ENG Form 6116-8 Wetland Determination Data Sheet - Northcentral and Nort

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Overview

Page 1 (Hydrology)
Page 2 (Vegetation)
Page 3 (Soil)
Privacy Act Information

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Sheet 1: Page 1 (Hydrology)

U.S. Army Corps of Engineers WETLAND DETERMINATION DATA SHEET – Northcentral and Northeast Region See ERDC/EL TR-12-1; 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)

Northcentral and Northeast Region Automated Wetland Determination Data Sheet (ADS) version 1.30

Project/Site:

City/County:

Sampling Date:

Applicant/Owner:

State:

Select the state for the site. This information is necessary for use of the proper plant indicator statuses for a few plant species.

Sampling Point:

Investigator(s):

Section, Township, Range:

Landform (hillside, terrace, etc.):

Local relief (concave, convex, none):

Slope %:

Subregion (LRR or MLRA):

Select the Land Resource Region and Major Land Resource Area for this site. This information is necessary for use of the proper hydric soil indicators and a few plant species indicator statuses.

Lat:

Long:

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

X

Is the Sampled Area

Hydric Soil Present?

Yes

No

X

within a Wetland?

Yes

No

X

Wetland Hydrology Present?

Yes

No

X

If yes, optional Wetland Site ID:

Remarks: (Explain alternative procedures here or in a separate report.)

HYDROLOGY

Wetland Hydrology Indicators:

Secondary Indicators (minimum of two required)

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

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)

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

Surface Water (A1)

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)

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)

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)

Presence of live individuals, diapausing insect eggs or crustacean cysts, or dead remains of aquatic fauna, such as, but not limited to, clams, aquatic snails, aquatic insects, ostracods, shrimp, other crustaceans, tadpoles, or fish, either on the soil surface or clinging to plants or other emergent objects.

Aquatic Fauna (B13)

Presence of moss trim lines on trees or other upright objects in seasonally inundated areas.

Moss Trim Lines (B16)

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)

This indicator consists of the presence of marl on the soil surface.

Marl Deposits (B15)

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)

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)

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)

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)

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)

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)

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)

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)

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)

This indicator is present if individuals of the same species growing in the potential wetland are clearly of smaller stature, less vigorous, or stressed compared with individuals growing in nearby non-wetland situations.

Stunted or Stressed Plants (D1)

This indicator consists of a mat or dried crust of algae, perhaps mixed with other detritus, left on or near the soil surface after dewatering.

Algal Mat or Crust (B4)

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)

This indicator is present if the immediate area in question is located in a depression, drainageway, concave position within a floodplain, at the toe of a slope, on the low-elevation fringe of a pond or other water body, or in an area where groundwater discharges.

Geomorphic Position (D2)

This indicator consists of a thin orange or yellow crust or gel of oxidized iron on the ground surface or on objects near the surface.

Iron Deposits (B5)

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 consists of the presence of an aquitard within 24 inches (60 cm) of the soil surface that is potentially capable of perching water within 12 inches (30 cm) of the surface.

Shallow Aquitard (D3)

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

Inundation Visible on Aerial Imagery (B7)

Other (Explain in Remarks)

This indicator consists of the presence of microtopographic features that occur in areas of seasonal inundation or shallow water tables, such as hummocks, tussocks, and flark-and- strang topography, with microhighs less than 36 inches (90 cm) above the base soil level.

Microtopographic Relief (D4)

On concave land surfaces (e.g., depressions and swales), the ground surface is either unvegetated or sparsely vegetated (less than 5 percent ground cover) due to long-duration ponding during the growing season.

Sparsely Vegetated Concave Surface (B8)

The plant community passes the FAC-neutral test.

FAC-Neutral Test (D5)

Field Observations:

Surface Water Present?

Yes

No

Depth (inches):

Water Table Present?

Yes

No

Depth (inches):

Saturation Present?

Yes

No

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 6116-8, JUL 2018

Northcentral and Northeast – Version 2.0

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Sheet 2: Page 2 (Vegetation)

VEGETATION

– Use scientific names of plants.

Sampling Point:

Tree Stratum

(Plot size:

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

)

Absolute % Cover

Dominant Species?

Indicator Status

Dominance Test worksheet:

This sampling point has passed the Rapid Test for Hydrophytic Vegetation.

1.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

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

I do not wish to have the Dominance Test worksheet calculated.

2.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

(A)

3.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Total Number of Dominant Species Across All Strata:

4.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

(B)

5.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

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

6.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

(A/B)

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Prevalence Index worksheet:

This sampling point has passed the Rapid Test for Hydrophytic Vegetation

=Total Cover

Total % Cover of:

Multiply by:

and/or the Dominance Test. I do not wish to have the Prevalence Index

Sapling/Shrub Stratum

(Plot size:

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

)

OBL species

x 1 =

worksheet calculated.

1.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

FACW species

x 2 =

2.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

FAC species

x 3 =

3.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

FACU species

x 4 =

4.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

UPL species

x 5 =

5.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Column Totals:

(A)

(B)

6.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Prevalence Index = B/A =

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Hydrophytic Vegetation Indicators:

=Total Cover

1 - Rapid Test for Hydrophytic Vegetation

Herb Stratum

(Plot size:

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

)

2 - Dominance Test is >50%

1.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

3 - Prevalence Index is ≤3.01

2.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

4 - Morphological Adaptations1 (Provide supporting

3.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

data in Remarks or on a separate sheet)

4.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Problematic Hydrophytic Vegetation1 (Explain)

5.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

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

6.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

7.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Definitions of Vegetation Strata:

8.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Tree – Woody plants 3 in. (7.6 cm) or more in diameter at breast height (DBH), regardless of height.

9.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

10.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Sapling/shrub – Woody plants less than 3 in. DBH and greater than or equal to 3.28 ft (1 m) tall.

11.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

12.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Herb – All herbaceous (non-woody) plants, regardless of size, and woody plants less than 3.28 ft tall.

=Total Cover

Woody Vine Stratum

(Plot size:

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

)

Woody vines – All woody vines greater than 3.28 ft in height.

1.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

2.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

3.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Hydrophytic Vegetation Present?

4.

Select the state for the site on Page 1 and subregion (LRR/MLRA). This information is necessary for use of the proper plant indicator statuses for a few plant species.

Yes

No

X

=Total Cover

Remarks: (Include photo numbers here or on a separate sheet.)

ENG FORM 6116-8, JUL 2018

Northcentral and Northeast – Version 2.0

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Sheet 3: Page 3 (Soil)

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)

%

Color (moist)

%

Type1

Loc2

Texture

Remarks

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

Err:504

1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, MS=Masked Sand Grains.

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

Hydric Soil Indicators:

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 4 inches (10 cm) thick, starting at a depth less than or equal to the upper 6 inches (15 cm) from the soil surface, with a matrix value 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. The matrix color of the layer directly below the dark layer must have the same colors as those described above or any color that has chroma of 2 or less. From Regional Supplement v2.0 User Notes: If the dark layer is greater than 4 inches (10 cm) thick, then the indicator is met, because any dark soil material in excess of 4 inches (10 cm) meets the requirement that "the layer immediately below the dark layer must have the same colors as those described above…". If the dark layer is exactly 4 inches (10 cm) thick, then the material immediately below must have a matrix chroma of 2 or less.

Dark Surface (S7)

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 K, L, MLRA 149B)

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 with value of 3 or less and chroma of 1 or less starting at a depth ≤6 inches (15 cm) from the soil surface. 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. Directly below this layer, 5 percent or more of the soil volume has value of 3 or less and chroma of 1 or less, and the remainder of the soil volume has value of 4 or more and chroma of 1 or less to a depth of 12 inches (30 cm) or to the spodic horizon, whichever is less.

Polyvalue Below Surface (S8) (LRR R,

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 chroma of 3 or less with 2 percent or more distinct or prominent redox concentrations occurring as soft masses and/or pore linings. These hydric soils occur mainly on depressional landforms and portions of the intermound landforms on the Lissie Formation.

Coast Prairie Redox (A16) (LRR K, L, R)

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)

MLRA 149B)

A layer of mucky peat or peat 2 inches (5 cm) or more thick with value of 3 or less and chroma of 2 or less, starting at a depth ≤6 inches (15 cm) from the soil surface, and underlain by sandy soil material.

5 cm Mucky Peat or Peat (S3) (LRR K, L, R)

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

Hydrogen Sulfide (A4)

A layer 2 inches (5 cm) or more thick, starting at a depth ≤6 inches (15 cm) from the soil surface, 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. This layer is underlain by a layer or layers with value of 4 or less and chroma of 1 or less to a depth of 12 inches (30 cm) or to the spodic horizon, whichever is less.

Thin Dark Surface (S9) (LRR R, MLRA 149B)

A layer with value of 3 or less and chroma of 1 or less starting at a depth ≤6 inches (15 cm) from the soil surface. 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. Directly below this layer, 5 percent or more of the soil volume has value of 3 or less and chroma of 1 or less, and the remainder of the soil volume has value of 4 or more and chroma of 1 or less to a depth of 12 inches (30 cm) or to the spodic horizon, whichever is less.

Polyvalue Below Surface (S8) (LRR K, L)

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)

In coastal zones and dune-and-swale complexes, a layer 2 inches (5 cm) or more thick starting at a depth ≤4 inches (10 cm) from the surface with chroma 4 or less and 2% or more distinct or prominent redox concentrations.

High Chroma Sands (S11) (LRR K, L)

A layer 2 inches (5 cm) or more thick, starting at a depth ≤6 inches (15 cm) from the soil surface, 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. This layer is underlain by a layer or layers with value of 4 or less and chroma of 1 or less to a depth of 12 inches (30 cm) or to the spodic horizon, whichever is less.

Thin Dark Surface (S9) (LRR K, L)

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)

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) (LRR K, L)

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 K, L, R)

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)

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)

On flood plains, a mineral layer at least 6 inches (15 cm) thick, starting at a depth ≤10 inches (25 cm) from the soil surface, with a matrix (60 percent or more of the volume) chroma of less than 4 and 20 percent or more distinct or prominent redox concentrations occurring as soft masses or pore linings.

Piedmont Floodplain Soils (F19) (MLRA 149B)

A layer that is ≥2 inches (5 cm) thick, that starts at a depth ≤6 inches (15 cm) from the mineral soil surface, that has value of 3 or less and chroma of 2 or less, and that is directly underlain by either: a. One or more layers of spodic materials that have a combined thickness of ≥3 inches (8 cm), that start at a depth ≤12 inches (30 cm) from the mineral soil surface, and that have a value and chroma of 3 or less; or b. One or more layers that have a combined thickness of ≥2 inches (5 cm), that start at a depth ≤12 inches (30 cm) from the mineral soil surface, that have a value of 4 or more and chroma of 2 or less, and that are directly underlain by one or more layers that have a combined thickness of ≥3 inches (8 cm), that are spodic materials, and that have a value and chroma of 3 or less.

Mesic Spodic (A17)

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) (outside MLRA 145)

(MLRA 144A, 145, 149B)

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 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)

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 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)

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 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 marl with value of 5 or more and chroma 2 or less starting at a depth ≤4 inches (10 cm) from the soil surface. Marl is a limnic material deposited in water by precipitation of CaCO3 by algae as defined in Soil Taxonomy (Soil Survey Staff, 1999). It has a Munsel value of 5 or more and reacts with dilute HCl to evolve CO2. Marl is not the carbonatic substrate material associated with limestone bedrock. Some soils have materials with all of the properties of marl, except for the required Munsell value. Normally, this indicator occurs at the soil surface.

Marl (F10) (LRR K, L)

3Indicators of hydrophytic vegetation and

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 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) (MLRA 145)

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.

No

X

Remarks:

ENG FORM 6116-8, JUL 2018

Northcentral and Northeast – Version 2.0

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