L), Nitrate (0.05 mg/L), Nitrate as N (0.01 mg-N/L), and Sulfate (0.04 mg/L) were detected in the Field Blank; these analytes were not detected in the samples at
concentrations less than lox the blank concentrations.
• Due to a dilution factor of 2, the Antimony reporting limit (2 ug/L) is greater than the NCAC 02L Groundwater Standard (1 ug/L) and several results were reported as non -detect.
Review Determination: 0 Usable ❑ Usable with Required Actions ❑ Unusable
Initials/Signatures: Date:
Data Quality Reviewer REB 9/29/2025
Technical Lead

DUKE Analytical Laboratory Page 1of27
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
Order Number: J25070186
Project Name: MARSHALL - INDUSTRIAL LANDFILL 1
Task Code: LF
Customer Name(s): Anne Davin, Bryan Moeller, Dee Obrien,Josh Stowe
Customer Address: Marshall Steam Station
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: Pell t;_ &V. aDate: 8/27/2025
(Signature)
Peggy endall
Program Comments:
QC Note: ILF1-LCS-CELL1 Hg MS/MSD recoveries fell below the QC limits. The blank and LCS were within the control limits.
Data Flags & Calculations:
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. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package, Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub -contracted Laboratory Results, Customer Specific Data Sheets, Reports &
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody (COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR) Certificate #248, South Carolina
(DHEC) Laboratory ID # 99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions:
Collection
Sample ID Plant/Station Date and Time
Collected By Sample Description
Page 2 of 27
2025017008
MARSHALL
07-Aug-25
9:44 AM
Andrew Wolford
MSS_ILF1-LCS-CELL1
2025017009
MARSHALL
07-Aug-25
9:30 AM
Andrew Wolford
MSS_ILF1-LCS-CELL2
2025017010
MARSHALL
07-Aug-25
10:00 AM
Andrew Wolford
MSS_ILF1-LCS-CELL3
2025017011
MARSHALL
07-Aug-25
10:12 AM
Andrew Wolford
MSS_ILF1-LCS-CELL4
2025017012
MARSHALL
07-Aug-25
10:24 AM
Andrew Wolford
MSS_ILF1-LCS-CELL5
2025017013
MARSHALL
07-Aug-25
9:00 AM
Andrew Wolford
MSS_ILF1-LCS-CELL6
2025017014
MARSHALL
07-Aug-25
10:55 AM
Andrew Wolford
MSS_ILF1-LCSC1
2025017015
MARSHALL
07-Aug-25
10:37 AM
Andrew Wolford
MSS_ILF1-UD1
2025017016
MARSHALL
07-Aug-25
Andrew Wolford
MSS_FD-20250807-1
2025017017
MARSHALL
07-Aug-25
10:30 AM
Andrew Wolford
MSS_FB-20250807-1030
10 Total Samples

Page 3 of 27
Technical Validation Review
Checklist:
COC and .pdf report are in agreement with sample totals❑ Yes ❑ No
and analyses (compliance programs and procedures).
All Results are less than the laboratory reporting limits. ❑ Yes 0 No
All laboratory QA/QC requirements are acceptable.❑ Yes ❑ No
Report Sections Included:
❑d Job Summary Report
❑d Sample Identification
❑� Technical Validation of Data Package
❑� Analytical Laboratory Certificate of Analysis
❑� Analytical Laboratory QC Report
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑� Chain of Custody
❑� Electronic Data Deliverable (EDD) Sent Separately
Reviewed By: Peggy Kendall Date: 8/27/2025

Certificate of Laboratory Analysis Page 4 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL1 Sample #: 2025017008
Collection Date: 08/07/2025 09:44 AM Loc code: MSS ILF1-LCS-CELL1 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 110 mg/L
Fluoride 0.82 J mg/L
Nitrate 24 mg/L
Nitrate as N 5.4 mg-N/L
Sulfate 2300 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.033
mg/L
Boron (B)
76.9
mg/L
Calcium (Ca)
447
mg/L
Iron (Fe)
0.019
mg/L
Lithium (Li)
1.97
mg/L
Magnesium (Mg)
96.5
mg/L
Manganese (Mn)
21.9
mg/L
Zinc (Zn)
0.135
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.868 J
ug/L
Arsenic (As)
25.3
ug/L
Beryllium (Be)
1.07 J
ug/L
Cadmium (Cd)
2.64
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
416
ug/L
Copper (Cu)
29.1
ug/L
Lead (Pb)
0.288 J
ug/L
Molybdenum (Mo)
3610
ug/L
Nickel (Ni)
68.7
ug/L
Selenium (Se)
81.4
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
2.16
ug/L
Vanadium (V) Low Level
2.91
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 3730 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 18:14
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 18:14
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 18:14
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 18:14
BGN9034
M4 50
0.041
500
EPA 9056A
08/07/2025 18:14
BGN9034
M 0.05
0.01
1
EPA 7470A
08/12/2025 07:16
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 12:56
DDAUZVA
0.5
0.0046
10
SW 601OD
08/15/2025 12:56
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 12:56
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 12:56
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 12:56
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 12:56
DDAUZVA
0.05
0.0007
10
SW 601OD
08/15/2025 12:56
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 12:56
DDAUZVA
2
0.1259
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.168
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.3106
2
SW 6020E
08/13/2025 16:11
SNEGLIA
2
0.0403
2
SW 6020E
08/13/2025 16:11
SNEGLIA
2
0.2894
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.1287
2
SW 6020E
08/13/2025 16:11
SNEGLIA
2
0.1994
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.0579
2
SW 6020E
08/13/2025 16:11
SNEGLIA
100
0.1066
100
SW 6020E
08/13/2025 16:11
SNEGLIA
2
0.1004
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.2052
2
SW 6020B
08/13/2025 16:11
SNEGLIA
2
0.0521
2
SW 6020E
08/13/2025 16:11
SNEGLIA
0.4
0.0326
2
SW 6020B
08/13/2025 16:11
SNEGLIA
0.6
0.1119
2
SW 6020E
08/13/2025 16:11
SNEGLIA
100
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 5 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL2 Sample #: 2025017009
Collection Date: 08/07/2025 09:30 AM Loc code: MSS ILF1-LCS-CELL2 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 75 mg/L
Fluoride 0.76 J mg/L
Nitrate 17 mg/L
Nitrate as N 3.8 mg-N/L
Sulfate 2100 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.034
mg/L
Boron (B)
68.7
mg/L
Calcium (Ca)
448
mg/L
Iron (Fe)
0.319
mg/L
Lithium (Li)
1.93
mg/L
Magnesium (Mg)
80.5
mg/L
Manganese (Mn)
12.6
mg/L
Zinc (Zn)
0.075
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
2.19
ug/L
Arsenic (As)
21.5
ug/L
Beryllium (Be)
0.436 J
ug/L
Cadmium (Cd)
2.36
ug/L
Chromium (Cr)
0.363 J
ug/L
Cobalt (Co)
301
ug/L
Copper (Cu)
15.2
ug/L
Lead (Pb)
1.59
ug/L
Molybdenum (Mo)
4200
ug/L
Nickel (Ni)
39.6
ug/L
Selenium (Se)
159
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
2.39
ug/L
Vanadium (V) Low Level
4.93
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 3460 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 19:01
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:01
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:01
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 19:01
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 19:01
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:24
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:00
DDAUZVA
0.5
0.0046
10
SW 601OD
08/15/2025 13:00
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:00
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:00
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:00
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:00
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 13:00
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:00
DDAUZVA
1
0.1259
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.168
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.3106
1
SW 6020E
08/13/2025 15:03
SNEGLIA
1
0.0403
1
SW 6020E
08/13/2025 15:03
SNEGLIA
1
0.2894
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.1287
1
SW 6020E
08/13/2025 15:03
SNEGLIA
1
0.1994
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.0579
1
SW 6020E
08/13/2025 15:03
SNEGLIA
100
0.1066
100
SW 6020E
08/13/2025 15:03
SNEGLIA
1
0.1004
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.2052
1
SW 6020B
08/13/2025 15:03
SNEGLIA
1
0.0521
1
SW 6020E
08/13/2025 15:03
SNEGLIA
0.2
0.0326
1
SW 6020B
08/13/2025 15:03
SNEGLIA
0.3
0.1119
1
SW 6020E
08/13/2025 15:03
SNEGLIA
100
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 6 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL3 Sample #: 2025017010
Collection Date: 08/07/2025 10:00 AM Loc code: MSS ILF1-LCS-CELL3 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 84 mg/L
Fluoride 0.92 J mg/L
Nitrate 7.5 mg/L
Nitrate as N 1.7 mg-N/L
Sulfate 2100 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.019
mg/L
Boron (B)
75.3
mg/L
Calcium (Ca)
516
mg/L
Iron (Fe)
0.022
mg/L
Lithium (Li)
2.82
mg/L
Magnesium (Mg)
93.8
mg/L
Manganese (Mn)
2.81
mg/L
Zinc (Zn)
0.030
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.497 J
ug/L
Arsenic (As)
1.69 J
ug/L
Beryllium (Be)
0.3106 U
ug/L
Cadmium (Cd)
0.863 J
ug/L
Chromium (Cr)
0.35 J
ug/L
Cobalt (Co)
0.13 J
ug/L
Copper (Cu)
0.692 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
4220
ug/L
Nickel (Ni)
10.8
ug/L
Selenium (Se)
27.7
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.133 J
ug/L
Vanadium (V) Low Level
4.15
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 3620 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 19:17
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:17
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:17
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 19:17
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 19:17
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:27
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:04
DDAUZVA
0.5
0.0046
10
SW 601OD
08/15/2025 13:04
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:04
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:04
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:04
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:04
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 13:04
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:04
DDAUZVA
2
0.1259
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.168
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.3106
2
SW 6020E
08/13/2025 16:19
SNEGLIA
2
0.0403
2
SW 6020E
08/13/2025 16:19
SNEGLIA
2
0.2894
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.1287
2
SW 6020E
08/13/2025 16:19
SNEGLIA
2
0.1994
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.0579
2
SW 6020E
08/13/2025 16:19
SNEGLIA
100
0.1066
100
SW 6020E
08/13/2025 16:19
SNEGLIA
2
0.1004
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.2052
2
SW 6020B
08/13/2025 16:19
SNEGLIA
2
0.0521
2
SW 6020E
08/13/2025 16:19
SNEGLIA
0.4
0.0326
2
SW 6020B
08/13/2025 16:19
SNEGLIA
0.6
0.1119
2
SW 6020E
08/13/2025 16:19
SNEGLIA
100
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 7 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL4 Sample #: 2025017011
Collection Date: 08/07/2025 10:12 AM Loc code: MSS ILF1-LCS-CELL4 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 80 mg/L
Fluoride 0.63 J mg/L
Nitrate 1.1 J mg/L
Nitrate as N 0.26 J mg-N/L
Sulfate 2100 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.030
mg/L
Boron (B)
72.6
mg/L
Calcium (Ca)
415
mg/L
Iron (Fe)
11.2
mg/L
Lithium (Li)
3.24
mg/L
Magnesium (Mg)
95.7
mg/L
Manganese (Mn)
32.3
mg/L
Zinc (Zn)
0.042
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
2.05
ug/L
Beryllium (Be)
0.412 J
ug/L
Cadmium (Cd)
0.798 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
240
ug/L
Copper (Cu)
1.34 J
ug/L
Lead (Pb)
0.084 J
ug/L
Molybdenum (Mo)
3290
ug/L
Nickel (Ni)
28.2
ug/L
Selenium (Se)
2.32
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.424
ug/L
Vanadium (V) Low Level
0.252 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 3360 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 19:33
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:33
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:33
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 19:33
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 19:33
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:29
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:08
DDAUZVA
0.5
0.0046
10
SW 601OD
08/15/2025 13:08
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:08
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:08
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:08
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:08
DDAUZVA
0.05
0.0007
10
SW 601OD
08/15/2025 13:08
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:08
DDAUZVA
2
0.1259
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.168
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.3106
2
SW 6020E
08/13/2025 16:27
SNEGLIA
2
0.0403
2
SW 6020E
08/13/2025 16:27
SNEGLIA
2
0.2894
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.1287
2
SW 6020E
08/13/2025 16:27
SNEGLIA
2
0.1994
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.0579
2
SW 6020E
08/13/2025 16:27
SNEGLIA
100
0.1066
100
SW 6020E
08/13/2025 16:27
SNEGLIA
2
0.1004
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.2052
2
SW 6020B
08/13/2025 16:27
SNEGLIA
2
0.0521
2
SW 6020E
08/13/2025 16:27
SNEGLIA
0.4
0.0326
2
SW 6020B
08/13/2025 16:27
SNEGLIA
0.6
0.1119
2
SW 6020E
08/13/2025 16:27
SNEGLIA
100
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 8 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL5 Sample #: 2025017012
Collection Date: 08/07/2025 10:24 AM Loc code: MSS ILF1-LCS-CELL5 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 31 mg/L
Fluoride 0.31 J mg/L
Nitrate 0.04 U mg/L
Nitrate as N 0.002 U mg-N/L
Sulfate 1900 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.022
mg/L
Boron (B)
15.7
mg/L
Calcium (Ca)
503
mg/L
Iron (Fe)
40.8
mg/L
Lithium (Li)
0.293
mg/L
Magnesium (Mg)
88.0
mg/L
Manganese (Mn)
10.4
mg/L
Zinc (Zn)
0.063
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
0.47 J
ug/L
Beryllium (Be)
0.598 J
ug/L
Cadmium (Cd)
0.327 J
ug/L
Chromium (Cr)
0.794 J
ug/L
Cobalt (Co)
81.8
ug/L
Copper (Cu)
16.6
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
2.37
ug/L
Nickel (Ni)
193
ug/L
Selenium (Se)
0.916 J
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.661
ug/L
Vanadium (V) Low Level
0.1119 U
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 2970 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 19:49
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:49
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 19:49
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 19:49
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 19:49
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:32
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.05
0.0046
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:12
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 13:12
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:12
DDAUZVA
1
0.1259
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.168
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.3106
1
SW 6020E
08/13/2025 15:20
SNEGLIA
1
0.0403
1
SW 6020E
08/13/2025 15:20
SNEGLIA
1
0.2894
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.1287
1
SW 6020E
08/13/2025 15:20
SNEGLIA
1
0.1994
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.0579
1
SW 6020E
08/13/2025 15:20
SNEGLIA
1
0.1066
1
SW 6020E
08/13/2025 15:20
SNEGLIA
1
0.1004
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.2052
1
SW 6020B
08/13/2025 15:20
SNEGLIA
1
0.0521
1
SW 6020E
08/13/2025 15:20
SNEGLIA
0.2
0.0326
1
SW 6020B
08/13/2025 15:20
SNEGLIA
0.3
0.1119
1
SW 6020E
08/13/2025 15:20
SNEGLIA
50
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 9 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCS-CELL6 Sample #: 2025017013
Collection Date: 08/07/2025 09:00 AM Loc code: MSS ILF1-LCS-CELL6 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 18 mg/L
Fluoride 0.22 J mg/L
Nitrate 0.04 U mg/L
Nitrate as N 0.002 U mg-N/L
Sulfate 1700 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.026
mg/L
Boron (B)
6.50
mg/L
Calcium (Ca)
467
mg/L
Iron (Fe)
40.3
mg/L
Lithium (Li)
0.171
mg/L
Magnesium (Mg)
86.3
mg/L
Manganese (Mn)
10.1
mg/L
Zinc (Zn)
0.133
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
1.41 J
ug/L
Beryllium (Be)
0.865 J
ug/L
Cadmium (Cd)
0.716 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
70.3
ug/L
Copper (Cu)
3.94
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
29.1
ug/L
Nickel (Ni)
118
ug/L
Selenium (Se)
2.07
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
2.07
ug/L
Vanadium (V) Low Level
0.53 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 2620 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 20:05
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:05
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:05
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 20:05
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 20:05
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:35
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.05
0.0046
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:16
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 13:16
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:16
DDAUZVA
2
0.1259
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.168
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.3106
2
SW 6020E
08/13/2025 16:36
SNEGLIA
2
0.0403
2
SW 6020E
08/13/2025 16:36
SNEGLIA
2
0.2894
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.1287
2
SW 6020E
08/13/2025 16:36
SNEGLIA
2
0.1994
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.0579
2
SW 6020E
08/13/2025 16:36
SNEGLIA
2
0.1066
2
SW 6020E
08/13/2025 16:36
SNEGLIA
2
0.1004
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.2052
2
SW 6020B
08/13/2025 16:36
SNEGLIA
2
0.0521
2
SW 6020E
08/13/2025 16:36
SNEGLIA
0.4
0.0326
2
SW 6020B
08/13/2025 16:36
SNEGLIA
0.6
0.1119
2
SW 6020E
08/13/2025 16:36
SNEGLIA
50
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-LCSC1
Collection Date: 08/07/2025 10:55 AM Loc code: MSS ILF1-LCSC1
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 38 mg/L
Fluoride 0.25 J mg/L
Nitrate 3.2 mg/L
Nitrate as N 0.72 mg-N/L
Sulfate 1500 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.023
mg/L
Boron (B)
26.6
mg/L
Calcium (Ca)
405
mg/L
Iron (Fe)
12.7
mg/L
Lithium (Li)
0.741
mg/L
Magnesium (Mg)
79.7
mg/L
Manganese (Mn)
10.2
mg/L
Zinc (Zn)
0.092
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
2.84
ug/L
Beryllium (Be)
0.365 J
ug/L
Cadmium (Cd)
0.732 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
98.0
ug/L
Copper (Cu)
4.06
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
427
ug/L
Nickel (Ni)
80.3
ug/L
Selenium (Se)
14.1
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
1.25
ug/L
Vanadium (V) Low Level
0.145 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080162
TDS 2370 mg/L
Sample #: 2025017014
Matrix: GW RCRA
Page 10 of 27
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 20:20
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:20
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:20
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 20:20
BGN9034
20
0.041
200
EPA 9056A
08/07/2025 20:20
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:37
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 12:44
DDAUZVA
0.5
0.0046
10
SW 601OD
08/15/2025 12:44
DDAUZVA
M4 0.5
0.0124
10
SW 601OD
08/15/2025 12:44
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 12:44
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 12:44
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 12:44
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 12:44
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 12:44
DDAUZVA
2
0.1259
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.168
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.3106
2
SW 6020E
08/13/2025 16:44
SNEGLIA
2
0.0403
2
SW 6020E
08/13/2025 16:44
SNEGLIA
2
0.2894
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.1287
2
SW 6020E
08/13/2025 16:44
SNEGLIA
2
0.1994
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.0579
2
SW 6020E
08/13/2025 16:44
SNEGLIA
2
0.1066
2
SW 6020E
08/13/2025 16:44
SNEGLIA
2
0.1004
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.2052
2
SW 6020B
08/13/2025 16:44
SNEGLIA
2
0.0521
2
SW 6020E
08/13/2025 16:44
SNEGLIA
0.4
0.0326
2
SW 6020B
08/13/2025 16:44
SNEGLIA
0.6
0.1119
2
SW 6020E
08/13/2025 16:44
SNEGLIA
50
25
1
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 11 of27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-UD1 Sample #: 2025017015
Collection Date: 08/07/2025 10:37 AM Loc code: MSS ILF1-UD1 Matrix: GW RCRA
Analyte
Result
Units
Qualifiers RDL
MDL
INORGANIC IONS BY IC - Q25080118
Chloride
3.1
mg/L
0.1
0.015
Fluoride
0.15
mg/L
0.1
0.04
Nitrate
1.7
mg/L
0.1
0.04
Nitrate as N
0.38
mg-N/L
0.023
0.002
Sulfate
27
mg/L
1
0.041
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg)
0.01 U
ug/L
0.05
0.01
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
- Q25080135
Zinc (Zn)
0.018
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.045
mg/L
0.005
0.0011
Boron (B)
0.545
mg/L
0.05
0.0046
Calcium (Ca)
11.0
mg/L
0.05
0.0124
Iron (Fe)
0.024
mg/L
0.01
0.0033
Lithium (Li)
0.006
mg/L
0.005
0.0027
Magnesium (Mg)
3.96
mg/L
0.02
0.0039
Manganese (Mn)
0.406
mg/L
0.005
0.0007
Zinc (Zn)
0.009 J
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) 025080141
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
Cadmium (Cd)
0.0403 U
ug/L
1
0.0403
Chromium (Cr)
0.502 J
ug/L
1
0.2894
Copper (Cu)
2.14
ug/L
1
0.1994
Lead (Pb)
0.0579 U
ug/L
1
0.0579
Nickel (Ni)
3.05
ug/L
1
0.1004
Silver (Ag)
0.0521 U
ug/L
1
0.0521
DF
Method
Analysis Date/Time
Analyst
1
EPA 9056A
08/07/2025 20:36
BGN9034
1
EPA 9056A
08/07/2025 20:36
BGN9034
1
EPA 9056A
08/07/2025 20:36
BGN9034
1
EPA 9056A
08/07/2025 20:36
BGN9034
10
EPA 9056A
08/07/2025 20:36
BGN9034
1
EPA 7470A
08/12/2025 07:40
SNEGLIA
1
SW 601OD
08/11/2025 18:10
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 601OD
08/11/2025 11:28
DDAUZVA
1
SW 6020B
08/13/2025 12:23
SNEGLIA
1
SW 6020B
08/13/2025 12:23
SNEGLIA
1
SW 6020E
08/13/2025 12:23
SNEGLIA
1
SW 6020B
08/13/2025 12:23
SNEGLIA
1
SW 6020E
08/13/2025 12:23
SNEGLIA
1
SW 6020B
08/13/2025 12:23
SNEGLIA
1
SW 6020B
08/13/2025 12:23
SNEGLIA

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS ILF1-UD1
Collection Date: 08/07/2025 10:37 AM Loc code: MSS ILF1-UD1
Analyte
Result
Units Qualifiers
RDL
MDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q25080144
Antimony (Sb)
0.1259 U
ug/L
1
0.1259
1
Arsenic (As)
0.168 U
ug/L
1
0.168
1
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
1
Cadmium (Cd)
0.0403 U
ug/L
1
0.0403
1
Chromium (Cr)
0.452 J
ug/L
1
0.2894
1
Cobalt (Co)
2.47
ug/L
1
0.1287
1
Copper (Cu)
1.96
ug/L
1
0.1994
1
Lead (Pb)
0.0579 U
ug/L
1
0.0579
1
Molybdenum (Mo)
0.1066 U
ug/L
1
0.1066
1
Nickel (Ni)
2.95
ug/L
1
0.1004
1
Selenium (Se)
0.932 J
ug/L
1
0.2052
1
Silver (Ag)
0.0521 U
ug/L
1
0.0521
1
Thallium (TI) Low Level
0.049 J
ug/L
0.2
0.0326
1
Vanadium (V) Low Level
0.1119 U
ug/L
0.3
0.1119
1
TOTAL DISSOLVED SOLIDS - Q25080162
TDS
71.0
mg/L
25
25
1
Sample #: 2025017015
Matrix: GW RCRA
Page 12 of 27
Method
Analysis Date/Time
Analyst
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SW 6020B
08/13/2025 14:04
SNEGLIA
SW 6020E
08/13/2025 14:04
SNEGLIA
SM2540C
08/11/202514:45
LELL107

Certificate of Laboratory Analysis Page 13 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS_FD-20250807-1 Duplicate Sample #: 2025017016
Collection Date: 08/07/2025 Loc code: MSS FD Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 18 mg/L
Fluoride 0.16 J mg/L
Nitrate 0.04 U mg/L
Nitrate as N 0.002 U mg-N/L
Sulfate 1700 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.026
mg/L
Boron (B)
6.67
mg/L
Calcium (Ca)
463
mg/L
Iron (Fe)
40.3
mg/L
Lithium (Li)
0.176
mg/L
Magnesium (Mg)
87.3
mg/L
Manganese (Mn)
10.0
mg/L
Zinc (Zn)
0.131
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
1.42
ug/L
Beryllium (Be)
0.792 J
ug/L
Cadmium (Cd)
0.676 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
71.4
ug/L
Copper (Cu)
3.67
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
27.7
ug/L
Nickel (Ni)
119
ug/L
Selenium (Se)
2.18
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
2.05
ug/L
Vanadium (V) Low Level
0.530
ug/L
TOTAL DISSOLVED SOLIDS -
025080185
TDS 2650 mg/L
Method Analysis Date/Time Analyst
2
0.015
20
EPA 9056A
08/07/2025 20:52
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:52
BGN9034
2
0.04
20
EPA 9056A
08/07/2025 20:52
BGN9034
0.46
0.002
20
EPA 9056A
08/07/2025 20:52
BGN9034
50
0.041
500
EPA 9056A
08/07/2025 20:52
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:43
SNEGLIA
0.005
0.0011
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.05
0.0046
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.5
0.0124
10
SW 601OD
08/15/2025 13:20
DDAUZVA
0.01
0.0033
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.005
0.0027
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.02
0.0039
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.005
0.0007
1
SW 601OD
08/15/2025 13:20
DDAUZVA
0.015
0.0011
1
SW 601OD
08/15/2025 13:20
DDAUZVA
1
0.1259
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.168
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.3106
1
SW 6020E
08/13/2025 15:28
SNEGLIA
1
0.0403
1
SW 6020E
08/13/2025 15:28
SNEGLIA
1
0.2894
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.1287
1
SW 6020E
08/13/2025 15:28
SNEGLIA
1
0.1994
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.0579
1
SW 6020E
08/13/2025 15:28
SNEGLIA
1
0.1066
1
SW 6020E
08/13/2025 15:28
SNEGLIA
1
0.1004
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.2052
1
SW 6020B
08/13/2025 15:28
SNEGLIA
1
0.0521
1
SW 6020E
08/13/2025 15:28
SNEGLIA
0.2
0.0326
1
SW 6020B
08/13/2025 15:28
SNEGLIA
0.3
0.1119
1
SW 6020E
08/13/2025 15:28
SNEGLIA
100
25
1
SM2540C
08/12/202513:27
GBOLIN

Certificate of Laboratory Analysis Page 14 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Site: MSS FB-20250807-1030 Field Blank Sample #: 2025017017
Collection Date: 08/07/2025 10:30 AM Loc code: MSS QA Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080118
Chloride 0.02 J mg/L
Fluoride 0.04 U mg/L
Nitrate 0.05 J mg/L
Nitrate as N 0.01 J mg-N/L
Sulfate 0.04 J mg/L
MERCURY (COLD VAPOR) IN WATER - Q25080164
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080136
Barium (Ba)
0.0011 U
mg/L
Boron (B)
0.0046 U
mg/L
Calcium (Ca)
0.0124 U
mg/L
Iron (Fe)
0.0033 U
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
0.0039 U
mg/L
Manganese (Mn)
0.0007 U
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080144
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
0.168 U
ug/L
Beryllium (Be)
0.3106 U
ug/L
Cadmium (Cd)
0.0403 U
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
0.1287 U
ug/L
Copper (Cu)
0.1994 U
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.1066 U
ug/L
Nickel (Ni)
0.1004 U
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V) Low Level
0.1119 U
ug/L
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
08/07/2025 14:27
BGN9034
0.1
0.04
1
EPA 9056A
08/07/2025 14:27
BGN9034
0.1
0.04
1
EPA 9056A
08/07/2025 14:27
BGN9034
0.023
0.002
1
EPA 9056A
08/07/2025 14:27
BGN9034
0.1
0.041
1
EPA 9056A
08/07/2025 14:27
BGN9034
0.05
0.01
1
EPA 7470A
08/12/2025 07:46
SNEGLIA
0.005
0.0011
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.05
0.0046
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.05
0.0124
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.01
0.0033
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.005
0.0027
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.02
0.0039
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.005
0.0007
1
SW 601OD
08/11/2025 10:42
DDAUZVA
0.015
0.0011
1
SW 601OD
08/11/2025 10:42
DDAUZVA
1
0.1259
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.168
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.3106
1
SW 6020E
08/13/2025 15:37
SNEGLIA
1
0.0403
1
SW 6020E
08/13/2025 15:37
SNEGLIA
1
0.2894
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.1287
1
SW 6020E
08/13/2025 15:37
SNEGLIA
1
0.1994
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.0579
1
SW 6020E
08/13/2025 15:37
SNEGLIA
1
0.1066
1
SW 6020E
08/13/2025 15:37
SNEGLIA
1
0.1004
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.2052
1
SW 6020B
08/13/2025 15:37
SNEGLIA
1
0.0521
1
SW 6020E
08/13/2025 15:37
SNEGLIA
0.2
0.0326
1
SW 6020B
08/13/2025 15:37
SNEGLIA
0.3
0.1119
1
SW 6020E
08/13/2025 15:37
SNEGLIA

Certificate of Laboratory Analysis Page 15 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Qualifiers:
J Analyte detected above the MDL, but below the RL. Analyte concentration should be considered an estimate.
M Matrix Spike and/or Matrix Spike Duplicate recovery was outside of the control limits. The associated Laboratory Control
Spike (LCS) recovery was acceptable.
M4 The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level.
The associated Laboratory Control Spike recovery was acceptable.

Certificate of Laboratory Analysis Page 16 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080118 Dionex INORGANIC IONS BY IC
Blank # 1
LCS # 1
MS # 1
MSD # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Chloride
0
0
mg/L
1
0.015
0.1
< MDL
Fluoride
0
0
mg/L
1
0.04
0.1
< MDL
Nitrate
0
0
mg/L
1
0.04
0.1
< MDL
Sulfate
0
0
mg/L
1
0.041
0.1
< MDL
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Chloride
5.1
5.1
mg/L
1
0.015
5
102
80
120
Fluoride
4.78
4.78
mg/L
1
0.04
5
95.5
80
120
Nitrate
5.09
5.09
mg/L
1
0.04
5
102
80
120
Sulfate
5.07
5.07
mg/L
1
0.041
5
101
80
120
Parent Sample:
J25070186 -- 2025017008
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Chloride
10.3
205
mg/L
20
0.015
100
95.5
80
120
Fluoride
4.89
97.8
mg/L
20
0.04
100
97
80
120
Nitrate
5.95
119
mg/L
20
0.04
100
95.3
80
120
Sulfate
4.78
2390
mg/L
500
0.041
100
63.6
80
120
Parent Sample:
J25070186 -- 2025017008
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Chloride
10.1
203
mg/L
20
0.015
100
92.8
80
120
1.28
Fluoride
4.85
97
mg/L
20
0.04
100
96.2
80
120
0.868
Nitrate
5.96
119
mg/L
20
0.04
100
95.4
80
120
0.131
Sulfate
4.76
2380
mg/L
500
0.041
100
54.6
80
120
0.378
Qualifiers:
M4 The spike recovery value was unusable since the analyte concentration in the sample was disproportionate
to the spike level. The associated Laboratory Control Spike recovery was acceptable.
Qualifier
Qualifier
Qualifier
M4
Qualifier
M4

Certificate of Laboratory Analysis Page 17 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080164 HG 7470 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
Mercury (Hg)
-0.013
-0.013
ug/L
1
0.01
0.05
< MDL
Blank # 2
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
Mercury (Hg)
0.013
0.013
ug/L
1
0.01
0.05
> MDL
Blank # 3
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
Mercury (Hg)
0.006
0.006
ug/L
1
0.01
0.05
< MDL
Blank # 4
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
Mercury (Hg)
0.004
0.004
ug/L
1
0.01
0.05
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery LCL UCL
Qualifier
Mercury (Hg)
2.3
2.3
ug/L
1
0.01
2
115 85 115
LCS # 2
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
2.3
2.3
ug/L
1
0.01
2
115
85 115
MS # 1
Parent Sample:
J25070186 -- 2025017008
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL UCL
Qualifier
Mercury (Hg)
0.19
0.19
ug/L
1
0.01
1
19
75 125
M
MSD # 1
Parent Sample:
J25070186 -- 2025017008
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
0.185
0.185
ug/L
1
0.01
1
18.5
75 125 2.67
M
MS # 2
Parent Sample:
J25070722 -- 2025019381
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
1.08
1.08
ug/L
1
0.01
1
108
75 125
MSD # 2
Parent Sample:
J25070722 -- 2025019381
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
1.08
1.08
ug/L
1
0.01
1
108
75 125 0.277
MS # 3
Parent Sample:
J25070722 -- 2025019392
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
1.07
1.07
ug/L
1
0.01
1
107
75 125

Certificate of Laboratory Analysis Page 18 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080164 HG 7470 MERCURY (COLD VAPOR) IN WATER
MSD # 3
Parent Sample:
J25070722
-- 2025019392
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL RPD Qualifier
Mercury (Hg)
1.09
1.09
ug/L
1
0.01
1
108
75
125 1.77
MS # 4
Parent Sample:
J25070722
-- 2025019402
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL Qualifier
Mercury (Hg)
1.12
1.12
ug/L
1
0.01
1
112
75
125
MSD # 4
Parent Sample:
J25070722
-- 2025019402
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL RPD Qualifier
Mercury (Hg)
1.15
1.15
ug/L
1
0.01
1
115
75
125 2.38
Qualifiers:
M Matrix Spike and/or Matrix Spike Duplicate recovery was outside of the control limits. The associated
Laboratory Control Spike (LCS) recovery was acceptable.

Certificate of Laboratory Analysis Page 19 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080135 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
LCS # 1
Parameter Measured Final
Zinc (Zn) -0.000624-0.000624
Parameter Measured Final
Zinc (Zn) 4.98 4.98
LCSD # 1
Parameter Measured Final
Zinc (Zn) 5 5
Units Dil MDL RDL Relative Concentration
mg/L 1 0.0011 0.015 < MDL
Units Dil MDL Spike % Recovery LCL UCL
mg/L 1 0.0011 5 99.6 80 120
Units Dil MDL Spike % Recovery LCL UCL
mg/L 1 0.0011 5 100 80 120
Qualifier
Qualifier
RPD Qualifier
0.461

Certificate of Laboratory Analysis Page 20 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080136 ICP_TRM TOTAL RECOVERABLE METALS BY iCP
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Barium (Ba)
0.00016
0.0001
mg/L
1
0.0011
0.005
< MDL
Boron (B)
0.00195
0.0008
mg/L
1
0.0046
0.05
< MDL
Calcium (Ca)
0.0117
-0.0006
mg/L
1
0.0124
0.05
< MDL
Iron (Fe)
0.00516
0.0005
mg/L
1
0.0033
0.01
< MDL
Lithium (Li)
-0.000363
-0.0001
mg/L
1
0.0027
0.005
< MDL
Magnesium (Mg)
-0.000565
0.0007
mg/L
1
0.0039
0.02
< MDL
Manganese (Mn)
-0.000081
-0.0003
mg/L
1
0.0007
0.005
< MDL
Zinc (Zn)
0.000755
0.002
mg/L
1
0.0011
0.015
> MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Barium (Ba)
4.87
4.87
mg/L
1
0.0011
5
97.3
80
120
Boron (B)
4.85
4.85
mg/L
1
0.0046
5
97
80
120
Calcium (Ca)
4.75
4.75
mg/L
1
0.0124
5
95.1
80
120
Iron (Fe)
4.81
4.81
mg/L
1
0.0033
5
96.2
80
120
Lithium (Li)
4.79
4.79
mg/L
1
0.0027
5
95.9
80
120
Magnesium (Mg)
4.88
4.88
mg/L
1
0.0039
5
97.5
80
120
Manganese (Mn)
5
5
mg/L
1
0.0007
5
100
80
120
Zinc (Zn)
4.98
4.98
mg/L
1
0.0011
5
99.6
80
120
MS # 1
Parent Sample:
J25070186
-- 2025017014
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL
UCL
Barium (Ba)
4.8
4.8
mg/L
1
0.0011
5
95.6
75
125
Boron (B)
3.08
30.8
mg/L
10
0.0046
5
84.1
75
125
Calcium (Ca)
39.9
399
mg/L
10
0.0124
5
0
75
125
Iron (Fe)
17.9
17.9
mg/L
1
0.0033
5
103
75
125
Lithium (Li)
5.92
5.92
mg/L
1
0.0027
5
104
75
125
Magnesium (Mg)
84.6
84.6
mg/L
1
0.0039
5
99.4
75
125
Manganese (Mn)
14.9
14.9
mg/L
1
0.0007
5
95.3
75
125
Zinc (Zn)
4.83
4.83
mg/L
1
0.0011
5
94.8
75
125
MSD # 1
Parent Sample:
J25070186
-- 2025017014
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Barium (Ba)
4.7
4.7
mg/L
1
0.0011
5
93.4
75
125
2.25
Boron (B)
3.14
31.4
mg/L
10
0.0046
5
95.7
75
125
1.86
Calcium (Ca)
40.9
409
mg/L
10
0.0124
5
82
75
125
2.39
Iron (Fe)
17.9
17.9
mg/L
1
0.0033
5
103
75
125
0.0615
Lithium (Li)
5.97
5.97
mg/L
1
0.0027
5
105
75
125
0.841
Magnesium (Mg)
85.8
85.8
mg/L
1
0.0039
5
122
75
125
1.33
Manganese (Mn)
14.9
14.9
mg/L
1
0.0007
5
95.2
75
125
0.0335
Qualifier
Qualifier
Qualifier
M4
Qualifier

Certificate of Laboratory Analysis Page 21 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080136 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MSD # 1 Parent Sample: J25070186 -- 2025017014
Parameter Measured Final Units Dil MDL Spike % Recovery LCL UCL RPD Qualifier
Zinc (Zn) 4.83 4.83 mg/L 1 0.0011 5 94.7 75 125 0.145
Qualifiers:
M4 The spike recovery value was unusable since the analyte concentration in the sample was disproportionate
to the spike level. The associated Laboratory Control Spike recovery was acceptable.

Certificate of Laboratory Analysis Page 22 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080141 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
Beryllium (Be)
-0.004
-0.004
ug/L
1
0.3106
1
< MDL
Cadmium (Cd)
0.002
0.002
ug/L
1
0.0403
1
< MDL
Chromium (Cr)
0.071
0.071
ug/L
1
0.2894
1
< MDL
Copper (Cu)
0.01
0.01
ug/L
1
0.1994
1
< MDL
Lead (Pb)
-0.031
-0.031
ug/L
1
0.0579
1
< MDL
Nickel (Ni)
0.019
0.019
ug/L
1
0.1004
1
< MDL
Silver (Ag)
0.001
0.001
ug/L
1
0.0521
1
< MDL
Parameter
Measured
Final
Units
Dil
MDL
S ike
% Recovery
LCL
UCL Qualifier
Beryllium (Be)
53.3
53.3
ug/L
1
0.3106
50
107
80
120
Cadmium (Cd)
52.4
52.4
ug/L
1
0.0403
50
105
80
120
Chromium (Cr)
51.8
51.8
ug/L
1
0.2894
50
104
80
120
Copper (Cu)
53.2
53.2
ug/L
1
0.1994
50
106
80
120
Lead (Pb)
51.6
51.6
ug/L
1
0.0579
50
103
80
120
Nickel (Ni)
52.8
52.8
ug/L
1
0.1004
50
106
80
120
Silver(Ag)
53.5
53.5
ug/L
1
0.0521
50
107
80
120
LCSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD Qualifier
Beryllium (Be)
53.1
53.1
ug/L
1
0.3106
50
106
80
120
0.372
Cadmium (Cd)
51.5
51.5
ug/L
1
0.0403
50
103
80
120
1.81
Chromium (Cr)
50.5
50.5
ug/L
1
0.2894
50
101
80
120
2.53
Copper (Cu)
52.7
52.7
ug/L
1
0.1994
50
105
80
120
0.969
Lead (Pb)
52.2
52.2
ug/L
1
0.0579
50
104
80
120
1.1
Nickel (Ni)
51.8
51.8
ug/L
1
0.1004
50
104
80
120
1.78
Silver(Ag)
52.3
52.3
ug/L
1
0.0521
50
105
80
120
2.24

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080144 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Antimony (Sb)
0.003
0.003
ug/L
1
0.1259
1
< MDL
Arsenic (As)
0.004
0.004
ug/L
1
0.168
1
< MDL
Beryllium (Be)
0.001
0.001
ug/L
1
0.3106
1
< MDL
Cadmium (Cd)
0.001
0.001
ug/L
1
0.0403
1
< MDL
Chromium (Cr)
-0.009
-0.009
ug/L
1
0.2894
1
< MDL
Cobalt (Co)
0.004
0.004
ug/L
1
0.1287
1
< MDL
Copper (Cu)
0.004
0.004
ug/L
1
0.1994
1
< MDL
Lead (Pb)
-0.039
-0.039
ug/L
1
0.0579
1
< MDL
Molybdenum (Mo)
0.043
0.043
ug/L
1
0.1066
1
< MDL
Nickel (Ni)
0.03
0.03
ug/L
1
0.1004
1
< MDL
Selenium (Se)
-0.004
-0.004
ug/L
1
0.2052
1
< MDL
Silver (Ag)
0.001
0.001
ug/L
1
0.0521
1
< MDL
Thallium (TI) Low Level
0.001
0.001
ug/L
1
0.0326
0.2
< MDL
Vanadium (V) Low Level
-0.008
-0.008
ug/L
1
0.1119
0.3
< MDL
LCS # 1
Page 23 of 27
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL
UCL
Antimony (Sb)
51.3
51.3
ug/L
1
0.1259
50
103
80
120
Arsenic (As)
51.5
51.5
ug/L
1
0.168
50
103
80
120
Beryllium (Be)
50
50
ug/L
1
0.3106
50
100
80
120
Cadmium (Cd)
51.7
51.7
ug/L
1
0.0403
50
103
80
120
Chromium (Cr)
50.1
50.1
ug/L
1
0.2894
50
100
80
120
Cobalt (Co)
52.8
52.8
ug/L
1
0.1287
50
106
80
120
Copper (Cu)
52.6
52.6
ug/L
1
0.1994
50
105
80
120
Lead (Pb)
51.5
51.5
ug/L
1
0.0579
50
103
80
120
Molybdenum (Mo)
51.8
51.8
ug/L
1
0.1066
50
104
80
120
Nickel (Ni)
52.1
52.1
ug/L
1
0.1004
50
104
80
120
Selenium (Se)
51.1
51.1
ug/L
1
0.2052
50
102
80
120
Silver(Ag)
52.5
52.5
ug/L
1
0.0521
50
105
80
120
Thallium (TI) Low Level
48.8
48.8
ug/L
1
0.0326
50
97.7
80
120
Vanadium (V) Low Level
50.2
50.2
ug/L
1
0.1119
50
100
80
120
MS # 1
Parent Sample:
J25070186
-- 2025017015
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Antimony (Sb)
50.3
50.3
ug/L
1
0.1259
50
101
75
125
Arsenic (As)
51.8
51.8
ug/L
1
0.168
50
104
75
125
Beryllium (Be)
50.1
50.1
ug/L
1
0.3106
50
100
75
125
Cadmium (Cd)
49.9
49.9
ug/L
1
0.0403
50
99.8
75
125
Chromium (Cr)
49.1
49.1
ug/L
1
0.2894
50
97.4
75
125
Cobalt (Co)
53.1
53.1
ug/L
1
0.1287
50
101
75
125
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080144 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Copper (Cu)
52.4
52.4
ug/L
1
0.1994
50
Lead (Pb)
50.5
50.5
ug/L
1
0.0579
50
Molybdenum (Mo)
51.4
51.4
ug/L
1
0.1066
50
Nickel (Ni)
53.3
53.3
ug/L
1
0.1004
50
Selenium (Se)
52.2
52.2
ug/L
1
0.2052
50
Silver (Ag)
49.5
49.5
ug/L
1
0.0521
50
Thallium (TI) Low Level
48.3
48.3
ug/L
1
0.0326
50
Vanadium (V) Low Level
49.5
49.5
ug/L
1
0.1119
50
MSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Antimony (Sb)
51
51
ug/L
1
0.1259
50
Arsenic (As)
51.7
51.7
ug/L
1
0.168
50
Beryllium (Be)
50
50
ug/L
1
0.3106
50
Cadmium (Cd)
49.9
49.9
ug/L
1
0.0403
50
Chromium (Cr)
49.3
49.3
ug/L
1
0.2894
50
Cobalt (Co)
53.5
53.5
ug/L
1
0.1287
50
Copper (Cu)
52.7
52.7
ug/L
1
0.1994
50
Lead (Pb)
50.7
50.7
ug/L
1
0.0579
50
Molybdenum (Mo)
50.9
50.9
ug/L
1
0.1066
50
Nickel (Ni)
53.3
53.3
ug/L
1
0.1004
50
Selenium (Se)
51.7
51.7
ug/L
1
0.2052
50
Silver (Ag)
49.7
49.7
ug/L
1
0.0521
50
Thallium (TI) Low Level
48.4
48.4
ug/L
1
0.0326
50
Vanadium (V) Low Level
49.6
49.6
ug/L
1
0.1119
50
Page 24 of 27
Parent Sample: J25070186 -- 2025017015
% Recovery
LCL
UCL
101
75
125
101
75
125
103
75
125
101
75
125
102
75
125
98.9
75
125
96.5
75
125
98.8
75
125
Parent Sample: J25070186 -- 2025017015
% Recovery
LCL
UCL
RPD
102
75
125
1.33
103
75
125
0.363
99.9
75
125
0.108
99.7
75
125
0.12
97.7
75
125
0.341
102
75
125
0.661
102
75
125
0.714
101
75
125
0.429
102
75
125
0.92
101
75
125
0.0206
102
75
125
0.949
99.3
75
125
0.397
96.8
75
125
0.269
99
75
125
0.196
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 25 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080162 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter Measured Final
TDS -0.1
Duplicate # 1
Parameter Measured Final
TDS 110
LCS # 1
Parameter Measured Final
TDS 494
Units
Dil
MDL
RDL
Relative Concentration
mg/L
1
25
25
< MDL
Parent Sample: J25070131 -- 2025016817
Units
Dil
MDL
RPD
mg/L
1
25
0.913
Units
Dil
MDL
Spike
% Recovery LCL UCL
mg/L
1
25
500
98.8 90 110
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 26 of 27
This report shall not be reproduced, except in full.
Order # J25070186
Level II QC Summary
Q25080185 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter Measured Final
TDS -0.1
Duplicate # 1
Parameter Measured Final
TDS 199
LCS # 1
Parameter Measured Final
TDS 500
Units
Dil
MDL
RDL
Relative Concentration
mg/L
1
25
25
< MDL
Parent Sample: J25080319 -- 2025020460
Units
Dil
MDL
RPD
mg/L
1
25
1.5
Units
Dil
MDL
Spike
% Recovery LCL UCL
mg/L
1
25
500
100 90 110
Qualifier
Qualifier
Qualifier

f! .� DUKE Duke Energy Analytical Laboratory
Mail Code MOO1A2 (Building 7�86)
`*'ENERGY. 1119 Hege s FerryRd
80
Hunle(7NI8 N.C. 280]8
(]0018]8d246
....................
_ Fez_ 70t 87r_de_]8_ ........
roject Name MARSHALL INDUSTRIAL LANDFILL at
PERMIT a 18-12
lient ANNE DAVIN, ASHLEY HEALY,
RYAN MOELLER, DEE O'BRIEN, JOSH STOWE
perating Unit: MS00 I Process: NGRDWTR Account:
--------------------
NUMBER
2026017008
2026017009
1
j 2025017010 i
2025017011;
2026017012
• 2025017013
i 2025017014
i-i
2026017015i
2026017016
2026017017
) i
I I
Code:
Sample Description or ID
MSS ILF1-LCS-CELL1
MSS ILF1-LCS-CELL2
MSS ILF1-LCS-CELLS
MSS_ILF1-LCS-CELL4
MSS_ILF1-LCS-CELL5
MSS ILF1-LCS-CELL6
MSS ILF1-LCSC1
MSS ILF1-UD1
o2lota7 � l
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
_._._._.-.-._._._.-._._._._._._._._._._._._._._._._._-Ana cal LaboratoryUse On]
_._.-._._._.-._.-
# J25070186 IMatrix WATER
Filtration (0.45
Pmsenn
Container Volume
Container'
Customer to complete all appropriate nonshaded areas.
I
hiss
NC_x_ SC_
SAMPLE PROGRAM
Ground Water_X_ NPDES_
Drinking Water_ LIST_
RCRA Waste _
Unfiltered
ICE
ICE
500
300
600
HDPE
PET
PET
(Metals Prep - TRM) ICP -
SW601oD: Be, B, Ca, Fe,
Li, Mg, Mn, Zn (8) / Hg
EPA 7470A I IMS -
SW6020B: Sb, As, Be,
Cd, Cr, Co, Cu, Pb, Mo,
Ni, Se, Ag, TI, V (14)
EPA 9056:
Cl, F, NO3-N
(48-Hr Hold
Time), SO4
TDS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Page 27 of 27
'. Page _1_of_l_
DISTRIBUTION
ORIGINAL to LAB, COPY to CLIENT
11 Filtered
250
HOPE
SW6010D
Zn/
SW6020B —
Be, Cd, c
Pb.rNo, Ag
H
melon Is h@fl Date/Time
Accepted By: Datafji
�, 1)
m
u
Requested Turnaround
�1*1115 kZ
t1t•- `3 'L 5•+
vJ
c
Relinquished By DateTme
Accepts By: DatelTTiime
m o
21 Days
m c
a 2
n o
Relinquished By DatelTime
Accepted By: Date/Time
14 Days
C �
ti e
_X
Seal/Locked By DatefTime
Sealed/Lock Opened By Date/Time
a a
•7 Days
E 'm
- a
Comments
Regulatory Agency: NCDENR/DWM - SW Section - NCDEQ EDD Required / Permit #18-12 EQUIS EDD REQUIRED
o
•Other
Use indicated or comparable methods. Note: Hardness by Calculation (Ca + Mg ICP_TRM) added ILF1-UD1 and FD
U
Add. Cost Will Apply •