3619_DukeAllen_2025ECMReport_FID2187035_20260116

(' DUKE
ENERGY-.
January 16, 2026
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 Semi -Annual Report
North Starter Landfill and Leachate Basin
Permit No.: 3619-INDUS-2021
Allen Steam Station
Gaston County, North Carolina
Dear Ms. Moutos:
525 S. Tryon St.
Mail Code: DEP-36A
Charlotte NC, 28202
In accordance with the Environmental Control Monitoring Plan (ECMP) Revision 2, Duke Energy is providing
the results of the 2025 second semi-annual leachate and construction drain sampling and leak detection
system (LDS) monitoring for the Allen Steam Station North Starter Landfill (NSLF) and Leachate Basin (both
permitted under 3619-INDUS-2021), located near Belmont, in Gaston County, North Carolina.
On August 27, 2025, leachate samples were collected from the NSLF leachate collection system (LCS) and
construction drain, as well as the leachate basin. The samples were collected by Duke Energy personnel and
analyzed by the Duke Energy Analytical Laboratory. A summary of monitoring results can be found in the
attached Environmental Controls Monitoring Report (ECMR). The parameters tested are not bound by state
groundwater or surface water standards. All laboratory analytical and field results are provided in the
appendices of the Report.
The attached ECMR narrative and Drawing 2 have been updated to reflect changes to the leachate
management process and leachate force main alignment per the approved landfill leachate management
reroute that was completed in July 2025. Duke Energy appreciates the extension granted by the Section for
this ECMR submittal to allow additional time to incorporate this change.
Allen Steam Station's NSLF is sampled semi-annually, typically during the months of March and September.
The next landfill sampling event is scheduled for March 2026 with documentation to follow.
www.duke-energy.com Page 1 of 2

If you need additional information regarding this submittal do not hesitate to email or call me at
[e-mail] or [phone].
Respectfully,
Courtney W. Murphy, P.G.
Environmental Services
Attachments: Environmental Controls Monitoring Semiannual Report — April 2025 through August 2025
(SynTerra, January 14, 2026)
cc (via e-mail): Jordan Russ, NCDEQ
Elizabeth Werner, NCDEQ
Sherri Stanley, NCDEQ
Ben Dawkins, Duke Energy
Sheila Westcott, Duke Energy
Kenneth McKinney, Duke Energy
Charlie Smith, Duke Energy
Tyler Hardin, Duke Energy
Kim Witt, 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: Christopher Suttell 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 3619 Gaston .0500 8/27/2025
Allen Steam Station
North Starter Landfill
Environmental Status : (Check all that apply)
E] Initial/Baseline Monitoring © Detection Monitoring Assessment Monitoring ❑ Corrective Action
Type of Data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells H
Methane gas monitoring data
Groundwater monitoring data from private water supply wells Corrective action data (specify)
Leachate monitoring data
Surface water monitoring data Ej Other (specify) Groundwater monitoring data from construction drain
Notification Attached?
BNO. 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.
Christopher J. Suttell Senior Project Manager
Facility Representative Name ( Print) Title
_ Affix NC Licensed/ Professional Geologist or PE Seal
January 14, 2026
Signature Date �t scesrrrr�
148 River Street, Suite 220, Greenville SC 29601 4�'aiAN,�;•••y!
Facility Representative Address,,_
C-387 (Geological)
NC Geological Corporation Number or NC PE Firm License Number
(if applicable effective May 1 , 2009)
-06 y.6�
�4**Q ER S. a°9`a Revised
NIallm 10/01/2025

REPORT VERIFICATION
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ALLEN STEAM STATION
NORTH STARTER LANDFILL
PERMIT NO. 3619-INDUS
TITLE: ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
This document has been reviewed for accuracy and quality commensurate with the intended
application.
Prepared by:
Approved by:
Project Manager: Christopher Suttell, NC L.G. #2426
Date: 1/14/2026
Date: 1/14/2026
Licensed Geologist Seal:
SynTerra
148 River Street, Suite 220
Greenville, SC 29601
North Carolina Geological Corporation Number C-387

Environmental Controls Monitoring
Semiannual Report
April 2025 through August 2025
Allen Steam Station
North Starter Landfill (Permit No. 3619-INDUS)
Gaston County, North Carolina
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� DUKE
ENERGY.
CAROLINAS
PREPARED FOR:
Duke Energy Carolinas, LLC
January 14, 2026
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Hanna unningham
Project Scientist
Scott Spinner
Senior Peer Reviewer

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Table of Contents
1.0
Background...................................................................................................................................1
1.1
Site Description................................................................................................................................... 1
1.1.1 North Starter Landfill.................................................................................................................... 1
1.1.2 Leachate Basin............................................................................................................................. 2
1.1.3 Construction Drain....................................................................................................................... 2
1.1.4 Surface Water Management......................................................................................................... 3
1.2
Summary of Site Geology and Hydrology............................................................................................... 3
2.0
Monitoring, Sampling, and Analysis Locations and Methods............................................................... 4
3.1
Leak Detection System Monitoring....................................................................................................... 4
3.2
Leachate Sampling and Analysis............................................................................................................ 4
2.3
Construction Drain 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 and Analytical Results............................................................................................................ 6
3.3
Construction Drain Outlet Analytical Results.......................................................................................... 6
3.4
Surface Water Analytical Results........................................................................................................... 7
4.0
References....................................................................................................................................8
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Environmental Controls Monitoring Semiannual Report
North Starter Landfill (Permit No. 3619-INDUS)
April 2025 through August 2025
List of Drawings
Drawing 1 Site Location Map
Drawing 2 Monitoring Locations
List of Tables
Table 1A
Leak Detection System Monitoring Results — North Starter Landfill
Table 1B
Leak Detection System Monitoring Results — Leachate Basin
Table 2
Leachate Analytical Results — August 27, 2025
Table 3
Construction Drain Outlet Analytical Results — August 27, 2025
List of Appendices
Appendix A Field Calibration and Sampling Forms
Appendix B Laboratory Reports, Data Validation Checklists, and Chain -of -Custody Forms
Page ii

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
1.0 Background
This Environmental Controls Monitoring Semiannual Report documents monitoring results pertaining to the
North Starter Landfill (NSLF or landfill; Permit No. 3619-INDUS) located at the Duke Energy Carolinas, LLC (Duke
Energy) Allen Steam Station (Allen, Station, or Site). The monitoring results in this report are for the period of
April 2025 through August 2025.
The Environmental Controls Monitoring Plan (ECMP) establishes locations and procedures for monitoring the
early detection of solid waste or leachate potentially released to the environment from the NSLF. The
Environmental Control Monitoring Plan, Revision 2 (ECMP, Revision 2 Update; SynTerra, 2023) was submitted to
the North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM) on
July 19, 2023, and approved by the NCDEQ DWM on July 26, 2023. The August 2025 monitoring event (the
second semiannual monitoring event of 2025) and this report comply with the ECMP, Revision 2 (SynTerra,
2023).
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 (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 13B
.0504(c)(8)(D) in accordance with NCGS § 130A-295.4(c).
1.1 Site Description
A summarized description of the NSLF and Leachate Basin is provided below. A more detailed
description of the NSLF, the Leachate Basin, and the Site is presented in the ECMP, Revision 2
(SynTerra, 2023). A notable change at the facility that occurred following the ECMP, Revision 2 is that
as of December 2024, the Station is no longer used for power generation and is now in the process of
being decommissioned.
The NSLF [in accordance with NCGS § 130A-295.4(b)] and the Leachate Basin [in accordance with
NCAC, Title 15A, Subchapter 13B .1680(e)(2)] are each constructed with base liner systems that include
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.
1.1.1 North Starter Landfill
The approximately 25-acre NSLF is located partially within the western portion of the Retired
Ash Basin (RAB) (Drawing 1). The landfill is bound by Plant Allen Road to the north, the RAB to
the south and east [specifically the Distribution of Residual Solids (DORS) Fills to the east], and
upland areas to the west (Drawings 1 and 2).
Most of the waste intended for placement throughout the life of the landfill consists of coal
combustion residuals (CCR), predominantly fly ash and bottom ash. The approved waste streams
are in the Operations Plan - Allen Steam Station North Starter Landfill (3619-INDUS) Revision 1
(Operations Plan; AECOM, 2024B). Leachate is conveyed from the NSLF to the Leachate Basin via
Page 1

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
a force main piping network. Leachate conveyance from the Leachate Basin is described in
Section 1.1.2.
In a letter dated October 2, 2024, the NCDEQ granted interim approval to place CCR as interim
cover in the NSLF. Final approval of NSLF operations was granted on December 13, 2023, upon
receipt of the NCDEQ's approval of the NSLF Construction Certification Report, Volume 1 (FID
1812557), Volume 2 (FID 1818489), Volume 3 (FID1818100), and Volume 4 (FID 1821726), which
contained construction quality assurance information. The landfill began operating on
December 14, 2023.
1.1.2 Leachate Basin
The approximately 3-acre Leachate Basin is located within the northwestern portion of the
Active Ash Basin (AAB) and is bounded by the RAB to the north, AAB to the east and south, and
upland areas to the west (Drawings 1 and 2).
In 2025, flows from the Leachate Basin were rerouted per the approved Permit Modification
Package — Landfill Leachate Management Reroute, Allen Steam Station, North Starter Landfill
(3619-INDUS), South Starter Landfill (3620-INDUS), Retired Ash Basin Landfill (3612-INDUS),
Revision 0 (AECOM, 2024A). Leachate from the Leachate Basin is now pumped via force main to
the on -Site wastewater treatment system (WWTS) where it is comingled with other
wastewaters for treatment. Flows from the on -Site WWTS are discharged to the Catawba River
(Lake Wylie) through Outfall 002 in accordance with National Pollutant Discharge Elimination
System (NPDES) Permit NC0004979 (Drawing 2).
In a letter dated October 2, 2024, the NCDEQ granted interim approval for operation of a
temporary pumping system and to place CCR as interim cover in the Leachate Basin. Final
approval of Leachate Basin operation was granted on November 14, 2023, after the permanent
pumping system was in place and upon receipt of the NCDEQ's approval of the Leachate Basin
Construction Certification Report, Volumes 1 through 3 (FID 1776828, 1818490, and 1820954),
which contained construction quality assurance information. The Leachate Basin began
operating on November 14, 2023.
1.1.3 Construction Drain
A gravity flow construction drain was installed beneath the NSLF for the purpose of maintaining
groundwater elevations in the area at levels at least 4 feet below the composite liner system.
The NSLF construction drain is comprised of a 6-inch high -density polyethylene (HDPE) DR-11
perforated piping network placed beneath the southeastern portion of the NSLF's composite
liner system (Drawing 2). The pipes are surrounded by 6 inches of stone with a geotextile wrap
and convey collected groundwater for discharge via 6-inch solid HDPE DR-11 piping. The
construction drain was completed in June 2022 and has been operational since that time.
Construction drain outlet sample locations, designated as ALN-NSLF-CD1 and ALN-NSLF-CD2, are
at the terminus of discharge pipes located in the southeastern corner of the NSLF (Drawing 2).
At the time of this report, ALN-NSLF-CD1 is sealed off with a blind flange and is not anticipated
to be used for construction drain discharge for the remaining duration of construction drain
operation. Therefore, construction drain discharge samples are currently collected from ALN-
NSLF-CD2; however, construction drain discharge flows could be switched to ALN-NSLF-CD1 if
needed. Only one construction drain discharge pipe is anticipated to be operational at a time.
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Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Construction drain discharge from the NSLF is pumped to either the AAB Polishing Pond or a
lined equalization basin within the AAB temporarily before being collected and managed
through the on -Site WWTS and discharged to the Catawba River (Lake Wylie) through Outfall
002 in accordance with NPDES Permit NC0004979.
1.1.4 Surface Water Management
The NSLF was designed to provide separation of contact water from non -contact stormwater.
Contact stormwater is managed as leachate. Non -contact stormwater runoff from the landfill is
conveyed to the perimeter channel network via a series of tack -on berms, benches, and down
chutes. No surface water features are present in the vicinity of the NSLF.
12 Summary of Site Geology and Hydrology
The groundwater system at Allen 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 flow layers to distinguish the interconnected groundwater system: the shallow
flow zone, the deep (transition zone) flow zone, and the bedrock flow zone.
The AAB, RAB, DORS Fills (which includes two ash storage areas and two structural fills), RAB Ash
Landfill, NSLF, and Leachate Basin are contained within former perennial stream valleys (the flow
compartment) (Drawing 1). Groundwater within the flow compartment is a flow -through system.
Groundwater enters the system from the upgradient end near the NSLF and flows beneath the NSLF
and laterally through the central portion of the system and downward near the RAB dam. Beyond the
dam, groundwater flows toward and discharges to the Catawba River (Lake Wylie).
A groundwater divide is located primarily west of the Site (Drawing 1). The groundwater divide is
upgradient of the NSLF and roughly follows topography along South Point Road and topographic highs
north of the RAB along Plant Allen Road to the Discharge Canal and south of the AAB near Reese
Wilson Road. The topographically controlled flow direction provides natural hydraulic control of
groundwater in the vicinity of the NSLF, ash basins, and adjacent sources within the flow
compartment.
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Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
2.0 Monitoring, Sampling, and Analysis Locations and Methods
2.1 Leak Detection System Monitoring
Leak detection monitoring occurs in the vicinity of the landfill sump (ALN-NSLF-LDS1) and in the vicinity
of the Leachate Basin (ALN-LDSC) (Drawing 2).
Performance of the leak detection system (LDS) is determined by the average monthly quantity of
liquid removed from the leak detection layer. Each 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, 2024B).
Leak detection monitoring results are summarized in Section 3.1.
ZI Leachate Sampling and Analysis
A discrete leachate sample was collected from location ALN-NSLF-LCS1, located in the vicinity of the
landfill sump from the leachate collection discharge. A comprehensive leachate sample was collected
from the Leachate Basin sump (ALN-LCSC) located in the vicinity of the corresponding sump header.
Both samples were collected on August 27, 2025. Leachate sample locations are shown on Drawing 2.
Duke Energy personnel collected samples and documented the sampling in accordance with
procedures provided in Duke Energy's Landfill Sample Collection Guideline (SynTerra, 2023 Appendix 1).
Copies of the field calibration and sampling forms are included in Appendix A. The parameters and
constituents reported were sampled in accordance with Table 1 of the approved ECMP, Revision 2
Update. 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.
The leachate samples were measured for the following parameters in the field:
• 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 in the laboratory for the following constituents:
• Barium, boron, calcium, iron, lithium, magnesium, manganese, and zinc using U.S.
Environmental Protection Agency (USEPA) Method 6010D
• Antimony, arsenic, beryllium, cadmium, chromium, cobalt, copper, lead, molybdenum, nickel,
selenium, thallium, and vanadium using USEPA Method 6020B
• Chloride, fluoride, nitrate (as nitrogen), and sulfate using USEPA Method 9056A
• Mercury using USEPA Method 7470A
• Silver using USEPA Method 6020B
• Total dissolved solids using Standard Method (SM) 2540C
Leachate field parameters and analytical results are summarized in Section 3.2.
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Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Z.3 Construction Drain Outlet Sampling and Analysis
A construction drain outlet sample was collected from sample location ALN-NSLF-CD2 on March 3,
2025 (Drawing 2).
Copies of the field calibration and sampling forms are included in Appendix A. The parameters and
constituents reported were sampled in accordance with Table 1 of the approved ECMP, Revision 2
Update. The Duke Energy Analytical Laboratory analyzed the constituents. The laboratory report and
COC forms are included in Appendix B.
The construction drain outlet sample was measured for the same set of parameters and constituents
as the leachate samples (Section 2.2) and the following additional parameters:
• Beryllium (dissolved), cadmium (dissolved), chromium (dissolved), copper (dissolved), lead
(dissolved), and nickel (dissolved) using USEPA Method 6020B
• Silver (dissolved) using USEPA Method 6020B
• Total hardness and zinc (dissolved) using USEPA Method 6010D
Construction drain outlet 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 NSLF.
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Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-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.
An average daily leakage rate is calculated for the operational NSLF each month and compared to the
IRLR and ALR for the landfill LDS as defined in the Operations Plan (AECOM, 202413).
Average daily leakage rates for the NSLF 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 location ALN-NSLF-LDS1 are included in Table 1A, and the LDS
monitoring results for location ALN-LDSC are included in Table 1B. The LDS leakage rate data collection
details are kept with on -Site records.
No leakage rates or notable variances in the data outside of the normal operating range for the landfill
were observed during the monitoring period.
32 Leachate and Analytical Results
Leachate analytical results are not compared to surface water or groundwater quality standards.
The leachate analytical results for samples ALN-NSLF-LCS1 and ALN-LCSC are included in Table 2.
As normal laboratory practice, select samples were diluted to bring samples within the calibrated
range of analysis. Specifics regarding the diluted samples, including the dilution factor, are reported in
the electronic data deliverable and the laboratory analytical report. The laboratory analytical report,
data validation checklist, and COC form associated with data collected as part of this semiannual
monitoring period are included in Appendix B.
3.3 Construction Drain Outlet Analytical Results
Construction drain outlet analytical results are not compared to surface water or groundwater quality
standards.
The construction drain outlet analytical results for sample ALN-NSLF-CD2 are included in Table 3.
The construction drain outlet sample is included in the same laboratory analytical report, data
validation checklist, and COC form as the leachate data collected as part of this semiannual monitoring
period (Appendix B).
Page 6

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
3.4 Surface Water Analytical Results
Surface water sampling is currently not required for the NSLF; therefore, there are no analytical results
to report.
Page 7

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
4.0 References
AECOM. (2020). Engineering and Facility Plan — Duke Energy Carolinas, LLC., Allen Steam Station — North
Starter Landfill, Permit No. 3619-INDUS. November 3, 2020.
AECOM. (2024A). Permit Modification Package — Landfill Leachate Management Reroute, Allen Steam
Station, North Starter Landfill (3619-INDUS), South Starter Landfill (3620-INDUS), Retired Ash
Basin Landfill (3612-INDUS), Revision 0. January 25, 2024.
AECOM. (202413). Operations Plan, Revision 1 — Duke Energy Carolinas, LLC., Allen Steam Station — North
Starter Landfill, Permit No. 3619-INDUS. November 11, 2024.
SynTerra. (2023). Environmental Control Monitoring Plan, Revision 2 Update — Duke Energy Carolinas,
LLC., Allen Steam Station — North Starter Landfill, Permit No. 3619-INDUS. July 2023.
Page 8

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Drawings

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NOTES:
1. BOUNDARIES ARE APPROXIMATE.
2. WATER FEATURES DEPICTED WITHIN WASTE BOUNDARIES OF THE ASH BASINS ON
THE USGS TOPOGRAPHIC MAP DO NOT REPRESENT CURRENT CONDITIONS.
3. UNITED STATES GEOLOGICAL SURVEY TOPOGRAPHIC MAP OBTAINED FROM ESRI,
LAST UPDATED OCTOBER 2025.
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WINSTON-SALEM ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO.3619-INDUS)
CAROLI
APRIL 2025 THROUGH AUGUST 2025
fASHEVILLE ALLEN STEAM STATION
�� • CHARLOTTE GASTON COUNTY, NORTH CAROLINA
GASTON DRAWN BY: L. FOREMAN DATE: 12/06/2024 GRAPHIC SCALE
COUNTY REVISED BY: H. CUNNINGHAM DATE: 01/13/2026 i,000 o i,000 2,000
symTerra CHECKED BY: C.. SUTELL DATE: 01/13/2026
APPROVED BY: C. SUTTELL DATE: 01/13/2026 (IN FEET)
www.svnterracori).com PROJECT MANAGER: C. SUTTELL

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�_ PR/MARY'�PR/MARY
`-1- 'r°r -- —
■
6
v ALN-LCSC
oy - -.i - -LDSC
o _+ 7
' f Iti F€
NPDES OUTFALL002
GRAPHIC SCALE
■' ' r DUKE 500 0 500 1,000
ENERGY
ON FEET)
CARC
DRAWN BY: L. FOREMAN DATE: 12/06/2024
REVISED BY: C. NORRIS DATE: 01/13/2026
• • y LF
CHECKED BY: C. SUTTELL DATE: 01/13/2026
APPROVED BY: C. SUTTELL DATE: 01/13/2026
SVY1Terrd PROJECT MANAGER: C. SUTTELL
LEGEND
O CONSTRUCTION DRAIN OUTLET SAMPLING LOCATION
O LEACHATE SAMPLING LOCATION
• LEAK DETECTION MONITORING LOCATION
♦ NPDES OUTFALL
CONSTRUCTION DRAIN 6-INCH HDPE DR-11 PERFORATED
PIPING
CONSTRUCTION DRAIN 6-INCH HDPE DR-11 SOLID
DISCHARGE PIPE
- — r TEMPORARY LEACHATE FORCE MAIN
LEACHATE FORCE MAIN
----- LEACHATE BASIN
NORTH STARTER LANDFILL BOUNDARY
—• SOUTH STARTER LANDFILL BOUNDARY
O SITE FEATURES
L' ACTIVE ASH BASIN WASTE BOUNDARY
L RETIRED ASH BASIN WASTE BOUNDARY
IL' RETIRED ASH BASIN ASH LANDFILL WASTE BOUNDARY
DORS FILLS BOUNDARIES
DUKE ENERGY CAROLINAS PROPERTY BOUNDARY
0 SURFACE WATER FLOW DIRECTION
0 STREAM (AMEC NRTR 2015)
® WETLAND (AMEC NRTR 2015)
NOTES:
1. THE WATERS OF THE U.S. HAVE NOT BEEN APPROVED BY THE U.S. ARMY CORPS OF
ENGINEERS AT THE TIME OF THE MAP CREATION. THIS MAP IS A PRELIMINARY
JURISDICTIONAL DETERMINATION ONLY. THE WETLANDS AND STREAMS BOUNDARIES
WERE OBTAINED FROM AMEC FOSTER WHEELER ENVIRONMENTAL & INFRASTRUCTURE,
INC. NATURAL RESOURCE TECHNICAL REPORT FOR ALLEN STEAM STATION DATED MAY 29,
2015.
2. NPDES - NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
3. HPDE - HIGH -DENSITY POLYETHYLENE
4. DORS - DISTRIBUTION OF RESIDUAL SOLIDS
5. BOUNDARIES ARE APPROXIMATE.
6. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS.
r 7. AERIAL IMAGERY IS A COMBINATION OF DUKE ENERGY PROPELLER AERIAL
PHOTOGRAPHY COLLECTED ON MARCH 25, 2025, AND MAXAR AERIAL IMAGERY PROVIDED
BY ESRI, COLLECTED ON MAY 16, 2022.
8. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE
COORDINATE SYSTEM RIPS 3200 (NAD83).
9. LEACHATE FORCE MAIN ALIGNMENT PROVIDED BY AECOM ON JANUARY 7, 2026.
DRAWING 2
MONITORING LOCATIONS
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO. 3619-INDUS)
APRIL 2025 THROUGH AUGUST 2025
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Tables

TABLE 1A
LEAK DETECTION SYSTEM MONITORING RESULTS - NORTH STARTER LANDFILL
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO. 3619-INDUS)
APRIL 2025 THROUGH AUGUST 2025
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, GASTON COUNTY, NORTH CAROLINA
ALN-NSLF-LSD1
MONTHLY
MONTHLY
TOTAL
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
VOLUME
VOLUME
NSLF
DAILY
LEAKAGE RATE
LEAKAGE RATE
DURATION
TOTAL
PERIOD
(DAYS)
RAINFALL
PUMPED
PUMPED
AREA
LEAKAGE
EXCEEDS IRLR:
EXCEEDS ALR:
COMMENTS
(GALLONS)'
(GALLONS)'
(ACRES)2
RATE
316 GPAD
421 GPAD
(INCHES)'
(GPAD)
(YES/NO)
(YES/NO)
LDS PUMP TOTALIZER
Apri12025
30
2.05
2
5,448
25.1
0.00
NO
NO
May 2025
31
4.77
6
5,454
0.01
NO
NO
June 2025
30
2.44
765
6,219
1.02
NO
NO
LDS pump level was triggered
July 2025
1 31
1 2.04
1 5
6,224
0.01
NO
NO
I -
August 2025
1 31
1 8.25
1 765
6,989
0.98
NO
NO
I LDS pump level was triggered
Prepared by: HCC Checked by: CSB
NOTES:
' Data provided by Duke Energy Carolinas, LLC.
2 As presented in the Engineering and Facility Plan, Allen Station, North Starter Landfill (Rev. 0), Prepared by AECOM Technical Services of North Carolina, Inc., Dated: November 3, 2020, Table 7.3-2
-- No comments made.
The action leakage rate (ALR) is 421 GPAD, as presented in the Engineering and Facility Plan (AECOM, 2020).
GPAD - gallons per acre per day
The initial response leakage rate (IRLR) is 316 GPAD, as presented in the Engineering and Facility Plan (AECOM, 2020).
LDS - Leak Detection System
NSLF - North Starter Landfill
Page 1 of 1

TABLE 113
LEAK DETECTION SYSTEM MONITORING RESULTS - LEACHATE BASIN
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO. 3619-INDUS)
APRIL 2025 THROUGH AUGUSTR 2025
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, GASTON COUNTY, NORTH CAROLINA
ALN-LDSC
MONTHLY
MONTHLY
TOTAL
LEACHATE
AVERAGE
AVERAGE DAILY
AVERAGE DAILY
MONITORING
MONITORING
DURATION
VOLUME
VOLUME
DAILY
LEAKAGE RATE
LEAKAGE RATE
PERIOD
(DAYS)
TOTAL
RAINFALL
PUMPED
PUMPED,
BASIN
AREA
LEAKAGE
EXCEEDS IRLR:
EXCEEDS ALR:
COMMENTS
(GALLONS)'
(GALLONS)
RATE
945 GPAD
1,263 GPAD
(INCHES)'
(ACRE
(GPAD)
(GPAD)
(YES/NO)
(YES/NO)
LDS PUMP TOTALIZER
Apri12025
30
2.05
524
13,620
3.1
5.63
NO
NO
May 2025
31
4.77
1,042
14,662
10.84
NO
NO
significant rain
June 2025
30
2.44
782
15,444
8.41
NO
NO
July 2025
1 31
1 2.04
784
16,228
8.16
NO
NO
August 2025
1 31
1 8.25
1,300
17,528
13.53
NO
NO
significant rain
Prepared by: HCC Checked by: CSB
NOTES:
' Data provided by Duke Energy Carolinas, LLC.
2 As presented in the Engineering and Facility Plan, Allen Station, North Starter Landfill (Rev. 0), Prepared by AECOM Technical Services of North Carolina, Inc., Dated: November 3, 2020, Table 7.3-2
-- No comments made.
The action leakage rate (ALR) is 1,263 GPAD, as presented in the Engineering and Facility Plan (AECOM, 2020).
GPAD - gallons per acre per day
The initial response leakage rate (IRLR) is 945 GPAD, as presented in the Engineering and Facility Plan (AECOM, 2020).
LDS - Leak Detection System
Page 1 of 1

TABLE 2
LEACHATE ANALYTICAL RESULTS - AUGUST 27, 2025
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
APRIL 2025 THROUGH AUGUST 2025
NORTH STARTER LANDFILL & LEACHATE BASIN (PERMIT NO. 3619-INDUS)
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, GASTON COUNTY, NORTH CAROLINA
Constituent
ALN-NSLF-LCS1
ALN-LCSC
Field Parameters
pH (S.U.)
6.0
6.5
Temperature (Deg C)
20
24
Specific Conductance (µmhos/cm)
987
1,083
Dissolved Oxygen (mg/L)
3.1
8.4
Oxidation Reduction Potential (mV)
269
326
Turbidity (NTUs)
8.2
8.0
Laboratory Analyses
Antimony
< 2
0.361
Arsenic
1.74 J
2.27
Barium
42
49
Beryllium
< 2
< 2
Boron
2650
13300
Cadmium
0.219 J
0.232 J
Calcium (mg/L)
253
208
Chloride (mg/L)
21
26
Chromium
< 2
0.361
Cobalt
41.4
22.2
Copper
1.87 J
3.87
Fluoride (mg/L)
0.09 J
0.14 J
Iron
3080
184
Lead
0.139 J
0.326 J
Lithium
56
1220
Magnesium (mg/L)
61.4
64.5
Manganese
7720
3240
Mercury
< 0.05
< 0.05
Molybdenum
20.9
185
Nickel
58.7
42.1
Nitrate (as nitrogen) (mg-N/L)
0.04 J
5.2
Selenium
0.363 J
12.3
Silver
< 2
< 2
Sulfate (mg/L)
610
750
Total Dissolved Solids (TDS) (mg/L)
1260
1350
Thallium
0.815 J
0.908
Vanadium
0.402 J
0.983 1
Zinc
84
27 11
Prepared by: HCC Checked by: CSB
Notes:
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System (BASS) as of 10/06/2025.
Analytical results presented in micrograms per liter (µg/L) unless otherwise noted.
< - 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

TABLE 3
CONSTRUCTION DRAIN OUTLET ANALYTICAL RESULTS - AUGUST 27, 2025
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO. 3619-INDUS)
APRIL 2025 THROUGH AUGUST 2025
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, GASTON COUNTY, NORTH CAROLINA
Constituent
ALN-NSLF-CD2
Field Parameters
pH (S.U.)
6.1
Temperature (Deg C)
19
Specific Conductance (µmhos/cm)
98
Dissolved Oxygen (mg/L)
3.73
Oxidation Reduction Potential (mV)
328
Turbidity (NTUs)
6.6
Laboratory Analyses
Antimony
< 1
Arsenic
< 1
Barium
49
Beryllium
< 1
Beryllium (dissolved)
< 1
Boron
6 J
Cadmium
< 1
Cadmium (dissolved)
< 1
Calcium (mg/L)
7.60
Chloride (mg/L)
2.6
Chromium
2.52
Chromium (dissolved)
2.61
Cobalt
< 1
Copper
0.845 J
Copper (dissolved)
1.59
Fluoride (mg/L)
0.06 J
Iron
5 J
Lead
< 1
Lead (dissolved)
< 1
Lithium
< 5
Magnesium (mg/L)
2.08
Manganese
7
Mercury
< 0.05
Molybdenum
< 1
Nickel
0.226 J
Nickel (dissolved)
0.529 J
Nitrate (as nitrogen) (mg-N/L)
0.33 J
Selenium
< 1
Silver
< 1
Silver (dissolved)
< 1
Page 1 of 2

TABLE 3
CONSTRUCTION DRAIN OUTLET ANALYTICAL RESULTS - AUGUST 27, 2025
ENVIRONMENTAL CONTROLS MONITORING SEMIANNUAL REPORT
NORTH STARTER LANDFILL (PERMIT NO. 3619-INDUS)
APRIL 2025 THROUGH AUGUST 2025
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, GASTON COUNTY, NORTH CAROLINA
Constituent
ALN-NSLF-CD2
Laboratory Analyses Continued
Sulfate (mg/L)
4.4
Total Dissolved Solids (TDS) (mg/L)
<0.2
Total Hardness
89.0
Thallium
27.5
Vanadium
2.66
Zinc
< 15
Zinc (dissolved)
5 J
Prepared by: HCC Checked by: CSB
NOTES:
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System (BASS) as of 10/06/2025.
Analytical results presented in micrograms per liter (µg/L) unless otherwise noted.
<- 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 2 of 2

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Appendix A
Field Calibration and Sampling Forms

F-]CAMA [-]CCR © Landfill[—] NPDES CAP ❑ ASW ❑ LRBFJ SPECIAL STUDY
Site: A ►(m
FIELD SAMPLING LOG
Well/SW ID: NStF- Lc5 I
,,lots DUKE
� ENERG'
Date: 3-3- S
�-MGROUNDWATER SAMPLE SURFACE WATER SAMPLE a LEACHATE SAMPLE WLO WELL DEVELOPMENT
FIELD STAFF: 02- WEATHER: ❑SUNNY ❑PARTLYCLOUDY ❑OVERCAST ❑RAIN SNOW AIR TEMP: *F
COMPANY: © DUKE ENERGY FIELD METER TYPE/ SERIAL #: q S, 7S5�
❑ OTHER: TURBIDIMETER TYPE/ SERIAL #: O°cq-
START PURGE TIME: 1100 SAMPLE COLLECTION TIME: I IDS
PUMP/TUBING INTAKE DEPTH: (ft) DEPTH TO WATER: - (ft) MOLT FACTOR *: 0.163 ['(radius/12)2'3.14'7.48j
WELL DIAMETER: (in) HEIGHT OF WC: — (ft) WELL VOLUME: — (gal)
WELL DEPTH: (ft) TOTAL VOLUME PURGED: 1 w (gal)
TYPE OF PUMP:
Bladder
Peristaltic
12 Volt
Grundfos
Other ( )
PURGE METHOD:
i
SAMPLING METHOD:
/
PUMP SETTING:
P
a
❑ Tubin /Pump Inspected I cPs) I (Se`) I (sec)
❑Good [Tubing Bad []Pump Bad ❑Changed/Cleaned ❑Correct Next Event
Additional Notes:
Pb -2
Low Flow Sampling Stabilization Criteria
• pH
• Specific Conductance
• DO
• Turbidity
f 0.1 standard unit
i 5% in NS,'cm
t 0.2 mg/L or 10% saturation
less than 10 NTUs
TIME
WATER
LEVEL
FLOW
RATE
VOLUME
REMOVED
TEMPERATURE
DO
SPECIFIC
CONDUCTANCE
pH
ORP
TURBIDITY
(FT)
(x.xx)
(mL/min)
(x)
(gallons OR ml-)
(x.xx)
CC)
W
(mg/L)
(x.xx)
(PS/cm)
W
(su)
(x.xx)
(mv)
(x)
(NTU)
(x.x)
U�5
-
Sav
1•00
l$
Z,av
II g0
S•qr
3t8
Z7-
PLEASE REFER TO THE BACK OF THIS SHEET IF THE CHART ABOVE IS FULL
IS REDEVELOPMENT NEEDED (>10 NTUS)? ❑ YES ❑ NO WERE ALL SAMPLES ON ICE WITHIN 15 MINUTES? [YES ❑ NO
IS A TURBIDITY METER DUPLICATE REQUIRED? ❑ YES ❑ NO IS THE LOCATION FIELD VEHICLE ACCESSIBLE?❑ YES ❑ NO
IS THE TURBIDITY METER DUPLICATE TAKEN, WITHIN 15%? ❑ YES ❑ NO DUPLICATE 1 (NTU) DUPLICATE 2 (NTU)
FINAL SAMPLE OBSERVATIONS:
Appearance: le �� Cloudy Turbid Red/Iron Film on Surface Sheen � Floc
ADDITIONAL NOTES:
WELL TAG
PROTECTIVE CASING
LOCK
DUST CAP
CONCRETE PAD
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
Version 1.3 Revised 07/15/2024 JAS

❑CAMA ❑CCR 0 Landfill NPDES ❑CAP ❑ ASW ❑ LRB❑ SPECIAL STUDY
Site: 41(e ,
FIELD SAMPLING LOG
Well/SW ID: LCSC-
Date: 3 -3- 25"
•�*' DUKE
ENERG'
❑GROUNDWATER SAMPLE [—]SURFACE WATER SAMPLE 2LEACHATE SAMPLE ❑ WLO ❑ WELL DEVELOPMENT
FIELD STAFF: M WEATHER: [-]SUNNY ❑PARTLY CLOUDY ❑OVERCAST []RAIN SNOW AIR TEMP: `F
COMPANY: E DUKE ENERGY FIELD METER TYPE/ SERIAL M 9 t9 K
❑ OTHER: TURBIDIMETER TYPE/ SERIAL #: o/O'-
START PURGE TIME: !UN S SAMPLE COLLECTION TIME: 1 (/Sv
PUMPITUBING INTAKE DEPTH: (ft) DEPTH TO WATER: — (ft) MULT FACTOR*: 0.163 ['(radius/12)2'3.14'7.481
WELL DIAMETER: (in) HEIGHT OF WC: ' (ft) WELL VOLUME: — (gal)
WELL DEPTH: (ft) TOTAL VOLUME PURGED: / •:50 (gal)
TYPE OF PUMP:
Bladder
Peristaltic
12 Volt
Grundfos
Other ( )
PURGE METHOD:
SAMPLING METHOD:
PUMP SETTING:
P
R
o
❑ Tubin /Pump Inspected (PS) I (se`) I (Sec) I Low Flow Sampling Stabilization Criteria
❑ Good Tubing Bad ❑Pump Bad ❑Changed/Cleaned ❑Correct Next Event pH t 0.1 standard unit
• Specillc Conductance f 5% in pS/cm
Additional Notes: DO t 0.2 mg/L or 10% saturation
• Turbidity less than 10 NTUs
TIME
WATER
LEVEL
FLOW
RATE
VOLUME
REMOVED
TEMPERATURE
DO
SPECIFIC
CONDUCTANCE
pH
ORP
TURBIDITY
(FT)
(x.xx)
(mL/min)
W
(gallons OR ml-)
(x.xx)
CC)
(x)
(mg/L)
(x.xx)
(PS/CM)
W
(su)
(x.xx)
(mv)
W
(NTU)
(x.x)
10`18
_
1000
.7t
jug
16.6
PLEASE REFER TO THE BACK OF THIS SHEET IF THE CHART ABOVE IS FULL
IS REDEVELOPMENT NEEDED (>10 NTUS)? ❑ YES ❑ NO WERE ALL SAMPLES ON ICE WITHIN 15 MINUTES? EYES ❑ NO
IS A TURBIDITY METER DUPLICATE REQUIRED? ❑YES ❑ NO IS THE LOCATION FIELD VEHICLE ACCESSIBLE?❑ YES ❑ NO
IS THE TURBIDITY METER DUPLICATE TAKEN, WITHIN 15%? ❑ YES ❑ NO DUPLICATE 1 (NTU) DUPLICATE 2 (NTU)
FINAL SAMPLE OBSERVATIONS: `�C���
Appearance: Cloudy Turbid Red/iron Film on Surface Sheen 16s Floc
ADDITIONAL NOTES:
WELL TAG
PROTECTIVE CASING
LOCK
DUST CAP
CONCRETE PAD
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
Version 1.3 Revised 07/15/2024 JAS

❑CAMA ❑CCR ® Landfill[:] NPDES ❑CAP ❑ ASW ❑ LRB❑ SPECIAL STUDY
FIELD SAMPLING LOG
Site: Alin Well/SW ID:
N5t-F -Gbti
Date: 3-3-23
,,& DUKE
`t ENERG'
GROUNDWATER SAMPLE❑SURFACE WATER SAMPLE ❑LEACHATE SAMPLE ❑WLO ❑ WELL DEVELOPMENT
FIELD STA
COMPANY
CIL,
/❑ DUKE ENERGY
❑ OTHER:
WEATHER: ❑SUNNY ❑PARTLYCLOUDY ❑OVERCAST DRAIN ❑SNOW AIRTEMP: 'F
FIELD METER TYPE/ SERIAL #: 9s/%�C
TURBIDIMETER TYPE/ SERIAL M caw
START PURGE TIME: I u O
PUMP/TUBING INTAKE DEPTH: - (ft)
WELL DIAMETER: (in)
WELL DEPTH: (ft)
SAMPLE COLLECTION TIME: / t tS
DEPTH TO WATER: () MULT FACTOR *: 0.163 ['(radius/12)2'3.14'7.48]
HEIGHT OF WC: (ft) WELL VOLUME: — (gal)
TOTAL VOLUME PURGED: — (gal)
TYPE OF PUMP:
Bladder
Peristaltic
12 Volt
Grundfos
Other ( )
PURGE METHOD:
SAMPLING METHOD:
i
PUMP SETTING:
"
°
pow—
Tubing/Pump Inspected ! 15e�1 15a°� Low Flow Sampling Stabilization Criteria
❑ Good Tubing Bad ❑Pump Bad ❑Changed/Cleaned ❑Correct Next Event PH f 0.1 standard unit
Additional Notes: Specific Conductance f 5% in pS/cm
• DO t 0.2 mg/L or 10% saturation
• Turbidity less than 10 NTUs
TIME
WATER
LEVEL
FLOW
RATE
VOLUME
REMOVED
TEMPERATURE
DO
SPECIFIC
CONDUCTANCE
pH
ORP
TURBIDITY
(FT)
(x.xx)
(mL/min)
(x)
(gallons OR ml-)
(x.xx)
(°C)
(x)
(mg/L)
(x.xx)
(PS/CM)
(x)
(su)
(x.xx)
(mv)
(x)
(NTU)
(x.x)
1113
—
—
-
Iis
wvt
tU9
5.y2
33y
1•g
PLEASE REFER TO THE BACK OF THIS SHEET IF THE CHART ABOVE IS FULL
IS REDEVELOPMENT NEEDED (>10 NTUS)? ❑ YES ❑ NO WERE ALL SAMPLES ON ICE WITHIN 15 MINUTES? AYES LINO
IS A TURBIDITY METER DUPLICATE REQUIRED? ❑YES ❑ NO IS THE LOCATION FIELD VEHICLE ACCESSIBLE? Q'YES ❑ NO
IS THE TURBIDITY METER DUPLICATE TAKEN, WITHIN 15%? ❑ YES ❑ NO DUPLICATE 1 (NTU) DUPLICATE 2 (NTU)
FINAL SAMPLE OBSERVATIONS:
Appearance: lear Cloudy Turbid Redliron Film on Surface Sheen Fines Floc
ADDITIONAL NOTES:
WELL TAG
PROTECTIVE CASING
LOCK
DUST CAP
CONCRETE PAD
GOOD
BAD
I NONE
I GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
GOOD
BAD
NONE
Version 1.3 Revised 07/15/2024 JAS

Environmental Controls Monitoring Semiannual Report April 2025 through August 2025
North Starter Landfill (Permit No. 3619-INDUS)
Appendix B
Laboratory Reports, Data Validation Checklists,
and Chain -of -Custody Forms

Data Validation Checklist
Facility/Siie
Allen Steam Station
State
INC
Location/Sample IDs
LCSC, NSLF-CD2, NSLF-LCS1
Duke Central Lab
•
❑ Groundwater
❑ Surface Water
0 Other
/25080154 8/27/2025 8/28/2025 9/15/2025
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?
0
❑
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?
El0
No
❑
❑
❑
NIA
0
❑
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 time 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
❑
❑
❑
0
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
❑
❑
❑
❑
0
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
❑
❑
0
❑
❑
0
❑
7) Are there any qualifiers assigned by the laboratory and if so, are the qualifier definitions provided?
❑
0
❑
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?
❑
❑
0
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
0
❑
❑
21
❑
❑
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:
El
❑ p b) Were any parameters flagged by the lab as being outside the limits of control in the laboratory duplicate sample?
p
❑
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?
p
❑
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
❑
❑ 15) 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?
111111111111111111100
Lab Qualifiers:
J-Analyte detected above the MDL, but below the RL; analyte concentration should be considered an estimate.
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.
• The RPD between NSLF-LCS1 and the field duplicate is greater than 35% for Thallium (0.815/0.561 ug/L).
• Nitrate as N (0.04 mg-N/L) was detected in the Field Blank; Nitrate as N was also detected in the samples at concentrations less than lox the blank concentration.
• 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 NSLF-LCSl was reported as non -detect.
Review Determination: ❑ Usable 2 Usable with Required Actions ❑ Unusable
Initials/Signatures: Date:
Data Quality Reviewer REB 9/25/2025
Technical Lead CJS 9/25/2025

DUKE Analytical Laboratory
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
Order Number: J25080154
Project Name: ALLEN - NORTH STARTER LANDFILL
Task Code: LF
Customer Name(s): C Murphy,B Moeller,DOBrien,J Stowe,C Zahora,Synter
Customer Address: Allen Steam Station
253 Plant Allen Road
Belmont, NC 28012
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: Date: 9/15/2025
(Signature)
Peggy endall
Program Comments:
Please contact the Program Manager (Peggy Kendall) with any questions regarding this report.
Data Flags & Calculations:
Page 1 of 19
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 19
2025019728
ALLEN
27-Aug-25
10:10 AM
Connor Zahora
ALN_NSLF-CD2
2025019729
ALLEN
27-Aug-25
9:45 AM
Connor Zahora
ALN_LCSC
2025019730
ALLEN
27-Aug-25
10:00 AM
Connor Zahora
ALN_NSLF-LCS1
2025019731
ALLEN
27-Aug-25
Connor Zahora
ALN_FD-20250827-1
2025019732
ALLEN
27-Aug-25
9:00 AM
Connor Zahora
ALN_FB-20250827-0900
5 Total Samples

Page 3 of 19
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: 9/15/2025

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN NSLF-CD2
Collection Date: 08/27/2025 10:10 AM Loc code: ALN NSLF-CD2
Analyte
Result
Units
Qualifiers RDL
MDL
INORGANIC IONS BY IC - Q25080516
Chloride
2.6
mg/L
0.1
0.015
Fluoride
0.06 J
mg/L
0.1
0.04
Nitrate
1.4
mg/L
0.1
0.04
Nitrate as N
0.33
mg-N/L
0.023
0.002
Sulfate
4.4
mg/L
0.1
0.041
MERCURY (COLD VAPOR) IN WATER - Q25090047
Mercury (Hg)
0.01 U
ug/L
0.05
0.01
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
- Q25080550
Zinc (Zn)
0.005 J
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP - Q25080553
Barium (Ba)
0.049
mg/L
0.005
0.0011
Boron (B)
0.006 J
mg/L
0.05
0.0046
Calcium (Ca)
7.60
mg/L
0.05
0.0124
Iron (Fe)
0.005 J
mg/L
0.01
0.0033
Lithium (Li)
0.0027 U
mg/L
0.005
0.0027
Magnesium (Mg)
2.08
mg/L
0.02
0.0039
Manganese (Mn)
0.007
mg/L
0.005
0.0007
Total Hardness (Ca and Mg)
27.5
mg/L
0.19
(CaCO3)
Zinc (Zn)
0.0011 U
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q25080559
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
Cadmium (Cd)
0.0403 U
ug/L
1
0.0403
Chromium (Cr)
2.61
ug/L
1
0.2894
Copper (Cu)
1.59
ug/L
1
0.1994
Lead (Pb)
0.0579 U
ug/L
1
0.0579
Nickel (Ni)
0.529 J
ug/L
1
0.1004
Silver (Ag)
0.0521 U
ug/L
1
0.0521
Sample #: 2025019728
Matrix: GW RCRA
Page 4 of 19
DF
Method
Analysis Date/Time
Analyst
1
EPA 9056A
08/28/2025 09:08
BGN9034
1
EPA 9056A
08/28/2025 09:08
BGN9034
1
EPA 9056A
08/28/2025 09:08
BGN9034
1
EPA 9056A
08/28/2025 09:08
BGN9034
1
EPA 9056A
08/28/2025 09:08
BGN9034
1
EPA 7470A
09/03/2025 10:32
SNEGLIA
1
SW 601OD
09/02/2025 11:53
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 6010D
09/02/2025 13:01
DDAUZVA
1
SW 601OD
09/02/2025 13:01
DDAUZVA
1
SW 6020B
09/03/2025 14:13
MHALL3
1
SW 6020B
09/03/2025 14:13
MHALL3
1
SW 6020E
09/03/2025 14:13
MHALL3
1
SW 6020B
09/03/2025 14:13
MHALL3
1
SW 6020B
09/03/2025 14:13
MHALL3
1
SW 6020E
09/03/2025 14:13
MHALL3
1
SW 6020B
09/03/2025 14:13
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN NSLF-CD2
Collection Date: 08/27/2025 10:10 AM Loc code: ALN NSLF-CD2
Analyte
Result
Units Qualifiers
RDL
MDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q25080563
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)
2.52
ug/L
1
0.2894
1
Cobalt (Co)
0.1287 U
ug/L
1
0.1287
1
Copper (Cu)
0.845 J
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)
0.226 J
ug/L
1
0.1004
1
Selenium (Se)
0.2052 U
ug/L
1
0.2052
1
Silver (Ag)
0.0521 U
ug/L
1
0.0521
1
Thallium (TI) Low Level
0.0326 U
ug/L
0.2
0.0326
1
Vanadium (V)
2.66
ug/L
1
0.1119
1
TOTAL DISSOLVED SOLIDS - Q25080569
TDS
89.0
mg/L
25
25
1
Sample #: 2025019728
Matrix: GW RCRA
Page 5 of 19
Method
Analysis Date/Time
Analyst
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SW 6020B
09/03/2025 14:41
MHALL3
SW 6020E
09/03/2025 14:41
MHALL3
SM2540C
08/29/202514:44
LELL107

Certificate of Laboratory Analysis Page 6 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN LCSC Sample #: 2025019729
Collection Date: 08/27/2025 09:45 AM Loc code: ALN LCSC Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080516
Chloride 26 mg/L
Fluoride 0.14 J mg/L
Nitrate 23 mg/L
Nitrate as N 5.2 mg-N/L
Sulfate 750 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25090047
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080553
Barium (Ba)
0.049
mg/L
Boron (B)
13.3
mg/L
Calcium (Ca)
208
mg/L
Iron (Fe)
0.184
mg/L
Lithium (Li)
1.22
mg/L
Magnesium (Mg)
64.5
mg/L
Manganese (Mn)
3.24
mg/L
Zinc (Zn)
0.027
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080563
Antimony (Sb)
0.36 J
ug/L
Arsenic (As)
2.27
ug/L
Beryllium (Be)
0.3106 U
ug/L
Cadmium (Cd)
0.232 J
ug/L
Chromium (Cr)
0.36 J
ug/L
Cobalt (Co)
22.2
ug/L
Copper (Cu)
3.87
ug/L
Lead (Pb)
0.326 J
ug/L
Molybdenum (Mo)
185
ug/L
Nickel (Ni)
42.1
ug/L
Selenium (Se)
12.3
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.908
ug/L
Vanadium (V)
0.983 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080569
TDS 1350 mg/L
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
08/28/2025 09:55
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 09:55
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 09:55
BGN9034
0.115
0.002
5
EPA 9056A
08/28/2025 09:55
BGN9034
10
0.041
100
EPA 9056A
08/28/2025 09:55
BGN9034
0.05
0.01
1
EPA 7470A
09/03/2025 10:39
SNEGLIA
0.005
0.0011
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.05
0.0046
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.5
0.0124
10
SW 601OD
09/08/2025 11:01
DDAUZVA
0.01
0.0033
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.005
0.0027
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.02
0.0039
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.005
0.0007
1
SW 601OD
09/08/2025 11:01
DDAUZVA
0.015
0.0011
1
SW 601OD
09/08/2025 11:01
DDAUZVA
2
0.1259
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.168
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.3106
2
SW 6020E
09/10/2025 12:34
MHALL3
2
0.0403
2
SW 6020E
09/10/2025 12:34
MHALL3
2
0.2894
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.1287
2
SW 6020E
09/10/2025 12:34
MHALL3
2
0.1994
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.0579
2
SW 6020E
09/10/2025 12:34
MHALL3
2
0.1066
2
SW 6020E
09/10/2025 12:34
MHALL3
2
0.1004
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.2052
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.0521
2
SW 6020E
09/10/2025 12:34
MHALL3
0.4
0.0326
2
SW 6020B
09/10/2025 12:34
MHALL3
2
0.1119
2
SW 6020E
09/10/2025 12:34
MHALL3
50
25
1
SM2540C
08/29/202514:44
LELL107

Certificate of Laboratory Analysis Page 7 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN NSLF-LCS1 Sample #: 2025019730
Collection Date: 08/27/2025 10:00 AM Loc code: ALN NSLF-LCS1 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080516
Chloride 21 mg/L
Fluoride 0.09 J mg/L
Nitrate 0.2 J mg/L
Nitrate as N 0.04 J mg-N/L
Sulfate 610 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25090047
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080553
Barium (Ba)
0.042
mg/L
Boron (B)
2.65
mg/L
Calcium (Ca)
253
mg/L
Iron (Fe)
3.08
mg/L
Lithium (Li)
0.056
mg/L
Magnesium (Mg)
61.4
mg/L
Manganese (Mn)
7.72
mg/L
Zinc (Zn)
0.084
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080563
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
1.74 J
ug/L
Beryllium (Be)
0.3106 U
ug/L
Cadmium (Cd)
0.219 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
41.4
ug/L
Copper (Cu)
1.87 J
ug/L
Lead (Pb)
0.139 J
ug/L
Molybdenum (Mo)
20.9
ug/L
Nickel (Ni)
58.7
ug/L
Selenium (Se)
0.363 J
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.815
ug/L
Vanadium (V)
0.402 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080569
TDS 1260 mg/L
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
08/28/2025 10:11
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 10:11
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 10:11
BGN9034
0.115
0.002
5
EPA 9056A
08/28/2025 10:11
BGN9034
10
0.041
100
EPA 9056A
08/28/2025 10:11
BGN9034
0.05
0.01
1
EPA 7470A
09/03/2025 10:42
SNEGLIA
0.005
0.0011
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.05
0.0046
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.5
0.0124
10
SW 601OD
09/08/2025 11:05
DDAUZVA
0.01
0.0033
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.005
0.0027
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.02
0.0039
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.005
0.0007
1
SW 601OD
09/08/2025 11:05
DDAUZVA
0.015
0.0011
1
SW 601OD
09/08/2025 11:05
DDAUZVA
2
0.1259
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.168
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.3106
2
SW 6020E
09/10/2025 12:48
MHALL3
2
0.0403
2
SW 6020E
09/10/2025 12:48
MHALL3
2
0.2894
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.1287
2
SW 6020E
09/10/2025 12:48
MHALL3
2
0.1994
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.0579
2
SW 6020E
09/10/2025 12:48
MHALL3
2
0.1066
2
SW 6020E
09/10/2025 12:48
MHALL3
2
0.1004
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.2052
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.0521
2
SW 6020E
09/10/2025 12:48
MHALL3
0.4
0.0326
2
SW 6020B
09/10/2025 12:48
MHALL3
2
0.1119
2
SW 6020E
09/10/2025 12:48
MHALL3
50
25
1
SM2540C
08/29/202514:44
LELL107

Certificate of Laboratory Analysis Page 8 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN_FD-20250827-1 Duplicate Sample #: 2025019731
Collection Date: 08/27/2025 Loc code: ALN FD Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080516
Chloride 21 mg/L
Fluoride 0.04 U mg/L
Nitrate 0.17 J mg/L
Nitrate as N 0.04 J mg-N/L
Sulfate 620 mg/L
MERCURY (COLD VAPOR) IN WATER - Q25090047
Mercury (Hg) 0.01 U ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080553
Barium (Ba)
0.042
mg/L
Boron (B)
2.67
mg/L
Calcium (Ca)
256
mg/L
Iron (Fe)
3.02
mg/L
Lithium (Li)
0.055
mg/L
Magnesium (Mg)
62.2
mg/L
Manganese (Mn)
7.73
mg/L
Zinc (Zn)
0.086
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25080563
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
1.62
ug/L
Beryllium (Be)
0.3106 U
ug/L
Cadmium (Cd)
0.183 J
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
41.9
ug/L
Copper (Cu)
1.53
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
20.5
ug/L
Nickel (Ni)
58.4
ug/L
Selenium (Se)
0.311 J
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.561
ug/L
Vanadium (V)
0.438 J
ug/L
TOTAL DISSOLVED SOLIDS -
025080569
TDS 1270 mg/L
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
08/28/2025 08:52
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 08:52
BGN9034
0.5
0.04
5
EPA 9056A
08/28/2025 08:52
BGN9034
0.115
0.002
5
EPA 9056A
08/28/2025 08:52
BGN9034
10
0.041
100
EPA 9056A
08/28/2025 08:52
BGN9034
0.05
0.01
1
EPA 7470A
09/03/2025 10:44
SNEGLIA
0.005
0.0011
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.05
0.0046
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.5
0.0124
10
SW 601OD
09/08/2025 11:09
DDAUZVA
0.01
0.0033
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.005
0.0027
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.02
0.0039
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.005
0.0007
1
SW 601OD
09/08/2025 11:09
DDAUZVA
0.015
0.0011
1
SW 601OD
09/08/2025 11:09
DDAUZVA
1
0.1259
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.168
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.3106
1
SW 6020E
09/03/2025 14:50
MHALL3
1
0.0403
1
SW 6020E
09/03/2025 14:50
MHALL3
1
0.2894
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.1287
1
SW 6020E
09/03/2025 14:50
MHALL3
1
0.1994
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.0579
1
SW 6020E
09/03/2025 14:50
MHALL3
1
0.1066
1
SW 6020E
09/03/2025 14:50
MHALL3
1
0.1004
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.2052
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.0521
1
SW 6020E
09/03/2025 14:50
MHALL3
0.2
0.0326
1
SW 6020B
09/03/2025 14:50
MHALL3
1
0.1119
1
SW 6020E
09/03/2025 14:50
MHALL3
50
25
1
SM2540C
08/29/202514:44
LELL107

Certificate of Laboratory Analysis Page 9 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Site: ALN FB-20250827-0900 Field Blank Sample #: 2025019732
Collection Date: 08/27/2025 09:00 AM Loc code: ALN QA Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25080516
Chloride
0.015 U
mg/L
Fluoride
0.04 U
mg/L
Nitrate
0.04 U
mg/L
Nitrate as N
0.04
mg-N/L
Sulfate
0.041 U
mg/L
MERCURY (COLD VAPOR) IN
WATER - Q25090047
Mercury (Hg)
0.01 U
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25080553
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 -
Q25080563
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)
0.1119 U
ug/L
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
08/28/2025 11:29
BGN9034
0.1
0.04
1
EPA 9056A
08/28/2025 11:29
BGN9034
0.1
0.04
1
EPA 9056A
08/28/2025 11:29
BGN9034
0.023
0.002
1
EPA 9056A
08/28/2025 11:29
BGN9034
0.1
0.041
1
EPA 9056A
08/28/2025 11:29
BGN9034
0.05
0.01
1
EPA 7470A
09/03/2025 10:47
SNEGLIA
0.005
0.0011
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.05
0.0046
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.05
0.0124
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.01
0.0033
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.005
0.0027
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.02
0.0039
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.005
0.0007
1
SW 601OD
09/02/2025 12:45
DDAUZVA
0.015
0.0011
1
SW 601OD
09/02/2025 12:45
DDAUZVA
1
0.1259
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.168
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.3106
1
SW 6020E
09/03/2025 14:58
MHALL3
1
0.0403
1
SW 6020E
09/03/2025 14:58
MHALL3
1
0.2894
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.1287
1
SW 6020E
09/03/2025 14:58
MHALL3
1
0.1994
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.0579
1
SW 6020E
09/03/2025 14:58
MHALL3
1
0.1066
1
SW 6020E
09/03/2025 14:58
MHALL3
1
0.1004
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.2052
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.0521
1
SW 6020E
09/03/2025 14:58
MHALL3
0.2
0.0326
1
SW 6020B
09/03/2025 14:58
MHALL3
1
0.1119
1
SW 6020E
09/03/2025 14:58
MHALL3
Qualifiers:
J Analyte detected above the MDL, but below the RL. Analyte concentration should be considered an estimate.

Certificate of Laboratory Analysis Page 10 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080516 Dionex INORGANIC IONS BY IC
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
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
0.025
0.025
mg/L
1
0.041
0.1
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
5.15
5.15
mg/L
1
0.015
5
103
80
120
Fluoride
4.84
4.84
mg/L
1
0.04
5
96.8
80
120
Nitrate
5.26
5.26
mg/L
1
0.04
5
105
80
120
Sulfate
5.08
5.08
mg/L
1
0.041
5
102
80
120
MS # 1
Parent Sample:
J25080154 -- 2025019728
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
7.69
7.69
mg/L
1
0.015
5
101
80
120
Fluoride
4.91
4.91
mg/L
1
0.04
5
97.1
80
120
Nitrate
6.42
6.42
mg/L
1
0.04
5
99.5
80
120
Sulfate
9.33
9.33
mg/L
1
0.041
5
99.2
80
120
MSD # 1
Parent Sample:
J25080154 -- 2025019728
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Qualifier
Chloride
7.67
7.67
mg/L
1
0.015
5
100
80
120
0.273
Fluoride
4.89
4.89
mg/L
1
0.04
5
96.7
80
120
0.408
Nitrate
6.4
6.4
mg/L
1
0.04
5
99.1
80
120
0.328
Sulfate
9.29
9.29
mg/L
1
0.041
5
98.5
80
120
0.397

Certificate of Laboratory Analysis Page 11 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25090047 HG 7470 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter
Measured
Final
Mercury (Hg)
-0.01
-0.01
Blank # 2
Parameter
Measured
Final
Mercury (Hg)
-0.007
-0.007
Blank # 3
Parameter
Measured
Final
Mercury (Hg)
0
0
LCS # 1
Parameter
Measured
Final
Mercury (Hg)
2.14
2.14
LCS # 2
Parameter
Measured
Final
Mercury (Hg)
2.2
2.2
MS # 1
Parameter
Measured
Final
Mercury (Hg)
1.05
1.05
MSD # 1
Parameter
Measured
Final
Mercury (Hg)
1.05
1.05
MS # 2
Parameter
Measured
Final
Mercury (Hg)
1.01
1.01
MSD # 2
Parameter
Measured
Final
Mercury (Hg)
1.04
1.04
MS # 3
Parameter
Measured
Final
Mercury (Hg)
1.05
1.05
MSD # 3
Parameter
Measured
Final
Mercury (Hg)
1.05
1.05
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
ug/L
1
0.01
0.05
< MDL
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
ug/L
1
0.01
0.05
< MDL
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
ug/L
1
0.01
0.05
< MDL
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
ug/L
1
0.01
2
107
85 115
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
ug/L
1
0.01
2
110
85 115
Parent Sample:
J25080154 -- 2025019728
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
ug/L
1
0.01
1
105
75 125
Parent Sample:
J25080154 -- 2025019728
Units
Dil
MDL
Spike
% Recover v
LCL UCL RPD
Qualifier
ug/L
1
0.01
1
105
75 125 0.381
Parent Sample:
J25080489 -- 2025021200
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
ug/L
1
0.01
1
101
75 125
Parent Sample:
J25080489 -- 2025021200
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
ug/L
1
0.01
1
104
75 125 2.44
Parent Sample:
J25080489 -- 2025021210
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
ug/L
1
0.01
1
105
75 125
Parent Sample:
J25080489 -- 2025021210
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
ug/L
1
0.01
1
105
75 125 0.0954

Certificate of Laboratory Analysis Page 12 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080550 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
LCS # 1
Parameter Measured Final
Zinc (Zn)-0.00315-0.00315
Parameter Measured Final
Zinc (Zn) 4.8 4.8
LCSD # I
Parameter Measured Final
Zinc (Zn) 4.85 4.85
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 96.1 80 120
Units Dil MDL Spike % Recovery LCL UCL
mg/L 1 0.0011 5 97 80 120
Qualifier
Qualifier
RPD Qualifier
0.912

Certificate of Laboratory Analysis Page 13 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080553 ICP_TRM TOTAL RECOVERABLE METALS BY 1CP
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Barium (Ba)
-0.000002
-0.000002
mg/L
1
0.0011
0.005
< MDL
Boron (B)
-0.005
-0.005
mg/L
1
0.0046
0.05
< MDL
Calcium (Ca)
0.00635
0.00635
mg/L
1
0.0124
0.05
< MDL
Iron (Fe)
-0.000567
-0.000567
mg/L
1
0.0033
0.01
< MDL
Lithium (Li)
-0.00641
-0.00641
mg/L
1
0.0027
0.005
< MDL
Magnesium (Mg)
-0.000174
-0.000174
mg/L
1
0.0039
0.02
< MDL
Manganese (Mn)
-0.00103
-0.00103
mg/L
1
0.0007
0.005
< MDL
Zinc (Zn)
-0.0075
-0.0075
mg/L
1
0.0011
0.015
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Barium (Ba)
4.82
4.82
mg/L
1
0.0011
5
96.3
80
120
Boron (B)
4.84
4.84
mg/L
1
0.0046
5
93
80
120
Calcium (Ca)
4.67
4.67
mg/L
1
0.0124
5
93.4
80
120
Iron (Fe)
4.84
4.84
mg/L
1
0.0033
5
96.7
80
120
Lithium (Li)
4.88
4.88
mg/L
1
0.0027
5
97.6
80
120
Magnesium (Mg)
4.96
4.96
mg/L
1
0.0039
5
100
80
120
Manganese (Mn)
4.99
4.99
mg/L
1
0.0007
5
99.9
80
120
Zinc (Zn)
4.87
4.87
mg/L
1
0.0011
5
97.3
80
120
MS # 1
Parent Sample:
J25080154
-- 2025019728
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL
UCL
Barium (Ba)
4.89
4.89
mg/L
1
0.0011
5
96.8
75
125
Boron (B)
4.83
4.83
mg/L
1
0.0046
5
93.2
75
125
Calcium (Ca)
12.5
12.5
mg/L
1
0.0124
5
98
75
125
Iron (Fe)
4.84
4.84
mg/L
1
0.0033
5
96.8
75
125
Lithium (Li)
4.87
4.87
mg/L
1
0.0027
5
97.4
75
125
Magnesium (Mg)
6.96
6.96
mg/L
1
0.0039
5
102
75
125
Manganese (Mn)
5.01
5.01
mg/L
1
0.0007
5
100
75
125
Zinc (Zn)
4.85
4.85
mg/L
1
0.0011
5
96.9
75
125
MSD # 1
Parent Sample:
J25080154
-- 2025019728
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Barium (Ba)
4.86
4.86
mg/L
1
0.0011
5
96.3
75
125
0.533
Boron (B)
4.85
4.85
mg/L
1
0.0046
5
93.3
75
125
3.49
Calcium (Ca)
12.6
12.6
mg/L
1
0.0124
5
101
75
125
1.17
Iron (Fe)
4.86
4.86
mg/L
1
0.0033
5
97.1
75
125
0.309
Lithium (Li)
4.87
4.87
mg/L
1
0.0027
5
97.4
75
125
0
Magnesium (Mg)
6.97
6.97
mg/L
1
0.0039
5
101
75
125
2.62
Manganese (Mn)
5.01
5.01
mg/L
1
0.0007
5
100
75
125
0.02
Qualifier
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 14 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080553 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MSD # 1 Parent Sample: J25080154 -- 2025019728
Parameter Measured Final Units Dil MDL Spike % Recovery LCL UCL RPD Qualifier
Zinc (Zn) 4.86 4.86 mg/L 1 0.0011 5 97.1 75 125 0.206

Certificate of Laboratory Analysis Page 15 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080559 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)
-0.008
-0.008
ug/L
1
0.3106
1
< MDL
Cadmium (Cd)
0.008
0.008
ug/L
1
0.0403
1
< MDL
Chromium (Cr)
0.032
0.032
ug/L
1
0.2894
1
< MDL
Copper (Cu)
0.01
0.01
ug/L
1
0.1994
1
< MDL
Lead (Pb)
0
0
ug/L
1
0.0579
1
< MDL
Nickel (Ni)
0.005
0.005
ug/L
1
0.1004
1
< MDL
Silver (Ag)
0.006
0.006
ug/L
1
0.0521
1
< MDL
Parameter
Measured
Final
Units
Dil
MDL
S ike
% Recovery
LCL
UCL Qualifier
Beryllium (Be)
50.2
50.2
ug/L
1
0.3106
50
100
80
120
Cadmium (Cd)
48.5
48.5
ug/L
1
0.0403
50
97
80
120
Chromium (Cr)
47.4
47.4
ug/L
1
0.2894
50
94.8
80
120
Copper (Cu)
48.9
48.9
ug/L
1
0.1994
50
97.8
80
120
Lead (Pb)
45.6
45.6
ug/L
1
0.0579
50
91.3
80
120
Nickel (Ni)
48.1
48.1
ug/L
1
0.1004
50
96.3
80
120
Silver (Ag)
47.8
47.8
ug/L
1
0.0521
50
95.6
80
120
LCSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD Qualifier
Beryllium (Be)
51.6
51.6
ug/L
1
0.3106
50
103
80
120
2.76
Cadmium (Cd)
49.5
49.5
ug/L
1
0.0403
50
99
80
120
2.07
Chromium (Cr)
47.9
47.9
ug/L
1
0.2894
50
95.8
80
120
0.978
Copper (Cu)
49.6
49.6
ug/L
1
0.1994
50
99.2
80
120
1.43
Lead (Pb)
46.8
46.8
ug/L
1
0.0579
50
93.6
80
120
2.55
Nickel (Ni)
48.9
48.9
ug/L
1
0.1004
50
97.8
80
120
1.59
Silver (Ag)
48.6
48.6
ug/L
1
0.0521
50
97.2
80
120
1.7

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080563 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)
0.014
0.014
ug/L
1
0.168
1
< MDL
Beryllium (Be)
0.003
0.003
ug/L
1
0.3106
1
< MDL
Cadmium (Cd)
0.001
0.001
ug/L
1
0.0403
1
< MDL
Chromium (Cr)
0.017
0.017
ug/L
1
0.2894
1
< MDL
Cobalt (Co)
0.001
0.001
ug/L
1
0.1287
1
< MDL
Copper (Cu)
0.085
0.085
ug/L
1
0.1994
1
< MDL
Lead (Pb)
0.001
0.001
ug/L
1
0.0579
1
< MDL
Molybdenum (Mo)
0.011
0.011
ug/L
1
0.1066
1
< MDL
Nickel (Ni)
0.005
0.005
ug/L
1
0.1004
1
< MDL
Selenium (Se)
0.002
0.002
ug/L
1
0.2052
1
< MDL
Silver (Ag)
0.002
0.002
ug/L
1
0.0521
1
< MDL
Thallium (TI) Low Level
0.006
0.006
ug/L
1
0.0326
0.2
< MDL
Vanadium (V)
0.01
0.01
ug/L
1
0.1119
1
< MDL
LCS # 1
Page 16 of 19
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL
UCL
Antimony (Sb)
50.9
50.9
ug/L
1
0.1259
50
102
80
120
Arsenic (As)
48.8
48.8
ug/L
1
0.168
50
97.6
80
120
Beryllium (Be)
48.9
48.9
ug/L
1
0.3106
50
97.8
80
120
Cadmium (Cd)
48.5
48.5
ug/L
1
0.0403
50
97.1
80
120
Chromium (Cr)
47.2
47.2
ug/L
1
0.2894
50
94.5
80
120
Cobalt (Co)
49.6
49.6
ug/L
1
0.1287
50
99.3
80
120
Copper (Cu)
48.9
48.9
ug/L
1
0.1994
50
97.7
80
120
Lead (Pb)
49.5
49.5
ug/L
1
0.0579
50
99
80
120
Molybdenum (Mo)
49.5
49.5
ug/L
1
0.1066
50
99
80
120
Nickel (Ni)
49.2
49.2
ug/L
1
0.1004
50
98.3
80
120
Selenium (Se)
48.6
48.6
ug/L
1
0.2052
50
97.3
80
120
Silver (Ag)
48.3
48.3
ug/L
1
0.0521
50
96.7
80
120
Thallium (TI) Low Level
48.2
48.2
ug/L
1
0.0326
50
96.3
80
120
Vanadium (V)
47.9
47.9
ug/L
1
0.1119
50
95.8
80
120
MS # 1
Parent Sample:
J25080154
-- 2025019729
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Antimony (Sb)
25.6
51.1
ug/L
2
0.1259
50
101
75
125
Arsenic (As)
27.6
55.2
ug/L
2
0.168
50
106
75
125
Beryllium (Be)
22.9
45.7
ug/L
2
0.3106
50
91.4
75
125
Cadmium (Cd)
25.6
51.1
ug/L
2
0.0403
50
102
75
125
Chromium (Cr)
23.6
47.2
ug/L
2
0.2894
50
93.8
75
125
Cobalt (Co)
36.7
73.4
ug/L
2
0.1287
50
102
75
125
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080563 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Copper (Cu)
26.1
52.1
ug/L
2
0.1994
50
Lead (Pb)
27.1
54.3
ug/L
2
0.0579
50
Molybdenum (Mo)
121
243
ug/L
2
0.1066
50
Nickel (Ni)
46.8
93.7
ug/L
2
0.1004
50
Selenium (Se)
31.8
63.6
ug/L
2
0.2052
50
Silver (Ag)
24.4
48.8
ug/L
2
0.0521
50
Thallium (TI) Low Level
23.7
47.4
ug/L
2
0.0326
50
Vanadium (V)
24.7
49.5
ug/L
2
0.1119
50
MSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Antimony (Sb)
25.9
51.8
ug/L
2
0.1259
50
Arsenic (As)
27.9
55.9
ug/L
2
0.168
50
Beryllium (Be)
23.5
47
ug/L
2
0.3106
50
Cadmium (Cd)
25.8
51.6
ug/L
2
0.0403
50
Chromium (Cr)
24.1
48.2
ug/L
2
0.2894
50
Cobalt (Co)
37.1
74.2
ug/L
2
0.1287
50
Copper (Cu)
26.2
52.3
ug/L
2
0.1994
50
Lead (Pb)
27.4
54.8
ug/L
2
0.0579
50
Molybdenum (Mo)
121
241
ug/L
2
0.1066
50
Nickel (Ni)
47
94
ug/L
2
0.1004
50
Selenium (Se)
31.8
63.7
ug/L
2
0.2052
50
Silver (Ag)
24.6
49.2
ug/L
2
0.0521
50
Thallium (TI) Low Level
24
48
ug/L
2
0.0326
50
Vanadium (V)
25.1
50.2
ug/L
2
0.1119
50
Page 17 of 19
Parent Sample: J25080154 -- 2025019729
% Recovery
LCL
UCL
96.5
75
125
108
75
125
115
75
125
103
75
125
103
75
125
97.5
75
125
92.9
75
125
97
75
125
Parent Sample: J25080154 -- 2025019729
% Recovery
LCL
UCL
RPD
103
75
125
1.29
107
75
125
1.27
93.9
75
125
2.67
103
75
125
0.977
95.7
75
125
2.05
104
75
125
0.974
96.9
75
125
0.381
109
75
125
0.972
112
75
125
0.559
104
75
125
0.355
103
75
125
0.151
98.3
75
125
0.79
94.2
75
125
1.28
98.5
75
125
1.56
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 18 of 19
This report shall not be reproduced, except in full.
Order # J25080154
Level II QC Summary
Q25080569 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Blank # 2
Parameter Measured Final
TDS -0.2
Parameter Measured Final
TDS -0.3
Duplicate # 1
Parameter Measured Final
TDS 65
Duplicate # 2
Parameter Measured Final
TDS 175
LCS # 1
LCS # 2
Parameter Measured Final
TDS 489
Parameter Measured Final
TDS 487
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
mg/L
1
25
25
< MDL
Units
Dil
MDL
RDL
Relative Concentration
Qualifier
mg/L
1
25
25
< MDL
Parent Sample:
J25070165 -- 2025016911
Units
Dil
MDL
RPD
Qualifier
mg/L
1
25
3.13
Parent Sample:
J25080651
-- 2025022078
Units
Dil
MDL
RPD
Qualifier
mg/L
1
25
2.82
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
mg/L
1
25
500
97.8
90
110
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
mg/L
1
25
500
97.4
90
110

CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
-
-f' DUKE
ENERGY
tProject
-Duke Energy Analytical Laboratory --
Mall CodeMGG3A2 (Build 7405I
1 9 i
13339HayeraFerry' i
Huntersvllle, N.C. 28878 i
(704) $754245
Faa:(10418754838 _ ________j
!----------------------------------------------------------------------- Anal IcalLaborato Use Onl-------
i Page 19 of 19
Nc x_ Page _1_of 1_
Samples Otl Inatl,p Fram j
9 SC_ i DISTRIBUTION
SAMPLE PROGRAM ! ORIGINAL to LAB, COPY to CLIENT
Ground Water X_ NPDES !
Drinking Water_ UST_
RCRA Waste _
- - - -
i Order#J25080154 Matrix
i
WATER
!Logged By Date a Tim
! �i�
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Name ALLEN NORTH STARTER LANDFILL
PERMIT# 3619-INDUS
Phone No:
!Vendor
L7�Z`
Cool4 To rap C
-- - `-.._p1. L..................................................rite_.._.._.._.._.._.._..-
Client COURTNEY MURPHY, BRYAN MOELLER, DEE
O'BRIEN, JOSH STOWE, CONNOR ZAHORA
:PO #
! Filtration (0.45 um)
preservative
L.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._..
b Unfiltered b
Filtered
Operating Unit: AS00
Process:NGRDWTR
Account:
ICE
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Project: AAS000415 Activity ID: Facility ID:ALN Container Volume (mL)
Program l EQuiS Task Code: ALNI I Sub-ProgramlTask Code: Container Type
LF
Customer to complete all appropriate non -shaded areas. w
!- - ----- ---! Sample Description or ID
Collection Information
! SAMPLE ID !
' NUMBER E A
! Date Time Printed Name Signature
500
300
500
250
HOPE
PET
PET
HOPE
(Metals Prep
(ICP - SW 6010D) Ba, B,
Ca, Fe, Li, Mg, Mn, Zn
(a) l Hg (SW 7470A) I
(IMS - SW 6020B) Sid,
As, Be, Cd, Cr, Co, Cu,
Pb, Mo, Ni, Se, Ag,
TILL). V 14
Cl, F,
NO3-N
(48-Hr
Hold
Time),
SO4
TDS
SW6010D
Zn I SW
60208 Be,
Cd, Cr,
Cu, Pb, Ni,
Ag
w
c
1O
`o
O
c
~
2025019 8
ALN_NSLF-CD2
27 ZS
COI U
CvNNu2 7-Flapriq
x
1
1
1
1
4
2025019729
ALN_LCSC
x
1
1
1
3
!. 2025019730 !.
ALN_NSLF-LCS1
(OOU
x
1
1
1
3
i 2025019731
ALN_FD- 20250877- l
x
1
1
1
3
;; 20250
ALN_FB-202S0 27-6CI00
bggV
x
1
1
2
!
i!!
i !
i •
j
Relinquished By DatelTime
Accepted B Daterrime
b
Requested Turnaround
O
v
�
Relinquished By Date/Time
Accep etl By: DatelTime
Days
or21
re C
dc o
Relinquished By DatelTime
Accepted By: Date/Time
E
14 Days X
c �
m „
o v
Seal/Locked By Date/Time
Sealed/Lock Opened By DateRime
a
'7 Days
E w:
_ w
-
m`
Comments
EQUIS EDO Required
o
'Other
[For ALN_NSLF-CD02, include Ca,Mg,Total Hardness in ICP_TRM metals list]
' Add. Cost Will Apply
U