section page quality/aquifer protection/coal ash groundwater...stormwater outfalls are also...

45

Upload: others

Post on 09-Oct-2020

14 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located
Page 2: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

TABLE OF CONTENTS SECTION PAGE

Executive Summary

1.0 Introduction ..................................................................................................................... 1

2.0 Background ...................................................................................................................... 2

2.1 Plant and Ash Basin Description ............................................................................. 2

2.2 Description of Surrounding Properties .................................................................. 2

3.0 site geology and hydrogeology .................................................................................... 3

3.1 Generalized Site Hydrogeologic Conceptual Model ............................................ 3

3.2 Site Geology/Hydrogeology ..................................................................................... 4

3.3 Hydrogeologic Information for Flow Direction Determination ......................... 4

3.4 Flow Direction Determination Results ................................................................... 4

4.0 Drinking Water Well Survey Activities and Findings ............................................ 5

4.1 State Records Review ................................................................................................ 5

4.2 Federal/Other Records Review ................................................................................ 5

4.3 County and Utility Department Records Review ................................................. 6

4.4 Field Survey ................................................................................................................ 6

5.0 Summary of Findings ..................................................................................................... 7

6.0 References ......................................................................................................................... 8

List of Figures Figure 1 - Site Location Map Figure 2 - Site Layout Figure 3 - Drinking Water Supply Well Survey Map List of Tables Table 1 - Public and Private Water Supply Wells Table 2 - Parcel Ownership Information within Survey Radius List of Appendices Appendix A - EDR Report Appendix B - Example Survey Questionnaire

Page i P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 3: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

EXECUTIVE SUMMARY

Duke Energy Progress, Inc. (Duke Energy), owns and operates the Mayo Steam Electric Plant (Mayo Plant), located near Roxboro, in Person County, North Carolina. The Plant is a single unit, coal-fired electricity-generating facility. Coal combustion residues (CCR) have historically been managed in the Plant’s on-site ash basin. Dry ash has been hauled and disposed in the lined landfill located at the nearby Roxboro Steam Electric Plant (near Semora, NC). Beginning in Fall 2014, CCR from the Plant will be managed in a newly constructed on-site landfill.

In accordance with the requirements stipulated in Coal Ash Management Act 2014 – North Carolina Senate Bill 729 (August, 2014), a survey was conducted to identify drinking water supply wells and surface water bodies located downgradient of the ash basin, herein referred to as the potential area of interest. In addition, to satisfy the requirements of the Notice of Regulatory Requirements (NORR) received by Duke on August 13, 2014, potential water supply wells located within 0.5 mile of the Mayo Plant ash basin compliance boundary are also included.

Routine water level measurements and corresponding elevations from the groundwater compliance monitoring well network indicate that groundwater flows from the upland areas (the southwestern portion of the property) towards the northeast and Crutchfield Branch.

No public or private drinking water wells, or wellhead protection areas, are located within the potential area of interest. This finding is supported by field observations and a review of public records. Shallow groundwater flow across the Mayo Plant facility is from the west/southwest towards the northeast and Crutchfield Branch. Based on the anticipated groundwater flow path, none of the wells identified in the water well survey are located downgradient of the ash basin. Maps cross-referenced with tables providing parcel and ownership information for the survey area are provided for completeness, in accordance with the NORR.

P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 4: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

1.0 INTRODUCTION

Duke Energy Progress, Inc. (Duke Energy), owns and operates the Mayo Steam Electric Plant (Mayo Plant), located near Roxboro, in Person County, North Carolina (Figure 1). The Plant is a single unit, coal-fired electricity-generating facility. Coal combustion residues (CCR) have historically been managed in the Plant’s on-site ash basin (Figure 2). Dry ash has been hauled and disposed in the lined landfill located at the nearby Roxboro Steam Electric Plant (near Semora, NC). Beginning in Fall 2014, CCR from the Plant will be managed in a newly constructed on-site landfill.

Discharge from the ash basin is permitted by the North Carolina Department of Environment and Natural Resources (NCDENR) Division of Water Resources (DWR) under the National Pollution Discharge Elimination System (NPDES) Permit NC0038377.

SynTerra has completed a survey to identify water supply wells within 0.5 miles of the Mayo Plant ash basin compliance boundary (Figure 2). The compliance boundary for groundwater quality in relation to the ash basin 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.

This downgradient drinking water well survey report has been prepared to meet the requirements stipulated in Coal Ash Management Act 2014 – North Carolina Senate Bill 729 (August, 2014) and the Notice of Regulatory Requirements (NORR) (August 13, 2014).

As part of the survey, a questionnaire is being sent to owners of property within the survey area as directed by DWR. The purpose of the questionnaire is to determine if additional wells may be present in the area that were not observed or have not been previously reported. The questionnaire is also designed to collect additional information, such as well use and construction details. An addendum letter and updated information summarizing the questionnaire findings will be submitted to the DWR no later than November 7, 2014. The information available to date is herein provided.

Page 1 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 5: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

2.0 BACKGROUND

2.1 Plant and Ash Basin Description The Mayo Plant is a coal-fired electricity-generating facility located in Person County, North Carolina, near the City of Roxboro. The location of the plant is shown on Figure 1. The Mayo Plant started operations in 1983. The plant is located on Boston Road (US Highway 501) north of Roxboro. The northern plant property line extends to the North Carolina/Virginia state line. The overall topography of the Plant generally slopes toward the east (Mayo Reservoir) and northeast (Crutchfield Branch).

The Mayo Plant ash basin is approximately 153 acres in size with an earthen dike. Ash generated from the plant’s coal combustion is contained in the ash basin. The Mayo Plant NPDES permit (NC0038377) authorizes two discharges to Mayo Lake. Outfall 001 discharges cooling tower water and circulating water system discharge water. Outfall 002 is comprised of a number of streams including internal outfall 008 (cooling tower blowdown), internal outfall 009 (FGD blowdown), ash transport water, coal pile runoff, and other sources including water from wastewater treatment processes. Four stormwater outfalls are also authorized for Mayo Plant.

2.2 Description of Surrounding Properties Properties located within a 0.5 mile radius of the Mayo Plant compliance boundary are located in Person County, North Carolina and Halifax County, Virginia. The properties uses include residential, commercial, industrial, and agricultural.

Figure 2 depicts the properties surrounding the Mayo Plant.

Page 2 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 6: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

3.0 SITE GEOLOGY AND HYDROGEOLOGY

3.1 Generalized Site Hydrogeologic Conceptual Model The Mayo Plant is situated in the eastern Piedmont of north-central North Carolina. The Piedmont is characterized by well-rounded hills and rolling ridges cut by small streams and drainages. Elevations in the area of the Mayo Plant range between 570 feet above mean sea level (msl) near the Plant entrance along Boston Road to 360 feet msl in the Crutchfield Branch stream area on the north side of the Plant.

Geologically, the Plant is located at the contact between two regional zones of metamorphosed intrusive rocks: the Carolina Slate Belt (now referred to as Carolina Terrane) on the east and the Charlotte Belt (or Charlotte Terrane) to the west. The characteristics and genesis of the rocks of these regional metamorphic belts have been the subject of intense study for many years with various approaches employed to describe the geology in tectonic, structural, and/or litho-stratigraphic terms (Hibbard, et. al., 2001).

Rocks of Charlotte Terrane near the Plant are characterized by strongly foliated felsic mica gneiss and schist and metamorphosed intrusive rocks. Carolina Terrane rocks in the vicinity of the Plant are typically felsic meta-volcanics and meta-argillites. These conclusions are consistent with the description of the geologic nature of the area according to the Geologic Map of North Carolina (1985). The Geologic Map of North Carolina describes the felsic meta-volcanic rock as metamorphosed dacitic to rhyolitic flows and tuffs, light gray to greenish gray; interbedded with mafic and intermediate volcanic rock, meta-argillite and meta-mudstone. The felsic mica gneiss of the Charlotte Terrane is described as being interlayered with biotite and hornblende schist.

Rocks of the region, except where exposed in road cuts, stream channels, and steep hillsides, are covered with unconsolidated material formed from the in-situ chemical and physical breakdown of the bedrock. This unconsolidated material is referred to as saprolite or residuum. Direct observations at the Mayo Plant confirm the presence of residuum, developed above the bedrock, which is generally 10 to 30 feet thick. The residuum extends from the ground surface (soil zones) downward, transitioning through a zone comprised of unconsolidated silt and sand, downward through a transition zone of partially weathered rock in a silt/sand matrix, down to the contact with competent bedrock.

Groundwater within the area exists under unconfined, or water table, conditions within the residuum and/or saprolite zones and in the fractures and joints of the underlying

Page 3 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 7: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

bedrock. The water table and bedrock aquifers are interconnected. The residuum acts as a reservoir for water supply to the fractures and joints in the underlying bedrock.

3.2 Site Geology/Hydrogeology Geologically, the majority of the Mayo Plant, including the largest portion of the ash basin and Mayo Lake are situated in the Carolina Terrane (USGS, 2007), which typically consist of felsic meta-volcanics and meta-argillites. This description is consistent with site-specific observations from drilling activities at the Mayo Plant, which document the bedrock of the northwestern portion of the compliance boundary as intermediate meta-volcanic rock of the Charlotte Terrane and the bedrock of the remainder of the site as felsic meta-volcanics or meta-argillites of the Carolina Terrane.

Based on previous activities at the site, subsurface lithology beneath the Plant area is comprised of tan, brown to orange sandy silt and fine to coarse sands grading into partially weathered rock and then competent bedrock. The first occurrence of groundwater tends to be within the partially weathered rock or competent bedrock at depths ranging from nine to 20 feet below land surface (bls) along the downgradient compliance boundary and greater than 30 feet bls upgradient of the ash basin.

3.3 Hydrogeologic Information for Flow Direction Determination Shallow groundwater generally flows from local recharge zones in topographically high areas, such as ridges, toward groundwater discharge zones, such as stream valleys. Ridge and topographic high areas may serve as groundwater recharge zones. Groundwater flow patterns in recharge areas tend to develop a somewhat radial pattern from the center of the recharge area outward toward the discharge areas and are expected to mimic surface topography. The closest surface water discharge for the plant is to the north-northeast at Crutchfield Branch and, for the eastern portions of the property, to the east and Mayo Lake. The predominant flow direction across the property is from the topographically higher southwestern portion of the property towards the northeast.

3.4 Groundwater Flow Direction Determination Results Routine water level measurements and corresponding elevations from the compliance groundwater monitoring well network indicate that groundwater flows from upland areas (southwestern portion of the property) towards the northeast and Crutchfield Branch. Therefore, the area between southwestern portion of the site and the intersection with the 0.5 mile boundary to the northeast is considered the potential area of interest with respect to drinking water wells. The potential area of interest is shown on Figure 3.

Page 4 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 8: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

4.0 DRINKING WATER WELL SURVEY ACTIVITIES AND FINDINGS

4.1 State Records Review SynTerra reviewed the NCDENR Department of Environmental Health (DEH) Public Water Supply Section’s (PWSS) Public Water Supply Water Sources Geographic Information System (GIS) point data set (pwsws.shp) and the Water Distribution Map Service (WDMS) data set obtained from the NC OneMap GeoSpatial Portal (http://data.nconemap.com/geoportal/catalog/main/home.page) to identify public water supply sources and water supply lines within a 0.5 mile radius of the Mayo Plant compliance boundary.

According to the NC OneMap website, the Public Water Supply Water Sources point data was current through November 18, 2009, and that it is the most current GIS data set of public water supply locations available from North Carolina state agencies. The GIS point data for the public water supply wells includes, but is not limited to information such as public water supply (PWS) system identification numbers, ownership information, PWS source type, well depth, and well yield. The WDMS data set contains information on municipal water lines and other appurtenances.

On June 24, 2014, SynTerra reviewed the NCDENR Division of Water Resources (DWR) Source Water Assessment Program (SWAP) online database for public water supply sources to identify wells located within a 0.5 mile radius of the compliance boundary; to confirm the location of wells included in the Public Water Supply Water Sources GIS point data set, and to identify any wellhead protection areas located within a 0.5 mile radius of the compliance boundary. The NCDENR SWAP database provides detailed assessments of all public drinking water intakes and wellhead protection areas in North Carolina. The website address is: (http://swap.ncwater.org/website/swap/viewer.htm).

Virginia’s (VA) Department of Environmental Quality (DEQ) maintains a GIS database called "VEGIS" (http://www.deq.virginia.gov/ConnectWithDEQ/VEGIS/VEGISDatasets.aspx) which includes many types of geo-spatial information. The VEGIS database was reviewed, and it appears that it does not contain a database of water wells in the state. Virginia DEQ personnel were contacted to verify that the state does not currently maintain a publicly available searchable database of wells. 4.2 Federal/Other Records Review SynTerra reviewed the United States Geological Survey (USGS) National Hydrography Dataset (NHD) obtained from the USGS National Map Viewer

Page 5 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 9: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

(http://viewer.nationalmap.gov/viewer/) to identify surface waters within a 0.5 mile radius of the compliance boundary. Hydrography data obtained from the USGS NHD is included on Figure 3.

A review of public database water well information provided by Environmental Data Resources, Inc. (EDR) was also conducted. The public water well information reported for the surrounding area (North Carolina and Virginia) has been incorporated in the summary table (Table 1) and on Figure 3. A copy of the EDR report is included as Appendix A.

4.3 County and Utility Department Records Review The location of a City of Roxboro water line and a fire hydrant, just south of the plant’s entrance road is based upon Person County on-line GIS information. These locations are shown on Figure 3. The Halifax County, Virginia GIS information does not indicate the presence of public water utilities in this part of the county.

4.4 Field Survey During March, 2014, SynTerra personnel conducted a vehicular survey along public roads located within 0.5 mile radius of the compliance boundary in North Carolina and Virginia. Observations on property use, apparent proximity to available municipal water lines and structures that may represent potential water supply wells were noted. No wells were noted downgradient of the ash basin compliance boundary.

A written survey questionnaire is being mailed to the owners of properties within the survey area (Table 2). The questionnaire requests information regarding potential well location, well use, well depth and construction, date of completion, etc. Information reported from the questionnaire responses will be compiled and provided as an addendum to the survey on or before November 7, 2014. An example of the survey questionnaire is attached in Appendix B.

Page 6 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 10: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

5.0 SUMMARY OF FINDINGS

No public or private drinking water wells or wellhead protection areas are located within the potential area of interest (Figure 3). This finding is supported by field observations and the results of the records review as described in Section 4.0 above. Shallow groundwater flow across the Mayo Plant facility is from the west/southwest towards the northeast and Crutchfield Branch (Figure 3). Based on this observation, none of the wells identified in the water well survey are located downgradient of the ash basin.

Water wells located upgradient of the facility and within 0.5 miles of the compliance boundary are noted on Figure 3 in accordance with the NORR. Parcel information for these upgradient water well locations is provided in Table 1. A questionnaire is being sent to all the owners of property within the survey area as directed by DWR. These property owners are summarized on Table 2. An addendum letter and updated Figure 3 summarizing the questionnaire findings will be submitted to the DWR no later than November 7, 2014.

Page 7 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 11: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Drinking Water Well Survey and Receptor Survey September 2014 Mayo Steam Electric Plant, Roxboro, NC SynTerra

6.0 REFERENCES

Brown, P.M., and Parker, J.M., III, compilers, 1985, Geologic map of North Carolina: North Carolina Department of Natural Resources and Community Development, Division of Land Resources, scale 1:500,000, 1 sheet.

Dicken, Connie L., Suzanne W. Nicholson, John D. Horton, Michael P. Foose, and Julia A.L. Mueller, December 2007, Preliminary integrated geologic map databases for the United States – Alabama, Florida, Georgia, Mississippi, North Carolina, and South Carolina, Version 1.1: United States Geological Survey, USGS Open File Report 2005-1323, < http://pubs.usgs.gov/of/2005/1323>.

Hibbard, James P., Edward F. Stoddard, Donald T. Secor, and Allen J. Dennis, 2002, The Carolina Zone: overview of Neoproterozoic to Early Paleozoic peri-Gondwanan terranes along the eastern Flank of the southern Appalachians: Earth Science Reviews, v. 57.

Page 8 P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well

Survey\Mayo\Mayo Drinking Well Receptor Survey.docx

Page 12: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

FIGURES

Page 13: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

PROJECT MANAGER:LAYOUT:

DRAWN BY:KATHY WEBB

DATE:S. ARLEDGE

FIG 1 (USGS SITE LOCATION)

2014-09-30

FIGURE 1SITE LOCATION MAP

MAYO STEAM ELECTRIC PLANT10600 BOSTON RD

ROXBORO, NORTH CAROLINACLUSTER SPRINGS, VA QUADRANGLE

2000GRAPHIC SCALE

1000

IN FEET

10000CONTOUR INTERVAL:MAP DATE:

10ft1987

148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA

PHONE 864-421-9999www.synterracorp.com

SOURCE:USGS TOPOGRAPHIC MAP OBTAINED FROM THE NRCS GEOSPATIAL DATAGATEWAY AT http://datagateway.nrcs.usda.gov/

MAYO LAKE POWER PLANTPERSON COUNTY

RALEIGH

WILMINGTON

GREENVILLE

GREENSBORO

CHARLOTTEFAYETTEVILLE

PROPERTY BOUNDARY

500' COMPLIANCEBOUNDARY

WASTEBOUNDARY

Page 14: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

600 0 600 1200GRAPHIC SCALE

IN FEET

FIG 2 (SITE LAYOUT)

2014-09-30J. WYLIES. ARLEDGE

PROJECT MANAGER:LAYOUT NAME:

DRAWN BY:CHECKED BY:

K. WEBB

DATE:DATE:

FIGURE 2SITE LAYOUT

www.synterracorp.com

148 River Street, Suite 220Greenville, South Carolina 29601

864-421-9999

LEGEND

2014-09-30

500 ft COMPLIANCE BOUNDARY

DUKE ENERGY PROGRESS MAYO PLANT

WASTE BOUNDARY

MAYO STEAM ELECTRIC PLANT10600 BOSTON RDROXBORO, NORTH CAROLINA

BACKGROUND MONITORING WELL (SURVEYED)

COMPLIANCE MONITORING WELL (SURVEYED)CW-1

BG-1

SOURCES:

1. 2010 AERIAL PHOTOGRAPH OF PERSON COUNTY, NORTHCAROLINA OBTAINED FROM THE NRCS GEOSPATIALDATA GATEWAY AT http://datagateway.nrcs.usda.gov /

2. 2012 AERIAL PHOTOGRAPH OF HALIFAX COUNTY, VIRGINIAWAS OBTAINED FROM NRCS GEOSPATIAL DATA GATEWAY AThttp://datagateway.nrcs.usda.gov/

3. 2014 AERIAL PHOTOGRAPH WAS OBTAINED FROM WSPFLOWN ON APRIL 17, 2014.

4. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTHCAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200(NAD 83).

NORTH CAROLINA-VIRGINIA STATE LINE (APPROXIMATE)

BOST

ON R

D(U

S HW

Y 50

1)

MAYO LAKE RD

MAYO LAKE RD

OLD

US

501

MULLINS LN

LOUISIANA PACIFICCORPORATION

10475 BOSTON RD(TIED INTO THE CITY OFROXBORO WATER LINE)

RT HESTER RD

RAILROAD

RAILROAD

RAILROAD

RAILROAD

HUEL

L M

ATTH

EWS

HWY

(US

HWY

501)

PERSON COUNTY

HALIFAX COUNTY

1981

LANDFIL

L

PERM

IT NO.

73-

B

POWERPLANT

BOST

ON R

D (U

S HW

Y 50

1)RAILROAD

WOODY LOOP

CRUTCHFIELDBRANCH

MAYO CREEK

MAYO RESERVOIR

MAYOCREEK

CRUTCHFIELDBRANCH

EDR 1

FORMER US HW

Y 501

RAW WATERINTAKESTRUCTURE

BG-1

BG-2

CW-1

CW-1D

CW-2

CW-6

CW-2D

CW-3

CW-4

CW-5

ACTIVE ASH BASIN

Page 15: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

W

W

W

W

480

600 0 600 1200GRAPHIC SCALE

IN FEET

FIG 3 (DRINKING WATER MAP)(11X17)

2014-09-30J. WYLIES. ARLEDGE

PROJECT MANAGER:LAYOUT NAME:

DRAWN BY:CHECKED BY:

K. WEBB

DATE:DATE:

FIGURE 3DRINKING WATER SUPPLY

WELL SURVEY MAP

www.synterracorp.com

148 River Street, Suite 220Greenville, South Carolina 29601

864-421-9999

LEGENDBACKGROUND MONITORING WELL (SURVEYED)

COMPLIANCE MONITORING WELL (SURVEYED)

2014-09-30

500 ft COMPLIANCE BOUNDARY

DUKE ENERGY PROGRESS MAYO PLANT

WASTE BOUNDARY

HALF MILE SURVEY BOUNDARY

POTENTIAL AREA OF INTEREST(APPROXIMATE)

CW-1

GENERALIZED GROUNDWATER FLOWDIRECTION• SUPPORTED BY GROUNDWATER ELEVATION DATA

OR TOPOGRAPHIC DATA

PRW-1

DW-1

POSSIBLE WATER SUPPLY WELL

OBSERVED WATER SUPPLY WELL

EDR 1 EDR REPORTED SUPPLY WELL (APPROXIMATE)

PARCEL LINE (PERSON CO GIS)

FLOW DIRECTION

BG-1

NORTH CAROLINA-VIRGINIA STATE LINE(APPROXIMATE)

BOST

ON

RD

(US

HW

Y 50

1)

MAYO LAKE RD

MAYO LAKE RD

OLD

US

501

MULLINS LN

RT HESTER RD

RAILROAD

RAILROAD

RAILROAD

RAILROAD

RAILROAD

HU

ELL

MAT

THEW

SH

WY

(US

HW

Y 50

1)

PERSON COUNTY

HALIFAX COUNTY

1981

LANDFI

LL

PERMIT

NO. 7

3-B

ACTIVE ASH BASIN

POWERPLANT

BOST

ON

RD

(US

HW

Y 50

1)RAILROAD

WO

ODY LO

OP

CRUTCHFIELDBRANCH

MAYO CREEK

MAYO RESERVOIR

MAYO CREEK

CRUTCHFIELDBRANCH

EDR 1

DEP 1

DEP 3DEP 2

FOR

MER

US H

WY 501

RAW WATERINTAKESTRUCTURE

PERSON COUNTY WATERLINE (APPROXIMATE)W

FIRE HYDRANT LOCATION (APPROXIMATE)FH

DUKE ENERGY PROGRESS PRODUCTIONWELL - NOT IN SERVICE (APPROXIMATE)

DEP 1

BG-1

BG-2

CW-1

CW-1D

CW-2

CW-6

CW-2D

CW-3

CW-4

CW-5

MAYO STEAM ELECRTIC PLANT10600 BOSTON RDROXBORO, NORTH CAROLINA

2007 LiDAR CONTOUR MAJOR ANDVIRGINIA USGS CONTOUR MAJOR

420

SOURCES:

1. 2010 AERIAL PHOTOGRAPH OF PERSON COUNTY,NORTH CAROLINA OBTAINED FROM THE NRCSGEOSPATIAL DATA GATEWAY AThttp://datagateway.nrcs.usda.gov/

2. 2012 AERIAL PHOTOGRAPH OF HALIFAX COUNTY,VIRGINIA WAS OBTAINED FROM NRCS GEOSPATIALDATA GATEWAY AT http://datagateway.nrcs.usda.gov/

3. 2014 AERIAL PHOTOGRAPH WAS OBTAINED FROM WSPFLOWN ON APRIL 17, 2014.

4. WELL SURVEY INFORMATION, PROPERTY LINE,LANDFILL LIMITS AND BOUNDARIES ARE FROM ARCGISFILES PROVIDED BY S&ME AND PROGRESS ENERGY.

5. PARCEL BOUNDARIES WERE OBTAINED FROM PERSONCOUNTY (NC) GIS DATA AT http://gis.personcounty.net

6. DRAWING HAS BEEN SET WITH A PROJECTION OFNORTH CAROLINA STATE PLANE COORDINATE SYSTEMFIPS 3200 (NAD 83).

7. 10ft CONTOUR INTERVALS FROM NCDOT LiDAR DATED2007https://connect.ncdot.gov/resources/gis/pages/cont-elev_v2.aspx

8. VIRGINIA 10ft CONTOUR INTERVALS FROM USGSTOPOGRAPHIC MAP OBTAINED FROM THE NRCSGEOSPATIAL DATA GATEWAY AThttp://datagateway.nrcs.usda.gov/

NOTE:

1. CONTOUR LINES ARE USED FOR REPRESENTATIVEPURPOSES ONLY AND ARE NOT TO BE USED FORDESIGN OR CONSTRUCTION PURPOSES.

PRW-5PRW-4

PRW-6

PRW-3

PRW-1

PRW-2

PRW-7

PRW-8

PRW-9

DW-1DW-2

DW-3

DW-5

DW-6

DW-7

DW-8

DW-9 DW-10

DW-11

DW-12

DW-4

LOUISIANA PACIFICCORPORATION

10475 BOSTON RD(TIED INTO THE CITY OFROXBORO WATER LINE)

FH

FH

CITY OF ROXBOROWATER LINE

INSTALLED IN 2006

WATER LINETERMINATES ATTHE FIRE HYDRANT

Page 16: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TABLES

Page 17: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TABLE 1

PUBLIC AND PRIVATE WATER SUPPLY WELLS

WITHIN 0.5 MILE RADIUS OF ASH BASIN COMPLIANCE BOUNDARY

MAYO STEAM ELECTRIC PLANT

DUKE ENERGY PROGRESS, INC., ROXBORO, NORTH CAROLINA

Map Well

ID #PARCEL ID NUMBER WELL OWNER/USER OWNER ADDRESS OWNER CITY

OWNER

STATE

OWNER

ZIP

PROPERTY ADDRESS

(WELL LOCATION)FIELD DESCRIPTION / NOTES

DEP-1 ___ CAROLINA POWER & LIGHT CO 550 SOUTH TRYON ST DEC 41B CHARLOTTE NC 28202 10660 BOSTON RD LOCATED ON SOUTH SIDE OF ENTRANCE ROAD.

DEP-2 ___ CAROLINA POWER & LIGHT CO 550 SOUTH TRYON ST DEC 41B CHARLOTTE NC 28202 10660 BOSTON RD LOCATED OFF NORTH SIDE OF ENTRANCE ROAD IN A WELL HOUSE.

DEP-3 ___ CAROLINA POWER & LIGHT CO 550 SOUTH TRYON ST DEC 41B CHARLOTTE NC 28202 10660 BOSTON RD LOCATED OFF NORTH SIDE OF ENTRANCE ROAD IN A WELL HOUSE.

PRW-9 0030-01-07-5825.000 SHEETS CHARLES DAVIS 369 MULLINS LN ROXBORO NC 27574 369 MULLINS LN OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

PRW-8 0020-00-97-8457.000 WOMACK MICHAEL DEAN 236 MULLINS LN ROXBORO NC 27573 236 MULLINS LN OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

DW-12 0020-00-97-3698.000 CLAYTON KEITH W 206 MULLINS LN ROXBORO NC 27574 206 MULLINS LN WELL STRUCTURE OBSERVED IN FRONT YARD; NO MUNICIPAL WATER LINES IN AREA

DW-11 0020-00-97-2996.000 LESTER SHARRIS D 40 MARIETTA ST ATLANTA GA 30303 209 MULLINS LN WELL STRUCTURE OBSERVED IN FRONT YARD; NO MUNICIPAL WATER LINES IN AREA

DW-10 0020-00-97-1921.000 SERRANT WALTER G 153 MULLINS LN ROXBORO NC 27574 153 MULLINS LN WELL STRUCTURE OBSERVED IN FRONT YARD; NO MUNICIPAL WATER LINES IN AREA

DW-7 0020-00-88-8319.000 FLORES LENOR & ALFREDO ANAYA 682 OLD US 501 ROXBORO NC 27574 682 OLD US 501 HWY WELL STRUCTURE OBSERVED IN FRONT YARD; NO MUNICIPAL WATER LINES IN AREA

DW-9 0020-00-87-7738.000 JONES MICHAEL D 77 MULLINS LN ROXBORO NC 27574 77 MULLINS LN WELL STRUCTURE OBSERVED IN FRONT YARD; NO MUNICIPAL WATER LINES IN AREA

DW-8 0020-00-88-5002.000 FLORES FELIPE & MARTHA 582 OLD US 501 ROXBORO NC 27574 582 OLD US 501 HWY WELL STRUCTURE OBSERVED BEHIND HOUSE; NO MUNICIPAL WATER LINES IN AREA

DW-6 0020-00-78-6143.000 EASTWOOD HOWARD L & DONNA W 309 EASTWOOD LONG DR ROXBORO NC 27574 10524 BOSTON RDWELL STRUCTURE OBSERVED IN FRONT YARD; CITY OF ROXBORO WATER LINE PRESENT ALONG BOSTON

ROAD; NO METER OBSERVED

PRW-7 0020-00-77-6895.000 EASTWOOD HOWARD L & DONNA W 309 EASTWOOD LONG LN ROXBORO NC 27574 10522 BOSTON RDOCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; CITY OF ROXBORO WATER LINE PRESENT

ALONG BOSTON ROAD; NO METER OBSERVED

DW-5 0021-00-85-3594.000 M & M DEVELOPMENT LLC 66 LILY MCCOY LN PITTSBORO NC 27312 11939 BOSTON RD WELL STRUCTURE OBSERVED BEHIND BUILDING; NO MUNICIPAL WATER LINES IN AREA

DW-4 0021-00-85-3594.000 M & M DEVELOPMENT LLC 66 LILY MCCOY LN PITTSBORO NC 27312 11939 BOSTON RD WELL STRUCTURE OBSERVED IN YARD OF RESIDENCE; NO MUNICIPAL WATER LINES IN AREA

DW-3 0021-00-85-5992.000 EASTWOOD HOWARD L & DONNA W 309 EASTWOOD LONG LN ROXBORO NC 27574 12015 BOSTON RD WELL STRUCTURE OBSERVED BEHIND HOUSE; NO MUNICIPAL WATER LINES IN AREA

PRW-6 24410 TINGEN, KEVIN MORTON 12090 HUELL MATTHEWS HWY ALTON VA 24520 12090 HUELL MATTHEWS HWY OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

PRW-4 27009 REAVES, LAURIE S P O BOX 997 ROXBORO NC 27573 12089 HUELL MATTHEWS HWY OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

PRW-5 22883 SLAUGHTER, LAURIE A P O BOX 997 ROXBORO NC 27573 PT. TR. B ROXBORO ROAD OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

DW-2 7855 JOHNSON, ADDISON JR. & DIANNE G. P O BOX 3463 ROXBORO NC 27573-3463 1044 WOODY LOOP WELL STRUCTURE OBSERVED IN YARD; NO MUNICIPAL WATER LINES IN AREA

PRW-3 7855 JOHNSON, ADDISON JR. & DIANNE G. P O BOX 3463 ROXBORO NC 27573-3463 1044 WOODY LOOP UNOCCUPIED (?) RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

DW-1 27032 WOODY, MARY B 1025 WOODY LOOP ALTON VA 24520 1025 WOODY LOOP WELL STRUCTURE OBSERVED BEHIND HOUSE; NO MUNICIPAL WATER LINES IN AREA

PRW-2 26196 WILBORN, WILLIAM J. SR. 11243 HUELL MATTHEWS HWY ALTON VA 24520 11243 HUELL MATTHEWS HWY OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

PRW-1 26301 WILKINS, CHARLES P & NELLIE W 1022 WOODY LOOP ALTON VA 24520 1022 WOODY LOOP OCCUPIED RESIDENCE; NO WELL STRUCTURE OBSERVED; NO MUNICIPAL WATER LINES OBSERVED

Notes: Prepared By: RBI Checked By: JAW

The Field Description/Notes column is a brief summary of SynTerra field observations or other relevant information.

- Possible water well. Water line not available. No well observed.

- Observed water well.

Well ID refers to location of possible well shown on the survey map. Water supply well list organized by location from southeast to northwest.

Parcel ID, owner and address information were obtained from the Person County, North Carolina website (http://www.personcounty.net/index.aspx?page=138) and Halifax County Virginia website (http://arcgis.webgis.net/va/Halifax/).

P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well Survey\Mayo\Tables\Table 1 Public Private Water Supply Wells Mayo.xlsx Page 1 of 1

Page 18: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TABLE 2

PARCEL OWNERSHIP INFORMATION WITHIN SURVEY RADIUS

MAYO STEAM ELECTRIC PLANT

DUKE ENERGY PROGRESS, INC., ROXBORO, NORTH CAROLINA

PARCEL ID NUMBER PROPERTY OWNER PROPERTY ADDRESS OWNER ADDRESS

0021-00-85-3594.000 M & M DEVELOPMENT LLC BOSTON RD 11939 66 LILY MCCOY LN, PITTSBORO NC 27312

0021-00-85-3985.000 EASTWOOD HOWARD L & DONNA W BOSTON RD 309 EASTWOOD LONG LN, ROXBORO NC 27574

0031-00-55-5705.000 MERRITT JOHN H III MAYO LAKE RD 3967 9TH LN, VERO BEACH FL 32960

0020-00-88-6091.000 FLORES FELIPE & MARTHA OLD US 501 HWY 582 OLD US 501, ROXBORO NC 27574

0031-00-25-6615.000 PEED DOYLE & PEED DURWOOD MAYO LAKE RD 428 BETHEL HILL SCHOOL RD, ROXBORO NC 27574

0021-00-86-5056.000 EASTWOOD HOWARD L & DONNA W BOSTON RD 309 EASTWOOD LONG LN, ROXBORO NC 27574

0021-00-86-5198.000 EASTWOOD HOWARD L & DONNA W BOSTON RD 309 EASTWOOD LONG LN, ROXBORO NC 27574

0021-00-85-5992.000 EASTWOOD HOWARD L & DONNA W BOSTON RD 12015 309 EASTWOOD LONG LN, ROXBORO NC 27574

0020-00-68-6834.000 LOUISIANA PACIFIC CORPORATION BOSTON RD 10475 414 UNION ST STE 2000, NASHVILLE TN 37219

0030-01-07-5825.000 SHEETS CHARLES DAVIS MULLINS LN 369 369 MULLINS LN, ROXBORO NC 27574

0020-00-88-8319.000 FLORES LENOR & ALFREDO ANAYA OLD US 501 HWY 682 682 OLD US 501, ROXBORO NC 27574

0020-00-88-5002.000 FLORES FELIPE & MARTHA OLD US 501 HWY 582 582 OLD US 501, ROXBORO NC 27574

0020-00-87-9909.000 FLORES FELIPE & MARTHA OLD US 501 HWY 582 OLD US 501, ROXBORO NC 27574

0020-00-97-3698.000 CLAYTON KEITH W MULLINS LN 206 206 MULLINS LN, ROXBORO NC 27574

0020-00-97-8457.000 WOMACK MICHAEL DEAN MULLINS LN 236 236 MULLINS LN, ROXBORO NC 27573

0030-01-07-1445.000 SEYMOUR MARY LINK MULLINS LN 230 LESTERS WAY, MONCURE NC 27559

0030-01-07-4217.000 SHEETS CHARLES DAVIS MULLINS LN 369 MULLINS LN, ROXBORO NC 27574

0030-01-07-5465.000 MAILLET JOSEPH & JEAN MULLINS LN 841 PAMELA DR, PUNTA GORDA FL 33950

0030-01-08-2296.000 KEE GWENDOLYN M MULLINS LN 4133 NE W 67TH TER, CORAL SPRINGS, FL 33067

0020-00-98-4298.000 JONES BONNIE L & LARRY V MULLINS LN 4 PAGE MORE CT, DURHAM NC 27703

0020-00-97-2996.000 LESTER SHARRIS D MULLINS LN 209 40 MARIETTA ST, ATLANTA GA 30303

0020-00-97-1921.000 SERRANT WALTER G MULLINS LN 153 153 MULLINS LN, ROXBORO NC 27574

0020-00-87-9862.000 POOLE EARL D EST MULLINS LN 630 PROVIDENCE RD, ROXBORO NC 27573

0020-00-87-7738.000 JONES MICHAEL D MULLINS LN 77 77 MULLINS LN, ROXBORO NC 27574

0020-00-88-7240.000 THOMAS EUNICE & CARLTON THOMAS OLD US 501 HWY PO BOX 3121, ROXBORO NC 27573

P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well Survey\Mayo\Tables\Table 2 Parcel Ownership Information Mayo.xlsx Page 1 of 2

Page 19: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TABLE 2

PARCEL OWNERSHIP INFORMATION WITHIN SURVEY RADIUS

MAYO STEAM ELECTRIC PLANT

DUKE ENERGY PROGRESS, INC., ROXBORO, NORTH CAROLINA

PARCEL ID NUMBER PROPERTY OWNER PROPERTY ADDRESS OWNER ADDRESS

0020-00-78-6143.000 EASTWOOD HOWARD L & DONNA W 10524 BOSTON RD (NC) 309 EASTWOOD LONG DR, ROXBORO NC, 27574

0020-00-77-6895.000 EASTWOOD HOWARD L & DONNA W 10522 BOSTON RD (NC) 309 EASTWOOD LONG LN, ROXBORO NC 27574

24410  TINGEN, KEVIN MORTON ROXBORO RD DB446/309 12090 HUELL MATTHEWS HWY, ALTON, VA 24520

27009  REAVES, LAURIE S 12089 HUELL MATTHEWS HWY P O BOX 997, ROXBORO, NC 27573

22883  SLAUGHTER, LAURIE A PT. TR. B ROXBORO ROAD P O BOX 997, ROXBORO, NC 27573

7855  JOHNSON, ADDISON JR. & DIANNE G. 1044 WOODY LOOP P O BOX 3463, ROXBORO, NC 27573-3463

27032 WOODY, MARY B TRACT A ROXBORO ROAD 1025 WOODY LOOP, ALTON, VA 24520

7856 WILBORN, WILLIAM J SR & BRENDA L 11243 HUELL MATTHEWS HWY   11243 HUELL MATTHEWS HWY, ALTON, VA 24520

26194 WILBORN, WILLIAM J SR & BRENDA L 11243 HUELL MATTHEWS HWY  11243 HUELL MATTHEWS HWY, ALTON, VA 24520

26196  WILBORN, WILLIAM J. SR. 11243 HUELL MATTHEWS HWY 11243 HUELL MATTHEWS HWY, ALTON, VA 24520

26301  WILKINS, CHARLES P & NELLIE W NEAR BETHEL HILL PB14/45 1022 WOODY LOOP, ALTON, VA 24520

Prepared By: RBI  Checked By:  JW

P:\Duke Energy Progress.1026\ALL NC SITES\DENR Letter Deliverables\Drinking Water Well Survey\Mayo\Tables\Table 2 Parcel Ownership Information Mayo.xlsx Page 2 of 2

Page 20: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

APPENDIX A

EDR REPORT

Page 21: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

FORM-NULL-CCA

tropeR ®kcehCoeG RDE ehT

6 Armstrong Road, 4th floorShelton, CT 06484Toll Free: 800.352.0050www.edrnet.com

Duke Energy - Mayo10600 Boston Rd.Roxboro, NC 27574

Inquiry Number: 3887559.1sMarch 21, 2014

Page 22: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

SECTION PAGE

GEOCHECK ADDENDUM

Physical Setting Source Addendum A-1

Physical Setting Source Summary A-2

Physical Setting Source Map A-7

Physical Setting Source Map Findings A-8

Physical Setting Source Records Searched A-17

TC3887559.1s Page 1

Thank you for your business.Please contact EDR at 1-800-352-0050

with any questions or comments.

Disclaimer - Copyright and Trademark Notice

This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental DataResources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist fromother sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTALDATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION,MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALLENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE,ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL,CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLYLIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings,environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, norshould they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase IEnvironmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for anyproperty. Additionally, the information provided in this Report is not to be construed as legal advice.

Copyright 2014 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in wholeor in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.

EDR and its logos (including Sanborn and Sanborn Map) are trademarks of Environmental Data Resources, Inc. or its affiliates. All othertrademarks used herein are the property of their respective owners.

TABLE OF CONTENTS

Page 23: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 1

geologic strata.of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of theGroundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics

2. Groundwater flow velocity. 1. Groundwater flow direction, and

Assessment of the impact of contaminant migration generally has two principal investigative components:

forming an opinion about the impact of potential contaminant migration.EDR’s GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in

1987Most Recent Revision:36078-E8 CLUSTER SPRINGS, VA NCTarget Property Map:

USGS TOPOGRAPHIC MAP

478 ft. above sea levelElevation:4045181.8UTM Y (Meters): 688382.6UTM X (Meters): Zone 17Universal Tranverse Mercator: 78.8957 - 78˚ 53’ 44.52’’Longitude (West): 36.5353 - 36˚ 32’ 7.08’’Latitude (North):

TARGET PROPERTY COORDINATES

ROXBORO, NC 2757410600 BOSTON RD.DUKE ENERGY - MAYO

TARGET PROPERTY ADDRESS

®GEOCHECK - PHYSICAL SETTING SOURCE REPORT ®

Page 24: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 2

should be field verified.on a relative (not an absolute) basis. Relative elevation information between sites of close proximitySource: Topography has been determined from the USGS 7.5’ Digital Elevation Model and should be evaluated

SURROUNDING TOPOGRAPHY: ELEVATION PROFILES

Ele

vatio

n (f

t)E

leva

tion

(ft)

TP

TP0 1/2 1 Miles

✩Target Property Elevation: 478 ft.

North South

West East

573534

551536

533

527499478

478

478

478

478

492461

473

493

515497

495460

462

506

531

542

535 504 491 478

478

478

478

518 490

487

495

429

429

429

General SEGeneral Topographic Gradient:TARGET PROPERTY TOPOGRAPHY

should contamination exist on the target property, what downgradient sites might be impacted.assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or,Surface topography may be indicative of the direction of surficial groundwater flow. This information can be used toTOPOGRAPHIC INFORMATION

collected on nearby properties, and regional groundwater flow information (from deep aquifers).sources of information, such as surface topographic information, hydrologic information, hydrogeologic datausing site-specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on otherGroundwater flow direction for a particular site is best determined by a qualified environmental professionalGROUNDWATER FLOW DIRECTION INFORMATION

®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®

Page 25: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 3

Not Reported

GENERAL DIRECTIONLOCATIONGROUNDWATER FLOWFROM TPMAP ID

hydrogeologically, and the depth to water table.authorities at select sites and has extracted the date of the report, groundwater flow direction as determinedflow at specific points. EDR has reviewed reports submitted by environmental professionals to regulatoryEDR has developed the AQUIFLOW Information System to provide data on the general direction of groundwater

AQUIFLOW®

Search Radius: 1.000 Mile.

contamination exist on the target property, what downgradient sites might be impacted.environmental professional in forming an opinion about the impact of nearby contaminated properties or, shouldof groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist theHydrogeologic information obtained by installation of wells on a specific site can often be an indicatorHYDROGEOLOGIC INFORMATION

YES - refer to the Overview Map and Detail MapCLUSTER SPRINGS

NATIONAL WETLAND INVENTORYNWI ElectronicData CoverageNWI Quad at Target Property

51083C - FEMA DFIRM Flood dataAdditional Panels in search area:

37145C - FEMA DFIRM Flood dataFlood Plain Panel at Target Property:

YES - refer to the Overview Map and Detail MapPERSON, NC

FEMA FLOOD ZONEFEMA FloodElectronic DataTarget Property County

and bodies of water).Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways

contamination exist on the target property, what downgradient sites might be impacted.the environmental professional in forming an opinion about the impact of nearby contaminated properties or, shouldSurface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assistHYDROLOGIC INFORMATION

®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®

Page 26: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 4

> 60 inchesDepth to Bedrock Max:

> 60 inchesDepth to Bedrock Min:

HIGH Corrosion Potential - Uncoated Steel:

Hydric Status: Soil does not meet the requirements for a hydric soil.

Not reportedSoil Drainage Class:

drained and classified.Class C/D - Drained/undrained hydrology class of soils that can beHydrologic Group:

loamSoil Surface Texture:

IREDELL Soil Component Name:

The following information is based on Soil Conservation Service STATSGO data.in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps.for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patternsSurvey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey informationThe U.S. Department of Agriculture’s (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil

DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY

Map, USGS Digital Data Series DDS - 11 (1994).of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. BeikmanGeologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology

ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION

Volcanic RocksCategory:PaleozoicEra:CambrianSystem:Cambrian volcanic rocksSeries:CvCode: (decoded above as Era, System & Series)

at which contaminant migration may be occurring.Geologic information can be used by the environmental professional in forming an opinion about the relative speedGEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY

move more quickly through sandy-gravelly types of soils than silty-clayey types of soils.characteristics data collected on nearby properties and regional soil information. In general, contaminant plumesto rely on other sources of information, including geologic age identification, rock stratigraphic unit and soilusing site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessaryGroundwater flow velocity information for a particular site is best determined by a qualified environmental professionalGROUNDWATER FLOW VELOCITY INFORMATION

®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®

Page 27: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 5

unweathered bedrocksandy loamDeeper Soil Types:

very channery - silt loamsandy clay loamsilt loamsandy loamsandy clayclay loamShallow Soil Types:

channery - silt loamsilt loamfine sandy loamSurficial Soil Types:

channery - silt loamsilt loamfine sandy loamSoil Surface Textures:

appear within the general area of target property.Based on Soil Conservation Service STATSGO data, the following additional subordinant soil types may

OTHER SOIL TYPES IN AREA

Min: 0.00Max: 0.00

Min: 0.00Max: 0.00Not reportedNot reportedvariable62 inches27 inches 4

Min: 6.10Max: 7.80

Min: 0.06Max: 0.20

50%), Lean Claylimit less thanClays (liquidSOILS, Silts andFINE-GRAINED

Soils.200), Clayeypassing No.than 35 pct.Materials (moreSilt-Clayloam27 inches24 inches 3

Min: 5.60Max: 7.30

Min: 0.06Max: 0.20

more), Fat Clay.limit 50% orClays (liquidSOILS, Silts andFINE-GRAINED

Soils.200), Clayeypassing No.than 35 pct.Materials (moreSilt-Clayclay24 inches 7 inches 2

Min: 5.10Max: 7.30

Min: 0.60Max: 2.00

50%), silt.limit less thanClays (liquidSOILS, Silts andFINE-GRAINED

Soils.200), Siltypassing No.than 35 pct.Materials (moreSilt-Clayloam 7 inches 0 inches 1

Soil Layer Information

Boundary Classification

PermeabilityRate (in/hr)

Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Soil Reaction(pH)

®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®

Page 28: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 6

NC30000013 NC30000009 NC30000008 NC30000006 _________ Site Name

NORTH CAROLINA WILDLIFE RESOURCES COMMISSION GAME LANDS DATABASE

OTHER STATE DATABASE INFORMATION

No Wells Found

STATE DATABASE WELL INFORMATION

LOCATIONFROM TPWELL IDMAP ID

Note: PWS System location is not always the same as well location.

1/2 - 1 Mile ESENC0273427 2

FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION

LOCATIONFROM TPWELL IDMAP ID

1/4 - 1/2 Mile NWUSGS40000897734 1

FEDERAL USGS WELL INFORMATION

LOCATIONFROM TPWELL IDMAP ID

1.000State Database1.000Federal FRDS PWS1.000Federal USGS

WELL SEARCH DISTANCE INFORMATION

SEARCH DISTANCE (miles)DATABASE

opinion about the impact of contaminant migration on nearby drinking water wells.professional in assessing sources that may impact ground water flow direction, and in forming anEDR Local/Regional Water Agency records provide water well information to assist the environmental

LOCAL / REGIONAL WATER AGENCY RECORDS

®GEOCHECK - PHYSICAL SETTING SOURCE SUMMARY®

Page 29: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.EDR Inc.

440

0

44

0 4 40

5 2 0

40

0

440

4 00

440

48

0

4 4 0

4 4 0440

56

0

40

0

4 0 0

400 5

6 05 6 0

36

0

0

36

0

48

0

480

4 4 0

4004 80

36

0

40

0

4 80

4 4 0

480

5 2 05 6 0

40

0

520

5 2 0

4 8 0

56

0

5 2 0

5 20

520

5 2 0

5

6 0

48

0

4 40520

480

4 80

560

640

44

0

64

0

6 4 0

40

0

4 0 0

40

0

4

0 0

4 00

0

4 4 04 4 0

4

4 0

4 4 0

4 4 0

44

0

4 4 0

4 4 0

44

0

4 4 04 4 0

4

4 0

4 4 0

4 4 0

4 4 0

4 4 0440

4

4 0

6 0 0

6 0 0

56

0

5 6 0

5 6 0

5 6 0

52 0

52

0

5 2 0

52

0

5 2 0

52

0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

5 2 0

48

0

4 8 0

4 8 0

4 8 04 8 0

4 8 0

48 0

4 8 048

04 8 0

4 8 0

4 8 0

4 80

4 8 0

4 8 0

4 8 0

4 8 0

48

0

4 8 0

4

4 0

4

0 0

4

4 0

3 6 0

4 0 0

4

0 0

440

44

0

44

0

4 8

0

0 0

0 0

0

11111

22222

0 1/4 1/2 1 Miles

NC

Page 30: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 8

27573Contact zip:ROXBOROContact city:Not ReportedContact address2:

10660 BOSTON ROADContact address1:336-599-0218Contact phone:BEASLEY, ROBERT EOriginal name:BEASLEY, ROBERT EContact name:disinfection by-products controlTreatment objective:

sedimentationTreatment process:Distribution_system_zoneFacility type:DISTRIBUTION SYSTEMFacility name:50740Facility id:

PrivateOwner type:ActiveStatus:NTNCWSPws type:Surface_waterPWS Source:

6Pwssvcconn:70Population Served:CP&L-MAYO ELEC GEN PLANTPws name:

PersonCounty:NCState:04Epa region:NC0273427Pwsid:

2ESE1/2 - 1 MileLower

NC0273427FRDS PWS

Ground-water levels, Number of Measurements: 0

Not ReportedWellholedepth units:Not ReportedWellholedepth:ftWelldepth units:87Welldepth:Not ReportedConstruction date:

Not ReportedAquifer type:Felsic GneissFormation type:Piedmont and Blue Ridge crystalline-rock aquifersAquifername:

USCountrycode:Not ReportedVert coord refsys:Not ReportedVertcollection method:Not ReportedVert accmeasure units:

Not ReportedVertacc measure val:Not ReportedVert measure units:Not ReportedVert measure val:NAD83Horiz coord refsys:

Interpolated from mapHoriz Collection method:secondsHoriz Acc measure units:1Horiz Acc measure:Not ReportedSourcemap scale:-78.9011203Longitude:36.5390292Latitude:Not ReportedContrib drainagearea units:Not ReportedContrib drainagearea:Not ReportedDrainagearea Units:Not ReportedDrainagearea value:Not ReportedHuc code:

Not ReportedMonloc desc:WellMonloc type:PS-004Monloc name:USGS-363220078540501Monloc Identifier:USGS North Carolina Water Science CenterFormal name:USGS-NCOrg. Identifier:

1NW1/4 - 1/2 MileHigher

USGS40000897734FED USGS

Map IDDirectionDistanceElevation EDR ID NumberDatabase

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 31: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 9

disinfection by-products controlTreatment objective:filtration, pressure sandTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

disinfection by-products controlTreatment objective:filtration, pressure sandTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

disinfection by-products controlTreatment objective:filtration, pressure sandTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:coagulationTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

disinfection by-products controlTreatment objective:coagulationTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

disinfection by-products controlTreatment objective:coagulationTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

disinfection by-products controlTreatment objective:coagulationTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

disinfection by-products controlTreatment objective:coagulationTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:activated carbon, granularTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

disinfection by-products controlTreatment objective:activated carbon, granularTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

disinfection by-products controlTreatment objective:activated carbon, granularTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 32: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 10

disinfection by-products controlTreatment objective:ph adjustment, postTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

disinfection by-products controlTreatment objective:ph adjustment, postTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

disinfection by-products controlTreatment objective:ph adjustment, postTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

disinfection by-products controlTreatment objective:ph adjustment, postTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

disinfection by-products controlTreatment objective:ph adjustment, postTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:sedimentationTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

disinfection by-products controlTreatment objective:sedimentationTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

disinfection by-products controlTreatment objective:sedimentationTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

disinfection by-products controlTreatment objective:sedimentationTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:filtration, pressure sandTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

disinfection by-products controlTreatment objective:filtration, pressure sandTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 33: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 11

corrosion controlTreatment objective:inhibitor, polyphosphateTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

corrosion controlTreatment objective:inhibitor, polyphosphateTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

corrosion controlTreatment objective:inhibitor, polyphosphateTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

corrosion controlTreatment objective:inhibitor, polyphosphateTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:ph adjustment, preTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

organics removalTreatment objective:flocculationTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

organics removalTreatment objective:flocculationTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

disinfection by-products controlTreatment objective:ph adjustment, preTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

disinfection by-products controlTreatment objective:ph adjustment, preTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

disinfection by-products controlTreatment objective:ph adjustment, preTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

disinfection by-products controlTreatment objective:ph adjustment, preTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 34: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 12

corrosion controlTreatment objective:ph adjustment, postTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

corrosion controlTreatment objective:ph adjustment, postTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

corrosion controlTreatment objective:ph adjustment, postTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

corrosion controlTreatment objective:ph adjustment, postTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

corrosion controlTreatment objective:ph adjustment, postTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

corrosion controlTreatment objective:ph adjustmentTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

corrosion controlTreatment objective:ph adjustmentTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

corrosion controlTreatment objective:ph adjustmentTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

corrosion controlTreatment objective:ph adjustmentTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

corrosion controlTreatment objective:ph adjustmentTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

corrosion controlTreatment objective:inhibitor, polyphosphateTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 35: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 13

Not ReportedVio. Awareness Date:Not ReportedContaminant:Monitoring, Routine/Repeat (SWTR-Filter)Violation Type:Not ReportedAnalysis Method:

Not ReportedMaximum Contaminant Level:Not ReportedAnalysis Result:Not ReportedNumber of Samples Taken:Not ReportedNum required Samples:

001 MonthsVio. Period:11/30/93Vio. end Date:11/01/93Vio. beginning Date:Not ReportedPWS Phone:Not ReportedSource ID:9403206Violation ID:

VIOLATIONS INFORMATION:

YESPWS currently has or had major violation(s) or enforcement:

00000067Population:TreatedTreatment Class:ROXBOROCity Served:

078 58 59Facility Longitude:36 23 36Facility Latitude:078 52 50Facility Longitude:36 31 40Facility Latitude:

RALEIGH, NC 27602PO BOX 1551CAROLINA POWER & LIGHT COSystem Owner/Responsible PartyAddressee / Facility:

NEW HILL, NC 27562RT 1 BOX 327MARSHALL LUNDSFORD OR MANAGERSystem Owner/Responsible PartyAddressee / Facility:

ROXBORO, NC 27562MAYO STEAM PLANTPWS Name:

Not ReportedDate Deactivated:8001Date Initiated:NC0273427PWS ID:

manganese removalTreatment objective:sludge treatmentTreatment process:StorageFacility type:

STORAGE_GROUND_1Facility name:1184Facility id:

manganese removalTreatment objective:sedimentationTreatment process:Treatment_plantFacility type:

TREATMENT_PLT_MAYO STEAM PLTFacility name:5655Facility id:

manganese removalTreatment objective:sedimentationTreatment process:Distribution_system_zoneFacility type:

DISTRIBUTION SYSTEMFacility name:50740Facility id:

manganese removalTreatment objective:sedimentationTreatment process:IntakeFacility type:

MAYO LAKEFacility name:39229Facility id:

manganese removalTreatment objective:sedimentationTreatment process:StorageFacility type:

STORAGE_HYDRO_1Facility name:3150Facility id:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 36: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 14

State Compliance AchievedEnf. Action:3/16/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

State Public Notif RequestedEnf. Action:3/10/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

State Formal NOV IssuedEnf. Action:3/10/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

State Compliance AchievedEnf. Action:3/16/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

State Public Notif RequestedEnf. Action:3/10/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

State Formal NOV IssuedEnf. Action:3/10/2004 0:00:00Enforcement Date:304Violation ID:1/1/2004 0:00:00 - 1/31/2004 0:00:00Compliance Period:COLIFORM (TCR)Contaminant:Monitoring, Routine Major (TCR)Violation Type:CP&L-MAYO ELEC GEN PLANTSystem Name:

ENFORCEMENT INFORMATION:

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 37: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 15

PERSONCounty:PRVStatus:29.5865421295166Acres:Game LandSite Type:

Carolina Power & LightOwner:MayoSite Name:

NC30000013NC_WILD

PERSONCounty:PRVStatus:1029.91821289063Acres:Safety ZoneSite Type:

Carolina Power & LightOwner:MayoSite Name:

NC30000009NC_WILD

PERSONCounty:PRVStatus:4166.9736328125Acres:Game LandSite Type:

Carolina Power & LightOwner:MayoSite Name:

NC30000008NC_WILD

PERSONCounty:PRVStatus:1242.84973144531Acres:Game LandSite Type:

Carolina Power & LightOwner:MayoSite Name:

NC30000006NC_WILD

Map IDDirectionDistance EDR ID NumberDatabase

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGS®

Page 38: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TC3887559.1s Page 16

Not ReportedNot ReportedNot ReportedNot ReportedBasementNot ReportedNot ReportedNot ReportedNot ReportedLiving Area - 2nd Floor0%0%100%1.200 pCi/LLiving Area - 1st Floor

% >20 pCi/L% 4-20 pCi/L% <4 pCi/LAverage ActivityArea

Number of sites tested: 1

Federal Area Radon Information for PERSON COUNTY, NC

: Zone 3 indoor average level < 2 pCi/L. : Zone 2 indoor average level >= 2 pCi/L and <= 4 pCi/L. Note: Zone 1 indoor average level > 4 pCi/L.

Federal EPA Radon Zone for PERSON County: 3

1.10.80.952

__________________________________Max pCi/LMin pCi/LAvg pCi/LNum Results

Radon Test Results

State Database: NC Radon

AREA RADON INFORMATION

®GEOCHECK - PHYSICAL SETTING SOURCE MAP FINDINGSRADON

®

Page 39: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

TOPOGRAPHIC INFORMATION

USGS 7.5’ Digital Elevation Model (DEM)Source: United States Geologic SurveyEDR acquired the USGS 7.5’ Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM correspondsto the USGS 1:24,000- and 1:25,000-scale topographic quadrangle maps. The DEM provides elevation datawith consistent elevation units and projection.

HYDROLOGIC INFORMATION

Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 2003 & 2011 from the FederalEmergency Management Agency (FEMA). Data depicts 100-year and 500-year flood zones as defined by FEMA.

NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDRin 2002, 2005 and 2010 from the U.S. Fish and Wildlife Service.

State Wetlands Data: Wetlands InventorySource: Department of Environment & Natural ResourcesTelephone: 919-733-2090

HYDROGEOLOGIC INFORMATION

AQUIFLOW Information SystemR

Source: EDR proprietary database of groundwater flow informationEDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater

flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and hasextracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water tableinformation.

GEOLOGIC INFORMATION

Geologic Age and Rock Stratigraphic UnitSource: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digitalrepresentation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994).

STATSGO: State Soil Geographic DatabaseSource: Department of Agriculture, Natural Resources Conservation ServicesThe U.S. Department of Agriculture’s (USDA) Natural Resources Conservation Service (NRCS) leads the nationalConservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soilsurvey information for privately owned lands in the United States. A soil map in a soil survey is a representationof soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO)soil survey maps.

SSURGO: Soil Survey Geographic DatabaseSource: Department of Agriculture, Natural Resources Conservation Services (NRCS)Telephone: 800-672-5559SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Services, mappingscales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used toconstruct the soil maps in the Soil Survey Geographic (SSURGO) database. SSURGO digitizing duplicates theoriginal soil survey maps. This level of mapping is designed for use by landowners, townships and countynatural resource planning and management.

TC3887559.1s Page A-17

PHYSICAL SETTING SOURCE RECORDS SEARCHED

Page 40: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

LOCAL / REGIONAL WATER AGENCY RECORDS

FEDERAL WATER WELLS

PWS: Public Water SystemsSource: EPA/Office of Drinking WaterTelephone: 202-564-3750Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at

least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources.

PWS ENF: Public Water Systems Violation and Enforcement DataSource: EPA/Office of Drinking WaterTelephone: 202-564-3750Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after

August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS).

USGS Water Wells: USGS National Water Inventory System (NWIS)This database contains descriptive information on sites where the USGS collects or has collected data on surfacewater and/or groundwater. The groundwater data includes information on wells, springs, and other sources of groundwater.

STATE RECORDS

North Carolina Public Water Supply WellsSource: Department of Environmental HealthTelephone: 919-715-3243

OTHER STATE DATABASE INFORMATION

NC Natural Areas: Significant Natural Heritage AreasSource: Center for Geographic Information and AnalysisTelephone: 919-733-2090A polygon converage identifying sites (terrestrial or aquatic that have particular biodiversity significance.

A site’s significance may be due to the presenceof rare species, rare or hight quality natural communities, orother important ecological features.

NC Game Lands: Wildlife Resources Commission Game LandsSource: Center for Geographic Information and AnalysisTelephone: 919-733-2090All publicly owned game lands managed by the North Carolina Wildlife Resources Commission and as listed in Hunting

and Fishing Maps.

NC Natural Heritage Sites: Natural Heritage Element Occurrence SitesSource: Center for Geographic Information and AnalysisTelephone: 919-733-2090A point coverage identifying locations of rare and endangered species, occurrences of exemplary or unique natural

ecosystems (terrestrial or aquatic), and special animal habitats (e.g., colonial waterbird nesting sites).

RADON

State Database: NC RadonSource: Department of Environment & Natural ResourcesTelephone: 919-733-4984Radon Statistical and Non Statiscal Data

Area Radon InformationSource: USGSTelephone: 703-356-4020The National Radon Database has been developed by the U.S. Environmental Protection Agency(USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey.The study covers the years 1986 - 1992. Where necessary data has been supplemented by information collected atprivate sources such as universities and research institutions.

TC3887559.1s Page A-18

PHYSICAL SETTING SOURCE RECORDS SEARCHED

Page 41: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

EPA Radon ZonesSource: EPATelephone: 703-356-4020Sections 307 & 309 of IRAA directed EPA to list and identify areas of U.S. with the potential for elevated indoorradon levels.

OTHER

Airport Landing Facilities: Private and public use landing facilitiesSource: Federal Aviation Administration, 800-457-6656

Epicenters: World earthquake epicenters, Richter 5 or greaterSource: Department of Commerce, National Oceanic and Atmospheric Administration

Earthquake Fault Lines: The fault lines displayed on EDR’s Topographic map are digitized quaternary faultlines, preparedin 1975 by the United State Geological Survey

STREET AND ADDRESS INFORMATION

© 2010 Tele Atlas North America, Inc. All rights reserved. This material is proprietary and the subject of copyright protectionand other intellectual property rights owned by or licensed to Tele Atlas North America, Inc. The use of this material is subjectto the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material.

TC3887559.1s Page A-19

PHYSICAL SETTING SOURCE RECORDS SEARCHED

Page 42: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

APPENDIX B

EXAMPLE SURVEY QUESTIONNAIRE

Page 43: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Harry K. SiderisSenior Vice-President

Environment, Health & Safety

526 South Church Street:Mail Code EC13WS

Charlotte, North Carolina 28202

October 3, 2014 Recipient's Full Name Recipient's Company Name Street Address City, State ZIP Subject: Drinking Water Supply Survey within Half-Mile Radius of [Plant Name] Dear Mr. / Ms. / Mrs. / Dr. Name: Duke Energy is conducting comprehensive site assessments at operating and retired coal-fired power plants across the state, as required by the Coal Ash Management Act of 2014 recently passed by the North Carolina legislature. One aspect of these assessments seeks to identify private water supply wells within a half-mile radius of the [Plant name].

You are receiving this letter because county real estate records indicate that you own property within this half-mile radius; however, it does not mean that your property is at an environmental risk. We need your assistance to provide information about your property for the purpose of completing the comprehensive site assessment.

Duke Energy has contracted with HDR Engineering, Inc. (HDR) to assist in collecting this site information. We ask that you complete the enclosed survey and return in the enclosed, pre-paid envelope by October 20, 2014.

As part of Duke Energy’s commitment to protecting the environment, the company regularly monitors the groundwater around the plant and submits all results to the North Carolina Department of Environment and Natural Resources (NCDENR), the state agency responsible for groundwater quality. The information you provide in response to this well survey will be compiled with information from other neighbors and forwarded to NCDENR. NCDENR will use these survey responses along with technical information about local geology and groundwater to develop future groundwater monitoring requirements.

Thank you for your assistance. If you have any questions, please contact Rhonda Isham, Public Involvement Coordinator for SynTerra, at 864-527-4654.

Sincerely,  

 

Harry Sideris Environmental, Health, and Safety Enclosures

Page 44: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

WATER SUPPLY WELL INFORMATION

Please provide the following information (to the best of your knowledge) Return the survey via the enclosed stamped envelope by October 20, 2014

Questions please contact Rhonda Isham, SynTerra (864) 527-4654

Name and telephone number of the person completing the survey:

Name: _____________________________________________________

Telephone number (optional): ___________________________________

Address(es) of properties in the area that you own:

What is the source of your drinking water (check all that apply)?

County Water Well Other (explain below)

Is there a well(s) on this property(s)? YES NO

If the answer is ‘NO’, please disregard the remaining questions, and return the survey in the enclosed stamped envelope.

If the answer is “YES” to the above question, please proceed to the back page of this survey.

Page 45: SECTION PAGE Quality/Aquifer Protection/Coal Ash Groundwater...stormwater outfalls are also authorized for Mayo Plant. 2.2 Description of Surrounding Properties Properties located

Address of property with well:

What is the well(s) used for? (check all that apply)

Drinking Irrigation Swimming Pool Water Livestock

Well Not In Use Other (specify:__________________________)

How many residences are connected to the well(s) – List address(es) below:

Please provide any of the following information which is readily available. (The information

may be documented on a tag on your well.)

Well depth(s): __________ Date well(s) installed: _______________

Casing depth of the well(s): ________ Screen interval of the well(s): __________

Additional well information: ___________________________________________

In the space below, describe or draw the location of the water supply well on your property. (i.e., near mailbox, front yard)

Please return this survey in the enclosed envelope by October 20, 2014. Thank you.

Questions – contact Rhonda Isham, SynTerra, at (864) 527-4654.