NC0004987_Appendix I_Screening-Level Risk Assessment_20150908

Trustee Letters and Responses

FNDuke Energy I Marshall Steam Station
May 20, 2015
National Park Service
William Reynolds
100 Alabama Street, NW
1924 Building
Atlanta, GA 30303
Re: Request for Information
Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, NC 28682
HDR is working with Duke Energy Carolinas, LLC to prepare a Comprehensive Site
Assessment for the above -referenced site (see attached site map for project
location). The North Carolina Department of Environment and Natural Resources
Guidelines for Performing Screening Level Ecological Risk Assessments require
identification of certain natural and cultural resources and sensitive environments.
Based on this requirement, we are requesting the following:
1. Are there any federally listed threatened, endangered or candidate species
(plant or animal), or critical habitat within the vicinity of this project?
2. Do any sensitive environmental areas exist adjacent to or within 1/2 mile of
the site (e.g., Federal and State parks, National and State monuments,
wetlands, other areas that provide unique and often protected habitat for
wildlife species -these areas are typically used during critical life stages such
as breeding, hatching, rearing of young and overwintering)?
3. Are any wetland areas such as marshes or swamps on or adjacent to the
site? (Wetlands are defined in 40 CFR §232.2 as "Areas inundated or
saturated by surface or groundwater at a frequency and duration sufficient to
support, and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.")
4. Does the site serve or potentially serve as a habitat, foraging area or refuge
by rare, threatened, endangered, candidate and/or proposed species (plants
or animals), or any otherwise protected species?
5. Is the site potentially used as a breeding, roosting or feeding area by
migratory bird species and if so, which ones?
6. Is the site used by any ecologically, recreationally or commercially important
species?
7. Are there any areas on or within 1/2 mile that is owned or used by local
tribes?
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

F)l Duke Energy I Marshall Steam Station
Please contact me if you need any additional details to respond to our request for
information.
Regards,
/�� - ve-�
Lisa K. Voyce, MSEnE/Toxicology
Project Manager/Associate/Risk Assessor
HDR
One International Boulevard
loth Floor, Suite 1000
Mahwah, NJ 07495
D 201-335-9439 M 973-558-3910
[e-mail]
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

SITE LOCATION MAP
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC
CATAWBA COUNTY, NORTH CAROLINA
SEPTEMBER 2014
FIGURE
1

From: Faehner, Bryan
To: ice, Lisa
Cc: Ben West; Zurlo, Carol
Subject: NPS Review of Duke Steam Stations
Date: Wednesday, June 03, 2015 8:46:48 AM
OFFICIAL CORRESPONDENCE VIA ELECTRONIC MAIL
NO HARD COPY TO FOLLOW
United States Department of the Interior
NATIONAL PARK SERVICE
Southeast Regional Office
Atlanta Federal Center
1924 Building
too Alabama St., S. W.
Atlanta, Georgia 30303
Lisa K. Voyce
HDR
One International Boulevard loth Floor, Suite l000
Mahwah, NJ 07495
Dear Ms. Voyce:
We appreciate HDR contacting the National Park Service (NPS) to see whether we have any initial
comments relating to resources near Duke Riverbend, Duke Allen, Duke Marshall, Duke Dan
River, Duke Cliffside, Duke Buck, and Duke Belews Creek Steam Stations.
Based on the information provided in your May 20, 2015 correspondences, the NPS has not identified any
resource concerns at this time. However, the NPS may contact Duke Energy Carolinas, LLC or choose to
comment to the appropriate federal and/or state agency once additional information and details are made known
regarding possible changes to the current facilities.
To expedite future reviews, please mail all requests to my attention. Please contact me at 202-513-7256 if you
have any further questions.
Sincerely,
//signed//
Bryan Faehner
Energy & Environmental Protection Specialist
National Park Service, Southeast Region
1201 Eye Street NW
llth Floor, Room 48
Washington, DC 20005
202-513-7256 desk phone
202-604-5076 cell phone
202-371-2131 fax
I.I

FNDuke Energy I Marshall Steam Station
May 20, 2015
NC Division of Parks and Recreation
Allison Weakley
1601 Mail Service Center
Raleigh, NC 27699-1601
Re: Request for Information
Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, NC 28682
HDR is working with Duke Energy Carolinas, LLC to prepare a Comprehensive Site
Assessment for the above -referenced site (see attached site map for project
location). The North Carolina Department of Environment and Natural Resources
Guidelines for Performing Screening Level Ecological Risk Assessments require
identification of certain natural and cultural resources and sensitive environments.
Based on this requirement, we are requesting the following:
1. Are there any federally listed threatened, endangered or candidate species
(plant or animal), or critical habitat within the vicinity of this project?
2. Do any sensitive environmental areas exist adjacent to or within 1/2 mile of
the site (e.g., Federal and State parks, National and State monuments,
wetlands, other areas that provide unique and often protected habitat for
wildlife species -these areas are typically used during critical life stages such
as breeding, hatching, rearing of young and overwintering)?
3. Are any wetland areas such as marshes or swamps on or adjacent to the
site? (Wetlands are defined in 40 CFR §232.2 as "Areas inundated or
saturated by surface or groundwater at a frequency and duration sufficient to
support, and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.")
4. Does the site serve or potentially serve as a habitat, foraging area or refuge
by rare, threatened, endangered, candidate and/or proposed species (plants
or animals), or any otherwise protected species?
5. Is the site potentially used as a breeding, roosting or feeding area by
migratory bird species and if so, which ones?
6. Is the site used by any ecologically, recreationally or commercially important
species?
7. Are there any areas on or within 1/2 mile that is owned or used by local
tribes?
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

F)l Duke Energy I Marshall Steam Station
Please contact me if you need any additional details to respond to our request for
information.
Regards,
4V
/
Lisa K. Voyce, MSEnE/Toxicology
Project Manager/Associate/Risk Assessor
HDR
One International Boulevard
10th Floor, Suite 1000
Mahwah, NJ 07495
D 201-335-9439 M 973-558-3910
[e-mail]
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

SITE LOCATION MAP
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC
CATAWBA COUNTY, NORTH CAROLINA
SEPTEMBER 2014
FIGURE
1

NCDENR
North Carolina Department of Environment and Natural Resources
Office of Land and Water Stewardship
Pat McCrory Bryan Gossage
Governor Director
June 9, 2015
Ms. Lisa K. Voyce
HDR Engineering, Inc.
One International Boulevard
101h floor, Suite 1000
Mahwah, New Jersey 07495-0027
[e-mail]
RE: Duke Energy— Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, Catawba County, North Carolina
Dear Ms. Voyce:
Donald R. van der Vaart
Secretary
Thank you for the opportunity to provide information from the North Carolina Natural Heritage Program
(NCNHP) database for the proposed project referenced above. Our office received Geographic
Information System (GIS) data for the proposed project area from Carol Zurlo, Project Scientist with HDR
Engineering, Inc., on May 26, 2015. Based on the proposed protect area as submitted, the NCNHP
database does show records for a rare species, important natural community and a natural area within
the project area. The database also shows a record for a special animal assemblage within the project
area.
Attached are tables showing records from the NCNHP database for element occurrences (rare species
and natural communities), natural areas, and conservation/managed areas that have been documented
within/adjacent to the project area and records documented within a one -mile radius of the project
area. Also attached is a map that shows natural heritage resources documented within/adjacent to the
project area and within one mile of the project area. The locations of natural areas and conservation/
managed areas may be viewed by accessing the Natural Heritage Data Explorer online map viewer, or by
downloading and using GIS data; both options are available from the NCNHP Data Services webpage
(see www.ncnhp.org).
Please note that occurrences of rare species documented within one mile of the proposed project area
increase the likelihood that these species may be present within the project area if suitable habitat
exists. The use of Natural Heritage Program data should not be substituted for actual field surveys if
needed, particularly if the project area contains documented occurrences or suitable habitat for rare
species. If rare species are found during field surveys, the NCNHP would appreciate receiving this
information so that we may update our database.
Thank you for your inquiry, and please feel free to contact me at [e-mail] or 919-
707-8629 if you have questions or additional information is needed.
1601 Mail Service Center, Raleigh, North Carolina 27699-1601
Phone: [phone] \ Internet: www.ncdenr.gov
An Equal Opportunity \ Affirmative Action Employer— Made in part by recycled paper

Duke Energy— Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, Catawba County, North Carolina
June 9, 2015
Page 2
Sincerely,
Allison Schwarz Weakley, Conservation Planner
NC Natural Heritage Program

Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Intersecting the Project Area
Duke Energy - Marshall Steam Station
June 9, 2015
NCNHDE-347
Element Occurrences
Documented Within Project Area
Taxonomic
EO ID
Scientific Name Common Name
Last
Element
Accuracy Federal State
Global
State
Group
Observation
Occurrence
Status Status
Rank
Rank
JL
Date
Status
Animal
23859
Colonial Wading Bird ---
2004
Current
3-Medium --- ---
G5
S3
Assemblage
Colony
Bird
31301
Haliaeetus leucocephalus Bald Eagle
2011
Current
3-Medium Bald/Golden Threatened
G5
S3B,S3
Eagle
N
Protection
Act
Natural
28428
Dry Oak --Hickory Forest ---
2010
Current
3-Medium --- ---
G4G5
S4
Community (Piedmont Subtype)
Natural Areas Documented Within Project Area
Site Name Representational Rating Collective Rating
Lake Norman Slopes and Shoreline R5 (General) C5 (General)
No Managed Areas Documented within the Project Area
Definitions and an explanation of status designations and codes can be found at https:Hncnhde.natureserve.org/content/help. Data query generated on June 9, 2015; source: NCNHP, Q2 April 2015. Please resubmit your
information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database.
Page 3 of 5

Natural Heritage Element Occurrences, Natural Areas, and Managed Areas Within a One -mile Radius of the Project Area
Duke Energy - Marshall Steam Station
June 9, 2015
NCNHDE-347
Element Occurrences
Documented Within a One -mile Radius of the Project Area
Taxonomic
EO ID Scientific Name Common Name Last Element
Accuracy Federal State Global
State
Group
9 Observation Occurrence
Status Status Rank
Rank
Date Status
Animal
23859 Colonial Wading Bird --- 2004 Current
3-Medium --- --- G5
S3
Assemblage
Colony
Bird
31301 Haliaeetus leucocephalus Bald Eagle 2011 Current
3-Medium Bald/Golden Threatened G5
S3B,S3
Eagle
N
Protection
Act
Freshwater Fish 17305 Carpiodes sp. cf. velifer Atlantic Highfin 1974-04-14
Carpsucker
Natural 28428 Dry Oak --Hickory Forest --- 2010
Community (Piedmont Subtype)
Vascular Plant 1607 Acmispon helleri Carolina Birdfoot-trefoil 1958-08-07
Vascular Plant 12391 Carex projecta Necklace Sedge 1958-07
Natural Areas Documented Within a One -mile Radius of the Project Area
Site Name Representational Rating
Lake Norman Slopes and Shoreline R5 (General)
No Managed Areas are Documented Within a One -mile Radius of the Project Area
Historical
5-Very
--- Special
GNR
S1
Low
Concern
Current
3-Medium
--- ---
G4G5
S4
Historical
4-Low
Species of Special
G3
S3
Concern Concern
Vulnerable
Historical
4-Low
--- Significantly
G5
S1
Rare Peripheral
Collective Rating
C5 (General)
Definitions and an explanation of status designations and codes can be found at https://ncnhde.natureserve.org/content/help. Data query generated on June 9, 2015; source: NCNHP, Q2 April 2015. Please resubmit your
information request if more than one year elapses before project initiation as new information is continually added to the NCNHP database.
Page 4 of 5

d
Z�
NCNHDE-347: Duke Energy - Marshall Steam Station
Sh err
For
June 9, 2015
Project Boundary Q NHP Natural Area (NHNA)
Buffered Project Boundary
EJ Natural Heritage Element Occurrence (NHEO)
1:43,245
0 0.375 0.75 1.5 mi
0 0.5 1 2 km
Sources: sri, HERE, DeLorme, TomTom, Intermap, increment P Corp.,
E
GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL,
Page 5 of 5

FNDuke Energy I Marshall Steam Station
May 19, 2015
Renee Gledhill -Earley
Environmental Review Coordinator
NC State Historic Preservation Office
4617 Mail Service Center
Raleigh, NC 27699-4617
Re: Request for Information
Marshall Steam Station
8320 NC Highway 150 East, Terrell, NC 28682
HDR is working with Duke Energy Carolinas, LLC to prepare a Comprehensive Site
Assessment for the above -referenced site (see attached site map for project
location). The North Carolina Department of Environment and Natural Resources
Guidelines for Performing Screening Level Ecological Risk Assessments require
identification of certain natural and cultural resources and sensitive environments.
Based on this requirement, we are requesting the following:
1. Are there any federally listed threatened, endangered or candidate species
(plant or animal), or critical habitat within the vicinity of this project?
2. Do any sensitive environmental areas exist adjacent to or within 1/2 mile of
the site (e.g., Federal and State parks, National and State monuments,
wetlands, other areas that provide unique and often protected habitat for
wildlife species -these areas are typically used during critical life stages such
as breeding, hatching, rearing of young and overwintering)?
3. Are any wetland areas such as marshes or swamps on or adjacent to the
site. (Wetlands are defined in 40 CFR §232.2 as "Areas inundated or
saturated by surface or groundwater at a frequency and duration sufficient to
support, and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.")?
4. Does the site serve or potentially serve as a habitat, foraging area or refuge
by rare, threatened, endangered, candidate and/or proposed species (plants
or animals), or any otherwise protected species?
5. Is the site potentially used as a breeding, roosting or feeding area by
migratory bird species and if so, which ones?
6. Is the site used by any ecologically, recreationally or commercially important
species?
7. Are there any areas on or within 1/2 mile that is owned or used by local
tribes?
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

F)l Duke Energy I Marshall Steam Station
Please contact me if you need any additional details to respond to our request for
information.
Regards,
.
Lisa K. Voyce, MSEnE/Toxicology
Project Manager/Associate/Risk Assessor
HDR
One International Boulevard
10th Floor, Suite 1000
Mahwah, NJ 07495
D 201-335-9439 M 973-558-3910
[e-mail]
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

SITE LOCATION MAP
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC
CATAWBA COUNTY, NORTH CAROLINA
SEPTEMBER 2014
FIGURE
1

North Carolina Department of Cultural Resources
State Historic Preservation Office
Ramona M. Bartos, Administrator
Governor Pat McCrory
Secretary Susan Kluttz
June 23, 2015
Lisa Voyce
HDR
One International Boulevard
10`' Floor, Suite 1000
Mahwah, NJ 07495
Re: Marshall Steam Station, 8320 NC 150 East, Terrell, Catawba County, ER 15-1161
Dear Ms. Voyce:
Thank you for your letter of May 19, 2015, concerning the above project.
Office of Archives and History
Deputy Secretary Kevin Cherry
We have conducted a review of the project and are aware of no historic resources which would be affected by the
project. Therefore, we have no comment on the project as proposed.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
Advisory Council on Historic Preservation's Regulations for Compliance with Section 106 codified at 36 CFR Part
800.
Thank you for your cooperation and consideration. If you have questions concerning the above comment, contact
Renee Gledhill -Earley, environmental review coordinator, at 919-807-6579 or environmental.reviewkncdcr.gov.
In all future communication concerning this project, please cite the above referenced tracking number.
Sincerely,
✓Ramona M. Bartos
Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699-4617 Telephone/Fax: [phone]-6599

FNDuke Energy I Marshall Steam Station
May 21, 2015
North Carolina Wildlife Resources Commission
Shannon Deaton
1701 Mail Service Center
Raleigh, NC 27699-1701
Re: Request for Information
Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, NC 28682
HDR is working with Duke Energy Carolinas, LLC to prepare a Comprehensive Site
Assessment for the above -referenced site (see attached site map for project
location). The North Carolina Department of Environment and Natural Resources
Guidelines for Performing Screening Level Ecological Risk Assessments require
identification of certain natural and cultural resources and sensitive environments.
Based on this requirement, we are requesting the following:
1. Are there any federally listed threatened, endangered or candidate species
(plant or animal), or critical habitat within the vicinity of this project?
2. Do any sensitive environmental areas exist adjacent to or within 1/2 mile of
the site (e.g., Federal and State parks, National and State monuments,
wetlands, other areas that provide unique and often protected habitat for
wildlife species -these areas are typically used during critical life stages such
as breeding, hatching, rearing of young and overwintering)?
3. Are any wetland areas such as marshes or swamps on or adjacent to the
site? (Wetlands are defined in 40 CFR §232.2 as "Areas inundated or
saturated by surface or groundwater at a frequency and duration sufficient to
support, and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.")
4. Does the site serve or potentially serve as a habitat, foraging area or refuge
by rare, threatened, endangered, candidate and/or proposed species (plants
or animals), or any otherwise protected species?
5. Is the site potentially used as a breeding, roosting or feeding area by
migratory bird species and if so, which ones?
6. Is the site used by any ecologically, recreationally or commercially important
species?
7. Are there any areas on or within 1/2 mile that is owned or used by local
tribes?
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

F)l Duke Energy I Marshall Steam Station
Please contact me if you need any additional details to respond to our request for
information.
Regards,
4V
/
Lisa K. Voyce, MSEnE/Toxicology
Project Manager/Associate/Risk Assessor
HDR
One International Boulevard
10th Floor, Suite 1000
Mahwah, NJ 07495
D 201-335-9439 M 973-558-3910
[e-mail]
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

SITE LOCATION MAP
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC
CATAWBA COUNTY, NORTH CAROLINA
SEPTEMBER 2014
FIGURE
1

IQ North Carolina Wildlife Resources Commission E
Gordon Myers, Executive Director
June 19, 2015
Ms. Lisa K. Voyce
HDR
One International Boulevard, 10"' Floor, Suite 1000
Mahwah, NJ 07495
Subject: Request for Information for Marshall Steam Station, 8320 N.C. Highway 150 East, Terrell,
Catawba County, North Carolina.
Dear Ms. Voyce:
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the
subject information. Our comments are provided in accordance with provisions of the Fish and Wildlife
Coordination Act (48 Stat. 401, as amended; 16 U. S.C. 661-667e) and North Carolina General Statutes
(G.S. 113-131 et seq.).
The site drains to Lake Norman in the Catawba River basin. A request for information has been
made regarding the following natural and cultural resources, and sensitive environments.
1. Are there any federally listed threatened, endangered or candidate species (plant or animal), or
critical habitat within the vicinity of this project?
The U.S. Fish and Wildlife Service recently listed the Northern long-eared bat (Myotis
septentrionalis) as threatened under the Endangered Species Act. We suggest contacting the U.S.
Fish and Wildlife Service at [phone] regarding this species and any other federally listed
species or critical habitat within the vicinity of the site.
There are records for the state threatened bald eagle (Haliaeetus leucocephalus) near the site. In
addition, there are historical records for the federal species of concern and state special concern —
vulnerable Carolina birdfoot-trefoil (Acmispon helleri) near the site.
Although we do not have any records for a federal or state listed species on the site, this does not
preclude the presence of a listed species on or adjacent to the site. It simply may mean the site
has not been surveyed. An on -site survey is the only definitive means to determine whether a
listed species is present on the site.
2. Do any sensitive environmental areas exist adjacent to or within Y2 mile of the site (e.g.,
Federal and State parks, National and State monuments, wetlands, other areas that provide
unique and often protected habitatfor wildlife species -these areas are typically used during
critical life stages such as breeding, hatching, rearing of young and overwintering)?
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
Telephone: [phone] • Fax: [phone]

Page 2
June 19, 2015
Marshall Steam Station
The Natural Heritage Natural Area — Lake Norman Slopes and Shoreline — is located within'/2
mile of the site.
3. Are any wetland areas such as marshes or swamps on or adjacent to the site? (Wetlands are
defined in 40 CFR §232.2 as "Areas inundated or saturated by surface or groundwater at a
frequency and duration sufficient to support, and that under normal circumstances does
support, a prevalence of vegetation typically adapted for life in saturated soil conditions. ")
Unknown; we do not have any data regarding whether there are any wetland areas on or adjacent
to the site. Although USGS topographic maps and National Wetlands Inventory (NWI) maps
provide a general overview of stream and wetland resources, these should not be used to
determine whether streams or wetlands are present on the site. Wetlands and streams within the
site boundaries should be identified through on -site surveys. If wetlands and/or streams will be
impacted by any construction activities, then the project should be coordinated with the U.S.
Army Corps of Engineers and the N.C. Division of Water Resources.
4. Does the site serve or potentially serve as a habitat, foraging area or refuge by rare, threatened,
endangered, candidate and/or proposed species (plants or animals), or any otherwise protected
species?
Unknown; we do not have any data regarding whether the site serves as habitat for listed aquatic
or terrestrial wildlife species; however bald eagles nest and forage in the area. We do not have
any information regarding whether the site serves as habitat for listed plant species; this is not
within our area of expertise or purview.
S. Is the site potentially used as a breeding, roosting or feeding area by migratory bird species and
if so, which ones?
Unknown; we do not have any data regarding whether the site serves as habitat for migratory bird
species. However, there are records for a colonial wading bird colony (great blue heron) on or
adjacent to the site.
6. Is the site used by any ecologically, recreationally or commercially important species?
Unknown; we do not have any data regarding whether the site is used by any ecologically,
recreationally, or commercially important species. However, there is recreational fishing in Lake
Norman. Recreational species include: striped bass, largemouth bass, spotted bass, catfish,
crappie, sunfish, and white perch.
7. Are there any areas on or within '/2 mile that is owned or used by local tribes?
We do not have any information regarding local tribes in the area; this is not within our purview.
If we can provide further assistance, please contact our office at [phone] or
shari.bryantgncwildlife. org.
Sincerely,
Shari L. Bryant
Western Piedmont Coordinator
Habitat Conservation
ec: Allen Ratzlaff, USFWS

FNDuke Energy I Marshall Steam Station
May 21, 2015
USDA Forest Service
National Forests in North Carolina
Heather Luczak
160 Zillicoa Street, Suite A
Asheville, NC 28801
Re: Request for Information
Marshall Steam Station
8320 North Carolina Highway 150 East, Terrell, NC 28682
HDR is working with Duke Energy Carolinas, LLC to prepare a Comprehensive Site
Assessment for the above -referenced site (see attached site map for project
location). The North Carolina Department of Environment and Natural Resources
Guidelines for Performing Screening Level Ecological Risk Assessments require
identification of certain natural and cultural resources and sensitive environments.
Based on this requirement, we are requesting the following:
1. Are there any federally listed threatened, endangered or candidate species
(plant or animal), or critical habitat within the vicinity of this project?
2. Do any sensitive environmental areas exist adjacent to or within 1/2 mile of
the site (e.g., Federal and State parks, National and State monuments,
wetlands, other areas that provide unique and often protected habitat for
wildlife species -these areas are typically used during critical life stages such
as breeding, hatching, rearing of young and overwintering)?
3. Are any wetland areas such as marshes or swamps on or adjacent to the
site? (Wetlands are defined in 40 CFR §232.2 as "Areas inundated or
saturated by surface or groundwater at a frequency and duration sufficient to
support, and that under normal circumstances does support, a prevalence of
vegetation typically adapted for life in saturated soil conditions.")
4. Does the site serve or potentially serve as a habitat, foraging area or refuge
by rare, threatened, endangered, candidate and/or proposed species (plants
or animals), or any otherwise protected species?
5. Is the site potentially used as a breeding, roosting or feeding area by
migratory bird species and if so, which ones?
6. Is the site used by any ecologically, recreationally or commercially important
species?
7. Are there any areas on or within 1/2 mile that is owned or used by local
tribes?
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

F)l Duke Energy I Marshall Steam Station
Please contact me if you need any additional details to respond to our request for
information.
Regards,
/�� - ve-�
Lisa K. Voyce, MSEnE/Toxicology
Project Manager/Associate/Risk Assessor
HDR
One International Boulevard
loth Floor, Suite 1000
Mahwah, NJ 07495
D 201-335-9439 M 973-558-3910
[e-mail]
hdrinc.com 1 International Boulevard, 10th Floor, Suite 1000, Mahwah, NJ 07495-0027
[phone]

SITE LOCATION MAP
MARSHALL STEAM STATION
DUKE ENERGY CAROLINAS, LLC
CATAWBA COUNTY, NORTH CAROLINA
SEPTEMBER 2014
FIGURE
1

From:
Luczak, Heather L -FS
To:
Zurlo, Carol
Subject:
RE: USFS - Riverbend Steam Station
Date:
Thursday, May 28, 2015 10:48:00 AM
Attachments:
imaae001.ono
imaae002.pnna
imaae003.i)ng
Ms. Zurlo,
There are no any Designated and Proposed Federal Wilderness and Natural Areas, National
Preserves and Forests, or Federal Land Designated for the Protection of Natural Ecosystems within a
half mile of the properties listed below:
• Riverbend Steam Station 175 Steam Plant Road, Mt. Holly, INC 28120
• Marshall Steam Station 8320 North Carolina Highway 150 East, Terrell, NC 28682
• Dan River Steam Station 524 S. Edgewood Road, Eden, NC 27288
• Cliffside Steam Station 573 Duke Power Road, Mooresboro, NC 28114
• Buck Steam Station 1555 Dukeville Road, Salisbury, NC 28146
• Belews Creek Steam Station 3195 Pine Hall Road, Belews Creek, NC 27009
• Allen Steam Station 253 Plant Allen Road, Belmont, NC 28012
Heather Luczak
Assistant Forest Planner
Forest Service
National Forests in NC
p: 828-257-4817
f: 828-259-0567
hluczakWs.fed.us
160 Zillicoa St. Suite A
Asheville, NC 28805
www.fs.fed.us
Caring for the land and serving people
From: Zurlo, Carol [mailto:[e-mail]]
Sent: Thursday, May 21, 2015 1:20 PM
To: Luczak, Heather L -FS
Subject: USFS - Riverbend Steam Station
Please see the attached pdf for our request for information and a site location map. Additional site
location details are provided below.
The Duke Riverbend Steam Station is located at 175 Steam Plant Road, Mt. Holly, NC 28120. It is
located in Gaston County, between the south bank of the Catawba River on Mountain Island Lake and
the north side of Horseshoe Bend Beach Road. The site comprises 340.7 acres.
Thank you,
Carol Zurlo
Project Scientist

HDR
1 International Blvd
10th Floor, Suite 1000
Mahwah, NJ 07495
D 201.335.9451 M 212.920.6088
carol.zurlo(cDhdrinc.com

Checklist for Ecological Assessments 1 Sampling

CHECKLIST FOR ECOLOGICAL ASSESSMENTS / SAMPLING
I. SITE LOCATION
1. Site Name Marshall Steam Station
US EPA ID Number 110000351397
The site is located north of NC Hwy 150, east of Sherrills Ford Road, south of Island Point
Location Road
County Catawba City Terrell State NC
2. Latitude 35.593748
Longitude-80.9656
3. Attach site maps, including a topographical map, a diagram which illustrates the layout of the facility (e.g.,
site boundaries, structures, etc.), and maps showing all habitat areas identified in Section III of the checklist.
Also, include maps which illustrate known and suspected release areas, sampling locations and any other
important features, if available.
II. SITE CHARACTERIZATION
1. Indicate the approximate area of the site (i.e., acres or sq. ft.) Approximately 1,386 acres
2. Is this the first site visit? © Yes ❑ No
If no, attach trip report of previous site visit(s), if available.
Date(s) of previous site visit(s) March 11, 2015 — Natural Resources Avoidance Site Visit
3. Are aerial or other site photographs available? 0 Yes ❑ No
If yes, please attach any available photo(s) to the site map to the report.
See attached photographs.
4. Provide an approximate breakdown of the land uses on the site:
30 % Heavy Industrial
Residential
% Recreational
10 % Light Industrial
% Rural
40 % Undisturbed
• Urban
• Agricultural
20 % Other
a For recreational areas, please describe the use of the area (e.g., park, playing field, etc.).
N/A
b For agricultural areas, please list the crops and/or livestock which are present.
N/A
For areas designated as "other," please describe the use of the area.
Areas designated as "other" contain cleared areas and water bodies including the active ash pond.
A-5

5. Provide an approximate breakdown of the land uses in the area surrounding the site.
Indicate the radius (in miles) of the area described: lmile
% Heavy Industrial
40 % Residential
10 % Recreational
% Light Industrial
% Rural
20 % Undisturbed
% Urban
% Agricultural
30 % Other
a For recreational areas, please describe the use of the area (e.g., park, playing field, etc.).
Boat launch/private dock access for Lake Norman.
b For agricultural areas, please list the crops and/or livestock which are present.
N/A
For areas designated as "other," please describe the use of the area.
Areas designated as "other" contain water bodies (ash ponds and Lake Norman).
6. Has any movement of soil taken place at the site? ® Yes ❑ No
If yes, indicate the likely source of the disturbance (e.g., erosion, agricultural, mining, industrial activities,
removals, etc.) degree of disturbance, and estimate when these events occurred.
Industrial and remedial activities.
7. Do any sensitive environmental areas exist adjacent to or in proximity to the site, (e.g. Federal and State parks,
National and State monuments, wetlands)? Remember, flood plains and wetlands are not always obvious; do not
answer "no" without confirming information. See Table I for a list of contacts.
❑X Yes ❑ No
Please provide the source(s) of information used to identify these sensitive areas, and indicate their general
location on the site map. Stream/Wetlands (see attached map)
8. What type of facility is located at the site?
© Chemical ❑ Manufacturing ❑ Mixing
❑X Waste Disposal © Other (specify)
Steam Station — Coal Ash Ponds
9. Identify the contaminants of potential concern (COPCs) at the site. If known, include the maximum contaminant
levels. Please indicate the source of data cited (e.g., RFI, confirmatory sampling, etc.).
Constituents of Interest include CAMA detection analytes boron, calcium, chloride,
conductivity, pH, sulfate, and total dissolved solids; as well as assessment analytes
aluminum, antimony, arsenic, barium, beryllium, cadmium, chromium, copper, iron,
lead, manganese, mercury, molybdenum, selenium, sulfate, sulfide, thallium and vanadium.
COPCs TBD based on screening risk assessment results.
A-6

10. Check any potential routes of off -site migration of contaminants observed at the site:
❑X Swales ❑X Depressions ❑X Drainage Ditches
❑ Runoff ❑ Windblown Particulates ❑X Vehicular Traffic
❑ Other (specify)
11. Indicate the approximate depth to groundwater (in feet below ground surface [(bgs)].
The depth to groundwater is variable and ranges from 3-45 feet bgs.
12. Indicate the direction of groundwater flow (e.g., north, southeast, etc.).
Southeast toward Lake Norman
13. Is the direction of surface runoff apparent from site observations? ❑X Yes ❑ No
If yes, to which of the following does the surface runoff discharge? Indicate all that apply.
❑X Surface Water ❑
❑ Collection Impoundment
Groundwater ❑ Sewer
14. Is there a navigable water body or tributary to a navigable water body?
❑X Yes ❑ No
15. Is there a water body anywhere on or in the vicinity of the site? If yes, also complete Section III.B.1: Aquatic Habitat
Checklist -- Non -Flowing Systems and/or Section III.B.2: Aquatic Habitat Checklist -- Flowing Systems.
Several water bodies are present
❑X Yes (approx. distance: onsite. ) ❑ No
16. Is there evidence of flooding? X❑ Yes ❑ No
Wetlands and flood plains are not always obvious. Do not answer "no" without confirming information.
If yes, complete Section III.C: Wetland Habitat Checklist.
17. If a field guide was used to aid any of the identifications, please provide a reference. Also, estimate the
time spent identifying fauna. (Use a blank sheet if additional space is needed for text.)
No field guides were used. Field identification was conducted by at trained biologist familiar with regional
flora and fauna. Time assessing the site was approximately 7 hours.
18. Are any threatened and/or endangered species (plant or animal) known to inhabit the area of the site?
❑X Yes ❑ No
If yes, you are required to verify this information with the U.S. Fish and Wildlife Service or other appropriate
agencies (see Table 1 for a list of contacts). If species' identities are known, please list them next.
The North Carolina Natural Heritage Program's (NCNHP) recorded revealed a listing
for a rare species (Haliaeetus leucocephalus /Bald eagle) and special animal assemblage (Colonial Water Bird
Colony) within the site boundary.
A-7

The N.0 Wildlife Resources Commission (NCWRC) stated that there are records for the state threatened bald
Eagle (Haliaeetus leucocephalus) near the site. In addition, there are historical records for a federal species of
concern and state special concern — vulnerable Carolina birdfoot-trefoil (Acmispon helleri) near the site.
19. Record weather conditions at the site at the time of the site visit when information for completion of this checklist
was prepared:
Date: June 30.2015
Temperature (°C/°F):
Wind (direction / speed):
90OF
Cloud Cover: Sunny
Normal daily high temperature (°C/°F) 90OF
Precipitation (rain, snow)
None
20. Describe reasonable and likely future land and/or water use(s) at the site
Power veneration and ash pond remediation.
21. Describe the historical uses of the site. Include information on chemical releases that may have occurred as a result
of previous land uses. For each chemical release, provide information on the form of the chemical released (i.e.,
solid, liquid, vapor) and the known or suspected causes or mechanism of the release (i.e., spills, leaks, material
disposal, dumping, explosion, etc.).
Marshall Steam Station began operation in 1965 as a coal-fired generating station and currently operates
four coal-fired units. The coal ash residue from the station's coal combustion process has historically been
disposed in the ash basin located to the north of the station, adjacent to Lake Norman. The
discharge from the ash basin is permitted by the North Carolina Department of Environmental Resources
(NCDENR) Division of Water Resources (DWR) under the NPDES Permit NC0004987.
22. Identify the media (e.g., soil [surface or subsurface], surface water, air, groundwater) which are known or suspected
to contain COCs.
The media will be determined as part of the CSA.
A-8

II.A. SUMMARY OF OBSERVATIONS AND SITE SETTING
Include information on significant source areas and migration pathways that are likely to constitute
complete exposure pathways
Ash basins onsite; assessment of the migration pathways that are
likely to constitute complete exposure pathways will be included in Section 12 of the CSA.
Checklist Completed by: Eric Mularski, PWS
Affiliation: HDR Eneineerine Inc.
Author Assisted by:
Date:
Julv 13.2015
A-9

III. HABITAT EVALUATION
III.A Terrestrial Habitat Checklist
III.A.1 Wooded
Are any wooded areas on or adjacent to the site? 0 Yes ❑ No
If yes, indicate the wooded area on the attached site map and answer the following questions. If more than
one wooded area is present on or adjacent to the site, make additional copies of the following questions
and fill out for each individual wooded area. Distinguish between wooded areas by using names or other
designations, and clearly identify each area on the site map.
If no, proceed to Section III.A.2: Shrub/Scrub
A-10

Wooded Area Questions
❑ On -Site ❑ Off -site
Name or Designation: Mixed Hardwoods
1. Estimate the approximate size of the wooded area: 68 % 962 acres
Please identify what information was used to determine the wooded area of the site
(e.g., direct observation, photos, etc.).
2. Indicate the dominant type of vegetation in the wooded area. Provide photographs, if available
❑
Evergreen
❑
Deciduous
Mixed
Dominant tree species consist of hickories (Carya sp.), white
oak (Quercus alba), southern red oak (Quercus falcata),
northern red oak (Quercus rubra), willow oak (Quercus
phellos), post oak (Quercus stellata) loblolly pine (Pinus
taeda), and tulip poplar (Liriodendron tulipifera). See attached
Dominant plant species, if known: photographs.
3. Estimate the vegetation density of the wooded area.
❑ Dense (i.e., greater than 75% vegetation)
0 Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
4. Indicate the predominant size of the trees at the site. Use diameter at breast height.
❑
0-6 inches
❑
6-12 inches
❑
>12 inches
0
No single size range is predominant
5. Specify type of understory present, if known. Provide a photograph, if available.
Dominant understory species consist of American holly (Ilex opaca), sweetgum (Liquidambar
styraciflua), red mulberry (Morus rubra), redcedar (Juniperus virginiana), sourwood (Oxydendrum
arboreum) and flowering dogwood (Cornus florida). See attached photograph.
A-11

Wooded Area Questions
0 On -Site ❑ Off -site
Name or Designation: Bottomland Hardwoods
1. Estimate the approximate size of the wooded area: 1 % 19.4 acres
Please identify what information was used to determine the wooded area of the site
(e.g., direct observation, photos, etc.).
2. Indicate the dominant type of vegetation in the wooded area. Provide photographs, if available
❑
Evergreen
❑X
Deciduous
❑
Mixed
Red maple (Acer rubrum), green ash (Fraxinus pennsylvanica),
sycamore (Platanus occidentalis), river birch (Betula nigra),
Dominant plant species, if known: and tulip poplar. See attached photograph.
3. Estimate the vegetation density of the wooded area.
❑ Dense (i.e., greater than 75% vegetation)
0 Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
4. Indicate the predominant size of the trees at the site. Use diameter at breast height.
❑
0-6 inches
❑
6-12 inches
0
>12 inches
❑
No single size range is predominant
5. Specify type of understory present, if known. Provide a photograph, if available.
Dominant understory species consist of American elm (Ulmus americans), red maple, tag alder
(Alnus serrulata), tulip poplar, green ash, and sweetgum. See attached
A-12

Wooded Area Questions
0 On -Site ❑ Off -site
Name or Designation: Pine Plantation
1. Estimate the approximate size of the wooded area: 6 % 82.5 acres
Please identify what information was used to determine the wooded area of the site
(e.g., direct observation, photos, etc.). Site visit and aerial imagery. Photographs are attached.
2. Indicate the dominant type of vegetation in the wooded area. Provide photographs, if available
❑X
Evergreen
❑X
Deciduous
❑
Mixed
Dominant plant species, if known: Loblolly pines and Virginia pine (Pious virginiana)
3. Estimate the vegetation density of the wooded area.
0 Dense (i.e., greater than 75% vegetation)
❑ Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
4. Indicate the predominant size of the trees at the site. Use diameter at breast height.
❑
0-6 inches
0
6-12 inches
❑
>12inches
❑
No single size range is predominant
5. Specify type of understory present, if known. Provide a photograph, if available.
Dominant understory species consist of tulip poplar, sweetgum and sourwood .
See attached photograph.
A-13

III.A.2 Shrub/Scrub
Are any shrub/scrub areas on or adjacent to the site? Z Yes ❑ No
If yes, indicate the shrub/scrub area on the attached site map and answer the following questions. If more
than one shrub/scrub area is present on or adjacent to the site, make additional copies of the following
questions and fill out for each individual shrub/scrub area. Distinguish between shrub/scrub areas by
using names or other designations, and clearly identify each area on the site map.
If no, proceed to Section III.A.3: Open Field
A-14

Shrub/Scrub Area Questions
❑X On -Site ❑ Off -site
Name or Designation: Shrub -scrub — Duke Right of Way
1. Estimate the approximate size of the shrub/scrub area: 7 % 105 acres
Please identify what information was used to determine the shrub/scrub area of the site
(e.g., direct observation, photos, etc.).
2. Indicate the dominant type of shrub/scrub vegetation present, if known.
Dominant scrub/shrub species consist of sweetgum, winged elm (Ulmus alata), redcedar,
and blackberry (Rubus sp.).
3. Estimate the vegetation density of the shrub/scrub area.
X❑ Dense (i.e., greater than 75% vegetation)
❑ Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
4. Indicate the approximate average height of the shrub/scrub vegetation.
❑
0-2 feet
0
2-5 feet
❑
>5 feet
5. Specify type of understory present, if known. Provide a photograph, if available.
Herbaceous and vine understory species consist of lespedeza, bluestem (Andropogon sp.), goldenrods
(Solidago sp.), wingstem (Verbesina alternifolia), Japanese honeysuckle (Lonicera japonica), and
poison ivy (Toxicodendron radicans). See attached photograph.
A-15

111.A.3. Open Field
Are any open field areas on or adjacent to the site? X❑ Yes ❑ No
If yes, indicate the open field area on the attached site map and answer the following questions. If more
than one open field area is present on or adjacent to the site, make additional copies of the following
questions and fill out for each individual open field area. Distinguish between open field areas by using
names or other designations, and clearly identify each area on the site map.
If no, proceed to Section III.A.4: Miscellaneous
A-16

Open Field Area Questions
❑ On -Site 0 Off -site
Name or Designation: Open Fields
Estimate the approximate size of the open field area: 17 % 240 acres
Please identify what information was used to determine the open field area of the site
(e.g., direct observation, photos, etc.).
Indicate the dominant type of vegetation present, if known.
Dominant vegetation consist of asters, fescue (Fescue sp.), clover (Trifolium pratense), foxtail (Setaria
pumila), dog fennel (Eupatorium capillifolium), and other herbs.
Estimate the vegetation density of the open field area.
© Dense (i.e., greater than 75% vegetation)
❑ Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
Indicate the approximate average height of the dominant plant
Approximately 12 inches. Many
oven areas are maintained.
A-17

IH.A.4 Miscellaneous
Are other types of terrestrial habitats present at the site, other than woods, scrub/shrub, and open field?
❑ Yes 0 No
If yes, indicate the area on the attached site map and answer the following questions. If more than one of
these areas are present on or adjacent to the site, make additional copies of the following questions and fill
out for each individual area. Distinguish between areas by using names or other designations. Clearly
identify each area on the site map.
If no, proceed to Section III.13: Aquatic Habitats
A-18

Miscellaneous Area Questions
❑ On -Site ❑ Off -site
Name or Designation: N/A
1. Provide a description of the terrestrial miscellaneous habitat and identify the area on the site map.
N/A
2. Estimate the approximate size of the area: N/A % N/A acres
3. What observations, if any, were made at the site regarding the presence and/or absence of insects,
birds, mammals, etc.?
N/A
4. Review the questions in Section I to determine if any additional habitat checklists should be completed
for this site.
A-19

IIIM Aquatic Habitats
Note: Aquatic systems are often associated with wetland habitats. Please refer to Section IIhC, Wetland Habitat
Checklist.
III.13.1 Non -Flowing Systems
Are any non -flowing aquatic features (such as ponds or lakes) located at or adjacent to the site?
© Yes ❑ No
If yes, indicate the aquatic feature on the attached site map and answer the following questions regarding
the non -flowing aquatic features. If more than one non -flowing aquatic feature is present on or adjacent to
the site, make additional copies of the following questions and fill out for each individual aquatic feature.
Distinguish between aquatic features by using names or other designations. Clearly identify each area on
the site map.
Ash basins
If no, proceed to Section III.B.2: Flowing Systems
A-20

Non -Flowing Aquatic Feature Questions
❑X On -Site ❑ Off -site
Name or Designation: Ash Basin
1. Indicate the type of aquatic feature present:
❑ Natural (e.g., pond or lake)
❑X Man-made (e.g., impoundment, lagoon, canal, etc.)
2. Estimate the approximate size of the water body (in acres or sq. ft.) 382 acres
3. If known, indicate the depth of the water body (in ft. or in.) N/A
4. If a water body is present, what are its known uses (e.g.: recreation, navigation, etc.)?
Ash basin was constructed to retain and settle ash generated from coal combustion.
5. Is aquatic vegetation present? ❑ Yes ❑ No
If yes, please identify the type of vegetation present if known.
❑X Emergent ❑ Submergent ❑ Floating
6. Indicate the general composition of the bottom substrate. Mark all sources that apply from the
following list.
❑ Bedrock 0 Sand ❑ Concrete
❑ Boulder (>10 in.) ❑C Silt ❑ Debris
❑ Cobble (2.5 in — 10 in.) ❑ Clay ❑ Detritus
❑ Gravel (0.1 — 2.5 in.) ❑ Muck (fineiblack)
© Other (please specify): Ash
7. Indicate the source(s) of the water in the aquatic feature. Mark all sources that apply from the following
list.
❑ River/Stream/Creek
❑ Groundwater
Industrial Discharge
Surface Runoff
❑X Other (please specify): Rainwater
A-21

Non -Flowing Aquatic Feature Questions (Continued)
8. Is there a discharge from the facility to the aquatic feature? ❑X Yes ❑ No
If yes, describe the origin of each discharge and its migration path.
All stormwater runoff from the coal storage yard, the Flu Gas Desulfurization (FGD) landfill, ash
structural fill, closed ash basin, FGD stacker operation, FGD constructed wastewater
treatment wetlands and the bottom ash operation drains via gravity flow into the ash settling basin.
All stormwater runoff from the FGD facility area is routed through the yard sump system to the ash
settling basin. Stormwater runoff from the FGD limestone stacker operation is routed through the
yard sump system to the ash settling basin. Stormwater runoff from the ash handling silo operation is
also routed to the ash settling basin via the sump system.
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-diamater slip -lined corrugated
metal pipe which discharges into Lake Norman. The ash basin pond elevation is controlled by the use
of concrete stoplogs in the discharge tower.
9. Does the aquatic feature discharge to the surrounding environment? 0 Yes ❑ No
If yes, indicate the features from the following list into which the aquatic feature discharges, and
indicate whether the discharge occurs onsite or offsite:
❑X River / Stream / Creek ❑X On -Site ❑ Off -Site
❑ Groundwater ❑ On -Site ❑ Off -Site
❑ Wetland ❑ On -Site ❑ Off -Site
❑ Impoundment ❑ On -Site ❑ Off -Site
❑ Other (please describe)
10. Identify any field measurements and observations of water quality that were made.
Provide the measurement and the units of measure in the appropriate space below:
382 acres Area
N/A Depth (average)
N/A Temperature (depth of water where the reading was taken): N/A
N/A pH
N/A Dissolved oxygen
N/A Salinity
opaque Turbidity (clear, slightly turbid, turbid, opaque) Secchi disk depth: N/A
Other (specify)
11. Describe observed color and area of coloration.
The water was onaaue with a Breen coloration.
A-22

Non -Flowing Aquatic Feature Questions (Continued)
12. Mark the open -water, non -flowing system on the site map attached to this checklist.
See attached.
13. What observations, if any, were made at the water body regarding the presence and/or absence of
benthic macroinvertebrates, fish, birds, mammals, etc.?
No aquatic fauna was observed. Fringe scrub shrub wetlands provide habitat for migratory birds.
A colonial wadine bird colonv was noticed between the treatment wetland and the ash basin.
Several ospreys were noticed near the vicinity of the ash basin and Lake Norman.
A bald eagle nest is know to occur near the south central portion of the property between
Lake Norman and the ash basin dam. No bald eagles were observed during the field visit.
A-23

Flowing Aquatic Systems Questions
❑X On -Site ❑X Off -site
Unnamed tributaries (7) to the Catawba River (Lake Norman) with perennial flow.
Name or Designation: Stream identification and classification was conducted by AMEC in 2015.
1. Indicate the type of aquatic feature present:
❑ River
❑%� Stream / Creek / Brook
❑ Intermittent stream
❑ Artificially created (ditch, etc.)
❑ Channeling
❑ Other (specify):
2. For natural systems, are there any indicators of physical alteration (e.g., channeling, debris, etc.)?
❑X Yes ❑ No
If yes, please describe the indicators observed.
There are isolated locations indicating evidence of channelization. Rip rap has been placed along the
stream banks and in the channel bottom in several areas. Isolated areas of erosion.
3. Indicate the general composition of the bottom substrate.
❑ Bedrock © Sand
❑ Concrete
❑ Boulder (>10 in.) © Silt
❑ Debris
❑ Cobble (2.5 in —10 in.) © Clay
❑ Detritus
© Gravel (0.1 — 2.5 in.) ❑ Muck (fine/black)
❑ Marl
❑ Other (please specify):
4. Describe the condition of the bank (e.g., height, slope, extent of vegetative cover):
All channels exhibit low slopes and banks heights. Streams banks
are generally well -vegetated
with small woody and herbaceous vegetation.
5. Is the system influenced by tides? ❑ Yes © No
What information was used to make this determination?
Inland water bodies not influenced by tides.
6. Is the flow intermittent? ❑ Yes 0 No
If yes, please note the information used to make this determination.
The NC Division of Water Resource's (DWR) Stream Identification Methodology for Identification of
Intermittent and Perennial Streams and Their Origins (Version 4.11) was utilized by AMEC to
determine the flow characteristics of each identified perennial or intermittent stream. AMEC
classified these systems as perennial. Flow was visible during the site visit.
A-24

Flowing System Questions (Continued)
7. Is there a discharge from the site to the water body? © Yes ❑ No
If yes, describe the origin of each discharge and its migration path.
Surface water discharges may result from upland runoff during storm events.
8. Indicate the discharge point of the water body. Specify name of the discharge, if known.
Holdsclaw Creek and unnamed tributaries discharge into the Catawba River/
Lake Norman. See attached figure.
9. Identify any field measurements and observations of water quality that were made.
Provide the measurement and the units of measure in the appropriate space below:
Varies 1-4 ft
Width (ft.)
6 inches
Depth (average)
N/A
Velocity (specify units): N/A
N/A
Temperature (depth of water where the reading was taken): N/A
N/A
pH
N/A
Dissolved oxygen
N/A
Salinity
slightly
Turbidity (clear, slightly turbid, turbid, opaque) Secchi disk depth: N/A
Other (specify)
10. Describe observed color and area of coloration.
The majority of the water is clear. There are areas of the orange coloration.
11. Is aquatic vegetation present? ❑ Yes © No
If yes, please identify the type of vegetation present if known.
❑ Emergent ❑ Submergent ❑ Floating
12. Mark the open -water, non -flowing system on the site map attached to this checklist.
13. What observations, if any, were made at the water body regarding the presence and/or absence of
benthic macroinvertebrates, fish, birds, mammals, etc.?
Several minnows were observed. Benthic macroinvertebrates were present in a several channels and
crayfish mounds were observed in the floodplain. Birds and squirrels were observed during the site
visit. Raccoon and deer tracks were also observed during the site visit.
A-25

Flowing Aquatic Systems Questions
© On -Site ❑X Off -site
Unnamed tributaries (10) to the Catawba River/Lake Norman with intermittent flow.
Name or Designation: Stream identification and classification was conducted by AMEC in 2015.
1. Indicate the type of aquatic feature present:
❑ River
❑ Stream / Creek / Brook
Intermittent stream
❑ Artificially created (ditch, etc.)
❑ Channeling
❑ Other (specify):
2. For natural systems, are there any indicators of physical alteration (e.g., channeling, debris, etc.)?
❑X Yes ❑ No
If yes, please describe the indicators observed.
There are isolated locations indicating evidence of channelization. Rip rap has been placed in the
alone the stream banks and in the channel bottom in several areas.
3. Indicate the general composition of the bottom substrate.
❑ Bedrock ❑X Sand ❑ Concrete
❑ Boulder (>10 in.) © Silt ❑ Debris
❑ Cobble (2.5 in — 10 in.) © Clay ❑ Detritus
0 Gravel (0.1 — 2.5 in.) ® Muck (fine/black) ❑ Marl
❑ Other (please specify):
4. Describe the condition of the bank (e.g., height, slope, extent of vegetative cover):
Bank heights were variable and ranged from 2-10 ft, banks slopes ranged from 45-90%, stream banks
were generally well vegetated with woody and herbaceous species. Isolated areas of erosion.
5. Is the system influenced by tides? ❑ Yes ❑X No
What information was used to make this determination?
Inland water bodies not influenced by tides.
6. Is the flow intermittent? ❑X Yes ❑ No
If yes, please note the information used to make this determination.
The NC Division of Water Resource's (NCDWR) Stream Identification Methodology for Identification
of Intermittent and Perennial Streams and Their Origins (Version 4.11) was utilized by AMEC to
determine the flow characteristics of each identified perennial or intermittent stream. AMEC
classified these systems as intermittent. No flow was visible during the site visit.
A-26

Flowing System Questions (Continued)
7. Is there a discharge from the site to the water body? X❑ Yes ❑ No
If yes, describe the origin of each discharge and its migration path.
Surface water discharges may result from upland runoff during storm events.
8. Indicate the discharge point of the water body. Specify name of the discharge, if known.
See attached figure.
9. Identify any field measurements and observations of water quality that were made.
Provide the measurement and the units of measure in the appropriate space below:
Varies 1-4 Width (ft.)
N/A Depth (average)
N/A Velocity (specify units):
N/A Temperature (depth of water where the reading was taken):
N/A pH
N/A Dissolved oxygen
N/A Salinity
N/A Turbidity (clear, slightly turbid, turbid, opaque) Secchi disk depth:
Other (specify)
10. Describe observed color and area of coloration.
N/A
11. Is aquatic vegetation present? © Yes ❑ No
If yes, please identify the type of vegetation present if known.
© Emergent ❑ Submergent ❑ Floating
12. Mark the open -water, non -flowing system on the site map attached to this checklist.
13. What observations, if any, were made at the water body regarding the presence and/or absence of
benthic macroinvertebrates, fish, birds, mammals, etc.?
No aquatic fauna was observed. Birds and squirrels were observed during the site visit. Raccoon and
deer tracks were also observed durine the site visit.
A-27

III.0 Wetland Habitats
Are any wetland' areas such as marshes or swamps on or adjacent to the site?
X❑ Yes ❑ No
If yes, indicate the wetland area on the attached site map and answer the following questions regarding the
wetland area. If more than one wetland area is present on or adjacent to the site, make additional copies of
the following questions and fill out one for each individual wetland area. Distinguish between wetland
areas by using names or other designations (such as location). Clearly identify each area on the site map.
Also, obtain and attach a National Wetlands Inventory Map (or maps) to illustrate each wetland area.
Identify the sources of the observations and information (e.g., National Wetland Inventory, Federal or
State Agency, USGS topographic maps) used to make the determination whether or not wetland areas are
present.
Wetland areas were identified in the field by AMEC and HDR's Professional Wetland Scientist.
If no wetland areas are present, proceed to Section IILD: Sensitive Environments and Receptors.
' Wetlands are defined in 40 CFR §232.2 as " Areas inundated or saturated by surface or groundwater at a frequency and duration
sufficient to support, and that under normal circumstances does support, a prevalence of vegetation typically adapted for life in
saturated soil conditions." Examples of typical wetlands plants include: cattails, cordgrass, willows and cypress trees. National
wetland inventory maps may be available at http:\\nwi.fws.gov. Additional information on wetland delineation criteria is also
available from the Army Corps of Engineers.
A-28

Wetland Area Questions
❑ On -Site 0 Off -site
Name or Designation: Forested Wetlands
1. Indicate the approximate area of the wetland (acres or ft2) 9.17
2. Indicate the type(s) of vegetation present in the wetland.
❑ Submergent (i.e., underwater) vegetation
❑ Emergent (i.e., rooted in the water, but rising above it) vegetation
❑ Floating vegetation
❑X Scrub/shrub
❑X Wooded
❑ Other (Please describe):
3. Provide a general description of the vegetation present in and around the wetland (height, color, etc.).
Provide a photograph of the known or suspected wetlands, if available.
Woody vegetation consists of red maple, river birch, sweetgum, tulip poplar, and hackberry (Celtis
laevigata). Herbaceous and vine species consisted of sedges (Carex sp.), soft rush (Juncus effusus),
Nepal grass (Microstegium vimineum), netted chain fern (Woodwardia areolata), poison ivy, and
muscadine (Vitis rotundifolia). See attached photograph.
4
5
Estimate the vegetation density of the wooded area.
0 Dense (i.e., greater than 75% vegetation)
❑ Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
Is standing water present? 0 Yes ❑ No
If yes, is the water primarily: 0 Fresh ❑ Brackish
Indicate the approximate area of the standing water (ft.2): <1 acre
Indicate the approximate depth of the standing water, if known (ft. or in.)
2-4 inches
A-29

Wetland Area Questions (Continued)
6. Identify any field measurements and observations of water quality that were made.
Provide the measurement and the units of measure in the appropriate space below:
9.17 Area
6 inches Depth (average)
N/A Temperature (depth of water where the reading was taken) N/A
N/A pH
N/A Dissolved oxygen
N/A Salinity
slightly Turbidity (clear, slightly turbid, turbid, opaque) Secchi disk depth: N/A
Other (specify)
7. Describe observed color and area of coloration.
Standing water was slightly turbid with a brown coloration.
8. If known, indicate the source of the water in the wetland.
©
Stream / River / Creek / Lake / Pond
❑X
Flooding
❑
Groundwater
❑X
Surface Runoff
9. Is there a discharge from the site to the wetland? X❑ Yes ❑ No
If yes, please describe:
Surface water discharges may result from upland runoff during storm events.
A-30

Wetland Area Questions
❑X On -Site ❑X Off -site
Name or Designation: Shrub/Shrub - Emergent Wetlands
1. Indicate the approximate area of the wetland (acres or ft') 0.46 acres
2. Indicate the type(s) of vegetation present in the wetland.
❑ Submergent (i.e., underwater) vegetation
❑X Emergent (i.e., rooted in the water, but rising above it) vegetation
❑ Floating vegetation
❑X Scrub/shrub
❑ Wooded
❑ Other (Please describe):
3. Provide a general description of the vegetation present in and around the wetland (height, color, etc.).
Provide a photograph of the known or suspected wetlands, if available.
Emergent and shrub/shrub wetlands were located in maintained right-of-ways, along fringes of the ash
basin, and in open areas around the facility where woody vegetation is managed. Dominant woody
vegetation consists of sweetgum, black willow (Salix nigra), silky dogwood (Cornus amomum),
elderberry (Sambucus canadensis), and tag alder. Herbaceous and vine species consisted of common
reed (Phragmites australis), cattails (Typha sp.), sedges, soft rush, and woolgrass (Scirpus cyperinus).
See attached photograph.
4
5
Estimate the vegetation density of the wooded area.
❑X Dense (i.e., greater than 75% vegetation)
❑ Moderate (i.e., 25% to 75% vegetation)
❑ Sparse (i.e., less than 25% vegetation)
Is standing water present? ❑X Yes ❑ No
If yes, is the water primarily: ❑X Fresh ❑ Brackish
Indicate the approximate area of the standing water (ft.2):
Indicate the approximate depth of the standing water, if known (ft. or in.)
<0.1 acre
1-3 in.
A-31

Wetland Area Questions (Continued)
6. Identify any field measurements and observations of water quality that were made.
Provide the measurement and the units of measure in the appropriate space below:
0.46 acres Area
1-3 in. Depth (average)
N/A Temperature (depth of water where the reading was taken) N/A
N/A pH
N/A Dissolved oxygen
N/A Salinity
opaque Turbidity (clear, slightly turbid, turbid, opaque) Secchi disk depth: N/A
Other (specify)
7. Describe observed color and area of coloration.
The water was opaque with a green coloration.
8. If known, indicate the source of the water in the wetland.
❑X
Stream / River / Creek / Lake / Pond
Flooding
❑X
Groundwater
❑X
Surface Runoff
9. Is there a discharge from the site to the wetland? ❑X Yes ❑ No
If yes, please describe:
Surface water discharges may result from upland runoff during storm events.
A-32

10.
11
Wetland Area Questions (Continued)
Is there a discharge from the wetland? X❑ Yes ❑ No
If yes, to what water body is discharge released?
❑
Marine Name:
❑X
Surface stream / River Name:
F
Lake / Pond Name:
❑
Groundwater
❑
Not sure
Catawba River
Lake Norman
Does the area show evidence of flooding? Z Yes ❑ No
If yes, indicate which of the following are present (mark all that apply).
❑
Standing water
❑X
Water -saturated soils
❑X
Water marks
❑
Buttressing
❑X
Debris lines
❑
Mud cracks
❑ Other (Please describe):
12. If a soil sample was collected, describe the appearance of the soil in the wetland area. Circle or write
in the best response.
Color (blue/gray, brown, black, mottled) Hydric soil indicators were present.
Water content (dry, wet, saturated / unsaturated) Dry during the site visit.
13. Mark the observed wetland area(s) on the attached site map.
See attached figure.
A-33

III.D. Sensitive Environments and Receptors
Do any other potentially sensitive environmental areas2 exist adjacent to or within one-half mile of the
site? If yes, list these areas and provide the source(s) of information used to identify sensitive areas. Do
not answer "no " without confirmation from the U.S. Fish and Wildlife Service and other appropriate
agencies. See Table 1 for a list of contacts
NCNHP and NCWRC records presence of an important natural community (Dry Oak — Hickory
Forest— Piedmont Subtype) and natural area (Lake Norman Slopes and Shoreline) adjacent or within
'/2 mile of the site.
Are any areas on or near (i.e., within one-half mile) the site owned or used by local tribes? If yes,
describe.
No
Does the site serve or potentially serve as a habitat, foraging area or refuge by rare, threatened,
endangered, candidate and/or proposed species (plants or animals), or any otherwise protected species?
If yes, identify species. This information should be obtained from the U.S. Fish and Wildlife Service
and other appropriate agencies. See Table I for a list of contacts.
HDR obtained and reviewed an updated USFWS protected species list to determine whether rare,
threatened, endangered, candidate and/or proposed plant or animal species have the potential to occur
within the site. Forested areas with tree species that exhibit exfoliatine bark (i.e. hickories and white
oaks) may be potential roosting trees for the federally threatened northern long-eared bat (Myotis
septentrionalis). North -facing slopes along the existing bluffs, ravines, and boggy areas adjacent to
stream heads are potential habitat for dwarf -flowered heartleaf (Hexastylis naniflora).The existing
power line clearings and woodland edges and openings are potential habitat for federally endangered
Schweinitz's sunflower (Helianthus schweinitzii). Large pines along Lake Norman serve as potential
nest trees for the bald eagle (Haliaeetus leucocephalus). Bald eagles nest and forage in the area. There
is a known active bald eagle nest between the ash basin and Lake Norman.
Is the site potentially used as a breeding, roosting or feeding area by migratory bird species? If yes,
identify which species.
There is an existing colonial wading bird colonies [great blue heron (Ardea herodias)] located on site.
Migratory birds listed on the U.S. Fish and Wildlife's Information for Planning and
Conservation (IPac) website that may use habitats onsite include American bittern (Botaurus
lentiginosus), bald eagle, blue -winged warbler (Vermivora pinus), brown -headed nuthatch (Sitta
pusilla), Chuck-will's-widow (Caprimulgus carolinensis), fox sparrow (Passerella iliaca), Kentucky
Warbler (Oporornis formosus), least bittern (Ixobrychus exilis), loggerhead shrike (Lanius
ludovicianus), prairie warbler (Dendroica discolor), Prothonotary warbler (Protonotaria citrea),
red-headed woodpecker (Melanerpes erythrocephalus), rusty blackbird (Euphagus carolinus), wood
thrush (Hylocichla mustelina), and worm eating warbler (Helmitheros vermivorum).
2 Areas that provide unique and often protected habitat for wildlife species. These areas are typically used during critical life
stages such as breeding, hatching, rearing of young and overwintering. Refer to Table 2 at the end of this document for
examples of sensitive environments.
A-34

Sensitive Environments and Receptors Questions (Continued)
the site used by any ecologically3, recreationally or commercially important species? If yes, explain.
The NCWRC noted that there is recreational fishing in Lake Norman. Recreational species
include: striped bass (Morone saxatilis), largemouth bass (Micropterus salmoides), spotted bass
(Micropterus punctulatus), catfish, crappie, sunfish and white perch (Morone americana).
3 Ecologically important species include populations of species which provide a critical (i.e., not replaceable) food resource for
higher organisms. These species' functions would not be replaced by more tolerant species or perform a critical ecological
function (such as organic matter decomposition) and will not be replaced by other species. Ecologically important species include
pest and opportunistic species that populate an area if they serve as a food source for other species, but do not include
domesticated animals (e.g., pets and livestock) or plants/animals whose existence is maintained by continuous human
interventions (e.g., fish hatcheries, agricultural crops, etc.).
A-35

IV. EXPOSURE PATHWAY EVALUATION
Do existing data provide sufficient information on the nature, rate and extent of contamination at the site?
❑ Yes
❑X No
❑ Uncertain
Please provide an explanation for your answer.
Assessment of nature, rate, and extent of contamination is ongoing as part of the CSA.
2. Do existing data provide sufficient information on the nature, rate and extent of contamination in offsite
affected areas?
❑ Yes
0 No
❑ Uncertain
❑ No offsite contamination
Please provide an explanation for your answer:
Assessment of nature, rate, and extent of contamination is ongoing as part of the CSA.
3. Do existing data address potential migration pathways of contaminants at the site?
❑ Yes
❑%� No
❑ Uncertain
Please provide an explanation for your answer:
Assessment of nature, rate, and extent of contamination is ongoing as part of the CSA.
A-36

Do existing data address potential migration pathways of contaminants in offsite affected areas?
❑ Yes
❑X No
❑ Uncertain
❑ No offsite contamination
Please provide an explanation for your answer:
Assessment of nature, rate, and extent of contamination is ongoing as part of the CSA.
Are there visible indications of stressed habitats or receptors on or near (i.e., within one-half mile) the site that
may be the result of a chemical release? If yes, explain. Attach photographs if available
No stressed receptors were visible during the site visit.
Is the location of the contamination such that receptors might be reasonably expected to come into contact
with it? For soil, this means contamination in the soil 0 to 1 foot below ground surface (bgs). If yes, explain.
Yes, the contamination from coal ash is at the ground surface.
Are receptors located in or using habitats where chemicals exist in air, soil, sediment or surface water? If yes,
explain.
An exposure assessment will be completed as part of baseline risk assessment, if required.
A-37

8. Could chemicals reach receptors via groundwater? Can chemicals leach or dissolve to groundwater? Are
chemicals mobile in groundwater? Does groundwater discharge into receptor habitats? If yes, explain.
An exposure assessment will be completed as part of baseline risk assessment, if required.
9. Could chemicals reach receptors through runoff or erosion? Answer the following questions.
What is the approximate distance from the contaminated area to the nearest watercourse?
Distance assumes the ash basins to be the "contaminated area", pending completion of the CSA
delineation.
❑ 0 feet (i.e., contamination has reached a watercourse)
0 1-10 feet
❑ 11-20 feet
❑ 21-50 feet
❑ 51-100 feet
❑ 101-200 feet
❑ >200 feet
❑ >500 feet
❑ >1000 feet
What is the slope of the ground in the contaminated area? Slope is variable.
❑ 0-10%
❑ 10-30%
❑ >30%
What is the approximate amount of ground and canopy vegetative cover in the contaminated area?
Z <25%
❑ 25-75%
❑ >75%
Is there visible evidence of erosion (e.g., a rill or gully) in or near the contaminated area?
0 Yes
❑ No
❑ Do not know
Do any structures, pavement or natural drainage features direct run-on flow (i.e., surface flows originating
upstream or uphill from the area of concern) into the contaminated area?
❑ Yes
❑ No
0 Do not know
A-38

10. Could chemicals reach receptors through the dispersion of contaminants in air (e.g., volatilization, vapors,
fugitive dust)? If yes, explain
Coal ash will be transported offsite for disposal. Contaminated dust particles may become airborne.
11. Could chemicals reach receptors through migration of non -aqueous phase liquids (NAPLs)? Is a NAPL
present at the site that might be migrating towards receptors or habitats? Could NAPL discharge contact
receptors or their habitat?
No.
A-39

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Photograph 5 — Scrub Shrub Wetland Habitat
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