HomeMy WebLinkAbout20211268 Ver 1_More Info Received_20211012 (2)NC WAM WETLAND ASSESSMENT FORM
Accompanies User Manual Version 4.1
Rating Calculator Version 4.1
Wetland Site Name
Wetland Type
Level III Ecoregion
River Basin
Evidence of stressors affecting the assessment area (may not be within the assessment area)
Please circle and/or make note on last page if evidence of stressors is apparent. Consider departure from reference, if
appropriate, in recent past (for instance, approximately within 10 years). Noteworthy stressors include, but are not limited
to the following.
Is the assessment area intensively managed?
Regulatory Considerations (select all that apply to the assessment area)
What type of natural stream is associated with the wetland, if any? (check all that apply)
Is the assessment area on a coastal island?
Is the assessment area's surface water storage capacity or duration substantially altered by beaver?
Does the assessment area experience overbank flooding during normal rainfall conditions?
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
Notes
•
•
•
•
Ground Surface Condition/Vegetation Condition – assessment area condition metric
Check a box in each column. Consider alteration to the ground surface (GS) in the assessment area and vegetation structure
(VS) in the assessment area. Compare to reference wetland if applicable (see User Manual). If a reference is not applicable,
then rate the assessment area based on evidence of an effect.
GS
Surface and Sub-Surface Storage Capacity and Duration – assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub-surface storage capacity and
duration (Sub). Consider both increase and decrease in hydrology. Refer to the current NRCS lateral effect of ditching guidance for
North Carolina hydric soils (see USACE Wilmington District website) for the zone of influence of ditches in hydric soils. A ditch
≤ 1 foot deep is considered to affect surface water only, while a ditch > 1 foot deep is expected to affect both surface and ditch
sub-surface water. Consider tidal flooding regime, if applicable.
Surf
Water Storage/Surface Relief – assessment area/wetland type condition metric (answer for non-marsh wetlands only)
Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetland
type (WT).
3a.
3b.
Soil Texture/Structure – assessment area condition metric
Check a box from each of the three soil property groups below. Dig soil profile in the dominant assessment area landscape
feature. Make soil observations within the 12 inches. Use most recent National Technical Committee for Hydric Soils guidance for
regional indicators.
4a.
4b.
4c.
Discharge into Wetland – opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub-surface pollutants or discharges (Sub).
Examples of sub-surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf
Land Use – opportunity metric
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). Effective riparian buffers
are considered to be 50 feet wide in the Coastal Plain and Piedmont ecoregions and 30 feet wide in the Blue Ridge Mountains ecoregion.
WS
Wetland Acting as Vegetated Buffer – assessment area/wetland complex condition metric
7a.
7b.
7c.
7d.
7e.
Wetland Width at the Assessment Area – wetland type/wetland complex metric (evaluate for riparian wetlands only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT)
and the wetland complex at the assessment areas (WC). See User Manual for WT and WC boundaries.
WT
Inundation Duration – assessment area condition metric
Answer for assessment area dominant landform.
Indicators of Deposition – assessment area condition metric
Consider recent deposition only (no plant growth since deposition).
Wetland Size – wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select “K” for the FW column.
WT
Wetland Intactness – wetland type condition metric (evaluate for Pocosins only)
Connectivity to Other Natural Areas – landscape condition metric
13a.
13b.
Edge Effect – wetland type condition metric (skip for all marshes)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non-forested areas ≥ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear-cuts.
Consider the eight main points of the compass.
Vegetative Composition – assessment area condition metric (skip for all marshes and Pine Flat)
Vegetative Diversity – assessment area condition metric (evaluate for Non-tidal Freshwater Marsh only)
Vegetative Structure – assessment area/wetland type condition metric
17a.
17b.
17c.
Snags – wetland type condition metric
Diameter Class Distribution – wetland type condition metric
Large Woody Debris – wetland type condition metric
Include both natural debris and man-placed natural debris.
Vegetation/Open Water Dispersion – wetland type/open water condition metric (evaluate for Non-Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
Hydrologic Connectivity – assessment area condition metric (evaluate for riparian wetlands only)
Examples of activities that may severely alter hydrologic connectivity include intensive
ditching, fill, sedimentation, channelization, diversion, man-made berms, beaver dams, and stream incision.
Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
Surface and sub-surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
Habitat/plant community alteration (examples: mowing, clear-cutting, exotics, etc.)
Anadromous fish
Federally protected species or State endangered or threatened species
NCDWQ riparian buffer rule in effect
Abuts a Primary Nursery Area (PNA)
Publicly owned property
N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
Designated NCNHP reference community
Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
Blackwater
Brownwater
Tidal (if tidal, check one of the following boxes)
A
B
A
B
C
A
B
C
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
A
B
C
A
B
C
A
B
C
D
E
F
G
H
I
J
K
A
B
A
B
C
A
B
C
A
B
C
A
B
A
B
C
A
B
A
B
C
D
Yes
AA
Is assessment area within 50 feet of a tributary or other open water?
Wetland buffer need only be present on one side of the water body. Make buffer judgment based on the average width of the wetland.
Record a note if a portion of the buffer has been removed or disturbed.
How much of the first 50 feet from the bank is weltand? Descriptor E should be selected if ditches effectively bypass the buffer.
Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
Do roots of assessment area vegetation extend into the bank of the tributary/open water?
Is tributary or other open water sheltered or exposed?
Check appropriate box(es) (a box may be checked in each column). Involves a GIS effort with field adjustment. This
evaluates whether the wetland is well connected (Well) and/or loosely connected (Loosely) to the landscape patch, the contiguous
metric naturally vegetated area and open water (if appropriate). Boundaries are formed by four-lane roads, regularly maintained utility
line corridors the width of a four-lane road or wider, urban landscapes, fields (pasture open and agriculture), or water > 300 feet wide.
Well
Evaluate for marshes only.
Is vegetation present?
Evaluate percent coverage of assessment area vegetation for all marshes only. Skip to 17c for non-marsh wetlands.
Check a box in each column for each stratum. Evaluate this portion of the metric for non-marsh wetlands. Consider structure
in airspace above the assessment area (AA) and the wetland type (WT) separately.
Canopy
Mid-Story
Shrub
Herb
VS
Sub
A
B
C
D
A
B
C
A
B
C
D
E
A
B
A
B
Sub
5M
Yes
A
B
C
D
E
≤ 15-feet wide
Yes
Sheltered – adjacent open water with width < 2500 feet and no regular boat traffic.
Exposed – adjacent open water with width ≥ 2500 feet or regular boat traffic.
WC
Evidence of short-duration inundation (< 7 consecutive days)
Evidence of saturation, without evidence of inundation
Evidence of long-duration inundation or very long-duration inundation (7 to 30 consecutive days or more)
Sediment deposition is not excessive, but at approximately natural levels.
Sediment deposition is excessive, but not overwhelming the wetland.
Sediment deposition is excessive and is overwhelming the wetland.
WC
Pocosin is the full extent (≥ 90%) of its natural landscape size.
Pocosin is < 90% of the full extent of its natural landscape size.
A
B
C
D
E
F
Yes
No artificial edge within 150 feet in all directions
No artificial edge within 150 feet in four (4) to seven (7) directions
An artificial edge occurs within 150 feet in more than four (4) directions or assessment area is clear-cut
Vegetation is close to reference condition in species present and their proportions. Lower strata composed of appropriate
species, with exotic plants absent or sparse within the assessment area.
Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or
clearing. It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
Vegetation severely altered from reference in composition. Expected species are unnaturally absent (planted stands of non-
characteristic species or at least one stratum inappropriately composed of a single species). Exotic species are dominant in
at least one stratum.
Vegetation diversity is high and is composed primarily of native species (<10% cover of exotics).
Vegetation diversity is low or has > 10% to 50% cover of exotics.
Vegetation is dominated by exotic species (>50% cover of exotics).
Yes
A
B
Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
Not A
Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
Majority of canopy trees are < 6 inches DBH or no trees.
Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
Not A
A
Overbank and overland flow are not severely altered in the assessment area.
Overbank flow is severely altered in the assessment area.
Overland flow is severely altered in the assessment area.
Both overbank and overland flow are severely altered in the assessment area.
A
B
A
B
C
A
B
C
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
I
J
K
AA
WT
Evidence that maximum depth of inundation is greater than 2 feet
Evidence that maximum depth of inundation is between 1 and 2 feet
Evidence that maximum depth of inundation is less than 1 foot
Sandy soil
Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
Loamy or clayey soils not exhibiting redoximorphic features
Loamy or clayey gleyed soil
Histosol or histic epipedon
Soil ribbon < 1 inch
Soil ribbon ≥ 1 inch
No peat or muck presence
A peat or muck presence
≥ 50 feet
From 30 to < 50 feet
From 15 to < 30 feet
From 5 to < 15 feet
< 5 feet or buffer bypassed by ditches
Loosely
≥ 25% coverage of vegetation
< 25% coverage of vegetation
A
B
C
A
B
C
A
B
C
A
B
C
No
Not severely altered
Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire-plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing,
less diversity [if appropriate], hydrologic alteration)
Water storage capacity and duration are not altered.
Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
A
B
C
D
Little or no evidence of pollutants or discharges entering the assessment area
Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
2M
≥ 100 feet
From 80 to < 100 feet
From 50 to < 80 feet
From 40 to < 50 feet
From 30 to < 40 feet
From 15 to < 30 feet
From 5 to < 15 feet
< 5 feet
FW (if applicable)
A
B
C
D
E
F
No
Alexander Farms
A
B
C
D
E
F
G
H
No
No
A
B
C
D
E
F
G
H
I
J
K
No
WT
Precipitation within 48 hrs?
Majority of wetland with depressions able to pond water > 1 foot deep
Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
Majority of wetland with depressions able to pond water 3 to 6 inches deep
Depressions able to pond water < 3 inches deep
≥ 500 acres
From 100 to < 500 acres
From 50 to < 100 acres
From 10 to < 50 acres
< 10 acres
Wetland type has a poor or no connection to other natural habitats
Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
A
B
C
A
B
C
A
B
C
A
B
C
≥ 10% impervious surfaces
< 10% impervious surfaces
Confined animal operations (or other local, concentrated source of pollutants)
≥ 20% coverage of pasture
≥ 20% coverage of agricultural land (regularly plowed land)
≥ 20% coverage of maintained grass/herb
≥ 20% coverage of clear-cut land
Little or no opportunity to improve water quality. Lack of opportunity may result from hydrologic alterations
that prevent drainage or overbank flow from affecting the assessment area.
≥ 500 acres
From 100 to < 500 acres
From 50 to < 100 acres
From 25 to < 50 acres
From 10 to < 25 acres
From 5 to < 10 acres
From 1 to < 5 acres
From 0.5 to < 1 acre
From 0.1 to < 0.5 acre
From 0.01 to < 0.1 acre
< 0.01 acre or assessment area is clear-cut
If Yes, continue to 7b. If No, skip to Metric 8.
If Yes, continue to 17b. If No, skip to Metric 18.
Canopy closed, or nearly closed, with natural gaps associated with natural processes
Canopy present, but opened more than natural gaps
Canopy sparse or absent
Dense mid-story/sapling layer
Moderate density mid-story/sapling layer
Mid-story/sapling layer sparse or absent
Dense shrub layer
Moderate density shrub layer
Shrub layer sparse or absent
Dense herb layer
Moderate density herb layer
Herb layer sparse or absent
> 15-feet wide
B
Other open water (no tributary present)
Yes
Yes
Lunar
Lunar
No
No
Latitude/Longitude (deci-degrees)
C
Wind
Both
D
Date
Assessor Name/Organization
Nearest Named Water Body
USGS 8-Digit Catalogue Unit
09/19/2018
Mary K Murray/Terracon
McDowell Creek
03050101
35.463067, -80.886457
Yes
Yes
No
No
NC WAM Wetland Rating Sheet
Accompanies User Manual Version 4.1
Rating Calculator Version 4.1
Wetland Site Name
Wetland Type
Notes on Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Wetland is intensively managed (Y/N)
Assessment area is located within 50 feet of a natural tributary or other open water (Y/N)
Assessment area is substantially altered by beaver (Y/N)
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
Assessment area is on a coastal island (Y/N)
Sub-function Rating Summary
Function
Hydrology
Water Quality
Habitat
Function Rating Summary
Function
Hydrology
Water Quality
Habitat
Overall Wetland Rating
Alexander Farms
Headwater Forest
Sub-function
Surface Storage and Retention
Sub-Surface Storage and Retention
Pathogen Change
Particulate Change
Soluble Change
Physical Change
Pollution Change
Physical Structure
Landscape Patch Structure
Vegetation Composition
LOW
Metrics/Notes
Condition
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Conditon
Date
Assessor Name/Organization
Metrics
Condition
Condition
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition
Condition
09/19/2018
Mary K Murray/Terracon
NO
NO
YES
YES
NO
NO
NO
Rating
LOW
LOW
HIGH
HIGH
YES
MEDIUM
NA
NA
MEDIUM
HIGH
YES
HIGH
HIGH
YES
NA
NA
NA
MEDIUM
LOW
LOW
Rating
LOW
HIGH
HIGH
YES
LOW
WetlandIndex
EcoregionIndex
BasinIndex
ManagedWetland
RegConsid
StreamType
Beaver
Island
Flood
Trib_OpenWater
booSelection
booOpen
booActivate
Hydro(1,1,0)
Hydro(1,1,1)
Hydro(1,1,2)
Hydro(1,1,3)
Hydro(1,2,0)
Hydro(1,2,1)
Hydro(1,2,2)
WQ(2,1,0)
WQ(2,1,1)
WQ(2,1,2)
WQ(2,1,3)
WQ(2,1,4)
WQ(2,1,5)
WQ(2,1,6)
WQ(2,2,0)
WQ(2,2,1)
WQ(2,2,2)
WQ(2,2,3)
WQ(2,2,4)
WQ(2,3,0)
WQ(2,3,1)
WQ(2,3,2)
WQ(2,3,3)
WQ(2,4,0)
WQ(2,4,1)
WQ(2,4,2)
WQ(2,4,3)
WQ(2,5,0)
WQ(2,6,0)
Hab(3,1,0)
Hab(3,1,1)
Hab(3,1,2)
Hab(3,1,3)
Hab(3,1,4)
Hab(3,1,5)
Hab(3,1,6)
Hab(3,2,0)
Hab(3,2,1)
Hab(3,2,2)
Hab(3,2,3)
Hab(3,2,4)
Hab(3,3,0)
Hab(3,4,0)
subHydro(1)
subHydro(2)
subWQ(1)
subWQ(2)
subWQ(3)
subWQ(4)
oppWQ(1)
oppWQ(2)
oppWQ(3)
oppWQ(4)
subHab(1)
subHab(2)
subHab(3)
subHab(4)
txtHydro(1)
txtHydro(2)
txtWQ(1)
txtWQ(2)
txtWQ(3)
txtWQ(4)
oppWQTxt(1)
oppWQTxt(2)
oppWQTxt(3)
oppWQTxt(4)
txtHab(1)
txtHab(2)
txtHab(3)
txtHab(4)
functHydro
functWQ
oppfunctWQ
functHab
functHydroTxt
functWQTxt
oppfunctWQTxt
functHabTxt
functOverallTxt
m1_gs
m1_vs
m2_surf
m2_sub
m3_aa
m3_wt
m3_depth
m5_surf
m5_sub
m7_bufferyn
m7_wbwidth
m7_strwidth
m7_roots
m7_open
m8_wt
m8_wc
m9_
m10_
m11_wt
m11_wc
m11_fw
m12_
m13_wc
m13_lc
m13_open
m14_
m15_
m16_
m17_present
m17_percent
m17_aa_canopy
m17_aa_mid
m17_aa_shrub
m17_aa_herb
m17_wt_canopy
m17_wt_mid
m17_wt_shrub
m17_wt_herb
m18_
m19_
m20_
m21_
m22_
m4_type
m4_ribbon
m4_peat
m6_ws(1)
m6_ws(2)
m6_ws(3)
m6_ws(4)
m6_ws(5)
m6_ws(6)
m6_ws(7)
m6_ws(8)
m6_5m(1)
m6_5m(2)
m6_5m(3)
m6_5m(4)
m6_5m(5)
m6_5m(6)
m6_5m(7)
m6_5m(8)
m6_2m(1)
m6_2m(2)
m6_2m(3)
m6_2m(4)
m6_2m(5)
m6_2m(6)
m6_2m(7)
m6_2m(8)
booClear
8
3
3
1
0
2
2
2
2
True
False
True
0
2
1
3
0
1
3
0
1
2
1
0
0
0
0
2
1
0
0
0
2
1
0
0
2
1
1
0
0
0
2
1
1
1
3
2
0
3
3
3
0
3
0
3
3
1
2
2
1
1
0
1
1
2
3
3
0
LOW
LOW
HIGH
MEDIUM
MEDIUM
HIGH
HIGH
HIGH
HIGH
MEDIUM
LOW
LOW
3
1
1
3
LOW
HIGH
HIGH
LOW
LOW
2
2
3
3
3
3
2
2
2
1
3
1
1
1
5
5
2
2
9
9
9
0
6
3
0
3
3
0
1
0
1
3
3
2
1
3
3
1
1
1
1
0
4
1
1
1
-1
0
0
-1
0
-1
0
0
-1
0
0
-1
0
-1
0
0
-1
0
0
0
0
0
0
0
False
WetlandIndex
EcoregionIndex
BasinIndex
ManagedWetland
RegConsid
StreamType
Beaver
Island
Flood
Trib_OpenWater
booSelection
hydro110
hydro111
hydro112
hydro113
hydro120
hydro121
hydro122
wqual210
wqual211
wqual212
wqual213
wqual214
wqual215
wqual216
wqual220
wqual221
wqual222
wqual223
wqual224
wqual230
wqual231
wqual232
wqual233
wqual240
wqual241
wqual242
wqual243
wqual250
wqual260
habitat311
habitat312
habitat313
habitat314
habitat315
habitat316
habitat321
habitat322
habitat323
habitat324
habitat330
habitat340
subhydro1
subhydro2
subwq1
subwq2
subwq3
subwq4
subhab1
subhab2
subhab3
subhab4
m1_gs
m1_vs
m2_surf
m2_sub
m3_aa
m3_wt
m5_surf
m5_sub
m7_buffer
m7_rb
m7_width
m7_roots
m7_open
m8_wt
m8_wc
m9
m10
m11_wt
m11_wc
m11_fw
m12
m13_wc
m13_lc
m13_open
m14
m15
m16
m17_present
m17_percent
m17_aa_canopy
m17_aa_mid
m17_aa_shrub
m17_aa_herb
m17_wt_canopy
m17_wt_mid
m17_wt_shrub
m17_wt_herb
m18
m19
m20
m21
m22
m4_type
m4_ribbon
m4_peat
m6_ws1
m6_ws2
m6_ws3
m6_ws4
m6_ws5
m6_ws6
m6_ws7
m6_ws8
m6_5m1
m6_5m2
m6_5m3
m6_5m4
m6_5m5
m6_5m6
m6_5m7
m6_5m8
m6_2m1
m6_2m2
m6_2m3
m6_2m4
m6_2m5
m6_2m6
m6_2m7
m6_2m8
NC WAM Wetland Rating Sheet
Wetland Site Name
Wetland Type
Notes on Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Wetland is intensively managed (Y/N)
Assessment area is located within 50 feet of a natural tributary or other open water (Y/N)
Assessment area is substantially altered by beaver (Y/N)
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
Assessment area is on a coastal island (Y/N)
Sub-fucntion Rating Summary
Function
Hydrology
Water Quality
Habitat
Function Rating Summary
Function
Hydrology
Water Quality
Habitat
Overall Wetland Rating
Sub-function
Surface Storage and Retention
Sub-Surface Storage and Retention
Pathogen Change
Particulate Change
Soluble Change
Physical Change
Pollution Change
Physical Structure
Landscape Patch Structure
Vegetation Composition
LOW
Metrics/Notes
Condition
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Conditon
Date
Assessor Name/Organization
Condition
Condition
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
NO
YES
YES
NO
NO
NO
Rating
LOW
LOW
HIGH
HIGH
YES
MEDIUM
MEDIUM
HIGH
YES
HIGH
HIGH
YES
MEDIUM
LOW
LOW
Rating
LOW
HIGH
HIGH
YES
LOW
A
B
D
E
1
2
3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
1 %./
20
L 1
22
23
24
25
26
2T
28
29
30
31
V L
33
34
35
36
V I
38
40
T 1
42
T V
44
45
46
47
48
49
50
51
52
53
VT
55
56
58
59
60
61
62
63
64
65
-6T
68
A B C D
E
69
71
-73-
74
-Te
-7T
A
B
D
E
80
81
82
83
84
85
86
8T
88
90
91
93
94
96
77
98
99
100
101
102
103
104
105
1 VV
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
ILL
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
1 T 1
142
143
144
145
146
147
148
A B C D
E
149
150
151
152
153
1 V T
A
B
D
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155
156
157
158
159
1 V V
161
162
163
164
165
1 VV
167
168
169
170
171
172
173
174
175
176
-ITT
178
179
180
181
182
1 VV
184
185
186
189
190
191
192
193
194
195
196
197
198
199
201
202
204
205
206
207
208
209
210
212
213
214
215
216
217
218
219
220
«I
222
223
224
A
B
D
E
225
A
227
228
229
231
232
233
235
236
237
238
239
240
242
243
244
246
247
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252
254
255
256
258
259
260
261
262
264
265
266
267
269
270
271
272
273
274
275
276
7TT
278
281
282
283
284
285
286
287
289
290
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293
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295
296
297
A B C D
E
298
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F C H I J K L M N O P Q R S T U V A X Y ZIAIAEA(A[AEAIA(AIAI A,AIAIAIAI AcAINAIA:KAWAWA'A: B/ B I B(B I B I
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NC WAM WETLAND ASSESSMENT FORM
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Accompanies User Manual Version 4.1
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Rating Calculator Version 4.1
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Wetland Site Name Alexander Farms Date 09/19/2018
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Wetland Type Headwater Forest Assessor Name/Organization Mary K Murray/Terra
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Level III Ecoregion Piedmont Nearest Named Water Body McDowell Creek
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River Basin Cataw ba USGS 8-Digit Catalogue Unit 03050101
8
Yes • No Precipitation within 48 hrs? Latitude/Longitude (deci-degrees) 35.463067, -80.8864
Evidence of stressors affecting the assessment area (may not be within the assessment area)
10
11
Please circle and/or make note on last page if evidence of stressors is apparent. Consider departure from reference, if
12
appropriate, in recent past (for instance, approximately within 10 years). Noteworthy stressors include, but are not limited
13
to the following.
14
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
15
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
16
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
17
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
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• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? (i. Yes No
20
22
Regulatory Considerations (select all that apply to the assessment area)
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i Anadromous fish
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I— Federally protected species or State endangered or threatened species
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7 NCDWQ riparian buffer rule in effect
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7 Abuts a Primary Nursery Area (PNA)
2T
7 Publicly owned property
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1— N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
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7 Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
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7 Designated NCNHP reference community
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7 Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
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34
Blackwater
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. Brownwater
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Tidal (if tidal, check one of the following boxes) r Lunar 'T Wind C Both
Is the assessment area on a coastal island? Yes • No
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Is the assessment area's surface water storage capacity or duration substantially altered by beaver? Yes
40
T 1
42
Does the assessment area experience overbank flooding during normal rainfall conditions? Yes • No
T V
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1. Ground Surface Condition/Vegetation Condition — assessment area condition metric
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Check a box in each column. Consider alteration to the ground surface (GS) in the assessment area and vegetation structure
46
(VS) in the assessment area. Compare to reference wetland if applicable (see User Manual). If a reference is not applicable,
47
then rate the assessment area based on evidence of an effect.
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GS VS
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r A A Not severely altered
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4-" B :- B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, exce
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sedimentation, fire -plow lanes, skidder tracks. bedding, fill, soil compaction, obvious pollutants) (vegetation structu
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alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazini
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less diversity [if appropriate], hydrologic alteration)
VT
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2. Surface and Sub -Surface Storage Capacity and Duration — assessment area condition metric
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Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and
5T
duration (Sub). Consider both increase and decrease in hydrology. Refer to the current NRCS lateral effect of ditching guidance
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North Carolina hydric soils (see USACE Wilmington District website) for the zone of influence of ditches in hydric soils. A ditch
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s 1 foot deep is considered to affect surface water only, while a ditch > 1 foot deep is expected to affect both surface and ditch
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sub -surface water. Consider tidal flooding regime, if applicable.
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Surf Sub
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C A A Water storage capacity and duration are not altered.
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B . B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
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(' C i:.. C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
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change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
3. Water Storage/Surface Relief — assessment area/wetland type condition metric (answer for non -marsh wetlands only)
BT
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Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetle
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type (WT).
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AA
WT
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3a. 4. A
C A Majority of wetland with depressions able to pond water > 1 foot deep
( B
C B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
-2—
(' C
6- C Majority of wetland with depressions able to pond water 3 to 6 inches deep
-3—
74
r D
D Depressions able to pond water < 3 inches deep
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3b. r A
Evidence that maximum depth of inundation is greater than 2 feet
7T
. B
Evidence that maximum depth of inundation is between 1 and 2 feet
C C
Evidence that maximum depth of inundation is less than 1 foot
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107
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115
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ILL
123
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IT 1
142
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4. Soil Texture/Structure — assessment area condition metric
Check a box from each of the three soil property groups below. Dig soil profile in the dominant assessment area landscape
feature. Make soil observations within the 12 inches. Use most recent National Technical Committee for Hydric Soils guidance fo
regional indicators.
4a. • A Sandy soil
" B Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
• C Loamy or clayey soils not exhibiting redoximorphic features
• D Loamy or clayey gleyed soil
✓ E Histosol or histic epipedon
4b. ▪ A Soil ribbon < 1 inch
B Soil ribbon >_ 1 inch
4c. (. A No peat or muck presence
• B A peat or muck presence
5. Discharge into Wetland — opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub -surface pollutants or discharges (Sub).
Examples of sub -surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf Sub
A A Little or no evidence of pollutants or discharges entering the assessment area
B • B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
C C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area a
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use — opportunity metric
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sourcE
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). Effective riparian buffe
are considered to be 50 feet wide in the Coastal Plain and Piedmont ecoregions and 30 feet wide in the Blue Ridge Mountains eco
WS 5M 2M
1 A [ A F A >_ 10% impervious surfaces
B [ B fl B < 10% impervious surfaces
C E C E C Confined animal operations (or other local, concentrated source of pollutants)
. D iv D fl D >_ 20% coverage of pasture
F E fl E [ E >_ 20% coverage of agricultural land (regularly plowed land)
F F ' F [ F >_ 20% coverage of maintained grass/herb
F G C G fl G >_ 20% coverage of clear-cut land
F H E H C H Little or no opportunity to improve water quality. Lack of opportunity may result from hydrologic alteration:
that prevent drainage or overbank flow from affecting the assessment area.
7. Wetland Acting as Vegetated Buffer — assessment area/wetland complex condition metric
7a. Is assessment area within 50 feet of a tributary or other open water?
▪ Yes C No If Yes, continue to 7b. If No, skip to Metric 8.
Wetland buffer need only be present on one side of the water body. Make buffer judgment based on the average width of the
Record a note if a portion of the buffer has been removed or disturbed.
7b. How much of the first 50 feet from the bank is weltand? Descriptor E should be selected if ditches effectively bypass the buff
A >_ 50 feet
B From 30 to < 50 feet
* C From 15 to < 30 feet
" D From 5 to < 15 feet
" E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
▪ 15-feet wide > 15-feet wide Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
* Yes No
7e. Is tributary or other open water sheltered or exposed?
▪ Sheltered — adjacent open water with width < 2500 feet and no regular boat traffic.
Exposed — adjacent open water with width >_ 2500 feet or regular boat traffic.
8. Wetland Width at the Assessment Area — wetland type/wetland complex metric (evaluate for riparian wetlands only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT)
and the wetland complex at the assessment areas (WC). See User Manual for WT and WC boundaries.
WT WC
`" A A >_ 100 feet
4" B B From 80 to < 100 feet
("" C C From 50 to < 80 feet
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From 40 to < 50 feet
150
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; E
From 30 to < 40 feet
151
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F
From 15 to < 30 feet
152
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G
From 5 to < 15 feet
153
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< 5 feet
1 VT
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162
163
164
165
167
168
169
170
171
172
173
174
175
176
17T
178
179
180
181
182
1 VV
184
185
186
Tg
189
190
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192
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207
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9. Inundation Duration — assessment area condition metric
Answer for assessment area dominant landform.
r- A
r`- B
r- c
Evidence of short -duration inundation (< 7 consecutive days)
Evidence of saturation, without evidence of inundation
Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric
Consider recent deposition only (no plant growth since deposition).
A Sediment deposition is not excessive, but at approximately natural levels.
* B Sediment deposition is excessive, but not overwhelming the wetland.
C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland are
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select "K" for the FW co
WT WC FW (if applicable)
- A A r A >_ 500 acres
(`" B B r- B From 100 to < 500 acres
r- C C C' C From 50 to < 100 acres
C- D D ( D From 25 to < 50 acres
r' E E C E From 10 to < 25 acres
• F ( F F From 5 to < 10 acres
4`" G G r- G From 1 to < 5 acres
C H H C' H From 0.5 to < 1 acre
• I I 4' I From 0.1 to < 0.5 acre
• J i J J From 0.01 to < 0.1 acre
K 1 K ( K < 0.01 acre or assessment area is clear-cut
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
A Pocosin is the full extent (>_ 90%) of its natural landscape size.
B Pocosin is < 90% of the full extent of its natural landscape size.
13. Connectivity to Other Natural Areas — landscape condition metric
13a. Check appropriate box(es) (a box may be checked in each column). Involves a GIS effort with field adjustment. This
evaluates whether the wetland is well connected (Well) and/or loosely connected (Loosely) to the landscape patch, the contic
metric naturally vegetated area and open water (if appropriate). Boundaries are formed by four -lane roads, regularly maintair
line corridors the width of a four -lane road or wider, urban landscapes, fields (pasture open and agriculture), or water > 300 fe
Well Loosely
A A >_ 500 acres
B B From 100 to < 500 acres
r- C C From 50 to < 100 acres
D r. D From 10 to < 50 acres
C' E - E < 10 acres
F F Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
Yes No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges it
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear -cuts.
Consider the eight main points of the compass.
( A No artificial edge within 150 feet in all directions
• B No artificial edge within 150 feet in four (4) to seven (7) directions
• C An artificial edge occurs within 150 feet in more than four (4) directions or assessment area is clear-cut
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
A Vegetation is close to reference condition in species present and their proportions. Lower strata composed of appropriate
species, with exotic plants absent or sparse within the assessment area.
B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native spec
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting o
clearing. It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
• C Vegetation severely altered from reference in composition. Expected species are unnaturally absent (planted stands of no
characteristic species or at least one stratum inappropriately composed of a single species). Exotic species are dominant
at least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
A Vegetation diversity is high and is composed primarily of native species (<10% cover of exotics).
B Vegetation diversity is low or has > 10% to 50% cover of exotics.
225
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C Vegetation is dominated by exotic species (>50% cover of exotics).
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7T
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L
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285
286
287
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17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
f Yes No If Yes, continue to 17b. If No, skip to Metric 18.
17b. Evaluate percent coverage of assessment area vegetation for all marshes only. Skip to 17c for non -marsh wetlands.
A >_ 25% coverage of vegetation
B < 25% coverage of vegetation
17c. Check a box in each column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider str
in airspace above the assessment area (AA) and the wetland type (WT) separately.
AA WT
o • A i. A Canopy closed, or nearly closed, with natural gaps associated with natural processes
co
B ('` B Canopy present, but opened more than natural gaps
c.) C C Canopy sparse or absent
o A A Dense mid-story/sapling layer
B B Moderate density mid-story/sapling layer
7(13
• C • C Mid-story/sapling layer sparse or absent
2
(- A ( A Dense shrub layer
( B r B Moderate density shrub layer
C 4. C Shrub layer sparse or absent
(- A ( A Dense herb layer
sa)( B B Moderate density herb layer
C C Herb layer sparse or absent
18. Snags — wetland type condition metric
* A Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
B Not A
19. Diameter Class Distribution — wetland type condition metric
* A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) ar
present.
B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
C C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric
Include both natural debris and man -placed natural debris.
• A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability
B Not A
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation and open water in the growing season. Patte
areas indicate vegetated areas, while solid white areas indicate open water.
A B C D
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22. Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands only)
Examples of activities that may severely alter hydrologic connectivity include intensive
ditching, fill, sedimentation, channelization, diversion, man-made berms, beaver dams, and stream incision.
( A Overbank and overland flow are not severely altered in the assessment area.
4 B Overbank flow is severely altered in the assessment area.
I`- C Overland flow is severely altered in the assessment area.
D Both overbank and overland flow are severely altered in the assessment area.
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Notes
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7TT
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ucture
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rned
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BIB(BIBIEE BL
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Wetland Site Name
Wetland Type
NC WAM Wetland Rating Sheet
Accompanies User Manual Version 4.1
Rating Calculator Version 4.1
Alexander Farms
Headwater Forest
Date 09/19/2018
Assessor Name/Organization Mary K Murray/Terracon
Notes on Field Assessment Form (Y/N)
Presence of regulatory considerations (Y/N)
Wetland is intensively managed (Y/N)
Assessment area is located within 50 feet of a natural tributary or other open water (Y/N)
Assessment area is substantially altered by beaver (Y/N)
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
Assessment area is on a coastal island (Y/N)
Sub -function Rating Summary
NO
NO
YES
YES
NO
NO
NO
Function Sub -function
Hydrology Surface Storage and Retention
Sub -Surface Storage and Retention
Metrics
Condition
Condition
Rating
LOW
LOW
Water Quality
Pathogen Change
Particulate Change
Soluble Change
Physical Change
Pollution Change
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
HIGH
HIGH
YES
MEDIUM
NA
NA
MEDIUM
HIGH
YES
HIGH
HIGH
YES
NA
NA
NA
Habitat
Physical Structure
Landscape Patch Structure
Vegetation Composition
Condition
Condition
Condition
MEDIUM
LOW
LOW
Function Rating Summary
Function
Hydrology
Water Quality
Habitat
Metrics/Notes
Condition
Condition
Condition/Opportunity
Opportunity Presence? (Y/N)
Conditon
Rating
LOW
HIGH
HIGH
YES
LOW
Overall Wetland Rating
LOW