HomeMy WebLinkAboutMARS LANDING - FDP210024 - SUBMITTAL DOCUMENTS - ROUND 1 - WETLANDS DOCUMENTSW ETLAND D ELINEATION R EPORT
MARS LANDING OFFSITE MITIGATION STUDY AREAS
FORT COLLINS, COLORADO
prepared for:
G OODWIN KNIGHT
8605 EXPLORER DR. SUITE 250, COLORADO SPRINGS, CO 80920
prepared by:
BIRCH ECOLOGY, LLC
429 MAIN STREET, LYONS, CO 80540
B IRCH E COLOGY
MARCH 2020
TABLE OF CONTENTS
Section/Title Page
1.0 INTRODUCTION .................................................................................................................................. 1
2.0 ENVIRONMENTAL SETTING ................................................................................................................ 1
2.1 East Study Area.............................................................................................................................. 1
2.2 West Study Area ............................................................................................................................ 3
3.0 DELINEATION METHODS .................................................................................................................... 4
4.0 WETLANDS ........................................................................................................................................... 4
4.1 East Study Area – Wetland A ...................................................................................................... 4
4.1.1 Location ................................................................................................................................... 4
4.1.2 Classification ........................................................................................................................... 4
4.1.3 Vegetation .............................................................................................................................. 4
4.1.4 Hydrology ................................................................................................................................ 5
4.1.5 Soils ............................................................................................................................................ 5
4.2 West Study Area - Wetland B ...................................................................................................... 6
4.2.1 Location ................................................................................................................................... 6
4.2.2 Classification ........................................................................................................................... 6
4.2.3 Vegetation .............................................................................................................................. 6
4.2.4 Hydrology ................................................................................................................................ 6
4.2.5 Soils ............................................................................................................................................ 6
5.0 ANALYSIS OF JURISDICTIONAL STATUS ........................................................................................... 7
6.0 EVALUATION OF THE EAST PARCEL FOR HABITAT MITIGATION................................................... 7
7.0 FIGURES ............................................................................................................................................... 8
8.0 TABLES ................................................................................................................................................ 13
9.0 PHOTOS ............................................................................................................................................. 17
10.0 REFERENCES .................................................................................................................................... 23
APPENDIX A. FIELD DATA FORMS ....................................................................................................... 25
LIST OF FIGURES
Number/Title Page
Figure 1. Project Location Map. .......................................................................................................... 9
Figure 2. Aerial Photo. .......................................................................................................................... 10
Figure 3. Wetland Map. ........................................................................................................................ 11
Figure 4. NRCS Soil Map. ..................................................................................................................... 12
LIST OF TABLES
Number/Title Page
Table 1. Wetland Summary ................................................................................................................ 14
Table 2. Vascular Pla nt Species List .................................................................................................... 15
LIST OF PHOTOS
Number/Title Page
Photo 1. Overview of the East Study Area, (1/29/20). .................................................................. 18
Photo 2. Wetland A with cottonwood trees and Russian olives in the uplands. (1/29/20). .. 18
Photo 3. Wetland A is dominated by reed canarygrass. (1/29/20). ......................................... 19
Photo 4. Wetland A, view to the southwest with the storage facility. (1/29/20). .................... 19
Photo 5. Wetland A, view to the west with Pits 3 and 4. (1/29/20). ........................................... 20
Photo 6. Pit 2 is located in a recently disturbed area outside Wetland A. (1/29/20)............. 20
Photo 7. Wetland B is in the bottom of an old irrigation storage pond. (1/29/20). ................ 21
Photo 8. Wetland B has a sparse vegetation cover dominated by knotweeds. (1/29/20). 21
Photo 9. Soil Pit 6 was dug in the bottom of the North Louden Ditch. (1/29/20). .................... 22
Photo 10. Pit 7 is near the old headgate in the North Louden Ditch. (1/29/20)....................... 22
1
1 .0 INTRODUCTION
Goodwin Knight has plans to construct a multifamily residential development known as Mars
Landing on a 3.79-acre Parcel in Fort Collins, Colorado (Figures 1 & 2). When the apartments
are constructed, an abandoned segment of the North Louden Ditch would be impacted.
The City of Fort Collins is requiring mitigation for these impacts and the loss of trees along the
ditch .
A potential mitigation site has been identified by the City on a 4.77-acre parcel located just
east of the proposed development at the southwest corner of Skyway Drive and College
Avenue . To aid in project planning, wetlands were delineated for the potential mitigation
site, herein known as the East Study Area (4.77 acres), as well as a small parcel immediately
west of the proposed development, the West Study A rea (1.58 acres) (Figures 1 & 2). These
parcels and the proposed Mars Landing apartments are located in Section 11 of Township 6
North and Range 69 West in Larimer County, Colorado.
For the purposes of mitigation planning, two boundaries were identified during the wetland
delineation. The limit of wetland vegetation, or “City of Fort Collins Wetlands”, was mapped
in addition to the limit of wetlands under the 1987 U.S. Army Corps of Engineers Wetland
Delineation Manual, as illustrated by Figure 3.
This report describes the wetlands identified in the East and West Study Areas in terms of their
vegetation, soil, and hydrology; provides site photos and a Wetland Map; and includes an
analysis of the jurisdictional status and an evaluation of the suitability of the East Study Area
for use as a habitat mitigation site. Please note, all Figures are included in Section 7.0; Tables
are in Section 8.0; selected photos are included within the text in Section 2.0, while numbered
site photos are in Section 9.0. Appendix A contains copies of the field data forms completed
during the wetland delineation in January 2020.
2.0 ENVIRONMENTAL SETTING
2.1 East Study Area
Panoramic view of the East Study Area taken from the southwest corner of Skyway Drive and College
Avenue. The site slopes and drains to a topographic depression on the west side of College Avenue.
2
The East Study Area is bounded by Skyway Drive to the north, by College Avenue to the east,
by a storage facility to the west, and by undeveloped agricultural lands to the south. The
site has a gently sloping topography that drains to a depression on the west side of College
Avenue.
A culvert is located at the base of the
depression and presumably carries
water to the east below College
Avenue. However , the inlet is clogged
with sediment and there is a Siberian
elm tree (Ulmus pumila) growing
between the pipe and flared end
section. The conditions observed
during the wetland delineation suggest
this culvert seldom flows.
This topographic depression is down
gradient of the North Louden Ditch and
historical aerial photography suggests
that irrigation tailwater collected in this
area. However, as land uses have changed the site has experienced hydrologic changes.
This area is no longer flood irrigated and the North Louden Ditch has been piped and no
longer provides subirrigation or surface water to the depression in the East Study Area.
The stormwater drainage in the vicinity of the East Parcel has also changed due to recent
construction (Figure 3). The storage facility now occupies the once-irrigated farmland
between the location of the proposed Mars Landing apartments and the East Study Area.
A recently constructed stormwater detention pond is located just south of the storage facility
which spills into the depression in the East Study Area. Likewise, there are two new culverts
that convey stormwater runoff into the north side of the depression. These hydrologic
changes are an important consideration for the evaluating the potential mitigation site and
defining appropriate restoration goals, as discussed below in Section 6.0.
Partially clogged culvert outfall below College
Avenue in the East Study Area.
1999 Google Earth Aerial 2019 Google Earth Aerial
3
Stormwater released from the culverts and seasonal high groundwater support wetland
development on the lower side slopes and bottom of the topographic depression, as
illustrated by Figure 3. Wetland A is discussed in greater detail below in Section 4.1.
2.2 West Study Area
The ±1.58-acre West Study Area is located along the western side of the proposed Mars
Landing apartments. This study area is bounded by Gateway Center Drive to the west, by
Skyway Drive to the north, and undeveloped agricultural l ands to the sou th.
The northern portion of the West Study Area is crossed by the abandoned segment of the
North Louden Ditch, where an old diversion structure directed flows into a storage pond that
is just south of Skyway Drive, inside a fenced enclosure (Figure 3). During field reconnaissance,
it appeared that water was no longer being diverted into the pond and it was empty, but
there was a sparse cover of
wetland vegetation on the
pond bottom, as discussed
below in Section 4.2.
A small, partially buried culvert
was located near the southern
end of the pond at Gateway
Center Drive. This culvert could
intermittently convey a small
volume of stormwater runoff
into the pond .
South of the pond, the West
Study Area has been seeded
along the corridor where the
North Louden Ditch was piped
and buried.
The irrigation storage pond was historically filled by the North
Louden Ditch but does not show evidence of recent use.
Seeded area along the North Louden Ditch pipeline corridor.
4
Elevations of the project site range from a high of approximately 5,052 feet in the field at the
southwest corner of the West Study Area, to a low of approximately 4,998 feet in the
topographic depression in the East Study Area.
3.0 DELINEATION METHODS
Wetlands were delineated by Heather Houston and Kristin Schroder of Birch Ecology, LLC
and David Buscher, a Certified Professional Soil Scientist with Buscher Soil & Environmental ,
on January 29, 2020. The delineation was conducted in accordance with the U.S. Army
Corps of Engineers Wetland Delineation Manual (1987) and the Great Plains Regional
Supplement (2010). In general, wetland boundaries were delineated and flagged based
upon the prevalence of hydrophytic vegetation, hydric soils, and indicators of a wetland
hydrology. Field forms for the 7 test pits with vegetation, soil, and hydrology data are
included in Appendix A. The limit of hydrophytic vegetation was also mapped for Wetland
A in the East Study Area, in accordance with City of Fort Collins regulations.
In general, plant species names follow Weber and Whitmann (1992) with updates from
Ackerfield (2015). The wetland status of plants follows the 2016 National List for the Great
Plains Region (Lichvar et al., 2016). Classification of wetlands follows Cowardin et al. (1979).
Wetland flagging was surveyed by Galloway & Company, Inc. of Johnstown, Colorado.
4.0 WETLANDS
The Wetland Map (Figure 3) illustrates the boundaries of the “City of Fort Collins Wetlands”
(limits of hydrophytic vegetation) and the “Corps of Engineers Wetlands.” These wetland
areas are summarized in Table 1 and are discussed below.
4.1 East Study Area – Wetland A
4.1.1 Location
Wetland A occupies the gently sloping sides and bottom of the topographic depression in
the East Study Area (Photos 1-4). Based on the Corps’ standards, it measures approximately
16,870 ft2 (0.39 acre). If areas of hydrophytic vegetation are included which la ck hydric soil
and/or indicators of a wetland hydrology, in accordance with the City of Fort Collins,
Wetland A measures 22,264 ft2 (0.51 acre).
4.1.2 Classification
Under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin
et al., 1979), Wetland A is in the Palustrine System, Emergent Persistent Wetland Class.
4.1.3 Vegetation
Wetland A is dominated by reed canarygrass (Phalaris arundinacea), an introduced
agricultural species that is common in irrigated areas, with the noxious weed quackgrass
(Elytrigia repens), smooth brome (Bromus inermis), and small areas of Baltic rush (Juncus
arcticus ssp. ater) at the periphery (Photos 2 & 3). In addition, a low cover of Nebraska sedge
(Carex nebrascensis) occur s on the turf reinforcement matting below the northern
stormwater culvert outfall, which may have been planted or seeded. The native
threesquare bulrush (Scirpus pungens) is also sparsely present in the wetter areas near the
5
bottom of the depression, in addition to foxtail barley (Hordeum jubatum), alkali muhly
(Muhlenbergia asperifolia), and saltgrass (Distichlis spicata).
The uplands that surround Wetland A have been heavily grazed by prairie dogs and there is
low vegetation cover . Smooth brome is the dominant grass, with some patches of crested
wheatgrass (Agropyron cristatum) and quackgrass. Weedy forbs present in this area include
flixweed (Descurainia sophia), prickly lettuce (Lactuca serriola), curly dock (Rumex crispus),
and the noxious weed Canada thistle (Cirsium arvense), with a lower cover of the natives
showy milkweed (Asclepias speciosa) and common sunflower (Helianthus annuus).
A stand of large, mature plains cottonwood trees (Populus deltoides) is located in the
uplands northwest of Wetland A (Photo 5). Several large Russian olive trees (Elaeagnus
angustifolia), a Colorado state-listed noxious weed, also occur in the adjacent uplands
(Photos 2 & 3). Table 2 lists the vascular plant species identified on the project site during the
wetland delineation in January 2020.
4.1.4 Hydrology
The East Study Area has an agricultural land use history and it is located downgradient of the
now abandoned (and piped) segment of the North Louden Ditch. In the past, it appears to
have received irrigation tailwater runoff but that is no longer the case. There appears to be
a shallow groundwater table in this area, which also supports wetland development.
The hydrology of Wetland A has changed due to the recent land use changes – the removal
of irrigation water and the addition of new storwmwater culverts that drain into the
depression. The extent of the Corps-defined wetlands and the extent of hydrophytic
vegetation could change over the next several years due to these hydrologic changes.
Today, stormwater runoff contributes to wetland development and Wetland A may also be
supported by a seasonally high groundwater table.
4.1.5 Soils
Soil with in the East Study Area was disturbed within the previous few years during con struction
of the self-storage facility and installation of the stormwater drainage improvements, as
noted on the field data forms in Appendix A.
The NRCS soil types mapped within the study area are illustrated by Figure 4. The East Study
Area is mapped as Kim-Thedalund Loams, 3-15% slopes. This is classified as a hydric soil.
Five soil pits were used to define the limits of Wetland A. Pit 1was located outside the Corps
of Engineers wetland but inside the zone of hydrophytic vegetation mapped as a City of Fort
Collins Wetland. Pit 1 lacked hydric soil indicators or indicators of a wetland hydrology.
Pit 2 was located in a disturbed soil the understory of the cottonwood trees north of the
wetland, adjacent to an area of erosion control blanket (Photo 6). This soil was likely
disturbed during the stormwater drainage improvements. The soil in the pit was hydric, with
mottles and a Redox Dark Surface. However, it lacked hydrophytic vegetation and
indicators of a wetland hydrology – so it was excluded from both wetland areas. The hydric
soil in this location may be an artefact from the prior land uses, when this area was flood
irrigated. A section of an old swale appears to have conveyed irrigation tailwater past these
cottonwood trees, as shown by historical aerial photography.
6
Pits 3, 4, and 5 met all three indicators and they were all located inside the Corps of Engineers
wetland boundary (Photo 5). All three pits contained a silty clay hydric soil with a Redox
Dark Surface (Indicator F6) and oxidized rhizospheres on living roots.
4.2 West Study Area - Wetland B
4.2.1 Location
Wetland B is the bottom of an old irrigation storage pond in the West Study Area, just west of
the piped and abandoned segment of the North Louden Ditch (Photos 7 & 8). This pond
could not be accessed during the delineation therefore the approximate wetland boundary
was drawn in from aerial photography. Due to the steep banks at the margin of the pond,
there is a sharp boundary between the upland and wetland habitats. In contrast to Wetland
A, only one boundary was identified for Wetland B. Due to site conditions, it is assumed that
the City of Fort Collins and Corps of Engineers would recognize the same boundary. The
estimated area of Wetland B is 3,414 ft2 (0.08 acre).
4.2.2 Classification
Under the Cowardin Classification System for Wetlands and Deepwater Habitats (Cowardin
et al., 1979), Wetland B is in the Palustrine System, Emergent Persistent Class.
4.2.3 Vegetation
Wetland B is characterized by a sparse cover of herbaceous wetland plants on the muddy
bottom of the irrigation storage pond, which is evidently no longer used for this purpose
(Photo 8). The dominant species appeared to be knotweeds (c.f. Persicaria lapathifolia).
The perimeter of the pond supports a woody overstory of native and introduced species.
There are several Siberian elms (Ulmus pumila), green ash (Fraxinus pensylvanica) and Russian
olive trees, and one smaller plains cottonwood, with larger, mature cottonwoods located
east of Pond B along the old ditch. Choke cherry (Prunus virginiana) and staghorn sumac
(Rhus typhina) are also common at the perimeter of the pond inside the fenced enclosure.
Smooth brome dominates the herbaceous understory.
No wetlands were identified in the North Louden Ditch (Photos 9 & 10). This area had an
overstory of plains cottonwood, Russian olive and buckthorn (Rhamnus catha rtica) with
smooth brome, prickly lettuce (Lactuca serriola), wild licorice (Glycyrhiza lepidota), and
common sunflower (Helianthus annuus) in the understory.
4.2.4 Hydrology
The adjacent segment of the North Louden Ditch is no longer used and therefore the
diversion structu re is not used to fill the irrigation storage pond (Photo 10). It did not have any
water at the time of the delineation, and it is not known if the pond will continue to have
sufficient water to support Wetland B in the future. A small, partially buried culvert was
identified near the southern end of the pond by Gateway Center Drive during the wetland
delineation, which could potentially carry a small volume of stormwater runoff towards the
pond.
4.2.5 Soils
As illustrated by Figure 4, the irrigation storage pond and segment of the North Louden Ditch
are located within an area mapped as Kim Loam. This is a hydric soil type.
7
Pits 6 and 7 were both dug in the bottom of the abandoned segment of the North Louden
Ditch east of Wetland B. Pit 6 was dug near Skyway Driv e and had a Depleted Matrix
(Indicator F3) (Photo 9). However, it lacked indicators of a wetland hydrology and it did not
support hydrophytic vegetation. Pit 7 was dug just below the old irrigation diversion
headgate (Photo 20) and also had a Depleted Matrix, as w ell as oxidized rhizospheres on
living roots, but lacked hydrophytic vegetation (Photo 10). This ditch no longer is used and it
does not have a wetland hydrology – and it should be noted these are recent changes.
5.0 ANALYSIS OF JURISDICTIONAL STATUS
The jurisdictional status of Wetlands A and B depends on the connectivity and flow through
culverts which may connect these wetlands to other waters of the U.S. Additional data are
needed to evaluate this potential connection. However, regardless of the hydrologic
connection, Wetlands A and B would be considered regulatory according to the guidance
in Section 3.4.1 in the City of Fort Collins Land Use Code (2019).
6 .0 EVALUATION OF THE EAST PARCEL FOR HABITAT MITIGATION
As discussed above in Sections 2.0 and 4.1, there have been a number of hydrologic
changes that affect the area of Wetland A and the remainder of the East Study Area. It
appears that there is an influence of groundwater in this area, which has also been
supplemented or augmented by irrigation tailwater collecting in a topographic depression,
as well as stormwater runoff. The site no longer has an agricultural land use and there is no
longer a contribution from irrigation tailwater. Additionally, recently installed stormwater
culverts will introduce a new source of water. The site has not yet had time to adjust to these
hydrologic changes – in particular the plant community has not yet responded and there
will be changes to the soil moisture availability – perhaps the amount and location of the
wetter areas. These factors are important when considering the site for use as a mitigation
area. They affect the plant species which should be used and the restoration potential - and
should be used to develop appropriate goals.
8
7 .0 FIGU RES
±Figure 1. Project Location MapMars Landing Offsite Mitigation Study Areas
0 1,200 2,400600Feet
Prepared by:Birch Ecology LLC 429 Main Street P.O. Box 170 Lyons, CO 80540(720) 350-2530www. birchecology.com
LEGEND
Study Area Boundaries
Proposed Mars Landing Project Site 1:24,000
March 2020
BASE: USGS 7.5' Loveland and Fort Collins Quadrangles, Colorado
COLORADO
LarimerCounty
^_
Trilby RoadSouth College Avenue(Highway 287)Skyway Drive
West Study Area East Study Area
Proposed Mars Landing Project Site
9
±Figure 2. Aerial PhotoMars Landing Offsite Mitigation Study Areas
0 75 15037.5 Feet
Prepared by:Birch Ecology LLC 429 Main Street P.O. Box 170 Lyons, CO 80540(720) 350-2530www. birchecology.com
LEGEND
Study Area Boundaries
Proposed Mars Landing Project Site 1:1,500
March 2020South College Avenue (Highway 287)Skyway Drive
West Study Area
East Study Area
Storage Facility
Gateway Center DriveAbandoned Segment North Louden Ditch Mars DriveProposed Mars Landing Project SiteIrrigationPond
10
11
±
Figure 4. NRCS Soils MapMars Landing Offsite Mitigation Study Areas
0 75 15037.5 Feet
Prepared by:Birch Ecology LLC 429 Main Street P.O. Box 170 Lyons, CO 80540(720) 350-2530www. birchecology.com
LEGEND
Study Area Boundaries
NRCS Soil Types
35 - Fort Collins loam,0-3% slopes
54 - Kim loam*,3-5% slopes
56 - Kim-Thedalund loams*,3-15% slopes
65 - Midway clay loam,5-25% slopes
90 - Renohill clay loam,3-9% slopes
1:1,500
March 2020South College Avenue (Highway 287)Skyway Drive
West Study Area
East Study Area
Storage Facility
Gateway Center DriveAbandoned SegmentNorth Louden Ditch
56
56
56
54
5435
3554
90 90
65Mars DriveIrrigationPond
* Hydric Soils
12
13
8 .0 TABLES
14
TABLE 1
Wetland Summary
Mars Landing Offsite Mitigation Study Areas
Wetlands Area Location
East Study Area
Wetland A
City of Ft. Collins Boundary 22,264 ft2 (0.51 ac) 40.501271° N
Corps of Engineers Boundary 16,870 ft2 (0.38 ac) -105.07732° E
West Study Area
Wetland B 3,414 ft2 (0.08 ac) 40.501882° N
(Same boundary for both) -105.081369° E
TOTAL CITY OF FORT COLLINS WETLANDS 25,678 ft2 (0.59 ac)
TOTAL CORPS OF ENGINEERS WETLANDS 20,284 ft2 (0.47 ac)
15
TABLE 2
Vascular Plant Species List
Mars Landing Offsite Mitigation Study Areas
Scientific Name Common Name Family Origin*
Wetland
Status**
Trees
Elaeagnus angustifolia Russian olive Eleangnaceae I+ FACU
Fraxinus pensylvanica Green ash Oleaceae I FAC
Populus deltoides Plains cottonwood Salicaceae N FAC
Ulmus pumila Siberian elm Ulmaceae I UPL
Shrubs
Chrysothamnus
nauseosus
Rubber rabbitbrush Asteraceae N NL
Prunus virginiana
var. melanocarpa
Choke cherry Rosaceae N FACU
Rhus typhina Staghorn sumac Anacardiaceae I NL
Rhamnus cathartica Common Buckthorn Rhamnaceae N FACU
Perennial Graminoids
Agropyron cristatum Crested wheatgrass Poaceae I NL
Bromus inermis Smooth brome Poaceae I UPL
Carex nebrascensis Nebraska sedge Cyperaceae N OBL
Carex praegracilis Clustered field sedge Cyperaceae N FACW
Distichlis spicata Saltgrass Poaceae N FACW
Elytrigia repens
(Elymus)
Quackgrass Poaceae I+ FACU
Hordeum jubatum Foxtail barley Poaceae N FACW
Juncus arcticus ssp. ater
(J. balticus)
Baltic rush Juncaceae N FACW
Muhlenbergia
asperifolia
Alkali muhly Poaceae N FACW
Phalaris arundinacea Reed canarygrass Poaceae I FACW
Scirpus pungens
(S. americanus)
Threesquare bulrush Cyperaceae N OBL
Perennial Forbs
Asclepias speciosa Showy milkweed Asclepiadaceae N FAC
Cirsi um arvense Canada thistle Asteraceae I+ FACU
Glycyrrhiza lepidota Wild licorice Fabaceae N FACU
c.f. Linaria vulgaris Toadflax Scrophulariaceae I+ NL
Rumex crispus Curly dock Polygonaceae I FAC
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TABLE 2
Vascular Plant Species List
Mars Landing Offsite Mitigation Study Areas
Scientific Name Common Name Family Origin*
Wetland
Status**
Annual/Biennial Forbs
Atriplex sp. Saltbush Chenopodiaceae -- NA
Chenopodium sp. Lambs quarters Chenopodiaceae -- NA
Descurainia sophia Flixweed Brassicaceae I NL
Helianthus annuus Common sunflower Asteraceae N FACU
Lactuca serriola Prickly lettuce Asteraceae I FAC
c.f. Persicaria
lapathifolia
Curlytop knotweed Polygonaceae N OBL
Verbascum thapsus Great mullein Scrophulariaceae I+ UPL
* Origin: N = Native; I = Introduced; I+ = Colorado State-Listed Noxious Weed
** Wetland Status: OBL = Obligate Wetland; FACW = Facultative Wetland; FAC =
Facultative; FACU = Facultative Upland; UPL = Obligate Upland; NL = No Status in this
Region
17
9 .0 PHOTOS
18
Photo 1. Overview of the East Study Area, which slopes and drains toward College Avenue. View is
to the northeast from near the stormwater outfall. (1/29/20).
Photo 2. Wetland A is on the lower side slopes and bottom of the topographic depression.
Cottonwood trees and Russian olives are in the adjacent uplands. (1/29/20).
19
Photo 3. Wetland A is dominated by reed canarygrass. Russian olives occur in the
adjacent uplands. View is to the south with College Avenue pictured at left. (1/29/20).
Photo 4. Wetland A, view to the southwest with the storage facility in the
background. (1/29/20).
20
Photo 5. Wetland A, view to the west with Pits 3 and 4 and the mature cottonwood
trees in the background. (1/29/20).
Photo 6. Pit 2 is located in a recently disturbed area near a section of erosion
control blanket, outside Wetland A. (1/29/20).
21
Photo 7. Wetland B is in the bottom of an old irrigation storage pond that was
historically filled by a headgate on the North Louden Ditch. (1/29/20).
Photo 8. Wetland B has a sparse vegetation cover dominated by knotweeds
(Persicaria spp). (1/29/20).
22
Photo 9. Soil Pit 6 was dug in the bottom of the North Louden Ditch. (1/29/20).
Photo 10. Pit 7 is near the old headgate in the North Louden Ditch. This segment of the ditch no
longer carries irrigation water, since it was piped. The buried pipeline corridor crosses
through the West Study Area parallel to Gateway Center Drive. (1/29/20).
23
10.0 REFERENCES
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Plant Associations of Colorado. Colorado Natural Heritage Program, Fort Collins,
Colorado.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. La Roe. 1979. Classification of wetlands and
deepwater habitats of the United States. U.S. Fish and Wildlife Service Pub. FWS/OBS-
79/31, Washington, D.C., 103 p.
Culver, D.R. and J.M. Lemly. 2013. Field Guide to Colorado’s Wetland Plants: Identification,
Ecology and Conservation. Colorado Natural Heritage Program, Fort Collins,
Colorado.
Harrington, H.D. 1964. Manual of the Plants of Colorado. The Swallow Press, Inc. Chicago,
Illinois 60605.
Kartesz, J.T. 1994a. A Synonymized Checklist of the Vascular Flora of the United States,
Canada, and Greenland. Vol. 1 - Checklist. Second edition. Timber Press, Inc.
Portland, Oregon. 622 p.
Kartesz, J.T. 1994b. A Synonymized Checklist of the Vascular Flora of the United States,
Canada, and Greenland. Vol. 2 - Thesaurus. Second edition. Timber Press, Inc.
Portland, Oregon. 816 p.
Lichvar, R.W., M. Butterwick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant
List: 2014 Update of Wetland Ratings. Phytoneuron 2014-41: 1-42.
NatureServe Explorer: An Online Encyclopedia of Life. http://www.natureserve.org/explorer/
U.S. Army Corps of Engineers. 2010. Regional Supplement to the Corps of Engineers Wetland
Delineation Manual: Great Plains Region (Version 2.0). ERDC/EL TR -10-1. U.S. Army
Engineer Research and Development Center, Vicksburg MS.
U.S. Army Corps of Engineers. 1987. Wetlands Delineation Manual, Technical Report Y-87-1.
U.S. Army Corps of Engineers Waterways Experiment Station, Vicksburg, MS.
USDA, NRCS. 2014. The PLANTS Database (http://plants.usda.gov , 28 February 2014). National
Plant Data Team, Greensboro, NC 27401-4901 USA.
University of Colorado Herbarium (COLO). Specimen Database of Colorado Vascular Plants.
http://cumuseum.colorado.edu/Research/Botany/Databases/search.php
Weber, W. A. and R. C. Whitmann. 2012. Colorado Flora: Eastern Slope, Fourth edition.
University Press of Colorado. Boulder, Colorado.
24
Weber, W.A. & R.C. Wittmann, 1992. Catalog of the Colorado Flora: A Biodiversity Baseline.
University Press of Colorado. Niwot, Colorado. Including most recent addenda
available from CU Herbarium (COLO), Boulder, Colorado.
25
APPENDIX A. FIELD DATA FORMS
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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:
3 - Prevalence Index is 3.01
4 - Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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:
US Army Corps of Engineers
Project/Site: City/County: Sampling Date:
Applicant/Owner: State: Sampling Point:
Investigator(s): Section, Township, Range:
Landform (hillslope, terrace, etc.): Local relief (concave, convex, none): Slope (%):
Subregion (LRR): Lat: Long: Datum:
Soil Map Unit Name: NWI classification:
Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.)
Are Vegetation , Soil , or Hydrology No
Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.)
ng 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:
Dominance Test worksheet:
Number of Dominant Species
That Are OBL, FACW, or FAC
(excluding 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)
Problematic Hydrophytic Vegetation1 (Explain)
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Absolute Dominant Indicator
Tree Stratum (Plot size:) % Cover Species? Status
1.
2.
3.
4.
= Total Cover
Sapling/Shrub Stratum (Plot size: )
1.
2.
3.
4.
5.
= Total Cover
Herb Stratum (Plot size: )
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
= Total Cover
Woody Vine Stratum (Plot size:)
1.
2.
= Total Cover
% Bare Ground in Herb Stratum
Hydrophytic
Vegetation
Present? Yes No
Remarks:
US Army Corps of Engineers
SOIL Sampling Point:
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type1 Loc2 Texture Remarks
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 Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J)
Histic Epipedon (A2) Sandy Redox (S5) Coast Prairie Redox (A16) (LRR F, G, H)
Black Histic (A3) Stripped Matrix (S6) Dark Surface (S7) (LRR G)
Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) High Plains Depressions (F16)
Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73)
1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18)
Depleted Below Dark Surface (A11) Redox Dark Surface (F6) Red Parent Material (TF2)
Thick Dark Surface (A12) Depleted Dark Surface (F7) Very Shallow Dark Surface (TF12)
Sandy Mucky Mineral (S1) Redox Depressions (F8) Other (Explain in Remarks)
2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and
5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present,
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 (minimum of two required)
Surface Water (A1) Salt Crust (B11) Surface Soil Cracks (B6)
High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8)
Saturation (A3) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10)
Water Marks (B1) Dry-Season Water Table (C2) Oxidized Rhizospheres on Living Roots (C3)
Sediment Deposits (B2) Oxidized Rhizospheres on Living Roots (C3) (where tilled)
Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8)
Algal Mat or Crust (B4) Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9)
Iron Deposits (B5) Thin Muck Surface (C7) Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) FAC-Neutral Test (D5)
Water-Stained Leaves (B9) Frost-Heave Hummocks (D7) (LRR F)
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: