20170957 Ver 1_04_Appendix C_Wilmington_Seep Points_20170227

WETLAND DETERMINATION DATA FORM — Atlantic and Gulf Coastal Plain Region
Project/Site: Atlantic Coast Pipeline City/County: Halifax Sampling Date: 12/9/2015
Applicant/Owner: Dominion State: NC Sampling Point: phIf001
Investigator(s): SH, AS Section, Township, Range:
Landform (hillslope, terrace, etc.): Hillslope Local relief (concave, convex, none): concave Slope (oho): 5
Subregion (LRR or MLRA): Lat: 36.374178 Long: -77.600408 Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No ✓ (If no, explain in Remarks.)
Are Vegetation Soil or Hydrology significantly disturbed? Are "Normal Circumstances" present? Yes No
Are Vegetation Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes ✓ No Is the Sampled Area
Hydric Soil Present? Yes No ✓ ✓
within a Wetland? Yes No
Wetland Hydrology Present? Yes ✓ No
Remarks:
Seep point. Does not meet hydric soils requirement
HYDROLOGY
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
Primary Indicators (minimum of one is required; check all that apply)
_ Surface Soil Cracks (136)
Surface Water (Al) _
Aquatic Fauna (1313)
_ Sparsely Vegetated Concave Surface (138)
✓ High Water Table (A2) _
Marl Deposits (1315) (LRR U)
_ Drainage Patterns (1310)
✓ Saturation (A3) _
Hydrogen Sulfide Odor (Cl)
—Moss Trim Lines (B16)
Water Marks (B1) _
Oxidized Rhizospheres along Living Roots (C3)
_ Dry -Season Water Table (C2)
Sediment Deposits (62) _
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 (69)
_ Sphagnum moss (D8) (LRR T, U)
Field Observations:
Surface Water Present? Yes No
10' Depth (inches):
Water Table Present? Yes '� No
Depth (inches): 10
Saturation Present? Yes ✓ No
Depth (inches): 0
Wetland Hydrology Present? Yes No
includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring
well, aerial photos, previous inspections), if available:
Remarks:
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region – Version 2.0

VEGETATION (Four Strata) — Use scientific names of plants. Sampling Point:phlfool
Herb Stratum (Plot size:
Absolute
Dominant Indicator
Dominance Test worksheet:
Tree Stratum (Plot size: 30 )
% Cover
Species? Status
Number of Dominant Species
1 Ulmus americana
20
Yes
FAC
That Are OBL, FACW, or FAC: 6 (A)
2.
Tree —Woody plants, excluding vines, 3 in. (7.6 cm) or
4.
more in diameter at breast height (DBH), regardless of
5
height.
6•
Total Number of Dominant
3.
7.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
Species Across All Strata: 6 (B)
4.
Herb — All herbaceous (non -woody) plants, regardless
g,
of size, and woody plants less than 3.28 ft tall.
10.
Woody vine — All woody vines greater than 3.28 ft in
Percent of Dominant Species
5.
height.
That Are OBL, FACW, or FAC: 100 (A/B)
6.
Prevalence Index worksheet:
7.
Total % Cover of: Multiply by:
8
20
OBL species 0 x 1 = 0
= Total Cover
20 40
10
4
FACW species x 2 =
50% of total cover:
20% of
total cover:
75 225
Sapling/Shrub Stratum (Plot size: 15
)
FAC species x 3 =
1 Ligustrum sinense
20
Yes
FAC
FACU species 0 x 4 = 0
2 Liquidambar styraclflua
10
Yes
FAC
UPL species 0 x 5 = 0
Column Totals: 95 265
(A) (B)
3.
4.
Prevalence Index = B/A = 2.78
5.
Hydrophytic Vegetation Indicators:
6.
_ 1 - Rapid Test for Hydrophytic Vegetation
7•
2 - Dominance Test is >50%
8•
—
3 - Prevalence Index is 553.0'
30
= Total Cover
Problematic Hydrophytic Vegetation (Explain)
50% of total cover:
15 20% of total cover:
6
5
Herb Stratum (Plot size:
)
'Indicators of hydric soil and wetland hydrology must
1 Leersia virginica
20 Yes FACW
be present, unless disturbed or problematic.
2. Smilax rotundifolia
15 Yes FAC
Definitions of Four Vegetation Strata:
3 Ligustrum sinense
10 Yes FAC
Tree —Woody plants, excluding vines, 3 in. (7.6 cm) or
4.
more in diameter at breast height (DBH), regardless of
5
height.
6•
Sapling/Shrub — Woody plants, excluding vines, less
7.
than 3 in. DBH and greater than 3.28 ft (1 m) tall.
8•
Herb — All herbaceous (non -woody) plants, regardless
g,
of size, and woody plants less than 3.28 ft tall.
10.
Woody vine — All woody vines greater than 3.28 ft in
11.
height.
12.
45 = Total Cover
50% of total cover: 22.5 20% of total cover: 9
Woody Vine Stratum (Plot size: 30 )
1.
2.
3.
4.
5• Hydrophytic
0 = Total Cover Vegetation
50% of total cover: 0 20% of total cover: 0 Present? Yes '� No
Remarks: (If observed, list morphological adaptations below)
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region — Version 2.0

SOIL
Sampling Point: phIf001
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix
Redox Features
(inches) Color (moist) %
Color (moist) % Type' Loc2
Texture Remarks
0-10 10YR 3/2 100
SL
10-11 10YR 6/2 100
LS
11-20 10YR 6/8 100
COS
'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 (Al)
_ Polyvalue Below Surface (S8) (LRR S, T, U) _ 1 cm Muck (A9) (LRR O)
Histic Epipedon (A2)
_ Thin Dark Surface (S9) (LRR S, T, U)
_ 2 cm Muck (A10) (LRR S)
_ Black Histic (A3)
_ Loamy Mucky Mineral (F1) (LRR O)
_ Reduced Vertic (F18) (outside MLRA 150A,B)
Hydrogen Sulfide (A4)
_ Loamy Gleyed Matrix (F2)
_ Piedmont Floodplain Soils (1719) (LRR P, S, T)
Stratified Layers (A5)
_ Depleted Matrix (F3)
_ Anomalous Bright Loamy Soils (F20)
Organic Bodies (A6) (LRR P, T, U)
_ Redox Dark Surface (F6)
(MLRA 1536)
5 cm Mucky Mineral (A7) (LRR P, T, U)
_ Depleted Dark Surface (F7)
_ Red Parent Material (TF2)
Muck Presence (A8) (LRR U)
_ Redox Depressions (F8)
_ Very Shallow Dark Surface (TF12)
1 cm Muck (A9) (LRR P, T)
_ Marl (F10) (LRR U)
_ Other (Explain in Remarks)
Depleted Below Dark Surface (A11)
_ Depleted Ochric (F11) (MLRA 151)
Thick Dark Surface (Al2)
—Iron -Manganese Masses (F12) (LRR O, P, T) 31ndicators of hydrophytic vegetation and
Coast Prairie Redox (A16) (MLRA 150A)
_ Umbric Surface (F13) (LRR P, T, U)
wetland hydrology must be present,
Sandy Mucky Mineral (S1) (LRR O, S)
_ Delta Ochric (F17) (MLRA 151)
unless disturbed or problematic.
Sandy Gleyed Matrix (S4)
_ Reduced Vertic (F18) (MLRA 150A, 150B)
Sandy Redox (S5)
_ Piedmont Floodplain Soils (F19) (MLRA 149A)
Stripped Matrix (S6)
_ Anomalous Bright Loamy Soils (F20) (MLRA 149A, 153C, 153D)
_ Dark Surface (S7) (LRR P, S, T, U)
Restrictive Layer (if observed):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks:
US Army Corps of Engineers Atlantic and Gulf Coastal Plain Region – Version 2.0

Photo 1
Seep data point phIf001 facing west

0
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