NC0004987_Groundwater Sampling Plan 2014_20141015 (3)

IMYZ
October 10, 2014
Ms. Kim Hutchinson, P.E. Via Email: [e-mail]
Duke Energy Carolinas, LLC
Mail Code EC13Z
P.O. Box 1006
Charlotte, NC 28201-1006
Subject: Generalized Groundwater Flow Directions Figure
Duke Energy Carolinas,LLC
Marshall Steam Station Ash Basin
Dear Ms. Hutchinson:
HDR is pleased to provide the attached figure presenting generalized groundwater flow directions
for the shallow water table aquifer adjacent to the ash basin at the Duke Energy Carolinas, LLC
(Duke Energy) Marshall Steam Station(MSS).
This letter provides the background on the development of this information.
1.0 Background
Duke Energy owns and operates MSS, a coal-fired electric generating station, located in Catawba
County, North Carolina. MSS uses an ash basin for disposal of ash generated by the coal
combustion process and other water treatment at the coal-fired plant.
In 2011, Duke Energy provided Altamont Environmental, Inc.(Altamont)information on the
groundwater monitoring wells installed at the ash basin and information on the water levels in the
ash basin. Altamont utilized this information along with consideration of adjacent bodies of water
and site topography to develop generalized groundwater direction flow arrows for the areas
adjacent to the ash basins. This information was presented in the report titled Generalized
Groundwater Flow Direction Maps for Ash Basins, Duke Energy Carolinas, LLC, Fossil Stations,
December 12, 2011(2011 Altamont report). The report contained figures with similar generalized
groundwater flow arrows for all seven of the Duke Energy Carolinas fossil station ash basins. The
report was prepared by Altamont staff and was sealed by William M. Miller, PE. The information
from that report is used with the permission of Duke Energy.
As stated in Section 3.0 of the 2011 Altamont report:
The purpose of the Generalized Ash Basin Groundwater Flow Direction Maps,
Figures 1 through 7, is to provide Duke with an interpretation of the generalized
hdrinc.com
440 S.Church Street,Suite 900.Charlotte,NC 28202
T 704-338-6700

Ms.Kim Hutchinson.P.E.
October 10,2014
Page 2
groundwater flow directions in the areas surrounding the ash basins. The maps
were developed utilizing existing data that were readily available and with data
collected as part of on-going monitoring at the ash basins. No additional field
investigation was conducted as part of the development of the maps.
The maps are not intended to provide absolute groundwater flow direction data at
a specific location. Rather, they are an interpretation of the generalized
groundwater flow direction for the shallow water table based on readily available
data.
As described in the following sections(Section 4.0, Section 5.0, and Section 6.0),
there may be hydrogeologic conditions present at the ash basins that cause
groundwater flow conditions to differ from the generalized groundwater flow
directions shown on Figures 1 through 7.
I
The generalized groundwater flow directions were determined based on a consideration of the
information described above, most notably that the sites are located in the Piedmont physiographic
province(Piedmont). In addition,the generalizations of typical Piedmont hydrogeology found in A
Master Conceptual Model for Hydrogeological Site Characterization in the Piedmont and Mountain
Region of North Carolina(LeGrand 2004)apply to these sites.
As stated in Section 5.0 of the 2011 Altamont report,the possible effects of pumping from adjacent
water supply wells were not considered in the development of the generalized groundwater flow
direction arrows.
The groundwater elevations used in development of the generalized groundwater direction flow
arrows were from the compliance groundwater monitoring wells(compliance wells)-wells
monitored in association with the National Pollution Discharge Elimination System(NPDES)permits
-and from groundwater monitoring wells voluntarily(voluntary wells)installed by Duke Energy.
Consistent groundwater elevation readings were not measured in the voluntary wells after February
2010. The compliance wells were installed in July and August 2010.
Section 7.0 of the 2011 Altamont report discusses the development of the generalized groundwater
flow direction arrows and the relative level of confidence in the interpretation of the generalized flow
direction. The text below was copied from that report:
Groundwater flow direction arrows are used to depict the interpreted direction of
generalized groundwater flow. Three different colors of arrows were used to
indicate the relative level of confidence in the interpretation of the generalized
groundwater flow direction.
The relative level of confidence in the interpretation of flow direction was
determined by.

Ms.Kim Hutchinson,P.E.
October 10,2014
Page 3
• The distance from groundwater monitoring wells or surface water
elevation data
• The number of groundwater data elevation points utilized
• Consideration of the surface topography
Descriptions of the relative confidence levels indicated by groundwater flow
direction arrow colors are as follows:
• Black arrows represent high confidence in the groundwater flow
direction interpretation. The black arrows were used in areas in
which there were several known groundwater or surface water
elevation data points and the surface topography supported the
interpretation of groundwater flow characteristic of typical
Piedmont groundwater flow.
• Gray arrows represent moderate confidence in the groundwater
flow direction interpretation. The gray arrows were used in areas
where at least one groundwater or surface water elevation point
was known or in areas where there was strong surface
topographic data to support the groundwater flow direction
interpretation.
• White arrows represent estimated groundwater flow direction
interpretation. The white arrows were used in areas where there
was little or no groundwater or surface water elevation data and
there was not conclusive surface topographic data to support a
gray arrow.
2.0 Scope of HDR Review and Results
Since limited groundwater elevation data readings were performed on the voluntary wells after the
installation of the compliance wells during July and August 2010, HDR reviewed the historic
groundwater level data available from the compliance groundwater monitoring wells in conjunction
with the current approximate ash basin pond elevation data.
HDR found the generalized groundwater flow direction arrows presented in the 2011 Altamont
report to generally represent the probable direction of groundwater flow for the shallow water table
aquifer. As stated in the 2011 Altamont report,the generalized groundwater flow direction arrows
present an interpretation of flow direction based on data from the shallow water table aquifer and do
not consider the possible effects of pumping from adjacent water supply wells.

Ms. Kim Hutchinson,P.E.
October 10,2014
Page 4
The ash basin pond elevation at MSS is essentially unchanged from the ash basin pond elevation
utilized in the 2011 Altamont report. Based on the topography of the site,the ash basin poral
elevation,and the water levels measured in the compliance wells, it is unlikely that there would be a
significant change in the direction of the groundwater flow as represented by the generalized
groundwater flow direction arrows developed by Altamont.
The generalized groundwater flow directions for the area adjacent to the MSS ash basin are found
on the attached Marshall Steam Station Ash Basin Figure MSS-1.
HDR appreciates the opportunity to provide continued support to Duke Energy. Should you have
any questions regarding this submittal or need further information, please do not hesitate to contact
me.
Respectfully submitted,
HDR Engineering,Inc.of the Carolinas
7
SEAL
2243
Scott A. Spinner, P.G. �O G�`: 4,4
�.�'
Environmental Gea ist �C0;0 , A
A.
U/IINI6R�•.
cc: Ty Ziegler, HDR
William M. Miller, HDR
Attachments:
Marshall Steam Station Ash Basin Figure MSS-1

S,
GROUNDWATER FLOW DIRECTION ARROW LEGEND:
GENERALIZED GROUNDWATER FLOW DIRECTION
(HIGH CONFIDENCE)
• Supported by several groundwater elevation ,
data points and strong topographic data
GENERALIZED GROUNDWATER FLOW DIRECTION
(MODERATE CONFIDENCE) r
r T` • Supported by at least one groundwater
elevation data point and/or strong
topographic data
GENERALIZED GROUNDWATER FLOW DIRECTION
(ESTIMATED) %r
• Groundwater flaw direction estimated due to
V lack of groundwater data and/or strong
topographic data
NOTES FOR GENERALIZED GROUNDWATER FLOW DIRECTION ARROWS:
1. GENERALIZED GROUNDWATER FLOW DIRECTION ARROWS PRESENT
PROBABLE GENERALIZED GROUNDWATER FLOW DIRECTION FOR
THE SHALLOW WATER TABLE AQUIFER BASED ON MONITORING +_
WELL WATER LEVELS,TOPOGRAPHIC AND HYDROLOGIC FEATURES
SHOWN ON THIS FIGURE. THESE GENERALIZED GROUNDWATER
FLOW DIRECTION ARROWS WERE DEVELOPED IN THE REPORT + w
TITLED"GENERALIZED GROUNDWATER FLOW DIRECTION MAPS FOR ! =
ASH BASINS,DUKE ENERGY CAROLINAS,LLC,FOSSIL STATIONS,
DECEMBER 12,2011",WILLIAM M.MILLER,P.E.ALTAMONT +
ENVIRONMENTAL,ASHEVILLE,NC,PROJECT NUMBER 2370.07. a
r
2. AS NOTED IN THIS REPORT,THESE GENERALIZED GROUNDWATER
FLOW DIRECTION ARROWS DO NOT CONSIDER THE EFFECTS OF
PUMPING FROM POTENTIAL WATER SUPPLY WELLS.
INFORMATION FROM THIS REPORT USED WITH PERMISSION OF
DUKE ENERGY CAROLINAS,LLC.
3. SEE HDR LETTER REPORT SCOTT A.SPINNER(HDR)TO KIM
HUTCHINSON(DUKE ENERGY),DATED SEPTEMBER 12,2014. r
LEGEND:
DUKE ENERGY PROPERTY BOUNDARY •�
ASH BASIN COMPLIANCE BOUNDARY Sf�
ASH BASIN COMPLIANCE BOUNDARY COINCIDENT '
WITH DUKE ENERGY PROPERTY BOUNDARY "h' I
L�
ASH BASIN WASTE BOUNDARY
STRUCTURAL FILL,ASH LANDFILL-LIMIT OF WASTE
LANDFILL COMPLIANCE BOUNDARY 'W"-.•`
ASBESTOS-C&D LANDFILL BOUNDARY :r�aki •s
TOPOGRAPHIC CONTOUR(4 FOOT)
), ASH BASIN COMPLIANCE GROUNDWATER
4 MONITORING WELL
ASH BASIN VOLUNTARY GROUNDWATER -
MONITORING WELL sc -
r "
0 LANDFILL GROUNDWATER MONITORING WELL G
� e
1~
LANDFILL SURFACE WATER SAMPLE LOCATION
— -- STREAM - f
GENERAL NOTES:
1.PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE,
2.ASH 3.ASBULTIN WASTE BOUNDARY,ASH MONTORINGWELLLOCATONSDFILL PROVIDEIT OF DBY UKETE,AND EN RGYSTRUCTURALFILLBOUNDARVAREAPPROXIMATE. GENERALIZED GROUNDWATER FLOW DIRECTIONS DATE
4.SHALLOW MONITORING WELLS(S)-WELL SCREEN INSTALLED ACROSS THE SURFICIAL WATER TABLE. DUKE ENERGY CAROLINAS, LLC OCT. 10, 2014
5.DEEP MONITORING WELLS(D)-WELL SCREEN INSTALLED IN THE TRANSITION ZONE BETWEEN COMPETENT BEDROCK AND THE REGOLITH. 11 A
6.TOPOGRAPHY DATA FOR THE SITE WAS OBTAINED FROM NC DOT GEOGRAPHIC INFORMATION SYSTEM(GIS)WEB SITE. MARSHALL STEAM STATION
7,ORTHOPHOTOGRAPHY WAS OBTAINED FROM NC ONEMAP GIS WEB SITE(DATED 2010). NPDES PERMIT#NCOOO49H7 FIGURE
B.THE ASH BASIN COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN ISA NCAC 02L.0107(a). /000' 0 500' ICOp'
SC,'LF w� CATAWBA COUNTY, NORTH CAROLINA MSS-1

Marshall Steam Station Ash Basin
Groundwater Monitoring
Program Sampling, Analysis,
and Reporting Plan
NPDES Permrt NC0004987
October 10,2014

Duke Energy Carolnas,LLC j Groundwater Mon,torrng Program Sampling. Analvsis and Reporting Plan
Marshall Steam Station,Ash Basin )l
' Report Verification Verification
PROJECT: GROUNDWATER MONITORING PROGRAM
MARSHALL STEAM STATION
ASH BASIN
NPDES PERMIT NC0004987
' TITLE: GROUNDWATER MONITORING
SAMPLING, ANALYSIS, AND REPORTING PLAN
This document has been reviewed for accuracy and quality commensurate with the intended
application.
' Prepared by: aaz Date: /0h-/Z*/r
Checked by: Date:4F U
tApproved bDate: 10 t o 2 fl + L�-
ARPr y:
' Project Manager: Brooke Ahrens, PE
' Professional Geologist Seal:
QtN C �
1 SEAL
2243
1 �' o
A. S��..r
' HDR Engineering, Inc. o I Carolinas
440 South Church St., Suite 1000
Charlotte, NC 28202
' North Carolina Geology License Number C-503

' Duke Energy Caroinas,LLC I Groundwater Monitoring Program Sampling,Analysis,and Reporting Plan ♦�
Marshall Steam Station Ash Basin J
Table of Contents
Table of Contents
Page
' Report Verification .......................................................................................................................i
Tableof Contents........................................................................................................................ii
Listof Figures............................................................................................................................iv
' List of Tables ..............................................................................................................................v
Section1 - Introduction...............................................................................................................1
' Section 2-Site Description.........................................................................................................2
2.1 Plant Description..................................................................................................2
1 2.2 Ash Basin Description..........................................................................................2
Section 3-Site Geology and Hydrogeology................................................................................3
' 3.1 Geologic/Soil Framework.....................................................................................3
3.2 Hydrogeologic Framework. ..3
Section 4- Monitoring Program...................................................................................................5
4.1 Regulatory Requirements for Groundwater Monitoring ........................................5
4.2 Description of Groundwater Monitoring System...................................................5
' 4.3 Monitoring Frequency..........................................................................................6
4.4 Sample Parameters and Methods........................................................................6
' 4.5 Data Quality Objectives........................................................................................7
Section 5-Sampling Procedures................................................................................................8
5.1 Sampling Equipment............................................................................................8
' 5.1.1 Equipment Cleaning Procedures............................................................8
5.2 Groundwater Sampling........................................................................................8
5.2.1 Development of Monitoring Wells...........................................................8
5.2.2 Groundwater Level and Total Depth Measurements ..............................8
5.2.3 Well Purging and Sampling....................................................................9
5.3 Sample Collection..............................................................................................11
' 5.4 Sample Containers, Volume, Preservation, and Holding Time...........................11
5.5 Sample Tracking................................................................................................11
5.6 Sample Labeling................................................................................................11
' 5.7 Field Documentation..........................................................................................11
5.8 Chain-of-Custody Record...................................................................................13
' 5.9 Sample Custody, Shipment, and Laboratory Receipt.............................................13
Section 6 -Analytical Methods..................................................................................................15
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' Duke Energy Carolnas,LLC I Groundwater Monitoring Program Sampling,Analysis,and Reporting Plan
Marshall Steam Station Ash Basin F,�
Table of Contents
Section 7- Internal Quality Control Checks...............................................................................16
' Section 8-Validation of Field Data Package ............................................................................17
Section 9-Validation of Laboratory Data..................................................................................18
Section10- Report Submittal ...................................................................................................19
Section11 - References............................................................................................................20
APPENDICES
' A-Boring Logs and Monitoring Well Construction Records
B- Permit Condition A(11)Attachment XX, Version 1.1, dated June 15, 2011
' C- Monitoring Well Locations
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III

' Duke Energy Caroinas,LLC I Groundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin
List of Figures
List of Figures
1
Figure 1 - Site Location Map
1
Figure 2 -Site Layout
9 Y
' Figure 3 -Typical Monitoring Well Construction Details
Figure 4 - Example Groundwater Monitoring Data Sheet
1 Figure 5- Example Field Sampling Calibration Form
Figure 6 -Chain-of-Custody Record and Analysis Request Form
Figure 7 - North Carolina Groundwater Sampling Site Checklist
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1 Duke Energy Carolnas,LLC I Groundwater Monitoring Program Sampling.Analysis, and Reporting Plan L11
Marshall Steam Station Ash Basin F <
List of Tables
List of Tables
' Table 1 - Monitoring Well Information
Table 2-Sample Parameters and Analytical Methods
Table 3-Sample Containers, Preservatives, and Holding Times
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1 V

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Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling,Analysis, and Reporting Plan ♦
�
Marshall Steam Station Ash Basin J
Section 1 -Introduction
Section 1 - Introduction
This Groundwater Monitoring Program Sampling, Analysis, and Reporting Plan (Plan) is
developed to support the Duke Energy Carolinas, LLC (Duke Energy) requirement for
groundwater monitoring around the Marshall Steam Station (MSS) ash basin operated under
National Pollutant Discharge Elimination System (NPDES) Permit NC0004987.
1 This Plan describes the groundwater monitoring network methodologies of field sampling,
9 9 � 9
record-keeping protocols, laboratory analytical methods, data quality objectives, data validation,
' and reporting that will be used for the MSS ash basin groundwater monitoring program.
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Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin F'�
Section 2-Site Description
Section 2 - Site Description
' 2.1 Plant Description
MSS is a coal-fired electricity-generating facility with a capacity of 2,090 megawatts located on
the west side of Lake Norman in Catawba County, North Carolina, as shown on Figure 1. MSS
' is a four-unit station which began commercial operation in 1965.
Lake Norman is part of Duke Energy's Catawba-Wateree Hydroelectric Project(Federal Energy
Regulatory Commission Project No. 2232), has a surface area of approximately 32,475 acres,
and provides cooling water for the station.
' 2.2 Ash Basin Description
The coal ash residue from the coal combustion process has historically been disposed of in the
MSS ash basin. The ash basin currently receives waste streams from the MSS wastewater and
yard drain sump, coal pile runoff,treated flue gas desulfurization (FGD)wastewater, ash
removal system, and stormwater. The discharge from the ash basin is permitted by the North
Carolina Department of Environment and Natural Resources(NCDENR) Department of Water
Resources(DWR) under NPDES Permit NC0004987.
The ash basin system consists of a single cell impounded by an earthen dike located on the
' southeast end of the ash basin. The ash basin system was constructed in 1965 and is located
approximately 2,000 feet northeast of the power plant. The waste boundary for the ash basin
encompasses approximately 382 acres.
' The full pond elevation for the MSS ash basin is approximately 790 feet. The normal pond
elevation of Lake Norman is approximately 760 feet. Figure 2 is shown with an ash basin
' elevation at 790 feet.
Due to the nature of MSS operations, inflows to the ash basin are highly variable. The inflows
' from the station to the ash basin are discharged to the northwest portion of the ash basin. The
ash basin pond elevation is controlled by the use of concrete stop logs. The discharge from the
ash basin is through a concrete discharge tower located in the eastern portion of the ash basin.
' The concrete discharge tower drains through a 30-inch-diameter slip-lined corrugated metal
pipe which discharges into Lake Norman.
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Duke Energy Carolinas,LLC(Groundwater Monitoring Program Sampling,Analysis,and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 3-Site Geology and Hydrogeology
Section 3 - Site Geology and Hydrogeology
3.1 Geologic/Soil Framework
MSS and its associated ash basin system are located in the Kings Mountain Belt of the
Piedmont physiographic province of North Carolina (Piedmont). The rocks of the Kings
Mountain Belt were formed during the late Proterozoic to Early Paleozoic era. The Kings
Mountain Belt bedrock consists of metasedimentary and metavolcanic rocks including schist,
phyllite, marble, metavolcanic rock, quartzite, and gneiss(North Carolina Geologic Survey
1996).
The soils that overlie the bedrock in the area have generally formed from the in-place
weathering of the parent bedrock. The fractured bedrock is overlain by a mantle of
unconsolidated material known as regolith. The regolith, where present, includes the soil zone;
a zone of weathered, decomposed bedrock known as saprolite; and alluvium. Saprolite,the
product of chemical and mechanical weathering of the underlying bedrock, is typically
composed of clay and coarser granular material up to boulder size and may reflect the texture of
the rock from which it was formed (LeGrand 2004).
Based on a review of the monitoring well installation logs provided by Duke Energy, the soils
comprising the saprolite layer on site were characterized as ranging from micaceous clay to
' gneissic and granitic partially weathered rock. Bedrock encountered on site consists of biotite
gneiss, quartz schist, and granite.
' 3.2 Hydrogeologic Framework
The groundwater system in the Piedmont Province in most cases is comprised of two
interconnected layers or mediums: 1) residuum/saprolite and weathered rock(regolith)
1 overlying, and 2)fractured crystalline bedrock(Heath 1980; Hamed and Daniel 1992). Within
the regolith layer, a thoroughly weathered and structureless material termed residuum occurs
near the ground surface with the degree of weathering decreasing with depth. The residuum
grades into a coarser-grained material that retains the structure of the parent bedrock and is
termed saprolite. Beneath the saprolite, partially weathered bedrock occurs with depth until
sound bedrock is encountered. This mantle of residual soil, saprolite, and weathered rock is a
' hydrogeologic unit that covers and crosses various types of rock(LeGrand 1988). It provides
an intergranular medium through which the recharge and discharge of water from the underlying
fractured rock occurs. The bedrock layer consists of fractured, nonporous crystalline bedrock.
The fractures control both the hydraulic conductivity and storage capacity of the rock mass.
A transition zone at the base of the regolith has been interpreted to be present in many areas of
' the Piedmont. The zone consists of partially weathered/fractured bedrock and lesser amounts
of saprolite that grades into bedrock and has been described as"being the most permeable part
of the system, even slightly more permeable than the soil zone" (Harned and Daniel 1992). The
' zone thins and thickens within short distances and its boundaries may be difficult to distinguish.
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' Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 3-Site Geology and Hydrogeology
It has been suggested that the zone may serve as a conduit of rapid flow and transmission of
contaminated water(Harned and Daniel 1992).
Piedmont topography is characterized by gently rounded sloped hills and valleys. Recharge
typically occurs on upland areas and slopes while groundwater discharge is concentrated in
surface water bodies and lowland areas. LeGrand's (1988, 2004)conceptual model of the
groundwater setting in the Piedmont incorporates the above two medium systems into an entity
that is useful for the description of groundwater conditions. That entity is the surface drainage
basin that contains a perennial stream or river(LeGrand 1988). Each basin is similar to
adjacent basins and the conditions are generally repetitive from basin to basin. Within a basin,
movement of groundwater is generally restricted to the area extending from the drainage divides
to a perennial stream or river(Slope-Aquifer System; LeGrand 1988, 2004). Rarely does
groundwater move beneath a perennial stream or river to another more distant stream (LeGrand
2004).
Therefore, in most cases in the Piedmont, the groundwater system is a two-medium system
(LeGrand 1988) restricted to the local drainage basin. The groundwater occurs in a system
composed of two interconnected layers: residuum/saprolite and weathered rock overlying
fractured crystalline rock separated by the transition zone. Typically, the residuum/saprolite is
partly saturated and the water table fluctuates within it. Water movement is generally through
the fractured bedrock. The near-surface fractured crystalline rocks can form extensive aquifers.
The character of such aquifers results from the combined effects of the rock type, fracture
I system, topography, and weathering. Topography exerts an influence on both weathering and
the opening of fractures while the weathering of the crystalline rock modifies both transmissive
and storage characteristics.
' The aquifer system in the Piedmont typically exists in an unconfined or semi-confined condition
in the bedrock zone. Under natural conditions, the general direction of groundwater flow can be
1 approximated from the surface topography. Groundwater moves both vertically down through
the regolith and parallel to the bedrock surface to areas where groundwater discharges as
seepage into streams, lakes, or other surface water bodies.
' A surface water divide is located to the west of the MSS ash basin approximately along Sherrills
Ford Road to the west of the ash basin (Figure 2). A surface water divide is also located
approximately along Island Ford Road to the north of the ash basin. Lake Norman is located to
the southeast of the ash basin. The geology/groundwater conditions at the site are expected to
be generally consistent with the characteristics of the conceptual groundwater model developed
' by LeGrand for the Piedmont region.
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Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis,and Reporting Plan1J
Marshall Steam Station Ash Basin 1-N
Section 4-Monitoring Program
Section 4 - Monitoring Program
' 4.1 Regulatory Requirements for Groundwater Monitoring
The NPDES program regulates wastewater discharges to surface waters to ensure that surface
water quality standards are maintained. MSS operates under NPDES Permit NC0004987 which
' authorizes discharge of cooling water and intake screen backwash (Outfall 001), treated
wastewater(consisting of metal cleaning wastes, coal pile runoff, ash transport water, domestic
wastewater, low volume wastes, and FGD wet scrubber wastewater) (Outfall 002), yard sump
' overflows (Outfalls 002A and 002B), and non-contact cooling water from the induced draft fan
control house (Outfall 003)to the Catawba River(Lake Norman) in accordance with effluent
' limitations, monitoring requirements, and other conditions set forth in the permit. The NPDES
permitting program requires that permits be renewed every 5 years.
The MSS NPDES permit requires groundwater monitoring. Permit Condition A(11)Attachment
' XX, Version 1.1, dated June 15, 2011, lists the groundwater monitoring wells to be sampled,the
parameters and constituents to be measured and analyzed, and the requirements for sampling
frequency and results reporting. Attachment XX also provides requirements for well location
and well construction. A copy of Attachment XX is included as Appendix B.
The compliance boundary for groundwater quality at the MSS ash basin site is defined in
' accordance with 15A NCAC 02L .0107(a) as being established at either 500 feet from the waste
boundary or at the property boundary, whichever is closer to the source.
' Sampling at the compliance groundwater wells commenced in February 2011. Analytical results
have been submitted to the NCDENR Department of Water Resources(DWR) before the last
day of the month following the date of sampling for all monitoring wells. In the future, analytical
results will be submitted to the DWR within 60 days of the date of sampling for all monitoring
wells.
' 4.2 Description of Groundwater Monitoring System
The groundwater monitoring for the MSS ash basin consists of the following monitoring wells:
MW-4, MW-4D, MW-10S, MW-10D, MW-11 S, MW-11 D, MW-12S, MW-12D, MW-13S,
MW-13D, MW-14S, and MW-14D. With the exception of monitoring wells MW-4 and MW-4D,
the compliance monitoring wells were installed in July and August 2010. Monitoring well MW-4
was installed by Duke Energy in 1989 as part of the Marshall Dry Ash Landfill (Permit No. 1804)
groundwater monitoring network. Monitoring well MW-4D was installed by Duke Energy in 2006
prior to the installation of the ash basin compliance monitoring wells as part of a voluntary
monitoring system. Based on the locations of monitoring wells MW-4 and MW-4D relative to the
' ash basin, they were incorporated into the ash basin compliance monitoring network. Well
construction data is provided in Table 1. A copy of the boring logs and monitoring well
construction records are provided in Appendix A.
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' Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin 01
Section 4-Monitoring Program
The locations for the compliance boundary monitoring wells were selected in consultation with
the DWR Aquifer Protection Section. The locations of the monitoring wells,the waste boundary,
and the compliance boundary are shown on Figure 2. A summary of the monitoring well
location data is included in Appendix C. Based on the slope-aquifer system conceptual model,
groundwater at the site is expected to flow downward from the topographic divides along
Sherrills Ford Road on the west side of the ash basin and Island Ford Road on the north side of
the ash basin. As described below, the wells provide monitoring data on the groundwater
' adjacent to the ash basin.
Monitoring wells MW-4', MW-10S2, MW-11S, MW-12S, MW-13S, and MW-14S were installed
' by rotary drilling methods using hollow stem augers, with the well screen installed above auger
refusal to monitor the shallow aquifer within the saprolite layer. These wells were installed with
screen lengths of either 10 feet or 15 feet. The screens were installed with screen intervals
ranging from 3 feet to 18 feet below ground surface (bgs) at MW-13S and 37 feet to 52 feet bgs
at MWA 1 S.
Monitoring wells MW-10D, MWA 1 D, MW-12D, MW-13D, and MW-14D were installed by rotary
drilling methods using hollow stem augers and by rock coring techniques(HQ diameter barrel).
Monitoring well MW-4D3 was installed using hollow stem augers and rock coring techniques
' with an NQ diameter barrel. These monitoring wells were installed in the fractured rock
transition zone with screen lengths of 5 feet. The screens were installed with screen intervals
ranging from 41.5 feet to 46.5 feet bgs at MWA 3D and 90 feet to 95 feet bgs at MWA 2D.
' The monitoring wells at MSS are equipped with dedicated bladder-type pumps.
Groundwater monitoring wells MW-6S, MW-6D, MW-7S, MW-7D, MW-8S, MW-8D, MW-9S,
' and MW-9D were installed by Duke Energy in 2006 as part of a voluntary monitoring system.
No groundwater samples are currently collected from these wells under the compliance
monitoring program.
' 4.3 Monitoring Frequency
The monitoring wells will be sampled three times per year in February, June, and October.
4.4 Sample Parameters and Methods
' The monitoring program consists of sampling and analysis for parameters and constituents
identified in Attachment XX of the NPDES permit(Appendix B).
The parameters and constituents and the analytical methods are presented in Table 2.
Duke Power Company, Marshall Steam Station, Dry Ash Landfill, Monitoring Well Drill Records, July
1989.
2 Wells other than MW-4 and MW-4D have the boring log and well record found in MACTEC's Ash Basin
' 3 Monitoring Well Installation Report(MACTEC Project No. 6228-10-5284)dated August 26,2010.
S&ME, Inc., Ash Basin Monitoring Well Installation, Duke Power—Marshall Steam Station, S&ME
Project No. 1356-06-834, December 4, 2006.
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' Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling.Analysis,and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 4-Monitoring Program
The analytical results will be compared to the 2L Standards for the parameter or constituent.
' 4.5 Data Quality Objectives
The overall Quality Assurance(QA)objective is to ensure that reliable data of known and
acceptable quality are provided. All measurements will be documented to yield results that are
representative of the groundwater quality. Data will be calculated and reported in units as
required by the NCDENR.
The analytical QA objectives for precision, accuracy, and completeness have been established
by the laboratory(s) in accordance with the Environmental Protection Agency(EPA)or other
' accepted agencies for each measurement variable where possible. The objectives are outlined
in the Duke Energy Analytical Laboratory Procedures Manual and are available upon request.
' Appropriate methods have been selected to meet applicable standards for groundwater quality.
Instances may occur, however, in which the condition of the sample will not allow detection of
the desired limits for various parameters either because of matrix interference or high analyte
' concentrations requiring sample dilution. The laboratory(s)will provide sufficient documentation
with each data package to notify reviewers about any analytical problems with the data, if
needed.
1
1

' Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis,and Reporting Plan
Marshall Steam Station Ash Basin�'�
Section 5-Sampling Procedures
Section 5 - Sampling Procedures
' 5.1 Sampling Equipment
Development, purging, and sampling equipment shall be selected to ensure that materials are
' compatible with the sample parameters and comply with state and federal regulatory
requirements for sampling. Positive-gas-displacement fluorocarbon resin bladder pumps are
installed in each monitoring well as dedicated purging and sampling systems.
5.1.1 Equipment Cleaning Procedures
Dedicated sampling equipment has been installed in each monitoring well. In the event
non-dedicated equipment is used between monitoring wells, equipment will be cleaned before
' use and between wells in accordance with standard EPA-approved cleaning procedures for field
equipment. This standard is outlined in the Standard Operating Procedures and Quality
Assurance Manual, Engineering Support Branch, EPA Region IV, February 1, 1991.
5.2 Groundwater Sampling
5.2.1 Development of Monitoring Wells
All 12 monitoring wells addressed in this sampling plan have been developed.
1 If new monitoring wells are installed, they will be developed prior to initial sampling.
Development removes silt that has settled into the bottom of the well following installation and
removes fine silt and clay particles from the well screen and sand-pack surrounding the screen.
Well development is necessary to eliminate potential clogging and enhance well performance.
Development involves removing an estimated ten or more well volumes from the well using a
positive-gas-displacement fluorocarbon resin bladder pump with up-and-down agitation to
' loosen particles from the well screen. After development of a well, a true well depth is recorded
referencing the top of well casing (TOC).
' 5.2.2 Groundwater Level and Total Depth Measurements
Water level measurements shall be collected and recorded to determine the groundwater
elevations and groundwater flow direction and to calculate the volume of standing water in the
well. All monitoring wells have been surveyed to determine the elevation of the TOC. All depth
and water level measurements shall be referencing the TOC and recorded to the nearest
one-hundredth of a foot.
Water level measurements shall be made with an electronic measuring device consisting of a
spool of dual-conductor wire and sensor. When the sensor comes in contact with water, the
circuit is closed and a meter light and/or buzzer are attached to the spool to signal the contact.
' The sensor is lowered further until it rests on the bottom of the well to determine the total depth
of the well referencing the TOC. The depth and water level measurements shall be used to
verify that the well has not filled with silt and to calculate the volume of water in the well.
' The volume of well water(in gallons) is calculated using the following equation:
8

Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling.Analysis, and Reporting Plan FN
Steam Station Ash Basin
Section 5-Sampling Procedures
V= h *Tr* r2 * (7.48052 gal/ft)
' Where:
V=volume of water in the well screen and casing (gallons)
h = height of standing water(feet) =total well depth -water level
' r= radius of well casing (feet)
For example, a 2-inch-diameter casing will have a volume of 0.1631 gallons per foot.
In dedicated sampling systems, an accurate well depth is determined, as indicated above, after
development of the well and prior to installation of the dedicated bladder pump. The well depth
' will be re-measured any time the dedicated sampling system is removed for repair or
replacement. The well depth, water level measurement, and calculated well volume are
recorded on the Groundwater Monitoring Data Sheet(Figure 4).
' 5.2.3 Well Purging and Sampling
The selection of purging technique is dependent on the hydrogeologic properties of the aquifer
and hydraulic characteristics of each well. Hydraulic conductivity, water column,well volume,
screen length, and other information are evaluated to select the purging technique to acquire
groundwater representative of the aquifer conditions. The Groundwater Monitoring Data Sheet
(Figure 4) is used to record purging methods and measurements.
' A multi-parameter water quality monitoring instrument is used to measure field stabilization or
indicator parameters for determining representative groundwater during purging. These
instruments measure pH, specific conductance,temperature, dissolved oxygen (DO), and
oxidation-reduction potential (ORP). Instrument calibration must be performed and documented
before and after each sampling event. The pH subsystem will be calibrated with two pH
standards(pH 7.0 and 4.0) bracketing the expected groundwater pH. The specific conductance
subsystem will be calibrated using two standards bracketing the expected groundwater
conductivity. Calibration results will be recorded on a Field Sampling Calibration Form
' (Figure 5).
Various well purging techniques are described below. The purging method utilized at any
' particular well will be selected after considering the characteristics of the well and the purging
method(s) used during previous sampling events.
' CONVENTIONAL PURGING
This technique entails removing one equivalent well volume and measuring the indicator
parameters(temperature, pH, and specific conductance). When the parameters have stabilized
to within t0.2 pH units and t10 percent for temperature and conductivity over three to five well
' volumes, representative groundwater has been achieved for sampling. It is acceptable to begin
sampling after five complete well volumes have been removed, even when indicator parameters
have not stabilized. Groundwater is pumped into a graduated container to measure the volume
g

' Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling,Analysis,and Reporting Plan
Marshall Steam Station Ash Basin
Section 5-Sampling Procedures
of water purged. Under normal rates of recovery, samples should be collected immediately
' after purging in accordance with EPA guidelines.
For low-yield wells incapable of yielding three to five well volumes in a reasonable amount of
' time(e.g., 2 hours or less), groundwater is purged to the elevation of the pump intake while
measuring indicator parameters. Typically, low-yield wells are evacuated to dryness one time
and sampled when sufficient water level recovery occurs. Turbidity is not a required
1 stabilization parameter, but turbidity levels of 10 nephelometric turbidity units (NTU) or less
should be targeted.
' LOW-FLOW PURGING
Low-flow purging and sampling are appropriate when the recharge rate of the well approximates
or equals the discharge rate of the pump with minimal drawdown of the water column (s 1 foot).
' During low-flow purging and sampling, groundwater is pumped into a flow-through chamber at
flow rates that minimize or stabilize water level drawdown within the well. Indicator parameters
are measured over time(usually at 5-minute intervals). When parameters have stabilized within
' t0.2 pH units; t10 percent for temperature, conductivity, and DO; and±10 millivolts(mV)for
ORP over three consecutive readings; representative groundwater has been achieved for
sampling. Turbidity is not a required stabilization parameter, but turbidity levels of 10 NTU or
less should be targeted.
MODIFIED LOW-FLOW PURGING
' This technique is considered a viable option particularly in the Piedmont region due to the likely
presence of fine-grained soils where water level drawdown cannot be stabilized while pumping.
When the well recharge rate is less than the pump discharge rate, excessive drawdown
' (>1 foot) of the water column occurs and mixes with stagnant water located above the screened
interval. One equivalent well volume is removed initially before measuring indicator parameters.
Frequently, removal of the initial well volume reduces the hydraulic head and allows for
matching of the recharge rate with the pumping rate providing stabilization of drawdown.
Indicator parameters should be measured at 5-minute intervals using a flow-through chamber
attached to a multi-parameter water quality instrument. When parameters have stabilized to
within t0.2 pH units; t10 percent for temperature, conductivity, and DO; and t10 mV for ORP
over three consecutive readings; representative groundwater has been achieved for sampling.
Turbidity is not a required stabilization parameter, but turbidity levels of 10 NTU or less should
' be targeted.
VERY LOW-YIELD WELL PURGING
This technique provides the best option for monitoring wells that historically purge to dryness
and do not sufficiently recharge to provide adequate volume for sample collection. Wells that
yield less than 100 milliliters per minute (mUmin)frequently incur significant drawdown during
well purging. Therefore, if the well yield is less than 100 mUmin, the volume of the pumping
system(i.e., the pump bladder, tubing, and flow-through chamber)shall be calculated and two
pumping system volumes shall be removed. Indicator parameters will be measured and
' recorded initially, and then sample collection will begin.
1 10

Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling,Analysis,and Reporting Plan�1
�
Marshall Steam Station Ash Basin J
Section 5-Sampling Procedures
5.3 Sample Collection
Groundwater samples are collected after representative groundwater has been determined by
purging and stabilizing the indicator parameters.
' Sampling personnel wear clean, disposable, non-powdered nitrile gloves at each location.
Samples are collected in the order of the volatilization sensitivity of the parameters:
' • Metals, metalloids, and selenium
• Sulfate and chloride
• Total dissolved solids
After collection, samples will be preserved and stored according to parameter-specific methods
' and delivered to the laboratory under proper Chain-of-Custody(COC) procedures. All pertinent
notations, water-level measurements, removed well volumes, and indicator parameters shall be
documented on the Groundwater Monitoring Data Sheet(Figure 4).
5.4 Sample Containers, Volume, Preservation, and Holding Time
All sample containers supplied by the laboratory for the collection of groundwater samples shall
1 be new and pre-cleaned as approved by EPA procedures appropriate for the parameters of
interest. Table 3 summarizes the sample containers, sample volume, preservation procedures,
and holding times required for each type of sample and parameter. Sample containers will be
kept closed until used. All sample containers will be provided by Duke Energy or vendor
laboratories.
' 5.5 Sample Tracking
The COC procedures allow for tracing the possession and handling of individual samples from
the time of field collection through laboratory analysis and report preparation. Samples shall be
pre-logged prior to sample collection. This process assigns a unique tracking number for each
sample and generates corresponding labels. An example of the COC Record is provided as
' Figure 6.
5.6 Sample Labeling
1 Sample containers shall be pre-labeled and organized prior to field activities as part of the
pre-sampling staging process. As samples are collected, the sampling personnel shall write the
following information directly on the label: sampling date and time, and initials of sample
' collector. This information is also recorded on the Groundwater Monitoring Data Sheet
(Figure 4)and the COC Record (Figure 6).
' 5.7 Field Documentation
Field documentation from each sampling event is recorded on the Groundwater Monitoring Data
Sheets(Figure 4), the Field Sampling Calibration Form (Figure 5), and the Chain-of-Custody
' Record (Figure 6). Additionally, a Groundwater Sampling Site Checklist(Figure 7) is completed
indicating information about the monitoring well such as proper identification (ID)tag and
ti

Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling,Analysis, and Reporting Plan
Marshall Steam Station Ash Basin F,�
Section 5-Sampling Procedures
condition of protective casing and pad. Field notations shall be made during the course of the
field work to document the following information as applicable:
• Identification of well
• Well depth
• Static water level depth and measurement technique
• Presence of immiscible layers and detection method
I • Well yield— high or low
• Purge volume or pumping rate
• Sample identification numbers
I • Well evacuation procedure/equipment
• Sample withdrawal procedure/equipment
• Date and time of collection
• Types of sample containers used
• Identification of replicates or blind samples
• Preservative(s) used
• Parameters requested for analysis
' • Field analysis data and methods
' • Sample distribution and transporter
• Field observations during sampling event
• Name of sample collector(s)
• Climatic conditions including estimate of air temperature
This field notation information will be entered on the Groundwater Monitoring Data Sheets
(Figure 4), the Field Sampling Calibration Form (Figure 5), or the Chain-of-Custody Record and
1 Analysis Request Form (Figure 6)which are filled out for each sampling event. These
documents will be arranged and filed by project and date. Recorded entries will be made on
electronic forms or on paper forms in indelible ink. Errors on paper documents will be corrected
by drawing a line through the error, initialing and dating the correction, and starting a new entry
on the next line (if necessary).
12

' Duke Energy Carolinas,LLC i Goundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 5-Sampling Procedures
5.8 Chain-of-Custody Record
( The COC Record (Figure 6)accompanies the sample(s), traces sample possession from time of
collection to delivery to the laboratory(s), and clearly identifies which sample containers have
been designated for each requested analysis. The record includes the following types of
information:
• Sample identification number
• Signature of collector
I • Date and time of collection
• Sample type (e.g., groundwater, immiscible layer)
' • Identification of well
• Number of containers
• Parameters requested for analysis
q Y
I • Preservative(s) used
• Signature of persons involved in the chain of possession
' • Inclusive dates of possession
5.9 Sample Custody, Shipment, and Laboratory Receipt
For the purpose of these procedures, a sample is considered in custody if it is:
• In actual possession of the responsible person
• In view, after being in physical possession
' • Locked or sealed in a manner so that no one can tamper with it after having been in
physical custody or in a secured area restricted to authorized personnel
All samples shall be maintained in the custody of the sampling crew during the sampling event.
At the end of each sampling day and prior to the transfer of the samples off site, entries shall be
completed on the COC form for all samples. Upon transfer of custody,the COC form is signed
by a sampling crew member, including the date and time. If outside vendor laboratories are
utilized, samples shall be delivered to these facilities by Duke Energy personnel or courier.
All COC forms received by the laboratory(s)shall be signed and dated by the respective
supervising scientist(s)or their designee (at the Duke Energy lab) or the laboratory sample
custodian (at vendor labs) immediately following receipt by the laboratory.
13

' Duke Energy Carolinas,LLC I Goundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 5-Sampling Procedures
The analysts at the laboratory(s) maintain a sample tracking record that will follow each sample
through all stages of laboratory processing. The sample tracking records show the date of
sample extraction or preparation and analysis. These records are used to determine
compliance with holding time limits during lab audits and data validation.
Custody procedures followed by Duke Energy laboratory personnel are described in detail in the
Duke Energy Laboratory Services Procedures Manual.
1
r
i
1
� ,4
1

1
Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling,Analysis,and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 6-Analytical Methods
Section 6 - Analytical Methods
The main analytical laboratory used in this program is the Duke Energy Laboratory Services
1 Laboratory: N.C. Drinking Water(NC37804)and Wastewater(#248) Certifications. The
organizational structure and staff qualifications of the laboratory are discussed in its generic
Quality Assurance Program (QAP). The QAP and the Analytical Laboratory Procedures Manual
are available for review upon request.
Vendor laboratories that meet EPA and North Carolina certification requirements may be used
for analyses with approval by Duke Energy.
The analytical methods used for the samples analyzed for this Groundwater Monitoring Program
are listed in Table 2. Specific conductance, field pH, and temperature are measured in the field
according to the Duke Energy Groundwater Monitoring and Sample Collection Procedure or the
instrument manufacturer instructions.
II
1
15

Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis,and Reporting Plan
Marshall Steam Station Ash Basin
Section 7-Internal Quality Control Checks
i Section 7 - Internal Quality Control Checks
Internal laboratory QC checks used by the laboratories are described in each laboratory's
generic QAP and procedures manual. Using the internal laboratory QC checks, the laboratories
demonstrate the ability to produce acceptable results using the methods specified.
Internal quality control checks for sampling procedures and laboratory analyses will be
conducted with each sampling event. These checks will consist of the preparation and submittal
of field blanks,trip(travel) blanks, and/or field replicates for analysis of all parameters at
' frequencies described in the laboratory(s) procedures manuals.
The field QC blanks and replicates that may be included as internal QC checks are described
' below. The specific type and number of blanks used may vary depending on the sampling
event and will be determined by the Duke Energy field sampling personnel:
i • Field Blanks: A field blank consists of a sample container filled in the field with organic-
free, deionized, or distilled water prepared and preserved in the same manner as the
samples. The field blank is transported to the laboratory with the samples and analyzed
' along with the field samples for the constituents of interest to check for contamination
imparted to the samples by the sample container, preservative, or other exogenous
sources. Field blanks are typically utilized for each sampling event. The field blanks are
itypically analyzed for major anions, cations, and metals.
• Trip Blanks: A trip(travel) blank is a sample container filled with organic-free water in
the laboratory that travels unopened with the sample bottles. Trip blanks are typically
utilized when sampling for volatile organic compounds. The tri blank is returned to the
P 9 9 P P
laboratory with the field samples and analyzed along with the field samples for
parameters of interest.
• Equipment Blanks: If non-dedicated equipment is used between wells, it is
recommended that equipment blanks be collected. The field equipment is cleaned
following documented cleaning protocols. An aliquot of the final control rinse water is
passed over the cleaned equipment directly into a sample container and submitted for
analyses.
• Field Replicates: A field replicate is a duplicate sample prepared at the sampling
locations from equal portions of all sample aliquots combined to make the sample. Both
' the field replicate and the sample are collected at the same time, in the same container
type, preserved in the same way, and analyzed by the same laboratory as a measure of
sampling and analytical precision.
i
! ,6
1

' Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis, and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 8-Validation of Field Data Package
Section 8 - Validation of Field Data Package
The field data package includes all of the field records and measurements developed by the
sampling team personnel. The field data package validation will be performed by Duke Energy
personnel. The procedure for validation consists of the following:
' • A review of field data contained on the Groundwater Monitoring Data Sheets for
completeness.
' • Verification that equipment blanks, field blanks, and trip blanks were properly prepared,
identified, and analyzed.
' • A check of the Field Sampling Calibration Form for equipment calibration and instrument
conditions.
• A review of the COC Record for proper completion, signatures of field personnel and the
' laboratory sample custodian, dates and times, and for verification that the correct
analyses were specified.
1
17

' Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling,Analysis,and Reporting Plan
Marshall Steam Station Ash Basin�'�
Section 9-Validation of Laboratory Data
Section 9 - Validation of Laboratory Data
The laboratory will perform a validation review of the submitted samples and analytical results to
ensure that the laboratory QA/QC requirements are acceptable.
1
1
18

Duke Energy Carolinas,LLC I Groundwater Monitoring Program Sampling.Analysis,and Reporting Plan
Marshall Steam Station Ash Basin FN
Section 10-Report Submittal
Section 10 - Report Submittal
A report of the monitoring results for all wells will be submitted to the DWR within 60 days of the
date of sampling. The monitoring results will be submitted on NCDENR Form GW-59CCR.
The DWR will be notified in the event that vendor lab analyses have not been completed within
' this time frame. All Groundwater Monitoring Data Sheets, Field Calibration Forms, Chain-of-
Custody Records, Laboratory QA data, and Data Validation Checklists shall be kept on file by
Duke Energy and are available upon request.
1
1
1 19
1

Duke Energy Carolinas,LLC i Groundwater Monitoring Program Sampling,Analysis, and Reporting Plan
Marshall Steam Station Ash Basin 01
Section 11-References
Section 11 - References
Duke Power Company, Marshall Steam Station, Dry Ash Landfill, Monitoring Well Drill Records.
July 1989.
Harned, D.A. and Daniel, C.C., III. 1992. The Transition Zone Between Bedrock and Regolith:
1 Conduit for Contamination? p. 336-348, in Daniel, C. C., III,White, R. K., and Stone, P. A.,
eds., Groundwater in the Piedmont: Proceedings of a Conference on Ground Water in the
Piedmont of the Eastern United States, October 16-18, 1989, Clemson University, 693p.
Heath, R.C. 1980. Basic elements of ground-water hydrology with references to conditions in
North Carolina: U. S. Geological Survey Water-Resources Open-File Report 80-44, 86p.
LeGrand, H.E. 1988. Region 21, Piedmont and Blue Ridge, p.201-208, in Black, W.,
Rosenhein, J.S., and Seaber, P.R., eds., Hydrogeology: Geological Society of America, The
' Geology of North America, v. 0-2, Boulder, Colorado, 524p.
LeGrand, Harry, Sr. 2004. A Master Conceptual Model for Hydrogeological Site
Characterization in the Piedmont and Mountain Region of North Carolina, North Carolina
1 Department of Environment and Natural Resources.
MACTEC. 2010. Ash Basin Monitoring Well Installation Report, Marshall Steam Station,
' MACTEC Project No. 6228-10-5284. August 26, 2010.
S&ME, Inc. 2006. Ash Basin Monitoring Well Installation, Duke Power—Marshall Steam
' Station, S&ME Project No. 1356-06-834, December 4, 2006.
North Carolina Geologic Survey. 1996. Generalized Geologic Map of North Carolina, 1991,
Reprinted 1996.
' 20

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DUKE ENERGY CAROLINAS, LLC OCT. 10, 2014
MARSHALL STEAM STATION ASH BASIN
' NPDES PERMIT #NC0004987 FIGURE
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NOTES:
' 1.PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE. DATE
2.ASH WASTE BOUNDARY,STRUCTURAL FILL,AND LANDFILL BOUNDARIES WERE PROVIDED BY DUKE ENERGY AND ARE APPROXIMATE. SITE LAYOUT MAP
3.AS-BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY. OCT. 10,2014
4.SHALLOW MONITORING WELLS(S)-WELL SCREEN INSTALLED ACROSS THE SURFICIAL WATER TABLE. DUKE ENERGY CAROLINAS, LLC
S.DEEP MONITORING WELLS(D)-WELL SCREEN INSTALLED IN THE TRANSITION ZONE BETWEEN COMPETENT BEDROCK AND THE REGOLITH. MARSHALL STEAM STATION ASH BASIN
' 6.TOPOGRAPHY DATA FOR THE SITE WAS OBTAINED FROM NC DOT GEOGRAPHIC INFORMATION SYSTEM(GIS)WEB SITE. FIGURE
7.ORTHOPHOTOGRAPHY WAS OBTAINED FROM NC ONEMAP GIS WEB SITE(DATED 2009). 1.000' 0 500' .�w NPDES PERMIT#NC0004987
8.THE ASH BASIN COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L.0107(a). SCALE CATAWBA COUNTY, NORTH CAROLINA 2
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' INFORMATION PROVIDED BY DUKE ENERGY CAROLINAS, LLC
' DATE
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CONSTRUCTION FIGURE
' DETAILS 3
1

i
DUKE '` DUKE ENERGY PROCEDURE NO 3175.1
ENERGY I GROUNDWATER MONITORING DATA SHEET
' FOR CONVENTIONAL SAMPLING
SITE NAME Marshall Steam Station PERMIT# NC0004987 SITE ID N/A
iPROJECT NAME Ash Basin Groundwater Monitoring FIELD CREW
SAMPLING DATE(s) WELL/LOCATION NAME
MONITORING WELL INFORMATION
WELL DIAMETER(in) TOC ELEV(ft msl) MIDDLE OF WETTED SCREEN(ft toc)
WELL DEPTH(ft TOC) GS ELEV(ft iPUMP INTAKE DEPTH(ft TOC)
i SCREEN LENGTH(ft) ELEV REF SCREEN INTERVAL(ft TOC) TO
EQUIPMENT INFORMATION
LEVEL METER SERIAL# SAMPLING EQUIPMENT PURGE METHOD
i TUBING DIAMETER(in)
PUMP CONTROLLER SETTINGS
PRESSURE (psi) RECHARGE (sec) I DISCHARGE (sec)
i SAMPLING INFORMATION
INITIAL DEPTH TO WATER(ft TOC) WATER COLUMN(ft) Well Volume=water column X conversion factor
WATER ELEVATION(ft ni WELL VOLUME (gal) (Conversion factor dependent on well diameter
' DETECTED ODOR None CONVERSION FACTOR 0.1631 and selected well volume units)
APPEARANCE Normal
Id I1. _ (gal)
PURGE WATER LEVEL COMPLETE TEMP SPECIFIC PH TURBIDITY ORP DISSOLVED WELL VOL
VOLUME AFTER PURGE' EVACUATION COND. OXYGEN (recalculates on
current water
(gaO Ift) (YES/NO) (deg C) (umho/cm) (SU) (NTU) (mV NFH) (ni level)
i TOTAL PURGE `Optional measurement to recalculate well CHLORINE Img/Il
VOLUME volume when purging results in substantial SAMPLE COLLECTED BY DATE TIME
0.00 drawdown of water column ❑ Nq
' QC By: 1 11
WELL CONDITION ADDITIONAL WELL CONDITION NOTES
i PROTECTIVE CASING
WELL PAD
WELL CASING
WELL TAG
iSAMPLING NOTES
1
iFIGURE 4: EXAMPLE GROUNDWATER MONITORING DATA SHEET

FIELD SAMPLING CALIBRATION FORM
' STUDY: Marshall Steam Station Ash Basin Groundwater Monitoring
DATE(s): SURFACE UNIT READER:
COLLECTORS: SURFACE UNIT SERIAL M
' ANALYZER MODEL#: ANALYZER SERIAL#:
OTHER EQUIPMENT: WEATHER CONDITIONS:
' PROCEDURE#: I HYDROLAB 3210.3 1 VALIDATED BY:
Calibration Date 1 Time DATE: I I TIME: DATE: TIME:
BP mmH BP(mmHg)
Calibation Instrument Standard Instrument Standard
Parameter Calibration Results Calibration Results
Standard Value Value Value Value
SS 0.0 --► 0.0 Instrument Zeroed 0.0 --► 0.0 Zero Pass
SPEC.COND.
(US/cm) SS —► 350 --► 350
' SS --► 150 --► 150
B(7.00) —► 7.00 .—/—►
pH B(4.00) —► 4.00 --►
(units) B(10.00) 10.00 --►
' ..—.Buff::TemP.._25.00.. ..—..—..—..—..�. ..�. Buffer Temp.�..—.. ..—..—...........
Mid-Day Ck •B(7.00)• —►
Time: Buffer Temp.
' p ORP SS(7.00) —► 285 —/—► 285
(mV) SS(4.00) N/A —► 462 N/A —r—► 462
ORP Temp. 25.00 ORP Temp. 25.00
' n w
00
(mg/L) W
AW —► --►
F1 TURB
(ntu) SSI
S —/—►
Temp Cert Device#
TEMP NIST N/A —► N/A Adjustment Not Available N/A --► N/A Adjustment Not Available
' (deg C)
AMMONIUM SS N/A --► N/A N/A --► N/A
(mg/L) SS N/A —► N/A N/A --► N/A
' INSTRUMENT MAINTENANCE DATE if TIME
Conductance Subsystem pH Subsystem
❑ Cleaned Electrodes C Cleaned Electrodes
' ❑ Tested-OK ❑ Replaced ref Electrode KCL
❑ See Notes ❑ Replaced Ref.Electrode Tip
❑ Tested-OK ❑ See Notes
Dissolved Oxygen Subsystem Ammonium Subsystem
❑ Replaced Teflon Membrane 1:1 Cleaned Electrode Tip
❑ Replaced 00 electrolyte ❑ Installed New Electrode
❑ Cleaned Electrode ❑ Removed Electrode/Installed Plug
❑ See Notes ❑ Tested-OK ❑ See Notes
' Oxidation Reduction Subsystem Turbidity Subsystem
❑ Cleaned Electrode ❑ Cleaned Electrode&Wiper
❑ Tested-OK See Notes 10 Tested-OK El See Notes
Temperature Subsystem I Depth Subs stem
Cleaned Electrode EJ Reset/Calibrated
❑ Tested-OK See Notes ❑ Tested-OK 0 See Notes
KEY: B=Buffer W=Winkler —►=Adjusted To N/A=Not Applicable
SS=Standard solution AW=Average Winkler —►=Not Adjusted To
' NOTE
' FIGURE 5: EXAMPLE FIELD SAMPLING CALIBRATION FORM

r r■ wr rr rr rr rr rr r r r r r r rr rr ■■� rr rr
CHAIN OF CUS_T_ODY RECORD AND ANALYSIS REQUEST FORM
DukeDuke Energy Analytical Lab Services j j Analytical LaboratoryUse Onl i
I ILIMS# ! "'Page 1 of 1
P4ftrEnergy- Mail Code 9 Hager (Building 7405) NC
i i Originating ! DISTRIBUTION
13339 Hagers Ferry Rd j I From SC I ORIGINAL to LAB,
Huntersville, N.C. 28078 i ILo ed 8 Date&Time SAMPLE PROGRAM 1
For Detailed Instructions,see: 99 y COPY to CLIENT
[phone] i
http9/dewww/essenv/coc/ Groundwater_
_ _ _ _ _ _ _Fax: [phone] 1 i i
_.S._.Z._._._._._._._._._._ NPDES_
1)Project Name 2)Phone No: vendor Drinking Water_ 1
w ! UST i
a i Cooler Tem C _
a 3)Client 4)FaxNo: jPO# 15Preserv.:1=HCL
" 2=1-12SO4 3=HNO3
i
4--Ice 5=None w
E 5)Business Unit: 20036 6)Process: 7)Resp.To: :MR#
E I m
y 8)Project ID: 9)Activlty ID: 10)Mail Code: 0
� U
U HON-SHADED a a
m
_.._.._.._.._. , o
F-
LAB USE ONLY i 14C011ection Information E a
ii
12 Chem Desktop o
1L�D No. "Sample Description or ID Date Time Signature
9
ii
1 I
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' 6
Customer to sign&date below
21)Relinqulshed By Date/Time Accepted By Daterrime O
.y 22Requested Turnaround
Relinquished By DatelTime Accepted By DatelTime r 'a 14 DaysJ
o 'o
Relinquished By DatefTime Accepted By Date(Time E m
m ° `7 Days
m
d 10 L
23)Seal/Locked By Date/Time Sealed/Lock Opened By DatelTime o .'
48 Hr
w c
24)comments FIGURE 6 - CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST FORM " d 'Other
c Add.Cost Will Apply

rr r r r r r ■r r wr rr rr r �r rr r� rr �r rr �r
NORTH CAROLINA GROUNDWATER SAMPLING SITE CHECKLIST
LOCATION/SITE Marshall Steam Station/Ash Basin Groundwater Monitoring PERMIT# NC0004987 SAMPLE DATE
SITE CONTACT FIELD CREW
WEATHER
PAGE 1 OF 1
MW-4 M'JV-4D MW-10S MW-10D MW-11S MW-11D MW-12S MW-12D MW-13S MW-13D MW-14S MW-14D
ACCESS TO WELLS
Access cleared into well
Access cleared around well
Tall grass or weeds-needs mowin
Road washing out/muddy/needs grading
Fallen tree blocking access
WELL SECURITY
Well found locked
Well found unlocked
WELL LOCK CONDITION
Lock in good condition
Lock rusted,difficult to open/needs replacing
Replaced damaged lock
WELL CASINGS
Casing in good condition
Damaged casing/still functional
Damaged casing/repair required
CONCRETE PADS
Pad In good condition
Minor cracks
Major cracks/broken/repair required
Undermined/washing out
Fire ants around concrete pad
WELL PROTECTIVE CASINGS
Casing in good condition
Damaged casing/still functional
Damaged casing/repair required
Broken hinge on protective lid
Wasp nest inside protective casing
Ants inside protective casing
W Ell CAPS
Well cap in good conditon
Damaged/needs replacement
Replaced damaged well cap
FLUSH MOUNT WELLS
Vault in good condition
Water inside vault
Vault bolt holes broken or stripped
Bolts stripped
Vault lid cracked or broken
WELL ID TAGS
Well tag in good condition
Well tag missing
Well tag damaged/illegible
Lacks required information-Driller Reg#
Lacks required information-Completion date
Lacks required information-Total well depth
Lacks regwred information-Depth toscreen
Lacks required information-Non potable tag
NOTE: FIGURE 7: GROUNDWATER SAMPLING SITE CHECKLIST

Tables
1
1
1
1
1
1
1
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1
1
1
1
1
1
1
1

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Table 1
Monitoring Well Information
Marshall Steam Station Ash Basin
MW-4 MW-41) MW-10S MW-101) MW-11S MW 11D MW-12S MW-12D MW-13S MW-13D MW-14S MW-14D
North(ft) 686,723.33 686,715.82 681.328.43 681,327.13 682,062.41 682,060.69 683,414.08 683,409.20 685,021.83 685,017.16 683,629.12 683,626.47
East(ft) 1,414,467.78 1,414,462.36 1,418,114.26 1,418,119.07 1,411,706.21 1,411,710.71 1,410,714.04 1,410,712.50 1,410,462.33 1,410,464.23 1,416,995.37 1,416,999.23
Top of PVC Casing 866.42 866.74 772.05 772.04 884.99 884.67 871.86 871.88 847.49 847.05 811.29 811.43
Elevation(ft)
Well Diameter 2- 2- 2- 2' 2^ 2- 2^ 2- 2- 2^ 2^ Z-
ell Stick-up(ft) 2.16 3.36 2.30 2.04 2.70 2.55 2.63 2.51 2.43 2.52 2.92 2.76
Type of Casing PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC PVC
Total Depth 50.20 64.18 29.21 87.47 54.12 93.10 25.10 98.30 20.88 48.55 46.87 62.60
below TOC(ft)
croon Length(ft) 10 5 15 5 15 5 15 5 15 5 15 5
croon Interval 40.20-50.20 59.18-64.18 14.21-29.21 82.47-87.47 39.12-54.12 88.10-93.10 10.10-25.10 93.30-98.30 5.88-20.88 43.55-48.55 31.87-46.87 57.60-62.60
(ft below TOC)
Notes:
1.ft indicates feet.
2.TOC indicates top of casing.
3.As-built well coordinates(NAD 83)and top of PVC casing elevations(NAVD 88)provided by Duke Energy.
4.Well diameter,type of casing,and screen lengths were obtained from Well Construction Records provided by Duke Energy.
5.Well total depth below TOC and well stick-up measurements provided by Duke Energy.
Page 1 of 1

1
Table 2
' Sample Parameters and Analytical Methods
Marshall Steam Station Ash Basin
PARAMETER UNITS ANALYTICAL METHOD
/n Sltu Parameters
Field pH pH Units Hydrolab
' Conductivity pmhos/cm Hydrolab
Temperature OC Hydrolab
' Water Level ft Water Level Meter
LaboratoiyAna"m
Antimony pg/L TRM/EPA 200.8
' Arsenic pg/L TRM/ EPA 200.8
Barium mg/L TRM/EPA 200.7
Boron mg/L TRM/ EPA 200.7
Cadmium pg/L TRM/ EPA 200.8
Chloride mg/L EPA 300.0
Chromium mg/L TRM/ EPA 200.7
' Copper mg/L TRM/ EPA 200.7
Iron mg/L TRM/EPA 200.7
' Lead pg/L TRM/ EPA 200.8
Manganese mg/L TRM/EPA 200.7
Mercury pVL EPA 245.1
' Nickel mg/L TRM/EPA 200.7
Nitrate(as Nitrogen) mg/L EPA 300.0
Selenium pg/L TRM/EPA 200.8
1 Sulfate mg/L EPA 300.0
Thallium pg/L TRM/ EPA 200.8
Total Dissolved Solids pg/L SM 2450C
' Zinc mg/L TRM/ EPA 200.7
Notes:
1.umhos/cm indicates micro-mhos per centimeter.
2.ft indicates feet.
3.pg/L indicates micrograms per liter.
4.mg/L indicates milligrams per liter.
' 5.TRM indicates total recoverable metals.
6.EPA indicates Environmental Protection Agency.
7.SM indicates Standard Method.
1
Page 1 of 1

Table 3
Sample Containers, Preservatives, and Holding Times
Marshall Steam Station Ash Basin
PARAMETER CONTAINERS PRESERVATIVES HOLDING TIMES
/n S/tu Parameters
1 Field pH In Situ None Analyze Immediately
Conductivity In Situ None Analyze Immediately
Temperature In Situ None Analyze Immediately
LaboratoryAna/yses
Antimony 500 ml HDPE pH<2 HNO3 6 months
' Arsenic 500 ml HDPE pH<2 HNO3 6 months
Barium 500 ml HDPE pH<2 HNO3 6 months
Boron 500 ml HDPE pH<2 HNO3 6 months
Cadmium 500 ml HDPE pH<2 HNO3 6 months
Chloride 500 ml HDPE Cool 4°C 28 days
Chromium 500 ml HDPE pH<2 HNO3 6 months
' Copper 500 ml HDPE pH<2 HNO3 6 months
Iron 500 ml HDPE pH<2 HNO3 6 months
Lead 500 ml HDPE pH<2 HNO3 6 months
' Manganese 500 ml HDPE pH<2 HNO3 6 months
Mercury 500 ml HDPE pH<2 HNO3 6 months
' Nickel 500 ml HDPE pH<2 HNO3 6 months
Nitrate(as Nitrogen) 500 ml HDPE Cool 4°C 48 hours
Selenium 500 ml HDPE pH<2 HNO3 6 months
Sulfate 500 ml HDPE Cool 4°C 28 days
Thallium 500 ml HDPE pH<2 HNO3 6 months
Total Dissolved Solids 500 ml HDPE Cool 4°C 7 days
Zinc 500 ml HDPE pH<2 HNO3 6 months
Notes:
1.ml indicates milliliter.
2.HNO3 indicates nitric acid.
' 3.HDPE indicates high density polyethylene.
' Page 1 of 1

' Appendix A - Boring Logs
and Monitoring Well
Construction Records

Form 25630 IR3 871 FORM M-26C REVISION 2
PAGES—OF �
DUKE POWER COMPANY
' CONSTRUCTION DEPARTMENT
PROJECTS
SOIL TEST BORING FIELD REPORT
! STARTING TIME
JOB NO. /-f 1 GROUND SUR ACE ELEV.
JOB NAME L ` �l S HRS.DRILLING��HRS.MOVING J ,
DATE 7' WEATHER INSPECTOR �• G�Se�I BORING NO._�W
' SAMPLING SCALE UD SOIL CLASSIFICATION AND REMARKS
IST " R06"
°
' ! W
5 �x
ui
— �U
F z
9 GT /IG . 5' c7 o
o G 3 ° E 70 /vs� c
z Jt
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_ W�
KK
r Z m
O�
r• a
' _ Zo
Z
aN
— O
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' =
5
Z 0
aM
zfo
BORING TERMINATED ETHOD OF ADVANCING BORING DEPTH
' BORING REFUSAL POWER AUGER TO
WATER TOB DEPTH HAND CHOP: W/MUD: W/WATER TO
WATER 24 HR: DEPTH ROTARY DRILL: W/MUD:W/WATER TO
WATER LOSSES DIAMOND CORE TO
CASING SIZE LENGTH

' Form 25630(F13.87) f FORM M-26C REVISION 2
Z--
DUKE POWER COMPANY PAGE2 OF
' CONSTRUCT DEPARTMENT
PROJECT
SOIL TEST BORING FIELD REPORT /
STARTING TIME !
' JOB NO. GROUNDSUPF CE ELEV.
JOB NAME HRS.DRILLING -'J�HRS.MOVING������ � ����
DATE L �� ' V9 WEATHER INSPECTOR 72- �KS£3'�/ BORING NO.LLP' —
SAMPLING SCALE UD SOIL CLASSIFICATION AND REMARKS
1ST3RD 6"
' - 5 cT
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wr N
CJ Q z
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BORING TERMINATED METHOD OF ADVANCING BORING DEPTH
' BORING REFUSAL POWER AUGER TO
WATER TOB DEPTH HAND CHOP: W/MUD:W/WATER TO
WATER 24 HR: DEPTH ROTARY DRILL:W/MUD:W/WATER TO
WATER LOSSES DIAMOND CORE TO
CASING SIZE LENGTH

' Form 25630 IR3.971 FORM M-26C REVISION 2
DUKE POWER COMPANY PAGEOF
' CONSTRUCTION DEPARTMENT
PROJECT AOLZ11i L
SOIL TEST BORING FIELD REPORT
�� STARTING TIME //
' JOB NO. GROUND SU DACE ELEV.
JOB NAME �Sf � iul'T'/LL HRS.DRILLINGHRS.MOVING
DATE to "�"�� WEATHER INSPECTOR -p- .�SD.� BORING NO.�
' SAMPLING SCALE UD SOIL CLASSIFICATION AND REMARKS
IST "1 3RD 6" O
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BORING TERMINATED METHOD OF ADVANCING BORING DEPTH
' BORING REFUSAL be, G� � � POWER AUGER 0 TD4f.fe
WATER TOB DEPTH 4lv O ' d^� ' 3d —TO —
WATER 24HR: DEPTH-3/.Z 5C9 —TO—
' WATER LOSSES --TO—
CASING SIZE LENGTH P

1
1 Form 25630 IR3 371 FORM M-26C REVISION 2
PAGE � OFA_
DUKE POWER COMPANY
1 CONSTRUCTION DEPARTMENT
PROJECT
TJl•'l .0 St64l.Cr
SOIL TEST BORING FIELD REPORT /
1STARTING TIME
JOB NO. �! GROUNDSU F C£ELEV.
JOB NAME fiY4se-4 Z04? E46C- -W(4L_S HRS.DRILLINGMRS.MOVING
''JJ'1 4
DATE Ln —3' - S-7 WEATHER INSPECTOR I>'�tCKS,n.�LBORING NO._�[5L
SAMPLING SCALE UD SOIL CLASSIFICATION AND REMARKS
1T V 0
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BORING TERMINATED METHOD OF ADVANCING BORING DEPTH
1 BORING REFUSAL POWER AUGER 0 T04V
WATER TOB DEPTH a r�'�`3 - —TO—
WATER24HR: DEPTH3/ '7 °� rl- S-S —TO—
WATER LOSSES —TO —
' CASING SIZE LENGTH
1

NORTH CAROLINA DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT FOR OFFICE USE ONLY
DIVISION OF ENVIRONMENTAL MANAGEMENT -GROUNDWATER SECTION
' P.O.BOX 27887-RALEIGKN.C.27811,PHONE[phone] Quad. No. Serial No.
Lat. Long. Pc
Minor Basin
WELL CONSTRUCTION RECORD Basin Code
' — — Header Ent. GW-1 Ent.
DRILLING CONTRACTOR �w�� �sf� �P C� STATE WELL CONSTRUCTION
' DRILLER REGISTRATION NUMBER PERMIT NUMBER: /'59 -
' 1. WELL LOCATION: (Show sketch of the location below) �f
Nearest Town: 17:>"Vc,e County:
'-& O Depth DRiLLING LOG
' (Road, Community, or Subdivision and Lot No.) From To Formation Description
2. OWNER -Tpy K>L /'v W�a Gti
ADDRESS -av
Street or Route No.)
' plc Zb'29 2
City or Town State , Zip Code ��- � �`�
3. DATE DRILLED '�J " USE OF WELL / 1/0^1 ?��Pic/C 47 � d
�4. TOTAL DEPTH � •(� CUTTINGS COLLECTED 9-res ❑ No
5. DOES WELL REPLACE EXISTING WELL? ❑ Yes 9-11-0
6. STATIC WATER LEVEL: FT. D above TOP OF CASING,
' Ce FT. ABOVE
ow
TOP OF CASING IS LAND SURFACE.
7. YIELD (gpm): 'k/�_ METHOD OF TEST �!
'8. V' TER ZONES (depth):
9. CHLORINATION: Type154 Amount �J
�10. CASING: Wall Thickness If additional space is needed use back of form.
Depth Diameter or Weight/Ft. Material LOCATION SKETCH
From 6) To 574 Ft.Z"�l-2 �uC (Show direction and distance from at least two State Roads,
' From To Ft. or other map reference points)
From To Ft.
'1 1, GROUT:
Depth Material Method
From _ To 3r, Ft.
From To Ft.
'12. SCREEN:
Depth Diameter
Slot Size Material
From�To� � �i
Ft.� in._01p in.
From To Ft. in. in.
From To Ft. In. in.
13. GRAVEL PACK:
Depth Site Material
From 9�5. S To 4q.4 Ft.
' From To Ft.,
14. REMARKS: Tq.l/'T--�' !
' 1 DO HEREBY CERTIFY THAT THIS WELL WAS CON TRUCTEfZ IN ACCORDANCE WITH 15 NCAC 2C, WELL CONSTRUCTION
STANDARDS, AND THAT A COPY OF THIS RECORD S BEEt WROVIDED TO TH WELL OWNER. �✓
SI NATURE OF CONTRACTOR OR AGENT DATE
' GW-1 Revised 11/84 Submit original to Division of Environmental Management and copy to well owner.

' N. C. Department of Human Resources
Division of Health Services
' WELL COMPLETION RECORD
' MPLETE ALL INFORMATION REQUESTED BELOW FOR EACH WELL INSTALLED,AND RETURN FORM TO THE
DEPARTMENT OF HUMAN RESOURCES, SOLID AND HAZARDOUS WASTE MANAGEMENT BRAN
P. O. BOX 2091,RALEIGH.N.C. 27602
NAME OF SITE: PERMIT NO.:
ADDRESS: OWNER(print)::
' DRILLING CONTRACTOR:., REGISTRATION NO.:
c %Af�['r A ?� �� dia. �� in. Grout from �r� to ? ft. -dia.
Casing Type: i�yy Depth:
Casing Depth: fromy to�ft.-dia. in. Bentonite Seal: from z to 35 S ft. -dis.
Screen Type: 7'L140<L -'74tAAc'-22 0-2L dia. -' in. Sand/Gravel PK: from 3 S.S to_ 2 ft. -dia. K
' Screen Depth: from ^' ' to '-% 4 ft. -dia. L in. Total Well Depth: from to J h. -dia.
Static Water Level::, 3 feet from top of casing � Date Measured ,T / �
Yield(gpm): _lfl_Method of Testing: ( 14 Casing is Z- c-,> feet above land st
' DRILLING LOG LOCATION SKETCH
DEPTH (show distance to numbered roads,or other map reference pc
FROM TO FORMATION DESCRIPTION
�iCL � ,�c�.e , •
1
1
1
1
' T !ARKS:
/VF (lex �a�iiC../� �//7"�� ,�f��•/C�
DATE: �- / ° �� SIGNATURE: `''

' Form CI-iIP Revision 0 Pace
AS-BUILT IllSTA[J. imi szTm
Instrument No. `M l�!- Station
Offset ✓�/,�
' BY _�. 7 [�4:r.1 Date
' AloT ro
¢_x4 sre�G
c�
i5
AC S�i1,�1�flr
'1,�dlvrl6
1 �
�' d• / SL07'� �'• �e'l. C.
. N L
' @ 49.
1

S&ME, Inc. 1.BORING AND SAMPLING IS INA CCORDANCE
tS&ME
WITHASTAYD-1586.2.PENETRATION(N-VAL UE)IS THE NUMBER OF
1 ENGINEERING • TESTING Telephone: BLOWS OF 140 LB.HAMMER FALLING 30 IN REQUIRED TO
ENVIRONMENTAL SERVICES Fax: DRIVE 1.4 IN.I.D.S.AAJPLER I FT
Project: Duke Power-Marshall Steam Station-Ash Basin Monitor Well Installation Boring No. MW-4D
' Location: Terrell,North Carolina Number: 1356-06-834 Sheet No. 1 of 2
Boring Depth(ft): 60.5 Elevation(ft): TBD Driller: Larry Shrader,NC Date Drilled: 10/12/06
Cert.No.3349
' Logged By: Courtney Withers Water Level: 25.5 ft his at 24 hrs Drilling Method: 4''A"H.S.A.
Elev. Depth Lith-' Material Description Well Penetration Resistance(Blows/Foot)(Feet) (Feet) ology Construction 0 50 100
FILL: Firm,Red,Slightly Clayey,Silty,Coarse to Fine
SAND With Rock Fragments
1
13
5
SAPROLITE: Loose,White,Brown,and Orange, 10
' 10 Micaceous,Silty,Very Fine SAND
' SAPROLITE: Loose White and Orange,Micaceous
• ,
Coarse to Fine SAND l0
' 15
SAPROLITE:O E. Fum,Orange,Brown,and White,
Micaceous,Coarse to Fine SAND ]0
20—
z
0
zz
12
' 25 SAPROLITE: Firm,Brom,White,and Red,Micaceous,
g Silty,Very Fine SAND 1
Z
a
J SAPROLITE: Firm,White and Orange,Coarse to Fine
J
SAND
SAPROLITE: Stiff to Very Hard,Brown,White,and
30 11
' Orange,Micaceous,Very Fine Sandy SILT With Coarse
Sand Lenses
x
o
0
J
z
Z
0 1]
m

' S&ME,Inc. 1.BORING AND SAMPLING IS INA CCORDANCE
tS&ME
IVITHASTM D-1586.
2.PENETRATION(N-VAL UE)IS THE NUMBER OF
ENGINEERING • TESTING Telephone: BLOWS OF 140 LB.IFAMMERFALLING 301N.REQUIRED TO
1 ENVIRONMENTAL SERVICES Fax: DRIVE 1.41N.ID.SAMPLER I FT.
Project: Duke Power-Marshall Steam Station-Ash Basin Monitor Well Installation Boring No.MVV-4D
Location: Terrell,North Carolina Number: 1356-06-834 Sheet No. 2 of 2
Boring Depth(ft): 60.5 Elevation(ft): TBD Driller: Larry Shrader,NC Date Drilled: 10/12/06
Cert.No.3349
' Logged By: Courtney Withers Water Level: 25.5 ft his at 24 hrs Drilling Method: 4'/."H.S.A.
Elev. Depth Lith- Well Penetration Resistance(Blows(Foot)
(Feet) (Feet) ology Material Description Construction
0 50 100
19
' 40
Q
52
45
' 501
PARTIALLY WEATHERED ROCK: When Sampled ® 2
' Becomes Very Dense,Black and White,Medium to Very
50—
k
0 Fine SAND
-AAuger Refusal at 50.5 ft his
BEDROCK: Fine-Grained Biotite Gneiss
' 55
zz
Boring Terminated at 60.5 ft his
' g 60 See Attached Core Picture for Recovery and RQD
a
Z
N
' m
S
6
J
Q
WSJ
J
z
2
0:
O
m

MONITORING WELL CONSTRUCTION
_ MEWELL ID: MW-4D TOTAL DEPTH: 60.5 ft bls
S&ME PROJECT AND NO: WELL USE/TYPE: INSTALLATION DATE:
Marshall Steam Station,1356-06-834 Monitoring 10/12/2006
DRILLING CONTRACTOR: DRILLER AND LICENCE NO.: DRILLING METHOD:
' S&ME,Inc. Larry Shrader,3349 4.25 H.S.A.
24-HR WATER LEVEL: NORTHING: EASTING: TOP OF CASING ELEV. GROUND SURFACE ELEV.:
25.5 ft bls TBD TBD TBD TBD
PAD TYPE:
Stickup(ft): -3.0 ft 2'x2'Concrete
PROTECTIVE CASING:
Depth BLS 4"x4"Lockable Steel
0 it-Top of out t CASING TYPE:
2-inch Sch.40 PVC
CASING INTERVAL:
0 to 55.5 ft bls
SCREEN TYPE:
2-inch 0.010 Slot Sch.40 PVC
SCREEN INTERVAL
55.5 to60.5Itbls
GROUT TYPE:
Neat Cement
GROUT INTERVAL
51.5 ft-Top of Seal 0 to 51.5 ft bls
' SEAL TYPE:
53.5 ft-Top of Filter Pack Bentonite
SEALINTERVAL:
' 55.5 ft-Top of Screen 51.5 to 53.5 ft bls
AL FILTER PACK:
#3 Filter Sand
FILTER PACK INTERVAL:
53.5 to 60.5 ft bls
' Screened DEVELOPMENT:
Interval Purged-35 Gallons
5 feet NOTES:
' T TBD-To Be Determined
60.5 ft-Bottom of Screen
60.5 ft -Total Depth For Lithologic Information See
Attached Boring Log
1

WELL CONSTRUCTION RECORD
(MW-4D)
North Carolina-Department of Environment and Natural Resources-Division of Water Quality-Groundwater Section
' WELL CONTRACTOR(INDIVIDUAL)NAME(prix Larry Shrader CERTIFICATION N 3349
WELL CONTRACTOR COMPANY NAME S&ME,Inc. PHONE N 704-523-4726
STATE WELL CONSTRUCTION PERM ITN ASSOCIATED WQ PERMIT$$
(if applicable) (if applicable)
1. WELL USE(Check Applicable Box):Residential❑ Municipal/Public❑ Industrial❑ Agricultral❑
Monitoring Recovery❑ Heat Pump Water Injection❑ Other❑ If Other,List Use
' 2. WELL LOCATION: Topographic/Land setting
Nearest Town: Terrell County Iredell ❑ Ridge ❑ Slope ❑ Valley)Q Flat
Marshall Steam Station (check appropriate box)
(Street Name.Numbers.Community.Sudivision,Lot No..Ztp Code) Latitude/longitude of well location
' 3. OWNER: Duke Power (degreevrninutes/seconds)
Address 526 South Church Street htitudeilongitude source:❑GPS[]Topographic Map
(Street or Route No.) (check box)
Charlotte NC 28202 DEPTH DRILLING LOG
City or Town Stale Zip Code From To Formation DLscrpition
[phone] 0 to 9 Fill
Area code-Phone Number 9 to 13 Silty Very Fine Sand
4. DATE DRILLED 10/12/2006 13 to 24.5 Coarse to Fine Sand
5. TOTAL DEPTH 60.5 24.5 to 28 Silty Very Fine Sand
6. DOES WELL REPLACE EXISTING WELL? YES❑ NOX 28 to 28.5 Coarse to Fine Sand
7. STATIC WATER LEVEL Below Top of Casing: 28.5 ft. 28.5 to 48.5 Very Fine Sandy Silt
(Use"+"if Above Top of Casing) 48.5 to 50.5 P W R
8. TOP OF CASING IS -3 FT.Above Land Surface' 50.5 to 60.5 Bedrock
' `Top of casing terminated attor below land surface requires a
variance in accordance with 15A NCAC 2C.0119.
9. YIELD(gpnl) n/a METHOD OF TEST n/a
10. WATER ZONES(depth): n/a
' LOCATION SKETCH
11. DISINFECTION:Type n/a Amount n!a Show direction and distance in miles from at least
12. CASING: Wall Thickness two State Roads or County Roads.Include the road
' Depth Diameter or Weight/Ft. Material numbers and common names.
From 0 To 55.5 Ft. 2-mch Sch.40 PVC pr �r
From To Ft.
From To Ft. '10
{�
13. GROUT: Depth Material Method
From 0 To 51.5 Ft. Neat Cement Pour
From 51.5 To 53.5 Ft. Bentonite Pour
14. SCREEN: Depth Diameter Slot Size Material �.
From 55.5 To 60.5 Ft. 2-inch in. 0.01 in. PVC
From To Ft. in. in.
15. SAND/GRAVEL PACK: t•, -- = ' r
' Depth Size Material
From 53.5 To 60.5 Ft. 0$3 Silica Sand
From To Ft.
16. REMARKS:
DO HERE BY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH 15A NCAC 2C,WELL
CONWRUCTIONSTAN S,AN THT A COPY OF THIS RECORD HAS BEEN PROVIDED TO THEW WELL OWNER
1 /. ( -1c v
SIGNATURE OF PERSON CONSTRUCTING THE WELL DAYE
Submit the original to the Division of Water Quality,Groundwater Section,1636 Mail Service Center-Raleigh,NC
1 27699-1636 Phone No.[phone],within 30 days. GW-I REV.07/2001

1
OMACTEC
-- — engineering and constructing a better tomorrow
1
August 26,2010
' Mr.Jim Lindquist,Engineer
Duke Energy Corporation
Marshall Steam Station
' 8320 East NC Highway 150
Terrell,North Carolina 28682
Subject: Ash Basin Monitoring Well Installation Report
Marshall Steam Station
Terrell,Catawba County
MACTEC Project No.:6228-10-5284
' Dear Mr. Lindquist:
' The purpose of this report is to present the results of monitoring well installation and evaluation activities
conducted between July 26 and August 13, 2010 at the above-referenced site (Figure 1). The well
installation and testing was conducted in general accordance with the requirements outlined in the Ash
1 Basin Groundwater Monitoring Well Installation Project Work Summary (Work Summary) provided by
Duke Energy (Duke) and dated May 21, 2010. The following Figures, Tables and Appendices have been
included:
Figure 1: Site Location Map
' Figure 2: Monitoring Well Location Map
Table 1: Summary of Well Construction Details
Table 2: Summary of Slug Test Results
Appendix A: Rock Core Photographs
' Appendix B: Soil Boring Logs
Appendix C: Monitoring Well Records
Appendix D: Monitoring Well Development Records
Appendix E: Photographs of Completed Well Pairs
Appendix F:Slug Test Data
Five Type 11 groundwater monitoring well pairs(a total of 10 wells) were installed between July 26 and
' August 6,2010 at the locations shown on Figure 2. The well locations were pre-determined by Duke and
marked in the field with wooden stakes and survey flagging. Each well pair consisted of one shallow well
(using the identifier "S") set into overburden soils and one deep well (using the identifier "D) set into
bedrock. Standard Penetration Testing (SPT) and split-spoon sampling was performed at five-foot
intervals from the surface to bedrock during installation of the deep well at each well pair. Soils observed
in the split-spoon samples were logged in the field in accordance with the Unified Soil Classification
System (ASTM D2487/D2488). Upon auger refusal, each deep boring was extended a minimum of 10
' feet into competent bedrock using HQ-sized rock core techniques.
1 MACTEC Engineering and Consulting, Inc.
2801 Yorkmont Rood, Suite 00 •Charlorte, NC 28208 • Phone. [phone] • Fa, 704 357 8638
License Number F-0653 www.mactec.com
l.,..rn,nm,"ri,fl

' Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Stearn Station
Terrell,Catawba County,North Carolina
MACTEC Project 6228-10-5284
Rock core samples were logged in the field in accordance with the Field Guide for Rock Core Logging
' and Fracture Analysis established by Midwest Geosciences. As specified in the Work Summary, split-
spoon sampling and rock coring were not performed during installation of the shallow wells.
Photographs of rock cores obtained during installation of the five deep wells are included as Appendix A.
Shallow wells were installed using 4.25-inch ID hollow stem augers; deep wells were installed using
4.25-inch ID hollow stem augers to refusal, then HQ-sized rock core approximately 10 feet into
competent bedrock. Total depths for shallow wells ranged from 18 feet below ground surface (bgs) in
' MW-13S to 52 feet bgs in MW-11S. Total depths for bedrock wells ranged from 46.5 feet bgs in MW-
13D to 95 feet bgs in MW-12D. Shallow wells were constructed with 15 feet of 0.010-slot 2-inch
diameter PVC well screen and riser with well screens set so that 10 feet of screen is below the static water
table at the time of installation. Deep wells were constructed with 5-foot well screens set across low-
RQD bedrock core intervals in the deep wells to facilitate maximum water flow through each well. Filter
1 sand was placed in the annular space between the augers and the casing from the total depth of the well to
approximately 2 feet above the screen. A bentonite seal was placed on top of the filter pack and the well
was grouted to the surface. Please note that shallow well depths were typically adjusted after installation,
but prior to placement of bentonite, to account for rise in hydraulic head observed at each location. In
these instances, additional filter sand was placed between the bottom of the borehole and the bottom of
the well. Each well was completed with a stand-up well cover that extends approximately 30 inches
above-grade and set into a 2-foot by 2-foot concrete pad. Monitoring well ID tags were secured to the
outside of the stand-up covers and well numbers were etched into the wet concrete pad. Soil boring logs
and well construction records for the 10 monitoring wells installed in during this work have been included
' as Appendix B and C,respectively.
Subsequent to installation,each well was developed using a submersible or bladder pump to remove fine-
' grained material. In general, each well was purged until the development water appeared visually clear,
at which time,water quality parameters(temperature, pH, conductivity and turbidity)were recorded in 5-
gallon increments until turbidity readings were less than or equal to 10 NTUs. Purge water generated
during well development ranged from 60 gallons to 140 gallons and was discharged to the ground surface
adjacent to each well. Please note that water quality parameters were not recorded for well MW-12S.
However, 140 gallons of water were purged from the well during well development. Monitoring well
development records are included as Appendix D. Photographs of the completed monitoring well pairs
1 are included as Appendix E.
2

Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
' Terrell,Catawba County,North Carolina
MACTEC Project 6228-10-5284
Rising head slug tests were performed on each well on August 12 and 13, 2010. Prior to the tests an In-
situ Level Troll pressure transducer and 2-foot long stainless steel slug were placed into the well. The
water level in the well was recorded as a"Background"test until the well recharged to within 90%of the
original measurement. Subsequent to normalization, the rising head test was started, the slug was
removed and the change in head versus time was measured using a Rugged-reader data logger. Slug test
' data was analyzed using Aqtesolv software to estimate hydraulic conductivity in each well. A summary
of slug test data is presented in Table 2. Copies of raw data generated during completion of the rising
head slug tests are included in Appendix F.
Please contact the undersigned at [phone], if you have questions or comments concerning this
project.
Sincerely,
MACTEC ENGINEERING AND CONSULTING,INC.
1 I x
Mark P.Filardi,P.G. Robe ster, .;F.
Senior Geologist Principj
fi
Enclosures
NIntcE;s.°��
cc: William M.Miller,PE,PLS,S&ME
for P. 0 2_�
With PerMiSM011
1
1
' 3

i
1 Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
1
1
i
1
' FIGURES
1
1
1
i
1
i
1
1

1
1 `( * � 11{ 1 1L I �•4;\ - f pl}„lam•-� 4 aj"� �.'.-._ ���/ 3" R. 1n �' C:-
�=.t
pp��' ''` "+,�, T� fin s: a. ► �t
� 1`1 S nJi i '�•y' ! 4.' 4; r - ;� �... ^�t K•I��* `j2�''y ���• rc
- ��� 'R_ f ,.�.� � 6' �a:F+- !: C� � t� �u � '!•.'al4„,. h ,�,o-.M1„��i ,�„fe
4�l z
i.. �••� �'�'� J Cid ..� Citi
Y t
t /
SITE LOCATION, ,
'Z Ex • lllll` �r ! `� !
r 1
L
7. .. .
Source: USDA-NRCS Digital Raster Graphic Mosaic for Catawba County.NC.dated 2005.
N
Q Site Location
' 0 1,000 2,000 4,000 6,000 8,000
mi Feet
MACTEC SITE LOCATION MAP
DUKE ENERGY
MARSHALL STEAM STATION
CATAWBA COUNTY, NORTH CAROLINA
PREPARED DATE CHECKED DA E JOB NUMBER FIGURE
By O By -Lo-ro 622810-5284 1

1
MW-13S
MW 130
- I
� MW-74S
MW-12S MW-14D
' MW-12D }
141 t
' - MW-11S
s
MW-10S
• J MW-10D
�.
SourceMecklenburg County Geographic Information Systems(GIS),dated 2009.
' N
Site Location A Monitoring Well Location
1
0 625 1,250 2,500 3,750 5,000
' Feet
rMACTEC MONITORING WELL LOCATIONS
� DUKE ENERGY
' MARSHALL STEAM STATION
CATAWBA COUNTY, NORTH CAROLINA
PREPARED DATE CHECKED `� DATE JOB NUMBER FIGURE
BY r, P - o BY Q Vr g yu- to 6228-10-5284 2

1
1 Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
i
i
1
1
1
iTABLES
1
i
1
1
1
1
1
1
1

Table 1
Summary of Well Construction Details
Marshall Steam Station,Terrell,North Carolina
Coordinates Construction Details Measured Details
Well Number Drilling Method Well Diameter Borehole Depth Well Depth(ft Screen Interval Well Depth Depth to Water Water Column
Latitude Longitude
(I.D.in.) (ft bgs) bps) (ft bgs) (ft below TOC) (ft bebw TOC) Thickness(ft)
MW-10S 35.36.36690 80'58.42864 Hollow-stem Auger 2 35.0 27.0 12-27 29.44 16.64 12.80
MW-10D 35'36.36670 80'58.44289 HSA1Rock Core 2 85.4 85.4 80.4-85.4 87.69 16.23 71.46
MW-11S 35'36.47900 80'58.76251 Hollow-stem Auger 2 55.0 52.0 37-52 54.38 43.77 10.61
MW-11D 35'36.47871 80`58.76130 HSAIRock Core 2 90.5 90.5 85.5-90.5 93.32 43.40 49.92
MW-12S 36'36.42126 80`58.28465 Hollow-stem Auger 2 40.0 22.0 7-22 25.32 14.28 11.04
MW-12D 35`36.43905 80'58.31988 HSAIRock Core 2 106.4 95.0 90-95 98.59 15.21 83.38
MW-13S 35.36.50564 80.58.42262 Hollow-stem Auger 2 25.5 18.0 3-18 21.12 5.70 15.42
MW-13D 35'38.50991 80'58.43588 HSA/RockCore 2 46.5 46.5 41.5-46.5 48.61 3.59 45.02
MW-14S 35.36.39923 80.58.30479 Hollow-stem Auger 2 49.0 43.0 28-43 47.13 36.36 10.77
MW-14D 35-36.39410 80.58.31292 HSA/Rock Core 2 60.0 60.0 56-60 62.85 36.98 25.87
ft bgs=feet below ground surface Prepared bylDate: J.q-,•
Checked bytDate:

TABLE 2
Summary of Slug Test Results
Marshall Steam Ststloa
MACTEC Eegineeriag and Cassdtiag.lea
MACTEC Project Na.622610-5294
Well Diameter Borehole Depth Well Depth Beaten Interval Well Depth Depth to Water Water Column TOP of ScrsRisleg Head Test Results In ass/seen
ess Average K
Slag Test ID Tess Type Test Date (I.D.in.) (B bp) (fl bp) (R bp) (R below TOC) (it below TOC) Thickness(Iq (R below TOC) Boonvie r di
Rpaper ![vorslev ew/nae
MW-IOS Rising Read 8116/2010 2 35.0 27.0 12 -27 29.44 16.64 12.80 14.44 7.49E-04 9.22E-04 1.36E-03 I.OIE-03
MW-IOD Ruing Head 8/162010 2 85.4 85.4 80.4 -85.4 87.69 16.23 71.46 82.89 1.13E-04 1.19E-04 1.16E-04
MW-11S Rismg Head 5!162010 2 55.0 52.0 37 -52 54.38 43.77 10.61 39.38 1.54E-03 1.29E-03 2.05E-03 1.62E-03
MW-IID Rising Head 8/162010 2 90.5 90.5 85.5 -90.5 93.32 43.40 49.92 88.32 3.43E-05 - 3.45E-05 3.44E-05
MW-12S Ranag Head 5/162010 2 40.0 22.0 7 - 22 25.32 14.28 11.04 10.32 1.56E-03 1,7913-03 1.45E-03 6.60E-03
MW-1213 ItrntgHead 8/162010 _ 2 108.4 95.0 90 -..95 98.59 15.21 83.38 93.59 1 34F,(M - 1.30E-04 1,32E-04
MW-13S Ristng Head 8/162010 2 25.5 18.0 3 - 18 21.12 5.70 15.42 6.12 2.40E-04 - 2.73E-04 2.56E-04
MW-1313 RistngHead 8/162010 2 46.5 46.5 41.5 -48.5 48.61 3.59 45.02 43.61 792E-04 - 7.05E-04 7.48E-04
MW-14S RungHead 8/16/2010 2 49.0 43.0 28 -43 47.13 36.36 10.77 32.13 957E-04 8.91E-04 I.OIE-03 9.52E-04
MW-1413 Rising Head 8/162010 2 60.0 60.0 55 -60 62.85 36.96 25.87 57.85 602E-04 648E-04 6.25E-04
Notes:
I-Dogan method applicable to wells screened across the waser table
2-Barka-Black is a fractured rode method and was not used on saprolite wells
R by-fee below ground surface
TOC-Top of casing
Prepared by. CHH Dau: 824/10
Checked by./3(0- Data.V-2y-IO

Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell,Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
' APPENDICES
1
1

Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
r
APPENDIX A
ROCK CORE PHOTOGRAPHS
1
1
1

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Photo / Core

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' Photo 3: MW-1 OD Core Run#2 75.2—80.4 ft.
r
w
' Photo 4: MW-IOD,Entire Core including Core Run#3 (80.4—85.4 ft.)

1
or
Rte° �sr s
1
Photo 5: MW-14D,Core Run#1 (50.0—51.3 ft.)
MOM •
1
. ..e,.... .
Photo 6: MW-14D,Core Run#2(51.3—56.2 ft.)

1
4•
i 2 6 7 8 9
Photo 7: MW-14D,Core and Run#3 (56.2—60.1 ft.)
.x
1
1 _ _
Photo 8: MW-11D,Core Run#1 (80.5—80.8 ft.)

9
U
Photo 9: MW-11D,Core#2(80.8-85.6 ft.)
� 1
Y
i
i 2 3
1 ,
' Photo 10: MW-11D,Core Run#3 (85.6-90.6 ft.)

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' Photo 13: To of core Run#3 101.5- 106.4 ft.
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tPhoto 14: Bottom of Core Run#3(101.5- 106.4 ft.)

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Photo . 6.0 41

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Photo 19: MW-13D,Bottom of Core Run#2(40.2—45.1 ft.)
r
r
r
r Photo 20: MW-13D,Entire Core including Run#1 (36.0—40.2 ft.),
Run#2(40.2—45.1 ft.)and Run#3 (45.1 —46.4 ft.)
r
r

' Ash Basin Monitoring Well Installation Report August 16,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
1
APPENDIX B
SOIL BORING LOGS
1

1
D L E SAMPLES
' pSOIL CLASSIFICATION F L 1 N-COUNT
T G L D I.
E V l'
HE KEN'SYMBOL SHEET FOR EXPLANATION Of N L P c
(ftl SYMBOLS AND ABBREVIATIONS BELOW D (ft) T E v REMARKS
0 Red to orange clavey silt(ML);dry.
1 5
Clay content increase at 6'
1
10
----------------------
Tan clay(CH);High mica content
15 Moist at 15'
I
20
23
r
r 30
35 Boring terminated at 35.0'BGS
' o
h
c.
1 �
40
J
J
Z
' O
45
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
' REMARKS: 42W B-Zo-lo V1'ELL ID: MW-10S
July 26,2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROD.NO.: 6228-10-5284 PAGE I OF 1
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER MACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER. r�°
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

L E SAMPLES
E
6 E
P SOIL CLASSIFICATION L II
T N-COUNT
T E V
H E Y
SEE KEY SYMBOL.SHEET FOR EXPLANATION OF N N P
SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E
REMARKS
Red to tan('-SYR 518)silty finc sand(SM)
SS-1 x 3-3-5
Strong brown(7.5YR 4/6)silly finc sand(SM) Micaceous
10 SS-2 2-4-4 Quartz mineral banding(9.5'-10.0')
p
Strong brown(7.5YR 4!6)silty clay(CL) SS-3 X 3-2-' Micaceous;Mafic mineral banding
15
Pale brown(10YR 6/3)silty fine sand(SM) '
SS-4 X 2-34 Micaceous;Coarse quartz and(19-20�
20
Flowing sand(22'-23')
Gravish brown(I OYR 52)silty fine sand(SM) Quartz banding with trace Fe stained
SS-5 x 2-2-4 gravel
25
SS-6 x 1-2-3
30 Vertical quartz hand with Fe staining from
29.5'-30.0'
SS-7 ---4
35
o
Yellow(I OYR 7/6)clayey sand(SC)
SS-8 2-4-6
40 X Coarse quartz sand(39.5'40.0')-possible
top of PWR
L 45 SS-9 2-34
DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: pf �S.Z.(),to WELL ID: NM'-IOD
July 27,2010
THIS RECORD IS A REASONABLE INTERPRETATION TROJ.NO.: 6228-10-5284 PAGE I OF
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER " M ArTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE,
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
' P SOIL CLASSIFICATION E L l l N-COUNT
P
3 E V D Y.
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N P o s
(H SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E 1 MAIZXS
4 Yellow(10YR 7/6)clayey sand(SC) _
Subvertical quartz banding and Fe staining
SS-10 1-3-3 throughout
Brownish yellow(IOYR 618)clayey sand(SC) Coarse quartz sand and abundam Fe
SS-II 3-5-7 staining
Vern dart,grayish brown(2.5Y 312)PWR Biotite layering(60');Fe staining
' SS-12 7-14-19
Yellow(I OYR 718)PWR Quartz,bioritc,k-feldspar
t, SS-13 10?2-27
Brownish vel low(I OYR 618)clayey sand(SC)
SS-14 X 5-10.17
' Olive yellow(2.4Y 6/6)PWR ///� SS-1 S 502 Quaff mica,trace Fe staining
75 Biotite Gneiss;strong,light gray(1 OYR 7/1)oxidized, RC-16 RQD:046 Refusal at 75.0'
gneissic,laminated,slightly decomposed,slightly RC-17 RQD:24%
disintegrated,unfractured,conformable Fracture zone(76.4'-76.5')
Shwr zones(76.8',77.151
Brief H2O loss(79.0'-79.6)
80
Biotite Gneiss,very weak,dark reddishbrown(5YR 3/4).
1 gneissic,laminated,moderately disintegrated,moderately to RC-1, RQD:28°k Hard drilling(80.7)
intensely 6actured;90.9'-hard drilling
a
' U
85
Boring terminated at 85.5'BGS
U
i=
a
r go
' DRILLER: Abel McGuire-AE Drilling SOIL,TEST BORING RECORD
EQUIPMENT:CME-750
METHOD: HSA/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
' REMARKS: Rnc WELL ID: MW-101)
July 27,2010
' THIS RECORD IS A REASONABLE INTERPRETATION 11PROJ.NO.: 6228-10-5284 PAGE 2 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS ATACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE. OvA
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
E
P SOU-CLASSIFICATION E L ' N-COUNT
C, E DT
TE v Y
H E
SEE KEY SYMBOL N
SHEET FOR EXPLANATION OF N P
SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E V
-1
(ft) �1 REMARKS
0 Red (2.5YR 5/8)clayey silt(ML) On
' S
Yellow(2.5YR 8/6)to light yellowish brown(2.5Y 613)silty Dr\
fine sand(SM)
10
15
20
2i
. ...... ...
30
35
' o
03
Uq
O 40
Yellow(I OYR 518)to light gray(I OYR 702)clayey fine sand Increasing mica content
(SW)
Moist at 45'BGW
45
DRILLER- Abel McGuire-AE Drilling SOIL TEST BORING RECO"
EQUIPMENT. CME-750
METHOD: HSA --------
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: R(f- WELL ID: MW-11 S
July 30,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE I OF 2,1
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER
LOCATIONS AND AT OTHER TIMES MAY DIFFER. 4(M AcTEC
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

1
D L E SAMPLES
E
P SOIL,CLASSIFICATION E E ) T N-COUNT
T E `. E Y
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N N P c
(ft) SYMBOLS AND ABBREVIATIONS BELO%V. D (11) T E _. REMARKS
45 Yellow(10YR 518)to light gray(10YR 72)clayey tine sand
5' Boring terminated at 55.0'BGS
60
65
' 70
75
80
1 f`1
a
V,. 85
L
z
c
' 0 90
DRILLER: Abel McGuirc-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: AOf SjY�to WELL ID: MW-11S
1
July 30,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROD.NO.: 6228-10-5284 PAGE 2 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER 'MACTEC
LOCATIONS AND AT OTHER TIMES MAYDIFFER. -�
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

1
D L E SAMPLES
P SOIL CLASSIFICATION E' L 1 T N-COON I) E D Y
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N N P `c
(8) SYMBOLS AND ABBREVIATIONS BELOW. D (fi) T F N c REMARKS
0 Red(2.5YR 5'81 clay w At(NIL) Some mica;do
'
SS-1 Z 5-8-11
5
'
Yellow(2.5YR 8!6)fine sand(SW) Dry.thinly laminated with quartz and Fe
SS-2 2-3-3 stained bands
10
1
Light yellowish brown(2.5Y 613)silty fine sand(SM) Micaceous
SS-3 2-3-4
IS
1 ,2
20 SSA1-24gravel sired white clay(19.5'-20.0')
Increasing secondary mineralization(white
SS-5 X 3-3-5 clay)
25
' 30 SS-6 3-3-5
' Increasing Fe staining
35 SS-7 X 3-3-4
o
c
Yellow(10YR V8)clayey fine sand(SC) Nlicaceaus
SS-8 4-5-4
40 Moist at 40.0'
:7
z
m
o SS-9 3-3-4
45
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSANQ Rock Core
I-IOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: g/f C(Z,'Ilj WELL ID: MW-1 ID
VV�� O July 29,2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 1 OF 3
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER
M1-1%C
LOCATIONS AND AT OTHER TIMES MAY DIFFER. ��,.J�
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

1
D L F. SAMPLES
' E SOIL CLASSIFICATION GEL
E I r NrOUrrr
P
T E V E Y
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N P o °
tftt SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E ti N REMARKS
45 Yellow(I OYR 7.r8)clayey fine sand(SC)
' Gray(7.5YR 511)clayey medium to fine sand(SC)with \1 aier dripping from spoon
quartz gravel SS-10 3-5-5
' Light gray(IOYR 7i2)£me sand(SW);thinly laminated Some Fe staining
SS-11 X 1'--21-37
c�
SS-12 37-50/4
SS-L X 5014
6i
7 SS-14 50.3 Light gray(IOY 711);PWR;foliated
. . (69.5'-70.0')
SS-15 46-49-504
5
ISS116 5013
gri
Quartz Schist;weak,bluish black(Gley2 2.5/1 OB),schistose, RQD:0% Refusal at 80.5'BGS
' laminated,moderately decomposed,slightly disintegrated, RQD:0% Hard drilling from 80.8'-84.3';easier to
moderately fractured 85.8'
Bedding plane fractures every 0.1-0
inches from 81.2'-81.9'
c
1 �
85
Bedding plane fractures with Fe staining at
v RQD:340; 85.9',87.5'and 89.7
Strong,black(Gleyl 2.51N),gnessic,thinly bedded slightly Fracture zones at 86.1'-86.5',86.9'-87.1'
' decomposed,slightly disintegrated moderately fractured and 88.0'-88.2'
m Near horizontal joint.,at 86.4',86.7,86.9',
0 87.6',88.4,89.2'and 89.3'
nL 90
' DRILLER: Abel McGuire-AE Drilling SOI,TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA/NQ Rock Core
HOLE DIA.: 0 PROJECT: Duke Energy Marshall Steam Station
�Qp $
REMARKS' (7A WELL 1D: MW-IID
July 29,2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROJ. NO.: 6228-10-5284 PAGE 2 OF 3
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER OMACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

1
D L E SAMPLES
1 E
P SOIL CLASSIFICATION E E 1 N -COUNT
T F D YFI SEE KEY SYMBOL SHFFT FOR EXPLANATION OF N N P fc
'YMBOLS AND ABBREVIATIONS BELOW. D (fl) T E: = c M REMAIZ-KS
1 Boring terminated at%NAGS
1 95
100
1
1 105
1 110
i
1 115
1 120
1
125
1
C
G
1 U
130
J
U
Z
3
1
135
1 DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HS.A/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS. go 81240 WELL ID: MW-11D
1 �`*�19 I
July ,�0 0
1 THIS RECORD IS A REASONABLE INTERPRETATION LPROJ.NO.: 6228-10-5284 PAGE 3 OF 3
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER'' MACTEC
LOCATIONS.AND.AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE. 41-
1 TRANSITIONS BETWEEN STRATA MAYBE GRADUAL.

D 1 E SAMPLES
L
SOIL CLASSIFICATION E L 1 N-COUNT
T G E D 1
E v E Y.
H SEE KEY SYMBOL STILL-1 FOR EXPLANATION OF N P c e 7F
(0) SYMBOLS AND ABBRFVIArIONS BELOW. D (ft) T '
E _ REMARKS
' 0 Light red(2.5YR 6'6)clayey silt(ML) Dn'
5
Yellow(I OYR 7!8)clay silt(ML) Drr trace gravel
10
15
20
i
25
' Water on augers at 26'
Yellowish brown(IOYR 5!6)silty clap(CL) Moist
' 30
1
35
i
0�3 Wet at 38'
40 Boring terminated at 40.0'BGS
:i
z
z
v 45
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
MFTHOD: HSA
HOLE DIA,; PROJECT: Duke Energy Marshall Steam Station
REMARKS: 91f, Ito NVELL I D: MW-12S
August 3, 2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROD.NO.: 6228-10-5284 PAGE 1 OF I
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER O MAC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L F SAMPLES
E
P SOIL CLASSIFICATION G E I T N-COUNT
T E V E Y
H SEE KEY SYMBOL SHEE'(FOR EXPLANATION OF N P `o O
(fl) SYMBOLS AND ABBREVIATIONS BELOW'. D (ft) T E ) MAL S
0 Light red(2.5YR 6/6)clayey silt(ML) Dr),la)v ed,hard
SS-1 3-6-15
IU
Yellow(IOYR 7!8)clayey silt(ML) Dry,mottled
tiff-; 5-6-II
I
Some Fe staining
0 SS4 9-23-5015
Sof at 22.0'
25 SS-5 X 12-18-15 Coarse sand to gravel-sized k-feldspar
(24.5'-24.6)
' Light gray(10YR 7i I)silty clay(CLI
30 SS-6 ­6_8 Coarse sand to gravel(29.5'-29.6')
' Yellow,(I OYR 7i8)clayey silt(M L) Wet at 32.0'
SS-" 10-7-9
35 White clay(k-feldspar)band(35.0')
h
37.0'40.01 rig bouncing
Cl
a
v SS-8 —3-8
40
v
1 m
Variagated white(IOYR 8/1)to yellow(1 OYR 718)partially Abundant Fe staining
h weathered granite SS-9 4-7-18
45
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORMG RECORD
EQUIPMENT: CME 75O
METHOD: HSA/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: �(1F all° WELL ID: MW-12D
August 3,2010
' THIS RECORD 1S A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE I OF
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE Iv'DITIONS AT OTHER ; "MACTEC
LOCATIONS AND AT OTHERR TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
ESOIL CLASSIFICATION E L 1 N-COUNT
P G E T
T E V D Y
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N E P c
'4NSYMBOLS AND ABBREVIATIONS BELOW. D (ti) T E v N REMARI1,s
Variagated white(I OYR 8/1)to yellow(I OYR 7(8)partially
weathered¢ranite
' Yellow(IOYR 8/6)medium sand(SW)
50 SS-10 25-50/4
' Variagated white(1 OYR 8/1)to yellow(IOYR 7/8)partially Abundant Fe staining
55 weathered granite SS-11 13-22-25
Rig bouncing at 56.0'
Sti-C r, I Fe-stained zone(593-597)
60
Abundant Fe staining
65 SS-13 5-10-13
SS-14 20-32-35
71
' Dark greenish gray(Gleyl 4/59)foliated chlorite PWR
7.5 SS-15 30-50/4
' Dusky red(I OR 32)P WR
SS-16 X 14-50i4
80
o
N
R Variagated white(IOYR 8/1)to yellow(IOYR 7/8)partially
weathered granite r SS-17 50/3
`y 85
j
Z
C
O
' N 90 SS-I8 50/4
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSANQ Rock Core
HOLE DIA.: �Uf g40/ PROJECT: Duke Energy Marshall Steam Station
REMARKS: VC WELL ID: MW-12D
August 3,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 2 OF 3
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER OMAcTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
' E
P T SOIL CLASSIFICATION E L 1 N-COUNT
G L D
7 F Y Y
tl SEF KFY SY-MBOL SI IEFT FOR EXPLANATION OF N IN P f 'c �
t SYMBOLS AND ABBREVIATIONS BELOW. D (fl) T EjRIts
Variagatcd white(10YR 8!1 i to vellow(I0YR 7.5)partially
weathered granite
' Granite,strong,dark gray(G1cyl 4/N)phaneriuc,massive, SS-19 SOn_ Refusal at 94.0'BGS
95 slightly foliated,slightly decomposed(94.0'-95.6')to fresh RC'0 RQD:59%
(95.6'to 96.21 competent,slightly fractured Bedding plane fracture with Fc staining
RC-21. RQD:77%
1
100
' RC-22 RQD:69%
Foliated Granite:weak,dark gray(Gleyl 4/M.Gneissic,
foliated..moderately decomposed,disintegrated,unfractures
Chlorite Mica Shist;strong,very dark gray(Gley) YN),
105 shtstose,laminated,fresh,competent,unfractured
Boring terminated at 106.4'BGS
' 110
1 IIS
120
125
o
N
130
7
a
1 � 135
' DRILLER: Abel McGuire-AF Drilling SOIL,TEST BORING RECORD
EQUIPMENT: CME-750
NIET14OD: HSAfNQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: $(to,I" w`ELL ID: MW-12D
1
August 3,2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROD.NO.: 6228-10-5284 PAGE 3 OF 3
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER MACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER. 1
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L F SAMPLES
E SOIL CLASSIFICATION FL 1 3. N-COUNT
1'
T E \; F �.
FI SEE KEY SYMBOL SItEEr FOR EXPLANATION Of N P
!fll SYMBOLS AND ABBREVIATIONS BELOW. D (H) N E = PJEM.AFXS
0 Red(2.5YR 515)silt(ML) Dry
S
Brownish vellow(I OYR 6/6)silty clay(CL) Dry
' Very pale brown(I OYR 7'3)medium sand(SP)with gravel Moist
10
Light olive brown(2.51'5/3)clavey sand(SC) Dry
1 IS
20
25
'
-,'Light olive brown(2.5Y 5+3)sandy clay,(CL)
Boring terminated at 25.5'BGS Wet,flowing
r30
35
' o
N
L
' U
40
J
U
Z
K
' c 45
' DRILLER: Abd McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CMF-750
METHOD: HSA
HOLE DLA-: PROJECT: Duke Energy Marshall Steam Station
REMARKS: Rs��I[° WELL ID: MW-13S
August 6,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 1 OF 1
' SUBSURFACEOF CONDITIONS
I
LOCATION. COND ONS AT OTIfER10N
LOCATIONS AND AT OTHER TIMES MAY DIFFER. `/MACTEC
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAYBE GRADUAL.

D L E SAMPLES
' E
P SOH-CLASSIFICATION E L 1 T N-COUNT
T E V D Y
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N E P `o
(fl) SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E = c ` REMARKS
0 Yellowish red(5YR 518)sandy sill(ML) Dry
' S
SS-1 5-6-8
iVery pale brown(IOYR 713)medium sand(SP);some gravel Moist m uct
(quartz) SS-2 X —4-I
Irl
Light olive brourn(2.5Y S.r3)clayey sand(S('):laminated-
15 possible saprolitic soil SS-3 X 34-5
Spoon impended by quartz gravel(approx.
J SS-4 6-22-32 4 cm);wet
1
Light brownish grey(2.5Y 6/2)PWR,quartz;mica
SS-5 50/4 Hard at 24.0'
'
Flowing sand 27.0'-28.0'
Light olive brown(2.5Y 513)clayey sand(SC);laminated
30 SS-6 12-11-15 Quartz banding(29.2')
Water in hole
Some Fe staining
SS-7 504
3�
` Granite:very strong,light grey(10YR 7,2)aphanitic,intensely Re&tsal at 36.0'BGS
foliated slightly decomposed,unfractured R( RQD:20%
Biotite Gneiss:weak,greenish black(GleyI 2.515GY),
shistose,laminated highly decomposed,intensely
disintegrated,intensely fractured
R(-' RQD:13%
' 0-
45
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS:
S( IO WELL ID: MW-13D
August 4,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 1 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER OMACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
E SOIL CLASSIFICATION E L I N-COUNT
P G E
T T
E T F
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N N P c
Ifl5 SYMBOLS AND,ABBREVIATIONS BELOW'. D (R) T =E ^ 'E REMARKS
' RC-Ill RQD:0%
Boring terminated at 46.6 BGS
' 50
1
55
601
65
' 70
75
80
a
J
85
J
:7
z
R
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT CME 750
METHOD: HSAINQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
' REMARKS- ( � $�wlto NVELL ID: MW-13D
August 4,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROD. NO.: 6228-10-5284 PAGE 2 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER ,: MACTEC
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
' TRANSITIONS BETWEEN STRATA MAYBE GRADUAL.

D L E SAMPLES
E
P SOH-CLASSIFICATION E L T N-COUNT
G E
T F D V E N,
H SEE KEY SYMBOL SHEET FOR EXPLANATION OF N P) T
( N
0
SYMBOLS AND ABBREVIATIONS BELOW. D (R) E 'E
PXMAPXS
0 Red(2.5YR 518)silty sand(SM) Dry
5
Light brownish yellow(I OYR 6/4)silty sand(SM) Dr)q micaceous
10
15
20
2
30
Lj Trace cla%at 33,0'
A.
35
Some gravel at 37-0'
40
45
DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD,. HSA -------11
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: $(71f(o INTLI,ID: MW-14S
July 30,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 1 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER 1�
LOCATIONS AND AT OTHER TIMES MAY DIFFER. OMAcTEC
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D L E SAMPLES
' E SOIL CLASSIFICATION EL 1 T N-COUNT
P
T E V D Y
II SEE KEY SYMBOL SHEET FOR EXPLANATION OF N P 'c
lftl SYMBOLS AND ABBREVIATIONS BELOW. D (ft) T E y 'cMA15
4 Light brownish yellow(I OYR 6A)silty sand(SM)
' Boring terminated at 49.0'BGS
50
55
60
65
I
' 70
' 75
80
a
85
a
' 0 90
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
EQUIPMENT: CME-750
METHOD: HSA
HOLE Dom: PROJECT: Duke Energy Marshall Steam Station
REMARKS: i r.$�lvo WELL ID: MW-14S
i
July 30,2010
' THIS RECORD IS A REASONABLE INTERPRETATION 11PROJ.NO.: 6228-10-5284 PAGE 2_9F2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER -MACTE C
LOCATIONS AND AT OTHER TIMES MAY DIFFER.
INTERFACES BEWEEN STRATA ARE APPROXIMATE.
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

D
L E SAMPLES
P SOIL CLASSIFICATION E I E L N-COUNT
0
T E %, D T
11 E Y
SEE KEY SYMBOL SHEET FOR EXPLANATION OF N P
(ft) T
SYMBOLS AND ABBREVIATIONS BELOW. D (fl) N E V
j, REMAPUCS
0 Red(2.5YR 518)silty sand(SM) Dry
' , SS-I 4-5-6
Light brownish yellow(10YR 614)silty sand(SM) Micaceous,dry
-'1-2 3-4
10
Trace coarse-grained quartz banding and
1-44 Fc-staining;dry
SS-4 4-5-6
25 SS-5 x 6-11-12
Quartz and manic min banding from
30 SS-6 9-16-20 29.8'-30.0'
SS-7 x 11-20-27
35 Coarse-grained to gravel sized quartz and
1.4 mafic banding(34.5'-35.0')
o
Light Klkn%ish brown(2.5Y614)sand with quartz gravel(SP)
SS-8 11-26-36
w— 40
zv
Cffay(Gleyl 51N)granite rock(RK) Fe-stained,weathered
LSS-9 50J4
45 �N
DRILLER, Abel McGuire-AE Drilling SOIL TM BORING RECORD
EQUIPMENT: CME-750 F
METHOD; HSANQ Rock Core I I
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
REMARKS: WELL ID: MW-14D
July 28,2010
THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE I OF 2�
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER
LOCATIONS AND AT OTHER TIMES MAY DIFFER-
INTERFACES BEWEEN STRATA ARE APPROXIMATE. 0- MACTEC
TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

1
D L E SAMPLES
' P SOIL CLASSIFICATION E L I N-COUNT
G E T
T E `, D y
H SEE KEY SYMBOL SI ILI NATION I FOR EXPLANATION OF N P c
(fl SYMBOLS AND ABBREVIATIONS BELOW D (ft) � E = c 2 REMARKS
43 Gray(Gley)5,N)granite rock(RK) +++
' +++ Chlorite vein at 487
+++ SS-10 29-50!3
50 Biotite gneiss.bluish gray(GIey2 511),strong,gneissic, Refusal at 50.0'BGS
laminated,slightly decomposed slightly disintegrated- RC-1 I Bedding plan joint at 50.25',50.45',501,
moderately fractured 51.15'(45')
' RC-I' Shear at 50.35'with Fe-slaining
Fracture zone at 52.0'-52.4'
Bedding plane foliation infilled with quant
Joints with Fe-staining at 52.8'-52.9-
55 Fe-stained joint at 53.6'
Joint at 53.75'
Granite,white(SYR 8!1)moderate strength.Fe-staining
RC
coarse grained,laminated,moderately decomposed, -13
moderately disintegrated.unfractured Healed bedding plane joint at 57.6'infilled
White(5YR 8/1),weak,abundant Fe-staining,gneissic, with quartz
' 60
intensely foliated,intensely disintegrated intensely fractured Joint%i ith Fe-staining at 58.6' T.
Joint with Fe-staining at 58.8'
Boring terminated at 6(I.I'BGS
' 65
1
' 70
75
80
r
4
v
z
a
90
' DRILLER: Abel McGuire-AE Drilling SOIL TEST BORING RECORD
FQIfIPMF.NT: CMF:-750
METHOD: HSA/NQ Rock Core
HOLE DIA.: PROJECT: Duke Energy Marshall Steam Station
' REMARKS: R 8(ia'(e «'ELL ID: MW-14D
1� July 28,2010
' THIS RECORD IS A REASONABLE INTERPRETATION PROJ.NO.: 6228-10-5284 PAGE 2 OF 2
OF SUBSURFACE CONDITIONS AT THE EXPLORATION
LOCATION. SUBSURFACE CONDITIONS AT OTHER A ^ T
LOCATIONS AND AT OTHER TIMES MAY DIFFER. 1 i MA( T�-1[
INTERFACES BEWEEN STRATA ARE APPROXIMATE. 1 111 ��1���JJJ 11��v
' TRANSITIONS BETWEEN STRATA MAY BE GRADUAL.

Ash Basin Monitoring Well Installation Report August 26,2010
' Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
APPENDIX C
MONITORING WELL RECORDS
t
1
1
1
1

da�srA7x'o
NONRESIDENTIAL ONRESIDENTIAL WELL CONSTRUCTION RECORD
' North Carolina Department of Environment and Natural Resources-Division of Water Quality
`•�%, „�,• WELL CONTRACTOR CERTIFICATION# ISM
' 1.WELL CONTRACTOR: t
,y / :d. TOP OF CASING IS .3 FT.Above Land Surface'
"Top of casing terminated atfor below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.0118.
A E DRILLING SERVICES. LLC :e. YIELD(gpm): ,,rIIA METHOD OF TEST_
' Well Contractor Company Name :
Two United Way eI. DISINFECTION:Type Amount _
Street Address :g. WATER ZONES(depth):
Greenville SC 29607 ;Top Bottom Top Bottom
City or Town State Zip Code ;Top Bottom Top Bottom
8( 64 ) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness/
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# ;Top O Bottom Ft. Q • Ola PVC-
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring N Municipal/Public❑ :8. GROUT: Depth Material Method
IndustdaUCommercial❑ Agricultural❑ Recovery❑Injection❑ ;Topes Bottom_ Ft. &,gM7-;N e.
Irrigation❑ Other (list use) :Top �O Bottom 9 Ft.&cgp _ 7�rY,iL
DATE DRILLED 7�"k+= ;Top Bottom Ft.
4.WELL LOCATION: C :9. SCREEN: Depth Diameter Slot Size Material
Top-/g!__ Bottom a] Ft._X in. •10 In. 1dC-
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :Top Bottom Ft. In. in.
CITY:T p H„ COUNTY :Top Bottom Ft. In. In.
TOPOGRAPHIC f LAND SETTING: (check appropriate box)
gSlope ❑Valley ❑Flat ❑Ridge ❑Other :10.SANDIGRAVEL PACK:
Depth Size Material
LATITUDE �J�_° ' 2 0"DMS OR 3X.xxxxxxxxx DD :Top /O` Bottom 6771 Ft. L �n
LONGITUDE 8U 58 yo( Q "DMS OR 7x.xxxxxxxxx DD :Top Bottom Ft.
' Latitude/longitude source: [33PS []Topographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) :11.DRILLING LOG
5.FACILITY(Name of the business where the well Is located.) : Top Bottom Formation Description
�arshn��S'�enm ,��a�ion � _Q/�— st#d'Etou�rLz DVtie�UT�r�J
Al
Facility Name Fatality ID#(if applicable)4,4
/
Street Address—^�
1 /
Ti�refl. l
City or To State Zip Code J
' Contact Name /
Mailing Address /
City or Town State Zip Code
LILA` 12.REMARKS:
"LA 1 I,,j e
Area code Phone number
S.WELL DETAILS: M IV-1p S •I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH:_ ��� :RECORDH 8 E PROVIDE TO THE WELL OWNER.
9_y Ao
b. DOES WELL REPLACE EXISTING WELL? YES❑ NO❑ :SIGNATURE OF CERTIFIED WELL CONTRAC R DATE
' c. WATER LEVEL Below Top of Casing: xP•U FT. pL Com,LJ 7 Rt .
(Use"+°if Above Top of Casing) :PRINTED NAME OF PERSON CONSTRUCTING THE WELL
Form GW-1 b
Submit the original to the pFISIOfI Qf`�N6t�x quad IAfltllirl' Aa Atf� fhfpft>ttio il�gt„ Rev.11/08
1617 Mall Servi;ae Ce»t@r�i3alel�(1,�C�37��9� 7 00g
1

��a�5TA7£y�
' NONRESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
•� • WELL CONTRACTOR CERTIFICATION# 55-7V
' 1.WELL CONT T d. TOP OF CASING IS R: `
.� FT.Above Land Surface'
o f�k 1 "Top of casing terminated aUor below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.01 18.
A E DRILLING SERVICES. LLC :e. YIELD(gpm): iV/A _._.METHOD OFTEST Allif
' Well Contractor Company Name
TWO United Way f. DISINFECTION:Type .1111A Amount--
Street Address :g. WATER ZONES(depth):
Greenville SC 29607 Top Bottom Top Bottom
' City or Town Stale Zip Code Top Bottom Top Bottom
8064_) 288-1986 :TopBottom Top Bottom
Area code Phone number Thickness/
' 2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# ;Top_0 BottomO•S Ft. ;a 010 04C'
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
1 SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring Municipal/Public O 8. GROUT: Depth Material Method
Industrial/Commercial p Agricultural❑ Recovery❑ Injection❑
Topes Bottom 77" Ft. eme., Ti A1/e—
Irrigation❑ Other❑ (list use) :Tope Bottom 1-1 Ft. 7reitl�
DATE DRILLED 7 27Top Bottom Ft.
4.WELL LOCATION: ( 9. SCREEN: Depth • Diameter Slot Size Material
1P�S1'�•�L v �ltl� :Top�"BottomFt. Z' in. D in. J.
(Street Name,Numbers,Community.Subdivision,Lot No.,Parcel,Zip Code) Top Bottom Ft. In. In.
CITY��Zh�il COUNTY :Top Bottom Ft. In, in.
' TOPOGRAPHIC f LAND SETTING: (check appropriate box)
[]Slope OVailey ❑Flat ❑Ridge ❑Other : 10.SANDIGRAVELPACK:
LATITUDE 3s •3U '.3b O"DMS OR 3x.xxxxXXXXX DD Depth Size Material
LONGITUDE $b "5$'— 9 DMS OR 7X.XXxXXxxxx DD '.Top 7FS Bottom�XFt. 40 G2
--�-- Top Bottom Ft.
' Latitude longitude source: E]GPS QTopographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
5.FACILITY(Name of the business where the well is located.) Top Bottom Formation Description
LZI����f,S�nna STaTigr, O /_�S _ SY'���LnL O'>_K�SvtsAuJ
Facility Name Facility#(if applicable) _ �s_/SSS [J::
11,4
' Street Address /
Tw1l N.C. cl&l u l
City or T wn State Zip Code /
' Contact Name
Mailing Address /
City or Town State Zip Code
12.REMARKS:
Area code Phone number
6.WELL DETAILS: M /r
D D 100 HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
w :15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH: S EE OVIDED TO THE WELL OWNER.
SSS RECORD �
b. DOES WELL REPLACE EXISTING WELL? YES❑ NO 5t /( 1�
SIGNATURE OF CERTIFIED ELL CONTRACTOR TE
' c. WATER LEVEL Below Top of Casing: ;Jo .93 FT. ���1 u 1
(Use"+"if Above Top of Casing) PRINTED NAME OF PERSCTN CONSTRU CTING THE WELL
Form GW-1b
Submit the original to the pivision.ofi)llfa ei T�tt�l.. yiACf l 3ti days. Att(1:lilfprmtitioltMgt•, Rev.11108
00
1617 Mail Service Center-Raietgh,NC 37599-i617t78 N4R ,47-63

r
�s�ATzv�
NONRESIDENTIAL WELL,CONSTRUCTION RECORD
r North Carolina Department of Environment and Natural Resources-Division of Water Quality
•Q,�",�• WELL CONTRACTOR CERTIFICATION#
.QST/
' 1.WELL CONTRACTOR: :d. TOP OF CASING IS r FT.Above Land Surface'
'Top of casing terminated at/or below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.01 18.
' A E DRILLING SERVICES, LLQ :e. YIELD(gpm): A11A METHOD OF TEST �
Well Contractor Company Name
TWO united Way f. DISINFECTION:Type .� Amount
Street Address :g. WATER ZONES(depth):
' Greenville SC 2 607 Top Bottom Top Bottom
City or Town State Zip Code ;Top Bottom Top Bottom
8t 64 ) 288-1986 Top Bottom Top Bottom
Area code Phone number Thickness/
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# Top_ ) Bottom Ft. a� O I D JC,
OTHER ASSOCIATED PERMIT#(if applicable) Top Bottom Ft.
SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring Municipal/Public❑ :8. GROUT: Depth Material1 Method
Industrial/Commercial❑ Agricultural❑ Recovery❑ Injection❑ Top 0' Bottom jl Ft.
r Irrigation❑ Other❑ (list use) :Top6 Bottom Ft.�_
DATE DRILLED Top Bottom Ft.
4, J
WELL LOCATION: C .9. SCREEN: Depth Diameter Slot Size Material
lfllt<R 11-4A [tc_01 -3 'Top 77' Bottom Q' Ft. ?'in. /b in. eIIE,
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :TOp Bottom Ft. in. in.
CITY--V 1 COUNTY (��w��__u-*- :Top Bottom Ft. in. in.
r TOPOGRAPHIC/LAND SETTING: (check appropriate box)
[]Slope ❑Valley ❑Flat ❑Ridge ❑Other :10.SANDIGRAVELPACK:
LATITUDE 5'S' '5Lp -LA-T 00-DMS OR 3X.xxxxxxxxx DODepth:Top JS , Bottom ss' Ft. 4-0/
mater al
LONGITUDE Sb 'IUDL61 "DMS OR 7x.xxx_ xxxxxx DO :Top Bottom Ft.
Latitudeflongitude source: SPS aopographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
5.FACILITY(Name of the business
where the well is located.) : Top Bottom Formation Description
0A : _ro_/___3� S_n{�.^r� 8 1r-P ►y�� <W)
Facility Name Facility ID#(if applicable) _/_
' Street Address 2 /
City or Town State Zip Code /
Contact Name /
Mailing Address /
' City or Town State Zip Code
12.REMARKS:
Area code Phone number
6.WELL DETAILS:/", ��S I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
r :15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH:
RECORD H/S BEEN PROVIDED TO THE WELL OWNER.
�s
b. DOES WELL REPLACE EXISTING WELL? YES❑ NO[ :SIGNAT RE OF CERTIFIED 1AELL CONTRACTOR DATE
c. WATER LEVEL Below Top of Casing: 1 FT. i"[a CA— J 1A
(Use"+"if Above Top of Casing) :PRINTED NAME OF PER N CONSTRUCTING THE WELL
Form GW-1b
Submit the original to the pivisltat�; lf 1i�lte��udY Within 30 ga' ttnt Information Mgt„ Rev.11108
1617 Mail Service Center–Raleigh,NC17f�9-1817 'Phone Mcg.�9'9 A7�30n `
i

i
NONRESIDENTIAL!'ONRESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
E
•�,� ,�• WELL CONTRACTOR CERTIFICATION# .5L5
' 1.WELL CONTRACTOR: r
/I ` =d. TOP OF CASING IS ,3 FT.Above Land Surface'
'Top of casing terminated actor below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.0118.
A E DRILLING SERVICES. LLC e. YIELD(gpm):40 ..-__METHOD OF TEST—,-i//A
' Well Contractor Company Name f. DISINFECTION:Type 411A Amount
_Two United Way
Street Address g. WATER ZONES(depth).
' Greenville SC 29607 =Top Bottom Top Bottom
City or Town State Zip Code ;Top Bottom Top Bottom
8( 64 ) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness/
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# Top .Q Bottom g5.ls Ft. a, 010 0,4 C,
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring$' Municipal/Public❑ 8. GROUT: Depth 1 Material L Method
Industrial/Commercial p Agricultural❑ Recovery❑Injection
Top _Bottom
Cl Ft.�! /m
Irrigation❑ Other❑ (listuse) Topsas Bottom Sl S Ft. e--
DATE DRILLED 7-10-10 Top Bottom Ft.
4.WELL
LOCATION: r 8. SCREEN: Depth Diameter Slot Size Material
Topc,.0 Bottom966 Ft. a?' In. .JO in. el��
(StreetName,^Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :TOp Bottom Ft. In. in.
_
CITY: _I!J(2�LL- COUNTY THc Top Bottom Ft. In. in.
TOPOGRAPHIC/LAND SETTING: (check appropriate box)
❑Slope ❑Valley ❑Flat ❑Ridge ❑Other 10.SANDIGRAVEL PACK:
LATITUDE 3S '��� I I "DMS OR 3X.XXXXXXXXX DD Depth 9 Size Mate
:Top �.� Bottom ��o, Ft. X02 �
LONGITUDE� -59 '-74130 "DMS OR 7X.xxxxxxxxx DD Top Bottom Ft.
' Lafitudelongitude source: [SPS ❑topographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
S.FACILITY(Name ofthebusiness where the well is located.) : Top Bottom Formation Description
�uistiu� .Sf�d✓v> 5& /,-C>n Q1�� �ACt���ttt �UtL�tJI'1�A�
Fa illy Name Facility ID#(if applicable) �_I C� b �� nem
r 3a0 �as� AC Z4ti�4.>av /SO 1
Street Address /
Trrrrlf, MN
City or Towff State Zip Code /
�1Yti aL) /
' Contact Name
Mailing Address /
' City or Town Stale Zip Code : 12.REMARKS:
Lo
Area code Phone number
6.WELL DETAIL$: M r{D •1 DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
' 1' r :15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
RECORD HAZBN PROVIDE TO THE WELL OWNER.a. TOTAL DEPTH: RD• L . v
b. DOES WELL REPLACE EXISTING WELL? YES❑ NO :SIGNATURE D ELL CONTRACTOR 0DATE
c. WATER LEVEL Below Top of Casing:_�3.140 FT. &ELM
(Use"+"if Above Top of Casing) -�— : PRINTED NAME OF PERSION CONSTRUCTING THE WELL
Form
Submit the original to the piVision of Water quality wlt6o,l S. Attu:Inform8tioq Mgt., Rev.11108
1617 Mail Service Center Raleig n,NC"276§9-1617 hor)e N.4 (07-6300

' NONRESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
`•o,,, •,,• WELL CONTRACTOR CERTIFICATION
' 1.WELL CONTT R:
d. TOP OF CASING IS�^FT.Above Land Surface'
�46(� 'Top of casing terminated at/or below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.01 18.
A E DRILLING SERVICES, LLC :e. YIELD(gpm):_4z�� METHOD OF TEST
Well Contractor Company Name
I. DISINFECTION:Type Amount
Two United Way
Street Address ;g. WATER ZONES(depth):
' Greenville SC 29607 Top Bottom Top Bottom
City or Town State Zip Code :Top Bottom Top Bottom—
(864
ottom
8( 64 ) 288-1986 Top Bottom Top Bottom
Area code Phone number
Thickness/
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# jopes Bottom -1 Ft.
OTHER ASSOCIATED PERMIT#(If applicable) :Top Bottom Ft.
SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring l( Municipal/Public O 8. GROUT: Depth Material Method
Industrial/Commercial p Agricultural❑ Recovery❑ Injection❑ —��
Top D` Bottom 3, Ft._Ce/-e^f
' Irrigation❑ Other❑ (list use) :Top _Bottom_Ft. �
DATE DRILLED Top Bottom Ft.
4.WELL LOCATION: .9. SCREEN: Depth Diameter Slot SizeWterial
Top Bottom oho?' Ft in. lD In. UC
' (Street Name,Numbers.Community,Subdivision,Lot No.,Parcel,Zip Code) :Top Bottom Ft, in. in.
CITY: {G } �L� COUNTY Vt� ;Top Bottom Ft. In. In.
TOPOGRAPHIC/LAND SETTING: (check appropriate box)
❑Slope ❑Valllev� ❑Flat []Ridge ❑Other :10.SANDIGRAVEL PACK:
LATITUDE _J✓ ',3(Q `4510W Depth S e Material
�"DMS OR 3X.xxxxxxxxx DD :Top _Bottom�Q Ft.� 5Q- 7
LONGITUDE S"DMS OR 7X.XXXXXXXXX DD ;Top Bottom Ft-
' Latitudellongitude source: (SPS Dropographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
S.FACILITY(Name of the business where the well Is located.) : Top Bottom Formation Description
Facility Name Facility ID#(if applicable) /
93A) -,451 /U.(- /M l
' Street Ad dyes;L
City or Town\ State Zip Code /
Contact Name /
Mailing Address /
' City or Town State Zip Code
12.REMARKS:
Area code Phone number
6.
6.WELL DETAILS:toe- a J I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
' :15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
,J^, RECORO EEN OVIDED TO WELL OWNER.
a. TOTAL DEPTH:_ zl�
b. DOES WELL REPLACE EXISTING WELL?'rYES❑ NO SIGNATURE16F CERTIFIED WELL C NTRACTOR DATE
' c. WATER LEVEL Below Top of Casing:_ +FT. L) ( ({ly t C
(Use"+"if Above Top of Casing)
PRINTED NAME OF PERSON CONSTRUCTING THE WELL
Submit the original to the pivision.of YllaprQualiljf usrlthtn 3Q dlys i4ttnt Info[tltati6l)I IVIgt,, Form GW-1bRev.11108
1617 Mail Service Center-Raleigh,NC"044 0.46.j7 sT hone 1114940it,x$07-630 '

NONRESIDENTIAL WELL CONSTRUCTION RECORD
' North Carolina Department of Environment and Natural Resources Division of Water Quality
i
°@„�;�• WELL CONTRACTOR CERTIFICATION# 3S 7/
' 1.WELL C/ONTR/ACTOR:� J x d. TOP OF CASING IS � FT.Above Land Surface'
l/irG
*Top of casing terminated atior below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.01 18.
' A E DRILLING SERVICES, LLC ;e. YIELD(gpm►: N/0- METHOD OF TEST &11
Well Contractor Company Name
TWO United Way :f. DISINFECTION:Type N/A _ Amount
Street Address :g. WATER ZONES(depth):
' Greenville SC 29607 Tap Bottom Top Bottom
City or Town State Zip Code :Top Bottom Top Bottom
8( 64 ) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness!
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# ;Top_ ) Bofom qO Ft. ,Qit .010
k�JG
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
' SITE WELL 10#(it applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring Municipal/Public❑ 8. GROUT: Depth Material Method
Industrial/Commercial❑ Agricultural❑ Recovery❑ Injection❑ Top O'_Bottom t?(.' Ft. V tft 4 —!Lr A;t _
' Irrigation❑ Other❑ (listuse) 'Top SS •b Bottom $(R Ft.Jq)20-6()i C-,
DATE DRILLED_ Top Bottom Ft.
4.WELL LOCATION: 9. SCREEN: Depth Diameter Slot Size Material
'
.Top 9a, Bottom_ Ft.� In. �� in. L
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) Top Bottom Ft. in. in.
CITY: COUNTY Top Bottom Ft. In. In.
TOPOGRAPHIC/LAND SETTING: (check appropriate box)
'
[]Slope ❑Valley ❑Flat ❑Ridge ❑Other :10.SANDIGRAVELPACK:
Depth Size Material
LATITUDE 35 °31c' 390.5 ~DMS OR 3x.XXxxxxxxx DO ;Top, Bottom 16),C Ft.� SG"w
LONGITUDE Sb °Sb'3I�j8 d ^DMS OR 7x.xxxxxxxxx DO :Top Bottom Ft.
Latitude/longitude source: W3PS Qropographic map :Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) ; 11.DRILLING LOG
5.FACILITY(Name(Name1of the business where the well is located.) Top
/�J Bottom
f� Formation Description t
' _LLirs/(; �S7 !l� /Ci 7i-On `0 1 !�J V :S !. �fJL.LkJV
Facility Name 1 Facility ID#(if applicable) CiA l O b Iia 1--.
/l/
' Street Address
City or To State Zip Code /
wt
' Contact Name /
1
Mailing Address /
' City or Town State Zip Code :12.REMARKS:
LO—Z-J�L —7) 47 R l/1
Area code Phone number �}
6.WELL DETAILS:Mk)-/2-J I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
15A 12C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH: 1Olo
r :RECORD HAS BEEN PROVIDED TO THE WELL OWNER.
b. DOES WELL REPLACE EXISTING WELL? YES O NO O :SIGNATURE OF CERTI DF�WELL CONTRACTOR DATE
'
C. WATER LEVEL Below Top of Casing: j�a 1—FT. �jFI DEMON
(Use"+"if Above Top of Casing) PRINTED NAME OF CONSTR TING THE WELL
' Form GW-1 b
Submit the original to the pivisio i Rf �Qu21 f>k sll(IJ.htl ,3A q Att iTw0q."AtlorrMgt„ Rev.11/08
1017 Mail Service Center—Raleigh, l �

NONRESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
•� �• WELL CONTRACTOR CERTIFICATION# 3S7
' 1.WELL GD NTRACTOR: r
�[_ d. TOP OF CASING IS�FT.Above Land Surface'
.44V "Top of casing terminated at/or below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.01 18.
A E DRILLING SERVICES. LLC e. YIELD(gpm): N10' METHOD OF TEST 1//Ot
' Well Contractor Company Name
Two United Way f. DISINFECTION:Type,_ All/� Amount ytoll/`�
Street Address :g. WATER ZONES(depth):
' Greenville SC 29607 Tap Bottom Top Bottom
City or Town State Zip Code :Top Bottom Top Bottom—
(864
ottom
Sf 64 ) 288-1986 :Tap Bottom Top Bottom
Area code Phone number Thickness/
' 2.WELL INFORMATION: :T. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# ;Top O Bottom_Ft. a t� 01C) '(C-
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring Municipal/Public❑ 8. GROUT: Depth Material Method
Industrial/Commercial❑ Agricultural❑ Recovery❑Infection p
Top--D% Bottom_' Ft.Irrigation❑ Other❑ (list use)
Top o� Bottom I Ft. 1�- �texY1'\e--
DATE DRILLED 944-10 Top Bottom Ft.
4.WELL LOCATION: 9. SCREEN: Depth Diameter Slot Size Material
' rhpyt.irtRt� Sl'�uya :Top_ Bottom FL_z• in. .Ad In. �_
(Street-Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :Top Bottom Ft. in. in.
CITY: 1amt4 -t_ A COUNTY :Top Bottom Ft. in. in.
' TOPOGRAPHIC/LAND SETTING: (check appropriate box)
([Slope ❑Valley ❑Flat CVRidge ❑Other :10.SAND/GRAVEL PACK:
ATITUDE -3s '�D'- J(Q "DMS OR 3x.xxxxxxxxx Dp Depth Size Malarial
L
—— :Top�Bottom ��Ft._,*/ .�7n
LONGITUDE It, "DMS OR 7x.xxxxxxxxx DO :Top Bottom Ft.
' Latitude/longitude source: MGPS 0Topographic map :Top Bottom Ft.
(location of wet/must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
S.FACILITY(Name of the business where the well is located.) : Top Bottom Formation Description
ska-n SA/;o„ s2_/_ _ iSh1 LaZt t_ nt r�&�Dt?,J
Facility Name Facility ID#(if applicable) /
8�Z0 ArAfy elle, h!�'W /1s0
ess
Street Ad4r
City
�or Ton State Zip Code /
' Contact Name /
Mailing Address /
' City or Town State Zip Code
Q �12.REMARKS:
Area code Phone number ? `
6.WELL DETAILS:/h L✓-I J J I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
' 15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH: �J :RECORD HAS BEEN PROVIDED TO THE WELL OWNER. lD
b. DOES WELL REPLACE EXISTING WELL? YES❑ N04 .SIGNATURE OF CERTIFI eD WELL CONTRAS DATE
' c. WATER LEVEL Below Top of Casing:_5�� FT,
(Use'+"if Above Top of Casing) PRINTED NAME OF PERSOO CONSTRUCTING THE WELL
Form GW-1b
Submit the•otli>rt�ilt iwti ��t a X s 1I'gf�itmatlo Mgt.,, Rev.tilos
1617 Mail Se n►i �t ett" Ifs. ij F T `� �`

NONRESIDENTIAL ONRESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
WELL CONTRACTOR CERTIFICATION# "
1 1.WELL CONTRACTOR:
.��``��..,, d. TOP OF CASING IS Y FT.Above land Surface'
/--bet mC GL(r(�- 'Top of casing terminated attor below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.0118.
A E DRILLING SERVICES. LLC e. YIELD(gpm): i✓//� METHOD OF TEST ej�
Well Contractor Company Name
' TWO United Way I. DISINFECTION:Type Amount
Street Address :g. WATER ZONES(depth):
' Greenville SC 29607 Top Bottom Top Bottom
City or Town State Zip Code Top Bottom Top Bottom
H( 64 ) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness!
2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# ;Top 0 Bottom 4I.L Ft. D" O10 �e-
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
SITE WELL ID#(If applicable) :Top Bottom Fl.
3.WELL USE(Check One Box)Monitoring❑ Municipal/Public❑ :8. GROUT: Depth Material
1 Method
IndustriallCommerciai❑ Agricultural❑ Recovery❑ Injection❑ Topes— Bottom 3U'Ft. �6�e� / �t�rti e
Irrigation❑ Other p (list use) :Top _Bottom 3$. Q Ft. lT4on
DATE DRILLEDTop Bottom Ft,
4.WELL LOCATION: 9. SCREEN: Depth Diameter Slot Size Material �y
'
DA�i�t� . :Top yz 6, Bottom_Y�.,J'Ft. Z In. /D in. r�
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :Top Bottom Ft. in. in.
CITY: T�iC�t,u _ COUNTY r Top Bottom Ft. In. in.
t TOPOGRAPHIC f LAND SETTING: (check appropriate box)
❑Slope ❑Valley ❑Flat ❑Ridge pother 10.SANDIGRAVEL PACK:
2c,5 Depth Size Material!
LATITUDE _°N'r16 O`P/"DMS OR 3X.XXXXXXXXX DD :Top -9&`Bottom Y64'Ft.� Sand
LONGITUDE SO '5s ,q:,6u g "DMS OR 7x.xxxxxXxxx DD :Top Bottom Ft.
' LatitudeAongitude source: SPS Qropographic map :Top Bottom Ft.
(location of well mustbe shown on a USGS topo map andattached to
this form if not using GPS) 11.DRILLING LOG
5.FACILITY(Name of the business where the well is located.) Top Bottom Formation Description
Facility Nam6 Facility ID#(if applicable) 4t�, D_ 1S,r�aft �
Street Address /
��e l C-
City or Town State Zip Code /
01
' Contact Name /
Mailing Address /
' City or Town State Zip Code
:12.REMARKS:
Area code Phone Mmber
6.WELL DETAILS: �►J -�3 O I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
1 :15A NCAC 2C.WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
REC AS BEEN PROVIDED TO THE WELL OWNER.
a. TOTAL DEPTH: � _(e
b. DOES WELL REPLACE EXISTING WELL? YES❑ NO( :SI N TURE F CERTIFI WELL CONTRACTOR (' DATE
c. WATER LEVEL Below Top of Casing: . 59 _FT, lie
�/ �
' (Use"+"if Above Top of Casing) :PRINTED NAME OF PERSON CONSTRUCTING THE WELL
' Form GW-1 b
Submit.the original_to th .p vl$[Orfof wa#er Qual.'�y>n(itMln$ days Atte:1hformaticIp Mot„ Rev.11/08
1617 Mail Service Qenter-Raleigh,NC`2TI& �- 7 h`�lii6. Q. f9k 07.6300

�n^�4
' NONRESIDENTIAL ONRESIDENTIAL WELL CONSTRUCTION RECORD
z North Carolina Department of Environment and Natural Resources-Division of Water Quality
•4+r e,,",�or• WELL CONTRACTOR CERTIFICATION ff 07f
' 1.WELL CONTRACTOR: d. TOP OF CASING IS FT.Above land Surface'
Ak/ 95Irr i4;-r— "Top of casing terminated aUor below land surface may require
Well Contractor(Individual)Name a variance in accordance with 15A NCAC 2C.0118.
A E DRILLING SERVICES. LLC :e. YIELD(gpm):_NrA METHOD OF TEST
' Well Contractor Company Name
Two United Way f. DISINFECTION:Type Amount IfIle
Street Address :g. WATER ZONES(depth):
' Greenville SC 29607 Top _Bottom Top Bottom
City or Town State Zip Code :Top Bottom Top Bottom
8( 64 ) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness/
' 2.WELL INFORMATION: 7. CASING: Depth Diameter Weight Material
� 1
WELL CONSTRUCTION PERMIT# Top Bottom Ft. �C
OTHER ASSOCIATED PERMIT#(if applicable) Top Bottom Ft.
' SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring VMuniclpal/Public p :8. GROUT: Depth Material Method
Industrial/Commercial0 Agricultural Recovery Ll Injection
Top 0 Bottom S/ Ft.� Imo.�►+
' Irrigation❑ Other❑ (list use) Top 53-S Bottom I't-.0icionk Tlemi c-
DATE DRILLED 7- Top Bottom Ft.
4.WELL LOCATION: :9. SCREEN: Depth Diameter Slot Size Material
Top-2L Bottom 6A7� Ft. Z� in. 70 in. PaC-
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel,Zip Code) :TOp Bottom Ft. In. in.
CITY: COUNTY TopBottom Ft. in. In.
TOPOGRAPHIC/LAND SETTING: (check appropriate box)
' p8lope ❑Valley ❑Flat ❑Ridge ❑Other :10.SAND/GRAVEL PACK:
.Depth Size Material
LATITUDE S °'Jt0' I -DMS OR 3X.XXXXXXXXX DO :Top �3 S Bottom 40. Ft._� �n
LONGITUDE °58' '�,aGa"DMS OR 7x.xxxxxxxxX DD :Top Bottom Ft.
Latitude/longitude source: SPS ❑Topographic map Top Bottom Ft.
(location of well must be shown on a USGS topo map andattached to
this form if not using GPS) 11.DRILLING LOG
5.FACILITY(Name of the business where the well is located.) : Top Bottom Formation Description
s >,�,
Facility Name Facility ID#(if applicable) (a 2) (3c n1r s�.1rc
' Street Addr ss /
C—ityyor-Towfi State Zip Cade J
Contact Name /
Mailing Address J
' City or Town State Zip Code
:12.REMARKS:
Area code Phone number
6.
6.WELL DETAILS:/i y{i(/` `�D •100 HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
15A NCAC 2C.WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
/ n RECO O HAS BEEN PROVIDED TO THE WELL OWNER.
a. TOTAL DEPTH: SRI I :_( �G �
b. DOES WELL REPLACE EXISTING WELL? YES/❑ NO� SI NA E OF CERTIFIED WELL CONTRACTOR DATE
c. WATER LEVEL Below Top of Casing: 3L .q S FT.
(Use"+"if Above Top of Casing) :PRINTED NAME OF PERSON CONSTRUCTING THE WELL
'
Submit Form GW-1b
ttii#the original to the pia)i�iQ>vt�f Water li �l(ittlaY An{i:Ttifprmfitiorl Mg;., Rev.loos
1617 Mail Service Center R .@tlIE7� -1617 , , 30b`

NONRESIDENTIAL
��ONn
' ( 1 � RESIDENTIAL WELL CONSTRUCTION RECORD
North Carolina Department of Environment and Natural Resources-Division of Water Quality
•tea,; ,,,• WELL CONTRACTOR CERTIFICATION# ?57/
1.WELL CONTRAC,jPq: :d. TOP OF CASING IS FT.Above Land Surface'
"Top of casing terminated aUor below land surface may require
Well Contractor(individual)Name a variance in accordance with 15A NCAC 2C.01 18.
p�E DRILLING SERVICES, LLC :e. YIELD(gpm):-_ METHOD OF TEST-
'
Well Contractor Company Name
TWO United Way f. DISINFECTION:Type_' Amount
Street Address :g. WATER ZONES(depth):
' Greenville SC 29607 Top Bottom Top Bottom
City or Town State Zip Code :Top Bottom Top Bottom
8t 64_) 288-1986 :Top Bottom Top Bottom
Area code Phone number Thickness/
' 2.WELL INFORMATION: :7. CASING: Depth Diameter Weight Material
WELL CONSTRUCTION PERMIT# Top—_L)_Bottom Ft. 07 r' •010 13<1
OTHER ASSOCIATED PERMIT#(if applicable) :Top Bottom Ft.
' SITE WELL ID#(if applicable) :Top Bottom Ft.
3.WELL USE(Check One Box)Monitoring iX Municipal/Public❑ :8. GROUT: Depth Material 1j Method
Industrial/Commercial❑ Agricultural❑ Recovery❑ Injection❑ Top O` Bottom Zr Ft. _7,-;,A"ew�
Irrigation❑ Other E3 (list use) :Top aCG' Bottom ass' Ft. +Uni Ii fe1Y�i e
DATE DRILLED -��"t(� Top Bottom Ft.
4.WELL LOCATION: :9. SCREEN: Depth Diameter Slot Slze' Material Top c-V?t Bottom y�t FL Z` in. ,�D in. /121t-
(Street
�L
(Street Name,Numbers,Community,Subdivision,Lot No.,Parcel.Zip Code) :Top Bottom Ft. in. in.
CITY_rc__V .►J COUNTY 'a :Top Bottom Ft. In. in.
' TOPOGRAPHIC/LAND SETTING: (check appropriate box)
❑Slope []Valley ❑Flat ❑Ridge ❑Other :10.SANDIGRAVEL PACK:
Depth Size Material
LATITUDE 35 "DMS OR 3x.XXXxxXxxx DD :Top 4 k Bottom-4q FL-4!�Z -Qnd
LONGITUDE �-O ° r_'�79 "DMS OR 7x,xxxxxxxxx DD :Top Bottom Ft.
' Latitude/longitude source: 007,PS pTopographic map :Top Bottom Ft.
(location of weft must be shown on a USGS topo map andattached to
this form if not using GPS) : 11.DRILLING LOG
6.FACILITY(Name of the business where the well is located.) : Top Bottom Formation Description
Facility
y,Name
C Facility ID#(if applicable) /
' Street Address
�L/7"B� ,x„11'=C--• �fG� d !�` l
City or Town State Zip Code /
757w,
' Contact Name I
Mailing Address !
' City or Town State Zip Code
12.REMARKS:
br-19-7 L:23-
Area code Phone' number
�
�µi-�yk� I DO HEREBY CERTIFY THAT THIS WELL WAS CONSTRUCTED IN ACCORDANCE WITH
6.WELL DETAIL$: :15A NCAC 2C,WELL CONSTRUCTION STANDARDS,AND THAT A COPY OF THIS
a. TOTAL DEPTH: :RECORD EEN�PROVIDED TOTHE WELL OWNER. u
III DOES WELL REPLACE EXISTING WELL? YES❑ NO
•SIGNATURE OF CERTIFIED WELL CONTRACTOR DATE
' c. WATER LEVEL Below Top of Casing: -3p _FT.
(Use"+"if Above Top of Casing) If :PRINTED NAME OF P SON CONSTRUCTING THE WELL
Form GW-1b
Submit the originalAo the Division of Water -Attn1 Infbtiklotion Mgt,, Rev.11108
1617 Mail Service Ceriter-Raleighi;K 27§99-1612 ;si�i gQ 0�
1

1
Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
APPENDIX D
' MONITORING WELL DEVELOPMENT RECORDS
1
1
1

1
1 ArMACTEC
' MACTEC ENGINEERING AND CONSULTING,INC.
MONITORING WELL SANIPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-14D
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 62.85 _FT<measured ell tag/drillers log-circle one)
SCREENED INTERVAL 55-60 bgs MEASURING POINT FOR DEPTH Ton of casing
' DEPTH TO GROUNDWATER(DGW) 36.98
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 25.87
CASING DIAMETER 2 IN.
' ONE STANDING WELL VOLUME= 4.22 gal.
(NOTE%a"=0.0102G/FT: N"=0.023 G/FT: 1"=0,041G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
THREE STANDING WELL VOLUMES= 12.65 FIVE STANDING WELL VOLUMES= 21.10
' METHOD OF WELL EVACUATION: BAIZE /PUMP/ THER: TYPE
TOTAL VOLUME OF WATER REMOVED: 70 GAL.
' WELL TYPE: FLUSH MOUNT r OVE GRAD COMMENTS
LOCKING CAP YES X NO No sample collected/purged for
PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
1 Time Volume pH Temp Cond. Dis.O2 Turbidity ORP Notes
( C) (µS/cm) (mg/L) (NTU) (MV)
' 30 5.68 18.00 .682 0.10 234
35 5.66 18.10 .685 0.03 115
' 40 5.65 18.10 .687 0.03 90
45 5.65 18.50 .688 0.02 90
50 5.65 18.50 .690 0.02 87
' 55 5.59 18.20 -- -- 55 Meter Malfunction
60 5.57 16.30 .709 0.02 44
1 65 5.58 17.10 .727 0.01 21
70 5.62 17.20 .734 0.01 14

OMACTEC
' MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-13S
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
' FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 21.12 FTQASURING
well tag I drillers log—circle one)
SCREENED INTERVAL 3-18 bps. POINT FOR DEPTH Top of casing
DEPTH TO GROUNDWATER(DGW) 5.70
' LENGTH OF WATER COLUMN(LWC)=TWD—DGW= 15.42
CASING DIAMETER 2 IN.
' ONE STANDING WELL.VOLUME= 2.51 gal.
(NOTE%i"=0.0102G/FT: Y4"=0.023 G/FT: 1"=0.041 GIFT:2"=0.163 G/FT: 4"=0.653 GIFT: 6"= 1.46 GIFT)
' THREE STANDING WELL VOLUMES= 7.54 FIVE STANDING WELL VOLUMES= 12.55
METHOD OF WELL EVACUATION: BAILER(PUMP OTHER: TYPE
TOTAL VOLUME OF WATER REMOVED: 60 GAL.
' WELL TYPE: FLUSH MOUNT ABOVE GRADE COMMENTS
LOCKING CAP YES X NO No sample collected1purged for
' PROTECTIVE POST/ABUTMENT YES NO_X development only
NONPOTABLE LABEL YES X NO
1D PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
Temp Cond. Dis.OZ Turbidity ORP
Time Volume pH CC) (µS/cm) (mg/L) (NTU) (mom Notes
' 35 5.96 19.70 .200 10.56 -10 Turbidity meter
45 6.27 19.00 .098 10.89 -10 Malfunction
'
50 6.49 18.60 .091 10.91 -10
55 6.52 18.40 .090 10.77 -10
60 6.54 18.30 .089 10.83 -10 _

ArMACTEC
' MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
' MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-13D
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 48.61 FT. meas well tag/drillers log-circle one)
SCREENED INTERVAL 41.5-46.5 bgS _ EASURING POINT FOR DEPTH Top of Casing
DEPTH TO GROUNDWATER(DGW) 3.59
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 45.02
CASING DIAMETER 2 IN.
' ONE STANDING WELL VOLUME= 7.34 gal.
(NOTE %2"=0.0102G/FT: Y4"=0.023 G/FT: 1"=0.041 G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES= 22.01 FIVE STANDING WELL VOLUMES= 36.70
METHOD OF WELL EVACUATION: BAILER(E)OTHER: TYPE
TOTAL VOLUME OF WATER REMOVED: 85 GAL.
' WELL TYPE: FLUSH MOUNTABOVE ED?
COMMENTS
LOCKING CAP NO No sample collected/purged for
' PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Time Volume pH Temp Cond. Dis.02 Turbidity ORP notes
(C) (PS/cm) (mg/L) (NTU) (mV)
' 45 6.76 18.60 .098 -- 182
50 6.72 17.60 .098 12.03 202
' 55 6.61 17.40 .093 -- 140
60 6.60 17.60 .093 11.65 272
65 - -- - -- -
' 70 6.51 17.10 .092 11.81 30
75 6.54 17.10 .092 11.58 77
' 80 6.55 17.20 .091 11.29 68
85 6.55 1 17.00 .091 11.52 9

MACTEC
' MACTEC ENGINEERING AND CONSULTING,INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
' MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-12S
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 25.32 (measured well tag/drillers log—circle one)
SCREENED INTERVAL 7-22 ASURING POINT FOR DEPTH Top of casing
' DEPTH TO GROUNDWATER(DGW) 14.28
LENGTH OF WATER COLUMN(LWC)=TWD—DGW= 11.04
CASING DIAMETER 2 IN.
ONE STANDING WELL VOLUME= 1.80 gal.
(NOTE W'=0.0102G/FT: Y,,"=0.023 G/FT: 1"=0.041G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES= 5.40 FIVE STANDING WELL VOLUMES= 9.00
METHOD OF WELL EVACUATION: BAILER PUMP OTHER: TYPE
TOTAL VOLUME OF WATER REMOVED: GAL.
WELL TYPE: FLUSH MOUNT/ OVE GRADE COMMENTS
LOCKING CAP X NO No sample collected/purged for
' PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Temp Cond. Dis.02 Turbidity ORP
Time Volume pH (°C) (pS/cm) (mg/L) (NTU) (mom Notes
' 140
1

4rMACTEC
MACTEC ENGINEERING AND CONSULTING, INC.
' MONITORING WELL SAMPLING FIELD DATA WORKSHEET
1 MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-12D
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
1 TOTAL WELL DEPTH(TWD) 98.59 F (measured ell tag/drillers log-circle one)
SCREENED INTERVAL 90-95 bgs MEASURING POINT FOR DEPTH Top of casing
1 DEPTH TO GROUNDWATER(DGW) 15.21
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 83.38
CASING DIAMETER 2 IN.
1 ONE STANDING WELL VOLUME= 13.59 gal.
(NOTE%z"=0.0102G/FT: Y4"=0.023 G/FT: 1"=0.041G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
1 THREE STANDING WELL VOLUMES= 40.77 FIVE STANDING WELL VOLUMES= 67.95
METHOD OF WELL EVACUATION: BAILE /PUMP OTHER: TYPE
' TOTAL VOLUME OF WATER REMOVED: 85 GAL,
WELL TYPE: FLUSH MOUNTOVE GRAD COMMENTS
LOCKING CAP X NO No sample collected/purged for
1 PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
' ID PLATE YES X NO
WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Time Volume pH Temp Cond. Dis.02 Turbidity ORP Notes
( C) (µS/cm) (mg/L) (NTU) (m V)
' 25 5.97 19.60 .090 12.84 123 Pum Dry
Pumped Dry Before
30 5.88 18.70 .052 12.81 848 35-gal
1 35 5.84 18.90 .043 11.64 121 Pumped
40 5.81 17.60 .038 12.35 179
' 45 5.74 17.30 .037 12.35 232
50 5.69 17.60 .033 0.00 83
1 55 5.65 18.60 .032 0.00 114
60 5.67 20.00 .032 0.00 14
65 5.69 18.00 .031 0.00 70
1 70 5.58 19.30 .029 0.00 28
75 5.61 19.20 .029 0.01 49
' 80 5.67 18.10 .029 0.01 23
85 5.58 17.80 .028 0.00 10

1
4VMACTEC
MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-11S
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE NIA
' FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 54.38 measure well tag/drillers log-circle one)
SCREENED INTERVAL 37-52 bgs MEASURING POINT FOR DEPTH Top of casing
' DEPTH TO GROUNDWATER(DGW) 43.77
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 10.61
CASING DIAMETER 2 IN.
' ONE STANDING WELL VOLUME= 1.73 gal.
(NOTE%z"=0.0102G/FT: X"=0.023 GIFT: 1"=0.041 G/FT:2"=0.163 GTT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES= 5.19 FIVE STANDING WELL VOLUMES= 8.65
METHOD OF WELL EVACUATION: BAILER(S)OTHER: TYPE
TOTAL VOLUME OF WATER REMOVED: 60 GAL.
' WELL TYPE: FLUSH MOUNT OVE GRAD COMMENTS
LOCKING CAP X NO No sample collected/purged for
PROTECTIVE POST/ABUTMENT YES X NO development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Temp Cond. Dis.O2 Turbidity ORP
Time Volume pH (°C) (µS/cm) (mg/L) (NTU) (mV) Notes
' 25 7.11 19.21 .087 .02 230
30 6.77 18.50 .068 .04 63
' 35 6.60 17.90 .060 .04 20
40 6.66 18.30 .058 .04 10
45 6.57 17.90 .055 .04 9
' 50 6.54 18.00 .053 .04 4
55 6.41 18.00 .050 .03 2
' 60 6.40 17.30 .04±.04 2

4rMACTEC
MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-11D
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
' FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
' TOTAL WELL DEPTH(TWD) 93.32 FT.QURING
well tag/drillers log—circle one)
SCREENED INTERVAL 85.5-90.5 bgs POINT FOR DEPTH Top of casing
' DEPTH TO GROUNDWATER(DGW) 43.40'
LENGTH OF WATER COLUMN(LWC)=TWD—DGW= 49.92'
CASING DIAMETER 2 IN.
ONE STANDING WELL VOLUME= 8.14 gal.
(NOTE%z"=0.0102G/FT: 3/,"=0.023 G/FT: 1"--0.041 G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES= 24.41 FIVE STANDING WELL VOLUMES= 40.70
(aMETHOD OF WELL EVACUATION: BAILER PUMPj'OTHER: TYPE
TOTAL VOLUME OF WATER REMOVED: ��V//60 GAL.
' WELL TYPE: FLUSH MOUNTOVE GRAD COMMENTS
LOCKING CAP X NO No sample collected/purged for
' PROTECTIVE POST/ABUTMENT YES--X—NO development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE X HIGH
1 Time Volume pH Temp Cond. Dis.O2 Turbidity ORP Notes
(°C) (µS/cm) (mg/L) (NTU) (mV)
' 60 7.84 18.90 .071 .04 4.80
t
1

OMACTEC
' MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
' MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-10S
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
' FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
TOTAL WELL DEPTH(TWD) 29.44 FT.�/well tag/drillers log—circle one)
SCREENED INTERVAL 12-27 bias MEASURING POINT FOR DEPTH top of casing
' DEPTH TO GROUNDWATER(DGW) 16.64 below TOC
LENGTH OF WATER COLUMN(LWC)=TWD—DGW= 12.80
CASING DIAMETER 2 IN.
1 ONE STANDING WELL VOLUME= 2.09 gal.
(NOTE%"=0.0102G/FT: N"=0.023 G/FT: 1"=0.041 G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
THREE STANDING WELL VOLUMES= 6.26 FIVE STANDING WELL VOLUMES= 10.45
METHOD OF WELL EVACUATION: BAILER UMP OTHER: TYPE
TOTAL VOLUME OF WATER REMOV 60 GAL.
' WELL TYPE: FLUSH MOUNT/ OVE GRADE COMMENTS
LOCKING CAP X NO No sample collected/purged for
' PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Time Volume pH Temp Cond. Dis.O2 Turbidity ORP Notes
CC) (µS/cm) (mg/L) (NTU) (mV)
' 40 6.13 19.40 0.163 0.01 14
45 6.09 18.20 .067 0.01 3
' 50 6.11 18.00 .057 0.01 1
55 5.96 17.20 .051 0.01 1
60 5.97 17.50 .048 1 0.01 1

1
MACTEC
' MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER. 6228-10-5284 MONITORING WELL NUMBER MW-IOD
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
TOTAL WELL DEPTH(TWD) 87.69 F (measured well tag/drillers log-circle one)
SCREENED INTERVAL 80.4-85.4 bgs MEASURING POINT FOR DEPTH Top of casing
' DEPTH TO GROUNDWATER(DGW) 16.23
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 71.46
CASING DIAMETER 2 IN.
ONE STANDING WELL VOLUME= 11.65 gal.
(NOTE %z"=0.0102G/FT:'/:"=0.023 G/FT: 1"=0.041G/FT:2"=0.163 G/FT: 4"=0.653G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES 39.94 FIVE STANDING WELL VOLUMES= 58.25
METHOD OF WELL EVACUATION: BAILER(9/OTHER: TYPE
TOTAL VOLUME OF WATER REMO 80 GAL.
' WELL TYPE: FLUSH MOUNT ABOVE:fx
E COMMENTS
LOCKING CAP NO No sample collected/pursted for
' PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
' WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
' Temp Cond. Dis.O2 Turbidity ORP
Time Volume pN (°C) Wskm) (mg/L) (NTU) (mV) Notes
30 6.82 20.10 .090 11.38 320
35 6.80 19.70 .082 11.38 183
' 40 6.73 19.60 .077 11.38 172
45 6.63 18.70 .073 0.03 144
'
50 6.63 19.00 .071 0.02 124
55 6.63 18.70 .070 0.05 140
60 6.98 18.30 .107 11.28 90
65 6.78 17.80 .078 .003 58
70 6.62 17.70 .068 11.96 5
' 75 6.65 18.00 .065 0.04 2
80 6.62
::[:l
7.60 .065 11.59 5
1

4tMACTEC
' MACTEC ENGINEERING AND CONSULTING, INC.
MONITORING WELL SAMPLING FIELD DATA WORKSHEET
MACTEC PROJECT NUMBER 6228-10-5284 MONITORING WELL NUMBER MW-14S
SITE NAME Duke Marshall Steam Station DATE TIME OF SAMPLE N/A
FIELD PERSONNEL Mark Filardi WEATHER CONDITIONS
TOTAL WELL DEPTH(TWD) 47.13 FT (measured well tag/drillers log-circle one)
SCREENED INTERVAL 28-43 bgs SURING POINT FOR DEPTH Top of casing
DEPTH TO GROUNDWATER(DGW) 36.36
LENGTH OF WATER COLUMN(LWC)=TWD-DGW= 10.77
CASING DIAMETER 2 IN.
' ONE STANDING WELL VOLUME= 1.76 gal.
(NOTE%s"=0.0102G/FT: Y4"=0.023 G/FT: F'=0.041 G/FT:2"=0.163 G/FT: 4"=0.653 G/FT: 6"= 1.46 G/FT)
' THREE STANDING WELL VOLUMES= 5.27 FIVE STANDING WELL VOLUMES= 8.80
METHOD OF WELL EVACUATION: BAILER PUMP OTHER: TYPE
TOTAL VOLUME OF WATER REMO 90 GAL.
' WELL TYPE: FLUSH MOUNT ABOVE GRADE COMMENTS
LACKING CAP X NO No sample collected/purged for
PROTECTIVE POST/ABUTMENT YES NO X development only
NONPOTABLE LABEL YES X NO
ID PLATE YES X NO
WELL INTEGRITY SATISFACTORY YES X NO
WELL YIELD LOW MODERATE HIGH X
1 Time Volume pH Temp Cond. Dis.O= Turbidity ORP Notes
(C) (µS/cm) (mg/L) (NTU) (mV)
40 5.96 18.50 .839 13.17 538
45 5.64 17.70 .857 12.55 138
' 50 5.59 17.60 .855 .03 100
55 5.60 17.50 .866 .01 117
' 60 5.55 17.50 .870 .00 27
65 5.56 17.50 0.91 12.35 27 DO malfunction
70 5.60 17.50 0.92 11.50 20
75 5.50 16.60 0.92 .02 20
80 5.49 17.00 0.93 .02 250
' 85 5.52 17.60 0.92 15.97 10
90 5.47 17.60 0.93 12.30 23

' Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
1
1
' APPENDIX E
PHOTOGRAPHS OF COMPLETED WELL PAIRS
1
1
1
1
1

/ �f
1 �
.* � a
a 0�7:.�74,
s
• / pair 1
i
Photo
pair • 1 1

t
i.
Photo pair MW-14S(Left)and MW-14D(Right)
'e
Photo •. - • i

1 1
�C
4 � -
Photo .

' Ash Basin Monitoring Well Installation Report August 26,2010
Marshall Steam Station
Terrell, Catawba County,North Carolina
MACTEC Project 6228-10-5284
1
' APPENDIX F
SLUG TEST DATA
t
1
1

i
1 1.
1 �
1 � °
C 0.1
E
U
f4
d
1 N
.0
N
i 0.01
CO
H
1
0.001
i 0. 200. 400. 600. 800. 1000.
Time (sec)
iRISING HEAD TEST
iPROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
i Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-14S
iTest Date: 8/16/2010
AQUIFER DATA
iSaturated Thickness: 10.77 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-14S)
i Initial Displacement: 1.06 ft Static Water Column Height: 10.77 ft
Total Well Penetration Depth: 10.77 ft Screen Length: 10.77 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
' Gravel Pack Porosity: 0.28
SOLUTION
i Aquifer Model: Unconfined Solution Method: Dagan
K = 0.0008911 cm/sec y0 = 0.5161 ft

1
' 10.
1
1 �
c
E 1.
U
tp
Q
°
EPO
q]❑
to
❑ ❑
0.1
' 0. 200. 400. 600. 800. 1000.
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-14S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 10.77 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-14S)
' Initial Displacement: 1.06 ft Static Water Column Height: 10.77 ft
Total Well Penetration Depth: 10.77 ft Screen Length: 10.77 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0009566 cm/sec y0 = 0.6086 ft
t

10.
1
1.
c
a�
E
U
aM
D
0.1 °
°
° °
0
1
0.01
' 0. 140. 280. 420. 560. 700.
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-14D
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 25.87 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-14D)
' Initial Displacement: 1.111 ft Static Water Column Height: 25.87 ft
Total Well Penetration Depth: 25.87 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.0006479 cm/sec y0 = 0.8376 ft

' 10.
1.
c
(D
E
m
a
0.1 °
°
°
1
0.01
0. 140. 280. 420. 560. 700.
Time (sec)
' RISING HEAD TEST
PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-14D
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 25.87 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-14D)
' Initial Displacement: 1.111 ft Static Water Column Height: 25.87 ft
Total Well Penetration Depth: 25.87 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0006015 cm/sec y0 = 0.9218 ft

1 �
C °
❑ ° ❑ ❑ ❑
0.1 ❑ ° ❑ ❑
co
CL
0.01
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
' RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-13S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 15.42 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-13S)
' Initial Displacement: 0.954 ft Static Water Column Height: 15.42 ft
Total Well Penetration Depth: 15.42 ft Screen Length: 15. ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.0002725 cm/sec y0 = 0.4048 ft

0000000°°°
°
0.1 ° ° ° ° ° °
° ° ° °
E
U
cc
Q
N
O
1 O
0.01
(0
H
0.001
0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
1 PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-09-5100
Location: Marshall Steam Station
Test Well: MW-13S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 15.42 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-13S)
1 Initial Displacement: 0.954 ft Static Water Column Height: 15.42 ft
Total Well Penetration Depth: 15.42 ft Screen Length: 15. ft
Casing Radius: 0.0833 ft Well Radius: 0.0833 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Dagan
K = 7.376E-5 cm/sec y0 = 0.4439 ft

1.
c °
° ° °
° °
0.1 °
° ° °
m
CL
O
1
0.01
0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-13S
1 Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 15.42 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-13S)
Initial Displacement: 0.954 ft Static Water Column Height: 15.42 ft
Total Well Penetration Depth: 15.42 ft Screen Length: 15. ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0002399 cm/sec y0 = 0.5024 ft

1.
1
i
E 0.1
' U
Q
N ❑ ❑
1 ❑
0 1
13
❑ ❑ ❑
i ❑
❑ ❑
❑
0.01
0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
i PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-13D
' Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 45.02 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-13D)
Initial Displacement: 0.837 ft Static Water Column Height: 45.02 ft
Total Well Penetration Depth: 45.02 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.0007045 cm/sec y0 = 0.5309 ft

1
1.
1
c
m
0.1
' U
N
O.
VJ ❑
❑
❑❑❑❑
❑ ❑ ❑
I0 0 ❑
1 ❑
0.01
0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time(sec)
RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
1 Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-13D
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 45.02 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-13D)
Initial Displacement: 0.837 ft Static Water Column Height: 45.02 ft
Total Well Penetration Depth: 45.02 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0007923 cm/sec y0 = 0.6391 ft
1

I 10.
I
1.
I
E
U
Id
a
U
❑ ❑
I
0.01
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-12S
' Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 11.04 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-12S)
' Initial Displacement: 1.257 ft Static Water Column Height: 11.04 ft
Total Well Penetration Depth: 11.04 ft Screen Length: 11.04 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.001445 cm/sec y0 = 0.3676 ft

1
1.
1
1 �
0.1 °°° ° °° ° ° o
U °
N
CL
1 N
0
E
L
' 0.01
cc
L
H
1
1
0.001
0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-12S
Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 11.04 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-12S)
' Initial Displacement: 1.257 ft Static Water Column Height: 11.04 ft
Total Well Penetration Depth: 11.04 ft Screen Length: 11.04 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Dagan
K = 0.001787 cm/sec y0 = 0.4844 ft

1
10.
1
1
1.
c
a�
E
1 M
U
N
Q
N
0 16�60 ❑ °
' ° °O° °p❑°❑ ❑
0.1 ❑ ° °° ❑ °
❑
0.01
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
' RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-12S
Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 11.04 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-12S)
' Initial Displacement: 1.257 ft Static Water Column Height: 11.04 ft
Total Well Penetration Depth: 11.04 ft Screen Length: 11.04 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.001557 cm/sec y0 = 0.4443 ft

1
1.
c
a�
U ❑
' C ❑
u�i ❑
1
1
0.1
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-12D
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 83.38 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-12D)
' Initial Displacement: 1. ft Static Water Column Height: 83.38 ft
Total Well Penetration Depth: 83.38 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.0001302 cm/sec y0 = 0.8428 ft

°
°
c
m
E
' CU o
U
Q o
N
1
0.1
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-12D
' Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 83.38 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-12D)
' Initial Displacement: 1. ft Static Water Column Height: 83.38 ft
Total Well Penetration Depth: 83.38 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0001336 cm/sec y0 = 0.8583 ft

1.
1 ❑
0
❑
ami Cb
_
' a 0.1 �� ❑ ❑
a�
N ❑ ❑ ❑
Cc ❑
` ❑ ❑ ❑ ❑ ❑ ❑
Z ° ❑
I
0.01
0. 180. 360. 540. 720. 900.
' Time (sec)
' RISING HEAD TEST
PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-11S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 10.61 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-11S)
' Initial Displacement: 0.955 ft Static Water Column Height: 10.61 ft
Total Well Penetration Depth: 10.61 ft Screen Length: 10.61 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
' Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.002047 cm/sec y0 = 0.3804 ft

1 �
❑
lb
0.1
DO 0
' E ❑ ❑° ❑❑°
V ❑ ❑ ❑ ❑ ❑ ° ❑ ❑ ❑ ° ❑ ❑ ❑
RS ❑ ❑ °
CL °
1 �
a�
E
0
c 0.01
m
H
0.001
' 0. 180. 360. 540. 720. 900.
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-11S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 10.61 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-11S)
Initial Displacement: 0.955 ft Static Water Column Height: 10.61 ft
Total Well Penetration Depth: 10.61 ft Screen Length: 10.61 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
' Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Dagan
K = 0.001285 cm/sec y0 = 0.387 ft
1

1 ❑
❑
' -p ❑
CO C[b
_
' 0.1 CPO
❑
N ❑ ❑El ❑
fC ❑
E ❑ ° ❑ ❑ ❑ ❑
' ❑ ❑ ❑ ❑ ❑ ❑ ❑
Z ° 0 13 ❑
1
0.01
t 0. 180. 360. 540. 720. 900.
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-11S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 10.61 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-11S)
' Initial Displacement: 0.955 ft Static Water Column Height: 10.61 ft
Total Well Penetration Depth: 10.61 ft Screen Length: 10.61 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.00154 cm/sec y0 = 0.4687 ft
1

' 1.
ami
0
_ � o
0.1 0
a�
N
E
L
O
Z
1
1
0.01
' 0. 1.4E+3 2.8E+3 4.2E+3 5.6E+3 7.0E+3
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-11D
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 49.92 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-11 D)
Initial Displacement: 2.627 ft Static Water Column Height: 49.92 ft
Total Well Penetration Depth: 49.92 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
' Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Hvorslev
K = 3.448E-5 cm/sec y0 = 1.08 ft

! 1.
!
v °
ca °
° ❑
_ ❑ ° ❑
-0 0.1 °
a� °
N
E
O
Z
!
0.01
' 0. 1.4E+3 2.8E+3 4.2E+3 5.6E+3 7.0E+3
Time (sec)
RISING HEAD TEST
! PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
! Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-11D
Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 49.92 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-11 D)
' Initial Displacement: 2.627 ft Static Water Column Height: 49.92 ft
Total Well Penetration Depth: 49.92 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
1 Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 3.428E-5 cm/sec y0 = 1.1 ft

10.
1.
c
Q
E
U
fC
CL
e
0.1
°
°° °
° 0
° ° °
° °
° o °
1 °
0.01
1 0. 160. 320. 480. 640. 800.
Time (sec)
' RISING HEAD TEST
' PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-10S
' Test Date: 8/16/2010
AQUIFER DATA
' Saturated Thickness: 12.8 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-10S)
Initial Displacement: 1.506 ft Static Water Column Height: 12.8 ft
Total Well Penetration Depth: 12.8 ft Screen Length: 12.8 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.001361 cm/sec y0 = 0.7673 ft

0.1
°
EE °
❑
V ❑❑ ❑
f0 ° 0 0 ❑
d ° ❑1 ❑ ❑ ❑ ❑
'O °
N
O
0.01 °
f0
H
0.001
1 0. 160. 320. 480. 640. 800.
Time (sec)
RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
' Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-10S
' Test Date: 8/16/2010
AQUIFER DATA
1 Saturated Thickness: 12.8 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-10S)
Initial Displacement: 1.506 ft Static Water Column Height: 12.8 ft
Total Well Penetration Depth: 12.8 ft Screen Length: 12.8 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
IGravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Dagan
K = 0.0009221 cm/sec y0 = 0.7748 ft

110- 1 111
1.
r
E
U
f�
CL
N °
0.1
°❑
°
° ° ° °
°
Cl
° ° °
°
°
0.01
1 0. 160. 320. 480. 640. 800.
Time (sec)
RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-10S
1 Test Date: 8/16/2010
AQUIFER DATA
1 Saturated Thickness: 12.8 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-10S)
Initial Displacement: 1.506 ft Static Water Column Height: 12.8 ft
Total Well Penetration Depth: 12.8 ft Screen Length: 12.8 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
1 Gravel Pack Porosity: 0.28
SOLUTION
1 Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.000749 cm/sec y0 = 0.7498 ft

1 10.
1
1
1
E 1.
1 cc
m �
CL
Mn
0
0
000
1
0.1
1 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
RISING HEAD TEST
PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-10D
' Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 71.46 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-10D)
Initial Displacement: 1.148 ft Static Water Column Height: 71.46 ft
Total Well Penetration Depth: 87.69 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
1 Gravel Pack Porosity: 0.28
SOLUTION
Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.0001192 cm/sec y0 = 0.856 ft

1
10.
c
(D
(D 1.
1 U
fC
CL
C °
Q °°p
1 °
o\
0.1
' 0. 400. 800. 1.2E+3 1.6E+3 2.0E+3
Time (sec)
' RISING HEAD TEST
PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-10D
Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 71.46 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA(MW-10D)
1 Initial Displacement: 1.148 ft Static Water Column Height: 71.46 ft
Total Well Penetration Depth: 87.69 ft Screen Length: 5. ft
Casing Radius: 0.0833 ft Well Radius: 0.157 ft
Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Bouwer-Rice
K = 0.0001129 cm/sec y0 = 0.8209 ft
1

1 10.
1
c
m
aa) 1.
U
N
CL
I Q
❑
\1 ,
❑❑ ❑
° °0.1 ❑ ❑ ❑
0. 200. 400. 600. 800. 1000.
Time (sec)
' RISING HEAD TEST
1PROJECT INFORMATION
Company: MACTEC
Client: Duke Energy
Project: 6228-10-5284
Location: Marshall Steam Station
Test Well: MW-14S
Test Date: 8/16/2010
AQUIFER DATA
Saturated Thickness: 10.77 ft Anisotropy Ratio (Kz/Kr): 1.
WELL DATA (MW-14S)
Initial Displacement: 1.06 ft Static Water Column Height: 10.77 ft
Total Well Penetration Depth: 10.77 ft Screen Length: 10.77 ft
Casing Radius: 0.0833 ft Well Radius: 0.26 ft
1 Gravel Pack Porosity: 0.28
SOLUTION
' Aquifer Model: Unconfined Solution Method: Hvorslev
K = 0.001007 cm/sec y0 = 0.4034 ft

` Appendix B - Permit
Condition A(11 ) Attachment
' XX, Version 1 . 1 , June 15,
2011

A. (6)GROUNDWATER MONITORING WELL CONSTRUCTION AND SAMPLING
1. The permittee shall conduct groundwater monitoring as may be required to determine
the compliance of this NPDES permitted facility with the current groundwater Standards
found under 15A NCAC 2L.0200
2. WELL CONSTRUCTION. Within 120 days of permit issuance, monitoring wells, as
proposed on Attachment XX,shall be installed to monitor groundwater quality.
a. Monitoring wells shall be constructed in accordance with 15A NCAC 02C .0108
(Standards of Construction for Wells Other than Water Supply) and any other
jurisdictional laws and regulations pertaining to well construction. The general
locations for all monitoring wells are indicated on Attachment XX.
1
b. Within 30 days of completion of well construction, a completed Well Construction Record (Form GW-1) must be submitted for each monitoring well
to Division of Water Quality, Aquifer Protection Section, 1636 Mail Service
Center, Raleigh,NC 27699-1636.
C. The Mooresville Regional Office, telephone number [phone], shall
approve the location of new monitoring wells prior to installation. The regional
office shall be notified at least 48 hours prior to the construction of any
monitoring well and such notification to the Aquifer Protection Section's
regional supervisor shall be made from 8:00 a.m. until 5:00 p.m. on Monday
through Friday,excluding State Holidays.
d. Within 60 days of completion of the monitoring wells, the Permittee shall
submit two original copies of a site map with a scale no greater than 1-inch
equals 500 feet. At a minimum, the map shall include the following
' information:
i. The location and identity of each monitoring well.
Ii. The location of major components of the waste disposal system.
iii. The location of property boundaries within 500 feet of the disposal
areas.
iv. The latitude and longitude of the established horizontal control
monument.
V. The elevation of the top of the well casing (i.e., measuring point)
relative to a common datum.
vi. The depth of water below the measuring point at the time the
measuring point is established.
vii. The location of compliance and review boundaries.
viii. The date the map is prepared and/or revised.
' ix. Topographic contours in no more than ten(10)foot intervals
e. The above information should be overlaid on the most recent aerial photograph
taken of the site. Control monuments shall be installed in such a manner and
1 made of such materials that the monument will not be destroyed due to
activities taking place on the property. The map and any supporting
documentation shall be sent to the Division of Water Quality,Aquifer Protection
Section,1636 Mail Service Center, Raleigh,NC 27699-1636.
' f. The well(s) must be constructed by a North Carolina Certified Well Contractor,
the property owner, or the property lessee according to General Statutes 87-
98.4. If the construction is not performed by a certified well contractor, the
I property owner or lessee, provided they are a natural person, must physically
perform the actual well construction activities.
' NC0004987—Marshall Steam Station
Groundwater Monitoring Plan Page 1 of 4 6 15 11

g. The monitoring wells shall be regularly maintained. Such maintenance shall
include ensuring that the well caps are rust-free and locked at all times, the
outer casing is upright and undamaged,and the well does not serve as a conduit
for contamination.
I 3. GROUNDWATER SAMPLING AND COMPLIANCE. Monitoring wells shall be sampled after
construction and thereafter at the frequencies and for the parameters as specified in
Attachment XX. All maps, well construction forms, well abandonment forms and
' monitoring data shall refer to the permit number and the well nomenclature as
provided on Attachment XX.
a. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all
laboratory analyses for the required effluent, groundwater or surface water
parameters.
b. The measurement of water levels shall be made prior to purging the wells. The
depth to water in each well shall be measured from the surveyed point on the
top of the casing. The measurement of pH shall be made after purging and prior
to sampling for the remaining parameters.
C. The measuring points (top of well casing) of all monitoring wells shall be
' surveyed to provide the relative elevation of the measuring point for each
monitoring well. The measuring points (top of casing) of all monitoring wells
shall be surveyed relative to a common datum.
d. For monitoring wells that are not located at the Compliance Boundary, the
Compliance Monitoring Form (GW-59CCR) is not required. However, predictive
calculations or modeling shall be submitted to the Regional Office annually(i.e.
' 12 months after permit issuance)demonstrating groundwater quality standards
at the Compliance Boundary.
e. Two copies of the monitoring well sampling shall be submitted on a Compliance
Monitoring Form (GW-59CCR), and received no later than the last working day
of the month following the sampling month. Copies of the laboratory analyses
shall be kept on site, and made available upon request. The Compliance
Monitoring Form (GW-59CCR) shall include this permit number and the
appropriate well identification number. All information shall be submitted to
the following address:
1Division of Water Quality
Information Processing Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
f. For groundwater samples that exceed the ground water quality standards in
15A NCAC 02L.0202,the Regional Office shall be contacted within 30 days after
submission of the groundwater monitoring report; an evaluation may be
required to determine the impact of the waste disposal activities. Failure to do
' so may subject the permittee to a Notice of Violation,fines,and/or penalties.
' NC0004987-Marshall Steam Station
Groundwater Monitoring Plan Page 2 of 4 &15 11

4. COMPLIANCE BOUNDARY. The compliance boundary for the disposal system shall be
specified in accordance with 15A NCAC 02L .0107(a). This disposal system was
individually permitted prior to December 30, 1983;therefore,the compliance boundary
is established at either 500 feet from the effluent disposal area, or at the property
boundary, whichever is closest to the effluent disposal area. An exceedance of
groundwater standards at or beyond the compliance boundary is subject to remediation
action according to 15A NCAC 02L.0106(c)as well as enforcement actions in accordance
' with North Carolina General Statute 143-215.6A through 143-215.6C.
1
1
' NC0004987—Marshall Steam Station
Groundwater Monitoring Plan Page 3 of 4 615 11

1
ATTACHMENT XX— GROUNDWATER MONITORING PLAN
1 Permit Number: NCO004987 Version 1.1
WELL PARAMETER DESCRIPTION FREQUENCY
1 NOMENCLATURE
Monitoring Wells: Antimony Chromium Nickel Thallium
MW-4,MW-413,MW-105, Arsenic Copper Nitrate Water Level
1 MW-IOD,MW-11S,MW- Barium Iron PH Zinc February,June.
11D,MW-125,MW-12D, Boron Lead Selenium October
MW-135,MW-13D,MW- Cadmium Manganese 1 Sulfate
145,MW-14D Chloride Mercury TDS
1 Note 1: For locations of monitoring wells,see attached map.
' Note 2:Monitoring revisions may be considered,as applicable,if there are no significant detections prior to permit
renewal.
1
i
1
1
1
1
1
1
1
NC0004987—Marshall Steam Station
Groundwater Monitoring Plan Page 4 of 4 6 15111

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411
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It
ntv
ING a,
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MISS

' Appendix C - Monitoring Well
Locations

1
1 004411-377814 Marshall Stearn Station Monitoring Well Locations
1 Description Northing Easting Elevation Description Elevatioin
TOP OF PVC MW-41) 686715.82 1414462.36 866.74 MAG NAIL SET MW41) 863.38
TOP OF PVC MW-4S 686723.33 1414467.78 866.42 MAG NAIL SET MW4S 864.26
1 TOP OF PVC MW-61) 682253.49 1417831.24 791.19 MAG NAIL SET MW-61) 788.16
TOP OF PVC MW-6S 682250.04 1417836.99 790.35 MAG NAIL SET MW-6S 787.47
1 TOP OF PVC MW-6 685227.06 1414674.45 919.65 MAG NAIL SET MW-6 917.18
TOP OF PVC MW-71) 681379.43 1417631.76 776.85 MAG NAIL SET MW-71) 773.04
TOP OF PVC MW-7S 681375.90 1417629.95 775.99 MAG NAIL SET MW-7S 773.11
1 TOP OF PVC MW-7 685380.11 1414418.05 859.16 MAG NAIL SET MW-7 856.56
TOP OF PVC MW-81) 680944.28 1417513.62 775.18 MAG NAIL SET MW-81) 771.42
TOP OF PVC MW-8S 680948.92 1417509.83 775.34 MAG NAIL SET MW-8S 771.65
1 TOP OF PVC MW-91) 680637.88 1417358.10 777.38 MAG NAIL SET MW-91) 774.35
TOP OF PVC MW-9S 680639.63 1417349.54 777.34 MAG NAIL SET MW-9S 774.28
TOP OF PVC MW-101) 681327.13 1418119.07 772.04 MAG NAIL SET MW-101) 770.00
1 TOP OF PVC MW-10S 681328.43 1418114.26 772.05 MAG NAIL SET MW-10S 769.75
TOP OF PVC MW-11D 682060.69 1411710.71 884.67 MAG NAIL SET MW-111) 882.12
TOP OF PVC MW-11S 682062.41 1411706.21 884.99 MAG NAIL SET MW-11S 882.29
1 TOP OF PVC MW-12D 683409.20 1410712.50 871.88 MAG NAIL SET MW-12D 869.37
TOP OF PVC MW-12S 683414.08 1410714.04 871.86 MAG NAIL SET MW-12S 869.23
TOP OF PVC MW-13D 685017.16 1410464.23 847.05 MAG NAIL SET MW-13D 844.53
i TOP OF PVC MW-13S 685021.83 1410462.33 847.49 MAG NAIL SET MW-13S 845.06
TOP OF PVC MW-14D 683626.47 1416999.23 811.43 MAG NAIL SET MW-14D 808.67
TOP OF PVC MW-14S 683629.12 1416995.37 811.29 MAG NAIL SET MW-14S 808.37
1
Notel:Coordinates shown are based on the North Carolina State Plane Coordinate System
1 Note2: Horizontal Datum of NC Grid NAD 1983(NSRS 2007)
Note3: Elevations shown are referenced to the NAVD 88 vertical datum
Note4:Coordinates and elevations shown are in U.S.Survey Foot
1 Note5:Coordinates and elevations shown only for as-built wells as requested by NCDENR
Note6: Mag nails set in concrete base of each well for future elevation checks
Note7:Survey information provided by Duke Energy
i
1
1
1
1
1