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HomeMy WebLinkAboutRS_Wetland_Assessment_0109190_v1Wetland & Aquatic Sciences
Wildlife Ecology
Landscape Architecture
2111 N. Northgate Way, Ste 219 Seattle, WA 98103 206-525-8122 www.raedeke.com
Associates, Inc.
Raedeke
TECHNICAL MEMORANDUM
January 9, 2019
To: Mr. Mike Pruett, Segale Properties, Inc.
Mr. Mark Segale, Segale Properties, Inc.
From: Christopher Wright, BS, Raedeke Associates, Inc.
Andrew Rossi, BS, Raedeke Associates, Inc.
Annamaria Clark, BS, Raedeke Associates, Inc.
RE: Upper Balch Pit – Critical Areas Update
(R.A.I. No. 2000-011-003)
At your request, Raedeke Associates, Inc. staff visited the Upper Balch Pit property in
Renton, Washington on January 3, 2019. The purpose of our site investigation was to
provide an update to our previous critical area assessment (Raedeke Associates, Inc.
2010). We investigated the site to identify any potential critical areas and gathered data
in order to characterize current site conditions.
SITE LOCATION
The Upper Balch Pit is a 14-acre property located south of NE 4th Street, west of Monroe
Avenue NE, east of Jefferson Ave NE, and north of NE 2nd street in Renton, Washington
(Figure 1). This places the property within a portion of Section 16 Township 23 North
Range 5 East, W.M. The property is identified as Tax Parcel No. 1623059059. Parcel
maps retrieved on-line from King County (2019) depict the property boundaries.
BACKGROUND REVIEW
Prior to conducting our site visit, we reviewed existing background maps and information
for the project site. We reviewed current and historical aerial photographs (Google Earth
2019) (Figure 2) to assist in the definition of existing plant communities, drainage
patterns, and land use. We also reviewed an existing conditions graphic (Figure 3)
provided by Segale Properties. In addition, we reviewed maps from the U.S.D.A. Natural
Resource Conservation Service (NRCS 2019) Web Soil Survey, King County iMap
(2019) (Figure 4), the U.S. Fish and Wildlife (USFWS 2019) National Wetland Inventory
(NWI) (Figure 5), and in order to assist in our determination of whether wetlands or
streams were present within or in vicinity of the project site. We also reviewed the
Mr. Mike Pruett, Segale Properties, Inc.
January 9, 2019
Page 2
Washington Department of Fish and Wildlife (WDFW 2019) Priority Habitats and
Species map to identify documented presence of any endangered or threatened wildlife or
their habitat in vicinity of the project site.
The USDA NRCS (2019) Web Soil Survey identifies mined pits and Arents, Everett
material within the project site. Soil series boundaries or mapping units are mapped from
aerial photographs with limited field verification. Thus, the location and extent of
boundaries between mapping units may not be accurate for a given parcel of land within
the survey area.
The USFWS (2019) National Wetland Inventory (Figure 5) map depicts a palustrine,
freshwater pond (PABFh) on the north central location of the project site and an off-site
palustrine, freshwater pond (PABF) approximately 1100 feet southwest. The WDFW
(2019) PHS database map also shows a freshwater pond mapped on the project site, but
no documented occurrence of species of concern, including endangered, threatened, or
sensitive species or their habitat on or adjacent to the project site. In addition, the Water
Quality Atlas map (WDOE 2019) depicts an off-site stream approximately 1500 feet
south of the project site. Any buffers associated with the off-site features are too far
away to impact the subject property. The maximum standard buffers for streams and
wetlands are 115 feet and 225 feet, respectively, p er Renton Municipal Code (2018).
EXISTING CONDITIONS & OBSERVATIONS
We visited the site on January 3, 2019 to identify potential critical areas and collect
information regarding the existing conditions of the site. The Upper Balch Pit is a
reclaimed gravel mine. The majority of the site consists of gravelly, sandy fill sloping to
various degrees. The entire site is fenced along the perimeter and can be accessed
through a locked gate via Jefferson Avenue NE to the west. The interior sides of the
fence are steeply sloped (50 – 70%) for ten to twenty horizontal feet throughout most of
the property, except in the western portion of the site near the location of the entrance
gate and a small pre-existing structure (approximately 150 square feet in size). The side
slopes are vegetated with a mix of deciduous trees and shrubs common to the region.
Central and southern portions of the Upper Balch Pit contain areas of unvegetated fill and
areas vegetated by grasses, herbs, and shrubs common to the region. A paved road
begins at the entrance gate and slopes south towards the southwest corner of the site, then
turns directly east towards the southeast corner where it ends near an old wheel wash
station.
The lowest portions of the site are located at the bottom of the eastern slope. This low
area was ponded with stormwater at the time of our site visit. The area is unvegetated
and a disposal location for fill material from other sites.
Along the east slope of the site, two storm drainage pipes convey water from Monroe
Avenue NE. The largest of the two is a black PVC pipe that is 2-feet in diameter. It
Mr. Mike Pruett, Segale Properties, Inc.
January 9, 2019
Page 3
extends from the top of the slope, at the east edge of the site, and drains downslope to the
west. The pipe runs all the way downhill to the lowest portion of the site where water is
ponded. The end of this pipe was inundated by water at the time of our site visit and not
visible. The second pipe is located approximately 15 feet south of the first. It is black
corrugated plastic, 1.5-feet in diameter. It also appears to begin at the top of the slope;
however, this pipe ends less than half way down the slope. We did not observe any water
draining from this pipe at the time of our visit.
We collected data at several sample plots at the project site (Appendix A). Soils on the
site generally consist of up to 5 inches of brown (2.5Y 4/2 to 2.5Y 5/2) sandy soils with
gravels and clays, over brown to olive brown (2.5Y 5/3 to 5Y 5/2) sandy soils to a depth
of greater than 15 inches. In several sample plots, the upper few inches of soil were
saturated due to rain but there was no saturation or water table beneath to a depth of up to
15 inches. The majority of the site did not have redoximorphic features in the soils nor
wetland hydrology. A sample plot in the location of the NWI mapped wetland revealed
no wetland indicators. This area is not a jurisdictional wetland.
On a low area of land adjacent to the ponded area and at the toe of the eastern slope, we
observed hydric soil, hydrology, and a mixed vegetation community that included
hydrophytic plants. Sample plot 3 is located in this location. It is near the bottom of the
slope from Monroe Avenue NE where it appears stormwater runoff drains down from the
street. The pipes discussed earlier are located along this slope. Soils in this location
consist of up to 5 inches of dark grayish brown (2.5Y 4/2) over olive gray (5Y 5/2) sandy
soils with redoximorphic concentrations (10YR 3/6 to 10YR 4/4) throughout. The
vegetation community is dominated by balsam poplar (Populus balsamifera, FAC),
Himalayan blackberry (Rubus armeniacus, FAC), Kentucky blue grass (Poa pratensis,
FAC), and reed canary grass (Phalaris arundinacea, FACW). We observed saturated
soils at a depth of 4 inches and a water table at a depth of 7 inches. However, hydrology
appears to be the result of roadway runoff, diverted stormwater, and water ponding on-
site due to compact fill rather than supported by a natural groundwater table. Therefore,
although we observed hydric soil and hydrophytic vegetation in this area, hydrology does
not meet criteria to be considered wetland.
The surrounding area immediately adjacent to the subject property consists of
developed parcels with businesses, cemeteries with mowed lawns, and paved parking lots
and roads. We did not observe any evidence of critical areas on the adjacent lots or
anywhere in the immediate vicinity.
CONCLUSION
Based on our January 3, 2019, investigation of the Upper Balch Pit project site, we did not
identify any wetlands or streams within the property boundaries or in the immediate
vicinity. The majority of the property consists of unvegetated fill and well-draining steep
slopes vegetated by weedy herbaceous and shrub species. The area with hydric soil and
Mr. Mike Pruett, Segale Properties, Inc.
January 9, 2019
Page 4
hydrophytic vegetation is supported by diverted stormwater and water ponding upon
compact fill, which does not meet criteria to be considered a wetland.
LIMITATIONS
We have prepared this letter for the exclusive use of Segale Properties, Inc. and their
consultants. No other person or agency may rely upon the information, analysis, or
conclusions contained herein without permission from Segale Properties, Inc.
The determination of ecological system classifications, functions, values, and boundaries
is an inexact science, and different individuals and agencies may reach different
conclusions. With regard to wetlands, the final determination of their boundaries for
regulatory purposes is the responsibility of the various agencies that regulate
development activities in wetlands. We cannot guarantee the outcome of such
determinations. Therefore, the conclusions of this report should be reviewed by the
appropriate regulatory agencies.
We warrant that the work performed conforms to standards generally accepted in our
field and prepared substantially in accordance with then-current technical guidelines and
criteria. The conclusions of this report represent the results of our analysis of the
information provided by the project proponent and their consultants, together with
information gathered in the course of the study. No other warranty, expressed or implied,
is made.
Thank you for the opportunity to prepare this material for you. Please let us know if you
have any questions or need additional information.
Respectfully submitted,
RAEDEKE ASSOCIATES, INC.
Christopher W. Wright Annamaria Clark
Vice-President/Soil and Wetland Scientist Wetland Biologist
Mr. Mike Pruett, Segale Properties, Inc.
January 9, 2019
Page 5
LITERATURE CITED
Google Earth. 2019. Image for 47.486538° N, 122.176401° W in King County, WA. © 2019 Google. Accessed January 2019.
King County. 2019. iMAP GIS Interactive map center, King County, Washington.
http://www.kingcounty.gov/operations/GIS/Maps/iMAP.aspx. Accessed January
2019.
Raedeke Associates, Inc. 2010. Upper Balch Pit – Wetland Reconnaissance. Technical
Memorandum to Mark Segale, Segale Properties, Inc. dated July 30, 2010.
Renton, City of. 2018. Renton Municipal Code current through November 19, 2018.
Accessed January 9, 2019.
U.S. Army Corps of Engineers. 2010. Regional supplement to the Corps of Engineers
wetland delineation manual: western mountains, valleys, and coast region
(Version 2.0). Wakeley, J.S., R.W. Lichvar, and C.V. Noble, eds. May 2010.
U.S.D.A. Natural Resources Conservation Service. 2019. On-line Web Soil Survey.
http://websoilsurvey.nrcs.usda.gov. Accessed January 2019.
U.S. Fish and Wildlife Service. 2019. National Wetland Inventory, Wetlands Online
Mapper. http://wetlandsfws.er.usgs.gov/wtlnds/launch.html. Accessed January
2019.
Washington Department of Fish and Wildlife. 2019. PHS on the web. Available
at: http://wdfw.wa.gov/mapping/phs. Accessed January 2019.
UPPER BALCH PIT
FIGURE 1 - VICINITY MAP
RAI PROJECT #2000-011-003
PREPARED: 1/08/2019
BY: AIC
Associates, Inc.
Raedeke
2111 N. Northgate Way, Suite 219
Seattle, Washington 98133
SOURCE INFORMATION:
Google Maps 2019
FIGURE DISCLAIMER STATEMENT: Displaying approximate location.
PROJECT
LOCATION
UPPER BALCH PIT
FIGURE 2 - AERIAL WITH SAMPLE PLOTS
RAI PROJECT #2000-011-003
PREPARED: 1/08/2019
BY: AIC
Associates, Inc.
Raedeke
2111 N. Northgate Way, Suite 219
Seattle, Washington 98133
SOURCE INFORMATION:
Google Earth 2019
FIGURE DISCLAIMER STATEMENT: Displaying approximate locations.
TOPOGRAPHY MAPFIGURE 3
EXISTING CONDITIONS
UPPER BALCH PIT
FIGURE 4 - KING COUNTY iMAP
RAI PROJECT #2000-011-003
PREPARED: 1/08/2019
BY: AIC
Associates, Inc.
Raedeke
2111 N. Northgate Way, Suite 219
Seattle, Washington 98133
SOURCE INFORMATION:
King County 2019
FIGURE DISCLAIMER STATEMENT:
301 Mo nroe Ave NE
Date: 1 /2/2019 Notes:
Th e informatio n include d on this map has been comp iled by Kin g Co unty sta ff f rom a varie ty of sources and is subject to chan gewithout notice. K ing Coun ty makes no representat ions or warra nt ie s, express or imp lied, as t o accuracy, co mpleteness, timeliness,or rights to the use o f such inf ormation. This document is not in tended for use as a survey p ro duct. K ing Coun ty sh all no t be liablefor a ny g eneral, sp ecial, indirect , incid ental, or conseq uential damages includin g, bu t n ot limited to, lost re venue s or lost pro fitsresulting from t he use or misuse of the info rmation con tain ed on th is map. Any sa le of th is map or inf orma tion on this map isprohibited except by writte n permissio n of Kin g County.
UPPER BALCH PITFIGURE 5 - NATIONAL WETLANDS INVENTORYRAI PROJECT #2000-011-003PREPARED: 1/08/2019BY: AIC Associates, Inc. Raedeke 2111 N. Northgate Way, Suite 219Seattle, Washington 98133SOURCE INFORMATION: USFWS 2019U.S. Fish and Wildlife Service, National Standards and Support Team,wetlands_team@fws.govJanuary 4, 201900.10.20.05mi00.150.30.075km1:6,873This map is for general reference only. The US Fish and Wildlife WetlandsEstuarine and Marine DeepwaterEstuarine and Marine WetlandFreshwater Emergent WetlandFreshwater Forested/Shrub WetlandFreshwater PondLakeOtherRiverineJanuary 4, 2019This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site.
APPENDIX A
Field Survey Data Sheets
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 1
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Concave Slope (%): 5
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.487330 Long: -122.177011 Datum: WGS84
Soil Map Unit Name: Arents, Everett material NWI classification: PABFh
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation Yes, Soil Yes, or Hydrology Yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: Sample Plot located in Northwest Corner, 25-30 feet below street level. Moderate rain earlier in the day with light rain during site visit.
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. NONE
2.
3.
4.
0 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. NONE
2.
3.
4.
5.
0 = Total Cover
Herb Stratum (Plot size: 1 m)
1. Unknown Herb. 1 n n/a
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
1 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. None 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 99
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: (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
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 1
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
0-7 2.5Y 5/2 90 10YR 5/8 10 c m Gr S w/ Clay contains high portion of gravel/pebble
7-15 2.5Y 5/3 70 10YR 5/8 30 Gr S w/ Clay fire peds - no redox
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches): 2
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: Saturation 0-2". Some moisture 2-15", but no naturation or water table
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 2
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Concave Slope (%): 1-3%
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.487220 Long: -122.175666 Datum: WGS84
Soil Map Unit Name: PITS NWI classification: PABFh
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation yes, Soil yes, or Hydrology yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: Sample Plot located at northwest corner of large ponded area. Towards the northeast corner of project site.
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. None 0
2.
3.
4.
0 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. None 0
2.
3.
4.
5.
0 = Total Cover
Herb Stratum (Plot size: 1 m)
1. None 0
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
0 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. None 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 100
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: (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
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks: No vegetation in sample plot
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 2
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
0-2 2.5Y 4/3 100 S w/ cl Sand with clay
2-7 5G 5/1 100 Cl clay
7+ Refusal, very hard/dry clay.
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches): 0-2"
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: no water below 2 inches
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 3
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Concave Slope (%): 1-3
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.486614 Long: -122.175282 Datum: WGS84
Soil Map Unit Name: Arents, Everett material NWI classification: PABFh
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation yes, Soil yes, or Hydrology yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks:
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. Populus balsamifera (Black Cottonwood) 60 y FAC
2. Alnus rubra (red alder) 5 n FAC
3.
4.
65 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. Rubus armeniacus (Himalayan blackberry) 20 y FAC
2. Rubus laciniatus (cutleaf blackberry) 5 n FACU
3. Rubus ursinus (california dewberry) 5 n FACU
4. Corylus cornuta (beaked hazelnut) 5 n FACU
5.
35 = Total Cover
Herb Stratum (Plot size: 1 m)
1. Poa pratensis (Kentucky bluegrass) 20 y FAC
2. Phalaris arundinacea (reed canarygrass) 15 y FACW
3. Juncus effusus (Lamp rush) 10 n FACW
4. Polystichum munitum (Sword fern) 10 n FACU
5. Glyceria elata (tall mannagrass) 1 n OBL
6.
7.
8.
9.
10.
11.
56 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. 0 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 44
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 (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species 1 x 1 = 1
FACW species 25 x 2 = 50
FAC species 105 x 3 = 315
FACU species 25 x 4 = 100
UPL species 0 x 5 = 0
Column Totals: 156 (A) 465 (B)
Prevalence Index = B/A = 2.98
Hydrophytic Vegetation Indicators:
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 3
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
0-5 2.5Y 4/2 90 10YR 4/4 10 c m SL
5-14 5Y 5/2 80 10YR 3/6 20 c m VFS Very Fine Sand
14+ Compact, refusal
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydr ic Soil Present? Yes No
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches): 7"
Saturation Present? Yes No Depth (inches): 4"
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: Water is surficial. Result of runoff from recent rain.
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 4
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Convex Slope (%): 50
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.486178 Long: -122.175108 Datum: WGS84
Soil Map Unit Name: PITS NWI classification: None
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation yes, Soil yes, or Hydrology yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks:
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. Populus balsamifera (Black Cottonwood) 60 y FAC
2. Pseudotsuga menziesii (Douglas-fir) 5 n FACU
3.
4.
65 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. Rubus armeniacus (Himalayan blackberry) 40 y FAC
2.
3.
4.
5.
40 = Total Cover
Herb Stratum (Plot size: 1 m)
1. Equisetum telmateia (giant horsetail) 30 y FACW
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
30 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. None 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 70
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% (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species 0 x 1 = 0
FACW species 30 x 2 = 60
FAC species 100 x 3 = 300
FACU species 0 x 4 = 0
UPL species 0 x 5 = 0
Column Totals: 130 (A) 360 (B)
Prevalence Index = B/A = 2.76
Hydrophytic Vegetation Indicators:
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 4
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
0-7 2.5Y2.5/1 100 GrSL cobbles 2-5" in diameter
7-16+ 2.5Y 3/2 100 GrSL cobbles 2-5" in diameter
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches):
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: no signs of hydrology
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 5
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Concave Slope (%): 45
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.486387 Long: -122.175053 Datum: WGS84
Soil Map Unit Name: PITS NWI classification: None
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation yes, Soil yes, or Hydrology yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: Sample plot located on eastern edge of property at the top of the hill along the fence. Sample plot is ~15' west of fence (down slope)
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. Pseudotsuga menziesii (Douglas-fir) 10 y FACU
2.
3.
4.
10 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. Rubus armeniacus (Himalayan blackberry) 20 y FAC
2. Corylus cornuta (beaked hazelnut) 10 n FACU
3.
4.
5.
30 = Total Cover
Herb Stratum (Plot size: 1 m)
1. None 0
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
0 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. None 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 100
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: 1 (A)
Total Number of Dominant
Species Across All Strata: 2 (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: 50% (A/B)
Prevalence Index worksheet:
Total % Cover of: Multiply by:
OBL species 0 x 1 = 0
FACW species 0 x 2 = 0
FAC species 20 x 3 = 60
FACU species 10 x 4 = 40
UPL species 0 x 5 = 0
Column Totals: 30 (A) 100 (B)
Prevalence Index = B/A = 3.00
Hydrophytic Vegetation Indicators:
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 5
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
0-16+ 2.5Y3/2 100 GrSL very sandy. cobbles 2-5" in diameter
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks: no redox/other indicators
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches):
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: no signs of hydrology
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
WETLAND DETERMINATION DATA FORM – Western Mountains, Valleys, and Coast Region
Project/Site: Upper Balch Pit City/County: Renton/King County Sampling Date:1/3/2019
Applicant/Owner: Segale Properties, Inc. State: WA Sampling Point: SP 6
Investigator(s): A. Clark & A. Rossi Section, Township, Range: S16, T23N, R5E, W.M.
Landform (hillslope, terrace, etc.): Slope Local relief (concave, convex, none): Convex Slope (%): 2-5%
Subregion (LRR): Northwest Forests & Coasts (LRR A) Lat: 47.485608 Long: -122.176838 Datum: WGS84
Soil Map Unit Name: PITS NWI classification: PABFh
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation yes, Soil yes, or Hydrology yes 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
Hydric Soil Present? Yes No
Wetland Hydrology Present? Yes No
Is the Sampled Area
within a Wetland? Yes No
Remarks: Sample plot located towarsd the southwest corner of the project site, on the south side of a large gravel pile
VEGETATION – Use scientific names of plants.
Absolute Dominant Indicator
Tree Stratum (Plot size: 5 m) % Cover Species? Status
1. None 0
2.
3.
4.
0 = Total Cover
Sapling/Shrub Stratum (Plot size: 3 m)
1. None 0
2.
3.
4.
5.
0 = Total Cover
Herb Stratum (Plot size: 1 m)
1. Unknown herbs 50 y unk
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
50 = Total Cover
Woody Vine Stratum (Plot size: 3 m)
1. 0
2.
0 = Total Cover
% Bare Ground in Herb Stratum 50
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC: (A)
Total Number of Dominant
Species Across All Strata: (B)
Percent of Dominant Species
That Are OBL, FACW, or FAC: (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
2 - Dominance Test is >50%
3 - Prevalence Index is ≤3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
5 - Wetland Non-Vascular Plants1
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Hydrophytic
Vegetation
Present? Yes No
Remarks: unknown herbs (not wetland)
US Army Corps of Engineers Western Mountains, Valleys, and Coast – Version 2.0
SOIL Sampling Point: SP 6
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
0-3 2.5y4/2 100 S no redox
3+ very hard. refusal. feels like cement
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:
Histosol (A1) Sandy Redox (S5) 2 cm Muck (A10)
Histic Epipedon (A2) Stripped Matrix (S6) Red Parent Material (TF2)
Black Histic (A3) Loamy Mucky Mineral (F1) (except MLRA 1) Very Shallow Dark Surface (TF12)
Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Other (Explain in Remarks)
Depleted Below Dark Surface (A11) Depleted Matrix (F3)
Thick Dark Surface (A12) Redox Dark Surface (F6) 3Indicators of hydrophytic vegetation and
Sandy Mucky Mineral (S1) Depleted Dark Surface (F7) wetland hydrology must be present,
Sandy Gleyed Matrix (S4) Redox Depressions (F8) unless disturbed or problematic.
Restrictive Layer (if present):
Type:
Depth (inches):
Hydric Soil Present? Yes No
Remarks: no indicators present
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (2 or more required)
Surface Water (A1) Water-Stained Leaves (B9) (except MLRA Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2) 1, 2, 4A, and 4B) 4A, and 4B)
Saturation (A3) Salt Crust (B11) Drainage Patterns (B10)
Water Marks (B1) Aquatic Invertebrates (B13) Dry-Season Water Table (C2)
Sediment Deposits (B2) Hydrogen Sulfide Odor (C1) Saturation Visible on Aerial Imagery (C9)
Drift Deposits (B3) Oxidized Rhizospheres along Living Roots (C3) Geomorphic Position (D2)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Shallow Aquitard (D3)
Iron Deposits (B5) Recent Iron Reduction in Tilled Soils (C6) FAC-Neutral Test (D5)
Surface Soil Cracks (B6) Stunted or Stressed Plants (D1) (LRR A) Raised Ant Mounds (D6) (LRR A)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) Frost-Heave Hummocks (D7)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present? Yes No Depth (inches):
Water Table Present? Yes No Depth (inches):
Saturation Present? Yes No Depth (inches):
(includes capillary fringe)
Wetland Hydrology Present? Yes No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks: no signs of hydrology