ENG Form 6116-1 Wetland Determination Data Sheet - Arid West Region

Wetland Determination Automated Data Sheets and Jurisdictional Determination Forms

Arid_West_ADS_ENG 6116-1.xlsm

Automated Wetland Determination Sheets

OMB: 0710-0024

⚠️ Notice: This form may be outdated. More recent filings and information on OMB 0710-0024 can be found here:

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Overview

Page 1 (Vegetation)
Sheet1
Page 2 (Soil & Hydrology)

Sheet 1: Page 1 (Vegetation)

U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Arid West Region
See ERDC/EL TR-08-28; the proponent agency is CECW-CO-R

OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)

Arid West Region Automated Wetland Determination Data Sheet (ADS) version 1.17

Project/Site:

City/County:

Sampling Date:

Applicant/Owner:

State:

Sampling Point:

Investigator(s):

Section, Township, Range:

Landform (hillside, terrace, etc.):

Local relief (concave, convex, none):

Slope (%):

Subregion (LRR):

Select the Land Resource Region for this site. This information is necessary for use of the proper hydric soil indicators.

Lat:

Long:

Datum:

Soil Map Unit Name:

NWI classification:

Are climatic / hydrologic conditions on the site typical for this time of year?

Yes

(If no, explain in Remarks.)

Are Vegetation

, Soil

, or Hydrology

significantly disturbed?

Are “Normal Circumstances” present?

Yes

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

Is the Sampled Area

Hydric Soil Present?

Yes

within a Wetland?

Yes

Wetland Hydrology Present?

Yes

Remarks:

VEGETATION – Use scientific names of plants.

Tree Stratum

(Plot size:

Enter a plot size for the vegetation sampling of this stratum.

)

Absolute % Cover

Dominant Species?

Indicator Status

Dominance Test worksheet:

Number of Dominant Species That Are OBL, FACW, or FAC:

(A)

Total Number of Dominant Species Across All Strata:

(B)

=Total Cover

Percent of Dominant Species That Are OBL, FACW, or FAC:

Sapling/Shrub Stratum

(Plot size:

Enter a plot size for the vegetation sampling of this stratum.

)

(A/B)

Prevalence Index worksheet:

This sampling point has passed the Dominance Test.

Total % Cover of:

Multiply by:

I do not wish to have the Prevalence Index worksheet calculated.

OBL species

x 1 =

FACW species

x 2 =

=Total Cover

FAC species

x 3 =

Herb Stratum

(Plot size:

Enter a plot size for the vegetation sampling of this stratum.

)

FACU species

x 4 =

UPL species

x 5 =

Column Totals:

(A)

(B)

Prevalence Index = B/A =

Hydrophytic Vegetation Indicators:

Dominance Test is >50%

Prevalence Index is ≤3.01

Morphological Adaptations1 (Provide supporting

=Total Cover

data in Remarks or on a separate sheet)

Woody Vine Stratum

(Plot size:

Enter a plot size for the vegetation sampling of this stratum.

)

Problematic Hydrophytic Vegetation1 (Explain)

1Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic.

=Total Cover

Hydrophytic Vegetation Present?

% Bare Ground in Herb Stratum

% Cover of Biotic Crust

Yes

Remarks:

ENG FORM 6116-1, JUL 2018

Arid West – Version 2.0

Sheet 2: Sheet1

AGENCY DISCLOSURE NOTIFICATION
The public reporting burden for this collection of information, OMB Control Number 0710-xxxx, is estimated to average 1 hour per response, including the timefor reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding the burden estimate or burden reduction suggestions to the Department of Defense, Washington Headquarters Services,at whs.mc-alex.esd.mbx.dd-dod-information-collections@mail.mil. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR REQEUST TO THE ABOVE EMAIL.



PRIVACY ACT STATEMENT
Authorities: Rivers and Harbors Act, Section 10, 33 USC 403; Clean Water Act, Section 404, 33 USC 1344; Marine Protection, Research, and Sanctuaries Act, Section 103, 33 USC 1413; Regulatory Programs of the Corps of Engineers; Final Rule 33 CFR 320-332. Principal Purpose: Information provided on this form will be used in evaluating the application for a permit. Routine Uses: This information may be shared with the Department of Justice and other federal, state, and local government agencies, and the public and may be made available as part of a public notice as required by Federal law. Submission of requested information is voluntary, however, if information is not provided the permit application cannot be evaluated nor can a permit be issued. One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this application (see sample drawings and/or instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed activity. An application that is not completed in full will be returned. System of Record Notice (SORN). The information received is entered into our permit tracking database and a SORN has been completed (SORN #A1145b) and may be accessed at the following website: http://dpcld.defense.gov/Privacy/SORNsIndex/DOD-wide-SORN-Article-View/Article/570115/a1145b-ce.aspx

Sheet 3: Page 2 (Soil & Hydrology)

SOIL

Sampling Point:

Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)

Depth

Matrix

Redox Features

(inches)

Color (moist)

Type1

Loc2

Texture

Remarks

Err:504

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.

2Location: PL=Pore Lining, M=Matrix.

Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)

Indicators for Problematic Hydric Soils3:

In Histosols, typically 16 inches (40 cm) or more of the upper 32 inches (80 cm) is organic soil material or that have organic soil material of any thickness over rock or fragmental soil material that has interstices filled with organic soil material. This indicator does not include Folists: freely drained Histosols that are saturated with water for less than 30 cumulative days during normal years (and are not artificially drained).

Histosol (A1)

A layer starting at a depth ≤6 inches (15 cm) from the soil surface that is at least 4 inches (10 cm) thick and has a matrix with 60 percent or more chroma of 2 or less and 2 percent or more distinct or prominent redox concentrations occurring as soft masses and/or pore linings.

Sandy Redox (S5)

A layer of muck 0.5 inch (1 cm) or more thick with value of 3 or less and chroma of 1 or less and starting at a depth ≤6 inches (15 cm) from the soil surface.

1 cm Muck (A9) (LRR C)

A histic epipedon underlain by mineral soil material with chroma of 2 or less. Most histic epipedons are surface horizons 8 inches (20 cm) or more thick of organic soil material. Aquic conditions or artificial drainage are required; however, aquic conditions can be assumed if indicators of hydrophytic vegetation and wetland hydrology are present.

Histic Epipedon (A2)

A layer starting at a depth ≤6 inches (15 cm) from the soil surface in which iron-manganese oxides and/or organic matter have been stripped from the matrix and the primary base color of the soil material has been exposed. The stripped areas and translocated oxides and/or organic matter form a faintly contrasting pattern of two or more colors with diffuse boundaries. The stripped zones are 10 percent or more of the volume and are rounded.

Stripped Matrix (S6)

A layer of muck 0.75 inch (2 cm) or more thick with value of 3 or less and chroma of 1 or less, starting at a depth ≤6 inches (15 cm) from the soil surface.

2 cm Muck (A10) (LRR B)

A layer of peat, mucky peat, or muck 8 inches (20 cm) or more thick that starts at a depth of ≤6 inches (15 cm) from the soil surface; has hue of 10YR or yellower, value of 3 or less, and chroma of 1 or less; and is underlain by mineral soil material with chroma of 2 or less.

Black Histic (A3)

A layer of mucky modified loamy or clayey soil material 4 inches (10 cm) or more thick starting at a depth ≤6 inches (15 cm) from the soil surface.

Loamy Mucky Mineral (F1)

On flood plains, a layer 4 inches (10 cm) or more thick with 40 percent or more chroma of 2 or less and 2 percent or more distinct or prominent redox concentrations occurring as soft iron-manganese masses with diffuse boundaries. The layer starts at a depth ≤8 inches (20 cm) from the soil surface. Iron- manganese masses have value and chroma of 3 or less. Most commonly, they are black. The thickness requirement is waived if the layer is the mineral surface layer.

Iron-Manganese Masses (F12) (LRR D)

A hydrogen sulfide odor starting at a depth ≤12 inches (30 cm) from the soil surface.

Hydrogen Sulfide (A4)

A gleyed matrix that occupies 60 percent or more of a layer starting at a depth ≤12 inches (30 cm) from the soil surface.

Loamy Gleyed Matrix (F2)

In Vertisols and Vertic intergrades, a positive reaction to alpha-alpha-dipyridyl that: a. Is the dominant (60 percent or more) condition of a layer at least 4 inches (10 cm) thick starting at a depth ≤12 inches (30 cm); or at least 2 inches (5 cm) thick starting at a depth ≤6 inches (15 cm) from the mineral or muck soil surface, b. Occurs for at least 7 continuous days and 28 cumulative days, and c. Occurs during a normal or drier season and month (within 16 to 84 percent of probable precipitation).

Reduced Vertic (F18)

Several stratified layers starting at a depth ≤6 inches (15 cm) from the soil surface. At least one of the layers has value of 3 or less and chroma of 1 or less, or it is muck, mucky peat, peat, or a mucky modified mineral texture. The remaining layers have chroma of 2 or less. For any sandy material that constitutes the layer with value of 3 or less and chroma of 1 or less, at least 70 percent of the visible soil particles must be masked with organic material, viewed through a 10x or 15x hand lens. Observed without a hand lens, the particles appear to be close to 100 percent masked. Use of this indicator may require assistance from a trained soil scientist with local experience. A stratified layer is depositional and not pedogenic. An undisturbed sample must be observed. Individual strata are dominantly less than 1 inch (2.5 cm) thick. A hand lens is an excellent tool to aid in the identification of this indicator. Many alluvial soils have stratified layers at greater depths; these soils do not meet the requirements of this indicator. Many alluvial soils have stratified layers at the required depths but do not have chroma of 2 or less; these do not meet the requirements of this indicator.

Stratified Layers (A5) (LRR C)

A layer that has a depleted matrix with 60 percent or more chroma of 2 or less and that has a minimum thickness of either: a. 2 inches (5 cm) if the 2 inches starts at a depth ≤4 inches (10 cm) from the soil surface, or b. 6 inches (15 cm), starting at a depth ≤10 inches (25 cm) from the soil surface. A, E, and calcic horizons may have low chromas and high values and may therefore be mistaken for a depleted matrix; however, they are excluded from the concept of depleted matrix unless the soil has common or many distinct or prominent redox concentrations occurring as soft masses or pore linings. The low-chroma matrix must be the result of wetness and not a weathering or parent material feature.

Depleted Matrix (F3)

A layer derived from red parent materials that is at least 4 inches (10 cm) thick, starting at a depth ≤10 inches (25 cm) from the soil surface with a hue of 7.5YR or redder. The matrix has a value and chroma greater than 2 and less than or equal to 4. The layer must contain 10 percent or more depletions and/or distinct or prominent redox concentrations occurring as soft masses or pore linings. Redox depletions should differ in color by having: a. Value one or more higher and chroma one or more lower than the matrix, or b. Value of 4 or more and chroma of 2 or less.

Red Parent Material (F21)

A layer of muck 0.5 inch (1 cm) or more thick with value of 3 or less and chroma of 1 or less and starting at a depth ≤6 inches (15 cm) from the soil surface.

1 cm Muck (A9) (LRR D)

A layer that is at least 4 inches (10 cm) thick, starting at a depth ≤8 inches (20 cm) from the mineral soil surface, and has: a. Matrix value of 3 or less and chroma of 1 or less and 2 percent or more distinct or prominent redox concentrations occurring as soft masses or pore linings, or b. Matrix value of 3 or less and chroma of 2 or less and 5 percent or more distinct or prominent redox concentrations occurring as soft masses or pore linings.

Redox Dark Surface (F6)

In depressions and and flood plains subject to frequent ponding and/or flooding, one of the following must be observed: a. If bedrock occurs between 6 inches (15 cm) and 10 inches (25 cm) of the soil surface, a layer at least 6 inches (15 cm) thick starting at a depth ≤4 inches (10 cm) from the soil surface with a value 2.5 or less and chroma 1 or less, and the remaining soil to bedrock must have the same colors as above or any other color that has chroma of 2 or less. b. If bedrock occurs at a depth ≤6 inches (15 cm) from the soil surface, more than half of the soil thickness must have value 2.5 or less and chroma 1 or less and the remaining soil to bedrock must have the same colors as above or any other color that has chroma of 2 or less.

Very Shallow Dark Surface (F22)

A layer with a depleted or gleyed matrix that has 60 percent or more chroma of 2 or less, starting at a depth ≤12 inches (30 cm) from the soil surface, and having a minimum thickness of either: a. 6 inches (15 cm), or b. 2 inches (5 cm) if the 2 inches consists of fragmental soil material. Organic, loamy, or clayey layer(s) above the depleted or gleyed matrix must have value of 3 or less and chroma of 2 or less starting at a depth ≤6 inches (15 cm) from the soil surface and extend to the depleted or gleyed matrix. Any sandy material above the depleted or gleyed matrix must have value of 3 or less and chroma of 1 or less starting at a depth ≤6 inches (15 cm) from the soil surface and extend to the depleted or gleyed matrix. Viewed through a 10x or 15x hand lens, at least 70 percent of the visible sand particles must be masked with organic material. Observed without a hand lens, the sand particles appear to be close to 100 percent masked. A, E, and calcic horizons may have low chromas and high values and may therefore be mistaken for a depleted matrix; however, they are excluded from the concept of depleted matrix unless the soil has common or many distinct or prominent redox concentrations occurring as soft masses or pore linings. The low-chroma matrix must be the result of wetness and not a weathering or parent material feature.

Depleted Below Dark Surface (A11)

Redox depletions with value of 5 or more and chroma of 2 or less in a layer that is at least 4 inches (10 cm) thick, starting at a depth ≤8 inches (20 cm) from the mineral soil surface, and has: a. Matrix value of 3 or less and chroma of 1 or less and 10 percent or more redox depletions, or b. Matrix value of 3 or less and chroma of 2 or less and 20 percent or more redox depletions. Care should be taken not to mistake mixing of an E or calcic horizon into the surface layer for depletions. The “pieces” of E and calcic horizons are not redox depletions.

Depleted Dark Surface (F7)

Other (Explain in Remarks)

A layer at least 6 inches (15 cm) thick with a depleted or gleyed matrix that has 60 percent or more chroma of 2 or less starting below 12 inches (30 cm) of the surface. The layer(s) above the depleted or gleyed matrix and starting at a depth <6 inches (15 cm) from the soil surface must have value of 2.5 or less and chroma of 1 or less to a depth of at least 12 inches (30 cm) and value of 3 or less and chroma of 1 or less in any remaining layers above the depleted or gleyed matrix. In any sandy material above the depleted or gleyed matrix, at least 70 percent of the visible soil particles must be masked with organic material, viewed through a 10x or 15x hand lens. Observed without a hand lens, the particles appear to be close to 100 percent masked. A, E, and calcic horizons may have low chromas and high values and may therefore be mistaken for a depleted matrix; however, they are excluded from the concept of depleted matrix unless the soil has common or many distinct or prominent redox concentrations occurring as soft masses or pore linings. The low- chroma matrix must be the result of wetness and not a weathering or parent material feature.

Thick Dark Surface (A12)

In closed depressions subject to ponding, 5 percent or more distinct or prominent redox concentrations occurring as soft masses or pore linings in a layer that is 2 inches (5 cm) or more thick and starts at a depth ≤4 inches (10 cm) from the soil surface.

Redox Depressions (F8)

A layer of mucky modified sandy soil material 2 inches (5 cm) or more thick starting at a depth ≤6 inches (15 cm) from the soil surface.

Sandy Mucky Mineral (S1)

A gleyed matrix that occupies 60 percent or more of a layer starting at a depth ≤6 inches (15 cm) from the soil surface.

Sandy Gleyed Matrix (S4)

3Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic.

Restrictive Layer (if observed):

Type:

Depth (inches):

Hydric Soil Present?

Yes

Note: If macros are disabled, check this blank if the only hydric soil indicator verified is Histic Epipedon (A2) or is on the list of indicators for problematic hydric soils.

Remarks:

HYDROLOGY

Wetland Hydrology Indicators:

Primary Indicators (minimum of one is required; check all that apply)

Secondary Indicators (minimum of two required)

This indicator consists of the direct, visual observation of surface water (flooding or ponding) during a site visit.

Surface Water (A1)

Salt crusts are hard or brittle deposits of salts formed on the ground surface due to the evaporation of saline surface water.

Salt Crust (B11)

Water marks are discolorations or stains on the bark of woody vegetation, rocks, bridge supports, buildings, fences, or other fixed objects as a result of inundation.

Water Marks (B1) (Riverine)

This indicator consists of the direct, visual observation of the water table 12 inches (30 cm) or less below the surface in a soil pit, auger hole, or shallow monitoring well. This indicator includes water tables derived from perched water, throughflow, and discharging groundwater (e.g., in seeps) that may be moving laterally near the soil surface.

High Water Table (A2)

This indicator includes ponding-remnant biotic crusts, benthic microflora, and the dried remains of free-floating algae left on or near the soil surface after dewatering.

Biotic Crust (B12)

Sediment deposits are thin layers or coatings of fine-grained mineral material (e.g., silt or clay) or organic matter (e.g., pollen), sometimes mixed with other detritus, remaining on tree bark, plant stems or leaves, rocks, and other objects after surface water recedes.

Sediment Deposits (B2) (Riverine)

Visual observation of saturated soil conditions 12 inches (30 cm) or less from the soil surface as indicated by water glistening on the surfaces and broken interior faces of soil samples removed from the pit or auger hole. This indicator must be associated with an existing water table located immediately below the saturated zone; however, this requirement is waived under episaturated conditions if there is a restrictive soil layer or bedrock within 12 inches (30 cm) of the surface.

Saturation (A3)

Presence of numerous live individuals, diapausing insect eggs or crustacean cysts, or dead remains of aquatic invertebrates, such as clams, snails, insects, ostracods, shrimp, and other crustaceans, either on the soil surface or clinging to plants or other emergent objects.

Aquatic Invertebrates (B13)

Drift deposits consist of rafted debris that has been deposited on the ground surface or entangled in vegetation or other fixed objects. Debris consists of remnants of vegetation (e.g., branches, stems, and leaves), man-made litter, or other waterborne materials. Drift material may be deposited at or near the high water line in ponded or flooded areas, piled against the upstream sides of trees, rocks, and other fixed objects, or widely distributed within the dewatered area.

Drift Deposits (B3) (Riverine)

Water marks are discolorations or stains on the bark of woody vegetation, rocks, bridge supports, buildings, fences, or other fixed objects as a result of inundation.

Water Marks (B1) (Nonriverine)

A hydrogen sulfide (rotten egg) odor within 12 inches (30 cm) of the soil surface. Note: If macros are disabled, check this blank if you have hydric soil indicator Hydrogen Sulfide (A4) checked.

Hydrogen Sulfide Odor (C1)

This indicator consists of flow patterns visible on the soil surface or eroded into the soil, low vegetation bent over in the direction of flow, absence of leaf litter or small woody debris due to flowing water, and similar evidence that water flowed across the ground surface.

Drainage Patterns (B10)

Sediment Deposits (B2) (Nonriverine)

Presence of a layer of any thickness containing 2 percent or more iron-oxide coatings or plaques on the surfaces of living roots and/or iron-oxide coatings or linings on soil pores immediately surrounding living roots within 12 inches (30 cm) of the surface.

Oxidized Rhizospheres on Living Roots (C3)

Visual observation of the water table between 12 and 24 inches (30 and 60 cm) below the surface during the normal dry season or during a drier-than-normal year.

Dry-Season Water Table (C2)

Drift Deposits (B3) (Nonriverine)

Presence of a layer containing reduced (ferrous) iron in the upper 12 inches (30 cm) of the soil profile, as indicated by a ferrous iron test or by the presence of a soil that changes color upon exposure to the air.

Presence of Reduced Iron (C4)

Presence of crayfish burrows, as indicated by openings in soft ground up to 2 inches (5 cm) in diameter, often surrounded by chimney-like mounds of excavated mud.

Crayfish Burrows (C8)

Surface soil cracks consist of shallow cracks that form when fine-grained mineral or organic sediments dry and shrink, often creating a network of cracks or small polygons.

Surface Soil Cracks (B6)

Presence of a layer containing 2 percent or more redox concentrations as pore linings or soft masses in the tilled surface layer of soils cultivated within the last two years. The layer containing redox concentrations must be within the tilled zone or within 12 inches (30 cm) of the soil surface, whichever is shallower.

Recent Iron Reduction in Tilled Soils (C6)

One or more recent aerial photographs or satellite images indicate soil saturation. Saturated soil signatures must correspond to field-verified hydric soils, depressions or drainage patterns, differential crop management, or other evidence of a seasonal high water table.

Saturation Visible on Aerial Imagery (C9)

One or more recent aerial photographs or satellite images show the site to be inundated.

Inundation Visible on Aerial Imagery (B7)

This indicator consists of a layer of muck 1 inch (2.5 cm) or less thick on the soil surface.

Thin Muck Surface (C7)

This indicator occurs in and around the margins of depressions, such as temporary pools, and consists of the presence of an aquitard within the soil profile that is potentially capable of perching water within 12 in. (30 cm) of the surface. Indicators of hydrophytic vegetation and hydric soil must also be present. Note: If macros are disabled, check this blank if the above conditions are met, or enter a space to remove the yellow background.

Shallow Aquitard (D3)

Water-stained leaves are fallen or recumbent dead leaves that have turned grayish or blackish in color due to inundation for long periods.

Water-Stained Leaves (B9)

Other (Explain in Remarks)

The plant community passes the FAC-neutral test.

FAC-Neutral Test (D5)

Field Observations:

Surface Water Present?

Yes

Depth (inches):

Water Table Present?

Yes

Depth (inches):

Saturation Present?

Yes

Depth (inches):

Wetland Hydrology Present?

Yes

(includes capillary fringe)

Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:

Remarks:

ENG FORM 6116-1, JUL 2018

Arid West – Version 2.0

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