HomeMy WebLinkAbout20201860 Ver 1_2020.4.2 Kerwin Circle Station NRA_20210107Dewberry -
Natural Resources Assessment
Kerwin Circle Station
Forsyth County, North Carolina
Duke Energy Carolinas
April 2, 2020
Prepared For:
DUDE
ENENN%7 To
Duke Energy Carolinas
Prepared By:
Dewberry Engineers Inc.
551 Piney Forest Road
Danville, Virginia 24540
434-797-4497
Duke Energy, Carolinas
Natural Resource Assessment: Kerwin Circle Station
TABLE OF CONTENTS
PAG E
1. PROJECT DESCRIPTION AND UNDERSTANDING....................................................................... 1
2. METHODOLOGY.......................................................................................................................1
3. SITE OVERVIEW........................................................................................................................ 2
4. GENERAL SOIL ASSESSMENT.................................................................................................... 2
5. GENERAL FLOODPLAIN ASSESSMENT....................................................................................... 2
6. DELINEATION OF WETLAND AND WATERS OF THE US.............................................................. 2
6.1 Wetlands............................................................................................................................3
6.2 Stream and Surface Waters................................................................................................ 3
6.3 Regulatory Considerations................................................................................................. 4
7. THREATENED AND ENDANGERED SPECIES............................................................................... 5
8. HISTORIC RESOURCES..............................................................................................................8
9. SUMMARY..........................................................................................................................8
10. REFERENCES..........................................................................................................................9
LIST OF TABLES
Table 1 Wetland Summary Table
Table 2 Stream Channel Summary Table
Table 3 Potential Threatened and Endangered Species within Project Route
LIST OF FIGURES
Figure 1 Aerial Site Map
Figure 2 WebSoil Survey for Project Area
Figure 3 USGS Site Location Map
Figure 4 Wetland and Stream Exhibit
LIST OF APPENDICES
Appendix A Federal Emergency Management Agency Flood Hazard Maps
Appendix B Wetland Data Sheets
Appendix C North Carolina Wetland Assessment Method (NC WAM) Data Forms
Appendix D Stream Identification Forms
Appendix E North Carolina Stream Assessment Method (NC SAM) Data Forms
Appendix F North Carolina Preservation and History Registry Map
April 2, 2020
P:\50126132\Adm\Reports\NRA\TOC.doc Dewberry
Duke Energy, Carolinas
Natural Resource Assessment: Kerwin Circle Station
1. PROJECT DESCRIPTION AND UNDERSTANDING
Dewberry Engineers Inc. (Dewberry) was requested by Duke Energy, Carolinas (DEC) to prepare a
Natural Resource Assessment (NRA) for the proposed Kerwin Circle Station located in Forsyth County,
North Carolina. The project includes the construction of a substation for DEC. The project will consist
of tree clearing and grading in the area of the substation.
The project area is located in the northwestern portion of Kernersville. The project boundary is east
of Talley's Crossing in Kernersville and includes 3.25 acres (Figure 1). The substation will be located
on the northern section of the parcel.
The project boundary is illustrated within this report on topographic maps and aerial photography
(Figures 1 and 3).
As part of the NRA, Dewberry provided the following services:
• General Soil assessment
• General Floodplain assessment
• Delineation of wetlands and waters of the U.S. (WOTUS)
• Preliminary endangered, threatened and species of special concern assessment
• Preliminary historic and cultural resources assessment
• GPS location of identified features
2. METHODOLOGY
Prior to the site visit, the following resources were reviewed:
• Forsyth County, NC GIS
• U.S. Fish and Wildlife Service Endangered and Threatened Species and Information for
Planning and Conservation (IPaC) Trust Resource Report
• Natural Resources Conservation Service (NRCS) Web Soil Map
• USGS Topographic Map, Belews Creek, NC 2019
• U.S. Fish and Wildlife National Wetland Inventory (NWI)
• North Carolina Department of Natural Heritage Program
• Federal Emergency Management Agency (FEMA) Flood Hazard Maps
April 2, 2020 1
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Duke Energy, Carolinas Natural Resource Assessment: Kerwin Circle Station
During the site visit, field work was conducted in accordance with:
• NC Department of Transportation (DOT) Guidance for Preparing Natural Resource Technical
Reports
• North Carolina Wetland Assessment Method (NCWAM)
• North Carolina Stream Assessment Method (NCSAM)
• NC Division of Water Quality (NCDWQ) Methodology for Identification of Intermittent and
Perennial Streams and Their Origins
• Corps of Engineers Wetlands Delineation Manual
• Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Eastern
Mountains and Piedmont Region (Version 2.0)
3. SITE OVERVIEW
The project boundary is located in the piedmont of North Carolina. The topography of the substation
parcel is characterized as sloping north towards a mapped pond. The project is in close proximity to
cities and major highways.
The project boundary is located in the USGS hydrologic unit 03010103 in the Roanoke River Basin
(USGS 2017).
There are no Outstanding Water Resources, or designated Trout Waters (Tr) along the project
boundary.
4. GENERAL SOIL ASSESSMENT
The USDA web soil survey (2020) (Figure 2) identifies the following soils within the project boundary:
• BtE
Bannertown-Toast complex, 15-25% slopes
• CID
Clifford sandy loam, 10-15% slopes
• FaF
Fairview fine sandy loam, 15-45% slopes
• NaB
Nathalie sandy loam, 2-6% slopes
• NaC
Nathalie sandy loam, 6-10% slopes
• TcD
Toast sandy loam, 10-15% slopes
The USDA web soil survey identifies no hydric soils within the project boundary.
5. GENERAL FLOODPLAIN ASSESSMENT
The project boundary is located within an area of minimal flood (Zone X). Appendix A illustrates the
approximate project boundary on the FEMA National Flood Hazard maps.
6. DELINEATION OF WETLANDS AND WATERS OF THE US
The Clean Water Act (CWA) is an amendment to the Federal Water Pollution Control Act of 1972,
which regulates the discharges of pollutants to waters of the United States. Section 404 of the CWA
April 2, 2020 2
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Duke Energy, Carolinas Natural Resource Assessment: Kerwin Circle Station
establishes a program to regulate the discharge of dredged and fill material into waters of the United
States, including wetlands. The EPA administratively oversees the CWA and Section 404 of the CWA
(EPA 2017). The US Army Corps of Engineers (USACE) enforces the CWA Section 404 regulatory
program through implementation and permitting.
To determine the limits and boundaries of waters of the U.S. (WOTUS) and wetlands, a field survey is
conducted by walking the extent of the project boundary and identifying the separation boundary
between USACE regulated areas (i.e. jurisdictional) from non -regulated areas (non -jurisdictional).
Regulated areas may include wetlands, rivers, stream channels, ponds, lakes, seeps and non -tidal
waters. Determining the jurisdictional boundaries of resources is a crucial component of planning a
project and is required when submitting a permit application to the USACE (USACE 2018).
An on -site wetland investigation was conducted within the project boundary to identify the
approximate limits of jurisdictional wetlands and WOTUS. The project boundary was identified by
Duke Energy, Carolinas as depicted on Sheet 1 (Figure 3). Field indicators of hydrophytic vegetation,
hydric soils, and wetland hydrology were observed and recorded to generally determine the
approximate wetland boundaries. Boundaries of jurisdictional wetlands and the ordinary high
watermark (OHM) of stream channels were flagged with survey ribbon and located using a handheld
Trimble GPS unit.
6.1 Wetlands
One (1) wetland was delineated within the project boundary. The wetland types were classified by
the Cowardian Classification typical of USACE determinations and by the North Carolina Wetland
Assessment Method (NCWAM).
Figure 3 illustrates the approximate location and extent of the delineated wetlands. These locations
are based upon mapping grade GPS and should be considered approximate. Wetlands were flagged
and numbered in the field using pink and black striped flagging. Wetland data sheets are provided as
Appendix B. NCWAM forms are provided as Appendix C.
Table 1 provides a summary of the wetland data collected within the project boundary.
Table 1. Wetland Summary Table for Kerwin Circle Station Proiect
Wetland Field
Cowardian
NCWAM
Data
Approximate
NCWAM Classification
ID (Zone)
Classification
Rating
Point
Size (acres)
WA
PFO
Headwater Forest
High
WA19
0.143
WA
PFO
Riverine Swamp Forest
High
1
0.586
PFO — Palustrine Forested
6.2 Stream and Surface Waters
Four (4) stream channels were delineated within the project area. Stream classifications are
supported by the North Carolina Division of Water Resources (NCDWR) Stream Identification Forms
(Version 4.11). Stream order was assessed using the Stahler Stream Order Method. Where
April 2, 2020 3
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Duke Energy, Carolinas Natural Resource Assessment: Kerwin Circle Station
appropriate, streams were evaluated using North Carolina Stream Assessment Method (NCSAM).
Stream channels were flagged at the OHM.
Figure 3 illustrates the approximate location and extent of the delineated stream channel. These
illustrations are approximate and do not equate a conventional ground survey. Stream channels were
flagged and numbered in the field using red and white striped flagging. NCDWR stream identification
forms are provided as Appendix D. and NCSAM forms are provided as Appendix E.
Table 2 provides a summary of the stream channel data collected within the project boundary.
Table 2. Stream Channel Summary Table for Kerwin Circle Station Proiect
Approximate
Stream Field ID
Stream
Approximate
Length
NCDWR Stream Score
(Zone)
Type
Width (feet)
(linear feet)
SA
Perennial
602
8
35
SB
Intermittent
97
6
23
SC
Perennial
341
5
32.5
SD
Intermittent
5
2.5
28.5
Figure 3 illustrates the approximate location and extent of the delineated open waters. These
illustrations are approximate and do not equate a conventional ground survey.
Table 3 provides a summary of the open water data collected within the project boundary.
Table 3. Open Water Summary Table for Kerwin Circle Station Project
Approximate Area
Open Water No.
Resource ID
(acre)
Open Water 1
PA
0.44
6.3 Regulatory Considerations
The delineation conducted within the project area has not been confirmed by the USACE. In the event
the client wishes to pursue permitting, jurisdictional confirmation may be necessary.
Depending upon the permitting requirements related to the type and amount of potential impacts
to wetlands and WOTUS, the USACE and North Carolina Department of Environmental Quality
(NCDEQ) should be notified of the project scope and the required documentation submitted.
Clean Water Act
Any alteration to WOTUS or wetlands, such as dredging or filling, require authorization by the USACE.
The Clean Water Act (CWA) Section 404 permits are issued by the USACE Raleigh Field Office for
impacts to WOTUS or wetlands. To be considered valid, a CWA 401 Water Quality Certification (WQC)
must accompany the 404 permit. The 401 Certification is issued by NCDEQ to manage specific
activities affecting state WOTUS and wetlands.
April 2, 2020 4
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Duke Energy, Carolinas Natural Resource Assessment: Kerwin Circle Station
If the project anticipates impacts to wetlands or WOTUS, coordination with the USACE and NCDEQ is
recommended to finalize a jurisdictional determination of the identified WOTUS and wetlands within
the project boundary. Compensatory mitigation may be required if the project permanently impacts
wetlands and/or streams. The USACE requires mitigation for unavoidable impacts greater than 150
linear feet of stream and/or greater than 0.10 acre of wetlands.
Section 10 of the Rivers and Harbors Act
No Section 10 rivers were identified in the project area.
Section 10 of the Rivers and Harbors Act requires USACE authorization in order to construct or
otherwise alter navigable waters of the U.S. Alteration of waters may include, but is not limited to:
placement of structure(s) in or over waters, excavation, dredging, fill, and otherwise obstructing or
altering waters.
Confirmation by USACE is recommended before commencing any alterations to the delineated
WOTUS.
7. THREATENED AND ENDANGERED SPECIES
The Endangered Species Act protects species that are federally listed as threatened or endangered.
Online and field surveys are conducted to determine the presence of suitable habitat for threatened
or endangered species. If suitable habitat is found, a field survey may be needed to confirm or refute
the presence of, or the potential presence of the identified threatened or endangered species.
Prior to the site visit, an online search through the U.S. Fish and Wildlife Service (USFWS) Information
for Planning and Consultation (IPaC) service was conducted to determine the potential presence of
threatened or endangered species. The online search determined the possible presence of
threatened or endangered species. Table 4 summarizes the threatened or endangered species
identified to occur within the project area.
Table 4. Potential Threatened and Endangered Species within Proiect Boundary
Species
Federal
Habitat
Species
Biological
Common Name
Scientific Name
s
Statu)
Status)
Present
Survey
Window
Conclusion
Small-anthered bittercress
Cardamine micranthera
E
Yes
Apr- May
May Affect
Northern long-eared bat
Myotis septentrionalis
T
Yes
Jan -Fed
May Affect
May- Aug
Bog turtle
Glyptemys muhlenbergii
T(S/A)
Yes
Apr -Oct
No Effect
'T—Threatened
'E — Endangered
'T(S/A) —Threatened due to similarity of appearance
April 2, 2020 5
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Duke Energy, Carolinas
Natural Resource Assessment: Kerwin Circle Station
The following sections discuss the threatened or endangered species, their habitat and the biological
conclusion.
Small-anthered bittercress
Small-anthered bittercress is a biennial or perennial herb that is endemic to the Dan River
Drainage of the Roanoke River Basin. Their habitat consists of moist, wet woods along small
to intermittent sized streams, stream banks and seepages above stream banks, wet rock
crevices, and sand and gravel bars of small streams. The species prefers full sun or partial
shade from trees and shrubs. Soil type preferences include, Rion, Pacolet, and Wateree. The
species can occur with poor viability in disturbed areas subject to livestock trampling,
silviculture, or encroachment or exotic, invasive species such as Japanese honeysuckle
(NCDOT 2010).
Habitat Present: Yes
An online search of the USFWS identifies the Small-anthered bittercress as occurring in
Forsyth County. The soil preference of the plant is listed to include Pacolet, which is located
within the project boundary. The habitat preference for the plant is along intermittent
streams in wooded areas and seepages above streambanks (NCDOT 2010). These habitats are
found within the project boundary.
Biological Conclusion: May Affect
The optimal survey window for the Small-anthered bittercress is April through May. The NRA
site visit was conducted in March 2020. A surveyfor the Small-anthered bittercress should be
conducted during the next optimal survey window.
Northern Lone -Eared Bat
Northern long-eared bat (NLEB) is a medium-sized bat with a body length of 3 to 3.7 inches.
Their summer habitat consists of roosting in cavities or crevices of both live and dead trees
(snags). They can also be found roosting in caves and mines. Their wintering habitat consists
of hibernating in caves and mines. They prefer these habitats because it provides a constant
temperature, high humidity, and no air currents. The northern long-eared bats feeding
habitat is primarily understory forests to catch moths, flies, and beetles. The range for the
northern long-eared bat includes much of eastern and north central United States (USFWS,
2015).
Habitat Present: Yes
An online search of the USFWS identifies the NLEB as occurring in Forsyth County. The habitat
preference is listed to include living and dead trees for summer habitat and understory trees
for feeding habitat. These habitats are found within the project area.
An online search of the USGS Mineral Resources Online Spatial Data System was utilized to
search for mines that could be possible wintering habitat for the NLEB. The online search
revealed no mineral resources within three (3) miles of the project boundary.
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Duke Energy, Carolinas
Natural Resource Assessment: Kerwin Circle Station
Biological Conclusion: May Affect
Operations will include tree clearing. These activities may affect bat populations.
Forsyth County is identified by the USFWS to be within the White Nose Syndrome (WNS)
range for the NLEB. For areas of the country impacted by the WNS (Le., areas inside of the
WNS zone), incidental take, [such as accidental death caused by tree clearing][ofthe NLEB] is
prohibited under the following circumstances:
• If it occurs within the hibernaculum
• If it results from tree removal activities
o The activity occurs within 0.25 miles (0.4 km) of a known hibernaculum; or,
o The activity cuts or destroys a known, occupied maternity roost tree or other
trees within a 150 foot radius of the maternity roost tree during the pup
season from June 1 through July 31' (USFWS, 2017)
There are no known or documented hibernacula or maternity trees listed by the NC Natural
Heritage Program along the project boundary. However, as a precautionary measure,
consider limiting mature tree clearing to outside of the pup season (June 1 through July 31).
If in the event, DEC decides to conduct a NLEB survey, the USFWS states that the biological
survey guidance for the Indiana bat can be used to survey for the NLEB. The optimal survey
window for the bats is May through August (summer) and January through February (winter).
Bog Turtle
Bog turtle habitat consists of open, groundwater fed wetlands along streams or seeps on
hillsides. The habitats are designated as mountain bogs by the North Carolina Heritage
Program, but they can also be wet pastures and old drainage areas. The habitat is found
between 700 and 4,500 feet above sea level in the Western Piedmont of North Carolina. The
soil types are poorly drained silty foams, Those soil types may include, Arkaqua, Chewacla,
Dellwood, Codorus complex, Hatboro, Nikwasi, Potomac-lotla complex, Reddies, Rosman
Tate-Cullowhee complex, Toxaway, Tuckasegee-Cullasasja complex, Tusquitee, Watauga, and
Wehadkee (USFWS, 2008)
Habitat Present: No
An online search of the USFWS identifies the Bog turtle as occurring in Forsyth County. The
habitat preference is wet mountain bogs and areas with soil types that are not found within
the project area. These habitats are found not within the project area.
Biological Conclusion: No Effect
The Bog Turtle is listed as threatened due to similarity of appearance and does not require
Section 7 consultation with the USFWS. No bog turtles were observed during field activities,
however no specific surveys were performed due to the T(S/A) status of the species. A review
April 2, 2020 7
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Duke Energy, Carolinas Natural Resource Assessment: Kerwin Circle Station
of the NHP records on May 31, 2019 indicates no known occurrences within 1.0 mile of the
study area.
Bald Eagle
The bald eagle is protected under the Bald and Golden Eagle Protection Act, and enforced by the
USFWS. Habitat for the bald eagle primarily consists of mature forests in proximity to large bodies of
open water for foraging. Large dominant trees are utilized for nesting sites, typically within 1.0 mile
of open water.
A desktop-GIS assessment of the project study area, and the area within a 1.0 mile radius of the
project limits, was performed by Dewberry on February 12, 2020 using 2019 color aerials. Water
bodies large enough or sufficiently open to be considered potential feeding sources were identified
within 1.0 mile radius of the project area, including Kernersville Lake. A ground survey of the project
study area and the area within 660 feet of the project limits was conducted. No bald eagles were
observed along the project boundary during the site visits. Additionally, a review of the NHP database
on March 3, 2020 revealed no known occurrences of this species within 1.0 mile of the project area.
Due to the lack of known occurrences, and no observations of bald eagles within the 660 foot
perimeter of the project area, it has been determined that this project will not affect this species.
8. HISTORIC RESOURCES
An online search of the North Carolina State Historical Preservation Office (NCSHPO) revealed no
historic listings adjacent to the project boundary. The North Carolina State Preservation Office
registry map is provided in Appendix F.
9. SUMMARY
Dewberry delineated one (1) wetland and four (4) stream channels within the project boundary. Any
unavoidable impacts to these resources should be discussed with USACE and NCDEQ prior to
construction.
Three (3) threatened or endangered species were listed to occur within the project boundary. Two
(2) species were determined to have a biologic conclusion of "may affect" by the proposed project
and one (1) species was determined as "no effect" due to lack of suitable habitat within the project
area. A plant survey for the Small-anthered bittercress should be conducted during the next optimal
survey window during April -May.
No eligible historic resources were identified within the project boundary.
April 2, 2020 8
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Duke Energy, Carolinas
Natural Resource Assessment: Kerwin Circle Station
10. REFERENCES
EPA. 2017. Laws, Regulations and Treaties: Laws. Environmental Protection Agency
http://water.epa.gov/lawsregs/lawsguidance/cwa/wetlands/laws_index.cfm (Accessed 3/3/2020)
FEMA. 2020. Federal Emergency Management Agency Flood Insurance Rate Map, Map Number
3710687700J Forsyth County, North Carolina. Effective January 2, 2009.
NCDOT. 2011. T&E Plant Habitat Descriptions. North Carolina Department of Transportation.
https://connect.ncdot.gov/ (Accessed 3/3/2020).
NCDOT. 2015. TE Animal Habitat Description. North Carolina Department of Transportation.
https://connect.ncdot.gov/ (Accessed 3/3/2020).
North Carolina State Historic Preservation Office. 2020. NC GIS Web Service.
http://gis.ncdcr.gov/hpoweb/ (Accessed 3/2/2020)
USACE. 2020. Clean Water Act — Waters of the US Rule Published. United States Army Corps of
Engineers Wilmington District. https://www.saw.usace.army.mil/Missions/Regulatory-Permit-Program/
(Accessed 3/3/2020)
USFWS. 2015. Bog turtle. U.S. Fish and Wildlife Service. Asheville Ecological Services Field Office.
https://www.fws.gov/asheville/htmis/listed_species/bog_turtle.html (Accessed 3/3/2020).
USFWS. 2015. Northern Long-eared Bat. U.S. Fish and Wildlife Service Midwest Region.
https://www.fws.gov/midwest/endangered/mammals/nleb/nlebfactsheet.html (Accessed 3/3/2020).
USFWS. 2019. Small-anthered bittercress. U.S. Fish and Wildlife Service.
https://www.fws.gov/southeast/wildlife/plants/small-anthered-bittercress/ (Accessed 3/3/2020)
USGS. 2019. Belews Creek, NC Quadrangle, United States Geological Survey 7.5 minute series topographic
map.
USGS. 2020. Science in Your Watershed. United States Geological Survey.
https://water.usgs.gov/wsc/cat/03010103.html (Accessed 2/28/2020)
April 2, 2020 9
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FIGURE 1
Aerial Site Map
1
`y Rd
o
m
:Goggle !Eap'
D a�
f
Ram
W eather-Ridge
1 � i4yyy
i
Gtitter-M r.
6 o� r
IP
y � • . '� ,,�, -.rya►�� -
"-� -
--I -Dillon-St` A ' --x EasrvIew-S
Steve=St
- L-N,
5 �� , 200ft
FIGURE 2
WebSoil Survey
579320
36o 8' 25" N
I
36o 8' 5" N
Soil Map —Forsyth County, North Carolina
(Kerwin Circle Substation)
579390 579460 579530 579600
579320 579390 579460 579530 579600
Map Scale: 1:2,960 if printed on A portrait (8.5" x 11") sheet.
$ Meters N
0 40 80 160 240
Feet
0 100 200 400 600
Map projection: Web Mercator Conermordinates: WGS84 Edge tics: lfrM Zone 17N WGS84
USDA Natural Resources Web Soil Survey
Conservation Service National Cooperative Soil Survey
579670
579670
a
579740
36o 8' 25" N
I
1
36o 8' 5" N
579740
a
3/31/2020
Pagel of 3
MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special
Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
Gravelly Spot
0
Landfill
A.
Lava Flow
Marsh or swamp
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
o
Sodic Spot
Soil Map —Forsyth County, North Carolina
(Kerwin Circle Substation)
MAP INFORMATION
Spoil Area
The soil surveys that comprise your AOI were mapped at
1:15,800.
Stony Spot
th
Very Stony Spot
Warning: Soil Map may not be valid at this scale.
Wet Spot
Enlargement of maps beyond the scale of mapping can cause
misunderstanding of the detail of mapping and accuracy of soil
4�
Other
line placement. The maps do not show the small areas of
Special Line Features
contrasting soils that could have been shown at a more detailed
scale.
Water Features
Streams and Canals
Please rely on the bar scale on each map sheet for map
measurements.
Transportation
—
Rails
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
. 0
Interstate Highways
Coordinate System: Web Mercator (EPSG:3857)
US Routes
Maps from the Web Soil Survey are based on the Web Mercator
Major Roads
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Local Roads
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
Background
Aerial Photography
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Forsyth County, North Carolina
Survey Area Data: Version 19, Sep 16, 2019
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Jun 14, 2014—Jun
26, 2014
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey 3/31/2020
Conservation Service National Cooperative Soil Survey Page 2 of 3
Soil Map —Forsyth County, North Carolina
Kerwin Circle Substation
Map Unit Legend
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
BtE
Bannertown-Toast complex, 15
to 25 percent slopes
5.1
34.6%
CID
Clifford sandy loam, 10 to 15
percent slopes
0.1
0.7%
FaF
Fairview fine sandy loam, 15 to
45 percent slopes
3.4
22.7%
NaB
Nathalie sandy loam, 2 to 6
percent slopes
0.3
2.4%
NaC
Nathalie sandy loam, 6 to 10
percent slopes
3.0
20.0%
TcD
Toast sandy loam, 10 to 15
percent slopes
2.9
19.7%
Totals for Area of Interest
14.8
100.0%
USDA Natural Resources Web Soil Survey 3/31/2020
Conservation Service National Cooperative Soil Survey Page 3 of 3
FIGURE 3
USGS Topographic Map
11
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Figure 3: USGS Topographic Site Map
Kerwin Circle Substation
USGS Quadrangle: Belews Creek, NC 2019
C.� I
FIGURE 4
Wetland and Stream Exhibit
.fin.
Legend
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lit
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200 100 0
1 inch = 200 feet
200 Feet
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Dewberr y®
■
DewbeEngineers Inc.
9300 Harrrry is Comers Parkway
Suite 220
Charlotte, INC 28269-2618
704-509-9918
www.dewberry.com
NCBELS #F-0929
4' DUKE Kerwin
Circle
ENERGY
Sheet 1 of 1
APPENDIX A
FEDERAL EMERGENCY MANAGEMENT AGENCY
(FEMA) FLOOD MAPS
National Flood Hazard Layer FIRMette OFEMA
36°8'30.32"N
0 250 500 1,000 1,500 2,000
Legend
SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT
Without Base Flood Elevation (BFE)
Zone A. V. A99
SPECIAL FLOOD
With BFE or Depth Zone AE, AD, AH, VE, AR
HAZARD AREAS
Regulatory Floodway
0.2%Annual Chance Flood Hazard, Areas
of 1%arm ual chance flood with average
depth less than one foot or with drainage
areas of less than one square mile zone x
Future Conditions 1%Annual
Chance Flood Hazard zone x
Area with Reduced Flood Risk due to
OTHER AREAS OF IWA� Levee. See Notes. zone x
FLOOD HAZARD FO' 0 Area with Flood Risk due to Levee zone D
NO SCREEN Area of Minimal Flood Hazard zone x
Q Effective LOMRs
OTHER AREAS Area of Undetermined Flood Hazard zone D
GENERAL - — - - Channel, Culvert, or Storm Sewer
STRUCTURES I I I I I I I Levee, Dike, or Floodwall
Cross Sections with 1% Annual Chance
17•5 Water Surface Elevation
o- - - Coastal Transect
—513 — Base Flood Elevation Line (BFE)
Limit of Study
Jurisdiction Boundary
— --- Coastal Transect Baseline
OTHER _ Profile Baseline
FEATURES Hydrographic Feature
Digital Data Available N
No Digital Data Available
MAP PANELS Unmapped
9 The pin displayed on the map is an approximate
point selected by the user and does not represent
an authoritative property location.
This map complies with FEMA's standards for the use of
digital flood maps if it is not void as described below.
The basemap shown complies with FEMA's basemap
accuracy standards
The flood hazard information is derived directly from the
authoritative NFHL web services provided by FEMA. This map
was exported on 2/14/2020 at 3:51:37 PM and does not
reflect changes or amendments subsequent to this date and
00 time. The NFHL and effective information may change or
9 become superseded by new data over time.
of
o) This map image is void if the one or more of the following map
N_
elements do not appear: basemap imagery, flood zone labels,
legend, scale bar, map creation date, community identifiers,
FIRM panel number, and FIRM effective date. Map images for
unmapped and unmodernized areas cannot be used for
regulatory purposes.
Wetland Determination Data Sheets
U.S. Army Corps of Engineers OMB Control #: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Eastern Mountains and Piedmont Region Requirement Control Symbol EXEMPT:
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Kerwin Circle Substation City/County: Forsyth Sampling Date: 2/24/2020
Applicant/Owner: Duke Energy Carolinas State: NC Sampling Point: DP1
Investigator(s): KJS - Dewberry Section, Township, Range:
Landform (hillside, terrace, etc.): Floodplain Local relief (concave, convex, none): Concave Slope (%): <5
Subregion (LRR or MLRA): LRR P, MLRA 136 Lat: 36.138649 Long:-80.115911 Datum: WGS 1984
Soil Map Unit Name: Bannertown-Toast complex, 15-25% slopes NWI classification: PFO
Are climatic / hydrologic conditions on the site typical for this time of year? Yes X No (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS —Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes X No within a Wetland? Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
Wetland WA
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required: check all that apply)
—Surface Soil Cracks (136)
X Surface Water (Al) _True
Aquatic Plants (1314)
_Sparsely Vegetated Concave Surface (138)
X High Water Table (A2) _Hydrogen
Sulfide Odor (C1)
_Drainage Patterns (1310)
X Saturation (A3) _Oxidized
Rhizospheres on Living Roots (C3)
_Moss Trim Lines (1316)
—Water Marks (131) —Presence
of Reduced Iron (C4)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132) X
Recent Iron Reduction in Tilled Soils (C6)
_Crayfish Burrows (C8)
X Drift Deposits (133) _Thin
Muck Surface (C7)
_Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (134) _Other
(Explain in Remarks)
_Stunted or Stressed Plants (D1)
_Iron Deposits (135)
_Geomorphic Position (D2)
—Inundation Visible on Aerial Imagery (137)
_Shallow Aquitard (D3)
X Water -Stained Leaves (139)
_ Microtopographic Relief (D4)
X Aquatic Fauna (1313)
FAC-Neutral Test (D5)
Field Observations:
Surface Water Present? Yes X No
Depth (inches): 2
Water Table Present? Yes X No
Depth (inches): 6
Saturation Present? Yes X No
Depth (inches): 0
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Frog eggs present
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont —Version 2.0
VEGETATION (Five Strata) - Use scientific names of plants.
Sampling Point: DP1
Absolute
Dominant
Indicator
Tree Stratum (Plot size: 30' )
% Cover
Species?
Status
1. Quercus alba
30
Yes
FACU
2. Liquidambar styraciflua
30
Yes
FAC
3. Acer rubrum
25
Yes
FAC
4.
5.
6.
85 =Total Cover
50% of total cover:
43 20% of total cover:
17
Sapling Stratum (Plot size: 15' )
1. Acer rubrum
10 Yes
FAC
2.
3.
4.
5.
6.
10 =Total Cover
50% of total cover:
5 20% of total cover:
2
Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
=Total Cover
50% of total cover:
20% of total cover:
Herb Stratum (Plot size: 5' )
1. Cardamine flexuosa
10 Yes
FAC
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
10 =Total Cover
50% of total cover:
5 20% of total cover:
2
Woody Vine Stratum (Plot size:
)
1.
2.
3.
4.
5.
=Total Cover
50% of total cover:
20% of total cover:
Remarks: (Include photo numbers here or on a separate sheet.)
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC:
4
(A)
Total Number of Dominant
Species Across All Strata:
5
(B)
Percent of Dominant Species
That Are OBL, FACW, or FAC:
80.0%
(A/B)
Prevalence Index worksheet:
Total % Cover of:
Multiply by:
OBL species 0
x 1 =
0
FACW species 0
x 2 =
0
FAC species 75
x 3 =
225
FACU species 30
x 4 =
120
UPL species 0
x 5 =
0
Column Totals: 105
(A)
345
(B)
Prevalence Index = B/A
=
3.29
_ 1 - Rapid Test for Hydrophytic Vegetation
X 2 - Dominance Test is >50%
_3 - Prevalence Index is <-3.0'
4 - Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Problematic Hydrophytic Vegetation' (Explain)
'Indicators of hydric soil and wetland hydrology must be
present, unless disturbed or problematic.
Definitions of Five Vegetation Strata:
Tree - Woody plants, excluding woody vines,
approximately 20 ft (6 m) or more in height and 3 in.
(7.6 cm) or larger in diameter at breast height (DBH).
Sapling - Woody plants, excluding woody vines,
approximately 20 ft (6 m) or more in height and less
than 3 in. (7.6 cm) DBH.
Shrub - Woody Plants, excluding woody vines,
approximately 3 to 20 ft (1 to 6 m) in height.
Herb - All herbaceous (non -woody) plants, including
herbaceous vines, regardless of size, and woody
plants, except woody vines, less than approximately
3 ft (1 m) in height.
Woody Vine - All woody vines, regardless of height.
Hydrophytic
Vegetation
Present? Yes X No
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont -Version 2.0
SOIL
Sampling Point: DP1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type' Loc2 Texture Remarks
0-10 7.5YR 4/1 95 5YR 4/6 5 C PL/M Loamy/Clayey Prominent redox concentrations
'Type: C=Concentration, D=Depletion,
Hydric Soil Indicators:
_ Histosol (Al)
_ Histic Epipedon (A2)
—Black Histic (A3)
—Hydrogen Sulfide (A4)
_Stratified Layers (A5)
2 cm Muck (A10) (LRR N)
_Depleted Below Dark Surface (A11)
_Thick Dark Surface (Al2)
_Sandy Mucky Mineral (S1)
_Sandy Gleyed Matrix (S4)
_Sandy Redox (S5)
_Stripped Matrix (S6)
Dark Surface (S7)
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
RM=Reduced Matrix, MS=Masked Sand Grains.
_ Polyvalue Below Surface (S8) (MLRA 147, 148)
_Thin Dark Surface (S9) (MLRA 147, 148)
_Loamy Mucky Mineral (F1) (MLRA 136)
—Loamy Gleyed Matrix (F2)
X Depleted Matrix (F3)
_ Redox Dark Surface (F6)
—Depleted Dark Surface (F7)
_ Redox Depressions (F8)
_Iron -Manganese Masses (F12) (LRR N,
MLRA 136)
_ Umbric Surface (F13) (MLRA 122, 136)
—Piedmont Floodplain Soils (F19) (MLRA 148)
Red Parent Material (F21) (MLRA 127, 147, 148)
2Location: PL=Pore Lining, M=Matrix
Indicators for Problematic Hydric Soils3:
_2 cm Muck (A10) (MLRA 147)
_Coast Prairie Redox (A16)
(MLRA 147, 148)
_Piedmont Floodplain Soils (F19)
(MLRA 136, 147)
—Red Parent Material (F21)
(outside MLRA 127, 147, 148)
_Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Hydric Soil Present? Yes X No
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont —Version 2.0
U.S. Army Corps of Engineers OMB Control #: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Eastern Mountains and Piedmont Region Requirement Control Symbol EXEMPT:
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Kerwin Circle Substation City/County: Forsyth Sampling Date: 2/24/2020
Applicant/Owner: Duke Energy Carolinas State: NC Sampling Point: DP2
Investigator(s): KJS - Dewberry Section, Township, Range:
Landform (hillside, terrace, etc.): Hillslope Local relief (concave, convex, none): Convex Slope (%): <5
Subregion (LRR or MLRA): LRR P, MLRA 136 Lat: 36.138871 Long:-80.115747 Datum: WGS 1984
Soil Map Unit Name: Bannertown-Toast complex, 15-25% slopes NWI classification: UPL
Are climatic / hydrologic conditions on the site typical for this time of year? Yes X No (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS —Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X Is the Sampled Area
Hydric Soil Present? Yes No X within a Wetland? Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Upland data point for WA
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required: check all that apply)
—Surface Soil Cracks (136)
_Surface Water (Al) _True
Aquatic Plants (1314)
_Sparsely Vegetated Concave Surface (138)
—High Water Table (A2) —Hydrogen
Sulfide Odor (C1)
—Drainage Patterns (1310)
_Saturation (A3) _Oxidized
Rhizospheres on Living Roots (C3)
_Moss Trim Lines (1316)
—Water Marks (131) —Presence
of Reduced Iron (C4)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132) _Recent
Iron Reduction in Tilled Soils (C6)
_Crayfish Burrows (C8)
_Drift Deposits (133) _Thin
Muck Surface (C7)
_Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (134) _Other
(Explain in Remarks)
_Stunted or Stressed Plants (D1)
_Iron Deposits (135)
_Geomorphic Position (D2)
—Inundation Visible on Aerial Imagery (137)
_Shallow Aquitard (D3)
—Water-Stained Leaves (139)
_ Microtopographic Relief (D4)
Aquatic Fauna (1313)
FAC-Neutral Test (D5)
Field Observations:
Surface Water Present? Yes No
X Depth (inches):
Water Table Present? Yes No
X Depth (inches):
Saturation Present? Yes No
X Depth (inches):
Wetland Hydrology Present? Yes No X
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont —Version 2.0
VEGETATION (Five Strata) - Use scientific names of plants.
Sampling Point: DP2
Tree Stratum (Plot size: 30' )
1. Acer rubrum
2. Quercus alba
3. Fagus grandifolia
4.
5.
6.
50% of total cover: _
Sapling Stratum (Plot size: 15' )
1. Ilex opaca
2. Fagus grandifolia
3.
4.
5.
6.
Absolute
Dominant
Indicator
% Cover
Species?
Status
30
Yes
FAC
30
Yes
FACU
20
Yes
FACU
80 =Total Cover
40 20% of total cover: 16
15 Yes
10 Yes
25 =Total Cover
50% of total cover: 13 20% of total cover:
Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
50% of total cover:
Herb Stratum (Plot size: 5' )
1. Lonicera japonica
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
50% of total cover: 5
Woody Vine Stratum (Plot size: )
1.
2.
3.
4.
5.
FACU
FACU
=Total Cover
20% of total cover:
10 Yes FACU
10 =Total Cover
20% of total cover: 2
=Total Cover
50% of total cover: 20% of total cover:
Remarks: (Include photo numbers here or on a separate sheet.)
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC:
1
(A)
Total Number of Dominant
Species Across All Strata:
6
(B)
Percent of Dominant Species
That Are OBL, FACW, or FAC:
16.7%
(A/B)
Prevalence Index worksheet:
Total % Cover of:
Multiply by:
OBL species 0
x 1 =
0
FACW species 0
x 2 =
0
FAC species 30
x 3 =
90
FACU species 85
x 4 =
340
UPL species 0
x 5 =
0
Column Totals: 115
(A)
430
(B)
Prevalence Index = B/A
=
3.74
_ 1 - Rapid Test for Hydrophytic Vegetation
_2 - Dominance Test is >50%
_3 - Prevalence Index is <-3.0'
4 - Morphological Adaptations' (Provide supporting
data in Remarks or on a separate sheet)
Problematic Hydrophytic Vegetation' (Explain)
'Indicators of hydric soil and wetland hydrology must be
present, unless disturbed or problematic.
Definitions of Five Vegetation Strata:
Tree - Woody plants, excluding woody vines,
approximately 20 ft (6 m) or more in height and 3 in.
(7.6 cm) or larger in diameter at breast height (DBH).
Sapling - Woody plants, excluding woody vines,
approximately 20 ft (6 m) or more in height and less
than 3 in. (7.6 cm) DBH.
Shrub - Woody Plants, excluding woody vines,
approximately 3 to 20 ft (1 to 6 m) in height.
Herb - All herbaceous (non -woody) plants, including
herbaceous vines, regardless of size, and woody
plants, except woody vines, less than approximately
3 ft (1 m) in height.
Woody Vine - All woody vines, regardless of height.
Hydrophytic
Vegetation
Present? Yes No X
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont -Version 2.0
SOIL
Sampling Point: DP2
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type' Loc2 Texture Remarks
0-6 10yr 4/3 100 Loamy/Clayey
6-12 10YR 5/6 100 Loamy/Clayey
'Type: C=Concentration, D=Depletion,
Hydric Soil Indicators:
_ Histosol (Al)
_ Histic Epipedon (A2)
—Black Histic (A3)
—Hydrogen Sulfide (A4)
_Stratified Layers (A5)
2 cm Muck (A10) (LRR N)
_Depleted Below Dark Surface (A11)
_Thick Dark Surface (Al2)
_Sandy Mucky Mineral (S1)
_Sandy Gleyed Matrix (S4)
_Sandy Redox (S5)
_Stripped Matrix (S6)
Dark Surface (S7)
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
RM=Reduced Matrix, MS=Masked Sand Grains.
_ Polyvalue Below Surface (S8) (MLRA 147, 148)
_Thin Dark Surface (S9) (MLRA 147, 148)
_Loamy Mucky Mineral (F1) (MLRA 136)
—Loamy Gleyed Matrix (F2)
—Depleted Matrix (F3)
_ Redox Dark Surface (F6)
—Depleted Dark Surface (F7)
_ Redox Depressions (F8)
_Iron -Manganese Masses (F12) (LRR N,
MLRA 136)
_ Umbric Surface (F13) (MLRA 122, 136)
—Piedmont Floodplain Soils (F19) (MLRA 148)
Red Parent Material (F21) (MLRA 127, 147, 148)
2Location: PL=Pore Lining, M=Matrix
Indicators for Problematic Hydric Soils3:
_2 cm Muck (A10) (MLRA 147)
_Coast Prairie Redox (A16)
(MLRA 147, 148)
_Piedmont Floodplain Soils (F19)
(MLRA 136, 147)
—Red Parent Material (F21)
(outside MLRA 127, 147, 148)
_Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Hydric Soil Present? Yes No X
ENG FORM 6116-4-SG, JUL 2018 Eastern Mountains and Piedmont —Version 2.0
APPENDIX C
North Carolina Wetland Assessment Method
(NCWAM) Data Forms
NC WAM FIELD ASSESSMENT FORM
Accompanies user Manual Version b.0
USACE AID #
NCDWR#
Project Name
Kerwin Circle Station
Date of Evaluation
2/24/2020
Applicant/Owner Name
Duke Energy Carolinas
Wetland Site Name
WA
Wetland Type
Headwater Forest
Assessor Name/Organization
K. Shumaker - Dewberry
Level III Ecoregion
Piedmont
Nearest Named Water Body
Belews Creek
River Basin
Roanoke
USGS 8-Digit Catalogue Unit
03010103
County
Forsyth
NCDWR Region
Winston-Salem
F— Yes M No
Precipitation within 48 hrs?
Latitude/Longitude (deci-degrees)
36.138210.-80.115708
Evidence of stressors affecting the assessment area (may not be within the assessment area)
Please circle and/or make note on the last page if evidence of stressors is apparent. Consider departure from reference, if appropriate, in
recent past (for instance, within 10 years). Noteworthy stressors include, but are not limited to the following.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby septic
tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? ❑ Yes ® No
Regulatory Considerations - Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑ Anadromous fish
❑ Federally protected species or State endangered or threatened species
❑ NCDWR riparian buffer rule in effect
❑ Abuts a Primary Nursery Area (PNA)
❑ Publicly owned property
❑ N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
❑ Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
❑ Designated NCNHP reference community
❑ Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
❑ Blackwater
® Brownwater
❑ Tidal (if tidal, check one of the following boxes) ❑ Lunar ❑ Wind ❑ Both
Is the assessment area on a coastal island? ❑ Yes ® No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ❑ Yes ® No
Does the assessment area experience overbank flooding during normal rainfall conditions? ❑ Yes ® No
1. Ground Surface Condition/Vegetation Condition —assessment area condition metric
Check a box in each column. Consider alteration to the ground surface (GS) in the assessment area and vegetation structure (VS) in the
assessment area. Compare to reference wetland if applicable (see User Manual). If a reference is not applicable, then rate the assessment
area based on evidence an effect.
GS VS
®A ®A Not severely altered
❑B ❑B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing, less
diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration — assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and duration (Sub).
Consider both increase and decrease in hydrology. A ditch <_ 1 foot deep is considered to affect surface water only, while a ditch > 1 foot
deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
®A ®A Water storage capacity and duration are not altered.
❑B ❑B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
❑C ❑C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation change)
(examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief — assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column. Select the appropriate storage for the assessment area (AA) and the wetland type (WT).
AA WT
3a. ❑A ❑A Majority of wetland with depressions able to pond water > 1 deep
❑B ❑B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
®C ®C Majority of wetland with depressions able to pond water 3 to 6 inches deep
❑D ❑D Depressions able to pond water < 3 inches deep
3b. ❑A Evidence that maximum depth of inundation is greater than 2 feet
❑B Evidence that maximum depth of inundation is between 1 and 2 feet
®C Evidence that maximum depth of inundation is less than 1 foot
4. Soil Texture/Structure — assessment area condition metric (skip for all marshes)
Check a box from each of the three soil property groups below. Dig soil profile in the dominant assessment area landscape feature.
Make soil observations within the top 12 inches. Use most recent National Technical Committee for Hydric Soils guidance for regional
indicators.
4a. ❑A Sandy soil
®B Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
❑C Loamy or clayey soils not exhibiting redoximorphic features
❑D Loamy or clayey gleyed soil
❑E Histosol or histic epipedon
4b. ®A Soil ribbon < 1 inch
❑B Soil ribbon >_ 1 inch
4c. ®A No peat or muck presence
❑B A peat or muck presence
5. Discharge into Wetland — opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub -surface pollutants or discharges (Sub). Examples
of sub -surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf Sub
®A ®A Little or no evidence of pollutants or discharges entering the assessment area
❑B ❑B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
❑C ❑C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use — opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources draining
to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the assessment area (5M),
and within 2 miles and within the watershed draining to the assessment area (2M).
WS 5M 2M
®A ❑A ❑A > 10% impervious surfaces
❑B ❑B ❑B Confined animal operations (or other local, concentrated source of pollutants
❑C ❑C ❑C >_ 20% coverage of pasture
❑D ❑D ❑D >_ 20% coverage of agricultural land (regularly plowed land)
❑E ❑E ❑E >_ 20% coverage of maintained grass/herb
❑F ❑F ❑F >_ 20% coverage of clear-cut land
❑G ®G ®G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent drainage and/or overbank flow from affecting the
assessment area.
7. Wetland Acting as Vegetated Buffer —assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
®Yes ❑No If Yes, continue to 7b. If No, skip to Metric 8.
Wetland buffer need only be present on one side of the water body. Make buffer judgment based on the average width of wetland.
Record a note if a portion of the buffer has been removed or disturbed.
7b. How much of the first 50 feet from the bank is wetland? (Wetland buffer need only be present on one side of the .water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
❑A >_ 50 feet
®B From 30 to < 50 feet
❑C From 15 to < 30 feet
❑D From 5 to < 15 feet
❑E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
®<_ 15-feet wide ❑> 15-feet wide ❑ Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
®Yes ❑No
7e. Is stream or other open water sheltered or exposed?
®Sheltered — adjacent open water with width < 2500 feet and no regular boat traffic.
❑Exposed — adjacent open water with width >_ 2500 feet or regular boat traffic.
8. Wetland Width at the Assessment Area — wetland type/wetland complex condition metric (evaluate WT for all marshes and
Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp Forest
only)
Check a box in each column for riverine wetlands only. Select the average width for the wetland type at the assessment area (WT) and
the wetland complex at the assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
❑A ❑A >_ 100 feet
❑B ❑B From 80 to < 100 feet
❑C ❑C From 50 to < 80 feet
❑D ❑D From 40 to < 50 feet
®E ®E From 30 to < 40 feet
❑F ❑F From 15 to < 30 feet
❑G ❑G From 5 to < 15 feet
❑H ❑H < 5 feet
9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands)
Answer for assessment area dominant landform.
®A Evidence of short -duration inundation (< 7 consecutive days)
❑B Evidence of saturation, without evidence of inundation
❑C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
®A Sediment deposition is not excessive, but at approximately natural levels.
❑B Sediment deposition is excessive, but not overwhelming the wetland.
❑C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select "K" for the FW column.
WT WC FW (if applicable)
❑A ❑A ❑A >_ 500 acres
❑B ❑B ❑B From 100 to < 500 acres
❑C ❑C ❑C From 50 to < 100 acres
❑D ❑D ❑D From 25 to < 50 acres
❑E ❑E ❑E From 10 to < 25 acres
❑F ❑F ❑F From 5 to < 10 acres
❑G ❑G ❑G From 1 to < 5 acres
❑H ®H ®H From 0.5 to < 1 acre
®I ❑I ❑I From 0.1 to < 0.5 acre
❑J ❑J ❑J From 0.01 to < 0.1 acre
❑K ❑K ❑K < 0.01 acre or assessment area is clear-cut
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
❑A Pocosin is the full extent (>_ 90%) of its natural landscape size.
❑B Pocosin type is < 90% of the full extent of its natural landscape size.
13. Connectivity to Other Natural Areas — landscape condition metric
13a. Check appropriate box(es) (a box may be checked in each column). Involves a GIS effort with field adjustment. This metric
evaluates whether the wetland is well connected (Well) and/or loosely connected (Loosely) to the landscape patch, the contiguous
naturally vegetated area and open water (if appropriate). Boundaries are formed by four -lane roads, regularly maintained utility line
corridors the width of a four -lane road or wider, urban landscapes, maintained fields (pasture and agriculture), or open water > 300
feet wide.
Well Loosely
❑A
®A
>_ 500 acres
®B
❑B
From 100 to < 500 acres
❑C
❑C
From 50 to < 100 acres
❑D
❑D
From 10 to < 50 acres
❑E
❑E
< 10 acres
❑F
❑F
Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
❑Yes ❑No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors, and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear cut,
select option "C."
®A 0
❑ B 1 to 4
❑C 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
®A Vegetation is close to reference condition in species present and their proportions. Lower strata composed of appropriate
species, with exotic plants absent or sparse within the assessment area.
❑B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or clearing.
It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
❑C Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in at
least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
®A Vegetation diversity is high and is composed primarily of native species (< 10% cover of exotics).
❑B Vegetation diversity is low or has > 10% to 50% cover of exotics.
❑C Vegetation is dominated by exotic species (> 50 % cover of exotics).
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
®Yes ❑No If Yes, continue to 17b. If No, skip to Metric 18.
17b. Evaluate percent coverage of assessment area vegetation for all marshes only. Skip to 17c for non -marsh wetlands.
❑A >_ 25% coverage of vegetation
❑B < 25% coverage of vegetation
17c. Check a box in each column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider
structure in airspace above the assessment area (AA) and the wetland type (WT) separately.
TAA WT
o ®A ®A Canopy closed, or nearly closed, with natural gaps associated with natural processes
❑B ❑B Canopy present, but opened more than natural gaps
U ❑C ❑C Canopy sparse or absent
T
o ❑A
❑A
Dense mid-story/sapling layer
®B
®B
Moderate density mid-story/sapling layer
❑C
❑C
Mid-story/sapling layer sparse or absent
- ❑A
❑A
Dense shrub layer
Moderate density layer
1E ®B
®B
shrub
U) ❑C
❑C
Shrub layer sparse or absent
-0 ❑A
❑A
Dense herb layer
_ ®B
®B
Moderate density herb layer
❑C
❑C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
❑A Large snags (more than one) are visible (> 12 inches DBH, or large relative to species present and landscape stability).
®B Not A
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
❑A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
®B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12 inch DBH.
❑C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
❑A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
®B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater Marsh only)
Select the figure that best describes the amount of interspersion between vegetation and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
❑A ❑B ❑C ❑D
22
Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization, diversion,
man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
®A Overbank and overland flow are not severely altered in the assessment area.
❑B Overbank flow is severely altered in the assessment area.
❑C Overland flow is severely altered in the assessment area.
❑D Both overbank and overland flow are severely altered in the assessment area.
Notes
NC WAM Wetland Rating Sheet
Accompanies User Manual Version 5.0
Wetland Site Name WA
Wetland Type Headwater Forest
Date of Assessment 2/24/2020
K. Shumaker-
Assessor Name/Organization Dewberry
Notes on Field Assessment Form (Y/N) NO
Presence of regulatory considerations (Y/N) NO
Wetland is intensively managed (Y/N) NO
Assessment area is located within 50 feet of a natural tributary or other open water (Y/N) YES
Assessment area is substantially altered by beaver (Y/N) NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N) NO
Assessment area is on a coastal island (Y/N) NO
Sub -function Ratina Summa
Function Sub -function Metrics Rating
Hydrology Surface Storage and Retention Condition HIGH
Sub -surface Storage and
Retention Condition HIGH
Water Quality Pathogen Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence
(Y/N)
NO
Particulate Change
Condition
HIGH
Condition/Opportunity
NA
Opportunity Presence
(Y/N)
NA
Soluble Change
Condition
MEDIUM
Condition/Opportunity
MEDIUM
Opportunity Presence
(Y/N)
NO
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence
(Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence
(Y/N)
NA
Habitat Physical Structure
Condition
HIGH
Landscape Patch Structure
Condition
HIGH
Vegetation Composition
Condition
HIGH
Function Ratina Summa
Function
Metrics
Rating
Hydrology
Condition
HIGH
Water Quality
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence (Y/N)
YES
Habitat
Condition
HIGH
Overall Wetland Rating HIGH
NC WAM FIELD ASSESSMENT FORM
Accompanies user Manual Version b.0
USACE AID #
NCDWR#
Project Name
Kerwin Circle Station
Date of Evaluation
2/24/2020
Applicant/Owner Name
Duke Energy Carolinas
Wetland Site Name
WA
Wetland Type
Riverine Swamp Forest
Assessor Name/Organization
K. Shumaker - Dewberry
Level III Ecoregion
Piedmont
Nearest Named Water Body
Belews Creek
River Basin
Roanoke
USGS 8-Digit Catalogue Unit
03010103
County
Forsyth
NCDWR Region
Winston-Salem
F— Yes M No
Precipitation within 48 hrs?
Latitude/Longitude (deci-degrees)
36.138649.-80.115911
Evidence of stressors affecting the assessment area (may not be within the assessment area)
Please circle and/or make note on the last page if evidence of stressors is apparent. Consider departure from reference, if appropriate, in
recent past (for instance, within 10 years). Noteworthy stressors include, but are not limited to the following.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby septic
tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? ❑ Yes ® No
Regulatory Considerations - Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑ Anadromous fish
❑ Federally protected species or State endangered or threatened species
❑ NCDWR riparian buffer rule in effect
❑ Abuts a Primary Nursery Area (PNA)
❑ Publicly owned property
❑ N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
❑ Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
❑ Designated NCNHP reference community
❑ Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
❑ Blackwater
® Brownwater
❑ Tidal (if tidal, check one of the following boxes) ❑ Lunar ❑ Wind ❑ Both
Is the assessment area on a coastal island? ❑ Yes ® No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ❑ Yes ® No
Does the assessment area experience overbank flooding during normal rainfall conditions? ® Yes ❑ No
1. Ground Surface Condition/Vegetation Condition —assessment area condition metric
Check a box in each column. Consider alteration to the ground surface (GS) in the assessment area and vegetation structure (VS) in the
assessment area. Compare to reference wetland if applicable (see User Manual). If a reference is not applicable, then rate the assessment
area based on evidence an effect.
GS VS
®A ®A Not severely altered
❑B ❑B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing, less
diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration — assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and duration (Sub).
Consider both increase and decrease in hydrology. A ditch <_ 1 foot deep is considered to affect surface water only, while a ditch > 1 foot
deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
®A ®A Water storage capacity and duration are not altered.
❑B ❑B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
❑C ❑C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation change)
(examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief — assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column. Select the appropriate storage for the assessment area (AA) and the wetland type (WT).
AA WT
3a. ❑A ❑A Majority of wetland with depressions able to pond water > 1 deep
❑B ❑B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
®C ®C Majority of wetland with depressions able to pond water 3 to 6 inches deep
❑D ❑D Depressions able to pond water < 3 inches deep
3b. ❑A Evidence that maximum depth of inundation is greater than 2 feet
❑B Evidence that maximum depth of inundation is between 1 and 2 feet
®C Evidence that maximum depth of inundation is less than 1 foot
4. Soil Texture/Structure — assessment area condition metric (skip for all marshes)
Check a box from each of the three soil property groups below. Dig soil profile in the dominant assessment area landscape feature.
Make soil observations within the top 12 inches. Use most recent National Technical Committee for Hydric Soils guidance for regional
indicators.
4a. ❑A Sandy soil
®B Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
❑C Loamy or clayey soils not exhibiting redoximorphic features
❑D Loamy or clayey gleyed soil
❑E Histosol or histic epipedon
4b. ®A Soil ribbon < 1 inch
❑B Soil ribbon >_ 1 inch
4c. ®A No peat or muck presence
❑B A peat or muck presence
5. Discharge into Wetland — opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub -surface pollutants or discharges (Sub). Examples
of sub -surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf Sub
®A ®A Little or no evidence of pollutants or discharges entering the assessment area
❑B ❑B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
❑C ❑C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use — opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources draining
to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the assessment area (5M),
and within 2 miles and within the watershed draining to the assessment area (2M).
WS 5M 2M
®A ❑A ❑A > 10% impervious surfaces
❑B ❑B ❑B Confined animal operations (or other local, concentrated source of pollutants
❑C ❑C ❑C >_ 20% coverage of pasture
❑D ❑D ❑D >_ 20% coverage of agricultural land (regularly plowed land)
❑E ❑E ❑E >_ 20% coverage of maintained grass/herb
❑F ❑F ❑F >_ 20% coverage of clear-cut land
❑G ®G ®G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent drainage and/or overbank flow from affecting the
assessment area.
7. Wetland Acting as Vegetated Buffer —assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
®Yes ❑No If Yes, continue to 7b. If No, skip to Metric 8.
Wetland buffer need only be present on one side of the water body. Make buffer judgment based on the average width of wetland.
Record a note if a portion of the buffer has been removed or disturbed.
7b. How much of the first 50 feet from the bank is wetland? (Wetland buffer need only be present on one side of the .water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
❑A >_ 50 feet
®B From 30 to < 50 feet
❑C From 15 to < 30 feet
❑D From 5 to < 15 feet
❑E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
®<_ 15-feet wide ❑> 15-feet wide ❑ Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
®Yes ❑No
7e. Is stream or other open water sheltered or exposed?
®Sheltered — adjacent open water with width < 2500 feet and no regular boat traffic.
❑Exposed — adjacent open water with width >_ 2500 feet or regular boat traffic.
8. Wetland Width at the Assessment Area — wetland type/wetland complex condition metric (evaluate WT for all marshes and
Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp Forest
only)
Check a box in each column for riverine wetlands only. Select the average width for the wetland type at the assessment area (WT) and
the wetland complex at the assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
❑A ❑A >_ 100 feet
❑B ❑B From 80 to < 100 feet
❑C ❑C From 50 to < 80 feet
❑D ®D From 40 to < 50 feet
❑E ❑E From 30 to < 40 feet
❑F ❑F From 15 to < 30 feet
❑G ❑G From 5 to < 15 feet
❑H ❑H < 5 feet
9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands)
Answer for assessment area dominant landform.
❑A Evidence of short -duration inundation (< 7 consecutive days)
❑B Evidence of saturation, without evidence of inundation
®C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
®A Sediment deposition is not excessive, but at approximately natural levels.
❑B Sediment deposition is excessive, but not overwhelming the wetland.
❑C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select "K" for the FW column.
WT WC FW (if applicable)
❑A ❑A ❑A >_ 500 acres
❑B ❑B ❑B From 100 to < 500 acres
❑C ❑C ❑C From 50 to < 100 acres
❑D ❑D ❑D From 25 to < 50 acres
❑E ❑E ❑E From 10 to < 25 acres
❑F ❑F ❑F From 5 to < 10 acres
❑G ❑G ❑G From 1 to < 5 acres
®H ®H ®H From 0.5 to < 1 acre
❑I ❑I ❑I From 0.1 to < 0.5 acre
❑J ❑J ❑J From 0.01 to < 0.1 acre
❑K ❑K ❑K < 0.01 acre or assessment area is clear-cut
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
❑A Pocosin is the full extent (>_ 90%) of its natural landscape size.
❑B Pocosin type is < 90% of the full extent of its natural landscape size.
13. Connectivity to Other Natural Areas — landscape condition metric
13a. Check appropriate box(es) (a box may be checked in each column). Involves a GIS effort with field adjustment. This metric
evaluates whether the wetland is well connected (Well) and/or loosely connected (Loosely) to the landscape patch, the contiguous
naturally vegetated area and open water (if appropriate). Boundaries are formed by four -lane roads, regularly maintained utility line
corridors the width of a four -lane road or wider, urban landscapes, maintained fields (pasture and agriculture), or open water > 300
feet wide.
Well Loosely
❑A
®A
>_ 500 acres
®B
❑B
From 100 to < 500 acres
❑C
❑C
From 50 to < 100 acres
❑D
❑D
From 10 to < 50 acres
❑E
❑E
< 10 acres
❑F
❑F
Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
❑Yes ❑No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors, and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear cut,
select option "C."
®A 0
❑ B 1 to 4
❑C 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
®A Vegetation is close to reference condition in species present and their proportions. Lower strata composed of appropriate
species, with exotic plants absent or sparse within the assessment area.
❑B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or clearing.
It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
❑C Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in at
least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
®A Vegetation diversity is high and is composed primarily of native species (< 10% cover of exotics).
❑B Vegetation diversity is low or has > 10% to 50% cover of exotics.
❑C Vegetation is dominated by exotic species (> 50 % cover of exotics).
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
®Yes ❑No If Yes, continue to 17b. If No, skip to Metric 18.
17b. Evaluate percent coverage of assessment area vegetation for all marshes only. Skip to 17c for non -marsh wetlands.
❑A >_ 25% coverage of vegetation
❑B < 25% coverage of vegetation
17c. Check a box in each column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider
structure in airspace above the assessment area (AA) and the wetland type (WT) separately.
TAA WT
o ®A ®A Canopy closed, or nearly closed, with natural gaps associated with natural processes
❑B ❑B Canopy present, but opened more than natural gaps
U ❑C ❑C Canopy sparse or absent
T
o ❑A
❑A
Dense mid-story/sapling layer
®B
®B
Moderate density mid-story/sapling layer
❑C
❑C
Mid-story/sapling layer sparse or absent
- ❑A
❑A
Dense shrub layer
Moderate density layer
1E ❑B
®B
shrub
U) ®C
❑C
Shrub layer sparse or absent
-0 ❑A
❑A
Dense herb layer
_ ❑B
®B
Moderate density herb layer
®C
❑C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
®A Large snags (more than one) are visible (> 12 inches DBH, or large relative to species present and landscape stability).
❑B Not A
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
®A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
❑B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12 inch DBH.
❑C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
❑A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
®B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater Marsh only)
Select the figure that best describes the amount of interspersion between vegetation and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
❑A ❑B ❑C ❑D
22
Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization, diversion,
man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
®A Overbank and overland flow are not severely altered in the assessment area.
❑B Overbank flow is severely altered in the assessment area.
❑C Overland flow is severely altered in the assessment area.
❑D Both overbank and overland flow are severely altered in the assessment area.
Notes
NC WAM Wetland Rating Sheet
Accompanies User Manual Version 5.0
Wetland Site Name WA Date of Assessment 2/24/2020
K. Shumaker-
Wetland Type Riverine Swamp Forest Assessor Name/Organization Dewberry
Notes on Field Assessment Form (Y/N) NO
Presence of regulatory considerations (Y/N) NO
Wetland is intensively managed (Y/N) NO
Assessment area is located within 50 feet of a natural tributary or other open water (Y/N) YES
Assessment area is substantially altered by beaver (Y/N) NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N) YES
Assessment area is on a coastal island (Y/N) NO
Sub -function Ratina Summa
Function Sub -function Metrics Rating
Hydrology Surface Storage and Retention Condition HIGH
Sub -surface Storage and
Retention Condition MEDIUM
Water Quality Pathogen Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence
(Y/N)
NO
Particulate Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence
(Y/N)
NO
Soluble Change
Condition
MEDIUM
Condition/Opportunity
MEDIUM
Opportunity Presence
(Y/N)
NO
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence
(Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence
(Y/N)
NA
Habitat Physical Structure
Condition
HIGH
Landscape Patch Structure
Condition
HIGH
Vegetation Composition
Condition
HIGH
Function Ratina Summa
Function
Metrics
Rating
Hydrology
Condition
HIGH
Water Quality
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence (Y/N)
YES
Habitat
Condition
HIGH
Overall Wetland Rating HIGH
APPENDIX D
Stream Identification Forms
5R
NC DWO Stream Identification Form Version 4.11
Date: �/a
ProjectlSite: KC�YJ�/1 (� fclG 5W,
Latitude: 3q847Y
Evaluator:
K 11f\County:
^
Longitude: _ M. 11 S9 it
Total Points:
Stream is at least intermittent
Stream Determination (cir one)
Other & jewS CfeL IL
if? 19 or perennial if � 30'
Ephemeral Intermitte Perenn'
e g Quad Name: �L , Z� �l
A. Geomorphology (Subtotal =
Absent
Weak
Moderate
Stro g
18. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
3
3. In -channel structure: ex. riffle -pool, step -pool,
ri Ie ool se uence
0
1
2
4. Particle size of stream substrate
0
1
2
5. Active/relict floodplain
0
1
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
Co
1
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1.5
11. Second or greater order channel
N =
Yes = 3
alulRNal uIRAIOS am, llul latcu, See UISGUSslullb III IIIallUal
B. Hvdroloav (Subtotal = q )
12. Presence of Baseflow
0
1
LD
3
13. Iron oxidizing bacteria
0
1
(75
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
M.1
1.5
16. Organic debris lines or piles
0
CO3D
1
1.5
17. Soil -based evidence of high water table?
No = 0
es = 3
C. Bioloav (Subtotal = -+
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
2
1
0
20. Macrobenthos (note diversity and abundance)
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
cc
0.5
1
1.5
23. Crayfish
0.5
1
1.5
24. Amphibians
0
1
1.5
25. Algae
0
(77ro
1
1.5
26. Wetland plants in streambed
FACW=
0.75; OBL = 1.5
er =
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes: SG(a
Sketch:
Cn
33
NC DWQ Stream Identification Form Version 4.11
Date: Z
Project/Site: K[rw,,n `p�a���
Latitude:
Evaluator:
County:
Longitude:
Total Points:
Stream Determi atio circle one)
Other Bcle'AS (reeV_
Stream is at least intermittent
if z 19 or perennial if 2 30'
Ephemeral ntermi en Perennial
e.g Quad Name: NL 1 q
WO
A. Geomorphology (Subtotal
Absent
Weak
Moderate
Strong
1 a' Continuity of channel bed and bank
0
1
r15
- 3
2. Sinuosity of channel along thalweg
0
1
2
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0
1
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
2
3
7. Recent alluvial deposits
0
2
3
8. Headcuts
0
2
3
9. Grade control
0.5
1
1.5
10. Natural valley
0
1
1.5
11. Second or greater order channel
Noj-'ff
Yes = 3
dnmadi unaMs dFu nut rdmu, snc uisw suns m manual
B. Hvdrolow (Subtotal = )
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5,)
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
.5
1
1.5
17. Soil -based evidence of high water table?
No =
Yes = 3
C. Biology (Subtotal =
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
A
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; OBL = 1.5
ther = 0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Sketch:
NC DWO Stream Identification Form Version 4.11
Date: 2 25
Zo 2a
Project/Site:
K�fvv:� C:r�l� s+A
Latitude: 31.. l38 (03y
Evaluator: 1L3`5
County: ofS
Longitude: _ 90. (vsyk.(
Total Points:
Stream is at least intermittent e�Ephemeral
Stream Determination (circl
Other 'cic-'5 Crea.
if 2: 19 or perennial if 2:30' 3
Intermittent erennial
e g Quad Name: N C t 2019
A. Geomorphology (Subtotal =
Absent
Weak
Moderate
Strong
1 a' Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
r
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0
1
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
3
8. Headcuts
1
2.
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.
11. Second or greater order channel
CVM0
Yes = 3
alullulal ullullr* al0 llvl latcu, see ulsGusslulls ill lllallual
B. Hvdroloav (Subtotal = A 1
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
1
2
3
14. Leaf litter
1.5
1
0
0
15. Sediment on plants or debris
0
0.5
1.5
16. Organic debris lines or piles
1 0
1 0.5 .
1
1.5
17. Soil -based evidence of high water table?
I No = 0
Yes = 3
C. Biolociv (Subtotal = U21 �) )
18. Fibrous roots in streambed
2
1
0
19. Rooted upland plants in streambed
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
M
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
CU
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; OBL = 1.5
Other = 0
'perennial streams may also be identified using other methods. See p. 35 of manual.
Notes: Crr, ti 1
Sketch:
E-
V G
f
to
a
NC DWQ Stream Identification Form Version 4.11
Date: a -ao
Project/Site: Ka"-v, C:t lc %J-m
Latitude: 314.139545
Evaluator: PA
County: 44)
Longitude: _ $0.It 49 2.15
Total Points:
Stream is at least intermittent
Stream Dete ircle one)
Other &Leis CrecK
�Q ,s
if � 19 or perennial if 2 30* uu
Ephemeral ntermitten Perennial
e.g. Quad Name: tic ZdI 9
A. Geomorphology (Subtotal =
Absent
Weak
Moderate
Strong
1a Continuity of channel bed and bank
0
1
C5
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
ripple -pool sequence
0
1
31'
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
2
3
6. Depositional bars or benches
0
2
3
7. Recent alluvial deposits
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0.5
1
1.5
10. Natural valley
0
0.5
1.5
11. Second or greater order channel
No = 0
Yes = 3
dIU1161dI UILUMb CHU IIUI IdICU, b= UlbLoU55lU113 111111dilUdI
B. Hvdrologv (Subtotal = ID )
12. Presence of Baseflow
0
1
2
3s
13. Iron oxidizing bacteria
1
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
Q'a
1
1.5
16. Organic debris lines or piles
0
.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes =
C. Biology (Subtotal = it,) )
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
1
2
3
21. Aquatic Mollusks
1
2
3
22. Fish
0.5
1
1.5
23. Crayfish
'0
0.5
1
1.5
24. Amphibians
0.5
1
1.5
25. Algae
0.5
1
1.5
26. Wetland plants in streambed
FACW = 0.75; PBL
= 1.5 Other = 0
*perennial streams may also be identified using other methods. See p. 35 of manual.
Notes:
Sketch:
APPENDIX E
North Carolina Stream Assessment Method
(NCSAM) Data Forms
NC SAM FIELD ASSESSMENT RESULTS
user rvianuai version d.,i
USACE AID #: NCDWR #:
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle,
and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and
number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions
and explanations of requested information. Record in the "Notes/Sketch" section if supplementary measurements were performed. See the
NC SAM User Manual for examples of additional measurements that may be relevant.
NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area).
PROJECT/SITE INFORMATION:
1. Project name (if any): Kerwin Circle Station
3. Applicant/owner name: Duke Energy Carolinas
5. County: Forsyth
7. River basin: Roanoke
2. Date of evaluation: 2/24/2020
Assessor name/organization: KJS - Dewber
Nearest named water body
on USGS 7.5-minute quad: Belews Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.137129,-80.115522
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SA28 10. Length of assessment reach evaluated (feet): 100
11. Channel depth from bed (in riffle, if present) to top of bank (feet): <8in ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 4 13. Is assessment reach a swamp steam? ❑Yes ❑No
14. Feature type: ®Perennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑ Mountains (M) ® Piedmont (P) ❑ Inner Coastal Plain (1) ❑ Outer Coastal Plain (0)
16. Estimated geomorphic ❑A ®B
valley shape (skip for
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mil) ❑Size 3 (0.5 to < 5 mil) ❑Size 4 (>_ 5 mil)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑l ❑II ❑III ❑IV ❑V)
❑Essential Fish Habitat ❑Primary Nursery Area ❑ High Quality Waters/Outstanding Resource Waters
❑Publicly owned property ❑NCDWR Riparian buffer rule in effect ❑Nutrient Sensitive Waters
❑Anadromous fish ❑303(d) List ❑CAMA Area of Environmental Concern (AEC)
❑Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Designated Critical Habitat (list species)
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? ❑Yes ®No
1. Channel Water— assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
®A Water throughout assessment reach.
❑B No flow, water in pools only.
❑C No water in assessment reach.
2. Evidence of Flow Restriction — assessment reach metric
❑A At least 10% of assessment reach in -stream habitat or riffle -pool sequence is severely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams,
beaver dams).
®B Not A
3. Feature Pattern — assessment reach metric
❑A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert).
®B Not
4. Feature Longitudinal Profile — assessment reach metric
❑A Majority of assessment reach has a substantially altered stream profile (examples: channel down -cutting, existing damming, over
widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these
disturbances).
®B Not A
5. Signs of Active Instability — assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
❑A < 10% of channel unstable
®B 10 to 25% of channel unstable
❑C > 25% of channel unstable
6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
®A ®A
Little or no evidence of conditions that adversely affect reference interaction
❑B ❑B
Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky
or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
❑C ❑C
Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption
of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive
mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an
interstream divide
Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
❑B Excessive sedimentation (burying of stream features or intertidal zone)
❑C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
❑D Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes/Sketch"
section.
❑F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
❑H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc)
❑1 Other: (explain in "Notes/Sketch" section)
®J Little to no stressors
8. Recent Weather — watershed metric (skip for Tidal Marsh Streams)
For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought.
❑A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
❑B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
®C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types — assessment reach metric
10a. ❑Yes ❑No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
❑A Multiple aquatic macrophytes and aquatic mosses F, W ❑F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F E ❑G Submerged aquatic vegetation
®B Multiple sticks and/or leaf packs and/or emergent o Y ❑H Low -tide refugia (pools)
vegetation Y rC ❑I Sand bottom
®C Multiple snags and logs (including lap trees) r ❑J 5% vertical bank along the marsh
®D 5% undercut banks and/or root mats and/or roots ❑K Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate —assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. ®Yes ❑No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es).
®A Riffle -run section (evaluate 11c)
❑B Pool -glide section (evaluate 11d)
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach — whether or not submerged. Check
at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare
(R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) _ > 40-70%, Predominant (P) _ > 70%. Cumulative percentages
should not exceed 100% for each assessment reach.
NP R C A P
❑ ® ❑ ❑ ❑ Bedrock/saprolite
❑ ® ❑ ❑ ❑ Boulder (256 — 4096 mm)
❑ ❑ ® ❑ ❑ Cobble (64 — 256 mm)
❑ ❑ ® ❑ ❑ Gravel (2 — 64 mm)
❑ ® ❑ ❑ ❑ Sand (.062 — 2 mm)
❑ ® ❑ ❑ ❑ Silt/clay (< 0.062 mm)
® ❑ ❑ ❑ ❑ Detritus
❑ ® ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes ❑No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12
Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual?
If No, select one of the following reasons and skip to Metric 13. ❑No Water ❑Other:
12b. ®Yes ❑No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that
apply. If No, skip to Metric 13.
1 >1 Numbers over columns refer to "individuals" for Size 1 and 2 streams and "taxa" for Size 3 and 4 streams.
❑ ❑Adult frogs
❑ ❑Aquatic reptiles
❑ ❑Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ❑Beetles
❑ ❑Caddisfly larvae (T)
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans
❑ ❑Mayfly larvae (E)
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
® ❑ Sala manders/tad poles
❑ ❑Snails
❑ ❑Stonefly larvae (P)
❑ ❑Tipulid larvae
❑ ❑Worms/leeches
13. Streamside Area Ground Surface Condition — streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff.
LB RB
®A ®A Little or no alteration to water storage capacity over a majority of the streamside area
❑B ❑B Moderate alteration to water storage capacity over a majority of the streamside area
❑C ❑C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction,
livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage — streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
❑A ❑A Majority of streamside area with depressions able to pond water >_ 6 inches deep
❑B ®B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
®C ❑C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence — streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal
wetted perimeter of assessment reach.
LB RB
❑Y ❑Y Are wetlands present in the streamside area?
ON ON
16. Baseflow Contributors — assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
®A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction passing flow during low -flow periods within the assessment area (beaver dam, leaky dam, bottom -release dam, weir)
®D Evidence of bank seepage or sweating (iron in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
❑F None of the above
17. Baseflow Detractors — assessment area metric (skip for Tidal Marsh Streams)
Check all that apply.
❑A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation)
❑B Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
❑C Urban stream (>_ 24% impervious surface for watershed)
❑D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
OF None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
®A Stream shading is appropriate for stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
19. Buffer Width — streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top of bank out
to the first break.
Vegetated Wooded
LB RB LB RB
❑A ®A ❑A ®A >_ 100 feet wide or extends to the edge of the watershed
❑B ❑B ❑B ❑B From 50 to < 100 feet wide
®C ❑C ®C ❑C From 30 to < 50 feet wide
❑D ❑D ❑D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
®A ®A Mature forest
❑B ❑B Non -mature woody vegetation or modified vegetation structure
❑C ❑C Herbaceous vegetation with or without a strip of trees < 10 feet wide
❑D ❑D Maintained shrubs
❑E ❑E Little or no vegetation
21. Buffer Stressors — streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is
within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22:
Abuts < 30 feet 30-50 feet
LB RB LB RB LB RB
❑A ❑A ❑A ❑A ❑A ❑A Row crops
❑B ❑B ❑B ❑B ❑B ❑B Maintained turf
❑C ❑C ❑C ❑C ❑C ❑C Pasture (no livestock)/commercial horticulture
❑D ❑D ❑D ❑D ❑D ❑D Pasture (active livestock use)
22. Stem Density — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB RB
®A ®A Medium to high stem density
❑B ❑B Low stem density
❑C ❑C No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer — streamside area metric (skip for Tidal Marsh Streams)
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide.
LB RB
®A ®A The total length of buffer breaks is < 25 percent.
❑B ❑B The total length of buffer breaks is between 25 and 50 percent.
❑C ❑C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — streamside area metric (skip for Tidal Marsh Streams)
Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to
assessment reach habitat.
LB RB
®A ®A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species,
with non-native invasive species absent or sparse.
❑B ❑B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
❑C ❑C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity — assessment reach metric (skip for all Coastal Plain streams)
25a. ❑Yes ®No Was conductivity measurement recorded?
If No, select one of the following reasons. ❑No Water ❑Other:
25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter).
❑A < 46 ❑B 46 to < 67 ❑C 67 to < 79 ❑D 79 to < 230 ❑E >_ 230
Notes/Sketch
Draft NIC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Kerwin Circle Station Date of Assessment 2/24/2020
Stream Category Pb1 Assessor Name/Organization KJS - Dewberry
Notes of Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
NO
Additional stream information/supplementary measurements included (Y/N)
NO
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
Perennial
USACE/ NCDWR
Function Class Rating Summary
All Streams Intermittent
(1) Hydrology
HIGH
(2) Baseflow
HIGH
(2) Flood Flow
HIGH
(3) Streamside Area Attenuation
HIGH
(4) Floodplain Access
HIGH
(4) Wooded Riparian Buffer
HIGH
(4) Microtopography
NA
(3) Stream Stability
MEDIUM
(4) Channel Stability
MEDIUM
(4) Sediment Transport
LOW
(4) Stream Geomorphology
HIGH
(2) Stream/Intertidal Zone Interaction
NA
(2) Longitudinal Tidal Flow
NA
(2) Tidal Marsh Stream Stability
NA
(3) Tidal Marsh Channel Stability
NA
(3) Tidal Marsh Stream Geomorphology
NA
(1) Water Quality
MEDIUM
(2) Baseflow
HIGH
(2) Streamside Area Vegetation
HIGH
(3) Upland Pollutant Filtration
HIGH
(3) Thermoregulation
HIGH
(2) Indicators of Stressors
NO
(2) Aquatic Life Tolerance
LOW
(2) Intertidal Zone Filtration
NA
(1) Habitat
HIGH
(2) In -stream Habitat
HIGH
(3) Baseflow
HIGH
(3) Substrate
HIGH
(3) Stream Stability
MEDIUM
(3) In -stream Habitat
HIGH
(2) Stream -side Habitat
HIGH
(3) Stream -side Habitat
HIGH
(3) Thermoregulation
HIGH
(2) Tidal Marsh In -stream Habitat
NA
(3) Flow Restriction
NA
(3) Tidal Marsh Stream Stability
NA
(4) Tidal Marsh Channel Stability
NA
(4) Tidal Marsh Stream Geomorphology
NA
(3) Tidal Marsh In -stream Habitat
NA
(2) Intertidal Zone
NA
Overall
HIGH
NC SAM FIELD ASSESSMENT RESULTS
user rvianuai version d.,i
USACE AID #: NCDWR #:
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle,
and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and
number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions
and explanations of requested information. Record in the "Notes/Sketch" section if supplementary measurements were performed. See the
NC SAM User Manual for examples of additional measurements that may be relevant.
NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area).
PROJECT/SITE INFORMATION:
1. Project name (if any): Kerwin Circle Station
3. Applicant/owner name: Duke Energy Carolinas
5. County: Forsyth
7. River basin: Roanoke
2. Date of evaluation: 2/24/2020
Assessor name/organization: KJS - Dewber
Nearest named water body
on USGS 7.5-minute quad: Belews Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.138475,-80.115911
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SA7 10. Length of assessment reach evaluated (feet): 100
11. Channel depth from bed (in riffle, if present) to top of bank (feet): <8in ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 4 13. Is assessment reach a swamp steam? ❑Yes ❑No
14. Feature type: ®Perennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑ Mountains (M) ® Piedmont (P) ❑ Inner Coastal Plain (1) ❑ Outer Coastal Plain (0)
16. Estimated geomorphic ®A El
valley shape (skip for
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mil) ❑Size 3 (0.5 to < 5 mil) ❑Size 4 (>_ 5 mil)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑l ❑II ❑III ❑IV ❑V)
❑Essential Fish Habitat ❑Primary Nursery Area ❑ High Quality Waters/Outstanding Resource Waters
❑Publicly owned property ❑NCDWR Riparian buffer rule in effect ❑Nutrient Sensitive Waters
❑Anadromous fish ❑303(d) List ❑CAMA Area of Environmental Concern (AEC)
❑Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Designated Critical Habitat (list species)
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? ❑Yes ®No
1. Channel Water— assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
®A Water throughout assessment reach.
❑B No flow, water in pools only.
❑C No water in assessment reach.
2. Evidence of Flow Restriction — assessment reach metric
❑A At least 10% of assessment reach in -stream habitat or riffle -pool sequence is severely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams,
beaver dams).
®B Not A
3. Feature Pattern — assessment reach metric
❑A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert).
®B Not
4. Feature Longitudinal Profile — assessment reach metric
❑A Majority of assessment reach has a substantially altered stream profile (examples: channel down -cutting, existing damming, over
widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these
disturbances).
®B Not A
5. Signs of Active Instability — assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
❑A < 10% of channel unstable
®B 10 to 25% of channel unstable
❑C > 25% of channel unstable
6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
®A ®A
Little or no evidence of conditions that adversely affect reference interaction
❑B ❑B
Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky
or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
❑C ❑C
Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption
of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive
mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an
interstream divide
Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
❑B Excessive sedimentation (burying of stream features or intertidal zone)
❑C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
❑D Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes/Sketch"
section.
❑F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
❑H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc)
❑1 Other: (explain in "Notes/Sketch" section)
®J Little to no stressors
8. Recent Weather — watershed metric (skip for Tidal Marsh Streams)
For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought.
❑A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
❑B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
®C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types — assessment reach metric
10a. ❑Yes ❑No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
❑A Multiple aquatic macrophytes and aquatic mosses F, W ❑F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F E ❑G Submerged aquatic vegetation
®B Multiple sticks and/or leaf packs and/or emergent o Y ❑H Low -tide refugia (pools)
vegetation Y rC ❑I Sand bottom
®C Multiple snags and logs (including lap trees) r ❑J 5% vertical bank along the marsh
®D 5% undercut banks and/or root mats and/or roots ❑K Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate —assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. ®Yes ❑No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es).
®A Riffle -run section (evaluate 11c)
❑B Pool -glide section (evaluate 11d)
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach — whether or not submerged. Check
at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare
(R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) _ > 40-70%, Predominant (P) _ > 70%. Cumulative percentages
should not exceed 100% for each assessment reach.
NP R C A P
® ❑ ❑ ❑ ❑ Bedrock/saprolite
® ❑ ❑ ❑ ❑ Boulder (256 — 4096 mm)
® ❑ ❑ ❑ ❑ Cobble (64 — 256 mm)
❑ ❑ ® ❑ ❑ Gravel (2 — 64 mm)
❑ ❑ ® ❑ ❑ Sand (.062 — 2 mm)
❑ ❑ ® ❑ ❑ Silt/clay (< 0.062 mm)
❑ ® ❑ ❑ ❑ Detritus
® ❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes ❑No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12
Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual?
If No, select one of the following reasons and skip to Metric 13. ❑No Water ❑Other:
12b. ®Yes ❑No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that
apply. If No, skip to Metric 13.
1 >1 Numbers over columns refer to "individuals" for Size 1 and 2 streams and "taxa" for Size 3 and 4 streams.
❑ ❑Adult frogs
❑ ❑Aquatic reptiles
❑ ❑Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ❑Beetles
❑ ❑Caddisfly larvae (T)
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans
❑ ❑Mayfly larvae (E)
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
® ❑ Sala manders/tad poles
❑ ❑Snails
❑ ❑Stonefly larvae (P)
❑ ❑Tipulid larvae
❑ ❑Worms/leeches
13. Streamside Area Ground Surface Condition — streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff.
LB RB
®A ®A Little or no alteration to water storage capacity over a majority of the streamside area
❑B ❑B Moderate alteration to water storage capacity over a majority of the streamside area
❑C ❑C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction,
livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage — streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
❑A ❑A Majority of streamside area with depressions able to pond water >_ 6 inches deep
❑B ®B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
®C ❑C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence — streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal
wetted perimeter of assessment reach.
LB RB
®Y ®Y Are wetlands present in the streamside area?
❑N ❑N
16. Baseflow Contributors — assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
®A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction passing flow during low -flow periods within the assessment area (beaver dam, leaky dam, bottom -release dam, weir)
®D Evidence of bank seepage or sweating (iron in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
❑F None of the above
17. Baseflow Detractors — assessment area metric (skip for Tidal Marsh Streams)
Check all that apply.
❑A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation)
❑B Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
❑C Urban stream (>_ 24% impervious surface for watershed)
❑D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
OF None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
®A Stream shading is appropriate for stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
19. Buffer Width — streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top of bank out
to the first break.
Vegetated Wooded
LB RB LB RB
❑A ®A ❑A ®A >_ 100 feet wide or extends to the edge of the watershed
®B ❑B ®B ❑B From 50 to < 100 feet wide
❑C ❑C ❑C ❑C From 30 to < 50 feet wide
❑D ❑D ❑D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
®A ®A Mature forest
❑B ❑B Non -mature woody vegetation or modified vegetation structure
❑C ❑C Herbaceous vegetation with or without a strip of trees < 10 feet wide
❑D ❑D Maintained shrubs
❑E ❑E Little or no vegetation
21. Buffer Stressors — streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is
within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22:
Abuts < 30 feet 30-50 feet
LB RB LB RB LB RB
❑A ❑A ❑A ❑A ❑A ❑A Row crops
❑B ❑B ❑B ❑B ❑B ❑B Maintained turf
❑C ❑C ❑C ❑C ❑C ❑C Pasture (no livestock)/commercial horticulture
❑D ❑D ❑D ❑D ❑D ❑D Pasture (active livestock use)
22. Stem Density — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB RB
®A ®A Medium to high stem density
❑B ❑B Low stem density
❑C ❑C No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer — streamside area metric (skip for Tidal Marsh Streams)
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide.
LB RB
®A ®A The total length of buffer breaks is < 25 percent.
❑B ❑B The total length of buffer breaks is between 25 and 50 percent.
❑C ❑C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — streamside area metric (skip for Tidal Marsh Streams)
Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to
assessment reach habitat.
LB RB
®A ®A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species,
with non-native invasive species absent or sparse.
❑B ❑B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
❑C ❑C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity — assessment reach metric (skip for all Coastal Plain streams)
25a. ❑Yes ®No Was conductivity measurement recorded?
If No, select one of the following reasons. ❑No Water ❑Other:
25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter).
❑A < 46 ❑B 46 to < 67 ❑C 67 to < 79 ❑D 79 to < 230 ❑E >_ 230
Notes/Sketch
Draft NIC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Kerwin Circle Station Date of Assessment 2/24/2020
Stream Category Pal Assessor Name/Organization KJS - Dewberry
Notes of Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
NO
Additional stream information/supplementary measurements included (Y/N)
NO
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
Perennial
USACE/ NCDWR
Function Class Rating Summary
All Streams Intermittent
(1) Hydrology
HIGH
(2) Baseflow
HIGH
(2) Flood Flow
HIGH
(3) Streamside Area Attenuation
HIGH
(4) Floodplain Access
HIGH
(4) Wooded Riparian Buffer
HIGH
(4) Microtopography
HIGH
(3) Stream Stability
MEDIUM
(4) Channel Stability
MEDIUM
(4) Sediment Transport
LOW
(4) Stream Geomorphology
HIGH
(2) Stream/Intertidal Zone Interaction
NA
(2) Longitudinal Tidal Flow
NA
(2) Tidal Marsh Stream Stability
NA
(3) Tidal Marsh Channel Stability
NA
(3) Tidal Marsh Stream Geomorphology
NA
(1) Water Quality
MEDIUM
(2) Baseflow
HIGH
(2) Streamside Area Vegetation
HIGH
(3) Upland Pollutant Filtration
HIGH
(3) Thermoregulation
HIGH
(2) Indicators of Stressors
NO
(2) Aquatic Life Tolerance
LOW
(2) Intertidal Zone Filtration
NA
(1) Habitat
HIGH
(2) In -stream Habitat
HIGH
(3) Baseflow
HIGH
(3) Substrate
HIGH
(3) Stream Stability
MEDIUM
(3) In -stream Habitat
HIGH
(2) Stream -side Habitat
HIGH
(3) Stream -side Habitat
HIGH
(3) Thermoregulation
HIGH
(2) Tidal Marsh In -stream Habitat
NA
(3) Flow Restriction
NA
(3) Tidal Marsh Stream Stability
NA
(4) Tidal Marsh Channel Stability
NA
(4) Tidal Marsh Stream Geomorphology
NA
(3) Tidal Marsh In -stream Habitat
NA
(2) Intertidal Zone
NA
Overall
HIGH
NC SAM FIELD ASSESSMENT RESULTS
user rvianuai version d.,i
USACE AID #: NCDWR #:
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle,
and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and
number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions
and explanations of requested information. Record in the "Notes/Sketch" section if supplementary measurements were performed. See the
NC SAM User Manual for examples of additional measurements that may be relevant.
NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area).
PROJECT/SITE INFORMATION:
1. Project name (if any): Kerwin Circle Station
3. Applicant/owner name: Duke Energy Carolinas
5. County: Forsyth
7. River basin: Roanoke
2. Date of evaluation: 2/24/2020
Assessor name/organization: K. Shumaker -
Nearest named water body
on USGS 7.5-minute quad: Belews Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.136879,-80.115422
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): S136 10. Length of assessment reach evaluated (feet): 50
11. Channel depth from bed (in riffle, if present) to top of bank (feet): <6in ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 3 13. Is assessment reach a swamp steam? ❑Yes ❑No
14. Feature type: ❑Perennial flow ®Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑ Mountains (M) ® Piedmont (P) ❑ Inner Coastal Plain (1) ❑ Outer Coastal Plain (0)
16. Estimated geomorphic ❑A ®B
valley shape (skip for
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mil) ❑Size 3 (0.5 to < 5 mil) ❑Size 4 (>_ 5 mil)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑l ❑II ❑III ❑IV ❑V)
❑Essential Fish Habitat ❑Primary Nursery Area ❑ High Quality Waters/Outstanding Resource Waters
❑Publicly owned property ❑NCDWR Riparian buffer rule in effect ❑Nutrient Sensitive Waters
❑Anadromous fish ❑303(d) List ❑CAMA Area of Environmental Concern (AEC)
❑Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Designated Critical Habitat (list species)
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? ❑Yes ®No
1. Channel Water— assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
®A Water throughout assessment reach.
❑B No flow, water in pools only.
❑C No water in assessment reach.
2. Evidence of Flow Restriction — assessment reach metric
❑A At least 10% of assessment reach in -stream habitat or riffle -pool sequence is severely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams,
beaver dams).
®B Not A
3. Feature Pattern — assessment reach metric
❑A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert).
®B Not
4. Feature Longitudinal Profile — assessment reach metric
❑A Majority of assessment reach has a substantially altered stream profile (examples: channel down -cutting, existing damming, over
widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these
disturbances).
®B Not A
5. Signs of Active Instability — assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
®A < 10% of channel unstable
❑B 10 to 25% of channel unstable
❑C > 25% of channel unstable
6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
®A ®A
Little or no evidence of conditions that adversely affect reference interaction
❑B ❑B
Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky
or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
❑C ❑C
Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption
of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive
mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an
interstream divide
Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
❑B Excessive sedimentation (burying of stream features or intertidal zone)
❑C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
❑D Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes/Sketch"
section.
❑F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
❑H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc)
❑1 Other: (explain in "Notes/Sketch" section)
®J Little to no stressors
8. Recent Weather — watershed metric (skip for Tidal Marsh Streams)
For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought.
❑A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
❑B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
®C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types — assessment reach metric
10a. ❑Yes ❑No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
❑A Multiple aquatic macrophytes and aquatic mosses F, W ❑F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F E ❑G Submerged aquatic vegetation
®B Multiple sticks and/or leaf packs and/or emergent o Y ❑H Low -tide refugia (pools)
vegetation Y rC ❑I Sand bottom
❑C Multiple snags and logs (including lap trees) r ❑J 5% vertical bank along the marsh
®D 5% undercut banks and/or root mats and/or roots ❑K Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate —assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. ❑Yes ❑No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es).
❑A Riffle -run section (evaluate 11c)
®B Pool -glide section (evaluate 11d)
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach — whether or not submerged. Check
at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare
(R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) _ > 40-70%, Predominant (P) _ > 70%. Cumulative percentages
should not exceed 100% for each assessment reach.
NP R C A P
❑ ❑ ❑ ❑ ❑ Bedrock/saprolite
❑ ❑ ❑ ❑ ❑ Boulder (256 — 4096 mm)
❑ ❑ ❑ ❑ ❑ Cobble (64 — 256 mm)
❑ ❑ ❑ ❑ ❑ Gravel (2 — 64 mm)
❑ ❑ ❑ ❑ ❑ Sand (.062 — 2 mm)
❑ ❑ ❑ ❑ ❑ Silt/clay (< 0.062 mm)
❑ ❑ ❑ ❑ ❑ Detritus
❑ ❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes ®No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12
Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual?
If No, select one of the following reasons and skip to Metric 13. ❑No Water ❑Other:
12b. ❑Yes ®No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that
apply. If No, skip to Metric 13.
1 >1 Numbers over columns refer to "individuals" for Size 1 and 2 streams and "taxa" for Size 3 and 4 streams.
❑ ❑Adult frogs
❑ ❑Aquatic reptiles
❑ ❑Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ❑Beetles
❑ ❑Caddisfly larvae (T)
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans
❑ ❑Mayfly larvae (E)
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
❑ ❑ Sala manders/tad poles
❑ ❑Snails
❑ ❑Stonefly larvae (P)
❑ ❑Tipulid larvae
❑ ❑Worms/leeches
13. Streamside Area Ground Surface Condition — streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff.
LB RB
®A ®A Little or no alteration to water storage capacity over a majority of the streamside area
❑B ❑B Moderate alteration to water storage capacity over a majority of the streamside area
❑C ❑C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction,
livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage — streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
❑A ❑A Majority of streamside area with depressions able to pond water >_ 6 inches deep
❑B ❑B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
®C ®C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence — streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal
wetted perimeter of assessment reach.
LB RB
❑Y ❑Y Are wetlands present in the streamside area?
ON ON
16. Baseflow Contributors — assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
®A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction passing flow during low -flow periods within the assessment area (beaver dam, leaky dam, bottom -release dam, weir)
❑D Evidence of bank seepage or sweating (iron in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
❑F None of the above
17. Baseflow Detractors — assessment area metric (skip for Tidal Marsh Streams)
Check all that apply.
❑A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation)
❑B Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
❑C Urban stream (>_ 24% impervious surface for watershed)
❑D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
OF None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
®A Stream shading is appropriate for stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
19. Buffer Width — streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top of bank out
to the first break.
Vegetated Wooded
LB RB LB RB
❑A ®A ❑A ®A >_ 100 feet wide or extends to the edge of the watershed
❑B ❑B ❑B ❑B From 50 to < 100 feet wide
❑C ❑C ❑C ❑C From 30 to < 50 feet wide
®D ❑D ®D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
®A ®A Mature forest
❑B ❑B Non -mature woody vegetation or modified vegetation structure
❑C ❑C Herbaceous vegetation with or without a strip of trees < 10 feet wide
❑D ❑D Maintained shrubs
❑E ❑E Little or no vegetation
21. Buffer Stressors — streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is
within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22:
Abuts < 30 feet 30-50 feet
LB RB LB RB LB RB
❑A ❑A ❑A ❑A ❑A ❑A Row crops
❑B ❑B ❑B ❑B ❑B ❑B Maintained turf
❑C ❑C ❑C ❑C ❑C ❑C Pasture (no livestock)/commercial horticulture
❑D ❑D ❑D ❑D ❑D ❑D Pasture (active livestock use)
22. Stem Density — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB RB
®A ®A Medium to high stem density
❑B ❑B Low stem density
❑C ❑C No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer — streamside area metric (skip for Tidal Marsh Streams)
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide.
LB RB
®A ®A The total length of buffer breaks is < 25 percent.
❑B ❑B The total length of buffer breaks is between 25 and 50 percent.
❑C ❑C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — streamside area metric (skip for Tidal Marsh Streams)
Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to
assessment reach habitat.
LB RB
❑A ®A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species,
with non-native invasive species absent or sparse.
®B ❑B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
❑C ❑C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity — assessment reach metric (skip for all Coastal Plain streams)
25a. ❑Yes ®No Was conductivity measurement recorded?
If No, select one of the following reasons. ❑No Water ❑Other:
25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter).
❑A < 46 ❑B 46 to < 67 ❑C 67 to < 79 ❑D 79 to < 230 ❑E >_ 230
Notes/Sketch
Draft NIC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Kerwin Circle Station Date of Assessment 2/24/2020
Stream Category Pb1 Assessor Name/Organization K. Shumaker-
Dewberry
Notes of Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
NO
Additional stream information/supplementary measurements included (Y/N)
NO
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
Intermittent
USACE/
NCDWR
Function Class Rating Summary
All Streams Intermittent
(1) Hydrology
HIGH
HIGH
(2) Baseflow
HIGH
HIGH
(2) Flood Flow
HIGH
HIGH
(3) Streamside Area Attenuation
HIGH
HIGH
(4) Floodplain Access
HIGH
HIGH
(4) Wooded Riparian Buffer
MEDIUM
MEDIUM
(4) Microtopography
NA
NA
(3) Stream Stability
HIGH
HIGH
(4) Channel Stability
HIGH
HIGH
(4) Sediment Transport
HIGH
HIGH
(4) Stream Geomorphology
HIGH
HIGH
(2) Stream/Intertidal Zone Interaction
NA
NA
(2) Longitudinal Tidal Flow
NA
NA
(2) Tidal Marsh Stream Stability
NA
NA
(3) Tidal Marsh Channel Stability
NA
NA
(3) Tidal Marsh Stream Geomorphology
NA
NA
(1) Water Quality
LOW
LOW
(2) Baseflow
HIGH
HIGH
(2) Streamside Area Vegetation
MEDIUM
MEDIUM
(3) Upland Pollutant Filtration
MEDIUM
MEDIUM
(3) Thermoregulation
HIGH
HIGH
(2) Indicators of Stressors
NO
NO
(2) Aquatic Life Tolerance
LOW
NA
(2) Intertidal Zone Filtration
NA
NA
(1) Habitat
HIGH
HIGH
(2) In -stream Habitat
HIGH
HIGH
(3) Baseflow
HIGH
HIGH
(3) Substrate
HIGH
HIGH
(3) Stream Stability
HIGH
HIGH
(3) In -stream Habitat
HIGH
HIGH
(2) Stream -side Habitat
HIGH
HIGH
(3) Stream -side Habitat
HIGH
HIGH
(3) Thermoregulation
HIGH
HIGH
(2) Tidal Marsh In -stream Habitat
NA
NA
(3) Flow Restriction
NA
NA
(3) Tidal Marsh Stream Stability
NA
NA
(4) Tidal Marsh Channel Stability
NA
NA
(4) Tidal Marsh Stream Geomorphology
NA
NA
(3) Tidal Marsh In -stream Habitat
NA
NA
(2) Intertidal Zone
NA
NA
Overall
HIGH
HIGH
NC SAM FIELD ASSESSMENT RESULTS
user rvianuai version d.,i
USACE AID #: NCDWR #:
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle,
and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and
number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions
and explanations of requested information. Record in the "Notes/Sketch" section if supplementary measurements were performed. See the
NC SAM User Manual for examples of additional measurements that may be relevant.
NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area).
PROJECT/SITE INFORMATION:
1. Project name (if any): Kerwin Circle Station
3. Applicant/owner name: Duke Energy Carolinas
5. County: Forsyth
7. River basin: Roanoke
2. Date of evaluation: 2/25/2020
Assessor name/organization: K. Shumaker -
Nearest named water body
on USGS 7.5-minute quad: Belews Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.138611,-80.115494
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SC10 10. Length of assessment reach evaluated (feet): 100
11. Channel depth from bed (in riffle, if present) to top of bank (feet): <6in ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 4 13. Is assessment reach a swamp steam? ❑Yes ❑No
14. Feature type: ®Perennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑ Mountains (M) ® Piedmont (P) ❑ Inner Coastal Plain (1) ❑ Outer Coastal Plain (0)
16. Estimated geomorphic ❑A ®B
valley shape (skip for
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mil) ❑Size 3 (0.5 to < 5 mil) ❑Size 4 (>_ 5 mil)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑l ❑II ❑III ❑IV ❑V)
❑Essential Fish Habitat ❑Primary Nursery Area ❑ High Quality Waters/Outstanding Resource Waters
❑Publicly owned property ❑NCDWR Riparian buffer rule in effect ❑Nutrient Sensitive Waters
❑Anadromous fish ❑303(d) List ❑CAMA Area of Environmental Concern (AEC)
❑Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Designated Critical Habitat (list species)
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? ❑Yes ®No
1. Channel Water— assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
®A Water throughout assessment reach.
❑B No flow, water in pools only.
❑C No water in assessment reach.
2. Evidence of Flow Restriction — assessment reach metric
❑A At least 10% of assessment reach in -stream habitat or riffle -pool sequence is severely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams,
beaver dams).
®B Not A
3. Feature Pattern — assessment reach metric
❑A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert).
®B Not
4. Feature Longitudinal Profile — assessment reach metric
❑A Majority of assessment reach has a substantially altered stream profile (examples: channel down -cutting, existing damming, over
widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these
disturbances).
®B Not A
5. Signs of Active Instability — assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
❑A < 10% of channel unstable
®B 10 to 25% of channel unstable
❑C > 25% of channel unstable
6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
®A ®A
Little or no evidence of conditions that adversely affect reference interaction
❑B ❑B
Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky
or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
❑C ❑C
Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption
of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive
mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an
interstream divide
Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
❑B Excessive sedimentation (burying of stream features or intertidal zone)
❑C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
❑D Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes/Sketch"
section.
❑F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
❑H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc)
❑1 Other: (explain in "Notes/Sketch" section)
®J Little to no stressors
8. Recent Weather — watershed metric (skip for Tidal Marsh Streams)
For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought.
❑A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
❑B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
®C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types — assessment reach metric
10a. ❑Yes ❑No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
❑A Multiple aquatic macrophytes and aquatic mosses F, W ❑F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F E ❑G Submerged aquatic vegetation
®B Multiple sticks and/or leaf packs and/or emergent o Y ❑H Low -tide refugia (pools)
vegetation Y rC ❑I Sand bottom
❑C Multiple snags and logs (including lap trees) r ❑J 5% vertical bank along the marsh
®D 5% undercut banks and/or root mats and/or roots ❑K Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate —assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. ❑Yes ®No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es).
®A Riffle -run section (evaluate 11c)
❑B Pool -glide section (evaluate 11d)
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach — whether or not submerged. Check
at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare
(R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) _ > 40-70%, Predominant (P) _ > 70%. Cumulative percentages
should not exceed 100% for each assessment reach.
NP R C A P
® ❑ ❑ ❑ ❑ Bedrock/saprolite
® ❑ ❑ ❑ ❑ Boulder (256 — 4096 mm)
® ❑ ❑ ❑ ❑ Cobble (64 — 256 mm)
❑ ❑ ® ❑ ❑ Gravel (2 — 64 mm)
❑ ® ❑ ❑ ❑ Sand (.062 — 2 mm)
❑ ❑ ❑ ® ❑ Silt/clay (< 0.062 mm)
® ❑ ❑ ❑ ❑ Detritus
® ❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes ❑No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12
Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual?
If No, select one of the following reasons and skip to Metric 13. ❑No Water ❑Other:
12b. ®Yes ❑No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that
apply. If No, skip to Metric 13.
1 >1 Numbers over columns refer to "individuals" for Size 1 and 2 streams and "taxa" for Size 3 and 4 streams.
❑ ❑Adult frogs
❑ ❑Aquatic reptiles
❑ ❑Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ❑Beetles
❑ ❑Caddisfly larvae (T)
❑ ❑Asian clam (Corbicula)
® ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans
❑ ❑Mayfly larvae (E)
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
❑ ❑ Sala manders/tad poles
❑ ❑Snails
❑ ❑Stonefly larvae (P)
❑ ❑Tipulid larvae
❑ ❑Worms/leeches
13. Streamside Area Ground Surface Condition — streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff.
LB RB
❑A ❑A Little or no alteration to water storage capacity over a majority of the streamside area
❑B ❑B Moderate alteration to water storage capacity over a majority of the streamside area
®C ®C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction,
livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage — streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
❑A ❑A Majority of streamside area with depressions able to pond water >_ 6 inches deep
❑B ❑B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
®C ®C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence — streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal
wetted perimeter of assessment reach.
LB RB
®Y ®Y Are wetlands present in the streamside area?
❑N ❑N
16. Baseflow Contributors — assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
®A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction passing flow during low -flow periods within the assessment area (beaver dam, leaky dam, bottom -release dam, weir)
❑D Evidence of bank seepage or sweating (iron in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
❑F None of the above
17. Baseflow Detractors — assessment area metric (skip for Tidal Marsh Streams)
Check all that apply.
❑A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation)
❑B Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
❑C Urban stream (>_ 24% impervious surface for watershed)
❑D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
OF None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
®A Stream shading is appropriate for stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
19. Buffer Width — streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top of bank out
to the first break.
Vegetated Wooded
LB RB LB RB
®A ®A ®A ®A >_ 100 feet wide or extends to the edge of the watershed
❑B ❑B ❑B ❑B From 50 to < 100 feet wide
❑C ❑C ❑C ❑C From 30 to < 50 feet wide
❑D ❑D ❑D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
®A ®A Mature forest
❑B ❑B Non -mature woody vegetation or modified vegetation structure
❑C ❑C Herbaceous vegetation with or without a strip of trees < 10 feet wide
❑D ❑D Maintained shrubs
❑E ❑E Little or no vegetation
21. Buffer Stressors — streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is
within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22:
Abuts < 30 feet 30-50 feet
LB RB LB RB LB RB
❑A ❑A ❑A ❑A ❑A ❑A Row crops
❑B ❑B ❑B ❑B ❑B ❑B Maintained turf
❑C ❑C ❑C ❑C ❑C ❑C Pasture (no livestock)/commercial horticulture
❑D ❑D ❑D ❑D ❑D ❑D Pasture (active livestock use)
22. Stem Density — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB RB
®A ®A Medium to high stem density
❑B ❑B Low stem density
❑C ❑C No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer — streamside area metric (skip for Tidal Marsh Streams)
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide.
LB RB
®A ®A The total length of buffer breaks is < 25 percent.
❑B ❑B The total length of buffer breaks is between 25 and 50 percent.
❑C ❑C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — streamside area metric (skip for Tidal Marsh Streams)
Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to
assessment reach habitat.
LB RB
®A ®A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species,
with non-native invasive species absent or sparse.
❑B ❑B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
❑C ❑C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity — assessment reach metric (skip for all Coastal Plain streams)
25a. ❑Yes ®No Was conductivity measurement recorded?
If No, select one of the following reasons. ❑No Water ❑Other:
25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter).
❑A < 46 ❑B 46 to < 67 ❑C 67 to < 79 ❑D 79 to < 230 ❑E >_ 230
Notes/Sketch
Draft NIC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Kerwin Circle Station Date of Assessment 2/25/2020
Stream Category Pb1 Assessor Name/Organization K. Shumaker- Dewberry
Notes of Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
NO
Additional stream information/supplementary measurements included (Y/N)
NO
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
Perennial
USACE/ NCDWR
Function Class Rating Summary
All Streams Intermittent
(1) Hydrology
HIGH
(2) Baseflow
HIGH
(2) Flood Flow
HIGH
(3) Streamside Area Attenuation
HIGH
(4) Floodplain Access
HIGH
(4) Wooded Riparian Buffer
HIGH
(4) Microtopography
NA
(3) Stream Stability
MEDIUM
(4) Channel Stability
MEDIUM
(4) Sediment Transport
LOW
(4) Stream Geomorphology
HIGH
(2) Stream/Intertidal Zone Interaction
NA
(2) Longitudinal Tidal Flow
NA
(2) Tidal Marsh Stream Stability
NA
(3) Tidal Marsh Channel Stability
NA
(3) Tidal Marsh Stream Geomorphology
NA
(1) Water Quality
MEDIUM
(2) Baseflow
HIGH
(2) Streamside Area Vegetation
HIGH
(3) Upland Pollutant Filtration
HIGH
(3) Thermoregulation
HIGH
(2) Indicators of Stressors
NO
(2) Aquatic Life Tolerance
LOW
(2) Intertidal Zone Filtration
NA
(1) Habitat
MEDIUM
(2) In -stream Habitat
LOW
(3) Baseflow
HIGH
(3) Substrate
LOW
(3) Stream Stability
MEDIUM
(3) In -stream Habitat
MEDIUM
(2) Stream -side Habitat
HIGH
(3) Stream -side Habitat
HIGH
(3) Thermoregulation
HIGH
(2) Tidal Marsh In -stream Habitat
NA
(3) Flow Restriction
NA
(3) Tidal Marsh Stream Stability
NA
(4) Tidal Marsh Channel Stability
NA
(4) Tidal Marsh Stream Geomorphology
NA
(3) Tidal Marsh In -stream Habitat
NA
(2) Intertidal Zone
NA
Overall
MEDIUM
NC SAM FIELD ASSESSMENT RESULTS
user rvianuai version d.,i
USACE AID #: NCDWR #:
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic quadrangle,
and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same property, identify and
number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User Manual for detailed descriptions
and explanations of requested information. Record in the "Notes/Sketch" section if supplementary measurements were performed. See the
NC SAM User Manual for examples of additional measurements that may be relevant.
NOTE EVIDENCE OF STRESSORS AFFECTING THE ASSESSMENT AREA (do not need to be within the assessment area).
PROJECT/SITE INFORMATION:
1. Project name (if any): Kerwin Circle Station
3. Applicant/owner name: Duke Energy Carolinas
5. County: Forsyth
7. River basin: Roanoke
2. Date of evaluation: 2/25/2020
Assessor name/organization: K. Shumaker -
Nearest named water body
on USGS 7.5-minute quad: Belews Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): 36.138547,-80.114817
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SD1 10. Length of assessment reach evaluated (feet): 15
11. Channel depth from bed (in riffle, if present) to top of bank (feet): <3in ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 2.5 13. Is assessment reach a swamp steam? ❑Yes ❑No
14. Feature type: ❑Perennial flow ®Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑ Mountains (M) ® Piedmont (P) ❑ Inner Coastal Plain (1) ❑ Outer Coastal Plain (0)
16. Estimated geomorphic ❑A ®B
valley shape (skip for
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mil) ❑Size 3 (0.5 to < 5 mil) ❑Size 4 (>_ 5 mil)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? ®Yes ❑No If Yes, check all that apply to the assessment area.
❑Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑l ❑II ❑III ❑IV ❑V)
❑Essential Fish Habitat ❑Primary Nursery Area ❑ High Quality Waters/Outstanding Resource Waters
❑Publicly owned property ❑NCDWR Riparian buffer rule in effect ❑Nutrient Sensitive Waters
❑Anadromous fish ❑303(d) List ❑CAMA Area of Environmental Concern (AEC)
❑Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Designated Critical Habitat (list species)
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? ❑Yes ❑No
1. Channel Water— assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
®A Water throughout assessment reach.
❑B No flow, water in pools only.
❑C No water in assessment reach.
2. Evidence of Flow Restriction — assessment reach metric
❑A At least 10% of assessment reach in -stream habitat or riffle -pool sequence is severely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impoundment on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates, debris jams,
beaver dams).
®B Not A
3. Feature Pattern — assessment reach metric
❑A A majority of the assessment reach has altered pattern (examples: straightening, modification above or below culvert).
®B Not
4. Feature Longitudinal Profile — assessment reach metric
❑A Majority of assessment reach has a substantially altered stream profile (examples: channel down -cutting, existing damming, over
widening, active aggradation, dredging, and excavation where appropriate channel profile has not reformed from any of these
disturbances).
®B Not A
5. Signs of Active Instability — assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
®A < 10% of channel unstable
❑B 10 to 25% of channel unstable
❑C > 25% of channel unstable
6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
®A ®A
Little or no evidence of conditions that adversely affect reference interaction
❑B ❑B
Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area, leaky
or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
❑C ❑C
Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision, disruption
of flood flows through streamside area] or too much floodplain/intertidal zone access [examples: impoundments, intensive
mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a man-made feature on an
interstream divide
Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
❑B Excessive sedimentation (burying of stream features or intertidal zone)
❑C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
❑D Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes/Sketch"
section.
❑F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
❑H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc)
❑1 Other: (explain in "Notes/Sketch" section)
®J Little to no stressors
8. Recent Weather — watershed metric (skip for Tidal Marsh Streams)
For Size 1 or 2 streams, D1 drought or higher is considered a drought; for Size 3 or 4 streams, D2 drought or higher is considered a drought.
❑A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
❑B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
®C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types — assessment reach metric
10a. ❑Yes ❑No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for Size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
❑A Multiple aquatic macrophytes and aquatic mosses F, W ❑F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F E ❑G Submerged aquatic vegetation
®B Multiple sticks and/or leaf packs and/or emergent o Y ❑H Low -tide refugia (pools)
vegetation Y rC ❑I Sand bottom
❑C Multiple snags and logs (including lap trees) r ❑J 5% vertical bank along the marsh
❑D 5% undercut banks and/or root mats and/or roots ❑K Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate —assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. ❑Yes ®No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es).
®A Riffle -run section (evaluate 11c)
❑B Pool -glide section (evaluate 11d)
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffle sections, check all that occur below the normal wetted perimeter of the assessment reach — whether or not submerged. Check
at least one box in each row (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams). Not Present (NP) = absent, Rare
(R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) _ > 40-70%, Predominant (P) _ > 70%. Cumulative percentages
should not exceed 100% for each assessment reach.
NP R C A P
® ❑ ❑ ❑ ❑ Bedrock/saprolite
® ❑ ❑ ❑ ❑ Boulder (256 — 4096 mm)
❑ ® ❑ ❑ ❑ Cobble (64 — 256 mm)
® ❑ ❑ ❑ ❑ Gravel (2 — 64 mm)
® ❑ ❑ ❑ ❑ Sand (.062 — 2 mm)
❑ ❑ ❑ ® ❑ Silt/clay (< 0.062 mm)
® ❑ ❑ ❑ ❑ Detritus
® ❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes ❑No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12
Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual?
If No, select one of the following reasons and skip to Metric 13. ❑No Water ❑Other:
12b. ❑Yes ®No Are aquatic organisms present in the assessment reach (look in riffles, pools, then snags)? If Yes, check all that
apply. If No, skip to Metric 13.
1 >1 Numbers over columns refer to "individuals" for Size 1 and 2 streams and "taxa" for Size 3 and 4 streams.
❑ ❑Adult frogs
❑ ❑Aquatic reptiles
❑ ❑Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ❑Beetles
❑ ❑Caddisfly larvae (T)
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans
❑ ❑Mayfly larvae (E)
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
❑ ❑ Sala manders/tad poles
❑ ❑Snails
❑ ❑Stonefly larvae (P)
❑ ❑Tipulid larvae
❑ ❑Worms/leeches
13. Streamside Area Ground Surface Condition — streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and upland runoff.
LB RB
®A ®A Little or no alteration to water storage capacity over a majority of the streamside area
❑B ❑B Moderate alteration to water storage capacity over a majority of the streamside area
❑C ❑C Severe alteration to water storage capacity over a majority of the streamside area (examples: ditches, fill, soil compaction,
livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage — streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
❑A ❑A Majority of streamside area with depressions able to pond water >_ 6 inches deep
❑B ❑B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
®C ®C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence — streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the normal
wetted perimeter of assessment reach.
LB RB
❑Y ❑Y Are wetlands present in the streamside area?
ON ON
16. Baseflow Contributors — assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
❑A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction passing flow during low -flow periods within the assessment area (beaver dam, leaky dam, bottom -release dam, weir)
®D Evidence of bank seepage or sweating (iron in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
❑F None of the above
17. Baseflow Detractors — assessment area metric (skip for Tidal Marsh Streams)
Check all that apply.
❑A Evidence of substantial water withdrawals from the assessment reach (includes areas excavated for pump installation)
❑B Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
❑C Urban stream (>_ 24% impervious surface for watershed)
❑D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
OF None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
®A Stream shading is appropriate for stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
19. Buffer Width — streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top of bank out
to the first break.
Vegetated Wooded
LB RB LB RB
®A ®A ®A ®A >_ 100 feet wide or extends to the edge of the watershed
❑B ❑B ❑B ❑B From 50 to < 100 feet wide
❑C ❑C ❑C ❑C From 30 to < 50 feet wide
❑D ❑D ❑D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
®A ®A Mature forest
❑B ❑B Non -mature woody vegetation or modified vegetation structure
❑C ❑C Herbaceous vegetation with or without a strip of trees < 10 feet wide
❑D ❑D Maintained shrubs
❑E ❑E Little or no vegetation
21. Buffer Stressors — streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but is
within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22:
Abuts < 30 feet 30-50 feet
LB RB LB RB LB RB
❑A ❑A ❑A ❑A ❑A ❑A Row crops
❑B ❑B ❑B ❑B ❑B ❑B Maintained turf
❑C ❑C ❑C ❑C ❑C ❑C Pasture (no livestock)/commercial horticulture
❑D ❑D ❑D ❑D ❑D ❑D Pasture (active livestock use)
22. Stem Density — streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB RB
®A ®A Medium to high stem density
❑B ❑B Low stem density
❑C ❑C No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer — streamside area metric (skip for Tidal Marsh Streams)
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10 feet wide.
LB RB
®A ®A The total length of buffer breaks is < 25 percent.
❑B ❑B The total length of buffer breaks is between 25 and 50 percent.
❑C ❑C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — streamside area metric (skip for Tidal Marsh Streams)
Evaluate the dominant vegetation within 100 feet of each bank or to the edge of the watershed (whichever comes first) as it contributes to
assessment reach habitat.
LB RB
®A ®A Vegetation is close to undisturbed in species present and their proportions. Lower strata composed of native species,
with non-native invasive species absent or sparse.
❑B ❑B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
❑C ❑C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity — assessment reach metric (skip for all Coastal Plain streams)
25a. ❑Yes ®No Was conductivity measurement recorded?
If No, select one of the following reasons. ❑No Water ❑Other:
25b. Check the box corresponding to the conductivity measurement (units of microsiemens per centimeter).
❑A < 46 ❑B 46 to < 67 ❑C 67 to < 79 ❑D 79 to < 230 ❑E >_ 230
Notes/Sketch
Draft NIC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Kerwin Circle Station Date of Assessment 2/25/2020
Stream Category Pb1 Assessor Name/Organization K. Shumaker-
Dewberry
Notes of Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
NO
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
Intermittent
USACE/
NCDWR
Function Class Rating Summary
All Streams Intermittent
(1) Hydrology
HIGH
HIGH
(2) Baseflow
HIGH
HIGH
(2) Flood Flow
HIGH
HIGH
(3) Streamside Area Attenuation
HIGH
HIGH
(4) Floodplain Access
HIGH
HIGH
(4) Wooded Riparian Buffer
HIGH
HIGH
(4) Microtopography
NA
NA
(3) Stream Stability
HIGH
HIGH
(4) Channel Stability
HIGH
HIGH
(4) Sediment Transport
LOW
LOW
(4) Stream Geomorphology
HIGH
HIGH
(2) Stream/Intertidal Zone Interaction
NA
NA
(2) Longitudinal Tidal Flow
NA
NA
(2) Tidal Marsh Stream Stability
NA
NA
(3) Tidal Marsh Channel Stability
NA
NA
(3) Tidal Marsh Stream Geomorphology
NA
NA
(1) Water Quality
MEDIUM
MEDIUM
(2) Baseflow
HIGH
HIGH
(2) Streamside Area Vegetation
HIGH
HIGH
(3) Upland Pollutant Filtration
HIGH
HIGH
(3) Thermoregulation
HIGH
HIGH
(2) Indicators of Stressors
NO
NO
(2) Aquatic Life Tolerance
LOW
NA
(2) Intertidal Zone Filtration
NA
NA
(1) Habitat
MEDIUM
HIGH
(2) In -stream Habitat
LOW
MEDIUM
(3) Baseflow
HIGH
HIGH
(3) Substrate
LOW
LOW
(3) Stream Stability
HIGH
HIGH
(3) In -stream Habitat
LOW
HIGH
(2) Stream -side Habitat
HIGH
HIGH
(3) Stream -side Habitat
HIGH
HIGH
(3) Thermoregulation
HIGH
HIGH
(2) Tidal Marsh In -stream Habitat
NA
NA
(3) Flow Restriction
NA
NA
(3) Tidal Marsh Stream Stability
NA
NA
(4) Tidal Marsh Channel Stability
NA
NA
(4) Tidal Marsh Stream Geomorphology
NA
NA
(3) Tidal Marsh In -stream Habitat
NA
NA
(2) Intertidal Zone
NA
NA
Overall
MEDIUM
HIGH
APPENDIX F
North Carolina Department Preservation Office
and History Registry Map
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M.■ Local districts & boundaries Local HD Center Point + Surveyed Only, Gone
0 0.1 0.2 0.4 km
Local individual resources & centerpoints Surveyed Only individual resources & centerpoints ' Surveyed in NRHD, Gone Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan, Esri
Japan, MET I'
Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, (c)
Blockface- Multiple properties
Local Landmark Surveyed Only OpenStreetMap contributors, and the GIS User Community
Local Landmark, Gone Surveyed in NRHD
North Carolina State Historic Preservation Office
State of North Carolina DOT, Esri, HERE, Garmin, INCREMENT P, NGA USGS