HomeMy WebLinkAbout01 - Surface Water - Wetland Baxter Lane UpdateAddendum to the Northwest Crossing Subdivision Wetland Delineation
Baxter Road ROW Ditch Delineation
June 24, 2020
On June 22, 2020, Morrison Maierle, Inc. (MMI) delineated a roadside ditch for wetlands and
waterways. This roadside ditch is located on the south side of East Baxter Road north of the
Northwest Crossing Subdivision. The delineation resulted in the identification of 0.457 acre of
emergent wetland. This data serves as an addendum to the Northwest Crossing Subdivision
Wetland Delineation Report (MMI 2018/2020).
1 INTRODUCTION
Morrison-Maierle, Inc. (Morrison-Maierle) completed a wetland delineation for the roadside ditch
located on the south side of East Baxter Road, north of the Northwest Crossing Subdivision. This
technical memo summarizes the findings of the wetland investigation.
The wetland investigation was completed on June 22, 2020. This data serves as an addendum
to the Northwest Crossing Subdivision Wetland Delineation Report (MMI 2018/2020). The project
is located at approximately latitude 45.700096°, longitude -111.110549°. Appendix A the location
of the delineated feature on the updated Preliminary Plan map for the Northwest Crossing
Subdivision.
2 METHODS
The wetland investigation 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).
Data points (DP) were established as needed during the field visit. Sample data points were
labeled with a DP, followed by the number associated with the data point, (e.g. noted here in bold
(DP 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 located in
Appendix B. Photographs of all sample points are provided in Appendix C.
Sample points and wetland boundaries (if present) were recorded by a professional land surveyor.
Locations were then converted to shapefiles uploaded to AutoCAD for display on the Preliminary
Plat Map for the Northwest Crossing Subdivision located in Appendix A.
2.1 Vegetation
Vegetation at upland and wetland data points was classified based on wetland indicator status.
The indicator status of vegetation was derived from the Montana 2018 State Wetland Plant List
(Lichvar et al. 2018). Using the current plant list, vegetation cover qualified as hydrophytic where
over 50% of the dominant plant species had 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). Vegetation nomenclature follows Lichvar et al. (2018) 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).
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 June 22, 2020. The vegetation, hydrology, and soil characteristics at each of four
data points were documented in the field and recorded on Wetland Determination Data Forms for
the Western Mountains, Valleys, and Coast Region (Supplement, 2010). One wetland was
identified within the ditch bottom.
3.1 Vegetation
Vegetation communities were evaluated and documented to delineate wetland and upland
boundaries. The project area consisted of a previous right-of-way cleared of trees and shrubs for
a water main, a perennial stream, and forested communities on either side of the right-of-way.
The upland areas within the roadside ditch were dominated by field horsetail (Equisetum arvense,
FAC), smooth brome (Bromus inermis, UPL), sticky willy (Galium aparine, FACU), Canada thistle
(Cirsium arvense, FAC) and common dandelion (Taraxacum officinale, FACU). The vegetation in
the wetland ditch bottom consisted of cattail (Typha latifolia, OBL) and meadow foxtail
(Alopecurus pratensis, FACW).
The location of all data points are identified on the figure provided in Appendix A.
3.2 Soil
Mapped soil types within the project area were obtained from the Web Soil Survey (NRCS 2020).
Five mapped soil type was identified in the project area:
x Amsterdam silt loam, 0 to 4 percent slopes (53B)
x Quagle-Brodyk silt loams, 4 to 8 percent slopes (451C)
x Enbar loam, 0 to 4 percent slopes (509B)
x Meadowcreek loam, 0 to 4 percent slopes (510B)
x Lamoose silt loam, 0 to 2 percent slopes (537A)
Soils were analyzed in the field for texture and color using the Munsell Soil Color Charts (Munsell
2009). It should be noted that the investigation area is a roadside ditch and soils have likely been
excavated and original soil conditions have been altered.
Soils within the wetland area exhibited an one-inch layer of road mix and then 8 inches of 10YR
2/1 clay loam with 10YR 4/2 intermixed. Below eight inches, the soil was gravel/rock. It is believed
that the soil within the wetland area meets the characteristics of Redox Dark Surface (F6), but
investigator was unable to dig deep enough due to gravel confining layer. Soil was saturated at
the surface and surface water was present within most of the wetland area.
Soil within the upland areas consisted of a 10YR 3/2 clay loam matrix with intermixed organics
and roots.
3.3 Hydrology
3.3.1 Topography
The roadside ditch does not appear on regional USGS topographic maps.
3.3.2 National Wetland Inventory
The US 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 US Wetlands. The NWI database does not indicate an aquatic
feature at the investigation area.
3.3.3 Local Hydrology
The ditch receives water from both Baxter Ditch and Baxter Creek. Some of the flow from these
waterways enters culverts on the north side of the ditch and continues to flow below East Baxter
Road. Some of the water sits in the ditch and eventually seeps in to the ground. The roadside
ditch ends at the east end of the subdivision boundary. The ditch does not maintain year-round
flow and the channel is completely vegetated. This ditch is classified as a wetland and not a
waterway due to the vegetated nature of the channel.
APPENDIX A: Updated Preliminary Plat Map
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APPENDIX B: Wetland Data Forms
Project Site: City/County: Sampling Date: 6/22/2020
Applicant/Owner: Kline State: Montana Sampling Point: WDP 1
Investigator(s): B. Wainright, C. Pearcy Section/Range: Slope (%):0 - 5
Landform (hillslope, terrace, etc.): uDitch concave/ditch Datum: NAD83 SP MT
Subregion (LRR or MLRA): Northern Rocky Mountain Valleys Lat: 45.70008 Long: -111.1064
Soil Map Unit Name: 510B Meadowcreek loam, 0 to 4 percent slopes NA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil x 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 x No
Yes x No Yes X
Yes x No No
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 x No Depth (inches)0
Water Table Present? Yes x No Depth (inches)Wetland Hydrology Present?
Saturation Present? Yes x No Depth (inches)Yes x
(includes cappillary fringe)No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Morrison-Maierle, Inc.
NWX Roadside Ditch Gallatin
Local relief (concave, convex, none):
NWI classification:
Section 4/ Range 5 East
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?Wetland Hydrology Present?
Hydric Soils Present?
Remarks: Roadside ditch
HYDROLOGY
Remarks: Hydrologic indicators were not observed at this location.
Vegetation- Use scientific names of plants Montana WDP 1
Absolute %
Cover
Dominant
Species?
Indicator
Status Dominance Test Worksheet:
1 Number of Dominant Species 2(A)
2 That Are OBL, FACW, or FAC:
3
4 Total Number of Dominant 2 (B)
5 Species Across All Strata:
6
7 Percent of Dominant Species 100% (A/B)
Total Cover 0 That Are OBL, FACW, or FAC:
Absolute %
Cover
Dominant
Species?
Indicator
Status Prevalance Index Worksheet:
1
2 OBL species 50 x 1 =50
3 FACW species 0 x 2 =0
4 FAC species 50 x 3 =150
5 FACU species 0 x 4 =0
6 UPL species 0 x 5 =0
7 Column Totals:100 (A) (B)200
Total Cover 0 Prevalence Index = B/A =2
Absolute %
Cover
Dominant
Species?
Indicator
Status Hydrophytic Vegetation Indicators:
1 Rapid Test for Hydrophytic Vegetation
2 X Dominance Test is >50%
3 X 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 50 YES OBL in diameter at breast height (DBH), regardless of
250YESFACheight
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 %
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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) This is an area where it stopped being 100% cattails and transitioned in to meadow foxtail. I believe
this is an idication of getting drier but it was still a wetland in this location
Woody Vine Stratum (30')
Sapling Stratum (30')
Typha latifolia
Tree Stratum (Plot Sizes: 30')
Hydrophytic Vegetation Present?
Total % Cover of: Multiply by:
Alopecurus pratensis
SOIL
Profile Desription: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)Montana WDP 1
Depth
(inches) % % Type1 Loc2 Texture
0-8 100 muck
8-?gravel
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)x 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)
x 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):
rock
8 Yes X No
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)
Muck saturated and hard to tell
Color (moist)
Redox Fetures
Hydric Soil Present?
Matrix
Project Site: City/County: Sampling Date: 6/22/2020
Applicant/Owner: Kline State: Montana Sampling Point: UDP 1
Investigator(s): B. Wainright, C. Pearcy Section/Range: Slope (%):0 - 5
Landform (hillslope, terrace, etc.): uDitch concave/ditch Datum: NAD83 SP MT
Subregion (LRR or MLRA): Northern Rocky Mountain Valleys Lat: 45.70011 Long: -111.10643
Soil Map Unit Name: 510B Meadowcreek loam, 0 to 4 percent slopes NA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil x 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.
NWX Roadside Ditch Gallatin
Local relief (concave, convex, none):
NWI classification:
Section 4/ Range 5 East
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?Wetland Hydrology Present?
Hydric Soils Present?
Remarks: Roadside, road shoulder
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 Number of Dominant Species 0(A)
2 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 0 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 0 x 4 =0
6 UPL species 70 x 5 =350
7 Column Totals:90 (A) (B)410
Total Cover 0 Prevalence Index = B/A =5
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 70 YES UPL in diameter at breast height (DBH), regardless of
2 10 NO FAC height
310NOFAC
410NO#N/ASapling/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')
Bromus inermis
Tree Stratum (Plot Sizes: 30')
Hydrophytic Vegetation Present?
Total % Cover of: Multiply by:
equisetum arvense
Cirsium arvense
Thinopyrum intermedium
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
0-8 100
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)
gravelly hardpack from roa
Color (moist)
Redox Fetures
Hydric Soil Present?
Matrix
Project Site: City/County: Sampling Date: 6/22/2020
Applicant/Owner: Kline State: Montana Sampling Point: WDP 2
Investigator(s): B. Wainright, C. Pearcy Section/Range: Slope (%):0 - 5
Landform (hillslope, terrace, etc.): uDitch concave/ditch Datum: NAD83 SP MT
Subregion (LRR or MLRA): Northern Rocky Mountain Valleys Lat: 45.70012 Long: -111.104668
Soil Map Unit Name: 53B Amsterdam silt loam, 0 to 4 percent slopes NA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil x 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 x No
Yes x No Yes X
Yes x No No
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 x No Depth (inches)6 Wetland Hydrology Present?
Saturation Present? Yes x No Depth (inches)6 Yes x
(includes cappillary fringe)No
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Morrison-Maierle, Inc.
NWX Roadside Ditch Gallatin
Local relief (concave, convex, none):
NWI classification:
Section 4/ Range 5 East
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?Wetland Hydrology Present?
Hydric Soils Present?
Remarks: Roadside ditch
HYDROLOGY
Remarks: Hydrologic indicators were not observed at this location.
Vegetation- Use scientific names of plants Montana WDP 2
Absolute %
Cover
Dominant
Species?
Indicator
Status Dominance Test Worksheet:
1 Number of Dominant Species 1(A)
2 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 100% (A/B)
Total Cover 0 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 100 x 3 =300
5 FACU species 0 x 4 =0
6 UPL species 0 x 5 =0
7 Column Totals:100 (A) (B)300
Total Cover 0 Prevalence Index = B/A =3
Absolute %
Cover
Dominant
Species?
Indicator
Status Hydrophytic Vegetation Indicators:
1 Rapid Test for Hydrophytic Vegetation
2 X Dominance Test is >50%
3 X 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 in diameter at breast height (DBH), regardless of
2 100 YES FAC 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) Took point on the boundary of where ditch became dry.
Woody Vine Stratum (30')
Sapling Stratum (30')
Tree Stratum (Plot Sizes: 30')
Hydrophytic Vegetation Present?
Total % Cover of: Multiply by:
Alopecurus pratensis
SOIL
Profile Desription: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)Montana WDP 2
Depth
(inches) % % Type1 Loc2 Texture
0-1 100
2-6 100 clay loam
6-12 50 clay loam
6-12 50 clay
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)
x 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):
rock
Yes X No
3Indicators of hydrolophytic vegetation and wetland
hydrology must be present.
Type:
Depth (inches):
Remarks: Hydric soil indicators were not observed at this location.
10YR 2/1
10YR2/1
Remarks Color (moist)
Road mix Road mix
clay inclusions
Color (moist)
10YR4/2
Redox Fetures
Hydric Soil Present?
Matrix
Project Site: City/County: Sampling Date: 6/22/2020
Applicant/Owner: Kline State: Montana Sampling Point: UDP 2
Investigator(s): B. Wainright, C. Pearcy Section/Range: Slope (%):0 - 5
Landform (hillslope, terrace, etc.): uDitch concave/ditch Datum: NAD83 SP MT
Subregion (LRR or MLRA): Northern Rocky Mountain Valleys Lat: 45.70011 Long: -111.104002
Soil Map Unit Name: 53B Amsterdam silt loam, 0 to 4 percent slopes NA
Are climatic/hydrologic conditions on the site typical for this time of year?Yes X No (If no, explain in Remarks)
Are Vegetation Soil x 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.
NWX Roadside Ditch Gallatin
Local relief (concave, convex, none):
NWI classification:
Section 4/ Range 5 East
WETLAND DETERMINATION DATA FORM - Western Mountains, Valleys, and Coast Region
Is the Sample Area within a
Wetland?Wetland Hydrology Present?
Hydric Soils Present?
Remarks: Roadside ditch, likely previously excavated
HYDROLOGY
Remarks: Hydrologic indicators were not observed at this location.
Vegetation- Use scientific names of plants Montana UDP 2
Absolute %
Cover
Dominant
Species?
Indicator
Status Dominance Test Worksheet:
1 Number of Dominant Species 0(A)
2 That Are OBL, FACW, or FAC:
3
4 Total Number of Dominant 2 (B)
5 Species Across All Strata:
6
7 Percent of Dominant Species 0% (A/B)
Total Cover 0 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 10 x 4 =40
6 UPL species 40 x 5 =200
7 Column Totals:70 (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 40 YES UPL in diameter at breast height (DBH), regardless of
210NOFACUheight
310NOFAC
430YES#N/ASapling/Shrub - Woody plants, excluding vines less
5 10 NO FAC 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')
Bromus inermis
Tree Stratum (Plot Sizes: 30')
Hydrophytic Vegetation Present?
Total % Cover of: Multiply by:
Galium aparine
Cirsium arvense
Thinopyrum intermedium
Lepidium latifolium
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
0-8 100 clay 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 3/2 gravel below
Color (moist)
Redox Fetures
Hydric Soil Present?
Matrix
APPENDIX C: Photo Log
Baxter Road ROW Ditch Delineation
June 2020
Photo 1: Ditch wetland/upland boundary
Photo 2: Wetland Pit W-1-20
Baxter Road ROW Ditch Delineation
June 2020
Photo 3: Wetland Pit W-1-20, at the divide between cattails and meadow foxtail
Photo 4: Upland Pit, side of ditch adjacent to Baxter Ditch
Baxter Road ROW Ditch Delineation
June 2020
Photo 5: Upland Pit, eastern portion of ditch.