Allen CAP 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
Allen Steam Station
Gaston County, NC
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 Allen Steam Station (or Site) Retired Ash
Basin, Active Ash Basin, storage areas, structural fills, and the Retired Ash Basin Landfill. 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 Allen 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 Allen 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 standard. Currently, up to 82 clean water infiltration wells and up to 87 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 20 clean water
infiltration wells will be installed at select locations throughout the Site, along with up to 30
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
Allen Steam Station
June 22, 2020
Per the NCDEQ's suggestion, Duke Energy will set up a follow-up meeting within the next one
to weeks to address any questions or comments. If you have any immediate questions, please
contact Ms. Courtney Murphy at Courtney. Murphy(a)duke-energy.com.
Sincerely,
50+4 f�
CJ
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
Courtney Murphy, 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
Allen 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 Fleischn6 , 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
Acronymsand Abbreviations.........................................................................................................................................................
iv
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..............................................................................................................................4-1
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.................................................................................................4-2
4.1.4 Conveyance.............................................................................................................................................................4-3
4.1.5 Electrical....................................................................................................................................................................4-3
4.2 Pilot Test Implementation.........................................................................................................................................
4-4
4.2.1 Well Installation Activities...................................................................................................................................4-4
4.2.1.1 Saprolite and Transition Zone Vertical and Slanted Extraction Well Installation .............
4-4
4.2.1.2 Bedrock Zone Extraction Well Installation........................................................................................4-4
4.2.1.3 Clean Water Infiltration Well Installation............................................................................................4-5
4.2.1.4 Well Development.......................................................................................................................................4-6
4.2.1.5 Investigation -Derived Waste...................................................................................................................4-6
4.2.2 System Installation Activities............................................................................................................................4-6
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4.2.2.1 Conveyance...................................................................................................................................................4-6
4.2.2.2 Modular Systems.........................................................................................................................................4-7
4.2.2.3 Mechanical.....................................................................................................................................................4-7
4.2.2.4 Electrical..........................................................................................................................................................4-7
4.2.3 Pilot Test Monitoring Plan..................................................................................................................................4-7
4.2.3.1 Data Parameters..........................................................................................................................................4-8
4.2.3.2 Well Capacity by Corrective Action Well Performance Testing...............................................4-9
4.2.3.3 Area of Hydraulic Influence and Connectivity...............................................................................4-10
4.2.3.4 COI Concentration Trends....................................................................................................................4-11
4.2.4 Permit Requirements.........................................................................................................................................4-11
4.3 Pilot Test Implementation Schedule...................................................................................................................4-11
5 References.............................................................................................................................................................................. 5-1
6 Certification..............................................................................................................................................................................6-1
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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 Cleaalln Water Infiltration System Process Flow Diagram
4-4 Vertical Saprolite/Transition Zone Extraction Well Construction Details
4-5 Slanted Saprolite/Transition Zone Extraction Well Construction Details
4-6 Bedrock Extraction Well Construction Details
4-7 Vertical Clean Water Infiltration Well Construction Details
4-8 Slanted Clean Water Infiltration Well Construction Details
4-9 Monitoring Locations
APPENDICES
A Infiltration Water Analytical Results
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ACRONYMS AND ABBREVIATIONS
02L NCAC, Title 15A, Subchapter 02L, Groundwater Classification and Standards
AAB
Active Ash Basin
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, Inc. of the Carolinas
IDW
investigation -derived waste
IMAC
Interim Maximum Allowable Concentrations
LRB
Lined Retention Basin
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
RAB
Retired Ash Basin
Site
Allen Steam Station
SynTerra
SynTerra Corporation
TDS
total dissolved solid
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 Allen Steam Station (the Site) (SynTerra Corporation [SynTerra] 2019), located on the west bank
of the Catawba River (Lake Wylie) in Gaston 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 consists of
groundwater extraction wells combined with clean water infiltration wells and associated treatment.
The purpose of this Work Plan is to present 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 for the ash basins. The Geographic
Limitation, defined as a boundary 500 feet (ft) from the ash basin waste boundaries, 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-six groundwater extraction wells at 20 individual locations along the ash basin dam and to
the north and northeast of the ash basins and coal piles;
Four groundwater extraction wells at three individual locations along the southeastern bank area
for hydraulic testing during the pilot test and extraction during subsequent implementation phase;
and
• Twenty clean water infiltration wells at 15 individual locations to the north of the ash basins and
coal piles.
Groundwater will be extracted, treated, and conveyed to a permitted outfall. Infiltration water will be
supplied from a fire water force main line, which pulls from the Catawba River. Infiltration water will be
pumped into clean water infiltration wells in and around the COI -affected groundwater 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, Inc. of the Carolinas
[HDR] 2015 and 2016), and with the CAP Update (SynTerra 2019). These CAP documents addressed
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 (02L).
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 Active Ash
Basin (AAB), the Retired Ash Basin (RAB), and the coal piles (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 Limitations for the ash basins, 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
ash basins and coal piles 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 as an unconfined, interconnected groundwater system characteristic
of the Piedmont Physiographic Province. The LeGrand Slope Aquifer System model applies to
the Site (LeGrand 1988, 1989; Daniel and Dahlen 2002) (Figure 2-1), 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 basins, and
geochemical mobility. Boron was the only COI retained due to association with the ash basins, while COI
associated with the coal pile area include cobalt, iron, manganese, strontium, sulfate, and total dissolved
solids (TDS) (SynTerra 2019). These seven COI exhibit mean concentrations greater than the applicable
standard (BTVs, 02L standards, or IMACs) and have concentrated migration patterns downgradient of
the ash basins at or beyond the Geographic Limitation (SynTerra 2019). Constituent concentrations in
COI -affected groundwater associated with the ash basins and coal pile area 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 basins or coal piles have been
identified.
• The ash basins and coal pile area do not increase risks to ecological receptors.
• Groundwater from the ash basins and coal pile area has not and does not flow toward any water
supply wells.
• The hydrogeologic setting of the Site ash basins and coal pile area limits COI transport.
• The physical setting and hydraulic processes control the COI flow pattern within the ash basins,
underlying groundwater system, and downgradient areas.
• Horizontal distribution of COI in groundwater proximate to the ash basins and coal pile area is
limited to the north and east.
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• Geochemical processes stabilize and limit certain constituent migration along the flow path.
The COI in groundwater are contained within Duke Energy's property.
• 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.
• The aquatic systems of the Catawba River 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 basins and adjacent source areas.
2.2 Corrective Action Plan
The CAP Update was prepared using available site data through October 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 process.
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 excavation of the RAB, AAB, storage areas, structural fills, and the
landfill on top of the RAB;
• 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 targeted
clean water infiltration and treatment 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
design is to address migration of COI -affected groundwater at or beyond the Geographic Limitation. The
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CAP Update fate and transport modeling predicts that the clean water infiltration wells will help to address
potential COI in the vadose zone. The full-scale groundwater extraction and clean water infiltration
corrective action planned for implementation is shown on Figure 2-2. Currently, 87 extraction wells and
82 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 10 years of operation (SynTerra 2019). To achieve these results, model -predicted
groundwater extraction rates are 970 gallons per minute (gpm) (1.40 million gallons per day [MGD]) and
model -predicted infiltration rates are 380 gpm (0.55 MGD) (SynTerra 2019). 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 the Catawba River. 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 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 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. These 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.
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
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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.
These 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 30 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). 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
on Table 4-2. Most target intervals are within the saprolite and transition zone hydrostratigraphic units.
The extraction wells are designed to include screen intervals that target and extend within the deeper
saprolite and transition zone to induce vertical hydraulic gradients for COI -affected groundwater mass
removal. Bedrock extraction wells to be installed are located along the northern portion of the Main Coal
Pile that are part of the pilot test system and along the southeastern bank, east of the AAB for hydraulic
testing. The vertical clean water infiltration wells have longer screen intervals that target the approximate
full saturated thickness of both the saprolite and transition zones. Due to the added length of well screen,
the slanted clean water infiltration wells are designed as two wells targeting the saprolite and transition
zones separately.
4.1.1 Clean Water Infiltration Source
Clean infiltration water will be obtained for the pilot test from a fire water force main line located adjacent
to the proposed clean water infiltration wells SIW-5/6 (Figure 4-1). Clean water infiltration well water will
be conveyed to a modular treatment system prior to infiltration and pre-treated (filtration, ultraviolet
treatment) to reduce the potential for well fouling. Analytical data for a representative sample of infiltration
water is summarized in Appendix A. An underground injection control (UIC) permit application for the
clean water was submitted to the NCDEQ on June 19, 2020 and must be approved prior to initiating clean
water infiltration activities.
4.1.2 Extracted Water Disposition
The extracted groundwater will be transferred from the pilot test area to the onsite coal yard sump for
transfer to the Lined Retention Basin (LRB) (Figure 4-1). The LRB discharges to permitted National
Pollutant Discharge Elimination System (NPDES) Outfall 006.
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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), 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 to10 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, 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 draw extracted groundwater from
the equalization tank and discharge to the LRB (Figure 4-2). If concentrations of the extracted
groundwater indicate that there is a potential for excursion from NPDES permit limitations not otherwise
treated with existing infrastructure, pre-treatment may be implemented on all or parts of the groundwater
extraction prior to discharge into the LRB.
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 obtained from the existing fire water force main line and will be
processed through the pre-treatment system prior to storage in an equalization tank (infiltration tank,
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PILOT TEST WORK PLAN
near the MIC). Infiltration water will be treated with a combination of filtration and ultraviolet treatment
(Figure 4-3). Prior to use, the infiltration water will meet 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 the 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 the infiltration pressure at each
clean water infiltration well location. Model -predicted infiltration rates for the full-scale system are
380 gpm (0.55 MGD) and 93 gpm (0.13 MGD) for the pilot test system. Infiltration rates at each well are
expected to vary but are anticipated to be approximately 4.6 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 start-up 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 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 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. Three MEC systems and three equalization tanks are
proposed for the pilot test (Figure 4-1). The water will be conveyed to the LRB from the MEC (Figure 4-2).
Infiltration water will be transferred from the infiltration treatment system to the MIC through a 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.
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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 and Transition Zone Vertical and Slanted Extraction Well Installation
Vertical and slanted extraction 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. Vertical
well boreholes will be straight and plumb and drilled in such a manner to not induce or transfer potentially
affected media into the hole. Slanted well boreholes will be drilled with the drilling rig mast and drill string
positioned at least at a 45-degree angle from the vertical position. Upon reaching the targeted hydrologic
zone, the extraction wells 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 ft in length, with a bottom cap to serve as a
sump. Vertical and slanted extraction well diagrams are included as Figures 4-4 and 4-5, respectively.
Stainless -steel casing centralizers or guides will be installed on wells greater than 50 ft in total depth to
maintain separation between the well casing and borehole to allow for the passage of filter pack 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. The remaining annular
space above the filter pack sand 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/II neat cement
grout to the ground surface. During system installation, the wells will be connected and equipped with a
flush -mount traffic -rated vault. Wells installed for hydraulic testing only will have temporary aboveground
outer well steel casing installed with lockable lids. Well vaults will be installed during the subsequent
phase of implementation.
4.2.1.2 Bedrock Zone Extraction Well Installation
Bedrock extraction wells 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 1/11 neat cement that will be allowed to cure for at
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PILOT TEST WORK PLAN
least 24 hours. After curing, drilling will resume inside the outer casing via air rotary and a 9 7/8-inch
borehole and will be advanced to the target depth. Bedrock boreholes will be advanced at least 15 ft
deeper than the conductor casing. The bedrock extraction well construction details are included on
Figure 4-6.
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 bedrock extraction wells that
require screens 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. 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 filter pack sand
to a minimum of 2 ft above. The remaining annular space above the filter pack sand 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/II neat cement grout to the ground surface.
During system installation, the wells will be connected and equipped with a flush -mount traffic -rated vault.
Wells installed for hydraulic testing only 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
Vertical and slanted 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. Vertical 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. Slanted well boreholes will be drilled with the drilling
rig mast and drill string positioned at least at a 45-degree angle from the vertical position. Vertical and
slanted clean water infiltration well construction diagrams are included as Figures 4-7 and 4-8,
respectively.
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 vertical clean water infiltration well is approximately 25 ft. The screen length for slanted clean water
infiltration wells installed in the saprolite zone is expected to be 60 ft, and the screen length for slanted
wells installed in the transition zone is expected to be 30 ft. 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 3 ft in length, with a bottom cap to serve as a sump.
For clean water infiltration 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 pack sand, secondary sand pack seal, and tremie pipe for grout. The annular space
around the well screen will be backfilled with an appropriate filter pack sand to a minimum of 2 ft above
the top of the well screen. A secondary sand pack will be placed in the annular space above the main
sand filter pack. The secondary sand pack will consist of approximately 2 ft of very fine sand overlain by
2 ft of fine sand. The remaining space above the sand pack will be filled with Portland Type 1/II neat
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cement grout to the ground surface. During system installation, the wells will be connected and equipped
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 onsite 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 containerized investigation -derived waste will
be disposed of at an approved off -site facility after waste characterization is completed.
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 treatment 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, located at the eastern MEC, will include secondary containment due to its location
near the Catawba River/Lake Wylie.
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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
As discussed above, the submersible pumps installed within the 26 active (connected to the MEC)
extraction wells will be controlled by an upper and lower level switch or float installed within each well.
When the water level within the well is above the upper level switch/float the pump will turn on and
continue to pump until the water level reaches the lower level switch/float, at which point the pump will
shut off and allow the water level within the well to recover.
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 (two for the extraction system, and one for the clean
water infiltration system).
The pilot test design includes three MEC triplex pump skids, one MIC duplex pump skid, and one clean
water infiltration system duplex pump skid. Each skid will be controlled by the water level in the respective
equalization tanks.
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 (Catawba
River/Lake Wylie) to provide a comprehensive data set. These 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 one-to-3 months during the duration of the pilot test. Field parameters will be measured during
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groundwater sampling, and groundwater samples will be analyzed for COI concentrations (including
boron, cobalt, iron, manganese, strontium, sulfate, and TDS). 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 4-9. 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 are 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.
Water Levels
Water levels 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 along the
Catawba River/Lake Wylie (WL-1, 2, and 3) 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 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 measurements including temperature, pH, specific conductance, oxidation-reduction
potential, turbidity, and dissolved oxygen may also be recorded continuously from select monitoring wells.
These data may be collected from monitoring wells in areas of clean water infiltration, COI -affected
groundwater areas, low pH area, and near the Catawba River/Lake Wylie and/or ash basins. These data
will provide additional evidence of hydraulic influence and connection based on changing groundwater
conditions compared to baseline conditions. These data may be collected by data -logging multi -
parameter sondes that include a pressure transducer.
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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 will be collected from groundwater monitoring wells and
surface water (Catawba River/Lake Wylie) 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.
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 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.
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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 4-9)
include measurements of water level, water quality parameters, stable isotopes, and major ions as
detailed above. These 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:
• South of Switch Yard and North Along Plant Allen Road;
• Western Extraction System (West of Main Coal Pile);
• North of Main Coal Pile;
• Eastern Extraction System (Area of Live Coal Pile on the West Bank of the Catawba River); and
• Background.
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 bank of the Catawba
River/Lake Wylie will include 48- to 72-hour constant -rate extraction tests (Figure 4-9). 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 and surface water influence and to 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.
The three areas where extraction wells will be installed and used in conjunction with data collection at
existing monitoring wells for hydraulic testing (Figure 4-9) are:
• North Bank Area — One constant rate extraction test at EX-36 with water level and geochemical
characterization data response (e.g., changes in pH, dissolved oxygen, conductivity) monitored at
AB-9S and AB-9D.
• Mid -Point Bank Area — One constant rate extraction test at EX-42 with water level and
geochemical characterization data response monitored at AB-26S, AB-26D, GWA-3S, GWA-3D,
GWA-3BRA, and GWA-3BRL.
South Bank Area (within former stream channel) — Two separate constant rate extraction tests at
EX-55 and EX-67 with water level and geochemical characterization data response monitored at
AB-22S, AB-22D, AB-22BRL, AB-22BR, AB-10S, AB-10D, AB-10BR, and AB-10BRL.
Water generated as part of the hydraulic testing activities will be containerized in frac tanks located in the
vicinity of the wells. Periodically, water will be transferred from these tanks to the extracted water
equalization tank for ultimate disposal at the LRB.
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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
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 infiltration and extraction system. The COI
concentration data will also be collected at sidegradient and downgradient locations to verify that
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. Well
construction information 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 (NC0004979) — A permit modification is required to discharge extracted
treated groundwater through Outfall 006. A modification request is currently in progress with
anticipated submittal to the NCDEQ in Mid -July 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
corrective action plan construction activities is greater than one acre.
• Gaston County Well Permit — To install and operate any well or well system associated with the
Site.
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)
— Gaston County Well Permit (July 2020)
— NPDES Permit Modification (anticipated January 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)
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• 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
AMEC. 2015. Natural Resources Technical Report — Allen Steam Station, Gaston County, North Carolina.
May 29.
Daniel, C. C., & Dahlen, P. R. 2002. Preliminary hydrogeologic assessment and study plan for a regional
ground -water resource investigation of the Blue Ridge and Piedmont provinces of North Carolina.
Raleigh, North Carolina: U.S. Geological Survey Water -Resources Investigations Report 02-4105.
HDR. 2015. Corrective Action Plan Part 1. Allen Steam Station Ash Basins.
HDR. 2016. Corrective Action Plan Part 2 (included Comprehensive Site Assessment Supplement 1 as
Appendix A) — Allen Steam Station Ash Basins.
LeGrand, H. 1988. Region 21, Piedomnt 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
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 — Allen 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

AARCADIS bunt n& Consultancy
fornaturaland
bu ilt assets
Table 3-1
Data Collection Objectives
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
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:
• North Area: Main Coal Pile, South of Switch Yard, Live Coal Pile, and bank of the
Catawba River.
• Southeast Area: East of Retired Ash Basin, Retired Ash Landfill, and Active Ash Basin
along the bank of the Catawba River (within and outside former tributary stream
Study Area Boundaries
channels)
Interconnected Groundwater Zones:
• Saprolite Zone
• Transition (Deep) Zone
• Bedrock Zone
Inputs to the Decision
Decision Rules*
Well Capacity: 0Compare 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.
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AARCADIS bunt n& Consultancy
fornaturaland
bu ilt assets
Table 3-1
Data Collection Objectives
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
Area of Hydraulic Influence and Connectivity:
• Collect operational data from extraction,
0 Verify hydraulic parameters for the groundwater zone(s).
clean water infiltration, and monitoring wells
0 Evaluate the hydraulic influence and connection of respective locations and nearby
including measurements of water levels and
surface water bodies.
water quality (depending on the location that
Evaluate the hydraulic influence/connection with multiple lines of evidence
may include pH, specific conductivity, stable
(e.g., geochemical tracers) to include responses to clean water infiltration (pore
isotopes, and major ions). These data will
volume exchange).
also be collected from surface water within
Adjust the overall spatial configuration or flow rate based on the hydraulic
proximity of pilot test well influence.
influence/connectivity understanding to propose alternative design criteria (increased
• Perform targeted extraction hydraulic tests in
or reduced well network, spacing, or flow rate adjustments).
areas of non -operation (note: response may
be limited based on short-term testing).
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 • Adjust extraction and/or clean water infiltration well locations based on utility location
(lithologic depths and thicknesses) to verify results.
subsurface conditions. 0 If groundwater zone thickness differs from expected, vary design of the extraction and/or
• Identify and compile extent of utilities and clean water infiltration wells to match observed conditions.
areas of inaccessibility.
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.

Table 4-1
Pilot Test Basis of Design Summary
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, 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 boron, cobalt, iron, manganese, strontium, sulfate, and total dissolved solids.
Groundwater Draw -Down
To -be -determined during pilot testing.
Groundwater Zone of Capture
To -be -determined during pilot testing.
Discharge Location
Discharge to coal yard sump, to lined retention basin, and finally NPDES Outfall 006.
Well water pumps within extraction well network dewater wells to targeted depth, inducing groundwater capture zone. The
extracted water is conveyed to a coal yard sump, which conveys the extracted groundwater to the lined retention basin before
Generalized Process Description
ultimate discharge to NPDES Outfall 006. Infiltration water is provided from the onsite fire water force main line to an equalization
tank and then processed through a treatment system. After treatment, the water will be conveyed to the modular infiltration
control system for distribution to the clean water infiltration well network.
Collection Points / Modular Buildings
Three modular control buildings: extraction (1), clean water infiltration (1), clean water infiltration treatment (1).
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 valves.
Clean Water Infiltration Control
Automated pressure control at the clean water infiltration control systems, manifold and wellheads include pressure
transmitters/transducers that turn on/off flow based upon pressure conditions.
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" . Use existing aboveground pipe racks in areas of subsurface utilities.
Existing Utilities/Infrastructure
Design to integrate into existing coal yard sump.
Not required for the majority of the conveyance pipe, only one section of subsurface piping is proposed to have secondary
Secondary Containment
containment (adjacent to Catawba River/Lake Wylie). 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 expansion.
Flexibility 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
Integration with Facility Operations
Modular Building Communications
Each system includes remote monitoring capabilities for Duke Energy and operational personnel.
Interlock with coal yard sump (extraction).
Each modular system to contain dedicated/independent control with inter -system communication for interlock controls.
Number of Wells
30 pilot test wells, including 26 active wells and 4 hydraulic testing only wells (87 full-scale).
Flow Rate
Total Design Flow Rate: 970 gpm (full-scale).
Diameter
6-inch diameter or 10-inch open borehole.
Material of Construction
Well Pumps
Stainless -steel wire wrapped screen connected to schedule 80 PVC riser.
0.5 to 1.5 HP electric submersible pump.
Well Vaults
Precast square concrete vault box with lids, highway rated; float switch and manual shut-off valve at wellhead.
Instrumentation
System controlled by a PLC with HMI.
Number of Wells
20 active pilot test wells (82 full-scale).
Flow Rate
Total Design Flow Rate: 380 gpm (full-scale).
Diameter
6-inch.
Material of Construction
Stainless -steel wire wrapped screen connected to schedule 80 PVC riser.
Well Vaults
Precast square concrete vault box with lids, highway rated; float switch and manual shut-off valve at wellhead.
Riser Pipe
Schedule 80 PVC.
Instrumentation
System controlled by a PLC with HMI.
Construction
Modified container (CONEX) installed on pad/foundation with appropriately -sized containment curb, if required.
Collection Tank
Insulated poly ethylene tank (clean water infiltration & extraction); sized for future expansion or confirmation of flow rates.
Sewer
Not required.
Security
All systems Drotected by keved locks and passwords: no fencina reauired.
Acronyms and Abbreviations:
COI = constituent of concern
gpm = gallon per minute
HMI = human machine interface
HP = horsepower
MEC = modular extraction control
MIC = modular infiltration control
NCAC = North Carolina Administrative Code
Page 1 of 1

Table 4-2
Proposed Pilot Well Construction Details
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
fvnaluraLand AARCADIS bud iss"S: .
System Well ID
Extraction Well
Figure Dimension
Location Description Target
Total Well Dep Casing Diameter Screen Diameter
..
Screen Length Bottom of Sump
EX-1
East of Live Coal Pile - West Bank of CR
STZ
118
--
--
6
6
10
119
EX-2
East of Live Coal Pile - West Bank of CR
STZ
118
--
--
6
6
10
119
EX-3
East of Live Coal Pile - West Bank of CR
STZ
118
--
--
6
6
10
119
EX-4
East of Live Coal Pile - West Bank of CR
STZ
107
--
--
6
6
10
108
EX-5
East of Live Coal Pile - West Bank of CR
STZ
77
--
--
6
6
10
78
EX-9
North of Main Coal Pile
STZ
83
--
--
6
6
10
84
EX-10
North of Main Coal Pile
STZ
83
--
--
6
6
10
84
EX-11
North of Main Coal Pile
STZ
87
--
--
6
6
10
88
EX-12
North of Main Coal Pile
STZ
88
--
--
6
6
10
89
EX-13
North of Main Coal Pile
STZ
93
--
--
6
6
10
94
EX-14
North of Main Coal Pile
STZ
100
--
--
6
6
10
101
EX-15
Northwest of Main Coal Pile
STZ
125
--
--
6
6
10
126
EX-36*
Northeast of Primary Pond 3 - West Bank of CR
STZ
117
--
--
6
6
10
118
EX-42*
East of Primary Pond 3 - West Bank of CR
STZ
139
--
--
6
6
10
140
EX-55*
Southeast Active Ash Basin - West Bank of CR
STZ
104
--
--
6
6
10
105
EX-67*
Southeast Active Ash Basin - West Bank of CR
B
365
10
85
6
6
10
368
EX-70
Southwest of Switchyard
STZ
115
--
--
6
6
10
116
EX-75
North of Main Coal Pile
STZ
97
--
--
6
6
10
98
EX-76
East of Coal Pile - West Bank of CR
STZ
127
--
--
6
6
10
128
EX-82
North of Main Coal Pile
B
224
10
110
6
6
10
225
EX-83
North of Main Coal Pile
B
115
10
105
6
6
10
116
EX-84
North of Main Coal Pile
B
215
10
105
6
6
10
216
EX-85
North of Main Coal Pile
B
208
10
100
6
6
10
209
EX-86
North of Main Coal Pile
B
205
10
95
6
6
10
206
EX-87
North of Main Coal Pile
B
202
10
90
6
6
10
203
SLEX-16
Northwest of Main Coal Pile
STZ
168
--
--
6
6
10
169
SLEX-18
West of Main Coal Pile
STZ
147
--
--
6
6
10
148
SLEX-19 West of Main Coal Pile
SLEX-20 West of Main Coal Pile
SLEX-21 West of Main Coal Pile
STZ
157
163
173
--
--
6
6
10
158
STZ
--
--
6
6
10
164
STZ
--
--
6
6
10
174
Total Extraction Wells
30
Page 1 of 2

Table 4-2
Proposed Pilot Well Construction Details
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
fvnaluraLand AARCADIS bud iss"S: .
Figure Dimension
System Well ID Location Description Target
. ..Depth
Unit
Clean Water Infiltration Well
Total Well Depth Surface Casing Depth of Casing Diameter Screen Diameter
(inches) (ft..
Screen Length Bottom of Sump
..
129 -- -- 6 6
25 130
IW-24
Southwest of Switchyard
STZ
IW-25
Southwest of Switchyard
STZ
129
--
--
6
6
25
130
IW-36
Northwest of Main Coal Pile
STZ
96
--
--
6
6
25
97
IW-42
Northeast of Coal Pile
STZ
77
--
--
6
6
25
78
IW-43
Northeast of Coal Pile
STZ
86
--
--
6
6
25
87
IW-45
Northeast of Coal Pile
STZ
94
--
--
6
6
25
95
IW-47
Northeast of Coal Pile
STZ
79
--
--
6
6
25
80
IW-73
Northeast of Coal Pile
STZ
83
--
--
6
6
25
84
SIW-1
North of Main Coal Pile
S
92
--
--
6
6
60
93
SIW-2
North of Main Coal Pile
TZ
106
--
--
6
6
30
107
SIW-3
North of Main Coal Pile
S
92
--
--
6
6
60
93
SIW-4
North of Main Coal Pile
TZ
106
--
--
6
6
30
107
SIW-5
North of Main Coal Pile
S
92
--
--
6
6
60
93
SIW-6
North of Main Coal Pile
TZ
106
--
--
6
6
30
107
SIW-7
North of Main Coal Pile
S
99
--
--
6
6
60
100
SIW-8
North of Main Coal Pile
TZ
127
--
--
6
6
30
128
SIW-9
North of Main Coal Pile
S
99
--
--
6
6
60
100
SIW-10
North of Main Coal Pile
TZ
127
--
--
6
6
30
128
SIW-11 East of Main Coal Pile
SIW-12 East of Main Coal Pile
TZ
141
--
--
6
6
30
142
S
113
--
--
6
6
60
114
Total Clean Water Infiltration Wells
20
Notes:
a. Well locations are based on preliminary site information. Locations are subject to change for constructability.
b. Final well depths, screen lengths, and casing lengths will be based on the geology encountered and not the preliminary depth proposed.
c. 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
bgs = below ground surface
CR - Catawba River
ft = feet
S = Saprolite
STZ = Saprolite and Transition Zone
TZ = Transition Zone
Page 2 of 2

Table 4-3
Monitoring Plan Summary
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County North Carolina
GWA-27S
GWA-27D
GWA-6BRA
GWA-6S
GWA-6DA
CP-1 S
CP-1 D
CCR-4SA
CCR-4DA
GWA-7D
GWA-7S
West of Main Coal Pile
GWA-30D
GWA-30S
CCR-5S
CCR-5D
CCR-6S
CCR-6D
AB-40SS
AB-40D
Northeast of Main Coal Pile
CP-2S
CP-2D
GWA-28S
GWA-28D
GWA-28BR
North of Live Coal Pile
CP-3S
C P-3 D
W L-1
GWA-29S
GWA-29D
South of Live Coal Pile
CP-5S
CP-5D
W L-2
Saprolite
Transition Zone
Bedrock
Saprolite
Transition Zone
Saprolite
Transition Zone
Saprolite
Transition Zone
Transition Zone
Saprolite
Transition Zone
Saprolite
Saprolite
Transition Zone
Saprolite
Transition Zone
Saprolite
Transition Zone
Saprolite
Transition Zone
Saprolite
Transition Zone
Bedrock
Saprolite
Transition Zone/Bedrock
Catawba River
Saprolite
Transition Zone
Saprolite
Transition Zone
Catawba River/Lake Wylie
529,133.98
1,398,998.22
529,127.01
1,399,002.26
529, 045.24
1,399,106.63
529, 041.79
1,399,102.80
529,014.07
1,399,138.73
529,357.38
1,399,360.35
529,352.03
1,399,354.91
528,948.58
1,399,083.78
528,930.92
1,399,099.98
529,487.89
1,399,021.00
529,478.47
1,399,022.18
529,008.49 1,399,540.14
529,001.69 1,399,546.63
528,764.27 1,399,287.72
528,764.27 1,399,287.72
528,560.07 1,399,596.85
528,559.92 1,399,604.35
No data
528,557.88 1,399,268.70
529,496.13
1,400,023.71
529,496.13
1,400,017.48
529,710.07
1,399,867.33
529,716.56
1,399,865.33
529,724.14
1,399,863.12
529,842.69
1,400,433.63
529,835.30
1,400,439.30
529,881.48
1,400,476.98
530,052.25
1,400,259.12
530,052.25
1,400,259.12
528,764.27
1,399,287.72
528,764.27
1,399,287.72
529,123.39
1,400,808.57
sonde
x
x
---
--- x
sonde
x
x
---
--- x
PT
x
---
---
--- x
PT
x
---
---
--- x
PT
x
---
---
--- x
sonde
x
x
x
x x
sonde
x
x
x
x x
PT
x
---
---
--- x
PT
x
---
---
--- x
---
---
---
---
---
---
---
---
--- x
sonde
x
x
x
x x
sonde
x
x
x
x x
PT
x
---
---
--- x
PT
x
---
---
--- x
PT
x
---
---
--- x
PT
x
---
---
--- ---
PT
x
---
---
--- ---
PT
x
---
---
--- ---
sonde
x
x
x
x x
sonde
x
x
x
x x
PT
x
---
---
--- x
PT
x
---
---
--- x
PT
x
---
---
--- ---
sonde
x
x
x
x x
sonde
x
x
x
x x
sonde
x
x
x
x ---
---
---
---
---
---
---
---
---
--- x
sonde x x x x --
sonde x x x x x
sonde x x x x ---
00 A R CA I S . x " V W 0
Page 1 of 2

Table 4-3
Monitoring Plan Summary
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County North Carolina
EX-36 (test well)
Saprolite/Transition Zone
AB-9S
Saprolite
AB-9D
Transition Zone
Mid -Point Bank Area - Hydraulic Testing
EX-42 (test well)
Saprolite/Transition Zone
GWA-3BRL
Bedrock
GWA-3S
Saprolite
GWA-3D
Transition Zone
AB-26S
Saprolite
AB-26D
Transition Zone
South Bank Area - Hydraulic Testing
EX-55 (test well)
Saprolite/Transition Zone
EX-67 (test well)
Bedrock
AB-10BR
Bedrock
AB-10BRL
Bedrock
AB-10S
Saprolite
AB-10D
Saprolite/Transition Zone
AB-22BR
Bedrock
AB-22S
Saprolite
AB-22D
Transition Zone
AB-22BRL
Bedrock
CCR-17S
Saprolite
CCR-17D
Bedrock
WL-3
Catawba River/Lake Wylie
Upgradient
AB-38S
Shallow
AB-38D
Deep
AB-38BR
Bedrock
527,193.47
1,400,630.54
sonde
x
x
x
x ---
527,138.00
1,400,631.00
sonde
x
x
x
x ---
527,134.60
1,400,632.00
sonde
x
x
x
x ---
526,102.66
1,400,490.75
sonde
x
x
x
x ---
526,141.20
1,400,497.52
sonde
x
x
x
x ---
526,128.48
1,400,484.32
sonde
x
x
x
x ---
526,121.37
1,400,483.88
sonde
x
x
x
x ---
526,162.31
1,400,297.16
sonde
x
x
x
x ---
526,169.32
1,400,299.86
sonde
x
x
x
x ---
524,947.00
1,400,548.80
sonde
x
x
x
x ---
524,947.00
1,400,548.80
sonde
x
x
x
x ---
524,955.97
1,400,594.08
sonde
x
x
x
x ---
524,949.82
1,400,593.16
sonde
x
x
x
x ---
524,935.40
1,400,636.00
sonde
x
x
x
x ---
524,935.10
1,400,640.00
sonde
x
x
x
x ---
524,944.95
1,400,274.11
sonde
x
x
x
x ---
524,921.09
1,400,273.79
sonde
x
x
x
x ---
524,916.43
1,400,273.56
sonde
x
x
x
x ---
524,910.00
1,400,274.00
sonde
x
x
x
x ---
525,210.20
1,400,443.25
PT
x
---
---
--- ---
525,215.37
1,400,443.27
PT
x
---
---
--- ---
525,110.38
1,400,714.80
sonde
x
x
x
x ---
528,659.26 1,397,557.91 PT x --- --- --- ---
528,656.29 1,397,550.45 PT x --- --- --- ---
528,666.00 1,397,551.00 PT x --- --- --- ---
General Notes:
a. All elevations based upon NAVD 88.
b. Pressure transducers are included in sondes.
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 COI - constituent of interest
amsl = above mean sea level DO = dissolved oxygen
bgs = below ground surface ft = feet
ORP = oxidation-reduction potential
PT = pressure transducer
SpC = specific conductivity
00 A R CA I S . x " V W 0
Page 2 of 2

FIGURES

CITY:(KNOXVILLE) DIV/GROUP:(ENV/GIS) LD: A. CARLONE PIC: PM: TM: BY: ACARLONE
-Nuitu I: YAlrl: M tNvkUuKttN
JAvtu: 0/4/LULU
r
}
j
i
-^ NPDES OUT 007
r�r�rJ
♦, NPDES OUTFACE 006
I �
DISCHARGE CANAL
� r � r' r NPDES O:UTFALL t • I ' NPDES OUTFACE 002B
11 STEAM STATION
` ♦1 `� ` HISTORICAL AND CURRENT
' `, ♦ `` , ` COAL MANAGEMENT AREA
NPDES OUTFA
DUKE ENERGY CAROLINAS
ALLEN STEAM
STATION BOUNDARY
0
�1
rI
l
PLA�I�A.tt N PD
i _
100
RETIRED ASH BASIN
`'
FF
I
f•'r';/�A
1
RETIRED ASH BASIN
ASH LANDFILL
RETIRED ASH BASIN
WASTE BOUNDARY
T_
is dVO (PERMIT#3612-INDUS)
7�an -
NPDES OUTFALL 004
1 1
NPDES OUTFALL 002A
I
RETIRED ASH BASIN
■ ASH LANDFILL BOUNDARY
RETIRED ASH BASIN
ASH LANDFILL
COMPLIANCE BOUNDARY
nr�L �_ T �� ��`` ♦ — — i — — NPDES OUTFALL 008
�1 r , NPDES OUTFALL 108
NPDES OUTFALL 108B
f CATAWBA RIVER
�~ (LAKE WYLIE)
ACTIVE ASH BASIN
�; � ' NPDES OUTFACE 104
NPDES OUTFALL 103
NPDES OUTFACE 002
ACTIVE ASH BASIN
WASTE BOUNDARY —
r i
GEOGRASIN
APHIC n
Q O. J RO
�\ LIMITATION
Lake
�-7
0 600 1,200 2,400 f'
.t� Service Layer Credits: NCDOT GIS Unit • - _
USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information
`✓J System; National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National
Distance in Feet Transportation Dataset; USGS Global Ecosystems; U.S: Census Bureau TIGER/Linedata; 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 refreshec,F rb uary!2020]n"I
LEGEND
® NPDES OUTFALL
i ALLEN STEAM STATION BUILDING
IWoII:7A.7_[09:1:%F910RUT M-1 111r:8 101112L7_1:rA
ACTIVE ASH BASIN WASTE BOUNDARY
RETIRED ASH BASIN ASH LANDFILL
— — — RETIRED ASH BASIN ASH LANDFILL
L — — I COMPLIANCE BOUNDARY
L — — 1 ASH BASIN GEOGRAPHIC LIMITATION
L- � I ALLEN STEAM STATION PARCEL
. J BOUNDARY
NOTES:
1. BASEMAP IMAGERY SOURCE: UNITED STATES GEOLOGICAL SURVEY
7.5-MINUTE SERIES (TOPOGRAPHIC), BELMONT QUADRANGLE, 2019;
CHARLOTTE WEST QUADRANGLE, 2019.
2. WATER FEATURES DEPICTED WITHIN WASTE BOUNDARIES OF THE
ASH BASINS ON THE 2016 USGS TOPOGRAPHIC MAP DO NOT
REPRESENT CURRENT CONDITIONS. THE CONDITIONS DEPICTED
ARE SIMILAR TO THOSE SHOWN ON THE 1968 AND 1973 USGS
TOPOGRAPHIC MAPS OF THE AREA [(1968 WEST CHARLOTTE
(1:24000) AND 1973 BELMONT (1:24000)].
3. SOLID WASTE PERMIT NUMBER IS INCLUDED IN PARENTHESIS
FOR PERMITTED FACILITY.
4. ALL BOUNDARIES ARE APPROXIMATE.
5. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS.
DUKE ENERGY
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
SITE LOCATION
FIGURE
ARCAD Design & Consultancy
IS � for s 1 -1
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ASH
STORAGE
STRUCTURAL STRUCTURAL
FILL FILL
I
1
1
I
NOTES:
1. THE WATERS OF THE US DELINEATION HAS NOT BEEN APPROVED BY
THE US ARMY CORPS OF ENGINEERS AT THE TIME OF THE MAP
CREATION. THIS MAP IS NOT TO BE USED FOR JURISDICTIONAL
DETERMINATION PURPOSES. THE WETLANDS AND STREAMS
BOUNDARIES WERE OBTAINED FROM STREAM AND WETLAND
DELINEATION CONDUCTED BY AMEC FOSTER WHEELER
ENVIRONMENTAL & INFRASTRUCTURE, INC. NATURAL RESOURCE
LEGEND
TECHNICAL REPORT (NRTR) FOR ALLEN STEAM STATION DATED MAY
29, 2015.
ACTIVE ASH BASIN WASTE BOUNDARY
2. ALL BOUNDARIES ARE APPROXIMATE.
3. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS.
_ — — _ RETIRED ASH BASIN WASTE BOUNDARY
4. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA
STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011).
_ — — _ ASH BASIN GEOGRAPHIC LIMITATION
5. SOLID WASTE PERMIT NUMBER IS INCLUDED IN PARENTHESIS FOR
PERMITTED FACILITY.
RETIRED ASH BASIN ASH LANDFILL WASTE
0 600' 1,2001
BOUNDARY
— — — — RETIRED ASH BASIN ASH LANDFILL
COMPLIANCE BOUNDARY
GRAPHIC SCALE
ASH STORAGE AREAS AND STRUCTURAL
FILLS
HISTORICAL AND CURRENT COAL PILE
Digital Orthographic
BASE MAP SOURCE: USGS Di 9
MANAGEMENTAREA
Quarter Quadrangle (DOQQ), 2019.
SWITCH \
YARD
� 1
I
I
I
I
I
II
I
II
l
I
ASIN
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a
a
---- DUKE ENERGY CAROLINAS PROPERTY
LINE
STREAM (AMEC NRTR 2015)
® WETLAND (AMEC NRTR 2015)
DUKE ENERGY
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
ORRECTIIVE ACTION GROUNDWATER
AREA PROPOSED FOR CORRECTIVE ACTION
FLOW DIRECTION
4' DUKE
for natural and
04ARCAD I S n&Consultancy
FIGURE
ENERGY
huiltassets
1 _2
CAROLINAS

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T
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*r ,
METERS
'L Water Level
1
Equipotential Line
Groundwater Flow Line
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
Aff Discharge Boundary
— — _ - Compartment (C) Boundary
►�+.+..+.- Water Table
Fractures
Ila- Groundwater Flow Direction
NOTE:
1. Idealized cross-section shows the hydraulic head relationships in recharge and discharge areas.
/DUKE
ENERGY
CAROLINAc

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L
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NOTE: LEGEND
ACTIVE ASH BASIN WASTE BOUNDARY 0 MONITOR WELL (SHALLOW ZONE)
NPDES OUTFALL 103
NPDES OUTFACE 002
1. ALLBOUNDARIES AREAPPROXIMATE.
2. PROPERTY BOUNDARY PROVIDED BY DUKE
ENERGY CAROLINAS.
600r
— — — — RETIRED ASH BASIN WASTE BOUNDARY
— — — — ASH BASIN GEOGRAPHIC LIMITATION
RETIRED ASH BASIN ASH LANDFILL WASTE
BOUNDARY
1'200' • — — RETIRED ASH BASIN ASH LANDFILL
0
0
Im'
MONITOR WELL (DEEP ZONE)
MONITOR WELL (BEDROCK ZONE)
PROPOSED EXTRACTION WELL CLUSTER
(S=SHALLOW, BR=BEDROCK)
PROPOSED SLANTED EXTRACTION WELL
DUKE ENERGY
ALLEN STEAM STATION
GASTON COUNTY, NORTH CAROLINA
COMPLIANCE BOUNDARY
SURFACE WATER STILLING WELL
FULL-SCALE DESIGN LAYOUT
GRAPHIC SCALE
ASH STORAGE AREAS AND STRUCTURAL FILLS
PROPOSED INFILTRATION WELL
HISTORICAL AND CURRENT COAL PILE
MANAGEMENTAREA
PROPOSED SLANTED INFILTRATION WELL
----
DUKE ENERGY CAROLINAS PROPERTY LINE
NPDES OUTFALL
AREA PROPOSED FOR GROUNDWATER
CORRECTIVE ACTION
EX/SIW/3LEX/IW
EVSIW/SLEwIw
PILOT TEST LOCATION 'DUKE
FULL-SCALE LOCATION '
IDr natwal
/� RCJa D I S
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BASE MAP SOURCE: USGS Digital Orthographic
FLOW DIRECTION
ENERGY
built assets
Quarter Quadrangle (DOQQ), 2019.
CAROLINAS
FIGURE
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1 1 I IOEX-29
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I \ I I i
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RETIRED ASH BASIN \ \ I I I
ASH LANDFILL \ I I I
I I I I I
I I I I I
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I I I I I
CELL 1
CELL 2A CELL 2B I I I
A13-31D I (j`' I
LEGEND
NOTES: ACTIVE ASH BASIN WASTE BOUNDARY 0 MONITOR WELL (SHALLOW ZONE)
1. ALL BOUNDARIES ARE APPROXIMATE. - RETIRED ASH BASIN WASTE BOUNDARY MONITOR WELL (DEEPZONE) DUKE ENERGY
2. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY
CAROLINA& - - - - ASH BASIN GEOGRAPHIC LIMITATION MONITOR WELL (BEDROCK ZONE) ALLEN STEAM STATION
3. DASHED TREATMENT SYSTEM PIPING INDICATES BURIED PIPE. RETIRED ASH BASIN ASH LANDFILL WASTE • PROPOSED EXTRACTION WELL CLUSTER GASTON COUNTY, NORTH CAROLINA
4. SOLID TREATMENT SYSTEM PIPING INDICATES ABOVE GROUND
PIPE. BOUNDARY (S=SHALLOW, BR=BEDROCK)
5. EXTRACTION WELLS EX-36, EX-42, AND EX-55/67 ARE ALSO PART - - - - RETIRED ASH BASIN ASH LANDFILL �m1 PROPOSED SLANTED EXTRACTION WELL
OF THE PILOT TEST SYSTEM. THESE LOCATIONS ARE LOCATED COMPLIANCE BOUNDARY
OUTSIDE OF THE AREA SHOWN ON THIS FIGURE. SURFACE WATER STILLING WELL
ASH STORAGE AREAS AND STRUCTURAL FILLS PROPOSED INFILTRATION WELL PILOT TEST LAYOUT
H15
O 2004OO MANAGEMENT A ETORICAL AND URRENT COAL PILE PROPOSED SLANTED INFILTRATION WELL
--- DUKE ENERGY CAROLINAS PROPERTY LINE NPDES OUTFALL
AREA PROPOSED FOR GROUNDWATER MSIW/SLEVIW PILOT TEST LOCATION f. DUKE
GRAPHIC SCALE 0 CORRECTIVE ACTION EVSIW/SVIw FULL-SCALE LOCATION V ENERGY _ FIGURE
LE
ABOVE GRADE TREATMENT SYSTEM PIPING FLOW DIRECTION CAROLINAS ���D I S fornaturaland I /�
BASE MAP SOURCE: USGS Digital Orthographic built assets 4
111111111111111111111111- SLANTED WELL LAYOUT
Quarter Quadrangle (DODO), 2019. - - - - SUBSURFACE TREATMENT SYSTEM PIPING SCREEN CASING (HORIZONTAL EQUIVALENT)

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I
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EXTRACTION
MANIFOLD
BLIND FLANGE
FOR FUTURE
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EXTENTS OF EXTRACTION SYSTEM ENCLOSURE (TYP. OF 3)
EXTRACTED
WATER
EQUALIZATION
TANK
TRANSFER
PUMPS
(D U TY/S TAN D BY/S PARE)
I
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BAG FILTRATION
FOR SOLIDS REMOVAL
I
COAL YARD
SUMP
PILOT TEST EXTRACTION WELLS
WELL ID
LOCATION DESCRIPTION
EX-1
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-2
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-3
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-4
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-5
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-9
NORTH OF MAIN COAL PILE
EX-10
NORTH OF MAIN COAL PILE
EX-11
NORTH OF MAIN COAL PILE
EX-12
NORTH OF MAIN COAL PILE
EX-13
NORTH OF MAIN COAL PILE
EX-14
NORTH OF MAIN COAL PILE
EX-15
NORTHWEST OF MAIN COAL PILE
SLEX-16
NORTHWEST OF MAIN COAL PILE
SLEX-18
WEST OF MAIN COAL PILE
SLEX-19
WEST OF MAIN COAL PILE
SLEX-20
WEST OF MAIN COAL PILE
SLEX-21
WEST OF MAIN COAL PILE
EX-70
SOUTHWEST OF SWITCHYARD
EX-75
NORTH OF MAIN COAL PILE
EX-76
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-82
NORTH OF MAIN COAL PILE
EX-83
NORTH OF MAIN COAL PILE
EX-84
NORTH OF MAIN COAL PILE
EX-85
NORTH OF MAIN COAL PILE
EX-86
NORTH OF MAIN COAL PILE
EX-87
NORTH OF MAIN COAL PILE
HYDRAULIC TEST WELLS*
WELL ID
LOCATION DESCRIPTION
EX-36
NORTHEAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-42
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-55
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-67
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
NOTE:
* - WELL INSTALLED FOR PUMP TEST ONLY, NOT CONNECTED TO PILOT TEST
SYSTEM
LINED RETENTION
BASIN
OUTFALL 006
(> DUKE
ENERGY
CAROLINAS
FULL-SCALE EXTRACTION WELLS
WELL ID
LOCATION DESCRIPTION
EX-06
SOUTH OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-07
SOUTH OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-08
SOUTH OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-22
SOUTH OF MAIN COAL PILE
EX-23
SOUTH OF MAIN COAL PILE
EX-24
SOUTH OF MAIN COAL PILE
EX-25
SOUTH OF MAIN COAL PILE
EX-26
SOUTH OF MAIN COAL PILE
EX-27
SOUTH OF MAIN COAL PILE
EX-28
SOUTH OF MAIN COAL PILE
EX-29
NORTHEAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-30
NORTHEAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-31
EAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-32
EAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-33
EAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-34
EAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-35
EAST OF RETIRED ASH BASIN ASH LANDFILL - WEST BANK OF CATAWBA RIVER
EX-37
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-38
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-39
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-40
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-41
EAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-43
SOUTHEAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-44
SOUTHEAST OF PRIMARY POND 3 - WEST BANK OF CATAWBA RIVER
EX-45
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-46
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-47
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-48
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-49
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-50
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-51
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-52
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-53
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-54
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-56
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-57
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-58
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-59
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-60
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-61
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-62
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-63
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-64
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-65
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-66
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-68
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-69
SOUTHEAST ACTIVE ASH BASIN - WEST BANK OF CATAWBA RIVER
EX-71
NORTH OF MAIN COAL PILE
EX-72
NORTH OF MAIN COAL PILE
EX-73
NORTH OF MAIN COAL PILE
EX-74
NORTH OF MAIN COAL PILE
EX-77
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-78
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-79
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-80
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER
EX-81
EAST OF LIVE COAL PILE - WEST BANK OF CATAWBA RIVER

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EXTENTS OF INFILTRATION PRE-TREATMENT SYSTEM
CLEAN WATER
EQUALIZATION
TANK
TRANSFER PUMPS
(DUTY/STANDBY)
CLEAN
WATER
INFILTRATION
SOURCE
WATER
NOT TO SCALE
HIGH FLOW BAG
FILTERS
ULTRAVIOLE-
LIGHT
DISINFECTIOI
JFILTRATI(
WATER
:)UALIZATI
TANK FOF
TREATEE
WATER
STORAGE
PILOT TEST INFILTRATION WELLS
WELL ID
LOCATION DESCRIPTION
SIW-1
NORTH OF MAIN COAL PILE
SIW-2
NORTH OF MAIN COAL PILE
SIW-3
NORTH OF MAIN COAL PILE
SIW-4
NORTH OF MAIN COAL PILE
SIW-5
NORTH OF MAIN COAL PILE
SIW-6
NORTH OF MAIN COAL PILE
SIW-7
NORTH OF MAIN COAL PILE
SIW-8
NORTH OF MAIN COAL PILE
SIW-9
NORTH OF MAIN COAL PILE
SIW-10
NORTH OF MAIN COAL PILE
SIW-11
EAST OF MAIN COAL PILE
SIW-12
EAST OF MAIN COAL PILE
IW-24
SOUTHWEST OF SWITCHYARD
IW-25
SOUTHWEST OF SWITCHYARD
IW-36
NORTHWEST OF MAIN COAL PILE
MW-42
NORTH OF MAIN COAL PILE
IW-43
NORTH OF MAIN COAL PILE
IW-45
NORTHEAST OF MAIN COAL PILE
IW-47
NORTH OF MAIN COAL PILE
IW-73
EAST OF MAIN COAL PILE
EXTENTS OF INFILTRATION SYSTEM ENCLOSURE
(TYP. OF 20)
TRANSFER
PUMPS
(DUTY/STANDBY/SPARE)
A
INFILTRATION
MANIFOLD
BLIND FLANGE
FOR FUTURE
EXPANSION
INFILTRATION
WELLS
I
I
I
(> DUKE
ENERGY
CAROLINAS
FULL-SCALE INFILTRATION WELLS
WELL ID
LOCATION DESCRIPTION
IW-1
SOUTHWEST OF SWITCHYARD
IW-2
SOUTHWEST OF SWITCHYARD
IW-3
SOUTHWEST OF SWITCHYARD
IW-4
WEST OF SWITCHYARD
IW-5
WEST OF SWITCHYARD
IW-6
WEST OF SWITCHYARD
IW-7
SOUTH OF SWITCHYARD
IW-8
SOUTH OF SWITCHYARD
IW-9
SOUTH OF SWITCHYARD
IW-10
SOUTH OF SWITCHYARD
IW-11
SOUTH OF SWITCHYARD
IW-12
SOUTH OF SWITCHYARD
MW-13
SOUTH OF SWITCHYARD
MW-14
SOUTH OF SWITCHYARD
MW-15
SOUTH OF SWITCHYARD
IW-16
SOUTH OF SWITCHYARD
IW-17
SOUTH OF SWITCHYARD
IW-18
SOUTH OF SWITCHYARD
IW-19
SOUTH OF SWITCHYARD
MW-20
SOUTH OF SWITCHYARD
MW-21
SOUTH OF SWITCHYARD
IW-22
SOUTH OF SWITCHYARD
IW-23
SOUTH OF SWITCHYARD
IW-27
SOUTH OF SWITCHYARD
IW-28
SOUTH OF SWITCHYARD
IW-29
SOUTH OF SWITCHYARD
IW-30
SOUTH OF SWITCHYARD
IW-31
SOUTHEAST OF SWITCHYARD
MW-32
SOUTHEAST OF SWITCHYARD
IW-33
NORTH OF MAIN COAL PILE
IW-34
NORTH OF MAIN COAL PILE
IW-35
NORTH OF MAIN COAL PILE
IW-37
NORTH OF MAIN COAL PILE
IW-38
NORTH OF MAIN COAL PILE
IW-39
NORTH OF MAIN COAL PILE
MW-40
NORTH OF MAIN COAL PILE
IW-41
NORTH OF MAIN COAL PILE
IW-44
NORTH OF MAIN COAL PILE
IW-46
NORTHEAST OF MAIN COAL PILE
IW-48
MAIN COAL PILE
IW-54
MAIN COAL PILE
IW-55
MAIN COAL PILE
IW-56
EAST OF MAIN COAL PILE
IW-57
MAIN COAL PILE
IW-58
MAIN COAL PILE
IW-59
MAIN COAL PILE
IW-60
MAIN COAL PILE
IW-61
MAIN COAL PILE
IW-62
MAIN COAL PILE
IW-63
MAIN COAL PILE
IW-64
MAIN COAL PILE
IW-65
MAIN COAL PILE
IW-66
EAST OF MAIN COAL PILE
IW-67
EAST OF MAIN COAL PILE
IW-68
MAIN COAL PILE
IW-69
MAIN COAL PILE
IW-70
MAIN COAL PILE
IW-71
MAIN COAL PILE
IW-72
MAIN COAL PILE
IW-74
MAIN COAL PILE
IW-75
MAIN COAL PILE
IW-76
MAIN COAL PILE

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 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 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 AND TRANSITION ZONE EXTRACTION WELLS WILL BE
CONSTRUCTED OF 10-FT. LONG, 6-INCH DIAMETER 0.010-INCH SLOTTED
STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80 POLYVINYL
CHLORIDE (PVC) RISER.

MAIN COAL PILE
48" X 48" CONCRETE VAULT WITH
A HIGHWAY RATED COVER
6" SEALED LOCKING CAP
(PRIOR TO SYSTEM CONNECTION)
EXISTING GRADE
PORTLAND TYPE 1/II NEAT CEMENT (TOP
OF BENTONITE SEAL TO SURFACE)
CONCRETE APRON
(48" X 48" SQUARE)
SLOPED AWAY FROM
WELL
APPROXIMATE GROUNDWATER TABLE (12 FT
SAPROLITE/TRANSITION ZONE
SLANTED EXTRACTION WELL
10" DIA. DRILLED HOLE
SAND PACK
(BOTTOM OF WELL TO 2 FT.
SAPROLITE ZONE ABOVE WELL SCREEN)
BEDROCKZONE
FEET 0
CENTRALIZERS SHALL BE
PLACED AT 50-FEET INTERVALS
2-FEET OF BENTONITE PELLETS/CHIPS
TOTAL WELL DEPTH
* SEE FIGURE DIMENSION "A" IN
WELL TABLE
DEPTH OF WELL SUMP 75
* SEE FIGURE DIMENSION "C"
IN WELL TABLE
700
WELL MATERIALS:
1. SAPROLITE/TRANSITION ZONE SLANTED EXTRACTION WELLS WILL BE
CONSTRUCTED OF 10-FT. LONG, 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 10" SEALED LOCKING CAP (PRIOR TO SYSTEM CONNECTION)
A HIGHWAY RATED COVER r
EXISTING GRADE
TOTAL WELL DEPTH
* SEE FIGURE DIMENc
"A" IN WELL TABLE
CONCRETE APRON (48" X 48" SQUARE)
SLOPED AWAY FROM WELL
14" DIA. DRILLED HOLE
PORTLAND TYPE 1/11 NEAT CEMENT
CONDUCTOR CASING - SCH 80
PVC * SEE FIGURE DIMENSION
"B" IN WELL TABLE
9g' 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 10-FT LONG, 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 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 DIMEN:
"A" IN WELL TABLE
PORTLAND TYPE 1/II 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 WELL 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 25-FT. LONG, 6-INCH DIAMETER 0.010-INCH
SLOTTED STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80
POLYVINYL CHLORIDE (PVC) RISER.

MAIN COAL PILE
48" X 48" CONCRETE VAULT WITH 6" SEALED LOCKING CAP
A HIGHWAY RATED COVER (PRIOR TO SYSTEM CONNECTION)
TRANSITION ZONE SLANTED
CLEAN WATER WELL
CONCRETE APRON (48" X 48"
SQUARE) SLOPED AWAY FROM WELL
SAPROLITE ZONE
SLANTED CLEAN
WATER WELL APPROXIMATE GROUNDWATER TABLE (12 FT DEEP)
PORTLAND TYPE 1/11
NEAT CEMENT (TOP OF
BENTONITE SEAL TO
SURFACE)
2-FEET OF FINE SAND J CENTRALIZERS SHALL BE
AND 2-FEET OF VERY PLACED AT 50-FEET INTERVALS
FINE SAND (4 FT.
THICKNESS TOTAL) 2-FEET OF FINE SAND AND 2-FEET OF
SAND PACK ~'> VERY FINE SAND (4 FT. THICKNESS TOTAL)
(BOTTOM OF WELL TO 2 FT.
ABOVE WELL SCREEN)
TOTAL WELL DEPTH
FIGURESEE DIMENSION
10" DIA. DRILLED HOLE
"A" IN WELL TAB E
SAPROLITE ZONE
'•�i-
TRANSITION ZONE ;
-10-20 FT THICK
�•:
BEDROCK ZONE
DEPTH OF WELL SUMP
FEET 0 * SEE FIGURE DIMENSION "C" 75 700
IN WELL TABLE
CLEAN WATER
WELL MATERIALS:
1. SAPROLITE ZONE SLANTED CLEAN WATER INFILTRATION WELLS WILL BE
CONSTRUCTED OF 60-FT. LONG, 6-INCH DIAMETER 0.010-INCH SLOTTED
STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80 POLYVINYL
CHLORIDE (PVC) RISER.
2. TRANSITION ZONE SLANTED CLEAN WATER INFILTRATION WELLS WILL BE
CONSTRUCTED OF 30-FT. LONG, 6-INCH DIAMETER 0.010-INCH SLOTTED
STAINLESS -STEEL WIRE -WRAPPED SCREEN AND SCHEDULE 80 POLYVINYL
CHLORIDE (PVC) RISER.

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GWA-8D'_ GWA-7D Ex 71 Q •IW-dIP CP2D •IW-47 LIVE
- �' IW-3` EX-7U Q IW-39 40 IW 1/ V �5 IW- 6 COAL
• • IW-25 I1rn/-3/ • SIW-3/4`'rl' qio- • PILE EX 30 CP-0
W-2 IW-24 _I�! 38 SIW-5/� 6 ��y 10/ 6 IW-54 IW 66 A7
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GWA-18S C:CH-4DA fI MAIN 1 HOLDING 1
SLEX-18 `d)I COAL I BASIN ASH BASIN
PILE
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CCP.-. SLEX-19 LIMITATION
/ ASH AE-41 D Q �IIICDI WEST OF MAIN Z
AGE STORSD SLEX-20 COAL PILE �� p
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z - - AB-431D
0
i'. 32DV-M/A-*RR
GWA-19D
C
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A- GWA-car
J AB-20D
AB-34
B-34S
RETIRED ASH BASIN
ASH LANDFILL
I
Wgri
'... ,.. CELL 1 -- CELL 2A CELL 2B AB-31 S
ASH AB-35BR AB-31D�
STORAGE
AB-35D
,AB-35PWS
^ . EMERGENCY SPILLWAY
ACII- ASIIBASIN
I OAK UA
7'AB-26D Q
A; 265 to
EX-42* G'V. A-3D
IN
X-43
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.- EX-44• I
NORTH BANK
CR-16BR CIE 5
EX46,58 Q
EX-07/59 •
SOUTH BANK EX-48/6U
CCR-17D E �N62
CJ7S 1/s3
WL-3
MAB2. B ABAB-AB-10S
NPDES OUTFACE 104
NOTE:
LEGEND
1. ALL BOUNDARIES ARE APPROXIMATE.
ACTIVE ASH BASIN WASTE BOUNDARY
MONITOR WELL (SHALLOW ZONE)
2. PROPERTY BOUNDARY PROVIDED BY DUKE
ENERGY CAROLINAS.
- - - - RETIRED ASH BASIN WASTE BOUNDARY
MONITOR WELL (DEEP ZONE)
- - - - ASH BASIN GEOGRAPHIC LIMITATION
MONITOR WELL (BEDROCK ZONE)
RETIRED ASH BASIN ASH LANDFILL WASTE
®
PROPOSED EXTRACTION WELL CLUSTER
BOUNDARY
(S=SHALLOW,BR=BEDROCK)
O F)OO!
1,200-
- - - RETIRED ASH BASIN ASH LANDFILL
PROPOSED SLANTED EXTRACTION WELL
COMPLIANCE BOUNDARY
SURFACE WATER STILLING WELL
GRAPHIC SCALE
ASH STORAGE AREAS AND STRUCTURAL
PROPOSED INFILTRATION WELL
FILLS
HISTORICAL AND CURRENT COAL PILE PROPOSED SLANTED INFILTRATION WELL
MANAGEMENT AREA • NPDES OUTFALL
---- DUKE ENERGY CAROLINAS PROPERTY LINE EX/SIW/SLExnW PILOT TEST LOCATION DUKE AREAS FOR DATA COLLECTION AND E%/SIw/SLEx/IW FULL-SCALE LOCATION DUKE
BASE MAP SOURCE: USGS Digital Orthographic HYDRAULIC TESTING ENERGY
Quarter Quadrangle (DOQQ), 2019. FLOW DIRECTION CAROLINAS
DUKEENERGY
ALLEN STEAM STATION
GASTON COUNTY. NORTH CAROLINA
MONITORING LOCATIONS
FIGURE
P ARCAD I S s Consultancy 4-9
IOr naturaland
built assets

APPENDIX A

Appendix A
Infiltration Water Analytical Results
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
Nitrate (EPA 353.2, EPA 365.1
AARCAD IS be ame-consultancy
far natural and
6uiYassets
Nitrite + Nitrate (Colorimetric) mg-N/L 6.3 0.353
Total Phosphorus (Colorimetric) mg-P/L 0.015
Chloride
mg/L
250
4.2
Fluoride
mg/L
2
<0.1
Sulfate
mg/L
250
3.7
Sulfide
mg/L
0.1
<0.1
Mercury (EPA 245.1)
Mercury pg/L I -- 1 <0.05
Dissolved Metals (by ICP EPA 200.7)
Aluminum (Al)
mg/L
1.238
0.517
Barium (Ba)
mg/L
0.7
0.017
Boron (B)
mg/L
0.7
<0.05
Calcium (Ca)
mg/L
--
3.48
Iron (Fe)
mg/L
1.422
0.533
Lithium (Li)
mg/L
0.003
<0.005
Magnesium (Mg)
mg/L
--
1.64
Manganese (Mn)
mg/L
0.608
0.034
Potassium (K)
mg/L
--
1.66
Sodium (Na)
mg/L
--
3.2
Strontium (Sr)
mg/L
0.3
0.03
Zinc (Zn)
mg/L
1
<0.005
Total Metals (by ICP EPA 200.7)
Aluminum (Al)
mg/L
1.238
0.708
Barium (Ba)
mg/L
0.7
0.017
Boron (B)
mg/L
700
<0.05
Calcium (Ca)
mg/L
21
3.45
Iron (Fe)
mg/L
300
0.571
Lithium (Li)
mg/L
0.003
<0.005
Magnesium (Mg)
mg/L
6
1.63
Manganese (Mn)
mg/L
50
0.034
Potassium (K)
mg/L
5
1.67
Sodium (Na)
mg/L
21
3.18
Strontium (Sr)
mg/L
0.3
0.029
Total Hardness (Ca and Mg)
mg/L (CaCO3)
0
15.3
Zinc (Zn)
mg/L
45
0.008
Dissolved Metals (by ICP MS EPA 200.7)
Antimony (Sb)
pg/L
1
<1
Arsenic (As)
pg/L
10
<1
Beryllium (Be)
pg/L
4
<1
Cadmium (Cd) Low Level
pg/L
2
<0.1
Chromium (Cr)
pg/L
9
<1
Cobalt (Co)
pg/L
6
<1
Copper (Cu)
pg/L
3
1.47
Lead (Pb) Low Level
pg/L
15
0.215
Molybdenum (Mo)
pg/L
7
<1
Nickel (Ni)
pg/L
100
<1
Selenium (Se)
pg/L
0.5
<1
Silver (Ag) Low Level
pg/L
20
<0.3
Thallium (TI) Low Level
pg/L
0.2
<0.2
Vanadium (V) Low Level
pg/L
4
1.51
Page 1 of 2

Appendix A
Infiltration Water Analytical Results
Pilot Test Work Plan
Duke Energy - Allen Steam Station
Gaston County, North Carolina
AARCAD IS be ame-consultancy
far natural and
6uiYassets
Antimony (Sb)
pg/L
1
<1
Arsenic (As)
pg/L
10
<1
Beryllium (Be)
pg/L
4
<1
Cadmium (Cd) Low Level
pg/L
2
<0.1
Chromium (Cr)
pg/L
9
<1
Cobalt (Co)
pg/L
6
<1
Copper (Cu)
pg/L
3
1.45
Lead (Pb) Low Level
pg/L
15
0.216
Molybdenum (Mo)
pg/L
7
<1
Nickel (Ni)
pg/L
100
<1
Selenium (Se)
pg/L
0.5
<1
Silver (Ag) Low Level
pg/L
20
<0.3
Thallium (TI) Low Level
pg/L
0.2
<0.2
Vanadium (V) Low Level
pg/L
4
1.63
Geochemical Parameters
Total Dissolved Solids
mg/L
500
62
Total Organic Carbon
mg/L
12
1.7
Total Suspended Solids
mg/L
7
pH
SU
7.1
Dissolved Oxygen (DO)
mg/L
DO Saturation
%
Temperature
°F
68
Specific Conductance
PS/cm
47
Total Coliform
Present
1
Fecal/E. Coli
Present
1
General Notes:
Screening criteria used is the maximum of the 02L, IMAC, or shallow background value
—" indicates no screening value or not applicable
Blank cells are non -detect or has no standard.
Acronyms and Abbreviations:
% = percent
°F = degrees Fahrenheit
COI - constituent of interest
IMAC - interim maximum allowable concentration
IMP - interim monitoring plan
pS/cm - microsiemens per centimeter
NE - not established
pg/L - micrograms per liter
mg/L - milligrams per liter
PCB = polychlorinated biphenyl
pCi/L - picoCuries per liter
SVOC = semi -volatile organic compound
SU - standard units
VOC = volatile organic compound
Page 2 of 2

DUE Analytical Laboratory
ENERGY
Y
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
Order Number: J20050103
Project Name: Allen Infiltration Water Evaluation
Customer Name(s): Courtney Murphy, RobbinJolly,Randy Gantt,RobertWyl
Customer Address: 253 Plant Allen Road
Belmont, NC 28012
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: Pie, 0 j pate; 5/21/2020
(Signature)
Pegg Kendall
Program Comments:
Hg1631 was not submitted as indicated on the COC.
Data Flags & Calculations:
Page 1 of 60
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:
Page 2 of 60
Collection
Sample ID Plant/Station Date and Time Collected By Sample Description
2020012228 ALLEN
1 Total Samples
07-May-20 8:00 AM Robbin Jolly
Service Water

Page 3 of 60
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. 0 Yes ❑ No
Report Sections Included:
d❑ Job Summary Report
❑ Sample Identification
❑ Technical Validation of Data Package
d❑ Analytical Laboratory Certificate of Analysis
❑ Analytical Laboratory QC Report
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑ Chain of Custody
❑ Electronic Data Deliverable (EDD) Sent Separately
Reviewed By: Peggy Kendall Date: 5/21/2020

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20050103
Site: Service Water
Collection Date: 05/07/2020 08:00 AM
Analyte Result Units Qualifiers RDL
TOTAL ALKALINITY - Q20050338
Total Alkalinity as CaCO3 19.8 mg/L 5
Alkalinity, Carbonate < 5 mg/L 5
Alkalinity, Bicarbonate 19.8 mg/L 5
NITRITE + NITRATE (COLORIMETRIC) - 020050322
Nitrite + Nitrate (Colorimetric) 0.353 mg-N/L 0.01
TOTAL PHOSPHORUS (COLORIMETRIC) - Q20050282
Total Phosphorus (Colorimetric) 0.015 mg-P/L 0.005
HEXAVALENT CHROMIUM Cr(VI) - (Analysis Performed by Pace Laboratories)
Vendor Parameter
Complete
INORGANIC IONS BY IC - 020050175
Chloride
4.2
mg/L
0.1
Fluoride
< 0.1
mg/L
0.1
Sulfate
3.7
mg/L
0.1
Field Parameters -
pH
7.10
SI Units
Temperature
68
°F
Specific Conductance
47
umhos/cm
MERCURY (COLD VAPOR) IN WATER - Q20050214
Mercury (Hg)
< 0.05
ug/L
0.05
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - Q20050193
Aluminum (Al)
0.517
mg/L
0.01
Barium (Ba)
0.017
mg/L
0.005
Boron (B)
< 0.05
mg/L
0.05
Calcium (Ca)
3.48
mg/L
0.05
Iron (Fe)
0.533
mg/L
0.01
Lithium (Li)
< 0.005
mg/L
0.005
Magnesium (Mg)
1.64
mg/L
0.01
Manganese (Mn)
0.034
mg/L
0.005
Potassium (K)
1.66
mg/L
0.1
Sodium (Na)
3.20
mg/L
0.05
Strontium (Sr)
0.030
mg/L
0.005
Zinc (Zn)
< 0.005
mg/L
0.005
Sample #: 2020012228
Matrix: GW WW
Page 4 of 60
DF
Method
Analysis Date/Time
Analyst
1
SM 2320B-2011
05/15/2020 18:16
PARMSTR
1
SM 2320B-2011
05/15/2020 18:16
PARMSTR
1
SM 2320B-2011
05/15/2020 18:16
PARMSTR
1
EPA 353.2
05/15/2020 09:23
MVALLIE
1
EPA 365.1
05/14/2020 13:21
MVALLIE
Vendor Method V_PACE
1 EPA 300.0
05/08/2020 20:08
BGN9034
1 EPA 300.0
05/08/2020 20:08
BGN9034
1 EPA 300.0
05/08/2020 20:08
BGN9034
1 Field Work
1 Field Work
1 Field Work
1 EPA 245.1
05/11/2020 14:00
DMFRANC
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3
1 EPA 200.7
05/14/2020 14:07
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20050103
Site: Service Water
Collection Date: 05/07/2020 08:00 AM
Analyte Result Units Qualifiers
TOTAL RECOVERABLE METALS BY ICP - Q20050256
Aluminum (AI)
0.708
mg/L
Barium (Ba)
0.017
mg/L
Boron (B)
< 0.05
mg/L
Calcium (Ca)
3.45
mg/L
Iron (Fe)
0.571
mg/L
Lithium (Li)
< 0.005
mg/L
Magnesium (Mg)
1.63
mg/L
Manganese (Mn)
0.034
mg/L
Potassium (K)
1.67
mg/L
Sodium (Na)
3.18
mg/L
Strontium (Sr)
0.029
mg/L
Total Hardness (Ca and Mg)
15.3
mg/L
(CaCO3)
Zinc (Zn)
0.008
mg/L
Page 5 of 60
Sample #:
2020012228
Matrix:
GW WW
RDL
DF
Method
Analysis Date/Time
Analyst
0.01
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.005
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.05
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.05
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.01
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.005
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.01
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.005
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.1
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.05
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.005
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.066
1
EPA 200.7
05/14/2020 14:58
MHALL3
0.005 1 EPA 200.7 05/14/2020 14:58 MHALL3
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED) - Q20050194
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)
1.47
ug/L
Lead (Pb) Low Level
0.215
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
1.51
ug/L
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
0.1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
0.2
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
1
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
0.3
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
0.2
1
EPA 200.8
05/13/2020 19:42
CWSPEN3
0.3
1
EPA 200.8
05/13/2020 19:42
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20050103
Site: Service Water
Collection Date: 05/07/2020 08:00 AM
Analyte Result
Units Qualifiers
RDL
DF
TOTAL RECOVERABLE METALS BY ICP-MS - Q20050258
Antimony (Sb) < 1
ug/L
1
1
Arsenic (As) < 1
ug/L
1
1
Beryllium (Be) < 1
ug/L
1
1
Cadmium (Cd) Low Level < 0.1
ug/L
0.1
1
Chromium (Cr) < 1
ug/L
1
1
Cobalt (Co) < 1
ug/L
1
1
Copper (Cu) 1.45
ug/L
1
1
Lead (Pb) Low Level 0.216
ug/L
0.2
1
Molybdenum (Mo) < 1
ug/L
1
1
Nickel (Ni) < 1
ug/L
1
1
Selenium (Se) < 1
ug/L
1
1
Silver (Ag) Low Level < 0.3
ug/L
0.3
1
Thallium (TI) Low Level < 0.2
ug/L
0.2
1
Vanadium (V) Low Level 1.63
ug/L
0.3
1
Miscellaneous Tests by a Vendor Laboratory
- (Analysis Performed by
Pace Laboratories)
Vendor Parameter Complete
SULFIDE - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
SEMIVOLATILES - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
TOTAL DISSOLVED SOLIDS - Q20050155
TDS 62.0
mg/L
25
1
Total Carbon - Q20050188
TOC 1.7
mg/L
0.1
1
TOTAL SUSPENDED SOLIDS - Q20050148
TSS 7
mg/L
5
1
Volatiles by GCMS EPA 8260 - (Analvsis Performed by Pace Laboratories)
Vendor Parameter Complete
Sample #: 2020012228
Matrix: GW WW
Page 6 of 60
Method
Analysis Date/Time
Analyst
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
EPA 200.8
05/19/2020 18:34
CWSPEN3
Vendor Method
V_PACE
Vendor Method
V_PACE
Vendor Method
V_PACE
SM2540C
05/08/202010:57
GBSINGL
SM5310C/EPA9060A 05/11/202014:00 Ghutchi
SM2540D 05/08/2020 07:05 GBSINGL
Vendor Method V_PACE

Certificate of Laboratory Analysis Page 7 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050338 ALK_CarbBicarb TOTAL ALKALINITY
Duplicate # 1
Parameter
Measured
Final
Alkalinity, Bicarbonate
19.7
19.7
Alkalinity, Carbonate
0
0
Total Alkalinity as
19.7
19.7
CaCO3
LCS # 1
Parameter Measured Final
Total Alkalinity as 115 115
CaCO3
Parent Sample: J20050103 -- 2020012228
Units:
Dil
Limit Range
RPD Qualifier
mg/L
1
0 - 20%
0.253
mg/L
1
0 - 20%
0
mg/L
1
0 - 20%
0.253
Units:
Dil
Spike % Recovery LCL UCL
Qualifier
mg/L
1
105 110 85 115

Certificate of Laboratory Analysis Page 8 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050322 C_NO2NO3 NITRITE + NITRATE (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0009
-0.0009
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0036
-0.0036
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 3
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0033
-0.0033
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.126
1.26
mg-N/L
10
1.21
104 90
110
(Colorimetric)
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.126
1.26
mg-N/L
10
1.21
104 90
110
(Colorimetric)
LCS # 3
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.124
1.25
mg-N/L
10
1.21
103 90
110
(Colorimetric)
MS # 1
Parent Sample:
J20040391
-- 2020010426
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
1.15
1.15
mg-N/L
1
0.25
104 90
110
(Colorimetric)
MSD # 1
Parent Sample:
J20040391
-- 2020010426
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
Nitrite + Nitrate
1.14
1.14
mg-N/L
1
0.25
101 90
110
0.84
(Colorimetric)

Certificate of Laboratory Analysis Page 9 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050282 C_TP TOTAL PHOSPHORUS (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Total Phosphorus
0.0008
0.0008
mg-P/L
1
0.005
< 1/2 RDL
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Total Phosphorus
0.0011
0.0011
mg-P/L
1
0.005
< 1/2 RDL
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Units:
Dil
spike
% Recovery
LCL
UCL Qualifier
Total Phosphorus
0.0989
0.989
mg-P/L
10
0.953
104
90
110
(Colorimetric)
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Total Phosphorus
0.0993
0.993
mg-P/L
10
0.953
104
90
110
(Colorimetric)
MS # 1
Parameter
Measured
Final
Total Phosphorus
0.0547
0.0547
(Colorimetric)
MSD # 1
Parameter
Measured
Final
Total Phosphorus
0.0549
0.0549
(Colorimetric)
Parent Sample: J20030197 -- 2020006418
Units: Dil Spike % Recovery LCL UCL Qualifier
mg-P/L 1 0.05 104 90 110
Parent Sample: J20030197 -- 2020006418
Units: Dil Spike % Recovery LCL UCL RPD Qualifier
mg-P/L 1 0.05 105 90 110 0.365 -

Certificate of Laboratory Analysis Page 10 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050175 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
5.19
5.19
mg/L
1
5
104 90
110
Fluoride
5.36
5.36
mg/L
1
5
107 90
110
Sulfate
5.2
5.2
mg/L
1
5
104 90
110
Parent Sample:
J20040135
-- 2020009194
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
5.15
51.5
mg/L
10
20
103 80
120
Fluoride
2.15
2.15
mg/L
1
2
98.6 80
120
Sulfate
6.36
63.6
mg/L
10
20
99.8 80
120
Parent Sample:
J20040135
-- 2020009194
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD
Qualifier
Chloride
5.16
51.6
mg/L
10
20
104 80
120
0.579
Fluoride
2.11
2.11
mg/L
1
2
96.3 80
120
2.31
Sulfate
6.36
63.6
mg/L
10
20
99.9 80
120
0.145

Certificate of Laboratory Analysis Page 11 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050214 HG 245.1 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter Measured Final
Mercury (Hg) 0.01 0.01
LCS # 1
Parameter Measured Final
Mercury (Hg) 2.09 2.09
MS # 1
Parameter Measured Final
Mercury (Hg) 0.938 0.938
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.93 0.93
MS # 2
Parameter Measured Final
Mercury (Hg) 0.981 0.981
MSD # 2
Parameter Measured Final
Mercury (Hg) 0.987 0.987
Units:
Dil
RDL
Relative Concentration
Qualifier
ug/L
1
0.05
< 1/2 RDL
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
ug/L
1
2
105 85
115
Parent Sample:
J20040466 -- 2020010953
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
ug/L
1
1
92.6 70
130
Parent Sample:
J20040466 -- 2020010953
Units:
Dil
Spike
% Recovery LCL
UCL RPD Qualifier
ug/L
1
1
91.8 70
130 0.868 -
Parent Sample:
J20050103 -- 2020012228
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
ug/L
1
1
97.2 70
130
Parent Sample:
J20050103 -- 2020012228
Units:
Dil
Spike
% Recovery LCL
UCL RPD Qualifier
ug/L
1
1
97.8 70
130 0.615 -

Certificate of Laboratory Analysis Page 12 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050193 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Aluminum (AI)
0.00124
0.00124
mg/L
1
0.01
< 1/2 RDL
Barium (Ba)
0.000052
0.000052
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.000346
0.000346
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.00174
0.00174
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.000705
0.000705
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.000059
0.000059
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
0.000299
0.000299
mg/L
1
0.01
< 1/2 RDL
Manganese (Mn)
0.000412
0.000412
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
0.00335
0.00335
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
0.0117
0.0117
mg/L
1
0.05
< 1/2 RDL
Strontium (Sr)
-0.000034
-0.000034
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
-0.000755
-0.000755
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
5.32
5.32
mg/L
1
5
106
85
115
Barium (Ba)
5
5
mg/L
1
5
100
85
115
Boron (B)
4.73
4.73
mg/L
1
5
94.5
85
115
Calcium (Ca)
4.84
4.84
mg/L
1
5
96.8
85
115
Iron (Fe)
4.91
4.91
mg/L
1
5
98.3
85
115
Lithium (Li)
4.77
4.77
mg/L
1
5
95.4
85
115
Magnesium (Mg)
4.95
4.95
mg/L
1
5
99.1
85
115
Manganese (Mn)
4.83
4.83
mg/L
1
5
96.7
85
115
Potassium (K)
4.92
4.92
mg/L
1
5
98.3
85
115
Sodium (Na)
4.82
4.82
mg/L
1
5
96.4
85
115
Strontium (Sr)
4.96
4.96
mg/L
1
5
99.2
85
115
Zinc (Zn)
4.99
4.99
mg/L
1
5
99.7
85
115
MS # 1
Parent Sample:
J20050060 -- 2020012088
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
5.29
5.29
mg/L
1
5
112
70
130
Barium (Ba)
5.19
5.19
mg/L
1
5
107
70
130
Boron (B)
4.99
4.99
mg/L
1
5
107
70
130
Calcium (Ca)
15
150
mg/L
10
5
73.2
70
130
Iron (Fe)
7.06
7.06
mg/L
1
5
112
70
130
Lithium (Li)
4.92
4.92
mg/L
1
5
103
70
130
Magnesium (Mg)
83.5
83.5
mg/L
1
5
67.2
70
130 M4
Manganese (Mn)
18.3
18.3
mg/L
1
5
125
70
130
Potassium (K)
6.02
6.02
mg/L
1
5
104
70
130
Sodium (Na)
62.4
62.4
mg/L
1
5
83.7
70
130

Certificate of Laboratory Analysis Page 13 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050193 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
MS # 1
Parameter
Measured
Strontium (Sr)
5.87
Zinc (Zn)
4.83
MSD # I
Parameter
Measured
Aluminum (AI)
5.27
Barium (Ba)
5.15
Boron (B)
5
Calcium (Ca)
14.9
Iron (Fe)
6.94
Lithium (Li)
5
Magnesium (Mg)
83.4
Manganese (Mn)
18.2
Potassium (K)
6.02
Sodium (Na)
62.5
Strontium (Sr)
5.92
Zinc (Zn)
4.76
Parent Sample:
J20050060 -- 2020012088
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
5.87
mg/L
1
5
104 70
130
4.83
mg/L
1
5
108 70
130
Parent Sample:
J20050060
-- 2020012088
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
5.27
mg/L
1
5
110 70
130
3.91
5.15
mg/L
1
5
105 70
130
1.45
5
mg/L
1
5
106 70
130
7.8
149
mg/L
10
5
42.2 70
130
1.04 M4
6.94
mg/L
1
5
110 70
130
6.67
5
mg/L
1
5
103 70
130
4.78
83.4
mg/L
1
5
64.8 70
130
0.146 M4
18.2
mg/L
1
5
121 70
130
5.79
6.02
mg/L
1
5
103 70
130
0.683
62.5
mg/L
1
5
122 70
130
3
5.92
mg/L
1
5
104 70
130
4.68
4.76
mg/L
1
5
106 70
130
9.98
Qualifiers:
M4 The spike recovery value was unusable since the analyte concentration in the sample was disproportionate
to the spike level. The associated Laboratory Control Spike recovery was acceptable.

Certificate of Laboratory Analysis Page 14 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050256 1CP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (AI)
0.00496
0.00496
mg/L
1
0.01
< 1/2 RDL
Barium (Ba)
0.000014
0.000014
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.00139
0.00139
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.00971
0.00971
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.000705
0.000705
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
-0.000457
-0.000457
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
-0.000994
-0.000994
mg/L
1
0.01
< 1/2 RDL
Manganese (Mn)
0.000419
0.000419
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
0.0154
0.0154
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
0.0052
0.0052
mg/L
1
0.05
< 1/2 RDL
Strontium (Sr)
0.000025
0.000025
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.000169
0.000169
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
5.36
5.36
mg/L
1
5
107
85
115
Barium (Ba)
5.1
5.1
mg/L
1
5
102
85
115
Boron (B)
4.77
4.77
mg/L
1
5
95.5
85
115
Calcium (Ca)
4.91
4.91
mg/L
1
5
98.1
85
115
Iron (Fe)
4.99
4.99
mg/L
1
5
99.9
85
115
Lithium (Li)
4.75
4.75
mg/L
1
5
95
85
115
Magnesium (Mg)
5.01
5.01
mg/L
1
5
100
85
115
Manganese (Mn)
4.93
4.93
mg/L
1
5
98.6
85
115
Potassium (K)
4.99
4.99
mg/L
1
5
99.8
85
115
Sodium (Na)
4.87
4.87
mg/L
1
5
97.3
85
115
Strontium (Sr)
4.87
4.87
mg/L
1
5
97.4
85
115
Zinc (Zn)
5.06
5.06
mg/L
1
5
101
85
115
MS # 1
Parent Sample:
J20050109 -- 2020012275
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (AI)
5.71
5.71
mg/L
1
5
112
70
130
Barium (Ba)
5.3
5.3
mg/L
1
5
108
70
130
Boron (B)
5
5
mg/L
1
5
107
70
130
Calcium (Ca)
12.2
122
mg/L
10
5
122
70
130
Iron (Fe)
5.73
5.73
mg/L
1
5
111
70
130
Lithium (Li)
4.96
4.96
mg/L
1
5
106
70
130
Magnesium (Mg)
19.6
19.6
mg/L
1
5
127
70
130
Manganese (Mn)
5.08
5.08
mg/L
1
5
111
70
130
Potassium (K)
15.4
15.4
mg/L
1
5
118
70
130
Sodium (Na)
43.1
43.1
mg/L
1
5
111
70
130

Certificate of Laboratory Analysis Page 15 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050256 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MS # 1
Parameter
Measured
Strontium (Sr)
5.91
Zinc (Zn)
4.97
MSD # I
Parameter
Measured
Aluminum (AI)
5.62
Barium (Ba)
5.18
Boron (B)
4.92
Calcium (Ca)
12
Iron (Fe)
5.6
Lithium (Li)
4.86
Magnesium (Mg)
19.2
Manganese (Mn)
4.96
Potassium (K)
15.1
Sodium (Na)
42.3
Strontium (Sr)
5.8
Zinc (Zn)
4.87
Parent Sample:
J20050109 -- 2020012275
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
5.91
mg/L
1
5
108 70
130
4.97
mg/L
1
5
110 70
130
Parent Sample:
J20050109
-- 2020012275
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
5.62
mg/L
1
5
110 70
130
1.46
5.18
mg/L
1
5
106 70
130
1.09
4.92
mg/L
1
5
106 70
130
6.11
120
mg/L
10
5
76.2 70
130
1.88
5.6
mg/L
1
5
109 70
130
6.51
4.86
mg/L
1
5
104 70
130
4.95
19.2
mg/L
1
5
121 70
130
5.11
4.96
mg/L
1
5
108 70
130
8.45
15.1
mg/L
1
5
111 70
130
6.01
42.3
mg/L
1
5
96.3 70
130
1.76
5.8
mg/L
1
5
105 70
130
3.54
4.87
mg/L
1
5
108 70
130
8.17

Certificate of Laboratory Analysis Page 16 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050194 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Antimony (Sb)
-0.046
-0.046
ug/L
1
1
< 1/2 RDL
Arsenic (As)
-0.028
-0.028
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
0.002
0.002
ug/L
1
1
< 1/2 RDL
Cadmium (Cd) Low Level
0
0
ug/L
1
0.1
< 1/2 RDL
Chromium (Cr)
0.009
0.009
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0
0
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.25
-0.25
ug/L
1
1
< 1/2 RDL
Lead (Pb) Low Level
-0.002
-0.002
ug/L
1
0.2
< 1/2 RDL
Molybdenum (Mo)
-0.02
-0.02
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.031
-0.031
ug/L
1
1
< 1/2 RDL
Selenium (Se)
-0.174
-0.174
ug/L
1
1
< 1/2 RDL
Silver (Ag) Low Level
-0.002
-0.002
ug/L
1
0.3
< 1/2 RDL
Thallium (TI) Low Level
0.024
0.024
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.003
0.003
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
48.2
48.2
ug/L
1
50
96.3
85
115
Arsenic (As)
45.4
45.4
ug/L
1
50
90.7
85
115
Beryllium (Be)
44.8
44.8
ug/L
1
50
89.5
85
115
Cadmium (Cd) Low Level
49.9
49.9
ug/L
1
50
99.8
85
115
Chromium (Cr)
51.4
51.4
ug/L
1
50
103
85
115
Cobalt (Co)
49.2
49.2
ug/L
1
50
98.4
85
115
Copper(Cu)
49
49
ug/L
1
50
98
85
115
Lead (Pb) Low Level
50.2
50.2
ug/L
1
50
100
85
115
Molybdenum (Mo)
50.1
50.1
ug/L
1
50
100
85
115
Nickel (Ni)
48.7
48.7
ug/L
1
50
97.3
85
115
Selenium (Se)
46.2
46.2
ug/L
1
50
92.4
85
115
Silver (Ag) Low Level
51.3
51.3
ug/L
1
50
103
85
115
Thallium (TI) Low Level
49.3
49.3
ug/L
1
50
98.6
85
115
Vanadium (V) Low Level
50.2
50.2
ug/L
1
50
100
85
115
MS # 1
Parent Sample:
J20050060 -- 2020012089
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
51.3
51.3
ug/L
1
50
103
70
130
Arsenic (As)
53
53
ug/L
1
50
100
70
130
Beryllium (Be)
48.8
48.8
ug/L
1
50
97.6
70
130
Cadmium (Cd) Low Level
50.5
50.5
ug/L
1
50
101
70
130
Chromium (Cr)
51.8
51.8
ug/L
1
50
103
70
130
Cobalt (Co)
50.2
50.2
ug/L
1
50
100
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050194 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Copper (Cu)
50.1
50.1
ug/L
1
50
Lead (Pb) Low Level
50.9
50.9
ug/L
1
50
Molybdenum (Mo)
56.8
56.8
ug/L
1
50
Nickel (Ni)
49.7
49.7
ug/L
1
50
Selenium (Se)
48.8
48.8
ug/L
1
50
Silver (Ag) Low Level
51.5
51.5
ug/L
1
50
Thallium (TI) Low Level
49.7
49.7
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)
49.6
49.6
ug/L
1
50
Arsenic (As)
51.7
51.7
ug/L
1
50
Beryllium (Be)
47
47
ug/L
1
50
Cadmium (Cd) Low Level
49.5
49.5
ug/L
1
50
Chromium (Cr)
50.9
50.9
ug/L
1
50
Cobalt (Co)
48.5
48.5
ug/L
1
50
Copper (Cu)
48.5
48.5
ug/L
1
50
Lead (Pb) Low Level
50
50
ug/L
1
50
Molybdenum (Mo)
55.5
55.5
ug/L
1
50
Nickel (Ni)
48.8
48.8
ug/L
1
50
Selenium (Se)
47.6
47.6
ug/L
1
50
Silver (Ag) Low Level
50.3
50.3
ug/L
1
50
Thallium (TI) Low Level
49.2
49.2
ug/L
1
50
Vanadium (V) Low Level
52.5
52.5
ug/L
1
50
Page 17 of 60
Parent Sample: J20050060 -- 2020012089
% Recovery
LCL
UCL Qualifier
100
70
130
102
70
130
103
70
130
98.9
70
130
97.7
70
130
103
70
130
99.2
70
130
103
70
130
Parent Sample: J20050060 -- 2020012089
% Recovery
LCL
UCL
RPD Qualifier
99.3
70
130
3.31
97.7
70
130
2.74
94
70
130
3.76
99
70
130
1.99
101
70
130
1.74
96.9
70
130
3.46
97.1
70
130
3.24
99.9
70
130
1.87
101
70
130
2.55
97
70
130
1.93
95.3
70
130
2.45
101
70
130
2.32
98.2
70
130
1.01
101
70
130
1.99

Certificate of Laboratory Analysis Page 18 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050258 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Antimony (Sb)
-0.038
-0.038
ug/L
1
1
< 1/2 RDL
Arsenic (As)
-0.006
-0.006
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
-0.003
-0.003
ug/L
1
1
< 1/2 RDL
Cadmium (Cd) Low Level
-0.003
-0.003
ug/L
1
0.1
< 1/2 RDL
Chromium (Cr)
0.022
0.022
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.002
0.002
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.357
-0.357
ug/L
1
1
< 1/2 RDL
Lead (Pb) Low Level
-0.001
-0.001
ug/L
1
0.2
< 1/2 RDL
Molybdenum (Mo)
-0.014
-0.014
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.014
-0.014
ug/L
1
1
< 1/2 RDL
Selenium (Se)
-0.251
-0.251
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
0.018
0.018
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.031
0.031
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
49.9
49.9
ug/L
1
50
99.9
85
115
Arsenic (As)
52.1
52.1
ug/L
1
50
104
85
115
Beryllium (Be)
49.4
49.4
ug/L
1
50
98.9
85
115
Cadmium (Cd) Low Level
50.3
50.3
ug/L
1
50
101
85
115
Chromium (Cr)
51.2
51.2
ug/L
1
50
102
85
115
Cobalt (Co)
52
52
ug/L
1
50
104
85
115
Copper(Cu)
52
52
ug/L
1
50
104
85
115
Lead (Pb) Low Level
49.5
49.5
ug/L
1
50
99.1
85
115
Molybdenum (Mo)
51.7
51.7
ug/L
1
50
103
85
115
Nickel (Ni)
51.6
51.6
ug/L
1
50
103
85
115
Selenium (Se)
48.9
48.9
ug/L
1
50
97.8
85
115
Silver (Ag) Low Level
50.5
50.5
ug/L
1
50
101
85
115
Thallium (TI) Low Level
47.5
47.5
ug/L
1
50
95
85
115
Vanadium (V) Low Level
50
50
ug/L
1
50
99.9
85
115
MS # 1
Parent Sample:
J20050109 -- 2020012276
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)
66.1
66.1
ug/L
1
50
104
70
130
Beryllium (Be)
49.9
49.9
ug/L
1
50
99.7
70
130
Cadmium (Cd) Low Level
49.9
49.9
ug/L
1
50
99.7
70
130
Chromium (Cr)
50.8
50.8
ug/L
1
50
101
70
130
Cobalt (Co)
51.6
51.6
ug/L
1
50
103
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050258 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Copper (Cu)
50.7
50.7
ug/L
1
50
Lead (Pb) Low Level
50.9
50.9
ug/L
1
50
Molybdenum (Mo)
54.3
54.3
ug/L
1
50
Nickel (Ni)
51.2
51.2
ug/L
1
50
Selenium (Se)
35.7
35.7
ug/L
1
50
Silver (Ag) Low Level
49.5
49.5
ug/L
1
50
Thallium (TI) Low Level
48.4
48.4
ug/L
1
50
Vanadium (V) Low Level
51.7
51.7
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
52
52
ug/L
1
50
Arsenic (As)
66.9
66.9
ug/L
1
50
Beryllium (Be)
50.9
50.9
ug/L
1
50
Cadmium (Cd) Low Level
50.7
50.7
ug/L
1
50
Chromium (Cr)
51.8
51.8
ug/L
1
50
Cobalt (Co)
51.9
51.9
ug/L
1
50
Copper (Cu)
51.1
51.1
ug/L
1
50
Lead (Pb) Low Level
51.8
51.8
ug/L
1
50
Molybdenum (Mo)
54.9
54.9
ug/L
1
50
Nickel (Ni)
51.2
51.2
ug/L
1
50
Selenium (Se)
36.1
36.1
ug/L
1
50
Silver (Ag) Low Level
49.8
49.8
ug/L
1
50
Thallium (TI) Low Level
47.9
47.9
ug/L
1
50
Vanadium (V) Low Level
52.4
52.4
ug/L
1
50
Page 19 of 60
Parent Sample: J20050109 -- 2020012276
% Recovery
LCL
UCL Qualifier
102
70
130
102
70
130
106
70
130
102
70
130
71.8
70
130
99
70
130
96.6
70
130
103
70
130
Parent Sample: J20050109 -- 2020012276
% Recovery
LCL
UCL
RPD Qualifier
104
70
130
2.2
106
70
130
1.46
102
70
130
2.15
101
70
130
1.71
103
70
130
1.87
104
70
130
0.66
103
70
130
0.671
104
70
130
1.68
107
70
130
1.15
102
70
130
0.166
72.8
70
130
1.27
99.6
70
130
0.608
95.8
70
130
0.898
105
70
130
1.47

Certificate of Laboratory Analysis Page 20 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050155 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter Measured Final
TDS 6
Blank # 2
Parameter Measured Final
TDS 10
Duplicate # 1
Parameter Measured Final
TDS 631
Duplicate # 2
Parameter Measured Final
TDS 429
Duplicate # 3
Parameter Measured Final
TDS 74
LCS # 1
Parameter Measured Final
TDS 1010
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
25
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
25
< 1/2 RDL
Parent Sample:
J20040147 -- 2020009246
Units:
Dil
Limit Range
RPD
Qualifier
mg/L
1
0 - 10%
0.946
-
Parent Sample:
J20040161 -- 2020009295
Units:
Dil
Limit Range
RPD
Qualifier
mg/L
1
0 - 10%
0.937
-
Parent Sample:
J20040388 -- 2020010405
Units:
Dil
Limit Range
RPD
Qualifier
mg/L
1
0 - 10%
1.36
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
1000
101 90
110

Certificate of Laboratory Analysis Page 21 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050188 Total Carbon Total Carbon
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.02
0.02
mg/L
1
0.1
< 1/2 RDL
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.068
0.068
mg/L
1
0.1
> 1/2 RDL
B2
Blank # 3
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.041
0.041
mg/L
1
0.1
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.81
2.81
mg/L
1
2.71
104 85
115
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.82
2.82
mg/L
1
2.71
104 85
115
LCS # 3
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.82
2.82
mg/L
1
2.71
104 85
115
MS # 1
Parent Sample:
J20050103 -- 2020012228
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
3.81
3.81
mg/L
1
2
104 80
120
MSD # 1
Parent Sample:
J20050103 -- 2020012228
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL RPD
Qualifier
TOC
3.61
3.61
mg/L
1
2
94.3 80
120 9.88
Qualifiers:
B2 Target
analyte was detected in Method/Prep Blank(s) at a concentration greater than
'/2 the reporting limit
but
less
than the reporting limit.
Analyte concentration
in sample is valid and may be used for compliance
purposes.

Certificate of Laboratory Analysis Page 22 of 60
This report shall not be reproduced, except in full.
Order # J20050103
Level II QC Summary
Q20050148 TSS TOTAL SUSPENDED SOLIDS
Blank # 1
Parameter Measured Final
TSS 0
Blank # 2
Parameter Measured Final
TSS 0
Duplicate # 1
Parameter Measured Final
TSS 19.6
Duplicate # 2
Parameter Measured Final
TSS 0.8
Duplicate # 3
Parameter Measured Final
TSS 7.2
Duplicate # 4
Parameter Measured Final
TSS 0.6
LCS # 1
Parameter Measured Final
TSS 48.8
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
5
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
5
< 1/2 RDL
Parent Sample:
J20050109 -- 2020012275
Units:
Dil
Limit Range RPD Qualifier
mg/L
1
0 - 10% 3.02
Parent Sample:
J20050109 -- 2020012276
Units:
Dil
Limit Range RPD Qualifier
mg/L
1
0 - 10% 0
Parent Sample:
J20050109 -- 2020012277
Units:
Dil
Limit Range RPD Qualifier
mg/L
1
0 - 10% 2.82
Parent Sample:
J20050109 -- 2020012279
Units:
Dil
Limit Range RPD Qualifier
mg/L
1
0 - 10% 40 R
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
mg/L
1
50
97.6 90
110
Qualifiers:
R % RPD indeterminate due to low concentration in the parent sample.

leAnalyiical
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[phone]
May 13, 2020
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg.7405 MG30A2
Huntersville, NC 28078
RE: Project: J20050103
Pace Project No.: 92476714
Dear Program Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on May 07, 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,
Kevin Herring
[e-mail]
1(704)875-9092
HORIZON Database Administrator
Enclosures
cc: Program Manager, Duke Energy
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 36

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Project: J20050103
Pace Project No.: 92476714
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 36

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[phone]
Project: J20050103
Pace Project No.: 92476714
Lab ID Sample ID
SAMPLE SUMMARY
Matrix Date Collected Date Received
92476714001 2020012228 Water 05/07/20 08:00 05/07/20 14:33
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 36

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SAMPLE ANALYTE COUNT
Project: J20050103
Pace Project No.: 92476714
Analytes
Lab ID Sample ID
Method
Analysts
Reported
Laboratory
92476714001 2020012228
EPA 8082A
SEM
8
PASI-C
EPA 8270E
PKS
74
PASI-C
EPA 8260D
CL
63
PASI-C
Colisure
KDF
2
PASI-C
SM 4500-S2D-2011
LMS1
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 36

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SUMMARY OF DETECTION
Project: J20050103
Pace Project No.: 92476714
Lab Sample ID
Client Sample ID
Method
Parameters
Result
92476714001
2020012228
Colisure
Fecal/E. coli
PRESENT
Colisure
Total Coliforms
PRESENT
EPA 218.7 Rev 1.0 2011
Chromium, Hexavalent
0.043
Units Report Limit Analyzed
1.0 05/08/2016:41
1.0 05/08/2016:41
ug/L 0.025 05/12/2016:16
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 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 8082A
Description: 8082 GCS PCB RVE
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was analyzed for EPA 8082A 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.
Sample Preparation:
The samples were prepared in accordance with EPA 3510C 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.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 6 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 8270E
Description: 8270E RVE
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was analyzed for EPA 8270E 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.
Sample Preparation:
The samples were prepared in accordance with EPA 3510C 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.
QC Batch: 540748
v1: The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated
samples may have a high bias.
•2020012228 (Lab ID:92476714001)
• 2,2'-Oxybis(1-chloropropane)
• Butylbenzylphthalate
• Di-n-octylphthalate
• bis(2- Ethyl hexyl)phthalate
• BLANK (Lab ID: 2882098)
• 2,2'-Oxybis(1-chloropropane)
• Butylbenzylphthalate
• Di-n-octylphthalate
• bis(2- Ethyl hexyl)phthalate
• LCS (Lab ID: 2882099)
• 2,2'-Oxybis(1-chloropropane)
• Butylbenzylphthalate
• Di-n-octylphthalate
• bis(2- Ethyl hexyl)phthalate
• MS (Lab ID: 2882100)
• 2,2'-Oxybis(1-chloropropane)
• Butylbenzylphthalate
• Di-n-octylphthalate
• bis(2- Ethyl hexyl)phthalate
• MSD (Lab ID: 2882101)
• 2,2'-Oxybis(1-chloropropane)
• Butylbenzylphthalate
• Di-n-octylphthalate
• bis(2- Ethyl hexyl)phthalate
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 7 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 8270E
Description: 8270E RVE
Client: Duke Energy
Date: May 13, 2020
Internal Standards:
All internal standards were within QC limits 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.
QC Batch: 540748
L1: Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated samples
may be biased high.
• LCS (Lab ID: 2882099)
• 3&4-Methyl phenol (m&p Cresol)
• Di-n-octylphthalate
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 540748
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92471460011
MO: Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.
• MS (Lab ID: 2882100)
• 3&4-Methyl phenol (m&p Cresol)
• MSD (Lab ID: 2882101)
• Di-n-octylphthalate
R1: RPD value was outside control limits.
• MSD (Lab ID: 2882101)
• 3,3'-Dichlorobenzidine
• 4-Chloroaniline
• Aniline
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 8 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 8260D
Description: 8260D MSV Low Level
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was analyzed for EPA 8260D 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.
QC Batch: 540891
v1: The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated
samples may have a high bias.
•2020012228 (Lab ID:92476714001)
• 1,2-Dichlorobenzene
• Acetone
• Hexachloro-1,3-butadiene
• Vinyl acetate
• p-Isopropyltoluene
• BLANK (Lab ID: 2882855)
• 1,2-Dichlorobenzene
• Acetone
• Hexachloro-1,3-butadiene
• Vinyl acetate
• p-Isopropyltoluene
• LCS (Lab ID: 2882856)
• 1,2-Dichlorobenzene
• Acetone
• Hexachloro-1,3-butadiene
• Vinyl acetate
• p-Isopropyltoluene
• MS (Lab ID: 2882857)
• Acetone
• MSD (Lab ID: 2882858)
• Acetone
Internal Standards:
All internal standards were within QC limits with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 9 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 8260D
Description: 8260D MSV Low Level
Client: Duke Energy
Date: May 13, 2020
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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without the written consent of Pace Analytical Services, LLC. Page 10 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: Colisure
Description: Total Coliform (P/A) CHT
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was analyzed for Colisure 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.
Sample Preparation:
The samples were prepared in accordance with Colisure 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.
Internal Standards:
All internal standards were within QC limits 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.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 11 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: SM 4500-S2D-2011
Description: 4500S2D Sulfide Water
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was 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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without the written consent of Pace Analytical Services, LLC. Page 12 of 36

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PROJECT NARRATIVE
Project: J20050103
Pace Project No.: 92476714
Method: EPA 218.7 Rev 1.0 2011
Description: 218.7 Chromium, Hexavalent
Client: Duke Energy
Date: May 13, 2020
General Information:
1 sample was 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.
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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without the written consent of Pace Analytical Services, LLC. Page 13 of 36

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ANALYTICAL RESULTS
Project: J20050103
Pace Project No.: 92476714
Sample: 2020012228 Lab ID: 92476714001 Collected: 05/07/20 08:00 Received: 05/07/20 14:33 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
8082 GCS PCB RVE
Analytical Method: EPA 8082A Preparation Method: EPA 3510C
Pace Analytical
Services - Charlotte
PCB-1016 (Aroclor 1016)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
12674-11-2
PCB-1221 (Aroclor 1221)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
11104-28-2
PCB-1232 (Aroclor 1232)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
11141-16-5
PCB-1242 (Aroclor 1242)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
53469-21-9
PCB-1248 (Aroclor 1248)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
12672-29-6
PCB-1254 (Aroclor 1254)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
11097-69-1
PCB-1260 (Aroclor 1260)
ND
ug/L
0.50
1
05/12/20 13:40
05/13/20 06:40
11096-82-5
Surrogates
Decachlorobiphenyl (S)
115
%
10-130
1
05/12/20 13:40
05/13/20 06:40
2051-24-3
8270E RVE
Analytical Method:
EPA 8270E Preparation Method: EPA 3510C
Pace Analytical
Services - Charlotte
Acenaphthene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
83-32-9
Acenaphthylene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
208-96-8
Aniline
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
62-53-3
Anthracene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
120-12-7
Benzo(a)anthracene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
56-55-3
Benzo(a)pyrene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
50-32-8
Benzo(b)fluoranthene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
191-24-2
Benzo(k)fluoranthene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
207-08-9
Benzoic Acid
ND
ug/L
50.0
1
05/11/20 13:46
05/11/20 21:57
65-85-0
Benzyl alcohol
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
100-51-6
4-Bromophenylphenyl ether
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
101-55-3
Butylbenzylphthalate
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
85-68-7 v1
4-Chloro-3-methyl phenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
59-50-7
4-Chloroaniline
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
106-47-8
bis(2-Chloroethoxy)methane
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
111-91-1
bis(2-Chloroethyl) ether
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
111-44-4
2-Chloronaphthalene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
91-58-7
2-Chlorophenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
95-57-8
4-Chlorophenylphenyl ether
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
7005-72-3
Chrysene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
53-70-3
Dibenzofuran
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
132-64-9
1,2-Dichlorobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
95-50-1
1,3-Dichlorobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
541-73-1
1,4-Dichlorobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
106-46-7
3,3'-Dichlorobenzidine
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
91-94-1
2,4-Dichlorophenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
120-83-2
Diethylphthalate
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
84-66-2
2,4-Dimethylphenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
105-67-9
Dimethylphthalate
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
131-11-3
Di-n-butylphthalate
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
84-74-2
4,6-Dinitro-2-methyl phenol
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
534-52-1
2,4-Dinitrophenol
ND
ug/L
50.0
1
05/11/20 13:46
05/11/20 21:57
51-28-5
REPORT OF LABORATORY ANALYSIS
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Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 14 of 36

leAnalyiical
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ANALYTICAL RESULTS
Project: J20050103
Pace Project No.: 92476714
Sample: 2020012228 Lab ID: 92476714001 Collected: 05/07/20 08:00 Received: 05/07/20 14:33 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
8270E RVE
Analytical Method: EPA 8270E Preparation Method: EPA 3510C
Pace Analytical
Services - Charlotte
2,4-Dinitrotoluene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
121-14-2
2,6-Dinitrotoluene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
606-20-2
Di-n-octylphthalate
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
117-84-0
L1,v1
bis(2- Ethyl hexyl)phthalate
ND
ug/L
6.0
1
05/11/20 13:46
05/11/20 21:57
117-81-7
v1
Fluoranthene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
206-44-0
Fluorene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
86-73-7
Hexachloro-1,3-butadiene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
87-68-3
Hexachlorobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
118-74-1
Hexachlorocyclopentadiene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
77-47-4
Hexachloroethane
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
67-72-1
Indeno(1,2,3-cd)pyrene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
193-39-5
Isophorone
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
78-59-1
1-Methylnaphthalene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
90-12-0
2-Methylnaphthalene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
91-57-6
2-Methylphenol(o-Cresol)
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
95-48-7
3&4-Methyl phenol (m&p Cresol)
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
15831-10-4
L1
Naphthalene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
91-20-3
2-Nitroaniline
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
88-74-4
3-Nitroaniline
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
99-09-2
4-Nitroaniline
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
100-01-6
Nitrobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
98-95-3
2-Nitrophenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
88-75-5
4-Nitrophenol
ND
ug/L
50.0
1
05/11/20 13:46
05/11/20 21:57
100-02-7
N-Nitrosodimethylamine
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
62-75-9
N-Nitroso-di-n-propylamine
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
621-64-7
N-Nitrosodiphenylamine
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
86-30-6
2,2'-Oxybis(1-chloropropane)
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
108-60-1
v1
Pentachlorophenol
ND
ug/L
20.0
1
05/11/20 13:46
05/11/20 21:57
87-86-5
Phenanthrene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
85-01-8
Phenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
108-95-2
Pyrene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
129-00-0
1,2,4-Trichlorobenzene
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
120-82-1
2,4,5-Trichlorophenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
95-95-4
2,4,6-Trichlorophenol
ND
ug/L
10.0
1
05/11/20 13:46
05/11/20 21:57
88-06-2
Surrogates
Nitrobenzene-d5 (S)
47
%
13-130
1
05/11/20 13:46
05/11/20 21:57
4165-60-0
2-Fluorobiphenyl (S)
30
%
13-130
1
05/11/20 13:46
05/11/20 21:57
321-60-8
Terphenyl-d14 (S)
97
%
25-130
1
05/11/20 13:46
05/11/20 21:57
1718-51-0
Phenol-d6 (S)
35
%
10-130
1
05/11/20 13:46
05/11/20 21:57
13127-88-3
2-Fluorophenol (S)
44
%
10-130
1
05/11/20 13:46
05/11/20 21:57
367-12-4
2,4,6-Tribromophenol (S)
66
%
10-137
1
05/11/20 13:46
05/11/20 21:57
118-79-6
8260D MSV Low Level
Analytical Method:
EPA 8260D
Pace Analytical
Services - Charlotte
Acetone
ND
ug/L
25.0
1
05/12/20 00:19
67-64-1
v1
Benzene
ND
ug/L
1.0
1
05/12/20 00:19
71-43-2
REPORT OF LABORATORY ANALYSIS
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Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 15 of 36

leAnalyiical
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Pace Analytical Services, LLC
og8� 6fbode. Suite 100
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ANALYTICAL RESULTS
Project: J20050103
Pace Project No.: 92476714
Sample: 2020012228
Lab ID: 92476714001 Collected:
05/07/20
08:00
Received: 05/07/20 14:33 Matrix: Water
Parameters
Results
Units Report Limit
DF
Prepared Analyzed
CAS No.
Qual
8260D MSV Low Level
Analytical Method:
EPA 8260D
Pace Analytical
Services - Charlotte
Bromobenzene
ND
ug/L
1.0
1
05/12/20 00:19
108-86-1
Bromochloromethane
ND
ug/L
1.0
1
05/12/20 00:19
74-97-5
Bromodichloromethane
ND
ug/L
1.0
1
05/12/20 00:19
75-27-4
Bromoform
ND
ug/L
1.0
1
05/12/20 00:19
75-25-2
Bromomethane
ND
ug/L
2.0
1
05/12/20 00:19
74-83-9
IH
2-Butanone (MEK)
ND
ug/L
5.0
1
05/12/20 00:19
78-93-3
Carbon tetrachloride
ND
ug/L
1.0
1
05/12/20 00:19
56-23-5
Chlorobenzene
ND
ug/L
1.0
1
05/12/20 00:19
108-90-7
Chloroethane
ND
ug/L
1.0
1
05/12/20 00:19
75-00-3
Chloroform
ND
ug/L
5.0
1
05/12/20 00:19
67-66-3
Chloromethane
ND
ug/L
1.0
1
05/12/20 00:19
74-87-3
2-Chlorotoluene
ND
ug/L
1.0
1
05/12/20 00:19
95-49-8
4-Chlorotoluene
ND
ug/L
1.0
1
05/12/20 00:19
106-43-4
1,2-Dibromo-3-chloropropane
ND
ug/L
5.0
1
05/12/20 00:19
96-12-8
Dibromochloromethane
ND
ug/L
1.0
1
05/12/20 00:19
124-48-1
1,2-Dibromoethane (EDB)
ND
ug/L
1.0
1
05/12/20 00:19
106-93-4
Dibromomethane
ND
ug/L
1.0
1
05/12/20 00:19
74-95-3
1,2-Dichlorobenzene
ND
ug/L
1.0
1
05/12/20 00:19
95-50-1
v1
1,3-Dichlorobenzene
ND
ug/L
1.0
1
05/12/20 00:19
541-73-1
1,4-Dichlorobenzene
ND
ug/L
1.0
1
05/12/20 00:19
106-46-7
Dichlorodifluoromethane
ND
ug/L
1.0
1
05/12/20 00:19
75-71-8
1,1-Dichloroethane
ND
ug/L
1.0
1
05/12/20 00:19
75-34-3
1,2-Dichloroethane
ND
ug/L
1.0
1
05/12/20 00:19
107-06-2
1,1-Dichloroethene
ND
ug/L
1.0
1
05/12/20 00:19
75-35-4
cis-1,2-Dichloroethene
ND
ug/L
1.0
1
05/12/20 00:19
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
1
05/12/20 00:19
156-60-5
1,2-Dichloropropane
ND
ug/L
1.0
1
05/12/20 00:19
78-87-5
1,3-Dichloropropane
ND
ug/L
1.0
1
05/12/20 00:19
142-28-9
2,2-Dichloropropane
ND
ug/L
1.0
1
05/12/20 00:19
594-20-7
1,1-Dichloropropene
ND
ug/L
1.0
1
05/12/20 00:19
563-58-6
cis-1,3-Dichloropropene
ND
ug/L
1.0
1
05/12/20 00:19
10061-01-5
trans- 1,3-Dichloropropene
ND
ug/L
1.0
1
05/12/20 00:19
10061-02-6
Diisopropyl ether
ND
ug/L
1.0
1
05/12/20 00:19
108-20-3
Ethylbenzene
ND
ug/L
1.0
1
05/12/20 00:19
100-41-4
Hexachloro-1,3-butadiene
ND
ug/L
1.0
1
05/12/20 00:19
87-68-3
v1
2-Hexanone
ND
ug/L
5.0
1
05/12/20 00:19
591-78-6
p-Isopropyltoluene
ND
ug/L
1.0
1
05/12/20 00:19
99-87-6
v1
Methylene Chloride
ND
ug/L
5.0
1
05/12/20 00:19
75-09-2
4-Methyl-2-pentanone (MIBK)
ND
ug/L
5.0
1
05/12/20 00:19
108-10-1
Methyl-tert-butyl ether
ND
ug/L
1.0
1
05/12/20 00:19
1634-04-4
Naphthalene
ND
ug/L
1.0
1
05/12/20 00:19
91-20-3
Styrene
ND
ug/L
1.0
1
05/12/20 00:19
100-42-5
1,1,1,2-Tetrachloroethane
ND
ug/L
1.0
1
05/12/20 00:19
630-20-6
1,1,2,2-Tetrachloroethane
ND
ug/L
1.0
1
05/12/20 00:19
79-34-5
Tetrachloroethene
ND
ug/L
1.0
1
05/12/20 00:19
127-18-4
Toluene
ND
ug/L
1.0
1
05/12/20 00:19
108-88-3
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 16 of 36

leAnalyiical
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Pace Analytical Services, LLC
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[phone]
ANALYTICAL RESULTS
Project: J20050103
Pace Project No.: 92476714
Sample: 2020012228 Lab ID: 92476714001 Collected: 05/07/20 08:00 Received: 05/07/20 14:33 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
8260D MSV Low Level
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethene
Trichlorofluoromethane
1,2,3-Trichloropropane
Vinyl acetate
Vinyl chloride
Xylene (Total)
m&p-Xylene
o-Xylene
Surrogates
4-Bromofluorobenzene (S)
1,2-Dichloroethane-d4 (S)
Toluene-d8 (S)
Total Coliform (P/A) CHT
Fecal/E. coli
Total Coliforms
4500S2D Sulfide Water
Sulfide
218.7 Chromium, Hexavalent
Chromium, Hexavalent
Date: 05/13/2020 02:49 PM
Analytical Method: EPA 8260D
Pace Analytical Services - Charlotte
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
2.0
1
ND ug/L
1.0
1
ND ug/L
1.0
1
ND ug/L
2.0
1
ND ug/L
1.0
1
103 %
70-130
1
107 %
70-130
1
97 %
70-130
1
Analytical Method: Colisure Preparation
Method: Colisure
Pace Analytical Services - Charlotte
05/12/20 00:19
87-61-6
05/12/20 00:19
120-82-1
05/12/20 00:19
71-55-6
05/12/20 00:19
79-00-5
05/12/20 00:19
79-01-6
05/12/20 00:19
75-69-4
05/12/20 00:19
96-18-4
05/12/20 00:19
108-05-4 v1
05/12/20 00:19
75-01-4
05/12/20 00:19
1330-20-7
05/12/20 00:19
179601-23-1
05/12/20 00:19
95-47-6
05/12/20 00:19 460-00-4
05/12/20 00:19 17060-07-0
05/12/20 00:19 2037-26-5
PRESENT 1.0 1 05/07/2016:38 05/08/2016:41
PRESENT 1.0 1 05/07/2016:38 05/08/2016:41
Analytical Method: SM 4500-S2D-2011
Pace Analytical Services -Asheville
ND mg/L 0.10 1
Analytical Method: EPA 218.7 Rev 1.0 2011
Pace Analytical Services -Asheville
0.043 ug/L 0.025 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
05/11/20 23:15 18496-25-8
05/12/20 16:16 18540-29-9
Page 17 of 36

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QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
QC Batch: 540891 Analysis Method: EPA 8260D
QC Batch Method: EPA 8260D Analysis Description: 8260D MSV Low Level
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92476714001
METHOD BLANK: 2882855
Associated Lab Samples: 92476714001
Parameter
Units
Matrix:
Blank
Result
Water
Reporting
Limit
Analyzed
1,1,1,2-Tetrachloroethane
ug/L
ND
1.0
05/11/20 21:48
1,1,1-Trichloroethane
ug/L
ND
1.0
05/11/20 21:48
1,1,2,2-Tetrachloroethane
ug/L
ND
1.0
05/11/20 21:48
1,1,2-Trichloroethane
ug/L
ND
1.0
05/11/20 21:48
1,1-Dichloroethane
ug/L
ND
1.0
05/11/20 21:48
1,1-Dichloroethene
ug/L
ND
1.0
05/11/20 21:48
1,1-Dichloropropene
ug/L
ND
1.0
05/11/20 21:48
1,2,3-Trichlorobenzene
ug/L
ND
1.0
05/11/20 21:48
1,2,3-Trichloropropane
ug/L
ND
1.0
05/11/20 21:48
1,2,4-Trichlorobenzene
ug/L
ND
1.0
05/11/20 21:48
1,2-Dibromo-3-chloropropane
ug/L
ND
5.0
05/11/20 21:48
1,2-Dibromoethane (EDB)
ug/L
ND
1.0
05/11/20 21:48
1,2-Dichlorobenzene
ug/L
ND
1.0
05/11/20 21:48
1,2-Dichloroethane
ug/L
ND
1.0
05/11/20 21:48
1,2-Dichloropropane
ug/L
ND
1.0
05/11/20 21:48
1,3-Dichlorobenzene
ug/L
ND
1.0
05/11/20 21:48
1,3-Dichloropropane
ug/L
ND
1.0
05/11/20 21:48
1,4-Dichlorobenzene
ug/L
ND
1.0
05/11/20 21:48
2,2-Dichloropropane
ug/L
ND
1.0
05/11/20 21:48
2-Butanone (MEK)
ug/L
ND
5.0
05/11/20 21:48
2-Chlorotoluene
ug/L
ND
1.0
05/11/20 21:48
2-Hexanone
ug/L
ND
5.0
05/11/20 21:48
4-Chlorotoluene
ug/L
ND
1.0
05/11/20 21:48
4-Methyl-2-pentanone (MIBK)
ug/L
ND
5.0
05/11/20 21:48
Acetone
ug/L
ND
25.0
05/11/20 21:48
Benzene
ug/L
ND
1.0
05/11/20 21:48
Bromobenzene
ug/L
ND
1.0
05/11/20 21:48
Bromochloromethane
ug/L
ND
1.0
05/11/20 21:48
Bromodichloromethane
ug/L
ND
1.0
05/11/20 21:48
Bromoform
ug/L
ND
1.0
05/11/20 21:48
Bromomethane
ug/L
ND
2.0
05/11/20 21:48
Carbon tetrachloride
ug/L
ND
1.0
05/11/20 21:48
Chlorobenzene
ug/L
ND
1.0
05/11/20 21:48
Chloroethane
ug/L
ND
1.0
05/11/20 21:48
Chloroform
ug/L
ND
5.0
05/11/20 21:48
Chloromethane
ug/L
ND
1.0
05/11/20 21:48
cis-1,2-Dichloroethene
ug/L
ND
1.0
05/11/20 21:48
cis-1,3-Dichloropropene
ug/L
ND
1.0
05/11/20 21:48
Dibromochloromethane
ug/L
ND
1.0
05/11/20 21:48
Dibromomethane
ug/L
ND
1.0
05/11/20 21:48
v1
v1
IH
Qualifiers
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 18 of 36

leAnalyiical
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QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
METHOD BLANK: 2882855
Matrix:
Water
Associated Lab Samples: 92476714001
Blank
Reporting
Parameter
Units
Result
Limit
Analyzed
Qualifiers
Dichlorodifluoromethane
ug/L
ND
1.0
05/11/20 21:48
Diisopropyl ether
ug/L
ND
1.0
05/11/20 21:48
Ethylbenzene
ug/L
ND
1.0
05/11/20 21:48
Hexachloro-1,3-butadiene
ug/L
ND
1.0
05/11/20 21:48
IH,v1
m&p-Xylene
ug/L
ND
2.0
05/11/20 21:48
Methyl-tert-butyl ether
ug/L
ND
1.0
05/11/20 21:48
Methylene Chloride
ug/L
ND
5.0
05/11/20 21:48
Naphthalene
ug/L
ND
1.0
05/11/20 21:48
o-Xylene
ug/L
ND
1.0
05/11/20 21:48
p-Isopropyltoluene
ug/L
ND
1.0
05/11/20 21:48
v1
Styrene
ug/L
ND
1.0
05/11/20 21:48
Tetrachloroethene
ug/L
ND
1.0
05/11/20 21:48
Toluene
ug/L
ND
1.0
05/11/20 21:48
trans-1,2-Dichloroethene
ug/L
ND
1.0
05/11/20 21:48
trans- 1,3-Dichloropropene
ug/L
ND
1.0
05/11/20 21:48
Trichloroethene
ug/L
ND
1.0
05/11/20 21:48
Trichlorofluoromethane
ug/L
ND
1.0
05/11/20 21:48
Vinyl acetate
ug/L
ND
2.0
05/11/20 21:48
v1
Vinyl chloride
ug/L
ND
1.0
05/11/20 21:48
Xylene (Total)
ug/L
ND
1.0
05/11/20 21:48
1,2-Dichloroethane-d4 (S)
%
105
70-130
05/11/20 21:48
4-Bromofluorobenzene (S)
%
100
70-130
05/11/20 21:48
Toluene-d8 (S)
%
98
70-130
05/11/20 21:48
LABORATORY CONTROL SAMPLE: 2882856
Spike
LCS
LCS %
Rec
Parameter
Units
Conc.
Result
% Rec Limits
Qualifiers
1,1,1,2-Tetrachloroethane
ug/L
50
55.1
110
70-130
1,1,1-Trichloroethane
ug/L
50
46.1
92
70-130
1,1,2,2-Tetrachloroethane
ug/L
50
56.5
113
70-130
1,1,2-Trichloroethane
ug/L
50
48.3
97
70-130
1,1-Dichloroethane
ug/L
50
49.3
99
70-130
1,1-Dichloroethene
ug/L
50
51.5
103
70-130
1,1-Dichloropropene
ug/L
50
48.8
98
70-130
1,2,3-Trichlorobenzene
ug/L
50
58.9
118
70-130
1,2,3-Trichloropropane
ug/L
50
53.8
108
70-130
1,2,4-Trichlorobenzene
ug/L
50
58.1
116
70-130
1,2-Dibromo-3-chloropropane
ug/L
50
50.2
100
70-130
1,2-Dibromoethane (EDB)
ug/L
50
56.1
112
70-130
1,2-Dichlorobenzene
ug/L
50
59.6
119
70-130 v1
1,2-Dichloroethane
ug/L
50
49.4
99
70-130
1,2-Dichloropropane
ug/L
50
52.5
105
70-130
1,3-Dichlorobenzene
ug/L
50
58.2
116
70-130
1,3-Dichloropropane
ug/L
50
58.7
117
70-131
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: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 19 of 36

leAnalyiical
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Pace Analytical Services, LLC
og8�wnfbode. Suite 100
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[phone]
Project: J20050103
Pace Project No.: 92476714
LABORATORY CONTROL SAMPLE: 2882856
Parameter
QUALITY CONTROL DATA
Spike LCS LCS % Rec
Units Conc. Result % Rec Limits Qualifiers
1,4-Dichlorobenzene
ug/L
50
56.9
114
70-130
2,2-Dichloropropane
ug/L
50
44.5
89
69-130
2-Butanone (MEK)
ug/L
100
104
104
64-135
2-Chlorotoluene
ug/L
50
55.5
111
70-130
2-Hexanone
ug/L
100
118
118
66-135
4-Chlorotoluene
ug/L
50
56.4
113
70-130
4-Methyl-2-pentanone (MIBK)
ug/L
100
109
109
70-130
Acetone
ug/L
100
117
117
61-157 v1
Benzene
ug/L
50
52.8
106
70-130
Bromobenzene
ug/L
50
58.2
116
70-130
Bromochloromethane
ug/L
50
43.9
88
70-130
Bromodichloromethane
ug/L
50
49.1
98
70-130
Bromoform
ug/L
50
49.3
99
70-130
Bromomethane
ug/L
50
52.7
105
38-1301H
Carbon tetrachloride
ug/L
50
51.0
102
70-130
Chlorobenzene
ug/L
50
55.4
111
70-130
Chloroethane
ug/L
50
40.0
80
37-142
Chloroform
ug/L
50
47.9
96
70-130
Chloromethane
ug/L
50
43.4
87
48-130
cis-1,2-Dichloroethene
ug/L
50
48.6
97
70-130
cis-1,3-Dichloropropene
ug/L
50
51.4
103
70-130
Dibromochloromethane
ug/L
50
52.5
105
70-130
Dibromomethane
ug/L
50
50.4
101
70-130
Dichlorodifluoromethane
ug/L
50
39.9
80
53-134
Diisopropyl ether
ug/L
50
51.5
103
70-135
Ethylbenzene
ug/L
50
54.1
108
70-130
Hexachloro-1,3-butadiene
ug/L
50
60.4
121
68-132 IH,v1
m&p-Xylene
ug/L
100
108
108
70-130
Methyl-tert-butyl ether
ug/L
50
49.2
98
70-130
Methylene Chloride
ug/L
50
54.0
108
67-132
Naphthalene
ug/L
50
58.1
116
70-130
o-Xylene
ug/L
50
55.5
111
70-131
p-Isopropyltoluene
ug/L
50
58.5
117
70-130 v1
Styrene
ug/L
50
58.2
116
70-130
Tetrachloroethene
ug/L
50
54.1
108
69-130
Toluene
ug/L
50
49.6
99
70-130
trans-1,2-Dichloroethene
ug/L
50
51.5
103
70-130
trans- 1,3-Dichloropropene
ug/L
50
49.2
98
70-130
Trichloroethene
ug/L
50
52.2
104
70-130
Trichlorofluoromethane
ug/L
50
42.0
84
63-130
Vinyl acetate
ug/L
100
120
120
55-143 v1
Vinyl chloride
ug/L
50
48.9
98
70-131
Xylene (Total)
ug/L
150
164
109
70-130
1,2-Dichloroethane-d4 (S)
%
101
70-130
4-Bromofluorobenzene (S)
%
100
70-130
Toluene-d8 (S)
%
100
70-130
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 20 of 36

leAnalyiical
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Pace Analytical Services, LLC
og8� ,6fbode. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882857
MS
92475939008 Spike
Parameter Units Result Conc.
1,1,1,2-Tetrachloroethane
1,1,1-Trichloroethane
1,1, 2,2-Tetrachloroethane
1,1, 2-Trichloroethane
1,1-Dichloroethane
1,1-Dichloroethene
1,1-Dichloropropene
1,2,3-Trichlorobenzene
1,2,3-Trichloropropane
1,2,4-Trichlorobenzene
1,2-Dibromo-3-
chloropropane
1,2-Dibromoethane (EDB)
1,2-Dichlorobenzene
1,2-Dichloroethane
1,2-Dichloropropane
1,3-Dichlorobenzene
1,3-Dichloropropane
1,4-Dichlorobenzene
2,2-Dichloropropane
2-Butanone (MEK)
2-Chlorotoluene
2-Hexanone
4-Chlorotoluene
4-Methyl-2-pentanone
(MIBK)
Acetone
Benzene
Bromobenzene
Bromochloromethane
Bromodichloromethane
Bromoform
Bromomethane
Carbon tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
cis-1,2-Dichloroethene
cis-1,3-Dichloropropene
Dibromochloromethane
Dibromomethane
Dichlorodifluoromethane
Diisopropyl ether
Ethylbenzene
Hexachloro-1,3-butadiene
2882858
MSD
Spike MS MSD MS MSD % Rec
Conc. Result Result % Rec % Rec Limits
ug/L
40.0 U
800
800
843
865
105
108
73-134
ug/L
40.0 U
800
800
853
844
107
105
82-143
ug/L
40.0 U
800
800
833
869
104
109
70-136
ug/L
40.0 U
800
800
822
854
103
107
70-135
ug/L
40.0 U
800
800
933
877
117
110
70-139
ug/L
40.0 U
800
800
980
979
123
122
70-154
ug/L
40.0 U
800
800
924
906
115
113
70-149
ug/L
40.0 U
800
800
909
946
114
118
70-135
ug/L
40.0 U
800
800
840
886
105
111
71-137
ug/L
40.0 U
800
800
906
904
113
113
73-140
ug/L
200 U
800
800
739
809
92
101
65-134
Max
RPD RPD Qual
3 30
1 30
4 30
4 30
6 30
0 30
2 30
4 30
5 30
0 30
9 30
ug/L
40.0 U
800
800
876
858
110
107
70-137
2
30
ug/L
40.0 U
800
800
936
1000
117
125
70-133
7
30
ug/L
40.0 U
800
800
886
908
111
113
70-137
2
30
ug/L
40.0 U
800
800
891
921
111
115
70-140
3
30
ug/L
40.0 U
800
800
965
1010
121
126
70-135
4
30
ug/L
40.0 U
800
800
898
935
112
117
70-143
4
30
ug/L
40.0 U
800
800
863
950
108
119
70-133
10
30
ug/L
40.0 U
800
800
585
598
73
75
61-148
2
30
ug/L
200 U
1600
1600
1720
1700
108
106
60-139
1
30
ug/L
40.0 U
800
800
915
1010
114
127
70-144
10
30
ug/L
200 U
1600
1600
1810
1840
113
115
65-138
2
30
ug/L
40.0 U
800
800
923
1020
115
128
70-137
10
30
ug/L
200 U
1600
1600
1690
1740
106
109
65-135
3
30
ug/L
1000 U
1600
1600
1870
1820
117
114
60-148
3
30 v1
ug/L
40.0 U
800
800
928
915
116
114
70-151
1
30
ug/L
40.0 U
800
800
936
979
117
122
70-136
4
30
ug/L
40.0 U
800
800
822
777
103
97
70-141
6
30
ug/L
40.0 U
800
800
784
826
98
103
70-138
5
30
ug/L
40.0 U
800
800
751
781
94
98
63-130
4
30
ug/L
80.0 U
800
800
953
957
119
120
15-152
0
30 IH
ug/L
40.0 U
800
800
883
902
110
113
70-143
2
30
ug/L
40.0 U
800
800
922
932
115
117
70-138
1
30
ug/L
40.0 U
800
800
868
827
108
103
52-163
5
30
ug/L
200 U
800
800
867
860
108
108
70-139
1
30
ug/L
40.0 U
800
800
818
817
102
102
41-139
0
30
ug/L
855
800
800
1730
1730
109
109
70-141
0
30
ug/L
40.0 U
800
800
749
803
94
100
70-137
7
30
ug/L
40.0 U
800
800
797
854
100
107
70-134
7
30
ug/L
40.0 U
800
800
841
886
105
111
70-138
5
30
ug/L
40.0 U
800
800
777
770
97
96
47-155
1
30
ug/L
40.0 U
800
800
920
936
115
117
63-144
2
30
ug/L
40.0 U
800
800
886
920
111
115
66-153
4
30
ug/L
40.0 U
800
800
855
979
107
122
65-149
14
30 IH
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 21 of 36

leAnalyiical
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og8�wi�c6r�e. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882857
2882858
MS
MSD
92475939008
Spike
Spike
MS
MSD
MS
MSD
% Rec
Max
Parameter
Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD
RPD Qual
m&p-Xylene
ug/L
80.0 U
1600
1600
1840
1900
115
119
69-152
3
30
Methyl-tert-butyl ether
ug/L
40.0 U
800
800
857
823
107
103
54-156
4
30
Methylene Chloride
ug/L
200 U
800
800
1000
991
125
124
42-159
1
30
Naphthalene
ug/L
40.0 U
800
800
890
949
111
119
61-148
6
30
o-Xylene
ug/L
40.0 U
800
800
900
947
112
118
70-148
5
30
p-Isopropyltoluene
ug/L
40.0 U
800
800
961
1010
120
126
70-146
5
30
Styrene
ug/L
40.0 U
800
800
921
956
115
120
70-135
4
30
Tetrachloroethene
ug/L
4170
800
800
5150
5230
122
132
59-143
2
30
Toluene
ug/L
40.0 U
800
800
831
850
104
106
59-148
2
30
trans-1,2-Dichloroethene
ug/L
40.0 U
800
800
965
932
121
116
70-146
4
30
trans-1,3-Dichloropropene
ug/L
40.0 U
800
800
732
766
92
96
70-135
5
30
Trichloroethene
ug/L
241
800
800
1140
1180
113
118
70-147
3
30
Trichlorofluoromethane
ug/L
40.0 U
800
800
786
771
98
96
70-148
2
30
Vinyl acetate
ug/L
80.0 U
1600
1600
2080
2090
130
130
49-151
0
30
Vinyl chloride
ug/L
40.0 U
800
800
959
897
120
112
70-156
7
30
Xylene (Total)
ug/L
40.0 U
2400
2400
2740
2850
114
119
63-158
4
30
1,2-Dichloroethane-d4 (S)
%
107
104
70-130
4-Bromofluorobenzene (S)
%
99
99
70-130
Toluene-d8 (S)
%
97
101
70-130
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 22 of 36

leAnalyiical
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Pace Analytical Services, LLC
og8�winfbode. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
QC Batch: 540971 Analysis Method: EPA 8082A
QC Batch Method: EPA 3510C Analysis Description: 8082 GCS PCB
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92476714001
METHOD BLANK: 2883111
Associated Lab Samples: 92476714001
Parameter
PCB-1016 (Aroclor 1016)
PCB-1221 (Aroclor 1221)
PCB-1232 (Aroclor 1232)
PCB-1242 (Aroclor 1242)
PCB-1248 (Aroclor 1248)
PCB-1254 (Aroclor 1254)
PCB-1260 (Aroclor 1260)
Decachlorobiphenyl (S)
Matrix: Water
Units
Blank
Result
Reporting
Limit
Analyzed
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
ug/L
ND
0.50
05/13/20 07:52
%
74
10-130
05/13/20 07:52
Qualifiers
LABORATORY CONTROL SAMPLE: 2883112
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
PCB-1016 (Aroclor 1016) ug/L 5 4.8 97 41-130
PCB-1260 (Aroclor 1260) ug/L 5 4.9 97 42-130
Decachlorobiphenyl (S) % 110 10-130
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2883113
2883114
MS
MSD
92476875005 Spike
Spike MS
MSD
MS
MSD
% Rec
Max
Parameter
Units Result Conc.
Conc. Result
Result
% Rec
% Rec
Limits
RPD RPD Qual
PCB-1016 (Aroclor 1016)
ug/L ND 5
5 4.2
4.9
83
98
15-130
16 30
PCB-1260 (Aroclor 1260)
ug/L ND 5
5 4.1
4.6
81
92
10-130
13 30
Decachlorobiphenyl (S)
%
102
111
10-130
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 23 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8�wnfbode. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
QC Batch: 540748 Analysis Method: EPA 8270E
QC Batch Method: EPA 3510C Analysis Description: 8270E Water MSSV RVE
Laboratory: Pace Analytical Services - Charlotte
Associated Lab Samples: 92476714001
METHOD BLANK: 2882098
Associated Lab Samples: 92476714001
Parameter
Units
Matrix:
Blank
Result
Water
Reporting
Limit
Analyzed
1,2,4-Trichlorobenzene
ug/L
ND
10.0
05/11/20 19:49
1,2-Dichlorobenzene
ug/L
ND
10.0
05/11/20 19:49
1,3-Dichlorobenzene
ug/L
ND
10.0
05/11/20 19:49
1,4-Dichlorobenzene
ug/L
ND
10.0
05/11/20 19:49
1-Methylnaphthalene
ug/L
ND
10.0
05/11/20 19:49
2,2'-Oxybis(1-chloropropane)
ug/L
ND
10.0
05/11/20 19:49
2,4,5-Trichlorophenol
ug/L
ND
10.0
05/11/20 19:49
2,4,6-Trichlorophenol
ug/L
ND
10.0
05/11/20 19:49
2,4-Dichlorophenol
ug/L
ND
10.0
05/11/20 19:49
2,4-Dimethylphenol
ug/L
ND
10.0
05/11/20 19:49
2,4-Dinitrophenol
ug/L
ND
50.0
05/11/20 19:49
2,4-Dinitrotoluene
ug/L
ND
10.0
05/11/20 19:49
2,6-Dinitrotoluene
ug/L
ND
10.0
05/11/20 19:49
2-Chloronaphthalene
ug/L
ND
10.0
05/11/20 19:49
2-Chlorophenol
ug/L
ND
10.0
05/11/20 19:49
2-Methylnaphthalene
ug/L
ND
10.0
05/11/20 19:49
2-Methylphenol(o-Cresol)
ug/L
ND
10.0
05/11/20 19:49
2-Nitroaniline
ug/L
ND
20.0
05/11/20 19:49
2-Nitrophenol
ug/L
ND
10.0
05/11/20 19:49
3&4-Methyl phenol (m&p Cresol)
ug/L
ND
10.0
05/11/20 19:49
3,3'-Dichlorobenzidine
ug/L
ND
20.0
05/11/20 19:49
3-Nitroaniline
ug/L
ND
20.0
05/11/20 19:49
4,6-Dinitro-2-methyl phenol
ug/L
ND
20.0
05/11/20 19:49
4-Bromophenylphenyl ether
ug/L
ND
10.0
05/11/20 19:49
4-ChIoro-3-methyl phenol
ug/L
ND
10.0
05/11/20 19:49
4-Chloroaniline
ug/L
ND
20.0
05/11/20 19:49
4-Chlorophenylphenyl ether
ug/L
ND
10.0
05/11/20 19:49
4-Nitroaniline
ug/L
ND
20.0
05/11/20 19:49
4-Nitrophenol
ug/L
ND
50.0
05/11/20 19:49
Acenaphthene
ug/L
ND
10.0
05/11/20 19:49
Acenaphthylene
ug/L
ND
10.0
05/11/20 19:49
Aniline
ug/L
ND
10.0
05/11/20 19:49
Anthracene
ug/L
ND
10.0
05/11/20 19:49
Benzo(a)anthracene
ug/L
ND
10.0
05/11/20 19:49
Benzo(a)pyrene
ug/L
ND
10.0
05/11/20 19:49
Benzo(b)fluoranthene
ug/L
ND
10.0
05/11/20 19:49
Benzo(g,h,i)perylene
ug/L
ND
10.0
05/11/20 19:49
Benzo(k)fluoranthene
ug/L
ND
10.0
05/11/20 19:49
Benzoic Acid
ug/L
ND
50.0
05/11/20 19:49
Benzyl alcohol
ug/L
ND
20.0
05/11/20 19:49
V1
Qualifiers
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 24 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8�Wi�c6r�e. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
METHOD BLANK: 2882098
Associated Lab Samples: 92476714001
Parameter
Units
Matrix:
Blank
Result
Water
Reporting
Limit
Analyzed
bis(2-Chloroethoxy)methane
ug/L
ND
10.0
05/11/20 19:49
bis(2-Chloroethyl) ether
ug/L
ND
10.0
05/11/20 19:49
bis(2-Ethylhexyl)phthalate
ug/L
ND
6.0
05/11/20 19:49
Butylbenzylphthalate
ug/L
ND
10.0
05/11/20 19:49
Chrysene
ug/L
ND
10.0
05/11/20 19:49
Di-n-butylphthalate
ug/L
ND
10.0
05/11/20 19:49
Di-n-octylphthalate
ug/L
ND
10.0
05/11/20 19:49
Dibenz(a,h)anthracene
ug/L
ND
10.0
05/11/20 19:49
Dibenzofuran
ug/L
ND
10.0
05/11/20 19:49
Diethylphthalate
ug/L
ND
10.0
05/11/20 19:49
Dimethylphthalate
ug/L
ND
10.0
05/11/20 19:49
Fluoranthene
ug/L
ND
10.0
05/11/20 19:49
Fluorene
ug/L
ND
10.0
05/11/20 19:49
Hexachloro-1,3-butadiene
ug/L
ND
10.0
05/11/20 19:49
Hexachlorobenzene
ug/L
ND
10.0
05/11/20 19:49
Hexachlorocyclopentadiene
ug/L
ND
10.0
05/11/20 19:49
Hexachloroethane
ug/L
ND
10.0
05/11/20 19:49
Indeno(1,2,3-cd)pyrene
ug/L
ND
10.0
05/11/20 19:49
Isophorone
ug/L
ND
10.0
05/11/20 19:49
N-Nitroso-di-n-propylamine
ug/L
ND
10.0
05/11/20 19:49
N-Nitrosodimethylamine
ug/L
ND
10.0
05/11/20 19:49
N-Nitrosodiphenylamine
ug/L
ND
10.0
05/11/20 19:49
Naphthalene
ug/L
ND
10.0
05/11/20 19:49
Nitrobenzene
ug/L
ND
10.0
05/11/20 19:49
Pentachlorophenol
ug/L
ND
20.0
05/11/20 19:49
Phenanthrene
ug/L
ND
10.0
05/11/20 19:49
Phenol
ug/L
ND
10.0
05/11/20 19:49
Pyrene
ug/L
ND
10.0
05/11/20 19:49
2,4,6-Tribromophenol (S)
%
84
10-137
05/11/20 19:49
2-Fluorobiphenyl (S)
%
86
13-130
05/11/20 19:49
2-Fluorophenol (S)
%
80
10-130
05/11/20 19:49
Nitrobenzene-d5 (S)
%
92
13-130
05/11/20 19:49
Phenol-d6 (S)
%
62
10-130
05/11/20 19:49
Terphenyl-d14 (S)
%
125
25-130
05/11/20 19:49
v1
Qualifiers
LABORATORY CONTROL SAMPLE:
2882099
Spike
LCS
LCS
% Rec
Parameter
Units
Conc.
Result
% Rec
Limits Qualifiers
1,2,4-Trichlorobenzene
ug/L
50
36.7
73
30-130
1,2-Dichlorobenzene
ug/L
50
39.6
79
30-130
1,3-Dichlorobenzene
ug/L
50
37.9
76
20-130
1,4-Dichlorobenzene
ug/L
50
41.0
82
30-130
1-Methylnaphthalene
ug/L
50
42.8
86
30-130
2,2'-Oxybis(1-chloropropane)
ug/L
50
56.1
112
20-130 v1
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 25 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8�wnfbode. Suite 100
��JJ Huntersville, NC 28078
[phone]
Project: J20050103
Pace Project No.: 92476714
LABORATORY CONTROL SAMPLE: 2882099
Parameter
QUALITY CONTROL DATA
Spike LCS LCS % Rec
Units Conc. Result % Rec Limits Qualifiers
2,4,5-Trichlorophenol
ug/L
50
47.5
95
40-130
2,4,6-Trichlorophenol
ug/L
50
47.4
95
40-130
2,4-Dichlorophenol
ug/L
50
47.6
95
31-130
2,4-Dimethylphenol
ug/L
50
47.9
96
30-130
2,4-Dinitrophenol
ug/L
250
260
104
30-130
2,4-Dinitrotoluene
ug/L
50
54.6
109
49-130
2,6-Dinitrotoluene
ug/L
50
55.7
111
50-130
2-Chloronaphthalene
ug/L
50
43.6
87
30-130
2-Chlorophenol
ug/L
50
49.5
99
30-130
2-Methylnaphthalene
ug/L
50
44.6
89
30-130
2-Methylphenol(o-Cresol)
ug/L
50
48.6
97
30-130
2-Nitroaniline
ug/L
100
93.9
94
40-130
2-Nitrophenol
ug/L
50
53.0
106
20-130
3&4-Methyl phenol (m&p Cresol)
ug/L
50
99.3
199
20-130 L1
3,3'-Dichlorobenzidine
ug/L
100
101
101
10-150
3-Nitroaniline
ug/L
100
114
114
40-130
4,6-Dinitro-2-methyl phenol
ug/L
100
111
111
40-130
4-Bromophenylphenyl ether
ug/L
50
42.8
86
30-130
4-ChIoro-3-methyl phenol
ug/L
100
102
102
30-130
4-Chloroaniline
ug/L
100
93.9
94
20-130
4-Chlorophenylphenyl ether
ug/L
50
42.5
85
20-130
4-Nitroaniline
ug/L
100
107
107
40-130
4-Nitrophenol
ug/L
250
200
80
10-130
Acenaphthene
ug/L
50
47.0
94
30-130
Acenaphthylene
ug/L
50
49.7
99
30-130
Aniline
ug/L
50
41.7
83
20-130
Anthracene
ug/L
50
47.9
96
50-130
Benzo(a)anthracene
ug/L
50
51.0
102
50-130
Benzo(a)pyrene
ug/L
50
51.5
103
50-130
Benzo(b)fluoranthene
ug/L
50
54.8
110
50-130
Benzo(g,h,i)perylene
ug/L
50
49.6
99
50-130
Benzo(k)fluoranthene
ug/L
50
53.0
106
50-130
Benzoic Acid
ug/L
250
198
79
10-130
Benzyl alcohol
ug/L
100
92.5
93
20-130
bis(2-Chloroethoxy)methane
ug/L
50
47.8
96
30-130
bis(2-Chloroethyl) ether
ug/L
50
46.0
92
30-130
bis(2-Ethylhexyl)phthalate
ug/L
50
61.7
123
50-130 v1
Butylbenzylphthalate
ug/L
50
64.6
129
50-150 v1
Chrysene
ug/L
50
48.4
97
50-130
Di-n-butylphthalate
ug/L
50
55.8
112
50-130
Di-n-octylphthalate
ug/L
50
66.9
134
50-130 L1,v1
Dibenz(a,h)anthracene
ug/L
50
50.6
101
40-130
Dibenzofuran
ug/L
50
46.9
94
40-130
Diethylphthalate
ug/L
50
52.8
106
40-130
Dimethylphthalate
ug/L
50
50.7
101
40-130
Fluoranthene
ug/L
50
49.7
99
30-130
Fluorene
ug/L
50
47.2
94
20-130
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 26 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8�wnfbode. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
LABORATORY CONTROL SAMPLE:
Parameter
2882099
Units
Spike
Conc.
LCS
Result
LCS
% Rec
% Rec
Limits
Hexachloro-1,3-butadiene
ug/L
50
31.8
64
10-130
Hexachlorobenzene
ug/L
50
43.4
87
30-130
Hexachlorocyclopentadiene
ug/L
50
33.0
66
10-150
Hexachloroethane
ug/L
50
36.7
73
10-130
Indeno(1,2,3-cd)pyrene
ug/L
50
50.8
102
40-130
Isophorone
ug/L
50
49.2
98
30-130
N-Nitroso-di-n-propylamine
ug/L
50
45.5
91
30-130
N-Nitrosodimethylamine
ug/L
50
43.2
86
10-130
N-Nitrosodiphenylamine
ug/L
50
48.5
97
30-130
Naphthalene
ug/L
50
43.8
88
20-130
Nitrobenzene
ug/L
50
44.8
90
20-130
Pentachlorophenol
ug/L
100
97.9
98
10-140
Phenanthrene
ug/L
50
47.4
95
50-130
Phenol
ug/L
50
39.5
79
10-130
Pyrene
ug/L
50
53.0
106
50-130
2,4,6-Tribromophenol (S)
%
95
10-137
2-Fluorobiphenyl (S)
%
87
13-130
2-Fluorophenol (S)
%
85
10-130
Nitrobenzene-d5 (S)
%
90
13-130
Phenol-d6 (S)
%
72
10-130
Terphenyl-d14 (S)
%
115
25-130
Qualifiers
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882100
MS
92471460011 Spike
Parameter Units Result Conc.
MSD
Spike
Conc.
2882101
MS
Result
MSD
Result
MS
% Rec
MSD
% Rec
% Rec
Limits
RPD
Max
RPD Qual
1,2,4-Trichlorobenzene
ug/L
ND
50
50
26.9
31.5
54
63
30-130
16
30
1,2-Dichlorobenzene
ug/L
ND
50
50
28.3
33.9
57
68
30-130
18
30
1,3-Dichlorobenzene
ug/L
ND
50
50
27.5
33.0
55
66
20-130
18
30
1,4-Dichlorobenzene
ug/L
ND
50
50
29.5
34.9
59
70
30-130
17
30
1-Methyl naphthalene
ug/L
ND
50
50
31.6
37.6
63
75
30-130
17
30
2,2'-Oxybis(1-
ug/L
ND
50
50
40.4
47.5
81
95
20-130
16
30 v1
chloropropane)
2,4,5-Trichlorophenol
ug/L
ND
50
50
33.4
40.7
67
81
40-130
20
30
2,4,6-Trichlorophenol
ug/L
ND
50
50
33.3
39.9
67
80
40-130
18
30
2,4-Dichlorophenol
ug/L
ND
50
50
33.5
38.6
67
77
31-130
14
30
2,4-Dimethylphenol
ug/L
ND
50
50
33.6
39.1
67
78
30-130
15
30
2,4-Dinitrophenol
ug/L
ND
250
250
199
229
80
91
30-130
14
30
2,4-Dinitrotoluene
ug/L
ND
50
50
44.2
48.9
88
98
49-130
10
30
2,6-Dinitrotoluene
ug/L
ND
50
50
42.4
48.6
85
97
50-130
14
30
2-Chloronaphthalene
ug/L
ND
50
50
32.3
39.1
65
78
30-130
19
30
2-Chlorophenol
ug/L
ND
50
50
33.4
39.3
67
79
30-130
16
30
2-Methyl naphthalene
ug/L
ND
50
50
32.6
38.3
65
77
30-130
16
30
2-Methyl phenol(o-Cresol)
ug/L
ND
50
50
30.0
35.6
60
71
30-130
17
30
2-Nitroaniline
ug/L
ND
100
100
68.9
82.0
69
82
40-130
17
30
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 27 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8� 6fbode. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882100
MS
92471460011 Spike
Parameter Units Result Conc.
MSD
Spike
Conc.
2882101
MS
Result
MSD
Result
MS
% Rec
MSD
% Rec
% Rec
Limits
RPD
Max
RPD Qual
2-Nitrophenol
ug/L
ND
50
50
38.5
45.8
77
92
20-130
17
30
3&4-Methylphenol(m&p
ug/L
ND
50
50
65.5
59.6
131
119
20-130
9
30 MO
Cresol)
3,3'-Dichlorobenzidine
ug/L
ND
100
100
86.3
53.7
86
54
10-150
47
30 R1
3-Nitroaniline
ug/L
ND
100
100
84.9
99.0
85
99
40-130
15
30
4,6-Dinitro-2-methylphenol
ug/L
ND
100
100
88.1
99.0
88
99
40-130
12
30
4-Bromophenylphenyl ether
ug/L
ND
50
50
33.4
38.5
67
77
30-130
14
30
4-Chloro-3-methylphenol
ug/L
ND
100
100
70.3
80.7
70
81
30-130
14
30
4-Chloroaniline
ug/L
ND
100
100
64.5
32.2
64
32
20-130
67
30 R1
4-Chlorophenylphenyl ether
ug/L
ND
50
50
31.4
37.2
63
74
20-130
17
30
4-Nitroaniline
ug/L
ND
100
100
88.8
95.0
89
95
40-130
7
30
4-Nitrophenol
ug/L
ND
250
250
128
138
51
55
10-130
7
30
Acenaphthene
ug/L
ND
50
50
34.8
41.4
70
83
30-130
17
30
Acenaphthylene
ug/L
ND
50
50
36.3
42.6
73
85
30-130
16
30
Aniline
ug/L
ND
50
50
29.3
13.7
59
27
20-130
72
30 R1
Anthracene
ug/L
ND
50
50
39.1
43.2
78
86
50-130
10
30
Benzo(a)anth race ne
ug/L
ND
50
50
43.1
46.8
86
94
50-130
8
30
Benzo(a)pyrene
ug/L
ND
50
50
42.8
46.6
86
93
50-130
8
30
Benzo(b)fluoranthene
ug/L
ND
50
50
45.9
50.0
92
100
50-130
9
30
Benzo(g,h,i)perylene
ug/L
ND
50
50
42.2
46.4
84
93
50-130
9
30
Benzo(k)fluoranthene
ug/L
ND
50
50
42.3
47.0
85
94
50-130
11
30
Benzoic Acid
ug/L
ND
250
250
109
129
44
52
10-130
17
30
Benzyl alcohol
ug/L
ND
100
100
61.3
71.2
61
71
20-130
15
30
bis(2-
ug/L
ND
50
50
34.8
40.3
70
81
30-130
15
30
Chloroethoxy)methane
bis(2-Chloroethyl) ether
ug/L
ND
50
50
34.4
38.8
69
78
30-130
12
30
bis(2- Ethyl hexyl)phthalate
ug/L
ND
50
50
53.2
59.8
106
120
50-130
12
30 v1
Butylbenzylphthalate
ug/L
ND
50
50
54.6
59.9
109
120
50-150
9
30 v1
Chrysene
ug/L
ND
50
50
40.7
44.9
81
90
50-130
10
30
Di-n-butylphthalate
ug/L
ND
50
50
50.3
56.1
101
112
50-130
11
30
Di-n-octylphthalate
ug/L
ND
50
50
56.3
65.9
113
132
50-130
16
30 MOM
Dibenz(a,h)anthracene
ug/L
ND
50
50
42.6
47.8
85
96
40-130
11
30
Dibenzofuran
ug/L
ND
50
50
34.5
40.7
69
81
40-130
17
30
Diethylphthalate
ug/L
ND
50
50
42.4
47.9
85
96
40-130
12
30
Dimethylphthalate
ug/L
ND
50
50
38.8
45.1
78
90
40-130
15
30
Fluoranthene
ug/L
ND
50
50
42.0
45.5
84
91
30-130
8
30
Fluorene
ug/L
ND
50
50
35.4
41.3
71
83
20-130
15
30
Hexachloro-1,3-butadiene
ug/L
ND
50
50
22.8
27.3
46
55
10-130
18
30
Hexachlorobenzene
ug/L
ND
50
50
34.1
39.7
68
79
30-130
15
30
Hexachlorocyclopentadiene
ug/L
ND
50
50
23.9
28.6
48
57
10-150
18
30
Hexachloroethane
ug/L
ND
50
50
25.9
31.6
52
63
10-130
20
30
Indeno(1,2,3-cd)pyrene
ug/L
ND
50
50
42.3
46.8
85
94
40-130
10
30
Isophorone
ug/L
ND
50
50
35.9
42.0
72
84
30-130
16
30
N-Nitroso-di-n-propylamine
ug/L
ND
50
50
33.1
38.0
66
76
30-130
14
30
N-Nitrosodimethylamine
ug/L
ND
50
50
27.7
32.1
55
64
10-130
15
30
N-Nitrosodiphenylamine
ug/L
ND
50
50
38.7
43.6
77
87
30-130
12
30
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 28 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8� iT,6f�e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882100
2882101
MS
MSD
92471460011
Spike
Spike
MS
MSD
MS
MSD
% Rec
Max
Parameter
Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD
RPD Qual
Naphthalene
ug/L
ND
50
50
32.6
38.2
65
76
20-130
16
30
Nitrobenzene
ug/L
ND
50
50
32.2
39.5
64
79
20-130
20
30
Pentachlorophenol
ug/L
ND
100
100
79.7
86.6
80
87
10-140
8
30
Phenanthrene
ug/L
ND
50
50
38.8
43.1
78
86
50-130
11
30
Phenol
ug/L
ND
50
50
23.4
24.4
47
49
10-130
4
30
Pyrene
ug/L
ND
50
50
43.9
48.5
88
97
50-130
10
30
2,4,6-Tribromophenol (S)
%
80
92
10-137
2-Fluorobiphenyl (S)
%
69
82
13-130
2-Fluorophenol(S)
%
53
63
10-130
Nitrobenzene-d5(S)
%
72
88
13-130
Phenol-d6 (S)
%
44
50
10-130
Terphenyl-d14(S)
%
100
112
25-130
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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 29 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8� nfbode. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
QC Batch: 540866 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: 92476714001
METHOD BLANK: 2882755
Associated Lab Samples: 92476714001
Parameter Units
Sulfide mg/L
LABORATORY CONTROL SAMPLE: 2882756
Parameter Units
Sulfide mg/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
ND 0.10 05/11/20 23:12
Spike LCS LCS % Rec
Conc. Result % Rec Limits Qualifiers
0.5 0.52 104 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2882759 2882760
MS MSD
92476669002 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 0.49 0.49 97 98 80-120 1 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2883033 2883034
MS MSD
92476714001 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 0.49 0.45 97 89 80-120 9 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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 30 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8� iSc6r�e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J20050103
Pace Project No.: 92476714
QC Batch: 540931 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: 92476714001
METHOD BLANK: 2883010
Associated Lab Samples: 92476714001
Parameter Units
Chromium, Hexavalent ug/L
LABORATORY CONTROL SAMPLE: 2883011
Parameter Units
Chromium, Hexavalent ug/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
ND 0.025 05/12/2015:09
Spike LCS LCS % Rec
Conc. Result % Rec Limits Qualifiers
0.1 0.095 95 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2883012 2883013
MS MSD
92476714001 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 0.043 0.1 0.1 0.14 0.14 94 98 90-110 3 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2883014 2883015
MS MSD
92476546010 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 0.0191 0.1 0.1 0.12 0.12 102 98 90-110 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
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC.
Page 31 of 36

Pace Analytical Services, LLC
lac,
Analyilcal ® oa82��c6fbUe. Suite 100
Huntersville, NC 28078
www.pacelabs.com [phone]
QUALIFIERS
Project: J20050103
Pace Project No.: 92476714
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
IH This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be
considered an estimated value.
L1 Analyte recovery in the laboratory control sample (LCS) was above QC limits. Results for this analyte in associated
samples may be biased high.
MO Matrix spike recovery and/or matrix spike duplicate recovery was outside laboratory control limits.
R1 RPD value was outside control limits.
v1 The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the
associated samples may have a high bias.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 05/13/2020 02:49 PM without the written consent of Pace Analytical Services, LLC. Page 32 of 36

leAnalyiical
www.pacelabs.com
Pace Analytical Services, LLC
og8� i 6fbode. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
J20050103
92476714
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92476714001
2020012228
EPA 3510C
540971
EPA 8082A
541218
92476714001
2020012228
EPA 3510C
540748
EPA 8270E
540896
92476714001
2020012228
EPA 8260D
540891
92476714001
2020012228
Colisure
540582
Colisure
540583
92476714001
2020012228
SM 4500-S2D-2011
540866
92476714001
2020012228
EPA 218.7 Rev1.0 2011
540931
Date: 05/13/2020 02:49 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 33 of 36

Document Name:
Document Revised: February 7, 2018
/�26*alytical-
Sample Condition Upon Reteipt(SCUR)
Page i of 2
Document No.:
Issuing Authority:
F•CAR-CS-033-Rev.06
Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville ❑ Eden[] Greenwood ❑ Huntersville ❑ Raleigh❑ Mechanicsville❑
Sample Condition Client Name: Project I WO# : 92476714
Courier: [-]Fed Ex ❑UPS ❑USPS ❑Client
❑ Commercial ❑Pace [:]Other:_ 1111111111111111111111
92476714
Custody Seal present? []Yes[:]No Seals Intact? Des ❑No
Date/Initlars Person Examining Contents: i
Packing Material: []Bubble Wrap ❑Bubble Bags []None ❑ Other Biological Tissue Frozen?
Thermometer: []Yes ❑No .❑N/A
❑IR Gun IQ: 92TO61 Type of tce: ❑Wet []Blue ❑None
Cooler Temp I•C}; Correction Factor: Add/Subtract (°CJ +0.1
Temp should be above freezing to VC
Cooler Temp Corrected (•C): I []Samples out of temp criteria. Samples on Ice, cooling process
has begun
USDA Regulated Soil (❑ N/A, water sample)
Did samples originate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source (internationally,
Fyes .FINn includim Hawall and Puerto Ricol? FlYes FIND
Comments/01scre ancy:
Chain of Custody Present?
❑Yes
❑NO
❑N/A
1.
Samples Arrived wlthln Hold Time?
[]Yes
MNO
❑N/A
2.
Short Hold Time Analysis (<72 hr.)?
❑Yes
❑No
❑N/A
3.
Rush Turn Around Time Requested?
[]Yes
[]NO
❑N/A
4.
Sufficient Volume?
.❑Yes
❑No
[]N/A
S.
Correct Containers Used?
Pace Containers Used?
Des
❑Yes
❑No
[:]NO
[]N/A
❑N/A
6.
Containers Intact?
Dyes
❑No—
❑N/A
7.
Dissolved analysis: Samples Field Filtered?
❑Yes
[]No
.. ❑N/A
&
Sample Labels Match COC?
Yes
ONO
N A
9.
Includes Date/Time/ID/Analysis Matrix;
Heads ace in VOA Vials (>S-6mm)?
Des
[]NO
❑N/A
10.
Trip Blank Present?
Trip Blank Custody Seals Present?
[]Yes
❑Yes
❑ho
[]No
❑N/A
❑N/A
11.
COMMENTS/SAMPLE DISCREPANCY field Data Required? []Yes []No
Lot ID of split containers:
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
Date/Time:
Date:
Date:
Page 56 of 60
Page 34 of 36

Document Name:
Document Revised: February 7, 2018
m
�-CeA�alytical
Sample Conciltlon Upon Receipt SCUR)
Page 1 cf 2
Document No.:
Issuing Authority:
F-CAR-CS-033-Rev.05
Pace Carolinas Quality Office
*Check mark top half of box if PH and/or dechlorination is
verified and within the acceptance range for preservation
samples.
Exceptions: VOA, Coliform, TOC, Oil and Grease, DRCs/2015 (water) DOC, LLHg
*"Bottom half of box is to list number of bottle
Project # ' wog ; 92476714
PM: KLHI Due Date: 05/13/20
CLIENT: 92—Duke Ener
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pH Adjustment Log for Preserved Samples
Sample 10
Type of Preservative
pH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
Lot h
Note: Whenever there Is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina OE14NR Certification Office O.e.
Out of hold, Incorrect preservative, out of temp, Incorrect containers.
Page 57 of 60
Page 35 of 36

Page 58 of 60
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Project Name: ALN Infiltration Water Evaluation
Client: Courtney Murphy, Robbin SMJi, Randy Gantt,
R rt Ile t7,,
Operating Unit: AS00
Proc s: BENVWS
Account:
Project: AAS000415
Activity ID:
Facility to:
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PET
PET
PET
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PET
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1 13
Total El

Page 59 of 60
Kendall, Peg9l F
From: Murphy, Courtney
Sent: Thursday, May 21, 2020 11:41 AM
To: Kendall, Peggy F
Subject: FW: Allen Service Water Sampling for GW Infiltration Source
Peggy,
Per Robbin's note below, pH was recorded in the field, but I suppose they forgot to add it to the COC. Since the field pH is likely
more accurate than the lab's (due to temperature dependent variable), I would rather use the field measurement and not have
the lab report a different value. I don't suppose there is a way to include the field pH on the lab report if it wasn't on the COC,
but that's ok for this purpose.
Thanks,
Courtney W- Inurphy, PG
EHS Waste & Groundwater Programs
Courtney.Muri)[e-mail]
Office: 704.382.7171
Mobile: [phone]
From: lolly, Robbin M <[e-mail]>
Sent: Thursday, May 7, 20201:00 PM
To: Murphy, Courtney <[e-mail]>
Subject: RE: Allen Service Water Sampling for GW Infiltration Source
Sample pH = 7.10
Sample Conductivity = 47 µmhos (not sure I buy this number, I need to investigate their instrument/probe)
Temp ~ 68°F according to the CCW (intake) thermocouples.
The field lab(s) here at Allen do not have a means to measure DO or ORP of a grab sample.
Again, I am thinking that Julie Stahl or Josh Quinn may be able to help you obtain this information to better profile Allen's intake
chemistry year round.
Robbin lolly
Regional Services Carolina Coal
Waste Water Treatment
Office: [phone]
Cell: [phone]
�'INERGY
DUKE
� '
From: Murphy, Courtney <Courtne . M urphyftuke-ever .com>
Sent: Thursday, May 7, 2020 8:18 AM
To: Jolly, Robbin M <RobbinJoll duke-ene .com>
Subject: FW: Allen Service Water Sampling for GW Infiltration Source

.jdUOSVIOj
CHAIN
OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
_ _ _ ...............
----- Duke Energy Analytical Laboratory _'_._._._._._._._._._._._._._._._._._. Ana i l Laboral use Only
.-.-•Dttke
Page 60 of 60
Energy
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DISTRIBUTION
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Log
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G "a� Q SAMPLE PROGRAM
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Sample
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L V 1 V t./ Ground Water _X_ NPDES_
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WName: ALNInBltrathmWater Evaluation
!Vendor PACE so Drinking Water 115T_
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Coder Temp-1��.._.. .._.._.._.._.._. _.._.._.._.._.._.._.._.._.._.._.._..a
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at Courtney Murphy, Robbin Randy Gann
Unit:
°"
PACE
m�an� A500
Prays at SENVWS Account:
ion 10.45 um) b Unfiltered
11
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PO 98611944 HCL
if ect: AAS000415
Activity 1D: Facility to:
Preservative In la Ip +.,,
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,.rrr sr icE NONE
ICES
gram 0EOulSTaskCGde:
Sub-PrograniraskCode:
Volume (mil-) 1DDD 500 300 500 500 120
500 40 1000 1000 250 250 250
Station: ALLEN
Conlalneriype PET PET PET PET HOPE PET
PET GLAss s S e9 HOPE HGPE
Customs
Sample Description or ID
L
Dale
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Rim
0
OEM
0
9
PIP
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DateRime
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Requested Turnaround
Total 15
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'14 Days 13 a d
Datemme
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Sea Opened By P aterrime
Daterrime
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'40Hr
.:v
m
ELEMENTS by ICP_MS (TRM)- Sb, As, Be, Cd LL, Cr, Co, Cu, Pb_LL, Mo. Ni, So, Ag LL, TILL, V_LL
n
.Other ASAP
ELEMENTS by ICP (TRM): At, On, B, Co. Fe, LI, Mg, Mn, K, No,Sr, Zn. Total Hardness Hg 245.1
n
'Add. Cost Will Apply
Dissolved Metals: All Metals: ICP_DIS,TRM . IMS_DIS TRM
u

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]