HomeMy WebLinkAbout5-2 Bozeman Gateway Wetlands Memo Phase 4 2019-09-24
Bozeman Gateway Phase 4
Wetland Delineation - September 2019
Bozeman, Montana
Prepared for:
Mitchell Development Group
PO Box 783
Great Falls, MT 59403
Prepared by:
2880 Technology Boulevard West
Bozeman, MT 59718
September 2019
Project No. 3638.009
Bozeman Gateway Phase 4
Wetland Delineation
i
Table of Contents
1 Introduction ......................................................................................................................... 1
2 Methods .............................................................................................................................. 1
2.1 Vegetation ................................................................................................................... 1
2.2 Soil .............................................................................................................................. 1
2.3 Hydrology .................................................................................................................... 2
3 Results ................................................................................................................................ 2
3.1 Vegetation ................................................................................................................... 2
3.2 Soil .............................................................................................................................. 2
3.3 Hydrology .................................................................................................................... 2
3.3.1 Topography .......................................................................................................... 2
3.3.2 National Wetland Inventory ................................................................................... 3
3.3.3 Floodplains ........................................................................................................... 3
4 Conclusions ........................................................................................................................ 3
5 References ......................................................................................................................... 4
Tables
Table 1 – Wetland Delineation Results
Appendices
Appendix A Figures
Appendix B USACE Wetland Determination Forms
Appendix C Site Photographs
Bozeman Gateway Phase 4
Wetland Delineation
ES-1
EXECUTIVE SUMMARY
A wetland delineation was performed by Morrison-Maierle, Inc. (Morrison-Maierle) for Mitchell
Development Group (Client) on the Bozeman Gateway project. The project area consists of
Phase 4 of the Bozeman Gateway Development between West Garfield Street and Harmon
Stream Blvd. in Bozeman, Montana (Appendix A, Figure 1).
The subject property was evaluated for its content of potential jurisdictional wetlands and
waterbodies, based on criteria set forth in the 2010 Regional Supplement to the Corps of
Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version
2.0) (Environmental Laboratory 2010).
Prior to the site visit, Morrison-Maierle reviewed existing project area literature including historical
aerial photography, topographic maps, and hydrology data. A subsequent field evaluation was
performed to identify hydric soils, hydrology, and hydrophytic vegetation. Vegetation communities
were evaluated and documented to delineate wetland and upland boundaries.
Based on the wetland delineation presented in this report and the data collected, it is Morrison-
Maierle’s professional judgement that no waters of the U.S. were present within the project area.
The U.S. Army Corps of Engineers (USACE) and the U.S. Environmental Protection Agency
(EPA) are the final authority over the jurisdictional status of both wetlands and waters of the U.S.
per Section 404 of the Clean Water Act. The findings discussed in this report are solely the
opinion of Morrison-Maierle and have not been verified by the aforementioned regulatory
government agencies.
Bozeman Gateway Phase 4
Wetland Delineation
Page 1
1 Introduction
At the request of the Client, Morrison-Maierle completed a wetland delineation on the Bozeman
Gateway Phase 4 project. The project area covered approximately 15 acres of land between West
Garfield Street and Harmon Stream Blvd. in Bozeman, Montana (Appendix A, Figure 1). This
technical report summarizes the findings of the wetland delineation.
2 Methods
This wetland delineation utilized the methodology presented in the 1987 U.S. Army Corps of
Engineers (USACE) Wetlands Delineation Manual (Environmental Laboratory 1987) and
subsequent modifications outlined in the Regional Supplement to the Corps of Engineers Wetland
Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0) (Environmental
Laboratory 2010). The methodology includes sampling procedures for vegetation, hydrology, and
soil parameters.
Upland data points (UDP) and wetland data points (WDP) were established as needed during the
field visit. Sample data points were labeled with an UDP or WDP, followed by the number
associated with the data point, (e.g. noted here in bold (UDP 1) to correspond to the sample points
for that location. Data for vegetation, hydrology, and soils were recorded in the field and entered
on Wetland Determination Data Forms. Corresponding photographs were taken at each data
point.
Sample points and wetland boundaries (if present) were recorded using a Trimble® Geo 7X™
Global Positioning System (GPS) unit and post-processed to sub-meter accuracy. Locations were
then converted to shapefiles uploaded into ArcMap 10.6.1 for display on figures included in
Appendix A.
2.1 Vegetation
Vegetation at upland and wetland data points was classified based on its wetland indicator status
derived from the Montana 2016 State Wetland Plant List (Lichvar et al. 2016). Using the current
plant list, vegetation cover qualifies as hydrophytic when over 50% of the dominant plant species
have an indicator status of obligate (OBL), facultative wet (FACW), and/or facultative (FAC). FAC
plants, such as Canada thistle (Cirsium arvense), are equally likely to occur in wetlands and non-
wetlands. Vegetation cover was considered as upland where over 50% of the dominant plant
species were classified as upland (UPL), and/or facultative upland (FACU). Plants observed
within each data plot were identified using Montana Manual of Vascular Plants (Lesica 2012)
along with other reference books. Vegetation nomenclature follows Lichvar et al. (2016) and
Lesica (2012).
2.2 Soil
Wetlands must meet the qualifications of at least one hydric soil indicator, or meet the definition
of a hydric soil (a soil that formed under conditions of saturation, flooding or ponding long enough
during the growing season to develop anaerobic conditions in the upper part (NRCS 2019a)).
Soils at each data point were evaluated and described notating the depth, matrix color, mottle
abundance and contrast (if present), texture, etc. (Environmental Laboratory, 1987 and 2010).
Bozeman Gateway Phase 4
Wetland Delineation
Page 2
Moist matrix color and moist mottle color of the soils were determined utilizing the Munsell Soil
Color Chart (Kollmorgan Instruments Corporation, 2009).
2.3 Hydrology
Primary and secondary hydrologic indicators were assessed at each wetland and upland data
point; one primary indicator or two secondary indicators are required to qualify the area as
containing wetland hydrology. Examples of primary hydrology indicators are saturation within 12
inches of the ground surface, surface water, and water table within 12 inches of the ground
surface. Examples of secondary hydrology indicators are FAC-neutral test and geomorphic
position on the landscape.
3 Results
A wetland delineation of the project area was performed by Morrison-Maierle environmental
scientists on August 1, 2019. The vegetation, hydrology, and soil characteristics at each of 2 data
points were documented in the field and recorded on Wetland Determination Data Forms for the
Western Mountains, Valleys, and Coast Region (Supplement, 2010).
3.1 Vegetation
Vegetation communities were evaluated and documented to delineate wetland and upland
boundaries. The majority of the project area consists of disturbed vegetation from surrounding
commercial development. The northeast corner of the project area consists of a completed
stormwater swale with planted grass. No wetland plant communities existed within the
investigation area. Upland plants observed included: hoary alyssum (Berteroa incana, NI),
orchard grass (Dactylis glomerata, FACU), foxtail barley (Hordeum jubatum, FAC), timothy
(Phleum pretense, FAC), and mowed and irrigated lawn grass. The investigation area consisted
of disturbed areas for construction of nearby facilities and a drainage swale that no longer receives
a direct source of water. The location of all data points are identified on Figure 5 of Appendix A.
3.2 Soil
Mapped soil types within the project area were obtained from the Web Soil Survey (NRCS 2019b).
One mapped soil was identified in the project area: Meadowcreek loam, 0 to 4 percent slopes
(510B) (Appendix A, Figure 3).
Soils were analyzed in the field for texture and color using the Munsell Soil Color Charts (Munsell
2009). Soils within the investigation area exhibited a 10YR 2/1 (black) loam matrix. No redox was
observed, no water table was encountered.
3.3 Hydrology
3.3.1 Topography
The project area lies within the Bozeman, Montana (2017), U.S. Geological Survey (USGS) 7.5-
minute Topographic Map. The project area is shown to be gently sloping to flat with elevations at
approximately 4,865 feet above sea level (Appendix A, Figure 1). Additionally, a canal is shown
to intersect the north end of the project area. During the site evaluation, the elevation and slope
of the project area appeared to be consistent with the USGS topographic map. The canal
Bozeman Gateway Phase 4
Wetland Delineation
Page 3
(Farmers Canal) has been rerouted due to commercial development and no longer traverses the
project area.
The EPA National Hydrography Dataset Plus (NHDPlus) was referenced to identify waterbodies
within and near the project area (EPA 2019). The nearest surface water feature to the project
area is the West Gallatin Canal approximately 700 feet to the west.
3.3.2 National Wetland Inventory
The U.S. Fish and Wildlife Service maintains the National Wetlands Inventory (NWI), which serves
as a publicly available resource that provides detailed information on the abundance,
characteristics, and distribution of U.S. wetlands. According to the NWI database, two riverine
features (R4SBCx and R3UBFx) and one freshwater emergent wetland (PEM1A) features are
located in the project area (USFWS 2019). Appendix A, Figure 4 depicts the NWI features in the
project vicinity.
The site evaluation included an investigation of the areas shown as NWI features. The project
area has been significantly disturbed since at least 2006 from surrounding commercial
development. The riverine features (Farmers Canal) were re-routed around that time, cutting off
any steady source of water that was once provided to the riverine and wetland features. The
wetland feature is now a drainage swale that only receives occasional stormwater runoff form
surrounding parking areas and streets. This swale did not meet characteristics of a water of the
U.S.
3.3.3 Floodplains
The project area is located within the Federal Emergency Management Agency (FEMA) Flood
Insurance Rate Map (FIRM) panel 30031C0812D, effective September 2, 2011. The project area
lies within an unprinted panel, therefore there is no flood plain data available (FEMA 2019).
4 Conclusions
Based on the results of the wetland delineation performed according to USACE guidelines, it is
Morrison-Maierle’s professional judgement that no waters of the U.S. are located within the project
area.
Bozeman Gateway Phase 4
Wetland Delineation
Page 4
5 References
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. FWS/OBS-79/31. US Fish and Wildlife Service. Washington, D.C.
Environmental Laboratory. 1987. Corps of Engineers Wetland Delineation Manual. Technical Report Y-87-1, U.S. Army Engineer Waterways Experiment Station. Vicksburg, MS.
Environmental Laboratory. 2010. Regional Supplement to the Corp of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region. (Version 2.0) U.S. Army Engineer Research and Development Center, Environmental Laboratory. Vicksburg, MS. Environmental Protection Agency (EPA). National Hydrography Dataset Plus. 2019. https://www.epa.gov/waterdata/nhdplus-national-hydrography-dataset-plus Federal Emergency Management Administration (FEMA). 2019. FEMA Flood Map Service Center. https://msc.fema.gov/portal/home
Kollmorgan Instruments Corporation. 2009. Munsell Soil Color Charts. Macbeth Division, New Windsor, NY.
Lesica, P. 2012. Manual of Montana Vascular Plants. Brit Press. Fort Worth, Texas. Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant
List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X. Natural Resources Conservation Service (NRCS). 2019a. Hydric Soils Definition.
http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/use/hydric/?cid=nrcs142p2_053961
Natural Resources Conservation Service (NRCS). 2019b. Web Soil Survey. https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. US Fish and Wildlife Service (USFWS) 2019. National Wetland Inventory Wetlands Mapper. https://www.fws.gov/wetlands/data/mapper.html U.S. Geological Survey. 2017. Bozeman, Montana, 7.5-minute Series Topographic Quadrangle
Map.
APPENDIX A: FIGURES
MT
COPYRIGHT MORRISON-MAIERLE, INC., 2019N:\3638\009\GIS\2019 WD Figures\Phase 4 Maps\Fig 1_Topo Map.mxd
FIGURE NO.
PROJECT NO.
3638.009
1
2880 Technology Blvd. W.Bozeman, MT 59718
Phone: (406) 587-0721Fax: (406) 922-6702 9/9/2019
Legend
Phase 4 Parcel ±0 1,200 2,400600Feet
VICINITY MAPGALLATIN COUNTY
DRAWN BY: BC CHK'D BY: CP APPR. BY: CP DATE:
Gallatin County, MontanaSection 14, Township 02 South, Range 05 EastMinor Sub 195A, Lot 2A024Miles
Bozeman Gateway Phase 4 Wetland Delineation
MT
COPYRIGHT MORRISON-MAIERLE, INC., 2019N:\3638\009\GIS\2019 WD Figures\Phase 4 Maps\Fig 2_Aerial Map.mxd
FIGURE NO.
PROJECT NO.
3638.009
2
2880 Technology Blvd. W.Bozeman, MT 59718
Phone: (406) 587-0721Fax: (406) 922-6702 9/9/2019
Legend
Phase 4 Parcel ±0 200 400100Feet
AERIAL MAPGALLATIN COUNTY
DRAWN BY: BC CHK'D BY: CP APPR. BY: CP DATE: Bozeman Gateway Phase 4 Wetland Delineation
510B
457A
MT
COPYRIGHT MORRISON-MAIERLE, INC., 2019N:\3638\009\GIS\2019 WD Figures\Phase 4 Maps\Fig 3_Soils Map.mxd
FIGURE NO.
PROJECT NO.
3638.009
3
2880 Technology Blvd. W.Bozeman, MT 59718
Phone: (406) 587-0721Fax: (406) 922-6702 9/9/2019
Legend
Phase 4 Parcel
NRCS Soil Map Unit ±0 200 400100Feet
NRCS SOILS MAPGALLATIN COUNTY
DRAWN BY: BC CHK'D BY: CP APPR. BY: CP DATE: Bozeman Gateway Phase 4 Wetland Delineation
MT
COPYRIGHT MORRISON-MAIERLE, INC., 2019N:\3638\009\GIS\2019 WD Figures\Phase 4 Maps\Fig 4_NWI Map.mxd
FIGURE NO.
PROJECT NO.
3638.009
4
2880 Technology Blvd. W.Bozeman, MT 59718
Phone: (406) 587-0721Fax: (406) 922-6702 9/9/2019
Legend
Phase 4 Parcel
Freshwater Emergent Wetland
Freshwater Forested/Shrub Wetland
Riverine ±0 200 400100Feet
NATIONAL WETLANDS INVENTORY MAPGALLATIN COUNTY
DRAWN BY: BC CHK'D BY: CP APPR. BY: CP DATE: Bozeman Gateway Phase 4 Wetland Delineation
MT
COPYRIGHT MORRISON-MAIERLE, INC., 2019N:\3638\009\GIS\2019 WD Figures\Phase 4 Maps\Fig 5_WD Map.mxd
FIGURE NO.
PROJECT NO.
3638.009
5
2880 Technology Blvd. W.Bozeman, MT 59718
Phone: (406) 587-0721Fax: (406) 922-6702 9/9/2019
Legend
Phase 4 Parcel
Upland Data Points ±0 200 400100Feet
WETLAND DELINEATION MAPGALLATIN COUNTY
DRAWN BY: BC CHK'D BY: CP APPR. BY: CP DATE: Bozeman Gateway Phase 4 Wetland Delineation
UDP1
UDP2
APPENDIX B: USACE WETLAND DETERMINATION FORMS
Project Site:City/County:Sampling Date:8/2/2019
Applicant/Owner: Mitchell Development Group State:Montana Sampling Point:UDP 1
Investigator(s):B. Carr, C. Pearcy Section/Range:Slope (%):0 - 5
Landform (hillslope, terrace, etc.): Plain flat Datum:NAD83 SP MT
Subregion (LRR or MLRA):Northern Rocky Mountain Valleys Lat: 45.6695047 Long:111.077353
Soil Map Unit Name:Meadowcreek loam, 0 to 4 percent slopes PEMA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil Hydrology x significantly disturbed?
Are Vegetation Soil Hydrology naturally problematic?(If needed, explain any answers in Remarks)
Are "Normal Circumstances" present?Yes X No
SUMMARY OF FINDINGS- Attach site map showing sampling point locations, transects, important features, ect.
Hydrophytic Vegetation Present?Yes No X
Yes No X Yes
Yes No X No X
Wetland Hydrology Indicators:
Primary Indicators (minimum of one is required: check all that apply)Secondary Indicators (minimum of two required)
Surface Water (A1)Water-Stained Leaves (B9) (except Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2)MLRA 1, 2, 4A, an d4B)4A, an d4B)
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) (LRR F)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present?Yes No X Depth (inches)
Water Table Present?Yes No X Depth (inches)Wetland Hydrology Present?
Saturation Present?Yes No X Depth (inches)Yes
(includes cappillary fringe)No X
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Morrison-Maierle, Inc.
Bozeman Gateway Project Gallatin
Local relief (concave, convex, none):
NWI classification:
S14, T2 S, R5 E
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?Wetland Hydrology Present?
Hydric Soils Present?
Remarks: historic irrigation ditches were re-routed over 15 years ago
HYDROLOGY
Remarks: Hydrologic indicators were not observed at this location.
Vegetation- Use scientific names of plants Montana UDP 1
Absolute %
Cover
Dominant
Species?
Indicator
Status Dominance Test Worksheet:
1 90 Number of Dominant Species 0 (A)
2 5 That Are OBL, FACW, or FAC:
3
4 Total Number of Dominant 1 (B)
5 Species Across All Strata:
6
7 Percent of Dominant Species 0%(A/B)
Total Cover 95 That Are OBL, FACW, or FAC:
Absolute %
Cover
Dominant
Species?
Indicator
Status Prevalance Index Worksheet:
1
2 OBL species 0 x 1 =0
3 FACW species 0 x 2 =0
4 FAC species 0 x 3 =0
5 FACU species 0 x 4 =0
6 UPL species 0 x 5 =0
7 Column Totals:0 (A) (B)0
Total Cover 0 Prevalence Index = B/A =0
Absolute %
Cover
Dominant
Species?
Indicator
Status Hydrophytic Vegetation Indicators:
1 Rapid Test for Hydrophytic Vegetation
2 Dominance Test is >50%
3 Prevalence Index < 3.01
4 Morphological Adaptation1 (Provide supporting data)
5 Wetland Non-Vascular Plants1
6 Problematic Hydrophytic Vegetation1 (Explain)
7 1Indicators of hydric soil and wetland hydrology must be present.
Total Cover 0 Definitions for Four Vegetation Strata:
Absolute %
Cover
Dominant
Species?
Indicator
Status Tree - Woody plants, excluding vines, 3 inches or more
1 100 YES #N/A in diameter at breast height (DBH), regardless of
2 height
3
4 Sapling/Shrub - Woody plants, excluding vines less
5 than 3 inch DBH and greater than 1 meter tall.
6
7 Herb - All herbaceous (non-woody) plants, regardless
8 of size, and wood plants less than 1 meter tall.
9
10 Woody vine - All woody vines greater than 1 meter in
11 height.
12
Total Cover 100
Absolute %
Cover
Dominant
Species?
Indicator
Status
1
2
3 X
4 YES NO
5
Total Cover 0
Shrub Stratum (30')
Herb Stratum (30')
Remarks: (If observed, list morphological adaptations below) Hydrophytic vegetation was not observed at this location.
Woody Vine Stratum (30')
Sapling Stratum (30')
lawn grass (mowed short and irrigated)
Tree Stratum (Plot Sizes: 30')
Hydrophytic Vegetation Present?
Total % Cover of:Multiply by:
SOIL
Profile Desription: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)Montana UDP 1
Depth
(inches) % % Type1 Loc2 Texture
0-18 100 loam
1Type: C= Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, M=Matrix
Hydric Soil Indicators: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)
Sandy Mucky Mineral (S1) (LRR O, S)Depleted Dark Surface (F7)
Sandy Gleyed Matrix (S4)Redox Depressions (F8)
Restrictive Layer (if observed):
Yes No X
3Indicators of hydrolophytic vegetation and wetland
hydrology must be present.
Type:
Depth (inches):
Remarks: Hydric soil indicators were not observed at this location.
Remarks Color (moist)
10YR 2/1
Color (moist)
Redox Fetures
Hydric Soil Present?
Matrix
Project Site:City/County:Sampling Date:8/2/2019
Applicant/Owner: Mitchell Development Group State:Montana Sampling Point:UDP 2
Investigator(s):B. Carr, C. Pearcy Section/Range:Slope (%):0 - 5
Landform (hillslope, terrace, etc.): Plain flat Datum:NAD83 SP MT
Subregion (LRR or MLRA):Northern Rocky Mountain Valleys Lat: 45.6695047 Long:111.077353
Soil Map Unit Name:Meadowcreek loam, 0 to 4 percent slopes PEMA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil Hydrology x significantly disturbed?
Are Vegetation Soil Hydrology naturally problematic?(If needed, explain any answers in Remarks)
Are "Normal Circumstances" present?Yes X No
SUMMARY OF FINDINGS- Attach site map showing sampling point locations, transects, important features, ect.
Hydrophytic Vegetation Present?Yes No X
Yes No X Yes
Yes No X No X
Wetland Hydrology Indicators:
Primary Indicators (minimum of one is required: check all that apply)Secondary Indicators (minimum of two required)
Surface Water (A1)Water-Stained Leaves (B9) (except Water-Stained Leaves (B9) (MLRA 1, 2,
High Water Table (A2)MLRA 1, 2, 4A, an d4B)4A, an d4B)
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) (LRR F)
Sparsely Vegetated Concave Surface (B8)
Field Observations:
Surface Water Present?Yes No X Depth (inches)
Water Table Present?Yes No X Depth (inches)Wetland Hydrology Present?
Saturation Present?Yes No X Depth (inches)Yes
(includes cappillary fringe)No X
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Wetland Hydrology Present?
Hydric Soils Present?
Remarks: historic irrigation ditches were re-routed over 15 years ago
HYDROLOGY
Remarks: Hydrologic indicators were not observed at this location.
Morrison-Maierle, Inc.
Bozeman Gateway Project Gallatin
Local relief (concave, convex, none):
NWI classification:
S14, T2 S, R5 E
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?
Vegetation- Use scientific names of plants Montana UDP 2
Absolute %
Cover
Dominant
Species?
Indicator
Status Dominance Test Worksheet:
1 90 Number of Dominant Species 0 (A)
2 5 That Are OBL, FACW, or FAC:
3
4 Total Number of Dominant 1 (B)
5 Species Across All Strata:
6
7 Percent of Dominant Species 0%(A/B)
Total Cover 95 That Are OBL, FACW, or FAC:
Absolute %
Cover
Dominant
Species?
Indicator
Status Prevalance Index Worksheet:
1
2 OBL species 0 x 1 =0
3 FACW species 0 x 2 =0
4 FAC species 20 x 3 =60
5 FACU species 60 x 4 =240
6 UPL species 0 x 5 =0
7 Column Totals:80 (A) (B)300
Total Cover 0 Prevalence Index = B/A =4
Absolute %
Cover
Dominant
Species?
Indicator
Status Hydrophytic Vegetation Indicators:
1 Rapid Test for Hydrophytic Vegetation
2 Dominance Test is >50%
3 Prevalence Index < 3.01
4 Morphological Adaptation1 (Provide supporting data)
5 Wetland Non-Vascular Plants1
6 Problematic Hydrophytic Vegetation1 (Explain)
7 1Indicators of hydric soil and wetland hydrology must be present.
Total Cover 0 Definitions for Four Vegetation Strata:
Absolute %
Cover
Dominant
Species?
Indicator
Status Tree - Woody plants, excluding vines, 3 inches or more
1 60 YES FACU in diameter at breast height (DBH), regardless of
2 10 NO FAC height
3 10 NO FAC
4 Sapling/Shrub - Woody plants, excluding vines less
5 than 3 inch DBH and greater than 1 meter tall.
6
7 Herb - All herbaceous (non-woody) plants, regardless
8 of size, and wood plants less than 1 meter tall.
9
10 Woody vine - All woody vines greater than 1 meter in
11 height.
12
Total Cover 80
Absolute %
Cover
Dominant
Species?
Indicator
Status
1
2
3 X
4 YES NO
5
Total Cover 0
Hydrophytic Vegetation Present?
Total % Cover of:Multiply by:
Hordeum jubatum
Phleum pratense
Tree Stratum (Plot Sizes: 30')
Sapling Stratum (30')
Dactylis glomerata
Shrub Stratum (30')
Herb Stratum (30')
Remarks: (If observed, list morphological adaptations below) Hydrophytic vegetation was not observed at this location.
Woody Vine Stratum (30')
SOIL
Profile Desription: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)Montana UDP 2
Depth
(inches) % % Type1 Loc2 Texture
0-18 100 loam
1Type: C= Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, M=Matrix
Hydric Soil Indicators: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)
Sandy Mucky Mineral (S1) (LRR O, S)Depleted Dark Surface (F7)
Sandy Gleyed Matrix (S4)Redox Depressions (F8)
Restrictive Layer (if observed):
Yes No X
Hydric Soil Present?
Matrix
Color (moist)
Redox Fetures
10YR 2/1
Type:
Depth (inches):
Remarks: Hydric soil indicators were not observed at this location.
Remarks Color (moist)
3Indicators of hydrolophytic vegetation and wetland
hydrology must be present.
APPENDIX C: SITE PHOTOGRAPHS
Bozeman Gateway Phase 4 Wetland Delineation
August 1, 2019
Photo 1: Stormwater Swale in the northeast corner of the project area (South
view)
Photo 2: Stormwater Swale (North view)
Photo 4: Irrigation swale and disturbed vegetation (North view)
Photo 3: Irrigation swale that no longer receives a steady source of
water (South view)
Photo 5: Irrigation swale and disturbed vegetation (South view)
Photo 6: Irrigation swale (Northwest view)