Marshall Pilot Test WP w Cvr Ltr 6-22-20

DUKE
ENERGY®
June 22, 2020
Mr. Andrew Pitner, P.G.
North Carolina Department of Environmental Quality
Water Quality Regional Operations Section
Division of Water Resources
Mooresville Regional Office
610 East Center Avenue, Suite 201
Mooresville, North Carolina 28115
Subject: Pilot Test Work Plan — Groundwater Corrective Action Implementation
Duke Energy Carolinas, LLC
Marshall Steam Station
Terrell, NC 28682
Mr. Pitner,
526 South Church St
Mail Code: EC12J
Charlotte, NC 28202
On December 31, 2019, Duke Energy Carolinas LLC (Duke Energy) submitted a Corrective
Action Plan (CAP) Update Report to address the Marshall Steam Station (or Site) Ash Basin
and associated additional source areas. The CAP Update included a robust groundwater
remediation system with extraction and clean water infiltration wells and associated treatment.
On February 10, 2020, Duke Energy received a letter from the North Carolina Department of
Environmental Quality (NCDEQ) approving the commence of a pilot test for five facilities,
including the Marshall Steam Station. The letter included a request for the submittal of a Pilot
Test Work Plan for review. Attached is the Pilot Test Work Plan for the Marshall Steam Station
Corrective Action Plan Remediation System.
Implementation of the groundwater CAP will be conducted in a phased approach, with an
initial pilot test phase implemented within key areas of the Site. The pilot test will be used to
accelerate the corrective action process to meet applicable groundwater standards, to
optimize the full-scale corrective action system performance by using adaptive design
methods based on data collected during the pilot test, and will focus on the most challenging
areas of the Site, thereby driving the near -term corrective action progress towards achieving
the appliable standards. Currently, up to 24 clean water infiltration wells and up to 66
extraction wells are proposed for the full-scale system based on groundwater modeling
simulations completed as part of the CAP Update. As part of the pilot test phase, up to eight
clean water infiltration wells will be installed at select locations throughout the Site, along with
up to 32 groundwater extraction wells. The attached Pilot Test Work Plan presents a
description of the pilot test activities, along with a summary of the data collection and analysis
that will be used to refine design parameters such as well performance, flow rates, area of
hydraulic influence, and well spacing.
BUILDING A SMARTER ENERGY FUTURE''"

Pilot Test Work Plan — Groundwater Corrective Action Implementation
Marshall Steam Station
June 22, 2020
Per the NCDEQ's suggestion, Duke Energy plans to set up a follow-up meeting to address any
questions or comments. If you have any immediate questions, please contact Ms. Tyler Hardin
at [e-mail].
Sincerely,
F5--
Scott E. Davies, P.G.
Project Director
cc: Brandy Costner, NCDEQ Division of Water Resources, Mooresville Regional Office
Steve Lanter, NCDEQ Division of Water Resources, Central Office
Eric Smith, NCDEQ Division of Water Resources, Central Office
Elizabeth Werner, NCDEQ Division of Waste Management
Tyler Hardin, Duke Energy
Andrew Davis, Arcadis
Attachments
Pilot Test Work Plan — Groundwater Corrective Action Implementation
BUILDING A SMARTER ENERGY FUTURE'""

ARCADIS llesign &Consultancy
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('DUKE
ENERGY.
PILOT TEST WORK PLAN
Groundwater Corrective Action Implementation
Marshall Steam Station, North Carolina
June 2020

PILOT TEST WORK PLAN
Scott Bostian, PE
Senior Environmental Engineer
North Carolina PE No. 25659
Andrew Davis
Certified Project Manager
Michael FI ischner,.PE
Technical Expert �--
PILOT TEST WORK
PLAN
Groundwater Corrective Action
Implementation
Prepared for:
Scott Davies
Project Director
Duke Energy
526 South Church Street
Mail Code EC12J
Charlotte, NC 28202
Prepared by:
Arcadis G&M of North Carolina, Inc.
Wade 1
5420 Wade Park Boulevard
Suite 350
Raleigh
North Carolina 27607
Tel [phone]
Fax [phone]
Our Ref:
30051038.0003
Date:
June 22, 2020
This document is intended only for the use of
the individual or entity for which it was
prepared and may contain information that is
privileged, confidential and exempt from
disclosure under applicable law. Any
dissemination, distribution or copying of this
document is strictly prohibited.
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PILOT TEST WORK PLAN
CONTENTS
Acronyms and Abbreviations
1 Introduction..............................................................................................................................1-1
1.1 Regulatory Framework......................................................................................................1-1
1.2 Work Plan Objectives........................................................................................................1-2
2 Project Description...................................................................................................................2-1
2.1 Conceptual Site Model......................................................................................................2-1
2.2 Corrective Action Plan.......................................................................................................2-2
2.3 Selected Remedy Design Overview...................................................................................2-2
3 Pilot Test Data Collection Objectives.........................................................................................3-1
4 Pilot Test Implementation Activities............................................................................................4-1
4.1 Pilot Test Basis of Design..................................................................................................4-1
4.1.1 Clean Water Infiltration Source.......................................................................................4-1
4.1.2 Extracted Water Disposition...........................................................................................4-2
4.1.3 Mechanical Systems/Pumps/Storage..............................................................................4-2
4.1.3.1 Modular Systems...................................................................................................4-2
4.1.3.2 Groundwater Extraction Infrastructure.....................................................................4-2
4.1.3.3 Clean Water Infiltration Infrastructure......................................................................4-3
4.1.4 Conveyance..................................................................................................................4-3
4.1.5 Electrical.......................................................................................................................4-4
4.2 Pilot Test Implementation..................................................................................................4-4
4.2.1 Well Installation Activities...............................................................................................4-4
4.2.1.1 Saprolite, Transition Zone, and Bedrock Extraction Well
Installation ..........................4-4
4.2.1.2 Bedrock Zone Extraction Well Installation................................................................4-5
4.2.1.3 Clean Water Infiltration Well Installation...................................................................4-6
4.2.1.4 Well Development..................................................................................................4-6
4.2.1.5 Investigation -Derived Waste...................................................................................4-6
4.2.2 System Installation Activities..........................................................................................4-7
4.2.2.1 Conveyance..........................................................................................................4-7
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4.2.2.2 Modular Systems...................................................................................................4-7
4.2.2.3 Mechanical............................................................................................................4-7
4.2.2.4 Electrical...............................................................................................................4-8
4.2.3 Pilot Test Monitoring Plan..............................................................................................4-8
4.2.4 Permit Requirements...................................................................................................4-11
4.3 Pilot Test Implementation Schedule.................................................................................4-12
5 References..............................................................................................................................5-1
6 Certification..............................................................................................................................6-1
TABLES
3-1 Data Collection Objectives
4-1 Pilot Test Basis of Design Summary
4-2 Proposed Pilot Well Construction Details
4-3 Monitoring Plan Summary
FIGURES
1-1 Site Location
1-2 Area Proposed for Corrective Action
2-1 Slope Aquifer System
2-2 Full -Scale Design Layout
4-1 Pilot Test Layout
4-2 Extraction System Process Flow Diagram
4-3 Clean Water Infiltration System Process Flow Diagram
4-4 Saprolite/Transition Zone/Bedrock Extraction Well Construction Details
4-5 Bedrock Extraction Well Construction Details
4-6 Clean Water Infiltration Well Construction Details
4-7 Monitoring Locations
APPENDICES
A Intake Water Analytical Results
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ACRONYMS AND ABBREVIATIONS
02L
NCAC, Title 15A, Subchapter 02L, Groundwater Classification and Standards
BTV
background threshold values
CAP
Corrective Action Plan
COI
Constituent(s) of Interest
CSM
Conceptual Site Model
Duke Energy
Duke Energy Carolinas, LLC
EMP
Effectiveness Monitoring Plan
ft
feet
gpm
gallon per minute
G.S.
General Statutes
HDPE
high -density polyethylene
HDR
HDR Engineering
IDW
investigation -derived waste
IMAC
Interim Maximum Allowable Concentrations
MEC
modular extraction control
MGD
million gallons per day
MIC
modular infiltration control
NCAC
North Carolina Administrative Code
NCDEQ
North Carolina Department of Environmental Quality
NPDES
National Pollutant Discharge Elimination System
NTU
nephelometric turbidity units
PFD
process flow diagram
PVC
polyvinyl chloride
Site
Marshall Steam Station
SynTerra
SynTerra Corporation
TDS
total dissolved solids
UIC
Underground Injection Control
Work Plan
Pilot Test Work Plan
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PILOT TEST WORK PLAN
1 INTRODUCTION
Arcadis, on behalf of Duke Energy Carolinas, LLC (Duke Energy) has prepared this Pilot Test Work
Plan (Work Plan) as the first step in implementing the groundwater Corrective Action Plan (CAP) Update
for the Marshall Steam Station (the Site) (SynTerra Corporation [SynTerra] 2019), located on the west
bank of Lake Norman on NC Highway 150 E near the town of Terrell, Catawba County, North Carolina
(Figure 1-1). The groundwater CAP Update was submitted to the North Carolina Department of
Environmental Quality (NCDEQ) on December 31, 2019. The NCDEQ approved the pilot test approach
in a letter to Duke Energy dated February 10, 2020 (NCDEQ 2020a).
The CAP Update included provisions for a robust groundwater remediation program that consisted of
groundwater extraction wells combined with clean water infiltration wells and associated treatment.
The purpose of this Work Plan is to present the details of the planned groundwater pilot test that will
be completed as part of the full-scale corrective action implementation for the Site. The system will
be implemented to address concentrations of constituents of interest (COI) in groundwater greater
than applicable standards at or beyond the Geographic Limitation. The Geographic Limitation, defined
as a boundary 500 feet (ft) from the Ash Basin waste boundary, or the property line or surface water body
if within 500 ft, is shown on Figure 1-2.
For the pilot test described herein, groundwater extraction and clean water infiltration wells will be located
as follows:
• Twenty-three groundwater extraction wells downgradient and adjacent to the Phase I Dry Ash
Landfill Area;
• Nine groundwater extraction wells, including three wells southeast of the Phase I Dry Ash Landfill
and west of Lake Norman and six wells along the Ash Basin dam for hydraulic testing during the
pilot test and extraction during subsequent implementation phase; and
• Eight clean water infiltration wells downgradient and adjacent to the Phase I Dry Ash
Landfill Area.
Groundwater will be extracted, treated, and conveyed to permitted Outfall 002. Infiltration water will be
supplied from a new intake structure to be installed in Lake Norman. Infiltration water will be pumped into
clean water infiltration wells in and around the COI -affected groundwater area for groundwater restoration
and enhanced cleanup via the principles of the selected corrective action. The areas of proposed
groundwater corrective action are shown on Figure 1-2.
1.1 Regulatory Framework
This Work Plan is aligned with the CAP, Parts 1 and 2 (HDR Engineering [HDR] 2015 and 2016),
and with the CAP Update (SynTerra 2019). These CAP documents address the requirements of
Section 130A-309.21 1 (b) of the North Carolina General Statutes (G.S.) as amended by Coal Ash
Management Act of 2014. The CAP Update is also consistent with North Carolina Administrative
Code (NCAC) Title 15A, Subchapter 02L.0106 corrective action requirements. The CAP guidance
was also provided by NCDEQ via letter correspondence with Duke Energy and was used to prepare
the CAP Update report for the Site (NCDEQ 2019).
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The CAP Update evaluated corrective actions for COI in groundwater associated with the Ash Basin
and adjacent areas (SynTerra 2019). Specifically, the CAP Update focused on constituents detected
at concentrations greater than the applicable North Carolina groundwater standards [NCAC, Title 15A,
Subchapter 02L, Groundwater Classification and Standards (02L); Interim Maximum Allowable
Concentrations (IMAC); or background threshold values (BTVs), whichever is greater] at or beyond
the Geographic Limitation, or as closely thereto as is economically and technologically feasible,
consistent with 15A NCAC 02L .0106(a). The Geographic Limitation for the Site was established under
a Consent Order that resolved outstanding coal ash matters with the NCDEQ dated February 5, 2020
(NCDEQ 2020b). The NCDEQ approved Duke Energy's request to implement the pilot test program
described herein in a letter dated February 10, 2020 (NCDEQ 2020a). Additional source control activities
are being executed in accordance with the Consent Order (NCDEQ 2020b).
1.2 Work Plan Objectives
This Work Plan presents a description of the pilot test activities, along with a summary of the data
collection and analysis that will be used to refine design parameters such as well performance, flow rates,
area of hydraulic influence, and well spacing. Design modifications from the pilot test will be applied to the
full-scale system, as necessary, to optimize full-scale system performance.
The objectives for the pilot test include:
• Accelerate the corrective action process to meet applicable groundwater standards;
• Optimize the full-scale corrective action system performance by using adaptive design methods
based on data collected during the pilot test; and
• Focus the pilot test on the most challenging areas at the Site, thereby driving the near -term
corrective action progress towards achieving the above -referenced standards.
The overall success of the pilot test will be based on the ability of the data generated to:
• Confirm that the model predictions presented in the CAP Update (SynTerra 2019) adequately
represent the actual conditions encountered,
• Support the full-scale system design and implementation to achieve the groundwater remedial
objectives, and
• Demonstrate that implementing the full-scale system will contribute to the reduction of
COI concentrations within the remedial timeframe.
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2 PROJECT DESCRIPTION
The following sections summarize the Conceptual Site Model (CSM) and the CAP and provide an
overview of the selected groundwater corrective action design.
2.1 Conceptual Site Model
A robust CSM was developed for the Site, which was detailed and presented in the CAP Update
(SynTerra 2019). The Site is located in the Piedmont Physiographic Province and is part of the Carolina
Slate Belt (North Carolina Geologic Survey 1985). The groundwater in the area of the Site is divided into
three interconnected hydrostratigraphic zones:
• The shallow flow zone in soils and saprolite (referred to in this Work Plan as saprolite zone);
• The transition flow zone (referred to as "deep" in some previous reports); and
• The bedrock flow zone.
The natural hydrogeologic framework at the Site is consistent with the regolith-fractured rock system and
is characterized with an unconfined, interconnected groundwater system characteristic of the Piedmont
Physiographic Province. The LeGrand Slope Aquifer System model (Figure 2-1) applies to the Site
(LeGrand 1988, 1989; Harned and Daniel 1992), as discussed in the CAP Update (SynTerra 2019).
As part of the CAP Update, a comprehensive evaluation of COI mobility and distribution were completed
and incorporated as the COI Management Plan (SynTerra 2019). The COI across groundwater flow
zones were evaluated with respect to their presence within ash pore water, concentrations relative to
BTVs, existence of concentrations greater than regulatory limits downgradient of the Ash Basin and
additional adjacent source areas, and geochemical mobility. Based on this process, 17 COI exhibited
mean concentrations greater than the applicable standard (BTVs, 02L standards, or IMACs)
downgradient of the Ash Basin at or beyond the Geographic Limitation, including: antimony, barium,
beryllium, boron, chloride, cobalt, iron, lithium, manganese, molybdenum, selenium, strontium, sulfate,
thallium, total dissolved solids (TDS), total radium, and vanadium (SynTerra 2019). Constituent
concentrations in COI -affected groundwater associated with the Ash Basin and additional adjacent source
areas have been characterized as stable to decreasing, and groundwater with COI concentrations greater
than COI criteria is contained within Duke Energy's property.
Additional key conclusions of the CSM from the CAP Update (SynTerra 2019) include the following:
• No material increases in risk to human health related to the Ash Basin and adjacent source areas
have been identified.
• The Ash Basin and adjacent source areas do not increase risk to ecological receptors.
• Groundwater from the Ash Basin and additional adjacent source areas has not and does not flow
toward any water supply wells.
• The hydrogeologic setting of the Site limits COI transport.
• The physical setting and hydraulic processes control COI flow pattern within the Site, underlying
groundwater system, and downgradient areas.
• Horizontal distribution of COI in groundwater east of the Ash Basin is limited spatially.
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• Geochemical processes stabilize and limit certain constituent migration along the flow path.
• Groundwater/surface water interaction has not caused and is not predicted to cause COI at
concentrations greater than NCAC, Title 15A Subchapter 02B, Surface Water and Wetland
Standards in Lake Norman.
• The aquatic systems (unnamed tributary and Lake Norman) adjacent to the Site are healthy
based on multiple lines of evidence including robust fish populations, species variety and other
indicators derived from years of sampling data.
These CSM aspects, combined with the updated human health and ecological risk assessments, provide
the basis for the CAP developed for the Ash Basin and adjacent source areas.
2.2 Corrective Action Plan
The CAP Update was prepared using available site data through May 2019, and a list of the reports
used is included in the CAP Update (SynTerra 2019). Table ES-2 in the CAP Update provides a
summary of the data types collected during the comprehensive site assessment and CAP processes.
This information, in conjunction with modeling, was used to develop and refine the CSM summarized
above (SynTerra 2019). Subsequently, this data -driven approach was used to identify and select the
groundwater corrective action approach consistent with the NCDEQ's CAP content guidance.
As discussed above and in the CAP Update, the approach for corrective action at the Site includes the
following components:
• Source Control consisting of Ash Basin excavation and capping, some existing on -site landfills
and structural fills;
• Groundwater Corrective Action; and
• An Effectiveness Monitoring Plan (EMP).
The CAP Update evaluated multiple groundwater corrective action technologies for potential use in
the development of comprehensive groundwater corrective action alternatives (SynTerra 2019).
Each groundwater corrective action technology was assessed based on its effectiveness in addressing
one or more Site -specific COI, and its effectiveness and feasibility for implementation under Site -specific
conditions. Criteria from the NCDEQ CAP Guidance were included in the corrective action alternative
screening process (NCDEQ 2019).
Groundwater modeling simulations were performed to evaluate the effectiveness of the alternatives
and to develop the most effective approach. See Appendices G and H in the CAP Update
(SynTerra 2019) for these modeling reports. Modeling results indicate that groundwater extraction
combined with clean water infiltration will most effectively achieve the corrective action objectives
detailed in the CAP Update (SynTerra 2019).
2.3 Selected Remedy Design Overview
As stated above, groundwater extraction and clean water infiltration was determined to be the most
appropriate corrective action approach based on evaluation of alternative corrective action approaches
compared to NCDEQ decision criteria. The intent of the extraction and clean water infiltration system is to
address migration of COI -affected groundwater at or beyond the Geographic Limitation. The CAP Update
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fate and transport modeling predicts that the clean water infiltration wells will help to address potential
COI in the vadose zone, which might otherwise contribute to exceedance of applicable 02L standards
in the saturated zone beyond the Geographic Limitation. The full-scale groundwater extraction and clean
water infiltration corrective action planned for implementation is shown on Figure 2-2. Currently,
66 extraction wells and 24 clean water infiltration wells are proposed for the full-scale system.
Groundwater modeling simulations indicate that compliance with 02L applicable standards can be
achieved within nine years of operation (SynTerra 2019). To achieve these results, model -predicted
groundwater extraction rates are 652 gallons per minute (gpm) (0.94 million gallons per day [MGD])
and model -predicted infiltration rates are 285 gpm (0.41 MGD). The intent of the pilot study is to confirm
that these rates are appropriate and provide data to design a full-scale implementation to achieve the
corrective action objectives. To that end, the locations and depths of proposed wells as well as the
extraction and injection rates are subject to modification based on results of pilot test and full-scale
implementation using adaptive design principles.
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3 PILOT TEST DATA COLLECTION OBJECTIVES
The overall goal of the pilot test is to generate the data needed to verify and refine the design and
operation of the full-scale groundwater corrective action system. The pilot test areas were identified
based on site -specific conditions including challenging COI areas, subsurface conditions, plant
infrastructure, and Site features such as Lake Norman. Pilot test wells will target the saprolite, transition,
and bedrock zones. The final design adaptation and refinement based on pilot test results will ensure that
full-scale corrective action objectives are achieved.
The objectives for the pilot test, outlined in Section 1.2 and in Table 3-1, were developed to address the
following two primary decision statements:
1) Are the number of extraction and clean water infiltration wells, spatial configuration, and testing
capacity sufficient to achieve the full-scale corrective action design objectives?
2) Are critical COI areas and affected groundwater zones responding to the corrective action?
Data collection will focus on performance monitoring to verify conceptual design details, including
sustainable well capacities, hydraulic influence and connectivity of extraction and clean water infiltration
wells, and corrective action effectiveness at reducing COI concentrations.
The decision inputs consist of the four components listed below, and the data collection results will be
integrated to evaluate overall corrective action design effectiveness. The COI concentration data
collection is planned during the pilot test, and groundwater monitoring locations are included within the
data collection approach. As detailed in Section 4 and shown in Table 3-1, data collection during the pilot
test will focus on the following:
1) Well Capacity — During development of the newly installed extraction and clean water infiltration
wells, specific capacity (flow rate divided by drawdown) will be analyzed to select a group of
extraction and clean water infiltration wells for further hydraulic testing, based on the range of
specific capacity values respective of groundwater zone and spatial locations of testing.
Short-term pumping and/or infiltration tests with three to four successively higher flow rates
(step testing) may be performed at the selected group of extraction and clean water infiltration
wells to better understand the baseline well capacity ranges.
2) Area of Hydraulic Influence and Connectivity — Data will be collected within areas of extraction
and clean water infiltration well installation (focus areas) and select hydraulic testing areas.
Data collection will include measurements of water levels, water quality parameters, stable
isotopes, and major ions. The data will be evaluated to verify hydraulic parameters (depending
on location, this will include transmissivity, storativity, and surface water effects), horizontal and/or
vertical hydraulic gradient control (hydraulic influence), and influence of clean water infiltration
(pore volume exchange).
3) COI Concentration Reduction — COI concentration data from historical and pilot test monitoring
results will be utilized to evaluate COI concentration trends and to estimate concentration
reduction achieved by hydraulic influence and/or pore volume exchange.
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4) Hydroge000gy Verification and Constructability — Data will be collected during the pilot test to
verify subsurface conditions and to test well constructability. These data will be used to adjust the
full-scale extraction well and/or clean water infiltration well design locations with (a) hydrogeologic
data: collect, compile, and evaluate lithologic depths and thicknesses to verify subsurface
conditions; and (b) construction data: identify and compile extent of utilities and areas of
inaccessibility.
The data collected during this pilot test, according to these objectives, will be used to evaluate the original
design assumptions and effectiveness of the corrective action. Together, this information will be used to
refine the number, configuration, and operational assumptions for the corrective action wells for the
full-scale design.
A more detailed site -specific pilot test monitoring plan will be submitted to the NCDEQ prior to pilot test
implementation. This monitoring plan will include details regarding such items as sampling frequency,
parameter list, and well locations that will be used to determine the effectiveness of the pilot test program.
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4 PILOT TEST IMPLEMENTATION ACTIVITIES
This section describes the pilot test design and implementation activities that will be conducted to meet
the data collection objectives described in Section 3, including well system components (clean water
infiltration source, extraction water management, mechanical systems [pumps and electrical]),
conveyance, extraction and clean water infiltration well installation, and data collection. Details are also
provided on the hydrogeologic basis for the pilot test installation areas, start-up activities, and permitting.
Duke Energy will utilize an adaptive management approach for full-scale implementation of the selected
corrective action.
4.1 Pilot Test Basis of Design
The pilot test design incorporates approximately 45 percent of the full-scale system and includes
combined extraction and clean water infiltration components within key COI -affected groundwater areas
(Figure 4-1 and Table 4-1). The pilot test design includes 32 extraction wells (23 wells connected to the
extraction system and nine wells for hydraulic testing only), and eight clean water infiltration wells.
Extraction well locations are presented on Figure 4-1. Groundwater flow and transport modeling suggest
site -related COI extend from the saprolite into the bedrock flow zone, with a vertical hydraulic connection
through the hydrostratigraphic units.
Design and construction details for pilot test extraction and clean water infiltration wells are provided in
Table 4-2. Extraction wells in the vicinity of the Phase I Dry Ash Landfill area are screened in both the
saprolite/transition and the bedrock zones. The clean water infiltration wells are designed to include
screen intervals that target and extend within the saprolite and transition zones. Select extraction wells
are targeted for installation across the all three of the interconnected hydrostratigraphic zones. Deeper
bedrock extraction wells targeted for installation in the area southeast of the Phase I Dry Ash Landfill and
along the Ash Basin Dam are designed as open borehole in the target extraction interval with a
contingency to install a screened well if the borehole is not stable.
4.1.1 Clean Water Infiltration Source
Clean infiltration water will be obtained for the pilot test from a new water intake located in Lake Norman,
southeast of the Ash Basin (Figure 4-1). A Duke Energy Lake Services Conveyance Permit will be
obtained for the construction of the intake structure. Water from the new intake structure will be conveyed
via underground piping to a modular treatment system and pre-treated (filtration, ultraviolet treatment)
to reduce the potential for well fouling. Analytical data for a representative sample of intake water is
summarized in Appendix A. An underground injection control (UIC) permit application for the clean water
will be submitted to the NCDEQ and must be approved prior to initiating clean water infiltration activities.
The modular treatment system will be sized to treat up to 0.96 million gallons per day (approximately
667 gpm) with water being used for both the infiltration system and as a water source for dust
suppression activities. Water used for dust suppression will be taken directly from the intake structure
with no pre-treatment required.
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4.1.2 Extracted Water Disposition
The extracted groundwater will be transferred from the pilot test area to the existing Ash Basin decant
treatment system. Treatment of the recovered groundwater is proposed to be completed at this existing
system location, which will be upgraded to account for the additional flow from the extraction system.
The location of the existing Ash Basin decant treatment system is shown on Figure 4-1. Following
treatment, the extracted groundwater will be discharged to National Pollutant Discharge Elimination
System (NPDES) Outfall 002. In preparation for the additional treated water, a NPDES permit
modification was submitted on April 29, 2020 to increase the permitted discharge to 3 million gallons
per day.
4.1.3 Mechanical Systems/Pumps/Storage
A brief description of each mechanical system is included in the following sections. A process flow
diagram (PFD) highlighting major system components is provided as Figure 4-2 (extraction system)
and Figure 4-3 (clean water infiltration system).
4.1.3.1 Modular Systems
The modular extraction control (MEC) and modular infiltration control (MIC) systems and clean infiltration
water treatment system will be constructed within Conex boxes or enclosures, measuring approximately
20 to 40 ft in length by 8 to 10 ft in width by 8.5 ft in height. Each of the system enclosures will be
equipped with a small sump in which a float switch can be installed. In the event of a leak within the
enclosures, water will collect within the sump, activating the float switch and shutting down the entire
MEC or MIC systems.
4.1.3.2 Groundwater Extraction Infrastructure
Each groundwater extraction well will be equipped with an electric submersible pump. The pumps will
be water level controlled using an in -well switch or float. Extracted groundwater will be conveyed from
the individual extraction wells to an MEC system where it will be manifolded together (Figure 4-2).
The extraction manifold will include necessary instrumentation and appurtenances for each well, including
a totalizing flowmeter (to monitor extracted volume and extraction flow rates from each individual well),
a check valve to prevent backflow into the wells, a ball valve to isolate piping for maintenance, a sample
port for each individual well, and a pressure indicator/transmitter. A float switch will be installed within
each extraction well vault. The float switch will primarily function to identify a high-water level condition
within the vaults, typically a result of a leak or pipe damage.
After manifolding together, the combined influent stream will enter an equalization tank. The equalization
tank allows for the mixing of extracted groundwater from individual extraction wells resulting in
homogenization of COI concentrations and groundwater geochemical properties (e.g., pH, dissolved
oxygen, oxygen -reduction potential, and alkalinity). This mixing of extracted groundwater will provide
a more predictable and consistent water quality and flow rate to the existing Ash Basin decant treatment
system, as compared to the potential range of COI concentrations and groundwater geochemical
properties from individual groundwater extraction wells. Transfer pumps will operate based on the
equalization tank level and will draw extracted groundwater from the equalization tank and discharge
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to the existing Ash Basin decant system onsite. The transfer pumps will be operated based upon
equalization tank level, as well as the ability of the system to accept flow (Figure 4-2).
Each system will be equipped with remote monitoring capabilities. These remote monitoring capabilities
will allow the system operator to monitor operational parameters such as extraction flow rates and
totalized extraction volumes. Critical alarms or malfunctions (such as accumulation of water in the well
vault) will be transmitted via a telemetry system.
4.1.3.3 Clean Water Infiltration Infrastructure
Clean water for infiltration will be pumped from the newly constructed Lake Norman intake structure and
processed through the pre-treatment system prior to storage in an equalization tank. Infiltration water will
be treated with a combination of filtration and ultraviolet treatment (Figure 4-3). Water that will be used
for dust suppression will not be treated but will be pumped directly to a second equalization tank to be
used for storage. Prior to use, the infiltration water will meet the requirements set forth in the UIC permit.
The MIC will distribute the treated water through the infiltration manifold to each individual clean water
infiltration well. Totalizing flowmeters installed on the manifold legs will measure flow rate and volume
of water distributed to each clean water infiltration well. Other appurtenances associated with the clean
water infiltration wells will include valves and instrumentation to control infiltration pressure at each clean
water infiltration well location. Model -predicted infiltration rates for the full-scale system are 285 gpm
(0.41 MGD) and 96 gpm (0.14 MGD) for the pilot test system. Infiltration rates at each well are
expected to vary but are anticipated to be approximately 12 gpm based on the modeling completed.
Target infiltration flow rates are included on Table 4-1; however, actual flow rates will be based on
the ability of each clean water infiltration well to accept flow at a pressure that will not adversely impact
the subsurface through the creation of preferential pathways.
Each well will be fitted with a leak -tight seal at the top of the well through which the infiltration pipe, air
vent, and pressure transducer will enter the well. A ball valve (air release valve) at the top of the well will
allow water to displace the air in the well and system piping at initial startup and following any prolonged
system shutdowns. Infiltration pressures will be monitored at each clean water infiltration well to allow for
the optimization of flow rates. Monitoring pressures will also provide an indicator of significant fouling
occurring within the clean water infiltration well network, if fouling occurs. A float switch will be installed
within each clean water infiltration well vault. The float switch will primarily function to identify a high-water
level condition within the vaults potentially resulting from a leak, pipe damage or failure of the well vault
seal preventing infiltration of surface water.
Operational parameters, such as clean water infiltration flow rates, totalized infiltration volumes, and well
head pressure; as well as critical alarms or malfunctions (such as accumulation of water in the well vault)
will be transmitted to the corrective action system operators via a telemetry system.
4.1.4 Conveyance
Each extraction well will be individually piped underground to a manifold located inside the MEC with
2-inch diameter high density polyethylene (HDPE) piping. Individual piping runs are proposed for each
well to increase the control and monitoring of recovered groundwater. One MEC, an extraction pump
station, and one equalization tank are proposed for the pilot test (Figure 4-1). After groundwater has
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been processed by the MEC, the water will be conveyed through an underground 6-inch diameter
HDPE pipe to the existing Ash Basin decant system.
Water from Lake Norman will be conveyed to the clean infiltration water treatment system through
an estimated 8-inch diameter HDPE pipe (size and materials of construction are subject to change
based on design and permitting process). Infiltration water will be transferred from the clean water
infiltration pre-treatment system to the MIC through an underground 6-inch diameter HDPE pipe.
Each infiltration well will be individually piped from the MIC manifold to the wells with 2-inch diameter
HDPE piping (Figure 4-3).
4.1.5 Electrical
Based on the large scale of the pilot test, additional electrical capacity will be required to meet the
power requirements of the pilot test infrastructure (e.g., pumps, instrumentation, and treatment system
components). Coordination with Duke Energy personnel for the power supply to the pilot system is
in process.
4.2 Pilot Test Implementation
Implementation of the pilot test will incorporate the design elements discussed above with on -the -ground
installation and construction, coupled with permitting, start-up, and a data collection program intended to
address the objectives from Section 3 and facilitate scaling up to the full-scale design.
4.2.1 Well Installation Activities
Prior to drilling, utilities (buried and exposed) will be located and marked using both a private utility
locator (via electromagnetic, ground penetrating radar, and/or vacuum extraction) and the North Carolina
One -Call Center (NC 811). All extraction and clean water infiltration wells will be installed in accordance
with applicable North Carolina Subchapter 2C Well Construction Standards (NCDENR 2009) state rules
and regulations by a North Carolina licensed well driller. The licensed well driller will be responsible for
issuing required well construction records to the NCDEQ. A qualified environmental professional will be
present during well installation activities to log subsurface conditions and to guide well construction based
on the subsurface conditions encountered at each corrective action well location. The extraction and
clean water infiltration well construction details are included in Table 4-2.
4.2.1.1 Saprolite, Transition Zone, and Bedrock Extraction Well Installation
Extraction wells EX-11SBR through EX-22SBR and EX-56SBR through EX-66SBR will be installed
and screened in the saprolite, transition zone, and bedrock. They will be drilled using rotary drilling
methods (i.e., rotosonic, hollow stem auger/mud rotary, and/or air rotary), with a minimum 10-inch
diameter borehole through the saprolite and transition zone, extending approximately 10 ft into competent
bedrock. Competent bedrock will be identified by rock fragments that display little to no weathering and
are prominently angular. The drill tooling used to drill through the saprolite and transition zone will be left
in place, and the borehole will be continued at 9 7/8-inch diameter using air rotary methods (Figure 4-4).
Well boreholes will be straight and plumb and drilled in such a manner as not to induce or transfer any
potentially affected media into the hole. Upon reaching the targeted hydrologic zone, the extraction wells
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will be constructed of 6-inch diameter Schedule 80 polyvinyl chloride (PVC) well casing connected to
10 ft of 0.010-inch slotted wire wrapped 304 stainless -steel screen. The bottom of the screen will be fitted
with blank casing approximately 3-feet in length, with a bottom cap to serve as a sump. The saprolite,
transition zone, and bedrock extraction well construction details are included on Figure 4-4.
Stainless -steel casing centralizers or guides will be installed for wells greater than 50 ft in total depth
to maintain separation between the well casing and borehole to allow for the passage of filter sand,
bentonite, and tremie pipe for grout. The annular space around the well screen will be backfilled with
an appropriate sand pack to a minimum of two feet above the top of the well screen. The remaining
annular space above the filter pack will be backfilled with hydrated bentonite pellets or chips to generate
a minimum 2-ft thick bentonite seal. The remaining space will be filled with Portland Type 1/11 neat cement
grout to the ground surface. The tooling used to drill through the saprolite and transition zone will be
removed as neat cement is added to ensure proper placement.
Because these wells are located in the Dry Ash Landfill Area and will be connected to the Pilot System,
they will be completed at the surface with a 2-ft by 2-ft, H-20 traffic -rated well vault with a bolt -down lid.
Wells installed for hydraulic testing only in the pilot phase will have aboveground outer well steel casing
with lockable lids installed during the pilot test. Well vaults will be installed during the subsequent phase
of implementation.
4.2.1.2 Bedrock Zone Extraction Well Installation
Bedrock extraction wells installed only within the bedrock zone (EX-35BR, EX-37BR, EX-38BR,
EX-41 BR, EX-42BR, EX-45BR, EX-46BR, EX-52BR, and EX-53BR) will be drilled via a combination
of rotary drilling methods with a 14-inch borehole through the saprolite and transition zone, with a
conductor casing extending approximately 10 ft into competent bedrock. Competent bedrock will
be identified by rock fragments that display little to no weathering and are prominently angular.
A 10-inch schedule 80 PVC conductor casing will be installed in the borehole and grouted in place with
Portland Type 1/II neat cement and allowed to cure for at least 24 hours. After curing, drilling will resume
inside the outer casing via air rotary and a 9 7/8-inch borehole will be advanced to the target depth.
Bedrock extraction wells will be installed as open -borehole wells where bedrock conditions are stable
and unlikely to collapse. The bedrock extraction well construction details are included on Figure 4-5.
Bedrock extraction wells will be installed as open -borehole wells where bedrock conditions are stable and
unlikely to collapse. If the bedrock geological conditions are not stable enough for an open borehole well,
the bedrock well may be converted to a screened extraction well. The screened bedrock extraction wells
will be constructed of 6-inch diameter Schedule 80 PVC well casing connected to 10 ft of 0.010-inch
slotted wire wrapped 304 stainless -steel screen beginning 10 ft below the conductor casing. The bottom
of the screen will be fitted with blank casing approximately 3 ft in length with a bottom cap to serve as a
sump. For wells greater than 50 ft in total depth, stainless -steel casing centralizers or guides will be
installed to maintain separation between the well casing and borehole to allow for the passage of filter
sand, bentonite, and tremie pipe for grout. The annular space around the well screen will be backfilled
with an appropriate sand pack to a minimum of 2 ft above the top of the well screen. A 2-ft thick bentonite
seal will be installed above the sand pack with hydrated bentonite chips or pellets. The annular space
above the bentonite seal will be filled with Portland Type 1/II neat cement grout up to the ground surface.
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Wells installed for hydraulic testing in the pilot phase will have aboveground outer well steel casing with
lockable lids installed during the pilot test. Well vaults will be installed during the subsequent phase of
implementation.
4.2.1.3 Clean Water Infiltration Well Installation
Clean water infiltration wells will be installed in the saprolite and transition zones via rotary drilling
methods (i.e., rotosonic and/or hollow stem auger/mud rotary) with a 10-inch borehole diameter.
Well boreholes will be straight and plumb and drilled in such a manner to not induce or transfer any
potentially affected media into the hole. Clean water infiltration well diagrams are included as Figure 4-6.
The clean water infiltration wells will be constructed of 6-inch diameter Schedule 80 PVC well casing
connected to 0.010-inch slotted wire wrapped 304 stainless -steel screen. The estimated screen length
for each clean water infiltration well is approximately 25 ft; however, the installed screen length at each
well will be determined based on field conditions encountered during the installation process. The bottom
of the screen will be fitted with blank casing approximately 1 ft in length, with a bottom cap to serve as a
sump. For wells greater than 50 ft in total depth, stainless -steel casing centralizers or guides will be
installed to maintain separation between the well casing and borehole to allow for the passage of filter
sand, secondary sand pack seal, and tremie pipe for grout. The annular space around the well screen
will be backfilled with an appropriate sand pack to a minimum of 2 ft above the top of the well screen.
A secondary sand pack, consisting of approximately 2 ft of very fine sand overlain by 2 ft of fine sand, will
be placed in the annular space above the main sand filter pack. The annular space above the sand pack
will be filled with Portland Type 1/11 neat cement grout up to ground surface. Clean water infiltration wells
will be completed at the surface with a traffic rated flush mount vault.
4.2.1.4 Well Development
Each well or open borehole will be developed no sooner than 48 hours after well completion.
Development will be completed using surging, jetting, and/or pumping. Wells will first be surged and
pumped for approximately two hours to remove sediment and other material from the well. After the initial
pumping, field parameters including pH, specific conductivity, temperature, and turbidity will be monitored
to establish natural conditions and to evaluate whether the well has been completely developed.
The main criterion for well development will be clear water and nephelometric turbidity units (NTU) of
less than 10. If turbidity of 10 NTU is not achievable, well development will be complete when turbidity
has stabilized. Additional well development may be completed if field data indicate inadequate
performance of extraction wells.
4.2.1.5 Investigation -Derived Waste
Investigation -derived waste (IDW) may be managed onsite as allowed by applicable regulations, permits,
and Duke Energy approval. If no appropriate onsite disposal area is available, the IDW generated
during well installation activities will be containerized in either 55-gallon drums or roll -off boxes.
These containers will be labeled and stored in an on -site location identified by Duke Energy personnel.
Groundwater generated during well installation and development will be containerized and managed in
two 20,000-gallon frac tanks located near the well site. All investigation -derived waste will be disposed of
at an approved off -site facility after waste characterization is completed.
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4.2.2 System Installation Activities
Prior to implementation activities, Duke Energy will procure a qualified contractor with the appropriate
licenses to obtain required permits and complete construction. The work described below will be
conducted in accordance with Occupational Safety and Health Administration health and safety
procedures specified in Title 29 Code of Federal Regulations. The equipment and infrastructure provided
for the pilot test will be sized for the full-scale system. The following sections describe the system
installation activities.
4.2.2.1 Conveyance
As discussed in Section 4.1.4, individual pipelines will be run from the MEC and MIC system manifolds
to the individual extraction and clean water infiltration wells. The proposed conveyance piping routes are
included on Figure 4-1.
The installation method for the conveyance piping will be open cut trenching. Each trench will contain
HDPE Standard Diameter Ratio 11 conveyance piping, electrical conduit, and tracer wire or magnetic
tracer tape to facilitate locating the pipe upon completion of construction activities. Buried conveyance
piping will be sized to account for flows associated with the full-scale system. A portion of the extraction
conveyance piping, adjacent to the emergency spillway, will include secondary containment due to its
location close to a surface water body, as well as NPDES Outfall 007.
4.2.2.2 Modular Systems
The modular systems are proposed to be constructed offsite by a selected equipment contractor and
brought onsite for placement within the pilot test areas. Piping appurtenances and instrumentation for
each individual extraction well (e.g., flowmeters, pressure gauges, isolation valves, flow control valves,
and check valves) will be installed within the MECs to expedite data collection efforts and to facilitate
maintenance activities (by localizing work) during operation and maintenance visits. Installing the
appurtenances and instrumentation within the weathertight enclosures will also extend their lifetime.
4.2.2.3 Mechanical
The submersible pumps installed within the 23 active (connected to the MEC) extraction wells will
be controlled by a level switch or float installed within each well. The MEC system transfer pumps will
be mounted on triplex pump skids to reduce maintenance requirements and to provide redundancy to
reduce potential system downtime. The transfer pumps will be controlled by the water level in the
equalization tank. System transfer pumps will be sized to account for future expansion/ implementation
of the full-scale system. The proposed pilot test design includes three transfer pump skids, one for each
system enclosure (one for the extraction system and two for the infiltration system (treatment and MIC).
The clean water infiltration pre-treatment system will include a pair of dual pump skids to provide lake
water to treatment and to provide dust suppression water to a dust suppression tank.
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4.2.2.4 Electrical
As discussed above, the electric service for the treatment systems and associated infrastructure will be
coordinated with the Duke Energy personnel. System power requirements will be finalized to allow
sufficient time to upgrade the existing power supply in the vicinity of the pilot test work.
The groundwater corrective action system will be managed using a telemetry system that will enable
remote monitoring and operational capabilities. Prior to continuous operation treatment system alarms
and interlocks will be confirmed functional.
4.2.3 Pilot Test Monitoring Plan
Performance monitoring will be completed during the installation of extraction and clean water infiltration
wells and operation activities in accordance with the data collection objectives (see Section 3 and
Table 3-1). The performance monitoring plan is designed in relation to Site features such as critical
COI -affected groundwater areas, proximity to coal ash units, and hydrologic boundaries (Lake Norman)
to provide a comprehensive dataset. The data collected will be evaluated using a lines -of -evidence
approach for understanding hydraulic influence, hydraulic connectivity, and COI reduction.
Groundwater samples will be collected from select monitoring wells at a frequency that is estimated to be
every one -to -three months during the duration of the pilot test. Field parameters will be measured during
groundwater sampling and groundwater samples will be analyzed for COI concentrations (including
antimony, barium, beryllium, boron, chloride, cobalt, iron, lithium, manganese, molybdenum, selenium,
strontium, sulfate, thallium, TDS, total radium, and vanadium). Historical and current COI concentration
data will be used as a baseline. Groundwater COI concentration data collected during the pilot test
operation will be compared to baseline COI concentrations.
Subsurface data collected during installation of the extraction and clean water infiltration wells will be
compiled for verification of subsurface conditions (lithology depths and thicknesses). In addition, the
extent of utilities and areas of inaccessibility will be updated. Updated subsurface conditions data will
provide information to support refinement of the full-scale design well locations and targeted well depths.
The areas of focus for monitoring within the pilot test system operation and specific areas for hydraulic
testing have been selected along with a comprehensive set of parameters detailed in the following section
and presented in Table 4-3 and on Figure 4-7. Pilot test data will be collected following the sampling
procedures previously approved by NCDEQ for ash basin groundwater assessment. As stated in
Section 3, a more detailed site -specific pilot test monitoring plan will be submitted to the NCDEQ prior to
pilot test implementation.
4.2.3.1 Data Parameters
The data parameters outlined below include a combination of hydraulic data and geochemical
characterization data (water quality, stable isotopes, and major ions) to be evaluated for estimating
the well capacity, hydraulic connection and influence of the extraction and clean water infiltration system,
and provide estimated hydraulic parameters for the hydraulic testing areas.
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Water Levels
Water level measurements are a part of the data collection design within the focus and hydraulic testing
areas (Table 4-3). As part of the localized hydraulic testing, water levels will be continuously monitored
using data -logging pressure transducers to provide high -resolution time -series data used to evaluate
hydraulic influence and connectivity in relation to the extraction and clean water infiltration well operation
and the extraction hydraulics. Continuous water level data from pressure transducers within the extraction
and clean water infiltration wells will also be used in the evaluation. Surface water stilling wells within
Lake Norman (WL-1 and WL-2) will also have pressure transducers installed to monitor and evaluate
effects from proximal extraction wells.
Manual water level measurements will be collected periodically from the localized network of wells
selected for monitoring and from additional wells locally surrounding the pilot test area to provide
necessary groundwater and surface water level elevations to calibrate the pressure transducer data to
an elevation point and to evaluate groundwater flow (horizontal and vertical hydraulic gradients) in relation
to the extraction and/or clean water infiltration well operation.
Water Quality
Water quality parameters including temperature, pH, specific conductance, oxidation-reduction potential,
turbidity, and dissolved oxygen may also be recorded continuously from select monitoring wells and
stilling wells. These data may be collected from monitoring wells in areas of clean water infiltration,
COI -affected groundwater areas, and near Lake Norman and the Ash Basin. The data will provide
additional evidence of hydraulic influence and connection based on changing groundwater conditions
compared to baseline conditions. The data may be collected by data -logging multi -parameter sondes
that includes a pressure transducer.
Stable Isotopes
Groundwater recharged by local infiltration of precipitation has a distinct abundance ratio of hydrogen
and oxygen isotopes relative to surface water, which receives water from a broader area and undergoes
evaporative processes (lighter isotopes become less abundant with evaporation; especially deuterium).
The deuterium (2H) and oxygen-18 ('$O) isotope abundance ratios of water will be used as a natural
tracer. Water samples for stable isotope analysis may be collected from groundwater monitoring wells
and/or stilling wells during baseline and operation/hydraulic testing periods. The water stable isotope
data will be used as an additional line of evidence for understanding hydraulic influence and connection
between extraction wells and clean water infiltration wells, and potential influence from proximal
surface water.
Major Ions and Alkalinity
Concentrations of major ions including sodium, potassium, calcium, magnesium, alkalinity
(carbonate/bicarbonate), sulfate, and chloride will be monitored to characterize the groundwater type
prior to and during groundwater extraction and clean water infiltration operations. The major ions
concentration data will support the understanding of hydraulic influence and connection between
extraction wells and clean water infiltration wells, and potential influence from proximal surface water.
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Precipitation and Barometric Pressure
Precipitation and atmospheric barometric pressure data will be recorded using a weather station or
tipping bucket with a data logger and barometric pressure logger. These data will be used during
evaluation of the hydraulic and geochemical characterization data.
4.2.3.2 Well Capacity by Corrective Action Well Performance Testing
Specific capacity (flow rate divided by drawdown) data will be collected and analyzed during well
development activities. The specific capacity data will be used to select a representative group
(low, moderate, and high well capacities) of extraction and clean water infiltration wells based on the
range of specific capacities respective of groundwater zone and spatial locations. Extraction and clean
water infiltration step testing will be performed at these selected group of wells to collect baseline
extraction and clean water infiltration well capacity data to compare to design flow rates from the
CAP Update (SynTerra 2019).
A series of short-term extraction and clean water infiltration step tests, each typically 30 minutes in
duration, will be performed on the selected extraction and clean water infiltration wells to evaluate well
capacity under variable flow rates to establish baseline performance criteria. For extraction wells, the flow
rate of the initial step will be relatively low. Flow rates during subsequent steps will be increased.
Flow rates and durations of steps will be adaptive based on field observations. The step test flow rates
will be recorded using a totalizer and instantaneous flowmeter. The response of groundwater levels to
the step testing (drawdown or mounding) will be recorded with a pressure transducer. The step testing
process will include three to four varying flow rates. Following the final step, flow will cease, and recovery
will be monitored.
During the step testing, a select number of extraction wells will be sampled for groundwater
quality parameters including but not limited to total suspended solids, TDS, total organic carbon, pH,
alkalinity, calcium, and total hardness. These data will be used to characterize the scaling and fouling
characteristics of the extracted groundwater for any refinements needed to the conveyance
system design.
4.2.3.3 Area of Hydraulic Influence and Connectivity
These data collected within the pilot test monitoring focus areas and hydraulic testing areas (Figure 4-7
and Table 4-3) include measurements of water level, water quality parameters, stable isotopes, and
major ions as detailed above. The data will be evaluated based on changing conditions from prior to and
during operational periods to support evaluation of hydraulic influence and connection. The pilot test
monitoring focus areas are as follows:
• North Side Slope — including the Northern area of COI affected groundwater;
• West Side Slope — including the Western area along the eastern edge of the Ash Basin;
• South Side Slope — including the Southern area of COI affected groundwater; and
• Background — including the area outside of activities for comparison with system operation and
hydraulic testing areas.
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Hydraulic Testing Areas
The pilot test system will provide significant hydraulic data to be used to refine further design. Short-term
testing is also proposed in areas where the extraction and clean water infiltration systems will not be
implemented to improve data resolution around hydraulic response and dynamic groundwater quality.
Data from these short-term tests will be used to further refine the design of the full-scale corrective action
system.
Hydraulic testing locations along the southeast portion of the Site and along the shore of Lake Norman
will include 48- to 72-hour constant -rate extraction tests (Figure 4-7). The 48- to 72-hour extraction tests
will be performed under a constant flow rate estimated from hydraulic information collected during well
development. The 48- to 72-hour constant -rate extraction test data will be used to evaluate the hydraulic
influence, surface water influence, and refine hydraulic parameters (transmissivity and storativity). The
test flow rates will be recorded using a totalizer and instantaneous flowmeter. At the conclusion of the
test, final groundwater level measurements will be recorded, and the groundwater level recovery will be
recorded.
There are three areas where extraction wells will be installed and used in conjunction with data collection
at existing monitoring wells for hydraulic testing (Figure 4-7):
• North Ash Basin Dam — Two constant rate extraction tests will be completed individually at
EX-41 BR and EX-42BR, which are located along dip and along strike to the AB-1 monitoring well
cluster, respectively. Water level and geochemistry response will be monitored at AB-1 S, AB-1 D,
AB-1 BR, AB-1 BRL, and AB-1 BRLL.
• Mid -Point Ash Basin Dam — One constant rate extraction test will be completed at EX-46BR with
water levels and geochemistry response monitored at MW-8S and MW-8D. Step testing will be
completed at EX-45BR with water level response monitored at MW-8S and MW-8D.
• South Ash Basin Dam — One constant rate extraction test will be completed at EX-52BR with
water levels and geochemistry response monitored at CCR-5S and CCR-5D; and at well cluster
AB-2BS, AB-2D, and AB-DBR. Step testing will be completed at EX-53BR with water level
response monitored at CCR-5S and CCR-5D.
• Lake Norman — One constant rate extraction test will be completed at EX-38BR with water level
a chemistry response monitored at EMP-3S, EMP-3D, EMP-BR, MW-10S, MW-10D, and WL-2.
Step testing will be completed at EX-35BR and EX-37BR with water level response monitored at
EMP-3S, EMP-3D, and EMP-313R.
4.2.3.4 COI Concentration Trends
Concentrations of COI will be monitored as one of the lines of evidence for evaluating the effectiveness of
pilot test operations and to collect additional COI distribution data to support the pilot test. Concentration
data will be collected in monitoring well locations in proximity to extraction and clean water infiltration well
locations where concentrations are anticipated to decline as operations facilitate pore volume exchange
with unaffected groundwater. These data will be used to evaluate the hydraulic connectivity between
extraction and clean water infiltration wells and to evaluate the effectiveness of pore volume exchanges
for reducing concentrations. Upgradient of pilot test areas, concentration data will be collected to track
concentrations flowing into the area of operation of the clean water infiltration and extraction system.
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The COI concentration data will also be collected at sidegradient and downgradient locations to verify
concentrations do not increase due to pilot test operations.
4.2.4 Permit Requirements
Applicable permit requirements and coordination activities associated with pilot test implementation are
summarized as follows:
• Groundwater Recovery Well Permit — Permit required to construct any well or well system
installed to recover COI -affected groundwater or other liquids from the subsurface. Required
information, including well construction details and a map of proposed locations, was included in
the permit application, which was submitted to the NCDEQ on June 19, 2020.
• UIC Permit — Permit required to install and operate the clean water infiltration system. A UIC
Permit was submitted to the NCDEQ on June 19, 2020.
• Existing NPDES Permit (NC0004987) — A permit modification is required to discharge extracted
treated groundwater through Outfall 002. A modification request was submitted to the NCDEQ on
April 29, 2020.
• Erosion and Sediment Control Permit — Permit required for construction and excavation -related
activities if the area of disturbance is greater than one acre. The area of disturbance for the CAP
construction activities is greater than one acre.
• Lake Services Conveyance Permit — For installation of the new intake structure in Lake Norman.
4.3 Pilot Test Implementation Schedule
The anticipated schedule to complete the key milestones of this Work Plan is as follows:
• Permitting
— Erosion and Sediment Control Permit (June 2020)
— Groundwater Recovery Well Permit (July 2020)
— UIC Permit (July 2020)
— NPDES Permit Modification (November 2020)
— Lake Services Conveyance Permit (anticipated March 2021)
• Begin extraction and clean water infiltration well network installation (July 2020)
• Final design (August 2020)
• Contracting (October 2020)
• Extraction and clean water infiltration well network installation (November 2020)
• Extraction well hydraulic testing (January 2021)
• Construction of extraction and clean water infiltration systems (March 2021)
• Pilot test system startup (April 2021)
• EMP implementation and pilot test data collection (following startup)
• Scale -up activities (to -be -determined).
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5 REFERENCES
LeGrand, H. 1988. Region 21, Piedmont and Blue Ridge. In: J. Black, J. Rosenshein, P. Seaber, ed.
Geological Society of America, 0-2, (pp. 201-207).
LeGrand, H. 1989. "A conceptual model of ground water settings in the Piedmont region, in groundwater
in the Piedmont. In: Daniel C., White, R., Stone, P., ed." Ground Water in the Piedmont of the Eastern
United States. Clemson, SC: Clemson University. 317-327.
Harned, D., and Daniel, C. 1992. The transition zone between bedrock and regolith: Conduit for
contamination. In Daniel, C.C., White, R., and Stone, P., eds., Groundwater in the Piedmont,
Proceedings of a Conference on Ground Water in the Piedmont of the Eastern United States,
Charlotte, N.C., Oct. 16-18, 1989. Clemson, SC: Clemson University (336-348).
HDR. 2015 Comprehensive Site Assessment Report - Marshall Steam Station Ash Basin.
HDR. 2016. Comprehensive Site Assessment Supplement 2 - Marshall Steam Station Ash Basin.
NCDEQ. 2019. Duke Energy Interpretation of CAP Contents Guidance. September 10.
NCDEQ. 2020a. Approval to Commence Pilot Tests for Groundwater Corrective Action. February 10.
NCDEQ. 2020b. Consent Order between NCDEQ and Duke Energy. February 5.
NCDENR. 2009. Subchapter 2C Section .0100, Well Construction Standards.
https://ehs.ncpublichealth.com/oswp/docs/2C-0100-RULES-FINAL-Sep2009.pdf
North Carolina General Statutes. 2014. Coal Ash Management Act of 2014 NCGS § 130A-309.
North Carolina Geological Survey. 1985. Geologic Map of North Carolina: North Carolina Geological
Survey, General Geologic Map, scale 1:500000.
SynTerra. 2019. Correction Action Plan Update — Marshall Steam Station.
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6 CERTIFICATION
I, C. Scott Bostian , a Professional Engineer for Arcadis G&M of North Carolina, Inc., do certify that, to
the best of my knowledge, the information contained in this report is true, accurate and complete. Any
work that would constitute the "practice of engineering" as defined by G.S. 89C was performed under
my N0Ff4Wj@4vharge.
C.Cott W Ng PE #25659
Arcadis G&M of North Carolina, Inc. is licensed to practice geology and engineering in North Carolina.
The certification numbers of the company are C-155 (geology) and C-1869 (engineering).
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TABLES

Table 3-1
Data Collection Objectives
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
PARCADIS bunt n& Consultancy
fornaturaland
hu ilt assets
Full -Scale: Restore groundwater at or beyond the Geographic Limitation affected by the ash
State the Problem
impoundments to the standards or as close to the standards as is economically and technologically
feasible in accordance with 15A NCAC 02L. 0106. Demonstrate that corrective action is sufficient
to protect public health, safety, and welfare, the environment, and natural resources.
Are the number of extraction and clean water infiltration wells, spatial configuration, and testing
Decision Statements
capacity sufficient to achieve the full-scale corrective action design objective outlined in the
problem statement?
Are critical COI areas and affected groundwater zones responding to the corrective action?
Pilot Test Areas:
• Phase I Dry Ash Landfill Area,
• Southeast of the Dry Ash Landfill and west of Lake Norman
Study Area Boundaries
• Along the Ash Basin Dam.
Interconnected Groundwater Zones:
• Saprolite Zone
• Transition (Deep) Zone
• Bedrock Zone
Inputs to the Decision
Decision Rules"
Well Capacity: • Compare baseline extraction and clean water infiltration capacity range with design
• Collect pre -operational and operational data capacity estimated by the groundwater flow model to evaluate areas with reduced flow
including water levels, flowrates, and head that require additional extraction or clean water infiltration wells.
pressures, and perform step testing at select 0Estimate the maintenance frequency and thresholds for redevelopment of the extraction
extraction and clean water infiltration wells and clean water infiltration wells based on operational performance data compared to
baseline.
Area of Hydraulic Influence and Connectivity:
Collect operational data from extraction,
clean water infiltration, and monitoring wells
including measurements of water levels and
water quality (depending on the location that
may include pH, specific conductivity, stable
isotopes, and major ions). These data will
• Verify hydraulic parameters for the groundwater zone(s).
• Evaluate the hydraulic influence and connection of respective locations and nearby
surface water bodies.
• Evaluate the hydraulic influence/connection with multiple lines of evidence
(e.g., geochemical tracers) to include responses to clean water infiltration (pore
volume exchange).
arcadis.com Use or disclosure of this information is subject to the disclaimer located on the table of contents of this document.

Table 3-1
Data Collection Objectives
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
also be collected from surface water within
proximity of pilot test well influence.
Perform targeted extraction hydraulic tests in
areas of non -operation (note: response may
be limited based on short-term testing).
PARCADIS bunt n& Consultancy
fornaturaland
hu ilt assets
Adjust the overall spatial configuration or flow rate based on the hydraulic
influence/connectivity understanding to propose alternative design criteria (increased
or reduced well network, spacing, or flow rate adjustments).
COI Concentration Reduction: 0 Evaluate COI concentration trends to estimate concentration reduction in pilot test
• As part of the pilot test monitoring, conduct operation areas.
groundwater sampling and analyze for COI 0 If the COI concentration trends indicates insufficient hydraulic influence/connection and/or
on a routine basis within key performance pore volume exchange response for reduction of COI -affected groundwater in accordance
monitoring areas. with 15A NCAC 02L. 106 standards, first adjust flowrates (if capacity is available), and
second (if applicable) expand extraction and/or clean water infiltration well network.
Hydrogeology Verification and Constructability:
Collect and compile hydrogeologic data
(lithologic depths and thicknesses) to verify
subsurface conditions.
Identify and compile extent of utilities and
areas of inaccessibility.
• Adjust extraction and/or clean water infiltration well locations based on utility location
results.
• If groundwater zone thickness differs from expected, vary design of the extraction and/or
clean water infiltration wells to match observed conditions.
Notes:
For the proposed hydraulic remedies at the sites, the data inputs, although listed separately here, will be used in conjunction with one another to evaluate effectiveness of the
corrective action.
COI = constituent(s) of interest
NCAC = North Carolina Administrative Code
arcadis.com Use or disclosure of this information is subject to the disclaimer located on the table of contents of this document. 2

PIARCADIS I `F`
Table 4-1
Pilot Test Basis of Design Summary
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
Meet applicable groundwater criteria at and beyond the Geographic Limitation. Applicable standards are North Carolina
Generalized Remediation Goals
groundwater standards (NCAC Title 15A, Subchapter 02L, Groundwater Classification and Standards; Interim Maximum
Allowable Concentrations; or background threshold values, whichever is greater).
Constituents of Interest
COI include antimony, barium, beryllium, boron, chloride, cobalt, iron, lithium, manganese, molybdenum, selenium, strontium,
sulfate, thallium, total dissolved solids, total radium, and vanadium.
Groundwater Draw -Down
To -be -determined during pilot testing.
Groundwater Zone of Capture
To -be -determined during pilot testing.
Discharge Location
Discharge to an existing ash basin decant system and finally to NPDES Ouffall 002.
Well water pumps within extraction well network dewater wells to targeted depth, inducing groundwater capture zone. The
extracted water is conveyed to an existing ash basin decant system for treatment before ultimate discharge to NPDES Outfall
Generalized Process Description
002. Infiltration water will be provided from a new intake, treated (infiltration water only), and conveyed to the either the
modular clean water infiltration control system or dust suppression storage tank. The clean water infiltration control system
will then process the clean infiltration water through a manifold out to the individual clean water infiltration wells.
There will be two modular control buildings (one for extraction and one for clean water infiltration). Two additional modular
Collection Points / Modular Buildings
units will be installed to convey the water to the existing ash basin decant system and from the clean water infiltration
treatment system to the MIC.
Groundwater Extraction Equipment
Must be readily available, serviceable, and universally compatible with system controls.
Well Pump Control
Extraction well pumps will cycle on/off within a set draw -down range; flow rates will be controlled manually using valve.
Well Level Monitoring
Pressure transducers with PLC pump control set points, data logging, and operating interface.
Flow Monitoring
Instantaneous and totalized flow measurements for individual wells and total system flow at the MEC and MIC buildings.
Conveyance
Exterior piping buried where possible to minimize heat tracing/insulation; size subsurface infrastructure for full scale system
with cleanouts (pipe size 6").
Existing Utilities/Infrastructure
Design to integrate into existing ash basin decant system (expanded as part of pilot).
Not required for the majority of the conveyance pipe, only one section of subsurface piping is proposed to be double walled
Secondary Containment
(within the emergency spillway). A leak detection sump will be included in each modular container and within the MEC/MIC
concrete pad.
Service Life
Design is for 10-15 year service life.
Include water storage (extraction and clean water infiltration), conveyance, and electrical/controls capacity for future
Flexibility
expansion. Include spare infrastructure (piping and conduit) with design. The modular pump containers are intended to
operate over a large range of flows to provide flexible adjustment based on conditions during the pilot test.
Redundancy
Include spare piping and conduit where appropriate.
Operation & Maintenance
Design to include automated process and remote monitoring; full serviceability of all major components (e.g., tru-uin fittings,
flanges, and clean outs).
Winterized
Each system is enclosed in a modular enclosure with heat pump/insulation; heat tracing and insulation of water conveyance
pipes where required.
Generalized Controls Requirement
Includes fail -safes to prevent spills/equipment damage, over pressurization, and to allow for automated operation.
Remote Monitoring
Each system includes remote monitoring capabilities for Duke Energy and operational personnel.
Integration with Facility Operations
Interlock with dust suppression system (clean water infiltration) and existing ash basin decant system (extraction).
Modular Building Communications
Each modular system to contain dedicated/independent control with inter -system communication for interlock controls.
Number of Wells
23 active pilot test wells (66 full-scale).
Flow Rate
Total Design Flow Rate: 652 gpm (full-scale).
Diameter
6-inch.
Material of Construction
Stainless -steel wire wrapped screen connected to schedule 80 PVC riser, bedrock only wells - open borehole if possible.
Well Pumps
0.5 to 1.5 HP electric submersible pump.
Well Vaults
Precast square concrete vault box with lids; float switch and manual shut-off valve at wellhead.
Instrumentation
Svstem controlled by a PLC with HMI.
Material of Construction Stainless -steel wire wraooed screen connected to schedule 80 PVC riser.
lnstrumernanon system controuea Dy a rLc witn mmi.
Construction Modified container CONEX installed on ad/foundation with appropriately -sized containment curb, if required.
Insulated poly ethylene tank (clean water infiltration) and temporary frac tank (extraction). Sized for future expansion or
Collection Tank confirmation of flow rates (frac tank). Flow requirement for existing ash basin decant system is 20% flow variability with
pressure requirements (extraction). Dust suppression tank provided by Duke Energy for site operations.
Sewer Not reauired.
Acronyms and Abbreviations:
COI = constituents of interest
MIC = modular infiltration control
gpm = gallon per minute
NCAC = North Carolina Administrative Code
HMI = human machine interface
NPDES = National Pollution Discharge Elimination System
HP = horsepower
PLC = programmable logic control
MEC = modular extraction control
PVC = polyvinyl chloride
Page 1 of 1

Table 4-2
Proposed Pilot Well Construction Details
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
04 ARCAD I
System Well ID
Extraction Well
EX-11SBR
Location Description
Northeast of Ash Basin
Figure Dimension
Hydro-stratigraphic
Unit Target
S, TZ, B
-�---�
Surface-.
Total Well DepthCasing Screen Bottom of
(ft bgs) Diameter (inches) nches) (ft bgs)
165 6 6 100 166
EX-12SBR
Northeast of Ash Basin
S, TZ, B
163
6
6
100
164
EX-13SBR
Northeast of Ash Basin
S, TZ, B
166
6
6
100
167
EX-14SBR
Northeast of Ash Basin
S, TZ, B
157
6
6
95
158
EX-15SBR
Northeast of Ash Basin
S, TZ, B
160
6
6
100
161
EX-16SBR
Northeast of Ash Basin
S, TZ, B
171
6
6
100
172
EX-17SBR
Northeast of Ash Basin
S, TZ, B
183
6
6
105
184
EX-18SBR
Northeast of Ash Basin
S, TZ, B
190
6
6
105
191
EX-19SBR
Northeast of Ash Basin
S, TZ, B
190
6
6
105
191
EX-20SBR
Northeast of Ash Basin
S, TZ, B
193
6
6
105
194
EX-21SBR
Northeast of Ash Basin
S, TZ, B
180
6
6
105
181
EX-22SBR
Northeast of Ash Basin
S, TZ, B
177
--
6
6
105
178
EX-35BR*
East of Ash Basin
B
250
10
90
6
6
150
251
EX-37BR*
East of Ash Basin
B
260
10
95
6
6
155
261
EX-38BR*
East of Ash Basin
B
250
10
85
6
6
155
251
EX-41BR*
Ash Basin Dam
B
235
10
85
6
6
140
236
EX-42BR*
Ash Basin Dam
B
220
10
80
6
6
130
221
EX-45BR*
Ash Basin Dam
B
235
10
75
6
6
150
236
EX-46BR*
Ash Basin Dam
B
235
10
75
6
6
150
236
EX-52BR*
Ash Basin Dam
B
190
10
35
6
6
145
191
EX-53BR*
Ash Basin Dam
B
205
10
45
6
6
150
206
EX-56SBR
Northeast of Ash Basin
S, TZ, B
138
--
--
6
6
90
139
EX-57SBR
Northeast of Ash Basin
S, TZ, B
135
6
6
95
136
EX-58SBR
Northeast of Ash Basin
S, TZ, B
141
6
6
95
142
EX-59SBR
Northeast of Ash Basin
S, TZ, B
152
6
6
95
153
EX-60SBR
Northeast of Ash Basin
S, TZ, B
169
6
6
100
170
EX-61 SBR
Northeast of Ash Basin
S, TZ, B
166
6
6
100
167
EX-62SBR
Northeast of Ash Basin
S, TZ, B
169
6
6
100
170
EX-63SBR
Northeast of Ash Basin
S, TZ, B
176
6
6
100
177
EX-64SBR
Northeast of Ash Basin
S, TZ, B
170
6
6
100
171
EX-65SBR
Northeast of Ash Basin
S, TZ, B
151
6
6
95
152
EX-66SBR
Northeast of Ash Basin
S, TZ, B
161
6
6
100
162
Total Extraction Wells
32
Page 1 of 2

Table 4-2
Proposed Pilot Well Construction Details
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
04 ARCAD I
Clean Water Infiltration
IN-04
Northeast of Ash Basin
S, TZ 54 6 6 20 55
IN-05
Northeast of Ash Basin
S, TZ 70
6
6
45
71
IN-06
Northeast of Ash Basin
S, TZ 53
6
6
20
54
IN-08
Northeast of Ash Basin
S, TZ 62
6
6
25
63
INA 1
Northeast of Ash Basin
S, TZ 71
6
6
35
72
IN-12
Northeast of Ash Basin
S, TZ 73
6
6
30
74
IN-13
Northeast of Ash Basin
S, TZ 70
6
1 6
30
71
IN-14
Northeast of Ash Basin
S, TZ 70
6
6
30
71
Total Clean Water
Infiltration Wells
Notes:
a. Well locations are based on preliminary site information. Locations are subject to change for constmctability.
b. Select well locations may vary based on the results of landfill delineation activities.
c. Final well depths, screen lengths, and casing lengths will be based on the geology encountered and not the preliminary depth proposed.
d. Wells installed within only the bedrock zone are intended to be installed as open borehole wells; from the base of the surface casing to the total well depth provided.
Screened wells will be installed in bedrock with the construction details provided at locations where open borehole wells are not feasible due to bedrock instability.
'- Well installed for pump test only, not connected to pilot test system.
Acronyms and Abbreviations:
-- = not applicable
B = Bedrock
bgs = below ground surface
ft = feet
S = Saprolite
TZ = Transition Zone
Page 2 of 2

Table 4-3
Monitoring Plan Summary
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
11VI L11 01UC OILP[JU P%I VCL - OYLCIII VfACI OULP1I IVIVIIILVI IIILU
MW-10S
Saprolite
681,328.00
1,418,114.00
769.74
MW-10D
Transition Zone
681,327.00
1,418,119.00
770.00
MW-14S
Saprolite
683,634.61
1,416,992.14
808.23
MW-14D
Transition Zone
683,626.00
1,416,999.00
808.67
MW-14R
Bedrock
683,633.42
1,416,982.98
807.65
MW-14BRL
Bedrock
683,634.61
1,416,992.14
809.05
EMP-4S
Saprolite
Pending installation
EMP-4D
Transition Zone
Pending installation
EMP-4BR
Bedrock
Pending installation
South Side Slope Area - System
Operation Monitoring and Lake
Norman Influence
GWA-11S
Saprolite
682,793.57
1,417,401.58
809.59
GWA-11D
Transition Zone
682,800.44
1,417,422.52
808.24
GWA-11BR
Bedrock
682,800.64
1,417,431.86
807.00
GWA-15S
Saprolite
682,858.94
1,417,584.71
778.53
GWA-15D
Transition Zone
682,846.58
1,417,585.98
778.96
WL-1
Inlet
682,953.93
1,417,638.28
758.00
West Side Slope Area - System Operation Monitoring and Ash Basin Influence
AL-1S
Saprolite
683,157.68
1,417,002.90
814.93
AL-1D
Transition Zone
683,144.37
1,417,007.50
815.05
AL-1BR
Bedrock
683,171.40
1,417,000.89
815.02
CCR-13S
Saprolite
682,830.07
1,416,766.19
796.75
CCR-13D
Transition Zone
682,838.47
1,416,772.08
796.75
CCR-14S
Saprolite
683,291.34
1,416,624.08
793.43
CCR-14D
Transition Zone
683,281.01
1,416,626.84
793.23
CCR-12S
Saprolite
682,451.33
1,416,717.77
791.22
CCR-12D
Transition Zone
682,446.12
1,416,714.27
791.09
CCR-11S
Saprolite
682,082.49
1,417,288.44
791.56
CCR-11D
Transition Zone
682,078.97
1,417,292.17
791.27
MW-1
Transition Zone
682,767.00
1,417,125.00
821.20
OB-1
Transition Zone
682,648.00
1,417,081.00
847.59
Lake Norman Area - Hydraulic Conductivity and Lake Norman
Influence
EX-38BR (pumping well)
Bedrock
681,404.50
1,418,123.13
777.00
EX-37BR (step testing)
Bedrock
681,567.50
1,418,178.12
785.00
EX-35BR (step testing)
Bedrock
681,796.46
1,418,228.58
781.00
EMP-3S
Saprolite
Pending installation
EMP-31D
Transition Zone
Pending installation
EMP-3BR
Bedrock
Pending installation
MW-10S
Saprolite
681,328.00
1,418,114.00
769.74
MW-10D
Transition Zone
681,327.00
1,418,119.00
770.00
WL-2
Lake Norman
681,154.74
1,418,263.43
758.00
753.22
685.49
773.30
748.31
705.81
521.50
738.22
680.49
758.30
743.31
700.81
511.50
PT
PT
PT
PT
PT
PT
sonde
sonde
sonde
766.83
751.83
sonde
695.45
690.45
sonde
657.00
652.00
sonde
757.72
742.72
sonde
719.96
709.96
sonde
----
----
sonde
A ARCA DIS =R1a�
du�casge�
x
----
----
----
x
x
----
----
----
x
x
----
----
----
x
x
----
----
----
x
x----
----
----
x
x
----
----
----
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
780.39
765.39
sonde x
732.55
727.55
sonde x
693.02
688.02
sonde x
737.64
722.64
sonde x
717.34
712.34
sonde x
786.21
771.21
sonde x
733.64
728.64
sonde x
782.82
767.82
PT x
706.43
701.43
PT x
783.75
768.75
PT x
716.40
711.40
PT x
751.60
741.60
PT x
804.90
789.10
PT x
682.00
525.00
sonde x
680.00
532.00
PT x
719.00
531.00
PT x
PT x
PT x
PT x
753.22
738.22
sonde x
685.49
680.49
sonde x
----
----
sonde x
x x
x x
x x
x x
x x
x x
x x
x ----
x x
x ----
x x
x ----
x x
x ----
----
----
----
----
---- x
---- ----
x
----
x
----
x ----
---- ----
x x
x ----
x x
x ----
x x
x ----
x x
x ----
x x
x ----
x x
x ----
Page 1 of 2

Table 4-3
Monitoring Plan Summary
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
11VIL11 PUMI VCM111 ✓AIII M11SA - VIYUIOU 11 , %,UIIUU%,LIV I LY 411U LQILC IVVI I11411 1111 IUC11%,V
EX-42BR (pumping well)
Bedrock
681,436.50
1,417,667.70
771.00
681.00
553.00
sonde
EX-41BR (pumping well)
Bedrock
681,516.44
1,417,808.91
764.00
679.00
540.00
PT
AB-1S
Transition Zone
681,561.68
1,417,700.27
774.75
766.36
751.36
sonde
AB-1D
Bedrock
681,572.38
1,417,705.89
774.93
681.30
676.30
sonde
AB-1BR
Bedrock
681,586.93
1,417,714.17
774.93
653.44
648.44
sonde
AB-1BRL
Bedrock
681,572.38
1,417,705.89
774.77
613.77
608.77
sonde
AB-1BRLL
Bedrock
681,543.59
1,417,690.50
774.79
579.79
569.79
sonde
Mid -Point Ash Basin Dam
Area - Hydraulic Conductivity
and Lake Norman Influence
EX-46BR (pumping well)
Bedrock
681,115.00
1,417,508.00
760.00
675.00
524.00
sonde
EX-45BR (step testing)
Bedrock
681,029.00
1,417,444.00
764.00
679.00
530.00
PT
MW-8S
Saprolite
680,948.00
1,417,509.00
771.54
759.61
749.61
sonde
MW-8D
Transition Zone
680,944.00
1,417,513.00
771.34
674.80
669.80
sonde
South Ash Basin Dam Area - Hydraulic Conductivity
and Lake Norman Influence
EX-52BR (pumping well)
Bedrock
680,351.60
1,417,144.50
715.00
670.00
526.00
sonde
EX-53BR (step testing)
Bedrock
680,219.00
1,417,080.00
736.00
681.00
529.00
PT
CCR-5S
Saprolite
680,250.77
1,417,138.33
777.25
758.91
743.91
sonde
CCR-5D
Transition Zone
680,244.25
1,417,133.74
776.97
696.83
691.83
sonde
AB-2S
Saprolite
680,484.01
1,417,091.23
781.30
761.58
746.58
sonde
AB-21D
Transition Zone
680,479.38
1,417,087.65
781.44
687.48
682.48
sonde
AB-DBR
Bedrock
680,491.72
1,417,105.83
781.06
488.13
478.13
sonde
Background
CCR-15S
Saprolite
683,867.76
1,415,819.89
802.24
795.73
780.73
PT
CCR-15D
Transition Zone
683,863.39
1,415,815.68
802.42
746.19
741.19
PT
General Notes:
a. An Active Ash Basin sample for water quality, stable isotopes, and major ions are also planned for comparison to monitoring results.
Footnotes:
'Includes calcium, magnesium, sodium, potassium, sulfate, chloride, and alkalinity.
2Groundwater sampling for COI will occur on one to three month intervals.
Acronyms and Abbreviations:
---- = not applicable ORP = oxidation-reduction potential
amsl = above mean sea level PT = pressure transducer
COI - constituent of interest sonde = multiparameter sonde for collection of water quality data
DO = dissolved oxygen SpC = specific conductivity
ft = feet
A ACA D IS =IIarwY
krMage�
x x
x
x ----
x----
----
---- ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x----
----
---- ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x----
----
---- ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x x
x
x ----
x---- ---- ---- ----
x---- ---- ---- ----
Page 2 of 2

FIGURES

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4_01 ,�•� I 1 ASH BASIN
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BOUNDARY
J
FLUE GAS
DESULFURIZATION •♦ j 1
RESIDUE LANDFILL F
(PERMIT #1809-INDUS) I `•�.`' %�� t
HOLDING BASIN •u' v p,
MARSHALL STEAM STATION
PARCEL LINE i
0 600 1,200
Distance in Feet
LINED RETENTION
BASIN
r. I
rn
V
79
2,400
LEGEND
_ j LANDFILL COMPLIANCE BOUNDARY
L _ _ l ASH BASIN GEOGRAPHIC LIMITATION
r r s
/
i
ASH BASIN DAM ^
IJ
GYPSUM PAD COAL PILE 400orl `L
MARSHALL
= STEAM STATION
i
PKE N�RMPN
�
. � Il
L i MARSHALL STEAM STATION PARCEL BOUNDARY
r
or Q
Service Layer Credits: USGS .National Map: National Boundaries Dataset, 3DEP Elevation P ogram, Geographic
Names Information System, National'Hydrography Dataset, National Land Cover Database, National Structures
Dataset, and National,Transportation DataseG;USGS Global Ecosystems; U.S. Census Bureau-TIGER/Line data; -
USFS Road Data; Natural Earth Data; U.S. Department of State Humanitarian Information Unit; and NOAA National
Centers for Environmental Information, U.S. Coastal Relief Model. Data refreshed February, 2020.
NOTES:
1. BASEMAP IMAGERY SOURCE: UNITED
STATES GEOLOGICAL SURVEY
7.5-MINUTE SERIES (TOPOGRAPHIC),
LAKE NORMAN NORTH QUADRANGLE,
2019.
2. SOLID WASTE PERMIT NUMBERS ARE
INCLUDED IN PARENTHESES FOR
PERMITTED FACILITIES.
3. ALL BOUNDARIES ARE APPROXIMATE.
4. PROPERTY BOUNDARY PROVIDED BY
DUKE ENERGY CAROLINAS.
DUKE ENERGY
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
SITE LOCATION
PARIJADIS FIGURE
Design & Consultancy
for i i
built assets

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ASBESTOS — r�rt vu i r iov4-nvt��r l aoo�
LANDFILL \ j
f ` •DRY ASH LANDFILL (PHASE II)
, (PERMIT #1804-INDUS-1983)
-
1
PHOTOVOLTAIC \ i i BORROW
STRUCTURAL FILL AREA
ACCESS ROAD ----- -__
STRUCTURAL
FILL
FLUE GAS DESULFURIZATION
RESIDUE LANDFILL
(PERMIT #1809-INDUS)
1 � )
t
t
ti
HOLDING
L BASIN
L
l
NOTES:
1. STREAM AND WETLAND DATA WAS PROVIDED BY DUKE ENERGY
CAROLINAS OBTAINED DURING A WETLAND SURVEY COMPLETED
BY MCKIM & CREED ON MARCH 30, 2016 AND FIELD SURVEY
COMPLETED BY WSP USA IN MARCH AND APRIL 2020 (WSP USA
2020).
2. ALL BOUNDARIES ARE APPROXIMATE.
3. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS.
4. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH
CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200
(NAD83).
5. SOLID WASTE PERMIT NUMBERS ARE INCLUDED IN
PARENTHESIS FOR PERMITTED FACILITIES.
0 1000, 2000'
GRAPHIC SCALE
BASE MAP SOURCE: USGS Digital Orthographic
Quarter Quadrangle (DOQQ), 2018.
DRY ASH LANDFILL
(PHASE 1)
AN (PERMIT #1804-INDUS-1983)
LEGEND
— — — ASH BASIN GEOGRAPHIC LIMITATION
ASH BASIN WASTE BOUNDARY
LANDFILL BOUNDARY
STRUCTURAL FILL BOUNDARY
LANDFILL COMPLIANCE BOUNDARY
— - — DUKE ENERGY CAROLINAS MARSHALL
STEAM STATION SITE BOUNDARY
a A �r
STREAM (MCKIM & CREED 2016)
Q22D WETLAND (MCKIM & CREED 2016)
F— AREA PROPOSED FOR
GROUNDWATER CORRECTIVE
ACTION
FLOW DIRECTION
DUKE ENERGY
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
AREA PROPOSED FOR CORRECTIVE ACTION
an` "C9 ARCAD IS FIGURE-

Ac J
NOT TO SCALE
NOTE:
1. Schematic shows the conceptual view of double slope -aquifer system and included
compartments and was developed by LeGrand (1988 and 1989).
Legend
Slope Aquifer Boundary and Topographic Divide
Discharge Boundary
— — _ - Compartment (C) Boundary
�;+.+..+•- Water Table
Fractures
Ila- Groundwater Flow Direction
Discharge
Area Recharge Area
I
B
C jLand Surface �;
f
1� l
r
i
Piezometer
Water Level
Discharge
Area
_ Water Table � I
13rr7
12
i LIT 1 D `
'COF -
I L a
C _ LU
Equipotential Line
x Groundwater Flow Line
4.Y100 (Modified from Heath. 1983)
METERS
NOTE:
1. Idealized cross-section shows the hydraulic head relationships in recharge and discharge areas.
Cn
DUKE
ENERGY
CAROLINAS

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® GWA-15S
IN-11 GWA-15D
EX-64SBR
AW-1 ® N-??. Z EX-66SBR
19S5„ IN-12 35SBR
OIN-13 ( N-24
3 1 2 Fs O �IN-14 EX-25SBR
NA-11D EX-21SBR• EX023SBRC)EX-26SBR
NA-11 BR
® O
EX-22SBR EX-24SBR EX-27SBR
0 EX-28SBR
Off.- NPDES OUTFALL 007
MW-6D O EX-29SBR
EX-30SBR
MW-6S O 0EX-31BFI
CCR-11S O EX-32BR
CCR-11 D O EX-33BR
CCR-9DA O EX-34BR
CCR-9S
/ 10 EX-35BR
ARA RRBf2 / ` O EX-36BR
LEGEND
ASH BASIN GEOGRAPHIC LIMITATION ® MONITOR WELL (SHALLOW ZONE)
ASH BASIN WASTE BOUNDARY MONITOR WELL (DEEP ZONE)
LANDFILL BOUNDARY ® MONITOR WELL (BEDROCK ZONE)
0 400' 800LANDFILL COMPLIANCE BOUNDARY PROPOSED
PROPOSED MONITORING WELL
PROPOSED EXTRACTION WELL
--- DUKE ENERGY CAROLINAS MARSHALL (SBR = SAPROLITE/TRANSITION/BEDROCK ZONE
GRAPHIC SCALE STEAM STATION SITE BOUNDARY BR = BEDROCK ZONE)
AREA PROPOSED FOR GROUNDWATER • CORRECTIVE ACTION PROPOSED INFILTRATION WELL
FLOW DIRECTION SURFACE WATER STILLING WELL
® NPDES OUTFALL
BASE MAP SOURCE: USGS Digital Orthographic
EXAN PILOT TEST LOCATION
Quarter Quadrangle (DOQQ), 2018. Exrw FULL-SCALE LOCATION
�-,
i
i
l
'
I
i
r
i
I
i
DUKE ENERGY
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
FULL-SCALE DESIGN LAYOUT
FIGURE
ARCAD IS I l; It�, 12 -2

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CCR-15S'Jo EX-8SBR
EX-7SBR
CCR-15D O EX-6SBR
EX-5SBR
EX-4SBR
0 EX-3SBR O
O EX-2SBR EX-9SBR
O EX-1SBR
NOTES:
1. ALL BOUNDARIES ARE APPROXIMATE.
2. PROPERTY BOUNDARY PROVIDED BY DUKE
ENERGY CAROLINAS.
3. DASHED TREATMENT SYSTEM PIPING INDICATES
BURIED PIPE.
4. SOLID TREATMENT SYSTEM PIPING INDICATES
ABOVE GROUND PIPE.
0 400' 800'
GRAPHIC SCALE
BASE MAP SOURCE: USGS Digital Orthographic
Quarter Quadrangle (DOQQ), 2018.
ESTIMATED LOCATION OF
RECONSTRUCTED ACCESS ROAD
PROPOSED DUST
SUPPRESSION
SYSTEM
L,.
.- GWA-10D
EX-56SBR.
EX-57SBR
`IN-15
® EX-58SBR EMP 4D
i •IN-16 EMP-4BR
MODULAR EXTRACTION CONTROL
AND PUMPING SYSTEM
INFILTRATION SYSTEM
-1 AND EQUALIZATION TANK
15S
151D EX-64SBR
EX-66SBR
40 EX-25SBR
IBRD EX-26SBR
SECONDARY CONTAINMENT
t4S[ R EX-27SBR
NPDES OUTFALL 007
MW-6D \ O EX-29SBR
EXISTING (' \ EX-30SBR.
ASH BASIN DECANT SYSTEM �p \ O O EX-316
CCR-11S \ \\ O EX-32BR
CCR-11 D O EX-33BR
7 CCR-9DAk-'/ O EX-34BR
/ CCR-9 c'
>, i // \
40
� � EX-43B
ASH BASIN DAM , . /
E)�-4'
PPROXIMATE DAM LIMITS
AND 50 FT. BUFFER ' EX-47BR�
- i
EX-48'
EX
y i
i EX-�
' AB-2BR
/ AB-2S•�
' AB-2D
EXBR
CCR
EX, Bj 40
CCR-:
i
EX-�4BR(D
EX<55EIR
I I i
I I i
I I i
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LEGEND
— — — ASH BASIN GEOGRAPHIC LIMITATION ® MONITOR WELL (SHALLOW ZONE)
ASH BASIN WASTE BOUNDARY
MONITOR WELL (DEEP ZONE)
® MONITOR WELL (BEDROCK ZONE)
LANDFILL BOUNDARY
® PROPOSED MONITORING WELL
LANDFILL COMPLIANCE BOUNDARY
PROPOSED EXTRACTION WELL
--- DUKE ENERGY CAROLINAS MARSHALL
(SBR = SAPROLITE/TRANSITION/BEDROCK ZONE
STEAM STATION SITE BOUNDARY
BR = BEDROCK ZONE)
AREA PROPOSED FOR GROUNDWATER
• PROPOSED INFILTRATION WELL
CORRECTIVE ACTION
FLOW DIRECTION
SURFACE WATER STILLING WELL
® NPDES OUTFALL
ExnN PILOT TEST LOCATION
Ex[w FULL-SCALE LOCATION
DUKE ENERGY
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
PILOT TEST LAYOUT
ARCAD I S 1 FIGURE1

PILOT TEST EXTRACTION WELLS
FULL-SCALE EXTRACTION WELLS
a
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LLi
a
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a
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0
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EXTENTS OF MODULAR EXTRACTION MANIFOLD SYSTEM
-----------------------------
I I I
I I I
I I I
I I I
I I I
I I I
I I I
I I I
I i I
(TYP. OF 23)
EXTRACTION
MANIFOLD
BLIND FLANGE
FOR FUTURE
EXPANSION
EXTENTS OF MODULAR EXTRACTION SYSTEM
I
I
I
I
I
I
TRANSFER
PUMPS
(DUTY/STANDBY/SPARE)
WELL ID
LOCATION DESCRIPTION
EX-11SBR
NORTHEAST OF ASH BASIN
EX-12SBR
NORTHEAST OF ASH BASIN
EX-13SBR
NORTHEAST OF ASH BASIN
EX-14SBR
NORTHEAST OF ASH BASIN
EX-15SBR
NORTHEAST OF ASH BASIN
EX-16SBR
NORTHEAST OF ASH BASIN
EX-17SBR
NORTHEAST OF ASH BASIN
EX-18SBR
NORTHEAST OF ASH BASIN
EX-19SBR
NORTHEAST OF ASH BASIN
EX-20SBR
NORTHEAST OF ASH BASIN
EX-21SBR
NORTHEAST OF ASH BASIN
EX-22SBR
NORTHEAST OF ASH BASIN
EX-56SBR
NORTHEAST OF ASH BASIN
EX-57SBR
NORTHEAST OF ASH BASIN
EX-58SBR
NORTHEAST OF ASH BASIN
EX-59SBR
NORTHEAST OF ASH BASIN
EX-60SBR
NORTHEAST OF ASH BASIN
EX-61SBR
NORTHEAST OF ASH BASIN
EX-62SBR
NORTHEAST OF ASH BASIN
EX-63SBR
NORTHEAST OF ASH BASIN
EX-64SBR
NORTHEAST OF ASH BASIN
EX-65SBR
NORTHEAST OF ASH BASIN
EX-66SBR
NORTHEAST OF ASH BASIN
HYDRAULIC TEST WELLS*
WELL ID
LOCATION DESCRIPTION
EX-356R*
EAST OF ASH BASIN
EX-376R*
EAST OF ASH BASIN
EX-38BR*
EAST OF ASH BASIN
EX-41 BR*
ASH BASIN DAM
EX-42BR"
ASH BASIN DAM
EX-45BR*
ASH BASIN DAM
EX-4613W
ASH BASIN DAM
EX-5213R*
ASH BASIN DAM
EX-536R*
ASH BASIN DAM
NOTE: * - WELL INSTALLED FOR PUMP TEST ONLY,
NOT CONNECTED TO PILOT TEST
SYSTEM
('DUKE
ENERGY
CAROLINAS
WELL ID
LOCATION DESCRIPTION
EX-01SBR
NORTH OF ASH BASIN
EX-02SBR
NORTH OF ASH BASIN
EX-03SBR
NORTH OF ASH BASIN
EX-04SBR
NORTH OF ASH BASIN
EX-05SBR
NORTH OF ASH BASIN
EX-06SBR
NORTH OF ASH BASIN
EX-07SBR
NORTH OF ASH BASIN
EX-08SBR
NORTH OF ASH BASIN
EX-09SBR
NORTH OF ASH BASIN
EX-10SBR
NORTH OF ASH BASIN
EX-23SBR
NORTHEAST OF ASH BASIN
EX-24SBR
NORTHEAST OF ASH BASIN
EX-25SBR
NORTHEAST OF ASH BASIN
EX-26SBR
NORTHEAST OF ASH BASIN
EX-27SBR
NORTHEAST OF ASH BASIN
EX-28SBR
NORTHEAST OF ASH BASIN
EX-29SBR
NORTHEAST OF ASH BASIN
EX-30SBR
NORTHEAST OF ASH BASIN
EX-31 BR
NORTHEAST OF ASH BASIN
EX-32BR
NORTHEAST OF ASH BASIN
EX-33BR
NORTHEAST OF ASH BASIN
EX-34BR
NORTHEAST OF ASH BASIN
EX-36BR
NORTHEAST OF ASH BASIN
EX-39BR
NORTHEAST OF ASH BASIN
EX-40BR
NORTHEAST OF ASH BASIN
EX-43BR
NORTHEAST OF ASH BASIN
EX-44BR
NORTHEAST OF ASH BASIN
EX-47BR
NORTHEAST OF ASH BASIN
EX-48BR
NORTHEAST OF ASH BASIN
EX-49BR
NORTHEAST OF ASH BASIN
EX-50BR
NORTHEAST OF ASH BASIN
EX-51 BR
NORTHEAST OF ASH BASIN
EX-54BR
NORTHEAST OF ASH BASIN
EX-55BR
NORTHEAST OF ASH BASIN

Q
J
O
W
Q
Cn
Q
LL
m
75
d
0
cvi
0
N
0
N
uJ
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LAKE NORMAN
SURFACE
WATER INTAKE
W
Q
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('J 0
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X � NOT TO SCALE
INTAKE
WATER
EXTENTS OF INFILTRATION PRE-TREATMENT SYSTEM
AL
TRANSFER PUMPS
(DUTY/STANDBY)
ULTRAVIOLET
LIGHT
DISINFECTION
I � I
TRANSFER PUMPS (DUTY/STANDBY) HIGH FLOW BAG FILTERS
I I
I I
I I
I I
DUST
SUPPRESSION
TANK
PILOT TEST INFILTRATION WELLS
EXTENTS OF INFILTRATION SYSTEM ENCLOSURE —
WELL ID
LOCATION DESCRIPTION
IN-04
NORTHEAST OF ASH BASIN
IN-05
NORTHEAST OF ASH BASIN
IN-06
NORTHEAST OF ASH BASIN
IN-08
NORTHEAST OF ASH BASIN
IN-11
NORTHEAST OF ASH BASIN
IN-12
NORTHEAST OF ASH BASIN
IN-13
NORTHEAST OF ASH BASIN
IN-14
NORTHEAST OF ASH BASIN
—1
I
(TYP. OF 8)
INFILTRATI
MANIFOL
BLIND FLANC
FOR FUTUF
EXPANSIC
('DUKE
ENERGY
CAROLINAS
FULL-SCALE INFILTRATION WELLS
WELL ID
LOCATION DESCRIPTION
IN-1
NORTHEAST OF ASH BASIN
IN-2
NORTHEAST OF ASH BASIN
IN-3
NORTHEAST OF ASH BASIN
IN-7
NORTHEAST OF ASH BASIN
IN-9
NORTHEAST OF ASH BASIN
IN-10
NORTHEAST OF ASH BASIN
IN-15
NORTHEAST OF ASH BASIN
IN-16
NORTHEAST OF ASH BASIN
INA7
NORTHEAST OF ASH BASIN
INA8
NORTHEAST OF ASH BASIN
INA9
NORTHEAST OF ASH BASIN
IN-20
NORTHEAST OF ASH BASIN
IN-21
NORTHEAST OF ASH BASIN
IN-22
NORTHEAST OF ASH BASIN
IN-23
NORTHEAST OF ASH BASIN
IN-24
NORTHEAST OF ASH BASIN
I
INFILTRATION
WELLS

24" X 24" CONCRETE VAULT WITH
A HIGHWAY RATED COVER r 6" SEALED LOCKING CAP (PRIOR TO SYSTEM CONNECTION)
CONCRETE APRON (48" X 48" SQUARE)
EXISTING GRADE SLOPED AWAY FROM WELL
CENTRALIZERS SF
BE PLACE[
50-FEET INTERV
TOTAL WELL DEPTH
" SEE FIGURE DIMENc
"A" IN WELL TABLE
PORTLAND TYPE 1/II NEAT CEMENT (TOP
OF BENTONITE SEAL TO SURFACE)
10" DIA. DRILLED HOLE
2-FEET BENTONITE PELLETS/CHIPS
SAND PACK
(BOTTOM OF WELL TO 2 FT. ABOVE WELL SCREEN)
DEPTH OF WELL SUMP
" SEE FIGURE DIMENSION "C"
IN WELL TABLE
WELL MATERIALS:
1. SAPROLITE, TRANSITION ZONE, AND BEDROCK EXTRACTION
WELLS WILL BE CONSTRUCTED OF 6-INCH DIAMETER 0.010-INCH
SLOTTED STAINLESS -STEEL WIRE -WRAPPED SCREEN AND
SCHEDULE 80 POLYVINYL CHLORIDE (PVC) RISER.

24" X 24" CONCRETE VAULT WITH
A HIGHWAY RATED COVER r 10" SEALED LOCKING CAP (PRIOR TO SYSTEM CONNECTION)
EXISTING GRADE
TOTAL WELL DEPTH
SEE FIGURE DIMEN:
"A" IN WELL TABLE
CONCRETE APRON (48" X 48" SQUARE)
SLOPED AWAY FROM WELL
14" DIA. DRILLED HOLE
PORTLAND TYPE 1/11 NEAT CEMENT
(TOP OF FINE SAND TO SURFACE)
CONDUCTOR CASING - SCH 80
PVC' SEE FIGURE DIMENSION
"B" IN WELL TABLE
9 7" DIA. DRILLED HOLE
OPEN BOREHOLE
WELL MATERIALS:
1. BEDROCK EXTRACTION WELLS WILL BE COMPLETED AS OPEN BOREHOLE
WELLS IF BEDROCK INTEGRITY WITHIN THE BOREHOLE REMAINS STABLE. IF
THE BOREHOLE IS NOT STABLE, BEDROCK EXTRACTION WELLS WILL BE
CONSTRUCTED OF 6-INCH DIAMETER, 0.010-INCH SLOTTED
STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80 POLYVINYL
CHLORIDE (PVC) RISER.

24" X 24" CONCRETE VAULT WITH r 6" SEALED LOCKING CAP (PRIOR TO SYSTEM CONNECTION)
A HIGHWAY RATED COVER
i CONCRETE APRON (48" X 48" SQUARE)
EXISTING GRADE SLOPED AWAY FROM WELL
CENTRALIZERS SHALL
BE PLACED AT
50-FEET INTERVALS
TOTAL WELL DEPTH -
* SEE FIGURE DIMENSION
"A" IN WELL TABLE
PORTLAND TYPE 1/11 NEAT CEMENT
(TOP OF FINE SAND TO SURFACE)
10" DIA. DRILLED HOLE
2-FEET OF FINE SAND AND 2-FEET OF
VERY FINE SAND (4 FT. THICKNESS TOTAL)
SAND PACK
(BOTTOM OF SUMP TO 2 FT. ABOVE WELL SCREEN)
DEPTH OF WELL SUMP
* SEE FIGURE DIMENSION "C'
IN WELL TABLE
WELL MATERIALS:
1. SAPROLITE AND TRANSITION ZONE CLEAN WATER INFILTRATION WELLS
WILL BE CONSTRUCTED OF 6-INCH DIAMETER, 0.010-INCH
SLOTTED STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80
POLYVINYL CHLORIDE (PVC) RISER.

C:\Users\MAdams\ARCADIS\Duke Energy Team Site - Drawings\Marshall\DW G\Workplan Figures\Marsh:
Layout.dwg LAYOUT: F4-7_MONITORING SAVED: 6/19/2020 1:18 PM ACADVER: 22.OS (LMS TECH) PAGESETUP: --- PLOTSTYLETABLE:--- PLOTTED: 6/19/2020 1:21 PM BY: ADAMS, MITCH
IF mw
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i
CCR�16D %CCR-16S _ ..... _
() EX-8SBR
Q EX-7SBR
CCR-15D& (2) EX-6SBR
EX-5SBR
ANN h.
EX-4SBR
's r
EX-3SBR
EX-2SBR EX-9SBR
® EX-1SBR
EX-10SBR
"' — ESTIMATED LOCATION OF
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\ \ � NORTH SIDE SLOPE
\
\\ MW-14BR;�.
� � MW-146RL
MW-14S
i
-14D- -
EX-11SBR �• �;; ®�N�2O _X-56SBR GWA-10D
EX -13SB'�EX-57SBR
N-4
EX13SBR \\ � IN-15
�0 \ EX-58SBR EMP-4S
J EX-14SBR \\ 50 IN-16 EEMP-D4BR
6 X-59SBR
AL-1S AL-1 BR ® IN-17
'AL-1 D \ W EX-60SBR
I.. AL-1 BRL\ ® • IN-18
EX-15S�R \14IN-S®EX-61SBR
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NORTH ASH
BASIN DAM 7 /�
xxxx AB-1BR'
7 AB-1 BRL,
'AB-1Di E
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i AB-1 BRLL' E
AB-1 BRLLL 1-.42BR
i _EX-40B
EX-43Bj2 MMW-7S'' _3�8
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i EX-448R/
MID -POINT ASH
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lmw-
7
EX-48/
A�
/
/ EXBj
i/ EX-�OBR
' AB-2BR / /
7 / AB-2S ��151BR
AB
�j
MW-9D
i
I S
OUTH ASH
i
/ EX-52BR• BASIN DAM
EX-53BR
/
= CCR-5E
NOTES:
1. ALL BOUNDARIES ARE APPROXIMATE.
2. PROPERTY BOUNDARY PROVIDED BY
DUKE ENERGY CAROLINAS.
0 400' 800'
GRAPHIC SCALE
BASE MAP SOURCE: USGS Digital Orthographic
Quarter Quadrangle (DOQQ), 2018.
EX-�4BRO
EX%55,�RR
i
/
LEGEND
ASH BASIN GEOGRAPHIC LIMITATION
ASH BASIN WASTE BOUNDARY
LANDFILL BOUNDARY
LANDFILL COMPLIANCE BOUNDARY
--- DUKE ENERGY CAROLINAS MARSHALL
STEAM STATION SITE BOUNDARY
AREAS FOR DATA COLLECTION AND
HYDRAULIC TESTING
FLOW DIRECTION
® MONITOR WELL (SHALLOW ZONE)
MONITOR WELL (DEEP ZONE)
® MONITOR WELL (BEDROCK ZONE)
® PROPOSED MONITORING WELL
PROPOSED EXTRACTION WELL
(SBR = SAPROLITE/TRANSITION/BEDROCK ZONE
BR = BEDROCK ZONE)
PROPOSED INFILTRATION WELL
SURFACE WATER STILLING WELL
® NPDES OUTFALL
EMN PILOT TEST LOCATION
exriN FULL-SCALE LOCATION
BORROW
AREA
SOUTH SIDE SLOPE
NPDES OUTFALL 007
EX-29SBR
EX-30SBR
Q O EX-31 B
DUKE ENERGY
MARSHALL STEAM STATION
TERRELL, NORTH CAROLINA
MONITORING LOCATIONS
FIGURE
ARCAD IS ats IN I4-7

APPENDIX A

Appendix A
Intake Water Analytical Results
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
Total Alkalinitv ISM-2320E-20111
PARCADIS design&Consultancy
far naturaland
6uiht assets
Alkalinity, Bicarbonate
mg/L
69.4
15.0
15.2
Alkalinity, Carbonate
mg/L
<5
<5
Total Alkalinity as CaCO3
mg/L
15.0
15.2
Nitrate (EPA 353.2)
Nitrite + Nitrate (Colorimetric)
mg-N/L
6.3
0.358
0.402
Total Phosphorus (Colorimetric)
mg-P/L
0.021
0.022
Inorganic Ions (EPA 300.0)
Chloride
mg/L
250
3.4
3.4
Fluoride
mg/L
2
<0.1
<0.1
Sulfate
mg/L
250
2.8
2.8
Dissolved Metals (by ICP, EPA 200.7)
Aluminum (Al)
mg/L
1.205
<0.01
<0.01
Barium (Ba)
mg/L
0.7
0.014
0.015
Boron (B)
mg/L
0.7
<0.05
<0.05
Iron (Fe)
mg/L
1.095
0.022
0.012
Lithium (Li)
mg/L
0.0048
<0.005
<0.005
Manganese (Mn)
Mg/ L
0.155
0.014
0.026
Strontium (Sr)
mg/L
0.21
0.024
0.024
Zinc (Zn)
mg/L
31.8
<0.005
0.001734
total Metals IbV IGP LPA ZUU.71
Aluminum (Al)
mg/L
1.205
0.428
0.488
Barium (Ba)
mg/L
0.7
0.016
0.016
Boron (B)
mg/L
0.7
<0.05
<0.05
Calcium (Ca)
mg/L
10.7
3.30
3.25
Iron (Fe)
mg/L
1.095
0.362
0.411
Lithium (Li)
mg/L
0.0048
<0.005
<0.005
Magnesium (Mg)
mg/L
9.98
1.36
1.35
Manganese (Mn)
mg/L
0.155
0.042
0.055
Potassium (K)
mg/L
5
1.38
1.38
Sodium (Na)
mg/L
8.69
2.82
2.81
Strontium (Sr)
mg/L
0.21
0.025
0.024
Total Hardness (Ca and Mg)
mg/L (CaCO3)
13.9
13.7
Zinc (Zn)
mg/L
31.8
<0.005
<0.005
Dissolved Metals IbV IGP MS LPA ZUU.81
Antimony (Sb)
pg/L
1
<1
<1
Arsenic (As)
pg/L
10
<1
<1
Beryllium (Be)
pg/L
4
<1
<1
Cadmium (Cd) Low Level
pg/L
2
<0.1
<0.1
Chromium (Cr)
pg/L
16.8
<1
<1
Cobalt (Co)
pg/L
5
<1
<1
Copper (Cu)
pg/L
5
<1
<1
Lead (Pb) Low Level
pg/L
15
<0.2
<0.2
Molybdenum (Mo)
pg/L
1
<1
<1
Nickel (Ni)
pg/L
100
<1
<1
Selenium (Se)
pg/L
1
<1
<1
Silver (Ag) Low Level
pg/L
20
<0.3
<0.3
Thallium (TI) Low Level
pg/L
0.2
<0.2
<0.2
Vanadium (V) Low Level
pg/L
13
<0.3
<0.3
Page 1 of 2

Appendix A
Intake Water Analytical Results
AARCADIS design&Consultancy
far naturaland
6uiht assets
Pilot Test Work Plan
Duke Energy - Marshall Steam Station
Terrell, North Carolina
Total Metals (by ICP MS EPA 200.8)
Antimony (Sb)
pg/L
0.79
<1
<1
Arsenic (As)
N /L
10
<1
<1
Beryllium (Be)
pg/L
4
<1
<1
Cadmium (Cd) Low Level
N /L
2
<0.1
<1
Chromium (Cr)
pg/L
16.8
<1
<1
Cobalt (Co)
N /L
5
<1
<1
Copper (Cu)
pg/L
5
<1
<1
Lead (Pb) Low Level
N /L
15
<0.2
<0.2
Molybdenum (Mo)
pg/L
1
<1
<1
Nickel (Ni)
pg/L
100
<1
<1
Selenium (Se)
Ng/L
1
<1
<1
Silver (Ag) Low Level
pg/L
20
<0.3
<0.3
Thallium (TI) Low Level
pg/L
0.2
<0.2
<0.2
Vanadium (V) Low Level
pg/L
13
0.939
1.08
Geochemical Parameters
Total Dissolved Solids
mg/L
500
47
57.0
Total Organic Carbon
mg/L
2.9
1.6
1.6
Total Suspended Solids
mg/L
2.7
<2.5
pH
SU
6.49
6.21
Dissolved Oxygen (DO)
mg/L
8.03
5.6
DO Saturation
%
83
55
Temperature
C
16.3
14.2
Specific Conductance
PS/cm
49
49
General Notes:
Screening criteria used is the maximum of the 02L, IMAC, or shallow background value
—" indicates no screening value or not applicable
Footnotes:
MSS _ID-1 and MSS_ID-1 L were collected from the proposed location of the intake structure (Figure 4-1). MSS_ID-1 was
collected approximately 1 foot below the water surface. MSS—ID-1 L was collected approximately 42 feet below the water surface.
Acronyms and Abbreviations:
COI - constituent of interest
IMAC - interim maximum allowable concentration
IMP - interim monitoring plan
NE - not established
pg/L - micrograms per liter
mg/L - milligrams per liter
pCi/L - picoCuries per liter
S.U. - standard units
pS/cm - microsiemens per centimeter
°C -degrees Celsius
Page 2 of 2

DUE Analytical Laboratory PRPage 1Nof45
ENERGY
Y
Order Number:
Project Name:
Customer Name(s):
Customer Address:
Lab Contact:
Report Authorized By:
(Signature)
Program Comments:
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
J20040632
MARSHALL - MSS INFILTRATION WATER EVALUATION
Tyler Hardin, Synterra
8320 NC Hwy 150 East
Mail Code: Marshall Steam Station
Terrell, NC 28682
Peggy Kendall
Peggy Kendall
This is a preliminary report; RAD data is pending.
Data Flags & Calculations:
Phone: [phone]
Date: 5/11 /2020
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:
PRELIMINARY
Page 2 of 45
Collection
Sample ID Plant/Station Date and Time Collected By
2020011879 MARSHALL
2020011889 MARSHALL
2 Total Samples
30-Apr-20 12:10 PM
30-Apr-20 12:30 PM
Maverick Raber
Maverick Raber
Sample Description
MSS—ID-1
MSS_I D-1 L

PRELIMINARY
Page 3 of 45
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❑ No
All laboratory QA/QC requirements are acceptable. ❑ Yes 0 No
Report Sections Included:
❑ Job Summary Report
❑ Sample Identification
❑ Technical Validation of Data Package
❑ Analytical Laboratory Certificate of Analysis
❑ Analytical Laboratory QC Report
Reviewed By: Date:
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑ Chain of Custody
❑ Electronic Data Deliverable (EDD) Sent Separately

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-1
Collection Date: 04/30/2020 12:10 PM
Analyte
Result
Units Qualifiers
RDL
TOTAL ALKALINITY - Q20050122
Total Alkalinity as CaCO3
15.0
mg/L
5
Alkalinity, Carbonate
< 5
mg/L
5
Alkalinity, Bicarbonate
15.0
mg/L
5
NITRITE + NITRATE (COLORIMETRIC) - Q20050121
Nitrite + Nitrate (Colorimetric)
0.358
mg-N/L
0.01
TOTAL PHOSPHORUS (COLORIMETRIC) - Q20050083
Total Phosphorus (Colorimetric)
0.021
mg-P/L
0.005
HEXAVALENT CHROMIUM Cr(VI) -
(Analysis Performed by Pace Laboratories)
Vendor Parameter
Complete
INORGANIC IONS BY IC - Q20050008
Chloride
3.4
mg/L
0.1
Fluoride
< 0.1
mg/L
0.1
Sulfate
2.8
mg/L
0.1
MERCURY IN WATER - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - Q20050049
Aluminum (AI)
< 0.01
mg/L
0.01
Barium (Ba)
0.014
mg/L
0.005
Boron (B)
< 0.05
mg/L
0.05
Iron (Fe)
0.022
mg/L
0.01
Lithium (Li)
< 0.005
mg/L
0.005
Manganese (Mn)
0.014
mg/L
0.005
Strontium (Sr)
0.024
mg/L
0.005
Zinc (Zn)
< 0.005
mg/L
0.005
PRELIMINARY
Page 4 of 45
Sample #: 2020011879
Matrix: GW WW
DF
Method
Analysis Date/Time
Analyst
1
SM 2320B-2011
05/07/2020 14:51
PARMSTR
1
SM 2320B-2011
05/07/2020 14:51
PARMSTR
1
SM 2320B-2011
05/07/2020 14:51
PARMSTR
1
EPA 353.2
05/07/2020 13:29
MVALLIE
1
EPA 365.1
05/06/2020 10:27
MVALLIE
Vendor Method V_PACE
1 EPA 300.0
05/01/2020 17:16
BGN9034
1 EPA 300.0
05/01/2020 17:16
BGN9034
1 EPA 300.0
05/01/2020 17:16
BGN9034
Vendor Method V_PACE
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3
1 EPA 200.7
05/07/2020 14:46
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-1
Collection Date: 04/30/2020 12:10 PM
Analyte Result Units Qualifiers
TOTAL RECOVERABLE METALS BY ICP - Q20050069
Aluminum (AI)
0.428
mg/L
Barium (Ba)
0.016
mg/L
Boron (B)
< 0.05
mg/L
Calcium (Ca)
3.30
mg/L
Iron (Fe)
0.362
mg/L
Lithium (Li)
< 0.005
mg/L
Magnesium (Mg)
1.36
mg/L
Manganese (Mn)
0.042
mg/L
Potassium (K)
1.38
mg/L
Sodium (Na)
2.82
mg/L
Strontium (Sr)
0.025
mg/L
Total Hardness (Ca and Mg)
13.9
mg/L
(CaCO3)
Zinc (Zn)
< 0.005
mg/L
PRELIMINARY
Page 5 of 45
Sample #:
2020011879
Matrix:
GW WW
RDL
DF
Method
Analysis Date/Time
Analyst
0.01
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.01
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.01
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.1
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.066
1
EPA 200.7
05/07/2020 15:16
MHALL3
0.005 1 EPA 200.7 05/07/2020 15:16 MHALL3
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q20050050
Antimony (Sb)
< 1
ug/L
Arsenic (As)
< 1
ug/L
Beryllium (Be)
< 1
ug/L
Cadmium (Cd) Low Level
< 0.1
ug/L
Chromium (Cr)
< 1
ug/L
Cobalt (Co)
< 1
ug/L
Copper (Cu)
< 1
ug/L
Lead (Pb) Low Level
< 0.2
ug/L
Molybdenum (Mo)
< 1
ug/L
Nickel (Ni)
< 1
ug/L
Selenium (Se)
< 1
ug/L
Silver (Ag) Low Level
< 0.3
ug/L
Thallium (TI) Low Level
< 0.2
ug/L
Vanadium (V) Low Level
< 0.3
ug/L
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
0.1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
0.2
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
0.3
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
0.2
1
EPA 200.8
05/08/2020 17:31
CWSPEN3
0.3
1
EPA 200.8
05/08/2020 17:31
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-1
Collection Date: 04/30/2020 12:10 PM
Analyte Result Units Qualifiers RDL
TOTAL RECOVERABLE METALS BY ICP-MS - Q20050070
Antimony (Sb)
< 1
ug/L
1
Arsenic (As)
< 1
ug/L
1
Beryllium (Be)
< 1
ug/L
1
Cadmium (Cd) Low Level
< 0.1
ug/L
0.1
Chromium (Cr)
< 1
ug/L
1
Cobalt (Co)
< 1
ug/L
1
Copper (Cu)
< 1
ug/L
1
Lead (Pb) Low Level
< 0.2
ug/L
0.2
Molybdenum (Mo)
< 1
ug/L
1
Nickel (Ni)
< 1
ug/L
1
Selenium (Se)
< 1
ug/L
1
Silver (Ag) Low Level
< 0.3
ug/L
0.3
Thallium (TI) Low Level
< 0.2
ug/L
0.2
Vanadium (V) Low Level
0.939
ug/L
0.3
METHANE - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
RADIOLOGICAL - (Analysis Performed by Pace Laboratories)
Vendor Parameter
Complete
SULFIDE - (Analysis Performed bV
Pace Laboratories)
Vendor Parameter
Complete
TOTAL DISSOLVED SOLIDS - Q20050011
TDS
47.0
mg/L
25
Total Carbon - Q20050037
TOC
1.6
mg/L
0.1
Total Suspended Solids - Low RL 2.5 - Q20050036
TSS
2.7
mg/L
2.5
PRELIMINARY
Page 6 of 45
Sample #:
2020011879
Matrix:
GW WW
DF
Method
Analysis Date/Time
Analyst
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
1
EPA 200.8
05/08/2020 20:20
CWSPEN3
Vendor Method V_PACE
Vendor Method V_PACE
Vendor Method V_PACE
1 SM2540C 05/01/202010:36 GBSINGL
1 SM5310C/EPA9060A 05/05/202014:11 Ghutchi
1 SM2540D 05/04/2020 06:35 GBSINGL

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-11-
Collection Date: 04/30/2020 12:30 PM
Analyte
Result
Units Qualifiers
RDL
TOTAL ALKALINITY - Q20050122
Total Alkalinity as CaCO3
15.2
mg/L
5
Alkalinity, Carbonate
< 5
mg/L
5
Alkalinity, Bicarbonate
15.2
mg/L
5
NITRITE + NITRATE (COLORIMETRIC) - Q20050121
Nitrite + Nitrate (Colorimetric)
0.402
mg-N/L
0.01
TOTAL PHOSPHORUS (COLORIMETRIC) - Q20050083
Total Phosphorus (Colorimetric)
0.022
mg-P/L
0.005
HEXAVALENT CHROMIUM Cr(VI) -
(Analysis Performed by Pace Laboratories)
Vendor Parameter
Complete
INORGANIC IONS BY IC - Q20050008
Chloride
3.4
mg/L
0.1
Fluoride
< 0.1
mg/L
0.1
Sulfate
2.8
mg/L
0.1
MERCURY IN WATER - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - Q20050049
Aluminum (AI)
< 0.01
mg/L
0.01
Barium (Ba)
0.015
mg/L
0.005
Boron (B)
< 0.05
mg/L
0.05
Iron (Fe)
0.012
mg/L
0.01
Lithium (Li)
< 0.005
mg/L
0.005
Manganese (Mn)
0.026
mg/L
0.005
Strontium (Sr)
0.024
mg/L
0.005
Zinc (Zn)
< 0.005
mg/L
0.005
PRELIMINARY
Page 7 of 45
Sample #: 2020011889
Matrix: GW WW
DF
Method
Analysis Date/Time
Analyst
1
SM 2320B-2011
05/07/2020 14:55
PARMSTR
1
SM 2320B-2011
05/07/2020 14:55
PARMSTR
1
SM 2320B-2011
05/07/2020 14:55
PARMSTR
1
EPA 353.2
05/07/2020 13:30
MVALLIE
1
EPA 365.1
05/06/2020 10:28
MVALLIE
Vendor Method V_PACE
1 EPA 300.0
05/01/2020 17:45
BGN9034
1 EPA 300.0
05/01/2020 17:45
BGN9034
1 EPA 300.0
05/01/2020 17:45
BGN9034
Vendor Method V_PACE
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3
1 EPA 200.7
05/07/2020 14:50
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-11-
Collection Date: 04/30/2020 12:30 PM
Analyte Result Units Qualifiers
TOTAL RECOVERABLE METALS BY ICP - Q20050069
Aluminum (AI)
0.488
mg/L
Barium (Ba)
0.016
mg/L
Boron (B)
< 0.05
mg/L
Calcium (Ca)
3.25
mg/L
Iron (Fe)
0.411
mg/L
Lithium (Li)
< 0.005
mg/L
Magnesium (Mg)
1.35
mg/L
Manganese (Mn)
0.055
mg/L
Potassium (K)
1.38
mg/L
Sodium (Na)
2.81
mg/L
Strontium (Sr)
0.024
mg/L
Total Hardness (Ca and Mg)
13.7
mg/L
(CaCO3)
Zinc (Zn)
< 0.005
mg/L
PRELIMINARY
Page 8 of 45
Sample #:
2020011889
Matrix:
GW WW
RDL
DF
Method
Analysis Date/Time
Analyst
0.01
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.01
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.01
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.1
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.05
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.005
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.066
1
EPA 200.7
05/07/2020 15:52
MHALL3
0.005 1 EPA 200.7 05/07/2020 15:52 MHALL3
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q20050050
Antimony (Sb)
< 1
ug/L
Arsenic (As)
< 1
ug/L
Beryllium (Be)
< 1
ug/L
Cadmium (Cd) Low Level
< 0.1
ug/L
Chromium (Cr)
< 1
ug/L
Cobalt (Co)
< 1
ug/L
Copper (Cu)
< 1
ug/L
Lead (Pb) Low Level
< 0.2
ug/L
Molybdenum (Mo)
< 1
ug/L
Nickel (Ni)
< 1
ug/L
Selenium (Se)
< 1
ug/L
Silver (Ag) Low Level
< 0.3
ug/L
Thallium (TI) Low Level
< 0.2
ug/L
Vanadium (V) Low Level
< 0.3
ug/L
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
0.1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
0.2
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
1
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
0.3
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
0.2
1
EPA 200.8
05/08/2020 17:40
CWSPEN3
0.3
1
EPA 200.8
05/08/2020 17:40
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Site: MSS ID-11-
Collection Date: 04/30/2020 12:30 PM
Analyte Result Units Qualifiers RDL
TOTAL RECOVERABLE METALS BY ICP-MS - Q20050070
Antimony (Sb)
< 1
ug/L
1
Arsenic (As)
< 1
ug/L
1
Beryllium (Be)
< 1
ug/L
1
Cadmium (Cd) Low Level
< 0.1
ug/L
0.1
Chromium (Cr)
< 1
ug/L
1
Cobalt (Co)
< 1
ug/L
1
Copper (Cu)
< 1
ug/L
1
Lead (Pb) Low Level
< 0.2
ug/L
0.2
Molybdenum (Mo)
< 1
ug/L
1
Nickel (Ni)
< 1
ug/L
1
Selenium (Se)
< 1
ug/L
1
Silver (Ag) Low Level
< 0.3
ug/L
0.3
Thallium (TI) Low Level
< 0.2
ug/L
0.2
Vanadium (V) Low Level
1.08
ug/L
0.3
METHANE - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
RADIOLOGICAL - (Analysis Performed by Pace Laboratories)
Vendor Parameter
Complete
SULFIDE - (Analysis Performed bV
Pace Laboratories)
Vendor Parameter
Complete
TOTAL DISSOLVED SOLIDS - Q20050011
TDS
57.0
mg/L
25
Total Carbon - Q20050037
TOC
1.6
mg/L
0.1
Total Suspended Solids - Low RL 2.5 - Q20050036
TSS
< 2.5
mg/L
2.5
PRELIMINARY
Page 9 of 45
Sample #:
2020011889
Matrix:
GW WW
DF
Method
Analysis Date/Time
Analyst
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
1
EPA 200.8
05/08/2020 18:55
CWSPEN3
Vendor Method V_PACE
Vendor Method V_PACE
Vendor Method V_PACE
1 SM2540C 05/01/202010:37 GBSINGL
1 SM5310C/EPA9060A 05/05/202014:11 Ghutchi
1 SM2540D 05/04/2020 06:36 GBSINGL

PRELIMINARY
Certificate of Laboratory Analysis Page 10of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050122 ALK_CarbBicarb TOTAL ALKALINITY
Duplicate # 1
Parent Sample:
J20040580 -- 2020011582
Parameter
Measured
Final
Units:
Dil
Limit Range
RPD
Qualifier
Alkalinity, Bicarbonate
23.7
23.7
mg/L
1
0 - 20%
1.3
Alkalinity, Carbonate
0
0
mg/L
1
0- 20%
0
Total Alkalinity as CaCO3
23.7
23.7
mg/L
1
0 - 20%
1.3
Duplicate # 2
Parent Sample:
J20050105 --
2020012231
Parameter
Measured
Final
Units:
Dil
Limit Range
RPD
Qualifier
Alkalinity, Bicarbonate
33.5
33.5
mg/L
1
0 - 20%
2.3
Alkalinity, Carbonate
0
0
mg/L
1
0- 20%
0
Total Alkalinity as CaCO3
33.5
33.5
mg/L
1
0 - 20%
2.3
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Total Alkalinity as CaCO3
107
107
mg/L
1
105
102 85
115
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Total Alkalinity as CaCO3
108
108
mg/L
1
105
103 85
115

PRELIMINARY
Certificate of Laboratory Analysis Page 11 of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050121 C_NO2NO3 NITRITE + NITRATE (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0001
-0.0001
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
0.0003
0.0003
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 3
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
0.0003
0.0003
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 4
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
0.0002
0.0002
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.123
1.23
mg-N/L
10
1.21
102 90
110
(Colorimetric)
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.123
1.24
mg-N/L
10
1.21
102 90
110
(Colorimetric)
LCS # 3
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.124
1.24
mg-N/L
10
1.21
103 90
110
(Colorimetric)
LCS # 4
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.123
1.23
mg-N/L
10
1.21
102 90
110
(Colorimetric)
MS # 1
Parent Sample:
J20040353
-- 2020010300
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.251
0.251
mg-N/L
1
0.25
99.9 90
110
(Colorimetric)
MSD # 1
Parent Sample:
J20040353
-- 2020010300
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
Nitrite + Nitrate
0.247
0.247
mg-N/L
1
0.25
98.6 90
110
1.33
(Colorimetric)

PRELIMINARY
Certificate of Laboratory Analysis Page 12 of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050083 C_TP TOTAL PHOSPHORUS (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Total Phosphorus
0.0016
0.0016
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Total Phosphorus
0.0009
0.0009
(Colorimetric)
LCS # 1
Parameter Measured Final
Total Phosphorus 0.102 1.02
(Colorimetric)
LCS # 2
Parameter Measured Final
Total Phosphorus 0.102 1.02
(Colorimetric)
MS # 1
Parameter
Measured
Final
Total Phosphorus
0.0566
0.0566
(Colorimetric)
MSD # 1
Parameter
Measured
Final
Total Phosphorus
0.0561
0.0561
(Colorimetric)
Units: Dil RDL Relative Concentration Qualifier
mg-P/L 1 0.005 < 1/2 RDL
Units: Dil RDL Relative Concentration Qualifier
mg-P/L 1 0.005 < 1/2 RDL
Units: Dil Spike % Recovery LCL UCL Qualifier
mg-P/L 10 0.953 108 90 110
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
mg-P/L
10
0.953
107 90
110
Parent Sample:
J20030207 -- 2020006491
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
mg-P/L
1
0.05
107 90
110
Parent Sample:
J20030207 -- 2020006491
Units:
Dil
Spike
% Recovery LCL
UCL RPD Qualifier
mg-P/L
1
0.05
106 90
110 0.887 -

PRELIMINARY
Certificate of Laboratory Analysis Page 13of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050008 Dionex INORGANIC IONS BY IC
Blank # 1
LCS # 1
MS # 1
MSD # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Chloride
0
0
mg/L
1
0.1
< 1/2 RDL
Fluoride
0
0
mg/L
1
0.1
< 1/2 RDL
Sulfate
0
0
mg/L
1
0.1
< 1/2 RDL
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
5.02
5.02
mg/L
1
5
100 90
110
Fluoride
5.23
5.23
mg/L
1
5
105 90
110
Sulfate
5.01
5.01
mg/L
1
5
100 90
110
Parent Sample:
J20040353
-- 2020010300
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
6.23
623
mg/L
100
200
108 80
120
Fluoride
1.98
198
mg/L
100
200
98.9 80
120
Sulfate
8.3
830
mg/L
100
200
104 80
120
Parent Sample:
J20040353
-- 2020010300
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD
Qualifier
Chloride
6.21
621
mg/L
100
200
106 80
120
1.23
Fluoride
1.95
195
mg/L
100
200
97.3 80
120
1.69
Sulfate
8.26
826
mg/L
100
200
102 80
120
1.9

PRELIMINARY
Certificate of Laboratory Analysis Page 14of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050049 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (AI)
0.000555
0.000555
mg/L
1
0.01
< 1/2 RDL
Barium (Ba)
-0.000301
-0.000301
mg/L
1
0.005
< 1/2 RDL
Boron (B)
-0.000032
-0.000032
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.000229
0.000229
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
-0.00232
-0.00232
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
-0.000267
-0.000267
mg/L
1
0.005
< 1/2 RDL
Strontium (Sr)
-0.000172
-0.000172
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
-0.00117
-0.00117
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
4.62
4.62
mg/L
1
5
92.4
85
115
Barium (Ba)
4.71
4.71
mg/L
1
5
94.2
85
115
Boron (B)
4.73
4.73
mg/L
1
5
94.7
85
115
Iron (Fe)
4.68
4.68
mg/L
1
5
93.6
85
115
Lithium (Li)
4.67
4.67
mg/L
1
5
93.5
85
115
Manganese (Mn)
4.73
4.73
mg/L
1
5
94.6
85
115
Strontium (Sr)
4.62
4.62
mg/L
1
5
92.4
85
115
Zinc (Zn)
4.77
4.77
mg/L
1
5
95.4
85
115
LCSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (AI)
4.77
4.77
mg/L
1
5
95.3
85
115
3.09
Barium (Ba)
4.85
4.85
mg/L
1
5
97
85
115
2.97
Boron (B)
4.87
4.87
mg/L
1
5
97.4
85
115
2.81
Iron (Fe)
4.83
4.83
mg/L
1
5
96.7
85
115
3.22
Lithium (Li)
4.88
4.88
mg/L
1
5
97.6
85
115
4.29
Manganese (Mn)
4.88
4.88
mg/L
1
5
97.6
85
115
3.16
Strontium (Sr)
4.8
4.8
mg/L
1
5
96
85
115
3.84
Zinc (Zn)
4.92
4.92
mg/L
1
5
98.4
85
115
3.08

PRELIMINARY
Certificate of Laboratory Analysis Page 15of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050069 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (AI)
0.00053
0.00053
mg/L
1
0.01
< 1/2 RDL
Barium (Ba)
-0.000289
-0.000289
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.00132
0.00132
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.00203
0.00203
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.00324
0.00324
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
-0.00243
-0.00243
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
-0.00173
-0.00173
mg/L
1
0.01
< 1/2 RDL
Manganese (Mn)
-0.000141
-0.000141
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
-0.00817
-0.00817
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
-0.00717
-0.00717
mg/L
1
0.05
< 1/2 RDL
Strontium (Sr)
-0.000223
-0.000223
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
-0.00117
-0.00117
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
4.63
4.63
mg/L
1
5
92.6
85
115
Barium (Ba)
4.67
4.67
mg/L
1
5
93.5
85
115
Boron (B)
4.68
4.68
mg/L
1
5
93.6
85
115
Calcium (Ca)
4.55
4.55
mg/L
1
5
91
85
115
Iron (Fe)
4.62
4.62
mg/L
1
5
92.4
85
115
Lithium (Li)
4.69
4.69
mg/L
1
5
93.8
85
115
Magnesium (Mg)
4.64
4.64
mg/L
1
5
92.9
85
115
Manganese (Mn)
4.71
4.71
mg/L
1
5
94.2
85
115
Potassium (K)
4.7
4.7
mg/L
1
5
94
85
115
Sodium (Na)
4.6
4.6
mg/L
1
5
92.1
85
115
Strontium (Sr)
4.62
4.62
mg/L
1
5
92.3
85
115
Zinc (Zn)
4.77
4.77
mg/L
1
5
95.4
85
115
MS # 1
Parent Sample:
J20040632 -- 2020011879
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
5.15
5.15
mg/L
1
5
94.4
70
130
Barium (Ba)
4.84
4.84
mg/L
1
5
96.5
70
130
Boron (B)
4.92
4.92
mg/L
1
5
98
70
130
Calcium (Ca)
8.03
8.03
mg/L
1
5
94.7
70
130
Iron (Fe)
5.14
5.14
mg/L
1
5
95.5
70
130
Lithium (Li)
4.82
4.82
mg/L
1
5
96.4
70
130
Magnesium (Mg)
6.16
6.16
mg/L
1
5
96
70
130
Manganese (Mn)
4.91
4.91
mg/L
1
5
97.3
70
130
Potassium (K)
6.22
6.22
mg/L
1
5
96.9
70
130
Sodium (Na)
7.57
7.57
mg/L
1
5
95
70
130

PRELIMINARY
Certificate of Laboratory Analysis Page 16of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050069 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MS # 1
Parameter
Measured
Strontium (Sr)
4.75
Zinc (Zn)
4.9
MSD # 1
Parameter
Measured
Aluminum (AI)
4.95
Barium (Ba)
4.63
Boron (B)
4.61
Calcium (Ca)
7.7
Iron (Fe)
4.9
Lithium (Li)
4.71
Magnesium (Mg)
5.9
Manganese (Mn)
4.69
Potassium (K)
5.98
Sodium (Na)
7.29
Strontium (Sr)
4.64
Zinc (Zn)
4.69
Parent Sample:
J20040632 -- 2020011879
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
4.75
mg/L
1
5
94.5 70
130
4.9
mg/L
1
5
98 70
130
Parent Sample:
J20040632
-- 2020011879
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
4.95
mg/L
1
5
90.5 70
130
3.88
4.63
mg/L
1
5
92.3 70
130
4.39
4.61
mg/L
1
5
91.8 70
130
6.5
7.7
mg/L
1
5
87.9 70
130
4.29
4.9
mg/L
1
5
90.8 70
130
4.74
4.71
mg/L
1
5
94.2 70
130
2.33
5.9
mg/L
1
5
90.6 70
130
4.44
4.69
mg/L
1
5
92.9 70
130
4.61
5.98
mg/L
1
5
91.9 70
130
4.08
7.29
mg/L
1
5
89.4 70
130
3.78
4.64
mg/L
1
5
92.4 70
130
2.3
4.69
mg/L
1
5
93.8 70
130
4.36

PRELIMINARY
Certificate of Laboratory Analysis Page 17of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050050 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Antimony (Sb)
-0.011
-0.011
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.006
0.006
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
-0.032
-0.032
ug/L
1
1
< 1/2 RDL
Cadmium (Cd) Low Level
0.001
0.001
ug/L
1
0.1
< 1/2 RDL
Chromium (Cr)
0.091
0.091
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.001
0.001
ug/L
1
1
< 1/2 RDL
Copper (Cu)
0.014
0.014
ug/L
1
1
< 1/2 RDL
Lead (Pb) Low Level
-0.009
-0.009
ug/L
1
0.2
< 1/2 RDL
Molybdenum (Mo)
0.001
0.001
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.136
-0.136
ug/L
1
1
< 1/2 RDL
Selenium (Se)
0.006
0.006
ug/L
1
1
< 1/2 RDL
Silver (Ag) Low Level
-0.001
-0.001
ug/L
1
0.3
< 1/2 RDL
Thallium (TI) Low Level
0.036
0.036
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.096
0.096
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.4
50.4
ug/L
1
50
101
85
115
Arsenic (As)
51
51
ug/L
1
50
102
85
115
Beryllium (Be)
50.3
50.3
ug/L
1
50
101
85
115
Cadmium (Cd) Low Level
52
52
ug/L
1
50
104
85
115
Chromium (Cr)
51.3
51.3
ug/L
1
50
103
85
115
Cobalt (Co)
52.3
52.3
ug/L
1
50
105
85
115
Copper(Cu)
52.2
52.2
ug/L
1
50
104
85
115
Lead (Pb) Low Level
51.3
51.3
ug/L
1
50
103
85
115
Molybdenum (Mo)
53.7
53.7
ug/L
1
50
107
85
115
Nickel (Ni)
52
52
ug/L
1
50
104
85
115
Selenium (Se)
48.8
48.8
ug/L
1
50
97.7
85
115
Silver (Ag) Low Level
53.7
53.7
ug/L
1
50
107
85
115
Thallium (TI) Low Level
49.4
49.4
ug/L
1
50
98.8
85
115
Vanadium (V) Low Level
50.7
50.7
ug/L
1
50
101
85
115
LCSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Antimony (Sb)
51.9
51.9
ug/L
1
50
104
85
115
2.88
Arsenic (As)
53
53
ug/L
1
50
106
85
115
3.85
Beryllium (Be)
51.8
51.8
ug/L
1
50
104
85
115
3.02
Cadmium (Cd) Low Level
53.4
53.4
ug/L
1
50
107
85
115
2.68
Chromium (Cr)
53.3
53.3
ug/L
1
50
107
85
115
3.65
Cobalt (Co)
53.2
53.2
ug/L
1
50
106
85
115
1.69

PRELIMINARY
Certificate of Laboratory Analysis Page 18of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050050 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
LCSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Copper(Cu)
53.8
53.8
ug/L
1
50
108
85
115
3
Lead(Pb)Low Level
52.6
52.6
ug/L
1
50
105
85
115
2.47
Molybdenum (Mo)
55.1
55.1
ug/L
1
50
110
85
115
2.61
Nickel (Ni)
53.7
53.7
ug/L
1
50
107
85
115
3.24
Selenium (Se)
50.5
50.5
ug/L
1
50
101
85
115
3.34
Silver (Ag) Low Level
55.4
55.4
ug/L
1
50
111
85
115
3.14
Thallium (TI) Low Level
50.8
50.8
ug/L
1
50
102
85
115
2.77
Vanadium (V) Low Level
52.1
52.1
ug/L
1
50
104
85
115
2.75

PRELIMINARY
Certificate of Laboratory Analysis Page 19of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050070 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Antimony (Sb)
-0.021
-0.021
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.015
0.015
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
-0.024
-0.024
ug/L
1
1
< 1/2 RDL
Cadmium (Cd) Low Level
0
0
ug/L
1
0.1
< 1/2 RDL
Chromium (Cr)
-0.002
-0.002
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.004
0.004
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.53
-0.53
ug/L
1
1
< 1/2 RDL
Lead (Pb) Low Level
-0.008
-0.008
ug/L
1
0.2
< 1/2 RDL
Molybdenum (Mo)
0.005
0.005
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.223
-0.223
ug/L
1
1
< 1/2 RDL
Selenium (Se)
-0.004
-0.004
ug/L
1
1
< 1/2 RDL
Silver (Ag) Low Level
0
0
ug/L
1
0.3
< 1/2 RDL
Thallium (TI) Low Level
0.036
0.036
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.016
0.016
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
49.7
49.7
ug/L
1
50
99.3
85
115
Arsenic (As)
51.5
51.5
ug/L
1
50
103
85
115
Beryllium (Be)
49.2
49.2
ug/L
1
50
98.3
85
115
Cadmium (Cd) Low Level
51.9
51.9
ug/L
1
50
104
85
115
Chromium (Cr)
50.8
50.8
ug/L
1
50
102
85
115
Cobalt (Co)
52.8
52.8
ug/L
1
50
106
85
115
Copper(Cu)
51.8
51.8
ug/L
1
50
104
85
115
Lead (Pb) Low Level
50.7
50.7
ug/L
1
50
101
85
115
Molybdenum (Mo)
53
53
ug/L
1
50
106
85
115
Nickel (Ni)
52.8
52.8
ug/L
1
50
106
85
115
Selenium (Se)
49.3
49.3
ug/L
1
50
98.7
85
115
Silver (Ag) Low Level
53.3
53.3
ug/L
1
50
107
85
115
Thallium (TI) Low Level
49.1
49.1
ug/L
1
50
98.3
85
115
Vanadium (V) Low Level
49.8
49.8
ug/L
1
50
99.7
85
115
MS # 1
Parent Sample:
J20040632 -- 2020011889
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.9
50.9
ug/L
1
50
102
70
130
Arsenic (As)
52.3
52.3
ug/L
1
50
104
70
130
Beryllium (Be)
51.1
51.1
ug/L
1
50
102
70
130
Cadmium (Cd) Low Level
52.7
52.7
ug/L
1
50
105
70
130
Chromium (Cr)
52.9
52.9
ug/L
1
50
105
70
130
Cobalt (Co)
54.1
54.1
ug/L
1
50
108
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050070 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Copper (Cu)
54.6
54.6
ug/L
1
50
Lead (Pb) Low Level
52.5
52.5
ug/L
1
50
Molybdenum (Mo)
53.8
53.8
ug/L
1
50
Nickel (Ni)
54.6
54.6
ug/L
1
50
Selenium (Se)
49.1
49.1
ug/L
1
50
Silver (Ag) Low Level
54.5
54.5
ug/L
1
50
Thallium (TI) Low Level
50.3
50.3
ug/L
1
50
Vanadium (V) Low Level
53.5
53.5
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.7
50.7
ug/L
1
50
Arsenic (As)
51.4
51.4
ug/L
1
50
Beryllium (Be)
50
50
ug/L
1
50
Cadmium (Cd) Low Level
51.9
51.9
ug/L
1
50
Chromium (Cr)
52.4
52.4
ug/L
1
50
Cobalt (Co)
53.1
53.1
ug/L
1
50
Copper(Cu)
54
54
ug/L
1
50
Lead (Pb) Low Level
52.1
52.1
ug/L
1
50
Molybdenum (Mo)
53.1
53.1
ug/L
1
50
Nickel (Ni)
53.3
53.3
ug/L
1
50
Selenium (Se)
48.6
48.6
ug/L
1
50
Silver (Ag) Low Level
53.7
53.7
ug/L
1
50
Thallium (TI) Low Level
50.4
50.4
ug/L
1
50
Vanadium (V) Low Level
52.5
52.5
ug/L
1
50
PRELIMINARY
Page 20 of 45
Parent Sample: J20040632 -- 2020011889
% Recovery
LCL
UCL Qualifier
107
70
130
105
70
130
107
70
130
109
70
130
98.1
70
130
109
70
130
100
70
130
105
70
130
Parent Sample: J20040632 -- 2020011889
% Recovery
LCL
UCL
RPD Qualifier
101
70
130
0.561
102
70
130
1.83
100
70
130
2.09
104
70
130
1.51
104
70
130
0.984
106
70
130
1.84
106
70
130
1.19
104
70
130
0.857
106
70
130
1.26
106
70
130
2.37
97.2
70
130
0.928
107
70
130
1.34
101
70
130
0.247
103
70
130
1.86

PRELIMINARY
Certificate of Laboratory Analysis Page21 of45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050011 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TDS
5
mg/L
1
25
< 1/2 RDL
Duplicate # I
Parent Sample:
J20040621 -- 2020011814
Parameter
Measured
Final
Units:
Dil
Limit Range RPD Qualifier
TDS
33
mg/L
1
3.08
Duplicate # 2
Parent Sample:
J20040621 -- 2020011815
Parameter
Measured
Final
Units:
Dil
Limit Range RPD Qualifier
TDS
80
mg/L
1
2.47
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
TDS
987
mg/L
1
1000
98.7 90
110

PRELIMINARY
Certificate of Laboratory Analysis Page 22 of 45
This report shall not be reproduced, except in full.
Order # J20040632
Level II QC Summary
Q20050037 Total Carbon Total Carbon
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.022
0.022
mg/L
1
0.1
< 1/2 RDL
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.022
0.022
mg/L
1
0.1
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.82
2.82
mg/L
1
2.71
104 85
115
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
3.06
3.06
mg/L
1
2.71
113 85
115
MS # 1
Parent Sample:
J20040580
-- 2020011582
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
3.06
3.06
mg/L
1
2
119 80
120
MSD # 1
Parent Sample:
J20040580
-- 2020011582
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
TOC
3.01
3.01
mg/L
1
2
116 80
120
2.39

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
PRELIMINARY
Page 23 of 45
Order # J20040632
Level II QC Summary
Q20050036 TSS_LL Total Suspended Solids - Low RL 2.5
Blank # 1
Parameter Measured Final Units: Dil RDL Relative Concentration Qualifier
TSS 0 mg/L 1 2.5 < 1/2 RDL

leAnalyiical
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PM,C lfR� Services, LLC
F 1098 %960�e. Suite 100
Huntersville, NC 28078
[phone]
May 08, 2020
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg.7405 MG30A2
Huntersville, NC 28078
RE: Project: J20040632
Pace Project No.: 92475919
Dear Program Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on May 01, 2020. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Asheville
• Pace Analytical Services - Charlotte
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
��K— ���
Tyler Forney for
Kevin Herring
[e-mail]
1(704)875-9092
HORIZON Database Administrator
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 20

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FF 0KK9tt8�L INV%ff � 960r YY e. Suite 100
Huntersville, NC 28078
[phone]
Project: J20040632
Pace Project No.: 92475919
Pace Analytical Services Charlotte
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
Louisiana/NELAP Certification # LA170028
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
Pace Analytical Services Asheville
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
South Carolina Certification #: 99006001
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 2 of 20

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[phone]
SAMPLE SUMMARY
Project: J20040632
Pace Project No.: 92475919
Lab ID
Sample ID
Matrix
Date Collected
Date Received
92475919001
92475919002
MSS ID-1 20200430 CAMA
MSS ID-1L 20200430 CAMA
Water
Water
04/30/2012:10
04/30/2012:30
05/01/2014:14
05/01/2014:14
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 3 of 20

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PM,w C lfR� Services, LLC
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Huntersville, NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project: J20040632
Pace Project No.: 92475919
Analytes
Lab ID Sample ID
Method
Analysts
Reported
Laboratory
92475919001 MSS ID-1 20200430 CAMA
RSK 175 Modified
MAD
1
PASI-C
EPA 1631E
JTH
1
PASI-A
SM 4500-S2D-2011
NAL
1
PASI-A
EPA 218.7 Rev 1.0 2011
CDC
1
PASI-A
92475919002 MSS ID-1 L 20200430 CAMA
RSK 175 Modified
MAD
1
PASI-C
EPA 1631E
JTH
1
PASI-A
SM 4500-S2D-2011
NAL
1
PASI-A
EPA 218.7 Rev 1.0 2011
CDC
1
PASI-A
PASI-A = Pace Analytical Services - Asheville
PASI-C = Pace Analytical Services - Charlotte
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 4 of 20

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[phone]
SUMMARY OF DETECTION
Project: J20040632
Pace Project No.: 92475919
Lab Sample ID
Method
Client Sample ID
Parameters
92475919001
MSS ID-1 20200430 CAMA
EPA 1631 E
Mercury
EPA 218.7 Rev 1.0 2011
Chromium, Hexavalent
92475919002
MSS ID-1 L 20200430 CAMA
EPA 1631 E
Mercury
EPA 218.7 Rev 1.0 2011
Chromium, Hexavalent
Result
Units
Report Limit
Analyzed
1.16
ng/L
0.50
05/05/2014:26
0.12
ug/L
0.025
05/05/2014:11
1.33
ng/L
0.50
05/05/2014:34
0.12
ug/L
0.025
05/05/2014:28
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Qualifiers
Page 5 of 20

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[phone]
PROJECT NARRATIVE
Project: J20040632
Pace Project No.: 92475919
Method: RSK 175 Modified
Description: RSK 175 Headspace
Client: Duke Energy
Date: May 08, 2020
General Information:
2 samples were analyzed for RSK 175 Modified by Pace Analytical Services Charlotte. All samples were received in acceptable
condition with any exceptions noted below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached
at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Duplicate Sample:
All duplicate sample results were within method acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J20040632
Pace Project No.: 92475919
Method: EPA 1631 E
Description: 1631 E Mercury,Low Level
Client: Duke Energy
Date: May 08, 2020
General Information:
2 samples were analyzed for EPA 1631 E by Pace Analytical Services Asheville. All samples were received in acceptable condition with
any exceptions noted below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of
this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with EPA 1631 E with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J20040632
Pace Project No.: 92475919
Method: SM 4500-S2D-2011
Description: 4500S2D Sulfide Water
Client: Duke Energy
Date: May 08, 2020
General Information:
2 samples were analyzed for SM 4500-S2D-2011 by Pace Analytical Services Asheville. All samples were received in acceptable
condition with any exceptions noted below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached
at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J20040632
Pace Project No.: 92475919
Method: EPA 218.7 Rev 1.0 2011
Description: 218.7 Chromium, Hexavalent
Client: Duke Energy
Date: May 08, 2020
General Information:
2 samples were analyzed for EPA 218.7 Rev 1.0 2011 by Pace Analytical Services Asheville. All samples were received in acceptable
condition with any exceptions noted below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached
at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 539642
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92474585032,92474736053
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2876436)
• Chromium. Hexavalent
• MSD (Lab ID: 2876437)
• Chromium, Hexavalent
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
REPORT OF LABORATORY ANALYSIS
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ANALYTICAL RESULTS
Project: J20040632
Pace Project No.: 92475919
Sample: MSS _ID-
1 20200430 CAMA
Parameters
Lab ID: 92475919001 Collected: 04/30/20 12:10 Received: 05/01/20 14:14 Matrix: Water
Results Units Report Limit DF Prepared Analyzed CAS No. Qual
RSK 175 Headspace
Analytical Method: RSK 175 Modified
Pace Analytical Services - Charlotte
Methane
ND ug/L 10.0
1
05/05/2015:21
74-82-8
1631E Mercury,Low Level
Analytical Method: EPA 1631 E Preparation Method:
EPA 1631 E
Pace Analytical Services -Asheville
Mercury
1.16 ng/L 0.50
1 05/03/20 21:25
05/05/20 14:26
7439-97-6
4500S21) Sulfide Water
Analytical Method: SM 4500-S2D-2011
Pace Analytical Services -Asheville
Sulfide
ND mg/L 0.10
1
05/05/2012:40
18496-25-8
218.7 Chromium, Hexavalent
Analytical Method: EPA 218.7 Rev 1.0 2011
Pace Analytical Services -Asheville
Chromium, Hexavalent
0.12 ug/L 0.025
1
05/05/20 14:11
18540-29-9
Date: 05/08/2020 11:04 AM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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ANALYTICAL RESULTS
Project: J20040632
Pace Project No.: 92475919
Sample: MSS _ID-
1 L 20200430 CAMA
Parameters
Lab ID: 92475919002 Collected: 04/30/20 12:30 Received: 05/01/20 14:14 Matrix: Water
Results Units Report Limit DF Prepared Analyzed CAS No. Qual
RSK 175 Headspace
Analytical Method: RSK 175 Modified
Pace Analytical Services - Charlotte
Methane
ND ug/L 10.0
1
05/05/2015:52
74-82-8
1631E Mercury,Low Level
Analytical Method: EPA 1631 E Preparation Method:
EPA 1631 E
Pace Analytical Services -Asheville
Mercury
1.33 ng/L 0.50
1 05/03/20 21:25
05/05/20 14:34
7439-97-6
4500S21) Sulfide Water
Analytical Method: SM 4500-S2D-2011
Pace Analytical Services -Asheville
Sulfide
ND mg/L 0.10
1
05/05/2012:40
18496-25-8
218.7 Chromium, Hexavalent
Analytical Method: EPA 218.7 Rev 1.0 2011
Pace Analytical Services -Asheville
Chromium, Hexavalent
0.12 ug/L 0.025
1
05/05/20 14:28
18540-29-9
Date: 05/08/2020 11:04 AM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 11 of 20

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[phone]
QUALITY CONTROL DATA
Project: J20040632
Pace Project No.: 92475919
QC Batch: 539782 Analysis Method: RSK 175 Modified
QC Batch Method: RSK 175 Modified Analysis Description: RSK 175 HEADSPACE
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92475919001, 92475919002
METHOD BLANK: 2877036 Matrix: Water
Associated Lab Samples: 92475919001, 92475919002
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Methane ug/L ND 10.0 05/05/2015:06
LABORATORY CONTROL SAMPLE: 2877037
Spike LCS
LCS
% Rec
Parameter Units
Conc. Result
% Rec
Limits
Qualifiers
Methane ug/L
396 462
117
70-130
MATRIX SPIKE SAMPLE: 2877039
92475919002 Spike
MS
MS
% Rec
Parameter Units
Result Conc.
Result
% Rec
Limits Qualifiers
Methane ug/L
ND 396
460
116
70-130
SAMPLE DUPLICATE: 2877038
92475919001 Dup Max
Parameter Units Result Result RPD RPD Qualifiers
Methane ug/L ND ND 20
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 05/08/2020 11:04 AM without the written consent of Pace Analytical Services, LLC. Page 12 of 20

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[phone]
QUALITY CONTROL DATA
Project: J20040632
Pace Project No.: 92475919
QC Batch: 539428 Analysis Method: EPA 1631 E
QC Batch Method: EPA 1631E Analysis Description: 1631E Mercury,Low Level
Laboratory: Pace Analytical Services -Asheville
Associated Lab Samples: 92475919001, 92475919002
METHOD BLANK: 2875538 Matrix: Water
Associated Lab Samples: 92475919001, 92475919002
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Mercury ng/L ND 0.50 05/05/2012:19
METHOD BLANK: 2875539 Matrix: Water
Associated Lab Samples: 92475919001, 92475919002
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Mercury ng/L ND 0.50 05/05/2012:57
METHOD BLANK: 2875540 Matrix: Water
Associated Lab Samples: 92475919001, 92475919002
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Mercury ng/L ND 0.50 05/05/2014:49
LABORATORY CONTROL SAMPLE: 2875541
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Mercury ng/L 5 5.21 104 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2875542 2875543
MS MSD
92475738001 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Mercury ng/L 0.00541 25 25 32.1 31.8 107 106 71-125 1 24
ug/L
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 05/08/2020 11:04 AM without the written consent of Pace Analytical Services, LLC.
Page 13 of 20

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[phone]
QUALITY CONTROL DATA
Project: J20040632
Pace Project No.: 92475919
QC Batch: 539686 Analysis Method: SM 4500-S2D-2011
QC Batch Method: SM 4500-S2D-2011 Analysis Description: 4500S2D Sulfide Water
Laboratory: Pace Analytical Services -Asheville
Associated Lab Samples: 92475919001, 92475919002
METHOD BLANK: 2876500
Matrix:
Water
Associated Lab Samples: 92475919001, 92475919002
Blank
Reporting
Parameter
Units
Result
Limit
Analyzed Qualifiers
Sulfide
mg/L
ND
0.10
05/05/2012:31
LABORATORY CONTROL SAMPLE:
2876501
Spike
LCS
LCS % Rec
Parameter
Units
Conc.
Result
% Rec Limits Qualifiers
Sulfide
mg/L
0.5
0.51
101 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2876502 2876503
MS MSD
92475588004 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Sulfide mg/L ND 0.5 0.5 0.52 0.52 103 103 80-120 0 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2876504 2876505
MS MSD
92475588005 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Sulfide mg/L ND 0.5 0.5 0.44 0.43 86 83 80-120 3 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 05/08/2020 11:04 AM without the written consent of Pace Analytical Services, LLC.
Page 14 of 20

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[phone]
QUALITY CONTROL DATA
Project: J20040632
Pace Project No.: 92475919
QC Batch: 539642 Analysis Method: EPA 218.7 Rev 1.0 2011
QC Batch Method: EPA 218.7 Rev 1.0 2011 Analysis Description: 218.7 Chromium, Hexavalent
Laboratory: Pace Analytical Services -Asheville
Associated Lab Samples: 92475919001, 92475919002
METHOD BLANK: 2876434
Matrix:
Water
Associated Lab Samples: 92475919001, 92475919002
Blank
Reporting
Parameter
Units
Result
Limit
Analyzed Qualifiers
Chromium, Hexavalent
ug/L
ND
0.025
05/05/20 04:38
LABORATORY CONTROL SAMPLE:
2876435
Spike
LCS
LCS % Rec
Parameter
Units
Conc.
Result
% Rec Limits Qualifiers
Chromium, Hexavalent
ug/L
0.1
0.095
95 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2876436 2876437
MS MSD
92474585032 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Chromium, Hexavalent ug/L ND 0.1 0.1 0.085 0.084 85 84 90-110 1 10 M1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2876438 2876439
MS MSD
92474736053 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Chromium, Hexavalent ug/L 0.47 0.1 0.1 0.58 0.57 103 98 90-110 1 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 05/08/2020 11:04 AM without the written consent of Pace Analytical Services, LLC.
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QUALIFIERS
Project: J20040632
Pace Project No.: 92475919
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
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QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
J20040632
92475919
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch Analytical Method
Batch
92475919001
MSS_ID-1_20200430_CAMA
RSK 175 Modified
539782
92475919002
MSS ID-1 L 20200430 CAMA
RSK 175 Modified
539782
92475919001
MSS_ID-1 20200430 CAMA
EPA 1631 E
539428 EPA 1631 E
539563
92475919002
MSS—ID-1 L 20200430 CAMA
EPA 1631 E
539428 EPA 1631 E
539563
92475919001
MSS_ID-1_20200430_CAMA
SM 4500-S2D-2011
539686
92475919002
MSS ID-1 L 20200430 CAMA
SM 4500-S2D-2011
539686
92475919001
MSS_ID-1_20200430_CAMA
EPA 218.7 Rev 1.0 2011
539642
92475919002
MSS—ID-1 L 20200430 CAMA
EPA 218.7 Rev 1.0 2011
539642
Date: 05/08/2020 11:04 AM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 17 of 20

PRELIMINARY
e 1 of 45
Document Name:
document Revised: February 7, 20 g
Sample Condition Upon Receipt(SCUR}
Page 1 of 2
aceAnap cal'
Document No.:
Issuing Authority:
F-CAR•CS•033-Rev.06
Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville ❑ Eden❑ Greenwood ❑ Huntersville Raleigh[] Mechanicsville❑
..Condition Client Name.- WO# : 92475919
Upon Receipt Project #:
Courier: ❑Fed Ex UPS USPS []Client
❑ Commercial /E]Pace ❑Other: 92475919
I
Custody Seal Present? Dyes �o Seals Intact? []Yes [:]No �� 1
Date/Initials Person Examining Contents: �!`U
Packing Material: []Bubble Wrap �bie Bags , [-]None ❑ Other
Thermometer/ 92T061 Type of Ice: Tet []Blue
IR Gun 10: /
Cooler Temp (°C): U� Correction Factor: Add/Subtract (^Cj +0.1
Cooler Temp Corrected (°C):
USDA Regulated Soil �/A, water sample)
did samnles nfieinate in a quarantine Zone within the United States: CA, NY, or SC (check maps]?
Biological Tiss Frozen?
❑Yes ❑N7 /A
❑None
Temp should be above freezing to VC
[]Samples out of temp criteria. Samples an ice, cooling process
has begun
Did samples originate from a foreign source (inte_rr aCunally,
❑Yes o
mcivaangnawan aria vuerco mcolr Ufes /Urvu
Comments/Dlscre ancy:
Chain of Custody Present? ves [:]No ❑N/A
1.
Samples Arrived within Hold Time? es No ❑N/A
Short Hold Time Analysis (<72 hr.)? ❑Yes No []N/A
2.
3.
Rush Turn Around Time Requested? ❑Yes Nu ❑NIA
4-
Sufficient Volume? _1E,, ❑Na [:]N/A
S.
I
Correct Containers Used? rdres ❑No ❑N/A
-Pace Containers Used? es [-]NO ❑N/A
6.
Containers Intact? Yes ❑No ❑N/A
7.
Dissolved analysis; Samples Field Filtered? []Yes ❑No N/A
H.
es No N/A
9.
-Includes Date/Time/lo/Analysis Matrix:
Heads ace in VOA Vials {>S-Gmmj? []Yes 01 0 ❑N/A
10.
Trip Blank Present? []Yes 2 ❑N/A
Trip Blank Custody Seals Present? ❑ves ❑No mn—NIA
11,
COMMENTS/SAMPLE DISCREPANCY
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
Date/Time:
Lot ID of split containers:
Date:
Date:
Field Data Required? []Yes []No
Page 18 of 20

PRELIMINARY
e of 45
Document Name:
Document Revised: February 1, 2 gg
Analytical
sample Conditlan Upon Recel t(5CUR)
Page 1 of 2
Document No.:
Issuing Authority:
F-CAA-CS-033-Rem.06
Pace Carollnas Quality Office
*Check mark top half of box if pH and/or dechlorination is
verified and within the acceptance range for preservation
samples.
Errceptlons: VOA, Cvliform, TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg
'"*Bottom half of box is to list number of bottle
Project # WOE ; 92475919
PM: KLH1 Due Date: 03/07/20
CLIENT, 92—Duke Ener
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pH Adjustment Log for Preserved Samples
Sample Ill
Type of Preservative
pH upon retelpt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
Lot k
Note: Whenever there Is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina OEHNR Certification Office (i.e.
Out of hold, Incorrect preservative, out of temp, InWrrett containers.
Page 19 of 20

-----------
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
PRELIMINARY
_ ___ _ _
Duke Energy
Duke Energy Analytical Lat3ora[ory --i i- _----.-------------- --- Analytical Laborato­ Use Only -................. -------------------------
i
Page 43 of 45 0
Analytical Laboratory
j
Chain of Custody &
M-d C°a. MG03A2 ie.11di a 74051
13339 H.e.n r.rry Rd
MununWlla, N. C. Zr076
; # , t!/� .7 Matrix GW YUW
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DISTRIBUTION
Sample Log 17w1 crs-sxu
, rLoae.d ey
; r %7
Date Tt . d /
l//((
t.l
SAMPLE PROGRAM
G d W '
ORIGINAL to LAB, COPY So CLIENT \ `
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Project Name: MSS Infiltration Water Evaluation
Client: Tyler Hardin, Synterra
Operating UnW MSUO
Process: NGRDWTR
Account
Project: AMS00o540
Acltiviry Ip:
Facility ID:MS
Program! EQuiS Task Code:
Sub-Program/Task Code:
Station: Marshall
roan atar_X_ HPDES_
!Vendor PACE Drinking Wn1or_ UST_
RCRA Waste _
. Cool.f TamP.l��._.._.. .._.._..
PACE _.._. _.._.._.._..
PO #S61194 tratinn u.a5 um
( ) b Unfiltered 43- nh.r.d
Preservative Ic. Non. . = —
Container Volume (mL) 40 ml 500 250 250 IL �m
Container Type glass PET glass HOPE HOPE
Sample Description or ID
p P Customer fo complete afI appropriate
non -shaded areas.
- _.._.._.._.._.._ _-
{ Collection Information
i GPS Location
Date Time Signature
m
ai
,�
'C° .-
m to
>:
N
m ra
ro e
5 I
U) >
o
m
u
m a
cr 1
2 ?
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2
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—+ a
0
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MSS-ID-7
35.605135°,-80.956685'
y,' 3 i
, zl il
X
2
1
2
1
2
Mi 5S-ID L
2'ottbottom atabove location
{IS 12d
113C
%i car .��
X
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1
2
1
2
i
i
M .ftb
MS"B
i
ustomer to sl n & date below
Relinquished Byk' DatelTlme
1�.7.�.
1 y 3 c 2 / t/Ef
Relinquished 6 _ pa ferTIIne i
By:
Sealed/Lock Opened By
TOTAL
0 I 4
Datelrlme
LI-_30- o I i 1
i) 2,6.
2
4
2
0
0
0
1
c
'm
Requested Turnaround
'14 Days
f
0 0
7 Days--,•�J f/—/1/v-I��J
E .N
o
48 Hr
'Other _ASAP
m
L)
' Add. Cost Will Apply
8
8
0
0
0
0
0
0
0
0
a
a
0
0
p
0
12
Total E

PRELIMINARY
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM Page 44 of 45
Qui[O En t'9Y Qoke EmmM ArypjpcafLa6arrEory .i '-'--'-'-'- • •,• Adm Kcal tAbot -' usnOnl -----------------------------------------------------------
..Y _ ----'-'-'-'-'-'- •,"
! Nall Lad. rood" IPlxlrin} T441f ! +'I Ma1rIY C,.W uuw P8 T _
! Analyll dl Laboratory l+C i 9q _ — or r
iiSir H•c�n rar,y mil i ,1� 32_[ SC
Chain of Cu Lcu x x�w�o,I7141 N.C. r�oa* i - i OR IGIXLa,L to LAB, COPY to [:LIEN
Samp� Lob ITMI E7�S3u �. J� i
'- - - - - - - - - I .. J 9�i4iE �A04'
hf7f5
ProotctHamp! MIS wMallan WHIM Fwilu~
Cn *Iq Weker - V5T— DUKE TESTS
—.- -- I Coa+rTrm2lc�. ___.______. _.._____. ,.....-.___.-..-._____.._._,.,,-_.__._.________.._.______.
o Cart fyder Hhrdln, 5yrlfi'EEi
i
00WAII110 1,1I11: MSDII -.. I'mems: NGRdWTH AocollMl; ! —
i Filtration (0.45 umi {� Unlltfueed {� If —t
Project: Kae1" Im iss Th4s4r+alrwa Ioa Icb I
Ic5T G n?soa
PropramlEOuIS1tp4kCode; Sufi-Pro0ramffuk'.-a= '--'--------"- ConlolnarVallumu(ml-j 2f184 ZMo .500 Soo 25D �•
19dOon: Yirm"M Container Typa PFr PFT PF1 "PPE HOPE
Sample Qescflption or IQ
Mss-ID-1 1 35,60151351, -4�0.956685'
IIISVD-1Lj Toff bu mm al abno a rooailon
ilflWuffhetlF3x
-
.'11fIGLIISIN:d �*
:llnr{Illxh C.d ay
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Y
Q
}
}
04EaieNlf'r 18 twnpleh' Jeff apyroprtaM
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4
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❑
. 2
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m
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7-81_IOtllon
Irllur allan
GaOF
Time SI nawra
lily
x
1
�3rsli
18snf
1
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1
7
6
-- TOTAL 2 2�
lu _ Io �rl�
t7a49fTilYl6 AcI;.
Ud By�':; o ImR
mabwTh a Ae:68WTlme
6aicRlrn Sia"d My;
Gak0rlm{, -------- t"Bat-mtOpwwmy paplrTwna
ELEMENTS by aCp_M$ (T1RMI; 8b, As, Be, [:CLL. Cr, Ca, Cu. Rh, Ma, NI.130. Aq_LL.Tl_LL, %_LL
ELEMENTS by ICP;TRM�, AI, On. B. Ca, Fi, Lr, Mo. Mn, K. Nn,Sr, Zn, Taw Herds**s
113186*Ivrtd MWAn ; AJr r114516; ICP-p113TRM Weludiftu Ca, kilo, K. Nal- IM9,OI9_TRM
a 1 Z 1 a
0
key we&-W'd Tu lna loured
1.1
7
' 46 iir
`Olhx ASAP
' Add. Cnsl will Apply
0
0
D
4
I 4 I i9 I
1 To#al 14

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_•_ _ _ ......... C_ HAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
- -DUke
..........................
Energy DukaHnergyAnalyOcalLatHxatory
_•_._._._._._._._._._._._._._._._._._._._.�--•- I latwra UsaOn'_._._._.-._.-._._._.-._._._._.-._._._._._
t Analytical Laboratory st's daYGOLl2leaum„sTas31 i
1333%Hawn Ferry Rd
I f�, `t,� Matrix GW YYW
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Chain of Custody A HuW.MINM, WC. 2a079 i
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f 6ample LOp Iraq as.s2ss l
Faa• a SAFLA
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• d
SAMPLE
PROGRAM
_-_:r.-� ._._._............
V
USSlnliltratlonWater Evaluation
!WmWr PACE !
��`�
Gmand Wal«_x_ IJPOES_
oft"Walm
RCRA Waste
UST_
ardin, Synterra
C/LI Tam C
_.._.._.._.._.._..rtl._.._..................................................................
a 4
Operating AISl10 Process: NGROWIR Account:
FP,m,..l
pe #5611 `4
[ration (0.45 um)
Unfiltered
S000540 ITEST Activity 10: Facility ID:145
CM
—Pr aservallve
Ira
„_�-
Nona
�
IMOf
NNW
lS Task Code: Code;
Container Volume(mL)
40 ml
50o
250
250
1L
Station: Yanhall
ContalnerT a
Yp
glass
PET
glass
HOPE
HOPE
e
Sample Description or ID
Customer to Complete all appropriate
'
non -shaded areas.
g
@ rmi
iY t(o�1 V
1�1
..._.._.._.._.._.._...
GPS Location
Collection Information s=
e h
° 1
pl al
at
o m al
Date TimeMn;turo u ur
><
to �.
T >
?
H >
2
2
1
2
t
z
! +�% MSS-ID-1 35.605135-,-60.956655° y y 1 it o-• J, x
1 1
MSS-ID-11-
2' oN bottom at above location
' t�
t13 p
a,
x
1 1
2
1
2
By
By
3C/%.. lY
TOTAL
F
I I
0
4
2
4
2
tamme
m
42
'-30-0o j K K 1
Dateffime
VV
ev
m 3
n
Daternme
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DateMme
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m
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0
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PRELIMINARY
Page 45 of 45
Page 2_ of _: _
DISTRIBUTION
ORIGINAL to LAB, COPY to CLIENT
PACE TEST
Mared
3
N
0
0
12
0
0
0
0
Total 1161
Requested Turnaround
'14 Days
7 Days
' 48 Hr
'Other _ASAP
'Add. Cast Will Apply

04ARCADISDesignConsultancy
for naturat and
built asss ets
Arcadis G&M of North Carolina, Inc.
Wade 1
5420 Wade Park Boulevard
Suite 350
Raleigh
North Carolina 27607
Tel [phone]
Fax [phone]
www.arcadis.com