1119_DukeAsheville_2025Q3WQMR_FID2187037_20260116

Ar' DUKE
ENERGY®
PROGRESS
January 16, 2026
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. 70 Highway
Swannanoa, NC 28778
Attn: Ms. Sarah Moutos (submitted electronically)
410 S. Wilmington Street
NCRH 8
Raleigh, NC 27601
Re: Semiannual Water Quality Monitoring Report — September 2025, CCR Landfill, Permit No. 1119-
INDUS-2020, Asheville Steam Electric Plant, Buncombe County, North Carolina
Dear Ms. Moutos:
Duke Energy is providing the results from the September 2025 semiannual water quality monitoring event
for the Duke Energy Progress Asheville CCR Landfill (1119-INDUS), located in Arden, Buncombe County
North Carolina. The monitoring event was conducted on September 23, 2025, in accordance with the
approved Water Quality Monitoring Plan (WQMP). The September 2025 monitoring event included
obtaining samples from nine groundwater monitoring wells, two surface water locations, and one sample
of composite leachate. The engineered drain (seep) location ASV-DP-4 and surface water location ASV-
LF-SW-1 were not sampled during the monitoring event because of dry conditions.
The groundwater analytical results are compared to the groundwater standards found in Title 15A NCAC
02L .0202 (02L Standards). The surface water results are compared to the surface water standards found
in Title 15A NCAC 02B .0211 (02B Standards) for Class C waters. Leachate analytical results are not
compared to groundwater or surface water quality standards.
Duke Energy personnel sample designated locations for groundwater, surface water and leachate at the
Asheville CCR Landfill semiannually during March and September. The next water quality monitoring
event for the CCR Landfill is planned for March 2026 with a report of monitoring results to follow. Please
contact me at [e-mail] if you have any questions or need any clarification
regarding the information provided.
Respectfully submitted,
A //�
John R. Toepfer, P.E.
Lead Engineer
Waste & Groundwater Programs

Ms. Sarah Moutos
January 16, 2026
Page 2
Attachments: Semiannual Water Quality Monitoring Report — September 202S Sampling Event,
SynTerra, January 2026
cc/att: Elizabeth Werner, Sherri Stanley - NCDEQ Solid Wate Section
Joe Wilson, Ashley Healy, Teresa Williams — Duke Energy
Connor Zahora, Tyler Hardin — Duke Energy
Scott Spinner — SynTerra Corp.

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: Scott Spinner 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 Progress 1119-INDUS-2020 Buncombe .0500 September 23, 2025
Asheville Steam Electric Plant
CCR Landfill
Envi ronmental Status : ( Check al I that apply)
E] Initial/Baseline Monitoring 10 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) Dates
Leachate monitoring data
✓ Surface water monitoring data Q Other (specify) Other, if applicable.
Notification Attached?
RV
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 A. Spinner Project Manager
Facility Representative Name ( Print) Title
Affix NC Licensed/ Professional Geologist or PE Seal
January 7, 2026
Signature Date
148 River Street, Suite 220, Greenville SC 29601
Facility Representative Address
C-387 (Geological)
NC Geological Corporation Number or NC PE Firm License Number
(if applicable effective May 1 , 2009)
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2243
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Revised
10/01 /2025

REPORT VERIFICATION
PROJECT: SEMIANNUAL WATER QUALITY MONITORING REPORT
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
CCR LANDFILL
PERMIT NO. 1119-INDUS-2020
TITLE: SEPTEMBER 2025 SAMPLING EVENT
This document has been reviewed for accuracy and quality commensurate with the intended
application.
Prepared by: Date
Approved by: Date
Project Manager: Kelly Ferri
1/7/2026
1/7/2026
Licensed Geologist Seal:
SynTerra
148 River Street, Suite 220
Greenville, SC 29601
North Carolina Geological Corporation Number C-387

Terr Science & Engineering Consultants
synsynierrecorp.com
SEMIANNUAL
WATER QUALITY MONITORING REPORT
CCR LANDFILL
PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
46 DUKE ENERGY LANE
ARDEN, NORTH CAROLINA 28704
JANUARY 2026
PREPARED FOR
P t4i DUCE
ENERGY
PROC31RE53
DUKE ENERGY PROGRESS, LLC
Anna Windle
Peer Reviewer
Crystal Barker
Project Scientist
Scott Spinner, NC L.G. No. 2243
Project Manager/Senior Peer Reviewer

Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
TABLE OF CONTENTS
SECTION
PAGE
1.0
INTRODUCTION AND BACKGROUND.........................................................................
1-1
1.1
Site and CCR Landfill Information................................................................................1-1
1.2
Hydrogeologic Setting..................................................................................................1-2
1.3
CCR Landfill Semiannual Monitoring Program............................................................1-2
2.0
METHODS................................................................................................................
2-1
2.1
Sampling and Analysis Methods..................................................................................
2-1
2.2
Regulatory Criteria.......................................................................................................2-2
2.3
Statement of Work......................................................................................................
2-2
3.0
RESULTS...................................................................................................................3-1
3.1
Site Groundwater Flow................................................................................................3-1
3.2
Historical Range Data...................................................................................................3-1
3.3
Analytical Results.........................................................................................................3-2
3.4
Quality Assurance/Quality Control..............................................................................
3-3
4.0
REFERENCES.............................................................................................................4-1
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
LIST OF FIGURES
Figure 1 Site Location
Figure 2 Monitoring Locations
Figure 3A Groundwater Elevation Contours — Surficial and Transition Flow Zones
Figure 3B Groundwater Elevation Contours — Bedrock Flow Zone
LIST OF TABLES
Table 1 Multimedia Sample Locations
Table 2 Summary of Well Construction Information
Table 3A Summary of Groundwater Constituents and Analytical Methods
Table 3B Summary of Surface Water Constituents and Analytical Methods
Table 3C Summary of Leachate Constituents and Analytical Methods
Table 4 Field Data Parameters
Table 5 Groundwater Seepage Velocities
Table 6 Groundwater Field and Analytical Results
Table 7 Field and Analytical Results Equal to or Greater than Groundwater Quality
Standards
Table 8 Surface Water Field and Analytical Results
Table 9 Field and Analytical Results Equal to or Greater than Surface Water Quality
Standards
Table 10 Leachate Field and Analytical Results
LIST OF APPENDICES
Appendix A Field Sampling Forms
Appendix B Laboratory Report and Chain -of -Custody Forms
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
LIST OF ACRONYMS AND ABBREVIATIONS
µg/L
micrograms per liter
02B standard
NCAC, Title 15A, Subchapter 0213, Surface Water and Wetland Standards
02L standard
NCAC, Title 15A, Subchapter 02L, Groundwater Classification and Standards
40 CFR
Title 40 Code of Federal Regulations
ASD
alternate source demonstration
Asheville Plant
Asheville Steam Electric Plant
CCR
Coal Combustion Residuals
Duke Energy
Duke Energy Progress, LLC
DWM
Division of Waste Management
EDD
electronic data deliverable
ISTVs
in -stream target values
mg/L
milligrams per liter
MSE
mechanically stabilized earth
NCAC
North Carolina Administrative Code
NCDEQ
North Carolina Department of Environmental Quality
NRWQC
National Recommended Water Quality Criteria
QA
quality assurance
QC
quality control
Site
Asheville Steam Electric Plant
TDS
total dissolved solids
SWS
Solid Waste Section
USEPA
U.S. Environmental Protection Agency
WQMP
Water Quality Monitoring Plan
January 2026
Page iii
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
FI��1•1i39.10I1111400 i'LII_1011 02 7_[10l1101119111,01101
This semiannual report pertains to the Duke Energy Progress, LLC (Duke Energy) Asheville
Steam Electric Plant (Asheville Plant or Site) Coal Combustion Residuals (CCR) Landfill (Permit
No. 1119-INDUS-2020) and documents the results of the September 2025 groundwater, surface
water, seep, and leachate monitoring event.
Monitoring results show that groundwater constituents greater than comparison criteria in
downgradient monitoring wells are within background or baseline concentration ranges, except
for sulfate and total dissolved solids (TDS) in monitoring well ASV-LMW-3B. Sulfate and TDS
concentrations in ASV-LMW-3B are attributed to the mineral solubilization of gypsum (or
another sulfate -bearing mineral) present in the material used to construct the mechanically
stabilized earth (MSE) berm at the CCR Landfill (SynTerra, 2025).
1.1 Site and CCR Landfill Information
Duke Energy owns and operates the Asheville Plant, located on approximately 786 acres at 46
Duke Energy Lane in Arden, Buncombe County, North Carolina (Figure 1).
The Asheville Plant began operations in 1964 with the construction of two coal-fired electricity -
generating units. Throughout the period of coal-fired generation, CCR was managed and stored
on -Site in the 1964 and 1982 Ash Basins. The Asheville Plant ceased burning coal in January
2020, and the coal-fired units were replaced with a natural gas combined -cycle station for
electricity generation; thus, the facility no longer generates CCR. Excavation of the 1982 Ash
Basin was completed in September 2016, and excavation of the 1964 Ash Basin was completed
in June 2022.
Development and construction activities for the on -Site double -lined CCR Landfill began in
February 2020 and were completed in March 2021. The CCR Landfill was constructed in an area
previously developed as a laydown yard, located north of and adjacent to the former 1964 Ash
Basin (Figure 1). The CCR Landfill was constructed to support the last phase of ash excavation
from the former 1964 Ash Basin. The CCR Landfill received a Permit Approval to Operate from
the North Carolina Department of Environmental Quality (NCDEQ) Division of Waste
Management (DWM) on April 1, 2021, and the initial placement of CCR in the CCR Landfill
occurred on the same day. The Operations Plan, Asheville Steam Electric Plant — CCR Landfill
(1119-INDUS) Rev. 2 (Landfill Operations Plan; Geosyntec, 2021) and CCR Landfill Permit (Permit
No. 1119-INDUS-2020) outline a variety of landfill -approved wastes; however, the primary
waste disposed of in the CCR Landfill is CCR (fly ash and bottom ash). Closure -in -place was
initiated at the CCR Landfill in September 2022 and was completed in April 2023.
The CCR Landfill monitoring network and surrounding physiographic features are depicted on
Figure 2.
January 2026 Page 1-1
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
1.2 Hydrogeologic Setting
The Asheville Plant is located within the Blue Ridge physiographic province, where soil overlying
the bedrock formed from the in -place weathering of bedrock. Groundwater at the Site occurs in
three interconnected flow zones. The shallowest groundwater flow zone —the surficial flow
zone —occurs in the residual soil and the upper section of saprolite. Beneath the surficial flow
zone, the transition flow zone occurs in the lower portions of the saprolite and partially
weathered bedrock and is the most permeable part of the Site hydrogeologic system. Bedrock
underlies the transition flow zone and composes the least permeable flow zone of the Site's
hydrogeologic system, where groundwater flow occurs predominantly along fractures, joints,
and faults. Groundwater is usually encountered in the surficial flow zone; however, as the
hydrogeologic units above the bedrock thin to the west and northwest, groundwater is
encountered only within the deeper hydrogeologic unit(s).
Overall, groundwater flow direction at the CCR Landfill is to the west and northwest toward
several unnamed streams and a wetland area, which converge into Powell Creek (Figure 3A and
Figure 313). The wetland area and streams act as groundwater discharge zones downgradient of
the CCR Landfill. Those surface waters are classified as Class C under the North Carolina
Administrative Code (NCAC), Title 15A, Subchapter 02B, Surface Water and Wetland Standards
(02B standards). Flow from those surface water features eventually reaches the French Broad
River to the west.
1.3 CCR Landfill Semiannual Monitoring Program
The Water Quality Monitoring Plan Revision 3 — CCR Landfill (WQMP Revision 3; SynTerra, 2023)
was submitted in September 2023 and approved on October 12, 2023 (NCDEQ DWM, personal
communication, October 12, 2023).
The CCR Landfill semiannual monitoring program, described in detail in the WQMP Revision 3
and summarized in Table 1, consists of:
• Nine groundwater monitoring locations
• Four monitoring wells used for measuring water levels only
• Three surface water monitoring locations
• One engineered drain outlet (seep) monitoring location
• One leachate monitoring location
The monitoring locations are shown on Figure 2, and a summary of monitoring well
construction information is presented in Table 2. Field parameters and the constituents
analyzed for the CCR Landfill semiannual monitoring program are summarized in Table 3A for
groundwater, Table 313 for surface water, and Table 3C for leachate.
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
2.0 METHODS
2.1 Sampling and Analysis Methods
On September 23, 2025, Duke Energy personnel (Duke Energy North Carolina Field Certification
#5193) conducted groundwater, surface water, and leachate sampling in accordance with the
North Carolina Solid Waste Management Guidelines. Samples could not be collected from seep
location ASV-DP-4 or surface water location ASV-LF-SW-1 because those locations were dry at
the time of sampling. Copies of the field sampling forms are included in Appendix A. Duke
Energy Analytical Laboratory (North Carolina Laboratory Certification #248) analyzed the
reported parameters and constituents. The laboratory report and chain -of -custody forms are
included in Appendix B.
Duke Energy developed a list of parameters and constituents using guidance from the NCDEQ
DWM Solid Waste Section (SWS). The samples were analyzed using the updated parameter and
constituent list, approved by NCDEQ on March 20, 2023. In addition, dissolved selenium was
added to the constituent list when the WQMP Revision 3 was submitted in September 2023
(SynTerra, 2023) and approved by the NCDEQ in October 2023 (NCDEQ DWM, personal
communication, October 12, 2023). The monitoring parameters and constituents; U.S.
Environmental Protection Agency (USEPA) SW-846 analytical methods; NCAC, Title 15A,
Subchapter 02L, Groundwater Classification and Standards (02L standards); and 02B standards
for Class C waters are presented in Table 3A through Table 3C.
In addition to 02B standards, Duke Energy provides comparisons against in -stream target values
(ISTVs) and USEPA National Recommended Water Quality Criteria (NRWQC), with the
qualification that a concentration greater than the published value is not necessarily a violation
of the water quality standard for toxicity. As stated by the USEPA, NRWQC standards do not
constitute regulations or impose a legally binding requirement. Therefore, comparisons with
those criteria are for screening purposes only.
Additional information regarding surface water standards and screening criteria are outlined
below:
• Several 02B standards and ISTVs require sampling methods specific to acute or chronic
concentrations and are not applicable to the grab sample method; however, acute
standards are considered more applicable to grab sampling and are included for
screening purposes only.
• Hardness -dependent standards are based on acute and/or chronic sampling methods
and are not applicable to the grab sample method. Duke Energy uses a standard
hardness of 25 milligrams per liter (mg/L) to calculate hardness -dependent standards
for screening purposes. However, if in -stream hardness values are less than 25 mg/L,
actual in -stream hardness values would be used to calculate hardness -dependent
standards for screening purposes because those standards would be more stringent
than screening standards based on 25 mg/L hardness. If constituent concentrations are
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
greater than hardness -dependent standards based on 25 mg/L hardness but the actual
in -stream hardness values are greater than 25 mg/L, actual in -stream hardness values
would be used to calculate hardness -dependent standards for screening purposes
because those standards would be less stringent than screening standards based on 25
mg/L hardness.
The 02B surface water standards for chromium are based on speciation for dissolved
trivalent and hexavalent chromium. Surface water samples are analyzed for total
chromium and dissolved total chromium. Results will be screened against the dissolved
trivalent 02B standard; this standard is also a hardness -dependent, acute standard and
will be based on 25 mg/L hardness and used for screening purposes only.
• The 02B surface water standard for mercury represents a total concentration and is not
for acute, chronic, or hardness -dependent concentrations. The mercury 02B standard
for Class B, C, and water supply waters is 0.012 micrograms per liter (µg/L). Duke Energy
uses the analytical method USEPA 245.1/SW 7470A for mercury analysis, which has a
reporting limit of 0.050 µg/L and is greater than the 02B criteria of 0.012 jig/L.
2.2 Regulatory Criteria
Semiannual monitoring analytical results are compared to the following regulatory criteria:
Groundwater
• 02L standards
Surface Water/Seep
• 02B standards
Leachate
• Not compared to water quality standards
2.3 Statement of Work
The following tasks were completed for semiannual water quality monitoring:
• Collected groundwater, surface water, and leachate samples on September 23, 2025
(Duke Energy personnel)
• Compared groundwater analytical results to 02L standards and historical concentration
ranges
• Compared surface water analytical results to 02B standards and historical concentration
ranges
• Developed groundwater elevation contours using groundwater elevation data collected
during the September 2025 groundwater monitoring event
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
• Calculated groundwater flow velocities based on groundwater elevations at wells
located on the flow path of groundwater flow
• Converted the laboratory -provided electronic data deliverable (EDD) to the format
requirements of the NCDEQ DWM EDD template and submitted copies of the EDDs to
the NCDEQ DWM with this report
• Prepared and submitted this report
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
3.1 Site Groundwater Flow
Groundwater flow in the aquifer beneath the CCR Landfill footprint is to the west and
northwest toward an unnamed stream and to the northwest toward a wetland area and several
unnamed streams, which converge into Powell Creek.
Groundwater elevation contours and groundwater flow direction arrows in the vicinity of the
CCR Landfill are shown on Figure 3A (surficial and transition flow zones) and Figure 3B (bedrock
flow zone). Those contours were developed by calculating groundwater elevations in each
monitoring well using the depth -to -water measurements collected during the September 2025
monitoring event. In addition, monitoring wells from other regulatory programs were
incorporated into the CCR Landfill monitoring network to be used as water -level -only wells.
Additional wells used as water -level -only wells are included in the WQMP (WQMP Revision 3;
SynTerra, 2023).
Depth -to -water measurements and calculated groundwater elevations are presented in
Table 4. Calculated groundwater flow velocities are presented in Table 5. Calculated
groundwater elevations based on depth -to -water measurements gauged during the September
2025 monitoring event indicate groundwater at the CCR Landfill flows to the west and
northwest, consistent with historical Site observations.
3.2 Historical Range Data
Newly Installed CCR Landfill Groundwater Monitoring Wells
The WQMP Revision 3 included collecting four groundwater samples from each newly installed
CCR Landfill monitoring well prior to the CCR Landfill becoming operational (baseline samples)
(SynTerra, 2023). The four baseline monitoring events occurred from September 2020 to
January 2021, with samples collected from each well approximately once every 30 days.
Baseline monitoring included measuring groundwater field parameters, gauging the depth to
water in the wells, and analyzing the collected groundwater samples for the list of parameters
and constituents outlined in the WQMP Revision 3 (same parameter and constituent list
sampled and analyzed for in the CCR Landfill semiannual monitoring program) (SynTerra, 2023).
The results of the four baseline sampling events were submitted in the Groundwater
Monitoring Report Baseline Sampling Events #1 Through #4 — CCR Landfill (SynTerra, 2021).
Historical ranges of constituent concentrations were calculated for each newly installed
monitoring well using the analytical results from the four baseline monitoring events.
Existing Wells Incorporated into the CCR Landfill Monitoring Program
Monitoring wells ASV-CB-9, ASV-CB-9SL, and ASV-CB-9BR existed at the Site prior to CCR Landfill
development but were incorporated into the CCR Landfill monitoring program (WQMP Revision
3; SynTerra, 2023). Those three wells were not sampled during the baseline sampling events at
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
the newly installed wells. Rather, data from those wells, collected as part of other regulatory
sampling programs before CCR Landfill operations, were used to satisfy the initial baseline
sampling requirements. Historical concentration ranges for existing wells were established
using available data collected prior to initiation of CCR Landfill operations (November 2012 to
January 2021).
3.3 Analytical Results
Groundwater, surface water, and leachate field parameters are presented in Table 4. The
analytical results and reference comparisons discussed below are summarized in Table 6
through Table 9. Sample locations are depicted on Figure 2.
Groundwater Results
Field and analytical results for downgradient and background groundwater samples are
presented in Table 6. Groundwater analytical results are compared with 02L standards.
Constituents in downgradient monitoring wells with concentrations equal to or greater than the
02L standards are noted in Table 6 in gray and bold font. The laboratory analytical reports are
included as Appendix B.
A summary of the downgradient groundwater field and analytical results that are equal to or
greater than applicable comparison criteria (or outside the range for pH) is presented in
Table 7.
Groundwater concentrations equal to or greater than 02L standards (or greater than or less
than the range for pH) are less than or within historical background ranges and are attributable
to natural variation, except for sulfate and TDS at ASV-LMW-3B, which are greater than
historical background concentrations (Table 7). An alternate source demonstration (ASD) report
was completed for concentrations at ASV-LMW-3B in accordance with Title 40 Code of Federal
Regulations (40 CFR) § 257.94(e)(2). The ASD report concluded that sulfate and TDS (and
calcium as an Appendix III parameter) concentrations at ASV-LMW-3B are attributed to the
mineral solubilization of gypsum (or another sulfate -bearing mineral) present in the fill material
used to construct the MSE berm at the CCR Landfill (SynTerra, 2025). The concentration of pH in
ASV-LMW-2T was less than the NCAC 02L standard range; however, since it is greater than the
lower limit of the historical concentration range (Table 7) and less than the upper limit of the
NCAC 02L standard range, the pH in ASV-LMW-2T is attributed to natural variation.
Surface Water/Seep Results
Field and analytical results for surface water samples are presented in Table 8; those sample
locations are shown on Figure 2. Surface water samples are compared to applicable 02B
standards, ISTVs, and USEPA NRWQC for Aquatic Life and Human Health.
January 2026
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
Bold and gray highlighted concentrations in Table 8 are equal to or greater than 02B standards
(or greater than or less than the range for pH). Concentrations greater than ISTVs or USEPA
NRWQC are bold only.
Analytical results for surface water are compared with applicable 02B Class C surface water
standards. Seep location ASV-DP-4 and surface water location ASV-LF-SW-1 were not sampled
during the September 2025 sampling event because of dry conditions. Constituent
concentrations in surface water samples collected during the September 2025 sampling event
are less than applicable 02B standards for Class C surface water, except for the pH value at ASV-
LF-SW-2, which is outside the comparison criteria range for pH (Table 9). Manganese at ASV-LF-
SW-2 is at a concentration greater than the USEPA criterion for surface water; however, that
comparison criterion does not constitute regulations or impose a legally binding requirement
and is included for information purposes only (Table 8).
Leachate Results
A leachate sample (ASV-LCS-1) was collected from the leachate collection discharge pipe on the
west side of the CCR Landfill. Analytical results are presented in Table 10. Leachate analytical
results are not compared to groundwater (02L standards) or surface water (02B standards)
quality standards and are provided for information purposes only.
3.4 Quality Assurance/Quality Control
Field -performed quality assurance (QA) and quality control (QC) consisted of the collection and
analysis of two field blanks (one on each day of sampling) to evaluate whether possible effects
were imparted to the samples by the sample container, preservative, or other exogenous
sources. A field duplicate sample was also collected to estimate sampling and laboratory
precision. The data were validated and deemed usable.
As normal laboratory practice, select samples were diluted to within the calibrated range of the
analysis. Specifics regarding the samples that were diluted, including the dilution amount, are
documented in the lab report. Additional QA/QC data, laboratory analyses, and chain -of -
custody forms are included in Appendix B.
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Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
Kl�C4:I14:4:1IL1 V
Geosyntec. (2021). Operations Plan, Asheville Steam Electric Plant — CCR Landfill (1119-INDUS)
Rev. 2, February 19, 2021.
SynTerra. (2021). Groundwater Monitoring Report Baseline Sampling Events #1 Through #4 —
CCR Landfill, Asheville Steam Electric Plant. April 2021.
SynTerra. (2023). Water Quality Monitoring Plan Revision 3 — CCR Landfill, Asheville Steam
Electric Plant. September 2023.
SynTerra. (2025). Alternative Source Demonstration — CCR Landfill, Asheville Steam Electric
Plant. November 2025.
January 2026
Page 4-1
Project: 00.0069.38.03.02

Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
FIGURES
41P
synTerra
Science & Engineering Consultants

TK
�j
CCR LANDFILL ••A7
I(PERMIT NO. 1119-INDUS-2020)
z
43� ,55
•
FORMER COAL-FIRED ■
POWER PLANT
$ so
L
FORMER 1964 ASH BASIN
WASTE BOUNDARY
-_JFORMER 1982 ASH BASIN
WASTE BOUNDARY
GROUNDWATER FLOW j DUKE ENERGY PROGRESS�
DIRECTION e, •PROPERTY BOUNDARY
ASHEVILLE COMBINED
CYCLE STATION
lit
7.'
NOTES:
1. CCR - COAL COMBUSTION RESIDUALS
2. BOUNDARIES ARE APPROXIMATE.
3. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
le
4. UNITED STATES GEOLOGICAL SURVEY (USGS) TOPOGRAPHIC
MAP OBTAINED FROM ESRI ONLINE, LAST UPDATED FEBRUARY 2025.
DUKE
FIGURE 1
SITE LOCATION
SEMIANNUAL WATER QUALITY MONITORING REPORT
ENERGY
BUNCOMBE
CCR LANDFILL NO. 1119-INDUS-2020)
COUNTY WINSTON.SALEM
(PERMIT
PROGRESS
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE
ASHEVILLE STEAM ELECTRIC PLANT
ARDEN, NORTH CAROLINA
"CHARLOTTE
DRAWN BY: C. NORRIS DATE: 06/18/2025
GRA
GRAPHIC SCALE
REVISED BY., L. FOREMAN DATE: 12/23/2025
CHECKED BY.C. BARKER DATE: 12/23/2025
(IN FEET)
synTerra
APPROVED Br.S. SPINNER DATE: 12/23/2025
www.s7n --I
terracorp.com
--- ------ --- --------
PROJECT MANAGER: S. SPINNER

i tip. 1�1- ._ '� „r ; T , �,
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w•
FWEST STOI
POND
40
44,
rY e''�,' i�.' ,-.F:' -.�._ ,...AY.µ'. � - '♦�
':� ASV-LMW-2T .' � ♦.♦
�� ♦I `�� } � ASV-LMW-2B - '. .. � ';t"' � !'�
n- 'o.0
00
3V-LF-SW-1
r
ASV -LC:
16
_ .l r ti
r • _r :.
LEACHATE
COLLECTION
TANK
w
0
13D
1w
LANDFILL
LIMIT OF %
m
FEASTSTORMWA'OND
LEGEND N
SURFACE WATER SAMPLE LOCATION
LEACHATE SAMPLE LOCATION
O ENGINEERED DRAIN OUTLET (SEEP)
DETECTION MONITORING WELL
BACKGROUND MONITORING WELL
MONITORING WELL USED FOR WATER LEVEL ONLY
LANDFILL LIMIT OF WASTE
LANDFILL REVIEW BOUNDARY
— - — LANDFILL COMPLIANCE BOUNDARY
— — — LEACHATE FORCE MAIN
• DUKE ENERGY PROPERTY BOUNDARY
STREAM (TWT)
0 WETLANDS (TWT)
NOTES:
1. SURFACE WATER, OTHER SAMPLE LOCATIONS, AND BOUNDARIESARE
APPROXIMATE.
2. CCR - COAL COMBUSTION RESIDUALS
3. THE DEPICTED STREAMS AND WETLANDS DATA WERE APPROVED BY THE U.S.
ARMY CORPS OF ENGINEERS (USACE) ON MAY 19, 2016 - JURISDICTIONAL
DETERMINATION SAW 2014-00189. TAYLOR WISEMAN AND TAYLOR (TWT)
PERFORMED THE SURVEY OF THE FEATURES.
4. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
'I
5. AERIAL IMAGERY IS FROM DUKE ENERGY PROPELLER AERIAL PHOTOGRAPHY
CAPTURED ON SEPTEMBER 22, 2025.
6. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE
PLANE COORDINATE SYSTEM FIPS 3200 (NAD83).
LANDFILL REVIEW BOUNDARY
(APPROXIMATELY 125'
FROM LIMIT OF WASTE)
CB-9SL ASV-CB-9
ASV-CB-9BIR
,I -- �•
LANDFILL COMPLIANCE BOUNDARY
* (APPROXIMATELY 250
FROM LIMIT OF WASTE) µ
DUKE GRAPHIC SCALE
75 0 75 150 FIGURE 2
ENERGY MONITORING LOCATIONS
lt�(IN FEET) SEMIANNUAL WATER QUALITY MONITORING REPORT
PROGRESS DRAWN BY:C.NORRIS DATE:06/18/2025 CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
147 REVISED BY: L. FOREMAN DATE: 12/23/2025
CHECKED BY: C. BARKER DATE: 12/23/2025 SEPTEMBER 2025 SAMPLING EVENT
APPROVED BY:S. SPINNER DATE: 12/23/2025 ASHEVILLE STEAM ELECTRIC PLANT
S1/YlTerrd PROJECT MANAGER: S SPINNER DATE: 12/23/2025
ARDEN, NORTH CAROLINA

.n rL ,—"!
WEST STORMWATER
POND
* - N
• FF. .
`. .�4!ar�r� Y.I�� '}` �2°SL4.rtitir�C. � � { ��� -,"• - -' ►
yIFti _ .-vim:,, y-' Y+ •�• sLAKE JULIAN
WE. 2159±
ASV-LMW-2T`•
2059.24 ,a
,♦%♦
♦%
LANDFILL LIMIT OF
'.
0
'
oo�v
ry�
ASV-CB-877
2092.97 -
12
LEGEND
SURFACE WATER SAMPLE LOCATION
yA LEACHATE SAMPLE LOCATION
ASV-LMW-1S
`* ENGINEERED DRAIN OUTLET (SEEP)
2148.26 ziso ' DETECTION MONITORING WELL
EAST STORMWATER BACKGROUND MONITORING WELL
POND MONITORING WELL USED FOR WATER LEVEL ONLY
GROUNDWATER FLOW DIRECTION
INFERRED GROUNDWATER ELEVATION CONTOUR (20' INTERVAL)
LANDFILL LIMIT OF WASTE
LANDFILL REVIEW BOUNDARY
z160 • LANDFILL COMPLIANCE BOUNDARY
1 LEACHATE FORCE MAIN
1 LANDFILL REVIEW BOUNDARY DUKE ENERGY PROPERTY BOUNDARY
1
1 (APPROXIMATELY 125' > STREAM (TWT)
FROM LIMIT OF WASTE) WETLANDS (TWT)
TOPOGRAPHIC CONTOUR (10' INTERVAL)
NOTES:
1. SURFACE WATER, OTHER SAMPLE LOCATIONS, AND BOUNDARIES ARE APPROXIMATE.
ASV-CB-9SL ASV-CB-9* 2. CCR - COAL COMBUSTION RESIDUALS
2145.44 2138.64
' 3. THE DEPICTED STREAMS AND WETLANDS DATA WERE APPROVED BY THE U.S. ARMY
CORPS OF ENGINEERS (USACE) ON MAY 19, 2016 - JURISDICTIONAL DETERMINATION SAW
2014-00189. TAYLOR WISEMAN AND TAYLOR (TWT) PERFORMED THE SURVEY OF THE
/ FEATURES.
4. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
2186 y 5. AERIAL IMAGERY IS FROM DUKE ENERGY PROPELLERAERIAL PHOTOGRAPHY CAPTURED
*.- ON SEPTEMBER 22, 2025.
r
��.. 6. DRAWING HAS BEEN SET WITH PROJECTION OF NORTH CAROLINA STATE PLANE
� COORDINATE SYSTEM FIPS 3200 (NAD83).
z170 ll , y
'41 I 7. W.E. - WATER ELEVATION (APPROXIMATE)
• p LANDFILL COMPLIANCE 8. GROUNDWATER ELEVATIONS BASED ON WATER LEVELS COLLECTED SEPTEMBER 23,
2025.
BOUNDARY
(APPROXIMATELY250'(9.
NAVD88)lONSARE REFERENCED TOTHE NORTH AMERICANVERTICAL DATUM 88
FROM LIMIT OF WASTE) 10. GROUNDWATER ELEVATION IN ASV-CB-9 WAS ANOMALOUSLY LOW DURING THE
"' —= GROUNDWATER SAMPLING ^ _ GROUNDWATER LEVEL CONTOURS.
WAS THEREFORE NOT USED TO DRAW THE
DUKE
ltn(IN
ENERGY
GRAPHIC SCALE
75 0 75 150
FEET)
FIGURE3A
GROUNDWATER ELEVATION CONTOURS
SURFICIAL AND TRANSITION FLOW ZONES
PROGRESS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DRAWN BY: C. NORRIS DATE: 06/18/2025
REVISED BY,,L.FOREMAN DATE: 12/23/2025
CHECKED BY: C. BARKER DATE: 12/23/2025
APPROVED BY:$. SPINNER DATE: 12/23/2025
PROJECT MANAGER: S. SPINNER
synTerra
ARDEN, NORTH CAROLINA
www.synterracorp.com
GAO ARCGIS PRO PROJECTS\Duke_ EnergyVAsheville\2025\Semiannual_Water _Quality_Monitoring_Report_ September _2025\WQMR_Sept2025.aprx

`r•y 4; 'SIle
•, }r t -kf i5%x4''
f
en
-
-,r'
-��'�.
WEST STORMWATER •�
POND
JLEACHATE
STORAGE TANK
I&
12
BB-8BR
7 I
1'.
444
4.
ASV-LMW-2B
2058.16
i
70.80 FWAWAIIII61
-.
0
ASV-LMW-1B
LEGEND
2149.17
■ SURFACE WATER SAMPLE LOCATION
LANDFILL LIMIT OF WASTE
A LEACHATE SAMPLE LOCATION
0 ENGINEERED DRAIN OUTLET (SEEP)
` EAST STORMWATER
ie DETECTION MONITORING WELL
POND
BACKGROUND MONITORING WELL
MONITORING WELL USED FOR WATER LEVEL ONLY
0 GROUNDWATER FLOW DIRECTION
LANDFILL REVIEW BOUNDARY
— INFERRED GROUNDWATER ELEVATION CONTOUR (20' INTERVAL)
CCR LANDFILL
_ o
(APPROXIMATELY 125'
LANDFILL LIMIT OF WASTE
(PERMIT NO. 1119-INDUS-2020)
FROM LIMIT OF WASTE)
LANDFILL REVIEW BOUNDARY
LANDFILL COMPLIANCE BOUNDARY
4
ry1oo
— — — - LEACHATE FORCE MAIN
DUKE ENERGY PROPERTY BOUNDARY
-3111— STREAM (TWT)
1
WETLANDS (TWT)
k h'
TOPOGRAPHIC CONTOUR (10' INTERVAL)
NOTES:
'
ASV-CB-9BR
IT�O
2131.80
1. SURFACE WATER, OTHER SAMPLE LOCATIONS, AND BOUNDARIES ARE APPROXIMATE.
2. CCR -COAL COMBUSTION RESIDUALS
3. THE DEPICTED STREAMS AND WETLANDS DATA WERE APPROVED BY THE U.S. ARMY
CORPS OF ENGINEERS (USACE) ON MAY 19, 2016 -JURISDICTIONAL DETERMINATION SAW
I
2014-00189. TAYLOR WISEMAN AND TAYLOR (TWT) PERFORMED THE SURVEY OF THE
'So 0
FEATURES.
2140 ry�ry ASV-MW-13BR
4. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
2124.97
5. AERIAL IMAGERY IS FROM DUKE ENERGY PROPELLER AERIAL PHOTOGRAPHY CAPTURED
`'r
217p J 4
ON SEPTEMBER 22, 2025.
r
6. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE
r LANDFILL COMPLIANCE
COORDINATE SYSTEM RIPS 3200 (NAD83).
_
7. W.E. -WATER ELEVATION (APPROXIMATE)
BOUNDARY
(APPROXIMATELY 250'
8. GROUNDWATER ELEVATIONS BASED ON WATER LEVELS COLLECTED SEPTEMBER 23,
FROM LIMIT OF WASTE)
9, ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88
Y l '(IN FEET) GRAPHIC SCALE
DUKE 75 {F�' � 0 75 150 FIGURE3B
ENERGY GROUNDWATER ELEVATION CONTOURS
BEDROCK FLOW ZONE
PROGRESS DRAWN BY: C. NORRIS DATE: 06/18/2025 SEMIANNUAL WATER QUALITY MONITORING REPORT
REVISED BY: L. FOREMAN DATE: 12/23/2025 CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
CHECKED BY: C. BARKER DATE: 12/23/2025
APPROVED BY:$. SPINNER DATE: 12/23/2025 SEPTEMBER 2025 SAMPLING EVENT
PROJECT MANAGER: S. SPINNER ASHEVILLE STEAM ELECTRIC PLANT
4 syn errs www.synterracorp.com ARDEN, NORTH CAROLINA
G:\0 ARCGIS PRO PROJECTS\Duke_Energy\Asheville\2025\Semiannual_Water_Quality _Monitoring_Report_ September _2025\WQMR_Sept2025.aprx

Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
TABLES
41P
synTerra
Science & Engineering Consultants

TABLE 1
MULTIMEDIA SAMPLE LOCATIONS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Sample ID
Media
Description
Upgradient background monitoring well located southeast of the landfill. Screened
ASV-CB-9
in the surficial flow zone.
Upgradient background monitoring well located southeast of the landfill. Screened
ASV-CB-9BR
in the bedrock flow zone.
Upgradient background monitoring well located southeast of the landfill. Screened
ASV-CB-95L
in the surficial flow zone.
Upgradient background monitoring well located northeast of the landfill. Screened
ASV-LMW-1B
in the bedrock flow zone.
Upgradient background monitoring well located northeast of the landfill. Screened
ASV-LMW-1S
in the surficial flow zone.
Downgradient monitoring well located on the north side of the landfill. Screened in
ASV-LMW-26
Groundwater
the bedrock flow zone.
ASV-LMW-2T
Downgradient monitoring well located on the north side of the landfill. Screened in
the transition flow zone.
Downgradient monitoring well located on the northwest side of the landfill.
ASV-LMW-36
Screened in the bedrock flow zone.
Downgradient monitoring well located on the northwest side of the landfill.
ASV-LMW-46
Screened in the bedrock flow zone.
Side -gradient water -level -only well located southwest of the landfill. Screened in
ASV-CB-8
the transition flow zone and used to refine groundwater flow direction.
Side -gradient water -level -only well located southwest of the landfill. Screened in
ASV-CB-86R
the bedrock flow zone and used to refine groundwater flow direction.
Side -gradient water -level -only well located south of the landfill. Screened in the
ASV-M W-13 BR
bedrock flow zone and used to refine groundwater flow direction.
Side -gradient water -level -only well located south of the landfill. Screened in the
ASV-MW-13D
transition flow zone and used to refine groundwater flow direction.
Surface water sample location to the west and side -gradient of the landfill. Sampled
ASV-LF-SW-1
Surface Water
if flow is present.
ASV-LF-SW-2
Surface water sample location to the northwest and downgradient of the landfill.
Sampled if flow is present.
Surface water sample location to the north and downgradient of the landfill.
ASV-LF-SW-3
Sampled if flow is present.
Engineered
Drainpipe for groundwater seepage from the northwest portion of the landfill's
ASV-DP-4
Drain Outlet
mechanically stabilized earth (MSE) berm (sampled if flow is present during
(Seep)
semiannual monitoring).
Represents leachate from the single cell landfill, collected from an in -line sampling
ASV-LCS-1
Leachate
point along the force main conveying leachate from the landfill to the leachate
storage tank.
Notes:
CCR - coal combustion residuals
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 2
SUMMARY OF WELL CONSTRUCTION INFORMATION
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Well ID
Date
Installed
Outer
Casing
Diameter
(inches)
Outer
Casing
Depth
(feet BGS)
Well Locations
Well Elevations
Total Depth Drilled
Top of Bedrock
Screened Interval
Groundwater Levels
Northing
Easting
Ground
Surface
Measuring
Point
TOC
Depth
(feet BGS)
Elevation
(feet NAVD 88)
Depth
(feet BGS)
Elevation
(feet NAVD 88)
Depth
p
(feet BGS)
Elevation
(feet NAVD 88)
Lithology of
Screened
Interval
Depth
to Water
(feet BGS)
Depth
to Water
(feet BTOC)
Groundwater
Elevation
(feet NAVD 88)
feet NAD 83
feet NAVD 88
from
to
from
to
ASV-CB-8*
08/17/2010
2
47
645101.56
943051.28
2142.49
2145.19
57
2085.49
40
2102.49
47
57
2095.49
2085.49
Transition Zone
49.52
52.22
2092.97
ASV-CB-8BR*
04/23/2015
2
85
645127.30
943045.09
2139.92
2139.92
106
2033.92
42
2097.92
85
95
2054.92
2044.92
Bedrock
51.45
51.45
2088.47
ASV-CB-9
10/08/2012
2
52
645590.50
944231.20
2178.86
2182.08
62
2116.86
NA
NA
52
62
2126.86
2116.86
Saprolite/Surficial
40.22
43.44
2138.64
ASV-CB-9BR
04/21/2015
2
83
645585.70
944225.40
2178.15
2181.11
125
2053.15
75
2103.15
83
93
2095.15
2085.15
Bedrock
46.35
49.31
2131.80
ASV-CB-9SL
04/14/2015
2
74
645595.30
944227.60
2178.17
2181.42
125
2053.17
NA
NA
69
74
2109.17
2104.17
Saprolite/Surficial
32.73
35.98
2145.44
ASV-LMW-1B
09/11/2020
2
NA
646017.65
944181.68
2169.53
2171.62
102.2
2067.33
80
2089.53
91
101
2078.53
2068.53
Bedrock
20.36
22.45
2149.17
ASV-LMW-1S
08/31/2020
2
54.9
646003.02
944185.77
2169.58
2172.03
80.5
2089.08
NA
NA
55
65
2114.68
2104.68
Saprolite/Surficial
22.90
25.35
2146.68
ASV-LMW-2B
09/11/2020
2
95.5
646348.14
943542.08
2120.84
2122.89
110.5
2010.34
85
2035.84
100
110
2020.84
2010.84
Bedrock
62.68
64.73
2058.16
ASV-LMW-2T
09/11/2020
2
NA
646367.68
943550.13
2123.20
2123.99
85
2038.20
NA
NA
76
86
2047.20
2037.20
Transition Zone
63.96
64.75
2059.24
ASV-LMW-3B
09/11/2020
2
NA
646139.69
943400.86
2102.80
2104.46
43.3
2059.50
5
2097.80
33
43
2069.80
2059.80
Bedrock
32.00
33.66
2070.80
ASV-LMW-4B
09/11/2020
2
NA
645954.73
943095.65
2102.57
2103.59
49
2053.57
24
2078.57
39
49
2063.57
2053.57
Bedrock
21.98
23.00
2080.59
ASV-MW-13BR*
02/16/2015
2
47
645439.85
943740.80
2151.48
2154.28
57
2094.48
42
2109.48
47
57
2104.48
2094.48
Bedrock
26.50
29.31
2124.97
ASV-MW-13D*
01/30/2015
2
37
645440.32
943735.67
2151.23
2153.97
57
2094.23
42
2109.23
37
42
2114.23
2109.23
Transition Zone
26.48
29.23
2124.74
Notes:
* - Monitoring well used for water level only.
Elevations are referenced to the North American Vertical Datum of 1988 (NAVD 88).
Groundwater elevations are based on water levels collected on September 23, 2025.
Horizontal datum are referenced to the North American Datum of 1983 (NAD 83) (FIPS 3200).
BGS - below ground surface
BTOC - below top of casing
CCR - coal combustion residuals
NA - not applicable
TOC - top of casing
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 3A
SUMMARY OF GROUNDWATER CONSTITUENTS AND ANALYTICAL METHODS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent
Units
Analytical Methods
15A NCAC 02L
Standards for
Groundwater
In Situ Parameters
pH
S.U.
Multi -Parameter Water Quality Meter
6.5-8.5
Specific Conductance
µmhos/cm
Multi -Parameter Water Quality Meter
NE
Temperature
degrees Celsius
Multi -Parameter Water Quality Meter
NE
Dissolved Oxygen
mg/L
Multi -Parameter Water Quality Meter
NE
Oxidation -Reduction Potential
mV
Multi -Parameter Water Quality Meter
NE
Turbidity
NTU
Turbidimeter
NE
Water Level
feet
Water Level Meter
NE
Laboratory Analyses
Antimony
µg/L
EPA 200.8 / SW 6020B
1
Arsenic
µg/L
EPA 200.8 / SW 6020B
10
Barium
µg/L
EPA 200.7 / SW 6010D
700
Beryllium
µg/L
EPA 200.8 / SW 6020B
4
Boron
µg/L
EPA 200.7 / SW 6010D
700
Cadmium
µg/L
EPA 200.8 / SW 6020B
2
Calcium
mg/L
EPA 200.7 / SW 6010D
NE
Chloride
mg/L
EPA 300.0 / EPA 9056A
250
Chromium
µg/L
EPA 200.8 / SW 6020B
10
Cobalt
µg/L
EPA 200.8 / SW 6020B
1
Copper
µg/L
EPA 200.8 / SW 6020B
1,000
Fluoride
mg/L
EPA 300.0 / EPA 9056A
2
Iron
µg/L
EPA 200.7 / SW 6010D
300
Lead
µg/L
EPA 200.8 / SW 6020B
15
Lithium
µg/L
EPA 200.7 / SW 6010D
NE
Magnesium
mg/L
EPA 200.7 / SW 6010D
NE
Manganese
µg/L
EPA 200.7 / SW 6010D
50
Mercury
µg/L
EPA 245.1 / SW 7470A
1
Molybdenum
µg/L
EPA 200.8 / SW 6020B
NE
Nickel
µg/L
EPA 200.8 / SW 6020B
100
Nitrate (as N)
mg-N/L
EPA 300.0 / EPA 9056A
10
Selenium
µg/L
EPA 200.8 / SW 6020B
20
Silver
µg/L
EPA 200.8 or SW 6020A
20
Sulfate
mg/L
EPA 300.0 / EPA 9056A
250
Thallium
µg/L
EPA 200.8 / SW 6020B
2
Total Dissolved Solids
mg/L
SM 2540C / EPA 160.1 / ASTM D5907
500
Total Hardness
mg/L
Calculation [2.497 (calcium) + 4.118 (magnesium)]
NE
Vanadium
µg/L
EPA 200.8 / SW 6020B
7
Zinc
µg/L
EPA 200.7 / SW 6010D
1,000
Prepared by: CSB Checked by: HCC
Notes:
List of constituents was approved by the NCDEQ on March 20, 2023. In addition, dissolved selenium was included in the September 2023 Water Quality Monitoring Plan update approved by the NCDEQ
in October 2023.
15A NCAC 02L Standards for Groundwater - North Carolina Class GA Standards found in 15A NCAC 02L .0202 Groundwater Quality Standards (effective April 1, 2022).
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
ASTM -American Society for Testing and Materials
CCR - coal combustion residuals
EPA - U.S. Environmental Protection Agency
mg/L - milligrams per liter
mg-N/L - milligrams nitrogen per liter
my - millivolts
NCAC - North Carolina Administrative Code
NCDEQ- North Carolina Department of Environmental Quality
NE - not established
NTU - nephelometric turbidity units
S.U. - standard units
SM - standard method
SW - solid waste
Page 1 of 1

TABLE 3B
SUMMARY OF SURFACE WATER CONSTITUENTS AND ANALYTICAL METHODS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent
Units
Analytical Methods
15A NCAC 02B
(Class C) Standards,
ISTV, and USEPA
Criteria for
Surface Water
15A NCAC 02B
(Class C) Standards,
ISTV, and USEPA
Criteria for Dissolved
Surface Water
In Situ Parameters
pH
S.U.
Multi -Parameter Water Quality Meter
6.0-9.0
6.0-9.0
Temperature
degrees Celsius
Multi -Parameter Water Quality Meter
<_ 29
NE
Specific Conductance
µmhos/cm
Multi -Parameter Water Quality Meter
NE
<_ 29
Dissolved Oxygen
mg/L
Multi -Parameter Water Quality Meter
>_ 4
>_ 4
Oxidation -Reduction Potential
mV
Multi -Parameter Water Quality Meter
NE
NE
Turbidity
NTU
Turbidimeter
Streams <_ 50
Streams <_ 50
Laboratory Analyses
Antimony
µg/L
EPA 200.8 / SW 6020B
5,300$
NA
Arsenic
µg/L
EPA 200.8 / SW 6020B
10
NA
Barium
µg/L
EPA 200.7 / SW 6010D
21,000$
NA
Beryllium
µg/L
EPA 200.8 / SW 6020B
NE
65A
Boron
µg/L
EPA 200.7 / SW 6010D
34,000$
NA
Cadmium
µg/L
EPA 200.8 / SW 6020B
NE
0.75"t
Calcium
mg/L
EPA 200.7 / SW 6010D
NE
NA
Chloride
mg/L
EPA 300.0 / EPA 9056A
230
NA
Chromium
µg/L
EPA 200.8 / SW 6020B
NE
180A't
Cobalt
µg/L
EPA 200.8 / SW 6020B
4$
NA
Copper
µg/L
EPA 200.8 / SW 6020B
NE
3.6A't
Fluoride
mg/L
EPA 300.0 / EPA 9056A
1.8
NA
Iron
µg/L
EPA 200.7 / SW 6010D
1,000*
NA
Lead
µg/L
EPA 200.8 / SW 6020B
NE
14"t
Lithium
µg/L
EPA 200.7 / SW 6010D
NE
NA
Magnesium
mg/L
EPA 200.7 / SW 6010D
NE
NA
Manganese
µg/L
EPA 200.7 / SW 6010D
100*
NA
Mercury
µg/L
EPA 245.1 / SW 7470A
0.012
NA
Molybdenum
µg/L
EPA 200.8 / SW 6020B
2,000$
NA
Nickel
µg/L
EPA 200.8 / SW 6020B
NE
140^'t
Nitrate as N
mg-N/L
EPA 300.0 / EPA 9056A
NE
NE
Selenium
µg/L
EPA 200.8 / SW 6020B
NE
3.1&
Silver
µg/L
EPA 200.8 or SW 6020A
NE
0.30A't
Sulfate
mg/L
EPA 300.0 / EPA 9056A
NE
NA
Thallium
µg/L
EPA 200.8 / SW 6020B
2$
NA
Total Dissolved Solids
mg/L
SM 2540C / EPA 160.1 / ASTM D5907
NE
NA
Total Hardness
mg/L
Calculation (2.497 (calcium) + 4.118 (magnesium))
NE
NA
Vanadium
µg/L
EPA 200.8 / SW 6020B
NE
NA
Zinc
µg/L
EPA 200.7 / SW 6010D
NE
36A't
Prepared by: CSB Checked by: HCC
Notes:
List of constituents were approved by NCDEQ on March 20, 2023. In addition, dissolved selenium was included in the September 2023 Water Quality Monitoring Plan (WQMP) update approved by the
NCDEQ in October 2023.
15A NCAC 02B Standards for Class C surface waters. North Carolina surface water and wetland standards (effective September 1, 2022).
ISTV - In -stream target values established per 15A NCAC 02B .0202 and .0208.
For 15A NCAC 02B Standards and ISTVs with acute and chronic criteria, the acute criteria are considered more applicable to grab sampling; therefore, those values are presented.
$ - An exceedance of a published ISTV is not automatically a violation of the water quality standard for toxicity. Comparison value presented is the lesser of the Aquatic Life & Secondary Recreation or fish
consumption value, when applicable. ISTV is based on acute method. Compliance with acute instream standard is not applicable to sampling method described in 15A NCAC 02B (11)(e). An exceedance
of a published ISTV is not automatically a violation of the water quality standard for toxicity.
USEPA Criteria for Surface Water - U.S. Environmental Protection Agency (USEPA) National Recommended Water Quality Criteria do not constitute regulations, nor do they impose a legally binding
requirement. Therefore, comparisons with those criteria are for information purposes only.
Comparison criteria based on acute sampling method described in 15A NCAC 02B (11)(e). Compliance with acute instream standard is not applicable to sampling method and provided for screening
purposes only.
Hardness -dependent standard calculated using 25 mg/L hardness and not actual in -stream hardness value. Hardness -dependent standard for chromium III calculated using 2S mg/L hardness and not
actual in -stream hardness value. Provided for screening purposes only.
& - Selenium standard for lotic water based on a 30-dayaverage. Not applicable to the sampling method and provided for screening purposes only.
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
ASTM -American Society for Testing and Materials
CCR - coal combustion residuals
mg/L - milligrams per liter
mV - millivolts
mg-N/L - milligrams nitrogen per liter
NA - not applicable
NCAC - North Carolina Administrative Code
NCDEQ- North Carolina Department of Environmental Quality
NE - not established
NTU - nephelometric turbidity units
S.U. - standard units
SM - standard method
SW - solid waste
Page 1 of 1

TABLE 3C
SUMMARY OF LEACHATE CONSTITUENTS AND ANALYTICAL METHODS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent
Units
Analytical Methods
In Situ Parameters
pH
S.U.
Multi -Parameter Water Quality Meter
Temperature
degrees Celsius
Multi -Parameter Water Quality Meter
Specific Conductance
µmhos/cm
Multi -Parameter Water Quality Meter
Dissolved Oxygen
mg/L
Multi -Parameter Water Quality Meter
Oxidation -Reduction Potential
millivolts
Multi -Parameter Water Quality Meter
Turbidity
NTU
Turbidimeter
Laboratory Analyses
Antimony
µg/L
EPA 200.8 / SW 6020B
Arsenic
µg/L
EPA 200.8 / SW 6020B
Barium
µg/L
EPA 200.7 / SW 6010D
Beryllium
µg/L
EPA 200.8 / SW 6020B
Boron
µg/L
EPA 200.7 / SW 6010D
Cadmium
µg/L
EPA 200.8 / SW 6020B
Calcium
mg/L
EPA 200.7 / SW 6010D
Chloride
mg/L
EPA 300.0 / EPA 9056A
Chromium
µg/L
EPA 200.8 / SW 6020B
Cobalt
µg/L
EPA 200.8 / SW 6020B
Copper
µg/L
EPA 200.8 / SW 6020B
Fluoride
mg/L
EPA 300.0 / EPA 9056A
Iron
µg/L
EPA 200.7 / SW 6010D
Lead
µg/L
EPA 200.8 / SW 6020B
Lithium
µg/L
EPA 200.7 / SW 6010D
Magnesium
mg/L
EPA 200.7 / SW 6010D
Manganese
µg/L
EPA 200.7 / SW 6010D
Mercury
µg/L
EPA 245.1 / SW 7470A
Molybdenum
µg/L
EPA 200.8 / SW 6020B
Nickel
µg/L
EPA 200.8 / SW 6020B
Nitrate as N
mg-N/L
EPA 300.0 / EPA 9056A
Selenium
µg/L
EPA 200.8 / SW 6020B
Silver
µg/L
EPA 200.8 or SW 6020A
Sulfate
mg/L
EPA 300.0 / EPA 9056A
Thallium
µg/L
EPA 200.8 / SW 6020B
Total Dissolved Solids
mg/L
SM 2540C / EPA 160.1 / ASTM D5907
Total Hardness
mg/L
Calculation [2.497 (calcium) + 4.118 (magnesium)]
Vanadium
µg/L
EPA 200.8 / SW 6020B
Zinc
µg/L
EPA 200.7 / SW 6010D
Notes:
Leachate is analyzed for the same constituents as groundwater (Table 3A).
List of constituents was approved by the North Carolina Department of Environmental Quality (NCDEQ) on March 20, 2023.
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
ASTM -American Society for Testing and Materials
CCR - coal combustion residuals
EPA - U.S. Environmental Protection Agency
mg/L - milligrams per liter
mg-N/L - milligrams nitrogen per liter
NTU - nephelometric turbidity units
S.U. - standard units
SM - standard method
SW - solid waste
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 4
FIELD DATA PARAMETERS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Sample ID
Sample
Date
Appearance
Odor'
Purge
Method
Average
Pump Rate
(mL/min)
Temperature
(Deg C)
Specific
Conductance
(µmhos/cm)
pH
(S.U.)
ORP
(mV)
Dissolved
Oxygen
(mg/L)
Turbidity
(NTU)
Depth
to Water
(Feet BTOC)
Measuring
Point TOC
(Feet NAVD 88)
Groundwater
Elevation
(Feet NAVD 88)
Groundwater Parameters
ASV-CB-9
9/23/2025
Clear
None
Bladder
180
19
35
4.55
441
2.90
NM
43.44
2182.08
2138.64
ASV-CB-9BR
9/23/2025
Clear
None
Bladder
300
19
111
5.55
394
0.58
2.4
49.31
2181.11
2131.80
ASV-CB-9SL
9/23/2025
Clear
None
Bladder
100
21
61
5.27
404
3.88
2.6
35.98
2181.42
2145.44
ASV-LMW-1B
9/23/2025
Clear
None
Bladder
250
20
126
5.70
324
0.29
2.6
22.45
2171.62
2149.17
ASV-LMW-IS
9/23/2025
Clear
None
Bladder
300
19
71
5.29
382
1.20
7.9
25.35
2172.03
2146.68
ASV-LMW-2B
9/23/2025
Clear
None
Bladder
300
18
79
5.32
281
0.67
3.5
64.73
2122.89
2058.16
ASV-LMW-2T
9/23/2025
Clear
None
Bladder
180
18
62
5.82
382
0.84
9.8
64.75
2123.99
2059.24
ASV-LMW-3B
9/23/2025
Clear
None
Bladder
180
16
814
6.13
402
2.45
3.6
33.66
2104.46
2070.80
ASV-LMW-4B
9/23/2025
Clear
None
Bladder
350
18
245
6.44
163
0.35
4.5
23.00
2103.59
2080.59
Surface Water Parameters
ASV-LF-SW-1
Dry, not sampled.
ASV-LF-SW-2
9/23/2025
Clear
None
Grab
Stream flow
19
129
5.4
383
7.78
8.7
NA
NA
NA
ASV-LF-SW-3
9/23/2025
Clear
None
Grab
Stream flow
20
73
6.5
344
7.78
5.6
NA
NA
NA
Engineered Drain Outlet (Seep)
ASV-DP-4
Dry, not sampled.
Leachate Parameters
ASV-LCS-1
9/23/2025
Clear
None
Grab
500
21
1884
6.3
477
1.96
7.7
NA
NA
NA
Notes:
If odor was not noted on the Field Sampling Log, there was assumed to be no odor.
µmhos/cm - micromhos per centimeter
BTOC - below top of casing
CCR - coal combustion residuals
Deg C - degrees Celsius
mg/L - milligrams per liter
mL/min - milliliters per minute
mV - millivolts
NM - not measured
NA - not applicable
NAVD 88 - North American Vertical Datum of 1988
NTU - nephelometric turbidity units
ORP - oxidation-reduction potential
S.U. - standard units
TOC - top of casing
Prepared by: CSB Checked by: HCC
Page 1 of 1

TABLE 5
GROUNDWATER SEEPAGE VELOCITIES
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Surficial and Transition Flow Zone
Upgradient
Downgradient
Groundwater
Seepage
Groundwater
K
Oh
Distance
Effective
Well ID
Elevation
Elevation
(ft/day)l
(feet)
(feet)
PorosityZ
Velocity
(Feet NAVD
(ft/day)
(Feet NAVD 88)
88
ASV-LMW-1S to ASV-LMW-2T
2146.68
2059.24
0.33
1 87.44
733
0.2
0.197
Bedrock Flow Zone
Upgradient
Groundwater
Downgradient
Seepage
Well ID
Elevation
Groundwater
K
Oh
Distance
Effective
y
Velocit(ft/day)
(Feet NAVD
Elevation
(ft/day)l
(feet)
(feet)
PorosityZ
3
(Feet NAVD 88)
88)
ASV-LMW-1B to ASV-LMW-2B
2149.17
2058.16
1.96
91.01
720
0.001
247.8
ASV-CB-9BR to ASV-LMW-3B
2131.80
2070.80
1.96
61.00
993
1 0.001
120.4
Prepared by: CSB Checked by: HCC
Notes:
1- Hydraulic conductivity values taken from slug test performed on monitoring wells within each flow zone.
2 Effective porosity taken from the Updated Groundwater Flow and Transport Modeling Report for Asheville Steam Electric Plant, Arden, NC -
September 2022.
a - Value represents an estimate of the velocity of groundwater through bedrock fractures.
Groundwater elevations are based on water -level data collected on September 23, 2025.
Hydraulic gradients and groundwater velocities are approximate.
Monitoring wells are not listed where groundwater contour information is unavailable to calculate velocity.
Ah - difference in groundwater elevations between upgradient and downgradient locations
CCR - coal combustion residuals
ft/day - feet per day
K - horizontal hydraulic conductivity
NAVD 88 - North American Vertical Datum 1988
Page 1 of 1

TABLE 6
GROUNDWATER FIELD AND ANALYTICAL RESULTS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent
SWS ID
Units
Monitoring Wells
MDL
15A NCAC 02L
Standards for
Groundwater'
ASV-CB-9*
ASV-CB-9BR*
ASV-CB-9SL*
ASV-LMW-1B*
ASV-LMW-1ST
ASV-LMW-2B
ASV-LMW-2T
ASV-LMW-3B
ASV-LMW-4B
pH
320
S.U.
4.6
5.6
5.3
5.7
5.3
5.3
5.8
6.1
6.4
-
6.5-8.5
Temperature
325
Deg C
19
19
21
20
19
18
18
16
18
-
NE
Specific Conductance
323
µmhos/cm
35
111
61
126
71
79
62
814
245
-
NE
Dissolved Oxygen
-
mg/L
2.90
0.58
3.88
0.29
1.20
0.67
0.84
2.45
0.35
-
NE
Oxidation -Reduction Potential
336
mV
441
394
404
324
382
281
382
402
163
-
NE
Turbidity
330
NTU
NM
2.4
2.6
2.6
7.9
3.5
9.8
3.6
4.5
-
NE
Antimony
13
µg/L
<1
<1
<1
<1
<1
<1
<1
<1
<1
0.104
1
Arsenic
14
µg/L
<1
<1
<1
<1
<1
<1
<1
<1
0.207J
0.111
10
Barium
15
µg/L
28
24
41
27
39
41
26
54
70
2
700
Beryllium
23
µg/L
< 1
< 1
0.348 J
< 1
< 1
< 1
< 1
< 1
0.791 J
0.249
4
Boron
428
µg/L
6 J
< 50
< 50
9 J
15 J
191
27 J
6 J
24 J
5
700
Cadmium
34
µg/L
<1
<1
<1
<1
<1
<1
<1
<1
<1
0.032
2
Calcium
375
mg/L
0.449
10.4
3.93
9.1
5.77
5.15
3.4
124
34.6
0.012
NE
Chloride
301
mg/L
7
8.1
8.1
8.6
6.5
8.1
8.9
3.5
7
0.0154
250
Chromium
51
µg/L
0.315 J
< 1
0.709 J
0.374 J
0.641 J
0.544 J
< 1
0.349 J
< 1
0.185
10
Cobalt
53
µg/L
0.905 J
< 1
< 1
< 1
0.219 J
< 1
0.32 J
< 1
9.1
0.077
1
Copper
54
µg/L
1.03
< 1
0.3 J
< 1
0.214 J
0.228 J
0.461 J
0.811
0.388 J
0.787
1,000
Fluoride
312
mg/L
< 0.1
0.05 J
< 0.1
< 0.1
< 0.1
< 0.1
< 0.1
< 0.5
0.48
0.0479
2
Iron
340
µg/L
6 J
146
6 J
25
63
49
87
20
6,340
4
300
Lead
131
µg/L
< 1
< 1
< 1
< 1
< 1
< 1
0.071 J
< 1
0.063 J
0.037
15
Lithium
NA
µg/L
<5
8
<5
7
4J
<5
<5
<5
13
2
NE
Magnesium
376
mg/L
0.886
3.48
2.08
4.58
1.91
1.72
1.16
33.1
10.3
0.008
NE
Manganese
335
µg/L
33
57
11
2 J
29
9
22
30
3,830
1
50
Mercury
132
µg/L
0.03 J
0.02 J
0.03 J
0.04 J
0.02 J
0.02 J
0.02 J
0.03 J
0.03 J
0.01
1
Molybdenum
397
µg/L
< 1
0.27 J
< 1
0.137 J
0.333 J
0.247 J
0.216 J
0.38 J
2.82
0.18
NE
Nickel
152
µg/L
1.12
0.5 J
0.229 J
0.22 J
0.548 J
0.612 J
0.333 J
0.292 J
2.96
0.256
100
Nitrate (as N)
419
mg-N/L
1.1
0.02
0.2
0.09
0.44
0.3
0.13
0.75 J
0.03 J
0.002
10
Selenium
183
µg/L
<1
<1
<1
<1
<1
<1
<1
0.355J
<1
0.193
20
Page 1 of 2

TABLE 6
GROUNDWATER FIELD AND ANALYTICAL RESULTS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent
SWS ID
Units
Monitoring Wells
MDL
15A NCAC 02L
Standards for
Groundwater'
ASV-CB-9*
ASV-CB-9BR*
ASV-CB-9SL*
ASV-LMW-1B*
ASV-LMW-1S*
ASV-LMW-2B
ASV-LMW-2T
ASV-LMW-3B
ASV-LMW-4B
Silver
184
µg/L
< 1
0.064 J
0.168 J
< 1
0.109 J
0.543 J
< 1
< 1
0.984 J
0.035
20
Sulfate
315
mg/L
0.09 J
1.3
0.26
0.31
0.14
2.8
3.9
400
61
0.0428
250
Thallium
194
µg/L
0.074J
<0.2
<0.2
<0.2
0.043J
<0.2
<0.2
<0.2
<0.2
0.041
2
Total Dissolved Solids
311
mg/L
< 25
77
40
85
52
56
41
649
211
25
500
Total Hardness
NA
mg/L
4.8
40.3
18.4
41.6
22.3
19.9
13.3
NA
128.8
NA
NE
Vanadium
209
µg/L
< 1
< 1
< 1
0.469 J
0.238 J
0.579 J
0.309 J
0.173 J
< 1
0.114
7
Zinc
213
µg/L
4J
<15
<15
3J
6J
<15
21
<15
<15
4
1,000
Notes:
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System as of October 10, 2025.
Bold and gray highlighted concentrations are equal to or greater than the 15A NCAC 02L Standard (for pH, bold indicates a measurement less than or greater than the indicated range).
1 15A NCAC 02L Standards for Groundwater - North Carolina Class GA Standards found in 15A NCAC 02L .0202 Groundwater Quality Standards (effective April 1, 2022).
* Denotes an upgradient background monitoring well. Concentrations greater than comparison criteria are provided for informational purposes only and not carried forward to Table 7.
Samples collected by Duke personnel on September 23, 2025.
- - No relevant information.
<- 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.
MDL - laboratory method detection limit; MDL values presented are for samples not diluted by the laboratory during analysis.
mg/L - milligrams per liter
mg-N/L - milligrams nitrogen per liter
mV - millivolts
NA - not analyzed
NCAC - North Carolina Administrative Code
NE - not established
NTU - nephelometric turbidity units
S.U. - standard units
SWS ID - Solid Waste Section Identification Number
Prepared by: CSB Checked by: HCC
Page 2 of 2

TABLE 7
FIELD AND ANALYTICAL RESULTS EQUAL TO OR GREATER THAN GROUNDWATER QUALITY STANDARDS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
September
15A NCAC
Historical
Parameter
Sample ID
2025
Units
02L
Concentration
Cause and Significance
Concentration
Standard'
Range
ASV-LMW-2B
5.3
5.3 - 5.8
Natural variation, within historical concentration range.
ASV-LMW-2T
5.8
5.3 - 5.6
Natural variation, greater than the lower limit of the standard and less
than the upper limit of the historical concentration range
pH
S.U.
6.5-8.5
ASV-LMW-3B
6.1
5.5 - 6.4
Natural variation, within historical concentration range.
ASV-LMW-4B
6.4
6.4 - 6.6
Natural variation, within historical concentration range.
Cobalt
ASV-LMW-4B
9.1
µg/L
1
55.4 - 75.6
Natural variation, less than historical concentration range.
Iron
ASV-LMW-4B
6,340
µg/L
300
20,800 - 27,400
Natural variation, less than historical concentration range.
Manganese
ASV-LMW-4B
3,830
µg/L
50
10,000 - 13,800
Natural variation, less than historical concentration range.
Attributed to gypsum present in the fill material used to construct the
Sulfate
ASV-LMW-3B
400
mg/L
250
75 - 230
MSE berm as described in the CCR Rule Alternative Source
Demonstration (SynTerra, 2025).
Total
Dissolved Solids
ASV-LMW-3B
649
mg/L
500
166 - 389
Attributed to gypsum present in the fill material used to construct the
MSE berm as described in the CCR Rule Alternative Source
Demonstration (SynTerra, 2025).
Prepared by: CSB Checked by: HCC
Notes:
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System as of October 10, 2025.
CCR Rule Alternative Source Demonstration Report - CCR Landfill - Asheville Steam Electric Plant (SynTerra, 2025)
1 - 15A NCAC 02L Standards for groundwater - North Carolina groundwater quality standards (effective April 1, 2022).
Z - Historical concentration ranges are based on data from the four baseline monitoring events that occurred from September 2020 to January 2021, prior to waste placement in the CCR Landfill.
µg/L - micrograms per liter
CCR - coal combustion residuals
mg/L - milligrams per liter
MSE - mechanically stabilized earth
NCAC - North Carolina Administrative Code
S.U. - standard units
Page 1 of 1

TABLE 8
SURFACE WATER FIELD AND ANALYTICAL RESULTS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Constituent)
SWS ID
Units
Engineered
Drain Outlet (Seep)
Surface Water Sample ID
MDL
15A NCAC 0213a
Standards, ISTV°, and
USEPAS Criteria for
Surface Water
ASV-DP-4
ASV-LF-SW-1
ASV-LF-SW-2
ASV-LF-SW-3
pH
320
S.U.
NS
NS
5.4
6.5
6.0 - 9.0
Specific Conductance
323
µmhos/cm
NS
NS
129
73
NE
Temperature
325
Deg C
NS
NS
19
20
<_29
Dissolved Oxygen
NE
mg/L
NS
NS
7.78
7.78
>_4
Oxidation -Reduction Potential
336
mV
NS
NS
383
344
NE
Turbidity
330
NTUs
NS
NS
8.7
5.6
Streams <_50
Laboratory Analyses
Antimony
13
µg/L
NS
NS
< 1
< 1
0.104
5,300$
Arsenic
14
µg/L
NS
NS
< 1
< 1
0.111
10
Barium
15
µg/L
NS
NS
15
14
2
21,000$
Beryllium
23
µg/L
NS
NS
< 1
< 1
0.249
NE
Beryllium (dissolved)
23
µg/L
NS
NS
< 1
< 1
0.249
65^
Boron
428
µg/L
NS
NS
26 J
17 J
5
34,000$
Cadmium
34
µg/L
NS
NS
0.073 J
< 1
0.032
NE
Cadmium (dissolved)
34
µg/L
NS
NS
0.052 J
< 1
0.032
0.75"'
Calcium
375
mg/L
NS
NS
6.13
4.57
0.012
NE
Chloride
301
mg/L
NS
NS
7.5
8.3
0.0154
230
Chromium
51
µg/L
NS
NS
0.36J
0.314J
0.185
NE
Chromium (dissolved)
51
µg/L
NS
NS
< 1
< 1
0.185
180"
Cobalt
53
µg/L
NS
NS
0.354 J
< 1
0.077
4$
Copper
54
µg/L
NS
NS
1.23
0.5 J
0.787
NE
Copper (dissolved)
54
µg/L
NS
NS
2.3
1.07
0.787
3.6"
Fluoride
312
mg/L
NS
NS
0.05 J
0.05 J
0.0479
1.8
Iron
340
µg/L
NS
NS
335
30
4
1,000*
Lead
131
µg/L
NS
NS
< 1
< 1
0.037
NE
Lead (dissolved)
131
µg/L
NS
NS
0.55 J
< 1
0.037
14"'
Lithium
NA
µg/L
NS
NS
< 5
< 5
2
NE
Magnesium
376
mg/L
NS
NS
2.26
1.71
0.008
NE
Manganese
335
µg/L
NS
NS
201
4J
1
100*
Mercury
132
µg/L
NS
NS
0.03 J
0.03 J
0.01
0.012
Molybdenum
397
µg/L
NS
NS
0.272 J
0.124 J
0.18
2,000$
Nickel
152
µg/L
NS
NS
0.202 J
0.17 J
0.256
NE
Nickel (dissolved)
152
µg/L
NS
NS
0.686 J
0.21 J
0.256
140"'
Nitrate
419
mg/L
NS
NS
0.09
0.13
0.0209
NE
Selenium
183
µg/L
NS
NS
< 1
< 1
0.193
NE
Selenium (dissolved)5
183
µg/L
NS
NS
< 1
< 1
0.193
3.1&
Silver
184
µg/L
NS
NS
< 1
< 1
0.035
NE
Silver (dissolved)
184
µg/L
NS
NS
< 1
< 1
0.035
0.30"'
Sulfate
315
mg/L
NS
NS
5.6
3.9
0.0428
NE
Thallium
194
µg/L
NS
NS
< 0.2
< 0.2
0.041
2$
Total Dissolved Solids
311
mg/L
NS
NS
46
35
25
NE
Total Hardness
NA
rng/L
NS
NS
24.6
18.5
-
NE
Vanadium
209
µg/L
NS
NS
< 1
0.122 J
0.114
NE
Zinc
213
µg/L
NS
NS
< 15
< 15
4
NE
Zinc (dissolved)
213
µg/L
NS
NS
8 J
< 15
4
1 3_L
Prepared by: CSB Checked by: HCC
Notes:
Bold and gray highlighted concentrations are equal to or greater than NCAC 02B standards (for pH, greater than or less than comparison criteria). Concentrations greater than other comparison criteria are bold only.
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System as of October 10, 2025.
Samples collected by Duke Energy personnel on September 23, 2025.
1- List of constituents analyzed were approved by the NCDEQ on March 20, 2023.
Z- Solid Waste Section Identification. Unique identification assigned by the Section.
3 - 15A NCAC 02B Standards for Surface Water - 15A NCAC 02B standards for Class C surface waters. North Carolina surface water and wetland standards (effective September 1, 2022).
° - In -stream target value (ISTV) for surface water- In -stream target values established per 15A NCAC 02B .0202 and .0208. A concentration greater than a published ISTV is not automatically a violation of the water quality standard
for toxicity.
5 - Dissolved selenium was added to the constituent list when the Water Monitoring Quality Plan Update was submitted in September 2023, and approved by the NCDEQ in October 2023. Dissolved selenium will be analyzed during
subsequent semiannual monitoring events for the CCR Landfill.
s - A concentration greater than a published ISTV is not automatically a violation of the water quality standard for toxicity. Comparison value presented is the lesser of the Aquatic Life & Secondary Recreation or fish consumption
value, when applicable. ISTV is based on acute method. Compliance with acute instream standard is not applicable to sampling method described in 15A NCAC 02B (11)(e).
USEPA Criteria for Surface Water - U.S. Environmental Protection Agency (USEPA) National Recommended Water Quality Criteria do not constitute regulations or impose a legally binding requirement. Therefore, comparisons with
those criteria are for information purposes only.
Comparison criteria based on acute sampling method described in 15A NCAC 02B (11)(e). Compliance with acute in -stream standard is not applicable to sampling method and provided for screening purposes only.
Hardness -dependent standard calculated using 25 mg/L hardness and not actual in -stream hardness value. Hardness -dependent standard for chromium III calculated using 25 mg/L hardness and not actual in -stream hardness value.
Provided for screening purposes only.
& - Selenium standard for lotic water based on a 30-day average. Not applicable to the sampling method and provided for screening purposes only.
- - No relevant information.
<- Concentration not detected at or greater than 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.
MDL - laboratory method detection limit; MDL values presented are for samples not diluted by the laboratory during analysis.
mg/L - milligrams per liter
mV - millivolts
NA - not applicable
NCAC - North Carolina Administrative Code
NCDEQ- North Carolina Department of Environmental Quality
NE - not established
NS - not sampled
NTU - nephelometric turbidity units
S.U. - standard units
SWS - Solid Waste Section
Page 1 of 1

TABLE 9
FIELD AND ANALYTICAL RESULTS THAT EQUAL OR EXCEED SURFACE WATER QUALITY STANDARDS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
15A NCAC 02B
Historical
September 2025Units
Parameter
Sample ID
Standard
Concentration
Cause and Significance
Concentration
(Class C)1
Range
pH is less than the range of historical concentrations
pH
ASV-LF-SW-2
5.4
S.U.
6.0 - 9.0
6.3 - 8.1
at ASV-LF-SW-2.
Prepared by: CSB Checked by: ADW
Notes:
Analytical data presented in this table reflects the Duke Energy Biological Analytical Data Storage System (BASS) as of 10/10/2025.
1- 15A NCAC 02B Standards for Surface Water - 15A NCAC 02B standards for Class C surface waters. North Carolina surface water and wetland standards (effective September 1, 2022).
2 - Historical ranges are based on data in Duke Energy Progress, LLC (Duke Energy) analytical results database and previous reporting. Historical ranges exclude sample data with turbidity values
greater than 10 NTUs.
µg/L - micrograms per liter
CCR - Coal combustion residuals
NCAC - North Carolina Administrative Code
S.U. - Standard Units

TABLE 10
LEACHATE FIELD AND ANALYTICAL RESULTS
SEMIANNUAL WATER QUALITY MONITORING REPORT
CCR LANDFILL (PERMIT NO. 1119-INDUS-2020)
SEPTEMBER 2025 SAMPLING EVENT
ASHEVILLE STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ARDEN, NC
Parameter
SWS ID
Units
Leachate Collection Sample
MDL
ASV-LCS-1
pH
320
S.U.
6.3
-
Specific Conductance
323
µmhos/cm
1884
-
Temperature
325
Deg C
21
-
Dissolved Oxygen
-
mg/L
1.96
-
Oxidation -Reduction Potential
336
mV
477
-
EH
-
mV
682
-
Turbidity
330
NTUs
7.7
-
Antimony
13
µg/L
1.09
0.104
Arsenic
14
µg/L
2.78
0.111
Barium
15
µg/L
20
2
Beryllium
23
µg/L
< 1
0.249
Boron
428
µg/L
9220
5
Cadmium
34
µg/L
0.079 J
0.032
Calcium
375
mg/L
332
0.012
Chloride
301
mg/L
32
0.0154
Chromium
51
µg/L
0.404 J
0.185
Cobalt
53
µg/L
< 1
0.077
Copper
54
µg/L
0.591 J
0.787
Fluoride
312
mg/L
1
0.0479
Iron
340
µg/L
97
4
Lead
131
µg/L
0.096J
0.037
Lithium
NA
µg/L
63
2
Magnesium
376
mg/L
74
0.008
Manganese
342
µg/L
21
1
Mercury
132
µg/L
0.03 J
0.01
Molybdenum
397
µg/L
493
0.18
Nickel
152
µg/L
2.73
0.256
Selenium
183
µg/L
16.7
0.193
Silver
184
µg/L
< 1
0.035
Sulfate
315
mg/L
680
0.0428
Thallium
194
µg/L
0.036 J
0.041
Total Dissolved Solids
311
mg/L
1,590
25
Vanadium
209
µg/L
2.39
0.114
Zinc
213
µg/L
< 15
4
Notes:
Analytical data presented in this table reflect the Duke Energy Biological Analytical Data Storage System as of October 10, 2025.
Sample collected by Duke personnel on September 23, 2025.
Comparative criteria are not applied to leachate collection samples.
< - Concentration not detected at or greater than the adjusted reporting limit.
- - No relevant information.
µg/L - micrograms per liter
µmhos/cm - micromhos per centimeter
CCR - coal combustion residuals
Deg C - degrees Celsius
J - Value is estimated. The result is below the reporting limit or potentially biased based on data validation.
MDL - laboratory method detection limit; MDL values presented are for samples not diluted by the laboratory during analysis.
mg/L - milligrams per liter
mV - millivolts
NTU - nephelometric turbidity unit
S.U. - standard units
SWS ID - Solid Waste Section Identification Number
Prepared by: CSB Checked by: HCC
Page 1 of 1

Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
APPENDIX A
FIELD SAMPLING FORMS
41P
synTerra
Science & Engineering Consultants

INTERNAL
DUKE
EE
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV LF-SW-2
—
Date:23 Sep 2025
Sunny, Air
Temp:74 deg F
Site ID
ASV
Purge Method / Pump Intake Depth
--- / --- ---
Reference Elevation
--- ---
Project Name
LF
Purge Equipment
Grab Sample
Initial Depth to Water
--- ---
Appearance
Clear, None
Total Volume Purged
--- ---
Total Well Depth*
--- ---
Pump Condition
---
Volume of Water in Well
--- ---
Well Diameter / Well Screen Interval*
Sampler Name:
CJZ
Date and Time:
9/23/2025 9:40
Time
DTW
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 09:37 AM
---
0
0.00
19
5.37
129
7.78
383
8.7
Sample ID(s):
ASV_LF-SW-2_20250923-0940_LF
Purging Comments:
Sampling Comments:
2025023315
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LF-SW-3
Date:23 Sep 2025
Cl
Cloudy, Air
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
--- / --- ---
Reference Elevation
--- ---
Project Name
LF
Purge Equipment
Grab Sample
Initial Depth to Water
--- ---
Appearance
Clear, None
Total Volume Purged
--- ---
Total Well Depth*
--- ---
Pump Condition
---
Volume of Water in Well
--- ---
Well Diameter / Well Screen Interval*
Sampler Name:
CJz
Date and Time:
9/23/2025 12:50
Time
DTW
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 12:46 PM
---
0
0.00
20
6.54
73
7.78
344
5.6
Sample ID(s):
ASV_LF-SW-3_20250923-1250_LF
Purging Comments:
Sampling Comments:
2025023316
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_CB-9
Date:23 Sep 2025
st, Air
Overcast,
deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
43.44 ft
Appearance
Clear, None
Total Volume Purged
0.28 g
Total Well Depth*
64.66 ft
Pump Condition
---
Volume of Water in Well
3.03 g
Well Diameter / Well Screen Interval*
2 in / 52 - 62 ft
Sampler Name:
CJZ
Date and Time:
9/23/2025 13:55
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
9/23/25 01:47 PM
43.66
180
0.00
19
4.53
34
2.99
438
---
9/23/25 01:50 PM
43.66
180
0.14
19
4.55
35
2.93
440
9/23/25 01:53 PM
43.66
180
0.28
19
4.55
35
2.90
441
Sample ID(s):
ASV_CB-9_20250923-1355_CCR,ASV_CB-9_20250923-1355_LF
Purging Comments:
Sampling Comments:
2025024378
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_CB-9BR
Date:23 Sep 2025
Overcast,
st, Air
deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
49.31 ft
Appearance
Clear, None
Total Volume Purged
0 g
Total Well Depth*
93 ft
Pump Condition
---
Volume of Water in Well
7.13g
Well Diameter / Well Screen Interval*
2in/83-93ft
Sampler Name:
CJZ
Date and Time:
9/23/2025 14:20
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 02:12 PM
49.66
300
0.00
19
5.59
108
0.66
366
4.4
9/23/25 02:15 PM
49.66
300
0.00
19
5.56
110
0.60
387
3.4
9/23/25 02:18 PM
49.66
300
0.00
19
5.55
111
0.58
394
2.4
Sample ID(s):
ASV_CB-9BR_20250923-1420_CCR,ASV_CB-9BR_20250923-
1420 LF
Purging Comments:
---
Sampling Comments:
2025024379
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
EE
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV CB-9SL
—
Date:23 Sep 2025
Sunny, Air
Temp:85 deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Equipment_ Purge / 5 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
35.98 ft
Appearance
Clear, None
Total Volume Purged
0.25 g
Total Well Depth*
74 ft
Pump Condition
---
Volume of Water in Well
6.20g
Well Diameter / Well Screen Interval*
2in/69-74ft
Sampler Name:
CJZ
Date and Time:
9/23/2025 14:55
Time
DTW
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 02:54 PM
---
100
0.00
21
5.27
61
3.88
404
2.6
Sample ID(s):
ASV_CB-9SL_20250923-1455_CCR,ASV_CB-9SL_20250923-
1455 LF
Purging Comments:
---
Sampling Comments:
2025024380
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_DP-4
Date:23 Sep 2025
Cloudy, Air
Cl
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
--- / --- ---
Reference Elevation
--- ---
Project Name
L F
Purge Equipment
---
Initial Depth to Water
--- ---
Appearance
---
Total Volume Purged
--- ---
Total Well Depth*
--- ---
Pump Condition
---
Volume of Water in Well
--- ---
Well Diameter / Well Screen Interval*
Sampler Name:
CJZ
Date and Time:
---
Time
DTW
Flow Rate
Purge
Volume
Temperature
pH
Specific
Conductivity
Dissolved
Oxygen
ORP
Turbidity
9/23/25 09:54 AM
---
---
---
---
---
---
---
Sample ID(s):
Well Dry
Purging Comments:
Sampling Comments:
QAQC Sample(s):
i ---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LCS-1
Date:23 Sep 2025
Cl
Cloudy, Air
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Equipment_ Purge / --- ---
Reference Elevation
--- ---
Project Name
LF
Purge Equipment
Grab Sample
Initial Depth to Water
0 ft
Appearance
Clear, None
Total Volume Purged
1.05 g
Total Well Depth*
--- ---
Pump Condition
---
Volume of Water in Well
--- g
Well Diameter / Well Screen Interval*
--- in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 10:10
Time
DTW
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 10:08 AM
---
500
0.00
21
6.34
1884
1.96
477
7.7
Sample ID(s):
ASV_LCS-1_20250923-1010_LF
Purging Comments:
Sampling Comments:
2025023313
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
EE
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV LMW-1B
—
Date:23 Sep 2025
Sunny, Air
Temp:80 deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
22.45 ft
Appearance
Clear, None
Total Volume Purged
0.4 g
Total Well Depth*
101.5 ft
Pump Condition
---
Volume of Water in Well
12.90 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 13:30
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 01:22 PM
22.97
250
0.00
20
5.67
121
0.38
311
3.0
9/23/25 01:25 PM
22.97
250
0.20
20
5.69
125
0.33
321
2.2
9/23/25 01:28 PM
22.97
250
0.40
20
5.70
126
0.29
324
2.6
Sample ID(s):
ASV_LMW-1 B_20250923-1330_CCR,ASV_LMW-1 B_20250923-
1330 LF
Purging Comments:
---
Sampling Comments:
2025024377
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LMW-1S
Date:23 Sep 2025
Overcast,
st, Air
deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
25.35 ft
Appearance
Clear, None
Total Volume Purged
0.48 g
Total Well Depth*
64.9 ft
Pump Condition
---
Volume of Water in Well
6.45 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 13:05
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 12:58 PM
23.77
300
0.00
19
5.33
72
1.26
378
11.3
9/23/25 01:01 PM
23.77
300
0.24
19
5.30
71
1.22
381
8.9
9/23/25 01:04 PM
23.77
300
0.48
19
5.29
71
1.20
382
7.9
Sample ID(s):
ASV_LMW-1 S_20250923-1305_CCR,ASV_LMW-1 S_20250923-
1305 LF
Purging Comments:
---
Sampling Comments:
2025024376
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LMW-2B
Date:23 Sep 2025
Cl
Cloudy, Air
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
64.73 ft
Appearance
Clear, None
Total Volume Purged
0.16 g
Total Well Depth*
110.3 ft
Pump Condition
---
Volume of Water in Well
7.44 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 12:20
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 12:11 PM
65.11
300
0.00
18
5.35
77
0.77
273
6.5
9/23/25 12:14 PM
65.11
300
0.08
18
5.33
78
0.71
278
5.6
9/23/25 12:17 PM
65.11
300
0.16
18
5.32
79
0.67
281
3.5
Sample ID(s):
ASV_LMW-2B_20250923-1220_CCR,ASV_LMW-2B_20250923-
1220 LF
Purging Comments:
---
Sampling Comments:
2025024375
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LMW-2T
Date:23 Sep 2025
Cloudy, Air
Cl
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
64.75 ft
Appearance
Clear, None
Total Volume Purged
0.42 g
Total Well Depth*
86.2 ft
Pump Condition
---
Volume of Water in Well
3.50 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 12:00
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 11:48 AM
65.12
180
0.00
18
6.12
64
1.56
366
22.1
9/23/25 11:51 AM
64.17
180
0.14
18
5.88
63
0.88
377
14.4
9/23/25 11:54 AM
64.17
180
0.28
18
5.84
63
0.92
379
11.5
9/23/25 11:57 AM
64.17
180
0.42
18
5.82
62
0.84
382
9.8
Sample ID(s):
ASV_LMW-2T_20250923-1200_CCR,ASV_LMW-2T_20250923-
1200 LF
Purging Comments:
---
Sampling Comments:
2025024374
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LMW-3B
Date:23 Sep 2025
Cl
Cloudy, Air
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
33.66 ft
Appearance
Clear, None
Total Volume Purged
0.28 g
Total Well Depth*
43.1 ft
Pump Condition
---
Volume of Water in Well
1.54 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 11:25
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 11:18 AM
34.02
180
0.00
16
6.10
809
2.33
397
4.0
9/23/25 11:21 AM
34.02
180
0.14
16
6.12
813
2.41
400
3.3
9/23/25 11:24 AM
34.02
180
0.28
16
6.13
814
2.45
402
3.6
Sample ID(s):
ASV_LMW-3B_20250923-1125_CCR,ASV_LMW-3B_20250923-
1125 LF
Purging Comments:
---
Sampling Comments:
2025024373
QAQC Sample(s):
---
* = measured from ground surface

INTERNAL
DUKE
FINERY
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV_LMW-4B
Date:23 Sep 2025
Cl
Cloudy, Air
Partly ly deg F
Site ID
ASV
Purge Method / Pump Intake Depth
Low _Flow/ 10 ft
Reference Elevation
--- ---
Project Name
CCR
Purge Equipment
Bladder pump
Initial Depth to Water
23 ft
Appearance
Clear, None
Total Volume Purged
0.56 g
Total Well Depth*
48.8 ft
Pump Condition
---
Volume of Water in Well
4.21 g
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
9/23/2025 10:30
Time
DTW
(ft)
Flow Rate
(ml/min)
Purge
Volume
(g)
Temperature
(C)
pH
(SU)
Specific
Conductivity
(US/cm)
Dissolved
Oxygen
(mg/1)
ORP
(mV)
Turbidity
(NTU)
9/23/25 10:23 AM
23.55
350
0.00
18
6.43
244
0.45
188
17.7
9/23/25 10:26 AM
23.55
350
0.28
18
6.44
245
0.39
169
5.0
9/23/25 10:29 AM
23.55
350
0.56
18
6.44
245
0.35
163
4.5
Sample ID(s):
ASV_LMW-4B_20250923-1030_CCR,ASV_LMW-4B_20250923-
1030 LF
Purging Comments:
---
Sampling Comments:
2025024372
QAQC Sample(s):
ASV FD-20250923-1
* = measured from ground surface

INTERNAL
DUKE
EE
Duke Energy Groundwater Sampling
Field Data Form
Well ID:
ASV SW-1
—
Date:23 Sep 2025
Sunny, Air
Temp:77 deg F
Site ID
ASV
Purge Method / Pump Intake Depth
--- / --- ---
Reference Elevation
--- ---
Project Name
L F
Purge Equipment
---
Initial Depth to Water
--- ---
Appearance
---
Total Volume Purged
--- ---
Total Well Depth*
--- ---
Pump Condition
---
Volume of Water in Well
--- ---
Well Diameter / Well Screen Interval*
2 in / --- - --- ---
Sampler Name:
CJZ
Date and Time:
---
Time
DTW
Flow Rate
Purge
Volume
Temperature
pH
Specific
Conductivity
Dissolved
Oxygen
ORP
Turbidity
9/23/25 09:47 AM
---
---
---
---
---
---
---
Sample ID(s):
Well Dry
Purging Comments:
Sampling Comments:
QAQC Sample(s):
i ---
* = measured from ground surface

Semiannual Water Quality Monitoring Report — September 2025 Sampling Event
Asheville Steam Electric Plant — CCR Landfill (Permit No. 1119-INDUS-2020)
Arden, North Carolina
APPENDIX B
LABORATORY REPORT AND
CHAIN -OF -CUSTODY FORMS
41P
synTerra
Science & Engineering Consultants

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: J25090317
Project Name: ASHEVILLE - ASV CCR LANDFILL
Task Code: LF
Customer Name(s): Ashley Healy,B Moeller, D Obrien,J Stowe, Synterra
Customer Address: Asheville Steam Station
200 CP and L Drive
Arden,NC 28704
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: &V , +'fDate: 10/13/2025
(Signature)
Peggy Kendall
Program Comments:
Please contact the Program Manager (Peggy Kendall) with any questions regarding this report.
Data Flags & Calculations:
Page 1 of 33
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
Page 2 of 33
Sample Description
2025023304
ASHEVILLE
23-Sep-25
1:30 PM
Connor Zahora
ASV_LMW-1B
2025023305
ASHEVILLE
23-Sep-25
1:05 PM
Connor Zahora
ASV_LMW-1S
2025023306
ASHEVILLE
23-Sep-25
12:20 PM
Connor Zahora
ASV_LMW-2B
2025023307
ASHEVILLE
23-Sep-25
12:00 PM
Connor Zahora
ASV_LMW-2T
2025023308
ASHEVILLE
23-Sep-25
11:25 AM
Connor Zahora
ASV_LMW-3B
2025023309
ASHEVILLE
23-Sep-25
10:30 AM
Connor Zahora
ASV_LMW-4B
2025023310
ASHEVILLE
23-Sep-25
1:55 PM
Connor Zahora
ASV—CB-9
2025023311
ASHEVILLE
23-Sep-25
2:20 PM
Connor Zahora
ASV_CB-9BR
2025023312
ASHEVILLE
23-Sep-25
2:55 PM
Connor Zahora
ASV_CB-9SL
2025023313
ASHEVILLE
23-Sep-25
10:10 AM
Connor Zahora
ASV_LCS-1
2025023315
ASHEVILLE
23-Sep-25
9:40 AM
Connor Zahora
ASV_LF-SW-2
2025023316
ASHEVILLE
23-Sep-25
12:50 PM
Connor Zahora
ASV_LF-SW-3
2025023318
ASHEVILLE
23-Sep-25
Connor Zahora
ASV_FD-20250923-2
2025023319
ASHEVILLE
23-Sep-25
3:30 PM
Connor Zahora
ASV_FB-20250923-1530
14 Total Samples

Page 3 of 33
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: 10/13/2025

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-1 B
Collection Date: 09/23/2025 01:30 PM Loc code: ASV LMW-1 B
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
8.6
mg/L
Fluoride
0.04 U
mg/L
Nitrate
0.38
mg/L
Nitrate as N
0.09
mg-N/L
Sulfate
0.31
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.04 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.027
mg/L
Boron (B)
0.009 J
mg/L
Calcium (Ca)
9.10
mg/L
Iron (Fe)
0.025
mg/L
Lithium (Li)
0.007
mg/L
Magnesium (Mg)
4.58
mg/L
Manganese (Mn)
0.002 J
mg/L
Zinc (Zn)
0.003 J
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.374 J
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)
0.137 J
ug/L
Nickel (Ni)
0.22 J
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)
0.469 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 85.0 mg/L
Sample #: 2025023304
Matrix: GW RCRA
Page 4 of 33
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
09/24/2025 07:20
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:20
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:20
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 07:20
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 07:20
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 06:55
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:08
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:08
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.168
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 16:46
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 16:46
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 16:46
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 16:46
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 16:46
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 16:46
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 16:46
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 16:46
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-lS
Collection Date: 09/23/2025 01:05 PM Loc code: ASV LMW-1 S
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
6.5
mg/L
Fluoride
0.04 U
mg/L
Nitrate
1.9
mg/L
Nitrate as N
0.44
mg-N/L
Sulfate
0.14
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.02 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.039
mg/L
Boron (B)
0.015 J
mg/L
Calcium (Ca)
5.77
mg/L
Iron (Fe)
0.063
mg/L
Lithium (Li)
0.004 J
mg/L
Magnesium (Mg)
1.91
mg/L
Manganese (Mn)
0.029
mg/L
Zinc (Zn)
0.006 J
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.641 J
ug/L
Cobalt (Co)
0.219 J
ug/L
Copper (Cu)
0.214 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.333 J
ug/L
Nickel (Ni)
0.548 J
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.109 J
ug/L
Thallium (TI) Low Level
0.043 J
ug/L
Vanadium (V)
0.238 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 52.0 mg/L
Sample #: 2025023305
Matrix: GW RCRA
Page 5 of 33
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
09/24/2025 08:09
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:09
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:09
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 08:09
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 08:09
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 06:57
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:20
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:20
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.168
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 16:11
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 16:11
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 16:11
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 16:11
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 16:11
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 16:11
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 16:11
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 16:11
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-2B
Collection Date: 09/23/2025 12:20 PM Loc code: ASV LMW-2B
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
8.1
mg/L
Fluoride
0.04 U
mg/L
Nitrate
1.3
mg/L
Nitrate as N
0.30
mg-N/L
Sulfate
2.8
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.02 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.041
mg/L
Boron (B)
0.019 J
mg/L
Calcium (Ca)
5.15
mg/L
Iron (Fe)
0.049
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
1.72
mg/L
Manganese (Mn)
0.009
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.544 J
ug/L
Cobalt (Co)
0.1287 U
ug/L
Copper (Cu)
0.228 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.247 J
ug/L
Nickel (Ni)
0.612 J
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.543 J
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.579 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 56.0 mg/L
Sample #: 2025023306
Matrix: GW RCRA
Page 6 of 33
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
09/24/2025 08:25
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:25
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:25
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 08:25
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 08:25
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:00
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:24
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:24
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.168
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 16:54
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 16:54
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 16:54
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 16:54
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 16:54
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 16:54
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 16:54
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 16:54
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-2T
Collection Date: 09/23/2025 12:00 PM Loc code: ASV LMW-2T
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
8.9
mg/L
Fluoride
0.04 U
mg/L
Nitrate
0.56
mg/L
Nitrate as N
0.13
mg-N/L
Sulfate
3.9
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.02 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.026
mg/L
Boron (B)
0.027 J
mg/L
Calcium (Ca)
3.40
mg/L
Iron (Fe)
0.087
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
1.16
mg/L
Manganese (Mn)
0.022
mg/L
Zinc (Zn)
0.021
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.32 J
ug/L
Copper (Cu)
0.461 J
ug/L
Lead (Pb)
0.071 J
ug/L
Molybdenum (Mo)
0.216 J
ug/L
Nickel (Ni)
0.333 J
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)
0.309 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 41.0 mg/L
Sample #: 2025023307
Matrix: GW RCRA
Page 7 of 33
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
09/24/2025 08:41
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:41
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:41
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 08:41
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 08:41
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:02
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:28
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:28
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.168
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 17:03
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 17:03
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 17:03
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 17:03
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 17:03
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 17:03
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 17:03
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 17:03
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis Page 8 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-3B Sample #: 2025023308
Collection Date: 09/23/2025 11:25 AM Loc code: ASV LMW-3B Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
3.5
mg/L
Fluoride
0.04 U
mg/L
Nitrate
3.3
mg/L
Nitrate as N
0.75
mg-N/L
Sulfate
400
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.054
mg/L
Boron (B)
0.006 J
mg/L
Calcium (Ca)
124
mg/L
Iron (Fe)
0.020
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
33.1
mg/L
Manganese (Mn)
0.030
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.349 J
ug/L
Cobalt (Co)
0.1287 U
ug/L
Copper (Cu)
0.81 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.38 J
ug/L
Nickel (Ni)
0.292 J
ug/L
Selenium (Se)
0.355 J
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.173 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 649 mg/L
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
09/24/2025 09:14
BGN9034
0.5
0.04
5
EPA 9056A
09/24/2025 09:14
BGN9034
0.5
0.04
5
EPA 9056A
09/24/2025 09:14
BGN9034
0.115
0.002
5
EPA 9056A
09/24/2025 09:14
BGN9034
5
0.041
50
EPA 9056A
09/24/2025 09:14
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:05
SNEGLIA
0.005
0.0011
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.05
0.0046
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.5
0.0124
10
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.01
0.0033
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.005
0.0027
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.02
0.0039
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.005
0.0007
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
0.015
0.0011
1
SW 601 OD
10/06/2025 09:41
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.168
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 17:11
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 17:11
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 17:11
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 17:11
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 17:11
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 17:11
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 17:11
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 17:11
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis Page 9 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LMW-4B Sample #: 2025023309
Collection Date: 09/23/2025 10:30 AM Loc code: ASV LMW-4B Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
7.0
mg/L
Fluoride
0.48
mg/L
Nitrate
0.13 J
mg/L
Nitrate as N
0.03 J
mg-N/L
Sulfate
61
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.070
mg/L
Boron (B)
0.024 J
mg/L
Calcium (Ca)
34.6
mg/L
Iron (Fe)
6.34
mg/L
Lithium (Li)
0.013
mg/L
Magnesium (Mg)
10.3
mg/L
Manganese (Mn)
3.83
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
0.207 J
ug/L
Beryllium (Be)
0.791 J
ug/L
Cadmium (Cd)
0.0403 U
ug/L
Chromium (Cr)
0.2894 U
ug/L
Cobalt (Co)
9.10
ug/L
Copper (Cu)
0.388 J
ug/L
Lead (Pb)
0.063 J
ug/L
Molybdenum (Mo)
2.82
ug/L
Nickel (Ni)
2.96
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.984 J
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.1119 U
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 211 mg/L
Method Analysis Date/Time Analyst
0.2
0.015
2
EPA 9056A
09/24/2025 09:30
BGN9034
0.2
0.04
2
EPA 9056A
09/24/2025 09:30
BGN9034
0.2
0.04
2
EPA 9056A
09/24/2025 09:30
BGN9034
0.046
0.002
2
EPA 9056A
09/24/2025 09:30
BGN9034
2
0.041
20
EPA 9056A
09/24/2025 09:30
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:07
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:36
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:36
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.168
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 17:19
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 17:19
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 17:19
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 17:19
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 17:19
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 17:19
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 17:19
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 17:19
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis Page 10 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV CB-9 SamDle #: 2025023310
Collection Date: 09/23/2025 01:55 PM Loc code: ASV-CB-9 Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090455
Chloride
7.0
mg/L
Fluoride
0.04 U
mg/L
Nitrate
4.9
mg/L
Nitrate as N
1.1
mg-N/L
Sulfate
0.09 J
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.028
mg/L
Boron (B)
0.006 J
mg/L
Calcium (Ca)
0.449
mg/L
Iron (Fe)
0.006 J
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
0.886
mg/L
Manganese (Mn)
0.033
mg/L
Zinc (Zn)
0.004 J
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.315 J
ug/L
Cobalt (Co)
0.905 J
ug/L
Copper (Cu)
1.03
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.1066 U
ug/L
Nickel (Ni)
1.12
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.074 J
ug/L
Vanadium (V)
0.1119 U
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 25 U mg/L
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
09/24/2025 08:57
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:57
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:57
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 08:57
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 08:57
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:09
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:40
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:40
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.168
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 17:28
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 17:28
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 17:28
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 17:28
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 17:28
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 17:28
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 17:28
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 17:28
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV CB-9BR
Collection Date: 09/23/2025 02:20 PM Loc code: ASV CB-9BR
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090456
Chloride
8.1
mg/L
Fluoride
0.05 J
mg/L
Nitrate
0.10
mg/L
Nitrate as N
0.02
mg-N/L
Sulfate
1.3
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.02 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.024
mg/L
Boron (B)
0.0046 U
mg/L
Calcium (Ca)
10.4
mg/L
Iron (Fe)
0.146
mg/L
Lithium (Li)
0.008
mg/L
Magnesium (Mg)
3.48
mg/L
Manganese (Mn)
0.057
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.27 J
ug/L
Nickel (Ni)
0.5 J
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.064 J
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.1119 U
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 77.0 mg/L
Sample #: 2025023311
Matrix: GW RCRA
Page 11 of 33
Method Analysis Date/Time Analyst
0.5
0.015
5
EPA 9056A
09/24/2025 07:47
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:47
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:47
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 07:47
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 07:47
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:12
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:44
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:44
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.168
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 18:02
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 18:02
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 18:02
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 18:02
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 18:02
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 18:02
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 18:02
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 18:02
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV CB-9SL
Collection Date: 09/23/2025 02:55 PM Loc code: ASV CB-9SL
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090456
Chloride
8.1
mg/L
Fluoride
0.04 U
mg/L
Nitrate
0.90
mg/L
Nitrate as N
0.20
mg-N/L
Sulfate
0.26
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.041
mg/L
Boron (B)
0.0046 U
mg/L
Calcium (Ca)
3.93
mg/L
Iron (Fe)
0.006 J
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
2.08
mg/L
Manganese (Mn)
0.001 J
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
Antimony (Sb)
0.1259 U
ug/L
Arsenic (As)
0.168 U
ug/L
Beryllium (Be)
0.348 J
ug/L
Cadmium (Cd)
0.0403 U
ug/L
Chromium (Cr)
0.709 J
ug/L
Cobalt (Co)
0.1287 U
ug/L
Copper (Cu)
0.3 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.1066 U
ug/L
Nickel (Ni)
0.229 J
ug/L
Selenium (Se)
0.2052 U
ug/L
Silver (Ag)
0.168 J
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.1119 U
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 40.0 mg/L
Sample #: 2025023312
Matrix: GW RCRA
Page 12 of 33
Method Analysis Date/Time Analyst
0.1
0.015
1
EPA 9056A
09/24/2025 08:36
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:36
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 08:36
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 08:36
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 08:36
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:21
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:48
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:48
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.168
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 18:10
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 18:10
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 18:10
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 18:10
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 18:10
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 18:10
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 18:10
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 18:10
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis Page 13 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LCS-1 Sample #: 2025023313
Collection Date: 09/23/2025 10:10 AM Loc code: ASV LCS-1 Matrix: GW RCRA
Analyte
Result
Units Qualifiers
RDL
MDL
DF
Method
Analysis Date/Time
Analyst
TOTAL ALKALINITY - Q25100005
Total Alkalinity as CaCO3
439
mg/L
5
1.7
1
SM 2320B-2011
09/30/2025 12:14
LELL107
(CaCO3)
Alkalinity, Carbonate
1.7 U
mg/L
5
1.7
1
SM 2320B-2011
09/30/2025 12:14
LELL107
Alkalinity, Bicarbonate
439
mg/L
5
1.7
1
SM 2320B-2011
09/30/2025 12:14
LELL107
INORGANIC IONS BY IC - Q25090456
Chloride
32
mg/L
1
0.015
10
EPA 9056A
09/24/2025 09:24
BGN9034
Fluoride
1.0
mg/L
1
0.04
10
EPA 9056A
09/24/2025 09:24
BGN9034
Nitrate
0.4 J
mg/L
1
0.04
10
EPA 9056A
09/24/2025 09:24
BGN9034
Nitrate as N
0.09
mg-N/L
0.023
0.002
1
EPA 9056A
09/24/2025 09:24
BGN9034
Sulfate
680
mg/L
10
0.041
100
EPA 9056A
09/24/2025 09:24
BGN9034
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
0.05
0.01
1
EPA 7470A
10/01/2025 07:29
SNEGLIA
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.020
mg/L
0.005
0.0011
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Boron (B)
9.22
mg/L
0.05
0.0046
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Calcium (Ca)
332
mg/L
0.5
0.0124
10
SW 601 OD
10/06/2025 09:45
DDAUZVA
Iron (Fe)
0.097
mg/L
0.01
0.0033
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Lithium (Li)
0.063
mg/L
0.005
0.0027
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Magnesium (Mg)
74.0
mg/L
0.02
0.0039
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Manganese (Mn)
0.021
mg/L
0.005
0.0007
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Potassium (K)
18.7
mg/L
0.1
0.0119
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Sodium (Na)
23.6
mg/L
0.05
0.0132
1
SW 601 OD
10/06/2025 09:45
DDAUZVA
Zinc (Zn)
0.0011 U
mg/L
0.015
0.0011
1
SW 601 OD
10/06/2025 09:45
DDAUZVA

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LCS-1
Collection Date: 09/23/2025 10:10 AM Loc code: ASV LCS-1
Analyte
Result
Units Qualifiers
RDL
MDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q25090503
Antimony (Sb)
1.09
ug/L
1
0.1259
1
Arsenic (As)
2.78
ug/L
1
0.168
1
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
1
Cadmium (Cd)
0.079 J
ug/L
1
0.0403
1
Chromium (Cr)
0.404 J
ug/L
1
0.2894
1
Cobalt (Co)
0.1287 U
ug/L
1
0.1287
1
Copper (Cu)
0.591 J
ug/L
1
0.1994
1
Lead (Pb)
0.096 J
ug/L
1
0.0579
1
Molybdenum (Mo)
493
ug/L
1
0.1066
1
Nickel (Ni)
2.73
ug/L
1
0.1004
1
Selenium (Se)
16.7
ug/L
1
0.2052
1
Silver (Ag)
0.0521 U
ug/L
1
0.0521
1
Thallium (TI) Low Level
0.036 J
ug/L
0.2
0.0326
1
Vanadium (V)
2.39
ug/L
1
0.1119
1
TOTAL DISSOLVED SOLIDS - Q25090527
TDS
1590
mg/L
50
25
1
Sample #: 2025023313
Matrix: GW RCRA
Page 14 of 33
Method
Analysis Date/Time
Analyst
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SW 6020B
10/01/2025 18:18
MHALL3
SW 6020E
10/01/2025 18:18
MHALL3
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LF-SW-2
Collection Date: 09/23/2025 09:40 AM Loc code: ASV LF-SW-2
Analyte
Result
Units
Qualifiers RDL
MDL
INORGANIC IONS BY IC - Q25090456
Chloride
7.5
mg/L
0.1
0.015
Fluoride
0.05 J
mg/L
0.1
0.04
Nitrate
0.40
mg/L
0.1
0.04
Nitrate as N
0.09
mg-N/L
0.023
0.002
Sulfate
5.6
mg/L
0.1
0.041
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
0.05
0.01
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
- Q25090494
Zinc (Zn)
0.008 J
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.015
mg/L
0.005
0.0011
Boron (B)
0.026 J
mg/L
0.05
0.0046
Calcium (Ca)
6.13
mg/L
0.05
0.0124
Iron (Fe)
0.335
mg/L
0.01
0.0033
Lithium (Li)
0.0027 U
mg/L
0.005
0.0027
Magnesium (Mg)
2.26
mg/L
0.02
0.0039
Manganese (Mn)
0.201
mg/L
0.005
0.0007
Total Hardness (Ca and Mg)
24.6
mg/L
0.19
(CaCO3)
Zinc (Zn)
0.0011 U
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q25090501
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
Cadmium (Cd)
0.052 J
ug/L
1
0.0403
Chromium (Cr)
0.2894 U
ug/L
1
0.2894
Copper (Cu)
2.30
ug/L
1
0.1994
Lead (Pb)
0.55 J
ug/L
1
0.0579
Nickel (Ni)
0.686 J
ug/L
1
0.1004
Selenium (Se)
0.2052 U
ug/L
1
0.2052
Silver (Ag)
0.0521 U
ug/L
1
0.0521
Sample #: 2025023315
Matrix: GW RCRA
Page 15 of 33
DF
Method
Analysis Date/Time
Analyst
1
EPA 9056A
09/24/2025 08:52
BGN9034
1
EPA 9056A
09/24/2025 08:52
BGN9034
1
EPA 9056A
09/24/2025 08:52
BGN9034
1
EPA 9056A
09/24/2025 08:52
BGN9034
1
EPA 9056A
09/24/2025 08:52
BGN9034
1
EPA 7470A
10/01/2025 07:31
SNEGLIA
1
SW 601OD
09/29/2025 15:26
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 6010D
09/29/2025 17:14
DDAUZVA
1
SW 601OD
09/29/2025 17:14
DDAUZVA
1
SW 6020B
09/29/2025 17:45
MHALL3
1
SW 6020B
09/29/2025 17:45
MHALL3
1
SW 6020E
09/29/2025 17:45
MHALL3
1
SW 6020B
09/29/2025 17:45
MHALL3
1
SW 6020B
09/29/2025 17:45
MHALL3
1
SW 6020E
09/29/2025 17:45
MHALL3
1
SW 6020B
09/29/2025 17:45
MHALL3
1
SW 6020E
09/29/2025 17:45
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LF-SW-2
Collection Date: 09/23/2025 09:40 AM Loc code: ASV LF-SW-2
Analyte
Result
Units Qualifiers
RDL
MDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q25090503
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)
0.073 J
ug/L
1
0.0403
1
Chromium (Cr)
0.36 J
ug/L
1
0.2894
1
Cobalt (Co)
0.354 J
ug/L
1
0.1287
1
Copper (Cu)
1.23
ug/L
1
0.1994
1
Lead (Pb)
0.0579 U
ug/L
1
0.0579
1
Molybdenum (Mo)
0.272 J
ug/L
1
0.1066
1
Nickel (Ni)
0.202 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)
0.1119 U
ug/L
1
0.1119
1
TOTAL DISSOLVED SOLIDS - Q25090527
TDS
46.0
mg/L
25
25
1
Sample #: 2025023315
Matrix: GW RCRA
Page 16 of 33
Method
Analysis Date/Time
Analyst
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SW 6020B
10/01/2025 18:27
MHALL3
SW 6020E
10/01/2025 18:27
MHALL3
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LF-SW-3
Collection Date: 09/23/2025 12:50 PM Loc code: ASV LF-SW-3
Analyte
Result
Units
Qualifiers RDL
MDL
INORGANIC IONS BY IC - Q25090456
Chloride
8.3
mg/L
0.1
0.015
Fluoride
0.05 J
mg/L
0.1
0.04
Nitrate
0.56
mg/L
0.1
0.04
Nitrate as N
0.13
mg-N/L
0.023
0.002
Sulfate
3.9
mg/L
0.1
0.041
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
0.05
0.01
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
- Q25090494
Zinc (Zn)
0.0011 U
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.014
mg/L
0.005
0.0011
Boron (B)
0.017 J
mg/L
0.05
0.0046
Calcium (Ca)
4.57
mg/L
0.05
0.0124
Iron (Fe)
0.030
mg/L
0.01
0.0033
Lithium (Li)
0.0027 U
mg/L
0.005
0.0027
Magnesium (Mg)
1.71
mg/L
0.02
0.0039
Manganese (Mn)
0.004 J
mg/L
0.005
0.0007
Total Hardness (Ca and Mg)
18.4
mg/L
0.19
(CaCO3)
Zinc (Zn)
0.0011 U
mg/L
0.015
0.0011
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q25090501
Beryllium (Be)
0.3106 U
ug/L
1
0.3106
Cadmium (Cd)
0.0403 U
ug/L
1
0.0403
Chromium (Cr)
0.2894 U
ug/L
1
0.2894
Copper (Cu)
1.07
ug/L
1
0.1994
Lead (Pb)
0.0579 U
ug/L
1
0.0579
Nickel (Ni)
0.21 J
ug/L
1
0.1004
Selenium (Se)
0.2052 U
ug/L
1
0.2052
Silver (Ag)
0.0521 U
ug/L
1
0.0521
Sample #: 2025023316
Matrix: GW RCRA
Page 17 of 33
DF
Method
Analysis Date/Time
Analyst
1
EPA 9056A
09/24/2025 09:08
BGN9034
1
EPA 9056A
09/24/2025 09:08
BGN9034
1
EPA 9056A
09/24/2025 09:08
BGN9034
1
EPA 9056A
09/24/2025 09:08
BGN9034
1
EPA 9056A
09/24/2025 09:08
BGN9034
1
EPA 7470A
10/01/2025 07:33
SNEGLIA
1
SW 601OD
09/29/2025 15:30
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 6010D
09/29/2025 17:18
DDAUZVA
1
SW 601OD
09/29/2025 17:18
DDAUZVA
1
SW 6020B
09/29/2025 17:50
MHALL3
1
SW 6020B
09/29/2025 17:50
MHALL3
1
SW 6020E
09/29/2025 17:50
MHALL3
1
SW 6020B
09/29/2025 17:50
MHALL3
1
SW 6020B
09/29/2025 17:50
MHALL3
1
SW 6020E
09/29/2025 17:50
MHALL3
1
SW 6020B
09/29/2025 17:50
MHALL3
1
SW 6020E
09/29/2025 17:50
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV LF-SW-3
Collection Date: 09/23/2025 12:50 PM Loc code: ASV LF-SW-3
Analyte
Result
Units Qualifiers
RDL
MDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q25090503
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)
0.314 J
ug/L
1
0.2894
1
Cobalt (Co)
0.1287 U
ug/L
1
0.1287
1
Copper (Cu)
0.5 J
ug/L
1
0.1994
1
Lead (Pb)
0.0579 U
ug/L
1
0.0579
1
Molybdenum (Mo)
0.124 J
ug/L
1
0.1066
1
Nickel (Ni)
0.17 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)
0.122 J
ug/L
1
0.1119
1
TOTAL DISSOLVED SOLIDS - Q25090527
TDS
35.0
mg/L
25
25
1
Sample #: 2025023316
Matrix: GW RCRA
Page 18 of 33
Method
Analysis Date/Time
Analyst
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SW 6020B
10/01/2025 18:35
MHALL3
SW 6020E
10/01/2025 18:35
MHALL3
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV_FD-20250923-2 Duplicate
Collection Date: 09/23/2025 Loc code: ASV FD
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090456
Chloride
3.3
mg/L
Fluoride
0.04 U
mg/L
Nitrate
2.3
mg/L
Nitrate as N
0.51
mg-N/L
Sulfate
380
mg/L
MERCURY (COLD VAPOR) IN WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.054
mg/L
Boron (B)
0.0046 U
mg/L
Calcium (Ca)
121
mg/L
Iron (Fe)
0.028
mg/L
Lithium (Li)
0.0027 U
mg/L
Magnesium (Mg)
32.8
mg/L
Manganese (Mn)
0.039
mg/L
Zinc (Zn)
0.0011 U
mg/L
TOTAL RECOVERABLE METALS BY ICP-MS -
Q25090503
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)
0.371 J
ug/L
Cobalt (Co)
0.1287 U
ug/L
Copper (Cu)
0.87 J
ug/L
Lead (Pb)
0.0579 U
ug/L
Molybdenum (Mo)
0.458 J
ug/L
Nickel (Ni)
0.351 J
ug/L
Selenium (Se)
0.339 J
ug/L
Silver (Ag)
0.0521 U
ug/L
Thallium (TI) Low Level
0.0326 U
ug/L
Vanadium (V)
0.178 J
ug/L
TOTAL DISSOLVED SOLIDS -
025090527
TDS 660 mg/L
Sample #: 2025023318
Matrix: GW RCRA
Page 19 of 33
Method Analysis Date/Time Analyst
1
0.015
10
EPA 9056A
09/24/2025 07:31
BGN9034
1
0.04
10
EPA 9056A
09/24/2025 07:31
BGN9034
1
0.04
10
EPA 9056A
09/24/2025 07:31
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 07:31
BGN9034
10
0.041
100
EPA 9056A
09/24/2025 07:31
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:36
SNEGLIA
0.005
0.0011
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.05
0.0046
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.5
0.0124
10
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.01
0.0033
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.005
0.0027
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.02
0.0039
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.005
0.0007
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
0.015
0.0011
1
SW 601 OD
10/06/2025 09:49
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.168
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 18:43
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 18:43
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 18:43
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 18:43
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 18:43
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 18:43
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 18:43
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 18:43
MHALL3
25
25
1
SM2540C
09/26/202514:35
LELL107

Certificate of Laboratory Analysis Page 20 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Site: ASV FB-20250923-1530 Field Blank Sample #: 2025023319
Collection Date: 09/23/2025 03:30 PM Loc code: ASV QA Matrix: GW RCRA
Analyte Result Units Qualifiers RDL MDL DF
INORGANIC IONS BY IC - Q25090456
Chloride
0.015 U
mg/L
Fluoride
0.04 U
mg/L
Nitrate
0.04 U
mg/L
Nitrate as N
0.002 U
mg-N/L
Sulfate
0.041 U
mg/L
MERCURY (COLD VAPOR) IN
WATER - Q25100001
Mercury (Hg)
0.03 J
ug/L
TOTAL RECOVERABLE METALS BY ICP - Q25090496
Barium (Ba)
0.0011 U
mg/L
Boron (B)
0.0046 U
mg/L
Calcium (Ca)
0.016 J
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 -
Q25090503
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
09/24/2025 07:15
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:15
BGN9034
0.1
0.04
1
EPA 9056A
09/24/2025 07:15
BGN9034
0.023
0.002
1
EPA 9056A
09/24/2025 07:15
BGN9034
0.1
0.041
1
EPA 9056A
09/24/2025 07:15
BGN9034
0.05
0.01
1
EPA 7470A
10/01/2025 07:38
SNEGLIA
0.005
0.0011
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.05
0.0046
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.05
0.0124
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.01
0.0033
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.005
0.0027
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.02
0.0039
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.005
0.0007
1
SW 601OD
09/29/2025 16:01
DDAUZVA
0.015
0.0011
1
SW 601OD
09/29/2025 16:01
DDAUZVA
1
0.1259
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.168
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.3106
1
SW 6020E
10/01/2025 18:52
MHALL3
1
0.0403
1
SW 6020E
10/01/2025 18:52
MHALL3
1
0.2894
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.1287
1
SW 6020E
10/01/2025 18:52
MHALL3
1
0.1994
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.0579
1
SW 6020E
10/01/2025 18:52
MHALL3
1
0.1066
1
SW 6020E
10/01/2025 18:52
MHALL3
1
0.1004
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.2052
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.0521
1
SW 6020E
10/01/2025 18:52
MHALL3
0.2
0.0326
1
SW 6020B
10/01/2025 18:52
MHALL3
1
0.1119
1
SW 6020E
10/01/2025 18:52
MHALL3
Qualifiers:
J Analyte detected above the MDL, but below the RL. Analyte concentration should be considered an estimate.

Certificate of Laboratory Analysis Page 21 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25100005 ALK CarbBicarb TOTAL ALKALINITY
Duplicate # 1
Parameter Measured
Final
Alkalinity, Bicarbonate
451
Alkalinity, Carbonate
0
Total Alkalinity as CaCO3
451
LCS # 1
Parameter Measured
Final
Total Alkalinity as CaCO3
101
Parent Sample: J25090317 -- 2025023313
Units
Dil
MDL
RPD Qualifier
mg/L
1
1.7
2.74
mg/L
1
1.7
0
mg/L
1
1.7
2.74
Units
Dil
MDL
S Ike % Recovery LCL UCL Qualifier
mg/L
1
1.7
98.7 102 85 115

Certificate of Laboratory Analysis Page 22 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090455 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
0
mg/L
1
0.041
0.1
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
5.08
5.08
mg/L
1
0.015
5
102
80
120
Fluoride
4.78
4.78
mg/L
1
0.04
5
95.6
80
120
Nitrate
5.17
5.17
mg/L
1
0.04
5
103
80
120
Sulfate
5.04
5.04
mg/L
1
0.041
5
101
80
120
MS # 1
Parent Sample:
J25090317 -- 2025023304
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
2.71
13.5
mg/L
5
0.015
5
99.7
80
120
Fluoride
4.92
4.92
mg/L
1
0.04
5
97.7
80
120
Nitrate
5.5
5.5
mg/L
1
0.04
5
102
80
120
Sulfate
5.43
5.43
mg/L
1
0.041
5
102
80
120
MSD # 1
Parent Sample:
J25090317 -- 2025023304
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Qualifier
Chloride
2.72
13.6
mg/L
5
0.015
5
101
80
120
0.589
Fluoride
4.91
4.91
mg/L
1
0.04
5
97.7
80
120
0.0407
Nitrate
5.33
5.33
mg/L
1
0.04
5
98.9
80
120
3.18
Sulfate
5.47
5.47
mg/L
1
0.041
5
103
80
120
0.844

Certificate of Laboratory Analysis Page 23 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090456 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
0
mg/L
1
0.041
0.1
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
5.11
5.11
mg/L
1
0.015
5
102
80
120
Fluoride
4.86
4.86
mg/L
1
0.04
5
97.2
80
120
Nitrate
5.14
5.14
mg/L
1
0.04
5
103
80
120
Sulfate
4.97
4.97
mg/L
1
0.041
5
99.5
80
120
MS # 1
Parent Sample:
J25090317 -- 2025023311
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Qualifier
Chloride
2.61
13.1
mg/L
5
0.015
5
98.4
80
120
Fluoride
4.92
4.92
mg/L
1
0.04
5
97.4
80
120
Nitrate
5.17
5.17
mg/L
1
0.04
5
101
80
120
Sulfate
6.33
6.33
mg/L
1
0.041
5
100
80
120
MSD # 1
Parent Sample:
J25090317 -- 2025023311
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD
Qualifier
Chloride
2.6
13
mg/L
5
0.015
5
97.9
80
120
0.192
Fluoride
4.94
4.94
mg/L
1
0.04
5
97.9
80
120
0.446
Nitrate
5.19
5.19
mg/L
1
0.04
5
102
80
120
0.309
Sulfate
6.39
6.39
mg/L
1
0.041
5
101
80
120
0.975

Certificate of Laboratory Analysis Page 24 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25100001 HG 7470 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter
Measured
Final
Mercury (Hg)
0.016
0.016
Blank # 2
Parameter
Measured
Final
Mercury (Hg)
0.02
0.02
Blank # 3
Parameter
Measured
Final
Mercury (Hg)
0.017
0.017
Blank # 4
Parameter
Measured
Final
Mercury (Hg)
0.018
0.018
Blank # 5
Parameter
Measured
Final
Mercury (Hg)
0.019
0.019
LCS # 1
Parameter
Measured
Final
Mercury (Hg)
2.04
2.04
LCS # 2
Parameter
Measured
Final
Mercury (Hg)
2.04
2.04
LCS # 3
Parameter Measured Final
Mercury (Hg) 2.05 2.05
MS # 1
Parameter
Measured
Final
Mercury (Hg)
1.02
1.02
MSD # 1
Parameter
Measured
Final
Mercury (Hg)
0.956
0.956
MS # 2
Parameter Measured Final
Mercury (Hg) 1.04 1.04
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
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
102 85
115
Units
Dil
MDL
Spike
% Recover v LCL
UCL
Qualifier
ug/L
1
0.01
2
102 85
115
Units
Dil
MDL
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
0.01
2
103 85
115
Parent Sample: J25080196 -- 2025019977
Units
Dil
MDL
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
0.01
1
99.6 75
125
Parent Sample: J25080196 -- 2025019977
Units
Dil
MDL
Spike
% Recovery LCL
UCL RPD
Qualifier
ug/L
1
0.01
1
93.4 75
125 6.42
Parent Sample: J25080196 -- 2025019988
Units
Dil
MDL
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
0.01
1
102 75
125

Certificate of Laboratory Analysis Page 25 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25100001 HG 7470 MERCURY (COLD VAPOR) IN WATER
MSD # 2
Parent Sample:
J25080196 -- 2025019988
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
1.02
1.02
ug/L
1
0.01
1
100
75 125 1.58
MS # 3
Parent Sample:
J25090317 -- 2025023312
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
0.984
0.984
ug/L
1
0.01
1
95.7
75 125
MSD # 3
Parent Sample:
J25090317 -- 2025023312
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
1.02
1.02
ug/L
1
0.01
1
99.1
75 125 3.49
MS # 4
Parent Sample:
J25090436 -- 2025023863
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
0.987
0.987
ug/L
1
0.01
1
96.4
75 125
MSD # 4
Parent Sample:
J25090436 -- 2025023863
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
0.974
0.974
ug/L
1
0.01
1
95.1
75 125 1.36
MS # 5
Parent Sample:
J25090436 -- 2025023873
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL
Qualifier
Mercury (Hg)
0.983
0.983
ug/L
1
0.01
1
95.6
75 125
MSD # 5
Parent Sample:
J25090436 -- 2025023873
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL UCL RPD
Qualifier
Mercury (Hg)
0.991
0.991
ug/L
1
0.01
1
96.4
75 125 0.833

Certificate of Laboratory Analysis Page 26 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090494 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
LCS # 1
Parameter Measured Final
Zinc (Zn)-0.00404-0.00404
Parameter Measured Final
Zinc (Zn) 5.07 5.07
LCSD # 1
Parameter Measured Final
Zinc (Zn) 4.97 4.97
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 5 101 80 120
Units Dil MDL Spike % Recovery LCL UCL
mg/L 1 0.0011 5 99.5 80 120
Qualifier
Qualifier
RPD Qualifier
1.81

Certificate of Laboratory Analysis Page 27 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090496 ICP_TRM TOTAL RECOVERABLE METALS BY 1CP
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Barium (Ba)
0.000101
0.000101
mg/L
1
0.0011
0.005
< MDL
Boron (B)
-0.00294
-0.00294
mg/L
1
0.0046
0.05
< MDL
Calcium (Ca)
0.0177
0.0177
mg/L
1
0.0124
0.05
> MDL
Iron (Fe)
-0.00111
-0.00111
mg/L
1
0.0033
0.01
< MDL
Lithium (Li)
-0.000557
-0.000557
mg/L
1
0.0027
0.005
< MDL
Magnesium (Mg)
-0.00254
-0.00254
mg/L
1
0.0039
0.02
< MDL
Manganese (Mn)
-0.000326
-0.000326
mg/L
1
0.0007
0.005
< MDL
Potassium (K)
0.00376
0.00376
mg/L
1
0.0119
0.1
< MDL
Sodium (Na)
0.0137
0.0137
mg/L
1
0.0132
0.05
> MDL
Zinc (Zn)
-0.0041
-0.0041
mg/L
1
0.0011
0.015
< MDL
LCS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Barium (Ba)
4.85
4.85
mg/L
1
0.0011
5
97
80
120
Boron (B)
4.99
4.99
mg/L
1
0.0046
5
96.5
80
120
Calcium (Ca)
4.94
4.94
mg/L
1
0.0124
5
98.8
80
120
Iron (Fe)
4.9
4.9
mg/L
1
0.0033
5
98
80
120
Lithium (Li)
4.96
4.96
mg/L
1
0.0027
5
99.3
80
120
Magnesium (Mg)
5.09
5.09
mg/L
1
0.0039
5
103
80
120
Manganese (Mn)
5.08
5.08
mg/L
1
0.0007
5
102
80
120
Potassium (K)
5
5
mg/L
1
0.0119
5
100
80
120
Sodium (Na)
4.87
4.87
mg/L
1
0.0132
5
97.4
80
120
Zinc (Zn)
5.1
5.1
mg/L
1
0.0011
5
102
80
120
MS # 1
Parent Sample:
J25090317
-- 2025023304
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Barium (Ba)
4.85
4.85
mg/L
1
0.0011
5
96.5
75
125
Boron (B)
4.99
4.99
mg/L
1
0.0046
5
96.6
75
125
Calcium (Ca)
14
14
mg/L
1
0.0124
5
98.8
75
125
Iron (Fe)
4.9
4.9
mg/L
1
0.0033
5
97.5
75
125
Lithium (Li)
4.96
4.96
mg/L
1
0.0027
5
99.1
75
125
Magnesium (Mg)
9.43
9.43
mg/L
1
0.0039
5
101
75
125
Manganese (Mn)
5.06
5.06
mg/L
1
0.0007
5
101
75
125
Potassium (K)
7.85
7.85
mg/L
1
0.0119
5
99.8
75
125
Sodium (Na)
11.9
11.9
mg/L
1
0.0132
5
104
75
125
Zinc (Zn)
5.04
5.04
mg/L
1
0.0011
5
101
75
125
MSD # 1
Parent Sample:
J25090317
-- 2025023304
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL RPD
Barium (Ba)
4.82
4.82
mg/L
1
0.0011
5
95.9
75
125 0.558
Qualifier
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 28 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090496 ICP_TRM TOTAL RECOVERABLE METALS BY 1CP
MSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Boron (B)
4.96
4.96
mg/L
1
0.0046
Calcium (Ca)
14.1
14.1
mg/L
1
0.0124
Iron (Fe)
4.86
4.86
mg/L
1
0.0033
Lithium (Li)
4.91
4.91
mg/L
1
0.0027
Magnesium (Mg)
9.5
9.5
mg/L
1
0.0039
Manganese (Mn)
5.02
5.02
mg/L
1
0.0007
Potassium (K)
7.84
7.84
mg/L
1
0.0119
Sodium (Na)
11.9
11.9
mg/L
1
0.0132
Zinc (Zn)
4.99
4.99
mg/L
1
0.0011
Parent Sample:
J25090317 -- 2025023304
Spike
% Recovery
LCL
UCL
RPD
5
95.8
75
125
3.96
5
100
75
125
0.554
5
96.8
75
125
0.799
5
98.1
75
125
1.01
5
102
75
125
2.75
5
100
75
125
0.794
5
99.5
75
125
0.14
5
104
75
125
0.335
5
99.8
75
125
0.837
Qualifier

Certificate of Laboratory Analysis Page 29 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090501 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)
-0.026
-0.026
ug/L
1
0.3106
1
< MDL
Cadmium (Cd)
0.003
0.003
ug/L
1
0.0403
1
< MDL
Chromium (Cr)
-0.073
-0.073
ug/L
1
0.2894
1
< MDL
Copper (Cu)
-0.006
-0.006
ug/L
1
0.1994
1
< MDL
Lead (Pb)
-0.049
-0.049
ug/L
1
0.0579
1
< MDL
Nickel (Ni)
0
0
ug/L
1
0.1004
1
< MDL
Selenium (Se)
-0.028
-0.028
ug/L
1
0.2052
1
< MDL
Silver (Ag)
0.002
0.002
ug/L
1
0.0521
1
< MDL
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL Qualifier
Beryllium (Be)
46
46
ug/L
1
0.3106
50
92.1
80
120
Cadmium (Cd)
48.2
48.2
ug/L
1
0.0403
50
96.4
80
120
Chromium (Cr)
48.4
48.4
ug/L
1
0.2894
50
96.8
80
120
Copper (Cu)
48.5
48.5
ug/L
1
0.1994
50
96.9
80
120
Lead (Pb)
48.8
48.8
ug/L
1
0.0579
50
97.7
80
120
Nickel (Ni)
47.3
47.3
ug/L
1
0.1004
50
94.6
80
120
Selenium (Se)
47.5
47.5
ug/L
1
0.2052
50
95.1
80
120
Silver (Ag)
49.2
49.2
ug/L
1
0.0521
50
98.3
80
120
LCSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
RPD Qualifier
Beryllium (Be)
47.9
47.9
ug/L
1
0.3106
50
95.7
80
120
3.87
Cadmium (Cd)
48.6
48.6
ug/L
1
0.0403
50
97.2
80
120
0.814
Chromium (Cr)
48.8
48.8
ug/L
1
0.2894
50
97.7
80
120
0.855
Copper (Cu)
48.7
48.7
ug/L
1
0.1994
50
97.4
80
120
0.527
Lead (Pb)
49.1
49.1
ug/L
1
0.0579
50
98.2
80
120
0.553
Nickel (Ni)
48
48
ug/L
1
0.1004
50
96
80
120
1.5
Selenium (Se)
47.1
47.1
ug/L
1
0.2052
50
94.2
80
120
0.877
Silver (Ag)
49.4
49.4
ug/L
1
0.0521
50
98.8
80
120
0.501

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090503 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units
Dil
MDL
RDL
Relative Concentration
Antimony (Sb)
0.037
0.037
ug/L
1
0.1259
1
< MDL
Arsenic (As)
0.009
0.009
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)
0.06
0.06
ug/L
1
0.2894
1
< MDL
Cobalt (Co)
0
0
ug/L
1
0.1287
1
< MDL
Copper (Cu)
0.007
0.007
ug/L
1
0.1994
1
< MDL
Lead (Pb)
0.002
0.002
ug/L
1
0.0579
1
< MDL
Molybdenum (Mo)
0.007
0.007
ug/L
1
0.1066
1
< MDL
Nickel (Ni)
0.02
0.02
ug/L
1
0.1004
1
< MDL
Selenium (Se)
0.017
0.017
ug/L
1
0.2052
1
< MDL
Silver (Ag)
0.001
0.001
ug/L
1
0.0521
1
< MDL
Thallium (TI) Low Level
0.006
0.006
ug/L
1
0.0326
0.2
< MDL
Vanadium (V)
0.006
0.006
ug/L
1
0.1119
1
< MDL
LCS # 1
Page 30 of 33
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recover v
LCL
UCL
Antimony (Sb)
54.5
54.5
ug/L
1
0.1259
50
109
80
120
Arsenic (As)
51.7
51.7
ug/L
1
0.168
50
103
80
120
Beryllium (Be)
51.9
51.9
ug/L
1
0.3106
50
104
80
120
Cadmium (Cd)
51.2
51.2
ug/L
1
0.0403
50
102
80
120
Chromium (Cr)
49.4
49.4
ug/L
1
0.2894
50
98.9
80
120
Cobalt (Co)
51.6
51.6
ug/L
1
0.1287
50
103
80
120
Copper (Cu)
51.3
51.3
ug/L
1
0.1994
50
103
80
120
Lead (Pb)
52.4
52.4
ug/L
1
0.0579
50
105
80
120
Molybdenum (Mo)
50.1
50.1
ug/L
1
0.1066
50
100
80
120
Nickel (Ni)
51.5
51.5
ug/L
1
0.1004
50
103
80
120
Selenium (Se)
51.3
51.3
ug/L
1
0.2052
50
103
80
120
Silver (Ag)
50.4
50.4
ug/L
1
0.0521
50
101
80
120
Thallium (TI) Low Level
49.2
49.2
ug/L
1
0.0326
50
98.4
80
120
Vanadium (V)
49.9
49.9
ug/L
1
0.1119
50
99.8
80
120
MS # 1
Parent Sample:
J25090317
-- 2025023305
Parameter
Measured
Final
Units
Dil
MDL
Spike
% Recovery
LCL
UCL
Antimony (Sb)
54.4
54.4
ug/L
1
0.1259
50
109
75
125
Arsenic (As)
51.7
51.7
ug/L
1
0.168
50
103
75
125
Beryllium (Be)
53.7
53.7
ug/L
1
0.3106
50
107
75
125
Cadmium (Cd)
51.8
51.8
ug/L
1
0.0403
50
104
75
125
Chromium (Cr)
50.8
50.8
ug/L
1
0.2894
50
100
75
125
Cobalt (Co)
51.7
51.7
ug/L
1
0.1287
50
103
75
125
Qualifier
Qualifier
Qualifier

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090503 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Copper (Cu)
51.4
51.4
ug/L
1
0.1994
50
Lead (Pb)
53.1
53.1
ug/L
1
0.0579
50
Molybdenum (Mo)
50.6
50.6
ug/L
1
0.1066
50
Nickel (Ni)
52.1
52.1
ug/L
1
0.1004
50
Selenium (Se)
51.5
51.5
ug/L
1
0.2052
50
Silver (Ag)
50.2
50.2
ug/L
1
0.0521
50
Thallium (TI) Low Level
49.9
49.9
ug/L
1
0.0326
50
Vanadium (V)
51
51
ug/L
1
0.1119
50
MSD # 1
Parameter
Measured
Final
Units
Dil
MDL
Spike
Antimony (Sb)
55
55
ug/L
1
0.1259
50
Arsenic (As)
52.2
52.2
ug/L
1
0.168
50
Beryllium (Be)
54
54
ug/L
1
0.3106
50
Cadmium (Cd)
52.1
52.1
ug/L
1
0.0403
50
Chromium (Cr)
51.1
51.1
ug/L
1
0.2894
50
Cobalt (Co)
52.4
52.4
ug/L
1
0.1287
50
Copper (Cu)
52
52
ug/L
1
0.1994
50
Lead (Pb)
52.6
52.6
ug/L
1
0.0579
50
Molybdenum (Mo)
51.2
51.2
ug/L
1
0.1066
50
Nickel (Ni)
52.2
52.2
ug/L
1
0.1004
50
Selenium (Se)
51.9
51.9
ug/L
1
0.2052
50
Silver (Ag)
50.6
50.6
ug/L
1
0.0521
50
Thallium (TI) Low Level
49.1
49.1
ug/L
1
0.0326
50
Vanadium (V)
51.3
51.3
ug/L
1
0.1119
50
Page 31 of 33
Parent Sample: J25090317 -- 2025023305
% Recovery
LCL
UCL
102
75
125
106
75
125
101
75
125
103
75
125
103
75
125
100
75
125
99.8
75
125
101
75
125
Parent Sample: J25090317 -- 2025023305
% Recovery
LCL
UCL
RPD
110
75
125
1.22
104
75
125
1.07
108
75
125
0.496
104
75
125
0.654
101
75
125
0.617
104
75
125
1.29
104
75
125
1.21
105
75
125
1.03
102
75
125
1.12
103
75
125
0.19
104
75
125
0.789
101
75
125
0.837
98.1
75
125
1.74
102
75
125
0.583
Qualifier
Qualifier

Certificate of Laboratory Analysis Page 32 of 33
This report shall not be reproduced, except in full.
Order # J25090317
Level II QC Summary
Q25090527 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter Measured Final
TDS -0.2
Duplicate # 1
Parameter Measured Final
TDS 388
LCS # 1
Parameter Measured Final
TDS 465
Units
Dil
MDL
RDL
Relative Concentration
mg/L
1
25
25
< MDL
Parent Sample: J25080039 -- 2025019514
Units
Dil
MDL
RPD
mg/L
1
25
0.258
Units
Dil
MDL
Spike
% Recovery LCL UCL
mg/L
1
25
500
93 90 110
Qualifier
Qualifier
Qualifier

CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
Duke Energy Analytical Laboratory i i
Analytical LaboratoryUse OnlyrF'aL�e
J of Jl_
DUKEMail Co, MG03A2leuo"ne7be) i iOrder# J25090317
Matrix WATER a.nWe.owxnwaFrwe
scx
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DISTRIBUTION
ENERGY unt Hall NFerry Rd ; ;
Nunte�vlila, N. C. 2307e
Date a Ti
SAMPLE PROGRAM
i
ORIGINAL t0 LAB, COPY (0 CLIENT
i �LeOaad By �
e{)87ss24!
�� � O�
Ground Watef_X_
NPOES
l_._._._._._._._._._._._._._._._._. ._._._._._. Faa:.L1011 a76301a-_-_-_-_-_--I
Project Name ASHEVILLE CCR LANDFILL PERMIT Pnone No: !Vendor
# 1119-INDUS-2020
1•
cool let Tom c
._.._.._.._._.._.._.._.._.._..e.l_l._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._..—.._.._.-_-._-._.._.._.._.-_..
Drinking Water_
RCf2A Waste
UST_
Client ASHLEY HEALY, BRYAN MOELLER, DEE !Po a
i
Filtration (0.45 um) 4
Unfiltered
b Filtered
O'BRIEN, JOSH STOWE, CONNOR ZAHORA
i
Operating Unit: AE00 Process:NGRDWTR Account: i
Preservative
ICE
ICE
ICE
rr
i._.._.._.._.._.._.-_.._.._.._.._.._.._.._.._.._.._.._.._.-_.._.._.._.._.
Project: AAE000315 Activity to: Facility ID:ASV
_'
Container Volume (mL)
Soo
250
300
500
250
Program IEOuiS Task Code: ASV Sub-ProgremfTask Code:
Container Type
HDPE
PET
PET
PET
HDPE
CCRILF
(Metals Prep - TRM) I
CI, F
SW6 010D
y
(ICP - SW 6010D) Be, B.
,
NO3-N
Zn I SW
°
Customer to complete all appropriate non -snarled areas m rc
Ca, Fe, Li, Mg, Mn, Zn
(8)1 Hg (SW 7470A) I
-E
(48-Hr
TDS
60208 Be,
c
Sample Description or ID
p p
IMS - SW 60208 Sb,
( )
r� 5
Hold
cd, Cr, Cu,
Pb, Ni, Se,
r.._.._.._-._.-_.-_-.�
SAMPLE ID i
Collection Information o.
As, Be, Cd, Cr, Co, Cu.
Pb, Mo, Ni, Se, Ag,
— m
w
Time ,
)
SO4
Ag
_
3
i NUMBER
Data
Time
E ^
Printed Name Signature u r;
TI LL V 14
x
c O
F
i 2025023304
ASV LMW-16
17-ZS-15
13i0
�L Z
N,YOAW&#tA
x
1
1
1
3
1306
x
1
1
1
3
305;
ASV LMWAS
1Z%
x
1
1
1
3
306.
ASV LMW-2B
307!
ASV LMW-2T
17-60
x
1
1
1
3
i
jIZS
x
1
1
1
3
308!•
ASV LMW-3B
309!
ASV LMW 48
1010
x
1
1
1
3
-+
%�%�
x
1
1
1
3
i 310!
ASV CB-9
1355
1-1
311:
ASV CB-9BR
1Hto
x
1
1
1
3
3121
ASV CB-9SL
14S5
x
1
1
1
3
313!
ASV LCS-1
1 O1 V
x
1
1
1
1
4
314!Syy,q_
_
-x
4
#
t
t
! 315i
ASV LF-SW-2
0940
aA*VA- yFH0�l1
x
1
1
1
1
a
—�
i 3161
ASV LFSW-3
(Z.50
x
1
1
1
1
4
317
csL
-
dF
t
a-
i-
r
4-
x
1
1
14
3
318!.
ASV FD ' 20750"-Z -L
q-23 ZS
-
C4,NAP041L 2IHe?A
x
1
1
1
3
! 319!
ASV FB-2U25O1123-1530
1530
x
1
1
2
i 320i
y
r
�r
Customer to signsigna, date below
Relinquished By DatelTime
% 5N(i
Accepted By:
Date/Time
/ ,f]
y
„
Requested Turnaround
O
w
21 Day s
Relinquished By DateRime
Accepted By: Date/Tim
9
/
� la
m �
m 0
o-
.. E
14 Days X
Relinquished By DatelTime
Accepts By: DatefT a
c
�
0 m
•7 Days
SeallLocked By DatelTime
SealedlLock Opened By DatelTime
Ci w
_v
�v
m
m
'Other
Comments
EOUIS EDO Required include Total Hardness for LF-SW-1, -2, -3, DP-4
2026 Program Note: Add K, Na. Alk(CarblBicarb) to LCS-1 only.
�
U
•Add. Cost Will Apply