20001195 Ver 17_Monitoring Report_20210601

FY
2021 SCF In -Line
Detention Basin Baseline
Conditions Report
Charlotte Douglas International Airport
Deicing Pad and South Crossfield Taxiway
(SCF) In -line Detention Basin
Charlotte, NC
May 28, 2021

2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
Contents
1 Project Background 1
2 Methods 1
2.1 Monitoring Locations 1
2.2 Dimension Assessment 2
2.3 Substrate Characterization 2
2.4 Bank Erosion Hazard Index 2
2.5 North Carolina Stream Assessment Methodology (NCSAM) 2
2.6 Photographic Documentation 3
2.7 Quality Assurance/Quality Control 3
3 Results and Discussion 3
4 References 5
Tables
Table 3-1. Summary of Monitoring Site Characteristics 4
Appendices
Appendix A Figures
Appendix B Correspondence with NCDWQ and Approved Monitoring Plan
Appendix C Stream Monitoring Location Profiles
Appendix D Field Data Forms
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Charlotte Douglas International Airport
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2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
1 Project Background
The City of Charlotte — Aviation Department (Applicant) submitted a Phased Clean Water
Act (CWA) Section 404/401 Individual Permit (IP) on January 31, 2020, for the proposed
expansion of the Charlotte Douglas International Airport (CLT or Airport) in Mecklenburg
County, North Carolina. The CWA Section 401 Individual Water Quality Certification was
issued by the North Carolina Division of Water Resources (NCDWR) on August 21, 2020
and the CWA Section 404 IP was approved by the U.S. Army Corps of Engineers
(USACE) on December 15, 2020. A component of the approved Phased IP includes
stormwater detention basins located in -line with existing channels. During the Phased IP
Public Notice period, the USACE and the NCDWR requested a monitoring plan of those
channels subject to in -line detention flood limits. The monitoring plan requires
documentation of pre- and post -construction detention basin conditions, as well as
periodic monitoring.
An in -line detention basin will be constructed on Coffey Creek (S25), associated with the
Deicing Pad and South Crossfield Taxiway (SCF) Project (Appendix A, Figure 1). The
purpose of the SCF in -line detention basin is to provide peak discharge reduction for
storm events up to the 100-year event. The SCF in -line detention basin includes
permanent impacts to S25 for the placement of a culvert and earthen berm that would be
sized to detain 2-, 10-, 25-, and 100-year storm events to reduce peak flows
downstream. Additionally, a permanent culverted stream crossing for road access within
the basin for construction and maintenance is also proposed on a tributary to Coffey
Creek (S34). During the design storm event, three streams (S25, S32, and S34) would
overtop their banks and flood the detention area (i.e. the streams' floodplain) for
stormwater detention, but would attenuate within 48 hours. Aside from the above -
mentioned permanent impacts, no other direct stream impacts are proposed as a result
of the SCF in -line detention basin. However, the streamside areas of Coffey Creek would
require grading and removal of trees in order to provide the capacity necessary to detain
the designed storm event. A 10-foot vegetated buffer along each stream will be
maintained.
In the Coffey Creek in -line detention basin, S25, S32, and S34 are proposed to
experience flooding of streamside areas. All three channels will require baseline
conditions documentation per the approved monitoring plan. This report summarizes the
findings of the baseline, pre -construction conditions of Coffey Creek and related
tributaries.
2 Methods
2.1 Monitoring Locations
Monitoring locations were selected in consultation with NCDWR prior to baseline
monitoring (see Appendix B). A total of seven monitoring locations were established at
riffle features: four along Coffey Creek proper (S25-1, S25-2, S25-3, and S25-4) and
three on tributaries to Coffey Creek (S32-1, S32-2, and S34-1) (Appendix A, Figure 2).
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2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
One of the Coffey Creek locations, S25-1, was located downstream of the detention area
to monitor conditions downstream of the detention basin.
Per the approved monitoring plan, monitoring locations within the detention basin (S25-2,
S25-3, S25-4, S32-1, S32-2, and S34-1) are subject to dimension, substrate, Bank
Erosion Hazard Index (BEHI), and North Carolina Stream Assessment Methodology
(NCSAM) assessments, as well as photographic documentation. The monitoring location
downstream of the detention basin (S25-1) is subject to substrate and BEHI
assessments, as well as photographic documentation.
Each previously approved monitoring location was located via GPS and photos
presented in Appendix A. One, 4-foot rebar ("bank pin") was installed at approximately
top -of -bank on each side of the channel to establish permanent monitoring locations.
Bank pins were recorded using a GPS with sub -meter accuracy (Trimble Geo7x).
Permanently established cross sections will allow comparison of stream dimension
through time and identify changes (if any) in stream classification.
2.2 Dimension Assessment
Cross -sectional dimension data was collected for monitoring locations S25-2, S25-3,
S25-4, S32-1, S32-2, and S34-1 applying standard surveying techniques using a basic
surveyor's level (CST Berger), rod, and a tape strung from bank to bank. Cross sections
were surveyed assuming height of instrument as elevation zero, typically at the left "bank
pin" (i.e., rebar), and differential leveling. Elevations were recorded at important features
such as top of bank, slope breaks, bankfull indicators, edge of water, and thalweg.
Channel parameters, based on The Key to the Rosgen Stream Classification of Natural
Rivers (Rosgen 1994), were calculated from the plotted elevation data. These
parameters (entrenchment ratio, width/depth ratio, sinuosity, slope, and substrate) were
used to assign a channel classification type for each cross-section location.
2.3 Substrate Characterization
A Wolman pebble count (Wolman 1954) was performed at all monitoring locations to
characterize the existing surface grain size distribution of substrate. Substrate particle
sizes were plotted by size class and frequency to determine distributions for each cross
section.
2.4 Bank Erosion Hazard Index
Bank Erosion Hazard Index (BEHI) assessments (Rosgen 2001) were completed for
each bank at all monitoring locations. This included an evaluation of root depth -to -bank
height, percentage of root density and surface protection, and bank angle.
2.5 North Carolina Stream Assessment Methodology (NCSAM)
The North Carolina Stream Assessment Methodology (NCSAM) (NCDWQ 2010) was
created through a collaborative effort of several entities including USACE, U.S.
Department of Transportation Federal Highway Administration (USFHWA), U.S.
Environmental Protection Agency (USEPA), and many others, in order to provide the
public and private sectors with an accurate, consistent, rapid, observational, and
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2021 SCF In -Line Detention Basin Baseline Conditions Report _''
Charlotte Douglas International Airport
science -based field method to determine the level of function of streams within North
Carolina. NCSAM was used to assess stream quality and function at monitoring locations
S25-2, S25-3, S25-4, S32-1, S32-2, and S34-1. This included an assessment of
hydrological influence, water quality, and biology for each location. Baseline, pre -
construction NCSAM assessments assumed no construction activity within the vegetated
buffer.
2.6 Photographic Documentation
Photographs were taken at each monitoring location to visually document the existing
conditions of the channel. Photographs looking upstream, downstream, and each bank
(left and right) were made with the survey tape in view for visual reference.
2.7 Quality Assurance/Quality Control
A biologist with Rosgen training (Wildland Hydrology, Inc.) lead the field assessments for
baseline condition monitoring. All data transcribed from field data sheets were reviewed
by a second scientist, also Rosgen-trained, for accuracy and review documentation
maintained for records.
3 Results and Discussion
The field site visits were conducted on April 29 and 30, 2021, prior to commencement of
detention basin construction activities, for pre -construction baseline monitoring. Three of
the monitoring locations located on Coffey Creek (S25-1, S25-2, and S25-3) exhibited
significant, active streambank erosion. Dimension assessments following the geomorphic
survey, and applying Rosgen technique, classified monitoring locations S25-2 and S25-3
as "F-type" streams. Conversely, the most upstream site (S25-4) on Coffey Creek had
stable streambanks, larger sediment grain size (i.e., larger D50), and a higher
entrenchment ratio, which classified this location as a more stable "C-type" stream.
Tributaries to Coffey Creek (S32-1, S32-2, and S34-1) were considered intermittent
streams. The most upstream location, S32-1, was classified as an "E-type" stream with
moderate and high streambank erosion risk. The downstream location, S32-2, was
classified as a more stable "B-type" stream with moderate streambank erosion risk. The
site located on stream 34 (S34-1) had "very low" and "low" streambank erosion risk for
left and right streambanks, respectively. Like the uppermost location on S32, S34-1 was
also classified as an E-type stream.
All cross-section locations scored "high" on the NCSAM assessment based on the
ecoregion, condition, and level of disturbance of the streams. This indicates generally
high functionality according to hydrology, water quality, and aquatic habitat.
A summary of geomorphic parameters, classifications, and scores for BEHI and NCSAM
are provided in Table 3-1 below. Complete, detailed stream profiles for each
monitoring location are provided in Appendix C.
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2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
Table 3-1. Summary of Monitoring Site Characteristics
Coffey Creek
S25-2
S25-3
S25-4
Tributaries to Coffey Creek
S32-1
S32-2
S34-1
Bankfull Width (ft)
38.7
30.5
19.1
3.9
6.8
1.9
Floodprone Width(ft),
Bankfull Mean Depth (ft)
2.9 1.2
0.8 1.1
0.5 0.2
Bankfull Max Depth (ft)
Bankfull Cross Sectional
Area (ft2)
110.6 36.0 15.9 4.2 3.0 0.4
Width/Depth RatiM
Entrenchment Ratio
1.3 1.4
16.0
2.5 2.7
7.7 46.0 111
1.6 2.5
Rosgen Classification F4 F4 C4 E5 B4 E5
1911--
Left Bank Moderate Moderate Moderate Moderate Moderate Low
(23.37) (27.52) (20.23) (27.11) (22.15) (10.27)
BEHI
Very
Right Bank Moderate High Moderate High Moderate Low
(27.01) (37.49) (22.88) (36.14) (27.16) (8.24)
NCSAM Score
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2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
4 References
Rosgen, D. L., 1994. A classification of natural rivers. Catena (22): 169-199
. 2001. A Practical Method for Computing Stream Bank Erosion Rate. In: Pages 9-15 in
Proceedings of the 7th Federal Interagency Sedimentation Conference, Mar 25-29, U.S.
Interagency Committee on Water Resources, Subcommittee on Sedimentation, Reno,
Nevada, pp. 9-15.
N.C. Division of Water Quality (NCDWQ). 2010. Methodology for Identification of Intermittent and
Perennial Streams and their Origins, Version 4.11. North Carolina Department of
Environment and Natural Resources, Division of Water Quality, Raleigh, NC. Web link:
http://portal.ncdenr.org/c/document_library/get_file?uuid=Oddc6eal-d736-4b55-8e50-
169a4476de96&groupld=38364
Wolman, M.G. (1954) A Method of Sampling Coarse River -Bed Material. Transactions —American
Geophysical Union, 35, 951-956. http://dx.doi.org/10.1029/TR035i006p00951
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Charlotte Douglas International Airport
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2021 SCF In -Line Detention Basin Baseline Conditions Report I.)�
Charlotte Douglas International Airport
Appendix A
Figures
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2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
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2021 SCF In -Line Detention Basin Baseline Conditions Report I.)�
Charlotte Douglas International Airport
Appendix B
NCDWQ Correspondence
and Approved Monitoring
Plan
IMF
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Charlotte Douglas International Airport
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
Proposed Monitoring Plan
Introduction
The City of Charlotte — Aviation Department (Applicant) submitted a Department of the Army Phased
Individual Permit (IP) on January 31, 2020, for the proposed expansion of the Charlotte Douglas
International Airport (CLT or Airport) in Mecklenburg County, North Carolina. A component of the Phased
IP proposes stormwater detention in -line with existing channels. During the Public Notice period, the
United States Army Corps of Engineers (USACE) and the North Carolina Department of Environmental
Quality (NCDEQ) Division of Water Resources (DWR) requested a monitoring plan of those channels
subject to in -line detention.
In the application, in -line detentions are proposed on Ticer Branch (Stream 1 [Si]) for the North End
Around Taxiway (NEAT) element and on Coffey Creek (S25) for the South Crossfield Taxiway (SCF)
element. The purpose of an in -line detention is to provide peak discharge reduction for storm events up to
the 100 year event. Both in -line detentions propose permanent impacts as a result of a culvert and berm
that would be sized to reduce peak flows downstream. For purposes of analysis storm frequencies
modeled include the 2-, 10-, 25-, 50-, and 100-year storm events. Additionally, each detention basin also
proposes a culverted stream crossing for road access within a basin for construction and maintenance.
During the design storm event, the streams would overtop their banks and flood the detention area (i.e.
the stream's floodplain) for stormwater detention, but attenuate within 48 hours. Beyond the culvert and
berm and access road culvert in each basin, no other direct impacts as a result of the in -line detention are
proposed to the stream channels. However, the streamside areas of both Ticer Branch and Coffey Creek
would require an earthen embankment, grading, and removal of trees in order to provide the capacity
necessary to detain the designed storm event. A 10-foot vegetated buffer along each stream will be
maintained.
In the Ticer Branch in -line detention, S1 and S2 are proposed to experience flooding of streamside area.
In the Coffey Creek in -line detention, S25, S32, and S34 are proposed to experience flooding of
streamside area. All five channels will require monitoring per the USACE and DWR request.
Monitoring Locations
The location and number of monitoring locations within both the Ticer Branch and Coffey Creek detention
areas and one monitoring location downstream of each detention basin will be identified. These locations
will be submitted to the DWR prior to baseline monitoring implementation. For the Ticer Branch detention
basin, one location will be located downstream of the detention, but before Ticer Branch enters a culvert
that goes beneath 1-485. For the Coffey Creek detention basin, one location will be downstream of the
detention but upstream of the next downstream stream confluence. Permanent monitoring locations will
be field located using GPS grade accuracy, and set prior to construction by setting permanent
monuments on both stream banks to facilitate comparison of data collected during future monitoring
events.
Monitoring locations within the detention basins will be subject to dimension, substrate, Bank Erosion
Hazard Index (BEHI), and North Carolina Stream Assessment Methodology (NCSAM) assessments, as
well as photographic documentation. Monitoring locations downstream of the detention basins will be
subject to substrate and BEHI assessments, as well as photographic documentation.
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
All monitoring locations are subject to baseline pre- and post -construction events. The monitoring
locations within the detention basins will be subject to both the annual and quarterly monitoring events.
The monitoring locations downstream of the detention basins will be monitored on a quarterly basis only,
within 30 days of a 2-year storm event or greater (a 2-year storm defined as a rain event of at least 2.28
inches within 6 continuous hours). A storm event greater than the 2-year is a 10-year or greater storm (a
10-year storm defined as a rain event of at least 3.72 inches within 6 continuous hours).
Timing/Frequency
BASELINE MONITORING
The baseline monitoring events will take place pre -construction and post -construction. The purpose of the
pre -construction event is to capture existing conditions of streams subject to detention. The post -
construction event is to document any changes between pre -construction and post -construction and
construction conditions; ideally, the post -construction conditions of streams would be the same as
existing conditions pre -construction with the exception of the streamside areas being converted to
detention areas. If a 2-year storm occurs between the pre -construction and post -construction events, it
should be documented and noted that the post -construction baseline would capture any changes from
said storm event prior to the detentions becoming operational. The data collected immediately following
construction would be expected to be representative of conditions that subsequent monitoring events
would be compared to, taking into account normal stream dynamics and fluctuation.
Baseline monitoring event data collection will include dimension, substrate, Bank Erosion Hazard Index
(BEHI), and NCSAM assessments, as well as photographic documentation.
ANNUAL MONITORING
Annual monitoring events will be held on an annual basis for a period of five years post -construction of
both the Ticer Branch and the Coffey Creek detention basins. This annual monitoring will occur
regardless of storm event occurrence. The first annual monitoring event shall occur six months after the
post -construction baseline event occurs. If at the end of the five year period of monitoring, the results
during the monitoring events have not significantly changed since the post -construction baseline
condition, then the annual monitoring requirements shall be successfully satisfied.
Annual monitoring event data collection will include dimension, substrate, Bank Erosion Hazard Index
(BEHI), and NCSAM assessments, as well as photographic documentation at locations within the
detention basins.
ANNUAL MONITORING POST -STORM
Annually, monitoring shall occur within 30 days following the first 10-year storm event or greater for a
period of five years post -construction of both the Ticer Branch and the Coffey Creek detention basins.
Only one annual monitoring event per 10-year or greater storm event is necessary. This post -storm
annual monitoring event could be additional to quarterly events or become the quarterly event, depending
on storm frequency timing.
Post -storm annual monitoring event data collection will include substrate and BEHI assessments, as well
as photographic documentation at locations within the detention basins and downstream of the detention
basins.
QUARTERLY MONITORING
On a quarterly basis, monitoring shall occur within 30 days following the first 2-year storm event or greater
(2-year+) of the respective quarter up to two years. Only one monitoring event per quarter per 2-year+
storm event is necessary. If a 2-year+ storm event does not occur, then monitoring during that respective
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
quarter is not required. If at the end of the two year period of quarterly monitoring, the results during the
monitoring events have not significantly changed since the post -construction baseline condition, then the
quarterly monitoring requirements shall be successfully satisfied.
Quarterly monitoring event data collection will include substrate and BEHI assessments, as well as
photographic documentation.
Table 1. Summary of Monitoring Requirements
onitori
Events
Duration
Location
Monitoring
Requirements
Storm
Event
Within
Pre -Construction 1 time detention
basins
Dimension,
substrate, BEHI, n/a
NCSAM, photos
Within Dimension,
Post -Construction 1 time detention substrate, BEHI, n/a
basins NCSAM, photos
Annual
1x/year for Within Dimension,
5 years detention substrate, BEHI, n/a
basins NCSAM, photos
Conducted regardless of storm
event.
Within and
Annual 1x/year for downstream Substrate, BEHI, 10-year or
(Post -Storm) 5 years of detention photos greater
basins
Conducted the 1st time a 10-
year+ event occurs in a year.
Could occur additional to the 4
quarterly events or could be
equal to and take the place of
a quarterly event. If no 10-
year+ storms occur in a year,
then annual monitoring post -
storm would not occur.
2-year or Would only be conducted if a
Downstream greater, 2-year+ storm event occurs in
Quarterly 4x/year for Substrate, BEHI, whichever a quarter. If no 2-year+ storms
(Post -Storm) 2 years of detention photos comes 1st occur in a quarter, then
basins in a monitoring in that quarter
quarter would not occur.
Methods
DIMENSION ASSESSMENT
Dimensional data will be collected based on The Key to the Rosgen Stream Classification of Natural
Rivers which is a classification system that assigns a channel type based on channel slope, width to
depth ratio, bed material, entrenchment ratio, and sinuosity. Permanent cross section monitoring will be
conducted at one or more riffle features that are established during the baseline monitoring events on
each channel subject to in -line detention. A stream classification type will be determined at each cross
section during the baseline events as well as subsequent monitoring events. Graphical representations of
cross sections will be provided and as data is collected year to year, the graphical representations will be
overlaid to each other for comparison.
Data collected in dimensional assessment will be presented as a list of parameters (Table 1) resulting in a
Rosgen Classification channel type, which represents the measure of all dimension assessment
parameters. Classifying a channel type based on Rosgen methodology on an annual basis allows for
observation in shifts of channel geomorphology, if any. Geomorphological evolution is a natural channel
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
process, that when observed, doesn't necessarily indicate channel degradation, but does provide insight
as to whether or not a channel is widening, incising, straightening, or experiencing sediment loading
based on the measured parameters.
The Rosgen Classification channel type is not expected to significantly change from baseline conditions;
however, if channel type changes do occur, then it would be expected that one or more parameter has
significantly been altered from the baseline channel classification type. Further analysis of the individual
parameters (i.e. substrate) would need to be evaluated to determine if degradation has occurred.
SUBSTRATE
A Wolman pebble count is a characterization of the composition of streambed and bank substrate
material. Monitoring substrate during monitoring events can indicate changes in stream character, erosion
rates, and sediment supply. Wolman pebble counts categorize substrate types into silt/clay, sands,
gravels, cobbles, boulders, and bedrock, which are sub -categorized within the substrate types based on
diameter size. The data collected from a substrate sample can be analyzed by sizes (diameter in mm)
and by distribution of size. For example, D5o is the median diameter of a substrate sample and also the
diameter size at which 50% of the substrate particles are smaller and 50% of the substrate particles are
larger than the mean diameter distributed across a sample.
Wolman pebble count methodology will be utilized to calculate the D5o of the stream bed material to
establish baseline particle size and distribution at the permanent cross -sections to aid in determining
Rosgen classification channel type. The post -construction baseline D5o will also be the parameter to
which future substrate analysis would be compared. If future substrate monitoring indicates a trend of the
D5o shifting to a smaller particle size diameter (by more than 20% of original size) after three substrate
monitoring events, then DWR will be notified and remedial actions will be evaluated for consideration.
BANK EROSION HAZARD INDEX
While stream bank erosion is a natural process that occurs in every watershed, excessive erosion has
serious adverse consequences for the physical and biological function of streams and rivers. It is often
difficult, however, to distinguish between streambanks that are eroding at a natural rate from those that
are or have the potential to erode at unnaturally high rates due to altered watershed hydrology or
sediment loads. The Bank Erosion Hazard Index (BEHI) is a methodology for assessing streambank
erosion condition and potential that assigns point values to bank condition. BEHI will be assessed utilizing
the modified BEHI procedure that includes ratios of root depth to bank height, root density in percentage,
surface protection in percent, and bank angle in degrees.
The BEHI scoring falls into six categories ranging from Very Low to Extreme. In reference to the post -
construction baseline BEHI scores, if future monitoring events produce a BEHI score two categories
greater than the baseline from three subsequent events, then DWR will be notified and remedial actions
will be evaluated for consideration. DWR will be contacted if the baseline score is "Extreme", for further
discussion and possible procedure modification.
NORTH CAROLINA STREAM ASSESSMENT METHODOLOGY
The North Carolina Stream Assessment Methodology (NCSAM) will be utilized to assess stream quality
and function at each cross section. The assessment length at each cross section will be 100 feet
upstream and downstream of the cross section location. The NCSAM method provides for an evaluation
of streamside riparian vegetation as well as a field assessment of hydrological influence, water quality,
and biology within a reach. However, due to the nature of the detention construction, the streamside
areas will be cleared of trees with the exception of a 10-foot vegetated buffer. The NCSAM assessments
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
should take into consideration the NCSAM matrices that assess vegetated buffer parameters so that the
detention construction itself does not influence the NCSAM scores.
PHOTOGRAPHIC DOCUMENTATION
Photographs looking upstream and downstream at each monitoring location will be taken during the
baseline monitoring to visually document the existing conditions of the channels. Photographs will also be
taken post -construction, and at annual and quarterly monitoring events. Photographs will be provided in
both the annual and quarterly reports, but will also be displayed side by side over time as the
photographs are collected.
Summary
The proposed monitoring plan for the channels subject to in -line detention will consist of multiple
measurements and assessments noted above that will provide a way to track the geomorphology,
substrate, stability, and quality of the channels over time. Pre- and post -construction baseline conditions
will be presented with a short cover letter and report of findings will be provided to the USACE and DWR
for review. Subsequently, after each annual and quarterly monitoring event, a short cover letter and report
of findings will be provided for review.
At each cross section identified within the detention basins, dimensional data, substrate characterization,
NCSAM, BEHI will be assessed and described above. A variation of the following table will be utilized to
report baseline, annual, and quarterly data at each cross-section. At each monitoring location identified
downstream of the detention basins, substrate characterization and BEHI will be assessed and described
above.
Table 2. Example Table for Assessment Data
411
Bankfull Width (ft)
Floodprone Width (ft)
Bankfull Mean Depth (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (ft2)
Width/Depth Ratio
Entrenchment Ratio
Dso (mm)
Rosgen Classification
NCSAM Score
BEHI
Stream # Stream # Stream #
Cross Section # Cross Section # Cross Section #
A variation of the following table will be utilized to report overall data after each collection event over time.
Table 3. Example Table of Results Summary
=ME
IEHI RClassn Dso NCSAM BEHI Rosgen
Clas
Feature
Cross
Section #
�so NCSAM BEHI
Stream #
Stream #
Stream #
Stream # #
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CLT Airport Expansion I SAW-2018-01071
In -Line Detention Monitoring Plan
August 4, 2020
Feature
Cross
Section #
Year
(Baseline)
Year
(Post -Construction)
Rosgen Dso NCSAM BEHI Rosgen pso NCSAM BEHI Rosgen
Class Class Class
J o NCSAM BEHI
#
Methodology References
The Key to the Rosgen Stream Classification of Natural Rivers:
https://wildland hydrology.com/resources/docs/River%20Restoration%20and%20Natural%20Channel%20
Desiqn/Rosqen 2011 Natural Channel Design.pdf
Wolman Pebble Count:
https://dep.wv.gov/WWE/getinvolved/sos/Documents/SOPs/PebbleCount Methods.pdf
Bank Erosion Hazard Index:
https://deb.wv.gov/WWE/getinvolved/sos/Documents/SOPs/BEHI-Overview.bdf
North Carolina Stream Assessment Methodology:
https://www.saw.usace.army.mil/Portals/59/docs/regulatory/bublicnotices/2013/NCSAM Draft User Man
ual 130318.0f
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cCLT
CHARLOTTE DOUGLAS
February 23, 2021
Ms. Sue Homewood
Environmental Specialist II
NCDEQ — Division of Water Quality
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27105
RE: Deicing Pad and South Crossfield Taxiway
401 Water Quality Certification WQC004233 (City of Charlotte)
DWR Project 20001195 V17 (USACE Action ID. No. SAW-2018-01071)
Charlotte Douglas International Airport, Mecklenburg County
Dear Ms. Homewood:
As required by the conditions of our 401 Water Quality Certification, we are sending this correspondence for
your review and approval of the proposed monitoring locations for the Deicing Pad and South Crossfield
Taxiway in -line detention basin in accordance with the NCDEQ Approved Monitoring Plan dated August 4, 2020.
Construction of the Deicing Pad and South Crossfield Taxiway project commences on March 1, 2021 and in -line
basin construction is anticipated to start around the middle of April. Monitoring locations are along Coffey
Creek (S25) and two side tributaries (S32 and S34). Attached is a map identifying the proposed locations, as well
as photographs to document our selections. The locations are identified as follows:
Location
Number
Description
Photo Numbers
S25-1
Coffee Creek 1 — Downstream of Basin
1, 2
S25-2
Coffee Creek 2 — Lower Basin
3, 4
S25-3
Coffee Creek 3 — Mid Upper
5, 6
S25-4
Coffee Creek 4 — Upper Basin (near Byrum Drive)
7, 8
S34-1
Stream 34
9, 10
S32-1
Stream 32 — lower end
11, 12
S32-2
Stream 32 — upper end
13, 14
Please feel free to call with any questions.
Sincerely,
Jimmy D. Jordan, P.G.
Environmental Manager
LJH/ms
Enc. Basin Map and Photos
cc: Kelly Thames/HDR
Amber Leathers/CLT
T:\Current Projects\AF78-008 Deice Pad SCF Program Master\Correspondences\Basin Monitoring\FINAL Proposed Monitoring Homewood
i
dal CITY OF CHARLOTTE DEPARTMENT

9,210.0N121011N011,9,1,0L698
3.r4
01. ,Z0Z • •.•

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 1— Point S25-1, view downstream
PHOTO 2 — Point S25-1, view upstream
2

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 3 — Point S25-2, view downstream
Point S25-2, view upstream
3

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 5 — Point S25-3, view downstream
•
PHOTO 6 — Point S25-3, view upstream
4

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 7 — Point S25-4, view downstream
701.
PHOTO 8 — Point S25-4, view upstream
5

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 9 — Point S34-1, view downstream
ou^T^ , ^ — Point S34-1, view upstream
6

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 11— Point S32-1, view downstream
PHOTO 12 — Point S32-1, view upstream
7

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
February 23, 2021
PHOTO 13 — Point S32-2, view downstream
Point S32-2, view upstream
8

aria
CHARLOTTE DOUGLAS' '
IN I EHNAI ILINAL AWL HI
March 31, 2021
(Rev February 23, 2021)
Ms. Sue Homewood
Environmental Specialist II
NCDEQ — Division of Water Quality
450 West Hanes Mill Road, Suite 300
Winston Salem, NC 27105
RE: Deicing Pad and South Crossfield Taxiway Project at CLT Airport
401 Water Quality Certification WQC004233 (City of Charlotte)
DWR Project 20001195 V17 (USACE Action ID. No. SAW-2018-01071)
Proposed Replacement Stream Monitoring Points
Dear Ms. Homewood:
As we discussed on Friday March 19, we have revised two of our initially proposed baseline monitoring locations for
the Deicing Pad and South Crossfield Taxiway in -line detention basin as required by the conditions of our 401 Water
Quality Certification. We are sending this correspondence for your review and approval of the proposed replacement
monitoring locations S25-1 and S25-4. You will recall that the S25-1 location was positioned just south of the
proposed dam and was in an area of significant stream -bank erosion. The new S25-1 location is approximately 220
yards distant from the water line crossing and outfall of the structure, just prior to a point where a small tributary
enters the main stream from the east. The original S25-4 location was replaced due to the proximity and potential
influence of the Byrum drive culvert. The new S25-4 location was verbally already agreed upon in our meeting and is
located approximately 150 feet downstream of the original. Attached is a map identifying the original and two newly
selected locations, as well as photographs to document the new selections. The locations of the replacements are
identified as follows:
Location
Number
Description
Photo Numbers
S25-1
Coffee Creek — selected point, upstream, and
downstream
1, 2
S25-1
Coffee Creek — far downstream
3
S25-4
Coffee Creek — selected point
4
S25-4
Coffee Creek - downstream, upstream
5,6
Please feel free to call with any questions.
Sincerely,
41a41 7 �. 202
Jimmy D. Jordan, P.G.
Environmental Manager
LiH/ms
Enc. Basin Map and Photos
cc: Kelly Thames/HDR
Amber Leathers/CLT
T:\Current Projects\AF18-008 Deice Pad SCF Program Master\Correspondences\Basin Monitoring\FINAL Revised Proposed Monitoring Ho
00
2' CITY OF CHARLOTTE DEPARTMENT

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
evious
ation
PHOTO 1— Proposed new monitoring point 525-1, looking upstream. Rocks in foreground, suggested sampling
location. Original planned location shown near sandbar in distance. Location of white pickup truck in far distance is
at water line crossing and is near the outfall of proposed structure.
2

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
PHOTO 2 — Proposed new monitoring point 525-1, view immediate downstream
3

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
PHOTO 3 — Proposed new monitoring point 525-1, view distant downstream
4

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
PHOTO 4 — Proposed new monitoring point 525-4, location
5

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
PHOTO 5 — Proposed new monitoring point 525-4, view downstream
6

Regional Detention Basin Proposed Monitoring Location Photos
Deicing Pad and South Crossfield Taxiway
March 31, 2021 (Rev February 23, 2021)
PHOTO 6 — Proposed new monitoring point 525-4, view upstream
7

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2021 SCF In -Line Detention Basin Baseline Conditions Report I.)�
Charlotte Douglas International Airport
Appendix C
Stream Monitoring
Location Profiles
May 28, 2021

2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
This page is intentionally left blank.
May 28, 2021

MONITORING LOCATION S25-1 Coffey Creek
number of particles
cy 0
CO CO V N
O 00
0
01
0
0
0
0
0
U
0
0
fn
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 (3) CO N- CO LC) V co N
uey� Jaul4 luaoiad
0
0
0
O
April 30, 2021
Mt Bank
Erosion
Potential
Extreme
High
Very High
Extreme
Very High
Very High
_W
x W
w
O m
0
O
CD
Left Bank
Erosion
Potential
Very High
Moderate
Very High
Very High
Very High
High
x v
0) In
c)
co
-O O
co co
N
In co
c)
c o (
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W cocci
M
BANK EROSION HAZARD INDEX
Erodibility Variables
Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
C•E
O 0 E .2 > N O C "O > C .2 co Q N (6
1222 Y d U o p 0 Q .� U
N O 0 d LL O i 0 C0 O d 0 O
O N (6 �� N C O� O = w N N
0 T'E '� U S N (6 O d i N O (6 C d Q U
c t E- E> 0> N 0.E t:o m d. 2 0.0 > y
-oo o
Stream Profile 1: S25-1

MONITORING LOCATION S25-2 Coffey Creek
S25-2 Riffle
Wbkf = 39.90 Dbkf = 2.77 Abkf = 110.64
|.
|
|
«
,
|
5 10 15 20 25 30 35 40 4
Horizontal Distance (feet)
•• Bankfull Width — —Flood-Prone Width •
• Bankfull Indicators X Bank Pins
|
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Baseline Pre -Construction
Condition
38.7
51.8
2.9
3.8
110.6
)2?
16.0 (coarse gravel) I
2
NCSAM score. The overall NCSAM score for monitoring location S25-2
was High , indicating good stream function across all categories
(hydrology, water quality, and habitat). Medium scores were given for
microtopography (Class 4) and stream stability (Class 3). All Class 2
functions were rated High .
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
(Width/Depth Ratio
Entrenchment Ratio
f
o
ID50 (mm)
Rosgen Stream Type
Stream Profile 2: S25-2

MONITORING LOCATION S25-2 Coffey Creek
Right Bank
Erosion
Potential
Very High
Low
Moderate
Very High
Very Low
Moderate
X v
0 0
E.
V
Lo co
O L()
LC) V
E.
C (n
6
N Ln
6.—
N
Left Bank
Erosion
Potential
Very High
Low
Moderate
Low
Low
Moderate
Index
Score
8.34
3.29
5.31
2.93
3.50
23.37
BANK EROSION HAZARD INDEX
Erodibility Variables
'Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
S25-2 Riffle
O
0
0
O
Q
0
Q
0
0
0
number of particles
O) CO I— CO LC) V CO N O O
0
O
N
0
0)
0
T
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
O (3) CO CO LC) V CO
ueyfJaul4luaoJad
0
O
0
0
0
O
O
r O
0
0
particle size (mm)
—# of particles
0
E
111
(6
E
0
N
d)
Q
N
0
N
Substrate Type
0
0
%OL
(
0
0
0
LO
LO
M
O
T
sand
gravel
0
0
Ibedrock
wood/detritus
O
U
Q
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.N
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0
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N
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O)
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0
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= Q
0
m N N -0
Stream Profile 2: S25-2

MONITORING LOCATION S25-3 Coffey Creek
c
/
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April 29, 2021
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Baseline Pre -Construction
Condition
30.5
41.5
2
2.2
36.0
25.9
3?
7.7 (fine gravel) I
Rosgen Stream Type F4
NCSAM score. The overall NCSAM score for monitoring location S25-3
was High , indicating good stream function across all categories
(hydrology, water quality, and habitat). Most function class ratings were
scored Medium or High , with the exception of stream stability (Class 3)
which was scored Low.
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
(Width/Depth Ratio
Entrenchment Ratio
f
11350 (mm)
ƒ
Stream Profile 3: S25-3

MONITORING LOCATION S25-3 Coffey Creek
Right Bank
Erosion
Potential
Very High
Moderate
High
High
Very High
High
i|$\\7§«
- cs-)
=
�01
Left Bank
Erosion
Potential
High
High
Very High
Low
Very Low
Moderate
Index
Score
7.59
8.30
2.44
1.45
BANK EROSION HAZARD INDEX
Erodibility Variables
'Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
Lc) = number � +:e
0
S25-3 Riffle
)1 0.1 1 10 100 1000 10C
particle size (mm)
nulative % - -# of particles
\ \I. ....*
om
NE
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dm
,,,.........
-------i
N.
---
.
`
ci
o _ CO r uCO LC) , p Wig0000000( m °
Size Distribution
£
ca
.72
}
Substrate Type
/
§
/
17% I
2
f
sand
gravel
Ibedrock
wood/detritus
E
o
2
7
Q
7
G
g
000000
Stream Profile 3: S25-3

MONITORING LOCATION S25-4 Coffey Creek
2
/
§
2
/
z
0
/
Ĥ
c
co
O o
c • /
/ 2
k�
= ,
j /
k=
9/
• q
O m
25-4 Riffle
Wbkf = 16.17 Dbkf = 0.98 Abkf = 15.87
5 10 15 20 25 30 35 40 45 50 55
Horizontal Distance (feet)
•• Bankfull Width — —Flood-Prone Width —Water Surface
• Bankfull Indicators * Bank Pins
|
|
|
|
|
|
|
|
|
|
|
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:
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{
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0884) uowneig
Stream Characterization
{_2 e
{//)
2/m§
>k.
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f=15 %aE
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2 '\ 2
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d\ \00
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)()))\\
Baseline Pre -Construction
Condition
1.8
15.9
22.9
46.0 (very coarse gravel)
C4
NCSAM score. The overall NCSAM score for monitoring location S25-4 was
High, indicating good stream function across all categories (hydrology, water
quality, and habitat). Two of three Class 1 stream functions (Water Quality
and Habitat) rated High, while Hydrology was rated Medium . All Class 2
functions were rated Medium or High; substrate and streamside area
attenuation, both Class 3 functions, were rated Low.
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
Width/Depth Ratio
'Entrenchment Ratio
f
1D50 (mm)
Rosgen Stream Type
Stream Profile 4: S25-4

MONITORING LOCATION S25-4 Coffey Creek
Right Bank
Erosion
Potential
High
Moderate
Moderate
Low
Very Low
Moderate
ik@))\M@
£A°°°°—Q
Left Bank
Erosion
Potential
High
Low
Moderate
Moderate
Very Low
Moderate
Index
Score
cy
3.40
4.21
4.96
1.45
cm
cm
BANK EROSION HAZARD INDEX
Erodibility Variables
'Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
x z COnumbera� ,w co 7r e = _
0
S25-4 Riffle
0.1 1 10 100 1000 10C
particle size (mm)
—# of particles
---
�
-
)1
nulative %
CZ
C
j
a N
_ CO r u\;Am71- y ° — I
ueg
Size Distribution
£
$
Substrate Type
/
/
/
\
/
\La
sand
gravel
Jo
m
Ibedrock
wood/detritus
Eco
E
o
u»
wn
—
co
$
000000
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7}}
G±y
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E E
§%/\
CO
[/S
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((§\ (0
/[as /)
12
/7
)/[2
0
\o
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uEO0
Stream Profile 4: S25-4

MONITORING LOCATION S32-1 Tributary to Coffey Creek
c
/
§
/
\
k=
ƒ §
00
} 2
»t
k�
= ,
j/
=
0
q
0 CO
in
32-1 Riffle
Wbkf = 3.85 Dbkf = 1.50 Abkf = 5.78
0 5 10 1
Horizontal Distance (feet)
•• Bankfull Width — — Flood -Prone Width Water Surface
• Bankfull Indicators x Bank Pins
|
|
|
|
|
|
|
|
!
I
'
|
|
|
:
|
|
,:
|
|
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&6U _e
Stream Characterization
#/eco e)
}§k
\\o\\C 2
\\\§0
\- E
>�_-co
� as � Fr, g
£fe¥
2SE
/ek:/)e)
!&
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/S]=mm=
%No_co-
E °-c_c °
* t®°
k\?•oa.)
W-500
k]� !»<g
=:__e
Ȥ\I3a(
(§!) 2«
;=
«��2
(/) .9 5
-==22
/k#§2r
o > .2 a E
) G .5 o_ _c
\05\\)//\
'n\\ Eng
ccEo as
G£-g)og
' »a
--2\\
(/) > .2 ]
/§[\/®\§
*o\ r22
\E-020
®k/$])a
k)£/«=mn
]t)72k#'CT
Baseline Pre -Construction
Condition
1.0
4.2
3.6
0.45 (medium sand) I
E5
NCSAM score. The overall NCSAM score for monitoring location S32-1 was
High, indicating good stream function across all categories (hydrology, water
quality, and habitat). Two of three Class 1 stream functions (Hydrology and
Habitat) rated High, while Water Quality was rated Medium . All Class 2
functions were rated High except for aquatic life tolerance, which was rated
low. As an intermittent stream, aquatic life may not be present due to flow
impermenance.
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
Width/Depth Ratio
'Entrenchment Ratio
f
ID50 (mm)
Rosgen Stream Type
Stream Profile 5: S32-1

MONITORING LOCATION S32-1 Tributary to Coffey Creek
Right Bank
Erosion
Potential
High
High
Extreme
Moderate
High
High
i|@\§Gg7
A°°®®m
Left Bank
Erosion
Potential
Moderate
Low
Moderate
Very High
Moderate
Moderate
Index
Score
co
2.80
5.40
8.80
5.90
4
CV
BANK EROSION HAZARD INDEX
Erodibility Variables
'Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
S32-1 Riffle
number o e = at »e0
0
0
0 0 0 0 0 0 0 0 0 0
um,e;waoJt
0
0
0
Size Distribution
£
.72
$
Substrate Type
2
0
f
0
0
04.
sand
gravel
Ibedrock
wood/detritus
ƒ
3
%
7
\
w
o
$
000000
Stream Profile 5: S32-1

MONITORING LOCATION S32-2 Tributary to Coffey Creek
32-2 Riffle
Wbkf = 30.50 Dbkf = 1.35 Abkf = 41.32
0 5 10 15
Horizontal Distance (feet)
.• Bankfull Width — Flood -Prone Width Water Surface
• Bankfull Indicators x Bank Pins
|
|
|
:
|
(
|
>
|
.
Hr.
|
:
|
|
Om) u mg
Stream Characterization
$\\
2;{\))<
13 >.
(r2 • 2)
)75crs
;g7e%=
/0 8 8
$/]]�§
2.2 "-a 2 (
E/ c'cE
co §-0 2 E
(]«a 2 Ik2
\\\\C.2
22i//)\
H co „a' 0 o
0£kffk)
2k§\)/\
k77E/\E
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0
c_ °\(3)
\\7/
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k)f\f±\\k(°_a2
//• r)k\)
'2k�ka
co E[%/)o
!E°E g
__k{)k
k• ,77/'-
0) • TD
\\j_c
2e=e32e
Baseline Pre -Construction
Condition
7.1 (fine gravel) I
Rosgen Stream Type B4
NCSAM score. The overall NCSAM score for monitoring location S32-2 was
High, indicating good stream function across all categories (hydrology, water
quality, and habitat). Hydrology and Habitat (Class 1 functions) were both
rated High, but Water Quality was rated Low due to low rating for aquatic
life tolerance (Class 2). As an intermittent stream, aquatic life may be limited
due to flow impermenance. All other Class 2 functions were rated High
except for streamside area vegetation, which was rated Medium .
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
(Width/Depth Ratio
Entrenchment Ratio
f
ID50 (mm)
ƒ
Stream Profile 6: S32-2

MONITORING LOCATION S32-2 Tributary to Coffey Creek
Right Bank
Erosion
Potential
Very High
Moderate
High
Low
Very Low
Moderate
i|$)R\q@
£A°°»°—QCNI
Left Bank
Erosion
Potential
Moderate
Moderate
High
Low
Very Low
Moderate
Index
Score
5.02
7.30
3.17
1.45
BANK EROSION HAZARD INDEX
Erodibility Variables
!Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
number of
co co e m particles
0
0
0
0
0
0
\
\ •iiuuuu
}
` \ }
—
0 • 0 0 0 0 0 0 • 0 0 0 • 0
um,e;waoJ t
—cumulative %
Size Distribution
co
CNI
£
.72
$
Substrate Type
/
(§
,.5..R
f
K
(
sand
gravel
Ibedrock
wood/detritus
-E.S
a&
a
G
e
E
:
::
:
:
m
0
0
0
0
0
0
Stream Profile 6: S32-2

MONITORING LOCATION S34-1 Tributary to Coffey Creek
2
/
§
/
0
m
Ĥ
c
c o
g 0
/ 5
» t
k�
= ,
j /
k=
9/
• q
O CO
\
CO
0_
34-1 Riffle
Wbkf = 1.90 Dbkf = 0.22 Abkf = 0.42
0 5 10 15 20
Horizontal Distance (feet)
Bankfull Width — —Flood-Prone Width • Bankfull Indicators x Bank Pins
|/
|
|
1
#6u o pneg
Stream Characterization
• \• _ \\
Goys { % E / !92
\E/52 2
99 E E \
9,6)
{2 9
\E.(0\{)
\ \ - 2'6
6-55o )
\\\\\\\
• o5) 0Erz0
\ 12 o \
} E
\E :
}o5»2
• \E\\
}.00 0 0
}\J\:f/
2\§;\r
\ { 5 .9
(\}-cog
00 \»)§0
\ƒ5/i5
e§=
7{•0° 0_
\ �\\\\
°7[2tz3
°c - D
�\L= co
\}
_-°>,>-
{/\{&
\•26 5
5-5 5 2 8
\ E!{\j\
Baseline Pre -Construction
Condition
1.9
4.7
8.6
0.32 (medium sand) I
E5
NCSAM score. The overall NCSAM score for monitoring location S32-2 was
High, indicating good stream function across all categories (hydrology, water
quality, and habitat). This location had High or Medium ratings for most
stream function categories except for sediment transport (Class 4), Water
Quality (Class 1, likely due to Low rating for aquatic life tolerance), and
substrate (Class 3). As an intermittent stream, aquatic life may be limited
due to flow impermenance.
Parameter
Bankfull Width (Wbkf) (ft)
Floodprone Width(ft)
IBankfull Mean Depth (Dbkf) (ft)
Bankfull Max Depth (ft)
Bankfull Cross Sectional Area (Abkf) (ft2)
Width/Depth Ratio
'Entrenchment Ratio
f
ID50 (mm)
Rosgen Stream Type
Stream Profile 7: S34-1

MONITORING LOCATION S34-1 Tributary to Coffey Creek
Right Bank
Erosion
Potential
Very Low
Very Low
Very Low
Low
Very Low
Very Low
i0MM\7\a
£A
—
— —
°—
OS
Left Bank
Erosion
Potential
Very Low
Very Low
Low
Low
Very Low
Low
Index
Score
1.00
2.71
BANK EROSION HAZARD INDEX
Erodibility Variables
Bank Height / Bankfull Height Ratio
Root Depth / Bank Height Ratio
Weighted Root Density
Bank Angle
Surface Protection
Overall Score
number of particles
co co Tr N 0
0
0
0
0
0
0
)
{
)
/
;:,
3
)1 0.1 1
par
lative % —# of particles
\
----------
_
j
/
CS) CO r } u/;Ast
Size Distribution
co
co
£
$
Substrate Type
\
(
/
0
0
/
(
sand
gravel
Ibedrock
wood/detritus
E
§
3
%
%
1—
7
$
000000
Stream Profile 7: S34-1

2021 SCF In -Line Detention Basin Baseline Conditions Report I.)�
Charlotte Douglas International Airport
Appendix D
Field Data Forms
May 28, 2021

2021 SCF In -Line Detention Basin Baseline Conditions Report
Charlotte Douglas International Airport
This page is intentionally left blank.
May 28, 2021

Pebble Count Data Sheet 7 '3 —
Size categories
Silt/clay
Size ranges (mm)
Very fine sand
Fine sand
< 0.06
0.06 — 0.125
Tallies (counts)
Stations
0.126 — 0.25
Medium sand
0.26 — 0.5
Coarse sand
Very coarse sand
Very fine gravel
0.5 — 1
r
1-2
2-4
Fine gravel
Medium gravel
5-8
9-16
Coarse gravel
Very coarse gravel
Small cobble
17-32
33 - 64
Medium cobble
Large cobble
65 - 90
1_1
91 - 128
s •
•
129 - 180
• •
% o
Very large cobble
181 - 255
e
Small boulder
256 - 512
Medium boulder
513 - 1024
7
S
Large boulder
Very large boulder
1025 — 2048
> 2048
Bedrock
Woody debris
Large unbroken rock
surface
Leaves, sticks etc.
10
Indicate the method used below Total count
Zigzag
% Habitat
Transects/Stations
(Enter your tape position)
!00
% Channel features (Estimate)
Riffles Runs Pools
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream: —1
Station:
Date: j
! '
Location: CLT F
Observers: A131-? Gg r;
Stream Type: Pe(elnwIJ Valley Type:
Study
Bank
Height (ft)
tQ 5 A)
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Bankfull
Height
(ft) =
L.;
(S)
(A)/(B)=
Root Depth / Study Bank Height ( E
Root
Study
Depth
'
Bank
''`•:
(D)/(A)
D,3 o
5,3c
(ft) =
.3
(D)
Height (ttl=
?t
(A)
(E)
Weighted Root Density ( G
Root
-
Density
as % _
��
(F)
(F)x(E) _
i7
IfG)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
i
Bank Angle (H )
Bank
Angle
as Degrees =
O'4+)
Surface Protection
)
Surface
Protection
as % =
/5 ( I )
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
r, GO
Bank Material
Adtustment
11
Very Low
Low
Moderate /High
Very High
5 — 9.5
10 — 19.5
is 5
4j 3
2
1 ---
0
20-29.5,1 30-39.
Extreme
40 — 45 46 — 50
Adjective Rating 1....E.L§Li.
and
Total Score 39. / 3
Bank Sketch
2 3 4
Horizontal distance (ft)
B
Bankfull
Q —
m
Y Tr,
c v
""co
m'
7
7E
7
Z
f..--T"•
tv
: i Root
epth (D)
Copyright © 2006 Wildland Hydrology
Bank
Angle
SH)
v0
't U
o°1
o
d
Start
of
Bank
WARSSS page 5-56

Worksheet 5-5. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Fogtare 5-19 with BEHI variables to determine BEHI score.
Stream:
Station: 14' 10 6V0,
(S424
Date: '
Study
Bank
Height oti=
l l•:(A)
Location: 02
Observers: 1r7 f ;<<,r
Stream Type: prkov+ koi Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Bankfull
Height
(it} =
(B)
(A)/(B)=
Root Depth / Study Bank Height ( E
Root
Study
Depth
(ft) =
..
c-.! L (D)
Bank
Heightf0) _
ii --,
/(b -r (A)
(D)/(A)-
O:7-1
(E)
S—
Weighted Root Density ( G
Root
Density
as % =
(F)
(F)x(E) =
0,-)
(
(G)
'
(4(
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Very Low
Low
Moderate
High
Very High
Extreme
Vertical distance (ft)
5-9.5 110-19.5 1 20-29.5
12
11
10
9
a
7
6
5
4
3
2
0
0
Bank Sketch
30-39.5I. 40-45
2 3 4 5 6
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
46-50
Bank Angle (H )
Bank
Angle
as Degrees
I: C.(H)
Surface Protection (I )
Surface
Protection
as% =
in (1)
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
177
Adjective Rating IV_ ( 1Nlhl
and
Total Score 3 4 `-1, (0 9
WARSSS page 5-56

Applied Fluvial Geomorphology
Day 2: Field Day
SURVEY DATA r CROSS o SECTION
SITE: -,2 i_I (SC F Date: 4f 5 /2
Location: 0 r0
Party / Notes: HUC:,
___
__
Distance,
1 Height
of
REMARKS
Point, or
Back -Sight Instrument
Fore -Sight
COMMENTS
STATION
B S H I
F S
Elevation
NOTES
Item
ft
ft ft
ft
ft
L
1 1i
3 .13
2 a
ig
33�
3 a
3 k
-Feioar CT
4 (� cp
p 3 Z-
,
5 c7, 5
6
7 S,
c2 I
f,_
8
,J,O J)
9
., tJ 1 {7
10 %
(b q6
r
12 /irAli
G T5
13 /.3 5
10 (J
14 /'J q
) o
15 i ,,
l 0 ( ,
16
/ , b23
17 Jg ,3
J f , E'
(�
18•0,
//„cf
19 Z2 0
2;
20 . � -
/.2oJ,
21''
'T
22 ),
/2 0
23 �s 8
_r
24 02� , f
/�'
25 a.ioq.
i ..
26 . '•
la. .
/Z
27 • (c
t. a"
28 :;=.).
i fOcj
A22 Copyright © 2015 Wildland Hydrology

Applied Fluvial Geomorphology
Day 2: Field Day
SURVEY DATA f C ?OSS o BEC'T1ION
SITE: Q .. Date:
STATION
B S H I F S
Elevation
NOTES
COMMENTS
R AR/ S
ItemL ft
ft tt a
ft
29 33°i3 ).2,3 A
30 0 /0
. 31 1/ •
jj
32 3gn 0 / �o 16
33 i '?
34 ,n
35 (/a..
36 i/
L e)
37 —gm. .
38 *_
39 L6tiCt C, 6J
40 q60 g - 0m l l n ,f -' nrooa
Oex)Q.r
41 7a 7 00 �8
42 i 07_ ♦ . (k)
at
43 S ` .�� �1.
- (I
44 5
45 g g p ) I
46 ,2, :2S
47 s l . .0
48 r
��TZ
49 n 03!
e, -- riot
M1 ;tr.
(____,
O
53
54
55
56
57
58
59
f
Copyright © 2015 Wildland Hydrology
A23

Pebble Count Data Sheet
05: v L( 30
Size categories
Silt/clay
Size ranges (mm)
Tallies (counts)
< 0.06
Very fine sand
Fine sand
0.06 — 0.125
Medium sand
0.126 — 0.25
•
Stations
0.26 — 0.5
Coarse sand
Very coarse sand
Very fine gravel
Fine gravel
Medium gravel
0.5 — 1
1-2
2-4
O da
5-8
•
9-16
Coarse gravel
17-32
y
Very coarse gravel
33 - 64
Small cobble 65 - 90
Medium cobble
Large cobble
Very large cobble
Small boulder
91 - 128
a O
129 - 180
8
181 - 255
p 4
s
256 - 512
Medium boulder
Large boulder
Very large boulder
513 - 1024
0
1025 — 2048
> 2048
Bedrock
Woody debris
Large unbroken rock
surface
9
Leaves, sticks etc.
Indicate the method used below Total count
Zigzag
% Habitat
Transects/Stations
(Enter your tape position)
(00
% Channel features (Estimate)
Riffles Runs Pools
10
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream: c15
Station: �r- kx,A4--5
Date: e4/ zc +r ,.i
Stream Type: Prorkv+u+,C
Location:
Observers: /1 i r��t
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19
Study
Bankfull
•'�
Bank
Height
(A) / (B) =
3'T•
Height (ft) =
;, t', ( (A)
(ft) =
--T—, (B)
(C) ,
�.
Root Depth 1 Study Bank Hei€tht { E
Root
Study
Depth
(ft) =
5-
-._{D)
Bank
Height (ft) =
e
!
(A)
(D)/(A)_
O%(o2
(E)
1 Z�
Weighted Root Density ( G
Root
'
Density
(F)x(E) _
��_�'P
< gg
as%=
� (F)
(G)
'sd'-- M
Bank Material AdLstment:
Bedrock (Overall Very Low BEHI) - r•- Bank Material
BankAngle(H)
Bank
Angle
as Degrees
IC,: (H)
Surface Protection (I )
Surface
Protection
as% _ ( I )
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Very Low
Low
I�1
Moderat 1 High
5-9.5 10-195 20-29
ca
c.7
GI
12
11
10
a
7
6
5
4
3
2
0
Bank Sketch
30 - 39.5
Very High J Extreme
40-455-7 46-50
0 1 2 3 4 5 6
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
r
Bankfull
Adjective Rating
and
Total Score
Root
epth (D)
Bank
Angle
.SH)
O
't a0i
7
N O
Start
of
Bank
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream
Station:
Location: ELT- �(. , -
Observers:
Date:
Stream Type: ptl'ov„,A„j Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C (Fig. 5-19
Study
Bankfull
Bank
Height
(A) l (B) =
v • ��
`
Height (ft) _
703- r (A)
(ft) _
�- 7T (B)
(C)
Root Depth / Study Bank Heictht ( E
Root
Study
`
Depth
//
Bank
(D) / (A) =
0:11
(ft) =
be� (D)
Height (ft) =
«~
i
(A)
(E)
Weighted Root Density G
Root
Density
�}�
(F)x(E) _
5‘.%3
(Al
as%=
T (F)
(G)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Bank Angle (H )
Bank
Angle
as Degrees =
Surface Protection (I )
Very Low Low oderate, High I Very High
5-9.5 110-19.5 20-2'J 30-39.5 1 40-45
r f
Bank Sketch
Vertical dista
12
11
10
9
8
7
6
5
4
3
2
1
0
0
2 3 4
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
5
8
Extreme
46-50
Surface
Protection
as % =
9/0(I)
Bank Material
Ad ustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
¢ t—A
Bankfull
Adjective Rating MObER ITT
and
Total Score
Z_9-,D1
Root
spilt (D)
Bank
Angle
•(H)
U O
� U
� w
to O
d
Start
of
Bank
WARSSS page 5-56

NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USACE AID #: NCDWQ #
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" 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 an r`° 2. Date of evaluation: { j
3. Applicant/owner name: (� ]�} 4. Assessor name/organization:' F 6410,k►, m tjt'
5. County: fop
6. Nearest named water body
7. River basin: - .4,Jb{ on USGS 7.5-minute quad: (yyy_.
8. Site coordinates (decimal degrees, at lower end of assessment reach): 3 S- 19j i 9 . - irQ (4 .4 3 c-;
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): ,, "'-' 10. Length of assessment reach evaluated (feet)- 1`}.()
11. Channel depth from bed (in riffle, if present) to top of bank (feet): ' ] ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 5 4, 3 13. Is assessment reach a swamp stream? ❑Yes ONo
14. Feature type: NPerennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ['Mountains (M) EPiedmont (P)
16. Estimated geomorphic
valley shape (skip for
Tidal Marsh Stream):
Dinner Coastal Plain (I)
©a ` J ❑b
(more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
❑Outer Coastal Plain (0)
17. Watershed size: (skip ['Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mi2) ®Size 3 (0.5 to < 5 mi2)
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
['Essential Fish Habitat
['Publicly owned property
❑Anadromous fish
['Classified Trout Waters
❑Primary Nursery Area
®NCDWQ riparian buffer rule in effect
0303(d) List
['Size 4 (z 5 mi2)
❑ Water Supply Watershed (❑I ❑II ❑III ❑IV ❑V)
El High Quality Waters/Outstanding Resource Waters
❑ Nutrient Sensitive Waters
❑ 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? Dyes No
1. Channel Water - assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
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 A
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
IJC > 25% of channel unstable
vi i

6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
❑ B ❑B
Little or no evidence of conditions that adversely affect reference interaction
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
7. Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
❑A
❑B
❑C
❑ D
▪ E
❑ F
G
❑H
❑ 1
120
Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
Excessive sedimentation (burying of stream features or intertidal zone)
Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
Odor (not including natural sulfide odors)
Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes" section.
Livestock with access to stream or intertidal zone
Excessive algae in stream or intertidal zone
Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
Other: (explain in "Notes/Sketch" section)
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 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 11)
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
(including liverworts, lichens, and algal mats)
Multiple sticks and/or leaf packs and/or emergent
vegetation
Multiple snags and logs (including lap trees)
5% undercut banks and/or root mats and/or roots
in banks extend to the normal wetted perimeter
Little or no habitat
I JB
C6C
❑ E
11. Bedform and Substrate — assessment reach metric
OF
DG
DH
❑I
DJ
OK
5% oysters or other natural hard bottoms
Submerged aquatic vegetation
Low -tide refugia (pools)
Sand bottom
5% vertical bank along the marsh
Little or no habitat
11a. ❑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). (skip for Tidal Marsh Streams)
CIA Riffle -run section
❑ IB Pool -glide section
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
1lc. 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
® 0 ❑ ❑ ❑ Bedrock/saprolite
O EI 0 0 0 Boulder (256 — 4096 mm)
❑ 0 0 0 0 Cobble (64 — 256 mm)
❑ ❑ 0 0 ® Gravel (2 — 64 mm)
❑ © 0 0 0 Sand (.062 — 2 mm)
0
❑ ❑ ❑ Silt (< 0.062 mm)
❑ ❑ 0 0 Detritus
[� 0 ❑ ❑ 0 Artificial (rip -rap, concrete, etc.)
11d ❑YesjNo Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
viii

*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR 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. L jYes ❑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
❑ EAquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ ©Beetles (including water pennies)
❑ EfCaddisfly larvae (Trichoptera [T])
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans (true flies)
❑ ['Mayfly larvae (Ephemeroptera [E])
❑ ❑Megaloptera (alderfly, fishfly, dobsonfiy larvae)
❑ E1Midges/mosquito larvae
❑ ®Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ['Other fish
❑ ❑Salamanders/tadpoles
O OSnails
O ❑Stonefly larvae (Plecoptera [P])
O ❑Tipulid larvae
❑ ❑Wormslleeches
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
L ,A ❑A Little or no alteration to water storage capacity over a majority of the streamside area
L.J3 ❑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 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 Unaltered or majority of streamside area with depressions able to pond water >_ 6 inches deep
®1 L ]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?
[kjN ]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.
CS]A Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
❑D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
QjE Stream bed or bank soil reduced (dig through deposited sediment if present)
OF 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)
ED Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
❑E Assessment reach relocated to valley edge
❑ F None of the above
18. Shading - assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -an" condition.
IJA Stream shading is appropriate for the stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
Ix

19. Buffer Width — assessment 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
EA ❑A [IA L IA Z 100 feet wide or extends to the edge of the watershed
B UB ❑B OB From 50 to < 100 feet wide
❑ C ❑C ❑C ❑C From 30 to < 50 feet wide
❑D ❑D ED ❑D From 10 to < 30 feet wide
❑ E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure
Consider for left
LB RB
�A :]A
B DIB
EC ❑C
❑D ❑D
❑ E ❑E
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 no stressors, check here and skip to Metric 22: ©No Stressors
Abuts < 30 feet
LB RB LB RB
❑A ❑A ❑A ❑A
❑B ❑B ❑B ❑B
❑ C ❑C ❑C ❑C
❑ D ❑D ❑D ❑D
30-50 feet
LB RB
❑ A ❑A
❑B ❑B
❑C ❑C
❑ D ❑D
Row crops
Maintained turf
Pasture (no livestock)/commercial horticulture
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
DA DA Medium to high stem density
❑ B ❑B Low stem density
❑C EC 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
❑B ❑B
EC EC
The total length of buffer breaks is < 25 percent.
The total length of buffer breaks is between 25 and 50 percent.
The total length of buffer breaks is > 50 percent.
24. Vegetative Composition — First 100 feet of 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.
0B EB 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.
EC EC 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 EC 67 to < 79 ED 79 to < 230 ❑E z 230
Notes/Sketch:
x

S25-2 Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/30/2021
Stream Category Pa3 Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
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 MEDIUM
(3) Stream Stability MEDIUM
(4) Channel Stability LOW
(4) Sediment Transport HIGH
(4) Stream Geomorphology MEDIUM
(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 HIGH
(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 HIGH
(2) Intertidal Zone Filtration NA
(1) Habitat HIGH
(2) In -stream Habitat HIGH
(3) Baseflow HIGH
(3) Substrate HIGH
(3) Stream Stability LOW
(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

Applied Fluvial Geomorphology
Day2: Field Day
°IOl
SURVEY DATA i CROW oB2C.1
SITE: C�T SC F Date: tiI ?
IA
Location: 05 - 3
!
Party / Notes: HUGE]
Distance,
Point, or
STATION
Back -Sight
B S
Height of
Instrument
H I
1
Fore -Sight
F S
Elevation
REMARKS
COMMENTS
NOTES
Item
ft
ft ft
tf
ft
J
1
i o 3
f5. 54
,c{ a-r-+3 @ (ti 3
2
1/r 0
- —
( 2.
I— —TO_
3
. g
_.
4
/QoQ
cz3(.
L__ZK-F
6 Jzb
7/32.
8
122 6S
13 25,
14 Z6).-4-
15 DB3
16 30-(7
17 ,3/ 5
18 32, /
19 33.3
20 ,3 f,
21 z{{5aD
26
27
28
A22
3S
I a�
.53
10- 01
tooz-Z
10.0
/a•��
9-7/
62
1
TTO
e.E
Copyright © 2015 Wildland Hydrology

Applied Fluvial Geomorphology
Day 2: Field Day
SURVEY DATA
SITE: 25
STATION
item! ft
_29 L1S=, L-4
30L-R.,„
02.
31 /Y2,5
32
33
34
35
36
37
BS
ft
HI
CROSS S o SECTION 2
F S Elevation
ft ft
Date: LI
NOTES
COMMENTS_
49/
REMARKS
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
Copyright © 2015 Wildland Hydrology
A23

Pebble Count Data Sheet
Size categories
Silt/clay
Very fine sand
Fine sand
Size ranges (mm)
< 0.06
0.06 — 0.125
Tallies (counts)
0.126 — 0.25
Medium sand
Coarse sand
0.26 — 0.5
Stations
Very coarse sand
Very fine gravel
Fine gravel
0.5 — 1
1-2
2-4
•
0 e
5-8
Medium gravel
Coarse gravel
Very coarse gravel
Small cobble
9-16
17-32
33-64
5
65-90
0 ■
0
Medium cobble
Large cobble
Very large cobble
91 - 128
129 - 180
181 - 255
Small boulder
256 - 512
Medium boulder
Large boulder
Very large boulder
513 - 1024
1025 — 2048
> 2048
Bedrock
Woody debris
Large unbroken rock
surface
Leaves, sticks etc.
10
Indicate the method used below Total count
IO(o
I Zigzag % Channel features (Estimate)
I % Habitat Riffles Runs Pools
Transects/Stations
(Enter your tape position)
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream: p25 -3
Station:
Date:
kant
Location: cL,T--i
Observers: 11 rn s
7] Stream Type: Valley Type: Ls
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Study
Bankfull
Bank
Height (rt) =
rr --7�,'
12 k2(A)
Height
(ft) _
�. 3s (B)
(A) / (B) -I l i-r
- (C)
44
Root Depth / Study Bank Height ( E
Root
Study
l�
Depth
=
❑6(D)
Bank
Height lft) =
//
�b 02. (A)
(D) / (A) =
O,
(E)
.--a(ft)
eighted Root Density ( G
Root
Density
(F) x (E) =
(I:Zb
as /o=
�--)
(F)
(G) I
Q i '1-
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)'
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
Bank Angle (H )
Bank
Angle
as Degrees _=
(H)
Surface Protection [ l
Surface
-
Protection
I \'1
S
as% =
9 (l)
Bank Material
Adjustment
1'
Very Low Low
(
5-9.5 10-19.5
12
11
10
9
8
m 7
In 6
co5
4
3
2
1
0
0
Mo•er:. High Very High Extreme
Sketch
2 3 4
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
5
6
Bankfull
Adjective Rating MQDE r'E
and
Total Score [2-4•:,!:2
Root
eptli (Q)
co-. ".0 Bank
o � Angle
Sti)
J qj r SCD C
i ; I U 2
ai/ 't U
Start
of
Bank
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Fogure 5-19 with BEHI variables to determine BEHI score.
Stream: p) S ,,3
Station:
Date:
iik
7 Stream Type:
Location:
Observers:
Valley Type:
&Y ScF
i{ 3m �g-S
BEHI Score
Study Bank Height / Bankfull Height (C) (Fig. 5-19)
Study
Bankfull
Bank
//
Height
(A) / (B) =
2-1
(fu Height =
10.. 2.tA)
(ft) =
Dra l04f (!3).
(C)
T- 1 1
Root
Depth
(ft)
Study
Bank
Height(fq
Root Depth / Study Bank Height ( E )
(D)/(A)=
0.40
(E)
Weighted Root Density ( G )
Root
Density
as
LiC) (F)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
J
(F)x(E) =
I1c.00
(G)
Bank Angle ( H
Bank
Angle
s
as Degrees =
�.) (HI
Surface Protection [ l
Surface
Protection
4/QI)_
41.0as%
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
Very Low
Low
Moderate
igh l Very High Extreme
5-9.5 10-19.5 20-29.5 130-3
12
11
10
9
• 8
m 7
`^ ▪ 6
'm 5
• 4
3
2
1
0
0
Bank Sketch
40-45 1 46-50
2 3 4
Horizontal distance (ft)
6
Bankfull
Copyright © 2006 Wildland Hydrology
Adjective Rating
and
Total Score
al £ilt) Bank
>- ; Angle
HI�,H
37-, L(:
Reel
epth (0)
Y �
0
c)
a_
Start
of
Bank
WARSSS page 5-56

NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USAGE AID #: NCDWQ #
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of li,e tJSGS 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" 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: j
1. Project name (if any): (1�T ,SCE. 2. Date of evaluation: e1-��� ! Q /
3. Applicant/owner name: y�) } � 4. Assessor namelorganizatro : 1 E ), I& - fib R
5. County: M2L1� 6. Nearest named water body
7. River basin: on USGS 7.5-minute quad: (L0'44y rvakk
8. Site coordinates (decimal degrees, at lower end of assessment reach): 3S', 191 s oi, - so 1'4 1/41 rr•
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): -.3 10. Length of assessment reach evaluated (feet).
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 4. b D. Unable to assess channel depth.
12. Channel width at top of bank (feet): 43-to 13. Is assessment reach a swamp stream? ❑Yes CSNo
14. Feature type: DtPerennial flow ❑Intermittent flow ['Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑Mountains (M) ®Piedmont (P) Dinner Coastal Plain (I) DOuter Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for ( a 4 ❑b
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 mi2) ®Size 3 (0.5 to < 5 mi2) ['Size 4 (Z 5 mi2)
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 (❑I Ell ❑III ❑IV EV)
['Essential Fish Habitat ['Primary Nursery Area ❑High Quality Waters/Outstanding Resource Waters
['Publicly owned property ®NCDWQ riparian buffer rule in effect ['Nutrient Sensitive Waters
❑Anadromous fish 0303(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 informationlsupplementary measurements included in 'Notes/Sketch" section or attached? Dyes L NVo
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).
[K].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 A
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
[hose disturbances).
`KB 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
10 to 25% of channel unstable
> 25% of channel unstable
V I I

6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
LA ❑A
❑B 2113
Little or no evidence of conditions that adversely affect reference interaction
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
7. 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" section.
OF Livestock with access to stream or intertidal zone
EG Excessive algae in stream or intertidal zone
EH Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
01 Other: (explain in "Notes/Sketch" section)
RI 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
Drought conditions and rainfall exceeding 1 inch within the last 48 hours
No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes No Is stream 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 [X,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 11)
10b. Check all that occur (occurs if > 5% coverage of assessment reach)
Multiple aquatic macrophytes and aquatic mosses
(including liverworts, lichens, and algal mats)
EIB Multiple sticks and/or leaf packs and/or emergent
vege:;alion
�C Multip'e snags and logs (including lap trees)
®D 5% undercut banks and/or root mats and/or roots
in banks extend to the normal wetted perimeter
❑E Little or no habitat
- 0
F �
2y
x t
Si!
(skip for Size 4 Coastal Plain streams)
❑F 5% oysters or other natural hard bottoms
❑G Submerged aquatic vegetation
❑H Low -tide refugia (pools)
❑l Sand bottom
❑J 5°I0 vertical bank along the marsh
❑K Little or no habitat
11. Bedform and Substrate — assessment reach metric
11a. [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). (skip for Tidal Marsh Streams)
EA Riffle -run section
❑B Pool -glide section
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11c. In riffle sections, check all that occur below the normal wetted perimeter of the
Check at least one box in each row (skip for Size 4 Coastal Plain streams
absent, Rare (R) = present but < 10%, Common (C) _ > 10-40%, Abundant (A) =
percentages should not exceed 100% for each assessment reach.
NP R C A P
❑ ❑ El❑ Bedrock/saprolite
gl ❑ ❑ Boulder (256 — 4096 mm)
❑ ® ❑ ❑ ▪ Cobble (64 — 256 mm)
❑ ❑ ❑ ®A Gravel (2 — 64 mm)
❑ ❑ ▪ ❑ ❑ Sand (.062 — 2 mm)
❑ IP ® [� ❑ Silt (< 0.062 mm) -4- cam,...
® St ❑ ❑ Detritus
6 ❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ❑Yes gfslo Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
VIII
assessment reach — whether or not submerged.
and Tidal Marsh Streams). Not Present (NP) =
> 40-70%, Predominant (P) _ > 70%. Cumulative

***"`*****************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS**************************
12. Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes *Jo 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. gYes ❑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 (including water pennies)
❑ ECaddisfly larvae (Trichoptera [T])
❑ Asian clam (Corbicula)
❑ [1Crustacean (isopodlamphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans (true flies)
❑ ❑Mayfly larvae (Ephemeroptera [E])
❑ ❑Megatoptera (alderfly, fishfly, dobsonfly larvae)
❑ [Midges/mosquito larvae
O ®Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ®Other fish
O ❑Salamanders/tadpoles
❑ `]ZSnails
❑ ❑Stonefly larvae (Plecoptera [P])
❑ F,,Tipulid larvae
❑ L Warms/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.
®AA 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 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 DA Unaltered or majority of streamside area with depressions able to pond water z 6 inches deep
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?
KIN 1 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.
[IA Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
t 17 Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
IF Stream bed or bank soil reduced (dig through deposited sediment if present)
O 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)
EB Obstruction not passing flow during low -flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
• Urban stream (>— 24% impervious surface for watershed)
❑ D Evidence that the streamside area has been modified resulting in accelerated drainage into the assessment reach
LE Assessment reach relocated to valley edge
❑ F None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
CInsider aspect. Consider "leaf -on" condition.
A Stream shading is appropriate for the stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑C Stream shading is gone or largely absent
ix

19. Buffer Width — assessment 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 R§ LB RB
kjA al A MA Lj'A Z 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
ED LID ❑D ❑D From 10 to < 30 feet wide
❑E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure
Consider for left
LB RB
N A DA
❑B ❑B
❑C ❑C
❑D ❑D
❑E ❑E
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 Peet of stream (30-50 feet).
If no stressors, check here and skip to Metric 22: [ Nr. Stressors
Abuts < 30 feet
LB RB LB RB
❑A ❑A ❑A ❑A
❑B ❑B ❑B ❑B
❑C ❑C ❑C ❑C
❑D ❑D ❑D ❑D
30-50 feet
LB RB
❑A ❑A
❑B ❑B
❑C ❑C
❑D ❑D
Row crops
Maintained turf
Pasture (no livestock)/commercial horticulture
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
[EA NIA 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
EA EA 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 — First 100 feet of 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
DA ❑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 EtNo Was conductivity measurement recorded?
If No, select one of the following reasons. EINo 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 z 230
Notes/Sketch:
x

S25-3 Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/29/2021
Stream Category Pa3 Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
Perennial
USACE/ NCDWR
Function Class Rating Summary All Streams Intermittent
(1) Hydrology MEDIUM
(2) Baseflow HIGH
(2) Flood Flow MEDIUM
(3) Streamside Area Attenuation HIGH
(4) Floodplain Access HIGH
(4) Wooded Riparian Buffer HIGH
(4) Microtopography MEDIUM
(3) Stream Stability LOW
(4) Channel Stability LOW
(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 HIGH
(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 HIGH
(2) Intertidal Zone Filtration NA
(1) Habitat HIGH
(2) In -stream Habitat MEDIUM
(3) Baseflow HIGH
(3) Substrate LOW
(3) Stream Stability LOW
(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

Applied Fluvial Geomorphology
Day 2: Field Day
*
SURVEY DATA 1 CROW o SECTION 1
SITE: Date:
Location: 2, -zi
Party / Notes: HUC:
__
__
__
.W
_
__
_
T
Distance,
Point, or
STATION
Back -Sight
B S
Height of
Instrument
H I
1
Fore -Sight
F S
(-- 1
REMARKS
COMMENTS
Elevation
NOTES
ft
\--
Item
ft
ft
ft
ft
1
` %
°C)
' SaCini
— (
j}e 31
i(A. --1;c2-+-�
i r) C
2
,--
, f, ,'1'f-
3
Q
4
ar ciS
tf,q
5
5 ,.�"
5, 2 '
1
7
g,0
3,0-z__.
8
q p c(
5 2)
b, IQ
6.,1610
9
1 o
(1, 10
5,,
0
L-.10L
11
1..0%3..
r 1-e-
12
13.0
( t2
i54
7.
L 1/V
_13
14
/ 5, /©
to. 29'
15
15
- /
,
as
16
f705/
��CD.
i t�
17
Ts 6 j
3) I
I5
18
fr�
(,�19
`
S.R2
20
70,7
42X)5
21
2 f o
0
5j
-
22
.. q'
800)
23
23.1-f'
24
(23, /O
? 84--
25
251.44
7.�
26Q`)6L
27
.0
''•y
28
eS.
d c-7
A22 Copyright © 2015 Wildland Hydrology

Applied Fluvial Geomorphology
Day2: Field Day
'
SURVEY DATA i -- CROW o . e�1'.IZoiv 2
SITE: 025 _ 9- Date: /A9
-
r �7
STATION
B S
H I
F S
Elevation
NOTES
RE1
COMMENTSMARKS
Item I ft
ft
ft
_
ft
ft
,
,
29
--
2yock)
30
03,6g
31
2 '
goo
TL
32
p /
_
cg»a
33
/„,
q Q65
34
00
41-ic
353Q
go16
37310I
goi0
9(.
1-6K-F-
39
32-. Q
— 0e 1�'e
'�
- f,� 9
_
0
8'C��` veatk
40
EX Jij
t
79/L[-
41
31+„, ,
7 15
42
� / I
63.
DD--a 1�..-t-o[2j
43
0
/2b
‘2JCOLr i Ir']
44
p
(o-S`_
45
Lilo/C
‘03
1
46
c .78
47
LJo (
(0S5
48
7�
5.c0
49
50
51
52
53
54
55
56
57
58
59
Copyright © 2015 Wildland Hydrology
A23

Pebble Count Data Sheet
Size categories Size ranges (mm)
Silt/clay
< 0.06
Very fine sand
0.06 — 0.125
Fine sand 0.126 — 0.25
Medium sand
0.26 — 0.5
Tallies (counts)
Stations
Coarse sand
0.5 — 1
Very coarse sand
1-2
Very fine gravel
2-4
e.s
O 0
Fine gravel
5-8
4
Medium gravel
Coarse gravel
9-16
17-32
Very coarse gravel
33 - 64
0
Small cobble
65 - 90
Medium cobble
91 - 128
Large cobble
129 - 180
O o
ra a
Very large cobble
181 - 255
Small boulder
Medium boulder
256 - 512
o
a d
•
513 - 1024
� o
Large boulder
1025 — 2048
Very large boulder
> 2048
Bedrock
Large unbroken rock
surface
Woody debris
Leaves, sticks etc.
i
o ,
9
Indicate the method used below Total count
Zigzag
% Habitat
Transects/Stations
(Enter your tape position)
(Oi
% Channel features (Estimate)
Riffles
Runs Pools
10
Enter she tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream:
Station:
Date: (Z9 G 2 (
Stream Type:
Study
Bank
Height (ft) =
ZpC1 (A)
Bankfull
Height
Location: C.LL. sc
Observers:
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
I‘4b
(C)
/t-75 (B)
(A)/(B)=
Root Depth / Study Bank Height ( E )
Root
Study
Depth
` —7
Bank
0(D)/(A)=
oi/4°
t, di)
(ft) =:
l�'l5(D)
Hecht (ft) =
a . / (A)
(E)
.1, .
Weighted Root Density ( G )
Root
Density
(F)x(E) =
��
as % _
(F)
(G)
7.1)
BankAngle(H)
Bank
Angle
as Degrees =
7.0
trn (H)
Surface Protection (I )
Surface
Protection
as % =
Bank Material Adjustment:
It4 -
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Low M'ciderate High Very High Extreme
Copyright © 2006 Wildland Hydrology
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
Bankfull
Adjective Rating ,IL/00 0__
and _-�'
Total Score j d0, 23
Q
Y
0
cn
Root
eplh (0)
Bank
Angle
��
O O
't
fl
CO O
a`
Start
of
Bank
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream:
Station:
Date: �/2-' 2/ Stream Type:
Study
Bank
Height (ft).
Lai,)
Location:
Observers:
Valley Type:
CL_T- 3 C F
46r11 F
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Bankfull
Height
(f1) _
( A ) / ( B ) =
I,9-2
(c)
Root Depth / Study Bank Height ( E
lomS
Root
Study
Depth
(ll) =
• 4 (D)
Bank
Height (ft) =
202. (A)
(D)/(A)=
17. 4`7.5-3
(E)
Weighted Root Density ( G )
Root
Density
as % =
90 (F)
Bank Material Adtustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
(F)x(E) = r'
(G),,
Bank Angle ( H
Bank
Angle
as Degrees =
Surface Protection (I )
Surface
Protection
as % =
()0
I,00
Very Low
Low ll(t6dera
10-19.5
Vertical
9
8
High
Stratification Adjustmentil
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
Bank Material
Adjustment
Very High Extreme Adjective Rating 1_l(IaIEgy�
and AP-aT
Total Score
30 — 39.5 1 40 — 45 46 — 50
Bank Sketch
7 —
6-
5
4
3
2
1
0
0
2 3 4 5 6
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
Bankfull
Root
epth (D)
aa�I
oo — �. '� Bank
t
m x. `+ Angle
' i .SH)
(1) o
o_
Start
of
Bank
WARSSS page 5-56

NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USAGE AID #: NCDWQ #
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" 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): (LT C t
3. Applicant/owner name: ct,INA
2. Date of evaluation: '-f i 121
4. Assessor name/organization:
5. County:Lk14t.-114 w .y 6. Nearest named water body
7. River basin: Clad b-p` on USGS 7.5-minute quad: C (ystBk..
8. Site coordinates (decimal degrees, at lower end of assessment reach)s �-1lytaj .��, 1 y iQ (p
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): a s----.10. Length of assessment reach evaluated (feet): QUO
11. Channel depth from bed (in riffle, if present) to top of bank (feet): P R ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): A3,05 13. Is assessment reach a swamp stream? EYes No
14. Feature type: ®Perennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑Mountains (M) [Piedmont (P)
16. Estimated geomorphic
valley shape (skip for
Tidal Marsh Stream):
['Inner Coastal Plain (I) DOuter Coastal Plain (0)
Oa \� J ❑b
(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 mi2) ['Size 4 (Z 5 mi2)
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 Ell ❑III ❑IV EV)
['Essential Fish Habitat ❑Primary Nursery Area ❑High Quality Waters/Outstanding Resource Waters
['Publicly owned property ®NCDWQ riparian buffer rule in effect ENutrient Sensitive Waters
❑Anadromous fish 0303(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 informatlon/supplementay measurements included in "Notes/Sketch" section or attached? Oyes ®No
1. Channel Water - assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
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)
MB 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).
IB NotA
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).
MB NotA
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).
< 10% of channel unstable
❑B 10 to 25% of channel unstable
❑C > 25% of channel unstable
vii

6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
❑A ❑A
f[iB ®B
Little or no evidence of conditions that adversely affect reference interaction
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])
�JC ❑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
7. 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" section.
O 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.)
❑I 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 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 11)
10b. Check all that occur (occurs if > 5% coverage of assessment
[$A Multiple aquatic macrophytes and aquatic mosses
(including liverworts, lichens, and algal mats)
[ B Multiple sticks and/or leaf packs and/or emergent
vegetation
• Multiple snags and logs (including lap trees)
®D 5% undercut banks and/or root mats and/or roots
in banks extend to the normal wetted perimeter
❑E Little or no habitat
11. Bedform and Substrate — assessment reach metric
reach) (skip for Size 4 Coastal Plain streams)
OF 5% oysters or other natural hard bottoms
❑G Submerged aquatic vegetation
❑H Low -tide refugia (pools)
01 Sand bottom
❑J 5% vertical bank along the marsh
OK Little or no habitat
C '
U
11a. ['Yes J$No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es). (skip for Tidal Marsh Streams)
I3jA Riffle -run section
❑B Pool -glide section
EC Natural bedform absent (skip to Metric 12, Aquatic Life)
11c. 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
❑ 0 IN ❑ um Bedrock/saprolite
❑ Al ❑ I 0 Boulder (256 — 4096 mm)
❑ 0 IA 0 0 Cobble (64 — 256 mm)
❑ Ail ® 0 0 Gravel (2 — 64 mm)
[1 2r 0 0 0 Sand (.062 — 2 mm)
f? 0 0 El Silt (< 0.062 mm)
[� 0 0 0 Detritus
IA 0 0 0 0 Artificial (rip -rap, concrete, etc.)
11d ['Yes No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
v'l l

***************"***********"*****REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS*******************"******"*
12. Aquatic Life - assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes E31No 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 macraphytes and aquatic mosses (include liverworts, lichens, and algal mats)
❑ =Beetles (including water pennies)
❑ •• addisfly larvae (Trichoptera (l-])
❑ ❑Asian clam (Corbicula)
❑ Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans (true flies)
❑ ❑Mayfly larvae (Ephemeroptera [E])
❑ ■ Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ►i' Midges/mosquito larvae
❑ ► osquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ■ Mussels/Clams (not Corbicula)
❑ Other fish
❑ ]Salamanders/tadpoles
❑ ASnails
❑ ❑Stonefly larvae (Plecoptera [P])
❑ ❑Tipulid larvae
❑ 'XWorms/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.
RB
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
DC DC 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 Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
CA fjA Unaltered or majority of streamside area with depressions able to pond water >_ 6 inches deep
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
16. Baseflow Contributors - assessment reach metric (skip for Size 4 streams and Tidal Marsh Streams)
heck 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 basrns)
❑C Obstruction that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
❑D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
❑E Stream bed or bank soil reduced (dig through deposited sediment if present)
OF 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)
'RfC 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
❑F None of the above
18. Shading - assessment reach metric (skip for Tidal Marsh Streams)
^consider aspect. Consider "leaf -on" condition.
Stream shading is appropriate for the stream category (may include gaps associated with natural processes)
Degraded (example: scattered trees)
Stream shading is gone or largely absent
DB
❑C
ix

19. Buffer Width — assessment 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
;1 J A ❑A A z 100 feet wide or extends to the edge of the watershed
❑'B [�13 LIB LB From 50 to < 100 feet wide
❑ C ❑C C ❑C From 30 to < 50 feet wide
DD ❑D t ❑D From 10 to < 30 feet wide
❑ E ❑E ❑E ❑E < 10 feet wide or no trees
20. Buffer Structure
Consider for left
LB B
❑ D
❑ E
❑C
❑D
❑E
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature Forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 0 t 50 feet of stream (30-50 feet).
If no stressors, check here and skip to Metric 22: No Stressors
Abuts < 30 feet
LB RB LB RB
❑ A ❑A ❑A ❑A
❑ B ❑B ❑B ❑B
❑C ❑C ❑C ❑C
❑ D ❑D ❑D ❑D
30-50 feet
LB RB
❑A ❑A
❑ B ❑B
❑C ❑C
❑ D ❑D
Row crops
Maintained turf
Pasture (no livestock)/commercial horticulture
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).
RB
A VA Medium to high stem density
B ❑B Low stern density
EC ❑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
❑A A The total length of buffer breaks is < 25 percent.
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 — First 100 feet of 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
Pgal
❑ C
25. Conductivity —
25a. ['Yes [,
If No, sel
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.
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.
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.
ssessment reach metric (skip for all Coastal Plain streams)
No Was conductivity measurement recorded?
fact 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 46to<67 ❑C 67 to < 79 ED 79to<230 ❑E >_230
Notes/Sketch.
x

S25-4 Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/29/2021
Stream Category Pa3 Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
Perennial
USACE/ NCDWR
Function Class Rating Summary All Streams Intermittent
(1) Hydrology MEDIUM
(2) Baseflow HIGH
(2) Flood Flow MEDIUM
(3) Streamside Area Attenuation LOW
(4) Floodplain Access LOW
(4) Wooded Riparian Buffer HIGH
(4) Microtopography MEDIUM
(3) Stream Stability HIGH
(4) Channel Stability HIGH
(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
(31 Tidal Marsh Stream Geomorphology NA
(1) Water Quality HIGH
(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 HIGH
(2) Intertidal Zone Filtration NA
(1) Habitat HIGH
(2) In -stream Habitat MEDIUM
(3) Baseflow HIGH
(3) Substrate LOW
(3) Stream Stability HIGH
(3) In -stream Habitat HIGH
(2) Stream -side Habitat HIGH
(3) Stream -side Habitat MEDIUM
(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

Applied Fluvial Geomorphology
Day 2: Field Day
SURVEY DATA 1 meow - BE CTION �7 _
SITE: ..,Sr cur-c_sJ Date: q Z,
Location: 32-1
Party / Notes: &n,
t HUC:
__
__
__
_
_
r_
__
__
__
__
__
Distance,
r
Height of
REMARKS
Point, or
Back -Sight
Instrument
Fore -Sight
COMMENTS
STATION
B S
H I
F S
Elevation
NOTES
aim s5
Item
ft
ft
ft
ft
ft
1
0
4.. 59
2
1
65=11
GA$
(,JQ✓►-+ --ittp,Daa5 I o,sfri,
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crc►''1 r c c r.
4
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4.
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14
6,3
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15
5,65
9.10
16
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9.08
17
L_ .
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-1 I
19
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slq20...3
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21
7.e, 5
9.01-
22
1.4,3,5
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24
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25
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26
1 ( 4015
7,50
27
f a,,g,0
7 / J
28
(
0-66
A22 Copyright © 2015 Wildland Hydrology

Applied Fluvial Geomorphology
Day2: Field Day
SURVEY DATA CHOW = SECTION
SITE: 3a _ / Date: 4 z_
STATION
B S
H I
F S
Elevation
.
NOTES
C
COMMENTS,
RE
Item
I ft
ft
ft
ft
ft
29
! eat
62
r
31
32
•
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
.
51
52
53
54
55
56
57
58
59
Copyright © 2015 Wildland Hydrology A23

Pebble Count Data Sheet
Size categories
Silt/clay
Very fine sand
Fine sand
3a-I Ltlz9(zI
Size ranges (mm)
< 0.06
vi
eb
Tallies (counts)
0.06 — 0.125
Stations
0.126 — 0.25
Medium sand
Coarse sand
Very coarse sand
2t
0.26 — 0.5
0.5 — 1
•
Fine gravel
5-8
A i
•
Medium gravel
9-16
Coarse gravel
Very coarse gravel
17-32
Small cobble
33 - 64
65 - 90
Medium cobble
Large cobble
Very large cobble
91 - 128
129 - 180
181 - 255
Small boulder
256 - 512
Medium boulder
513 - 1024
Large boulder
Very large boulder
Bedrock
1025 — 2048
> 2048
Large unbroken rock
surface
Woody debris
Leaves, sticks etc.
Indicate the method used below Total count
Zigzag
% Habitat
Transects/Stations
(Enter your tape position)
100
% Channel features (Estimate)
Riffles Runs Pools
10
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BENI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream: .-
Station: ur) Le4-1` ho
Date: L12.9 j,2.I Stream Type:
Location: `
Observers: Eij s nEj)
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C (Fig. 5-19)
Study
Bank
L. �
1
Bankfull
Height
n iq
(A)/(B)=
I+75�
Height (ft)=`1(ZIA)
(ft).
(B)
(C)I
Root Depth / Study Bank Height ( E
Root
Study
�
Depth
Bank
I Z(--
(D) / (A) =
0' `
.9:11D
(ft) =
I^ 9 (D)
Heiag_ht (ft) =
o f (A),
(E)
Weighted Root Density ( G
Root
Density
(F)x(E) _a,P
^�
5,°-1 (-)
as % =
5o (F)
(G)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BENI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Bank Angle (H )
Bank
Angle
as Degrees =
I IO(HZ
Surface Protection (I )
Surface
Protection
as % =
AO (1).
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
s.. • 0
Very Low
Low
aderatHigh
Very High Extreme
5-9.5 1 10-19.5
20-2
30-39.5 i 40-45 46-50
Adjective Rating 1.1.-1 ukElylT
and
Total Score 2• 1�
12
11
10
9
m 8
iv 7
'^ 6
�a
m 5
4
j 3
2
1
0
k Sketch
0
2 3 4
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
5
6
Bank
Angle
.kr
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream:
:a -1
Location: 5C F
Station: 12,3 [\hi- Fan k.
Date: 12.61 ( i2.4 Stream Type:
Observers: FJ S }
ti
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Study
Bank
Height (ft).
Root
Depth
(ft) =
1.37(A)
3.. �(D)
Bankfull
Height
(ft) =
( A ) / ( B ) =
(C)
Root Depth / Study Bank Height ( E )
Study
Bank
Height
Root
Density
as%=
ECo (A)
(D)/(A)=
Weighted Root Density ( G )
5 (F)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
SiltfClay (no adjustment)
(F)x(E) =
Bank Angie ( H )
Bank
Angle
as Degrees
Surface Protection (I )
Surface
Protection
as %
Z©(I)
J
Very Low
Ve
Low
Moderate
5-9.5 10-19.5 20-29.5
12
11
10
9
8
7
6
5
4'
3
2'
1
0
0
Bank Sketch
Very High Extreme
2 3 4 5 6
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
46 — 50
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
(0,0(0
(O,00
5-150
Bankfull
Adjective Rating 1 H 1604-
and 36 ty
Total Score !
Root
epth (p)
Bank
Angle
SH)
vc
0.2
.t0 Si
0 O
a
Start
of
Bank
WARSSS page 5-56

3. Applicant/owner name:
5. County:
7. River basin: aielitAt
NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USACE AID #: NCDWQ #
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" 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): CI -.- SCE
CIy
8. Site coordinates (decimal degrees, at lower end of assessment reach):
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map) .32 - 1 10. Length of assessment reach evaluated (feet): WO
11. Channel depth from bed (in riffle. if present) to top of bank (feet): • ['Unable to assess channel depth.
12. Channel width at top of bank (feet): ,5% 13. Is assessment reach a swamp stream? ['Yes ❑No
14. Feature type: [Perennial flow ❑Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑Mountains (M) ®,Piedmont (P) Dinner Coastal Plain (I) ['Outer Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for RIK
Tidal Marsh Stream):
2. Date of evaluation:
4. Assessor name/organization:
6. Nearest named water body
on USGS 7.5-minute quad: (++� yytt.L
3S,)T{�-3S, - asat/`i�$�
(more sinuous stream, flatter valley slope)
17. Watershed size: (skip ®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mi2)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated?
❑Section 10 water
['Essential Fish Habitat
[Publicly owned property
❑Anadromous fish
®b �!
(less sinuous stream, steeper valley slope)
❑Size 3 (0.5 to < 5 mi2) ['Size 4 (Z 5 mi2)
®Yes ❑No If Yes, check all that apply to the assessment area.
[Pater Supply Watershed (❑I Ell ❑III ❑IV ❑V)
❑High Quality Waters/Outstanding Resource Waters
ENutrient Sensitive Waters
❑CAMA Area of Environmental Concern (AEC)
['Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
❑Classified Trout Waters
['Primary Nursery Area
❑NCDWQ riparian buffer rule in effect
0303(d) List
❑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)
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).
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 A
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 NotA
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
10 to 25% of channel unstable
❑C > 25% of channel unstable
v;I

6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
frA Little or no evidence of conditions that adversely affect reference interaction
u6 ❑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
7. 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 Excessrve 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" section.
❑ F Livestock with access to stream or intertidal zone
❑G Excessive algae in stream or intertidal zone
EH Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
❑I 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
RB 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 ET.No Is stream 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 ]SNo 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 11)
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 5% oysters or other natural hard bottoms
(including liverworts, lichens, and algal mats) T ❑G Submerged aquatic vegetation
NB Multiple sticks and/or leaf packs and/or emergent ~ m r ❑H Low -tide refugia (pools)
oN
vegetation Y s c 01 Sand bottom
❑C Multiple snags and logs (including lap trees) ; er ❑J 5% vertical bank along the marsh
E�}D 5% undo -cot banks and/or root mats and/or roots U OK Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
11. Bedform and Substrate — assessment reach metric
11a. Oyes ❑No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11b. Bedform evaluated. Check the appropriate box(es). (skip for Tidal Marsh Streams)
giA Riffle -run section
LIB Pool -glide section
❑ C Natural Bedform absent (skip to Metrir. 17, Amiatir. I ife)
11c. 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
❑ ❑ 0 ❑ Bedrock/saprolite
N ❑ ❑ ❑ ❑ Boulder (256 — 4096 mm)
O ® ❑ 0 ❑ Cobble (64 — 256 mm)
O 0 gS 0 0 Gravel (2 — 64 mm)
❑ 0 0 6 ; N. Sand (.062 — 2 mm)
❑ ® 41 ❑ ❑ Silt (< 0.062 mm)
1X1 a 0 0 0 Detritus
litt ❑ ❑ 0 0 Artificial (rip -rap, concrete, etc.)
lld ❑Yes IXINo Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
vlil

**************'"*****************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
12. Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. lNYes }4]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)
El EBeetles (including water pennies)
El LCaddisfly larvae (Trichoptera [f])
El ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
El ❑Damselfly and dragonfly larvae
El ❑Dipterans (true flies)
❑ ❑Mayfly larvae (Ephemeroptera [E])
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
❑ ❑Salamanders/tadpoles
❑ ['Snails
El ❑Stonefly larvae (Plecoptera [P])
❑ ❑Tipulid larvae
El ❑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
KA I 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 Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
•ESTA A Unaltered or majority of streamside area with depressions able to pond water 2 6 inches deep
❑B 1B 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 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)
❑ s Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑ C Obstruction that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
j$[D Evidence of bank seepage or sweating (iron oxidizing bacteria 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
F 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 the stream category (may include gaps associated with natural processes)
❑B Degraded (example: scattered trees)
❑ C Stream shading is gone or largely absent
IX

19. Buffer Width — assessment 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
L� RB LB RB
A EA gjA E A z 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
Consider for left
LB RB
A AA
LB ❑B
❑ C ❑C
❑D ❑D
❑E ❑E
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 no stressors, check here and skip to Metric 22: QNo Stressors
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 EC ❑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
QAB
SAB Medium to high stem density
Low stem density
❑C EC 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
ZA .❑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 — First 100 feet of 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
�(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 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. Eves No Was conductivity measurement recorded?
If No, seIS 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 z 230
Notes/Sketch:
RB
❑B
x

S32-1 Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/29/2021
Stream Category Pal Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
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 HIGH HIGH
(3) Stream Stability MEDIUM MEDIUM
(4) Channel Stability MEDIUM MEDIUM
(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 HIGH HIGH
(2) In -stream Habitat HIGH HIGH
(3) Baseflow HIGH HIGH
(3) Substrate HIGH HIGH
(3) Stream Stability MEDIUM MEDIUM
(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

Applied Fluvial Geomorphology
Day2: Field Day
SURVEY DATA ' = CROW o &&CTION 1
SITE: e_IL_.T (SC F Date: Lt 7q 2.1
Location: 3, _a E --A,
Party / Notes: HUC:
_
—
_
,„
_-,
__
Distance,
Point, or
STATION
Back -Sight
B S
Height of
Instrument
H I
Fore -Sight
F S
REMARKS
COMMENTS
Elevation
NOTES
Item
ft
ft
ft
ft
ft
1
0
LtpCia_
9 I
Z1,44-
3
2,'Z...
4
3,L{-
(:.y-S
1.—To t3
5
q.15
L. -61LF
6
s
-7-L14
7
(_3
S2'
8
ID 9
-3.94
L.ELL
9
'1' a_S
q a, L
10
3. YJ
'J1`�
20�.1
11
z. L5
roc> gr
12
l!� .
e..14
Sp 0 6
-a-�t
13
g me
'709 (o
re7c -
14
C:t0
&.1 -6
-
Beg!
15
/Q.Vn
16
j0,,3
1d_ILE
L3
17
18
j(.
a l 5
—la 7
7.70
19
/Zo c2
q_�1
---
K �j l-
20
i 3.
9 9
/ v�
21
)Se
4 ,L-/(
22/q
a
(.0.
23
/ q ..4._
V
l^
�e_L" - �i r
'
24
5 (-15-
25
26
27
28
A22 Copyright © 2015 Wildland Hydrology

Pebble Count Data Sheet
Size categories
Silt/clay
Very fine sand
Fine sand
3z - a i4129 lam!
Size ranges (mm)
< 0.06
0.06 — 0.125
0.126 — 0.25
Tallies (counts)
Stations
1
Medium sand
0.26 — 0.5
Coarse sand
Very coarse sand
Very fine gravel
Fine gravel
• m
• •
2
0.5 — 1
1-2
2-4
5-8
3
4
Medium gravel
9-16
• •
• •
Coarse gravel
17-32
Very coarse gravel
33-64
5
Small cobble
Medium cobble
65 - 90
91 - 128
•
•
6
Large cobble
129 - 180
• •
Very large cobble
181 - 255
7
Small boulder
Medium boulder
256 - 512
513 - 1024
Large boulder
Very large boulder
Bedrock
1025 — 2048
■
8
> 2048
9
Large unbroken rock
surface
Woody debris
Leaves, sticks etc.
Indicate the method used below Total count
(01
Zigzag % Channel features (Estimate)
Habitat Riffles Runs Pools
Transects/Stations
(Enter your tape position)
10
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Fugure 5-19 with BEHI variables to determine BEHI score.
Stream:
Station:
a�
L_ VDo.in
Date: 'V 21 z_ 1
Location: CI.JI
Observers:
Stream Type: Valley Type:
SC 1
Study Bank Height / Bankfull Height ( C )
Study
Bank
Height (ft) =
lb03A)
Bankfull Height - (A) / (B) _ (, 39
(ft) = V .,11* (B) (C)
Root Depth / Study Bank Height ( E
BEHI Score
(Fig. 5-19)
E.22
Root
Study
Depth
Bank
(D)/(A).
0(39
5-
(ft)
O. L..} (D)
Height (ft)=
1. 0� (A)
(E)
(E)
Weighted Root Density ( G )
Root
Density
as %
Bank Material Adjustment:
(F)
(F)x(E) =
(G)
Bank Angle ( H )
Bank
Angle t`
as Degrees
Surface Protection (I )
Surface
Protection
as% =
CIC)(
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending an
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Bank Material
A justment
Stratification Adjustment 11
Add 5-10 points, depending on
position of unstable layers in
relation to bankfuli stage
Very Low Low
Moderate- High
Very High
5-9.5 10-19.5 20-29.5 30-39.5
Extreme
46-50
Adjective Rating lM'DERWTE
and I
Total Score I 11' Is
Vertical distance (ft)
12
11
10
Bank Sketch
6-
7
6
5
4
3
2
0
r
0 1 2 3 4 5 6
Horizontal distance (ft)
Copyright ©2006 Wildland Hydrology
Bankfull
Vnfi
:�
J C _I CO
u.p
Root
epth (D)
Bank
Angle
-SH)
U
(7) o
Start
of
Bank
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Fugure 5-19 with BEHI variables to determine BEHI score.
Stream:
Station:
bac,
Date: Stream Type:
Location: (Lj SCE,
Observers:. S ill
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Study
Bank
Height (ft)=
Root
Depth
(ft)—
Bankfull
Height
(ft) =
(A)/(B)=I 2S (C)
Root Depth / Study Bank Height ( E )
Study
Bank
Height (fn =
O 3A) (D)/(A)=0,3�(E)I
Weighted Root Density ( G )
Root
j
Density
(F) x (E) _ �•�'k I
i`-�"j-
as%_
(F)
(G)1,.
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percanlage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
J
Bank Angle ( H )
Bank
Angle
as Degrees =
Ilp (H)
Surface Protection (I )
"•r-
Surface
Protection
as% =,
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers In
relation to bankfull stage
Bank Material
AdJustrnent
11
Very Low
Low
Moderate 1 High
Very High Extreme Adjective Rating ; 1cjC t
and
Vertical distance (ft)
5-9.5 110-19.5 120-29.5 30-39.5
12 --
11 --
10
9
8
7
6
5
4
3
2
1
0
0
Bank Sketch
40 — 45 46 — 50
2 3 4 5 6
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
Total Score (a--3. • I �v
Root
epth (d)
I ?Lt iJ Bank
Angle
W
O
Start
of
Bank
WARSSS page 5-56

NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USACE AID #. NCDWQ #
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" 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): ,-SC.F
3. Applicant/owner name: Lbttq
5. County:
7. River basin:
Mom!-c•��.
2. Date of evaluation:
4. Assessor name/organization: tfz",k )3V-
8. Site coordinates (decimal degrees, at lower end of assessment reach):
STREAM INFORMATION: (depth and width can b approximations)
9. Site number (show on attached map): � 10. Length of assessment reach evaluated (feet): P OO
11. Channel depth from bed (in riffle, If present) to top of bank (feet): I. 03 ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 8,4) 0 13. Is assessment reach a swamp stream? ❑Yes ®No
14. Feature type: oPerennial flow ®Intermittent flow ❑Tidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: ❑Mountains (M) [Piedmont (P) Dinner Coastal Plain (I)
6. Nearest named water body
on USGS 7.5-minute quad: L (10€1"._
35 vzi icor, _490, 61NSel
16. Estimated geomorphic
valley shape (skip for [ a (fib
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip EISize 1 (< 0.1 mi2) ['Size 2 (0.1 to < 0.5 mi2) ❑Size 3 (0.5 to < 5 mi2) ❑Size 4 (>_ 5 mi2)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? [NYes ['No If Yes, check all that apply to the assessment area.
❑ Section 10 water ❑Classified Trout Waters ❑Water Supply Watershed (❑I 011 ❑III ❑IV ❑V)
['Essential Fish Habitat ❑Primary Nursery Area ❑High Quality Waters/Outstanding Resource Waters
❑ Publicly owned property ❑NCDWQ riparian buffer rule in effect ENutrient Sensitive Waters
❑ Anadromous fish 0303(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:
DOuter Coastal Plain (0)
❑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).
IB 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 A
4. Feature Longitudinal Profile - assessment reach metric
DA 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 NotA
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).
< 10% of channel unstable
❑B 10 to 25% of channel unstable
❑C > 25% of channel unstable
vi i

6. Streamside Area Interaction — streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
]IA IRA 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])
EC ❑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
7. Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
EA 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)
EC Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
El Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes" section.
❑ F Livestock with access to stream or intertidal zone
❑ G Excessive algae in stream or intertidal zone
EH Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
❑l Other: (explain in "Notes/Sketch" section)
I 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
141_C No drought conditions
9. Large or Dangerous Stream — assessment reach metric
❑Yes 21No Is stream 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 11)
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 H OF 5% oysters or other natural hard bottoms
(including liverworts, lichens, and algal mats) TZ E ❑G Submerged aquatic vegetation
gB Multiple sticks and/or leaf packs and/or emergent c g . ❑H Low -tide refugia (pools)
vegetation ' 6 c ❑I Sand bottom
®C Multiple snags and logs (including lap trees) m ❑J 5% vertical bank along the marsh
❑D 5% undercut banks and/or root mats and/or roots 0 OK Little or no habitat
in banks extend to the normal wetted perimeter
❑E Little or no habitat
11. Bedform and Substrate — assessment reach metric
11a. NYes ❑No Is assessment reach in a natural sand -bed stream? (skip for Coastal Plain streams)
11 b. Bedform evaluated. Check the appropriate box(es). (skip for Tidal Marsh Streams)
NAB Riffle -run section
Pool -glide section
❑ C Natural bedform absent (skip to Metric 12, Aquatic Life)
11c. 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
IN 0 0 0 Bedrock/saprolite
❑ 0 0 0 Boulder (256 — 4096 mm)
❑ 0 MX / 0 Cobble (64 — 256 mm)
O 0 ® Gravel (2 — 64 mm)
❑ ❑ ® 49 0 Sand (.062 — 2 mm)
K] 0 0 0 0 Silt (< 0.062 mm)
E 0 ® 0 ❑ Detritus
® 0 0 0 ❑ Artificial (rip -rap, concrete, etc.)
11d. ['Yes [MNo Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
VI1

*********************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
12. Aquatic Life — assessment reach metric (skip for Tidal Marsh Streams)
12a. ®Yes isiNo 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. gYes tONo 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 (including water pennies)
❑ ❑Caddisfly larvae (Trichoptera [T])
❑ ['Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ['Damselfly and dragonfly larvae
❑ ®Dipterans (true flies)
❑ EMayfly larvae (Ephemeroptera [E])
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ EMidges/mosquito larvae
❑ ['Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
El ❑Mussels/Clams (not Corbicula)
O ['Other fish
® ❑Salamanders/tadpoles
El ESnails
El ❑Stonefly larvae (Plecoptera [P])
El ETipulid 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 Rai
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 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 I,A Unaltered or majority of streamside area with depressions able to pond water Z 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.
Streams and/or springs (jurisdictional discharges)
❑B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
❑C Obstruction that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
❑D Evidence of bank seepage or sweating (iron oxidizing bacteria 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
• None of the above
18. Shading — assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
[RA Stream shading is appropriate for the stream category (may include gaps associated with natural processes)
❑ B Degraded (example: scattered trees)
❑ C Stream shading is gone or largely absent
IX

19. Buffer Width — assessment 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
LB RB
IA IN A
❑ ❑B
❑C ❑C
❑D ❑D
❑ E ❑E
Wooded
LB RB
E3A NA
❑B ❑B
❑C ❑C
❑D ❑D
❑E ❑E
20. Buffer Structure
Consider for left
LB
❑ B
EC
❑D
❑E
RB
❑B
❑C
❑D
❑E
a 100 feet wide or extends to the edge of the watershed
From 50 to < 100 feet wide
From 30 to < 50 feet wide
From 10 to < 30 feet wide
< 10 feet wide or no trees
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 no stressors, check here and skip to Metric 22: gNo Stressors
Abuts < 30 feet
LB RB LB RB
❑A ❑A ❑A ❑A
❑B ❑B ❑B ❑B
❑C ❑C ❑C ❑C
❑D ❑D ❑D ❑D
30-50 feet
LB RB
❑A ❑A
❑B ❑B
❑C ❑C
❑D ❑D
Row crops
Maintained turf
Pasture (no livestock)/commercial horticulture
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
gjA Medium to high stem density
❑B ❑B Low stem density
EC ❑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 NA The total length of buffer breaks is < 25 percent.
B El 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 — First 100 feet of 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 413 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 [S1No 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 EC 67 to < 79 ❑D 79 to < 230 ❑E a 230
Notes/Sketch:
x

S32-2
Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/29/2021
Stream Category Pal Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
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 HIGH HIGH
(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 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

Applied Fluvial Geomorphology
Day2: Field Day
SURVEY DATA ' MOBS o SECTION 17
SITE: CL_ 43CF Date: 430 NJ
Location: 3�--I- --1
Party / Notes: HUC:T_,
Distance,
Point, or
STATION
Height of
Back -Sight Instrument Fore -Sight
BS HI FS
Elevation
Item
1
ft
3.a2)
ft
ft
NOTES
COMMENTS
REMARKS
2 j ,30
3 3.?
4 5,2-
5
6 goo
7 '-65
904
9 a_3
12 „ 11/
13 03
15 Ills
16 f(c2r,S
17 igos
19 ,c2,
20 ,1aa
21
5.50
ss
22
23
24
25
26
27
28
A22 Copyright©2015 Wildland Hydrology

Pebble Count Data Sheet
Size categories
Silt/clay
Size ranges (mm)
< 0.06
Tallies (counts)
Very fine sand 0.06 — 0.125
as. 11
Stations
Fine sand 0.126 — 0.25
• s
Medium sand
Coarse sand
Very coarse sand
0.26 — 0.5
I L i
0.5 — 1
El • +
1-2
Very fine gravel
Fine gravel
2-4
•
5-8
Medium gravel
Coarse gravel
Very coarse gravel
9-16
■ is
Small cobble
17-32
33-64
65-90
Medium cobble
91 - 128
Large cobble
Very large cobble
129 - 180
181 - 255
Small boulder
256 - 512
Medium boulder
Large boulder
Very large boulder
513 - 1024
1025 — 2048
> 2048
Bedrock
Large unbroken rock
surface
10
Woody debris
Leaves, sticks etc.
Indicate the method used below Total count
Zigzag
Habitat
Transects/Stations
(Enter your tape position)
103
Riffles
Channel features (Estimate)
Runs Pools
Enter the tape
positions
Note: This data sheet incorporates both basic and advanced pebble count classification. Basic categories include
silt, sand, fine and coarse gravel, cobble, boulder and bedrock. Pebble counts can be part of SOS levels 1-3 and
should be performed at least once per year during low-water conditions. A version of the pebble count is included
on all SOS biosurvey forms.

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream: 3 -
Station:
Location: C,Lr Cr
Observers:
Date: ` /SO t ) Stream Type:
Valley Type:
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Study
Bankfull
Bank
t�/
Height
(A) / (B) =
I , 0°
00
Height (ft).
©p bl(A)
(ft) =
©"� � (B)
(C)
Root Depth / Study Bank Height ( E )
Root
Study
Depth
Bank
(D)/(A)=
1,00
I.00
(ft) _
a.
i(D)
Height (Th =
06 441
(A)
(E)
Weighted Root Density ( G )
Root
Density
as % _
70 (F)
(F)x(E) =
70,af)1---------
(G)
Bank Material Adjustment:
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
Bank Angle ( H )
Bank
Angle
as Degrees =
Surface Protection ( I )
Surface
Protection
as % =
8'0(l)
J
1.10
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
I'
Very Low
OW
Moderate
High
Very High Extreme
5)
m
c)
5-9.5 I j10-19.5 20-29.5
12
11
10
6
7
6
5
4
3
2
0
Bank Sketch
30 — 39.5 40 — 45 46 — 50
Nell!
..,===
0
2 3 4
Horizontal distance (ft)
5 6
Bankfull
Adjective Rating
and
Total Score
>-
Copyright © 2006 Wildland Hydrology
am
Loy)
f1%
Root
epth (D)
Bank
Angle
M�H)
r �
F
0
Start
of
Bank
WARSSS page 5-56

Worksheet 5-8. Form to calculate Bank Erosion Hazard Index (BEHI) variables and an overall BEHI rating
(Rosgen, 1996, 2001a). Use Figure 5-19 with BEHI variables to determine BEHI score.
Stream:
Station:
Date:
ai
2/
Stream Type:
Location: C L_
Observers: •-rnn
Valley Type:
EIS
BEHI Score
Study Bank Height / Bankfull Height ( C) (Fig. 5-19)
Study
Bankfull
Bank
Height
(A)/(B)=
9t0
�t�0
Height (ft) =
,�c►
C. t,SA.A)
(ft) =
�� (B)
(C)
Root Depth / Study Bank Height ( E )
Root
Depth
(ft) =
Study
Bank (D)/(A)= "
�S�D) Height (ft) = a1 (A) ! (E)
Weighted Root Density ( G )
Root
Density
Q
(F)z(E) _®,W
k�0
as % =
VO (F)
(G)
Bank Material Adjustment:
Bank Angle (H )
3 (H)1
Bank
Angle
as Degrees =
Surface Protection (I )
Surface
Protection
as%
.g0(1).
Bedrock (Overall Very Low BEHI)
Boulders (Overall Low BEHI)
Cobble (Subtract 10 points if uniform medium to large cobble)
Gravel or Composite Matrix (Add 5-10 points depending on
percentage of bank material that is composed of sand)
Sand (Add 10 points)
Silt/Clay (no adjustment)
cu c.$ 6
7
H 6
a
�o 5
4
> 3
2
1
0
Low
Moderate
High
10-19.5I 20-29.5 30-39.5
Bank Sketch
Very High Extreme
40-45 46-50
0
2 3 4
Horizontal distance (ft)
Copyright © 2006 Wildland Hydrology
5
6
Bank Material
Adjustment
Stratification Adjustment
Add 5-10 points, depending on
position of unstable layers in
relation to bankfull stage
Bankfull
Adjective Rating IVEI V__LO_
and
Total Score 1 T `
•
Rood
epth (i7)
Bank
Angle
.(H)
8 o
c
m
=
N
0)
Start
of
Bank
WARSSS page 5-56

NC SAM FIELD ASSESSMENT FORM
Accompanies Draft User Manual: March 2013
USACE AID #: NCDWQ #
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" 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): GL-r- 2. Date of evaluation: ] L
3. Applicant/owner name: cOlvt) 4. Assessor name/organization.
5. County: t►*.tjiA,p,A.h to,- le 6. Nearest named water body
7. River basin: Cato a on USGS 7.5-minute quad: r
8. Site coordinates (decimal degrees, at lower end of assessment reach): 3.$ ' • - ; • 9q
STREAM INFORMATION: (depth and width can ble approximations)
9. Site number (show an attached map): ,3 - p 10. Length of assessment reach evaluated (feet):
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 0 k4 L ❑Unable to assess channel depth.
12. Channel width at top of bank (feet): 2. •% i]
13. Is assessment reach a swamp stream? ❑Yes IONo
14. Feature type: ❑Perennial flow ®Intermittent flow ETidal Marsh Stream
STREAM CATEGORY INFORMATION:
15. NC SAM Zone: EMountains (M) ['piedmont (P)
16. Estimated geomorphic
valley shape (skip for
Tidal Marsh Stream):
17. Watershed size: (skip
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations
ESection 10 water
EEssential Fish Habitat
EPublicly owned property
❑Anadromous fish
Dinner Coastal Plain (I) ❑Outer Coastal Plain (0)
i'�+j a
(more sinuous stream, flatter valley slope)
®Size 1 (< 0.1 mi2) ❑Size 2 (0.1 to < 0.5 mi2)
evaluated? [Yes ❑No If Yes, check all
❑Classified Trout Waters
EPrimary Nursery Area
❑ NCDWQ riparian buffer rule in effect
O 303(d) List
(less sinuous stream, steeper valley slope)
ESize 3 (0.5 to < 5 mi2) ❑Size 4 (z 5 mi2)
that apply to the assessment area.
[Water Supply Watershed (❑I Ell ❑III ❑IV ❑V)
❑High Quality Waters/Outstanding Resource Waters
ENutrient Sensitive Waters
ECAMA 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 IRNo
1. Channel Water - assessment reach metric (skip for Size 1 streams and Tidal Marsh Streams)
�A
Water throughout assessment reach.
No flow, water in pools only.
No water in assessment reach.
2. Evidence of Flow Restriction - assessment reach metric
EA 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).
17113 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).
NB Not A
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 NotA
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).
< 10% of channel unstable
EB 10 to 25% of channel unstable
EC > 25% of channel unstable
vii

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])
El ❑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
7. Water Quality Stressors — assessment reach/intertidal zone metric
Check all that apply.
EA 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
ED Odor (not including natural sulfide odors)
❑E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in "Notes" section.
OF 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.)
El Other: (explain in "Notes/Sketch" section)
EIJ 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.
EA Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
EB Drought conditions and rainfall exceeding 1 inch within the last 48 hours
[Y1C No drought conditions
g. Large or Dangerous Stream — assessment reach metric
❑Yes ®No Is stream 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 11)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
MA Multiple aquatic macrophytes and aquatic mosses N OF 5% oysters or other natural hard bottoms
(including liverworts, lichens, and algal mats) F ? ❑G Submerged aquatic vegetation
OB Multiple sticks and/or leaf packs and/or emergent o ❑H Low -tide refugia (pools)
vegetation Y t ❑I Sand bottom
MC Multiple snags and logs (including lap trees) L 12 ❑J 5% vertical bank along the marsh
x❑D 5% undercut banks and/or root mats and/or roots ° g ❑K Little or no habitat
in banks extend to the normal wetted perimeter
El Little or no habitat
11. Bedform and Substrate — assessment reach metric
11a. ®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). (skip for Tidal Marsh Streams)
IA Riffle -run section
❑B Pool -glide section
❑C Natural bedform absent (skip to Metric 12, Aquatic Life)
11c. 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
❑ ❑ ❑ ElBedrock/saprolite
❑ ❑ ❑ ID Boulder (256 — 4096 mm)
® ❑ ❑ ❑ ❑ Cobble (64 — 256 mm)
❑ [$' ® ❑ ❑ Gravel (2 — 64 mm)
❑ ❑ ❑ [iy it Sand (.062 — 2 mm)
❑ ❑ ® ® ❑ Silt (< 0.062 mm)
❑ © ❑ NIDetritus
❑ ❑ ❑ ❑ Artificial (rip -rap, concrete, etc.)
11d. ['Yes NNo Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
viii

****************************REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
12. Aquatic Life - assessment reach metric (skip for Tidal Marsh Streams)
12a. [iYes ❑No Was an in -stream aquatic life assessment performed as described in the User Manual? If Na. select one of the following reasons and skip to Metric 13. ❑No Water ®Other: ! t en w jai S Olin Vlu' 1i" v r f.1I4
12b. [Yes LEINo 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 (including water pennies)
❑ ❑Caddisfly larvae (Trichoptera [T])
❑ ❑Asian clam (Corbicula)
❑ ❑Crustacean (isopod/amphipod/crayfish/shrimp)
❑ ❑Damselfly and dragonfly larvae
❑ ❑Dipterans (true flies)
❑ ❑Mayfly larvae (Ephemeroptera [E])
❑ ❑Megaloptera (alderfly, fishfly, dobsonfly larvae)
❑ ❑Midges/mosquito larvae
❑ ❑Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
❑ ❑Mussels/Clams (not Corbicula)
❑ ❑Other fish
❑ ❑Salamanders/tadpoles
❑ ❑Snails
❑ ❑Stonefly larvae (Plecoptera [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 F
®A ��q Little or no alteration to water storage capacity over a majority of the streamside area
❑B El 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 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 Unaltered or majority of streamside area with depressions able to pond water z 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 [�JN
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 that passes some flow during low -flow periods affecting assessment reach (ex: beaver dam, bottom -release dam)
❑ D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
]E Stream bed or bank soil reduced (dig through deposited sediment if present)
LI 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)
EC 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
▪ None of the above
18. Shading - assessment reach metric (skip for Tidal Marsh Streams)
Consider aspect. Consider "leaf -on" condition.
NA Stream shading is appropriate for the stream category (may include gaps associated with natural processes)
L B Degraded (example: scattered trees)
EC Stream shading is gone or largely absent
IX

19. Buffer Width — assessment 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
LB RB
❑A giA
❑B ❑B
®C ®C
❑ D ❑D
❑ E ❑E
Wooded
LB RB
❑A ®A
❑B ❑B
❑C
❑D ❑n
❑E ❑E
20. Buffer Structure
Consider for left
LB RB
EA IAA
❑B ❑B
❑C ❑C
ED ❑D
E ❑E
z 100 feet wide or extends to the edge of the watershed
From 50 to < 100 feet wide
From 30 to < 50 feet wide
From 10 to < 30 feet wide
< 10 feet wide or no trees
— streamside area metric (skip for Tidal Marsh Streams)
bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
Mature forest
Non -mature woody vegetation or modified vegetation structure
Herbaceous vegetation with or without a strip of trees < 10 feet wide
Maintained shrubs
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 no stressors, check here and skip to Metric 22: ❑No Stressors
Abuts < 30 feet
LB RB LB RB
❑A ❑A ❑A ❑A
❑ B ❑B ❑B ❑B
❑ C ❑C ❑C ❑C
❑ D ❑D ❑D ❑D
30-50 feet
LB RB
❑A ❑A
❑B
❑C ❑C
❑D ❑D
Row crops
Maintained turf
Pasture (no livestock)/commercial horticulture
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
EA ®"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
EA 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 — First 100 feet of 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.
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. Eves E4No 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
x

S34-1 Draft NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name CDIA Basin Monitoring Date of Assessment 4/30/2021
Stream Category Pal Assessor Name/Organization EBS, ABM — HDR
Notes of Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Additional stream information/supplementary measurements included (Y/N)
NC SAM feature type (perennial, intermittent, Tidal Marsh Stream)
YES
NO
NO
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 HIGH HIGH
(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 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 MEDIUM MEDIUM
(3) Baseflow HIGH HIGH
(3) Substrate LOW LOW
(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

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