FINAL Mayo Ash Basin Pumping Test Report_20190131

161p
synTerra
ASH BASIN PUMPING TEST REPORT
FOR
MAYO STEAM ELECTRIC PLANT
10660 BOSTON ROAD
ROXBORO, NORTH CAROLINA 27574
SUBMITTED: JANUARY 2019
PREPARED FOR
DUKE ENERGY PROGRESS, LLC
DUKE
!Lft� '4; ENERGY®
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CA r111z Peggy W. ATman
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Jorr." W�ie, NC LG 1425
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
EXECUTIVE SUMMARY
Pumping tests were conducted within the ash basin at the Mayo Steam Electric Plant
(Mayo, the Site) to determine field scale hydraulic characteristics and evaluate changes
in aqueous geochemical behavior of materials within the ash basin. Results from the
pumping tests will be used in evaluation of ash basin closure and to support, refine, or
modify assumptions in the groundwater flow and transport and geochemical models in
support of groundwater corrective action planning. The updated models will be
included in the upcoming updated groundwater Corrective Action Plan (CAP).
An extraction (pumping) well and six observations wells were installed in the ash
material located in the south-central portion of the ash basin delta deposits. The base of
the ash at the pumping test location is 68 feet below ground surface (ft bgs). The
pumping well, AP-6, was screened from 55 to 65 ft bgs, near the base of the ash.
Observation wells were screened near the base of the ash (lower), the ash pore water
potentiometric surface (upper), and halfway between (middle). An observation well in
each flow layer was installed at 15- and 30-foot radii from the pumping well. Three
previously installed monitoring wells located in the ash basin were used for peripheral
water level monitoring during the pumping test.
Observations of cores obtained during well installation indicate ash within the basin
consists of stratified layers of fine-grained fly ash interbedded with coarser -grained
bottom ash. The development of stratified layers in the ash basin is a result of historic
sluicing operations. The lower flow layer consisted of primarily silt -size grains (fly ash).
The middle and upper flow layers were comprised of poorly sorted coarse -grained
bottom ash with thin layers of fly ash throughout.
Data logging pressure transducers were placed in each well within the network to
measure water levels. Pumping tests were preceded by an approximate one -week
period of baseline water level measurements, followed by a step -rate test to determine
well efficiency of the pumping well and the maximum sustained pumping rate of the
extraction well. Based on those results, and after the water levels had equilibrated, a 36-
hour constant rate pumping test was conducted with pumping from the lower flow
zone at pumping well AP-6. At the conclusion of the 36-hour pumping test, water levels
equilibrated for a period of two weeks. Following the equilibration period, a 24-hour
constant rate pumping test was conducted with pumping from the middle flow zone in
observation well AP-6-M15, located in the middle of the AP-6 well cluster. The
pumping rate for the 36-hour pumping test was approximately 0.35 gallons per minute
(gpm). The pumping rate for the 24-hour pumping test was approximately 0.56 gpm.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
During the 36-hour lower ash pumping test, no response was observed in upper ash
observation wells and only limited drawdown was observed in the middle ash
observation wells. Measureable drawdown was only observed in the lower ash wells
installed at 15-foot and 30-foot radii from the pumping well. Analysis of pumping
drawdown curves indicates the stratified ash material is acting as a semi -confined
system with one or more of the fine ash layers acting as aquitards. Semi -confined
solutions (Hantush and Hantush-Jacobs) were selected to analyze the data.
The estimated media properties for the lower flow layer of saturated ash at the AP-6
well cluster location were:
• Transmissivity (T) (ftz/day)
Average Composite
38 40.3
• Hydraulic conductivity (K) (ft/day) 0.6 0.6
• Storativity (S)
0.01 0.01
• Ratio of vertical conductivity (K') to thickness (b') (day-') 2.3 x 10-z 1.1 x 10-2
During the 24-hour pumping test, the middle ash observation wells showed a response
within the middle ash layer and the lower ash layer. The upper ash layers did not show
a response. Data from the 24-hour pumping test were not analyzed beyond field
observations of water level data due to fluctuations in flow rate and a heavy rain event
during the test.
Based on observations of water level data made during the pumping tests, horizontal
flow is likely the dominant component of flow within the ash basin and the fine-grained
layers in the ash are acting like semi -confined units.
Water quality field measurements and laboratory analysis of ash pore water samples
were conducted for the 36-hour pumping test. These results indicate that constituents of
interest (COI) concentrations, as well as field parameters, were stable throughout the
test. Higher specific conductivity values and lower dissolved oxygen (DO) and
oxidation-reduction potential (ORP) values observed throughout the duration of
pumping are consistent with historical ash pore water values measured on Site.
Analytical results of ash pore water combined with the high specific conductivity value
and low DO and ORP indicate that recharge was occurring from the ash pore water
rather than the underlying saprolite (based on historical groundwater quality data).
Monitoring of field parameters and analytical data of samples during the pumping test
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
indicates geochemical conditions and constituent concentrations remained relatively
stable with no apparent increase in mobility.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
TABLE OF CONTENTS
SECTION
Page
EXECUTIVESUMMARY..........................................................................................................1
1.0 INTRODUCTION.........................................................................................................1-1
1.1 Pumping Test Objectives.........................................................................................1-1
1.2 Pumping Test Findings............................................................................................1-1
1.2.1 Lower Ash 36-Hour Pumping Test..................................................................1-1
1.2.2 Middle Ash 24-Hour Pumping Test.................................................................1-2
1.2.3 Ash Media Properties and Pumping Response..............................................1-2
1.2.4 Ash Pore Water Characteristics Response to Pumping.................................1-3
1.3 Site History, Operations, and Coal Ash Management........................................1-3
1.4 Site Geology and Hydrogeology............................................................................1-4
2.0 WELL INSTALLATION ACTIVITIES.....................................................................2-1
2.1 Installation of Pumping and Observation Wells .................................................. 2-2
2.1.1 Ash Pore Water Pumping Well Installation....................................................2-2
2.1.2 Ash Pore Water Observation Well Installation .............................................. 2-3
2.2 Well Development.................................................................................................... 2-3
3.0 PUMPING TEST IMPLEMENTATION...................................................................3-1
3.1
Baseline Water Level Collection.............................................................................
3-1
3.2
Pumping Tests Setup................................................................................................3-1
3.3
Pumping Tests...........................................................................................................
3-2
3.3.1
AP-6 36-Hour Pumping Test.............................................................................3-3
3.3.2
AP-6-MI5 24-Hour Pumping Test....................................................................3-3
3.4
Post -Processing of Recorded Data..........................................................................
3-4
3.4.1
Pumping Test Data Post-Processing................................................................
3-4
3.4.2
Precipitation Post-Processing............................................................................
3-5
3.4.3
Trends...................................................................................................................
3-5
3.4.4
Data Evaluation...................................................................................................3-5
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
3.5 Summary of Test Results......................................................................................... 3-8
4.0 WATER QUALITY MEASUREMENTS AND ANALYTICAL RESULTS ........ 4-1
4.1 Water Quality Field Parameter Data...................................................................... 4-1
4.2 Water Quality Analytical Data................................................................................ 4-1
5.0 CONCLUSIONS...........................................................................................................5-3
6.0 REFERENCES................................................................................................................ 6-1
LIST OF FIGURES
Figure 1-1 Site Location Map
Figure 2-1 Ash Basin Pumping Test Well Locations
Figure 2-2 AP-6 Well Cluster Location
Figure 3-1 AP-6-L15 Type Curve Solution 36-Hour Ash Basin Pumping Test
Figure 3-2 AP-6-L30 Type Curve Solution 36-Hour Ash Basin Pumping Test
Figure 3-3 AP-6-M15 Type Curve Solution 36-Hour Ash Basin Pumping Test
Figure 3-4 AP-6-M30 Type Curve Solution 36-Hour Ash Basin Pumping Test
Figure 3-5 AP-6 Composite Type Curve Solution 36-Hour Ash Basin Pumping Test
LIST OF TABLES
Table 2-1
Well Construction Details
Table 2-2
Summary of Well Designations and Monitoring Frequencies
Table 3-1
Summary of Step -Rate Test Results
Table 3-2
Summary of Pumping Test Observations
Table 3-3
Summary of Post Processing Data
Table 3-4
Summary of AQTESOLV® Input Values
Table 3-5
Summary of Analytical Solutions
Table 4-1
Water Quality Field Parameters
Table 4-2
Ash Pore Water Analytical Results
LIST OF APPENDICES
Appendix A Ash Basin Pumping Test Work Plan
Appendix B Well Construction/Boring Logs
Appendix C Electronic Data Files — Ash Basin Pumping Test Analytical Evaluation
Appendix D Baseline Hydrographs
Appendix E Step -Rate Test Hydrograph
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
LIST OF APPENDICES CONTINUED
Appendix F Manual Water Level Readings
Appendix G AP-6 36-Hour Ash Basin Pumping Test Hydrographs
Appendix H AP-6-M15 24-Hour Ash Basin Pumping Test Hydrographs
Appendix I Barometric Pressure Graphs
Appendix J Vertical Hydraulic Gradient Data Graphs
Appendix K Field Parameter Data Graphs
Appendix L Analytical Laboratory Reports (Electronic copy)
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
LIST OF ACRONYMS
BGS
Below Ground Surface
b'
Aquifer Thickness
CAMA
Coal Ash Management Act
CAP
Corrective Action Plan
CCR
Coal Combustion Residuals
COI
Constituent of Interest
CSA
Comprehensive Site Assessment
CSM
Conceptual Site Model
DO
Dissolved Oxygen
Duke Energy
Duke Energy Progress, LLC
gpm
Gallons per Minute
ft
Feet
K
Hydraulic Conductivity
K'
Vertical Hydraulic Conductivity
PS/cm
Micro -Siemens per Centimeter
mg/L
Milligrams per Liter
mV
Millivolts
NCAC
North Carolina Administrative Code
NCDEQ
North Carolina Department of Environmental Quality
NSF
National Sanitation Foundation
NTUs
Nephelometric Turbidity Units
ORP
Oxidation Reduction Potential
PVC
Polyvinyl Chloride
RRO
NCDEQ Raleigh Regional Office
S
Storativity
Site
Mayo Steam Electric Plant
S.U.
Standard Units
T
Transmissivity
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
1.0 INTRODUCTION
This report provides a description of activities and findings associated with pumping
tests within the ash basin at the Duke Energy Progress, LLC (Duke Energy) Mayo Steam
Electric Plant (Mayo, the Site). Mayo is located in Roxboro, North Carolina. The
pumping tests were performed to determine field scale hydraulic characteristics and to
evaluate changes in aqueous geochemical behavior of materials within the ash basin
during pumping activities. The findings will be used in evaluations of ash basin closure
options. The results will also be used in flow and transport modeling and geochemical
modeling of the ash basin system. The models will be used in groundwater corrective
action planning.
1.1 Pumping Test Objectives
Objectives of the ash basin pumping tests include:
• Evaluation of field scale horizontal and vertical variability of the hydrologic
characteristics for the saturated media
• Estimation of media properties, including transmissivity (T), hydraulic
conductivity (K), storativity (S), and ratio of vertical conductivity to thickness
(K'ro')
• Evaluation of hydraulic head (water level) response to active pumping
• Evaluation of field water quality indicator parameters and concentration changes
in constituents of interest (COIs) from dewatering the ash
1.2 Pumping Test Findings
Findings from the evaluations listed above include the following as discussed in more
detail later in the document:
1.2.1 Lower Ash 36-Hour Pumping Test
An average pumping rate of 0.35 gallons per minute (gpm) from pumping well,
AP-6, for a period of 36 hours resulted in a drawdown of 24.94 feet (ft).
Corresponding drawdown in the observation wells varied slightly with distance
from the pumping well, but more significantly with depth in the ash:
• Upper ash 16 feet from pumping well (AP-6-U15): 0.09 ft
• Upper ash 30 feet from pumping well (AP-6-U30): 0.08 ft
• Middle ash 16 feet from pumping well (AP-6-M15): 0.17 ft
• Middle ash 31 feet from pumping well (AP-6-M30): 0.18 ft
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
• Lower ash 17 feet from pumping well (AP-6-L15): 0.69 ft
• Lower ash 31 feet from pumping well (AP-6-1,30): 0.41 ft
Estimated media properties, T (ft2/day), K (ft/day), S, and K'/b' (day-') varied
with distance and depth in the ash:
• Middle ash (AP-6-MI5): T =
94
K
=1.5
S = 2.8 x 10-2
K'/b'
= 2.7 x 10-2
• Middle ash (AP-6-M30): T =
50
K
= 0.77
S = 8.8 x 10-3
K'/b'
= 2.2 x 10-2
• Lower ash (AP-6-L15): T =
3.3
K = 5.0 x 10-2
S = 2.2 x 10-3
K'/b'
= 2.8 x 10-2
• Lower ash (AP-6-L3O): T =
7.3
K
= 0.11
S =1.7 x 10-3
K'/b'
=1.3 x 10-2
• Composite result: T =
40
K
= 0.6
S =1.0 x 10-2
K'/b'
= 1.1 x 10-2
1.2.2 Middle Ash 24-Hour Pumping Test
A pumping rate of 0.56 gpm from the middle ash well, AP-6-MI5, for a period of
24 hours resulted in a drawdown of 20.63 ft.
Corresponding drawdown in the observation wells varied slightly with distance
from the pumping well but more significantly with depth in the ash:
• Upper ash 11 feet from pumping well (AP-6-L15): 0.04 ft
• Upper ash 21 feet from pumping well (AP-6-U3O): 0.05 ft
• Middle ash 15 feet from pumping well (AP-6-M30): 0.63 ft
• Lower ash 16 feet from pumping well (AP-6): 0.21 ft
• Lower ash 11 feet from pumping well (AP-6-L15): 0.19 ft
• Lower ash 19 feet from pumping well (AP-6-L30): 0.17 ft
Flow was not steady during the test due to field equipment difficulties
(variations due to electrical power supply effects). Therefore, the 24-hour
pumping test was not analyzed for aquifer parameters, but field observations
concerning connectivity between the ash layers were noted.
1.2.3 Ash Media Properties and Pumping Response
The results indicate, as suggested from the total drawdown data, that there is
limited vertical flow from the upper and middle ash to the lower ash. The data
suggests that the drawdown in the lower ash is predominantly from horizontal
flow. Lithologic observations of ash within the basin during well installation
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
indicated interbedded fine-grained and coarse -grained ash layers, which
supports this hypothesis.
Analysis of pumping drawdown curves indicate the ash is acting as a semi -
confined (leaky) system with one or more of the fine ash layers acting as semi -
confining units, limiting downward migration.
1.2.4 Ash Pore Water Characteristics Response to Pumping
Water quality data were only collected during the 36-hour pumping test. Specific
conductivities for the extracted ash pore water for the 36-hour pumping test
were stable during the tests, with an average measured value of 512 micro -
Siemens per centimeter (µS/cm) from AP-6.
The average measured dissolved oxygen (DO) value from the ash pore water
from AP-6 was 0.56 milligrams per liter (mg/L). As expected, this parameter
decreased quickly and was relatively stable during both tests.
The average measured oxidation-reduction potential (ORP) value was -221
millivolts (mV) for AP-6. This parameter stabilized quickly after pumping began.
The average pH value for the water from AP-6 was 7.8 Standard Units (S.U.).
This parameter was stable over the entire 36-hour pumping test.
The results indicate that pumping did not affect these parameters after water in
close proximity to the pumping well was removed and the results were
consistent with previous pore water analysis.
A full list of evaluation results and conclusions is presented in Section 5.0.
1.3 Site History, Operations, and Coal Ash Management
Mayo began operations in 1983 with a single 727-megawatt capacity generating coal-
fired unit. The Site is located in a rural area approximately 10 miles north of the City of
Roxboro in Person County, North Carolina. The majority of the Site property is located
east of Highway 501, encompasses 460 acres, and includes the power plant, ash basin,
and operational features associated with coal generated power plants (Figure 1-1). Coal
combustion residuals (CCR) have historically been managed in the Plant's on -site ash
basin (surface impoundment). CCR materials, composed primarily of fly ash and
bottom ash, were initially deposited in the ash basin by hydraulic sluicing operations.
The Mayo Plant converted to a dry ash system in which 90 percent of CCR was dry in
2013. Final system upgrades were completed in October 2016 and all CCR collection is
now dry.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
Detailed descriptions of the Site operational history, the conceptual site model (CSM),
physical setting and features, geology/hydrogeology, and results of the findings of the
Comprehensive Site Assessment (CSA) and other North Carolina Coal Ash
Management Act (CAMA)-related works are presented in full in the following
documents:
• Comprehensive Site Assessment Report — Mayo Steam Electric Plant (SynTerra,
September 2, 2015)
• Corrective Action Plan Part 1 —Mayo Steam Electric Plant (SynTerra, December 1,
2015)
• Corrective Action Plan Part 2 — Mayo Steam Electric Plant (SynTerra, February 2,
2016)
• Comprehensive Site Assessment Supplement 1 —Mayo Steam Electric Plant (SynTerra,
July 7, 2016)
• Comprehensive Site Assessment Update — Mayo Steam Electric Plant (SynTerra,
October 31, 2017)
1.4 Site Geology and Hydrogeology
Mayo is located near the contact between two regional zones of metamorphosed rocks:
the Carolina Slate Belt (often referred to as Carolina terrane) on the east and the
Charlotte Belt (or Charlotte terrane) to the west. The majority of the Site, including the
largest portion of the ash basin, is situated in the Carolina terrane. The hydrogeologic
regime at the Site is characterized by three zones of groundwater flow. The zone closest
to the surface is the shallow or surficial flow zone encompassing saturated conditions,
where present, in the residual soil, saprolite, or alluvium beneath the Site. A transition
zone is encountered below the surficial zone, above the bedrock, and is characterized
primarily by partially weathered rock of variable thickness. The transition zone is not
consistently saturated across the Site. The bedrock flow zone occurs below the
transition zone and is characterized by the storage and transmission of groundwater in
water -bearing fractures. In general, the groundwater system at the Site is described as
an unconfined, connected aquifer system.
The Mayo ash basin occupies the former stream valley of Crutchfield Branch. The ash
basin was formed when the Crutchfield Branch stream valley was dammed. The basin
acts as a bowl -like feature towards which groundwater flows from the northwest, west,
south, and east. Groundwater flows north-northeast from the ash basin towards the
state line.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
The hydraulically sluiced deposits of ash within the basin consist of stratified layers of
interbedded fine-grained to coarse -grained (fly ash and bottom ash) materials. The
thickness of ash encountered at pumping well AP-6 was 68 feet below ground surface
(bgs). Downward migration of constituents of interest (COIs) from ash pore water to
groundwater (based on historical groundwater quality data) appears to be primarily
controlled by the hydraulics of the Site and the horizontal stratigraphy of ash deposits
within the ash basin.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant SynTerra
2.0 WELL INSTALLATION ACTIVITIES
A Pumping Test Work Plan (Appendix A) was submitted to the North Carolina
Department of Environmental Quality (NCDEQ) Raleigh Regional Office (RRO) on July
10, 2018, and approved on July 27, 2018 (E. Rice email to K. Witt). One extraction
(pumping) well and six observations wells were installed in the ash material located in
the south-central portion of the ash basin delta (Figure 2-1). Wells were installed in the
south central portion of the ash basin in exposed ash approximately 350 feet from the
ponded water in the basin. Three existing monitoring wells were also used for water
level measurements (Section 3).
The pumping well (AP-6) was installed in the lower portion of the ash. The six
observation wells were installed in the ash material at a horizontal distance of
approximately 15 feet and 30 feet from AP-6. The observation wells included AP-6-L15
(screened in lower ash), AP-6-L30 (lower ash), AP-6-M15 (middle ash), AP-6-M30
(middle ash), AP-6-U15 (upper ash), and AP-6-U30 (upper ash) (Figure 2-2). The AP-6
well cluster is oriented in the shape of a fan with the pumping well at the vertex. Two of
the six observation wells were placed in a straight line north of the pumping well, and
two of the six observation wells were placed in a straight line oriented east of AP-6. The
remaining two observation wells were positioned between the north- and east -oriented
observation wells, northeast of AP-6. The positions of the wells had to be field -adjusted
due to constraints of safe drill rig access and positioning restricted to the temporary as..
basin roads. Three observation wells, approximately 15 feet from the pumping well,
were spread 11 feet apart from each other (AP-6-L15, AP-6-M15, and AP-6-M30). The
most distant three observations wells from pumping well AP-6 (AP-6-L30, AP-6-M30,
and AP-6-U3) were installed approximately 15 feet beyond the first arc of observation
wells for a total of 30 feet from pumping well AP-6. AP-6-L30 is approximately 18 feet
from AP-6-M30, which is approximately 21 feet from AP-6-U30. Well installation
activities occurred in August 2018. SynTerra provided field oversight of drilling
operations and well installations, which included documentation of field observations
and activities associated with boring advancement, and well installation activities.
Boring advancement, well installations, and well development were conducted by a
licensed North Carolina driller. A summary of well construction details for the
pumping and observation wells is included in Table 2-1.
A table summarizing well designations and monitoring frequencies is provided in
Table 2-2. Boring logs and well construction records are presented in Appendix B.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
2.1 Installation of Pumping and Observation Wells
Pumping and observation wells were installed at the AP-6 well cluster using rotary
sonic drilling techniques. Continuous cores were obtained at two boring locations (AP-
6-L15 and AP-6-L30) for lithologic description. Newly installed wells were completed at
the ground surface with concrete well pads, protective surface casings, well tags, and
locking caps in accordance with 15A North Carolina Administrative Code (NCAC) 02C
requirements.
Observation well designations of upper ash zone (upper), middle ash zone (middle),
and lower ash zone (lower) are based on saturated ash thickness at the test site. The
thickness of ash encountered at pumping well AP-6 was 68 feet bgs. The ash contact
with saprolite was not encountered during the drilling of the observation wells because
care was taken to not drill into the saprolite; therefore, the wells screened in the lower
ash zone were completed at a depth of 65 feet bgs. The wells were installed to allow at
least five feet of separation between well screens.
2.1.1 Ash Pore Water Pumping Well Installation
The ash pore water pumping well (AP-6) was drilled to approximately 68 feet
bgs. The well depth represents the bottom of the saturated ash column at this
location. The ash pore water pumping well was installed with the screen located
wholly within the ash layer and with no borehole connectivity to the underlying
saprolite.
The well was constructed of 6.0-inch ID, National Sanitation Foundation (NSF)
grade polyvinyl chloride (PVC) (ASTM D-1785-12) schedule 40 flush -joint
threaded casing terminating in a 10-foot-long, 0.010-inch machine -slotted PVC
screen, positioned several feet off the bottom of the borehole (to allow filter
material below the well screen).
A filter pack consisting of washed No. 1 grade silica sand was installed in the
boring annulus. The filter pack extended approximately five feet above the top of
the screen followed by a pelletized bentonite seal of approximately five feet in
thickness above the filter pack. The pellets were allowed to hydrate in
accordance with manufacturer's specifications before the remainder of the
annular space — from the top of the bentonite seal to near ground surface — was
filled with AQUAGUARD® bentonite grout.
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Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLQ Mayo Steam Electric Plant SynTerra
2.1.2 Ash Pore Water Observation Well Installation
Six ash observation wells were installed at the AP-6 well cluster location (Figure
2-2). These wells are located approximately 15 feet to 30 feet away from the
pumping well. Approximate distance from the pumping well for each
observation well is provided on Table 2-1.
Observation wells were installed in ash using a nominal six-inch sonic core
barrel. The wells were constructed of 2.0-inch ID, NSF -grade PVC schedule 40
flush joint threaded casing terminating in a five -foot -long 0.010-inch machine -
slotted pre -packed PVC screen.
After installation of the pre -packed well screen, the remaining boring annulus
was filled with clean, well-rounded, washed No. 1 grade silica sand. The filter
pack extended approximately three to five feet above the top of the screen. A
pelletized bentonite seal of approximately two to five feet in thickness was
placed above the filter pack. The pellets were allowed to hydrate before the
remainder of the annular space — from the top of the bentonite seal to near
ground surface — was filled with AQUAGUARDO bentonite grout.
2.2 Well Development
The newly installed wells were developed until wells yielded sustained clear discharge.
The main objective of the well development was to improve near -well permeability and
stability. Removal of the fine particles from the near -well area minimizes the effect of
well smear or caking potentially created during well installation.
Development included surging and high -volume water removal. Completion of
development was determined when turbidity remained below 10 Nephelometric
Turbidity Units (NTUs) after surging the well or at least 10 borehole volumes were
purged. After development, the wells were allowed to equilibrate for at least five days
prior to the collection of baseline water level data.
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3.0 PUMPING TEST IMPLEMENTATION
At the pumping well location (AP-6), a step -rate drawdown test (step test) was initially
conducted followed by a 36-hour constant rate pumping test. Additionally, a shorter 24-
hour constant rate pumping test was conducted in observation well AP-6-M15 to
evaluate flow and connectivity in the middle flow zone of saturated ash. Water levels in
observation and pumping wells were monitored and recorded by the use of data
logging pressure transducers. Field measurements of water quality parameters were
made during the 36-hour pumping test. Ash pore water samples were collected at the
start of the step -rate test and then daily throughout the 36-hour constant rate pumping
test for laboratory analysis of COIs as developed in the Site's CSA Update. Results
presented in this section provide assessment of ash pore water flow characteristics
within the ash basin.
3.1 Baseline Water Level Collection
Measurements of depth to water were collected from each of the monitoring wells
before and after the step test. Data logging pressure transducers (In -Situ LevelTroll 500
Vented) were programmed to collect measurements (in feet) of water above the probe at
one -minute intervals. Raw baseline data (collected from August 29 through September
6, 2018) is included in Appendix C. Graphs of baseline water level data are presented in
Appendix D.
Baseline data for the AP-6 cluster were collected in the following wells: AP-6, AP-6-L15,
AP-6-L30, AP-6-M15, AP-6-M30, AP-6-U15, AP-6-U30, ABMW-2, and ABMW-3. Water
level data (feet of water above the probe) for the AP-6 well cluster showed a slight
downward trend for the 72-hour period preceding the initiation of the step test.
Recharge and runoff from precipitation events on August 30, September 1, and
September 9 of 2018 may have affected water levels in each of the wells (Appendix D).
No precipitation was observed within 24 hours of the start of the pumping test on
September 10, 2018.
3.2 Pumping Tests Setup
A submersible pump (Franklin Electric, Series V (20 gpm rating)) was installed in the
pumping well with the intake set approximately two feet above the bottom of the well
for the 36-hour pumping test. A 12-volt submersible pump (Whale Mini -Purger (3.1
gpm rating)) was installed in AP-6-M15 for the 24-hour pumping test. The pump
discharge line was connected to a data logging flow meter (F1oCat MFE) and water
quality parameter flow -through cell. The discharge line for the pumping tests was
situated approximately 100 feet to the north of the well cluster with discharge into the
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ash basin area. The discharge area was deemed a sufficient distance from the AP-6
cluster to eliminate interference during the testing period.
A step -rate test was performed in AP-6 on September 6, 2018. A step -rate test is a single -
well pumping test designed to investigate the performance of a pumping well under
controlled variable discharge conditions. Results from the step -rate test are used to
determine an appropriate initial pumping rate (Qmax) for the subsequent constant rate
pumping tests. The appropriate pumping rate for the constant rate test is a flow that
would result in a drawdown of approximately 50 percent of the water column in the
pumping well.
Pressure transducer readings during the step test were collected from the pumping well
at intervals of one -minute during active pumping. Vented In -Situ LevelTroll 500
transducers were used; therefore, barometric compensation was not needed during data
analysis. Flow data from the flow meter were recorded at one -minute intervals during
step test pumping. A hydrograph of the step test for the pumping well is included in
Appendix E. Once the step test was completed, the well was allowed to fully recover
prior to the start of the constant discharge test.
A summary of flow rates, total drawdown, and anticipated Qmax is provided in Table
3-1.
3.3 Pumping Tests
A single, multi -day (72-hour) pumping test was planned in the AP-6 lower ash well.
However, a major storm event occurred on September 11, 2018 (36 hours after the
commencement of pumping). During the storm, strong winds caused damage to the
flow meter apparatus and field computer and the unsafe conditions required personnel
to abandon the test. An additional pumping test was added to the investigation. A
shorter constant rate (24-hour) pumping test in the middle flow zone of the ash in
observation well AP-6-M15 was conducted.
Analysis of the data was accomplished using AQTESOLV® Pro, Version 4.50. Data used
in the pumping test evaluation are provided in Appendix C. Data include transducer
data for baseline, step -rate test, constant rate test, and recovery periods, flow rate data
for each test, post -processing data, data analysis input, and AQTESOLV® files.
In addition to water level and flow data, water quality field indicator parameter data
[pH, specific conductance, temperature, DO, and ORP] were logged at one -minute
intervals during pumping. Flow rates, water levels, and water quality field indicator
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parameter data are provided in Appendix C. Ash pore water samples for laboratory
analysis that were collected during pumping are discussed in Section 4.0.
Manual water level readings, taken throughout the pumping tests in addition to
transducer data, are presented in Appendix F. An identical pumping discharge and
flow meter setup was maintained for the step test and constant rate pumping tests.
3.3.1 AP-6 36-Hour Pumping Test
The planned 72-hour constant rate pumping test in AP-6 was initiated at 09:17 on
September 10, 2018. Active pumping for the test was terminated on September
11, 2018, at 21:20 due to unsafe weather conditions. Therefore, the constant rate
test was conducted for a period of 36 hours. Based on negligible responses in
water levels to pumping at the latter stages of the pumping test, the shorter
testing time did not compromise the pumping test data for an appropriate
analysis. Pertinent information and observations of the pumping test are
summarized in Table 3-2.
The average flow rate logged during the test was 0.35 gpm. During the constant
rate pumping test, approximately 25 feet of drawdown was observed in the
pumping well.
The maximum drawdown in the observation wells was:
• Upper ash 16 feet from pumping well (AP-6-U15): 0.09 ft
• Upper ash 30 feet from pumping well (AP-6-U30): 0.08 ft
• Middle ash 16 feet from pumping well (AP-6-M15): 0.17 ft
• Middle ash 31 feet from pumping well (AP-6-M30): 0.18 ft
• Lower ash 17 feet from pumping well (AP-6-L15): 0.69 ft
• Lower ash 31 feet from pumping well (AP-6-L30): 0.41 ft
Hydrographs of the AP-6 36-hour pumping test are included in Appendix G.
3.3.2 AP-6-M15 24-Hour Pumping Test
After initial analysis of the AP-6 36 hour pumping test data, a shorter constant
rate pumping test in the middle ash flow layer was initiated. During AP-6-M15
well installation, field observations noted the middle layer of ash was comprised
of coarser -grained material and sustained higher flow rates during well
development. The 24-hour constant rate pumping test in AP-6-M15 was initiated
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at 14:17 on September 26, 2018. Active pumping for the test was terminated at
14:18 on September 27, 2018. Pertinent information and observations of the
pumping test are summarized in Table 3-2. The sole objective of the 24-hour test
was to measure the response to pumping in the middle ash layer; therefore,
water quality data were not collected.
The average flow rate logged during the 24-hour test was 0.56 gpm. During the
middle ash pumping test, approximately 21 feet of drawdown was observed in
the pumping well (AP-6-M15).
• Upper ash 11 feet from pumping well (AP-6-L15): 0.04 ft
• Upper ash 21 feet from pumping well (AP-6-U3O): 0.05 ft
• Middle ash 15 feet from pumping well (AP-6-M30): 0.63 ft
• Lower ash 16 feet from pumping well (AP-6): 0.21 ft
• Lower ash 11 feet from pumping well (AP-6-L15): 0.19 ft
• Lower ash 19 feet from pumping well (AP-6-L30): 0.17 ft
Hydrographs of the AP-6-M15 24-hour pumping test are included in Appendix
H.
3.4 Post -Processing of Recorded Data
This section describes post -processing methodology for removing the effects of longer -
duration water level increases or decreases that are not the result of pumping, such as
long-term water level trends and/or precipitation events. Barometric effects on the
water table due to the barometric efficiency of the water -bearing units were considered
during trend and precipitation correction. Changes due to barometric effects on the
water table, in general, could not be differentiated from changes in water level due to
precipitation and long term trends. No significant fluctuations in water levels due to
barometric effects on the water table were observed in the data sets. Hydrographs
showing barometric pressure, water level (feet of water over probe), and precipitation
are included in Appendix I.
3.4.1 Pumping Test Data Post -Processing
Wells affected or potentially affected by pumping tests were further evaluated
for precipitation influence and water level trends. As outlined on Table 3-3, no
post -processing was applied to the water level data.
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3.4.2 Precipitation Post -Processing
No significant rain events took place during the pumping portion of the 36-hour
pumping test. However, a major rain event took place during the recovery phase;
therefore, the recovery phase was not analyzed.
A rain event took place during the 24-hour pumping test. Additionally, the flow
was not steady during the test due to field equipment difficulties (variations due
to electrical power supply effects). Therefore, the 24-hour pumping test was not
analyzed using solutions in AQTESOLV®, but field observations concerning the
connectivity between the ash layers were noted.
3.4.3 Trends
Residual drawdown was not analyzed due to a major rain event that took place
during the recovery period after the 36-hour pumping test. Therefore, no trend
corrections were applied to water level data.
Water level data obtained from pressure transducers were truncated after 36
hours once the rain event began. In addition, to reduce the resolution and noise
from the pressure transducer data, the water levels were averaged every 15
minutes for the duration of the 36-hour test.
3.4.4 Data Evaluation
After data post -processing, the water level data was input into AQTESOLV° for
analysis. A summary of data used in the analysis is included as Table 3-4.
Additional data input included a default value of one foot for the aquitard
thickness to obtain a best fit during curve matching because the actual thickness
is unknown.
The Hantush (1961) solution (individual) and the Hantush-Jacob (1955) solution
(composite) in AQTESOLV® were used to analyze the pumping test data. The
solutions assume that a constant head source is located near the pumping well
with a low hydraulic conductivity layer separating the two. Ash basin boring
logs indicate that there are stratified lenses of fine-grained material throughout
the ash, including a relatively thick (three feet) layer between the middle and
upper ash pumping wells. The upper ash layer had no to response during the 24-
hour and 36-hour pumping tests.
To obtain a better curve fit, a constant head boundary (recharge boundary) was
added into the AQTESOLV® model to account for the influence of a surface
water body (free ponded ash basin water) or a lateral boundary (higher K lens)
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that is hydraulically connected to the ash pore water. Drawdown curve plots that
are affected by a recharge boundary typically show a drawdown plateau with
derivative curve plunging toward zero at later time. The plateau is the result of
the water flowing from the recharge boundary to the pumping well, which limits
expected drawdown. While fitting the solution to the field data, a constant head
boundary approximately 40 feet away from the pumping well (AP-6) was noted.
Because the closest constant head boundary (free ponded ash basin water) is
approximately 385 feet from the pumping well, it is plausible that a lateral
boundary was reached during the pumping test within the lower ash.
The following graphic is a drawdown curve for the lower ash well, AP-6-L15,
showing the drawdown plateau and derivative curve (shown in red) plunging to
zero at later time (shown with boundary conditions added) during the 36-hour
ash pumping test. The type curve indicates the presence of a recharge boundary
that is assumed to be a lateral boundary. In the solution, the lateral boundary
was placed 40 feet from the AP-6 well cluster.
06
0.64
0.16
0
AP-6 L15 Ash Pumping Test
❑
L
❑
❑
❑
❑
❑
o
00
°
❑ qp
❑
tf
°❑
0.001 0.01 0.1 1. 10.
Time, th2 (minlft2)
Obs. Wells
❑ AP-6 L 15
Agufer Model
Leaky
Solulion
Hantush
Parameters
T = 3.255 ft2lday
S=0,002201
V' = 1.549
= 1.0E-5
r1W = 0.
6" = 0,
Drawdown during the 36-hour ash pumping test was observed in AP-6-L15, AP-
6-L30, AP-6-M15, and AP-6-M30. As outlined in Section 3.3.1, drawdown was
observed as occurring mostly in the lower ash observation wells. Drawdown
observed in AP-6-M15 located 15 feet from the pumping well was 25 percent of
the drawdown observed in AP-6-L15 (15 feet from pumping well) and
approximately 41 percent of the drawdown observed in AP-6-L30 (lower ash, 30
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feet from pumping well). Within the lower ash, the pumping well had an overall
drawdown of 25 feet. No response in the upper ash wells was observed. In the
24-hour middle zone ash pumping test, drawdown was observed in the AP-6-
M30, AP-6, AP-6-L15, and AP-6-L30. Drawdown observed in AP-6, located 16
feet from the pumping well, was 33 percent of the drawdown observed in AP-6-
M30 (15 feet from pumping well). Drawdown in AP-6-L15 located 11 feet from
the pumping well was 30 percent of the drawdown in AP-6-M30 and drawdown
in AP-6-L30 (19 feet from pumping well) was 30 percent of AP-6-M30. No
response was observed in the upper ash wells.
Vertical hydraulic gradients were evaluated using manual and pressure
transducer water level data collected before, during, and after pumping tests,
where data were available. Graphical plots of the vertical gradient data are
presented in Appendix J. The vertical hydraulic gradient was calculated as the
difference in hydraulic head between well pairs divided by the vertical distance
between the middle of the screens of the well pairs. Well pairs were selected by
proximity and well screen elevations. Positive vertical hydraulic gradients
indicate downward flow gradients and negative vertical hydraulic gradients
indicate upward flow gradients.
Approximate vertical hydraulic gradients between ash well pairs during periods
with no pumping ranged from -0.009 to 0.038 with an overall average of
approximately zero. Average vertical hydraulic gradient magnitudes for well
pairs were generally less than 0.006 during periods without pumping. One
exception was the average vertical hydraulic gradient magnitude between well
pair AB-6-M15 and AB-6-L15 during baseline data collection. The average
vertical gradient between AB-6-M15 and AB-6-L15 during baseline data
collection was 0.013. During other periods without pumping the average vertical
hydraulic gradient between AB-6-M15 and AB-6-1,15 ranged from -0.001 to 0.001.
Excluding the exceptional value, average vertical hydraulic gradients ranged
from -0.006 to 0.002 during periods without pumping with an average of-0.002.
Pumping generally increased the magnitude of the hydraulic vertical gradients
between well pairs. The direction of increase (more positive or negative) was
dependent upon the location/elevation of the well pair screens relative to the
location/elevation of the pumping well screen.
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3.5 Summary of Test Results
The 36-hour constant rate pumping test was analyzed using the Hantush (1961) and
Hantush-Jacob (1955) solutions for a pumping test in a leaky aquifer (AQTESOLV®
v4.5). These solutions were selected based on the observations of stratification (due to
sluicing) within the ash and observed responses to pumping (or lack thereof) in wells
screened within the upper ash. The Hantush leaky aquifer solution assumes confined
flow in an aquifer system with leakage through a leaky confining layer (aquitard).
Boring logs (Appendix B) from the newly installed wells indicate interbedded layering
of fine-grained and coarse -grained ash, which reflects historical sluicing events within
the ash basin. Sluicing created a depositional environment whereby the ash was
deposited like a delta, characterized by intermittent channels causing complex
depositional sequences. These intermittent channels cause interbedded layering of fine-
grained and coarse -grained ash.
Little to no response was observed during the pumping test in the fine ash layers, which
tend to function as aquitards. In the lower ash wells, which correspond to the pumping
interval, observed drawdown was a magnitude higher than in the medium ash wells.
The leaky -confined system is also supported by increased responses to precipitation in
extended baseline data for the upper ash wells, compared with data for wells screened
in lower ash (Appendix D). Due to the interbedded layers of fine-grained and coarse -
grained ash observed in boring logs, and the observation that the ash is acting as a semi -
confined system, the Hantush solutions are appropriate.
The aquifer thickness of the AQTESOLV® model was constrained to the total water
column height (saturated thickness) for the deepest observation well at the test location
within ash. The aquifer thickness of the AQTESOLV® model for the ash pumping test
was constrained by the deepest saturated ash thickness observed at the test
location. Drawdown data were not weighted for the test data. Curve matches were
initially matched using automated matching within AQTESOLV° and then modified
manually to help obtain a best fit. Each curve was matched individually using flow
rates obtained from the pumping well and observation (water level) data obtained from
the subject well. Observation data was collected from the pumping well but was not
used for parameter estimation.
Plots of final type curve matches are presented in Figures 3-1 through 3-5. A summary
of test durations, average flow rates, affected wells and observed drawdowns, and other
pertinent data is provided in Table 3-2. Analysis of pumping drawdown curves
indicates T values ranged from 3.3 ftz/day to 94 ftz/day, with a composite solution of
40.3 ft2/day. Individual S values ranged from 0.0017 to 0.028, with a composite solution
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of 0.01. The semi -confining unit (aquitard) is characterized by the ratio of the vertical
conductivity, K, to the thickness, U. The individual ratios ranged from 1.3 x 10-2 day-' to
2.8 x 10-2 day' in the ash and the composite solution was 1.1 x 10-2 day'. The average ash
K, which is the ratio of transmissivity to the aquifer thickness, ranged from 0.05 ft/day
to 1.5 ft/day, with a composite solution of 0.6 ft/day. Summaries of analytical solutions
for transmissivity and storativity are presented in Table 3-5.
Transmissivity, hydraulic conductivity, and storativity values are slightly lower within
the lower ash zone as compared with values within the middle ash zone. These
differences are attributed to historic sluicing operations, which created laminar
deposition of coarse -grained and fine-grained ash layers in the ash basin delta. Thus,
vertical flow within the basin is limited by fine-grained materials (fly ash) interbedded
with coarser -grained materials (bottom ash). Other general observations made
regarding response to pumping at each test location include the following:
36-Hour Lower Ash Flow Zone Pumping Test (AP-6)
• Response to pumping was observed in AP-6-L15, AP-6-L30, AP-6-M15, and AP-
6-M30.
• Upper ash wells had no response during the pumping test.
24-Hour Middle Ash Flow Zone Pumping Test (AP-6-M15)
• Response to pumping was observed in AP-6, AP-6-L15, AP-6-L30, and AP-6-
M30.
Water level data was not analyzed in AQTESOLV® due to variations in flow rate
and a rain event during test.
Raw data used in the pumping test evaluation are provided in Appendix C. Raw data
includes transducer data for baseline, step test, constant rate test, and recovery periods,
flow rate data for each test, post -processing data, data analysis input, AQTESOLV® files,
and water quality field parameters data.
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4.0 WATER QUALITY MEASUREMENTS
AND ANALYTICAL RESULTS
During the 36-hour lower ash pumping test, water quality field parameters were
monitored and ash pore water samples were collected for analysis of CAMA
parameters. Water quality field parameters were collected at one -minute intervals
during the 36-hour constant rate test. Graphs of field parameter readings for specific
conductance, DO, ORP, pH, and temperature are presented in Appendix K. A summary
of minimum values, maximum values, average values, and standard deviations of the
water quality field parameters are presented in Table 4-1. Ash pore water samples were
collected for laboratory analysis of CAMA parameters at a frequency of one per day.
The samples were used to evaluate the potential flux in water chemistry due to
pumping over time. Water chemistry may change during long-term dewatering of
saturated material, which might change the redox conditions and affect mobilization of
non -conservative (less mobile) COIs. A summary of the ash pore water analytical
results is presented in Table 4-2. An electronic copy of the laboratory reports and chain
of custody forms is provided in Appendix L.
4.1 Water Quality Field Parameter Data
Water quality field parameter data were measured using an in -line flow -through cell on
the discharge piping. Water quality data were only measured during the 36-hour
pumping test. Average specific conductivity in the ash pore water was 511 µS/cm.
Specific conductivity values initially decreased sharply at the start of the test then
increased before stabilizing near the end of the test.
The average DO value in the ash pore water was 0.56 mg/L. As expected, DO levels
dropped quickly and were relatively stable during the entire test.
The average ORP values were-221mV. ORP values initially dropped quickly then
slowly decreased indicating an increasingly reduced environment.
Measured pH values were stable throughout each test, as noted by low standard
deviations in the data set. The average pH value for the ash pore water was 7.8 S.U.
4.2 Water Quality Analytical Data
Ash pore water samples were collected for laboratory analysis of inorganic CAMA
parameters from an in -line valve preceding the water quality flow -through cell. The
first sample for each test was collected at the start of the step tests for baseline results.
Subsequent samples were collected each day of the constant rate pumping test. The
analytical data (Table 4-2) were used to assess potential water quality and geochemical
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fluctuations that may result from continuous pumping during dewatering of saturated
material.
Analytical results (Table 4-2) indicate that AP-6 appears to be recharged by ash pore
water as the general geochemical signatures match that of ash more than the underlying
saprolite groundwater (based on historical groundwater quality data). As described in
Section 4.1, field parameters support this conclusion as the water became increasingly
reduced during pumping.
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5.0 CONCLUSIONS
Conclusions are based on results of the pumping test activities and subsequent data
evaluation. Conclusions include:
• Observations of ash within the basins from core samples indicate interbedded
fine-grained fly ash and coarse -grained bottom ash layers.
• Analysis of pumping drawdown curves indicates the ash is acting as a semi -
confined (leaky) system with one or more of the fine ash layers acting as
aquitards, especially in the lower ash layer.
• Analysis of pumping drawdown curves indicates the middle ash zone is more
permeable than the upper and lower ash layers and is characteristic of a semi -
confined (leaky) system.
• Flow within ash pore water at the tested location is predominantly horizontal.
Hydraulic media properties, including transmissivity, hydraulic conductivity, and
storativity, are lower within the lower ash zone as compared with values from the
middle ash zone.
• The average T value from individual solutions in the ash was 38 ftz/day. The
composite solution has a T value of 40.3 ft2/day.
• The average S value from the individual solutions and composite solution in the
ash was 0.01.
• The average ratio of the vertical conductivity, K, to the thickness, b', in the
individual tests was 2.3 x 10-2 day-' in the ash. The composite solution has an
average ratio of Kto b' of 1.1 x 10-2 day' in the ash.
• The average K from the individual and composite solutions was 0.6 ft/day in the
ash.
Based on observations of water level data made during the pumping tests, horizontal
flow is likely the dominant component of flow within the ash basin and the fine-grained
layers in the ash are acting like semi -confined units.
Water level changes during the pumping tests had minimal effect on water quality field
parameters. Water quality field parameters and concentrations of COIs within the ash
pore water remained relatively consistent, with only minor fluctuations throughout the
pumping test.
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Results from the pumping test evaluation will be used to support, refine, or modify
assumptions in the groundwater flow and transport and geochemical models. The
updated models will be included in the updated Corrective Action Plan (CAP).
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6.0 REFERENCES
Dougherty, D.E and D.K. Babu, 1984. Flow to a partially penetrating well in a double
porosity reservoir, Water Resources Research, vol. 20, no. 8, pp. 1116-1122.
Hantush, M.S. and C.E. Jacob, 1955. Non -steady radial flow in an infinite leaky aquifer, Am.
Geophys. Union Trans., vol. 36, pp. 95-100.
Hantush, M.S., 1961. Aquifer tests on partially penetrating wells, Jour. of the Hyd. Div.,
Proc. of the Am. Soc. of Civil Eng., vol. 87, no. HY5, pp. 171-194.
SynTerra, September 2, 2015; Comprehensive Site Assessment Report — Mayo Steam Electric
Plant.
SynTerra, December 1, 2015, Corrective Action Plan Part 1 Mayo Steam Electric Plant.
SynTerra, February 29, 2016, Corrective Action Plan Part 2 - Mayo Steam Electric Plant.
SynTerra, July 7, 2016, Comprehensive Site Assessment Supplement 1 —Mayo Steam Electric
Plant.
SynTerra, October 31, 2017, Comprehensive Site Assessment Update — Mayo Steam Electric
Plant.
Theis, C.V., 1935. The relation between the lowering of the piezometric surface and the rate and
duration of discharge of a well using groundwater storage, Am. Geophys. Union Trans.,
vol. 16, pp. 519-524.
Page 6-1
P: \ Duke Energy Progress.1026\ 105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test
Report\ FINAL FOR DUKE January 28 2019 \ FINAL Mayo Ash Basin Pumping Test Report.docx

Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant
FIGURES
SynTerra

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148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA
PHONE [phone]
LMINGTON
DRAWN BY: ANTWAN ROBINSON DATE:1/22/2019
PROJECT MANAGER: JERRY WYLIE CONTOUR INTERVAL: 10 FOOT
GRAPHIC SCALE
1000 0 1000 2000
www.synterracorp.com
LA.

AP-6-L30 AP-6-M30
AP-6-L15 AP 6 M15
AP-6 AP-6-U30
AP-6-U 15
ASH BASIN
ABMW-2BRL ABMW 2
® ABMW-3S
ABMW-3
APPROXIMATE ASH BASIN WASTE BOUNDARY
LEGEND
O FAP-6
PUMPING WELL IN ASH PORE WATER
O AP 6 L15
OBSERVATION WELL IN ASH PORE WATER
ABMW 3
MONITORING WELL IN ASH PORE WATER
ABMW 3S
MONITORING WELL IN SHALLOW ZONE
9 ABMW 4D
MONITORING WELL IN THE DEEP ZONE
ABMW 4BR
MONITORING WELL IN THE BEDROCK ZONE
ABMW 4
MONITORING WELL ABANDONED
SOURCE:
FEBRUARY 5, 2017 AERIAL PHOTOGRAPH OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL
AT http://data.nconemap.com/geoportal/catalog/raster/download.page
GRAPHIC SCALE
100 0 100
IN FEET
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
Terra
www.synterracorp.com
DRAWN BY: DATE 01/08/2019
NAG R: JERKIN
PROJECT MANAGER: JERKY WYL
LAYOUT: FIG 2-1 (AP-6 TEST WELLLOC)
M
FIGURE 2-1
ASH BASIN PUMPING TEST WELL LOCATIONS
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS
ROXBORO, NORTH CAROLINA

` r
AP-6-L30 AP 6 M30
O O
AP 6 L15 O AP-6-M15
AP 6
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oil
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ASH BASIN
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O AP 6 L15 OBSERVATION WELL IN ASH PORE WATER
SOURCE:
FEBRUARY 5, 2017 AERIAL PHOTOGRAPH OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL
AT http.//data.nconemap.com/geoportal/eatalog/raster/download.page
3o GRAPHICSCALE
o60
FIGURE 2-2
IN FEET AP-6 WELL CLUSTER LOCATION
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601 MAYO STEAM ELECTRIC PLANT
PHONE terrac rp.com DUKE ENERGY PROGRESS
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Terra PRAWCTMANA MANAGER:
DATE 01/08/2019 ROXBORO, NORTH CAROLINA
PROJECT MANAGER: JERKY WYLIE
LAYOUT: FIG 2-2 (AP-6 WELL CLUSTER)
01/10/201910:53 AM P:\Duke Energy Pro ress.1026 105. Ma o ASh Basin GW Assessment Plan\psh Basin Pumping Test h Basin Pumping TeSt Re ortFI ureS\DE MAYO PUMP TEST.dw

0.8
Jbs Wells
o AP-6 L15
Aquifer Model
Leaky
0.64
Solution
f'WLLM Uw Hantush
Parameters
T = 3.255 ft2lday
S = 0.002201
0.48
rIB' = 1.549
$
R' = 1.0E-5
r/B" = 0.
E
9" = 0.
m
U
(S7
d
N_
❑
0.32
0.16
0.
0A01
0.01 0.1
1- 10.
Time, tlr2 (minlft2)
148 RIVER STREET, SUITE 220
FIGURE 3-1
GREENVI SOUTH CAROLINA 29601
4-4
PHONE [phone]
AP-6-L15 TYPE CURVE SOLUTION
www.synterracorp.com
36-HOUR ASH BASIN PUMPING TEST
MAYO STEAM ELECTRIC PLANT
DRAWN BY: C.BRUCE DATE: NOVEMBER2018
synTerrd
PROJECT MANAGER: J. WYLIE
LAYOUT:
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
P:10uke Energy Pragw.10261105. Mayo Ash Basin GW Assessment Plamk h Basin Pumping TestlAsh Basin Pumping Test RepotFigmes

0.5
0.4
AP-6 L30 36 Hour Pumping Test
n
m
f= ® In ❑
Obs. Wells
❑ AP-6 L30
Agurfer Model
Leaky
SolUtian
Hantush
UV
Parameters
0
T = 7,297 ft2fday
❑
S = 0,001717
0.3
o
rfB' = 1.325
rfB" = 0.
E
a" = 0.
U
Q
N
MMM
01 o
❑
0_
0.01 0.1
Tirne. tfr2 (minlft2)
1 r'
148 RIVER STREET, SUITE 220
FIGURE 3-2
1SOUTH CAROLINA 29601
AP-6-L30 TYPE CURVE SOLUTION
41P
PHONE [phone]
PHONE 4-4
www.synterracorp.com
36-HOUR ASH BASIN PUMPING TEST
MAYO STEAM ELECTRIC PLANT
DRAWNC. BRUCE DATE NOVEMBER2018
synTerrd
PROJECT MANAGER: J. WYLIE
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
LAYOUT:
PMA. E.my P a ...10261105. Mayo Ash Basin GW A,—,wt Pl,0,h Basin Pumpi,g TeSPAsh Basin Pumping Test R,p,tF,q-,,

[IPA
■
,0-12
E
C)
C-
0
❑ 0-08
0.04
0.PL—
0.01
AP-6 M 15 Pumping Test
❑
0
13
0
0
0.1
Time, t1r2 (m1n1ft2)
0
0
v
abs. Wells
o AP-6 PM115
Aquifer Model
Leaky
Hantush
Parameters
T = 93.87 ft2fday
S = 0.02844
rfB' = 0.2689
f3' =1.004E-5
rfB"=0.
f" = 0.
4 148 RIVER STREET, SUITE 220 FIGURE 3-3
1p GREENVILLE, SOUTH CAROLINA 29601 PHONE [phone] AP-6-M15 TYPE CURVE SOLUTION
www.synterracorp.com 36-HOUR ASH BASIN PUMPING TEST
synTerrd DRAWN BY C. BRUCE DATE NOVEMBER2018 MAYO STEAM ELECTRIC PLANT
PROJECT MANAGER: J. WYLIE
LAYOUT: DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
PGuke Energy Progress-10261105- Meyo A,h Besin GW Assessment PIen1A,h Basin Pumping Test,A h Besin Pumping Test Rep,rl Flg,res

0.2
0.16
F 0.12
❑ 0_08
0.04
AP-6 M30 Pumping Test
0
M
001 0.1 1
Time, tfr2 (minlft2)
o,
o0
10.
❑bs. Wells
❑ AP-6 M30
Aquifer Model
Leaky
Solution
Hantush
Parameters
T = 49.51 ft2lday
S = 0.008837
r!B' = 0.6556
R' = 1.0E-5
r!B" = 0_
R" = 0.
148 RIVER STREET, SUITE 220
FIGURE 3-4
14-421-SOUTH CAROLINA29601
GREEN41P
AP-6-M30 TYPE CURVE SOLUTION
PHONE [phone]
PHONE
www.synterracorp.com
36-HOUR ASH BASIN PUMPING TEST
DRAWNC. BRUCE DATE NOVEMBER2018
MAYO STEAM ELECTRIC PLANT
synTerrd
PROJECT MANAGER: J. WYLIE
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
LAYOUT:
PMA. E.my P a ...10261105. Mayo Ash Basin GW A,—,wt Pl,0,h Basin Pu,oq TeSPAsh Basin
Pumping Test R,p,tFi,-,,

i_ ;_ 4
$ 048
0
0.001
0.01 0.1 1
Time, tfr2 (minfft2)
M
Obs. Wells
d AP-6 L 15
❑ AP-6 L30
r- , .5
❑ AP-6 M30
Aquifer Model
Leaky
Solution
Hantush-Jacob
Parameters
T = 40-3 ft2lday
S = 0.00928
1 fB = 0.01646 ft-1
Kz/Kr = 0A397
b = 64-65 ft
148 RIVER STREET, SUITE 220
1SOUTH CAROLINA 29601
FIGURE 3-5
AP-6 COMPOSITE TYPE CURVE SOLUTION
PHONE 4-4
PHONE [phone]
www.synterracorp.com
36-HOUR ASH BASIN PUMPING TEST
DRAWN BY: C. BRUCE DATE: NOVEMBER 2018
MAYO STEAM ELECTRIC PLANT
synTerm
PROJECT MANAGER J. WYLIE
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
LAYOUT:
PMA. E.qy P a ...10261105. Mayo Ash Basin GW A,—,wt Pl,0,h Basin P-oq TeSPAsh Basin
Pumping Test R,p,tF,q-,,

Ash Basin Pumping Test Report January 2019
Duke Energy Progress, LLC, Mayo Steam Electric Plant
TABLES
SynTerra

TABLE 2-1
WELL CONSTRUCTION DETAILS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Identification
Northing
Easting
TOC Elevation
Above Sea
Level
(NAVD 881)
Ground Surface
Elevation Above
Sea Level
(NAVD 881)
pp-6 24-Hour Pump Test
AP-6-M15 24-Hour Pump Test
Monitoring
Zone
Base of Ash
Borehole
Diameter
(In)
Well
Diameter
(In)
Total Well Depth
Screen
Length
(ft)
Top of Filter
Sand Pack
Top of
Bentonite Seal
Well
Purpose
Distance from
AP-6 (ft)
Well
Purpose
Distance from
AP-6 -M15 (ft)
Depth
(ft bgs)
Elevation
(NAVD 881)
Depth
(ft bgs)
Elevation
(NAVD 881)
Depth
(ft bgs)
Elevation
(NAVD 881)
Depth
(ft bgs)
Elevation
(NAVD 881)
AP-6 WELL CLUSTER
AP-6
1013194.33
2030385.13
488.76
486.57
Pumping
NA
Observation
15.79
Lower Ash
68.0
418.57
13
10
6
65.19
421.37
10
50.5
436.07
45.0
441.57
AP-6-L15
1013211.00
2030383.61
489.18
486.33
Observation
16.73
Observation
10.93
Lower Ash
68.0
418.33
6
2
65.62
420.72
5
57.5
428.83
52.0
434.33
AP-6-L30
1013224.97
2030385.53
489.18
486.11
Observation
30.64
Observation
19.44
Lower Ash
68.0
418.11
6
2
65.55
420.55
5
57.0
429.11
45.0
441.11
AP-6-M15
1013207.44
2030393.94
489.51
486.65
Observation
15.79
Pumping
NA
Middle Ash
68.0
418.65
6
2
40.87
445.78
5
33.0
453.65
28.0
458.65
AP-6-M30
1013219.60
2030402.87
489.04
486.31
Observation
30.87
Observation
15.09
Middle Ash
68.0
418.31
6
2
41.86
444.45
5
34.0
452.31
28.5
457.81
AP-6-U15
1013198.20
2030400.24
489.52
486.65
Observation
15.59
Observation
11.18
Upper Ash
68.0
418.65
6
2
18.51
468.14
5
10.5
476.15
6.0
480.65
AP-6-U30
1013202.15
2030414.46
489.46
486.56
Observation
30.35
Observation
21.19
Upper Ash
68.0
418.56
6
2
18.44
468.12
5
10.5
476.06
6.0
480.56
AP-6 OBSERVATION WELLS (BEYOND TEST LOCATION)
ABMW-2 (Existing)
1012778.26
2030477.81
492.90
490.68
Observation
426.26
Observation
437.29
Ash
34.5
456.18
6
2
40.21
450.47
5
32.6
458.08
28.8
461.88
ABMW-3 (Existing)
1012714.21
2030856.72
500.17
497.34
Observation
672.99
Observation
676.34
Ash
40.0
457.34
6
2
40.65
456.69
5
33.2
464.14
29.2
468.14
ABMW-3S (Existing)
1012718.52
2030858.24
500.30
497.33
Observation
671.00
Observation
674.26
Saprolite
40.0
457.33
6
2
60.19
437.14
10
48
449.33
46
451.33
ABMW-4X
NS
NS
NS
NS
Observation
-850.00
NA
NA
Ash
57.0
NS
6
2
54.00
NS
5
44.5
NS
40
NS
Prepared by: PWA Checked by: ENK
Notes:
Total depths and well construction details were determined based on field observations.
Bold - Indicates wells installed in August 2018
1 Elevations in feet are based on North American Vertical Datum of 1988.
z "Total Well Depth" is the depth to the bottom of the screened interval, as measured during well installation.
3 "Coordinates based on field measurements from adjacent surveyed wells (well has not been surveyed).
bgs - Below ground surface
in -Inches
ft - Feet
NA - Not applicable
NS - ABMW-4X has not been surveyed.
TBD -to be determined
*Temporary steel casing left in -place during well installation
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 2-1 Well Construction Details Page 1 of 1

TABLE 2-2
SUMMARY OF WELL DESIGNATIONS AND MONITORING FREQUENCIES
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Well ID
Baseline
Data Collection
AP-6 36-Hour Test
AP-6-M15 24-Hour Test*
Transducer
Installed
Manual Water
Level Readings
Frequency
Step -Rate
Test
Pumping
Test
Pumping
Test
AP-6
X
X
X
X
X
2 Hours
AP-6-L5
X
X
X
X
2 Hours
AP-6-1-30
X
X
X
X
2 Hours
AP-6-M15
X
X
X
X
2 Hours
AP-6-M30
X
X
X
X
2 Hours
AP-6-U15
X
X
X
X
2 Hours
AP-6-U30
X
X
X
X
2 Hours
ABMW-2
X
X
X
X
2 times per day
ABMW-3
X
X
X
X
2 times per day
ABMW-3S
X
X
2 times per day
ABMW-4X
X
X
2 times per day
Prepared by: PWA Checked by: ENK
Notes:
* - A step -rate test was not conducted for the AP-6-M15 24-Hour Pumping Test
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 2-2 Well Designation
and Monitoring Freq-MayoTable 2-2 Well Designation and Monitoring Freq-Mayo Page 1 of 1

TABLE 3-1
SUMMARY OF STEP -RATE TEST RESULTS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Identification
Date
Start Time
Stop Time
Flow Rate
(gpm)
Observed Water Level
(ft of Water Over Probe)
Total Observed Drawdown
(ft of Water)
Qmax
(50% of Saturated Thickness)
AP-6
Static
9/6/2018
NA
15:36
0.0
54.92
2.64'
0.5 gpm
Step 1
15:36
17:02
0.4
34.17
20.75
Step 2
17:02
18:36
0.8
17.03
37.89
Notes•
1 - System check resulted in 2.64 feet of drawdown prior to step test.
ft - Feet
gpm - Gallons per minute
NA - Not applicable
Prepared by: PWA Checked by: ENK
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 3-1 Summary of Step
Test Results -Mayo Page 1 of 1

TABLE 3-2
SUMMARY OF PUMPING TEST OBSERVATIONS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Pumping Test
Pumping Start
and Termination
(Date, Time)
Pumping
Duration
(hours)
Average Flow
Rate
(gpm)
Wells Affected by Pumping Test
Observed
Drawdown
(ft)
Distance from Pumping
Well
(ft)
AP-6
Test Start
9/10/18 09:17
36
0.35
AP-6 (Pumping Well)
24.94
--
AP-6-1-15
0.69
17
AP-6-1-30
0.41
31
Test Terminated
9/11/2018 21:20
AP-6-M15
0.17
16
AP-6-M30
0.18
31
AP-6-U15
0.09
16
AP-6-U30
0.08
30
AP-6-M15
Test Start
9/26/18 14:17
24
0.56
AP-6
0.21
16
AP-6-L15
0.19
11
AP-6-1-30
0.17
19
Test Terminated
9/27/2018 14:18
AP-6-M15 (Pumping Well)
20.63
--
AP-6-M30
0.63
15
AP-6-U15
0.04
11
F- AP-6-U30
0.05
21
Prepared by: PWA Checked by: ENK
Notes:
ft - Feet
gpm - Gallons per minute
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 3-2 Summary of
Pumping Test Observations -Mayo Page 1 of 1

TABLE 3-3
SUMMARY OF POST PROCESSING DATA
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Pump Test
AP-6 36-HOUR PUMPING TEST
AP-6
Observation Well
AP-6-L15
AP-6-L30
AP-6-M15
AP-6-M30
(Pumping Well)
Slope Correction
No
No
No
No
No
Precipitation
No
No
No
No
No
Correction
Manual Water
No
No
No
No
No
Levels
Prepared by: PWA Checked by: RAG
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 3-3 Post Processing
Summary -Mayo Page 1 of 1

TABLE 3-4
SUMMARY OF AQTESOLV INPUT VALUES
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Description
AQTESOLV
Parameter
AP-6
AP-6-1-15
AP-6-1-30
AP-6-M15
AP-6-M30
AP-6-U15
AP-6-U30
36-HOUR TEST
Type of Well
Pumping
Observation
Observation
Observation
Observation
Observation
Observation
Type of Aquifer
Leaky
Confined
Leaky
Confined
Leaky
Confined
Leaky
Confined
Leaky
Confined
Leaky
Confined
Leaky
Confined
Aquifer Unit
Ash
Pore Water
Ash
Pore Water
Ash
Pore Water
Ash
Pore Water
Ash
Pore Water
Ash
Pore Water
Ash
Pore Water
Depth to Water Table from TOC (ft)t
5.54
7.33
7.38
7.63
7.36
7.79
7.77
Height of TOC from Ground Surface (ft)
2.20
2.84
3.08
2.86
2.74
2.87
2.90
Static Water Column depth (ft bgs)
3.34
4.49
4.30
4.77
4.62
4.92
4.87
Total Well Depth (ft bgs)
65.19
65.62
65.55
40.87
41.86
18.51
18.44
Depth from Water Table to Top of Screen (ft)
d
51.85
56.13
56.25
31.10
32.23
8.59
8.73
Saturated Thickness (ft)
b
64.65
63.52
63.69
63.23
63.37
63.08
63.29
Screen Length (ft)
L
10
5
5
5
5
5
5
Kv/Kh Ration
Kv/Kh
1
1
1
1
1
1
1
Well Diameter (in)
6.0
2.0
2.0
2.0
2.0
2.0
2.0
Radius of Well Casing (ft)
r(c)
0.250
0.083
0.083
0.083
0.083
0.083
0.083
Diameter of Borehole (in)
13.00
6.00
6.00
6.00
6.00
6.00
6.00
Radius of Well (ft)
r(w)
0.542
0.250
0.250
0.250
0.250
0.250
0.250
Prepared by: PWA Checked by: RAG
Notes:
'Depth to water measurements taken prior to start of 36-hour pumping test on 9/10/18.
2 Hydraulic Conductivity Anisotrophy Ratio
bgs - Below ground surface
ft - Feet
in - Inches
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test
Report\Tables\Table 3-4 Summary of AQTESOLV Input Values
Page 1 of 1

TABLE 3-5
SUMMARY OF ANALYTICAL SOLUTIONS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
AP-6 36-HOUR PUMPING TEST
Identification
Solution
Transmissivity
(ft2/day)
Storativity
Aquitard
Properties)
(K,/b,)
(day-')
Conductivity2
K=T/b
(ft/day)
AP-6-L15
Hantush
3.3E+00
2.2E-03
2.8E-02
5.0E-02
AP-6-00
Hantush
7.3E+00
1.7E-03
1.3E-02
1.1E-01
AP-6-M15
Hantush
9.4E+01
2.8E-02
2.7E-02
1.5E+00
AP-6-M30
Hantush
5.0E+01
8.8E-03
2.2E-02
7.7E-01
Average Individual Values
3.8E+01
1.0E-02
2.3E-02
6.0E-01
r__Composite Solution Values
4.0E+01
1.0E-02
1.1E-02
6.0E-01
Prepared by: RAG Checked by: ENK
Notes
1 - In the Hantush solution, the confining unit is characterized by the ratio of the vertical conductivity (K') to the thickness (b').
This ratio is part of the solution derived in AQTESOLV®.
Z - Aquifer conductivity (K) equals transmissivity (T) divided by aquifer thickness (b).
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\FINAL FOR DUKE January 28
2019\Tables\EXCEL FILES\Table 3-5 Summary of Analytical Solutions -Mayo Page 1 of 1

TABLE 4-1
WATER QUALITY FIELD PARAMETERS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Specific
Dissolved
ORP
pH
Temperature
Description
Conductance
Oxygen
(mV)
(S.U.)
(deg C)
CPS/cm)
(mg/L)
AP-6
Minimum Value
488
0.00
-276
7.6
19.8
Maximum Value
523
9.07
-70
7.9
33.2
Average Value
512
0.56
-221
7.8
28.9
Standard Deviation
9
1.55
40
0.1
3.6
Prepared by: PWA Checked by: ENK
Notes:
pS/cm - micro -Siemens per centimeter
mg/L - Milligrams per liter
my - Millivolts
S.U. - Standard Units
deg C - degrees Celcius
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test
Report\Tables\
Table 4-1 Field Parameters -Mayo Page 1 of 1

TABLE 4-2
ASH PORE WATER ANALYTICAL RESULTS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
FIELD PARAMETERS
WATER QUALITY PARAMETERS
SELECTED 40CFR2S7 APPENDIX III CONSTITUENTS plus Sr
INORGANIC PARAMETERS (TOTAL CONCENTRATION)
Location
Sample
Sample
Water
Spec
Bi-
Total
Total
Total
Chromium
Sample ID
pH
Temp
DO
ORP
Eh
Turbidity
Alkalinity
carbonate
Sulfide
Organic
Suspended
Boron
Calcium
Chloride
Strontium
Sulfate
Dissolved
Aluminum
Antimony
Arsenic
Barium
Beryllium
Cadmium
Description
Media
Collection Date
Level
Cond
Alkalinity
Carbon
Solids
Solids
(VI)
Reporting Units
S.U.
ft
Deg C
umhos/cm
mg/L
mV
mV
NTUs
mg/L
mg/L
mg/L
mg/L
mg/L
ug/L
mg/L
mg/L
ug/L
mg/L
mg/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
AP-06
Pump
Ash
09/06/2018
NM
NM
NM
NM
NM
NM
NM
NM
225
225
<0.1
7.5
14
4500
59.7 M4
25
1200
8.1
320
546
0.829 j
418
276
<1
<1
<0.025
Test Well
Pore Water
1
1
AP-06
Pump
Ash
09/10/2018
7.7
54.79
27
498
0.07
-179
26
0.9
225
225
<0.1
6.3
6
4560
60.1
25
1230
5.7
360
208
<1
403
313
<1
<1
<0.025
Test Well
Pore Water
AP-06
Pump
Ash
09/11/2018
7.9
54.79
33
522
0.01
-252
-47
3.5
225
225
<0.1
7
9
4940
63.8 M4
26
1360
4.7
270
199
<1
718
323
<1
<1
<0.025 M1
Test Well
Pore Water
1
1
1
Prepared by: PWA Checked by:KTL
Notes:
< - concentration not detected at or above the adjusted reporting limit.
B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 1OX the concentration in the method blank. Analyte concentration in sample could be due to blank contamination.
B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes.
Deg C - Degrees Celsius
DO - Dissolved oxygen
Eh - Redox Potential
ft - Feet
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable.
mg - N/L - Milligrams nitrogen per liter
mg/L - Milligrams per liter
my - Millivolts
NE - Not established
NM - Not measured
NTU - Nephelometric turbidity unit
ORP - Oxidation -Reduction Potential
P4 - Sample field preservation does not meet EPA or method recommendations for this analysis.
pCi/L - picocuries per liter
S.U. - Standard Unit
Spec Cond - Specific Conductance
Temp - Temperature
U - Results not detected at concentrations which equal the laboratory's method reporting limit.
ug/L - Micrograms per liter
umhos/cm - Micro mhos per centimeter
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 4-2 Ash Pore Water Analytical Results -Mayo Page 1 of 4

TABLE 4-2
ASH PORE WATER ANALYTICAL RESULTS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
INORGANIC PARAMETERS (TOTAL CONCENTRATION)
Sample ID
Location
Sample
Sample
Chromium
Cobalt
Copper
Iron
Lead
Lithium
Magnesium
Manganese
Mercury
Molybdenum
Nickel
Nitrate
Potassium
Selenium
Sodium
Thallium
Vanadium
Zinc
Description
Media
Collection Date
+ Nitrite
Reporting Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
ug/L
ug/L
ug/L
ug/L
mg-N/L
mg/L
ug/L
mg/L
ug/L
ug/L
ug/L
AP-06
Pump
Ash
09/06/2018
8.87
1.12
2.88
1580
0.676 j
434
17.5
655
<0.05
580
5.84
<0.01
11.8
<1
10 32
0.183 j
5.85
40
Test Well
Pore Water
AP-06
Pump
Ash
09/10/2018
3.8
0.624 j
1.09
1160
<1
441
16.1
542
<0.05
583
3.42
<0.01
12.8
<1
9.33 32
<0.2
1.74
21
Test Well
Pore Water
AP-06
Pump
Ash
09/11/2018
1.72
0.479 j
2.65
1280
<1
689
18
682
<0.05
585
1.68
<0.01
14.7
<1
7.74
<0.2
1.28
9
Test Well
Pore Water
Prepared by: PWA Checked by:KTL
Notes:
< - concentration not detected at or above the adjusted reporting limit.
B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 1OX the concentration in the method blank. Analyte concentration in sample could be due to blank contamination.
B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes.
Deg C - Degrees Celsius
DO - Dissolved oxygen
Eh - Redox Potential
ft - Feet
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable.
mg - N/L - Milligrams nitrogen per liter
mg/L - Milligrams per liter
my - Millivolts
NE - Not established
NM - Not measured
NTU - Nephelometric turbidity unit
ORP - Oxidation -Reduction Potential
P4 - Sample field preservation does not meet EPA or method recommendations for this analysis.
pCi/L - picocuries per liter
S.U. - Standard Unit
Spec Cond - Specific Conductance
Temp - Temperature
U - Results not detected at concentrations which equal the laboratory's method reporting limit.
ug/L - Micrograms per liter
umhos/cm - Micro mhos per centimeter
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TABLE 4-2
ASH PORE WATER ANALYTICAL RESULTS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
INORGANIC PARAMETERS (DISSOLVED CONCENTRATION WITH FILTER SIZE)
Aluminum
Antimony
Arsenic
Barium
Beryllium
Boron
Cadmium
Chromium
Cobalt
Copper
Iron
Lead
Lithium
Manganese
Mercury
Molybdenum
Nickel
Phosphorus
Selenium
Strontium
Thallium
Sample ID
Location
Sample
Sample
Description
Media
Collection Date
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
(0.45u)
Reporting Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
mg/L
ug/L
ug/L
ug/L
AP-06
Pump
Ash
09/06/2018
31
0.639j
360
257
<1
4360
<1
1.05
0.635j
<1
790
<1
417
633
<0.05
564
2.17
<0.05
<1
1170
<0.2
Test Well
Pore Water
AP-06
Pump
Ash
09/10/2018
41
<1
398
314
<1
4590
<1
0.552j
0.458j
0.391j
1000
<1
447
548
<0.05
600
1.9
0.084
<1
1250
0.128j
Test Well
Pore Water
AP-06
Pump
Ash
09/11/2018
73
<1
699
312
<1
4960
<1
0.398j
0.359j
<1
1180
<1
689
673
<0.05
575
0.984j
0.14
<1
1330
<0.2
Test Well
Pore Water
Prepared by: PWA Checked by:KTL
Notes:
< - concentration not detected at or above the adjusted reporting limit.
B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 1OX the concentration in the method blank. Analyte concentration in sample could be due to blank contamination.
B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes.
Deg C - Degrees Celsius
DO - Dissolved oxygen
Eh - Redox Potential
ft - Feet
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable.
mg - N/L - Milligrams nitrogen per liter
mg/L - Milligrams per liter
my - Millivolts
NE - Not established
NM - Not measured
NTU - Nephelometric turbidity unit
ORP - Oxidation -Reduction Potential
P4 - Sample field preservation does not meet EPA or method recommendations for this analysis.
pCi/L - picocuries per liter
S.U. - Standard Unit
Spec Cord - Specific Conductance
Temp - Temperature
U - Results not detected at concentrations which equal the laboratory's method reporting limit.
ug/L - Micrograms per liter
umhos/cm - Micro mhos per centimeter
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TABLE 4-2
ASH PORE WATER ANALYTICAL RESULTS
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
INORGANIC PARAMETERS
RADIONUCLIDES
OTHER PARAMETERS
(DISSOLVED CONCENTRATION WITH FILTER SIZE)
Vanadium
Zinc
Sample ID
Location
Sample
Sample
Radium-226
Radium-228
Total
Total
Carbonate
Fluoride
Phosphorus
Description
Media
Collection Date
Radium
Uranium
Alkalinity
(0.45u)
(0.4Su)
Reporting Units
ug/L
ug/L
pCi/L
pCi/L
pCi/L
ug/mL
mg/L
mg/L
mg/L
AP-06
Pump
Ash
09/06/2018
3.01
19
0.739
0.383 U
1.122
0.0027
<5
0.6
0.086
Test Well
Pore Water
AP-06
Pump
Ash
09/10/2018
1.1
13
0.477 U
0.185 U
0.662
0.00205
<5
0.88
0.11
Test Well
Pore Water
AP-06
Pump
Ash
09/11/2018
0.827
2.948j
0.161 U
0.347 U
0.508
0.00353
<5
1
0.14
Test Well
Pore Water
Prepared by: PWA Checked by: KTL
Notes:
< - concentration not detected at or above the adjusted reporting limit.
B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 1OX the concentration in the method blank. Analyte concentration in sample could be due to blank contamination.
B2 - Target analyte was detected in blank(s) at a concentration greater than 1/2 the reporting limit but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance purposes.
Deg C - Degrees Celsius
DO - Dissolved oxygen
Eh - Redox Potential
ft - Feet
j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
M4 - The spike recovery value was unusable since the analyte concentration in the sample was disproportionate to the spike level. The associated Laboratory Control Spike recovery was acceptable.
mg - N/L - Milligrams nitrogen per liter
mg/L - Milligrams per liter
my - Millivolts
NE - Not established
NM - Not measured
NTU - Nephelometric turbidity unit
ORP - Oxidation -Reduction Potential
P4 - Sample field preservation does not meet EPA or method recommendations for this analysis.
pCi/L - picocuries per liter
S.U. - Standard Unit
Spec Cond - Specific Conductance
Temp - Temperature
U - Results not detected at concentrations which equal the laboratory's method reporting limit.
ug/L - Micrograms per liter
umhos/cm - Micro mhos per centimeter
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Tables\Table 4-2 Ash Pore Water Analytical Results -Mayo Page 4 of 4

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX A
ASH BASIN PUMPING TEST WORK PLAN

16V
synTerra
ASH BASIN PUMPING TEST
WORK PLAN
AT
MAYO STEAM ELECTRIC PLANT
10660 BOSTON ROAD
ROXBORO, NORTH CAROLINA 27574
PREPARED FOR
DUKE ENERGY PROGRESS, LLC
DUKE
ENE RGYo
PROGRESS
estop er H. Bruce, NC LG 2246
Sr. Geologist
Ier A. Wylie, N LG 1425
Pro'p,d Manager

Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
TABLE OF CONTENTS
SECTION PAGE
1.0 INTRODUCTION.........................................................................................................1-1
2.0 SITE CONCEPTUAL MODEL...................................................................................2-1
2.1 Site Geology and Hydrogeology............................................................................ 2-1
2.1.1 Site Geology......................................................................................................... 2-1
2.1.2 Site Hydrogeology.............................................................................................. 2-2
3.0 WELL INSTALLATION.............................................................................................. 3-1
3.1
Installation of Pumping and Observation Wells ..................................................
3-1
3.1.1
Ash Pumping Well Installation.........................................................................
3-1
3.1.2
Ash Observation Well Installation...................................................................
3-2
3.2
Well Development....................................................................................................
3-2
4.0
AQUIFER PUMP TEST DATA NEEDS....................................................................4-1
5.0
AQUIFER PUMPING TEST.......................................................................................5-1
5.1
Static Water Level Collection..................................................................................
5-1
5.2
Pumping System Installation..................................................................................
5-1
5.3
Step-Drawdown Test................................................................................................5-1
5.4
Step Test Recovery....................................................................................................5-2
5.5
Constant -Rate Pumping Test..................................................................................
5-2
6.0
WATER -QUALITY MEASUREMENTS AND SAMPLING .................................
6-1
7.0
ANALYSIS OF WATER -LEVEL DATA...................................................................7-1
7.1
Baseline Analysis.......................................................................................................
7-1
7.2
Step Test Analysis.....................................................................................................
7-1
7.3
Constant Discharge Rate Test Analysis.................................................................
7-1
8.0
REFERENCES................................................................................................................
8-1
Page i
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Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
LIST OF FIGURES
Figure 1-1 Site Location Map
Figure 1-2 Mayo Plant Vicinity Map
Figure 3-1 Proposed Locations for Ash Basin Pumping Test
Figure 5-1 Typical Flow Meter Configuration
Figure 5-2 Typical Step Test Drawdown Curve
LIST OF TABLES
Table 3-1 Proposed Well Construction Details
Table 5-1 Proposed Wells to be Monitored During Ash Basin Pumping Test
LIST OF APPENDICES
Appendix A Boring Logs for ABMW-2 and ABMW-3 Well Clusters
Page ii
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Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
1.0 INTRODUCTION
Duke Energy Progress, LLC (Duke Energy) owns and operates the coal-fired Mayo
Steam Electric Plant (Mayo, Plant, or Site), located in a rural area approximately 10
miles north of the City of Roxboro in Pearson County, North Carolina (Figure 1-1).
Duke Energy owns the site property, which is roughly bisected by US Highway 501
(Boston Road). The majority of the Plant property is located east of Highway 501,
encompasses 460 acres, and includes the power plant, ash basin, and the majority of
operational features (Figure 1-2). The Mayo Plant began operations in 1983 with a single
727-megawatt capacity generating coal-fired unit. Coal combustion residuals (CCR)
have historically been managed in the Plant's on -site ash basin (surface impoundment).
CCR were initially deposited in the ash basin by hydraulic sluicing operations. CCR
was managed at the Plant's on -site ash basin and transported via wet sluicing until 2013
when the Mayo Plant converted to a dry ash system in which 90 percent of CCR was
dry. Final system upgrades were completed in October 2016; all CCR collection is dry.
Beginning in November 2014, CCR from the Plant has been managed in the newly
constructed Landfill permitted by the North Carolina Department of Environment
Quality (NCDEQ) Division of Waste Management (NCDEQ-DWM) Permit 7305.
Discharge from the ash basin to Mayo Lake is permitted by the NCDEQ Division of
Water Resources (NCDEQ-DWR) under National Pollutant Discharge Elimination
System (NPDES) Permit NC0038377.
Detailed descriptions of the Site operational history, the Site conceptual model, physical
setting and features, geology/hydrogeology, and results of the findings of the CSA and
other CAMA-related works are documented in full in the following documents:
• Comprehensive Site Assessment Report — Mayo Steam Electric Plant (SynTerra,
September 2, 2015)
• Corrective Action Plan Part 1— Mayo Steam Electric Plant (SynTerra, December 1,
2015)
• Corrective Action Plan Part 2— Mayo Steam Electric Plant (SynTerra, February 2,
2016)
• Comprehensive Site Assessment Supplement 1— Mayo Steam Electric Plant (SynTerra,
July 7, 2016)
• Comprehensive Site Assessment Update —Mayo Steam Electric Plant (SynTerra,
October 31, 2017)
Page 1-1
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Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
Ash basin pumping test are planned to collect site -specific data to refine the
groundwater flow and transport model to be used for closure planning and potential
groundwater corrective action evaluation. The pumping tests would focus on
evaluation of field scale horizontal and vertical variability of the hydrologic
characteristics for the saturated media. Each test would provide estimates of media
properties including transmissivity (T), hydraulic conductivity (K), and storativity (S).
The following major tasks are anticipated for well installation and ash basin pumping
test at the Mayo Steam Electric Plant:
1. Well Installation and Development
2. Static Water Level (Baseline Data) Collection
3. Pumping System Installation
4. Step-Drawdown Tests
5. Step Drawdown Test Recovery
6. Constant Rate Pumping Tests
7. Water Quality Sampling
8. Data Analysis
As a portion of this scope of work, both pumping wells and observation wells will be
installed at the Site. One ash pumping well will be installed at a selected location. A
total of six new observation wells will also be installed. Additionally, two existing wells
will be utilized as observation points during the ash pumping test.
One pumping test is estimated to take eight (8) days (72 hours for static conditions, 24
hours for step test/recovery, 72 hours for constant rate discharge test, 24 hours
recovery). During this time, water levels would be monitored in selected wells using
pressure transducers and manual water level readings. Groundwater samples will also
be collected daily during the pumping test for laboratory analysis.
Page 1-2
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Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
2.0 SITE CONCEPTUAL MODEL
2.1 Site Geology and Hydrogeology
This section provides a brief summary of the Site geology and hydrogeology. However,
it should be noted that the scope of the aquifer pumping tests will be limited to the ash.
Detailed descriptions of the Site geology and hydrogeology can be found in the
documents listed in Section 1.
2.1.1 Site Geology
The vicinity of the Mayo Plant is generally characterized by mature, well-
rounded hills and rolling rides cut by small streams and drainages. However, in
areas with thinner regolith, like in the immediate vicinity of the Mayo Plant, the
relief is more rugged with incised streams that occur as the rate of subsurface
weathering has failed to keep pace with the rate of erosion.
The Plant is located near the contact between two regional zones of
metamorphosed rocks: the Carolina Slate Belt (often referred to as Carolina
terrane) on the east and the Charlotte Belt (or Charlotte terrane to the west. The
majority of the Mayo Plant, including the largest portion of the ash basin and
Mayo Lake are situated in the Caroline terrane.
The subsurface at Mayo Plant is composed of regolith (including residual soils,
fill and reworked soils, alluvium, and saprolite), transition zone, and bedrock.
Subsurface conditions vary with topography, parent rock, and site infrastructure.
Saprolite is mostly thin (ranging from non-existent to around 25 feet deep) and
almost entirely unsaturated. This generalization is not consistent for the
southern, upland parts of the Site where a thick, saturated saprolite zone is
present nor for certain locations beneath the ash basin. The thin to non-existent
saprolite zone across the central and northern portion of the Site is due to
extensive excavation and reworking of surficial materials during Plant
construction.
A transition zone of partially weathered rock underlies the regolith and is
generally continuous throughout the Mayo Plant area. However, the transition
zone at Mayo Plant is mostly comprised of partially weathered rock that is
gradational between saprolite and competent bedrock. The change from
partially weather rock to the third unit, competent bedrock is subjective and at
Mayo Plant is defined by subtle changes in weathering, secondary staining and
mineralization, core recovery, and the degree of fracturing in the rock.
Page 2-1
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Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant SynTerra
Bedrock in the area includes volcanic and sedimentary rocks that have been
metamorphosed, intruded by coarse -grained granitic rocks, and subjected to
regional structural deformation. The shallow bedrock has been fractured;
however, only mildly productive fractures (providing water to wells) were
observed within the top 50 feet of competent rock.
2.1.2 Site Hydrogeology
In general, three hydrogeologic units or zones of groundwater flow can be
described for the Mayo Plant. The zone closest to the surface is the shallow or
surficial flow zone encompassing saturated conditions, where present, in the
residual soil, saprolite, or alluvium beneath the Site. A transition zone is
encountered below the surficial zone and the bedrock as is characterized
primarily by partially weathered rock of variable thickness. The transition zone
is not consistently saturated across the Site. The bedrock flow zone occurs below
the transition zone and is characterized by the storage and transmission of
groundwater in water -bearing fractures.
The Mayo Plant ash basin occupies the former stream valley of Crutchfield
Branch. The basin acts as a bowl -like feature towards which groundwater flows
from the northwest, west, south, and east. Groundwater flows north-northeast
from the ash basin into the small valley formed by Crutchfield Branch.
Groundwater flows from the highest topographic portion of the Site (near the
Plant entrance road) to the north and northeast. The ash basin was formed when
the Crutchfield Branch stream valley was damned. The flow of ponded water
within the ash basin is controlled laterally by groundwater flow that enters the
basin from the east, south, and west and is controlled downgradient (north-
northeast) by the ash basin damn and the NPDES outfall/discharge. The head
created by the ash pore water creates a slight mounding effect that influences the
groundwater flow direction in the immediate vicinity of the ash basin. East of
the ash basin, a groundwater divide separates the Crutchfield Branch flow
regime from the Mayo Lake flow regime.
The vertical gradients are near equilibrium across the Site indicating that there is
no distinct horizontal confining layer beneath the Mayo Plant.
The topographically highest portion of the Site is along the Plant entrance road
just off Highway 501. In general, the topography slopes away from the entrance
road and the power plant area towards Mayo Lake. The power plant area is
situated at an approximate elevation of 520 feet mean sea level (msl) and Mayo
Lake is at an elevation of about 435 feet msl, a vertical difference (relief) of 85
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feet. One small stream traverses the southern end of this portion of the Site
flowing from west to east, originating south of the coal pile, and eventually
flowing into Mayo Lake. Whereas the Piedmont region of North Carolina is
typically characterized by gently rolling hills and ridges, the topography around
the Mayo Plant is steeper with incised streams and deeply cut ridges and inter -
ridge valleys. This steeper topography is attributed to the shallow regolith in the
Plant area that leads to a faster rate of erosion relative to the rate of weathering.
These geomorphic processes were in place prior to the damming of Crutchfield
Branch (to create the ash basin) and Mayo Creek (to create Mayo Lake).
Based on review of the USGS topographic map of the Mayo Plant area prior to
Plant construction, it is apparent that the ash basin now encapsulates the
headwaters of Crutchfield Branch. Topography surrounding the ash basin is
gentler than near Mayo Lake with relief in the range of 60 feet. Surface runoff
drains to the ash basin from the higher areas to the east, south, and west. The
ash basin dam is approximately 2,300 feet long, 400 feet wide at the base, and has
a maximum height of approximately 110 feet. The dam is oriented northwest —
southeast and was completed in October 1982. Recent surveying and
bathymetric studies indicate that the basin has a storage capacity of 1,500 acre-
feet. Two engineered toe drains are located on the downstream side of the dam.
Steep hills are present in the area downslope from the ash basin. Crutchfield
Branch and a small tributary that drains the west toe drain flow north-northeast,
under May Lake Road and off -Site. Deeply cut ridges and valleys occur in the
extreme northern portion of the Site along the North CarolinaNirginia border
and to the east of the ash basin. A small, intermittent stream flows south to north
from the east side of the 1981 C&D landfill, under Mayo Lake Road, and
eventually merges with Crutchfield Branch off -Site prior to crossing the North
CarolinaNirginia state line.
Mayo Lake is the dominant feature on the eastern portion of the Site. Mayo Lake
was formed when Mayo Creek was dammed, and now encapsulates the majority
of the reach of Mayo Creek as well as a number of smaller streams that flowed
into Mayo Creek prior to the lake formation. The 2,800-acre lake is maintained
by the earthen dam located at the northern end of the lake.
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3.0 WELL INSTALLATION
SynTerra will conduct field oversight of drilling operations and well installations at the
proposed test locations. SynTerra's oversight will include documentation of field
observations and activities associated with well drilling, well installation and well
development activities conducted by a licensed North Carolina driller and support crew
contracted by Duke Energy.
Proposed pumping well and observation well locations and a conceptual well layout
and cross -sectional view are provided on Figure 3-1. A summary of proposed well
construction details for the pumping wells and observation wells is included in Table 3-
1. Proposed well depths and screened intervals are based on boring logs from the
adjacent well clusters ABMW-2 and ABMW-3. Boring logs form these locations have
been included as Appendix A.
3.1 Installation of Pumping and Observation Wells
Prior to the start of any drilling activities at the Site, subsurface utility location will be
conducted in the area of all proposed borings.
3.1.1 Ash Pumping Well Installation
The ash pumping well will be installed using sonic drilling techniques utilizing a
nominal 13-inch sonic core barrel. The ash pumping well will be drilled to
approximately 80 feet below ground surface (see Table 3-1).
A six-inch schedule 40 PVC well, with a 10-foot wire -wrapped 0.10 slot PVC
screen will then be installed in the boring. The well will be hung approximately
one foot off the bottom of the boring (to allow filter material below the well
screen).
No. 1 well sand or equivalent filter pack materials will be used. The filter pack
material will be tremie washed in if there is standing water in the bore hole (not
anticipated with sonic drilling). The filter pack will be extended from the base of
the boring to a minimum of five feet above screen interval. Coated bentonite
pellets will be used for the seal and extend a minimum of five feet above the
sand pack. Pellets will be allowed to hydrate for in accordance with
manufactures specifications before grouting. After hydration of the seal, the
remaining annulus will be pressured grouted using a 1-2 percent bentonite 90
percent neat cement mixture (grout mixing should be 5.2-5.75 gallons of water
per 94 pound bag of Portland Type cement). Where a well is installed within 15
feet of an existing monitoring well location, a low pH grout, such as
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AQUAGUARD, should be used. The use of this type of grout is intended to
reduce the potential for grout impacts on existing or nearby monitoring wells.
3.1.2 Ash Observation Well Installation
A total of 6 ash observation wells will be installed at the site. These wells will be
located at 15 feet and 30 feet away from the pumping well. Distance from the
pumping well for each observation well is provided on Table 3-1.
Ash observation wells will be installed using sonic drilling techniques utilizing a
nominal six-inch (or equivalent) core barrel advanced to the target depth (see
Table 3-1).
A two inch schedule 40 PVC well, with a five-foot Vee-Pack PVC screen will then
be installed in the boring. The well will be hung approximately one foot off the
bottom of the boring (to allow filter material below the well screen).
No. 1 (or equivalent) filter pack will be extended from the base of the boring to a
minimum of five feet above Vee-Pack screen interval. Coated bentonite pellets
will be used for the seal. The well seal will be extended a minimum of five feet
above the sand pack. Pellets will be allowed to hydrate in accordance with
manufactures specifications before grouting. After hydration of the seal, the
remaining annulus will be pressured grouted (for grout specifications see section
3.1.1).
3.2 Well Development
The newly installed wells will be developed until discharge is clear and stable. Well
development should include surging and high volume water removal (air lifting or
other methods capable of quickly removing water). Completion of development will be
determined when turbidity remains below 10 Nephelometric Turbidity Units (NTUs) or
5 borehole volumes have been extracted (subject to change based on field observations).
The main objective of the well development is to improve near -well permeability and
stability. The removal of the fine particles from the near -well area will help create a
more permeable zone and minimize the effect of well smear or caking. Improper well
development can cause significant impact to the results of both the step test and the
constant rate discharge test. This could result in the need to stop the test (step test or
constant rate test) and redevelop the wells (primarily pumping wells). Well
development for the pumping wells will be considered complete when no fines are
observed in the well discharge (less than 10 NTUs) after surging the well.
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Once the wells have been fully developed they will be allowed to equilibrate for five
days prior to the collection of baseline water level data.
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4.0 AQUIFER PUMP TEST DATA NEEDS
Aquifer pumping test results will be used to define aquifer characteristics within the
ash basin. Information gathered during aquifer pumping tests will be used to refine the
groundwater flow and transport model. Based on the pumping rates obtained during
well installation, it is anticipated that three-day (72 hours) tests will allow for evaluation
of aquifer properties.
Evaluation of data in the field will ultimately be used to determine the durations. Each
test will be conducted in general accordance with ASTM D 4050-96 (2002).
The following pretest data is needed:
• Geologic characteristics of the subsurface that influence groundwater flow.
The subsurface in the area of the pumping test is composed of ash, saprolite,
transition zone, and bedrock. The aquifer testing will be limited to the ash.
Groundwater flow in the ash (primary test aquifer) is porous media flow. It is
assumed that groundwater flow direction and gradients are primarily
controlled by topography.
• The type of water -bearing zone and its lateral and vertical extent.
The primary water -bearing zone for the aquifer test is the ash. For the purpose
of this test, it is assumed to be infinite in lateral and vertical extent.
• The depth, thickness, and lateral extent of any confining beds.
Observations will be made during drilling operations to identify any confining
beds. It is currently unknown whether the lower ash wells will indicate water
table conditions, partially confined conditions, or confined conditions.
• Location of groundwater recharge.
Groundwater recharge is assumed to be primarily from the ash basin area.
• Horizontal and vertical flow components (e.g., direction, gradient).
Water levels will be measured in the ash monitoring wells to determine the
horizontal and vertical hydraulic gradient in the area of the aquifer test.
Additionally, the multi -level well screens will provide information on potential
stratification within the ash.
Location, construction, and zone of completion of existing wells in the area (see
Table 3-1).
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5.0 AQUIFER PUMPING TEST
5.1 Static Water Level Collection
Static water level (baseline data) collection may commence once the pumping wells and
observation wells have been installed, developed, and allowed to equilibrate (for
approximately five days). Baseline water -level readings will be used to determine long-
term data trends or potential interferences from other pumping/discharge source(s).
Water levels will be monitored in selected wells using pressure transducers. A
summary of the wells to be monitored for each test is included as Table 5-1.
Transducers will be installed in all proposed observation well at the site.
Prior to the installation of transducers, an initial round of water levels will be manually
collected from the wells listed in Table 5-1. Transducers will then be installed and
programmed to collect water level data every 10 minutes for a minimum of 72 hours
before the start of any active pumping (step test). At the end of the 72-hour period,
baseline measurements would be stopped and downloaded for review.
5.2 Pumping System Installation
Once baseline conditions have been established, a submersible pump would be installed
in the pumping well by the Duke well installation contractor.
The Duke well installation contractor will provide and install a flow meter capable of
continuously logging discharge rates and total flow in -line with the pump discharge
line. The flow meter will need to be installed in such a way as to allow it to be full of
water at all times. This can be done by the installation of a six-inch drop in the
discharge line prior to the flow meter and a subsequent 6 inch rise in the discharge line
past the flow meter. A minimum of one foot of straight piping will also need to be
installed after the drop and before the rise to ensure laminar flow through the
transducer. Two ball valves should be installed in the discharge line. One should be
located prior to the drop and one should be located post rise. A photograph showing
the general proposed configuration for the flow meter is presented on Figure 5-1. A
small diameter sampling port should also be installed somewhere near the flow meter
to allow for taking field water quality measurements and samples. The remaining
discharge line should be extended away from the test area (300-500 feet) to minimize
potential influence of the discharged groundwater.
5.3 Step-Drawdown Test
After the pumping system has been installed, the well will be allowed to fully recover
(assumed to be 12 hours). Once the pumping well has fully recovered, SynTerra in
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conjunction with the drilling contractor will conduct a step-drawdown test. A typical
step test drawdown curve is presented in Figure 5-2.
A step-drawdown test (or step test) is a single -well pumping test designed to
investigate the performance of a pumping well under controlled variable discharge
conditions. During the step-drawdown test, an initial rate of one gallon per minute
(gpm) would be used. The discharge rate would be increased approximately five gpm
per step period (subject to change based on field observations). Each step would be
approximately 2 hours (subject to change based on field observations). This duration
should allow wellbore storage effects to dissipate. This process would continue until the
well can no longer sustain the selected flow rate (curve does not flatten out) or a
maximum of 20 gpm flow rate is reached. After completion of the step test, the
pumping well would be allowed to return to static conditions (recovery tests).
Data from the step test will be used to determine an appropriately conservative initial
pumping rate (Qmax) for the constant rate pumping tests. A Qmax should be calculated
that will result in a drawdown after 72 hours that is approximately 25 percent of the
water column (see Section 5.2). At the end of the test the flow will be adjusted to the
selected Qm. using one of the ball valves prior to shutting down the pump. As the
pump is shut down the remaining ball valve will be closed to prevent the discharge line
from draining into the well (which would affect recover data).
5.4 Step Test Recovery
Once the step test is complete, the pump will be shut off and the flow meter will be
isolated (using ball valves upstream and downstream of the flow meter). The well will
be allowed to fully recover prior to the start of the constant discharge test. It is
anticipated that recovery will take less than 12 hours. Water levels will continue to be
monitored at the same frequency during recovery.
Once recovery is complete, the transducers water -level readings will be stopped and the
data downloaded and analyzed.
5.5 Constant -Rate Pumping Test
Once the step-drawdown test has been completed and water levels in the pumping well
and affected observation wells have returned to static conditions and transducers have
been stopped and reprogramed, a constant -rate pumping test will be conducted. Prior
to the start of any active pumping a round of water levels will be collected in the
monitored wells for each test location (see Table 5-1)
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A constant -rate pumping test involves a control well that is pumped at a constant rate
while water -level response (drawdown) is measured in one or more surrounding
observation wells and in the pumping well. The goals of a constant -rate pumping test
are to estimate hydraulic properties of a saturated porous media such as T, K, and S and
to identify potential boundary conditions that may exist.
Discharge rate would be measured approximately every 15 minutes during the initial
portion of the test (first four hours). If discharge rate is stable, flow readings will be
collected at 8-hour intervals for the remainder of the test. Water level transducers will
be set to record measurements every minute for the duration of the 72-hour test and
recovery period. Discharge water will be routed to the active ash basin in the
approximate locations depicted on Figure 3-1.
Once pumping has started, the test will run uninterrupted for up to 72 hours. During
that period, water -levels will be continuously monitored with data logging pressure
transducers and flow measurements continuously recorded (24 hours per day) with an
electronic flow meter that averages measurements at five minute intervals. Manual
water -level readings would be collected every two hours at each selected well during
active pumping to provide automated data backup (see Table 5-1). Manual water -level
readings will also be collected twice daily at monitoring wells ABMW-3S, ABMW-4,
ABMW-4S, and SMP-1. Manual flow measurements may be conducted based on field
observations, as described earlier in this section. Ground water quality field readings
and laboratory samples will be collected from the discharge at selected intervals during
active pumping (see Section 4.0).
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6.0 WATER -QUALITY MEASUREMENTS AND SAMPLING
In order to help identify the potential geochemical changes that may accrue in the ash
pore water during the active pumping, water -quality data will be collected during each
pumping test. Water -quality data will include the collection of both field reading and
laboratory samples. Particular emphasis will be placed on collection of conductivity
and pH data. Changes in water chemistry (conductivity and pH) may indicate contact
with a recharge boundary. Groundwater samples will be collected from the pumping
well discharge and analyzed for IMP constituent list.
Water -quality measurements will be collected from the discharge during the entire
constant rate discharge test. Readings of pH, specific conductance, temperature,
dissolved oxygen, oxidation reduction potential, Eh, and turbidity will be collected once
every hour during the test. To facilitate this, a YSI Pro Plus water -quality meter will be
plumbed into the discharge line. Flow through the meter will be regulated with both
upstream and downstream valves.
Water -quality samples for laboratory analysis will be collected prior to the step-
drawdown test and once per day during the constant rate pumping test from each of
the pumping wells. Each sample will be collected from a sampling port plumbed into
the discharge line. Water will be collected in laboratory -prepared sample bottles and
immediately placed on ice under strict chain -of -custody.
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7.0 ANALYSIS OF WATER -LEVEL DATA
Analysis of water -level fluctuations in monitoring wells will be initially conducted
using Aqtesolv® Version 4.5. Baseline data, step test data, constant rate discharge data
(pumping test), drawdown data, and analytical results will be summarized and
included as part of a technical memorandum on the results of aquifer testing.
7.1 Baseline Analysis
Baseline data will be evaluated to determine whether any long-term trends or
interference from nearby production wells are observable. If long-term data trends are
observed, the baseline data will be used to adjust the pumping test drawdown data to
compensate for the observed trend.
7.2 Step Test Analysis
Step test analysis will be conducted in the field. The Theis (1935) step-drawdown
procedure will be used to analyze data. Additional analytical methods (Dougherty-
Badu, 1984; Hantush-Jacob, 1955; Theis, 1935; and Hantush, 1961) may be used
depending on results of the step test drawdown data.
Step test results will be used to calculate a flow rate that will result in a drawdown of
approximately 25 percent of the saturated thickness after 72 hours (and excel spread
sheet will be provided for making these calculations).
7.3 Constant Discharge Rate Test Analysis
Final analysis methods of drawdown data are dependent on actual results of the
tests. Initially, it is assumed that the proposed ash pumping wells are unconfined.
Additionally, drawdown may be observed only in the pumping well. This will result in
analysis of the data as a single -well pumping test. If data indicates drawdown in one or
more observation well, the test will be analyzed as a multiple -well pump
test. Suggested analytical methodologies for data analysis of both single -well and
multiple -well pump tests are outlined in the Technical Guidance Manual for
Hydrogeologic Investigations and Groundwater Monitoring, Chapter 4, Slug and
Pumping Test, Table 4.2 (single -well pump test) and Table 4.7 (multiple -well pump test)
(Clemson, February 1995) at: httj2://www.clemson.edu/cesftdro/murdoch/PDF`/`
20Files/Pumping%20tests, %20EPA%20guidance.12df
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8.0 REFERENCES
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.
Dougherty, D.E and D.K. Babu, 1984. Flow to a partially penetrating well in a double
porosity reservoir, Water Resources Research, vol. 20, no. 8, pp. 1116-1122.
Hantush, M.S. and C.E. Jacob, 1955. Non -steady radial flow in an infinite leaky aquifer, Am.
Geophys. Union Trans., vol. 36, pp. 95-100.
Hantush, M.S., 1961b. Aquifer tests on partially penetrating wells, Jour. of the Hyd. Div.,
Proc. of the Am. Soc. of Civil Eng., vol. 87, no. HY5, pp. 171-194.
LeGrand, H. (2004). A master conceptual model for hydrogeological site
characterization in the Piedmont and Mountain Region of North Carolina: A
guidance manual. North Carolina Department of Environment and Natural Resources,
Division of Water Quality, Groundwater Section, Raleigh, NC, 55.
Theis, C.V., 1935. The relation between the lowering of the piezometric surface and the rate and
duration of discharge of a well using groundwater storage, Am. Geophys. Union Trans.,
vol. 16, pp. 519-524.
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FIGURES
SynTerra
P: \ Duke Energy Progress.1026\ 105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping
Test\Ash Basin Pumping Test Work Plan\Mayo Ash Basin Pumping Test Work Plan FINAL.docx

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CHECKED BY: K. DONOVAN
PROJECT MANAGER: J. WYLIE
CAROLINA-VIRGINIA STATE
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ASH BASIN WASTE BOUNDARY
ASH BASIN COMPLIANCE BOUNDARY
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NOTES:
PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY PROGRESS.
AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON JULY 13, 2017.
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FIGURE 1-2
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MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC
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FLOW METER CONFIGURATION
Rise -post flow meter`"
�mom
LAMINAR FLOW SECTIONS
• (12-INCHES PER AND POST METER)
THISSHOWSSHOWS THE GENERAL CONFIGURATION OF THE DISCHARGE LINE AND FLOW METER.
FLOW METER TYPE MAY VARY BUT SHOULD FOLLOW THIS GENERAL CONFIGURATION.
�r Ln,
i 7 ..
y.lv■nTAFa&VIS

0
in
SOURCE:
25
20
10
R]
STEP DRAWDOWN TEST
i a t
* 1
■ a r
i 1 +
i 1 +
a 1 ■
■ 1 4
� ! r
� 1
■
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■ !
r
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"STEP" PORTION OF CURVE a
•40.04t.... t... t. i.. iti�t:..t.. •i t t t. air#- t.i i t t t t f t�rttrt t.. .i i. t t. r f t. i• arr. rrt t#rd r i+�.
� ! f
# i i
"FLAT" PORTION OF CURVE
� + F
1 ■r■
■ittf■i�t#*tt■*�tifttt #tttf■• tt•ats.�■#}ti ■fa■ k#■i t�.......................... #................
■ a
r 1 �
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� 1 4
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i a F
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riraiitaiiarir raisiarsai*a.iiirriitiaararrrsiaratriir.,arras+ara•■iairrrarirararrraar
a 1 ■
a 1 r
i ! r
■ 1 r
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Time [h ]
fis
RECOVERY PORTION OF CURVE
h
•
i
...........
f■isa..f.. .........
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i
r
i
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farsr�iiia�irrararrararararai■irar•�•
4
4
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r
i
25
Pumping Period 1, Layer: 1
Pumping Period 2, Layer: 1
Pumping Period 3, Layer: 1
Pumping Period 4, Layer: 1
Pumping Period 5, Layer: 1
Pumping Period 6, Layer: 1
Pumping Period 7, Layer: 1
♦ Pumping Period 1
0 Pumping Period 1
Pumping Period 1
♦ Pumping Period 1
E Pumping Period 1
Pumping Period 1
♦ Recovery Period
MLU (Multi -Layer Unsteady state)
http://www.microfem.ni/products/mlu.html

Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant
TABLES
SynTerra
P: \ Duke Energy Progress.1026\ 105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping
Test\Ash Basin Pumping Test Work Plan\Mayo Ash Basin Pumping Test Work Plan FINAL.docx

TABLE 3-1
PROPOSED WELL CONSTRUCTION DETAILS
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Identification
Well Purpose
Distance from
Pumping Well
(feet)
Monitoring
Zone
Borehole
Diameter
(inches)
Well
Diameter
(inches)
Casing Depth
(feet BGS)
Total Well
Depth'
(feet BGS)
Screen
Length
(feet)
Ash Basin
AP-6 Ash Well
Pumping
NA
Lower Ash
13.25
6
NA
80
10
AP-6 Upper Ash
Observation
15
Upper Ash
6.25
2
NA
20
10
AP-6 Medium Ash
Observation
15
Medium Ash
6.25
2
NA
50
10
AP-6 Lower Ash
Observation
15
Lower Ash
6.25
2
NA
80
10
AP-6 Upper Ash
Observation
30
Upper Ash
6.25
2
NA
40
10
AP-6 Medium Ash
Observation
30
Medium Ash
6.25
2
NA
66
10
AP-6 Lower Ash
Observation
30
Lower Ash
6.25
2
NA
40
10
ABMW-2 (Existing)
Observation
TBD
Ash
NA
2
NA
39.2
5
ABMW-3 (Existing)
Observation
TBD
Ash
NA
2
NA
40.5
5
Prepared by: CHB Checked by: JAW
Notes:
Proposed depths and well construction details are approximate and subject to change based on field observations
Bold - Indicates Proposed Wells
"'Total Well Depth" is the depth to the bottom of the screened interval, as measured durinq well installation.
BGS - Below ground surface
NA - Not applicable
TBD - to be determined
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test\Ash Basin Pumping Test Work Plan\Tables\Table 3-1 Proposed Well
Construction Details —Mayo Page 1 of 1

TABLE 5-1
PROPOSED WELLS TO BE MONITORED DURING ASH BASIN PUMPING TEST
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
Well ID
PROPOSED WELL CLUSTER
Step Test
(Ash)
Pumping Test Z
(Ash)
AP-6 Ash Pumping Well
X
AP-6 Upper Ash (15 feet)
X
AP-6 Medium Ash (15 feet)
X
AP-6 Lower Ash (15 feet)
X
AP-6 Upper Ash (30 feet)
X
X
AP-6 Medium Ash (30 feet)
X
AP-6 Lower Ash (30 feet)
X
ABMW-2
X
ABMW-3
X
Prepared by: CHB Checked by: JAW
Notes•
Refer to Scope of Work for frequency of manual water level measurements
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test\Ash Basin
Pumping Test Work Plan\Tables\Table 5-1 Proposed Wells to be MonitoredTable 5-1 Proposed Wells to be Monitored Page 1 of 1

Ash Basin Pumping Test Work Plan July 2, 2018
Mayo Steam Electric Plant
APPENDIX A
BORING LOGS FOR
ABMW-2 AND ABMW-3 WELL CLUSTERS
SynTerra
P: \ Duke Energy Progress.1026 \ 105. Mayo Ash Basin GW Assessment Plan\ Ash Basin Pumping Test\ Ash Basin Pumping
Test \Ash Basin Pumping Test Work Plan \Mayo Ash Basin Pumping Test Work Plan FINAL.docx

PROJECT: Mayo Station
PROJECT NO: 1026.105
WELL / BORING NO: ABMW-02
STARTED: 5/30/15 COMPLETED: 5/31/15
NORTHING: 1012778.26 EASTING: 2030477.81
G.S. ELEV: 490.68 ft M.P. ELEV: 492.90 ft
DEPTH TO WATER: ft TOC TOTAL DEPTH: 41.2 ft BGS
LOGGED BY: J. Wylie CHECKED BY: E. Black
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
BOREHOLE DIAMETER: 6 IN
NOTES:
a
w"
0
U
a 0
<
0
U)
DESCRIPTION
a-
Q
�
0�
w �-
�
p z
m �
U
o f
a s
WELL
CONSTRUCTION
5
10
15
20
25
30
35
No recovery.
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand.
No recovery.
Grout
2" Sch. 40 threaded PVC
riser
—Bentonite seal
''° —Sand Pack
2" pre -packed well screen
'
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand, some gravel/coal fragments.
BOTTOM ASH, same as above at 8 ft.
FLY ASH, black, saturated, mostly fine sand, little silt,
dense.
BOTTOM ASH, same as above.
No recovery.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
No recovery.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
No recovery.
ML
SILT, tan, moise, mostly silt with some fine to medium
sand.
Mottled tan/gray, dry, very dense, weathered gneiss.
(SAPROLITE)
SynTerra CLIENT: Duke Energy Progress, LLC.
L�148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
�T� Greenville,999 ling 29601
erPhone:864 421 9PAGE 1 OF 2

PROJECT: Mayo Station
WELL / BORING NO: ABMW-02
PROJECT NO: 1026.105
STARTED: 5/30/15 COMPLETED: 5/31/15
NORTHING: 1012778.26 EASTING: 2030477.81
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 490.68 ft M.P. ELEV: 492.90 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 41.2 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
a
Uui
0-0
Q
o
co
O Z
0 a
WELL
wo
DESCRIPTION
Q
Lu `�
0
a n
CONSTRUCTION
m
45
50
55
60
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South Carolina 29601
s)mTerm Phone:[phone] PAGE 2 OF 2

PROJECT: Mayo Station
WELL / BORING NO: ABMW-02BR
PROJECT NO: 1026.105
STARTED: 5/28/15 COMPLETED: 6/3/15
NORTHING: 1012781.97 EASTING: 2030476.42
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 490.65 ft M.P. ELEV: 493.85 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 120.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
a
w"
0
U
a 0
<
0
U)
DESCRIPTION
a
Q
U)
0�
w �-
�
p z
m �
U
o f
a s
WELL
CONSTRUCTION
No recovery.
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand.
5
'
No recovery.
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand, some gravel/coal fragments.
10
BOTTOM ASH, same as above at 8 ft.
FLY ASH, black, saturated, mostly fine sand, little silt,
dense.
15
BOTTOM ASH, same as above.
No recovery.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
20
2" Sch. 40 threaded PVC
BOTTOM ASH, same as above.
riser
FLY ASH, same as above 12.3 ft.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
25
No recovery.
30
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
No recovery.
35
ML
SILT, tan, moise, mostly silt with some fine to medium
sand.
Mottled tan/gray, dry, very dense, weathered GNEISS.
(SAPROLITE)
SynTerra CLIENT: Duke Energy Progress, LLC.
L�148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville,999 ling 29601
�T�
erPhone:864 421 9PAGE 1 OF 4

PROJECT: Mayo Station
WELL / BORING NO: ABMW-02BR
PROJECT NO: 1026.105
STARTED: 5/28/15 COMPLETED: 6/3/15
NORTHING: 1012781.97 EASTING: 2030476.42
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 490.65 ft M.P. ELEV: 493.85 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 120.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
o
wo
Uui
0-0
Q
DESCRIPTION
Q
o
w `�
co
O Z
m 0
0 a
a n
WELL
CONSTRUCTION
NN
Grout
6" PVC surface casing
45
Mottled, dark brown, tan, gray, and black, very dense,
dry, saprolitic (schist).
50
Same as above.
55
Same as above.
60
Same as above, strong relict structure, more gneissic
structure/texture.
65
_
RK
Same as above, becoming harder with depth, mostly
rock fragments above 66 W, schistose texture,
saprolite/partially weathered rock contact at 67 ft.
70
No recovery.
5
75
No recovery from 75-77 ft.
RK
Partially weathered rock/bedrock transition from 77-80
ft. Hard, fresh to slightly weathered GRANITIC
GNEISS, iron and manganese staining on joint
surfaces, dry.
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South Carolina 29601
s)mTerm Phone:[phone] PAGE 2 OF 4

PROJECT: Mayo Station
WELL / BORING NO: ABMW-02BR
PROJECT NO: 1026.105
STARTED: 5/28/15 COMPLETED: 6/3/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012781.97 EASTING: 2030476.42
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 490.65 ft M.P. ELEV: 493.85 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 120.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
o
wo
Uui
o_ O
<
0
Q
�
DESCRIPTION
Q
U
o
w `�
co
O Z
m 0
U
o a
a n
WELL
CONSTRUCTION
Black with thin white bands on folliations, fresh,
PHYLLITE fracture breaks along planes of foliation, top
of bedrock designated at —80 ft.
85
-
Hard, slightly weathered to fresh, medium grained,
GRANITIC GNEISS.
�— Bentonite seal
90
_
-
Hard, fresh, medium grained, GRANITIC GNEISS, few
closely spaced tight breaks along foliation planes with
no staining or mineralization. High angle fracture at
90.8-91 ft. with mineralized joint surface. Vertical
95
,,_ -"
_
-
fracture/intersecting horizontal fracture at 94.4-95 ft.,
brownish -red surface staining on joint plane. 95-96' no
recovery, 97-100 ft. hard, fresh to slightly weathered,
medium grained GRANITIC GNEISS fractures at 97.3,
99 (healed), 99.3-99.6 ft. Joint surfaces, stained
-"
reddish -brown.
-
J9
Sand Pack
100
2" pre -packed well screen
- -`
Hard, GRANITIC GNEISS, weathered with abundant
- -
fractures and reddish brown mineralization, mostly
healed fracture in bottom 6-8".
Abrupt rock change/contact. Black, fresh, fine grained
105
HORNBLENDE GNEISS with 90% mafic minerals with
reddish orange staining on felsic crystallization.
Quartzite vein.
Hard, GRANITIC GNEISS, moderately weathered with
horizontal and vertical fractures some healed).
110
No recovery.
Moderate to severely weathered, dark gray
115
GRANITOID GNEISS, grades into more felsic light gray
GRANITOID GNEISS with some horizontal and vertical
fractures and red -orange mineralization/staining at
joints.
Light gray, moderately weathered GRANITOID
GNEISS with moderate to high angle bedding planes.
Horizontal fractures at 117.5, 118.2, 118.5, and 119 ft.
I
I
I
I
Sharp co tact into dark gray. fine grained PHYLLITF
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Carolina 29601
erPhone:864 421 PAGE 3 OF 4
s)mTraGreenville, 9

PROJECT: Mayo Station
WELL / BORING NO: ABMW-02BR
PROJECT NO: 1026.105
STARTED: 5/28/15 COMPLETED: 6/3/15
NORTHING: 1012781.97 EASTING: 2030476.42
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 490.65 ft M.P. ELEV: 493.85 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 120.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
a
Uui
0-0
Q
o
co
O Z
0 a
WELL
wo
DESCRIPTION
Q
w `�
0
a n
CONSTRUCTION
m
with high angle rough joint Trom119-120 ft.
Boring terminated at 120 ft. Bentonite added to boring
from 106-120 ft. to facilitate well construction.
125
130
135
140
145
150
155
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South Carolina 29601
s)mTerm Phone:[phone] PAGE 4 OF 4

PROJECT: Mayo Station
PROJECT NO: 1026.105
WELL / BORING NO: ABMW-03
STARTED: 5/18/15 COMPLETED: 5/19/15
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
BOREHOLE DIAMETER: 6 IN
NOTES:
NORTHING: 1012714.21 EASTING: 2030856.72
G.S. ELEV: 497.34 ft M.P. ELEV: 500.17 ft
DEPTH TO WATER: ft TOC TOTAL DEPTH: 40.5 ft BGS
LOGGED BY: J. Wylie CHECKED BY: E. Black
a
wo
Uui
a O
DESCRIPTION
a-
Q
() o
w `�
co
O
m 0
a
o n
WELL
CONSTRUCTION
5
10
15
20
25
30
35
No recovery.
Grout
2" Sch. 40 threaded PVC
riser
�— Bentonite seal
—Sand Pack
2" pre -packed well screen
'
BOTTOM ASH, black, dry, loose, mostly fine to
medium sand, poorly graded with some small gravel.
No recovery.
FLY ASH, dark gray, wet, silt.
BOTTOM ASH, medium grained, loose, dry, mostly fine
to coarse sand with some small gravel.
No recovery.
Hole collapse material.
FLY ASH, dark gray, dry, most) silt, few
.x
�ne�nd.
Same as 8.6'.
FLY ASH, darkgray,moist, mostly silt, fe
BOTTOM ASH, medium gray, mostly fine sand, moist,
e silt.
TTOM ASH, light to medium gray with tan and
tV�wn,dry, mostly fine to coarse sand with gravel
ces.
I
x z '
xt '
Y ASH, ra , wet, mostly silt, few fine sand.
BOTTOM ASH, light to medium gray, moist, mosjto
to coarse sand, few silt.
FLY ASH, dark gray, saturated, mostly silt, few fi
coarse sand.
BOTTOM ASH, light green/gray, medium to coarse
sand, moist, loose.
FLY ASH, medium to dark gray, mostly silt, moist,
some fine sand.
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.
BOTTOM ASH, gray, loose, fine to coarse sand, mois
with small lens of silt and gravel 25.6-25.8 ft.).
Interbedded FLY and BOTTOM ASH.
FLY ASH, dark gray, wet/saturated, silt.
Interlayered and interbedded FLY ASH and BOTTOM
ASH layers, recovery only a few inches thick.
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
s)mTraGreenville, 9Carolina 29601
erPhone:864 421 PAGE 1 OF 2

PROJECT: Mayo Station
WELL / BORING NO: ABMW-03
PROJECT NO: 1026.105
STARTED: 5/18/15 COMPLETED: 5/19/15
NORTHING: 1012714.21 EASTING: 2030856.72
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.34 ft M.P. ELEV: 500.17 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 40.5 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
a
U
a 0
U
a
O o
co
0 z
0 Q
WELL
w
< J
DESCRIPTION
Q
w �-
m 0
a
CONSTRUCTION
45
50
55
60
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South Carolina 29601
s)mTerm Phone:[phone] PAGE 2 OF 2

0
ao
g
a
0
Cn
z
z
0
PROJECT: Mayo Station
WELL / BORING NO: ABMW-03S
PROJECT NO: 1026.105
STARTED: 5/20/15 COMPLETED: 5/20/15
NORTHING: 1012718.52 EASTING: 2030858.24
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.33 ft M.P. ELEV: 500.30 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: E. Black CHECKED BY: J. Wylie
a
w V
0
U
a 0
<
(D
U)
DESCRIPTION
o-
Q
U)
0�
w �-
�
p z
m �
U
o f
a s
WELL
CONSTRUCTION
No recovery.
BOTTOM ASH, black, dry, loose, mostly fine to
medium sand, poorly graded with some small gravel.
5
'
No recovery.
FLY ASH, dark gray, wet, silt.
BOTTOM ASH, medium grained, loose, dry, mostly fine
10
' r
to coarse sand with some small gravel.
No recovery.
Hole colla se material.
FLY ASH, dark gray, dry, most) silt, few fine sand.
Same as 8.6 ft.
FLY ASH, dark gray, moist, most) silt, few clay.
15
.x
BOTTOM ASH, medium gray, mostly fine sand, moist,
e silt.
x z '
TTOM ASH, light to medium gray with tan and
xt '
tV�wn,dry, mostly fine to coarse sand with gravel
20
ces.
Y ASH, ra , wet, mostly silt, few fine sand.
BOTTOM ASH, light to medium gray, moist, mostly fi
to coarse sand, few silt.
FLY ASH, dark gray, saturated, mostly silt, few fine to
coarse sand.
Grout
BOTTOM ASH, light green/gray, medium to coarse
sand, moist, loose.
FLY ASH, medium to dark gray, mostly silt, moist,
25
some fine sand.
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.jr
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.
BOTTOM ASH, gray, loose, fine to coarse sand, mois
with small lens of silt and gravel 25.6-25.8 ft.).
30
Interbedded FLY and BOTTOM ASH.
2" Sch. 40 threaded PVC
riser
FLY ASH, dark gray, wet/saturated, silt.
35
Interlayered and interbedded FLY ASH and BOTTOM
ASH layers, recovery only a few inches thick.
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
South ling 29601
ra synTerPhone:Greenvllle,
864 421 9999 PAGE 1 OF 2

PROJECT: Mayo Station WELL / BORING NO: ABMW-03S
PROJECT NO: 1026.105 STARTED: 5/20/15 COMPLETED: 5/20/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012718.52 EASTING: 2030858.24
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.33 ft M.P. ELEV: 500.30 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft TOC TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: E. Black CHECKED BY: J. Wylie
w
p
U
_
Q J
C�
U)
p
DESCRIPTION
LU
<
Wv
OJ D
mO
a n
WELL
CONSTRUCTION
SC
SAND, tan to gray, medium to coarse sand with fine
sand and silt, few small gravel, moist.
MIL
SILT, medium to dark gray, mostly silt, some fine sand,
saturated.
45
SP
SP
ML
SAND, silty, greenish brown (2.5 YR 5/2), little clay,
moist, some roots/or anic matter.
SAND, silty, light yellowish brown )2.5 YR, 614), some
cla , moist, low plasticity.
CLAY, silty, yellowish red (5 YR 5/6), moist, medium
lastici
Bentonite seal
Yellowish red (5 YR 5/6) clay with little silt. From
47.4-48 ft. (SAPROLITE)
MIL
SILT, loose, strong brown, (7.5 YR 5/6), moist, some
sand.
50
MIL
SILT, yellowish brown, (10 YR, 5/8), medium dense,
moist, trace fine sand.
55
—Sand Pack
2" pre -packed well screen
ML
SILT, reddish brown, (5 YR, 5/4), most, trace fine sand,
mottled. (SAPROLITE)
MIL
SILT, yellowish brown, (10 YR, 5/8), moist, trace fine
sand, thinly bedded. (SAPROLITE)
SM
60
SAND, brown, (7.5 YR, 5/4), loose, moist, little clay.
(SAPROLITE)
MIL
SILT, dense, brown, (7.5 YR, 5/4) moist, fine sand,
iron and manganese staining, infrequent relic texture.
(SAPROLITE)
65
MIL
Same as 60.5-65 ft. except dry, more relict structure,
SAPROLITE/PARTIALLY WEATHERED ROCK,
contact at 68 ft.
Borning terminated at 68 ft. Bentonite added to boring
from 61 to 68 ft. to facilitate well construction.
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
L� 148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
South 999 ling 29601
GreenvsynTerra l864
Phone: 421 9lle,
PAGE 2 OF 2

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX B
WELL CONSTRUCTION/BORING LOGS

PROJECT: Mayo Steam Electric Plant
PROJECT NO: 1026.105
WELL / BORING NO: ABMW-02
STARTED: 5/30/15 COMPLETED: 5/31/15
DRILLING COMPANY: Cascade Drilling
DRILLING METHOD: Rotary Sonic
BOREHOLE DIAMETER: 6 IN
NOTES:
NORTHING: 1012778.26 EASTING: 2030477.81
G.S. ELEV: 490.68 ft M.P. ELEV: 492.90 ft
DEPTH TO WATER: 8.52 ft BGS TOTAL DEPTH: 41.2 ft BGS
LOGGED BY: J. Wylie CHECKED BY: E. Black
w
p
U
= c�
Q O
C�
❑
DESCRIPTION
Lu
d
<
O ^
v e
�v
z
OJ p
m0
_
❑ E
a sF7
WELL
CONSTRUCTION
5
10
15
20
25
30
35
No recovery.
Grout
2" Sch. 40 threaded PVC
riser
�— Bentonite seal
—Sand Pack
2" pre -packed well screen
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand.
No recovery.
BOTTOM ASH, dark gray, moist, mostly fine to coarse
sand, some gravel/coal fragments.
BOTTOM ASH, same as above at 8 ft.
FLY ASH, black, saturated, mostly fine sand, little silt,
dense.
BOTTOM ASH, same as above.
No recovery.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
No recovery.
BOTTOM ASH, same as above.
FLY ASH, same as above 12.3 ft.
No recovery.
ML
SILT, tan, moise, mostly silt with some fine to medium
sand.
Mottled tan/gray, dry, very dense, weathered gneiss.
(SAPROLITE)
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, Phone: l864 421- 999aro1ina 29601 PAGE 1 OF 1

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-03
PROJECT NO: 1026.105
STARTED: 5/18/15 COMPLETED: 5/19/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012714.21 EASTING: 2030856.72
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.34 ft M.P. ELEV: 500.17 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 14.16 ft BGS TOTAL DEPTH: 40.5 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
w
p
U
= c�
Q O
C�
❑
DESCRIPTION
Lu
d
<
O ^
v e
�v
z
OJ p
m0
_
❑ E
a sF7
WELL
CONSTRUCTION
No recovery.
BOTTOM ASH, black, dry, loose, mostly fine to medium
sand, poorly graded with some small gravel.
5
No recovery.
FLY ASH, dark gray, wet, silt.
BOTTOM ASH, medium grained, loose, dry, mostly fine to
10
coarse sand with some small gravel.
No recovery.
Hole collapse material.
, dark ray, dr , most) silt, few fine sand.
8.6'.
�LYASH
, dark gray,moist, mostly silt, few clay.
15
Grout
BOTTOM ASH, medium gray, mostly fine sand, moist, little
Silt.
BOTTOM ASH, light to medium gray with tan and brown,
dr , mostl fine to coarse sand with aravel pieces.
20
2" Sch. 40 threaded PVC
riser
FLY ASH, ra , wet, mostIv silt, few fine sand.
BOTTOM ASH, light to medium gray, moist, mostly fine t
coarse sand, few silt.
FLY ASH, dark gray, saturated, mostly silt, few fine to
coarse sand.
BOTTOM ASH, light green/gray, medium to coarse sand,
e.
medium to dark gray, mostly silt, moist, some
25
61FLY—ASHmedium
SH same as 21.3 ft.
same as 23.3 ft.
SH same as 21.3 ft.
same as 23.3 ft.
BOTTOM ASH, gray, loose, fine to coarse sand, moist wi
small lens of silt and ravel 25.6-25.8 ft. .
Interbedded FLY and BOTTOM ASH.
30
FLY ASH, dark gray, wet/saturated, silt.
�— Bentonite seal
35
Interlayered and interbedded FLY ASH and BOTTOM ASH
layers, recovery only a few inches thick.
`'—Sand Pack
2" pre -packed well screen
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-03
PROJECT NO: 1026.105
STARTED: 5/18/15 COMPLETED: 5/19/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012714.21 EASTING: 2030856.72
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.34 ft M.P. ELEV: 500.17 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 14.16 ft BGS TOTAL DEPTH: 40.5 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
U
= c�
W
d
O ^
e
�
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
v
p
a s
CONSTRUCTION
p
C�
�v
m0
45
50
55
60
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-03S
PROJECT NO: 1026.105
STARTED: 5/20/15 COMPLETED: 5/20/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012718.52 EASTING: 2030858.24
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.33 ft M.P. ELEV: 500.30 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft BGS TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: E. Black CHECKED BY: J. Wylie
w
p
U
= c�
Q O
C�
❑
DESCRIPTION
Lu
d
<
O ^
v e
�v
z
OJ p
m0
_
❑ E
a sF7
WELL
CONSTRUCTION
No recovery.
BOTTOM ASH, black, dry, loose, mostly fine to medium
sand, poorly graded with some small gravel.
5
No recovery.
FLY ASH, dark gray, wet, silt.
BOTTOM ASH, medium grained, loose, dry, mostly fine to
10
coarse sand with some small gravel.
No recovery.
Hole collapse material.
=�FLY
=TFLY
ASH, dark gray, dry, mostlsilt, few fine sand.
Same as 8.6 ft.
ASH, dark ra ,moist, most) silt, few cla .
15
BOTTOM ASH, medium gray, mostly fine sand, moist, little
silt.
BOTTOM ASH, light to medium gray with tan and brown,
dry, mostly fine to coarse sand with gravel pieces.
20
FLY ASH, ra , wet, mostIv silt, few fine ==t
BOTTOM ASH, light to medium gray, moist, mostly fine t
coarse sand, few silt.
FLY ASH, dark gray, saturated, mostly silt, few fine to
coarse sand.
BOTTOM ASH, light green/gray, medium to coarse sand,
Grout
moist, loose.
FLY ASH, medium to dark gray, mostly silt, moist, some
25
fine sand.
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.
BOTTOM ASH same as 21.3 ft.
FLY ASH, same as 23.3 ft.
BOTTOM ASH, gray, loose, fine to coarse sand, moist wi
small lens of silt and aravel 25.6-25.8 ft. .
Interbedded FLY and BOTTOM ASH.
30
2" Sch. 40 threaded PVC
FLY ASH, dark gray, wet/saturated, silt.
riser
35
Interlayered and interbedded FLY ASH and BOTTOM ASH
layers, recovery only a few inches thick.
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-03S
PROJECT NO: 1026.105
STARTED: 5/20/15 COMPLETED: 5/20/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012718.52 EASTING: 2030858.24
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 497.33 ft M.P. ELEV: 500.30 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft BGS TOTAL DEPTH: 68.0 ft BGS
NOTES:
LOGGED BY: E. Black CHECKED BY: J. Wylie
w
p
U
= c�
Q O
C�
❑
DESCRIPTION
Lu
d
O ^
0 e
�v
z
OJ p
m0
_
❑ E
a s
WELL
CONSTRUCTION
SC
SAND, tan to gray, medium to coarse sand with fine sand
and silt, few small gravel, moist.
ML
SILT, medium to dark gray, mostly silt, some fine sand,
saturated.
45
SP
SP
ML
SAND, silty, greenish brown (2.5 YR 5/2), little clay, moist
some roots/or anic matter.
SAND, silty, light yellowish brown )2.5 YR, 6/4), some
cla , moist, low lasticit .
Bentonite seal
CLAY, silty, yellowish red (5 YR 5/6), moist, medium
plasticity.
Yellowish red (5 YR 5/6) clay with little silt. From 47.4-48
ft. (SAPROLITE)
ML
SILT, loose, strong brown, (7.5 YR 5/6), moist, some
sand.
50
ML
SILT, yellowish brown, (10 YR, 5/8), medium dense,
moist, trace fine sand.
55
—Sand Pack
2" pre -packed well screen
ML
SILT, reddish brown, (5 YR, 5/4), most, trace fine sand,
mottled. SAPROLITE
( )
ML
SILT, yellowish brown, (10 YR, 5/8), moist, trace fine
sand, thinly bedded. (SAPROLITE)
SM
SAND, brown, (7.5 YR, 5/4), loose, moist, little clay.
(SAPROLITE)
60
ML
SILT, dense, brown, (7.5 YR, 5/4) moist, fine sand, iron
and manganese staining, infrequent relic texture.
(SAPROLITE)
65
ML
Same as 60.5-65 ft. except dry, more relict structure,
SAPROLITE/PARTIALLY WEATHERED ROCK, contact
at 68 ft.
Borning terminated at 68 ft. Bentonite added to boring
from 61 to 68 ft. to facilitate well construction.
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-04
PROJECT NO: 1026.105
STARTED: 5/30/15 COMPLETED: 5/30/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012345.36 EASTING: 2030478.85
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 488.76 ft M.P. ELEV: 491.44 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft BGS TOTAL DEPTH: 60.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
ov
U
= (D
< O
U
U
j
DESCRIPTION
W
Q
U
O^
w
U
z
m �
U
_
o f
a Q
WELL
CONSTRUCTION
No recovery, BOTTOM ASH on surface.
ABMW-4X was
installed as a
FLY ASH (GLEY1 2.5/N), black, dry, dense, mostly fine
sand, few clay.
SAND, sharprpcontact, grey, (10 YR 5/1), moist, moderately
dense, mostly fine to coarse, poorly graded sand, little
silt/clay.
5
replacement well for
ABMW-4. ABMW-4X
is directly adjacent to
ABMW-4 prior
SP
No recovery.
location. Llthology
and well construction
details are similar.
BOTTOM ASH, same as above, except saturated at 8 ft.
10
BOTTOM ASH, same as above except last six inches has
small gravel sized pieces of rock mixed in.
FLY ASH, (GLEY 5/N), saturated, dense to moderately
2
dense, interlayered zones (1-4 in.) thick of poorly sorted
sand, mostly fine sand, little silt.
15
No recovery.
20
2" Sch. 40 threaded PVC
BOTTOM ASH, same as 10-11.8 ft., saturated from
20-22.1 ft.
riser
Grout
FLY ASH, gray, loose, saturated/soupy, mostly fine sand,
little silt, "salt and pepper" color/appearance.
25
No recovery.
30
FLY ASH, same as 15 ft., very saturated/soupy, alternating
layers of fine sand and silt, "salt and pepper" appearance.
35
FLY ASH, same as above.
SynTerra CLIENT: Duke Energy Progress, LLC.
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: ABMW-04
PROJECT NO: 1026.105
STARTED: 5/30/15 COMPLETED: 5/30/15
DRILLING COMPANY: Cascade Drilling
NORTHING: 1012345.36 EASTING: 2030478.85
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 488.76 ft M.P. ELEV: 491.44 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: ft BGS TOTAL DEPTH: 60.0 ft BGS
NOTES:
LOGGED BY: J. Wylie CHECKED BY: E. Black
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
FLY ASH, same as above.
�—Bentonite seal
45
No recovery.
FLY ASH, same as 35 ft.
`—Sand Pack
50
2" pre -packed well screen
FLY ASH, same as 35 ft.
55
No recovery.
ML
SILT/PARTIALLY WEATHERED ROCK, (2.5 YR 4/2),
CL
dark grayish brown, saturated, dense, mostly silt with clay,
little coarse sand grading down to rock fragments in last 8
in. of recovery. sa rolite
60
Boring terminated at 60 ft. Bentonite added to boring from
54 to 60 ft. to facilitate well construction.
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6
PROJECT NO: 1026.105
STARTED: 8/7/18 COMPLETED: 8/8/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013194.33 EASTING: 2030385.13
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.57 ft M.P. ELEV: 488.76 ft
BOREHOLE DIAMETER: 13 and 10 IN
DEPTH TO WATER: 4.41 ft BGS TOTAL DEPTH: 73.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
Lu
j p
a s
CONSTRUCTION
p
C�
<
�v
m0
5
10
15
20
For detailed lithological description see log for AP-6-1-15
Bentonite Grout
25
6" Sch 40 PVC Riser
30
35
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6
PROJECT NO: 1026.105
STARTED: 8/7/18 COMPLETED: 8/8/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013194.33 EASTING: 2030385.13
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.57 ft M.P. ELEV: 488.76 ft
BOREHOLE DIAMETER: 13 and 10 IN
DEPTH TO WATER: 4.41 ft BGS TOTAL DEPTH: 73.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= CDd
IL
Lu
O ^
e
z
OJ
_
❑ E
WELL
w
O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
�v
m0
45
—Bentonite Plug
50
For detailed lithological description see log for AP-6-1_15
(continued)
55
;, —Sand Filter Pack
60
Well Screen
65
ML
CLAY, silty, brown (No recovery, notes describe material
70
found on core barrel.)
Boring terminated at 73' bgs. Borehole collapse to 67' bgs.
Sand backfilled to 65.2' bgs to facilitate well placement.
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-L15
PROJECT NO: 1026.105
STARTED: 8/9/18 COMPLETED: 8/9/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013211 EASTING: 2030383.61
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.33 ft M.P. ELEV: 489.18 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.53 ft BGS TOTAL DEPTH: 65.5 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
W
d O ^
e
�
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION v
p
a s
CONSTRUCTION
p
C�
�v
m0
ASH, mix of bottom ash and fly ash, poorly sorted, silt to 28
5
coarse sand, dark gray
10
No Recovery. 0
15
20
No Recovery. 0
25
` —Bentonite Grout
30
2" Sch 40 PVC Riser
ASH, mix of bottom ash and fly ash, poorly sorted, silt to
coarse sand, dark gray
75
35
FLY ASH, well sorted, silt, light gray
No Recovery.
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-L15
PROJECT NO: 1026.105
STARTED: 8/9/18 COMPLETED: 8/9/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013211 EASTING: 2030383.61
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.33 ft M.P. ELEV: 489.18 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.53 ft BGS TOTAL DEPTH: 65.5 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
W
d O ^
e
�
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION v
p
a s
CONSTRUCTION
p
C�
�v
m0
0
No Recovery. (continued)
45
50
FLY ASH, well sorted, silt, medium gray
55
55
—Bentonite Plug
FLY ASH, well sorted, silt, light gray
60
—Sand Filter Pack
FLY ASH, well sorted, silt, light gray 100
Well Screen
65
Boring terminated at 65.5' bgs.
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-L30
PROJECT NO: 1026.105
STARTED: 8/9/18 COMPLETED: 8/9/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013224.97 EASTING: 2030385.53
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.11 ft M.P. ELEV: 489.18 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.16 ft BGS TOTAL DEPTH: 65.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
= c�
d O ^
e
z
❑ E
WELL
w
Q O
❑
DESCRIPTION Lu
j p
a s
CONSTRUCTION
p
C�
�v
m0
ASH, mixture of bottom ash and fly ash, poorly sorted, fine 28
5
to coarse, dark gray/black to light gray at bottom.
10
No Recovery. 0
15
20
Bentonite Grout
No Recovery. 0
25
30
2" Sch 40 PVC Riser
ASH, mixture of bottom ash and fly ash, poorly sorted, light
gray
36
35
FLY ASH, fine, light gray
ASH, mixture of bottom ash and fly ash, poorly, sorted, light
gray
No Recovery.
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-L30
PROJECT NO: 1026.105
STARTED: 8/9/18 COMPLETED: 8/9/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013224.97 EASTING: 2030385.53
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.11 ft M.P. ELEV: 489.18 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.16 ft BGS TOTAL DEPTH: 65.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
W
d O ^
e
�
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION v
p
a s
CONSTRUCTION
p
C�
�v
m0
0
No Recovery. (continued)
45
50
Bentonite Plug
FLY ASH, very fine, thin layering of light and dark gray 20
55
60
r • —Sand Filter Pack
FLY ASH, very fine, light gray 100
Well Screen
65
Boring terminated at 65.5' bgs.
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
Greenville, South 29601
91ina
s)mTra
erPhone:864 42199PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-M15
PROJECT NO: 1026.105
STARTED: 8/13/18 COMPLETED: 8/13/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013207.44 EASTING: 2030393.94
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.65 ft M.P. ELEV: 489.51 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.59 ft BGS TOTAL DEPTH: 41.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
5
10
Bentonite Grout
15
2" Sch 40 PVC Riser
20
For lithological description see log for AP-6-1-15.
25
30
—Bentonite Plug
35
—Sand Filter Pack
Well Screen
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-M15
PROJECT NO: 1026.105
STARTED: 8/13/18 COMPLETED: 8/13/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013207.44 EASTING: 2030393.94
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.65 ft M.P. ELEV: 489.51 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.59 ft BGS TOTAL DEPTH: 41.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
For lithological description see log for AP-6-1-15.
continued
Boring terminated at 41' bgs.
45
50
55
60
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-M30
PROJECT NO: 1026.105
STARTED: 8/10/18 COMPLETED: 8/10/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013219.6 EASTING: 2030402.87
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.31 ft M.P. ELEV: 489.04 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.46 ft BGS TOTAL DEPTH: 41.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
5
10
—Bentonite Grout
15
2" Sch 40 PVC Riser
20
For lithological description see log for AP-6-1-30.
25
30
—Bentonite Plug
35
—Sand Filter Pack
Well Screen
CLIENT: Duke Energy Progress, LLC.
ra
48 Rver Street, Suite 220 PROJECT LOCATION: Roxboro, NC
148 River
Greenvlle, Souths
999aro1ina 29601
mTerra Phone:l864 421- PAGE 1 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-M30
PROJECT NO: 1026.105
STARTED: 8/10/18 COMPLETED: 8/10/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013219.6 EASTING: 2030402.87
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.31 ft M.P. ELEV: 489.04 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.46 ft BGS TOTAL DEPTH: 41.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
For lithological description see log for AP-6-1-30.
continued
Boring terminated at 41' bgs.
45
50
55
60
65
70
75
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 2 OF 2

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-U15
PROJECT NO: 1026.105
STARTED: 8/13/18 COMPLETED: 8/13/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013198.2 EASTING: 2030400.24
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.65 ft M.P. ELEV: 489.52 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.72 ft BGS TOTAL DEPTH: 18.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
�—Bentonite Grout
5
2" Sch 40 PVC Riser
—Bentonite Plug
For lithological description see log for AP-6-1_15.
10
—Sand Filter Pack
15
Well Screen
Boring terminated at 18' bgs.
20
25
30
35
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

PROJECT: Mayo Steam Electric Plant
WELL / BORING NO: AP-6-U30
PROJECT NO: 1026.105
STARTED: 8/10/18 COMPLETED: 8/10/18
DRILLING COMPANY: Cascade Drilling
NORTHING: 1013202.15 EASTING: 2030414.46
DRILLING METHOD: Rotary Sonic
G.S. ELEV: 486.56 ft M.P. ELEV: 489.46 ft
BOREHOLE DIAMETER: 6 IN
DEPTH TO WATER: 4.66 ft BGS TOTAL DEPTH: 18.0 ft BGS
NOTES:
LOGGED BY: P. Altman CHECKED BY: J. Wylie
U
= c�
Lu
d
O ^
e
z
OJ
_
❑ E
WELL
w
Q O
❑
DESCRIPTION
0
p
a s
CONSTRUCTION
p
C�
<
�v
m0
�—Bentonite Grout
5
2" Sch 40 PVC Riser
—Bentonite Plug
For lithological description see log for AP-6-1_30
10
—Sand Filter Pack
15
Well Screen
Boring terminted at 18.0' bgs.
20
25
30
35
CLIENT: Duke Energy Progress, LLC.
SynTerra
148 River Street, Suite 220 PROJECT LOCATION: Roxboro, NC
1ina 29601
erPhone:864 421-99
s)mTraGreenville, 9PAGE 1 OF 1

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX C
ELECTRONIC DATA FILES - ASH BASIN PUMPING
TEST ANALYTICAL EVALUATION

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
BASELINE HYDROGRAPHS

AP-6
AP-6-1-15
BASELINE
BASELINE
Gl
3 61
2
GJ
3 53
2
o
60
1.5
1
s
o
(IJ 52
N
1.5 s
U
C
U
C
59
0
1
0
51
0
1 0
58
°
CL
50
CL
Q
57
0.5
> 49
0.5
0
'
a
0
'
a
56 -
0
�, 48 -
0
Oy�b O,y4b O,y4�
Ory�b O,y4� O,y0b O,y�b Oy�b Oy�b Oy�b
O,yCb
Oy0b Oyqb O,y�b
O,y�b Otis Otis Otis Otis
Otis Otis Otis
M Precipitation AP-6 Lower Ash
Precipitation AP-6-M15
AP-6-1-30
AP-6-M 15
BASELINE
BASELINE
i
GJ
r+
3 53 2
0
a Qj
Qj
52 1.5
C
°J 51
o =
0 1 0
a
a, 50
s Q
+�
> 49 0.5 a
0 a
Q F
48 - 0
3 do ti� ti� tiC ti0 ti� ti� ti� ti� ti� ti00
o ,yo �o �O �O �O �o ,�o ,�o do tiQ
M Precipitation AP-6-L30
L
G
3 28
2
0
a 27
U
1.5
V,
26
�
o
0
1
0
a
0 25
+�
4
> 24
0.5
Q
0
a
'
a
a 23 -
0
3 ti00 ti� ti�
ti� ti� ti�
ti� ti�
Nob ti�
o o do
,�o ,�O ,�o
,�o ,�O
,�o ,�o Cb\,Vo
\0�)ti\
0) o\ti\ o\�,\
o\�\ C\
o\o\ o\�\ C\\
Precipitation
AP-6-M15
148 RIVER STREET, SUITE 220 APPENDIX D-1
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] BASELINE HYDROGRAPHS
AP-6 , AP-6—L15, AP-6—L30, AND AP-6—M15
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
/�/�Terra MAYO STEAM ELECTRIC PLANT
s /r ■ PROJECTMC. GEE DATE: DUKE ENERGY PROGRESS LLC, ROXBORO, NC
Jv' ' PROJECT MANAGER: J.WYLIE
P:0uke Energy Progress. 1 026\1 05. Mayo Ash Basin GW Assessment Plan�Ash Basin Pumping TesttA.sh Basin Pumping Test ReporhAppendices for ReporhAppendix D - Baseline Hydrographs

AP-6-M30
i
BASELINE
3 28
2
0
a 27
1.5
c
a, 26
o
L
1
`=
=
0
a
a, 25
+�
a°
> 24
0.5
S
0
a
�
a
23
0
3 ti0
ti0
ti0
ti0
tit
ti0 ti0
ti00
1�
ti0
ti00
p
,tip
,tip
,ti0
tip
,tip ,tip
,ti0
ti0
,tip
,ti0
00
w Precipitation AP-6-M30
AP-6-U30
L
BASELINE
3 13
2
0
a 12
1.5
=
o
L
1
0
a
10
�
9
_
0.5
0
a
Q
8
0
tiC
ti0
ti0
tiC
ti0
ti0 ti00
1�
ti0
ti0
tiCb
,ti0
0
,ti0
,ti0
,ti0
Tl ,tip
,ti0
,ti0
,ti0
1
,ti0
Cb
\,gyp\
\,�,\
C5
C5
p\�\ p\D\
p\c�\
p\ca\
cl
C\g
'Precipitation
AP-6-U30
AP-6-LI15
BASELINE
L
4+
13
2
3
0
a 12
w
1.5
V,
c
(U 11
v
0
1
0
a
+�
0 10
0 9
a
'
0.5
v
a
L 8
0
v
ti� ti0 ti0 ti0 ti0 tiC ti0 tit tit ti0 ti00
) ,tip ,tip ,tip ,tip tip tip ,tip ti0 ti0 ti0
%\'V 00\,gyp\ 00\r" �\ti\ \ti\ ci �, 0)x �\�,\ \�\ 0)\�\ �\�,\
MPrecipitation AP-6-U15
0.jLTA 1liI11W
BASELINE
L
17
2
3
0
a 16
1.5
_
15
._
=
o
1
0
a
+�
a, 14
M
s
Q
> 13 0.5
0 a
Gl
a i 12 0
ti0 tiC tit ti� ti� ti� ti� ti� ti� ti� ti00
tip ,tip ,tip ,ti0 ,ti0 tip ,tip ,ti0 ,ti0 ti0 ,tip
�\\,gyp\\,�ti\ �\ti\\ti\ 0)\�,\\�\ c\�,\\�\\�\\�,\
Cb
Precipitation ABMW-2
148 RIVER STREET, SUITE 220 APPENDIX D-2
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] BASELINE HYDROGRAPHS
AP-6 —M30, AP-6—U1S, AP-6—U30, AND ABMW-2
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
/�/�Terra MERG STEAM ELECTRIC PLANT
`--` /r ■ DRAWN BY DATE: DUKE ENERGY PROGRESS LLC, ROXBORO, NC
sy ' PROJECT MANAGER: J. WYLIE
P:\Duke Energy Progress. 1 026\1 05. Mayo Ash Basin GW Assessment Plan�Ash Basin Pumping TesttA.sh Basin Pumping Test ReportS4ppendices for ReporhAppendix D - Baseline Hydrographs

BASELINE
17
2
0
v 16
1.5CID
c
°1 15
o �
i 1 c
a +
v 14
s 'a
13
0 0.5 .v
a
a
12 — ' 0
tiCb ti� ti10 do ti00 ti� ti� ti� ti� ti� ti�
MPrecipitation ABMW-3
148 RIVER STREET, SUITE 220 APPENDIX D-3
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone] BASELINE HYDROGRAPHS
ABMW-3
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
MAYO/�/�Terra NERD STEAM ELECTRIC PLANT
sy/r ■ DRAWN BY: C. BRUCE DATE: JANUARY 2019 DUKE ENERGY PROGRESS LLC, ROXBORO, NC
' PROJECT MANAGER: J. WYLIE
P:0uke Energy Progress. 1 026\1 05. Mayo Ash Basin GW Assessment Plan�Ash Basin Pumping TestVAsh Basin Pumping Test ReporhAppendices for ReportS4ppendix D - Baseline Hydrographs

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX E
STEP -RATE TEST HYDROGRAPH

3i7
cl
w
30
20
10
P-6
STEP TEST
'LDS ', D �4' 00 ,y1' 'L0� ', D N4'
—AP-6 Step Test Pump On —Pump Off
1410
synTerra
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601 APPENDIX E
PHONE [phone]
STEP —RATE TEST HYDROGRAPH
ASH BASIN PUMPING TEST REPORT
www.synterracorp.com MAYO STEAM ELECTRIC PLANT
DRAWN BY: C. BRUCE DATE: JANUARY 2019 DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
PROJECT MANAGER: J. WYLIE
P:\Duke Energy Progress. 1 026\1 05. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Report\Appendices for Report\Appendix E - Step Test Hydrograph

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX F
MANUAL WATER LEVEL READINGS

MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC
DATE: ASH BASIN PUMPING TEST
Well ID
AP-6-L15
AP-6-L30
AP-6-M15
AP-6-M30
AP-6-11.1115
AP-6-1.1130
ABMW-2
ABMW-3
ABMW-3S*
ABMW-4X-*
BMW-4S*
ISMP-1*
Water Level
T, 3
T
q• 8 1
t
i
Time
"T'�
�l/`
`7
/��6�
7 T:p
u
1
�(
�i
jf
�- 1
Water Level
�1
!� l
D O
r �U �j
�
, �
+ � �
9 � Z
-
L� 0
1 r 2
T lb1
Time
09 b
L54
DA51
N 5
M59
01T51
031)
U 41
? 41
Ok4jo
Water Level
�.
�
�``T I
I ,
7-78
// s Z—
07 ) 2�
1 712&
1 ,3 1
Time
% �, r
%70 Jc—s
`��
��7�
�� 5-7
1 o �3
105
10a�
%q4
[ C)
�� 50
water Level
�. 1 �
!-7 1
7. 7-2i
7, e14
7.7e-
7. 79--
-�
d
Time
17-s Z
0-S11
125-)-
12s 3
(2,6-7
Water Level
Uf, aZ•
7,77
7, ? (
741
7.7l
7.7-t-
Time
J aZ
1 SbZ
C.
Water Level
7.76
! -7. 7 Z
7, 7%
7r J-a
7�T+`►
�—
Time
L[c)Z-
1-10
1700
17,50
170
/70
i
Water Level
%.iS
�,?3
7,�7
�/
7,70
C/
7_7a
Time
too'--5
o
«ov
t406
Water Level
' �, �
7 1-7W3
7
7, 7S'
��
^f�QOI=
[ _ 7
771
�-
+
Time
Z (�c7
Z( o
Z j oa
2 LOc)
�lr�'
?,jao
�
Water Level
FS, 15 11
T r �
� r��
i� I
7181
71
I
IMA
7,
tr �
1�1Water
�
'
d9-'
�r
r��
9
ao3
� f5lime
Level
I
Time
Notes.•
All Measurements taken rom below top of casinq
Manual measurements taken every 2 hours
*Take only twice a day - Middle of morninq shift and beginninq of graveyard shift
Page 1 of 1

DATE- C
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC
ASH BASIN PUMPING TEST
Well ID
AP-6
AAPP-6-1-15
AP-6-1-30
AP-6-MIS
AP-6-M�3°01
AP-6--Uj15
AP-6-1.130
AnB,MW-2
ABMW-3
ABMW-3S*
ABMW-4X*
ABM 45*
SMP-1*
Water Level
Time
( 1
Water Level
M110 1
6,04
V .0
f�
,-)
7���
?.-?--
7.
c5C)
`�✓
T.�
10' l�
f
Time
f
?) (�
, P '�
] 1_•f
3a L�'
)
300
Water Level
I 03
'T 5hh�
r1�50
� 1
n,&D
}'�,Time
0-5V1
rr'9,,4q
V ✓oJ
(�
"��®7�
�` (
/11D,gD
—I �a
q-6 5
a
Water Level
Sri 0 5
� . � �
l . S�11
7, C] 1
n
9 , 1
1/�0, 9 1J
1 1 �
►7 �1
1 � I �
q �
d
Time
Q l ti (0
1 1 r, ri q
l / jo
I
`,
t / qQ 1 2-
l/
p�'
V
�y
t4
O1�`1 �]
Water Level
V 1
��jf
9,99
/'' ��1 -"7l�
1, �7�/.
�j
Ql
I -1
IV-1
q�/�f
Irl , qV
i1
I. ib
Time
/
jj$'
Vg07i
Oq 0!
0g0s
/�q,33
I l00_f
(q/�•Ll10f
li"lO
(�1(0,92,
"-1 a(�
0910
q I�—
Oq 14
Water Level
b �0�
9i q -1
� 1
iO�"In
6D
1
I "1 �
1 (• 1
li� 38
� a ql
Time
A 10 (0
1101
(` 01
jl'
11�1 0
igI.,(g�
lit V 1.I�
1 �
i 1 Zq
Water Level
610
�%
!
`
"1.c5�b
q ' -61D
t M
10 I D
r���
11.,I �
1
Time
1 ��
12-5
) ,54
L)L� \
���V
`9b
IN2
1
I� l
Water Level�'r5
L"j7
�. �1
7.77
/. S)
7<
/, e(
16` C� /
'Time
1��/S�
1,� 2�0
�Ac7
1 -0<7
Water Level
/
GiO�
7 7A
7-77
'(.�0a
C71.5--7
1.k�-
^/. 3
�r✓. `4Cy
d�, �O
Time
(po
j�At0
�. /.ffia
i_ 1po
%qci
1706
Water Level
J}^^. $ `i
�l
�n. (P OQ
35
�r^.� 5 5
-rc c,3
�—
r
Time
d 4�
rn��P �,�
�
d $
n,
/�
�t -1
O � a
9, 1 1
�'
�---
��
Notes:
All Measurements taken from below top of casinq
Manual measurements taken every 2 hours
*Take only twice a day - Middle of morninq shift and beqinninq of graveyard shift
Page 1 of 1

DATE:
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC
ASH BASIN PUMPING TEST
EAM
MOWMA'01ME
®
� �
WA
t1
Notes:
All Measurements taken from below top of casing
Manual measurements taken every 2 hours
*Take only twice a day - Middle of morning shift and beginning of graveyard shift
Page 1 of 1

DATE: 6[ -'�'
MAYO STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC Alp-lv-pt►5
ASH BASIN PUMPING TEST - 24-hr Middle Flow Layer
Well ID
AP-6-1-15
AP-6-1-30
AP-6-M15
AP-6-M30
AP-G6-U15
AP-6-U30
ABMqW-2*
AlBMW-3*
ABMW-3S*
ABMW-4X*
Water Level
�.
l \p/�
t9 ° lJ-3
( . 5�
i
`
, I
1 ®�
(P n l
(a
Time
'1�
LO
`�i�i1
65r5
q1 5
37?
Water Level
(D , (a 1
(0 . (v 5
f�iS
r
Co , iv I
-4v p 0
(0, 9 Lo
�--
—
Time
I"3
13
153 0
1 331
1331
Water Level
--
Time
Water Level
In
rat•�2
�.�
-�
_
Time
Water Level
4,15
(�, �j
� `g�e7
—^
�•
,�
Time
°�L O®
10i
I D
aZ I G
I QED
--�
Water Level
�'i
/�
C-�l(p
��YCO
ho•33
b,65
Time
2 1''t
3
A
26
3 3 0
3 P 1
33
Water Level
//�(
r -
�7
( 857
to • 85
--
^
Time
DI Ll
1So
�1 \
01
Water Level
I
rr�,�,
W ;'�.�
°�
�✓
��,
`--
--
Time
6350
®QQ
C93 53
©J 55
Water Level
�U
-
'f • 1 �l?
(!9(((��
l� • U
--
_
Time
C� ��'
`)
0955
v S�a
856,C"
Water Level
l _
t
1 q
it
-�
Time
�L
Notes:
All Measurements taken from below top of casing
Manual measurements taken every 2 hours
*Take only twice a day - Beginning and end of shift
Page 1 of 1

P0.�,Q rc�
MAYO STEAM ELECTRIC PLANT
/ DUKE ENERGY PROGRESS, LLC
DATE: �Z / 1 % ASH BASIN PUMPING TEST - 24-hr Middle Flow Layer
'3 " �—CA-)^—ac
Fes— s(e
Well ID
AP-6-1-15
AP-6-1-30
AP-66--M15
AP-6-rM�30
AP-6-U15
AP-6-U30
ABMW-2*
ABMW-3*
ABMW-3S*
ABMW-4X*
Water Level
Time
p 1'�i�
(� `SI
UG 2`—
Water Level
Time
t'1 Z
V 5
Water Level
Time
A51
1352
t3
46
I/J55
Water Level
1tl.}^��,
ca rl�
G
rt
�/OfI/�
&.13
3�j21�
Time
�—l9J
ILQ
jj'�+1nI1,
1� �
—lo{tE�
NAj
fi%;0
ly�6
I'Tl31
1y5,�-
la3(a
Water Level
Time
Water Level
Time
Water Level
Time
Water Level
IlTime
[iWater Level
Time
Water Level
Time
f
Notes:
All Measurements taken from below top of casing
Manual measurements taken every 2 hours
*Take only twice a day - Beginning and end of shift

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX G
AP-6 36-HOUR ASH BASIN PUMPING TEST
HYDROGRAPHS

AP-6
AP-6-M 15
AP-6 36-HOUR ASH PUMPING TEST
36-HOUR PUMPING TEST
27
2
60
1.5
a,
26
`6
3
50
3
1.5
0
o
a
aYi
1
s
aYi
25
u
40
c
0
0
o
a`
°
a
24
1 a
30
Y
c
23
2-
d
a`
v
0
0.5 a
a
a
0.5
(U
20
°1
3
22
3
0
21 1
4
1 0
10
oti0'
oti�'
oti�' oti�'
oti�'
oti�'
oti0'
oti
oti�'
oti�' oti�' oti�' oN oN oti1'
o\�\ti
\yo\ti
\�ti\ti
\��\ti o\��\ti
\��\ti
o\yh\ti
o\y°\ti
o\o\ti
o\y°\ti
o\yti\ti °\��\ti o\��\ti o\N� \1'\ti
MPrecipitation —AP-6 Pump On
—Pump Off
MPrecipitation —AP-6 M15 Pump On —Pump Off
AP-6-U30
AP-6-1_15
36-HOUR PUMPING TEST
AP-6 36-HOUR ASH PUMPING TEST
11
2
52
2
L
m
10
5
51
3
1.5
3
1.5
0
0
v
V
9
s
c
v
=
v
s
50
c
a
1
a
1 0
:c
�
a,
8
;q
a
a,
49
m
a
A
u
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a
0.5
a`
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7
v
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48
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°
am
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o\�°\ti
o\��'\ti
°\y°\ti
°\tio\
°\titi\ \titi\ \ti3\ C)XN; o\ly o\ti°\
MPrecipitation —AP-6 U30 Pump On
—Pump Off
MPrecipitation —AP-6 L15 Pump On —Pump Off
148 RIVER STREET, SUITE 220 APPENDIX G-1
GREENVILLE, SOUTH CAROLINA 29601
PHONE
864-421-9999 AP-6 36-HOUR ASH PUMPING TEST HYDROGRAPHS
AP-6 , AP-6-M15, AP-6-L30, AND AP-6-MIS
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
STEAM ELECTRIC PLANT
MAYO/�/�Terra
■
DRAWN BY: C. BRUCE DATE: JANUARY 2019 DUKE ENERGY PROGRESS LLC, ROXBORO, NC
NERD
sy/r
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PROJECT
MANAGER: J. WYLIE
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plari Basin Pumping Test\Ash Basin Pumping Test Repo rt\Hppend ices for Reporb Appendix G-AP-636-Hour Pumping Test Hydrographs

AP-6-M30
ABMW-2
36-HOUR ASH PUMPING TEST
36-HOUR PUMPING TEST
27
2
17
2
G1
W
m
16
3
26
3
1.5
1.5
0
0
�
d
v
15
a
s
c
25
1
2
1
a`
ro
a`
m
Y
14
L
24
L
a
0
a
Q
0.5
a
0.5
13
3
23
.°
3
22
0
12
0
oo
�
�
ti
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oti
dti
d� d°
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yyytiyoti
\y
yy
y
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\d
\
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\\\y\yoti
Precipitation —AP-6 M30 Pump On
—Pump Off
IIIIIIIIIIIIiPrecipitation —ABMW-2 Pump On —Pump Off
AP-6-1_30
AP-6-U15
36-HOUR ASH PUMPING TEST
36-HOUR ASH PUMPING TEST
51
2
12
2
Y
L
�
3
50
m
11
3
1.5
1.5
0
0
49
d
10
1
2
s
1 c
a`
w
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a
m
y
48
Q
v
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9
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a
00
a
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2Y
J
;;
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7
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0
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C5\-y\ C5 C\'yn�\ 0) C5
m Precipitation —AP-6 L30 Pump On
—Pump Off
M Precipitation —AP-6 U15 Pump On —Pump Off
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601 APPENDIX G-2
410
PHONE
864-421-9999 AP-6 36-HOUR ASH PUMPING TEST HYDROGRAPHS
AP-6-M30 , ABMW-2, AP-6-L30, AND AP-6-U15
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
�\
sy.
/�/�Terra
DATE:JANUARY2019 DUKE ENERGY PROGRESS LLC ROXBORO NC
/
`'
, ,
PROJECTMC.
PROJECT
GEE:
MANAGER: J. WYLIE /
J`/
P:\Duke Energy Pro--.I.Wl 05. Mayo Ash Basin GW Assessment Plan -As Basin Pumping Tes-Ws Basin Pumping Test Re,.,-W pendi for 11-. ,-ntlix G -AP-6 M-Hour Pumping Test Hytl-o -,hs

11
v
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ABMW-3
36-HOUR PUMPING TEST
M Precipitation —ABMW-3 Pump On —Pump Off
1.5
a
0.5
0
148 RIVER STREET, SUITE 220 APPENDIX G-3
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone] AP-6 36-HOUR ASH PUMPING TEST HYDROGRAPHS
ABMW-3
www.synterracorp.com ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
PROJECT MANAGER
GEE DATE: JANUARY 2019 DUKE ENERGY PROGRESS LLC ROXBORO NC
PROJECT MANAGER: J. WYLIE � �
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping Test\Ash Basin Pumping Test Repo rt\Hppendices for ReportWppendlx G-AP-636-Hour Pumping Test Hydrographe

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
F. 3 \ 0 In:
AP-6-M 15 24-HOUR ASH BASIN PUMPING
TEST HYDROGRAPHS

AP-6-M 15
AP-6-M 30
24-HOUR PUMPING TEST
24-HOUR PUMPING TEST
50
3 40
2
28
m 27
2
1.5
3
1.5
0
0
0
v
a
a
26
v
v 30
E
a
1
• 0
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0
0
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0\titi�
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o\ti\ti\ti\ti\ti\3
mPrecipitation—AP-6-M15
Pump On
—Pump Off
MPrecipitation —AP-6 M30 Pump On
—Pump Off
AP-6-U30
AP-6-1-15
24-HOUR PUMPING TEST
24-HOUR PUMPING TEST
12
2
53
2
i
01
m 11
G1
52
m
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m Precipitation —AP-6
U30 Pump On —Pump
Off
■ Precipitation —AP-6 L15 —Pump Off
Pump On
148 RIVER STREET, SUITE 220
APPENDIX H-1
GREENVILLE, SOUTH CAROLINA 29601
AP-6-MIS 24-HOUR ASH BASIN
,tip
PHONE[phone]
PUMPING TEST HYDROGRAPHS
AP-6
M15 , AP-6-M30, AP-6-U30, AND AP-6-L15
www.synterracorp.com
ASH BASIN PUMPING TEST REPORT
MAYONERD STEAM ELECTRIC PLANT
synTerra
DATE JANUARV2019
DRAWN C. MANAGER
PROJECT MANAGER: J.WYLIE DUKE ENERGY PROGRESS LLC, ROXBORO, NC
P'.\Duke Energy PrNr.. 1026\105. Mayo Ash Basin GW Assessment Plmn ,h Basin Pumping Te51WSh Basin Pumping T- ReportWppendi— for ReportWppendlx H - AP-6-M15 24-Hour Pumping Test Hydrogr,phs

AP-6
ABMW-2
24-HOUR PUMPING TEST
24-HOUR PUMPING TEST
57
2
18
2
�
56
L
d
; 17
3
1.5
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1.5
0
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55
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� 15
>
54
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a
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53
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0
13
0
oti�'
oti�'
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oti00
oti00
oti'l
oti00
otioti00 oti0' oti00 otilb
Precipitation
—AP-6 Pump On —Pump
Off
■ Precipitation —ABMW-2 Pump On —Pump Off
AP-6-L30
AP-6-U 15
24-HOUR
PUMPING TEST
24-HOUR PUMPING TEST
53
2
13
- 2
52
12
3
1.5
3 1.5
0
0
v
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(b\
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m Precipitation —AP-6
L30 Pump On
—Pump Off
■ Precipitation —AP-6 U15 Pump On —Pump Off
148 RIVER STREET, SUITE 220 APPENDIX H-2
GREENVILLE, SOUTH CAROLINA 29601 AP-6-MIS 24-HOUR ASH BASIN
,tipwww.synterracorp.com
PHONE[phone] PUMPING TEST HYDROGRAPHS
AP-6 , ABMW-2, AP-6-00, AND AP-6-U15
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DRAWN BY C. BRUCE DATE: JANUARV2019
synTerra
PROJECT MANAGER: 1.WlUE DUKE ENERGY PROGRESS LLC, ROXBORO, NC
P'.\Duke Energy Progress.1026\106. Mayo Ash Basin GW Assessment Plan\Ash Basin Pumping TesiWsh Basin Pumping Tesi ReportWppendlces for ReportWppendix H-AP-6-Mi6 24-Hour Pumping Tesi Hydrographs

ABMW-3
24-HOUR PUMPING TEST
12
i
� 11
3
w
0
v
910
N
0
O
v 8
7
oti00 oN QN, oN oN QN,
M Precipitation —ABMW-3 Pump On —Pump Off
1610
synTerra
1.5
a
0.5
0
148 RIVER STREET, SUITE 220
APPENDIX H-3
GREENVILLE, SOUTH CAROLINA 29601
AP-6-MIS 24-HOUR ASH BASIN
PHONE[phone]
PUMPING TEST HYDROGRAPHS
ABMW-3
www.synterracorp.com
ASH BASIN PUMPING TEST REPORT
DRAWN BY: C. BRUCE DATE: JANUARY 2019
MAYO STEAM ELECTRIC PLANT
PROJECT MANAGER: J. WYLIE
DUKE ENERGY PROGRESS LLC, ROXBORO, NC
P'.\Duke Energy PrNr.. 1026\105. Mayo Ash Basin GW Assessment Plmn ,h Basin Pumping Te51WSh
Basin Pumping Te ReportWppendi-, for ReportWppendix H-AP-6-M15 24-Hour Pumping Test Hydrographs

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX I
BAROMETRIC PRESSURE GRAPHS

30.0 -
= 29.8 -
29.6
N 29.4
IL 29.2
29.0
2
m 28.8
i0.lr.3
ABMW-2
L 17.6
a�
c>j
17.2
5
a) 16.8
a�
0 16.4
n
0 16.0
a
a) 15.6
M
3: 15.2
08/27/18 09/03/18 09/10/18 09/17/18 09/24/18 10/01/18 10/08/18 10/15/18
- Water Above Probe (feet) Pump On
- Barometric Pressure (in/Hg) Pump Off
- Precipitation (inches)
0.5
0.4
m
0.3
c
0
0.2
a
U
NEW
ME
30.0 -
= 29.8 -
29.6
29.4
IL 29.2
29.0
0
M 28.8
00
MZ-41M
ABMW-3
2 10.4
a
0
10.0
^L,
W
9.6
0.5
0.4
m
0.3
c
0
0.2
a
U
NEW
MC
08/27/ 18 09/03/ 18 09/ 10118 09117/ 18 09/24/18 10/01 / 18 10108/ 18 10/ 15/ 18
- Water Above Probe (feet) Step Drawdown Test - Pump On
- Barometric Pressure (inift Step Drawdown Test -Pump Off
- Precipitation (inches)
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601 APPENDIX I
PHONE[phone] ABMW-2 AND ABMW-3
BAROMETRIC PRESSURE GRAPHS
www.synterracorp.com MAYO STEAM ELECTRIC PLANT
DRAWN BY: C. BRUCE DATE: JANUARY 2019 DUKE ENERGY PROGRESS LLC, ROXBORO, NC
PROJECT MANAGER: J. WYLIE
P:\Duke Energy Progress.1026\105. Mayo Ash Basin GW Assessment Plari Basin Pumping Test\Ash Basin Pumping Test Report\FINAL FOR DUKE January 28 20191Appendices

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX 3
VERTICAL HYDRAULIC GRADIENT DATA GRAPHS

Vertical Hydraulic Gradient Between AP-6-U15 & AP-6-M15
Vertical Hydraulic Gradient Between AP-6-M15 & AP-6-1_15
0.01
0.03
0.025
c
0.005
0.02
�
v
01
v
0.015
m
v
0
> 0.01 —
>
x
�
•.
x
v 0.005
-0.005
0
-0.005
-0.01
-0.01
Otis O,�
Otis O,� Otis
O,�
O,�
O,� Otis O,$ O,� O,� Otis
Oti$ O,� O,� O,�
o�\ti,\\'L
o�\ti,L\'L of\ti,\\'L y°\,L\'L
'y°\,\\'L
,y0\ti,L\'L
�\tip\'L °'\,L\'L °�\,\\'L o�\ti,L\'L ol\tip\'L o5'L
of\ti,\\'L y°\,L\'L y° ,y0\ti,L\'L
—Vert. Gradient (AP-6-U15 & AP-6-M15)
—AP-6: Pump On
—Vert. Gradient (AP-6-M15 & AP-6-L15)
—AP-6: Pump On
—AP-6: Pump Off
—AP-6-M15: Pump On
—AP-6: Pump Off
—AP-6-M15: Pump On
—AP-6-M15: Pump Off
• Vert. Gradient: Manual Measuerments (AP-6-U15 & AP-6-M15)
—AP-6-M15: Pump Off
• Vert. Gradient: Manual Measuerments (AP-6-M15 & AP-6-L15)
Vertical Hydraulic Gradient Between AP-6-U30 & AP-6-M30
Vertical Hydraulic Gradient Between AP-6-M30 & AP-6-L30
0.01
0.01
c
0.005
JL
0.005 —
c
w
v
'a
R
v
m
�
V
m 0
2
>
x
0
v
x
N
l6
U
W
.Y
j .
>
0.005
-0.005 -
-0.01
-0.01
oti� oti� oti$ oti�b oti� oti�
tip\�
oti�' oti� oti� oti�
C)C -1\ti
ti
ti
—Vert. Gradient (AP-6-U30 & AP-6-M30)
—AP-6: Pump On
—Vert. Gradient (AP-6-M30 & AP-6-1_30)
—AP-6: Pump On
—AP-6: Pump Off
—AP-6-M15: Pump On
—AP-6: Pump Off
—AP-6-M15: Pump On
—AP-6-M15: Pump Off
. Vert. Gradient: Manual Measuerments (AP-6-U30 & AP-6-M30)
—AP-6-M15: Pump Off
. Vert. Gradient: Manual Measuerments (AP-6-M30 & AP-6-1_30)
148 RIVER STREET, SUITE 220
GREENVILLE, SOUTH CAROLINA 29601
PHONE [phone]
APPENDIX 3
VERTICAL HYDRAULIC GRADIENT DATA GRAPHS
ASH BASIN PUMPING TEST REPORT
www.synterracorp.com
MAYO STEAM ELECTRIC PLANT
DRAWN BY: C.BRUCE DATE: JANUARY 2019
DUKE ENERGY PROGRESS LLC, ROXBORO, NC
PROJECT MANAGER: J. WYLIE
synTerra
P:\Duke Energy Pmgress.1026\106. Mayo Ash Basin GW Assessment PlanWsh Basin Pumping Tas A,h Basin Pumping Test Rep,WAppendlces for Rep,WAppendiz I - Vertical Gradient

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX K
FIELD PARAMETER DATA GRAPHS

Specific Conductance
Temperature
525
35
U520
30
515
v
25
i
v
= 510
m
3
20
u
505
m
=
500
v
CL
15
10
495
u
u
5
v 490
485
0
—
N1b 310 tiN 1ti 00 R� 36 '1 P 1ti
R$ 36 LD yy 00 A� 36 ti�
1ti
H
$N.
005. tiN. ,)- a° 0N. 0� ,N. ,)••
$N•
0C-tip. ,�'�N- "C•- ,°'
tip•'
p
Oy
7.95
\"O\�O�
\ti0\
�
,O\'o ,0\'L°-0 \�,\�O� \tip\�O� \y1\�°� ,�\ti°�� ,y\ti°��
c)\ c)\ � C�\ o�\
\�O\�O�
\y0\�O�
�
,O\LO�� ,0\L°�� \��\�O� \y�\�°� \y'1•\�°� ,ti\�°�� �v\�O�$
'�\ o'\ � � C)\
7.9
Specific Conductance
Temperature
7.85
7.8
7.75
=
CL 7.7
7.65
7.6
7.55
7.5
Dissolved Oxygen
Oxidation -Reduction Potential
N. C).1
N.') 1 C'_' o°° ��� 0'36 N-
0.9
0
J
\y0\�°ti4((���\yy0\10\��\����\�°yg(�\��\YO�q\�°'$1\�O�q�1
l Cl ()\
QJ\ l J J
0.7
-50
p Fi
-100
0.5
�
a
E
x
-150
0.3
oac
O
-200
0.1
o
-250
-0.1
-
-300
0
6 R L O 0 6 R
L
L
Nob3�O L� 1ti 00 D`b 3rO LCk titi
$D
��' tiD tip'• $O $D ��' tiD tip'
N_
C•3 Doti �•ti QiO IN- C.-
C)
y
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c�\ti0\y°�� 9\��\�O� 9\��\�°� °�\�"'\�° o�\tip\�°� o)\tip\T°�$
o)\�°\';
c�\ )\�O�
o)\��\�O� c�\��\"00
o�\ti'\T gs)&00
\�O\�°�$ \�°\�°��
Dissolved Oxygen
ORP
148 RIVER STREET, SUITE 220
APPENDIX K
GREENVILLE, SOUTH CAROLINA 29601
PHONE[phone]
FIELD PARAMETER DATA GRAPHS
AP-6 36-HOUR PUMPING TEST
www.synterracorp.com
ASH BASIN PUMPING TEST REPORT
MAYO STEAM ELECTRIC PLANT
DRAWN BY 1.ALTMAN DATE DECEMBER2016
DUKE ENERGY PROGRESS, LLC, ROXBORO, NC
synTerra
PROJECT MANAGER: J. WYLIE
P:\Duke Energy Progress. 1026\105. Mayo Ash Basin GW Assessment PlamAsh Basin Pumping Test\Appendices for Report\Appendix I - Field Parameters\Appendix I - Field Parameter Data
Graphs.pptx

Ash Basin Pumping Test Report January 2019
Mayo Steam Electric Plant SynTerra
APPENDIX L
ANALYTICAL LABORATORY REPORTS
ELECTRONIC COPY

DUKE Analytical Laboratory
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
Order Number: J18090153
Project Name: MAYO STEAM - PUMP TEST
Customer Name(s): Kim Witt, Bryan Moeller, Synterra
Customer Address: Mayo Steam Plant
10660 Boston Road
Roxboro,North Carolina 27574
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: Date: 10/1 /2018
(Signature) Pee,Wgendall
_F+1
P
Program Comments:
Please contact the Program Manager (Peggy Kendall) with any questions regarding this report.
Data Flags & Calculations:
Page 1 of 57
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package, Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub -contracted Laboratory Results, Customer Specific Data Sheets, Reports &
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody (COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR) Certificate #248, South Carolina
(DHEC) Laboratory ID # 99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions:
Collection
Sample ID Plant/Station Date and Time Collected By
2018028160 MAYO STEAM 06-Sep-18 4:15 PM Synterra
1 Total Samples
Page 2 of 57
Sample Description
AP-6

Page 3 of 57
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. F Yes No
All laboratory QA/QC requirements are acceptable. �- Yes ❑ No
Report Sections Included:
d❑ Job Summary Report
❑ Sample Identification
0 Technical Validation of Data Package
❑ Analytical Laboratory Certificate of Analysis
❑ Analytical Laboratory QC Report
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑ Chain of Custody
❑ Electronic Data Deliverable (EDD) Sent Separatel
Reviewed By: Peggy Kendall Date: 10/1/2018

Certificate of Laboratory Analysis Page 4 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Site: AP-6 SamDle #: 2018028160
Collection Date: 09/06/2018 04:15 PM Matrix: GW WW
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
ALKALINITY - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete Vendor Method V_PACE
NITRITE + NITRATE (COLORIMETRIC) - 018090401
Nitrite + Nitrate (Colorimetric) < 0.01 mg-N/L
0.01
1
EPA 353.2
09/20/2018 11:18
LSTARLI
TOTAL PHOSPHORUS (COLORIMETRIC) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
TOTAL PHOSPHORUS DISSOLVED (COLORIMETRIC) - (Analysis Performed by
Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
HEXAVALENT CHROMIUM Cr(VI) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
INORGANIC IONS BY IC - 018090171
Chloride 25 mg/L
1
10
EPA 300.0
09/12/2018 14:04
BGN9034
Fluoride 0.60 mg/L
0.1
1
EPA 300.0
09/12/2018 14:04
BGN9034
Sulfate 8.1 mg/L
0.1
1
EPA 300.0
09/12/2018 14:04
BGN9034
MERCURY (COLD VAPOR) IN WATER - 018090452
Mercury (Hg) < 0.05 ug/L
0.05
1
EPA 245.1
09/21/2018 13:29
DMFRANC
Mercury Dissolved (cold vapor) in Water (Filtered) - 018090453
Mercury (Hg) < 0.05 ug/L
0.05
1
EPA 245.1
09/21/2018 12:26
DMFRANC
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - 018090178
Aluminum (Al) 0.031 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3
Barium (Ba) 0.257 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3
Boron (B) 4.36 mg/L
0.05
1
EPA 200.7
09/13/2018 17:31
MHALL3
Iron (Fe) 0.790 mg/L
0.01
1
EPA 200.7
09/13/2018 17:31
MHALL3
Lithium (Li) 0.417 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3
Manganese (Mn) 0.633 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3
Strontium (Sr) 1.17 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3
Zinc (Zn) 0.019 mg/L
0.005
1
EPA 200.7
09/13/2018 17:31
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090153
Site: AP-6
Collection Date: 09/06/2018 04:15 PM
Sample #: 2018028160
Matrix: GW WW
Page 5 of 57
Analyte
Result
Units
Qualifiers RDL
DF
Method
Analysis Date/Time
Analyst
TOTAL RECOVERABLE METALS BY ICP - Q18090176
Aluminum (Al)
0.546
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
Barium (Ba)
0.276
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
Boron (B)
4.50
mg/L
0.05
1
EPA 200.7
09/13/2018 16:50
MHALL3
Calcium (Ca)
59.7
mg/L
M4 0.01
1
EPA 200.7
09/13/2018 16:50
MHALL3
Iron (Fe)
1.58
mg/L
0.01
1
EPA 200.7
09/13/2018 16:50
MHALL3
Lithium (Li)
0.434
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
Magnesium (Mg)
17.5
mg/L
0.1
20
EPA 200.7
09/13/2018 16:50
MHALL3
Manganese (Mn)
0.655
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
Potassium (K)
11.8
mg/L
0.1
1
EPA 200.7
09/13/2018 16:50
MHALL3
Sodium (Na)
10.0
mg/L
B2 0.05
1
EPA 200.7
09/13/2018 16:50
MHALL3
Strontium (Sr)
1.20
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
Zinc (Zn)
0.040
mg/L
0.005
1
EPA 200.7
09/13/2018 16:50
MHALL3
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
- 018090179
Antimony (Sb)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Arsenic (As)
360
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Beryllium (Be)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Cadmium (Cd)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Chromium (Cr)
1.05
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Cobalt (Co)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Copper (Cu)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Lead (Pb)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Molybdenum (Mo)
564
ug/L
10
10
EPA 200.8
09/12/2018 20:45
CWSPEN3
Nickel (Ni)
2.17
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Selenium (Se)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Thallium (TI) Low Level
< 0.2
ug/L
0.2
1
EPA 200.8
09/12/2018 20:45
CWSPEN3
Vanadium (V) Low Level
3.01
ug/L
0.3
1
EPA 200.8
09/12/2018 20:45
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090153
Site: AP-6
Collection Date: 09/06/2018 04:15 PM
Analyte
Result
Units Qualifiers
RDL
TOTAL RECOVERABLE METALS BY ICP-MS - Q18090177
Antimony (Sb)
< 1
ug/L
1
Arsenic (As)
418
ug/L
1
Beryllium (Be)
< 1
ug/L
1
Cadmium (Cd)
< 1
ug/L
1
Chromium (Cr)
8.87
ug/L
1
Cobalt (Co)
1.12
ug/L
1
Copper (Cu)
2.88
ug/L
1
Lead (Pb)
< 1
ug/L
1
Molybdenum (Mo)
580
ug/L
10
Nickel (Ni)
5.84
ug/L
1
Selenium (Se)
< 1
ug/L
1
Thallium (TI) Low Level
< 0.2
ug/L
0.2
Vanadium (V) Low Level
5.85
ug/L
0.3
RADIOLOGICAL - (Analysis Performed by GEL)
Vendor Parameter
Complete
SULFIDE - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
TOTAL DISSOLVED SOLIDS - Q18090142
TDS
320
mg/L
25
Total Carbon - Q18090221
TOC
7.5
mg/L
0.2
TOTAL SUSPENDED SOLIDS - Q18090139
TSS
14
mg/L
5
Sample #: 2018028160
Matrix: GW WW
Page 6 of 57
DF
Method
Analysis Date/Time
Analyst
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
10
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
1
EPA 200.8
09/12/2018 23:05
CWSPEN3
Vendor Method v_GEL
Vendor Method V_PACE
1 SM2540C 09/11/201814:00 Mgigant
2 SM5310C/EPA9060A 09/13/201811:05 CJEllio
1 SM2540D 09/11/2018 08:30 Mgigant
Qualifiers:
132 Target analyte was detected in Method/Prep Blank(s) at a concentration greater than 1/2 the reporting limit
but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance
purposes.
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 7 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090401 C_NO2NO3 NITRITE + NITRATE (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Nitrite + Nitrate
-0.0056
-0.0056
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Nitrite + Nitrate
0.119
1.19
(Colorimetric)
MS # 1
Parameter
Measured
Final
Nitrite + Nitrate
0.546
0.546
(Colorimetric)
MSD # 1
Parameter
Measured
Final
Nitrite + Nitrate
0.548
0.548
(Colorimetric)
Units: Dil RDL Relative Concentration Qualifier
mg-N/L 1 0.01 < 1/2 RDL
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg-N/L
10
1.21
98.6 90
110
Parent Sample:
J18090461
-- 2018029611
Units:
DiI
Spike
% Recovery LCL
UCL
Qualifier
mg-N/L
1
0.25
97.9 90
110
Parent Sample:
J18090461
-- 2018029611
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
mg-N/L
1
0.25
98.6 90
110
0.311

Certificate of Laboratory Analysis Page 8 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090171 Dionex INORGANIC IONS BY IC
Blank # 1
LCS # 1
MS # 1
MSD # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Chloride
0.0289
0.0289
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
4.93
4.93
mg/L
1
5
98.6 90
110
Fluoride
4.95
4.95
mg/L
1
5
99.1 90
110
Sulfate
4.93
4.93
mg/L
1
5
98.7 90
110
Parent Sample:
J18080642
-- 2018027070
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
2.91
14.5
mg/L
5
10
99.1 80
120
Fluoride
1.8
1.8
mg/L
1
2
84.4 80
120
Sulfate
8.26
8.26
mg/L
1
2
97.8 80
120
Parent Sample:
J18080642
-- 2018027070
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD
Qualifier
Chloride
2.89
14.5
mg/L
5
10
98.3 80
120
0.76
Fluoride
1.8
1.8
mg/L
1
2
84.3 80
120
0.107
Sulfate
8.27
8.27
mg/L
1
2
98.3 80
120
0.505

Certificate of Laboratory Analysis Page 9 of 57
This report shall not be reproduced, except in full.
Order # J18090153
Level 11 QC Summary
Q18090452 HG 245.1 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter
Measured
Final
Mercury (Hg)
0.007
0.007
Blank # 2
Parameter
Measured
Final
Mercury (Hg)
0.013
0.013
LCS # 1
LCS # 2
Parameter Measured Final
Mercury (Hg) 2.07 2.07
Parameter Measured Final
Mercury (Hg) 2.02 2.02
MS # 1
Parameter Measured Final
Mercury (Hg) 0.835 0.835
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.818 0.818
Units:
Dil
RDL
Relative Concentration
Qualifier
ug/L
1
0.05
< 1/2 RDL
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
103 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
2
101 85
115
Parent Sample:
J18090001
-- 2018027494
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
1
82.7 70
130
Parent Sample:
J18090001
-- 2018027494
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
1
1
81 70
130
2.08

Certificate of Laboratory Analysis Page 10 of 57
This report shall not be reproduced, except in full.
Order # J18090153
Level 11 QC Summary
Q18090453 HG 245.1 Dissolved Mercury Dissolved (cold vapor) in Water (Filtered)
Blank # 1
Parameter Measured Final
Mercury (Hg) 0.007 0.007
LCS # 1
Parameter Measured Final
Mercury (Hg) 2.07 2.07
MS # 1
Parameter Measured Final
Mercury (Hg) 0.68 0.68
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.687 0.687
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
103 85
115
Parent Sample:
J18090212 -- 2018028467
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
1
67.5 70
130
M2
Parent Sample:
J18090212 -- 2018028467
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
1
1
68.2 70
130
1.03 M2
Qualifiers:
M2 Matrix Spike and/or Matrix Spike Duplicate recovery was Low: the associated Laboratory Control Spike
(LCS) was acceptable.

Certificate of Laboratory Analysis Page 11 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090178 ICP_DIS_TRM
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.000873
0.000873
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000085
-0.000085
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.00365
0.00365
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.00045
0.00045
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.00183
0.00183
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
0.000178
0.000178
mg/L
1
0.005
< 1/2 RDL
Strontium (Sr)
-0.000001
-0.000001
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.000711
0.000711
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
4.91
4.91
mg/L
1
5
98.1
85
115
Barium (Ba)
4.97
4.97
mg/L
1
5
99.4
85
115
Boron (B)
4.74
4.74
mg/L
1
5
94.7
85
115
Iron (Fe)
4.78
4.78
mg/L
1
5
95.6
85
115
Lithium (Li)
4.73
4.73
mg/L
1
5
94.5
85
115
Manganese (Mn)
4.8
4.8
mg/L
1
5
96
85
115
Strontium (Sr)
4.9
4.9
mg/L
1
5
97.9
85
115
Zinc (Zn)
4.94
4.94
mg/L
1
5
98.9
85
115
MS # 1
Parent Sample:
J18090153
-- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.14
5.14
mg/L
1
5
102
70
130
Barium (Ba)
5.52
5.52
mg/L
1
5
105
70
130
Boron (B)
9.65
9.65
mg/L
1
5
106
70
130
Iron (Fe)
5.85
5.85
mg/L
1
5
101
70
130
Lithium (Li)
5.57
5.57
mg/L
1
5
103
70
130
Manganese (Mn)
5.67
5.67
mg/L
1
5
101
70
130
Strontium (Sr)
6.46
6.46
mg/L
1
5
106
70
130
Zinc (Zn)
5.14
5.14
mg/L
1
5
102
70
130
MSD # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (Al)
5
5
mg/L
1
5
99.4
70
130
2.86
Barium (Ba)
5.34
5.34
mg/L
1
5
102
70
130
3.35
Boron (B)
9.36
9.36
mg/L
1
5
99.9
70
130
3.07
Iron (Fe)
5.67
5.67
mg/L
1
5
97.7
70
130
3
Lithium (Li)
5.35
5.35
mg/L
1
5
98.6
70
130
3.99
Manganese (Mn)
5.49
5.49
mg/L
1
5
97
70
130
3.3
Strontium (Sr)
6.19
6.19
mg/L
1
5
100
70
130
4.19

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090178 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Page 12 of 57
MSD # 1 Parent Sample: J18090153 -- 2018028160
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Zinc (Zn) 4.98 4.98 mg/L 1 5 99.3 70 130 3.14

Certificate of Laboratory Analysis Page 13 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090176 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.00106
0.00106
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000098
-0.000098
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.0015
0.0015
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.0027
0.0027
mg/L
1
0.01
< 1/2 RDL
Iron (Fe)
0.00221
0.00221
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.00172
0.00172
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
0.00112
0.00112
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
0.000474
0.000474
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
0.00262
0.00262
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
0.0325
0.0325
mg/L
1
0.05
> 1/2 RDL B2
Strontium (Sr)
-0.000008
-0.000008
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.00162
0.00162
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (Al)
4.93
4.93
mg/L
1
5
98.6
85
115
Barium (Ba)
5.03
5.03
mg/L
1
5
101
85
115
Boron (B)
4.82
4.82
mg/L
1
5
96.4
85
115
Calcium (Ca)
4.9
4.9
mg/L
1
5
98.1
85
115
Iron (Fe)
4.84
4.84
mg/L
1
5
96.8
85
115
Lithium (Li)
4.79
4.79
mg/L
1
5
95.9
85
115
Magnesium (Mg)
5.09
5.09
mg/L
1
5
102
85
115
Manganese (Mn)
4.81
4.81
mg/L
1
5
96.1
85
115
Potassium (K)
4.96
4.96
mg/L
1
5
99.3
85
115
Sodium (Na)
5.01
5.01
mg/L
1
5
100
85
115
Strontium (Sr)
4.91
4.91
mg/L
1
5
98.1
85
115
Zinc (Zn)
4.97
4.97
mg/L
1
5
99.5
85
115
MS # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (Al)
5.59
5.59
mg/L
1
5
101
70
130
Barium (Ba)
5.56
5.56
mg/L
1
5
106
70
130
Boron (B)
9.6
9.6
mg/L
1
5
102
70
130
Calcium (Ca)
65.3
65.3
mg/L
1
5
113
70
130 M4
Iron (Fe)
6.57
6.57
mg/L
1
5
99.7
70
130
Lithium (Li)
5.59
5.59
mg/L
1
5
103
70
130
Magnesium (Mg)
1.16
23.1
mg/L
20
5
113
70
130
Manganese (Mn)
5.69
5.69
mg/L
1
5
101
70
130
Potassium (K)
17.1
17.1
mg/L
1
5
106
70
130
Sodium (Na)
15.4
15.4
mg/L
1
5
108
70
130

Certificate of Laboratory Analysis Page 14 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090176 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MS # 1
Parameter
Measured
Strontium (Sr)
6.45
Zinc (Zn)
5.13
MSD # 1
Parameter
Measured
Aluminum (Al)
5.59
Barium (Ba)
5.52
Boron (B)
9.59
Calcium (Ca)
66.6
Iron (Fe)
6.54
Lithium (Li)
5.5
Magnesium (Mg)
1.17
Manganese (Mn)
5.66
Potassium (K)
17.2
Sodium (Na)
15.5
Strontium (Sr)
6.34
Zinc (Zn)
5.09
Parent Sample:
J18090153
-- 2018028160
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
6.45
mg/L
1
5
105 70
130
5.13
mg/L
1
5
102 70
130
Parent Sample:
J18090153
-- 2018028160
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
5.59
mg/L
1
5
101 70
130
0.0358
5.52
mg/L
1
5
105 70
130
0.74
9.59
mg/L
1
5
102 70
130
0.0417
66.6
mg/L
1
5
138 70
130
1.87 M4
6.54
mg/L
1
5
99.3 70
130
0.336
5.5
mg/L
1
5
101 70
130
1.66
23.3
mg/L
20
5
117 70
130
0.864
5.66
mg/L
1
5
100 70
130
0.529
17.2
mg/L
1
5
109 70
130
0.875
15.5
mg/L
1
5
111 70
130
0.983
6.34
mg/L
1
5
103 70
130
1.7
5.09
mg/L
1
5
101 70
130
0.822
Qualifiers:
132 Target analyte was detected in Method/Prep Blank(s) at a concentration greater than 1/2 the reporting limit
but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance
purposes.
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 15 of 57
This report shall not be reproduced, except in full.
Order # J18090153
Level II QC Summary
Q18090179 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil RDL
Relative Concentration Qualifier
Antimony (Sb)
-0.006
-0.006
ug/L
1 1
< 1/2 RDL
Arsenic (As)
-0.003
-0.003
ug/L
1 1
< 1/2 RDL
Beryllium (Be)
-0.068
-0.068
ug/L
1 1
< 1/2 RDL
Cadmium (Cd)
0.007
0.007
ug/L
1 1
< 1/2 RDL
Chromium (Cr)
0.058
0.058
ug/L
1 1
< 1/2 RDL
Cobalt (Co)
0.006
0.006
ug/L
1 1
< 1/2 RDL
Copper (Cu)
-0.095
-0.095
ug/L
1 1
< 1/2 RDL
Lead (Pb)
-0.013
-0.013
ug/L
1 1
< 1/2 RDL
Molybdenum (Mo)
0.036
0.036
ug/L
1 1
< 1/2 RDL
Nickel (Ni)
-0.026
-0.026
ug/L
1 1
< 1/2 RDL
Selenium (Se)
0.042
0.042
ug/L
1 1
< 1/2 RDL
Thallium (TI) Low Level
0.044
0.044
ug/L
1 0.2
< 1/2 RDL
Vanadium (V) Low Level
0.113
0.113
ug/L
1 0.3
< 1/2 RDL
LCS # I
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
48.2
48.2
ug/L
1
50
96.4
85
115
Arsenic (As)
49.1
49.1
ug/L
1
50
98.3
85
115
Beryllium (Be)
50.5
50.5
ug/L
1
50
101
85
115
Cadmium (Cd)
49.2
49.2
ug/L
1
50
98.4
85
115
Chromium (Cr)
49.5
49.5
ug/L
1
50
99.1
85
115
Cobalt (Co)
49.5
49.5
ug/L
1
50
98.9
85
115
Copper (Cu)
49.3
49.3
ug/L
1
50
98.7
85
115
Lead (Pb)
47.9
47.9
ug/L
1
50
95.8
85
115
Molybdenum (Mo)
48.9
48.9
ug/L
1
50
97.9
85
115
Nickel (Ni)
49.2
49.2
ug/L
1
50
98.5
85
115
Selenium (Se)
48.1
48.1
ug/L
1
50
96.2
85
115
Thallium (TI) Low Level
49.6
49.6
ug/L
1
50
99.2
85
115
Vanadium (V) Low Level
49.6
49.6
ug/L
1
50
99.3
85
115
MS # I
Parent Sample:
J18090169 -- 2018028235
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
49.1
49.1
ug/L
1
50
98.2
70
130
Arsenic (As)
49.8
49.8
ug/L
1
50
98.7
70
130
Beryllium (Be)
52
52
ug/L
1
50
104
70
130
Cadmium (Cd)
48.4
48.4
ug/L
1
50
96.7
70
130
Chromium (Cr)
48.8
48.8
ug/L
1
50
96.4
70
130
Cobalt (Co)
48.5
48.5
ug/L
1
50
95.6
70
130
Copper (Cu)
48
48
ug/L
1
50
94.2
70
130
Lead (Pb)
48.1
48.1
ug/L
1
50
96.1
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090179 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
61.9
61.9
ug/L
1
50
Nickel (Ni)
51.9
51.9
ug/L
1
50
Selenium (Se)
48
48
ug/L
1
50
Thallium (TI) Low Level
45.1
45.1
ug/L
1
50
Vanadium (V) Low Level
51.9
51.9
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.3
50.3
ug/L
1
50
Arsenic (As)
51.4
51.4
ug/L
1
50
Beryllium (Be)
50.1
50.1
ug/L
1
50
Cadmium (Cd)
49.7
49.7
ug/L
1
50
Chromium (Cr)
50.4
50.4
ug/L
1
50
Cobalt (Co)
49.8
49.8
ug/L
1
50
Copper (Cu)
49.4
49.4
ug/L
1
50
Lead (Pb)
49.7
49.7
ug/L
1
50
Molybdenum (Mo)
64.3
64.3
ug/L
1
50
Nickel (Ni)
53.2
53.2
ug/L
1
50
Selenium (Se)
49.5
49.5
ug/L
1
50
Thallium (TI) Low Level
46.7
46.7
ug/L
1
50
Vanadium (V) Low Level
53.1
53.1
ug/L
1
50
Page 16 of 57
Parent Sample: J18090169 -- 2018028235
% Recovery
LCL
UCL Qualifier
98.6
70
130
94.6
70
130
95.2
70
130
90
70
130
98.8
70
130
Parent Sample: J18090169 -- 2018028235
% Recovery
LCL
UCL
RPD Qualifier
100
70
130
2.23
102
70
130
3.2
100
70
130
3.61
99.2
70
130
2.59
99.5
70
130
3.17
98.1
70
130
2.57
97
70
130
2.98
99.2
70
130
3.24
103
70
130
4.82
97.1
70
130
2.61
98.2
70
130
3.18
93.3
70
130
3.61
101
70
130
2.46

Certificate of Laboratory Analysis Page 17 of 57
This report shall not be reproduced, except in full.
Order # J18090153
Level 11 QC Summary
Q18090177 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Antimony (Sb)
0.017
0.017
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.027
0.027
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
-0.138
-0.138
ug/L
1
1
< 1/2 RDL
Cadmium (Cd)
0.006
0.006
ug/L
1
1
< 1/2 RDL
Chromium (Cr)
0.014
0.014
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.003
0.003
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.112
-0.112
ug/L
1
1
< 1/2 RDL
Lead (Pb)
-0.011
-0.011
ug/L
1
1
< 1/2 RDL
Molybdenum (Mo)
0.068
0.068
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.058
-0.058
ug/L
1
1
< 1/2 RDL
Selenium (Se)
-0.01
-0.01
ug/L
1
1
< 1/2 RDL
Thallium (TI) Low Level
0.074
0.074
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.079
0.079
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
47.8
47.8
ug/L
1
50
95.7
85
115
Arsenic (As)
48.7
48.7
ug/L
1
50
97.4
85
115
Beryllium (Be)
47.9
47.9
ug/L
1
50
95.8
85
115
Cadmium (Cd)
48.3
48.3
ug/L
1
50
96.6
85
115
Chromium (Cr)
49.1
49.1
ug/L
1
50
98.2
85
115
Cobalt (Co)
49.1
49.1
ug/L
1
50
98.2
85
115
Copper (Cu)
48.9
48.9
ug/L
1
50
97.8
85
115
Lead (Pb)
47
47
ug/L
1
50
94
85
115
Molybdenum (Mo)
48.3
48.3
ug/L
1
50
96.7
85
115
Nickel (Ni)
49
49
ug/L
1
50
98.1
85
115
Selenium (Se)
47.2
47.2
ug/L
1
50
94.4
85
115
Thallium (TI) Low Level
49.1
49.1
ug/L
1
50
98.2
85
115
Vanadium (V) Low Level
49
49
ug/L
1
50
98
85
115
NIS # 1
Parent Sample:
J18090169 -- 2018028234
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.8
50.8
ug/L
1
50
101
70
130
Arsenic (As)
52.4
52.4
ug/L
1
50
103
70
130
Beryllium (Be)
53.5
53.5
ug/L
1
50
107
70
130
Cadmium (Cd)
50.8
50.8
ug/L
1
50
102
70
130
Chromium (Cr)
50.9
50.9
ug/L
1
50
102
70
130
Cobalt (Co)
50.3
50.3
ug/L
1
50
100
70
130
Copper (Cu)
50.9
50.9
ug/L
1
50
101
70
130
Lead (Pb)
49.5
49.5
ug/L
1
50
99
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090177 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
56.8
56.8
ug/L
1
50
Nickel (Ni)
50.3
50.3
ug/L
1
50
Selenium (Se)
51.8
51.8
ug/L
1
50
Thallium (TI) Low Level
53.7
53.7
ug/L
1
50
Vanadium (V) Low Level
52.8
52.8
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.2
50.2
ug/L
1
50
Arsenic (As)
50.9
50.9
ug/L
1
50
Beryllium (Be)
51.5
51.5
ug/L
1
50
Cadmium (Cd)
49.6
49.6
ug/L
1
50
Chromium (Cr)
50.7
50.7
ug/L
1
50
Cobalt (Co)
49.7
49.7
ug/L
1
50
Copper (Cu)
50.1
50.1
ug/L
1
50
Lead (Pb)
48.6
48.6
ug/L
1
50
Molybdenum (Mo)
55.8
55.8
ug/L
1
50
Nickel (Ni)
49.3
49.3
ug/L
1
50
Selenium (Se)
48.3
48.3
ug/L
1
50
Thallium (TI) Low Level
52.1
52.1
ug/L
1
50
Vanadium (V) Low Level
52.5
52.5
ug/L
1
50
Page 18 of 57
Parent Sample: J18090169 -- 2018028234
% Recovery
LCL
UCL Qualifier
103
70
130
99.8
70
130
103
70
130
107
70
130
102
70
130
Parent Sample: J18090169 -- 2018028234
% Recovery
LCL
UCL
RPD Qualifier
100
70
130
1.24
100
70
130
3
103
70
130
3.79
99.2
70
130
2.33
101
70
130
0.479
99.2
70
130
1.14
99.3
70
130
1.49
97.1
70
130
1.88
101
70
130
2
97.9
70
130
1.92
96.2
70
130
6.99
104
70
130
2.9
102
70
130
0.654

Certificate of Laboratory Analysis Page 19 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090142 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TDS
0
0
mg/L
1
25
< 1/2 RDL
Duplicate # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
RPD Qualifier
TDS
319
319
mg/L
1
0.945
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
TDS
96
96
mg/L
1
100
96 90
110

Certificate of Laboratory Analysis Page 20 of 57
This report shall not be reproduced, except in full.
Order # J18090153
Level 11 QC Summary
Q18090221 Total Carbon Total Carbon
Blank # 1
Parameter Measured Final
TOC 0.011
Blank # 2
Parameter Measured Final
TOC 0.044
Blank # 3
Parameter Measured Final
TOC 0
LCS # 1
Parameter Measured Final
TOC 2.31
LCS # 2
Parameter Measured Final
TOC 2.4
LCS # 3
Parameter Measured Final
TOC 2.32
MS # 1
Parameter Measured Final
TOC 4.91
MSD # 1
Parameter Measured Final
TOC 5
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
97.1 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
101 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
97.7 85
115
Parent Sample:
J18090117 -- 2018027907
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2
98 80
120
Parent Sample:
J18090117 -- 2018027907
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
mg/L
1
2
103 80
120
4.54

Certificate of Laboratory Analysis Page 21 of 57
This report shall not be reproduced, except in full.
Order # A 8090153
Level II QC Summary
Q18090139 TSS TOTAL SUSPENDED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TSS
0
0
mg/L
1
5
< 1/2 RDL
Duplicate # 1
Parent Sample: J18080009
-- 2018023982
Parameter
Measured
Final
Units:
Dil
RPD Qualifier
TSS
34.6
34.6
mg/L
1
1.15
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL UCL
Qualifier
TSS
47.2
47.2
mg/L
1
50
94.4 90 110

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8� �nfeye. Suite 100
��JJ Huntersville, NC 28078
[phone]
September 14, 2018
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg.7405 MG30A2
Huntersville, NC 28078
RE: Project: J 18090153
Pace Project No.: 92398670
Dear Program Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on September 07, 2018.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
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 21

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8� �nfeye. Suite 100
�J Huntersville, NC 28078
[phone]
Project: J18090153
Pace Project No.: 92398670
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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Project: J18090153
Pace Project No.: 92398670
Lab ID Sample ID
SAMPLE SUMMARY
Matrix Date Collected Date Received
92398670001 2018028160 Water 09/06/1816:15 09/07/1813:20
REPORT OF LABORATORY ANALYSIS
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SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
J18090153
92398670
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92398670001
2018028160
SM 2320B-2011
ECH
3
PASI-A
SM 4500-S2D-2011
GC
1
PASI-A
EPA 218.7 Rev 1.0 2011
CDC
1
PASI-A
EPA 365.1 Rev 2.0 1993
MFO
1
PASI-A
EPA365.1
MFO
1
PASI-A
REPORT OF LABORATORY ANALYSIS
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SUMMARY OF DETECTION
Project:
Pace Project No.:
J18090153
92398670
Lab Sample ID
Client Sample ID
Method
Parameters
Result Units
Report Limit
Analyzed Qualifiers
92398670001
2018028160
SM 2320B-2011
Alkalinity, Bicarbonate (CaCO3)
225 mg/L
5.0
09/11/18 05:17
SM 2320B-2011
Alkalinity, Total as CaCO3
225 mg/L
5.0
09/11/18 05:17
EPA 365.1 Rev 2.0 1993 Phosphorus
0.086 mg/L
0.050
09/11/18 05:43
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090153
Pace Project No.: 92398670
Method: SM 2320B-2011
Description: 2320B Alkalinity
Client: Duke Energy
Date: September 14, 2018
General Information:
1 sample was analyzed for SM 232013-2011. All samples were received in acceptable condition with any exceptions noted below or on
the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090153
Pace Project No.: 92398670
Method: SM 4500-S2D-2011
Description: 4500S2D Sulfide Water
Client: Duke Energy
Date: September 14, 2018
General Information:
1 sample was analyzed for SM 4500-S2D-2011. All samples were received in acceptable condition with any exceptions noted below or
on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 429860
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92398609005,92398627011
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2372507)
• Sulfide
• MSD (Lab ID: 2372508)
• Sulfide
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090153
Pace Project No.: 92398670
Method: EPA 218.7 Rev 1.0 2011
Description: 218.7 Chromium, Hexavalent
Client: Duke Energy
Date: September 14, 2018
General Information:
1 sample was analyzed for EPA 218.7 Rev 1.0 2011. All samples were received in acceptable condition with any exceptions noted
below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 429956
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92398437001,92398588009
M1: Matrix spike recovery exceeded QC limits.
• MS (Lab ID: 2372809)
• Chromium, Hexavalent
• MS (Lab ID: 2372811)
• Chromium, Hexavalent
• MSD (Lab ID: 2372810)
• Chromium, Hexavalent
Additional Comments:
Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090153
Pace Project No.: 92398670
Method: EPA 365.1 Rev 2.0 1993
Description: 365.1 Phosphorus, Total
Client: Duke Energy
Date: September 14, 2018
General Information:
1 sample was analyzed for EPA 365.1 Rev 2.0 1993. 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 365.1 Rev 2.0 1993 with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090153
Pace Project No.: 92398670
Method: EPA 365.1
Description: 365.1 Phosphorus, Total, Diss.
Client: Duke Energy
Date: September 14, 2018
General Information:
1 sample was analyzed for EPA 365.1. 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 365.1 Rev 2.0 1993 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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ANALYTICAL RESULTS
Project: J18090153
Pace Project No.: 92398670
Sample: 2018028160 Lab ID: 92398670001 Collected: 09/06/18 16:15 Received: 09/07/18 13:20 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2320B Alkalinity
Alkalinity, Bicarbonate (CaCO3)
Alkalinity, Carbonate (CaCO3)
Alkalinity, Total as CaCO3
4500S21) Sulfide Water
Sulfide
218.7 Chromium, Hexavalent
Chromium, Hexavalent
365.1 Phosphorus, Total
Phosphorus
365.1 Phosphorus, Total, Diss
Phosphorus, Dissolved
Date: 09/14/2018 01:35 PM
Analytical Method: SM 2320B-2011
225 mg/L 5.0
1
09/11/18 05:17
ND mg/L 5.0
1
09/11/18 05:17
225 mg/L 5.0
1
09/11/18 05:17
Analytical Method: SM 4500-S2D-2011
ND mg/L 0.10
1
09/13/1818:57
18496-25-8
Analytical Method: EPA 218.7 Rev 1.0 2011
ND ug/L 0.025
1
09/11/18 23:38
18540-29-9
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
0.086 mg/L 0.050
1
09/10/18 21:04 09/11/18 05:43
7723-14-0
Analytical Method: EPA 365.1 Preparation Method: EPA
365.1 Rev 2.0 1993
ND mg/L 0.050
1
09/10/18 21:04 09/11/18 06:06
7723-14-0
REPORT OF LABORATORY ANALYSIS
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QUALITY CONTROL DATA
Project: J18090153
Pace Project No.: 92398670
QC Batch: 429766 Analysis Method: SM 2320B-2011
QC Batch Method: SM 2320B-2011 Analysis Description: 2320E Alkalinity
Associated Lab Samples: 92398670001
METHOD BLANK: 2371920
Associated Lab Samples: 92398670001
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Alkalinity, Bicarbonate (CaCO3) mg/L
Alkalinity, Carbonate (CaCO3) mg/L
LABORATORY CONTROL SAMPLE: 2371921
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
ND 5.0 09/11/18 00:34
ND 5.0 09/11/18 00:34
ND 5.0 09/11/18 00:34
Spike LCS LCS % Rec
Conc. Result % Rec Limits Qualifiers
50 52.8 106 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2371922 2371923
MS MSD
92398588011 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L 63.9 50 50 111 106 93 85 80-120 4 25
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2371924 2371925
MS MSD
92398609006 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L 85.1 50 50 132 128 94 86 80-120 3 25
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: 09/14/2018 01:35 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090153
Pace Project No.: 92398670
QC Batch: 429860
Analysis Method: SM 4500-S2D-2011
QC Batch Method: SM 4500-S2D-2011
Analysis Description: 4500S2D Sulfide Water
Associated Lab Samples: 92398670001
METHOD BLANK: 2372505
Matrix: Water
Associated Lab Samples: 92398670001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Sulfide mg/L
ND 0.10
09/13/1818:46
LABORATORY CONTROL SAMPLE: 2372506
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Sulfide mg/L
.5 0.47
94 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372507 2372508
MS MSD
92398609005
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Sulfide mg/L <0.050
.5 .5 0.29
0.29 58 59 80-120 1 10 M1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372509 2372510
MS MSD
92398627011 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 .5 .5 0.51 0.48 102 96 80-120 6 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/14/2018 01:35 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090153
Pace Project No.: 92398670
QC Batch: 429956
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
Associated Lab Samples: 92398670001
METHOD BLANK: 2372807
Matrix: Water
Associated Lab Samples: 92398670001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Chromium, Hexavalent ug/L
ND 0.025
09/11/18 15:28
LABORATORY CONTROL SAMPLE: 2372808
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Chromium, Hexavalent ug/L
.1 0.11
110 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372809 2372810
MS MSD
92398437001
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 0.26
.1 .1 0.37
0.40 112 138 90-110 7 10 M1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372811 2372812
MS MSD
92398588009 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 0.56 .1 .1 0.68 0.65 115 90 90-110 4 10 M1
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: 09/14/2018 01:35 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090153
Pace Project No.: 92398670
QC Batch: 429868
Analysis Method: EPA 365.1 Rev 2.0 1993
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Total
Associated Lab Samples: 92398670001
METHOD BLANK: 2372539
Matrix: Water
Associated Lab Samples: 92398670001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus mg/L
ND 0.050
09/11/18 05:27
LABORATORY CONTROL SAMPLE: 2372540
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus mg/L
2.5 2.6
103 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372541 2372542
MS MSD
92398588011
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.061
2.5 2.5 2.7
2.7 104 105 90-110 0 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372543 2372544
MS MSD
92398609009 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.11 2.5 2.5 2.7 2.7 105 105 90-110 0 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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QUALITY CONTROL DATA
Project: J18090153
Pace Project No.: 92398670
QC Batch: 429869
Analysis Method: EPA 365.1
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Dissolved
Associated Lab Samples: 92398670001
METHOD BLANK: 2372546
Matrix: Water
Associated Lab Samples: 92398670001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus, Dissolved mg/L
ND 0.050
09/11/18 05:48
LABORATORY CONTROL SAMPLE: 2372547
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus, Dissolved mg/L
2.5 2.6
103 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372548 2372549
MS MSD
92398588001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L 0.045J
2.5 2.5 2.7
2.6 105 104 90-110 1 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2372550 2372551
MS MSD
92398588011 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L 0.058 2.5 2.5 2.7 2.7 106 104 90-110 2 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/14/2018 01:35 PM without the written consent of Pace Analytical Services, LLC.
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QUALIFIERS
Project: J18090153
Pace Project No.: 92398670
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.
LABORATORIES
PASI-A Pace Analytical Services - Asheville
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
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QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: J18090153
Pace Project No.: 92398670
Lab ID
Sample ID
QC Batch Method
QC Batch
92398670001
2018028160
SM 2320B-2011
429766
92398670001
2018028160
SM 4500-S2D-2011
429860
92398670001
2018028160
EPA 218.7 Rev 1.0 2011
429956
92398670001
2018028160
EPA 365.1 Rev 2.0 1993
429868
92398670001
2018028160
EPA 365.1 Rev 2.0 1993
429869
Date: 09/14/2018 01:35 PM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
Analytical Method
Analytical
Batch
EPA 365.1 Rev 2.0 1993 429904
EPA 365.1 429905
Page 18 of 21

acekialy#ical
Document Name:
Sample Canditlon Upon Receipt(SCUR)
Document Revised: February 7, 3M§e 4
Page 1 of 2
Document No.:
F-CAR-CS-033-Rev,06
issuing Authority:
Pace Carolinas Quality Office
of 57
Laboratory receiving samples:
Asheville ❑ Eden[—] Greenwood ❑ Huntersville p- Raleigh[] Mechanicsville❑
SampleClient Name; WO# • 923JV6I
Upon ReceiptI}t f f-- ' Project #:
Courier: []Fed Ex ❑UPS ❑USPS ❑Client I ��
❑ Commercial . DPace ❑other; 92398670
Custody Seal Present? []Yes EJNo Seals Intact? []Yes ❑No
oaie/Initleis Person Examining Contenu:.� l
Packing Material: ❑Bubble wrap ❑Bubble Sags , -❑None ❑ Other Biological Tissue Frozen?
Thermometer: ❑Yes ❑No ❑N/A
❑IR Gun ID: 92TO45 Type of Ice: []Wet [-]Blue ❑None
Cooler Temp ('Cl: 7 L } Correction Factor: Add/Subtract (°C) _0 1
Temp should be above freezing to VCCooler Temp Corrected j°Ci: { ❑samples out of temp criteria. Samples on ice, cooling process
hasbegua
USDA Regulated Soil { []-N/A, water samples
Did samples originate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Md samples originate from a foreign source (internationally,
ram.. ram.. i-1-11no Hawaii and Niprin RIrnP Myes ! erlINa
Commtents/Discrepancy,
Chain of Custody Present?
[]fes
ONO
❑N/A
1.
Samples Arrived within Hold Time?
Short Hold Time Analysis {e72 hr.)?
QCes
(]Yes
[]NO
[3NO
❑N/A
❑NIA
2.
3.
Rush Turn Around Time Requested?
❑Yes
21No
[)N/A
4.
Sufficient Volume?
❑Yes
❑No
❑N/A
S.
Correct Containers Used?
-Pace Containers Used?
❑Yes
I❑Yes
❑No
[:]No
❑N/A
❑NIA
6.
Containers Intact?
.-Yes
❑No
❑N/A
7.
Dissolved analysis: Samples Field Filtered?
❑Yes
[—]No
❑N/A
8.
Sample Labels Match COC?
-Includes Date/Time/ID/Analysis Matrix:
-[]Yes
V V T
❑No
❑N/A
9.
Headspace in VOA Vials (>5-6mm)?
❑Yes
❑No
❑:J/A
10,
Trip Blank Present?
Trip Blank Custody Seals Present?
❑Yes
❑Yes
ONO
❑No
❑N/A
❑N/A
11.
COMMENTS/SAMPLE DISCREPANCY
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
Date/Time:
Lot ID of split containers:
Date:
Date:
Field Data Required? []Yes []No
Page 19 of 21

i aceAnalyticala
Document Name:
Sample Condition Upon Recelpt(SCUR)
Document Revised: February 7, e 41
Page 1 of 2
Document No.:
F-CAR-CS-033-Rev,06
Issuing Authority:
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, DRO/801S (water) DOC, LLHg
"Bottom half of box is to list number of bottle
Project #
of 57
WOE : 9239867®
PM: KLH1 Due Date: 09/14/18
CLIENT: 92—Duke Ener
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pH Adjustment log for Preserved Samples
Sample ID Type of preservative pH upon receipt Date preservation adjusted Treservation Amount of Preservative lot Oflme p
adjusted added
Note: Wheneverthere is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certification Office (i.e.
Out of hotd, incorrect preservative, out of temp, incorrect containers.
Page 20 of 21

Yb ryi f ` � 7,—*S + P�ge of 57
_._._._._._._-.-----.-.---.---.-.-.-.-.-.-.-.---.-.-.-.-.-.-_CHAIN OFF CUSTODY RECORD AND ANALYSIS REQUEST FORM ------ - - -- �
Duke Energy ��•� =n.rey ..n.,yn�., �.ee..rery —a —norowne use uniy
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by ICP (TRM): Al, Ba, B, Ca, Fu, LI, Mg, Mn, K, Na, Sr, Zn Hg by 245.1 Dissolved metals : All
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® Laboratories LLc
a member of The GEL Group ivv;
September 25, 2018
Anne Pridgeon
Duke Energy Central Lab
13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Re: Ash Basin Pump Test
Work Order: 459073
SDG: J18090153
Dear Anne Pridgeon:
Po Box 30712 Charleston_ SC 29417
2040 Savage Road Chad "on. 8C 2N07
P 843.556.8171
F 843.766.1178
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the
sample(s) we received on September 07, 2018. This original data report has been prepared and reviewed in
accordance with GEL's standard operating procedures.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs
on time every time. We trust that you will find everything in order and to your satisfaction. If you have any
questions, please do not hesitate to call me at [phone], ext. 4705.
Sincerely,/
V
am
Katherine Cates
Project Manager
Purchase Order: 5640332
Enclosures
gel. com

Page 44 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis Report
for
DUP0007 Duke Energy Carolinas, LLC (PO 5640332)
Client SDG: J18090153 GEL Work Order: 459073
The Qualifiers in this report are defined as follows:
* A quality control analyte recovery is outside of specified acceptance criteria
** Analyte is a Tracer compound
** Analyte is a surrogate compound
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the Certificate of Analysis.
The designation ND, if present, appears in the result column when the analyte concentration is not detected above
the limit as defined in the 'U' qualifier above.
This data report has been prepared and reviewed in accordance with GEL Laboratories LLC
standard operating procedures. Please direct any questions to your Project Manager, Katherine Cates.
Reviewed by
Page 2 of 14

GEL LABORATORIES LLC Page 45of57
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analvsis
Report Date: September 25, 2018
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID: 2018028160
Project: DUKE00702
Sample ID: 459073001
Client ID: DUP0007
Matrix: Water
Collect Date: 06-SEP-18 16:15
Receive Date: 07-SEP-18
Collector: Client
Parameter Qualifier Result Uncertainty MDC RL
Units PF DF Analyst Date Time Batch Method
Rad Gas Flow Proportional Counting
GFPC, Ra228, Liquid "As Received"
Radium-228 U 0.383 +/-0.293 0.461 1.00
pCi/L JXC9 09/21/18 1202 1801224 1
Rad Radium-226
Lucas Cell, Ra226, liquid "As Received"
Radium-226 0.739 +/-0.278 0.195 1.00
pCi/L PCW 09/24/18 0820 1800553 2
The following Analytical Methods were performed:
Method Description
Analyst Comments
1 EPA 904.0/SW846 9320 Modified
2 EPA 903.1 Modified
Surrogate/Tracer Recovery Test
Result Nominal Recovery% Acceptable Limits
Barium-133 Tracer GFPC, Ra228, Liquid "As Received"
90.9 (15%-125%)
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 3 of 14

GEL LABORATORIES LLC Page 46of57
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
2018028160
459073001
Water
06-SEP-18 16:15
07-SEP-18
Client
Report Date: September 25, 2018
Project: DUKE00702
Client ID: DUP0007
Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method
Metals Analysis-ICP-MS
Calculation for Total U "See Parent Products"
Total Uranium 0.0027 0.000067 0.0002 ug/ml BAJ 09/19/18 1705 1803590 1
The following Prep Methods were performed:
Method Description Analyst Date Time Prep Batch
SW846 3010A SW 846 3010 Acid Digestion
The following Analytical Methods were performed:
SXWl 09/08/18 0505 1800915
Method Description Analyst Comments
1 SW846 6020
Notes:
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 4 of 14

Page 47 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: September 25, 2018
Duke Energy Central Lab Page 1 of 2
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459073
Parmname
NOM
Sample Qual QC
Units RPD%
REC% Range Anlst Date Time
Rad Gas Flow
Batch 1801224
QC1204110942 458883008 DUP
Radium-228
U
0.0963 U-0.0345
pCi/L N/A
N/A JXC9 09/21/1812:02
Uncertainty
+/-0.215 +/-0.195
QC1204110943 LCS
Radium-228
5.78
5.52
pCi/L
95.5 (75%-125%) 09/21/1812:02
Uncertainty
+/-0.647
QC1204110941 MB
Radium-228
U 0.200
pCi/L
09/21/1812:02
Uncertainty
+/-0.266
Rad Ra-226
Batch 1800553 —
QC1204109493 458883001 DUP
Radium-226
QC1204109495 LCS
Radium-226
QC1204109492 MB
Radium-226
QC1204109494 458883001 MS
Radium-226
2.25
Uncertainty +/-0.506
26.0
Uncertainty
Uncertainty
130 2.25
Uncertainty +/-0.506
1.88
pCi/L
17.9 (0%-20%)
PCW 09/24/18 09:30
+/-0.461
20.3
pCi/L
78.1 (75%-125%)
09/24/18 09:30
+/-1.55
U 0.127
pCi/L
09/24/18 09:30
+/-0.180
110
pCi/L
82.9 (75%-125%)
09/24/18 09:30
+/-8.33
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
The Qualifiers in this report are defined as follows:
** Analyte is a Tracer compound
< Result is less than value reported
> Result is greater than value reported
BD Results are either below the MDC or tracer recovery is low
FA Failed analysis.
H Analytical holding time was exceeded
Page 5 of 14

Page 48 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459073
Page 2 of 2
Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time
J Value is estimated
K Analyte present. Reported value may be biased high. Actual value is expected to be lower.
L Analyte present. Reported value may be biased low. Actual value is expected to be higher.
M M if above MDC and less than LLD
M REMP Result > MDC/CL and < RDL
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
UI Gamma Spectroscopy --Uncertain identification
UJ Gamma Spectroscopy --Uncertain identification
UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 6 of 14

Page 49 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: September 25, 2018
Duke Energy Central Lab Page 1 of 3
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459073
Parmname
NOM Sample
Qual
QC
Units
RPD/D%
REC% Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1800916
QC1204110194 459073001 DUP
Uranium-233
U ND
U
ND
ug/mL
N/A
SKJ
09/18/18 09:55
Uranium-234
U ND
U
ND
ug/mL
N/A
Uranium-236
U ND
U
ND
ug/mL
N/A
Uranium-238
0.0027
0.00268
ug/mL
0.985
(0%-20%)
09/19/1811:40
QC1204110192 LCS
Uranium-238
0.0496
0.051
ug/mL
103 (80%-120%)
09/19/1811:37
QC1204110193 LCS
Uranium-233
Uranium-234
Uranium-236
QC1204110191 MB
Uranium-233
Uranium-234
Uranium-236
Uranium-238
0.0005
0.00049
ug/mL 97.9 (80%-120%) 09/18/18 09:52
0.00055
0.000627
u9/mL 114 (80%-120%)
0.005
0.00539
u9/mL 108 (80%-120%)
U
ND
ug/mL 09/18/18 09:51
U
ND
ug/mL
U
ND
ug/mL
U
ND
ug/mL 09/19/1811:36
Page 7 of 14

Page 50 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459073
Page 2 of 3
Parmname
NOM
Sample
Qual
QC
Units
RPD/D%
REC%
Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1800916
QC1204110195 459073001 MS
Uranium-238
0.0496
0.0027
0.0541
ug/mL
104
(75%-125%) SKJ
09/19/1811:41
QC1204110196 459073001 MS
Uranium-233
0.0005
U
ND
0.000489
ug/mL
97.7
(75%-125%)
09/18/18 09:56
Uranium-234
0.00055
U
ND
0.000593
ug/mL
108
(75%-125%)
Uranium-236
0.005
U
ND
0.00571
ug/mL
114
(75%-125%)
QC1204110197 459073001 SDILT
Uranium-233
U
ND
U
ND
ug/L
N/A
(0%-10%)
09/18/18 09:59
Uranium-234
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-236
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-238
2.70
0.523
ug/L
3.24
(0%-10%)
09/19/1811:43
Notes:
The Qualifiers in this report are defined as follows:
< Result is less than value reported
> Result is greater than value reported
E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria
FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed
invalid for reporting to regulatory agencies
H Analytical holding time was exceeded
J Value is estimated
N Metals --The Matrix spike sample recovery is not within specified control limits
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
Page 8 of 14

Page 51 of 57
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459073 Page 3 of 3
Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 9 of 14

fAno Froth t5&Zit% ftvmfAr, I-e-st
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
------------- ---------
.......... ........ ....... ----------------- ------------------------------- Analytical Laboratory Use Only
Page 52 of 57
Lf
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Duke Energy!
GW_WW
Page _I 0 iJ
i !Order
i Mwi Code MGOW (Sm4dkV 740S) IMatrix:
!
NC
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DISTRIBUTION
Analytical Laboratory I 13339 Hn— F.ry Rd
­Rb. N.C� 28078
Chain of Custody & F-i �jipd�,Ll iD.ft, & Tim.:
45— 0
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SAMPLE PROGRAM
i ORIGINAL to LAB. COPY to CLIENT
Sample Log
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Gm4-J%VWe1 X
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RCRA W-le
NPDES
LIST
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u Client: AB GW PO 5666396
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Unfiltered
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PET PET
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ELEMENTS by ICP MS (TRM): Sb. As, Be, Cd, Cr, Cc, Cu, Me, Ni, Pb, So, TI ILI-), V (LL) ELEMENTS
Dissolved metals: All E
by ICP (TRM): Al, go, B, Ca, Fe, Li; Mg, Mn, K, Na, Sr, Zn Hg by 245.1 'Other
metals ICP, IMS, Hg (Excluding Ca, Mg, K, Na) >n Add. Cost Will Apply
L)
mallys6 SLn- Wet" Ow
2 Total F11

Page 53 of 57
SAMPLE RECEIPT & REVIEW FORM
Client:
SDG/AR/COGWarkO r. '69 4 90
Received By:
Date Received: M0
Circle Applicable:
FedEx Express FedEx Ground UPS Field Services <5o9p0ther
Carrier and Tracking Number
*If Net Counts > 100cpm on samples not marked "radioactive", contact the Radiation Safety Group for further
Suspected Hazard Infornta6on
>jinvestigation.
Z
Shipped as a DOT Hazardous?
Hazard Class Shipped: UN#:
COC/Samples marked or classified as
aximum Net Counts Observed* (Observed Counts - Area Background Counts): CPtl4 / mR/Hr
radioactive?
Classified as: Rad I Rad 2 Rad 3
if yes, select Hazards below, and contact the GEL Safety Group.
PCB's Flammable Foreign Soil RCRA Asbestos Beryllium Other:
Is package, COC, and/or Samples marked HAZ?
Sample Receipt Criteria
z
Connnents/Qualifiers (Required forNon-Conforming Items)
Shipping containers received intact and
Circle Applicable: Seals broken Damaged container Leaking container Other (describe)
1
sealed?
Chain of custody documents included
9
with shipment?
3
cold
Samples requiring cold preservation
Preservation Method: wet ke IcePacks Dry ice o Other:
within (0 6 deg.
*all temperatures are recorded in Celsius TEMP:
Daily check performed and passed on IR
Temperature Device Serial #:
4
temperature gun?
Secondary Temperature Device Serial # (If Applicable):
Circle Applicable: Seals broken Damaged container leaking container Other (describe)
S
Sample containers intact and sealed?
requiring ehettvcal preservation
Sample ID's and Containers Affected:
6Samples
Pt proper pH?
F j
If Presgryation added. lj)t#:
If Yes, Are Encores or Soil Kits present? Yes_ No_ (I# yes, take to VOA Freezer)
Do VOA vials contain acid preservation? Yes No N/A. (if unknown, select No)
Do any samples require Volatile
VOA vials free of headspace? Yes No_ N/A
7
Analysis?
Sample ID's and containers affected:
l9s and tests affected:
8
Samples received within holding time?
Sample ID's on COC match ID's on
Sample ID's and containers affected:
9
bottles?
Date & time on COC match date & time
Sample ID's affected:
10
on bottles?
Number of containers received match
Sample to's affected:
11
number indicated on COC?
Are sample containers identifiable as
1v
GELprovided?
COC form is properly signed in
13
relinquished/received sections?
Comments (Use Continuation Form if needed):
PM(or PMA)review: Initials �s Date 'i/ 1—/ 1
Page l of i
GL-CHL-SR-001 Rev 5
Page 11 of 14

Page 54 of 57
Technical Case Narrative
Duke Energy Carolinas, LLC (DUPC)
SDG #: J18090153
Work Order #: 459073
Metals
Product: Determination of Metals by ICP-MS
Analytical Method: SW846 3010A/6020A
Analytical Procedure: GL-MA-E-014 REV# 33
Analytical Batch: 1800916
Preparation Method: SW846 3010A
Preparation Procedure: GL-MA-E-008 REV# 19
Preparation Batch: 1800915
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID#
Client Sample Identification
459073001
2018028160
1204110191
Method Blank (MB)ICP-MS
1204110192
Laboratory Control Sample (LCS)
1204110193
Laboratory Control Sample (LCS)
1204110197
459073001(2018028160L) Serial Dilution (SD)
1204110194
459073001(2018028160D) Sample Duplicate (DUP)
1204110195
459073001(2018028160S) Matrix Spike (MS)
1204110196
459073001(2018028160S) Matrix Spike (MS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary:
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Calibration Information
ICSA/ICSAB Statement
For the ICP-MS analysis, the ICSA solution contains analyte concentrations which are verified trace impurities
indigenous to the purchased standard.
Radiochemistry
Product: GFPC, Ra228, Liquid
Analytical Method: EPA 904.0/SW846 9320 Modified
Analytical Procedure: GL-RAD-A-063 REV# 2
Analytical Batch: 1801224
Page 12 of 14

Page 55 of 57
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459073001 2018028160
1204110941 Method Blank (MB)
1204110942 458883008(NonSDG) Sample Duplicate (DUP)
1204110943 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary:
There are no exceptions, anomalies or deviations from the specified methods. All sample data provided in this
report met the acceptance criteria specified in the analytical methods and procedures for initial calibration,
continuing calibration, instrument controls and process controls where applicable.
Product: Lucas Cell, Ra226, liquid
Analytical Method: EPA 903.1 Modified
Analytical Procedure: GL-RAD-A-008 REV# 15
Analytical Batch: 1800553
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459073001 2018028160
1204109492 Method Blank (MB)
1204109493 458883001(NonSDG) Sample Duplicate (DUP)
1204109494 458883001(NonSDG) Matrix Spike (MS)
1204109495 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary•
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Miscellaneous Information
Additional Comments
The matrix spike, 1204109494 (Non SDG 458883001MS), aliquot was reduced to conserve sample volume.
Certification Statement
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 13 of 14

Page 56 of 57
List of current GEL Certifications as of 25 September 2018
State
Certification
Alaska
17-018
Arkansas
88-0651
CLIA
42D0904046
California
2940
Colorado
SC00012
Connecticut
PH-0169
DoD ELAP/ ISO17025 A2LA
2567.01
Florida NELAP
E87156
Foreign Soils Permit
P330-15-00283, P330-15-00253
Georgia
SC00012
Georgia SDWA
967
Hawaii
SC00012
Idaho Chemistry
SC00012
Idaho Radiochemistry
SC00012
Illinois NELAP
200029
Indiana
C—SC-01
Kansas NELAP
E-10332
Kentucky SDWA
90129
Kentucky Wastewater
90129
Louisiana NELAP
03046 (AI33904)
Louisiana SDWA
LA180011
Maryland
270
Massachusetts
M—SC012
Michigan
9976
Mississippi
SC00012
Nebraska
NE—OS-26-13
Nevada
SC000122018-1
New Hampshire NELAP
205415
New Jersey NELAP
SC002
New Mexico
SC00012
New York NELAP
11501
North Carolina
233
North Carolina SDWA
45709
North Dakota
R-158
Oklahoma
9904
Pennsylvania NELAP
68-00485
Puerto Rico
SC00012
S. Carolina Radiochem
10120002
South Carolina Chemistry
10120001
Tennessee
TN 02934
Texas NELAP
T104704235-18-13
Utah NELAP
SC000122018-26
Vermont
VT87156
Virginia NELAP
460202
Washington
C780
Page 14 of 14

tAn b ASK-130tst R '�I rylf 1 r�0� 1'e-s t
CHAIN OFCUSTODYRECORD
AND ANALYSIS REQUEST FORM
- AnaIcaLaboratory Use -- - --------------------------------------_--.-.-.-.-.---.I
Page 57 of 57
Duke Energy M.IICodeMG03A21Bullding7405) ;Order#,)�D9oiS 1 Matrix: GW WW s. w..ora.xwcem: NC_ sc_
Analytical Laboratory 1333E Hager. F.rry Rd
Hunts-ilb, N. C. 28078 i �Lo d B Date A 71m•:
Chain of Custody & F..., vge y' ,A p �i J �u�
(704)5755245 ToL 7 a�~� Ground Watery XLE PROGRAM
Sample Lop i0a B_7_5a03e _ _ _ _
---------------------------------- / IJ Drinking Water_ UST_
Project Name: IMP ABSCaament WaterL Ph. -No. '; CE f t-1 RCRA Waste_
cooler
;
i
Page of _t_
DISTRIBUTION
ORIGINAL to LAB, COPY to CLIENT
COC REVS DATE:
(1st Quarter 2018)
6/7/18
Client: AS �W PO 5666 396 Itration (0.45 um) b
Unfiltered
V
Filtered
Preservative Ica lee
B]]].Ir]... Ur]k: Props: RwR GM.r 7°: GEL
Pruj.el ID: AS GW Aeeesemerd Water Adi Ri a: MoIlc�; PO 5616867 r Volume (ml-) 1000 500
MG03A2
Ice Ica H2a04 Ice N2504
300 250 250
lee
500
Ica (Zinc
Acetetel
NaOH)
500
IN
HNO3 NH4
Sulbb
4 L 250
IC°
N2eW
500 500 125
abrbody: aWbn. :ontainer Type PET PET
PET PET
PET
PET
PET
HOPE HOPE
HDPE HDPE PET
Sample Description or ID Customer to complete all appropriate non-
shaded areas.
..._.._.._.._.._.._.._.._., Collection IMormaUon-
GPS LocationJ0
Dab Time Signature Tj-' Ffit—
O Z
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TOTAL
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Customer to si n 8 date below
Relinquished By: Daterrime:
(�� td 8 M g
D1.11. -0
Relinquished By: / DatelTim
Shi ec�
Relinquished By terrime:
: D
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Accepted B Datel-rime:
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Total 21
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S Iedpad By: DabfTi e:
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`Other
` Add. Cost Will Apply
ELEMENTS by ICP MS (TRM): Sb, As, Be, Cd, Cr, Co, Cu , N Pb, Se, TI (LL), V (LL) ELEMENTS
by ICP (TRM): Al, is, B, Ca, Fe, Li, Mg, Mn, K, Na, Sr, Zn Hg by 245.1 Dissolved metals: All
metals ICP, IMS, Hg (Excluding Ca, Mg, K, Na)
'Bromide analysis Sun°n Wells Only'
v+W,.E n.r op• !0]mao red°n�acM.'OPicLOCnMv,GncuNo+ni.,OiN Ma r,u.,mn�aw]_(s].+eI PI

DUKE Analytical Laboratory Page 1of58
ENERGY
Order Number:
Project Name:
Customer Name(s):
Customer Address:
Lab Contact:
Report Authorized By:
(Signature)
Program Comments:
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
J18090212
MAYO STEAM - PUMP TEST
Kim Witt, Bryan Moeller, Synterra
Mayo Steam Plant
10660 Boston Road
Roxboro,North Carolina 27574
Peggy Kendall Phone: [phone]
Peggy Kendall
Date:
Please contact the Program Manager (Peggy Kendall) with any questions regarding this report.
Data Flags & Calculations:
10/11 /2018
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package, Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub -contracted Laboratory Results, Customer Specific Data Sheets, Reports &
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody (COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR) Certificate #248, South Carolina
(DHEC) Laboratory ID # 99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions:
Collection
Sample ID Plant/Station Date and Time Collected By
2018028467 MAYO STEAM 10-Sep-18 11:55 AM Erin Kinsey
1 Total Samples
Page 2 of 58
Sample Description
AP-6

Page 3 of 58
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. F Yes No
All laboratory QA/QC requirements are acceptable. �- Yes ❑ No
Report Sections Included:
d❑ Job Summary Report
❑ Sample Identification
0 Technical Validation of Data Package
❑ Analytical Laboratory Certificate of Analysis
❑ Analytical Laboratory QC Report
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑ Chain of Custody
❑ Electronic Data Deliverable (EDD) Sent Separatel
Reviewed By: Peggy Kendall Date: 10/11/2018

Certificate of Laboratory Analysis Page 4 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Site: AP-6 SamDle #: 2018028467
Collection Date: 09/10/2018 11:55 AM Matrix: GW WW
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
ALKALINITY - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete Vendor Method V_PACE
NITRITE + NITRATE (COLORIMETRIC) - 018100004
Nitrite + Nitrate (Colorimetric) < 0.01 mg-N/L
0.01
1
EPA 353.2
10/01/2018 08:56
JASTOWE
TOTAL PHOSPHORUS (COLORIMETRIC) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
TOTAL PHOSPHORUS DISSOLVED (COLORIMETRIC) - (Analysis Performed by
Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
HEXAVALENT CHROMIUM Cr(VI) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
INORGANIC IONS BY IC - 018090251
Chloride 25 mg/L
1
10
EPA 300.0
09/14/2018 17:26
BGN9034
Fluoride 0.88 mg/L
0.1
1
EPA 300.0
09/14/2018 17:26
BGN9034
Sulfate 5.7 mg/L
0.1
1
EPA 300.0
09/14/2018 17:26
BGN9034
MERCURY (COLD VAPOR) IN WATER - 018090452
Mercury (Hg) < 0.05 ug/L
0.05
1
EPA 245.1
09/21/2018 13:34
DMFRANC
Mercury Dissolved (cold vapor) in Water (Filtered) - 018090453
Mercury (Hg) < 0.05 ug/L M2
0.05
1
EPA 245.1
09/21/2018 12:06
DMFRANC
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - 018090178
Aluminum (Al) 0.041 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3
Barium (Ba) 0.314 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3
Boron (B) 4.59 mg/L
0.05
1
EPA 200.7
09/13/2018 17:53
MHALL3
Iron (Fe) 1.00 mg/L
0.01
1
EPA 200.7
09/13/2018 17:53
MHALL3
Lithium (Li) 0.447 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3
Manganese (Mn) 0.548 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3
Strontium (Sr) 1.25 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3
Zinc (Zn) 0.013 mg/L
0.005
1
EPA 200.7
09/13/2018 17:53
MHALL3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J18090212
Site: AP-6
Collection Date: 09/10/2018 11:55 AM
Sample #: 2018028467
Matrix: GW WW
Page 5 of 58
Analyte
Result
Units
Qualifiers RDL
DF
Method
Analysis Date/Time
Analyst
TOTAL RECOVERABLE METALS BY ICP - Q18090176
Aluminum (Al)
0.208
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Barium (Ba)
0.313
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Boron (B)
4.56
mg/L
0.05
1
EPA 200.7
09/13/2018 17:12
MHALL3
Calcium (Ca)
60.1
mg/L
0.01
1
EPA 200.7
09/13/2018 17:12
MHALL3
Iron (Fe)
1.16
mg/L
0.01
1
EPA 200.7
09/13/2018 17:12
MHALL3
Lithium (Li)
0.441
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Magnesium (Mg)
16.1
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Manganese (Mn)
0.542
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Potassium (K)
12.8
mg/L
0.1
1
EPA 200.7
09/13/2018 17:12
MHALL3
Sodium (Na)
9.33
mg/L
B2 0.05
1
EPA 200.7
09/13/2018 17:12
MHALL3
Strontium (Sr)
1.23
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
Zinc (Zn)
0.021
mg/L
0.005
1
EPA 200.7
09/13/2018 17:12
MHALL3
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
- 018090179
Antimony (Sb)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Arsenic (As)
398
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Beryllium (Be)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Cadmium (Cd)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Chromium (Cr)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Cobalt (Co)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Copper (Cu)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Lead (Pb)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Molybdenum (Mo)
600
ug/L
10
10
EPA 200.8
09/12/2018 21:04
CWSPEN3
Nickel (Ni)
1.90
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Selenium (Se)
< 1
ug/L
1
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Thallium (TI) Low Level
< 0.2
ug/L
0.2
1
EPA 200.8
09/12/2018 21:04
CWSPEN3
Vanadium (V) Low Level
1.10
ug/L
0.3
1
EPA 200.8
09/12/2018 21:04
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J18090212
Site: AP-6
Collection Date: 09/10/2018 11:55 AM
Analyte
Result
Units Qualifiers
RDL
TOTAL RECOVERABLE METALS BY ICP-MS - Q18090177
Antimony (Sb)
< 1
ug/L
1
Arsenic (As)
403
ug/L
1
Beryllium (Be)
< 1
ug/L
1
Cadmium (Cd)
< 1
ug/L
1
Chromium (Cr)
3.80
ug/L
1
Cobalt (Co)
< 1
ug/L
1
Copper (Cu)
1.09
ug/L
1
Lead (Pb)
< 1
ug/L
1
Molybdenum (Mo)
583
ug/L
10
Nickel (Ni)
3.42
ug/L
1
Selenium (Se)
< 1
ug/L
1
Thallium (TI) Low Level
< 0.2
ug/L
0.2
Vanadium (V) Low Level
1.74
ug/L
0.3
RADIOLOGICAL - (Analysis Performed by GEL)
Vendor Parameter
Complete
SULFIDE - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
TOTAL DISSOLVED SOLIDS - Q18090142
TDS
360
mg/L
25
Total Carbon - Q18090221
TOC
6.3
mg/L
0.2
TOTAL SUSPENDED SOLIDS - 018090201
TSS
6
mg/L
5
Sample #: 2018028467
Matrix: GW WW
Page 6 of 58
DF
Method
Analysis Date/Time
Analyst
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
10
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
1
EPA 200.8
09/12/2018 23:23
CWSPEN3
Vendor Method v_GEL
Vendor Method V_PACE
1 SM2540C 09/11/201814:00 Mgigant
2 SM5310C/EPA9060A 09/13/201811:05 CJEllio
1 SM2540D 09/13/2018 09:30 Mgigant
Qualifiers:
132 Target analyte was detected in Method/Prep Blank(s) at a concentration greater than 1/2 the reporting limit
but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance
purposes.
M2 Matrix Spike and/or Matrix Spike Duplicate recovery was Low: the associated Laboratory Control Spike
(LCS) was acceptable.

Certificate of Laboratory Analysis Page 7 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18100004 C_NO2NO3 NITRITE + NITRATE (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
0.0029
0.0029
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
0.0044
0.0044
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.121
1.21
mg-N/L
10
1.21
100 90
110
(Colorimetric)
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.119
1.19
mg-N/L
10
1.21
98.3 90
110
(Colorimetric)
MS # 1
Parent Sample:
J18090212
-- 2018028467
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.253
0.253
mg-N/L
1
0.25
102 90
110
(Colorimetric)
MSD # 1
Parent Sample:
J18090212
-- 2018028467
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
Nitrite + Nitrate
0.251
0.251
mg-N/L
1
0.25
102 90
110
0.675
(Colorimetric)

Certificate of Laboratory Analysis Page 8 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090251 Dionex INORGANIC IONS BY IC
Blank # 1
LCS # 1
MS # 1
MSD # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Chloride
0.0298
0.0298
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
4.87
4.87
mg/L
1
5
97.4 90
110
Fluoride
4.95
4.95
mg/L
1
5
99 90
110
Sulfate
4.93
4.93
mg/L
1
5
98.7 90
110
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
5.56
556
mg/L
100
200
102 80
120
Fluoride
1.84
18.4
mg/L
10
20
87.5 80
120
Sulfate
8.46
84.6
mg/L
10
20
104 80
120
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD
Qualifier
Chloride
5.58
558
mg/L
100
200
103 80
120
0.838
Fluoride
1.84
18.4
mg/L
10
20
87.5 80
120
0.0457
Sulfate
8.45
84.5
mg/L
10
20
103 80
120
0.3

Certificate of Laboratory Analysis Page 9 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level 11 QC Summary
Q18090452 HG 245.1 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter
Measured
Final
Mercury (Hg)
0.007
0.007
Blank # 2
Parameter
Measured
Final
Mercury (Hg)
0.013
0.013
LCS # 1
LCS # 2
Parameter Measured Final
Mercury (Hg) 2.07 2.07
Parameter Measured Final
Mercury (Hg) 2.02 2.02
MS # 1
Parameter Measured Final
Mercury (Hg) 0.835 0.835
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.818 0.818
Units:
Dil
RDL
Relative Concentration
Qualifier
ug/L
1
0.05
< 1/2 RDL
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
103 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
2
101 85
115
Parent Sample:
J18090001
-- 2018027494
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
1
82.7 70
130
Parent Sample:
J18090001
-- 2018027494
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
1
1
81 70
130
2.08

Certificate of Laboratory Analysis Page 10 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level 11 QC Summary
Q18090453 HG 245.1 Dissolved Mercury Dissolved (cold vapor) in Water (Filtered)
Blank # 1
Parameter Measured Final
Mercury (Hg) 0.007 0.007
LCS # 1
Parameter Measured Final
Mercury (Hg) 2.07 2.07
MS # 1
Parameter Measured Final
Mercury (Hg) 0.68 0.68
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.687 0.687
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
103 85
115
Parent Sample:
J18090212 -- 2018028467
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
1
67.5 70
130
M2
Parent Sample:
J18090212 -- 2018028467
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
1
1
68.2 70
130
1.03 M2
Qualifiers:
M2 Matrix Spike and/or Matrix Spike Duplicate recovery was Low: the associated Laboratory Control Spike
(LCS) was acceptable.

Certificate of Laboratory Analysis Page 11 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090178 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.000873
0.000873
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000085
-0.000085
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.00365
0.00365
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.00045
0.00045
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.00183
0.00183
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
0.000178
0.000178
mg/L
1
0.005
< 1/2 RDL
Strontium (Sr)
-0.000001
-0.000001
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.000711
0.000711
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
4.91
4.91
mg/L
1
5
98.1
85
115
Barium (Ba)
4.97
4.97
mg/L
1
5
99.4
85
115
Boron (B)
4.74
4.74
mg/L
1
5
94.7
85
115
Iron (Fe)
4.78
4.78
mg/L
1
5
95.6
85
115
Lithium (Li)
4.73
4.73
mg/L
1
5
94.5
85
115
Manganese (Mn)
4.8
4.8
mg/L
1
5
96
85
115
Strontium (Sr)
4.9
4.9
mg/L
1
5
97.9
85
115
Zinc (Zn)
4.94
4.94
mg/L
1
5
98.9
85
115
MS # 1
Parent Sample:
J18090153
-- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.14
5.14
mg/L
1
5
102
70
130
Barium (Ba)
5.52
5.52
mg/L
1
5
105
70
130
Boron (B)
9.65
9.65
mg/L
1
5
106
70
130
Iron (Fe)
5.85
5.85
mg/L
1
5
101
70
130
Lithium (Li)
5.57
5.57
mg/L
1
5
103
70
130
Manganese (Mn)
5.67
5.67
mg/L
1
5
101
70
130
Strontium (Sr)
6.46
6.46
mg/L
1
5
106
70
130
Zinc (Zn)
5.14
5.14
mg/L
1
5
102
70
130
MSD # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (Al)
5
5
mg/L
1
5
99.4
70
130
2.86
Barium (Ba)
5.34
5.34
mg/L
1
5
102
70
130
3.35
Boron (B)
9.36
9.36
mg/L
1
5
99.9
70
130
3.07
Iron (Fe)
5.67
5.67
mg/L
1
5
97.7
70
130
3
Lithium (Li)
5.35
5.35
mg/L
1
5
98.6
70
130
3.99
Manganese (Mn)
5.49
5.49
mg/L
1
5
97
70
130
3.3
Strontium (Sr)
6.19
6.19
mg/L
1
5
100
70
130
4.19

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090178 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Page 12 of 58
MSD # 1 Parent Sample: J18090153 -- 2018028160
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Zinc (Zn) 4.98 4.98 mg/L 1 5 99.3 70 130 3.14

Certificate of Laboratory Analysis Page 13 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090176 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.00106
0.00106
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000098
-0.000098
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.0015
0.0015
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.0027
0.0027
mg/L
1
0.01
< 1/2 RDL
Iron (Fe)
0.00221
0.00221
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.00172
0.00172
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
0.00112
0.00112
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
0.000474
0.000474
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
0.00262
0.00262
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
0.0325
0.0325
mg/L
1
0.05
> 1/2 RDL B2
Strontium (Sr)
-0.000008
-0.000008
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.00162
0.00162
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (Al)
4.93
4.93
mg/L
1
5
98.6
85
115
Barium (Ba)
5.03
5.03
mg/L
1
5
101
85
115
Boron (B)
4.82
4.82
mg/L
1
5
96.4
85
115
Calcium (Ca)
4.9
4.9
mg/L
1
5
98.1
85
115
Iron (Fe)
4.84
4.84
mg/L
1
5
96.8
85
115
Lithium (Li)
4.79
4.79
mg/L
1
5
95.9
85
115
Magnesium (Mg)
5.09
5.09
mg/L
1
5
102
85
115
Manganese (Mn)
4.81
4.81
mg/L
1
5
96.1
85
115
Potassium (K)
4.96
4.96
mg/L
1
5
99.3
85
115
Sodium (Na)
5.01
5.01
mg/L
1
5
100
85
115
Strontium (Sr)
4.91
4.91
mg/L
1
5
98.1
85
115
Zinc (Zn)
4.97
4.97
mg/L
1
5
99.5
85
115
MS # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Aluminum (Al)
5.59
5.59
mg/L
1
5
101
70
130
Barium (Ba)
5.56
5.56
mg/L
1
5
106
70
130
Boron (B)
9.6
9.6
mg/L
1
5
102
70
130
Calcium (Ca)
65.3
65.3
mg/L
1
5
113
70
130 M4
Iron (Fe)
6.57
6.57
mg/L
1
5
99.7
70
130
Lithium (Li)
5.59
5.59
mg/L
1
5
103
70
130
Magnesium (Mg)
1.16
23.1
mg/L
20
5
113
70
130
Manganese (Mn)
5.69
5.69
mg/L
1
5
101
70
130
Potassium (K)
17.1
17.1
mg/L
1
5
106
70
130
Sodium (Na)
15.4
15.4
mg/L
1
5
108
70
130

Certificate of Laboratory Analysis Page 14 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090176 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MS # 1
Parameter
Measured
Strontium (Sr)
6.45
Zinc (Zn)
5.13
MSD # 1
Parameter
Measured
Aluminum (Al)
5.59
Barium (Ba)
5.52
Boron (B)
9.59
Calcium (Ca)
66.6
Iron (Fe)
6.54
Lithium (Li)
5.5
Magnesium (Mg)
1.17
Manganese (Mn)
5.66
Potassium (K)
17.2
Sodium (Na)
15.5
Strontium (Sr)
6.34
Zinc (Zn)
5.09
Parent Sample:
J18090153
-- 2018028160
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
6.45
mg/L
1
5
105 70
130
5.13
mg/L
1
5
102 70
130
Parent Sample:
J18090153
-- 2018028160
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
5.59
mg/L
1
5
101 70
130
0.0358
5.52
mg/L
1
5
105 70
130
0.74
9.59
mg/L
1
5
102 70
130
0.0417
66.6
mg/L
1
5
138 70
130
1.87 M4
6.54
mg/L
1
5
99.3 70
130
0.336
5.5
mg/L
1
5
101 70
130
1.66
23.3
mg/L
20
5
117 70
130
0.864
5.66
mg/L
1
5
100 70
130
0.529
17.2
mg/L
1
5
109 70
130
0.875
15.5
mg/L
1
5
111 70
130
0.983
6.34
mg/L
1
5
103 70
130
1.7
5.09
mg/L
1
5
101 70
130
0.822
Qualifiers:
132 Target analyte was detected in Method/Prep Blank(s) at a concentration greater than 1/2 the reporting limit
but less than the reporting limit. Analyte concentration in sample is valid and may be used for compliance
purposes.
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 15 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090179 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil RDL
Relative Concentration Qualifier
Antimony (Sb)
-0.006
-0.006
ug/L
1 1
< 1/2 RDL
Arsenic (As)
-0.003
-0.003
ug/L
1 1
< 1/2 RDL
Beryllium (Be)
-0.068
-0.068
ug/L
1 1
< 1/2 RDL
Cadmium (Cd)
0.007
0.007
ug/L
1 1
< 1/2 RDL
Chromium (Cr)
0.058
0.058
ug/L
1 1
< 1/2 RDL
Cobalt (Co)
0.006
0.006
ug/L
1 1
< 1/2 RDL
Copper (Cu)
-0.095
-0.095
ug/L
1 1
< 1/2 RDL
Lead (Pb)
-0.013
-0.013
ug/L
1 1
< 1/2 RDL
Molybdenum (Mo)
0.036
0.036
ug/L
1 1
< 1/2 RDL
Nickel (Ni)
-0.026
-0.026
ug/L
1 1
< 1/2 RDL
Selenium (Se)
0.042
0.042
ug/L
1 1
< 1/2 RDL
Thallium (TI) Low Level
0.044
0.044
ug/L
1 0.2
< 1/2 RDL
Vanadium (V) Low Level
0.113
0.113
ug/L
1 0.3
< 1/2 RDL
LCS # I
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
48.2
48.2
ug/L
1
50
96.4
85
115
Arsenic (As)
49.1
49.1
ug/L
1
50
98.3
85
115
Beryllium (Be)
50.5
50.5
ug/L
1
50
101
85
115
Cadmium (Cd)
49.2
49.2
ug/L
1
50
98.4
85
115
Chromium (Cr)
49.5
49.5
ug/L
1
50
99.1
85
115
Cobalt (Co)
49.5
49.5
ug/L
1
50
98.9
85
115
Copper (Cu)
49.3
49.3
ug/L
1
50
98.7
85
115
Lead (Pb)
47.9
47.9
ug/L
1
50
95.8
85
115
Molybdenum (Mo)
48.9
48.9
ug/L
1
50
97.9
85
115
Nickel (Ni)
49.2
49.2
ug/L
1
50
98.5
85
115
Selenium (Se)
48.1
48.1
ug/L
1
50
96.2
85
115
Thallium (TI) Low Level
49.6
49.6
ug/L
1
50
99.2
85
115
Vanadium (V) Low Level
49.6
49.6
ug/L
1
50
99.3
85
115
MS # I
Parent Sample:
J18090169 -- 2018028235
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
49.1
49.1
ug/L
1
50
98.2
70
130
Arsenic (As)
49.8
49.8
ug/L
1
50
98.7
70
130
Beryllium (Be)
52
52
ug/L
1
50
104
70
130
Cadmium (Cd)
48.4
48.4
ug/L
1
50
96.7
70
130
Chromium (Cr)
48.8
48.8
ug/L
1
50
96.4
70
130
Cobalt (Co)
48.5
48.5
ug/L
1
50
95.6
70
130
Copper (Cu)
48
48
ug/L
1
50
94.2
70
130
Lead (Pb)
48.1
48.1
ug/L
1
50
96.1
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090179 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
61.9
61.9
ug/L
1
50
Nickel (Ni)
51.9
51.9
ug/L
1
50
Selenium (Se)
48
48
ug/L
1
50
Thallium (TI) Low Level
45.1
45.1
ug/L
1
50
Vanadium (V) Low Level
51.9
51.9
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.3
50.3
ug/L
1
50
Arsenic (As)
51.4
51.4
ug/L
1
50
Beryllium (Be)
50.1
50.1
ug/L
1
50
Cadmium (Cd)
49.7
49.7
ug/L
1
50
Chromium (Cr)
50.4
50.4
ug/L
1
50
Cobalt (Co)
49.8
49.8
ug/L
1
50
Copper (Cu)
49.4
49.4
ug/L
1
50
Lead (Pb)
49.7
49.7
ug/L
1
50
Molybdenum (Mo)
64.3
64.3
ug/L
1
50
Nickel (Ni)
53.2
53.2
ug/L
1
50
Selenium (Se)
49.5
49.5
ug/L
1
50
Thallium (TI) Low Level
46.7
46.7
ug/L
1
50
Vanadium (V) Low Level
53.1
53.1
ug/L
1
50
Page 16 of 58
Parent Sample: J18090169 -- 2018028235
% Recovery
LCL
UCL Qualifier
98.6
70
130
94.6
70
130
95.2
70
130
90
70
130
98.8
70
130
Parent Sample: J18090169 -- 2018028235
% Recovery
LCL
UCL
RPD Qualifier
100
70
130
2.23
102
70
130
3.2
100
70
130
3.61
99.2
70
130
2.59
99.5
70
130
3.17
98.1
70
130
2.57
97
70
130
2.98
99.2
70
130
3.24
103
70
130
4.82
97.1
70
130
2.61
98.2
70
130
3.18
93.3
70
130
3.61
101
70
130
2.46

Certificate of Laboratory Analysis Page 17 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level 11 QC Summary
Q18090177 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Antimony (Sb)
0.017
0.017
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.027
0.027
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
-0.138
-0.138
ug/L
1
1
< 1/2 RDL
Cadmium (Cd)
0.006
0.006
ug/L
1
1
< 1/2 RDL
Chromium (Cr)
0.014
0.014
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.003
0.003
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.112
-0.112
ug/L
1
1
< 1/2 RDL
Lead (Pb)
-0.011
-0.011
ug/L
1
1
< 1/2 RDL
Molybdenum (Mo)
0.068
0.068
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.058
-0.058
ug/L
1
1
< 1/2 RDL
Selenium (Se)
-0.01
-0.01
ug/L
1
1
< 1/2 RDL
Thallium (TI) Low Level
0.074
0.074
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.079
0.079
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
47.8
47.8
ug/L
1
50
95.7
85
115
Arsenic (As)
48.7
48.7
ug/L
1
50
97.4
85
115
Beryllium (Be)
47.9
47.9
ug/L
1
50
95.8
85
115
Cadmium (Cd)
48.3
48.3
ug/L
1
50
96.6
85
115
Chromium (Cr)
49.1
49.1
ug/L
1
50
98.2
85
115
Cobalt (Co)
49.1
49.1
ug/L
1
50
98.2
85
115
Copper (Cu)
48.9
48.9
ug/L
1
50
97.8
85
115
Lead (Pb)
47
47
ug/L
1
50
94
85
115
Molybdenum (Mo)
48.3
48.3
ug/L
1
50
96.7
85
115
Nickel (Ni)
49
49
ug/L
1
50
98.1
85
115
Selenium (Se)
47.2
47.2
ug/L
1
50
94.4
85
115
Thallium (TI) Low Level
49.1
49.1
ug/L
1
50
98.2
85
115
Vanadium (V) Low Level
49
49
ug/L
1
50
98
85
115
NIS # 1
Parent Sample:
J18090169 -- 2018028234
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.8
50.8
ug/L
1
50
101
70
130
Arsenic (As)
52.4
52.4
ug/L
1
50
103
70
130
Beryllium (Be)
53.5
53.5
ug/L
1
50
107
70
130
Cadmium (Cd)
50.8
50.8
ug/L
1
50
102
70
130
Chromium (Cr)
50.9
50.9
ug/L
1
50
102
70
130
Cobalt (Co)
50.3
50.3
ug/L
1
50
100
70
130
Copper (Cu)
50.9
50.9
ug/L
1
50
101
70
130
Lead (Pb)
49.5
49.5
ug/L
1
50
99
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090177 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
56.8
56.8
ug/L
1
50
Nickel (Ni)
50.3
50.3
ug/L
1
50
Selenium (Se)
51.8
51.8
ug/L
1
50
Thallium (TI) Low Level
53.7
53.7
ug/L
1
50
Vanadium (V) Low Level
52.8
52.8
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.2
50.2
ug/L
1
50
Arsenic (As)
50.9
50.9
ug/L
1
50
Beryllium (Be)
51.5
51.5
ug/L
1
50
Cadmium (Cd)
49.6
49.6
ug/L
1
50
Chromium (Cr)
50.7
50.7
ug/L
1
50
Cobalt (Co)
49.7
49.7
ug/L
1
50
Copper (Cu)
50.1
50.1
ug/L
1
50
Lead (Pb)
48.6
48.6
ug/L
1
50
Molybdenum (Mo)
55.8
55.8
ug/L
1
50
Nickel (Ni)
49.3
49.3
ug/L
1
50
Selenium (Se)
48.3
48.3
ug/L
1
50
Thallium (TI) Low Level
52.1
52.1
ug/L
1
50
Vanadium (V) Low Level
52.5
52.5
ug/L
1
50
Page 18 of 58
Parent Sample: J18090169 -- 2018028234
% Recovery
LCL
UCL Qualifier
103
70
130
99.8
70
130
103
70
130
107
70
130
102
70
130
Parent Sample: J18090169 -- 2018028234
% Recovery
LCL
UCL
RPD Qualifier
100
70
130
1.24
100
70
130
3
103
70
130
3.79
99.2
70
130
2.33
101
70
130
0.479
99.2
70
130
1.14
99.3
70
130
1.49
97.1
70
130
1.88
101
70
130
2
97.9
70
130
1.92
96.2
70
130
6.99
104
70
130
2.9
102
70
130
0.654

Certificate of Laboratory Analysis Page 19 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level II QC Summary
Q18090142 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TDS
0
0
mg/L
1
25
< 1/2 RDL
Duplicate # 1
Parent Sample:
J18090153 -- 2018028160
Parameter
Measured
Final
Units:
Dil
RPD Qualifier
TDS
319
319
mg/L
1
0.945
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
TDS
96
96
mg/L
1
100
96 90
110

Certificate of Laboratory Analysis Page 20 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level 11 QC Summary
Q18090221 Total Carbon Total Carbon
Blank # 1
Parameter Measured Final
TOC 0.011
Blank # 2
Parameter Measured Final
TOC 0.044
Blank # 3
Parameter Measured Final
TOC 0
LCS # 1
Parameter Measured Final
TOC 2.31
LCS # 2
Parameter Measured Final
TOC 2.4
LCS # 3
Parameter Measured Final
TOC 2.32
MS # 1
Parameter Measured Final
TOC 4.91
MSD # 1
Parameter Measured Final
TOC 5
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
RDL
Relative Concentration
Qualifier
mg/L
1
0.1
< 1/2 RDL
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
97.1 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
101 85
115
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2.375
97.7 85
115
Parent Sample:
J18090117 -- 2018027907
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
mg/L
1
2
98 80
120
Parent Sample:
J18090117 -- 2018027907
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
mg/L
1
2
103 80
120
4.54

Certificate of Laboratory Analysis Page 21 of 58
This report shall not be reproduced, except in full.
Order # J18090212
Level 11 QC Summary
Q18090201 TSS TOTAL SUSPENDED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TSS
0
0
mg/L
1
5
< 1/2 RDL
Duplicate # 1
Parent Sample:
J18080036 -- 2018024092
Parameter
Measured
Final
Units:
Dil
RPD
Qualifier
TSS
1.2
1.2
mg/L
1
0
Duplicate # 2
Parent Sample:
J18090265 -- 2018028769
Parameter
Measured
Final
Units:
Dil
RPD
Qualifier
TSS
37.8
37.8
mg/L
1
0.531
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TSS
53.2
53.2
mg/L
1
50
106 90
110

aceAnalytical
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September 18, 2018
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg.7405 MG30A2
Huntersville, NC 28078
RE: Project: J 18090212
Pace Project No.: 92399014
Dear Program Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on September 11, 2018.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
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
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without the written consent of Pace Analytical Services, LLC.
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Project: J18090212
Pace Project No.: 92399014
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
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 21

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SAMPLE SUMMARY
Project: J18090212
Pace Project No.: 92399014
Lab ID Sample ID Matrix Date Collected Date Received
92399014001 2018028467 Water 09/10/1811:55 09/11/1813:45
REPORT OF LABORATORY ANALYSIS
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SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
J18090212
92399014
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92399014001
2018028467
SM 2320B-2011
ECH
3
PASI-A
SM 4500-S2D-2011
GC
1
PASI-A
EPA 218.7 Rev 1.0 2011
CDC
1
PASI-A
EPA 365.1 Rev 2.0 1993
BRJ
1
PASI-A
EPA 365.1
BRJ
1
PASI-A
REPORT OF LABORATORY ANALYSIS
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SUMMARY OF DETECTION
Project:
Pace Project No.:
J18090212
92399014
Lab Sample ID
Client Sample ID
Method
Parameters
Result
Units
Report Limit
Analyzed Qualifiers
92399014001
2018028467
SM 2320B-2011
Alkalinity, Bicarbonate (CaCO3)
225
mg/L
5.0
09/13/18 04:39
SM 2320B-2011
Alkalinity, Total as CaCO3
225
mg/L
5.0
09/13/18 04:39
EPA 365.1 Rev 2.0 1993 Phosphorus
0.11
mg/L
0.050
09/13/18 06:56
EPA 365.1
Phosphorus, Dissolved
0.084
mg/L
0.050
09/13/18 07:36
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090212
Pace Project No.: 92399014
Method: SM 2320B-2011
Description: 2320B Alkalinity
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for SM 232013-2011. 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 6 of 21

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PROJECT NARRATIVE
Project: J18090212
Pace Project No.: 92399014
Method: SM 4500-S2D-2011
Description: 4500S2D Sulfide Water
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for SM 4500-S2D-2011. All samples were received in acceptable condition with any exceptions noted below or
on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 430972
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92399005001,92399005011
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MSD (Lab ID: 2377228)
• Sulfide
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090212
Pace Project No.: 92399014
Method: EPA 218.7 Rev 1.0 2011
Description: 218.7 Chromium, Hexavalent
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 218.7 Rev 1.0 2011. All samples were received in acceptable condition with any exceptions noted
below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 430211
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92398867001,92399005010
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2373957)
• Chromium, Hexavalent
• MSD (Lab ID: 2373958)
• Chromium, Hexavalent
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090212
Pace Project No.: 92399014
Method: EPA 365.1 Rev 2.0 1993
Description: 365.1 Phosphorus, Total
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 365.1 Rev 2.0 1993. 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 365.1 Rev 2.0 1993 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 9 of 21

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PROJECT NARRATIVE
Project: J18090212
Pace Project No.: 92399014
Method: EPA 365.1
Description: 365.1 Phosphorus, Total, Diss.
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 365.1. 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 365.1 Rev 2.0 1993 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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ANALYTICAL RESULTS
Project: J18090212
Pace Project No.: 92399014
Sample: 2018028467 Lab ID: 92399014001 Collected: 09/10/18 11:55 Received: 09/11/18 13:45 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2320B Alkalinity
Alkalinity, Bicarbonate (CaCO3)
Alkalinity, Carbonate (CaCO3)
Alkalinity, Total as CaCO3
4500S21) Sulfide Water
Sulfide
218.7 Chromium, Hexavalent
Chromium, Hexavalent
365.1 Phosphorus, Total
Phosphorus
365.1 Phosphorus, Total, Diss
Phosphorus, Dissolved
Date: 09/18/2018 01:46 PM
Analytical Method: SM 2320B-2011
225 mg/L 5.0
1
09/13/18 04:39
ND mg/L 5.0
1
09/13/18 04:39
225 mg/L 5.0
1
09/13/18 04:39
Analytical Method: SM 4500-S2D-2011
ND mg/L 0.10
1
09/17/1819:15
18496-25-8
Analytical Method: EPA 218.7 Rev 1.0 2011
ND ug/L 0.025
1
09/12/18 22:05
18540-29-9
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
0.11 mg/L 0.050
1
09/12/18 22:05 09/13/18 06:56
7723-14-0
Analytical Method: EPA 365.1 Preparation Method: EPA
365.1 Rev 2.0 1993
0.084 mg/L 0.050
1
09/12/18 22:05 09/13/18 07:36
7723-14-0
REPORT OF LABORATORY ANALYSIS
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Page 11 of 21

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QUALITY CONTROL DATA
Project: J18090212
Pace Project No.: 92399014
QC Batch: 430249 Analysis Method: SM 2320B-2011
QC Batch Method: SM 2320B-2011 Analysis Description: 2320E Alkalinity
Associated Lab Samples: 92399014001
METHOD BLANK: 2374049
Associated Lab Samples: 92399014001
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Alkalinity, Bicarbonate (CaCO3) mg/L
Alkalinity, Carbonate (CaCO3) mg/L
LABORATORY CONTROL SAMPLE: 2374050
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
ND 5.0 09/13/18 00:11
ND 5.0 09/13/18 00:11
ND 5.0 09/13/18 00:11
Spike LCS LCS % Rec
Conc. Result % Rec Limits Qualifiers
50 51.5 103 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374051 2374052
MS MSD
92399005003 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L ND 50 50 48.9 47.1 98 94 80-120 4 25
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374053 2374055
MS MSD
92399005013 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L 15.7 50 50 66.4 65.4 101 99 80-120 2 25
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: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC.
Page 12 of 21

aceAnalytical
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Pace Analytical Services, LLC
og8�lsi4c6r�e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J18090212
Pace Project No.: 92399014
QC Batch: 430972
Analysis Method: SM 4500-S2D-2011
QC Batch Method: SM 4500-S2D-2011
Analysis Description: 4500S2D Sulfide Water
Associated Lab Samples: 92399014001
METHOD BLANK: 2377225
Matrix: Water
Associated Lab Samples: 92399014001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Sulfide mg/L
ND 0.10
09/17/1818:56
LABORATORY CONTROL SAMPLE: 2377226
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Sulfide mg/L
.5 0.51
102 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2377227 2377228
MS MSD
92399005001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Sulfide mg/L 0.57
.5 .5 1.0
0.94 88 74 80-120 7 10 M1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2377229 2377230
MS MSD
92399005011 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 .5 .5 0.52 0.55 104 109 80-120 4 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: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC.
Page 13 of 21

aceAnalytical
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Pace Analytical Services, LLC
og8� i 6f,Pr e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J18090212
Pace Project No.: 92399014
QC Batch: 430211
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
Associated Lab Samples: 92399014001
METHOD BLANK: 2373953
Matrix: Water
Associated Lab Samples: 92399014001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Chromium, Hexavalent ug/L
ND 0.025
09/12/18 14:00
LABORATORY CONTROL SAMPLE: 2373954
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Chromium, Hexavalent ug/L
.1 0.11
108 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2373955 2373956
MS MSD
92398867001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Chromium, Hexavalent ug/L ND
.1 .1 0.10
0.097 104 97 90-110 7 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2373957 2373958
MS MSD
92399005010 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 0.11 .1 .1 0.19 0.18 77 69 90-110 4 10 M1
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: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC.
Page 14 of 21

aceAnalytical
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Pace Analytical Services, LLC
og8� 6f,Pr e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J18090212
Pace Project No.: 92399014
QC Batch: 430403
Analysis Method: EPA 365.1 Rev 2.0 1993
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Total
Associated Lab Samples: 92399014001
METHOD BLANK: 2374920
Matrix: Water
Associated Lab Samples: 92399014001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus mg/L
ND 0.050
09/13/18 06:32
LABORATORY CONTROL SAMPLE: 2374921
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus mg/L
2.5 2.6
105 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374924 2374925
MS MSD
92399094008
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.39
2.5 2.5 3.0
2.9 104 102 90-110 2 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374933 2374934
MS MSD
92399005019 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.16 2.5 2.5 2.7 2.7 104 103 90-110 1 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC.
Page 15 of 21

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8�l ,6f,P�e. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J18090212
Pace Project No.: 92399014
QC Batch: 430404
Analysis Method: EPA 365.1
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Dissolved
Associated Lab Samples: 92399014001
METHOD BLANK: 2374935
Matrix: Water
Associated Lab Samples: 92399014001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus, Dissolved mg/L
ND 0.050
09/13/18 07:14
LABORATORY CONTROL SAMPLE: 2374936
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus, Dissolved mg/L
2.5 2.6
104 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374937 2374938
MS MSD
92398867001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L 0.039J
2.5 2.5 2.6
2.7 104 105 90-110 1 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2374939 2374940
MS MSD
92399005010 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L 0.065 2.5 2.5 2.7 2.7 104 106 90-110 1 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC.
Page 16 of 21

aceAnalytical
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Pace Analytical Services, LLC
og8� � 6f"Pie. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALIFIERS
Project: J18090212
Pace Project No.: 92399014
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.
LABORATORIES
PASI-A Pace Analytical Services - Asheville
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/18/2018 01:46 PM without the written consent of Pace Analytical Services, LLC. Page 17 of 21

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8� i 6f"Pie. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: J18090212
Pace Project No.: 92399014
Lab ID
Sample ID
QC Batch Method
QC Batch
92399014001
2018028467
SM 2320B-2011
430249
92399014001
2018028467
SM 4500-S2D-2011
430972
92399014001
2018028467
EPA 218.7 Rev1.0 2011
430211
92399014001
2018028467
EPA 365.1 Rev 2.0 1993
430403
92399014001
2018028467
EPA 365.1 Rev 2.0 1993
430404
Date: 09/18/2018 01:46 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Analytical Method
Analytical
Batch
EPA 365.1 Rev 2.0 1993 430450
EPA 365.1 430451
Page 18 of 21

Document Name:
Document Revised: February 7, 01B
__ aceAnalyflcal _
Sample Condition Upon Receipt(SCUR)
Page 1 of 2
Document No.:
Issuing Authority:
F-CAR-05-033-Rev,06
Pace Carolinas Quality Office
58
Laboratory receiving samples;
Asheville ❑ Eden❑ Greenwood ❑ Huntersvllle FJ/ Raleigh❑ Mechanicsville[]
Sample Condition Client Name: WO# : 92399014
Upon Rpceipt
111111111 !!I! I f!! 11 Ill
V_ roject #
Courier: ❑Fed Ex l ❑UPS ❑U5P5 []clientg238g014
❑ Commercial ❑Pace ❑Other:
-
Custody Seal Present? ❑Yes 04o Seals Intact? []Yes ❑p7 i — }}
Cate/Initials Person Examining Contents:
Packing Material: ❑Bubble Wrap ❑Bubble Bags JAIM one ❑ Other Biological Tissue -F.r�ozen?
Thermomet f; ❑Yes [:]No E�aa
IA Gun ID.
92TO45 Type of Ice: wet []Blue ❑None
Cooler Temp (°C): I . _� Correction Factor; Add/Subtract (°C) _�
Temp should be above freezing to 6°C
Cooler Temp Corrected ('C): �
❑Samples vut of temp criterPa. 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 linternationally,
MYes IINo inriudinp Hawaii and P[IPrtn Rirnl? rlYpa nNn
Comments/Dlscrepancy;
Chain of Custody Present?
des
❑No
❑N/A
1.
Samples Arrived within Hold Time?
Yes
[]No
❑N/A
2.
Short Hold Time Analysis (<72 hr.17
[]Yes
No
❑N/A
S.
Rush Turn Around Time Requested?
❑Yes
[ o
El N/A
4.
Sufficient Volume?
es
❑No
[-]N/A
S.
Correct Containers Used?
-Pace Containers Used?
'fIYes
Yes
❑No
[-]No
❑N/A
❑N/A
6,
Containers Intact?
Elyes
[:]No
❑N/A
7.
Dissolved analysis: Samples Field Filtered?
efYes
❑No
❑NIA
B.
Sample Labels Match COC?
-Includes Date/Time/ID/Analysis Matrix:
yes
❑N❑
❑N/A
9.
Headspace in VOA Vials (>5.6mm)?
❑Yes
[]No
/A
10.
Trip Blank Present?
Trip Blank Custody Seals Present?
❑yes
❑Yes
[]NO
❑No
NN/A
®N/A
11.
COMMENTS/SAMPLE DISCREPANCY Field Data Required? ❑Yes ❑No
Lot ID of split containers
CLIENT NOTIFICATION/RESOLUTION
Person contacted: Date/Time:
Project Manager SCURF Review: Date:
Project Manager SRF Review:
Date:
Page 19 of 21

Document Name:
Document Revised: February 7, 1B
i aceArzalytical�
Sample Condition Upon Recelpt(SCUR)
Page 1 of 2
Document No.:
Issuing Authority:
F•CAR•CS•033-Rev.06
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, DRO/8015 (water) DOC, LLHg
**Bottom half of box is to list number of bottle
Project Wp# : 92399014
58
PM: KLH1 Due Date: 09/18/18
CLIENT: 92-Duke Ener
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Sample ID
Type of Preservative
PH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
Lot d
Note: Whenever there is a discrepanry affecting North Carolina compliance samples, a copy ofthis form will be sent to the North Carolina DEHNR Certification Office 0.e.
Out of hold, incorrect preservative, out of temp, incorrect containers.
Page 20 of 21

-------------------------- CHAIN OF CUSTODY REGURL) AND Y[,IS REQIJFST Fpi�ll
Duke Energy Analytical Laho atery -- _I '- _ - - - - - - - - - - - - - - - - - ---- --- - -cal L--- --- - 11ee -- --------_. -
Duke Energy -.----- ------
Analytical Laboratory crw xcmAx(e,xrma..rsl Order
r. ., , 11 ` trix: GW_W4M e,.�...n a.r r,.m NC
JJIa Hrax, / V
Chain of Custody a H,.....vm.. HSC
. c. neon--
Sample Log Iraq vs.uu r..; ;Lagged By: C���.
rw nf..sptr SAMPLE PROGAM
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PACE/� l]/f RCRAwaste
.__ _coprr,Tef pJ�F._..__
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1 5636313 Flltrallon (0.45 um) Unfiltered
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Page _1 of
DISTRIBUTION
ORIGINAL l0 LAB, COPY In CLIENT
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® Laboratories LLc
a member of The GEL Group ivv;
October 10, 2018
Anne Pridgeon
Duke Energy Central Lab
13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Re: Ash Basin Pump Test
Work Order: 459313
SDG: J18090212
Dear Anne Pridgeon:
PO Box 30712 Charleston_ SC 29417
2040 Savage Road Chad "on. 8C 2N07
P 843.556.8171
F 843.766.1178
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the
sample(s) we received on September 17, 2018. This original data report has been prepared and reviewed in
accordance with GEL's standard operating procedures.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs
on time every time. We trust that you will find everything in order and to your satisfaction. If you have any
questions, please do not hesitate to call me at [phone], ext. 4705.
Sincerely,/
V
am
Katherine Cates
Project Manager
Purchase Order: 5640332
Enclosures
gel. com

Page 44 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis Report
for
DUP0007 Duke Energy Carolinas, LLC (PO 5640332)
Client SDG: J18090212 GEL Work Order: 459313
The Qualifiers in this report are defined as follows:
* A quality control analyte recovery is outside of specified acceptance criteria
** Analyte is a Tracer compound
** Analyte is a surrogate compound
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the Certificate of Analysis.
The designation ND, if present, appears in the result column when the analyte concentration is not detected above
the limit as defined in the 'U' qualifier above.
This data report has been prepared and reviewed in accordance with GEL Laboratories LLC
standard operating procedures. Please direct any questions to your Project Manager, Katherine Cates.
Reviewed by
Page 2 of 15

GEL LABORATORIES LLC Page 45of58
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analvsis
Report Date: October 10, 2018
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID: 2018028467
Project: DUKE00702
Sample ID: 459313001
Client ID: DUP0007
Matrix: Water
Collect Date: 10-SEP-18 11:55
Receive Date: 17-SEP-18
Collector: Client
Parameter Qualifier Result Uncertainty MDC RL
Units PF DF Analyst Date Time Batch Method
Rad Gas Flow Proportional Counting
GFPC, Ra228, Liquid "As Received"
Radium-228 U 0.185 +/-0.279 0.484 1.00
pCi/L JXC9 09/26/18 1115 1802597 1
Rad Radium-226
Lucas Cell, Ra226, liquid "As Received"
Radium-226 U 0.477 +/-0.382 0.573 1.00
pCi/L PCW 09/28/18 0815 1802182 2
The following Analytical Methods were performed:
Method Description
Analyst Comments
1 EPA 904.0/SW846 9320 Modified
2 EPA 903.1 Modified
Surrogate/Tracer Recovery Test
Result Nominal Recovery% Acceptable Limits
Barium-133 Tracer GFPC, Ra228, Liquid "As Received"
81 (15%-125%)
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 3 of 15

GEL LABORATORIES LLC Page 46of58
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
2018028467
459313001
Water
10-SEP-18 11:55
17-SEP-18
Client
Report Date: October 10, 2018
Project: DUKE00702
Client ID: DUP0007
Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method
Metals Analysis-ICP-MS
Calculation for Total U "See Parent Products"
Total Uranium 0.00205 0.000067 0.0002 ug/ml BAJ 09/27/18 1407 1806676 1
The following Prep Methods were performed:
Method Description Analyst Date Time Prep Batch
SW846 3010A SW 846 3010 Acid Digestion
The following Analytical Methods were performed:
JXM8 09/18/18 1254 1802516
Method Description Analyst Comments
1 SW846 6020
Notes:
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 4 of 15

Page 47 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: October 10, 2018
Duke Energy Central Lab Page 1 of 2
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459313
Parmname
NOM
Sample
Qual
QC
Units
RPD%
REC%
Range Anlst
Date Time
Rad Gas Flow
Batch 1802597
QC1204113995
459307008 DUP
Radium-228
U
0.279
U
0.208
pCi/L
N/A
N/A JXC9
09/26/1811:24
Uncertainty
+/-0.323
+/-0.235
QC1204113996
LCS
Radium-228
5.77
4.42
pCi/L
76.6
(75%-125%)
09/26/1812:40
Uncertainty
+/-0.667
QC1204113994
MB
Radium-228
U
0.132
pCi/L
09/26/1811:24
Uncertainty
+/-0.270
Rad Ra-226
Batch 1802182
QC1204113023
459311011 DUP
Radium-226
U
0.039
U
0.115
pCi/L
N/A
N/A PCW
09/28/18 08:45
Uncertainty
+/-0.254
+/-0.291
QC1204113025
LCS
Radium-226
26.0
28.3
pCi/L
109
(75%-125%)
09/28/18 08:45
Uncertainty
+/-2.30
QC1204113022
MB
Radium-226
U
0.137
pCi/L
09/28/18 08:45
Uncertainty
+/-0.237
QC1204113024
459311011 MS
Radium-226
130 U
0.039
118
pCi/L
90.9
(75%-125%)
09/28/18 08:45
Uncertainty
+/-0.254
+/-9.34
QC1204118722
459311011 MSD
Radium-226
130 U
0.039
112
pCi/L
4.96
86.5
(0%-20%)
09/28/18 08:45
Uncertainty
+/-0.254
+/-9.24
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
The Qualifiers in this report are defined as follows:
** Analyte is a Tracer compound
< Result is less than value reported
> Result is greater than value reported
Page 5 of 15

Page 48 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459313
Page 2 of 2
Parmname NOM Sample Oual OC Units RPD% REC% Rance Anlst Date Time
BD Results are either below the MDC or tracer recovery is low
FA Failed analysis.
H Analytical holding time was exceeded
J Value is estimated
K Analyte present. Reported value may be biased high. Actual value is expected to be lower.
L Analyte present. Reported value may be biased low. Actual value is expected to be higher.
M M if above MDC and less than LLD
M REMP Result > MDC/CL and < RDL
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
UI Gamma Spectroscopy --Uncertain identification
UJ Gamma Spectroscopy --Uncertain identification
UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 6 of 15

Page 49 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: October 10, 2018
Duke Energy Central Lab Page 1 of 3
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459313
Parmname
NOM Sample
Qual
QC
Units
RPD/D%
REC% Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1802517
QC1204113820 459313001 DUP
Uranium-233
U ND
U
ND
ug/mL
N/A
SKJ
09/24/1815:13
Uranium-234
U ND
U
ND
ug/mL
N/A
Uranium-236
U ND
U
ND
ug/mL
N/A
Uranium-238
0.00205
0.00264
ug/mL
25.1 *
(0%-20%)
09/21/18 07:52
QC1204113819 LCS
Uranium-238
0.0496
0.0487
ug/mL
98.1 (80%-120%)
09/21/18 07:46
QC1204113823 LCS
Uranium-233
Uranium-234
Uranium-236
QC1204113818 MB
Uranium-233
Uranium-234
Uranium-236
Uranium-238
0.0005
0.000505
ug/mL 101 (80%-120%) 09/24/1815:10
0.00055
0.000561
u9/mL 102 (80%-120%)
0.005
0.00539
u9/mL 108 (80%-120%)
U
ND
ug/mL 09/24/1815:09
U
ND
ug/mL
U
ND
ug/mL
U
ND
ug/mL 09/21/18 07:45
Page 7 of 15

Page 50 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459313
Page 2 of 3
Parmname
NOM
Sample
Qual
QC
Units
RPD/D%
REC%
Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1802517
QC1204113821 459313001 MS
Uranium-238
0.0496
0.00205
0.0551
ug/mL
107
(75%-125%) SKJ
09/21/18 07:53
QC1204113824 459313001 MS
Uranium-233
0.0005
U
ND
0.000507
ug/mL
101
(75%-125%)
09/24/1815:15
Uranium-234
0.00055
U
ND
0.000578
ug/mL
105
(75%-125%)
Uranium-236
0.005
U
ND
0.00552
ug/mL
110
(75%-125%)
QC1204113822 459313001 SDILT
Uranium-233
U
ND
U
ND
ug/L
N/A
(0%-10%)
09/24/1815:16
Uranium-234
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-236
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-238
2.05
0.401
ug/L
2.24
(0%-10%)
09/21/18 07:55
Notes:
The Qualifiers in this report are defined as follows:
< Result is less than value reported
> Result is greater than value reported
E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria
FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed
invalid for reporting to regulatory agencies
H Analytical holding time was exceeded
J Value is estimated
N Metals --The Matrix spike sample recovery is not within specified control limits
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
Page 8 of 15

Page 51 of 58
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459313 Page 3 of 3
Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 9 of 15

It
UQ
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UPI
G, 0, � �e 52 of 58
__._._._._._._._.__._._._._._._._._.___ _ CHAIN OF CUSTODY RECORD A_ND ANALYSIS REQUEST FORM
Duke Enert,,j)t Duke Energy Araytical laboratory t ------------------------------------------------------------- , Analytical Laboratory Use Only-----'_._._,_._._._._._ _._ _._._--------
AnalyticalLaborato i a.xcod3014 A teetxmarecs) Order, � trt4x GIN WW Page_1_of_1_
t'Y tus4f,rar>rryRa # €sM,r,,..o,,r�.arBm. NC_ sc DISTRIBUTION
Chain of Custody 3 Hum,rsvitM, R. C. xaara iL gaaa0y — -FD to b tt ,?Y^'(,-- -�- --_"-- ORIGINAL to LAB, COPY to CLIENT
Sample Log na4)er5di45 raa Wa :eL}V ' / � ^"�—.--.�`--
t l / SAMPLE PROGRAM
_._ _.__ _i_._ L�oaL®75 So�4 �
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by 4CP (TRM): At, Ba, B, Ca, Fe, Li, Mg, Mn, K, No, Sr, Zn
metals ICP, IMS, Hg (Excluding Ca, Mg, K,. No)
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Page 53 of 58
Laboratories LX
SAMPLE RECEIPT &REVIEW FORM
[R,
ient: V �l_�
SDG/AR/COC/Work Order Tv 9 31 ± `�5 `�311 t �
ceived By: ZKW ! i ` i
Date Received: .�J ! �
Carrier and Tracking Number
,d Hazard Information
as a DOT Hazardous?
nples marked or classified as
> pacxage, COC, and/or Samples marked HAZ?
Sample Receipt Criteria
1 Shipping containers received intact and
2'Chain of custody documents included
3 INamples requiring cold preservation
within (0 < 6 deg. C)?*
4 Daily check performed and passed on IR
temperature gun?
5'Sample containers intact and sealed?
6 Samples requiring chemical preservation
at proper pH?
FedEx Express FedEx Ground UPS Field Seivi
tiurie Other
r't mod'
4 �
JF]amrnable
ounts > 100epm on samples not marked "radioactive", contaci th, R' diation Safety Group for further
ion.
lass Shipped: mod,
Net Counts Observed* (Observed Counts - Area Background Court s): PM
as: Rad 1 Rad 2 Rad 3 mR/Hr
ct Hazards below, and contact the GEL Safety Group,
Flammable Foreign Soil RCRA Asbestos Beryllium Other.
Comments/Qualifiers (Required for Non -Con
Seals broken Damaged container Leaking container
ntcmoo: wed t lee/ Ice Packs Dry ice oae) Other.
`ail temperatures arc recorded in Celsius
Temperature Device Serial #: IR3-1E
S—ndaty'ltmpemtun: Dcvicu Serial # (ttApplicable):
itcle Applicable: Seals broken Damaged container Leaking container Oi
If Yes, Are Encores or Soil Kits present? Yes____ No_,_- (If
Do Do VOA vials contain acid preservation? Yes_ NoisAnalysis? any samples require Volatile _ VOA vials free of headspace? Yes____ No,_ N/A_
An
Sample ID's and containers affected:
8 Samples received within holding time? ID's and rests affected:
9 Sample ID's on COC match ID's on Sample ID's and containers affected:
bottles?
10 Date & time on COC match date time Sample IDs affected:
on bottles?
11 Number of containers received match Sample Us affected:
number indicated on COC?�
12 Are sample containers identable as
GEL rovided?
13 COC form is properly signed in
relinquished/received sections?
:omments (Use Continuation Form if needed):
-'WC�n9('j`1t t(x` i jtg CG(�� a y�C�sr 2C)1jd Z
oh(� I dvt �P� Cn— e, `� f --
mac- ve r,� 1 a M ":M Co Nc deS ¢t 11 Z. e r*,X � I
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PM (or PMA) review: Initials Date t
If IPage of {�
Items)
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TEMP: �l�C
take to VOA Freezer)
— (If unknown, select No)
7
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r UL-UHL-SR-001 Rev 5
Page 11 of 15

Page 54 of 58
Technical Case Narrative
Duke Energy Carolinas, LLC (DUPC)
SDG #: J18090212
Work Order #: 459313
Metals
Product: Determination of Metals by ICP-MS
Analytical Method: SW846 3010A/6020A
Analytical Procedure: GL-MA-E-014 REV# 33
Analytical Batch: 1802517
Preparation Method: SW846 3010A
Preparation Procedure: GL-MA-E-008 REV# 19
Preparation Batch: 1802516
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID#
Client Sample Identification
459313001
2018028467
1204113818
Method Blank (MB)ICP-MS
1204113819
Laboratory Control Sample (LCS)
1204113823
Laboratory Control Sample (LCS)
1204113822
459313001(2018028467L) Serial Dilution (SD)
1204113820
459313001(2018028467D) Sample Duplicate (DUP)
1204113821
459313001(2018028467S) Matrix Spike (MS)
1204113824
459313001(2018028467S) Matrix Spike (MS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary:
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Calibration Information
ICSA/ICSAB Statement
For the ICP-MS analysis, the ICSA solution contains analyte concentrations which are verified trace impurities
indigenous to the purchased standard.
Quality Control (QC) Information
Duplicate Relative Percent Difference (RPD) Statement
The RPD obtained from the designated sample duplicate (DUP) is evaluated based on acceptance criteria of 20%
when the sample is >5X the contract required reporting limit (RL). In cases where either the sample or duplicate
value is less than 5X the RL, a control of +/-RL is used to evaluate the DUP results. Not all the applicable
analyte RPD values were within the acceptance criteria.
Sample
Analyte
Value
1204113820 (2018028467DUP)
Uranium-238
25.1* (0%-20%)
Page 12 of 15

Page 55 of 58
Radiochemistr
Product: GFPC, Ra228, Liquid
Analytical Method: EPA 904.0/SW846 9320 Modified
Analytical Procedure: GL-RAD-A-063 REV# 2
Analytical Batch: 1802597
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459313001 2018028467
1204113994 Method Blank (MB)
1204113995 459307008(NonSDG) Sample Duplicate (DUP)
1204113996 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary•
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Technical Information
Recounts
Sample 1204113996 (LCS) was recounted due to low recovery. The recount is reported.
Product: Lucas Cell, Ra226, liquid
Analytical Method: EPA 903.1 Modified
Analytical Procedure: GL-RAD-A-008 REV# 15
Analytical Batch: 1802182
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459313001 2018028467
1204113022 Method Blank (MB)
1204113023 459311011(NonSDG) Sample Duplicate (DUP)
1204113024 459311011(NonSDG) Matrix Spike (MS)
1204113025 Laboratory Control Sample (LCS)
1204118722 459311011(NonSDG) Matrix Spike Duplicate (MSD)
The samples in this SDG were analyzed on an "as received" basis.
Page 13 of 15

Page 56 of 58
Data Summary
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Miscellaneous Information
Additional Comments
The matrix spike and matrix spike duplicate, 1204113024 (Non SDG 459311011MS) and 1204118722 (Non
SDG 459311011MSD), aliquots were reduced to conserve sample volume.
Certification Statement
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 14 of 15

Page 57 of 58
List of current GEL Certifications as of 10 October 2018
State
Certification
Alaska
17-018
Arkansas
88-0651
CLIA
42DO904046
California
2940
Colorado
SC00012
Connecticut
PH-0169
DoD ELAP/ ISO17025 A2LA
2567.01
Florida NELAP
E87156
Foreign Soils Permit
P330-15-00283, P330-15-00253
Georgia
SC00012
Georgia SDWA
967
Hawaii
SC00012
Idaho Chemistry
SC00012
Idaho Radiochemistry
SC00012
Illinois NELAP
200029
Indiana
C—SC-01
Kansas NELAP
E-10332
Kentucky SDWA
90129
Kentucky Wastewater
90129
Louisiana NELAP
03046 (AI33904)
Louisiana SDWA
LA180011
Maryland
270
Massachusetts
M—SCO12
Michigan
9976
Mississippi
SC00012
Nebraska
NE—OS-26-13
Nevada
SC000122018-1
New Hampshire NELAP
205415
New Jersey NELAP
SCO02
New Mexico
SC00012
New York NELAP
11501
North Carolina
233
North Carolina SDWA
45709
North Dakota
R-158
Oklahoma
9904
Pennsylvania NELAP
68-00485
Puerto Rico
SC00012
S. Carolina Radiochem
10120002
South Carolina Chemistry
10120001
Tennessee
TN 02934
Texas NELAP
T104704235-18-13
Utah NELAP
SC000122018-27
Vermont
VT87156
Virginia NELAP
460202
Washington
C780
Page 15 of 15

Ao- i, kK "Solsir, i�-ucApiri� 1:�s%
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM
Page 58 of 58
.20�<
Duke Energy Duke Energy Analytical Laboratory Analytical Laborato Use On
Anal Analytical Laborato Mail Code MG03A2 (BUIWing 7405) iOrder �ly� '% trix: GW WW s.mgss ona�mr��e rram: NC_ SC_
y ry 13339 Ha,,— Ferry Rd �0 f
Chain of Custody 8 H„n--1W, N. C. 20078 Logged By Date �+
Sample Log (70{1 a755245 Fee, `J SAMPLE PROGRAM
_ _ L]94LB]5_50]B _ _ _ _ _ _ _. _ Greund Watar X NPDEs
_ - _'-' ent Drinking water UST
Project Name '. IMF' Assessment Water PHR.Na. PACE _g RCRA Waste_
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Client: AB GW
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MG03A2
.terbody: s�aa: Get ContainerTypa PET PET PET PET PET PET
Sample Description or ID 5640332 _
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DISTRIBUTION
ORIGINAL to LAB, COPY to CLIENT
COC REV3 DATE:
(1st Quarter 2018)
6/7/18
� Filtarsd
ICN a . ICe
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cemmama ELEM NTS by ICP_MS (T ): A, As, Be, Cd, Cr, Co, Cu, Mo, Ni, Pb, Se, TI (LL), V (LL) ELEMENTS
by ICP (TRM): Al, Be, B, Ca, Fe, Li, Mg, Mn, K, No, Sr, Zn Hg by 245.1 Dissolved metals: All
metals ICP, IMS, Hg (Excluding Ca, Mg, K, No)
'Bromide analysis Sutton Wells Only
)v

DUKE Analytical Laboratory
ENERGY
13339 Hagers Ferry Road
Huntersville, NC 28078-7929
McGuire Nuclear Complex - MG03A2
Phone:[phone] Fax:[phone]
Order Summary Report
Order Number: J18090240
Project Name: MAYO STEAM - PUMP TEST
Customer Name(s): Kim Witt, Bryan Moeller, Synterra
Customer Address: Mayo Steam Plant
10660 Boston Road
Roxboro,North Carolina 27574
Lab Contact: Peggy Kendall Phone: [phone]
Report Authorized By: { Date: 10/10/2018
(Signature) 0
P�endall
Program Comments:
Please contact the Program Manager (Peggy Kendall) with any questions regarding this report.
Data Flags & Calculations:
Page 1 of 59
Any analytical tests or individual analytes within a test flagged with a Qualifier indicate a deviation from the method quality
system or quality control requirement. The qualifier description is found at the end of the Certificate of Analysis (sample results)
under the qualifiers heading. All results are reported on a dry weight basis unless otherwise noted. Subcontracted data
included on the Duke Certificate of Analysis is to be used as information only. Certified vendor results can be found in the
subcontracted lab final report. Duke Energy Analytical Laboratory subcontracts analyses to other vendor laboratories that have
been qualified by Duke Energy to perform these analyses except where noted.
Data Package:
This data package includes analytical results that are applicable only to the samples described in this narrative. An estimation of
the uncertainty of measurement for the results in the report is available upon request. This report shall not be reproduced, except
in full, without the written consent of the Analytical Laboratory. Please contact the Analytical laboratory with any questions. The
order of individual sections within this report is as follows:
Job Summary Report, Sample Identification, Technical Validation of Data Package, Analytical Laboratory Certificate of Analysis,
Analytical Laboratory QC Reports, Sub -contracted Laboratory Results, Customer Specific Data Sheets, Reports &
Documentation, Customer Database Entries, Test Case Narratives, Chain of Custody (COC)
Certification:
The Analytical Laboratory holds the following State Certifications : North Carolina (DENR) Certificate #248, South Carolina
(DHEC) Laboratory ID # 99005. Contact the Analytical Laboratory for definitive information about the certification status of
specific methods.

Sample ID's & Descriptions:
Collection
Sample ID Plant/Station Date and Time Collected By
2018028655 MAYO STEAM 11-Sep-18 12:43 PM Erin Kinsey
1 Total Samples
Page 2 of 59
Sample Description
AP-6

Page 3 of 59
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. F Yes No
All laboratory QA/QC requirements are acceptable. �- Yes ❑ No
Report Sections Included:
d❑ Job Summary Report
❑ Sample Identification
0 Technical Validation of Data Package
❑ Analytical Laboratory Certificate of Analysis
❑ Analytical Laboratory QC Report
❑ Sub -contracted Laboratory Results
❑ Customer Specific Data Sheets, Reports, & Documentation
❑ Customer Database Entries
❑ Chain of Custody
❑ Electronic Data Deliverable (EDD) Sent Separatel
Reviewed By: Peggy Kendall Date: 10/10/2018

Certificate of Laboratory Analysis Page 4 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Site: AP-6 SamDle #: 2018028655
Collection Date: 09/11/2018 12:43 PM Matrix: GW WW
Analyte Result Units Qualifiers RDL DF Method Analysis Date/Time Analyst
ALKALINITY - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete Vendor Method V_PACE
NITRITE + NITRATE (COLORIMETRIC) - 018100141
Nitrite + Nitrate (Colorimetric) < 0.01 mg-N/L
0.01
1
EPA 353.2
10/04/2018 15:32
LSTARLI
TOTAL PHOSPHORUS (COLORIMETRIC) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
TOTAL PHOSPHORUS DISSOLVED (COLORIMETRIC) - (Analysis Performed by
Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
HEXAVALENT CHROMIUM Cr(VI) - (Analysis Performed by Pace Laboratories)
Vendor Parameter Complete
Vendor Method
V_PACE
INORGANIC IONS BY IC - 018090252
Chloride 26 mg/L
1
10
EPA 300.0
09/14/2018 17:28
BGN9034
Fluoride 1.0 mg/L
0.1
1
EPA 300.0
09/14/2018 17:28
BGN9034
Sulfate 4.7 mg/L
0.1
1
EPA 300.0
09/14/2018 17:28
BGN9034
MERCURY (COLD VAPOR) IN WATER - 018090662
Mercury (Hg) < 0.05 ug/L
0.05
1
EPA 245.1
09/27/2018 14:10
DMFRANC
Mercury Dissolved (cold vapor) in Water (Filtered) - 018090663
Mercury (Hg) < 0.05 ug/L
0.05
1
EPA 245.1
09/27/2018 13:12
DMFRANC
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED) - 018090303
Aluminum (Al) 0.073 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131
Barium (Ba) 0.312 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131
Boron (B) 4.96 mg/L
0.05
1
EPA 200.7
09/21/2018 19:19
MHH7131
Iron (Fe) 1.18 mg/L
0.01
1
EPA 200.7
09/21/2018 19:19
MHH7131
Lithium (Li) 0.689 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131
Manganese (Mn) 0.673 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131
Strontium (Sr) 1.33 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131
Zinc (Zn) < 0.005 mg/L
0.005
1
EPA 200.7
09/21/2018 19:19
MHH7131

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
Site: AP-6
Collection Date: 09/11/2018 12:43 PM
Sample #: 2018028655
Matrix: GW WW
Page 5 of 59
Analyte
Result
Units
Qualifiers RDL
DF
Method
Analysis Date/Time
Analyst
TOTAL RECOVERABLE METALS BY ICP - Q18090290
Aluminum (Al)
0.199
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Barium (Ba)
0.323
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Boron (B)
4.94
mg/L
0.05
1
EPA 200.7
09/22/2018 15:21
MHH7131
Calcium (Ca)
63.8
mg/L
M4 0.01
1
EPA 200.7
09/22/2018 15:21
MHH7131
Iron (Fe)
1.28
mg/L
0.01
1
EPA 200.7
09/22/2018 15:21
MHH7131
Lithium (Li)
0.689
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Magnesium (Mg)
18.0
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Manganese (Mn)
0.682
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Potassium (K)
14.7
mg/L
0.1
1
EPA 200.7
09/22/2018 15:21
MHH7131
Sodium (Na)
7.74
mg/L
0.05
1
EPA 200.7
09/22/2018 15:21
MHH7131
Strontium (Sr)
1.36
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
Zinc (Zn)
0.009
mg/L
0.005
1
EPA 200.7
09/22/2018 15:21
MHH7131
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
- 018090300
Antimony (Sb)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Arsenic (As)
699
ug/L
10
10
EPA 200.8
09/18/2018 20:13
CWSPEN3
Beryllium (Be)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Cadmium (Cd)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Chromium (Cr)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Cobalt (Co)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Copper (Cu)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Lead (Pb)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Molybdenum (Mo)
575
ug/L
10
10
EPA 200.8
09/18/2018 20:13
CWSPEN3
Nickel (Ni)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Selenium (Se)
< 1
ug/L
1
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Thallium (TI) Low Level
< 0.2
ug/L
0.2
1
EPA 200.8
09/18/2018 20:13
CWSPEN3
Vanadium (V) Low Level
0.827
ug/L
0.3
1
EPA 200.8
09/18/2018 20:13
CWSPEN3

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
Site: AP-6
Collection Date: 09/11/2018 12:43 PM
Analyte
Result
Units Qualifiers
RDL
TOTAL RECOVERABLE METALS BY ICP-MS - Q18090294
Antimony (Sb)
< 1
ug/L
1
Arsenic (As)
718
ug/L
10
Beryllium (Be)
< 1
ug/L
1
Cadmium (Cd)
< 1
ug/L
1
Chromium (Cr)
1.72
ug/L
1
Cobalt (Co)
< 1
ug/L
1
Copper (Cu)
2.65
ug/L
1
Lead (Pb)
< 1
ug/L
1
Molybdenum (Mo)
585
ug/L
10
Nickel (Ni)
1.68
ug/L
1
Selenium (Se)
< 1
ug/L
1
Thallium (TI) Low Level
< 0.2
ug/L
0.2
Vanadium (V) Low Level
1.28
ug/L
0.3
RADIOLOGICAL - (Analysis Performed by GEL)
Vendor Parameter
Complete
SULFIDE - (Analysis Performed by
Pace Laboratories)
Vendor Parameter
Complete
TOTAL DISSOLVED SOLIDS - Q18090211
TDS
270
mg/L
25
Total Carbon - 018090355
TOC
7.0
mg/L
0.2
TOTAL SUSPENDED SOLIDS - 018090201
TSS
9
mg/L
5
Sample #: 2018028655
Matrix: GW WW
Page 6 of 59
DF
Method
Analysis Date/Time
Analyst
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
10
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
10
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
1
EPA 200.8
09/17/2018 17:33
CWSPEN3
Vendor Method v_GEL
Vendor Method V_PACE
1 SM2540C 09/13/201814:00 Mgigant
2 SM5310C/EPA9060A 09/18/201813:20 CJEllio
1 SM2540D 09/13/2018 09:30 Mgigant
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 7 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18100141 C_NO2NO3 NITRITE + NITRATE (COLORIMETRIC)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0013
-0.0013
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
Nitrite + Nitrate
-0.0016
-0.0016
mg-N/L
1
0.01
< 1/2 RDL
(Colorimetric)
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.117
1.17
mg-N/L
10
1.21
96.9 90
110
(Colorimetric)
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.117
1.17
mg-N/L
10
1.21
96.8 90
110
(Colorimetric)
MS # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Nitrite + Nitrate
0.249
0.249
mg-N/L
1
0.25
100 90
110
(Colorimetric)
MSD # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
Nitrite + Nitrate
0.248
0.248
mg-N/L
1
0.25
99.6 90
110
0.443
(Colorimetric)

Certificate of Laboratory Analysis Page 8 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090252 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
5.01
5.01
mg/L
1
5
100 90
110
Fluoride
5
5
mg/L
1
5
100 90
110
Sulfate
5.01
5.01
mg/L
1
5
100 90
110
Parent Sample:
J18090217
-- 2018028527
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
Chloride
5.11
25.5
mg/L
5
10
105 80
120
Fluoride
1.85
1.85
mg/L
1
2
92.7 80
120
Sulfate
4.35
21.8
mg/L
5
10
91.7 80
120
Parent Sample:
J18090217
-- 2018028527
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD
Qualifier
Chloride
5.1
25.5
mg/L
5
10
105 80
120
0.363
Fluoride
1.86
1.86
mg/L
1
2
92.9 80
120
0.302
Sulfate
4.34
21.7
mg/L
5
10
90.9 80
120
0.832

Certificate of Laboratory Analysis Page 9 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090662 HG 245.1 MERCURY (COLD VAPOR) IN WATER
Blank # 1
Parameter Measured Final
Mercury (Hg) 0.001 0.001
LCS # 1
Parameter Measured Final
Mercury (Hg) 1.98 1.98
MS # 1
Parameter Measured Final
Mercury (Hg) 0.872 17.4
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.881 17.6
Units:
Dil
RDL
Relative Concentration
Qualifier
ug/L
1
0.05
< 1/2 RDL
Units:
Dil
Spike
% Recovery LCL
JCL
Qualifier
ug/L
1
2
99.1 85
115
Parent Sample:
J18080044
-- 2018024130
Units:
Dil
spike
% Recovery LCL
UCL
Qualifier
ug/L
20
20
86.7 70
130
Parent Sample:
J18080044
-- 2018024130
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
20
20
87.6 70
130
1.09

Certificate of Laboratory Analysis Page 10 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090663 HG 245.1 Dissolved Mercury Dissolved (cold vapor) in Water (Filtered)
Blank # 1
Parameter Measured Final
Mercury (Hg) -0.006 -0.006
LCS # 1
Parameter Measured Final
Mercury (Hg) 2.04 2.04
MS # 1
Parameter Measured Final
Mercury (Hg) 0.944 0.944
MSD # 1
Parameter Measured Final
Mercury (Hg) 0.937 0.937
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
102 85
115
Parent Sample:
J18090217 -- 2018028518
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
ug/L
1
1
94.3 70
130
Parent Sample:
J18090217 -- 2018028518
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
ug/L
1
1
93.6 70
130
0.745

Certificate of Laboratory Analysis Page 11 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090303 ICP_DIS_TRM TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.00185
0.00185
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000134
-0.000134
mg/L
1
0.005
< 1/2 RDL
Boron (B)
-0.000057
-0.000057
mg/L
1
0.05
< 1/2 RDL
Iron (Fe)
0.000669
0.000669
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
0.000848
0.000848
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
-0.000341
-0.000341
mg/L
1
0.005
< 1/2 RDL
Strontium (Sr)
-0.000109
-0.000109
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.00176
0.00176
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.06
5.06
mg/L
1
5
101
85
115
Barium (Ba)
4.99
4.99
mg/L
1
5
99.8
85
115
Boron (B)
5.16
5.16
mg/L
1
5
103
85
115
Iron (Fe)
5.06
5.06
mg/L
1
5
101
85
115
Lithium (Li)
4.92
4.92
mg/L
1
5
98.4
85
115
Manganese (Mn)
5.05
5.05
mg/L
1
5
101
85
115
Strontium (Sr)
4.84
4.84
mg/L
1
5
96.7
85
115
Zinc (Zn)
5.08
5.08
mg/L
1
5
102
85
115
MS # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.07
5.07
mg/L
1
5
101
70
130
Barium (Ba)
5.09
5.09
mg/L
1
5
102
70
130
Boron (B)
6.28
6.28
mg/L
1
5
101
70
130
Iron (Fe)
5.19
5.19
mg/L
1
5
103
70
130
Lithium (Li)
5.88
5.88
mg/L
1
5
115
70
130
Manganese (Mn)
5.11
5.11
mg/L
1
5
102
70
130
Strontium (Sr)
5.16
5.16
mg/L
1
5
99.9
70
130
Zinc (Zn)
5.17
5.17
mg/L
1
5
103
70
130
MSD # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (Al)
4.95
4.95
mg/L
1
5
98.6
70
130
2.52
Barium (Ba)
4.95
4.95
mg/L
1
5
98.9
70
130
2.79
Boron (B)
6.32
6.32
mg/L
1
5
102
70
130
0.588
Iron (Fe)
5.05
5.05
mg/L
1
5
101
70
130
2.64
Lithium (Li)
5.74
5.74
mg/L
1
5
112
70
130
2.34
Manganese (Mn)
4.98
4.98
mg/L
1
5
99.6
70
130
2.5
Strontium (Sr)
5.01
5.01
mg/L
1
5
96.9
70
130
2.95

Level II QC Summary
Q 18090303 ICP_DIS_TRM
Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
TOTAL RECOVERABLE METALS BY ICP (DISSOLVED)
Page 12 of 59
MSD # 1 Parent Sample: J18090217 -- 2018028514
Parameter Measured Final Units: Dil Spike % Recovery LCL UCL RPD Qualifier
Zinc (Zn) 5.04 5.04 mg/L 1 5 101 70 130 2.37

Certificate of Laboratory Analysis Page 13 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090290 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Aluminum (Al)
0.000999
0.000999
mg/L
1
0.005
< 1/2 RDL
Barium (Ba)
-0.000096
-0.000096
mg/L
1
0.005
< 1/2 RDL
Boron (B)
0.00218
0.00218
mg/L
1
0.05
< 1/2 RDL
Calcium (Ca)
0.00473
0.00473
mg/L
1
0.01
< 1/2 RDL
Iron (Fe)
0.00132
0.00132
mg/L
1
0.01
< 1/2 RDL
Lithium (Li)
-0.00001
-0.00001
mg/L
1
0.005
< 1/2 RDL
Magnesium (Mg)
0.000391
0.000391
mg/L
1
0.005
< 1/2 RDL
Manganese (Mn)
-0.000176
-0.000176
mg/L
1
0.005
< 1/2 RDL
Potassium (K)
-0.000221
-0.000221
mg/L
1
0.1
< 1/2 RDL
Sodium (Na)
0.00873
0.00873
mg/L
1
0.05
< 1/2 RDL
Strontium (Sr)
-0.000104
-0.000104
mg/L
1
0.005
< 1/2 RDL
Zinc (Zn)
0.00166
0.00166
mg/L
1
0.005
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.28
5.28
mg/L
1
5
106
85
115
Barium (Ba)
5.21
5.21
mg/L
1
5
104
85
115
Boron (B)
5.12
5.12
mg/L
1
5
102
85
115
Calcium (Ca)
5.24
5.24
mg/L
1
5
105
85
115
Iron (Fe)
5.27
5.27
mg/L
1
5
105
85
115
Lithium (Li)
4.94
4.94
mg/L
1
5
98.8
85
115
Magnesium (Mg)
5.21
5.21
mg/L
1
5
104
85
115
Manganese (Mn)
5.24
5.24
mg/L
1
5
105
85
115
Potassium (K)
5.11
5.11
mg/L
1
5
102
85
115
Sodium (Na)
5.09
5.09
mg/L
1
5
102
85
115
Strontium (Sr)
4.89
4.89
mg/L
1
5
97.8
85
115
Zinc (Zn)
5.26
5.26
mg/L
1
5
105
85
115
MS # 1
Parent Sample:
J18090217 --
2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (Al)
5.14
5.14
mg/L
1
5
102
70
130
Barium (Ba)
5.13
5.13
mg/L
1
5
102
70
130
Boron (B)
6.41
6.41
mg/L
1
5
104
70
130
Calcium (Ca)
10.6
10.6
mg/L
1
5
101
70
130
Iron (Fe)
5.18
5.18
mg/L
1
5
103
70
130
Lithium (Li)
6
6
mg/L
1
5
117
70
130
Magnesium (Mg)
16.1
16.1
mg/L
1
5
100
70
130
Manganese (Mn)
5.11
5.11
mg/L
1
5
102
70
130
Potassium (K)
2.57
51.4
mg/L
20
5
132
70
130
M4
Sodium (Na)
18.6
371
mg/L
20
5
290
70
130
M4

Certificate of Laboratory Analysis Page 14 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level II QC Summary
Q18090290 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MS # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Strontium (Sr)
5.25
5.25
mg/L
1
5
102
70
130
Zinc (Zn)
5.16
5.16
mg/L
1
5
103
70
130
MSD # 1
Parent Sample:
J18090217
-- 2018028514
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (AI)
5.11
5.11
mg/L
1
5
102
70
130
0.605
Barium (Ba)
5.1
5.1
mg/L
1
5
102
70
130
0.528
Boron (B)
6.29
6.29
mg/L
1
5
102
70
130
1.76
Calcium (Ca)
10.5
10.5
mg/L
1
5
99.2
70
130
1.03
Iron (Fe)
5.17
5.17
mg/L
1
5
103
70
130
0.386
Lithium (Li)
5.79
5.79
mg/L
1
5
113
70
130
3.68
Magnesium (Mg)
16
16
mg/L
1
5
96.7
70
130
1.16
Manganese (Mn)
5.09
5.09
mg/L
1
5
102
70
130
0.333
Potassium (K)
2.58
51.6
mg/L
20
5
136
70
130
0.388 M4
Sodium (Na)
18.6
371
mg/L
20
5
296
70
130
0.0808 M4
Strontium (Sr)
5.07
5.07
mg/L
1
5
98.1
70
130
3.49
Zinc (Zn)
5.14
5.14
mg/L
1
5
103
70
130
0.369
MS # 2
Parent Sample:
J18090240
-- 2018028655
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
Qualifier
Aluminum (AI)
5.45
5.45
mg/L
1
5
105
70
130
Barium (Ba)
5.6
5.6
mg/L
1
5
106
70
130
Boron (B)
10.2
10.2
mg/L
1
5
105
70
130
Calcium (Ca)
68.8
68.8
mg/L
1
5
100
70
130
Iron (Fe)
6.48
6.48
mg/L
1
5
104
70
130
Lithium (Li)
5.92
5.92
mg/L
1
5
105
70
130
Magnesium (Mg)
23
23
mg/L
1
5
101
70
130
Manganese (Mn)
5.95
5.95
mg/L
1
5
105
70
130
Potassium (K)
19.9
19.9
mg/L
1
5
105
70
130
Sodium (Na)
13
13
mg/L
1
5
105
70
130
Strontium (Sr)
6.39
6.39
mg/L
1
5
101
70
130
Zinc (Zn)
5.2
5.2
mg/L
1
5
104
70
130
MSD # 2
Parent Sample:
J18090240
-- 2018028655
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL
RPD Qualifier
Aluminum (AI)
5.26
5.26
mg/L
1
5
101
70
130
3.46
Barium (Ba)
5.42
5.42
mg/L
1
5
102
70
130
3.23
Boron (B)
9.91
9.91
mg/L
1
5
99.5
70
130
2.67
Calcium (Ca)
65.9
65.9
mg/L
1
5
42.2
70
130
4.31 M4
Iron (Fe)
6.36
6.36
mg/L
1
5
102
70
130
1.87

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090290 ICP_TRM TOTAL RECOVERABLE METALS BY ICP
MSD # 2
Parameter
Measured
Final
Units:
Dil
Spike
Lithium (Li)
5.8
5.8
mg/L
1
5
Magnesium (Mg)
22.1
22.1
mg/L
1
5
Manganese (Mn)
5.75
5.75
mg/L
1
5
Potassium (K)
19.2
19.2
mg/L
1
5
Sodium (Na)
12.5
12.5
mg/L
1
5
Strontium (Sr)
6.25
6.25
mg/L
1
5
Zinc (Zn)
5.04
5.04
mg/L
1
5
Page 15 of 59
Parent Sample: J18090240 -- 2018028655
% Recovery
LCL
UCL
RPD Qualifier
102
70
130
2.15
82.8
70
130
4.09
101
70
130
3.32
90.1
70
130
3.76
94.6
70
130
3.9
98
70
130
2.14
101
70
130
3.09
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 16 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090300 IMS_DIS_TRM
TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Antimony (Sb)
-0.012
-0.012
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.046
0.046
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
0.005
0.005
ug/L
1
1
< 1/2 RDL
Cadmium (Cd)
0.001
0.001
ug/L
1
1
< 1/2 RDL
Chromium (Cr)
0.075
0.075
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
-0.002
-0.002
ug/L
1
1
< 1/2 RDL
Copper (Cu)
-0.011
-0.011
ug/L
1
1
< 1/2 RDL
Lead (Pb)
-0.006
-0.006
ug/L
1
1
< 1/2 RDL
Molybdenum (Mo)
0.008
0.008
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.046
-0.046
ug/L
1
1
< 1/2 RDL
Selenium (Se)
0.029
0.029
ug/L
1
1
< 1/2 RDL
Thallium (TI) Low Level
0.028
0.028
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.067
0.067
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
48.7
48.7
ug/L
1
50
97.5
85
115
Arsenic (As)
48.5
48.5
ug/L
1
50
97.1
85
115
Beryllium (Be)
47.6
47.6
ug/L
1
50
95.2
85
115
Cadmium (Cd)
49.2
49.2
ug/L
1
50
98.5
85
115
Chromium (Cr)
49.7
49.7
ug/L
1
50
99.4
85
115
Cobalt (Co)
49.4
49.4
ug/L
1
50
98.7
85
115
Copper (Cu)
49.2
49.2
ug/L
1
50
98.4
85
115
Lead (Pb)
48.4
48.4
ug/L
1
50
96.7
85
115
Molybdenum (Mo)
49.1
49.1
ug/L
1
50
98.2
85
115
Nickel (Ni)
48.9
48.9
ug/L
1
50
97.9
85
115
Selenium (Se)
48.9
48.9
ug/L
1
50
97.8
85
115
Thallium (TI) Low Level
51.2
51.2
ug/L
1
50
102
85
115
Vanadium (V) Low Level
49.6
49.6
ug/L
1
50
99.2
85
115
NIS # 1
Parent Sample:
J18090217 -- 2018028516
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.3
50.3
ug/L
1
50
101
70
130
Arsenic (As)
50.1
50.1
ug/L
1
50
100
70
130
Beryllium (Be)
52.8
52.8
ug/L
1
50
105
70
130
Cadmium (Cd)
50.9
50.9
ug/L
1
50
102
70
130
Chromium (Cr)
51.7
51.7
ug/L
1
50
103
70
130
Cobalt (Co)
52.1
52.1
ug/L
1
50
101
70
130
Copper (Cu)
51.9
51.9
ug/L
1
50
102
70
130
Lead (Pb)
49.8
49.8
ug/L
1
50
99.5
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090300 IMS_DIS_TRM TOTAL RECOVERABLE METALS BY ICP-MS (DISSOLVED)
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
50.4
50.4
ug/L
1
50
Nickel (Ni)
50.3
50.3
ug/L
1
50
Selenium (Se)
50.1
50.1
ug/L
1
50
Thallium (TI) Low Level
52.5
52.5
ug/L
1
50
Vanadium (V) Low Level
51.6
51.6
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.3
50.3
ug/L
1
50
Arsenic (As)
49.4
49.4
ug/L
1
50
Beryllium (Be)
54.3
54.3
ug/L
1
50
Cadmium (Cd)
50.2
50.2
ug/L
1
50
Chromium (Cr)
50.8
50.8
ug/L
1
50
Cobalt (Co)
52.1
52.1
ug/L
1
50
Copper (Cu)
51.6
51.6
ug/L
1
50
Lead (Pb)
49.6
49.6
ug/L
1
50
Molybdenum (Mo)
50.4
50.4
ug/L
1
50
Nickel (Ni)
51.1
51.1
ug/L
1
50
Selenium (Se)
47.2
47.2
ug/L
1
50
Thallium (TI) Low Level
52.5
52.5
ug/L
1
50
Vanadium (V) Low Level
50.4
50.4
ug/L
1
50
Page 17 of 59
Parent Sample: J18090217 -- 2018028516
% Recovery
LCL
UCL Qualifier
101
70
130
99.5
70
130
100
70
130
105
70
130
103
70
130
Parent Sample: J18090217 -- 2018028516
% Recovery
LCL
UCL
RPD Qualifier
101
70
130
0.0258
98.7
70
130
1.4
108
70
130
2.85
100
70
130
1.31
101
70
130
1.92
101
70
130
0.0614
102
70
130
0.591
99.1
70
130
0.401
101
70
130
0.0557
101
70
130
1.64
94.3
70
130
5.85
105
70
130
0.0248
101
70
130
2.45

Certificate of Laboratory Analysis Page 18 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090294 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration Qualifier
Antimony (Sb)
-0.049
-0.049
ug/L
1
1
< 1/2 RDL
Arsenic (As)
0.036
0.036
ug/L
1
1
< 1/2 RDL
Beryllium (Be)
0.007
0.007
ug/L
1
1
< 1/2 RDL
Cadmium (Cd)
0.036
0.036
ug/L
1
1
< 1/2 RDL
Chromium (Cr)
0.216
0.216
ug/L
1
1
< 1/2 RDL
Cobalt (Co)
0.034
0.034
ug/L
1
1
< 1/2 RDL
Copper (Cu)
0.041
0.041
ug/L
1
1
< 1/2 RDL
Lead (Pb)
0.025
0.025
ug/L
1
1
< 1/2 RDL
Molybdenum (Mo)
0.038
0.038
ug/L
1
1
< 1/2 RDL
Nickel (Ni)
-0.063
-0.063
ug/L
1
1
< 1/2 RDL
Selenium (Se)
0.016
0.016
ug/L
1
1
< 1/2 RDL
Thallium (TI) Low Level
0.018
0.018
ug/L
1
0.2
< 1/2 RDL
Vanadium (V) Low Level
0.06
0.06
ug/L
1
0.3
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
50.5
50.5
ug/L
1
50
101
85
115
Arsenic (As)
51
51
ug/L
1
50
102
85
115
Beryllium (Be)
51.2
51.2
ug/L
1
50
102
85
115
Cadmium (Cd)
51.5
51.5
ug/L
1
50
103
85
115
Chromium (Cr)
51.8
51.8
ug/L
1
50
104
85
115
Cobalt (Co)
52.2
52.2
ug/L
1
50
104
85
115
Copper (Cu)
52.5
52.5
ug/L
1
50
105
85
115
Lead (Pb)
50.2
50.2
ug/L
1
50
100
85
115
Molybdenum (Mo)
51.5
51.5
ug/L
1
50
103
85
115
Nickel (Ni)
52.3
52.3
ug/L
1
50
105
85
115
Selenium (Se)
49.8
49.8
ug/L
1
50
99.5
85
115
Thallium (TI) Low Level
53.2
53.2
ug/L
1
50
106
85
115
Vanadium (V) Low Level
51.4
51.4
ug/L
1
50
103
85
115
NIS # 1
Parent Sample:
J18090217 -- 2018028515
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery
LCL
UCL Qualifier
Antimony (Sb)
49
49
ug/L
1
50
97.6
70
130
Arsenic (As)
48.4
48.4
ug/L
1
50
96.3
70
130
Beryllium (Be)
51.8
51.8
ug/L
1
50
103
70
130
Cadmium (Cd)
49.2
49.2
ug/L
1
50
98.3
70
130
Chromium (Cr)
50.2
50.2
ug/L
1
50
99.2
70
130
Cobalt (Co)
51.1
51.1
ug/L
1
50
98.6
70
130
Copper (Cu)
49.7
49.7
ug/L
1
50
98.9
70
130
Lead (Pb)
47.5
47.5
ug/L
1
50
94.9
70
130

Certificate of Laboratory Analysis Page 19 of 59
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090294 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MS # 1
Parameter
Measured
Final
Units:
Dil
Spike
Molybdenum (Mo)
55.8
55.8
ug/L
1
50
Nickel (Ni)
50.2
50.2
ug/L
1
50
Selenium (Se)
47.8
47.8
ug/L
1
50
Thallium (TI) Low Level
51.5
51.5
ug/L
1
50
Vanadium (V) Low Level
50.3
50.3
ug/L
1
50
MSD # 1
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
52.7
52.7
ug/L
1
50
Arsenic (As)
52.2
52.2
ug/L
1
50
Beryllium (Be)
55
55
ug/L
1
50
Cadmium (Cd)
53.4
53.4
ug/L
1
50
Chromium (Cr)
54.5
54.5
ug/L
1
50
Cobalt (Co)
55.5
55.5
ug/L
1
50
Copper(Cu)
54
54
ug/L
1
50
Lead (Pb)
51.5
51.5
ug/L
1
50
Molybdenum (Mo)
60.5
60.5
ug/L
1
50
Nickel (Ni)
54
54
ug/L
1
50
Selenium (Se)
49.8
49.8
ug/L
1
50
Thallium (TI) Low Level
55.7
55.7
ug/L
1
50
Vanadium (V) Low Level
54.4
54.4
ug/L
1
50
MS # 2
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
50.1
50.1
ug/L
1
50
Arsenic (As)
76.7
767
ug/L
10
50
Beryllium (Be)
48.5
48.5
ug/L
1
50
Cadmium (Cd)
49.5
49.5
ug/L
1
50
Chromium (Cr)
51.8
51.8
ug/L
1
50
Cobalt (Co)
50.2
50.2
ug/L
1
50
Copper (Cu)
55.8
55.8
ug/L
1
50
Lead (Pb)
49.4
49.4
ug/L
1
50
Molybdenum (Mo)
63.2
632
ug/L
10
50
Nickel (Ni)
50.9
50.9
ug/L
1
50
Selenium (Se)
49.3
49.3
ug/L
1
50
Thallium (TI) Low Level
48.5
48.5
ug/L
1
50
Vanadium (V) Low Level
52
52
ug/L
1
50
Parent Sample: J18090217 -- 2018028515
% Recovery
LCL
UCL Qualifier
98.5
70
130
100
70
130
95.3
70
130
103
70
130
99.8
70
130
Parent Sample: J18090217 -- 2018028515
% Recovery
LCL
UCL
RPD Qualifier
105
70
130
7.42
104
70
130
7.66
110
70
130
6.1
107
70
130
8.17
108
70
130
8.39
108
70
130
8.64
107
70
130
8.24
103
70
130
8.03
108
70
130
9.16
108
70
130
7.24
99.3
70
130
4.2
111
70
130
7.81
108
70
130
7.87
Parent Sample: J18090240 -- 2018028655
% Recovery
LCL
UCL Qualifier
99.9
70
130
99.2
70
130
97.1
70
130
98.8
70
130
100
70
130
99.5
70
130
106
70
130
98.4
70
130
95
70
130
98.5
70
130
98.1
70
130
97.1
70
130
101
70
130

Certificate of Laboratory Analysis
This report shall not be reproduced, except in full.
Order # A 8090240
Level II QC Summary
Q18090294 IMS_TRM TOTAL RECOVERABLE METALS BY ICP-MS
MSD # 2
Parameter
Measured
Final
Units:
Dil
Spike
Antimony (Sb)
48.6
48.6
ug/L
1
50
Arsenic (As)
76.1
761
ug/L
10
50
Beryllium (Be)
51.4
51.4
ug/L
1
50
Cadmium (Cd)
48.4
48.4
ug/L
1
50
Chromium (Cr)
50.6
50.6
ug/L
1
50
Cobalt (Co)
49.1
49.1
ug/L
1
50
Copper (Cu)
51.1
51.1
ug/L
1
50
Lead (Pb)
48.2
48.2
ug/L
1
50
Molybdenum (Mo)
63.2
632
ug/L
10
50
Nickel (Ni)
50.4
50.4
ug/L
1
50
Selenium (Se)
47.4
47.4
ug/L
1
50
Thallium (TI) Low Level
48.6
48.6
ug/L
1
50
Vanadium (V) Low Level
50.9
50.9
ug/L
1
50
Page 20 of 59
Parent Sample: J18090240 -- 2018028655
% Recovery
LCL
UCL
RPD Qualifier
97
70
130
2.95
85.9
70
130
14.3
103
70
130
5.81
96.6
70
130
2.31
97.8
70
130
2.48
97.3
70
130
2.28
96.8
70
130
9.4
96
70
130
2.48
94.8
70
130
0.19
97.4
70
130
1.11
94.4
70
130
3.82
97.2
70
130
0.0988
99.2
70
130
2.17

Certificate of Laboratory Analysis Page 21 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090211 TDS TOTAL DISSOLVED SOLIDS
Blank # 1
Parameter Measured Final
TDS 0 0
Blank # 2
Parameter Measured Final
TDS 0 0
Duplicate # 1
Parameter Measured Final
TDS 332 332
Duplicate # 2
Parameter Measured Final
TDS 22 22
Duplicate # 3
Parameter Measured Final
TDS 30 30
Duplicate # 4
Parameter Measured Final
TDS 23 23
LCS # 1
Parameter Measured Final
TDS 101 101
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:
J18080083 -- 2018024370
Units:
Dil
RPD Qualifier
mg/L
1
0.601
Parent Sample:
J18080083 -- 2018024371
Units:
Dil
RPD Qualifier
mg/L
1
0
Parent Sample:
J18080083 -- 2018024372
Units:
Dil
RPD Qualifier
mg/L
1
6.9
Parent Sample:
J18080083 -- 2018024373
Units:
Dil
RPD Qualifier
mg/L
1
0
Units:
Dil
Spike
% Recovery LCL
UCL Qualifier
mg/L
1
100
101 90
110

Certificate of Laboratory Analysis Page 22 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090355
Total Carbon
Total Carbon
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0
mg/L
1
0.1
< 1/2 RDL
Blank # 2
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TOC
0.001
mg/L
1
0.1
< 1/2 RDL
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.38
mg/L
1
2.375
100 85
115
LCS # 2
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
2.37
mg/L
1
2.375
99.9 85
115
MS # 1
Parent Sample:
J18080727 -- 2018027481
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TOC
4.01
mg/L
1
2
99.5 80
120
MSD # 1
Parent Sample:
J18080727 -- 2018027481
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
RPD Qualifier
TOC
4.07
mg/L
1
2
102 80
120
2.77

Certificate of Laboratory Analysis Page 23 of 59
This report shall not be reproduced, except in full.
Order # J18090240
Level 11 QC Summary
Q18090201 TSS TOTAL SUSPENDED SOLIDS
Blank # 1
Parameter
Measured
Final
Units:
Dil
RDL
Relative Concentration
Qualifier
TSS
0
0
mg/L
1
5
< 1/2 RDL
Duplicate # 1
Parent Sample:
J18080036 -- 2018024092
Parameter
Measured
Final
Units:
Dil
RPD
Qualifier
TSS
1.2
1.2
mg/L
1
0
Duplicate # 2
Parent Sample:
J18090265 -- 2018028769
Parameter
Measured
Final
Units:
Dil
RPD
Qualifier
TSS
37.8
37.8
mg/L
1
0.531
LCS # 1
Parameter
Measured
Final
Units:
Dil
Spike
% Recovery LCL
UCL
Qualifier
TSS
53.2
53.2
mg/L
1
50
106 90
110

aceAnalytical
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September 18, 2018
Program Manager
Duke Energy
13339 Hagers Ferry Road
Bldg.7405 MG30A2
Huntersville, NC 28078
RE: Project: J 18090240
Pace Project No.: 92399278
Dear Program Manager:
Enclosed are the analytical results for sample(s) received by the laboratory on September 12, 2018.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
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
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Project: J18090240
Pace Project No.: 92399278
Asheville Certification IDs
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
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Project: J18090240
Pace Project No.: 92399278
Lab ID Sample ID
SAMPLE SUMMARY
Matrix Date Collected Date Received
92399278001 2018028655 Water 09/11/1812:43 09/12/1815:05
REPORT OF LABORATORY ANALYSIS
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SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
J18090240
92399278
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92399278001
2018028655
SM 2320B-2011
ECH
3
PASI-A
SM 4500-S2D-2011
GC
1
PASI-A
EPA 218.7 Rev 1.0 2011
CDC
1
PASI-A
EPA 365.1 Rev 2.0 1993
MFO
1
PASI-A
EPA365.1
MFO
1
PASI-A
REPORT OF LABORATORY ANALYSIS
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SUMMARY OF DETECTION
Project:
Pace Project No.:
J18090240
92399278
Lab Sample ID
Client Sample ID
Method
Parameters
Result
Units
Report Limit
Analyzed Qualifiers
92399278001
2018028655
SM 2320B-2011
Alkalinity, Bicarbonate (CaCO3)
225
mg/L
5.0
09/14/18 01:50
SM 2320B-2011
Alkalinity, Total as CaCO3
225
mg/L
5.0
09/14/18 01:50
EPA 365.1 Rev 2.0 1993 Phosphorus
0.14
mg/L
0.050
09/15/18 02:02
EPA 365.1
Phosphorus, Dissolved
0.14
mg/L
0.050
09/15/18 03:10
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090240
Pace Project No.: 92399278
Method: SM 2320B-2011
Description: 2320B Alkalinity
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for SM 232013-2011. All samples were received in acceptable condition with any exceptions noted below or on
the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090240
Pace Project No.: 92399278
Method: SM 4500-S2D-2011
Description: 4500S2D Sulfide Water
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for SM 4500-S2D-2011. All samples were received in acceptable condition with any exceptions noted below or
on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 430975
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92398950005,92399469002
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2377243)
• Sulfide
• MSD (Lab ID: 2377244)
• Sulfide
R1: RPD value was outside control limits.
• MSD (Lab ID: 2377244)
• Sulfide
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090240
Pace Project No.: 92399278
Method: EPA 218.7 Rev 1.0 2011
Description: 218.7 Chromium, Hexavalent
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 218.7 Rev 1.0 2011. All samples were received in acceptable condition with any exceptions noted
below or on the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 430521
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92399278001,92399289009
M1: Matrix spike recovery exceeded QC limits.
• MS (Lab ID: 2375279)
• Chromium, Hexavalent
• MS (Lab ID: 2375281)
• Chromium, Hexavalent
• MSD (Lab ID: 2375282)
• Chromium, Hexavalent
Additional Comments:
Batch accepted based on laboratory control sample (LCS) recovery.
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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PROJECT NARRATIVE
Project: J18090240
Pace Project No.: 92399278
Method: EPA 365.1 Rev 2.0 1993
Description: 365.1 Phosphorus, Total
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 365.1 Rev 2.0 1993. 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 365.1 Rev 2.0 1993 with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
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PROJECT NARRATIVE
Project: J18090240
Pace Project No.: 92399278
Method: EPA 365.1
Description: 365.1 Phosphorus, Total, Diss.
Client: Duke Energy
Date: September 18, 2018
General Information:
1 sample was analyzed for EPA 365.1. 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 365.1 Rev 2.0 1993 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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ANALYTICAL RESULTS
Project: J18090240
Pace Project No.: 92399278
Sample: 2018028655 Lab ID: 92399278001 Collected: 09/11/18 12:43 Received: 09/12/18 15:05 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
2320B Alkalinity
Alkalinity, Bicarbonate (CaCO3)
Alkalinity, Carbonate (CaCO3)
Alkalinity, Total as CaCO3
4500S21) Sulfide Water
Sulfide
218.7 Chromium, Hexavalent
Chromium, Hexavalent
365.1 Phosphorus, Total
Phosphorus
365.1 Phosphorus, Total, Diss
Phosphorus, Dissolved
Date: 09/18/2018 01:48 PM
Analytical Method: SM 2320B-2011
225 mg/L 5.0
1
09/14/18 01:50
ND mg/L 5.0
1
09/14/18 01:50
225 mg/L 5.0
1
09/14/18 01:50
Analytical Method: SM 4500-S2D-2011
ND mg/L 0.10
1
09/17/18 20:25
18496-25-8
Analytical Method: EPA 218.7 Rev 1.0 2011
ND ug/L 0.025
1
09/13/1811:07
18540-29-9 M1
Analytical Method: EPA 365.1 Rev 2.0 1993 Preparation Method: EPA 365.1 Rev 2.0 1993
0.14 mg/L 0.050
1
09/14/18 22:30 09/15/18 02:02
7723-14-0
Analytical Method: EPA 365.1 Preparation Method: EPA
365.1 Rev 2.0 1993
0.14 mg/L 0.050
1
09/14/18 22:30 09/15/18 03:10
7723-14-0
REPORT OF LABORATORY ANALYSIS
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QUALITY CONTROL DATA
Project: J18090240
Pace Project No.: 92399278
QC Batch: 430543 Analysis Method: SM 2320B-2011
QC Batch Method: SM 2320B-2011 Analysis Description: 2320E Alkalinity
Associated Lab Samples: 92399278001
METHOD BLANK: 2375345
Associated Lab Samples: 92399278001
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Alkalinity, Bicarbonate (CaCO3) mg/L
Alkalinity, Carbonate (CaCO3) mg/L
LABORATORY CONTROL SAMPLE: 2375346
Parameter Units
Alkalinity, Total as CaCO3 mg/L
Matrix: Water
Blank Reporting
Result Limit Analyzed Qualifiers
ND 5.0 09/13/1814:55
ND 5.0 09/13/1814:55
ND 5.0 09/13/1814:55
Spike LCS LCS % Rec
Conc. Result % Rec Limits Qualifiers
50 52.6 105 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2375347 2375348
MS MSD
92398864038 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L 71.7 50 50 115 116 86 88 80-120 1 25
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2375349 2375350
MS MSD
92399289004 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Alkalinity, Total as CaCO3 mg/L ND 50 50 49.6 49.4 99 99 80-120 0 25
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: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090240
Pace Project No.: 92399278
QC Batch: 430975
Analysis Method: SM 4500-S2D-2011
QC Batch Method: SM 4500-S2D-2011
Analysis Description: 4500S2D Sulfide Water
Associated Lab Samples: 92399278001
METHOD BLANK: 2377239
Matrix: Water
Associated Lab Samples: 92399278001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Sulfide mg/L
ND 0.10
09/17/18 20:11
LABORATORY CONTROL SAMPLE: 2377240
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Sulfide mg/L
.5 0.52
105 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2377241 2377242
MS MSD
92399469002
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
.5 .5 0.55
0.53 110 107 80-120 3 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2377243 2377244
MS MSD
92398950005 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 .5 .5 0.13 0.11 26 22 80-120 18 10 M1,R1
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: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090240
Pace Project No.: 92399278
QC Batch: 430521 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
Associated Lab Samples: 92399278001
METHOD BLANK: 2375277 Matrix: Water
Associated Lab Samples: 92399278001
Blank Reporting
Parameter Units Result Limit Analyzed Qualifiers
Chromium, Hexavalent ug/L ND 0.025 09/13/18 10:37
LABORATORY CONTROL SAMPLE: 2375278
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Chromium, Hexavalent ug/L .1 0.099 99 85-115
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2375279 2375280
MS MSD
92399278001 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Chromium, Hexavalent ug/L ND .1 .1 0.089 0.095 89 95 90-110 7 10 M1
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2375281 2375282
MS MSD
92399289009 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 0.40 .1 .1 0.46 0.42 55 10 90-110 10 10 M1
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: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC.
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QUALITY CONTROL DATA
Project: J18090240
Pace Project No.: 92399278
QC Batch: 430835
Analysis Method: EPA 365.1 Rev 2.0 1993
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Total
Associated Lab Samples: 92399278001
METHOD BLANK: 2376827
Matrix: Water
Associated Lab Samples: 92399278001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus mg/L
ND 0.050
09/15/18 02:01
LABORATORY CONTROL SAMPLE: 2376828
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus mg/L
2.5 2.5
101 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2376829 2376830
MS MSD
92399278001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L 0.14
2.5 2.5 2.8
2.8 105 107 90-110 2 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2376831 2376832
MS MSD
92399289009 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus mg/L ND 2.5 2.5 2.5 2.6 101 102 90-110 1 10
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC.
Page 15 of 20

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8� 6fele. Suite 100
�J Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: J18090240
Pace Project No.: 92399278
QC Batch: 430840
Analysis Method: EPA 365.1
QC Batch Method: EPA 365.1 Rev 2.0 1993
Analysis Description: 365.1 Phosphorus, Dissolved
Associated Lab Samples: 92399278001
METHOD BLANK: 2376852
Matrix: Water
Associated Lab Samples: 92399278001
Blank Reporting
Parameter Units
Result Limit
Analyzed Qualifiers
Phosphorus, Dissolved mg/L
ND 0.050
09/15/18 03:07
LABORATORY CONTROL SAMPLE: 2376853
Spike LCS
LCS % Rec
Parameter Units
Conc. Result
% Rec Limits Qualifiers
Phosphorus, Dissolved mg/L
2.5 2.6
103 90-110
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2376854 2376855
MS MSD
92399278001
Spike Spike MS
MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result
Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L 0.14
2.5 2.5 2.7
2.8 104 105 90-110 1 10
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2376856 2376857
MS MSD
92399289009 Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Phosphorus, Dissolved mg/L ND 2.5 2.5 2.5 2.5 100 100 90-110 0 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: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC.
Page 16 of 20

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
0gO w6,6fele. Suite 100
�J Huntersville, NC 28078
[phone]
QUALIFIERS
Project: J18090240
Pace Project No.: 92399278
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.
LABORATORIES
PASI-A Pace Analytical Services - Asheville
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
R1 RPD value was outside control limits.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/18/2018 01:48 PM without the written consent of Pace Analytical Services, LLC. Page 17 of 20

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
og8�win�c6rele. Suite 100
��JJ Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: J18090240
Pace Project No.: 92399278
Lab ID
Sample ID
QC Batch Method
QC Batch
92399278001
2018028655
SM 2320B-2011
430543
92399278001
2018028655
SM 4500-S2D-2011
430975
92399278001
2018028655
EPA 218.7 Rev1.0 2011
430521
92399278001
2018028655
EPA 365.1 Rev 2.0 1993
430835
92399278001
2018028655
EPA 365.1 Rev 2.0 1993
430840
Date: 09/18/2018 01:48 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Analytical Method
Analytical
Batch
EPA 365.1 Rev 2.0 1993 430866
EPA 365.1 430869
Page 18 of 20

Analytical'
Laboratory receiving samples:
Asheville ❑ Eden❑
Document Name: Document Revised: February 7, 2018
Sample Condition Upon Recel t(SCUR) Page 1 of 2
Document No.: Issuing Authority:
F-CAR-CS-033-Rev.06 Pace Carolinas Quality Office
Greenwood ❑ Huntersville [ Raleigh❑ Mechanicsville❑
ConditionSample Client Name: VJ 9239927�
Upon Receipt
Project #:
Courier. []Fed Ex ❑UPS ❑USPS ❑Client
❑ Commercial [ace ❑Other: 92399278
Custody Seal Present? ❑Yes L3t`14 Seals Intact? ❑Yes EfNo
Date/Initials Person Examining Contents: '(1
Packing Material: []Bubble Wrap ❑Bubble Bags done ❑ Other Biological Tissue F ozen?
Thermometer: IR ❑Yes ❑No N/A
Gun ID:
92T045 type of Ice: .�et []Blue [:]None
Cooler Temp {°Cj: Correction Factor: Add/Subtract (°Cj_
Temp should be above freezing to 6°C
Cooler Temp Corrected (°C):� ❑Samples out of temp criteria. Samples on ice, cooling process
has begun
USDA Regulated Soll ([2 N/A , water sample)
Did samples origin to in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source linter onally,
[]Yes Na including Hawaii and Puerto Ricol? []Yes ONo
Comments/ialscrepancy:
Chain of Custody Present?
]{—,Yes
❑No
❑N/A
1.
Samples Arrived within Hold Time?
05es
[:]No
❑N/A
Z.
Short Hold Time Analysis 1<72 hr.)?
❑Yes
Milo
❑N/A
3,
Rush Turn Around Time Requested?
[]Yes
26o
❑N/A
4.
Sufficient Volume?
Mes
[:]No
❑N/A
S.
Correct Containers Used?
ErYes
❑No
❑N/A
6.
-Pace Containers Used?
❑Yes
❑No
❑N/A
Containers Intact?
121Y'es
[]No
❑N/
7.
Dissolved analysis: Samples Field Faltered?
❑Yes
❑No
NIA
B.
Sample Labels Match COC?
es
[]No
[]N/A
9.
-Includes Datejfime/ID/Analysis Matrix:
Headspace in VOA Vials (>5-6mm)7
Trip Blank Present?
Trio Blank Custody Seals Present?
COMMENTS/SAMPLE DISCREPANCY
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Project Manager SCURF Review:
Project Manager SRF Review:
[]Yes []No ON 10.
❑Yes ❑No N�/A 11.
nYes ❑No 1JA
Date/Time:
Lot ID of split containers:
Date:
Date:
Field Data Required? ❑yes ❑No
Page 42 of 59
Page 19 of 20

Page 43 of 59
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by 1GP (TRM): Al. Ba, B. Ca, Fe, U. Mg, Mn, K, Na, Sr, Zn Hg by 245.1 Dissolved metals : All o
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® Laboratories LLc
a member of The GEL Group ivv;
October 08, 2018
Anne Pridgeon
Duke Energy Central Lab
13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Re: Ash Basin Pump Test
Work Order: 459317
SDG: J18090240
Dear Anne Pridgeon:
PO Box 30712 Charleston_ SC 29417
2040 Savage Road Chad "on. 8C 2N07
P 843.556.8171
F 843.766.1178
GEL Laboratories, LLC (GEL) appreciates the opportunity to provide the enclosed analytical results for the
sample(s) we received on September 17, 2018. This original data report has been prepared and reviewed in
accordance with GEL's standard operating procedures.
Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs
on time every time. We trust that you will find everything in order and to your satisfaction. If you have any
questions, please do not hesitate to call me at [phone], ext. 4705.
Sincerely,/
V
am
Katherine Cates
Project Manager
Purchase Order: 5640332
Enclosures
gel. com

Page 45 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis Report
for
DUP0007 Duke Energy Carolinas, LLC (PO 5640332)
Client SDG: J18090240 GEL Work Order: 459317
The Qualifiers in this report are defined as follows:
* A quality control analyte recovery is outside of specified acceptance criteria
** Analyte is a Tracer compound
** Analyte is a surrogate compound
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the Certificate of Analysis.
The designation ND, if present, appears in the result column when the analyte concentration is not detected above
the limit as defined in the 'U' qualifier above.
This data report has been prepared and reviewed in accordance with GEL Laboratories LLC
standard operating procedures. Please direct any questions to your Project Manager, Katherine Cates.
Reviewed by
Page 2 of 15

GEL LABORATORIES LLC Page 46of59
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analvsis
Report Date: October 8, 2018
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID: 2018028655
Project: DUKE00702
Sample ID: 459317001
Client ID: DUP0007
Matrix: Water
Collect Date: 11-SEP-18 12:43
Receive Date: 17-SEP-18
Collector: Client
Parameter Qualifier Result Uncertainty MDC RL
Units PF DF Analyst Date Time Batch Method
Rad Gas Flow Proportional Counting
GFPC, Ra228, Liquid "As Received"
Radium-228 U 0.347 +/-0.316 0.513 1.00
pCi/L JXC9 09/26/18 1123 1802597 1
Rad Radium-226
Lucas Cell, Ra226, liquid "As Received"
Radium-226 U 0.161 +/-0.458 0.866 1.00
pCi/L PCW 09/28/18 0815 1802182 2
The following Analytical Methods were performed:
Method Description
Analyst Comments
1 EPA 904.0/SW846 9320 Modified
2 EPA 903.1 Modified
Surrogate/Tracer Recovery Test
Result Nominal Recovery% Acceptable Limits
Barium-133 Tracer GFPC, Ra228, Liquid "As Received"
81.5 (15%-125%)
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 3 of 15

GEL LABORATORIES LLC Page 47of59
2040 Savage Road Charleston SC 29407 - [phone] - www.gel.com
Certificate of Analysis
Company: Duke Energy Central Lab
Address : 13339 Hagers Ferry Road
Huntersville, North Carolina 28078
Contact: Anne Pridgeon
Project: Ash Basin Pump Test
Client Sample ID:
Sample ID:
Matrix:
Collect Date:
Receive Date:
Collector:
2018028655
459317001
Water
11-SEP-18 12:43
17-SEP-18
Client
Report Date: October 8, 2018
Project: DUKE00702
Client ID: DUP0007
Parameter Qualifier Result DL RL Units PF DF Analyst Date Time Batch Method
Metals Analysis-ICP-MS
Calculation for Total U "See Parent Products"
Total Uranium 0.00353 0.000067 0.0002 ug/ml BAJ 09/27/18 1407 1806676 1
The following Prep Methods were performed:
Method Description Analyst Date Time Prep Batch
SW846 3010A SW 846 3010 Acid Digestion
The following Analytical Methods were performed:
JXM8 09/18/18 1254 1802516
Method Description Analyst Comments
1 SW846 6020
Notes:
Column headers are defined as follows:
DF: Dilution Factor Lc/LC: Critical Level
DL: Detection Limit PF: Prep Factor
MDA: Minimum Detectable Activity RL: Reporting Limit
MDC: Minimum Detectable Concentration SQL: Sample Quantitation Limit
Page 4 of 15

Page 48 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: October 8, 2018
Duke Energy Central Lab Page 1 of 2
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459317
Parmname
NOM
Sample
Qual
QC
Units
RPD%
REC%
Range Anlst
Date Time
Rad Gas Flow
Batch 1802597
QC1204113995
459307008 DUP
Radium-228
U
0.279
U
0.208
pCi/L
N/A
N/A JXC9
09/26/1811:24
Uncertainty
+/-0.323
+/-0.235
QC1204113996
LCS
Radium-228
5.77
4.42
pCi/L
76.6
(75%-125%)
09/26/1812:40
Uncertainty
+/-0.667
QC1204113994
MB
Radium-228
U
0.132
pCi/L
09/26/1811:24
Uncertainty
+/-0.270
Rad Ra-226
Batch 1802182
QC1204113023
459311011 DUP
Radium-226
U
0.039
U
0.115
pCi/L
N/A
N/A PCW
09/28/18 08:45
Uncertainty
+/-0.254
+/-0.291
QC1204113025
LCS
Radium-226
26.0
28.3
pCi/L
109
(75%-125%)
09/28/18 08:45
Uncertainty
+/-2.30
QC1204113022
MB
Radium-226
U
0.137
pCi/L
09/28/18 08:45
Uncertainty
+/-0.237
QC1204113024
459311011 MS
Radium-226
130 U
0.039
118
pCi/L
90.9
(75%-125%)
09/28/18 08:45
Uncertainty
+/-0.254
+/-9.34
QC1204118722
459311011 MSD
Radium-226
130 U
0.039
112
pCi/L
4.96
86.5
(0%-20%)
09/28/18 08:45
Uncertainty
+/-0.254
+/-9.24
Notes:
Counting Uncertainty is calculated at the 95% confidence level (1.96-sigma).
The Qualifiers in this report are defined as follows:
** Analyte is a Tracer compound
< Result is less than value reported
> Result is greater than value reported
Page 5 of 15

Page 49 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459317
Page 2 of 2
Parmname NOM Sample Oual OC Units RPD% REC% Rance Anlst Date Time
BD Results are either below the MDC or tracer recovery is low
FA Failed analysis.
H Analytical holding time was exceeded
J Value is estimated
K Analyte present. Reported value may be biased high. Actual value is expected to be lower.
L Analyte present. Reported value may be biased low. Actual value is expected to be higher.
M M if above MDC and less than LLD
M REMP Result > MDC/CL and < RDL
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
UI Gamma Spectroscopy --Uncertain identification
UJ Gamma Spectroscopy --Uncertain identification
UL Not considered detected. The associated number is the reported concentration, which may be inaccurate due to a low bias.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
^ The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 6 of 15

Page 50 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Report Date: October 8, 2018
Duke Energy Central Lab Page 1 of 3
13339 Hagers Ferry Road
Huntersville, North Carolina
Contact: Anne Pridgeon
Workorder: 459317
Parmname
NOM Sample
Qual
QC
Units
RPD/D%
REC% Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1802517
QC1204113820 459313001 DUP
Uranium-233
U ND
U
ND
ug/mL
N/A
SKJ
09/24/1815:13
Uranium-234
U ND
U
ND
ug/mL
N/A
Uranium-236
U ND
U
ND
ug/mL
N/A
Uranium-238
0.00205
0.00264
ug/mL
25.1 *
(0%-20%)
09/21/18 07:52
QC1204113819 LCS
Uranium-238
0.0496
0.0487
ug/mL
98.1 (80%-120%)
09/21/18 07:46
QC1204113823 LCS
Uranium-233
Uranium-234
Uranium-236
QC1204113818 MB
Uranium-233
Uranium-234
Uranium-236
Uranium-238
0.0005
0.000505
ug/mL 101 (80%-120%) 09/24/1815:10
0.00055
0.000561
u9/mL 102 (80%-120%)
0.005
0.00539
u9/mL 108 (80%-120%)
U
ND
ug/mL 09/24/1815:09
U
ND
ug/mL
U
ND
ug/mL
U
ND
ug/mL 09/21/18 07:45
Page 7 of 15

Page 51 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459317
Page 2 of 3
Parmname
NOM
Sample
Qual
QC
Units
RPD/D%
REC%
Range Anlst
Date Time
Metals Analysis - ICPMS
Batch 1802517
QC1204113821 459313001 MS
Uranium-238
0.0496
0.00205
0.0551
ug/mL
107
(75%-125%) SKJ
09/21/18 07:53
QC1204113824 459313001 MS
Uranium-233
0.0005
U
ND
0.000507
ug/mL
101
(75%-125%)
09/24/1815:15
Uranium-234
0.00055
U
ND
0.000578
ug/mL
105
(75%-125%)
Uranium-236
0.005
U
ND
0.00552
ug/mL
110
(75%-125%)
QC1204113822 459313001 SDILT
Uranium-233
U
ND
U
ND
ug/L
N/A
(0%-10%)
09/24/1815:16
Uranium-234
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-236
U
ND
U
ND
ug/L
N/A
(0%-10%)
Uranium-238
2.05
0.401
ug/L
2.24
(0%-10%)
09/21/18 07:55
Notes:
The Qualifiers in this report are defined as follows:
< Result is less than value reported
> Result is greater than value reported
E %difference of sample and SD is >10%. Sample concentration must meet flagging criteria
FB Mercury was found present at quantifiable concentrations in field blanks received with these samples. Data associated with the blank are deemed
invalid for reporting to regulatory agencies
H Analytical holding time was exceeded
J Value is estimated
N Metals --The Matrix spike sample recovery is not within specified control limits
N/A RPD or %Recovery limits do not apply.
N1 See case narrative
ND Analyte concentration is not detected above the detection limit
NJ Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Q One or more quality control criteria have not been met. Refer to the applicable narrative or DER.
Page 8 of 15

Page 52 of 59
GEL LABORATORIES LLC
2040 Savage Road Charleston, SC 29407 - [phone] - www.gel.com
QC Summary
Workorder: 459317 Page 3 of 3
Parmname NOM Sample Qual QC Units RPD/D% REC% Range Anlst Date Time
R Sample results are rejected
U Analyte was analyzed for, but not detected above the MDL, MDA, MDC or LOD.
X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier
Y Other specific qualifiers were required to properly define the results. Consult case narrative.
^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL. Qualifier Not Applicable for Radiochemistry.
h Preparation or preservation holding time was exceeded
N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more or %RPD not applicable.
The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptance criteria when the sample is greater than
five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the
RL is used to evaluate the DUP result.
* Indicates that a Quality Control parameter was not within specifications.
For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless qualified on the QC Summary.
Page 9 of 15

--------
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Duke nergy Analytical Laboratory
Pa ge 1 of 53 of 59
i Duke Energy
r
11.0 Code MG03A2 (BWtdlrnV 74G5Birder 'Mitrix: GW WW
NC_ SQ_
_Eqt�qe
i DISTRIBUTION
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i Analytical Laboratory
13339 Haq— Ferry Rd
na,7
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1 ORIGINAL to LAB, COPY to CLIENT
ty 8,
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1
[phone]�4""" —ftle, N. C. 28078 L_R�7
Fax:!
Date _
AMPLE PROGRAM
S NPDES
X
Sample Log
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Ground Wa ter
Drinking Water UST
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Project Name: IMP Assessment Water
Phone No:
Client: AB GW
R.sP. c.ma, T.:
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Sample Description or ID
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300
250
250
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500
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PET
PET
PET
PET
PET
PET
PET
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c—nia ELEMENTS,-Ky'ICP MS (TRMf. Stf, As, Be, Cd, Cr, Co, Cu, Pb, Se, TI (LL), V (I-L) ELEMENTS
by ICP (TRM): At, Ba, B, Ca, Fe, Li, Mg, Mn, K, Na, Sr, Zn Hg by 245.1 Dissolved metals: All
metals ICP, IMS, Hg (Excluding Ca, Mg, K, Na)
Add, Cost Will Apply
'8'urnkj—n.1ysi5 Sun- Wells Onty'

LaboraiorieS LG
Client: U
Received Bv: ZKW
Carrier and Tracking Number
=d Hazard Information
as a DOT Hazardous?
nples marked or classified as
s package, COC, and/or Samples marked HAZ?
Sample Receipt Criteria
1 Shipping containers received intact and
sealed?
2 Chain of custody documents included
3 1Samples requiring cold preservation
within (0 < 6 deg. C)?*
4 Daily check performed and passed on IR
temperature gun?
5 Sample containers intact and sealed?
6 Samples requiring chemical preservation
at proper pH?
7 1Do any samples require Volatile
SAMPLE RECEII
tAR/COC(Work order. t
Receive
FedEx Express
C
o *If Net Counts > 100cpm on samf
investigation.
Tazard Class Shipped:
Maximum Net Counts Observed*
Classified as: Rod 1 Rad 2
yes, select Hazards below, and c
�B's Flammable Foreign
Comme
m
o
Page 54 of 59
7 & REVIEW FORM
I,
Cock Applicable.
FedEx Ground UPS Field Servi
I s tiurie Other
p �
{
es not marked "radioactive", contact the R
iiiation Safety Group for further
UN#:
Observed Counts - Area Background Counts):
PM mRmr
tad 3
n• o o
Circle Applicable: Seals broken Damaged container Leaking container Other
,ng Items)
(describe)
Preservation Method: et lc Ice Packs Dry ice one Other.
*all temperatures are recorded in Celsius
TEMP:
Temperature Device Serial #: IR3-9 E
j
Secondary'rempentunro Ihvkc Serial H (If Applicable):
!..
I
Circle Applicable: Scals broken Damaged container Leaking container Other
(describe)
I:
Sample ID's and Containers Affected:
Ij
If Yes, Are Encores or Soil Kits present? Yes_ No (Myles,
Do VOA vials contain acid preservation? Yes._ No N/A_
VOA vials free of headspace? Yes_ Nq-L N/A �'i',
Sample ID's and containers affected:
take to VOA Freezer)
(If unknown, select No)
8 Samples received within holding time9 s and tests affected:
9 Sample ID's on COC match ID's on Sample ID's and containers affected:
bottles?
I'
10 Date & time on COC match date & time Sample ID's affected:
on bottles?
it dumber of containers received match Sample ID's affected:
number indicated on COC?
12 Are sample containers identifiable as j
GELprovided?
13 COC form is properly signed in
relinquished/received sections? �
;ornments (Use Cof(
nt��inuation Form if needed):
lqof
oova e C�n�f � K)✓ on[ 1
- v%Je- V- I �2- ifs °��' (-2 r 201
PM (or PMA) review: Initials
Date Page of�(''
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l GL-CHI-SR-001 Rev 5
Page 11 of 15

Page 55 of 59
Technical Case Narrative
Duke Energy Carolinas, LLC (DUPC)
SDG #: J18090240
Work Order #: 459317
Metals
Product: Determination of Metals by ICP-MS
Analytical Method: SW846 3010A/6020A
Analytical Procedure: GL-MA-E-014 REV# 33
Analytical Batch: 1802517
Preparation Method: SW846 3010A
Preparation Procedure: GL-MA-E-008 REV# 19
Preparation Batch: 1802516
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID#
Client Sample Identification
459317001
2018028655
1204113818
Method Blank (MB)ICP-MS
1204113819
Laboratory Control Sample (LCS)
1204113823
Laboratory Control Sample (LCS)
1204113822
459313001(2018028461L) Serial Dilution (SD)
1204113820
459313001(2018028461D) Sample Duplicate (DUP)
1204113821
459313001(2018028461 S) Matrix Spike (MS)
1204113824
459313001(2018028461 S) Matrix Spike (MS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary:
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Calibration Information
ICSA/ICSAB Statement
For the ICP-MS analysis, the ICSA solution contains analyte concentrations which are verified trace impurities
indigenous to the purchased standard.
Quality Control (QC) Information
Duplicate Relative Percent Difference (RPD) Statement
The RPD obtained from the designated sample duplicate (DUP) is evaluated based on acceptance criteria of 20%
when the sample is >5X the contract required reporting limit (RL). In cases where either the sample or duplicate
value is less than 5X the RL, a control of +/-RL is used to evaluate the DUP results. Not all the applicable
analyte RPD values were within the acceptance criteria.
Sample
Analyte
Value
1204113820 (2018028461DUP)
Uranium-238
25.1* (0%-20%)
Page 12 of 15

Page 56 of 59
Radiochemistr
Product: GFPC, Ra228, Liquid
Analytical Method: EPA 904.0/SW846 9320 Modified
Analytical Procedure: GL-RAD-A-063 REV# 2
Analytical Batch: 1802597
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459317001 2018028655
1204113994 Method Blank (MB)
1204113995 459307008(NonSDG) Sample Duplicate (DUP)
1204113996 Laboratory Control Sample (LCS)
The samples in this SDG were analyzed on an "as received" basis.
Data Summary•
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Technical Information
Recounts
Sample 1204113996 (LCS) was recounted due to low recovery. The recount is reported.
Product: Lucas Cell, Ra226, liquid
Analytical Method: EPA 903.1 Modified
Analytical Procedure: GL-RAD-A-008 REV# 15
Analytical Batch: 1802182
The following samples were analyzed using the above methods and analytical procedure(s).
GEL Sample ID# Client Sample Identification
459317001 2018028655
1204113022 Method Blank (MB)
1204113023 459311011(NonSDG) Sample Duplicate (DUP)
1204113024 459311011(NonSDG) Matrix Spike (MS)
1204113025 Laboratory Control Sample (LCS)
1204118722 459311011(NonSDG) Matrix Spike Duplicate (MSD)
The samples in this SDG were analyzed on an "as received" basis.
Page 13 of 15

Page 57 of 59
Data Summary
All sample data provided in this report met the acceptance criteria specified in the analytical methods and
procedures for initial calibration, continuing calibration, instrument controls and process controls where
applicable, with the following exceptions.
Miscellaneous Information
Additional Comments
The matrix spike and matrix spike duplicate, 1204113024 (Non SDG 459311011MS) and 1204118722 (Non
SDG 459311011MSD), aliquots were reduced to conserve sample volume.
Certification Statement
Where the analytical method has been performed under NELAP certification, the analysis has met all of the
requirements of the NELAC standard unless otherwise noted in the analytical case narrative.
Page 14 of 15

Page 58 of 59
List of current GEL Certifications as of 08 October 2018
State
Certification
Alaska
17-018
Arkansas
88-0651
CLIA
42DO904046
California
2940
Colorado
SC00012
Connecticut
PH-0169
DoD ELAP/ ISO17025 A2LA
2567.01
Florida NELAP
E87156
Foreign Soils Permit
P330-15-00283, P330-15-00253
Georgia
SC00012
Georgia SDWA
967
Hawaii
SC00012
Idaho Chemistry
SC00012
Idaho Radiochemistry
SC00012
Illinois NELAP
200029
Indiana
C—SC-01
Kansas NELAP
E-10332
Kentucky SDWA
90129
Kentucky Wastewater
90129
Louisiana NELAP
03046 (AI33904)
Louisiana SDWA
LA180011
Maryland
270
Massachusetts
M—SCO12
Michigan
9976
Mississippi
SC00012
Nebraska
NE—OS-26-13
Nevada
SC000122018-1
New Hampshire NELAP
205415
New Jersey NELAP
SCO02
New Mexico
SC00012
New York NELAP
11501
North Carolina
233
North Carolina SDWA
45709
North Dakota
R-158
Oklahoma
9904
Pennsylvania NELAP
68-00485
Puerto Rico
SC00012
S. Carolina Radiochem
10120002
South Carolina Chemistry
10120001
Tennessee
TN 02934
Texas NELAP
T104704235-18-13
Utah NELAP
SC000122018-27
Vermont
VT87156
Virginia NELAP
460202
Washington
C780
Page 15 of 15

MAO ASH T4s /PJ P V "p/'��HAIN7£ S / _. OF CUSTODY RECORD AND ANALYSIS REQUEST FORM _ _
i•-•-------•-------------•-----•-'- Duke Energy Analytical Laboratory ' i---'---•-•-•-•-•---•-'-'-•-'-•-•-•--= -----•-Anal -Analytical Laborato Use Only------------------------------------ •-------------------
! Duke Energy MaIlCotleMG03A2 (BWIdInp7405) i iOrder Matrix: GW_WW i Page _1_oP2ge 59 of 59
/IP i Samplesgrigi—In From: NC_ SC_ DISTRIBUTION
Analytical Laboratory 13339 Hagers Ferry Rd i i
i Chain of Custody 8 Hunrersvllk, N. C. 2e078 ! .Logged Date i ORIGINAL to LAB, COPY to CLIENT
pos)a75s245 Faxa I � SAMPLE PROGRAM
Sample Log - 17o1j_a7sso3a_._._. _; i Ground Water X NPDES_ ! m
, _ ki W t UST CO('„ a 3 IlA7F�
Project Name: IMP Assessment Water
Phone No:
Client: AB GW
Business Unit:
Process:
Reap. Center To:
Project ID: AS GW Assessment Water
Activity to:
Mail Code:
MG03A2
WarerbodSta
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Sample Description or ID
GPS Location
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1000
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Re,tnqulshed B
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Comments ELEMENTS15Y-ICP_MS (TRM$: Sti, As, Be, Cd, Cr, Co, Cu, Mo, Ni, Pb, Se, TI (LL), V (LL)
by ICP (TRM): Al, Ba, B, Ca, Fe, Li, Mg, Mn, K, Na, Sr, Zn Hg by 245.1
metals ICP, IMS, Hg (Excluding Ca, Mg, K, Na)
'Bromide analysis Sutton Wells Only'
ELEMENTS
Dissolved metals : All
I I I
Requested Turnaround
`14 Days X
7 Days
48 Hr _
'Other
Add. Cost Will Apply
Filtered
N2S00
500 500 125
HDPE HDPE PET
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