2023009 Ver 1_Wallace_WWTF_SOBAD_Request_20230720

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July 20, 2023 3
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Ms. Holley Snider `.�j0
NC Department of Environmental Quality, Division of Water Resources '�Vlib
Wilmington Regional Office o
127 Cardinal Drive
Wilmington, NC 28405
Re: Stream Origin Determination Request
Installation of flood protection berm and localized flood protection for the Wallace
Wastewater Treatment Facility (WWTF) components.
Project: Wallace WWTF Flood Protection, Duplin County, NC
Ms. Snider:
VHB respectfully requests concurrence with the attached stream origin/buffer applicability determination
request (SOBAD) in association with this proposed flood protection project. VHB is currently under
contract with WGI to provide natural resources inventories, jurisdictional assessments and reporting. The
proposed Town of Wallace flood protection project utilizes North Carolina Department of Public Safety
Emergency Management Disaster Relief and Mitigation Grant (DRMG) funds. The proposed project is
located approximately 0.6 miles Southeast of Wallace, in Duplin County, NC.
The SOBAD will assist in avoidance and minimization of unavoidable stream, buffer or wetland impacts
associated with design and layout of the proposed flood protection project. We have attached the
following information to assist with your review:
• Aquatic Resources within the Study Area (Table)
• Figures
0 1. 1959 Soil Survey of Duplin County, NC
0 2. USGS Topographic Study Area Map
0 3A — 3E. Water Resources
0 4. Vicinity Map
• USACE wetland and upland data forms
• NCWAM rating forms and NCSAM forms for intermittent streams
• NCDWR stream data forms
• Site photographs
• Antecedent Precipitation Tool output
• Agent authorization form
If you have any questions, please do not hesitate to contact me at [phone]. We look forward to
hearing from you soon.
Sincerely,
VHB
David G. Cooper
Senior Environmental Scientist
Engineers I Scientists I Planners I Designers
cc: Paul Shivers, PE, Highfill
Venture 1
940 Main Campus Drive, Suite 500
Raleigh, North Carolina 27606
P 919.829.0328
F 919.833.0034

NCDWQ
Estimated amount of aquatic
On USGS
On 1959
Site
Feature ID
Field Classification
v4.11
resource in study area (acreage
National
Duplin Co. Soil
No.
Score
& linear feet, if applicable)
Map?
Survey?
Little
1
Rockfish
•Perennial
N/A
195If
Yes
Yes
Creek
• Intermittent
2
Stream A
• From flag SA01 Start at Pipe
29.5
246 If
No
No
to Little Rockfish Creek
• Perennial
• From flag SB07 Start at Pipe
3
Stream B
to flag SB-06 Tie to Pipe and
32.0
243 If
No
No
from flag SB-05 Tie to Pipe to
Little Rockfish Creek
• Intermittent
4
Stream C
• From Flag SC01 Start
20.5
27 If
No
No
Channel to confluence with
Stream B
• Intermittent
5
Stream D
• From flag SD01 Tie to Study
29.0
143 If
No
No
Area to flag SD05 Tie to
Study Area
6
Wetland A
*Wetland
N/A
0.07 ac
N/A
N/A
7
Wetland B
*Wetland
N/A
0.03 ac
N/A
N/A
8
Wetland C
*Wetland
N/A
1.47 ac
N/A
N/A
9
Wetland D
•Wetland
N/A
0.005 ac
N/A
N/A

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USGS National Map

Potential Intermittent Stream Fj�lw
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Program, Geographic Names Information System, National Hydrography
Dataset, National Land Cover Database, National Structures Dataset, and
National Tra' sportation Dataset; USGS Global Ecosystems; U.S. Census
.Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.
Departmen�of State Humanitarian Information Unit; and NOAA National
Cent ers� f/for Environmental Information, U.S. Coastal Relief Model. Data
refreshed April, 2023.
VICINITY MAP N
Figure
WALLACE WWTF 4
FLOOD PROTECTION
USGS National Map

Wallace WWTF, WA
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/27/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: WA -WET
Investigator(s): David Cooper & Miguel Ortiz Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Excavated ditch Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.732314 Long:-77.982579 Datum: NAD83
Soil Map Unit Name: Autryville loamy fine sand, 0 to 6 percent slopes NWI classification: R5UBH
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation Soil X or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes No X
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes X No within a Wetland? Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal" conditions at the time of the site visit. Feature appears to
have been excavated/ditched.
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
_Surface Water (All)
_Aquatic Fauna (B13)
_Sparsely Vegetated Concave Surface (138)
X High Water Table (A2)
_ Marl Deposits (615) (LRR U)
—Drainage Patterns (B10)
X Saturation (A3)
_Hydrogen Sulfide Odor (C1)
_Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (133)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (134)
_Thin Muck Surface (C7)
_Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes
No X Depth (inches):
Water Table Present? Yes X
No Depth (inches): 4
Saturation Present? Yes X
No Depth (inches): 0
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

VEGETATION (Four Strata) - Use scientific names of plants.
Wallace WWTF, WA
Sampling Point: WA -WET
Absolute
Dominant
Indicator
Tree Stratum (Plot size: 30 )
% Cover
Species?
Status
Dominance Test worksheet:
1.
Acer rubrum
10
Yes
FAC
Number of Dominant Species
2.
That Are OBL, FACW, or FAC: 7 (A)
3.
Total Number of Dominant
4.
Species Across All Strata: 7 (B)
5.
Percent of Dominant Species
6.
That Are OBL, FACW, or FAC: 100.0% (A/B)
7.
Prevalence Index worksheet:
8.
Total % Cover of: Multiply by:
10
=Total Cover
OBL species x 1 =
50% of total cover:
5
20% of total cover:
2
FACW species x 2 =
Sapling/Shrub Stratum (Plot size: 30
)
FAC species x 3 =
1.
Ligustrum sinense
5
Yes
FAC
FACU species x 4 =
2.
Triadica sebifera
5
Yes
FAC
UPL species x 5 =
3.
Liquidambarstyraciflua
2
No
FAC
Column Totals: (A) (B)
4.
Acernegundo
2
No
FAC
Prevalence Index = B/A =
5.
Hydrophytic Vegetation Indicators:
6.
_ 1 - Rapid Test for Hydrophytic Vegetation
7.
X 2 - Dominance Test is >50%
8.
3 - Prevalence Index is 153.0'
14
=Total Cover
_
-Problematic Hydrophytic Vegetation' (Explain)
50% of total cover:
7
20% of total cover:
3
Herb Stratum (Plot size: 30 )
1.
Microstegium vimineum
20
Yes
FAC
'Indicators of hydric soil and wetland hydrology must be
2.
Boehmeria cylindrica
5
Yes
FACW
present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
3.
4•
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
5,
more in diameter at breast height (DBH), regardless of
6
height.
7.
Sapling/Shrub - Woody plants, excluding vines, less
8.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
9.
10.
Herb - All herbaceous (non -woody) plants, regardless
11.
of size, and woody plants less than 3.28 ft tall.
12.
25
=Total Cover
Woody Vine - All woody vines greater than 3.28 ft in
50% of total cover:
13
20% of total cover:
5
height.
Woody Vine Stratum (Plot size: 30 )
1.
Vitis rotundifolia
3
Yes
FAC
2.
Smilax rotundifolia
3
Yes
FAC
3.
4.
5.
Hydrophytic
6
=Total Cover
Vegetation
50% of total cover:
3
20% of total cover:
2
Present? Yes X No
Remarks: (If observed, list morphological adaptations below.)
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, WA
Sampling Point: WA -WET
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
Matrix
Redox Features
(inches)
Color (moist)
%
Color (moist) % Types Loc2 Texture Remarks
0-4
10YR 2/1
100
Loamy/Clayey
4-8
2.5Y 6/1
100
Loamy/Clayey
8-10
2.5Y 5/1
100
Loamy/Clayey
10-12
10YR 3/1
100
Loamy/Clayey
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
_ Histosol (A1)
_Thin Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2)
—Barrier Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 153113, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4)
_ Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5)
_ Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
_Organic Bodies (A6) (LRR P, T, U)
X Depleted Matrix (F3)
(outside MLRA 150A, 15013)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U)
_ Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
—Muck Presence (A8) (LRR U)
_ Depleted Dark Surface (F7)
_Anomalous Bright Floodplain Soils (F20)
_ 1 cm Muck (A9) (LRR P, T)
_ Redox Depressions (F8)
(MLRA 153B)
X Depleted Below Dark Surface (Al 1)
—Marl (F10) (LRR U)
—Red Parent Material (F21)
_Thick Dark Surface (Al2)
_Depleted Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
—Sandy Mucky Mineral (S1) (LRR O, S)
_ Umbric Surface (F13) (LRR P, T, U)
—Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4)
_Delta Ochric (F17) (MLRA 151)
(MLRA 153113, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 15013)
_Other (Explain in Remarks)
—Stripped Matrix (S6)
—Piedmont Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U)
_Anomalous Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U)
—Very Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches): Hydric Soil Present? Yes X No
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, WB
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/27/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: WB-WET
Investigator(s): David Cooper & Miguel Ortiz Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Bermed outfall Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.731404 Long:-77.981682 Datum: NAD83
Soil Map Unit Name: Autryville loamy fine sand, 0 to 6 percent slopes NWI classification: PF01 C
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation X Soil X or Hydrology X significantly disturbed? Are "Normal Circumstances" present? Yes No X
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes X No within a Wetland? Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal' conditions at the time of the site visit. Abnormal,
augmented hydrology from wastewater treatment facility outfall, also soil & riprap berms that trap hydrology. Feature connects to creek via a narrow
wetland in an area with periodically maintained vegetation.
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
X Surface Water (All)
_Aquatic Fauna (B13)
_Sparsely Vegetated Concave Surface (138)
X High Water Table (A2)
_ Marl Deposits (B15) (LRR U)
—Drainage Patterns (B10)
X Saturation (A3)
—Hydrogen Sulfide Odor (C1)
_ Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (63)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (B4)
_Thin Muck Surface (C7)
X Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes X
No Depth (inches): 4
Water Table Present? Yes X
No Depth (inches): 0
Saturation Present? Yes X
No Depth (inches): 0
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Abnormal, augmented hydrology fromWWTP
outfall, also soil & riprap berms that trap hydrology.
Ties to creek via narrow wetland connection through
maintained old road bed.
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, WB
VEGETATION (Four Strata) - Use scientific names of plants. Sampling Point: WB-WET
Absolute Dominant
Indicator
Tree Stratum (Plot size: 30 )
% Cover Species?
Status
Dominance Test worksheet:
1.
Triadica sebifera
5
Yes
FAC
Number of Dominant Species
2.
That Are OBL, FACW, or FAC: 4 (A)
3.
Total Number of Dominant
4.
Species Across All Strata: 4 (B)
5.
Percent of Dominant Species
6.
That Are OBL, FACW, or FAC: 100.0% (A/B)
7.
Prevalence Index worksheet:
8.
Total % Cover of: Multiply by:
5
=Total Cover
OBL species x 1 =
50% of total cover:
3
20% of total cover:
1
FACW species x 2 =
Sapling/Shrub Stratum (Plot size: 30
)
FAC species x 3 =
1.
Triadica sebifera
15
Yes
FAC
FACU species x 4 =
2.
Fraxinus pennsylvanica
5
Yes
FACW
UPL species x 5 =
3.
Acernegundo
3
No
FAC
Column Totals: (A) (B)
4.
Prevalence Index = B/A =
5.
Hydrophytic Vegetation Indicators:
6.
_ 1 - Rapid Test for Hydrophytic Vegetation
7.
X 2 - Dominance Test is >50%
8.
3 - Prevalence Index is :53.0'
23
=Total Cover
_
-Problematic Hydrophytic Vegetation' (Explain)
50% of total cover:
12
20% of total cover:
5
Herb Stratum (Plot size: 30 )
1.
Microstegium vimineum
70
Yes
FAC
'Indicators of hydric soil and wetland hydrology must be
2.
Juncus effusus
5
No
OBL
present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
3.
4•
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
5,
more in diameter at breast height (DBH), regardless of
6
height.
7.
Sapling/Shrub - Woody plants, excluding vines, less
8.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
9.
10.
Herb - All herbaceous (non -woody) plants, regardless
11.
of size, and woody plants less than 3.28 ft tall.
12.
75
=Total Cover
Woody Vine - All woody vines greater than 3.28 ft in
50% of total cover:
38
20% of total cover:
15
height.
Woody Vine Stratum (Plot size: 30 )
1.
No rooted woody vines
2.
3.
4.
5.
Hydrophytic
=Total Cover
Vegetation
50% of total cover:
20% of total cover:
Present? Yes X No
Remarks: (If observed, list morphological adaptations below.)
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, WB
Sampling Point: WB-WET
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Types Loc2 Texture Remarks
0-12 10YR 5/2 95 7.5YR 5/8 5 C M Loamy/Clayey Prominent redox concentrations
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
_ Histosol (A1)
_Thin Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2)
—Barrier Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 15313, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4)
_ Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5)
_ Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
_Organic Bodies (A6) (LRR P, T, U)
X Depleted Matrix (F3)
(outside MLRA 150A, 150113)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U)
_ Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
_ Muck Presence (A8) (LRR U)
_ Depleted Dark Surface (F7)
_ Anomalous Bright Floodplain Soils (F20)
_ 1 cm Muck (A9) (LRR P, T)
_ Redox Depressions (F8)
(MLRA 153B)
_ Depleted Below Dark Surface (Al 1)
_ Marl (F10) (LRR U)
_ Red Parent Material (F21)
_Thick Dark Surface (Al2)
_Depleted Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
_ Sandy Mucky Mineral (S1) (LRR O, S)
_ Umbric Surface (F13) (LRR P, T, U)
_ Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4)
_Delta Ochric (F17) (MLRA 151)
(MLRA 153113, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 150B)
_Other (Explain in Remarks)
_ Stripped Matrix (S6)
_ Piedmont Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U)
_Anomalous Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U)
_ Very Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
Hydric Soil Present? Yes X No
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, WC
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/30/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: WC -WET
Investigator(s): David Cooper & Heather Smith Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Floodplain Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.729733 Long:-77.983322 Datum: NAD83
Soil Map Unit Name: Noboco loamy fine sand, 2 to 6 percent slopes NWI classification: PF01 C
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes No X
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS - Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes X No within a Wetland? Yes X No -
Wetland Hydrology Present? Yes X No
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal" conditions at the time of the site visit
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
X Surface Water (All)
_Aquatic Fauna (B13)
—Sparsely Vegetated Concave Surface (138)
X High Water Table (A2)
_ Marl Deposits (615) (LRR U)
X Drainage Patterns (1310)
X Saturation (A3)
_Hydrogen Sulfide Odor (C1)
_Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (133)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (134)
_Thin Muck Surface (C7)
_Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes X
No Depth (inches): 2
Water Table Present? Yes X
No Depth (inches): 6
Saturation Present? Yes X
No Depth (inches): 0
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain - Version 2.0

Wallace WWTF, WC
VEGETATION (Four Strata) - Use scientific names of plants. Sampling Point: WC -WET
Absolute
Dominant
Indicator
Tree Stratum (Plot size: 30 )
% Cover
Species?
Status
Dominance Test worksheet:
1.
Quercus michauxii
20
Yes
FACW
Number of Dominant Species
2.
Quercus bicolor
20
Yes
FACW
That Are OBL, FACW, or FAC: 7 (A)
3.
Nyssa biflora
10
No
OBL
Total Number of Dominant
4.
Quercus laurifolia
5
No
FACW
Species Across All Strata: 7 (B)
5•
Percent of Dominant Species
6.
That Are OBL, FACW, or FAC: 100.0% (A/B)
7.
Prevalence Index worksheet:
8.
Total % Cover of: Multiply by:
55
=Total Cover
OBL species x 1 =
50% of total cover:
28
20% of total cover:
11
FACW species x 2 =
Sapling/Shrub Stratum (Plot size: 30
)
FAC species x 3 =
1.
Ligustrum sinense
30
Yes
FAC
FACU species x 4 =
2.
Magnolia virginiana
5
No
FACW
UPL species x 5 =
3.
Column Totals: (A) (B)
4.
Prevalence Index = B/A =
5.
Hydrophytic Vegetation Indicators:
6.
_ 1 - Rapid Test for Hydrophytic Vegetation
7.
X 2 - Dominance Test is >50%
8.
3 - Prevalence Index is 153.0'
35
=Total Cover
_
-Problematic Hydrophytic Vegetation' (Explain)
50% of total cover:
18
20% of total cover:
7
Herb Stratum (Plot size: 30 )
1.
Woodwardia areolata
50
Yes
OBL
'Indicators of hydric soil and wetland hydrology must be
2.
Leucothoe axillaris
20
Yes
FACW
present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
3. Osmundastrum cinnamomeum 10 No FACW
4•
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
5•
more in diameter at breast height (DBH), regardless of
6
height.
7.
Sapling/Shrub - Woody plants, excluding vines, less
8.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
9.
10.
Herb - All herbaceous (non -woody) plants, regardless
11.
of size, and woody plants less than 3.28 ft tall.
12.
80
=Total Cover
Woody Vine - All woody vines greater than 3.28 ft in
50% of total cover:
40
20% of total cover:
16
height.
Woody Vine Stratum (Plot size: 30 )
1.
Smilax rotundifolia
10
Yes
FAC
2.
Toxicodendron radicans
10
Yes
FAC
3.
4.
5.
Hydrophytic
20
=Total Cover
Vegetation
50% of total cover:
10
20% of total cover:
4
Present? Yes X No
Remarks: (If observed, list morphological adaptations below.)
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, WC
Sampling Point: WC -WET
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Types Loc2 Texture Remarks
0-30 10YR 3/1 100 Muck
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
X Histosol (A1) _Thin
Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2) —Barrier
Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 153113, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4) _
Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5) _
Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
—Organic Bodies (A6) (LRR P, T, U) _
Depleted Matrix (F3)
(outside MLRA 150A, 15013)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U) _
Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
—Muck Presence (A8) (LRR U) _
Depleted Dark Surface (F7)
_Anomalous Bright Floodplain Soils (F20)
X 1 cm Muck (A9) (LRR P, T) _
Redox Depressions (F8)
(MLRA 153B)
_ Depleted Below Dark Surface (Al 1) —Marl
(F10) (LRR U)
—Red Parent Material (F21)
_Thick Dark Surface (Al2) _Depleted
Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
—Sandy Mucky Mineral (S1) (LRR O, S) _
Umbric Surface (F13) (LRR P, T, U)
—Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4) _Delta
Ochric (F17) (MLRA 151)
(MLRA 153B, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 15013)
_Other (Explain in Remarks)
—Stripped Matrix (S6) —Piedmont
Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U) _Anomalous
Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U) —Very
Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
Hydric Soil Present? Yes X No
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, WD
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/30/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: WD-WET
Investigator(s): David Cooper & Heather Smith Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.729774 Long:-77.982181 Datum: NAD83
Soil Map Unit Name: Muckalee loam, 0 to 1 percent slopes, frequently flooded NWI classification: PF01 C
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation X Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes No X
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes X No within a Wetland? Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal' conditions at the time of the site visit. Feature is part of
maintained access road.
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
_Surface Water (All)
_Aquatic Fauna (B13)
_Sparsely Vegetated Concave Surface (138)
X High Water Table (A2)
_ Marl Deposits (B15) (LRR U)
—Drainage Patterns (B10)
X Saturation (A3)
—Hydrogen Sulfide Odor (C1)
_ Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (63)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (B4)
_Thin Muck Surface (C7)
X Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes
No X Depth (inches):
Water Table Present? Yes X
No Depth (inches): 4
Saturation Present? Yes X
No Depth (inches): 0
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Abnormal, augmented hydrology fromWWTP
outfall, also soil & riprap berms that trap hydrology.
Ties to creek via narrow wetland connection through
maintained old road bed.
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

VEGETATION (Four Strata) - Use scientific names of plants.
Wallace WWTF, WD
Sampling Point: WD-WET
Tree Stratum (Plot size: 30 )
1. No rooted trees
2.
3.
4.
5.
6.
7.
8.
50% of total cover:
Sapling/Shrub Stratum (Plot size: 30 )
1. Ligustrum sinense
2.
3.
4.
5.
6.
7.
8.
50% of total cover: 3
Herb Stratum (Plot size: 30 )
1. Persicaria sagittata
2. Microstegium vimineum
3. Boehmeria cylindrica
4.
5.
6.
7.
8.
9.
10.
11.
12.
50% of total cover: 68
Woody Vine Stratum (Plot size: 30 )
1. No rooted woody vines
2.
3.
4.
5.
Absolute Dominant Indicatc
% Cover Species? Status
_ =Total Cover
20% of total cover:
5 Yes FAC
5 =Total Cover
20% of total cover: 1
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: 3 (A)
Total Number of Dominant
Species Across All Strata: 3 (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: 100.0% (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species x 1 =
FACW species x 2 =
FAC species x 3 =
FACU species x 4 =
UPL species x 5 =
Column Totals: (A) (B)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
_ 1 - Rapid Test for Hydrophytic Vegetation
X 2 - Dominance Test is >50%
_ 3 - Prevalence Index is :53.0'
Problematic Hydrophytic Vegetation' (Explain)
60 Yes OBL 'Indicators of hydric soil and wetland hydrology must be
60 Yes FAC present, unless disturbed or problematic.
15 No FACW Definitions of Four Vegetation Strata:
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
height.
Sapling/Shrub - Woody plants, excluding vines, less
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
Herb - All herbaceous (non -woody) plants, regardless
of size, and woody plants less than 3.28 ft tall.
135 =Total Cover Woody Vine - All woody vines greater than 3.28 ft in
20% of total cover: 27 height.
=Total Cover
50% of total cover: 20% of total cover:
Remarks: (If observed, list morphological adaptations below.)
Hydrophytic
Vegetation
Present? Yes X No
ENG FORM 6116-2-SG, JUL 2018
Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, WD
Sampling Point: WD-WET
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Types Loc2 Texture Remarks
0-5 10YR 4/1 90 10YR 5/8 10 C M Loamy/Clayey Prominent redox concentrations
5-12 10YR 6/3 40 10YR 6/6 50 C M Loamy/Clayey Distinct redox concentrations
7.5YR 4/6 10
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
_ Histosol (A1)
_Thin Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2)
—Barrier Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 15313, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4)
_ Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5)
_ Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
_Organic Bodies (A6) (LRR P, T, U)
X Depleted Matrix (F3)
(outside MLRA 150A, 150113)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U)
_ Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
_ Muck Presence (A8) (LRR U)
_ Depleted Dark Surface (F7)
_ Anomalous Bright Floodplain Soils (F20)
_ 1 cm Muck (A9) (LRR P, T)
_ Redox Depressions (F8)
(MLRA 153B)
_ Depleted Below Dark Surface (Al 1)
_ Marl (F10) (LRR U)
_ Red Parent Material (F21)
_Thick Dark Surface (Al2)
_Depleted Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
_ Sandy Mucky Mineral (S1) (LRR O, S)
_ Umbric Surface (F13) (LRR P, T, U)
_ Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4)
_Delta Ochric (F17) (MLRA 151)
(MLRA 153113, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 150B)
_Other (Explain in Remarks)
_ Stripped Matrix (S6)
_ Piedmont Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U)
_Anomalous Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U)
_ Very Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches): Hydric Soil Present? Yes X No
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, UPL1
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/27/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: UPL1
Investigator(s): David Cooper & Miguel Ortiz Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.732369 Long:-77.982366 Datum: NAD83
Soil Map Unit Name: Muckalee loam, 0 to 1 percent slopes, frequently flooded NWI classification: PF01 C
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes No X within a Wetland? Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal' conditions at the time of the site visit
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
_Surface Water (All)
_Aquatic Fauna (B13)
_Sparsely Vegetated Concave Surface (138)
_ High Water Table (A2)
_ Marl Deposits (B15) (LRR U)
—Drainage Patterns (B10)
—Saturation (A3)
—Hydrogen Sulfide Odor (C1)
_ Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (63)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (B4)
_Thin Muck Surface (C7)
X Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes
No X Depth (inches):
Water Table Present? Yes
No X Depth (inches):
Saturation Present? Yes
No X Depth (inches):
Wetland Hydrology Present? Yes No X
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

VEGETATION (Four Strata) - Use scientific names of plants.
Wallace WWTF, UPL1
Sampling Point: UPL1
Absolute
Dominant
Indicator
Tree Stratum (Plot size: 30 )
% Cover
Species?
Status
Dominance Test worksheet:
1.
Liquidambar styraciflua
20
Yes
FAC
Number of Dominant Species
2.
Acer rubrum
15
Yes
FAC
That Are OBL, FACW, or FAC: 8 (A)
3.
Quercus phellos
10
Yes
FACW
Total Number of Dominant
4.
Nyssa biflora
5
No
OBL
Species Across All Strata: 8 (B)
5
Percent of Dominant Species
6.
That Are OBL, FACW, or FAC: 100.0% (A/B)
7.
Prevalence Index worksheet:
8.
Total % Cover of: Multiply by:
50
=Total Cover
OBL species x 1 =
50% of total cover:
25
20% of total cover:
10
FACW species x 2 =
Sapling/Shrub Stratum (Plot size: 30
)
FAC species x 3 =
1.
Ligustrum sinense
90
Yes
FAC
FACU species x 4 =
2.
UPL species x 5 =
3.
Column Totals: (A) (B)
4.
Prevalence Index = B/A =
5.
Hydrophytic Vegetation Indicators:
6.
_ 1 - Rapid Test for Hydrophytic Vegetation
7.
X 2 - Dominance Test is >50%
8.
3 - Prevalence Index is :53.0'
90
=Total Cover
_
_ Problematic Hydrophytic Vegetation' (Explain)
50% of total cover:
45
20% of total cover:
18
Herb Stratum (Plot size: 30 )
1.
Ligustrum sinense
3
Yes
FAC
'Indicators of hydric soil and wetland hydrology must be
2.
Liquidambar styraciflua
2
Yes
FAC
present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
3.
4•
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
5•
more in diameter at breast height (DBH), regardless of
6
height.
7.
Sapling/Shrub - Woody plants, excluding vines, less
8.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
9.
10.
Herb - All herbaceous (non -woody) plants, regardless
11.
of size, and woody plants less than 3.28 ft tall.
12.
5
=Total Cover
Woody Vine - All woody vines greater than 3.28 ft in
50% of total cover:
3
20% of total cover:
1
height.
Woody Vine Stratum (Plot size: 30 )
1.
Vitis rotundifolia
5
Yes
FAC
2.
Smilax rotundifolia
5
Yes
FAC
3.
4.
5.
Hydrophytic
10
=Total Cover
Vegetation
50% of total cover:
5
20% of total cover:
2
Present? Yes X No
Remarks: (If observed, list morphological adaptations below.)
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, UPL1
Sampling Point: UPL1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
Matrix
Redox Features
(inches)
Color (moist)
%
Color (moist) % Types Loc2
Texture Remarks
0-14
10YR 3/2
100
Loamy/Clayey
14-18
10YR 5/2
95
10YR 5/6 5 C M
Loamy/Clayey Prominent redox concentrations
18-20
10YR 6/2
90
10YR 5/6 10 C M
Loamy/Clayey Prominent redox concentrations
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
_ Histosol (A1) _Thin
Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2) —Barrier
Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 153B, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4) _
Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5) _
Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
—Organic Bodies (A6) (LRR P, T, U) _
Depleted Matrix (F3)
(outside MLRA 150A, 150113)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U) _
Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
—Muck Presence (A8) (LRR U) _
Depleted Dark Surface (F7)
_Anomalous Bright Floodplain Soils (F20)
_ 1 cm Muck (A9) (LRR P, T) _
Redox Depressions (F8)
(MLRA 153B)
_ Depleted Below Dark Surface (All 1) —Marl
(F10) (LRR U)
—Red Parent Material (F21)
_Thick Dark Surface (Al2) _Depleted
Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
_ Sandy Mucky Mineral (S1) (LRR O, S) _
Umbric Surface (F13) (LRR P, T, U)
_ Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4) _Delta
Ochric (F17) (MLRA 151)
(MLRA 153113, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 150B)
_Other (Explain in Remarks)
_Stripped Matrix (S6) _Piedmont
Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U) _Anomalous
Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U) _
Very Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches): Hydric Soil Present? Yes No X
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

Wallace WWTF, UPL2
U.S. Army Corps of Engineers OMB Control#: 0710-xxxx, Exp: Pending
WETLAND DETERMINATION DATA SHEET — Atlantic and Gulf Coastal Plain Region Requirement Control Symbol EXEMPT.,
See ERDC/EL TR-07-24; the proponent agency is CECW-CO-R (Authority: AR 335-15, paragraph 5-2a)
Project/Site: Wallace WWTF Flood Protection City/County: Wallace/Duplin Sampling Date: 6/30/2023
Applicant/Owner: Highfill, Infrastructure Engineering, P.C. State: NC Sampling Point: UPL2
Investigator(s): David Cooper & Heather Smith Section, Township, Range: N/A
Landform (hillside, terrace, etc.): Depression Local relief (concave, convex, none): Concave Slope (%): 0-2
Subregion (LRR or MLRA): LRR T, MLRA 153A Lat: 34.729887 Long:-77.982213 Datum: NAD83
Soil Map Unit Name: Muckalee loam, 0 to 1 percent slopes, frequently flooded NWI classification: PF01 C
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes X No
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No Is the Sampled Area
Hydric Soil Present? Yes No X within a Wetland? Yes No X
Wetland Hydrology Present? Yes X No
Remarks:
The Antecedent Precipitation Tool states the area was experiencing "Wetter than normal" conditions at the time of the site visit
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
—Surface Soil Cracks (136)
_Surface Water (All)
_Aquatic Fauna (B13)
_Sparsely Vegetated Concave Surface (138)
—High Water Table (A2)
_ Marl Deposits (B15) (LRR U)
—Drainage Patterns (B10)
X Saturation (A3)
_Hydrogen Sulfide Odor (C1)
_Moss Trim Lines (B16)
—Water Marks (B1)
—Oxidized Rhizospheres on Living Roots (C3)
_ Dry -Season Water Table (C2)
_Sediment Deposits (132)
_Presence of Reduced Iron (C4)
_Crayfish Burrows (C8)
_ Drift Deposits (133)
—Recent Iron Reduction in Tilled Soils (C6)
—Saturation Visible on Aerial Imagery (C9)
_Algal Mat or Crust (134)
_Thin Muck Surface (C7)
X Geomorphic Position (D2)
_ Iron Deposits (135)
—Other (Explain in Remarks)
—Shallow Aquitard (D3)
_ Inundation Visible on Aerial Imagery (137)
_ FAC-Neutral Test (D5)
Water -Stained Leaves (139)
Sphagnum Moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes
No X Depth (inches):
Water Table Present? Yes
No X Depth (inches):
Saturation Present? Yes X
No Depth (inches): 11
Wetland Hydrology Present? Yes X No
(includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

VEGETATION (Four Strata) - Use scientific names of plants.
Wallace WWTF, UPL2
Sampling Point: UPL2
Tree Stratum (Plot size: 30 )
1. No rooted trees
2.
3.
4.
5.
6.
7.
8.
50% of total cover:
Sapling/Shrub Stratum (Plot size: 30 )
1. Ligustrum sinense
2.
3.
4.
5.
6.
7.
8.
50% of total cover: 40
Herb Stratum (Plot size: 30 )
1. Ligustrum sinense
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
50% of total cover: 35
Woody Vine Stratum (Plot size: 30 )
1. Vitis rotundifolia
2. Smilax rotundifolia
3.
4.
5.
Absolute Dominant Indicatc
% Cover Species? Status
=Total Cover
20% of total cover:
80 Yes FAC
80 =Total Cover
20% of total cover: 16
70 Yes FAC
70 =Total Cover
20% of total cover: 14
10 Yes FAC
5 Yes FAC
15 =Total Cover
50% of total cover: 8 20% of total cover: 3
Remarks: (If observed, list morphological adaptations below.)
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: 4
(A)
Total Number of Dominant
Species Across All Strata: 4
(B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: 100.0%
(A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species x 1 =
FACW species x 2 =
FAC species x 3 =
FACU species x 4 =
UPL species x 5 =
Column Totals: (A)
(B)
Prevalence Index = B/A =
Hydrophytic Vegetation Indicators:
_ 1 - Rapid Test for Hydrophytic Vegetation
X 2 - Dominance Test is >50%
3 - Prevalence Index is :53.0'
_
Problematic Hydrophytic Vegetation' (Explain)
'Indicators of hydric soil and wetland hydrology must be
present, unless disturbed or problematic.
Definitions of Four Vegetation Strata:
Tree - Woody plants, excluding vines, 3 in. (7.6 cm) or
more in diameter at breast height (DBH), regardless of
height.
Sapling/Shrub - Woody plants, excluding vines, less
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
Herb - All herbaceous (non -woody) plants, regardless
of size, and woody plants less than 3.28 ft tall.
Woody Vine - All woody vines greater than 3.28 ft in
height.
Hydrophytic
Vegetation
Present? Yes X No
ENG FORM 6116-2-SG, JUL 2018
Atlantic and Gulf Coastal Plain - Version 2.0

SOIL
Wallace WWTF, UPL2
Sampling Point: UPL2
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Types Loc2 Texture Remarks
0-6 2.5Y 3/3 100 Loamy/Clayey
6-12 2.5Y 3/2 98 7.5YR 5/8 2 C M Loamy/Clayey Prominent redox concentrations
Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.
2Location: PL=Pore Lining, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Indicators for Problematic Hydric Soils3:
_ Histosol (A1) _Thin
Dark Surface (S9) (LRR S, T, U)
_ 1 cm Muck (A9) (LRR O)
_ Histic Epipedon (A2) —Barrier
Islands 1 cm Muck (S12)
_2 cm Muck (A10) (LRR S)
—Black Histic (A3)
(MLRA 153113, 153D)
—Coast Prairie Redox (A16)
_ Hydrogen Sulfide (A4) _
Loamy Mucky Mineral (F1) (LRR O)
(outside MLRA 150A)
_ Stratified Layers (A5) _
Loamy Gleyed Matrix (F2)
—Reduced Vertic (F18)
—Organic Bodies (A6) (LRR P, T, U) _
Depleted Matrix (F3)
(outside MLRA 150A, 150113)
_ 5 cm Mucky Mineral (A7) (LRR P, T, U) _
Redox Dark Surface (F6)
—Piedmont Floodplain Soils (F19) (LRR P, T)
—Muck Presence (A8) (LRR U) _
Depleted Dark Surface (F7)
_Anomalous Bright Floodplain Soils (F20)
_ 1 cm Muck (A9) (LRR P, T) _
Redox Depressions (F8)
(MLRA 153B)
_ Depleted Below Dark Surface (Al 1) —Marl
(F10) (LRR U)
—Red Parent Material (F21)
_Thick Dark Surface (Al2) _Depleted
Ochric (F11) (MLRA 151)
_Very Shallow Dark Surface (F22)
_ Coast Prairie Redox (A16) (MLRA 150A)_
Iron -Manganese Masses (F12) (LRR O, P, T)
(outside MLRA 138, 152A in FL, 154)
—Sandy Mucky Mineral (S1) (LRR O, S) _
Umbric Surface (F13) (LRR P, T, U)
—Barrier Islands Low Chroma Matrix (TS7)
_Sandy Gleyed Matrix (S4) _Delta
Ochric (F17) (MLRA 151)
(MLRA 15313, 153D)
_Sandy Redox (S5)
Reduced Vertic (F18) (MLRA 150A, 15013)
_Other (Explain in Remarks)
—Stripped Matrix (S6) —Piedmont
Floodplain Soils (F19) (MLRA 149A)
_ Dark Surface (S7) (LRR P, S, T, U) _Anomalous
Bright Floodplain Soils (F20)
_ Polyvalue Below Surface (S8)
(MLRA 149A, 153C, 153D)
3Indicators of hydrophytic vegetation and
(LRR S, T, U) —Very
Shallow Dark Surface (F22)
wetland hydrology must be present,
(MLRA 138, 152A in FL, 154)
unless disturbed or problematic.
Restrictive Layer (if observed):
Type:
Depth (inches):
Remarks:
Hydric Soil Present? Yes No X
ENG FORM 6116-2-SG, JUL 2018 Atlantic and Gulf Coastal Plain — Version 2.0

NC WAM WETLAND ASSESSMENT FORM Wallace WWTF, WA
Accompanies User Manual Version 5
USACE AID#: NCDWR #:
Project Name Wallace WWTF Flood Protection Date of Evaluation 2023-06-27
Applicant/Owner Name Highfill, Infrastructure Engineering, P.C. Wetland Site Name WA
Wetland Type Headwater Forest Assessor Name/Organization David Cooper & Miguel Ortiz / VHB
Level III Ecoregion Middle Atlantic Coastal Plain Nearest Named Water Body Little Rockfish Creek
River Basin Cape Fear USGS 8-Digit Catalogue Unit 03030005
County Duplin NCDWR Region Wilmington
F;Yes K;No Precipitation within 48 hrs? Latitude/Longitude (deci-degrees) (34.732314,-77.982579)
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.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? ;Yes F,No
Regulatory Considerations -Were regulatory considerations evaluated? *;Yes ;No If Yes, check all that apply to the assessment area.
r Anadromous fish
r Federally protected species or State endangered or threatened species
r- NCDWR riparian buffer rule in effect
F Abuts a Primary Nursery Area (PNA)
r Publicly owned property
r N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
r Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
r Designated NCNHP reference community
F Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
Blackwater
Brownwater
F- Tidal (if tidal, check one of the following boxes) r; Lunar r; Wind r; Both
Is the assessment area on a coastal island? ;Yes F,No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ;Yes F,No
Does the assessment area experience overbank flooding during normal rainfall conditions? Yes F,No
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 VS
;A+;A Not severely altered
+; B; B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing,
less diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration - assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and
duration (Sub). Consider both increase and decrease in hydrology. A ditch <- 1 foot deep is considered to affect surface water only,
while a ditch > 1 foot deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
A A Water storage capacity and duration are not altered.
B; B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
;C ;C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief - assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetland
type (WT).
AA WT
3a.;A;A Majority of wetland with depressions able to pond water > 1 foot deep
B; B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
+;C+;C Majority of wetland with depressions able to pond water 3 to 6 inches deep
D; D Depressions able to pond water < 3 inches deep
3b.;A Evidence that maximum depth of inundation is greater than 2 feet
B Evidence that maximum depth of inundation is between 1 and 2 feet
+;C Evidence that maximum depth of inundation is less than 1 foot

4. Soil Texture/Structure - assessment area condition metric (skip for all marshes) Wallace WWTF, WA
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. 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
E ; B; B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
C; C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use - opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). 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 5M 2M
r A Fl A r A >- 10% impervious surfaces
F B r B r B Confined animal operations (or other local, concentrated source of pollutants)
r C r C r C >_ 20% coverage of pasture
F D F D F D >_ 20% coverage of agricultural land (regularly plowed land)
F E r E r E >_ 20% coverage of maintained grass/herb
r F r F r F >_ 20% coverage of clear-cut land
i— G r G r G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent dainage and/or overbank flow from affectio the
assessment area.
Wetland Acting as Vegetated Buffer - assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
;Yes [;No If Yes, continue to 7b. If No, skip to Metric 8.
7b. How much of the first 50 feet from the bank is weltand? (Wetland buffer need only be present on one side of the water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
A >- 50 feet
B From 30 to < 50 feet
C From 15 to < 30 feet
D From 5 to < 15 feet
E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
<_ 15-feet wide F, > 15-feet wide r; Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
Yes r; 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.
Wetland Width at the Assessment Area - wetland type/wetland complex condition metric (evaluate WT for all marshes
and Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp
Forest only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT) and the wetland complex at the
assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
A; A >- 100 feet
B; B From 80 to < 100 feet
C; C From 50 to < 80 feet
D; D From 40 to < 50 feet
E; E From 30 to < 40 feet
F+; F From 15 to < 30 feet
G G From 5 to < 15 feet
H H < 5 feet

9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands) Wallace WWTF, WA
Answer for assessment area dominant landform.
A Evidence of short -duration inundation (< 7 consecutive days)
B Evidence of saturation, without evidence of inundation
;C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
;A Sediment deposition is not excessive, but at approximately natural levels.
B Sediment deposition is excessive, but not overwhelming the wetland.
K; C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select X" for the FW column.
WT WC FW (if applicable)
CA CA CA >_ 500 acres
CB CB CB From 100 to < 500 acres
CC CC CC From 50 to < 100 acres
CD CD C D From 25 to < 50 acres
C E C E C E From 10 to < 25 acres
C F C F C F From 5 to < 10 acres
C G C G C G From 1 to < 5 acres
C H C H C H From 0.5 to < 1 acre
C I C I C I From 0.1 to < 0.5 acre
E;J E;J E;J From 0.01 to < 0.1 acre
,r'. K "K C 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.
LIB 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 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 Loosely
[:A [:A >_ 500 acres
E B E B From 100 to < 500 acres
CC E C From 50 to < 100 acres
CD E D From 10 to < 50 acres
C E C E < 10 acres
CF CF Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
CYes C No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear-cut,
select option "C."
[:A 0
[:B 1 to
E;C 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
CA 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.
E B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or
clearing. It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
CC Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in
at least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
CA 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.
CC Vegetation is dominated by exotic species (>50% cover of exotics).

Wallace WWTF, WA
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
E 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.
L]A
> 25%
coverage of vegetation
L]B
< 25% coverage of vegetation
17c. Check a box in each
column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider structure
in airspace
above the assessment area (AA) and the wetland type (WT) separately.
AA
WT
o
�A
�A
Canopy closed, or nearly closed, with natural gaps associated with natural processes
m
L]B
L]B
Canopy present, but opened more than natural gaps
v
L]C
L]C
Canopy sparse or absent
o
L]A
L]A
Dense mid-story/sapling layer
cn
E;B
E;B
Moderate density mid-story/sapling layer
L]C
L]C
Mid-story/sapling layer sparse or absent
L]A
L]A
Dense shrub layer
L
E;B
E;B
Moderate density shrub layer
0
L]C
L]C
Shrub layer sparse or absent
L]A
L]A
Dense herb layer
�5
E;B
E;B
Moderate density herb layer
_
L]C
L]C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
[]A Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
E;B Not
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
L]A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
E;B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
L]C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
[]A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
E;B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation
and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
L]A L]B L]C
L]D
22. Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization,
diversion, man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
E;A Overbank and overland flow are not severely altered in the assessment area.
L]B Overbank flow is severely altered in the assessment area.
L]C Overland flow is severely altered in the assessment area.
L]D Both overbank and overland flow are severely altered in the assessment area.
Notes

Wallace WWTF, WA
NC WAM Wetland Rating Sheet
Accompanies User Manual
Version 5.0
Wetland Site Name WA
Date
2023-06-27
Wetland Type Headwater Forest
Assessor Name/Organization d Cooper & Miguel Ortiz /
Notes on Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
YES
Wetland is intensively managed (Y/N)
NO
Assessment area is located within 50 feet of a natural tributary or other open
water (Y/N)
YES
Assessment area is substantially altered by beaver (Y/N)
NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
NO
Assessment area is on a coastal island (Y/N)
NO
Sub -function Rating Summary
Function Sub -function
Metrics
Rating
Hydrology Surface Storage and Retention
Condition
HIGH
Sub -Surface Storage and Retention
Condition
HIGH
Water Quality Pathogen Change
Condition
LOW
Condition/Opportunity
MEDIUM
Opportunity Presence? (Y/N)
YES
Particulate Change
Condition
HIGH
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Soluble Change
Condition
MEDIUM
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Habitat Physical Structure
Condition
MEDIUM
Landscape Patch Structure
Condition
LOW
Vegetation Composition
Condition
MEDIUM
Function Rating Summary
Function Metrics/Notes
Rating
Hydrology Condition
HIGH
Water Quality Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Habitat Condition
LOW
Overall Wetland Rating HIGH

NC WAM WETLAND ASSESSMENT FORM Wallace WWTF, WB
Accompanies User Manual Version 5
USACE AID#: NCDWR #:
Project Name Wallace WWTF Flood Protection Date of Evaluation 2023-06-27
Applicant/Owner Name Highfill, Infrastructure Engineering, P.C. Wetland Site Name WB
Wetland Type Bottomland Hardwood Forest Assessor Name/Organization David Cooper & Miguel Ortiz / VHB
Level III Ecoregion Middle Atlantic Coastal Plain Nearest Named Water Body Little Rockfish Creek
River Basin Cape Fear USGS 8-Digit Catalogue Unit 03030005
County Duplin NCDWR Region Wilmington
F;Yes K;No Precipitation within 48 hrs? Latitude/Longitude (deci-degrees) (34.731404,-77.981682)
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.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? +;Yes r;No
Regulatory Considerations -Were regulatory considerations evaluated? *;Yes ;No If Yes, check all that apply to the assessment area.
r Anadromous fish
r Federally protected species or State endangered or threatened species
r- NCDWR riparian buffer rule in effect
F Abuts a Primary Nursery Area (PNA)
r Publicly owned property
r N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
r Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
r Designated NCNHP reference community
F Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
Blackwater
Brownwater
F- Tidal (if tidal, check one of the following boxes) r; Lunar r; Wind r; Both
Is the assessment area on a coastal island? Yes F,No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ;Yes F, No
Does the assessment area experience overbank flooding during normal rainfall conditions? Yes F,No
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 VS
;A;A Not severely altered
+; B+; B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing,
less diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration - assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and
duration (Sub). Consider both increase and decrease in hydrology. A ditch <- 1 foot deep is considered to affect surface water only,
while a ditch > 1 foot deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
A A Water storage capacity and duration are not altered.
B; B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
*;C ;C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief - assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetland
type (WT).
AA WT
3a.;A;A Majority of wetland with depressions able to pond water > 1 foot deep
B B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
+;C+;C Majority of wetland with depressions able to pond water 3 to 6 inches deep
D; D Depressions able to pond water < 3 inches deep
3b.;A Evidence that maximum depth of inundation is greater than 2 feet
B Evidence that maximum depth of inundation is between 1 and 2 feet
+;C Evidence that maximum depth of inundation is less than 1 foot

4. Soil Texture/Structure - assessment area condition metric (skip for all marshes) Wallace WWTF, WB
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. 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 K;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 K; C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use - opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). 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 5M 2M
r A Fl A r A >- 10% impervious surfaces
F B r B r B Confined animal operations (or other local, concentrated source of pollutants)
r C r C r C >_ 20% coverage of pasture
F D F D F D >_ 20% coverage of agricultural land (regularly plowed land)
F E r E r E >_ 20% coverage of maintained grass/herb
r F r F r F >_ 20% coverage of clear-cut land
i— G r G r G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent dainage and/or overbank flow from affectio the
assessment area.
Wetland Acting as Vegetated Buffer - assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
;Yes [;No If Yes, continue to 7b. If No, skip to Metric 8.
7b. How much of the first 50 feet from the bank is weltand? (Wetland buffer need only be present on one side of the water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
A >- 50 feet
B From 30 to < 50 feet
C From 15 to < 30 feet
D From 5 to < 15 feet
E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
<_ 15-feet wide F, > 15-feet wide r; Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
Yes r; 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.
Wetland Width at the Assessment Area - wetland type/wetland complex condition metric (evaluate WT for all marshes
and Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp
Forest only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT) and the wetland complex at the
assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
A; A >- 100 feet
B; B From 80 to < 100 feet
C C From 50 to < 80 feet
D; D From 40 to < 50 feet
E; E From 30 to < 40 feet
F+; F From 15 to < 30 feet
G G From 5 to < 15 feet
H H < 5 feet

9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands) Wallace WWTF, WB
Answer for assessment area dominant landform.
A Evidence of short -duration inundation (< 7 consecutive days)
B Evidence of saturation, without evidence of inundation
C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
;A Sediment deposition is not excessive, but at approximately natural levels.
B Sediment deposition is excessive, but not overwhelming the wetland.
C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select X" for the FW column.
WT WC FW (if applicable)
CA CA CA >_ 500 acres
CB CB CB From 100 to < 500 acres
CC CC CC From 50 to < 100 acres
CD CD C D From 25 to < 50 acres
C E C E C E From 10 to < 25 acres
C F C F C F From 5 to < 10 acres
C G C G C G From 1 to < 5 acres
C H C H C H From 0.5 to < 1 acre
C I C I C I From 0.1 to < 0.5 acre
CJ CJ CJ From 0.01 to < 0.1 acre
,r•'. K *] K K < 0.01 acre or assessment area is clear-cut
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
"A Pocosin is the full extent (>_ 90%) of its natural landscape size.
LIB 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 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 Loosely
[:A [:A >_ 500 acres
E B E B From 100 to < 500 acres
CC E C From 50 to < 100 acres
CD E D From 10 to < 50 acres
C E C E < 10 acres
F�F CF Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
F, Yes F, No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear-cut,
select option "C."
[:A 0
CB 1 to
EC 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
CA 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.
CB 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.
E C Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in
at least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
CA 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.
CC Vegetation is dominated by exotic species (>50% cover of exotics).

Wallace WWTF, WB
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
E Yes L: 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.
L]A
> 25%
coverage of vegetation
L]B
< 25% coverage of vegetation
17c. Check a box in each
column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider structure
in airspace
above the assessment area (AA) and the wetland type (WT) separately.
AA
WT
oL]A
L]A
Canopy closed, or nearly closed, with natural gaps associated with natural processes
m
L]B
L]B
Canopy present, but opened more than natural gaps
v
E;C
E;C
Canopy sparse or absent
o
L]A
L]A
Dense mid-story/sapling layer
cn
E;B
E;B
Moderate density mid-story/sapling layer
L]C
L]C
Mid-story/sapling layer sparse or absent
L]A
L]A
Dense shrub layer
L
E;B
E;B
Moderate density shrub layer
0
L]C
L]C
Shrub layer sparse or absent
E;A
E;A
Dense herb layer
L]B
L]B
Moderate density herb layer
C
L]C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
[]A Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
E;B Not
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
L]A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
L]B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
[]A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
E;B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation
and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
L]A L]B L]C
L]D
22. Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization,
diversion, man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
E;A Overbank and overland flow are not severely altered in the assessment area.
L]B Overbank flow is severely altered in the assessment area.
L]C Overland flow is severely altered in the assessment area.
L]D Both overbank and overland flow are severely altered in the assessment area.
Notes

Wallace WWTF, WB
NC WAM Wetland Rating Sheet
Accompanies User Manual
Version 5.0
Wetland Site Name WB
Date
2023-06-27
Wetland Type Bottomland Hardwood Forest
Assessor Name/Organization d Cooper & Miguel Ortiz /
Notes on Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
YES
Wetland is intensively managed (Y/N)
YES
Assessment area is located within 50 feet of a natural tributary or other open
water (Y/N)
YES
Assessment area is substantially altered by beaver (Y/N)
NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
NO
Assessment area is on a coastal island (Y/N)
NO
Sub -function Rating Summary
Function Sub -function
Metrics
Rating
Hydrology Surface Storage and Retention
Condition
HIGH
Sub -Surface Storage and Retention
Condition
MEDIUM
Water Quality Pathogen Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Particulate Change
Condition
MEDIUM
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Soluble Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Habitat Physical Structure
Condition
LOW
Landscape Patch Structure
Condition
LOW
Vegetation Composition
Condition
LOW
Function Rating Summary
Function Metrics/Notes
Rating
Hydrology Condition
HIGH
Water Quality Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Habitat Condition
LOW
Overall Wetland Rating HIGH

NC WAM WETLAND ASSESSMENT FORM Wallace WWTF, WC
Accompanies User Manual Version 5
USACE AID#: NCDWR #:
Project Name Wallace WWTF Flood Protection Date of Evaluation 2023-06-30
Applicant/Owner Name Highfill, Infrastructure Engineering, P.C. Wetland Site Name WC
Wetland Type Headwater Forest Assessor Name/Organization David Cooper & Heather Smith / VHB
Level III Ecoregion Middle Atlantic Coastal Plain Nearest Named Water Body Little Rockfish Creek
River Basin Cape Fear USGS 8-Digit Catalogue Unit 03030005
County Duplin NCDWR Region Wilmington
;Yes F,No Precipitation within 48 hrs? Latitude/Longitude (deci-degrees) (34.729733,-77.983322)
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.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? ;Yes F,No
Regulatory Considerations -Were regulatory considerations evaluated? *;Yes ;No If Yes, check all that apply to the assessment area.
r Anadromous fish
r Federally protected species or State endangered or threatened species
r- NCDWR riparian buffer rule in effect
F Abuts a Primary Nursery Area (PNA)
r Publicly owned property
r N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
r Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
r Designated NCNHP reference community
F Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
Blackwater
Brownwater
F- Tidal (if tidal, check one of the following boxes) r; Lunar r; Wind r; Both
Is the assessment area on a coastal island? ;Yes F,No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ;Yes F,No
Does the assessment area experience overbank flooding during normal rainfall conditions? Yes F,No
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 VS
+;A+;A Not severely altered
B; B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing,
less diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration - assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and
duration (Sub). Consider both increase and decrease in hydrology. A ditch <- 1 foot deep is considered to affect surface water only,
while a ditch > 1 foot deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
A A Water storage capacity and duration are not altered.
B; B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
;C ;C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief - assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetland
type (WT).
AA WT
3a.;A;A Majority of wetland with depressions able to pond water > 1 foot deep
B; B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
+;C+;C Majority of wetland with depressions able to pond water 3 to 6 inches deep
D; D Depressions able to pond water < 3 inches deep
3b.;A Evidence that maximum depth of inundation is greater than 2 feet
B Evidence that maximum depth of inundation is between 1 and 2 feet
+;C Evidence that maximum depth of inundation is less than 1 foot

4. Soil Texture/Structure - assessment area condition metric (skip for all marshes) Wallace WWTF, WC
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. A Sandy soil
B Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
C Loamy or clayey soils not exhibiting redoximorphic features
D Loamy or clayey gleyed soil
E Histosol or histic epipedon
4b.;A Soil ribbon < 1 inch
B Soil ribbon >- 1 inch
4c. A No peat or muck presence
B A peat or muck presence
5. Discharge into Wetland - opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub -surface pollutants or discharges (Sub).
Examples of sub -surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf Sub
;A;A Little or no evidence of pollutants or discharges entering the assessment area
B; B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
C; C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use - opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). 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 5M 2M
r A Fl A r A >- 10% impervious surfaces
F B r B r B Confined animal operations (or other local, concentrated source of pollutants)
r C r C r C >_ 20% coverage of pasture
F D F D F D >_ 20% coverage of agricultural land (regularly plowed land)
F E r E r E >_ 20% coverage of maintained grass/herb
r F r F r F >_ 20% coverage of clear-cut land
i— G r G r G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent dainage and/or overbank flow from affectio the
assessment area.
Wetland Acting as Vegetated Buffer - assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
;Yes [;No If Yes, continue to 7b. If No, skip to Metric 8.
7b. How much of the first 50 feet from the bank is weltand? (Wetland buffer need only be present on one side of the water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
A >- 50 feet
B From 30 to < 50 feet
C From 15 to < 30 feet
D From 5 to < 15 feet
E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
<_ 15-feet wide � > 15-feet wide r", Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
Yes r; 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.
Wetland Width at the Assessment Area - wetland type/wetland complex condition metric (evaluate WT for all marshes
and Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp
Forest only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT) and the wetland complex at the
assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
A+; A >- 100 feet
B; B From 80 to < 100 feet
C; C From 50 to < 80 feet
D; D From 40 to < 50 feet
E; E From 30 to < 40 feet
F; F From 15 to < 30 feet
G G From 5 to < 15 feet
H H < 5 feet

9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands) Wallace WWTF, WC
Answer for assessment area dominant landform.
A Evidence of short -duration inundation (< 7 consecutive days)
B Evidence of saturation, without evidence of inundation
;C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
;A Sediment deposition is not excessive, but at approximately natural levels.
B Sediment deposition is excessive, but not overwhelming the wetland.
K; C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select X" for the FW column.
WT WC FW (if applicable)
L]A L]A L]A >_ 500 acres
L]B L]B L]B From 100 to < 500 acres
L]C L]C L]C From 50 to < 100 acres
L]D L]D L] D From 25 to < 50 acres
L]E L]E L]E From 10 to < 25 acres
L] F L] F L] F From 5 to < 10 acres
G E; G E; G From 1 to < 5 acres
L] H L] H L] H From 0.5 to < 1 acre
L] I L] I L] I From 0.1 to < 0.5 acre
L]J L�J L]J From 0.01 to < 0.1 acre
L] K F ' K L]K < 0.01 acre or assessment area is clear-cut
u
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
"A Pocosin is the full extent (>_ 90%) of its natural landscape size.
LIB 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 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 Loosely
[:A [:A >_ 500 acres
E B E B From 100 to < 500 acres
C E C From 50 to < 100 acres
D E D From 10 to < 50 acres
E L]E < 10 acres
CF L]F Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
CYes C No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear-cut,
select option "C."
[:A 0
[:B 1 to
E;C 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
EA Vegetation is close to reference condition in species present and their proportions. Lower strata composed of appropriate
species, with exotic plants absent or sparse within the assessment area.
B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or
clearing. It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
C Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in
at least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
EA Vegetation diversity is high and is composed primarily of native species (<10% cover of exotics).
B Vegetation diversity is low or has > 10% to 50% cover of exotics.
C Vegetation is dominated by exotic species (>50% cover of exotics).

Wallace WWTF, WC
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
E 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.
L]A
> 25%
coverage of vegetation
L]B
< 25% coverage of vegetation
17c. Check a box in each
column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider structure
in airspace
above the assessment area (AA) and the wetland type (WT) separately.
AA
WT
o
�A
�A
Canopy closed, or nearly closed, with natural gaps associated with natural processes
m
L]B
L]B
Canopy present, but opened more than natural gaps
v
L]C
L]C
Canopy sparse or absent
o
E;A
E;A
Dense mid-story/sapling layer
cn
L�B
L�B
Moderate density mid-story/sapling layer
L]C
L]C
Mid-story/sapling layer sparse or absent
E;A
E;A
Dense shrub layer
L
L]B
L]B
Moderate density shrub layer
0
L]C
L]C
Shrub layer sparse or absent
E;A
E;A
Dense herb layer
L]B
L]B
Moderate density herb layer
C
L]C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
[]A Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
E;B Not
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
L]A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
E;B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
L]C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
[]A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
E;B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation
and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
L]A L]B L]C
L]D
22. Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization,
diversion, man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
E;A Overbank and overland flow are not severely altered in the assessment area.
L]B Overbank flow is severely altered in the assessment area.
L]C Overland flow is severely altered in the assessment area.
L]D Both overbank and overland flow are severely altered in the assessment area.
Notes

Wallace WWTF, WC
NC WAM Wetland Rating Sheet
Accompanies User Manual
Version 5.0
Wetland Site Name WC
Date
2023-06-30
Wetland Type Headwater Forest
Assessor Name/Organization
Cooper & Heather Smith
Notes on Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
YES
Wetland is intensively managed (Y/N)
NO
Assessment area is located within 50 feet of a natural tributary or other open
water (Y/N)
YES
Assessment area is substantially altered by beaver (Y/N)
NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
NO
Assessment area is on a coastal island (Y/N)
NO
Sub -function Rating Summary
Function Sub -function
Metrics
Rating
Hydrology Surface Storage and Retention
Condition
HIGH
Sub -Surface Storage and Retention
Condition
HIGH
Water Quality Pathogen Change
Condition
LOW
Condition/Opportunity
LOW
Opportunity Presence? (Y/N)
YES
Particulate Change
Condition
HIGH
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Soluble Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Habitat Physical Structure
Condition
HIGH
Landscape Patch Structure
Condition
LOW
Vegetation Composition
Condition
HIGH
Function Rating Summary
Function Metrics/Notes
Rating
Hydrology Condition
HIGH
Water Quality Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Habitat Condition
HIGH
Overall Wetland Rating HIGH

NC WAM WETLAND ASSESSMENT FORM Wallace WWTF, WD
Accompanies User Manual Version 5
USACE AID#: NCDWR #:
Project Name Wallace WWTF Flood Protection Date of Evaluation 2023-06-30
Applicant/Owner Name Highfill, Infrastructure Engineering, P.C. Wetland Site Name WD
Wetland Type Bottomland Hardwood Forest Assessor Name/Organization David Cooper & Heather Smith / VHB
Level III Ecoregion Middle Atlantic Coastal Plain Nearest Named Water Body Little Rockfish Creek
River Basin Cape Fear USGS 8-Digit Catalogue Unit 03030005
County Duplin NCDWR Region Wilmington
;Yes F; No Precipitation within 48 hrs? Latitude/Longitude (deci-degrees) (34.729774,-77.982181)
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.
• Hydrological modifications (examples: ditches, dams, beaver dams, dikes, berms, ponds, etc.)
• Surface and sub -surface discharges into the wetland (examples: discharges containing obvious pollutants, presence of nearby
septic tanks, underground storage tanks (USTs), hog lagoons, etc.)
• Signs of vegetation stress (examples: vegetation mortality, insect damage, disease, storm damage, salt intrusion, etc.)
• Habitat/plant community alteration (examples: mowing, clear -cutting, exotics, etc.)
Is the assessment area intensively managed? +;Yes r;No
Regulatory Considerations -Were regulatory considerations evaluated? *;Yes ;No If Yes, check all that apply to the assessment area.
r Anadromous fish
r Federally protected species or State endangered or threatened species
r- NCDWR riparian buffer rule in effect
F Abuts a Primary Nursery Area (PNA)
r Publicly owned property
r N.C. Division of Coastal Management Area of Environmental Concern (AEC) (including buffer)
r Abuts a stream with a NCDWQ classification of SA or supplemental classifications of HQW, ORW, or Trout
r Designated NCNHP reference community
F Abuts a 303(d)-listed stream or a tributary to a 303(d)-listed stream
What type of natural stream is associated with the wetland, if any? (check all that apply)
Blackwater
Brownwater
F- Tidal (if tidal, check one of the following boxes) r; Lunar r; Wind r; Both
Is the assessment area on a coastal island? Yes F,No
Is the assessment area's surface water storage capacity or duration substantially altered by beaver? ;Yes F, No
Does the assessment area experience overbank flooding during normal rainfall conditions? Yes F,No
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 VS
+;A;A Not severely altered
B+; B Severely altered over a majority of the assessment area (ground surface alteration examples: vehicle tracks, excessive
sedimentation, fire -plow lanes, skidder tracks, bedding, fill, soil compaction, obvious pollutants) (vegetation structure
alteration examples: mechanical disturbance, herbicides, salt intrusion [where appropriate], exotic species, grazing,
less diversity [if appropriate], hydrologic alteration)
Surface and Sub -Surface Storage Capacity and Duration - assessment area condition metric
Check a box in each column. Consider surface storage capacity and duration (Surf) and sub -surface storage capacity and
duration (Sub). Consider both increase and decrease in hydrology. A ditch <- 1 foot deep is considered to affect surface water only,
while a ditch > 1 foot deep is expected to affect both surface and sub -surface water. Consider tidal flooding regime, if applicable.
Surf Sub
A A Water storage capacity and duration are not altered.
B; B Water storage capacity or duration are altered, but not substantially (typically, not sufficient to change vegetation).
;C ;C Water storage capacity or duration are substantially altered (typically, alteration sufficient to result in vegetation
change) (examples: draining, flooding, soil compaction, filling, excessive sedimentation, underground utility lines).
Water Storage/Surface Relief - assessment area/wetland type condition metric (skip for all marshes)
Check a box in each column for each group below. Select the appropriate storage for the assessment area (AA) and the wetland
type (WT).
AA WT
3a.;A;A Majority of wetland with depressions able to pond water > 1 foot deep
B B Majority of wetland with depressions able to pond water 6 inches to 1 foot deep
;C;C Majority of wetland with depressions able to pond water 3 to 6 inches deep
+; D+; D Depressions able to pond water < 3 inches deep
3b.;A Evidence that maximum depth of inundation is greater than 2 feet
B Evidence that maximum depth of inundation is between 1 and 2 feet
+;C Evidence that maximum depth of inundation is less than 1 foot

4. Soil Texture/Structure - assessment area condition metric (skip for all marshes) Wallace WWTF, WD
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. A Sandy soil
B Loamy or clayey soils exhibiting redoximorphic features (concentrations, depletions, or rhizospheres)
C Loamy or clayey soils not exhibiting redoximorphic features
D Loamy or clayey gleyed soil
E Histosol or histic epipedon
4b.;A Soil ribbon < 1 inch
B Soil ribbon >- 1 inch
4c. A No peat or muck presence
B A peat or muck presence
5. Discharge into Wetland - opportunity metric
Check a box in each column. Consider surface pollutants or discharges (Surf) and sub -surface pollutants or discharges (Sub).
Examples of sub -surface discharges include presence of nearby septic tank, underground storage tank (UST), etc.
Surf Sub
;A;A Little or no evidence of pollutants or discharges entering the assessment area
B; B Noticeable evidence of pollutants or discharges entering the wetland and stressing, but not overwhelming the
treatment capacity of the assessment area
C; C Noticeable evidence of pollutants or discharges (pathogen, particulate, or soluble) entering the assessment area and
potentially overwhelming the treatment capacity of the wetland (water discoloration, dead vegetation, excessive
sedimentation, odor)
6. Land Use - opportunity metric (skip for non -riparian wetlands)
Check all that apply (at least one box in each column). Evaluation involves a GIS effort with field adjustment. Consider sources
draining to assessment area within entire upstream watershed (WS), within 5 miles and within the watershed draining to the
assessment area (5M), and within 2 miles and within the watershed draining to the assessment area (2M). 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 5M 2M
r A Fl A r A >- 10% impervious surfaces
F B r B r B Confined animal operations (or other local, concentrated source of pollutants)
r C r C r C >_ 20% coverage of pasture
F D F D F D >_ 20% coverage of agricultural land (regularly plowed land)
F E r E r E >_ 20% coverage of maintained grass/herb
r F r F r F >_ 20% coverage of clear-cut land
i— G r G r G Little or no opportunity to improve water quality. Lack of opportunity may result from little or no disturbance in
the watershed or hydrologic alterations that prevent dainage and/or overbank flow from affectio the
assessment area.
Wetland Acting as Vegetated Buffer - assessment area/wetland complex condition metric (skip for non -riparian wetlands)
7a. Is assessment area within 50 feet of a tributary or other open water?
;Yes [;No If Yes, continue to 7b. If No, skip to Metric 8.
7b. How much of the first 50 feet from the bank is weltand? (Wetland buffer need only be present on one side of the water body. Make
buffer judgment based on the average width of wetland. Record a note if a portion of the buffer has been removed or disturbed.)
A >- 50 feet
B From 30 to < 50 feet
C From 15 to < 30 feet
D From 5 to < 15 feet
E < 5 feet or buffer bypassed by ditches
7c. Tributary width. If the tributary is anastomosed, combine widths of channels/braids for a total width.
<_ 15-feet wide F, > 15-feet wide r; Other open water (no tributary present)
7d. Do roots of assessment area vegetation extend into the bank of the tributary/open water?
Yes r; 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.
Wetland Width at the Assessment Area - wetland type/wetland complex condition metric (evaluate WT for all marshes
and Estuarine Woody Wetland only; evaluate WC for Bottomland Hardwood Forest, Headwater Forest, and Riverine Swamp
Forest only)
Check a box in each column. Select the average width for the wetland type at the assessment area (WT) and the wetland complex at the
assessment area (WC). See User Manual for WT and WC boundaries.
WT WC
A; A >- 100 feet
B; B From 80 to < 100 feet
C C From 50 to < 80 feet
D; D From 40 to < 50 feet
E; E From 30 to < 40 feet
F; F From 15 to < 30 feet
G; G From 5 to < 15 feet
H H < 5 feet

9. Inundation Duration — assessment area condition metric (skip for non -riparian wetlands) Wallace WWTF, WD
Answer for assessment area dominant landform.
A Evidence of short -duration inundation (< 7 consecutive days)
B Evidence of saturation, without evidence of inundation
C Evidence of long -duration inundation or very long -duration inundation (7 to 30 consecutive days or more)
10. Indicators of Deposition — assessment area condition metric (skip for non -riparian wetlands and all marshes)
Consider recent deposition only (no plant growth since deposition).
;A Sediment deposition is not excessive, but at approximately natural levels.
B Sediment deposition is excessive, but not overwhelming the wetland.
C Sediment deposition is excessive and is overwhelming the wetland.
11. Wetland Size — wetland type/wetland complex condition metric
Check a box in each column. Involves a GIS effort with field adjustment. This metric evaluates three aspects of the wetland area: the
size of the wetland type (WT), the size of the wetland complex (WC), and the size of the forested wetland (FW) (if applicable, see User
Manual). See the User Manual for boundaries of these evaluation areas. If assessment area is clear-cut, select X" for the FW column.
WT WC FW (if applicable)
CA CA CA >_ 500 acres
CB CB CB From 100 to < 500 acres
CC CC CC From 50 to < 100 acres
CD CD C D From 25 to < 50 acres
C E C E C E From 10 to < 25 acres
C F C F C F From 5 to < 10 acres
C G C G C G From 1 to < 5 acres
C H C H C H From 0.5 to < 1 acre
C I C I C I From 0.1 to < 0.5 acre
CJ CJ CJ From 0.01 to < 0.1 acre
,r•'. K *] K K < 0.01 acre or assessment area is clear-cut
12. Wetland Intactness — wetland type condition metric (evaluate for Pocosins only)
"A Pocosin is the full extent (>_ 90%) of its natural landscape size.
LIB 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 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 Loosely
[:A [:A >_ 500 acres
E B E B From 100 to < 500 acres
CC E C From 50 to < 100 acres
CD E D From 10 to < 50 acres
C E C E < 10 acres
F�F CF Wetland type has a poor or no connection to other natural habitats
13b. Evaluate for marshes only.
F, Yes F, No Wetland type has a surface hydrology connection to open waters/stream or tidal wetlands.
14. Edge Effect — wetland type condition metric (skip for all marshes and Estuarine Woody Wetland)
May involve a GIS effort with field adjustment. Estimate distance from wetland type boundary to artificial edges. Artificial edges include
non -forested areas >_ 40 feet wide such as fields, development, roads, regularly maintained utility line corridors and clear -cuts. Consider
the eight main points of the compass. Artificial edge occurs within 150 feet in how many directions? If the assessment area is clear-cut,
select option "C."
[:A 0
[:B 1 to
E;C 5to8
15. Vegetative Composition — assessment area condition metric (skip for all marshes and Pine Flat)
CA 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.
E B Vegetation is different from reference condition in species diversity or proportions, but still largely composed of native species
characteristic of the wetland type. This may include communities of weedy native species that develop after clearcutting or
clearing. It also includes communities with exotics present, but not dominant, over a large portion of the expected strata.
CC Vegetation severely altered from reference in composition, or expected species are unnaturally absent (planted stands of non -
characteristic species or at least one stratum inappropriately composed of a single species), or exotic species are dominant in
at least one stratum.
16. Vegetative Diversity — assessment area condition metric (evaluate for Non -tidal Freshwater Marsh only)
CA 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.
CC Vegetation is dominated by exotic species (>50% cover of exotics).

Wallace WWTF, WD
17. Vegetative Structure — assessment area/wetland type condition metric
17a. Is vegetation present?
E Yes L: 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.
L]A
> 25%
coverage of vegetation
L]B
< 25% coverage of vegetation
17c. Check a box in each
column for each stratum. Evaluate this portion of the metric for non -marsh wetlands. Consider structure
in airspace
above the assessment area (AA) and the wetland type (WT) separately.
AA
WT
oL]A
L]A
Canopy closed, or nearly closed, with natural gaps associated with natural processes
m
L]B
L]B
Canopy present, but opened more than natural gaps
v
E;C
E;C
Canopy sparse or absent
o
L]A
L]A
Dense mid-story/sapling layer
cn
L�B
L�B
Moderate density mid-story/sapling layer
C
E; C
Mid-story/sapling layer sparse or absent
L]A
L]A
Dense shrub layer
L
L]B
L]B
Moderate density shrub layer
0
E;C
E;C
Shrub layer sparse or absent
E;A
E;A
Dense herb layer
L]B
L]B
Moderate density herb layer
C
L]C
Herb layer sparse or absent
18. Snags — wetland type condition metric (skip for all marshes)
[]A Large snags (more than one) are visible (> 12-inches DBH, or large relative to species present and landscape stability).
E;B Not
19. Diameter Class Distribution — wetland type condition metric (skip for all marshes)
L]A Majority of canopy trees have stems > 6 inches in diameter at breast height (DBH); many large trees (> 12 inches DBH) are
present.
L]B Majority of canopy trees have stems between 6 and 12 inches DBH, few are > 12-inch DBH.
C Majority of canopy trees are < 6 inches DBH or no trees.
20. Large Woody Debris — wetland type condition metric (skip for all marshes)
Include both natural debris and man -placed natural debris.
[]A Large logs (more than one) are visible (> 12 inches in diameter, or large relative to species present and landscape stability).
E;B Not
21. Vegetation/Open Water Dispersion — wetland type/open water condition metric (evaluate for Non -Tidal Freshwater
Marsh only)
Select the figure that best describes the amount of interspersion between vegetation
and open water in the growing season. Patterned
areas indicate vegetated areas, while solid white areas indicate open water.
L]A L]B L]C
L]D
22. Hydrologic Connectivity — assessment area condition metric (evaluate for riparian wetlands and Salt/Brackish Marsh only)
Examples of activities that may severely alter hydrologic connectivity include intensive ditching, fill, sedimentation, channelization,
diversion, man-made berms, beaver dams, and stream incision. Documentation required if evaluated as B, C, or D.
E;A Overbank and overland flow are not severely altered in the assessment area.
L]B Overbank flow is severely altered in the assessment area.
L]C Overland flow is severely altered in the assessment area.
L]D Both overbank and overland flow are severely altered in the assessment area.
Notes

Wallace WWTF, WD
NC WAM Wetland Rating Sheet
Accompanies User Manual
Version 5.0
Wetland Site Name WD
Date
2023-06-30
Wetland Type Bottomland Hardwood Forest
Assessor Name/Organization
Cooper & Heather Smith
Notes on Field Assessment Form (Y/N)
NO
Presence of regulatory considerations (Y/N)
YES
Wetland is intensively managed (Y/N)
YES
Assessment area is located within 50 feet of a natural tributary or other open
water (Y/N)
YES
Assessment area is substantially altered by beaver (Y/N)
NO
Assessment area experiences overbank flooding during normal rainfall conditions (Y/N)
NO
Assessment area is on a coastal island (Y/N)
NO
Sub -function Rating Summary
Function Sub -function
Metrics
Rating
Hydrology Surface Storage and Retention
Condition
LOW
Sub -Surface Storage and Retention
Condition
MEDIUM
Water Quality Pathogen Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Particulate Change
Condition
LOW
Condition/Opportunity
LOW
Opportunity Presence? (Y/N)
YES
Soluble Change
Condition
MEDIUM
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Physical Change
Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Pollution Change
Condition
NA
Condition/Opportunity
NA
Opportunity Presence? (Y/N)
NA
Habitat Physical Structure
Condition
LOW
Landscape Patch Structure
Condition
LOW
Vegetation Composition
Condition
MEDIUM
Function Rating Summary
Function Metrics/Notes
Rating
Hydrology Condition
LOW
Water Quality Condition
HIGH
Condition/Opportunity
HIGH
Opportunity Presence? (Y/N)
YES
Habitat Condition
LOW
Overall Wetland Rating LOW

Wallace WWTF, STREAM A
ies user manuai version c.-i
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic
quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same
property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User
Manual for detailed descriptions and explanations of requested information. Record in the "Notes/Sketch" section if any 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): Wallace WWTF Flood Protection 2. Date of evaluation: 2023-06-27
3. Applicant/owner name: Highfill, Infrastructure Engineering, P.C. 4. Assessor name/organization: David Cooper & Miguel Ortiz / VHB
5. County: Duplin 6. Nearest named water body
7. River Basin: Cape Fear on USGS 7.5-minute quad: Little Rockfish Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): (34.731879,-77.982116)
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SA 10. Length of assessment reach evaluated (feet): 246
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 5 r- Unable to assess channel depth.
12. Channel width at top of bank (feet): 15 13. Is assessment reach a swamp stream? [,Yes F, No
14. Feature type: [, Perennial flow F;Intermittent flow [-,Tidal Marsh Stream
STREAM RATING INFORMATION:
15. NC SAM Zone: [,Mountains (M) [,Piedmont (P) Inner Coastal Plain (1) [;Outer Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for F,a ��� [;b
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip [,Size 1 (< 0.1 mi`) F, Size 2 (0.1 to < 0.5 mi`) [ Size 3 (0.5 to < 5 mi`) [;Size 4 (? 5 mi)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? FYes [-,No If Yes, check all that appy to the assessment area.
r Section 10 water F Classified Trout Waters f- Water Supply Watershed ( [-,I [;II [,III [;IV [-,V)
i- Essential Fish Habitat i- Primary Nursery Area i- High Quality Waters/Outstanding Resource Waters
f✓ Publicly owned property I NCDWR riparian buffer rule in effect i- Nutrient Sensitive Waters
j- Anadromous fish F 303(d) List F CAMA Area of Environmental Concern (AEC)
i- Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
j- Designated Critical Habitat (list species):
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? [+ Yes r-, 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 adversely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or penciled water or impounded on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates).
�B Not
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
5. Signs of Active Instability - assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
A < 10% of channel unstable
B 10 to 25% of channel unstable
C > 25% of channel unstable
6. Streamside Area Interaction - streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
�A [;A Little or no evidence of conditions that adversely affect reference interaction
[ B B Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area,
leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
[�C [;C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision,
disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples:
impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a
man-made feature on an interstream divide
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)

Wallace WWTF, STREAM A
F_ C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
f- D Odor (not including natural sulfide odors)
i- E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in the "Notes/Sketch"
section.
i- F Livestock with access to stream or intertidal zone
F G Excessive algae in stream or intertidal zone
r H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
r 1 Other: (explain in "Notes/Sketch" section)
r J Little to no stressors
Recent Weather -watershed metric
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.
C A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
h B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
r C No drought conditions
9 Large or Dangerous Stream - assessment reach metric
Yes ro No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types - assessment reach metric
10a. r. Yes (-,No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
F A Multiple aquatic macrophytes and aquatic mosses N r- F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F_ m r G Submerged aquatic vegetation
r B Multiple sticks and/or leaf packs and/or emergent o � r H Low -tide refugia (pools)
vegetation �c L o i- I Sand bottom
r C Multiple snags and logs (including lap trees) L m r J 5% vertical bank along the marsh
F D 5% undercut banks and/or root mats and/or roots O r K Little or no habitat
in banks extend to the normal wetted perimeter
r E Little or no habitat
** -*****,»,»...*REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. r` 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).
r A Riffle -run section (evaluate 11c)
f- B Pool -glide section (evaluate 11d)
F- C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffles 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
E;
(;
Bedrock/saprolite
Boulder (256 -4096 mm)
Cobble (64 - 256 mm)
Gravel (2 - 64 mm)
Sand (.062 - 2 mm)
Silt/clay (< 0.062 mm)
Detritus
Artificial (rip -rap, concrete, etc.)
11d. [,Yes [;No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12. Aquatic Life - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12a. Co- 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. CT 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.
F r Adult frogs
r r Aquatic reptiles
F r Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
r r Beetles (including water pennies)
r r Caddisfly larvae (Trichoptera [T])
F r Asian clam (Corbicula )
r r Crustacean (isopod/amphipod/crayfish/shrimp)
F r Damselfly and dragonfly larvae
F r Dipterans (true flies)
r f- Mayfly larvae (Ephemeroptera [E])
r r Megaloptera (alderfly, fishfly, dobsonfly larvae)
r r Midges/mosquito larvae
r r Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
I- r Mussels/Clams (not Corbicula )
1- Other fish
r r Salamanders/tadpoles
r r- Snails
r F- Stonefly larvae (Plecoptera [P])
F_ F_ Tipulid larvae

Wallace WWTF, STREAM A
F F Worms/leeches
13. Streamside Area Ground Surface Condition - streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and
upland runoff.
LB
RB
A
A
Little or no alteration to water storage capacity over a majority of the streamside area
B
; B
Moderate alteration to water storage capacity over a majority of the streamside area
C
; C
Severe alteration to water storage capacity over a majority of the streamside area (examples include: ditches, fill,
soil, compaction, livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage - streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
�A A Majority of streamside area with depressions able to pond water> 6 inches deep
B E; 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.
r A Streams and/or springs (jurisdictional discharges)
r B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
r C Obstruction that passes some flow during low -flow periods within assessment area (beaver dam, bottom -release dam)
r D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
r E Stream bed or bank soil reduced (dig through deposited sediment if present)
r 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)
r B Obstruction not passing flow during low flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
r C Urban stream (>_ 24% impervious surface for watershed)
P D Evidence that the stream -side area has been modified resulting in accelerated drainage into the assessment reach
r E Assessment reach relocated to valley edge
r 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 stream category (may include gaps associated with natural processes)
�B Degraded (example: scattered trees)
�C Stream shading is gone or largely absent
19. Buffer Width - streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top
of bank out to the first break.
Vegetated Wooded
LB RB LB RB
A
A
A A >- 100-feet wide or extends to the edge of the watershed
B
; B
B B From 50 to < 100-feet wide
C
; C
C C From 30 to < 50-feet wide
D
; D;
D D From 10 to < 30-feet wide
E
; E;
E E < 10-feet wide or no trees
20. Buffer Structure - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB
RB
�A
A
Mature forest
B
B
Non -mature woody vegetation or modified vegetation structure
�C
C
Herbaceous vegetation with or without a strip of trees < 10 feet wide
�D
D
Maintained shrubs
E
E
Little or no vegetation
21. Buffer Stressors - streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but
is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22: r
Abuts < 30 feet 30-50 feet
LB
RB
LB RB LB RB
A
[;A A [;A A Row crops
[�B
B
B B B B Maintained turf
[;C
C
[;C C [;C C Pasture (no livestock)/commercial horticulture
[;D
D
; D D [;D D Pasture (active livestock use)
22. Stem
Density - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB
RB
+�A
�A
Medium to high stem density
B
B
Low stem density
�C
C
No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer- streamside area metric (skip for Tidal Marsh Streams)

Wallace WWTF, STREAM A
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10-feet wide.
LB RB
�A A The total length of buffer breaks is < 25 percent.
B B The total length of buffer breaks is between 25 and 50 percent.
[;C [;C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition - 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 B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity - assessment reach metric (skip for all Coastal Plain streams)
25a. ,Yes [,No Was a 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 r-, C 67 to < 79 r-, D 79 to < 230 r-, E >- 230

Wallace WWTF, STREAM A
NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Wallace WWTF Flood Protection
Stream Category lag
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)
Function Class Rating Summary
Date of Evaluation 2023-06-27
Assessor Name/Organization id Cooper & Miguel Ortiz /
NO
NO
YES
Intermittent
USACE/ NCDWR
All Streams Intermittent
(1) Hydrology
(2) Baseflow
(2) Flood Flow
(3) Streamside Area Attenuation
(4) Floodplain Access
(4) Wooded Riparian Buffer
(4) Microtopography
(3) Stream Stability
(4) Channel Stability
(4) Sediment Transport
(4) Stream Geomorphology
(2) Stream/Intertidal Zone Interaction
(2) Longitudinal Tidal Flow
(2) Tidal Marsh Stream Stability
(3) Tidal Marsh Channel Stability
(3) Tidal Marsh Stream Geomorphology
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
LOW
MEDIUM
HIGH
LOW
MEDIUM
NA
NA
NA
NA
NA
HIGH
MEDIUM
HIGH
HIGH
HIGH
HIGH
LOW
MEDIUM
HIGH
LOW
MEDIUM
NA
NA
NA
NA
NA
(1) Water Quality
(2) Baseflow
(2) Streamside Area Vegetation
(3) Upland Pollutant Filtration
(3) Thermoregulation
(2)Indicators of Stressors
(2) Aquatic Life Tolerance
(2) Intertidal Zone Filtration
HIGH
HIGH
HIGH
HIGH
HIGH
NO
MEDIUM
NA
MEDIUM
MEDIUM
HIGH
HIGH
HIGH
NO
NA
NA
(1) Habitat
(2) In -stream Habitat
(3) Baseflow
(3) Substrate
(3) Stream Stability
(3) In -stream Habitat
(2) Stream -side Habitat
(3) Stream -side Habitat
(3) Thermoregulation
(2) Tidal Marsh In -stream Habitat
(3) Flow Restriction
(3) Tidal Marsh Stream Stability
(4) Tidal Marsh Channel Stability
(4) Tidal Marsh Stream Geomorphology
(3) Tidal Marsh In -stream Habitat
(2) Intertidal Zone Habitat
HIGH
MEDIUM
HIGH
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
NA
NA
NA
NA
NA
NA
NA
HIGH
MEDIUM
MEDIUM
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
NA
NA
NA
NA
NA
NA
NA
Overall
HIGH
HIGH

Wallace WWTF, STREAM B
ies user manuai version c.-i
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic
quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same
property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User
Manual for detailed descriptions and explanations of requested information. Record in the "Notes/Sketch" section if any 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): Wallace WWTF Flood Protection 2. Date of evaluation: 2023-06-27
3. Applicant/owner name: Highfill, Infrastructure Engineering, P.C. 4. Assessor name/organization: David Cooper & Miguel Ortiz / VHB
5. County: Duplin 6. Nearest named water body
7. River Basin: Cape Fear on USGS 7.5-minute quad: Little Rockfish Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): (34.730208,-77.982008)
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SB 10. Length of assessment reach evaluated (feet): 243
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 5 r- Unable to assess channel depth.
12. Channel width at top of bank (feet): 10 13. Is assessment reach a swamp stream? [,Yes F, No
14. Feature type: F;Perennial flow [, Intermittent flow [-,Tidal Marsh Stream
STREAM RATING INFORMATION:
15. NC SAM Zone: [,Mountains (M) [,Piedmont (P) Inner Coastal Plain (1) [;Outer Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for F,a ��� [;b
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip [,Size 1 (< 0.1 mi`) F, Size 2 (0.1 to < 0.5 mi`) [ Size 3 (0.5 to < 5 mi`) [;Size 4 (? 5 mi)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? FYes [-,No If Yes, check all that appy to the assessment area.
r Section 10 water r Classified Trout Waters r Water Supply Watershed ( [-,I [;II [,III [;IV [-,V)
r Essential Fish Habitat r Primary Nursery Area r High Quality Waters/Outstanding Resource Waters
I✓ Publicly owned property r NCDWR riparian buffer rule in effect r Nutrient Sensitive Waters
r Anadromous fish F 303(d) List F CAMA Area of Environmental Concern (AEC)
r Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
r Designated Critical Habitat (list species):
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? [+ Yes r-, 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 adversely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or penciled water or impounded on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates).
�B Not
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
5. Signs of Active Instability - assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
A < 10% of channel unstable
B 10 to 25% of channel unstable
C > 25% of channel unstable
6. Streamside Area Interaction - streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
[�A A Little or no evidence of conditions that adversely affect reference interaction
B [; B Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area,
leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
[�C [;C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision,
disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples:
impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a
man-made feature on an interstream divide
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)

Wallace WWTF, STREAM B
F_ C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
f- D Odor (not including natural sulfide odors)
i- E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in the "Notes/Sketch"
section.
i- F Livestock with access to stream or intertidal zone
F G Excessive algae in stream or intertidal zone
r H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
r 1 Other: (explain in "Notes/Sketch" section)
r J Little to no stressors
Recent Weather -watershed metric
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.
C A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
h B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
r C No drought conditions
9 Large or Dangerous Stream - assessment reach metric
Yes ro No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types - assessment reach metric
10a. r. Yes (-,No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
F A Multiple aquatic macrophytes and aquatic mosses N r- F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F_ m r G Submerged aquatic vegetation
r B Multiple sticks and/or leaf packs and/or emergent o � r H Low -tide refugia (pools)
vegetation �c L o i- I Sand bottom
r C Multiple snags and logs (including lap trees) L m r J 5% vertical bank along the marsh
F D 5% undercut banks and/or root mats and/or roots O r K Little or no habitat
in banks extend to the normal wetted perimeter
r E Little or no habitat
** -*****,»,»...*REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. r` 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).
r A Riffle -run section (evaluate 11c)
f- B Pool -glide section (evaluate 11d)
F- C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffles 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
E;
(;
Bedrock/saprolite
Boulder (256 -4096 mm)
Cobble (64 - 256 mm)
Gravel (2 - 64 mm)
Sand (.062 - 2 mm)
Silt/clay (< 0.062 mm)
Detritus
Artificial (rip -rap, concrete, etc.)
11d. [,Yes [;No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12. Aquatic Life - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12a. Co- 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. CT 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.
r r Adult frogs
I- Aquatic reptiles
F r Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
r r Beetles (including water pennies)
r r Caddisfly larvae (Trichoptera [T])
F r Asian clam (Corbicula )
r r Crustacean (isopod/amphipod/crayfish/shrimp)
F r Damselfly and dragonfly larvae
F r Dipterans (true flies)
r f- Mayfly larvae (Ephemeroptera [E])
F_ r Megaloptera (alderfly, fishfly, dobsonfly larvae)
r r Midges/mosquito larvae
r r Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
r r Mussels/Clams (not Corbicula )
r r Other fish
r r Salamanders/tadpoles
177, r- Snails
r- r- larvae (Plecoptera [P])
F_ F_ Tipulid larvae

Wallace WWTF, STREAM B
F F Worms/leeches
13. Streamside Area Ground Surface Condition - streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and
upland runoff.
LB RB
A A Little or no alteration to water storage capacity over a majority of the streamside area
B ; B Moderate alteration to water storage capacity over a majority of the streamside area
C ; C Severe alteration to water storage capacity over a majority of the streamside area (examples include: ditches, fill,
soil, compaction, livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage - streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
�A A Majority of streamside area with depressions able to pond water> 6 inches deep
B E; B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
�C C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence - streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the
normal wetted perimeter of assessment reach.
LB RB
Y;Y Are wetlands present in the streamside area?
N N
16. Baseflow Contributors - assessment reach metric (skip for size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
A Streams and/or springs (jurisdictional discharges)
B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
C Obstruction that passes some flow during low -flow periods within assessment area (beaver dam, bottom -release dam)
D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
r 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)
r B Obstruction not passing flow during low flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
r C Urban stream (>_ 24% impervious surface for watershed)
P D Evidence that the stream -side area has been modified resulting in accelerated drainage into the assessment reach
r E Assessment reach relocated to valley edge
r 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 stream category (may include gaps associated with natural processes)
�B Degraded (example: scattered trees)
�C Stream shading is gone or largely absent
19. Buffer Width - streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top
of bank out to the first break.
Vegetated Wooded
LB RB LB RB
A A A E ;A >- 100-feet wide or extends to the edge of the watershed
B ; B B B From 50 to < 100-feet wide
C ; C C C From 30 to < 50-feet wide
D ; D+, D D From 10 to < 30-feet wide
E ; E; E E < 10-feet wide or no trees
20. Buffer Structure - streamside area metric (skip for Tidal Marsh Streams)
Consider for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB RB
�A A Mature forest
B B Non -mature woody vegetation or modified vegetation structure
�C C Herbaceous vegetation with or without a strip of trees < 10 feet wide
�D D Maintained shrubs
E E Little or no vegetation
21. Buffer Stressors - streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but
is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22: r
Abuts < 30 feet 30-50 feet
LB
RB
LB RB LB RB
A
[;A A [;A A Row crops
[�B
B
B B B B Maintained turf
[;C
C
[;C C [;C C Pasture (no livestock)/commercial horticulture
[;D
D
; D D [;D D Pasture (active livestock use)
22. Stem
Density - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB
RB
+�A
�A
Medium to high stem density
B
B
Low stem density
�C
C
No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer- streamside area metric (skip for Tidal Marsh Streams)

Wallace WWTF, STREAM B
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10-feet wide.
LB RB
�A A The total length of buffer breaks is < 25 percent.
B B The total length of buffer breaks is between 25 and 50 percent.
[;C [;C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition - 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 B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity - assessment reach metric (skip for all Coastal Plain streams)
25a. ,Yes [,No Was a 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 r-, C 67 to < 79 r-, D 79 to < 230 r-, E >- 230

Wallace WWTF, STREAM B
NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Wallace WWTF Flood Protection
Stream Category lag
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)
Function Class Rating Summary
Date of Evaluation 2023-06-27
Assessor Name/Organization id Cooper & Miguel Ortiz /
NO
NO
YES
Perennial
USACE/ NCDWR
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 MEDIUM
(4) Microtopography LOW
(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
(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 MEDIUM
(2) Intertidal Zone Filtration NA
(1) Habitat HIGH
(2) In -stream Habitat MEDIUM
(3) Baseflow HIGH
(3) Substrate HIGH
(3) Stream Stability HIGH
(3) In -stream Habitat LOW
(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 Habitat NA
Overall HIGH

Wallace WWTF, STREAM C
ies user manuai version c.-i
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic
quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same
property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User
Manual for detailed descriptions and explanations of requested information. Record in the "Notes/Sketch" section if any 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): Wallace WWTF Flood Protection 2. Date of evaluation: 2023-06-27
3. Applicant/owner name: Highfill, Infrastructure Engineering, P.C. 4. Assessor name/organization: David Cooper & Miguel Ortiz / VHB
5. County: Duplin 6. Nearest named water body
7. River Basin: Cape Fear on USGS 7.5-minute quad: Little Rockfish Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): (34.730260,-77.982093)
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SC 10. Length of assessment reach evaluated (feet): 27
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 4 r- Unable to assess channel depth.
12. Channel width at top of bank (feet): 5 13. Is assessment reach a swamp stream? [,Yes F, No
14. Feature type: [, Perennial flow F;Intermittent flow [-,Tidal Marsh Stream
STREAM RATING INFORMATION:
15. NC SAM Zone: [,Mountains (M) [,Piedmont (P) Inner Coastal Plain (1) [;Outer Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for F,a ��� [;b
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip F Size 1 (< 0.1 mi`) [,Size 2 (0.1 to < 0.5 mi`) [ Size 3 (0.5 to < 5 mi`) [;Size 4 (? 5 mi)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? FYes [-,No If Yes, check all that appy to the assessment area.
r Section 10 water r Classified Trout Waters r Water Supply Watershed ( [-,I [;II [,III [;IV [-,V)
r Essential Fish Habitat r Primary Nursery Area r High Quality Waters/Outstanding Resource Waters
r Publicly owned property r NCDWR riparian buffer rule in effect r Nutrient Sensitive Waters
r Anadromous fish F 303(d) List F CAMA Area of Environmental Concern (AEC)
r Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
r Designated Critical Habitat (list species):
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? [+ Yes r-, 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 adversely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impounded on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates).
[�B Not
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
5. Signs of Active Instability - assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
A < 10% of channel unstable
B 10 to 25% of channel unstable
C > 25% of channel unstable
6. Streamside Area Interaction - streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
�A [;A Little or no evidence of conditions that adversely affect reference interaction
[ B B Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area,
leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
[�C [;C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision,
disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples:
impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a
man-made feature on an interstream divide
7. Water Quality Stressors - assessment reach/intertidal zone metric
Check all that apply.
r A Discolored water in stream or intertidal zone (milky white, blue, unnatural water discoloration, oil sheen, stream foam)
r B Excessive sedimentation (burying of stream features or intertidal zone)

Wallace WWTF, STREAM C
F_ C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
f- D Odor (not including natural sulfide odors)
r E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in the "Notes/Sketch"
section.
I- F Livestock with access to stream or intertidal zone
F G Excessive algae in stream or intertidal zone
r H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
r. 1 Other: Large amount of cobble and debris dumped in stream (explain in "Notes/Sketch" section)
F J Little to no stressors
Recent Weather -watershed metric
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.
C A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
h B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
r C No drought conditions
9 Large or Dangerous Stream - assessment reach metric
Yes ro No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types - assessment reach metric
10a. r. Yes (-,No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
F A Multiple aquatic macrophytes and aquatic mosses N r- F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F_ m r G Submerged aquatic vegetation
r B MWltiple sticks and/or leaf packs and/or emergent o � r H Low -tide refugia (pools)
vegetation �c L o i- I Sand bottom
r C MWltiple snags and logs (including lap trees) L m r J 5% vertical bank along the marsh
F D 5% undercut banks and/or root mats and/or roots V r K Little or no habitat
in banks extend to the normal wetted perimeter
F* E Little or no habitat
** -*****,»,»...*REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. r` 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).
r A Riffle -run section (evaluate 11c)
f- B Pool -glide section (evaluate 11d)
F- C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffles 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
E;
(;
Bedrock/saprolite
Boulder (256 -4096 mm)
Cobble (64 - 256 mm)
Gravel (2 - 64 mm)
Sand (.062 - 2 mm)
Silt/clay (< 0.062 mm)
Detritus
Artificial (rip -rap, concrete, etc.)
11d. [,Yes [;No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12. Aquatic Life - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12a. Co- 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. CT 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.
r r Adult frogs
i- Aquatic reptiles
F r Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
F r Beetles (including water pennies)
F r Caddisfly larvae (Trichoptera [T])
F r Asian clam (Corbicula )
r r Crustacean (isopod/amphipod/crayfish/shrimp)
F r Damselfly and dragonfly larvae
F r Dipterans (true flies)
r f- Mayfly larvae (Ephemeroptera [E])
F_ r Megaloptera (alderfly, fishfly, dobsonfly larvae)
r r Midges/mosquito larvae
r r Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
r r Mussels/Clams (not Corbicula )
r r Other fish
r r Salamanders/tadpoles
177, r- Snails
t- r- larvae (Plecoptera [P])
F_ F_ Tipulid larvae

Wallace WWTF. STREAM C
F F Worms/leeches
13. Streamside Area Ground Surface Condition - streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and
upland runoff.
LB
RB
A
A
Little or no alteration to water storage capacity over a majority of the streamside area
B
B
Moderate alteration to water storage capacity over a majority of the streamside area
C
; C
Severe alteration to water storage capacity over a majority of the streamside area (examples include: ditches, fill,
soil, compaction, livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage - streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
�A A Majority of streamside area with depressions able to pond water> 6 inches deep
B E; 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.
r A Streams and/or springs (jurisdictional discharges)
r B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
r C Obstruction that passes some flow during low -flow periods within assessment area (beaver dam, bottom -release dam)
r D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
r E Stream bed or bank soil reduced (dig through deposited sediment if present)
r 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)
r B Obstruction not passing flow during low flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
r C Urban stream (>_ 24% impervious surface for watershed)
r D Evidence that the stream -side area has been modified resulting in accelerated drainage into the assessment reach
r E Assessment reach relocated to valley edge
r 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 stream category (may include gaps associated with natural processes)
�B Degraded (example: scattered trees)
�C Stream shading is gone or largely absent
19. Buffer Width - streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top
of bank out to the first break.
Vegetated Wooded
LB RB LB RB
A
;A
A A >- 100-feet wide or extends to the edge of the watershed
B
; B
B B From 50 to < 100-feet wide
C
C
C C From 30 to < 50-feet wide
D
; D;
D E ; D From 10 to < 30-feet wide
E
; E;
E E < 10-feet wide or no trees
20. Buffer Structure - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB
RB
�A
A
Mature forest
B
B
Non -mature woody vegetation or modified vegetation structure
�C
C
Herbaceous vegetation with or without a strip of trees < 10 feet wide
�D
D
Maintained shrubs
E
E
Little or no vegetation
21. Buffer Stressors - streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but
is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22: r
Abuts < 30 feet 30-50 feet
LB
RB
LB RB LB RB
A
A A A A Row crops
B
B
B B B B Maintained turf
C;C
C C C C Pasture (no livestock)/commercial horticulture
;D;D;D
D [;D D Pasture (active livestock use)
22. Stem
Density - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB
RB
+�A
[,A
Medium to high stem density
B
B
Low stem density
�C
C
No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer- streamside area metric (skip for Tidal Marsh Streams)

Wallace WWTF, STREAM C
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10-feet wide.
LB RB
�A A The total length of buffer breaks is < 25 percent.
B B The total length of buffer breaks is between 25 and 50 percent.
[;C [;C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition - 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 B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity - assessment reach metric (skip for all Coastal Plain streams)
25a. ,Yes [,No Was a 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 r-, C 67 to < 79 r-, D 79 to < 230 r-, E >- 230

Wallace WWTF, STREAM C
NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Wallace WWTF Flood Protection
Stream Category la1
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)
Function Class Rating Summary
Date of Evaluation 2023-06-27
Assessor Name/Organization id Cooper & Miguel Ortiz /
NO
YES
YES
Intermittent
USACE/ NCDWR
All Streams Intermittent
(1) Hydrology
(2) Baseflow
(2) Flood Flow
(3) Streamside Area Attenuation
(4) Floodplain Access
(4) Wooded Riparian Buffer
(4) Microtopography
(3) Stream Stability
(4) Channel Stability
(4) Sediment Transport
(4) Stream Geomorphology
(2) Stream/Intertidal Zone Interaction
(2) Longitudinal Tidal Flow
(2) Tidal Marsh Stream Stability
(3) Tidal Marsh Channel Stability
(3) Tidal Marsh Stream Geomorphology
HIGH
MEDIUM
HIGH
HIGH
HIGH
MEDIUM
MEDIUM
MEDIUM
HIGH
LOW
MEDIUM
NA
NA
NA
NA
NA
HIGH
MEDIUM
HIGH
HIGH
HIGH
MEDIUM
MEDIUM
MEDIUM
HIGH
LOW
MEDIUM
NA
NA
NA
NA
NA
(1) Water Quality
(2) Baseflow
(2) Streamside Area Vegetation
(3) Upland Pollutant Filtration
(3) Thermoregulation
(2)Indicators of Stressors
(2) Aquatic Life Tolerance
(2) Intertidal Zone Filtration
MEDIUM
MEDIUM
LOW
LOW
MEDIUM
NO
MEDIUM
NA
MEDIUM
MEDIUM
LOW
LOW
MEDIUM
NO
NA
NA
(1) Habitat
(2) In -stream Habitat
(3) Baseflow
(3) Substrate
(3) Stream Stability
(3) In -stream Habitat
(2) Stream -side Habitat
(3) Stream -side Habitat
(3) Thermoregulation
(2) Tidal Marsh In -stream Habitat
(3) Flow Restriction
(3) Tidal Marsh Stream Stability
(4) Tidal Marsh Channel Stability
(4) Tidal Marsh Stream Geomorphology
(3) Tidal Marsh In -stream Habitat
(2) Intertidal Zone Habitat
HIGH
MEDIUM
MEDIUM
HIGH
MEDIUM
LOW
HIGH
HIGH
MEDIUM
NA
NA
NA
NA
NA
NA
NA
HIGH
MEDIUM
MEDIUM
HIGH
MEDIUM
LOW
HIGH
HIGH
MEDIUM
NA
NA
NA
NA
NA
NA
NA
Overall
HIGH
HIGH

Wallace WWTF, STREAM D
ies user manuai version c.-i
INSTRUCTIONS: Attach a sketch of the assessment area and photographs. Attach a copy of the USGS 7.5-minute topographic
quadrangle, and circle the location of the stream reach under evaluation. If multiple stream reaches will be evaluated on the same
property, identify and number all reaches on the attached map, and include a separate form for each reach. See the NC SAM User
Manual for detailed descriptions and explanations of requested information. Record in the "Notes/Sketch" section if any 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): Wallace WWTF Flood Protection 2. Date of evaluation: 2023-06-30
3. Applicant/owner name: Highfill, Infrastructure Engineering, P.C. 4. Assessor name/organization: David Cooper & Heather Smith / VHB
5. County: Duplin 6. Nearest named water body
7. River Basin: Cape Fear on USGS 7.5-minute quad: Little Rockfish Creek
8. Site coordinates (decimal degrees, at lower end of assessment reach): (34.729373,-77.983498)
STREAM INFORMATION: (depth and width can be approximations)
9. Site number (show on attached map): SD 10. Length of assessment reach evaluated (feet): 143
11. Channel depth from bed (in riffle, if present) to top of bank (feet): 6 r- Unable to assess channel depth.
12. Channel width at top of bank (feet): 10 13. Is assessment reach a swamp stream? [,Yes F, No
14. Feature type: [, Perennial flow F;Intermittent flow [-,Tidal Marsh Stream
STREAM RATING INFORMATION:
15. NC SAM Zone: [,Mountains (M) [,Piedmont (P) Inner Coastal Plain (1) [;Outer Coastal Plain (0)
16. Estimated geomorphic
valley shape (skip for F,a ��� [;b
Tidal Marsh Stream): (more sinuous stream, flatter valley slope) (less sinuous stream, steeper valley slope)
17. Watershed size: (skip [,Size 1 (< 0.1 mi`) F, Size 2 (0.1 to < 0.5 mi`) [ Size 3 (0.5 to < 5 mi`) [;Size 4 (? 5 mi)
for Tidal Marsh Stream)
ADDITIONAL INFORMATION:
18. Were regulatory considerations evaluated? FYes [-,No If Yes, check all that appy to the assessment area.
r Section 10 water r Classified Trout Waters r Water Supply Watershed ( [-,I [;II [,III FIV [-,V)
r Essential Fish Habitat r Primary Nursery Area r High Quality Waters/Outstanding Resource Waters
[✓ Publicly owned property r NCDWR riparian buffer rule in effect r Nutrient Sensitive Waters
r Anadromous fish F 303(d) List F CAMA Area of Environmental Concern (AEC)
r Documented presence of a federal and/or state listed protected species within the assessment area.
List species:
r Designated Critical Habitat (list species):
19. Are additional stream information/supplementary measurements included in "Notes/Sketch" section or attached? [+ Yes r-, 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 adversely affected by a flow restriction or fill to the
point of obstructing flow or a channel choked with aquatic macrophytes or ponded water or impounded on flood or ebb within
the assessment reach (examples: undersized or perched culverts, causeways that constrict the channel, tidal gates).
�B Not
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
5. Signs of Active Instability - assessment reach metric
Consider only current instability, not past events from which the stream has currently recovered. Examples of instability include
active bank failure, active channel down -cutting (head -cut), active widening, and artificial hardening (such as concrete, gabion, rip -rap).
A < 10% of channel unstable
B 10 to 25% of channel unstable
C > 25% of channel unstable
6. Streamside Area Interaction - streamside area metric
Consider for the Left Bank (LB) and the Right Bank (RB).
LB RB
�A A Little or no evidence of conditions that adversely affect reference interaction
[ B [; B Moderate evidence of conditions (examples: berms, levees, down -cutting, aggradation, dredging) that adversely affect
reference interaction (examples: limited streamside area access, disruption of flood flows through streamside area,
leaky or intermittent bulkheads, causeways with floodplain constriction, minor ditching [including mosquito ditching])
[�C [;C Extensive evidence of conditions that adversely affect reference interaction (little to no floodplain/intertidal zone access
[examples: causeways with floodplain and channel constriction, bulkheads, retaining walls, fill, stream incision,
disruption of flood flows through streamside area] or too much floodplain/intertidal zone access [examples:
impoundments, intensive mosquito ditching]) or floodplain/intertidal zone unnaturally absent or assessment reach is a
man-made feature on an interstream divide
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)

Wallace WWTF, STREAM D
F_ C Noticeable evidence of pollutant discharges entering the assessment reach and causing a water quality problem
r D Odor (not including natural sulfide odors)
j- E Current published or collected data indicating degraded water quality in the assessment reach. Cite source in the "Notes/Sketch"
section.
r F Livestock with access to stream or intertidal zone
F G Excessive algae in stream or intertidal zone
r H Degraded marsh vegetation in the intertidal zone (removal, burning, regular mowing, destruction, etc.)
r 1 Other: (explain in "Notes/Sketch" section)
r J Little to no stressors
Recent Weather -watershed metric
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.
C A Drought conditions and no rainfall or rainfall not exceeding 1 inch within the last 48 hours
h B Drought conditions and rainfall exceeding 1 inch within the last 48 hours
r C No drought conditions
9 Large or Dangerous Stream - assessment reach metric
Yes ro No Is stream is too large or dangerous to assess? If Yes, skip to Metric 13 (Streamside Area Ground Surface Condition).
10. Natural In -stream Habitat Types - assessment reach metric
10a. r" Yes F," No Degraded in -stream habitat over majority of the assessment reach (examples of stressors include excessive
sedimentation, mining, excavation, in -stream hardening [for example, rip -rap], recent dredging, and snagging)
(evaluate for size 4 Coastal Plain streams only, then skip to Metric 12)
10b. Check all that occur (occurs if > 5% coverage of assessment reach) (skip for Size 4 Coastal Plain streams)
F A Multiple aquatic macrophytes and aquatic mosses N r- F 5% oysters or other natural hard bottoms
(include liverworts, lichens, and algal mats) F_ m r G Submerged aquatic vegetation
r B Multiple sticks and/or leaf packs and/or emergent o � r H Low -tide refugia (pools)
vegetation �c L o r I Sand bottom
r C Multiple snags and logs (including lap trees) L m r J 5% vertical bank along the marsh
F D 5% undercut banks and/or root mats and/or roots O r K Little or no habitat
in banks extend to the normal wetted perimeter
r E Little or no habitat
** -*****,»,»...*REMAINING QUESTIONS ARE NOT APPLICABLE FOR TIDAL MARSH STREAMS****************************
11. Bedform and Substrate - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
11 a. r` 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).
r A Riffle -run section (evaluate 11c)
f- B Pool -glide section (evaluate 11d)
F- C Natural bedform absent (skip to Metric 12, Aquatic Life)
11 c. In riffles 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
E;
(;
Bedrock/saprolite
Boulder (256 -4096 mm)
Cobble (64 - 256 mm)
Gravel (2 - 64 mm)
Sand (.062 - 2 mm)
Silt/clay (< 0.062 mm)
Detritus
Artificial (rip -rap, concrete, etc.)
11d. [,Yes [;No Are pools filled with sediment? (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12. Aquatic Life - assessment reach metric (skip for Size 4 Coastal Plain streams and Tidal Marsh Streams)
12a. Co- 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. CT 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.
r r Adult frogs
I- Aquatic reptiles
F r Aquatic macrophytes and aquatic mosses (include liverworts, lichens, and algal mats)
F r Beetles (including water pennies)
F r Caddisfly larvae (Trichoptera [T])
F j- Asian clam (Corbicula )
r r Crustacean (isopod/amphipod/crayfish/shrimp)
F r Damselfly and dragonfly larvae
F r Dipterans (true flies)
r r Mayfly larvae (Ephemeroptera [E])
r r Megaloptera (alderfly, fishfly, dobsonfly larvae)
r r Midges/mosquito larvae
r r Mosquito fish (Gambusia) or mud minnows (Umbra pygmaea)
(- j- Mussels/Clams (not Corbicula )
r r Other fish
r i- Salamanders/tadpoles
r r- Snails
r F- Stonefly larvae (Plecoptera [P])
F_ F_ Tipulid larvae

Wallace WWTF. STREAM D
F F Worms/leeches
13. Streamside Area Ground Surface Condition - streamside area metric (skip for Tidal Marsh Streams and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB). Consider storage capacity with regard to both overbank flow and
upland runoff.
LB
RB
A
A
Little or no alteration to water storage capacity over a majority of the streamside area
B
; B
Moderate alteration to water storage capacity over a majority of the streamside area
C
; C
Severe alteration to water storage capacity over a majority of the streamside area (examples include: ditches, fill,
soil, compaction, livestock disturbance, buildings, man-made levees, drainage pipes)
14. Streamside Area Water Storage - streamside area metric (skip for Size 1 streams, Tidal Marsh Streams, and B valley types)
Consider for the Left Bank (LB) and the Right Bank (RB) of the streamside area.
LB RB
�A A Majority of streamside area with depressions able to pond water>-- 6 inches deep
B B Majority of streamside area with depressions able to pond water 3 to 6 inches deep
�C C Majority of streamside area with depressions able to pond water < 3 inches deep
15. Wetland Presence - streamside area metric (skip for Tidal Marsh Streams)
Consider for the Left Bank (LB) and the Right Bank (RB). Do not consider wetlands outside of the streamside area or within the
normal wetted perimeter of assessment reach.
LB RB
Y Y Are wetlands present in the streamside area?
N N
16. Baseflow Contributors - assessment reach metric (skip for size 4 streams and Tidal Marsh Streams)
Check all contributors within the assessment reach or within view of and draining to the assessment reach.
r A Streams and/or springs (jurisdictional discharges)
r B Ponds (include wet detention basins; do not include sediment basins or dry detention basins)
r C Obstruction that passes some flow during low -flow periods within assessment area (beaver dam, bottom -release dam)
r D Evidence of bank seepage or sweating (iron oxidizing bacteria in water indicates seepage)
r E Stream bed or bank soil reduced (dig through deposited sediment if present)
r 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)
r B Obstruction not passing flow during low flow periods affecting the assessment reach (ex: watertight dam, sediment deposit)
r C Urban stream (>> 24 % impervious surface for watershed)
r D Evidence that the stream -side area has been modified resulting in accelerated drainage into the assessment reach
r E Assessment reach relocated to valley edge
r 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 stream category (may include gaps associated with natural processes)
�B Degraded (example: scattered trees)
�C Stream shading is gone or largely absent
19. Buffer Width - streamside area metric (skip for Tidal Marsh Streams)
Consider "vegetated buffer" and "wooded buffer" separately for left bank (LB) and right bank (RB) starting at the top
of bank out to the first break.
Vegetated Wooded
LB RB LB RB
A
A
A E ;A >- 100-feet wide or extends to the edge of the watershed
B
; B
B B From 50 to < 100-feet wide
C
; C
C C From 30 to < 50-feet wide
D
; D;
D D From 10 to < 30-feet wide
E
; E;
E E < 10-feet wide or no trees
20. Buffer Structure - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Vegetated" Buffer Width).
LB
RB
�A
A
Mature forest
B
B
Non -mature woody vegetation or modified vegetation structure
�C
C
Herbaceous vegetation with or without a strip of trees < 10 feet wide
�D
D
Maintained shrubs
E
E
Little or no vegetation
21. Buffer Stressors - streamside area metric (skip for Tidal Marsh Streams)
Check all appropriate boxes for left bank (LB) and right bank (RB). Indicate if listed stressor abuts stream (Abuts), does not abut but
is within 30 feet of stream (< 30 feet), or is between 30 to 50 feet of stream (30-50 feet).
If none of the following stressors occurs on either bank, check here and skip to Metric 22: r
Abuts < 30 feet 30-50 feet
LB
RB
LB RB LB RB
A
[;A A [;A A Row crops
[�B
B
B B B B Maintained turf
[;C
C
[;C C [;C C Pasture (no livestock)/commercial horticulture
[;D
D
; D D [;D D Pasture (active livestock use)
22. Stem
Density - streamside area metric (skip for Tidal Marsh Streams)
Consider
for left bank (LB) and right bank (RB) for Metric 19 ("Wooded" Buffer Width).
LB
RB
+�A
�A
Medium to high stem density
B
B
Low stem density
�C
C
No wooded riparian buffer or predominantly herbaceous species or bare ground
23. Continuity of Vegetated Buffer- streamside area metric (skip for Tidal Marsh Streams)

Wallace WWTF, STREAM D
Consider whether vegetated buffer is continuous along stream (parallel). Breaks are areas lacking vegetation > 10-feet wide.
LB RB
�A A The total length of buffer breaks is < 25 percent.
B B The total length of buffer breaks is between 25 and 50 percent.
[;C [;C The total length of buffer breaks is > 50 percent.
24. Vegetative Composition - 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 B Vegetation indicates disturbance in terms of species diversity or proportions, but is still largely composed of native
species. This may include communities of weedy native species that develop after clear -cutting or clearing or
communities with non-native invasive species present, but not dominant, over a large portion of the expected strata or
communities missing understory but retaining canopy trees.
C C Vegetation is severely disturbed in terms of species diversity or proportions. Mature canopy is absent or communities
with non-native invasive species dominant over a large portion of expected strata or communities composed of planted
stands of non -characteristic species or communities inappropriately composed of a single species or no vegetation.
25. Conductivity - assessment reach metric (skip for all Coastal Plain streams)
25a. ,Yes [,No Was a 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 r-, C 67 to < 79 r-, D 79 to < 230 r-, E >- 230

Wallace WWTF, STREAM D
NC SAM Stream Rating Sheet
Accompanies User Manual Version 2.1
Stream Site Name Wallace WWTF Flood Protection
Stream Category lag
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)
Function Class Rating Summary
Date of Evaluation 2023-06-30
Assessor Name/Organization 1 Cooper & Heather Smith /
NO
YES
YES
Intermittent
USACE/ NCDWR
All Streams Intermittent
(1) Hydrology
(2) Baseflow
(2) Flood Flow
(3) Streamside Area Attenuation
(4) Floodplain Access
(4) Wooded Riparian Buffer
(4) Microtopography
(3) Stream Stability
(4) Channel Stability
(4) Sediment Transport
(4) Stream Geomorphology
(2) Stream/Intertidal Zone Interaction
(2) Longitudinal Tidal Flow
(2) Tidal Marsh Stream Stability
(3) Tidal Marsh Channel Stability
(3) Tidal Marsh Stream Geomorphology
HIGH
MEDIUM
HIGH
HIGH
HIGH
HIGH
MEDIUM
HIGH
HIGH
LOW
HIGH
NA
NA
NA
NA
NA
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
MEDIUM
HIGH
HIGH
LOW
HIGH
NA
NA
NA
NA
NA
(1) Water Quality
(2) Baseflow
(2) Streamside Area Vegetation
(3) Upland Pollutant Filtration
(3) Thermoregulation
(2)Indicators of Stressors
(2) Aquatic Life Tolerance
(2) Intertidal Zone Filtration
MEDIUM
MEDIUM
HIGH
HIGH
HIGH
NO
LOW
NA
MEDIUM
HIGH
HIGH
HIGH
HIGH
NO
NA
NA
(1) Habitat
(2) In -stream Habitat
(3) Baseflow
(3) Substrate
(3) Stream Stability
(3) In -stream Habitat
(2) Stream -side Habitat
(3) Stream -side Habitat
(3) Thermoregulation
(2) Tidal Marsh In -stream Habitat
(3) Flow Restriction
(3) Tidal Marsh Stream Stability
(4) Tidal Marsh Channel Stability
(4) Tidal Marsh Stream Geomorphology
(3) Tidal Marsh In -stream Habitat
(2) Intertidal Zone Habitat
HIGH
MEDIUM
MEDIUM
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
NA
NA
NA
NA
NA
NA
NA
HIGH
MEDIUM
HIGH
HIGH
HIGH
LOW
HIGH
HIGH
HIGH
NA
NA
NA
NA
NA
NA
NA
Overall
HIGH
HIGH

Wallace WWTF, STREAM
FORM 1
NC Division of Water Quality - Methodology For Identification of Intermittent and
Perennial Streams and Their OrEins v. 4.11
NC DWO Stream Identification Form Version 4.11
Date: 6-27-23
Project: Wallace WWTF Flood Protection
Latitude: 34.731879 °N
Evaluator: David Cooper & Miguel Ortiz
County: Duplin
Longitude:-77.982116 °W
Total Points: 29.5
Stream is at least intermittent if 19 or perennial
if >_ 30'
Stream Determination (Circle one)
Intermittent
Other: Stream Form 1, SA
A. Geomorphology (Subtotal = 14)
Absent
Weak
Moderate
Strong
la. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
riffle -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
a artificial ditches are not rated; see discussions in manual
B. Hvdroloav (Subtotal = 8.5)
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
1 0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biologv (Subtotal = 7)
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FAC=0.5
FACW=0.75
OBL=1.5
SAV=2.0 I Other=0
'perennial streams may also be identified using other
methods. See p. 35 of manual.
Notes:
Sketch:

Wallace WWTF, STREAM
FORM 2
NC Division of Water Quality - Methodology For Identification of Intermittent and
Perennial Streams and Their Orgins v. 4.11
NC DWO Stream Identification Form Version 4.11
Date: 6-27-23
Project: Wallace WWTF Flood Protection
Latitude: 34.730208 °N
Evaluator: David Cooper & Miguel Ortiz
County: Duplin
Longitude:-77.982008 °W
Total Points: 32
Stream is at least intermittent if 19 or perennial
if >_ 30'
Stream Determination (Circle one)
Perennial
Other: Stream Form 2, SB
A. Geomorphology (Subtotal = 17)
Absent
Weak
Moderate
Strong
la. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
riffle -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
a artificial ditches are not rated; see discussions in manual
B. Hvdroloav (Subtotal = 7)
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
1 0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biologv (Subtotal = 8)
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FAC=0.5
FACW=0.75
OBL=1.5
SAV=2.0 I Other=0
perennial streams may also be identified using other
methods. See p. 35 of manual.
Notes: Stream contains large pieces cobble and debris.
Sketch:

Wallace WWTF, STREAM
FORM 3
NC Division of Water Quality - Methodology For Identification of Intermittent and
Perennial Streams and Their Orgins v. 4.11
NC DWQ Stream Identification Form Version 4.11
Date: 6-27-23
Project: Wallace WWTF Flood Protection
Latitude: 34.730260 °N
Evaluator: David Cooper & Miguel Ortiz
County: Duplin
Longitude:-77.982093 °W
Total Points: 21.5
Stream is at least intermittent if 19 or perennial
if >_ 30'
Stream Determination (Circle one)
Intermittent
Other: Stream Form 3, SC
A. Geomorphology (Subtotal = 8.5)
Absent
Weak
Moderate
Strong
la. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
riffle -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
a artificial ditches are not rated; see discussions in manual
B. Hydrology (Subtotal = 5.5)
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biology Subtotal = 7.5
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FAC=0.5
FACW=0.75
OBL=1.5
SAV=2.0 I Other=0
perennial streams may also be identified usingother
methods. See p. 35 of manual.
Notes: Stream contains large pieces cobble and debris.
Sketch:

Wallace WWTF, STREAM
FORM 4
NC Division of Water Quality - Methodology For Identification of Intermittent and
Perennial Streams and Their Orgins v. 4.11
NC DWQ Stream Identification Form Version 4.11
Date: 6-29-23
Project: Wallace WWTF Flood Protection
Latitude: 34.729373 °N
Evaluator: David Cooper & Miguel Ortiz
County: Duplin
Longitude:-77.983498 °W
Total Points: 29
Stream is at least intermittent if 19 or perennial
if >_ 30'
Stream Determination (Circle one)
Intermittent
Other: Stream Form 4, SD
A. Geomorphology (Subtotal = 11.5)
Absent
Weak
Moderate
Strong
la. Continuity of channel bed and bank
0
1
2
3
2. Sinuosity of channel along thalweg
0
1
2
3
3. In -channel structure: ex. riffle -pool, step -pool,
riffle -pool sequence
0
1
2
3
4. Particle size of stream substrate
0
1
2
3
5. Active/relict floodplain
0
1
2
3
6. Depositional bars or benches
0
1
2
3
7. Recent alluvial deposits
0
1
2
3
8. Headcuts
0
1
2
3
9. Grade control
0
0.5
1
1.5
10. Natural valley
0
0.5
1
1.5
11. Second or greater order channel
No = 0
Yes = 3
a artificial ditches are not rated; see discussions in manual
B. Hydrology (Subtotal = 11.5)
12. Presence of Baseflow
0
1
2
3
13. Iron oxidizing bacteria
0
1
2
3
14. Leaf litter
1.5
1
0.5
0
15. Sediment on plants or debris
0
0.5
1
1.5
16. Organic debris lines or piles
0
0.5
1
1.5
17. Soil -based evidence of high water table?
No = 0
Yes = 3
C. Biology Subtotal = 6
18. Fibrous roots in streambed
3
2
1
0
19. Rooted upland plants in streambed
3
2
1
0
20. Macrobenthos (note diversity and abundance)
0
1
2
3
21. Aquatic Mollusks
0
1
2
3
22. Fish
0
0.5
1
1.5
23. Crayfish
0
0.5
1
1.5
24. Amphibians
0
0.5
1
1.5
25. Algae
0
0.5
1
1.5
26. Wetland plants in streambed
FAC=0.5
FACW=0.75
OBL=1.5
SAV=2.0 I Other=0
perennial streams may also be identified usingother
methods. See p. 35 of manual.
Notes:
Sketch:

Wallace WWTF Flood Protection.
Duplin County, NC
Site Photographs - Taken June 27 & 30, 2023
Stream A, Intermittent looking upstream
Stream B, Perennial looking upstream
Stream C, Intermittent looking upstream
Wallace WWTF Flood Protection
Site Photographs
Stream A, Intermittent looking downstream
Stream B, Perennial looking downstream
Stream C, Intermittent looking downstream at Stream B
connection
Wallace WWTF
Page 1 of 2

Stream D, Intermittent looking upstream
Wetland A
;.�
1
.=
� gy�qpyp-� y
'^ 'W .
F
or
,d
Wetland C
Stream D, Intermittent looking downstream
Wetland B
Wetland D
Wallace WWTF Flood Protection Wallace WWTF
Site Photographs Page 2 of 2

Antecedent Precipitation vs Normal Range based on NOAA's Daily Global Historical Climatology Network
Daily Total
30-Day Rolling Total
0 30 Year Normal Range
A
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
2022
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
Coordinates
34.731005,-77.982862
Observation Date
2023-06-27
Elevation (ft)
30.821
Drought Index (PDSI)
Moderate drought (2023-05)
WebWIMP H2O Balance
Wet Season
Figure and tables made by the
Antecedent Precipitation Tool
Version 1.0
Written by Jason Deters
• U.S. Army Corps of Engineers
30 Days Ending
301%ile (in)
701%ile (in)
Observed (in)
Wetness Condition
Condition Value
Month Weight
Product
2023-06-27
4.939764
7.130709
8.885827
Wet
3
3
9
2023-05-28
2.848425
4.783071
4.153543
Normal
2
2
4
2023-04-28
1 2.304331
1 5.204725
4.767717
Normal
2
1 1
2
Result
I
I
I
Wetter than Normal - 15
Weather Station Name
Coordinates
Elevation (ft)
Distance (mi)
Elevation A
Weighted A
Days Normal
Days Antecedent
WALLACE 1SE
34.7314,-77.9831
35.105
0.03
4.284
0.014
7344
88
WALLACE 3.7 E
34.7416,-77.9329
33.136
2.936
1.969
1.327
38
0
WALLACE 6.2 ENE
34.7838,-77.9065
30.84
5.658
4.265
2.57
1
0
WILLARD 4 SW
34.6606,-78.0453
55.118
6.034
20.013
2.836
3550
0
ROSE HILL 0.1 NNW
34.8259,-78.0286
99.081
7.021
63.976
3.609
89
2
BURGAW 0.3 NE
34.554,-77.9229
40.026
12.726
4.921
5.789
4
0
HARRELLS 0.7 SE
34.7238,-78.1905
78.084
11.789
42.979
5.812
15
0
BURGAW 3W
34.5494,-77.9719
49.869
12.591
14.764
5.852
212
0
BURGAW 4 E
34.5322,-77.8639
33.136
15.341
1.969
6.934
33
0
MOORES CREEK NB
34.4581,-78.1094
21.982
20.203
13.123
9.356
2
0
WARSAW 5 E
35.0128,-78.0044
109.908
19.48
74.803
10.223
63
0
WILMINGTON 7 N
34.3208,-77.9206
40.026
28.592
4.921
13.007
2
0

Antecedent Precipitation vs Normal Range based on NOAA's Daily Global Historical Climatology Network
Daily Total
30-Day Rolling Total
0 30 Year Normal Range
2023-OS-01
f
20 3- -31
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
2022
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
2023
Coordinates
34.731005,-77.982862
Observation Date
2023-06-30
Elevation (ft)
30.821
Drought Index (PDSI)
Moderate drought (2023-05)
WebWIMP H2O Balance
Wet Season
Figure and tables made by the
Antecedent Precipitation Tool
Version 1.0
Written by Jason Deters
• U.S. Army Corps of Engineers
30 Days Ending
301%ile (in)
701%ile (in)
Observed (in)
Wetness Condition
Condition Value
Month Weight
Product
2023-06-30
4.166536
6.960236
7.586614
Wet
3
3
9
2023-05-31
2.691339
5.035433
4.106299
Normal
2
2
4
2023-05-01
1 2.817323
4.982677
6.114173
Wet
3
1 1
3
Result
I
I
Wetter than Normal - 16
Weather Station Name
Coordinates
Elevation (ft)
Distance (mi)
Elevation A
Weighted A
Days Normal
Days Antecedent
WALLACE 1SE
34.7314,-77.9831
35.105
0.03
4.284
0.014
7344
88
WALLACE 3.7 E
34.7416,-77.9329
33.136
2.936
1.969
1.327
38
0
WALLACE 6.2 ENE
34.7838,-77.9065
30.84
5.658
4.265
2.57
1
0
WILLARD 4 SW
34.6606,-78.0453
55.118
6.034
20.013
2.836
3550
0
ROSE HILL 0.1 NNW
34.8259,-78.0286
99.081
7.021
63.976
3.609
89
2
BURGAW 0.3 NE
34.554,-77.9229
40.026
12.726
4.921
5.789
4
0
HARRELLS 0.7 SE
34.7238,-78.1905
78.084
11.789
42.979
5.812
15
0
BURGAW 3W
34.5494,-77.9719
49.869
12.591
14.764
5.852
212
0
BURGAW 4 E
34.5322,-77.8639
33.136
15.341
1.969
6.934
33
0
MOORES CREEK NB
34.4581,-78.1094
21.982
20.203
13.123
9.356
2
0
WARSAW 5 E
35.0128,-78.0044
109.908
19.48
74.803
10.223
63
0
WILMINGTON 7 N
34.3208,-77.9206
40.026
28.592
4.921
13.007
2
0

AGENT AUTHORIZATION FORM
Project Name: Wallace Wastewater Treatment Plant
Project Location: Old Wilmington Rd., Wallace, Duplin County, NC
Date: May 2023
The undersigned does hereby authorize:
The Professional Engineers and Scientists VHB
of
(Contractor/ Agent)
(Name of consulting firm)
to act on the behalf of the Town of Wallace, NC and take all actions necessary for the identification,
verification, and permitting of impacts to potential aquatic resources. I understand that representatives
of the N.C. Division of Water Resources and/or U.S. Army Corps of Engineers may perform on -site
verification of these resources and grant permission for access for this purpose.
Rob Taylor, Town Manager
Town of Wallace, NC
851 Old Wilmington Rd.
Wallace, NC 28466
[phone]
[e-mail]
I hereby certify the above information submitted in this application is true and accurate to the
best of my knowledge.
Date