HomeMy WebLinkAboutReports - Ecological Study - 11/06/2024Prepared for:
Touchmark Development & Construction Co
5150 SW Griffith Drive
Beaverton, Oregon
Prepared by:
Terracon Consultants, Inc.
Fort Collins, Colorado
Ecological Characterization Study
Proposed Retirement Community
4710 Cinquefoil Lane
Fort Collins, Larimer County, Colorado
November 6, 2024 | Terracon Project No. 20247058
1901 Sharp Point Drive, Suite C
Fort Collins, CO 80525
P (970) 484-0359
F (970) 484-0454
Terracon.com
November 6, 2024
Touchmark Development & Construction Co.
5150 SW Griffith Drive
Beaverton, Oregon 97005-2935
Attn: Mr. Ryan Benson
P: (503) 646-5186
E:Ryan.Benson@Touchmark.com
Re: Ecological Characterization Study
Proposed Retirement Community
4710 Cinquefoil Lane
Fort Collins, Colorado
Terracon Project No. 20247058
Dear Mr. Benson:
Terracon Consultants, Inc. (Terracon) is pleased to submit the enclosed ecological
characterization study for the above-referenced site. This study was performed in accordance
with Terracon Proposal P20247058 dated June 26, 2024 and the Consulting Agreement dated
August 9, 2024.
We appreciate the opportunity to be of service to you on this project. In addition to ecological
services, our professionals provide other environmental, geotechnical, construction materials,
and facilities services on a wide variety of projects locally, regionally, and nationally. For more
detailed information on all of Terracon’s services please visit our website at
www.terracon.com. If there are any questions regarding this report or if we may be of further
assistance, please do not hesitate to contact us.
Sincerely,
Terracon Consultants, Inc.
Travis O. Whalen Christina L. Ruble
Field Scientist Environmental Department Manager
Hunter Watkins
Project Manager
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials i
TABLE OF CONTENTS
1.0 Introduction .................................................................................................... 1
1.1 Site Location / Ecoregion ......................................................................... 1
1.2 Existing Conditions ................................................................................. 2
1.3 Proposed Project .................................................................................... 2
2.0 Regulatory Setting ........................................................................................... 2
2.1 Endangered Species Act (ESA) ................................................................. 2
2.2 Bald and Golden Eagle Protection Act (BGEPA) ........................................... 3
2.3 Migratory Bird Treaty Act (MBTA) ............................................................. 3
2.4 Nongame, Endangered, or Threatened Species Conservation Act .................. 4
2.5 Waters of the US (WOTUS) Delineation ..................................................... 4
2.6 City of Fort Collins Land Use Code Article 5................................................ 5
3.0 Methodology .................................................................................................... 6
4.0 Records Review................................................................................................ 6
4.1 IPac Report ........................................................................................... 6
4.2 State Listed Species ............................................................................... 8
4.3 Colorado’s Conservation Data Explorer (CODEX) ........................................ 9
5.0 Ecological Characterization Results ................................................................... 11
5.1 Wildlife Use ............................................................................................. 11
5.2 Wetlands ............................................................................................. 12
5.3 Prominent Views ...................................................................................... 12
5.4 Native Tress and Vegetation ...................................................................... 12
5.5 Non-native Trees and Vegetation ............................................................... 13
5.6 Perennial Streams and Water Bodies .......................................................... 12
5.7 Sensitive or Specially Valued Species ......................................................... 12
5.8 Special Habitat Features ........................................................................... 12
5.9 Wildife Movement Corridors ...................................................................... 12
5.10 General Ecological Function ...................................................................... 12
5.11 Issues with Timing of Developmnet Activities ............................................. 12
5.12 Natural Habitat or Features Requiring Mitigation ......................................... 12
6.0 Conclusion and Recommendations .................................................................... 14
7.0 References .................................................................................................... 15
LIST OF TABLES
Table 1: USFWS Species Listed for Project Site in Larimer County, Colorado ...................... 6
Table 2: State Listed T&E Species in Colorado................................................................ 8
Table 3: CODEX Listed Species within Study Area ........................................................ 10
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials ii
LIST OF APPENDICES
APPENDIX A
Exhibit 1 – Site Location Map
Exhibit 2 – Topographic Map
Exhibit 3 – USFWS NWI Map
Exhibit 4 – NRCS Soil Survey
Exhibit 5 – FEMA Fire Insurance Map
Exhibit 6 – GIS Field Map (WOTUS)
Exhibit 7 – GIS Field Map (Wildlife)
APPENDIX B
USFWS IPaC Report
CODEX Report
APPENDIX C
Site Photographs
APPENDIX D
Wetland Determination Data Forms
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 1
1.0 INTRODUCTION
Terracon Consultants, Inc. (Terracon) was retained by Touchmark Development &
Construction Co. (Client) to conduct an Ecological Characterization Study for the Proposed
Retirement Community in Fort Collins, Colorado. This study was performed in accordance with
Terracon Proposal P20247058 dated June 26, 2024 and the Consulting Agreement dated
August 9, 2024. The City of Fort Collins Land Use Code Article 5.6.1 states, “If the
development site contains, or is within five hundred (500) feet of, a natural habitat or feature,
or if it is determined by the Director, upon information or from inspection, that the site likely
includes areas with wildlife, plant life and/or other natural characteristics in need of protection,
then the developer shall provide to the City an ecological characterization report prepared by
a City approved professional qualified in the areas of ecology, wildlife biology or other relevant
discipline.” The Land Use Code Article also requires description of any measures needed to
mitigate impacts on natural habitats and other ecological features.
1.1 Site Location / Ecoregion
The site is located at 4710 Cinquefoil Lane in Fort Collins, Larimer County, Colorado (Exhibit
1) and consists of approximately 18 acres of vacant land associated with Larimer County
Parcel No. 8604000017. The site location is depicted on Exhibit 2 of Appendix A, which was
reproduced from a portion of the United States Geological Survey (USGS) 7.5-minute series
topographic map.
The project site is located within Level III Ecoregion 25-High Plains and Level IV Ecoregion
25l-Front Range Fans. Descriptions of each are highlighted below.
High Plains (25) - Higher and drier than the Central Great Plains (27) to the east, and in
contrast to the irregular, mostly grassland or grazing land of the Northwestern Great Plains
(43) to the north, much of the High Plains comprises smooth to slightly irregular plains having
a high percentage of cropland. Grama-buffalo grass is the potential natural vegetation in this
region as compared to mostly wheatgrass-needlegrass to the north, Trans-Pecos shrub
savanna to the south, and taller grasses to the east. The northern boundary of this ecological
region is also the approximate northern limit of winter wheat and sorghum and the southern
limit of spring wheat. Below is the Level IV Ecoregion of the High Plains within the project
area:
Front Range Fans (25l): The Front Range Fans ecoregion flanks the northern Front Range
of the Southern Rockies in Colorado. Streams tend to be cooler than in other High Plains (25)
regions and contain many Front Range aquatic species. The soils of the region have more
outwash gravels than regions farther east and occupy old terraces, benches, and alluvial fans.
The soils are formed from materials weathered from arkosic sedimentary rock, gravelly
alluvium, and redbed shales and sandstone. Some soils have a high shrink-swell potential.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
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Land use is changing from mostly cropland and rangeland to more extensive urban
development. Development has led to an increase in manmade lakes and gravel pits dotting
the region. (Chapman, et al., 2006).
1.2 Existing Conditions
At the time of the site reconnaissance, the project area consisted of vacant land with a storm
water detention pond present on the east part of the site. The land cover consisted of non-
native weed cover on most of the site and primarily native plant cover at the stormwater
detention pond.
1.3 Proposed Project
Terracon understands the anticipated future use of the site is development as a senior living
community which will include a primary 60,000 square foot, 3-story building with an
underground parking garage, a secondary 20,000 square foot, 2-story building with a
potential underground parking garage, and 40 to 50 smaller dwellings at 2,000 to 3,000
square feet each.
2.0 REGULATORY SETTING
2.1 Endangered Species Act (ESA)
The United States Fish and Wildlife Service (USFWS) has the authority under the ESA to list
and monitor the status of species whose populations are considered imperiled. USFWS
regulations that implement the ESA are codified and regularly updated in 50 CFR Part 17. The
federal process identifies potential candidates based on biological vulnerability. The
vulnerability assessment considers several factors affecting a species within its range and is
linked to the best scientific data available to the USFWS. Species listed as threatened or
endangered by the USFWS are afforded full protection under the ESA, including the prohibition
of indirect take such as the destruction of designated critical habitat.
Section 7 of the ESA requires Federal agencies to "request of the Secretary information
whether any species which is listed or proposed to be listed may be present in the area of
such proposed action" for any project that is conducted, permitted, funded, or licensed by
any Federal agency. A letter from the local office and a species list which fulfills this
requirement can only be obtained by requesting an official species list from either the
Regulatory Review section in Information, Planning, and Conservation System (IPaC), or from
the local field office directly.
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Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
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2.2 Bald and Golden Eagle Protection Act (BGEPA)
Bald and golden eagles, having been delisted under the ESA, are still afforded federal
protections under the BGEPA (16 U.S.C. 668-668c), enacted in 1940. Under the BGEPA it is
unlawful to take, possess, sell, purchase, barter, offer to sell, possess, transport, export or
import, bald or golden eagles, alive or dead, including any part (including feathers), nest
(including inactive nests), or egg, unless allowed by permit. A “take” under the BGEPA is
defined as to “pursue, shoot, shoot at, poison, wound, capture, trap, collect, molest or
disturb.” The term “disturb”, as defined in a final rule published in the Federal Register on
June 5, 2007 (Volume 72, page 31332) means to “agitate or bother a bald or golden eagle to
a degree that causes, or is likely to cause, based on the scientific information available (1)
injury to an eagle, (2) a decrease in its productivity, by substantially interfering with normal
breeding, feeding, or sheltering behavior, or (3) nest abandonment, by substantially
interfering with normal breeding, feeding, or sheltering behavior.”
2.3 Migratory Bird Treaty Act (MBTA)
ESA and State-listed avian species, as well as other migratory birds, are protected under the
MBTA. The 1918 MBTA establishes a Federal prohibition “to pursue, hunt, capture, kill, collect,
possess, buy, sell, trade, or transport any migratory bird, nest, young, feather, or egg,
without a permit” issued in accordance with the policies and regulations of the MBTA. Take is
defined as “to pursue, hunt, shoot, wound, kill, trap, capture, or collect, or attempt to pursue,
hunt, shoot, wound, kill, trap, capture, or collect migratory birds”. The MBTA does not prohibit
the destruction of the bird nest alone (without birds or eggs) provided that no possession of
the nest occurs during destruction. The USFWS is the lead agency determining permitting
requirements for nest removal or destruction for birds protected under the MBTA.
Under the current regulatory framework, there are no provisions for allowing the take of
migratory birds that are unintentionally killed or injured (incidental take). The USFWS is
actively undertaking rule making procedures to define and regulate incidental take and has
issued a Director’s Order (Order) to provide interim guidance for the regulation of incidental
take. In the Order, the USFWS indicates that they would enforce incidental takes as a
statutory take in accordance with case law presiding in the state where the incidental take
occurs. Under the Order, the following types of conduct are not a priority for enforcement
against incidental take:
(1) A member of the general public conducting otherwise legal activities that
incidentally take migratory birds;
(2) A Federal agency conducting activities in accordance with a signed
memorandum of understanding with the USFWS developed under Executive
Order 13186 for the conservation of migratory birds; or
(3) A public- or private-sector entity conducting activities in accordance with
applicable beneficial practices for avoiding and minimizing incidental take.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
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Activities in accordance with applicable beneficial practices for avoiding and minimizing
incidental take can include conducting habitat removal outside of migratory bird nesting
season or conducting nesting surveys of appropriate habitat to limit disturbance of nesting
birds coinciding with habitat removal during nesting season.
2.4 Nongame, Endangered, or Threatened Species
Conservation Act
The Nongame, Endangered, or Threatened Species Conservation Act of 1984 is a Colorado
state law making it unlawful for any person to take, possess, transport, export, process, sell
or offer for sale, or ship and for any common or contract carrier to knowingly transport or
receive for shipment any species or subspecies of wildlife appearing on the list of wildlife
indigenous to Colorado determined to be endangered or threatened.
2.5 Waters of the US (WOTUS) Delineation
Terracon reviewed the following resources to evaluate the potential presence of
jurisdictional waters of the U.S., including wetlands, on the site.
Topographic Map
The United States Geologic Survey (USGS) 7.5-Minute Topographic Map of the subject site
(Fort Collins, CO), published 2022, was reviewed to identify drainages or other potential
waters of the U.S. within the project site. Based on this map, there appears to be one (1)
waterway running offsite along the east site boundary from the north to the south. No
drainages or waterways appeared to be onsite. See Exhibit 2 for the topographic map.
National Wetland Inventory Map
Terracon reviewed National Wetland Inventory (NWI) data for the project site to identify
potential wetland areas. NWI data for the project site was published by the U.S. Department
of the Interior’s Fish and Wildlife Service and did not identify any wetland areas based on
stereoscopic analysis of high-altitude aerial photographs. One riverine wetland was
identified offsite and adjacent to the east site boundary and was verified during site
reconnaissance to be completely outside of the site. See Exhibit 3 for the NWI Map.
USDA NRCS Soil Survey
Terracon reviewed the United States Department of Agriculture (USDA) Natural Resources
Conservation Service (NRCS) Soil Survey data for the site to identify occurrences of
documented hydric soils on the site as Larimer-Stoneham complex, 3 to 10 percent slopes,
Nunn clay loam, 0 to 1 percent slopes, and the Nunn clay loam, 1 to 3 percent slopes. The
Larimer-Stoneham complex soils, Nunn clay loam soils (0 to 1 percent slopes), and Nunn
clay loam soils (1 to 3 percent slopes) are all well-drained, have no frequency of flooding or
ponding, and have no hydric conditions. The NRCS soil survey map for the project area is
included as Exhibit 4.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 5
FEMA Flood Insurance Rate Map
Terracon reviewed Federal Emergency Management Agency (FEMA) Flood Insurance Rate
Map (FIRM) Map Number 08069C0994F, effective December 16, 2006. According to the
FIRM panel, the project site is mapped in Zone X which lies outside the 100-year floodplain.
The FIRM for the project area is included as Exhibit 5.
2.6 City of Fort Collins Land Use Code Article 5
The City of Fort Collins Land Use Code Article 5.6.1 states, “If the development site contains,
or is within five hundred (500) feet of, a natural habitat or feature, or if it is determined by
the Director, upon information or from inspection, that the site likely includes areas with
wildlife, plant life and/or other natural characteristics in need of protection, then the developer
shall provide to the City an ecological characterization report prepared by a City approved
professional qualified in the areas of ecology, wildlife biology or other relevant discipline. The
ecological characterization study shall describe, without limitation, the following:
(I) the wildlife use of the area showing the species of wildlife using the area, the times
or seasons that the area is used by those species and the "value" (meaning feeding,
watering, cover, nesting, roosting, perching) that the area provides for such wildlife
species;
(II) the boundary of wetlands in the area and a description of the ecological functions
and characteristics provided by those wetlands;
(III) any prominent views from or across the site;
(IV) the pattern, species and location of any significant native trees and other native
site vegetation;
(V) the pattern, species and location of all non-native trees and vegetation that
contribute to the site's ecological, shade, canopy, aesthetic and cooling value;
(VI) the top of bank, shoreline and high water mark of any perennial stream or body
of water on the site;
(VII) areas inhabited by or frequently utilized by Sensitive and Specially Valued
Species;
(VIII) special habitat features;
(IX) wildlife movement corridors;
(X) the general ecological functions provided by the site and its features;
(XI) any issues regarding the timing of development-related activities stemming from
the ecological character of the area; and
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 6
(XII) any measures needed to mitigate the projected adverse impacts of the
development project on natural habitats and features.”
3.0 METHODOLOGY
To identify wetlands, federal, and state T&E species with potential to occur on the proposed
project site, a desktop review of publicly and readily available information was conducted
along with a field survey. Sources reviewed included the USFWS IPaC system, Colorado Parks
and Wildlife (CPW) T&E Species Profile website, Colorado Natural Heritage Program (CNHP),
Colorado’s Conservation Data Explorer (CODEX) report, NWI maps, USDA NRCS Soil Survey
maps, FEMA FIRM, USGS Quadrangle maps, and aerial imagery.
Following the database review, a field survey of the project site was conducted to supplement
and validate previously characterized habitat documented through the desktop review. On
October 4, 2024, a pedestrian survey was performed across the entire site and observations
of potentially suitable habitat and species occurrence were documented, as well as the
presence or absence of wetlands. Site photographs, included in Appendix C, provide examples
of the physical characteristics observed during the field survey.
4.0 RECORDS REVIEW
4.1 IPac Report
T&E species are listed on the USFWS Information, Planning, and Conservation System (IPaC).
An Official Species List dated September 3, 2024 was generated by IPaC. The list of T&E
species compiled by the USFWS on the IPaC for the study area in Larimer County, Colorado
includes eight species that should be considered in an effects analysis (reference USFWS IPaC
Resource List in Appendix B). Table 1 (below) includes the species listed by the USFWS which
may occur within Weld County, Colorado, their federal status, habitat descriptions/species
information, and their potential to occur within the study area. Species with potential to occur
within the study area are denoted by red highlighted rows.
Table 1: USFWS Species Listed for Project Site in Larimer County, Colorado
Species Status*Habitat Requirements /
Species Information
Potential to Occur
within the Study area?
Mammals
Preble’s Meadow
Jumping Mouse
(Zapus
hudsonius
preblei)
FT
Preble’s Meadow Jumping Mouse is
found along riparian corridors with
access to running water, tall grasses,
and shrubs. The mice prefer a high
plant species diversity and avoid
No suitable habitat occurs
within the study area.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 7
Species Status*Habitat Requirements /
Species Information
Potential to Occur
within the Study area?
areas with invasive species (USFWS
2023).
Birds
Eastern Black
Rail
(Laterallus
jamaicensis)
FT
Salt, brackish, and freshwater
marshes, pond borders, wet
meadows, and grassy swamps; nests
in or along edge of marsh, sometimes
on damp ground, but usually on mat
of previous years dead grasses; nest
usually hidden in marsh grass or at
base of Salicornia (USFWS 2023).
No suitable habitat occurs
within the study area.
Piping Plover
(Charadrius
melodus)
FT
Occurs downstream of project area
and only needs to be considered if the
project results in water depletions to
the North Platte, South Platte, and
Laramie River Basins (USFWS 2023).
No. Water depletions are
not associated with the
proposed project.
Whooping Crane
(Grus
americana)
FE
Occurs downstream of project area
and only needs to be considered if the
project results in water depletions to
the North Platte, South Platte, and
Laramie River Basins (USFWS 2023).
No. Water depletions are
not associated with the
proposed project.
Fishes
Pallid Sturgeon
(Scaphirhynchus
albus)
FE
Occurs downstream of project area
and only needs to be considered if the
project results in water depletions to
the North Platte, South Platte, and
Laramie River Basins (USFWS 2023).
No. Water depletions are
not associated with the
proposed project.
Insects
Monarch
Butterfly
(Danaus
plexippus)
FC Patches of milkweed species
(Asclepias spp.) (USFWS 2023).
No suitable habitat occurs
within the study area.
Flowering Plants
Ute Ladies’-
tresses
(Spiranthes
diluvialis)
FT
Moist meadows associated with
perennial streams, floodplains, and
oxbows. Seasonally flooded rivers,
Stream channels and moist riparian
areas (USFWS 2023).
No suitable habitat occurs
within the study area.
Western Prairie
Fringed Orchid
(Platanthera
praeclara)
FT
Occurs downstream and only needs to
be considered if the project results in
water depletions to the Platte River
system (USFWS 2023).
No. Water depletions are
not associated with the
proposed project.
*FT = Federally Threatened; FE = Federally Endangered; FC = Federal Candidate; PFE = Proposed Federally Endangered
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 8
4.2 State Listed Species
Colorado Parks and Wildlife (CPW) identifies 16 T&E species for the state of Colorado (see
CPW Threatened and Endangered List in Appendix B). State regulations do not require habitat
protection for state listed T&E species; therefore, state listed T&E species are typically only a
development constraint if individual species are identified onsite. Impact determinations were
not made for Species of State Special Concern (SC), as they are not a statutory category.
Of the 16 unique species listed, five species are listed as threatened, eleven are listed as
endangered. The habitat and potential presence of these species within the site are
described in the Table 2 below. Species with potential to occur within the study area are
denoted in highlighted red rows.
Table 2: State Listed T&E Species in Colorado
Species Status*Habitat
Information/Requirements
Potential to Occur in the
Study Area or be Impacted
by the Project?
Mammals
Wolverine
(Gulo gulo)SE
Tundra, taiga, boreal and
alpine habitat.
No. Study area is outside the
known distribution for the
species.
River Otter
(Lontra canadensis)ST
Beaver ponds, stream
channels and warm water
sloughs (CPW 2022a).
No. No suitable habitat occurs
within the study area
Kit Fox
(Vulpes macrotis)SE
In Colorado this species
occurs in semi-desert shrub
lands extending from
Montrose to Grand Junction
(CPW 2022a).
No. Study area is outside the
known distribution for the
species.
Birds
Least Tern
(Sterna antillarum)SE
Sandy or pebbly beaches
around lakes, reservoirs, or
river channels.
No. No suitable habitat occurs
within the study area.
Burrowing Owl
(Athene cunicularia)ST
Dry, open areas with short
grasses and no trees. They
nest and live in underground
burrows created by prairie
dogs, ground squirrels and
badgers (CPW 2022a).
Yes. Prairie dogs were
observed throughout the
study area.
Plains Sharp-Tailed
Grouse
(Tympanuchus
phasianellus jamesii)
SE
The species is found almost
exclusively in Conservation
Reserve Program grasslands
in Weld, Logan, and Sedgwick
Colorado (CPW 2022a).
No. study area is outside the
known distribution for the
species.
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Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 9
* SE = State Endangered, ST = State Threatened
4.3 Colorado’s Conservation Data Explorer (CODEX)
In addition to the state listed species from the CPW website, a project review report dated
October 3, 2024, was generated using the CODEX database for the study area (reference
CODEX Project Review Report in Appendix B). Four species were listed as “Potential
Regulatory Species within Study Area.” The report states no critical habitat for sensitive or
species of concern were identified within one mile of the study area.
Table 3 (below) includes the species listed by the CODEX within the study area located in
Larimer County, Colorado, their state status, habitat descriptions/species information, and
their potential to occur within the study area. Species with potential to occur within the study
area are denoted by red text.
Species Status*Habitat
Information/Requirements
Potential to Occur in the
Study Area or be Impacted by
the Project?
Fish
Rio Grande Sucker
(Catostomus plebeius)SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Arkansas Darter
(Etheostoma cragini)ST Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Brassy Minnow
(Hybognathus
hankinsoni)
ST Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Common Shiner
(Luxilus cornutus)
ST Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Lake Chub
(Couesius plumbeus)SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Plains Minnow
(Hybognathus placitus)SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Suckermouth Minnow
(Phenacobius mirabilis)SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Northern Redbelly Dace
(Phoxinus eos)SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Southern Redbelly Dace
(Phoxinus
erythrogaster)
SE Freshwater riverine and/or
lake habitats.
No. No suitable habitat occurs
within the study area.
Amphibians
Boreal Toad
(Bufo boreas boreas)SE
Mountain lakes, ponds,
meadows, and wetlands in
subalpine forest.
No. Study area is outside the
known distribution for the
species.
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Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
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Table 3: CODEX Listed Species within Study Area
Species Status
*
Habitat Requirements /
Species Information
Potential to Occur
within the Study area?
Mammals
Preble’s
Meadow
Jumping Mouse
(Zapus
hudsonius
preblei)
ST/LT
Preble’s Meadow Jumping Mouse is found
along riparian corridors with access to
running water, tall grasses, and shrubs.
The mice prefer a high plant species
diversity and avoid areas with invasive
species (USFWS 2024).
No. No suitable habitat
occurs within the study
area.
Black-footed
Ferret
(Mustela
nigripes)
SE/LE,
XN
Black-footed ferrets inhabit the
intermountain prairies and grasslands.
They do not appear to be influenced by
vegetation composition, but rather, by the
presence of prairie dogs. Ferrets do not
dig their own burrows and instead modify
existing burrows created by prairie dogs.
As a result, ferrets typically select areas
within prairie dog colonies that contain
high burrow densities. Ferrets generally
need large, contiguous prairie dog colonies
(USFWS 2024).
No. No suitable habitat
occurs within the study
area.
Birds
Golden Eagle
(Aquila
chrysaetos)
None
Golden Eagles live in open and semi-open
country featuring native vegetation across
most of the Northern Hemisphere. They
avoid developed areas and uninterrupted
stretches of forest. They are found
primarily in mountains up to 12,000 feet,
canyonlands, rimrock terrain, and riverside
cliffs and bluffs. Golden Eagles nest on
cliffs and steep escarpments in grassland,
chapparal, shrubland, forest, and other
vegetated areas. (All About Birds).
No. No suitable habitat
occurs within the study
area.
Whooping
Crane (Grus
americana)
SE/LE,
XN
The only remaining naturally occurring
Whooping Crane population spends the
winter on the Gulf Coast and breeds in
Canada's Northwest Territories and
Alberta. The Canadian breeding grounds
lie on poorly drained soil interspersed with
shallow wetlands. The Whooping Cranes
nest in potholes dominated by bulrushes
and containing other aquatic plants such
as cattails, sedge, and muskgrass. These
No. No suitable habitat
occurs within the study
area.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 11
* SE = State Endangered, ST = State Threatened, LE = Federally Endangered, XN = Non-Essential Experimental Population
5.0 ECOLOGICAL CHARACTERIZATION RESULTS
A field habitat survey was conducted October 4, 2024 by Terracon to identify potentially
suitable habitat for state and/or federally protected, threatened and/or endangered species,
and to address Fort Collins Land Use Code Article 5. During the field habitat survey, dominant
plant communities and habitats were characterized and areas containing potentially suitable
protected species habitat (as identified during the resource review) were verified.
5.1 Wildlife Use
During the site survey, a black-tailed prairie dog (Cynomys ludovicianus) colony was observed
throughout much of the site, particularly the west portion. Two red-tailed hawks (Buteo
jamaicensis) were observed feeding at the prairie dog colony and later one was perched on a
white fir (Abies concolor) tree on the site. A cottontail rabbit (Sylvaticus sp.) and deer mouse
(Peromyscus maniculatus) were visually observed, coyote (Canis latrans) scat was observed
on-site, as well as the shed skins of a bullsnake (Pituophis catenifer) and a garter snake
(Thamnophis sp.). Several species of birds were observed during the site survey, including
mourning doves (Zenaida macroura),Say’s phoebes (Sayornis saya), and blue jays
(Cyanocitta cristata)observed perching in the ornamental trees on the west part of the site,
house finches (Haemorhous mexicanus) and American goldfinches (Spinus tristis) feeding on
the common sunflower (Helianthus annuus) seeds at the stormwater detention pond, and
western meadowlarks (Sturnella neglecta) using most of the site. An inactive bird nest was
observed in one of the trees at the west edge of the site.
In addition to the animal species observed using the site for feeding, cover, and nesting during
the site survey, the site is likely utilized by other wildlife as well. These would include other
species of migratory tree- and ground-nesting birds during the avian nesting season, and
wetlands are divided by narrow ridges that
support white and black spruce, tamarack,
willows, dwarf birch, Labrador tea, and
bearberry. On their Texas wintering
grounds, Whooping Cranes spend their
time on estuarine marshes, shallow bays,
and tidal flats, sometimes venturing to
nearby farmland. Salt grass, saltwort,
smooth cordgrass, glasswort, and sea
oxeye dominate the marshes, with Gulf
cordgrass on the margins. Farther inland
in their range are sandy, gently rolling
grasslands with live oak, red bay, and
bluestem plants. Migrating birds feed in
croplands and roost in shallow, freshwater
wetlands (All About Birds).
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 12
meso-predators (i.e. skunks, foxes, and raccoons) utilizing the area year-round for food and
cover.
5.2 Wetlands
Terracon’s review of the NWI did not identify wetland features on the site. The topography of
the site was primarily flat, other than the stormwater detention pond (SDP) on the east portion
of the site. A stormwater sewer outlet was located at the north end of the SDP and a storm
outfall structure was located at the south end of the SDP. Fossil Creek Reservoir Inlet is
mapped offsite as a riverine feature flowing north to south along the east site boundary but
was observed to have no connections to the site. Terracon performed a wetland delineation
to confirm the presence or absence of wetlands on the site. Six data points were collected
across all observed vegetative communities and in the three soil types mapped on the NRCS
Soil Survey map. Wetland delineation forms are shown in Appendix C. No hydrophytic
vegetation, hydric soils, or hydrology indicators were observed, suggesting that no wetland
features exist on the site. As a result, no additional action is necessary.
5.3 Prominent Views
The Front Range foothills are the most prominent visual feature when looking west from the
site. Much of that view is obstructed by Banner Fort Collins Medical Center. To the north and
northeast is a view looking down upon Arapahoe Bend Natural Area, which is an expanse of
ponds and lakes, riparian forests, and open fields. A cluster of gravel pit ponds followed by
Interstate 25 make up the view to the southeast from the site. Apartment buildings are the
most prominent features when looking east (The Wyatt Apartments) and south (Morningside).
There are no known visually sensitive areas (i.e. designated wilderness areas, parks,
recreation areas, wild/scenic rivers, etc.) near the site. Development of the site will interfere
to a degree with the westward view of the east adjacent Wyatt Apartments, but overall visual
impacts will be minimal if the site is developed.
5.4 Native Tress and Vegetation
The only native plant community observed at the site was on the slopes of the stormwater
detention pond located at the east portion of the site. It was dominated by blue grama
(Bouteloua gracilis), sideoats grama (Bouteloua curtipendula), and green needlegrass
(Nassella viridula) with some non-native smooth brome (Bromus inermis) prevalent as well.
A mixed native and non-native plant community occurred at the north portion of the
stormwater detention pond. It was dominated by smooth brome, green needlegrass,
switchgrass (Panicum vigatum), witchgrass (Panicum capillare), common sunflower
(Helianthus annuus), tumbleweed (Salsola tragus), common evening-primrose (Oenothera
biennis), and slender leafy spurge (Euphorbia virgata). Small plains cottonwoods (Populus
deltoides) were starting to grow in this area well.
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 13
5.5 Non-native Trees and Vegetation
Upland areas on the project site were covered primarily by non-native prostrate pigweed
(Amaranthus albus) and to a lesser degree smooth brome (Bromus inermis). These two
communities had very little plant diversity consisting largely of only prostrate pigweed or
smooth brome. Prairie dogs appeared to prefer the smooth brome-dominated community.
Three non-native trees were located on the west edge of the site next to where a house
existed in the past. The observed trees were Norway maple (Acer platanoides), white ash
(Fraxinus americana), and white fir (Abies concolor). An inactive bird nest was present in the
Norway maple and a few different species of birds were observed perching in all three of the
trees during the site survey. The observed trees could serve as potential nesting sites for
migratory birds and other animals.
5.6 Perennial Streams and Water Bodies
No perennial streams or bodies of water occur on the site. However, Fossil Creek Reservoir
Inlet does run north to south near the east site boundary.
5.7 Sensitive or Specially Valued Species
After a review of the USFWS IPaC report, CNHP and CPW CODEX report, and the CPW list of
state threatened and endangered species, followed by a site survey, Terracon identified one
sensitive species, burrowing owl (Athene cunicularia), with the potential to occur in the
project area. Burrowing owls are typically associated with prairie dog colonies because they
use abandoned prairie dog burrows for nesting. The presence of a prairie dog colony on the
site increases the probability of burrowing owl presence.
5.8 Special Habitat Features
A special habitat feature associated with the site includes the presence of a prairie dog
colony, which serves as potential habitat for state-listed threatened burrowing owls.
5.9 Wildlife Movement Corridors
The project site is unlikely to serve as a corridor facilitating the movement of wildlife
between areas of favorable habitat. The east adjacent Fossil Creek Reservoir Inlet likely
serves as an important corridor for wildlife movement between wetlands and other open
spaces near Fossil Creek to areas of favorable habitat near the Cache la Poudre River.
Development of the site should not have any significant impacts on wildlife movement along
Fossil Creek Reservoir Inlet.
5.10 General Ecological Function
The ecological function of the site is limited by the fragmented nature typical of a suburban
environment and overall low-quality of the non-native vegetative cover. However, the
presence of a prairie dog colony and a few trees provides cover and food for a web of other
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 14
wildlife, such as those mentioned in section 5.1, and others that may not have been
observed during the site survey. The site probably also serves as an additional foraging
ground for wildlife traveling along the east adjacent Fossil Creek Reservoir Inlet corridor.
5.11 Issues with Timing of Development Activities
Burrowing owl surveys should be conducted prior to prairie dog control or construction-related
activities if they occur within the burrowing owl breeding season (March 15th through October
31st). Surveys for ground- and tree-nesting birds should be performed prior to vegetation
clearing or other construction-related activities if they are to occur during the migratory bird
nesting season (April 1st through August 31st). See section 5.12 for more detail.
5.12 Natural Habitat or Features Requiring Mitigation
If prairie dog relocation, eradication, or burrow destruction, and/or ground clearing operations
or other surface disturbances are to occur during the burrowing owl nesting season (March
15th through October 31st), a survey prior to construction to confirm the presence or probable
absence of burrowing owl is recommended. This survey would occur prior to construction and
be conducted weekly over the course of three weeks. Because occupancy status can change
for each breeding season, surveys should be performed during each new breeding season. If
an active burrowing owl burrow is identified, CPW recommends a ¼-mile (1,320-foot) ‘no
surface disturbance’ buffer is established around the nest from March 15th through October
31st or until it is confirmed owls have vacated the nest. If construction activities and ground
disturbances are conducted outside the nesting season, there will be no potential for a take.
Additionally, under current guidance covering incidental take under the MBTA, legal activities
resulting in an incidental take while conducting activities in accordance with applicable
beneficial practices for avoiding and minimizing incidental take would not be priority
enforceable activities. In order to avoid incidental take enforcement actions, it is
recommended that the clearing of habitat suitable for migratory birds (ground vegetation,
trees, cattails, etc.) be conducted outside of nesting season. Additionally, when habitat
disturbance is conducted during nesting season, a nest survey should be conducted between
April 1st and August 31st, at least seven days prior to the beginning of clearing, to identify
migratory birds and active nests to avoid during clearing activities. If construction activities
and ground disturbances are conducted outside the nesting season, there will be no potential
for a take under MBTA.
6.0 CONCLUSION AND RECOMMENDATIONS
Terracon performed an Ecological Characterization Study to determine the impacts of
developing the project site with a senior living community. The study was conducted by
reviewing several desktop resources and performing an on-site field survey to collect data
and photographs and record observations. One state-listed sensitive species, burrowing owl,
was observed to have potential to occur on the site. The development of the site will result in
Ecological Characterization Study
Proposed Retirement Community | Fort Collins, Colorado
November 6, 2024 | Terracon Report No. 20247058
Facilities |Environmental | Geotechnical | Materials 15
a low to moderate loss of ecological value to the area due to the low-quality non-native
vegetative community covering most of the site. The ecological value is increased by the
presence of the prairie dog colony that provides cover and foraging opportunities for a myriad
of other wildlife species in the area. Following survey protocols for burrowing owls and
migratory birds described in section 5.12 will lessen the impact on state-listed burrowing owls
(if present) and other birds covered under the MBTA, and keep the client in compliance with
federal, state, and local regulations discussed throughout this Ecological Characterization
Study.
7.0 REFERENCES
Chapman, S.S., Griffith, G.E., Omernik, J.M., Price, A.B., Freeouf, J., and Schrupp, D.L., 2006
Ecoregions of Colorado (color poster with map, descriptive text, summary tables, and
photographs): Reston, Virginia, U.S. Geological Survey (map scale 1:1,200,000).
Characteristics of the Ecoregions of Colorado, U.S. Geological Survey, Available at:
gaftp.epa.gov/EPADataCommons/ORD/Ecoregions/co/co_back.pdf.
Colorado Natural Heritage Program (CHNP). 2023. Colorado’s Conservation Data Explorer.
Available at: https://codex.cnhp.colostate.edu/
Colorado Parks and Wildlife (CPW). 2023a. State Threatened and Endangered Species List.
Available at: https://cpw.state.co.us/learn/Pages/SOC-ThreatenedEndangeredList.aspx
CPW. 2023b. Wildlife Species Map Application. Available at:
https://cpw.maps.arcgis.com/apps/instant/interactivelegend/index.html?appid=b3e1f4c17e98
481c85f9683b02e91250
CPW. 2020. Recommended Buffer Zones and Seasonal Restrictions for Colorado Raptors.
Available at: https://cpw.state.co.us/Documents/WildlifeSpecies/LivingWithWildlife/Raptor-
Buffer-Guidelines.pdf
Nature Serve Explorer Search (NSE). NatureServe Explorer 2.0. Available At:
https://explorer.natureserve.org/Search
United States Fish and Wildlife Service (USFWS). 2023. Environmental Conservation Online
System. Available at: https://ipac.ecosphere.fws.gov/
Facilities |Environmental | Geotechnical | Materials
APPENDIX A
Exhibits
L
G /
L
7
W ldl fe
Facilities |Environmental | Geotechnical | Materials
APPENDIX B
IPaC / CODEX
Project Review Report
Project Description
Proposed retirement community in Fort Collins, Colorado
Project Information
Report Generation Date: 9/3/2024 08:54:11 AM
Project Title: Proposed Retirement Community (20247058)
User Project Number(s):
System Generated ID: CODEX-4374
Project Type: Development/Redevelopment, Residential
Project Size: 18.92 (acres)
Latitude/Longitude: 40.520714 / -105.005396
County(s):LARIMER
Watershed(s) HUC 8:Cache La Poudre
Township/Range and/or Section(s):006N068W - 04 - 6P
Contact Information
Organization: Terracon
Contact Name: Travis Whalen
Contact Phone: 303-587-1302
Contact Email: travis.whalen@terracon.com
Contact Address: 1831 Lefthand Circle, Suite B, Longmont, CO 80501
Submitted On Behalf Of: PRIVATE
Prepared By:
Page 1 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Project Report:
The information contained herein represents the results of a search of Colorado's Conservation Data
Explorer (CODEX) and can be used as notice to anticipate possible impacts or identify areas of interest.
This tool queries multiple conservation datasets and includes a synthesis of Colorado Natural Heritage
Program (CNHP) and Colorado Parks and Wildlife (CPW) data for sensitive animal and plant species and
natural communities. Care should be taken in interpreting these data.
Please note that the absence of data for a particular area, species, or habitat does not necessarily mean
that these natural heritage resources do not occur on or adjacent to the project site, rather that our files
do not currently contain information to document their presence. CODEX information should not replace
field studies necessary for more localized planning efforts, especially if impacts to wildlife habitat are
possible. Although every attempt is made to provide the most current and precise information possible,
please be aware that some of our sources provide a higher level of accuracy than others, and some
interpretation may be required. CODEX data is constantly updated and revised. Please contact CNHP,
CPW and our partners for assistance with interpretation of this report or to obtain more information.
Disclaimer:
1. This is a preliminary environmental screening tool. It is not a substitute for the potential
knowledge gained by having a biologist conduct a field survey of the project area.This review
does not constitute environmental consultation (including federal consultation under the
Endangered Species Act), land use permitting, or the review of site-specific projects by
CNHP and CPW and our partners.
2. This Project Report is based on the project study area that was entered. The report must be
updated if the project study area, location, or the type of project changes.
3. The Conservation Data Explorer (CODEX) data is constantly changing and being updated and is
not intended to be the final word on the potential distribution of special status species. Colorado is
large and diverse with plants, animals, and environmental conditions that are ever changing.
Consequently, many areas may contain species that biologists do not know about or species
previously noted in a particular area may no longer occur there. CODEX data contains
information about species occurrences that have actually been reported to CNHP, CPW and our
partners. Not all of Colorado has been surveyed for special status species, and surveys that have
been conducted have varied greatly in scope and intensity. Such surveys may reveal previously
undocumented population of species of special concern.
Page 2 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Location Accuracy Disclaimer:
Project locations are assumed to be both precise and accurate for the purposes of environmental review.
The creator/owner of the Project Review Report is solely responsible for the project location and thus the
correctness of the Project Review Report content.
Contact for CODEX Support:
Colorado Natural Heritage Program (CNHP)
CNHP
Colorado State University
1475 Campus Delivery
Fort Collins, CO 80523-1475
Tel:(970) 491-7331
Email:CNHP_codex_support@mail.colostate.edu
CNHP Website: cnhp.colostate.edu
Colorado Parks and Wildlife
For support regarding project review of land use impacts to wildlife, please contact the regional office in
which your project resides and visit https://cpw.state.co.us/conservation/Pages/CON-Energy-Land.aspx
CPW Website :cpw.state.co.us Northeast Region
Denver Office
6060 Broadway
Denver, CO 80216
Tel:(303) 291-7227
Northwest Region
Grand Junction Office
711 Independent Avenue
Grand Junction, CO 81505
Tel:(970) 255-6100
Southeast Region
Colorado Springs Office
4255 Sinton Road
Colorado Springs, CO 80907
Tel:(719) 227-5200
Southwest Region
Durango Office
151 East 16th Street
Durango, CO 81301
Tel:(970) 247-0855
For questions regarding CPW data in CODEX please contact 303-291-7152 or matt.schulz@state.co.us
Page 3 of 15
Colorado’s Conservation Data Explorer Project Review Report
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Colorado’s Conservation Data Explorer Project Review Report
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Colorado’s Conservation Data Explorer Project Review Report
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Colorado’s Conservation Data Explorer Project Review Report
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Regulatory Species
Table 1. Documented Occurrences Within 1 Miles Of Project Area
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
Viability
Rank
Last
Observation
ESA
Status
CO
Status
Other
Status
CNHP
Identifier
Data
Source
Birds Haliaeetus leucocephalus Bald Eagle CPW Nest Sites G5 S3B,S3N SC BGEPA/BLM/SWA
P Tier 2/USFS
CPW 20
221213
Birds Haliaeetus leucocephalus Bald Eagle CPW Winter
Concentration Area
G5 S3B,S3N SC BGEPA/BLM/SWA
P Tier 2/USFS
CPW 20
221213
Table 2. Potential Regulatory Species within Project Area: Models, Range Maps, or Records with Low Precision
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
ESA
Status
CO
Status
Other
Status
Data
Source
Birds Aquila chrysaetos Golden Eagle CPW Breeding Range G5 S3S4B,S
4N
BGEPA/SWAP Tier 1 CPW 20221213
Birds Grus americana Whooping Crane CNHP General EO G1 SNA LE, XN SE SWAP Tier 2 CNHP 20221028
Mammals Mustela nigripes Black-footed Ferret CNHP General EO G1 S1 LE, XN SE SWAP Tier 1 CNHP 20221028
Mammals Zapus hudsonius preblei Meadow Jumping Mouse Subsp CPW Overall Range G5T2 S1 LT ST SWAP Tier 1 CPW 20221213
Table 3. Fish & Wildlife Service Critical Habitats within 1 Miles of Project Area
No results were found for this project area.
Other Species of Concern
Table 4. Documented Occurrences within 1 Miles of Project Area: Rare Species, Natural Communities, and Species of Economic, Recreational or Conservation
Value
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
Viability
Rank
Last
Observation
ESA
Status
CO
Status
Other
Status
CNHP
Identifier
Data
Source
Amphibians Lithobates pipiens Northern Leopard Frog CNHP EO G5 S3 H 1968-05-11 SC BLM/SWAP Tier
1/USFS
16297 CNHP 20
221028
Birds Ardea herodias Great Blue Heron CPW Nesting Area G5 S3B CPW 20
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Colorado’s Conservation Data Explorer Project Review Report
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Table 4. Documented Occurrences within 1 Miles of Project Area: Rare Species, Natural Communities, and Species of Economic, Recreational or Conservation
Value
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
Viability
Rank
Last
Observation
ESA
Status
CO
Status
Other
Status
CNHP
Identifier
Data
Source
221213
Birds Branta canadensis Canada Goose CPW Production
Area
G5 S5 CPW 20
221213
Birds Branta canadensis Canada Goose CPW Winter
Concentration Area
G5 S5 CPW 20
221213
Birds Meleagris gallopavo Wild Turkey CPW Production
Area
G5 S5 CPW 20
221213
Fish Etheostoma exile Iowa Darter CPW HUC12
Presence
G5 S3 SC SWAP Tier 2 CPW 20
221213
Fish Fundulus sciadicus Plains Topminnow CPW HUC12
Presence
G4 S4 SWAP Tier 1 CPW 20
221213
Fish Lepomis humilis Orangespotted Sunfish CPW HUC12
Presence
G5 S5 SWAP Tier 1 CPW 20
221213
Insects Boloria selene sabulocollis Sandhill Fritillary CNHP EO G5T3 S1S2 H 1978-07-21 8013 CNHP 20
221028
Mammals Odocoileus virginianus White-tailed Deer CPW
Concentration Area
G5 S5 CPW 20
221213
Mammals Odocoileus virginianus White-tailed Deer CPW Highway
Crossing
G5 S5 CPW 20
221213
Mammals Puma concolor Mountain Lion CPW Human
Conflict Area
G5 S4 CPW 20
221213
Natural
Communities
Populus deltoides / Carex
pellita Floodplain Woodland
Plains Cottonwood Riparian
Woodland
CNHP EO G2 S2 B 1996-09-03 12606 CNHP 20
221028
Natural
Communities
Populus deltoides / Carex
pellita Floodplain Woodland
Plains Cottonwood Riparian
Woodland
CNHP EO G2 S2 C 1996-09-03 12480 CNHP 20
221028
Table 5. Potential Occurrences within Project Area: Models, Range Maps, or Records with Low Precision
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
ESA
Status
CO
Status
Other
Status
Data
Source
Birds Ammodramus savannarum Grasshopper Sparrow CPW Breeding Range G5 S3S4B SWAP Tier 2/USFS CPW 20221213
Birds Athene cunicularia Burrowing Owl CPW Breeding Range G4 S4B ST BLM/SWAP Tier
1/USFS
CPW 20221213
Birds Botaurus lentiginosus American Bittern CPW Breeding Range G5 S3S4B SWAP Tier 2/USFS CPW 20221213
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Colorado’s Conservation Data Explorer Project Review Report
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Table 5. Potential Occurrences within Project Area: Models, Range Maps, or Records with Low Precision
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
ESA
Status
CO
Status
Other
Status
Data
Source
Birds Branta canadensis Canada Goose CPW Foraging Area G5 S5 CPW 20221213
Birds Branta canadensis Canada Goose CPW Winter Range G5 S5 CPW 20221213
Birds Buteo regalis Ferruginous Hawk CPW Breeding Range G4 S3B,S4N SC BLM/SWAP Tier
2/USFS
CPW 20221213
Birds Buteo swainsoni Swainson's Hawk CPW Breeding Range G5 S5B SWAP Tier 2 CPW 20221213
Birds Calamospiza melanocorys Lark Bunting CPW Breeding Range G5 S4 SWAP Tier 2 CPW 20221213
Birds Catharus fuscescens Veery CPW Breeding Range G5 S3B SWAP Tier 2 CPW 20221213
Birds Charadrius montanus Mountain Plover CPW Breeding Range G3 S2B SC BLM/SWAP Tier
1/USFS
CPW 20221213
Birds Circus hudsonius Northern Harrier CPW Breeding Range G5 S3B SWAP Tier 2/USFS CPW 20221213
Birds Dolichonyx oryzivorus Bobolink CPW Breeding Range G5 S3B SWAP Tier 2 CPW 20221213
Birds Falco mexicanus Prairie Falcon CPW Breeding Range G5 S4B,S4N SWAP Tier 2 CPW 20221213
Birds Leucosticte atrata Black Rosy-finch CPW Winter Range G4 S4N SWAP Tier 2 CPW 20221213
Birds Leucosticte australis Brown-capped Rosy-finch CPW Overall Range G4 S3B,S4N SWAP Tier 1 CPW 20221213
Birds Melanerpes lewis Lewis's Woodpecker CPW Breeding Range G4 S4 SWAP Tier 2/USFS CPW 20221213
Birds Numenius americanus Long-billed Curlew CPW Breeding Range G5 S2B SC BLM/SWAP Tier
2/USFS
CPW 20221213
Birds Peucaea cassinii Cassin's Sparrow CPW Breeding Range G5 S4B SWAP Tier 2/USFS CPW 20221213
Birds Selasphorus rufus Rufous Hummingbird CPW Migration Range G4 SNA SWAP Tier 2 CPW 20221213
Birds Spizella breweri Brewer's Sparrow CPW Breeding Range G5 S4B BLM/SWAP Tier
2/USFS
CPW 20221213
Birds Vermivora virginiae Virginia's Warbler CPW Breeding Range G5 S5 SWAP Tier 2 CPW 20221213
Insects Agapema homogena A Giant Silkmoth Range Map - present G4 S2 SWAP Tier 2 CNHP 20210615
Insects Argia alberta Paiute Dancer Range Map - present G4 S4 SWAP Tier 2 CNHP 20210615
Insects Boloria selene sabulocollis Sandhill Fritillary Range Map - within range G5T3 S1S2 CNHP 20210615
Insects Bombus (Thoracobombus)
pensylvanicus (Bombus
pensylvanicus)
American Bumble Bee Range Map - within range G3G4 S2S3 SWAP Tier 2 CNHP 20210615
Insects Calopteryx maculata Ebony Jewelwing Range Map - present G5 S1 SWAP Tier 2 CNHP 20210615
Insects Danaus plexippus Monarch Range Map - present G4 S5 SWAP Tier 2 CNHP 20210615
Insects Euphyes bimacula Two-spotted Skipper Range Map - within range G4 S2 SWAP Tier 2 CNHP 20210615
Insects Euproserpinus wiesti Wiest's Sphinx Moth Range Map - within range G3 S2 SWAP Tier 2 CNHP 20210615
Insects Polites origenes Cross-line Skipper Range Map - within range G5?S3 CNHP 20210615
Mammals Cynomys ludovicianus Black-tailed Prairie Dog CPW Overall Range G4 S3 SC BLM/SWAP Tier CPW 20221213
Page 9 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Table 5. Potential Occurrences within Project Area: Models, Range Maps, or Records with Low Precision
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
ESA
Status
CO
Status
Other
Status
Data
Source
2/USFS
Mammals Cynomys ludovicianus Black-tailed Prairie Dog CPW Potential Occurrence G4 S3 SC BLM/SWAP Tier
2/USFS
CPW 20221213
Mammals Eptesicus fuscus Big Brown Bat CPW Overall Range G5 S5 CPW 20221213
Mammals Lasionycteris noctivagans Silver-haired Bat CPW Overall Range G3G4 S3S4 CPW 20221213
Mammals Lasiurus borealis Eastern Red Bat CPW Overall Range G3G4 S2S3B CPW 20221213
Mammals Lasiurus cinereus Hoary Bat CPW Overall Range G3G4 S3S4B SWAP Tier 2/USFS CPW 20221213
Mammals Lepus townsendii White-tailed Jackrabbit CPW Overall Range G5 S4 SWAP Tier 2 CPW 20221213
Mammals Myotis ciliolabrum Western Small-footed Myotis CPW Overall Range G5 S4 CPW 20221213
Mammals Myotis evotis Long-eared Myotis CPW Overall Range G5 S4 CPW 20221213
Mammals Myotis lucifugus Little Brown Myotis CPW Overall Range G3G4 S4 SWAP Tier 1 CPW 20221213
Mammals Myotis thysanodes Fringed Myotis CPW Overall Range G4 S3 BLM/SWAP Tier
1/USFS
CPW 20221213
Mammals Myotis volans Long-legged Myotis CPW Overall Range G4G5 S5 CPW 20221213
Mammals Odocoileus hemionus Mule Deer CPW Overall Range G5 S4 CPW 20221213
Mammals Odocoileus hemionus Mule Deer CPW Winter Range G5 S4 CPW 20221213
Mammals Odocoileus virginianus White-tailed Deer CPW Overall Range G5 S5 CPW 20221213
Mammals Perimyotis subflavus Tricolored Bat CPW Overall Range G3G4 S2 CPW 20221213
Mammals Perognathus fasciatus Olive-backed Pocket Mouse CPW Overall Range G5 S3 SWAP Tier 1 CPW 20221213
Mammals Perognathus fasciatus Olive-backed Pocket Mouse Range Map - within range G5 S3 SWAP Tier 1 CNHP 20210615
Mammals Ursus americanus Black Bear CPW Overall Range G5 S5 CPW 20221213
Reptiles Aspidoscelis sexlineata Six-lined Racerunner CPW Overall Range G5 S5 CPW 20221213
Reptiles Chelydra serpentina Snapping Turtle CPW Overall Range G5 S4 CPW 20221213
Reptiles Chrysemys picta Painted Turtle CPW Overall Range G5 S5 CPW 20221213
Reptiles Coluber constrictor Racer CPW Overall Range G5 S5 CPW 20221213
Reptiles Crotalus oreganus Western Rattlesnake CPW Overall Range G5 SNR CPW 20221213
Reptiles Crotalus viridis Western Rattlesnake CPW Overall Range G5 S5 CPW 20221213
Reptiles Heterodon nasicus Plains Hognose Snake CPW Overall Range G5 S4 CPW 20221213
Reptiles Holbrookia maculata Lesser Earless Lizard CPW Overall Range G5 S5 CPW 20221213
Reptiles Lampropeltis gentilis Central Plains Milk Snake CPW Overall Range G5 S5 SWAP Tier 2 CPW 20221213
Reptiles Nerodia sipedon Northern Water Snake CPW Overall Range G5 S4 CPW 20221213
Reptiles Phrynosoma hernandesi Hernandez's Short-horned Lizard CPW Overall Range G5 S5 CPW 20221213
Reptiles Pituophis catenifer sayi Bullsnake CPW Overall Range G5T5 S5 CPW 20221213
Reptiles Plestiodon multivirgatus Many-lined Skink CPW Overall Range G5 S4 CPW 20221213
Page 10 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Table 5. Potential Occurrences within Project Area: Models, Range Maps, or Records with Low Precision
Major
Group Scientific Name Common Name Data Type
Global
Rarity
State
Rarity
ESA
Status
CO
Status
Other
Status
Data
Source
Reptiles Sceloporus consobrinus Fence/prairie/plateau Lizard CPW Overall Range G5 S5 CPW 20221213
Reptiles Sceloporus tristichus Southern Plateau Lizard CPW Overall Range G5 S3 CPW 20221213
Reptiles Terrapene ornata ornata Ornate Box Turtle CPW Overall Range G5T5 S5 CPW 20221213
Reptiles Thamnophis elegans Western Terrestrial Garter Snake CPW Overall Range G5 S5 CPW 20221213
Reptiles Thamnophis radix Plains Garter Snake CPW Overall Range G5 S5 CPW 20221213
Reptiles Thamnophis sirtalis Common Garter Snake CPW Overall Range G5 S3 SC SWAP Tier 2 CPW 20221213
Special Areas and Land Status
Table 6. CNHP Potential Conservation Areas and Other Special Areas within 1 Miles of Project Area
Name Data Type
CNHP
Biodiversity Rank CNHP Edit Date CNHP Identifier Data Source
Aquatic Native Species Conservation Waters SB181 High Priority Habitat CPW 20220528
Aquatic Sportfish Management Waters SB181 High Priority Habitat CPW 20220528
Bald Eagle Active Nest Site - Half Mile Buffer SB181 High Priority Habitat CPW 20220528
Bald Eagle Roost or Communal Roost SB181 High Priority Habitat CPW 20220528
Table 7. Managed Areas within Project Area
Name Owner Manager Management Description
Public
Access*
Protection
Mechanism Easement Holder Data Source
PRIVATE PRIVATE Private Land No NA COMaP
20230223
*It is the responsibility of the user to verify public access on any site as access can change over time. Entering an area that is not open to the public subjects an individual to possible
sanctions for trespass under Colorado law.
Water and Wetlands
Page 11 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Table 8. National Wetland Inventory (NWI) Features within Project Area
No results were found for this project area.
Project Report Appendix
Please visit the CNHP website for a more extensive collection of definitions for CODEX reports in addition to what is provided here below.
About CNHP Data
One of CNHP's core research activities is managing a statewide database that details the locations of rare and imperiled species and natural plant
communities in Colorado. We gather data from CNHP surveys and monitoring projects, as well as from partners and other trusted sources like
herbariums. All of our data are compiled and managed in the Biodiversity Information Management System (Biotics), a web-enabled database
platform hosted by NatureServe. The species and natural plant communities we track are assigned global and state imperilment ranks based on
rarity, threats, and trends, and their locations are mapped as element occurrences. Element occurrences include spatial data as well as details on
condition, size, and landscape context. This information allows us to track both overall distribution and site-specific details describing how well
elements are thriving at each location. We use element occurrences to delineate Potential Conservation Areas that represent the primary area
needed to support the element occurrences, and often include additional suitable habitat or buffers from disturbance.Please visit the CNHP website
for more definitions and details related to CNHP data in CODEX.
CODEX Report Definitions
CNHP Biodiversity Rank – The significance of a potential conservation
area in terms of its biological diversity ranging from B1 (Outstanding
Biodiversity significance meaning protection of this potential conservation
area can prevent a species from going extinct) to B5 (General interest or
open space for more globally secure species).
Managed Areas Name – Name of the managed area.
Manager – The general land Manager.
Management Description - The general category of how the feature is
managed.
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Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
CNHP Edit Date– The date the CNHP potential conservation area record
was last updated.
CNHP Identifier– A unique identifier for each CNHP data type,
applicable only to CNHP data records.
CO Status – State status per Colorado Parks & Wildlife: Endangered
(SE), Threatened (ST), or State Special Concern (SC).
Common Name – The common name of the species or plant community.
Critical Habitat Status – Critical habitat status for federally listed
species under the Endangered Species Act.
Proposed – Proposed critical habitat
Final – Final critical habitat
Critical Habitat Federal Register- The volume number and first page of
the federal register publication describing the critical habitat.
Critical Habitat Publication Date - Federal Register publication date.
Data Source – The agency and date of the data provided.
Data Type –
CNHP EO – A location in which an element is, or was, present.
CNHP General EO – An element occurrence with imprecise
directions; broadly mapped and typically historical or extirpated.
Other Species of Concern – Other globally rare species and plant
communities, BLM or USFS sensitive species, state listed species, or
Tier 1 and Tier 2 priority species from Colorado’s State Wildlife Action
Plan, and species of economic and recreational value.
Other Status – Other status such as BLM sensitive species (BLM), U.S
Forest Service sensitive species (USFS), and Tier 1 and Tier 2 priority
species from Colorado’s State Wildlife Action Plan (SWAP Tier 1, SWAP
Tier 2).
Owner – The general land owner.
Public Access – Level of public access to the feature.
Protection Mechanism – Any mechanism of protection assigned to the
managed area.
Regulatory Species – Species with federal protection under the
Endangered Species Act or Bald and Golden Eagle Protection Act along
with FWS designated critical habitat.
Return on Investment Report - Provides maps and the estimated
annual benefit in dollars of conserved ecosystem services by ecosystem
type within the project area in PDF format. Ecosystem types are derived
from the 2016 National Land Cover Database (NLCD).
Scientific Name – The scientific name of the species or plant community
Special Areas and Land Status – CNHP Potential Conservation Areas
Page 13 of 15
Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
CNHP Observation – Sightings of species on CNHP's watchlist
or sightings of tracked elements that do not meet the minimum criteria
necessary to make an occurrence.
CNHP PCA – Areas in the state contributing to Colorado’s
biological diversity.
CNHP Model – Modeled presumed presence or habitat for a
particular species.
CNHP PCA (Important Plant Area) – B1 or B2 CNHP potential
conservation area supporting globally rare plants.
CNHP Range Map – Overall range for a particular species by
HUC 10 and HUC 12 for aquatics.
Important Bird Area – The most important places for birds as
identified by the National Audubon Society.
State Natural Area - Areas that contain at least one unique or
high-quality natural feature of statewide significance as designated by the
Colorado Natural Areas Program.
CPW <description> - CPW data with a long list of data types:
observations, nest sites, leks, etc.
Easement Holder – Organization or agency holding an easement (if
present).
ESA Status – Federal status under the Endangered Species Act:
(PCA),State Designated Natural Areas,Important Bird Areas, and
managed lands from the Colorado Ownership, Management and
Protection database (COMaP), SB181 High Priority Habitat
Special Areas Name – The name of the special area.
State Rarity - The rarity rank used by CNHP and The Natural Heritage
Network to track how rare a species or plant community is in Colorado,
ranging from S1 (rarest) to S5 (most common).
Viability Rank – The estimated viability of the species or ecological
integrity of the natural community based on condition, size, and
landscape context, ranging from A (excellent) to D (poor).
Water and Wetlands – Wetland types from the National Wetland
Inventory database.
Class - The general appearance of the habitat in terms of either the
dominant life form of the vegetation, or the physiography and
composition of the substrate.
Modifier - Modifier assigned to further describe wetlands and deepwater
habitats within the classification hierarchy based on water chemistry or
ph, wetland or deepwater alteration, or soil type.
NWI Code – An alpha-numeric code corresponding to the classification
nomenclature that best describes a particular wetland habitat. For more
information on NWI data values, visit
https://www.fws.gov/wetlands/data/wetland-codes.html
System – A complex of wetlands and deepwater habitats that share the
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Colorado’s Conservation Data Explorer Project Review Report
Project ID: CODEX-4374 Review Date: 9/3/2024 08:54:11 AM
Endangered (E), Threatened (T), or Federal Candidate (C) with qualifiers
for Partial Status (PS) and experimental populations (XN).
Global Rarity – The rarity rank used by CNHP and The Natural Heritage
Network to track how rare a species or plant community is globally,
ranging from G1 (rarest) to G5 (most common).
Last Observation – The most recent field observation.
Major group – The major group in which the element falls: Amphibians,
Birds, Crayfish, Fish, Insects, Mammals, Mollusks, Natural Communities,
Nonvascular Plants, Reptiles, and Vascular Plants.
influence of similar hydrologic, geomorphologic, chemical or biological
factors.
Water Regime - Description of water duration within a wetland habitat.
Wetland Total Acres - Total acres of the wetland type in the project
area.
Wetland Type – The generalized Cowardin wetland type.
Page 15 of 15
Facilities |Environmental | Geotechnical | Materials
APPENDIX C
Site Photographs
Ecological Characterization Study
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
1. RPP-01: View of smooth brome-dominated
(Bromus inermis) vegetative community from
southwest part of site, facing north.
2. RPP-02: View of prostrate pigweed-dominated
(Amaranthus albus) vegetative community
southwest-central part of site, facing east.
3. RPP-03: View of native grass-dominated
vegetative community at stormwater detention
pond near southeast part of site, facing south.
4. View of native and non-native mixed vegetative
community at north end of stormwater detention
pond, facing south.
5. View of non-native trees at west edge of site,
facing south.
6. View of bird nest in Norway maple (Acer
platanoides) at west edge of site.
Ecological Characterization Study
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
7. One of many black-tailed prairie dogs
(Cynomys ludovicianus), and burrow, found
throughout site.
8. View of Fossil Creek Reservoir Inlet from
northeast corner of site, facing southeast.
9. View of storm sewer outlet at north end of
stormwater detention pond, facing northwest.
10. View of stormwater outfall structure at south
end of stormwater detention pond.
Facilities |Environmental | Geotechnical | Materials
APPENDIX D
Wetland Determination Data Forms
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):1
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
Sample point dominated by Bromus inermis and Convolulus arvensis.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.007057Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
0
100
(Plot size:
upland plain
Absolute
% Cover)
LRR G 40.520409
significantly disturbed?
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
0
500
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
100
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
0
0
0
S44, T6N, R68W
none
none73 - Nunn clay loam, 0 to 1 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-01
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
No
Multiply by:
500
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
5.00
100
0
3 - Prevalence Index is 3.01
UPL
)15'
)
=Total Cover
Yes
% Bare Ground in Herb Stratum
=Total Cover
80
UPL
Bromus inermis
Convolvulus arvensis 20 Yes
=Total Cover
2
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
HYDROLOGY
Clayey loam with roots
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
0-16 Loamy/Clayey
Redox Features
Color (moist)
Matrix
Texture
(includes capillary fringe)
SOIL UDP-01
Restrictive Layer (if observed):
Field Observations:
10YR 4/2
Remarks
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 01
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-01 facing north UDP-01 facing east
UDP-01 facing south UDP-01 facing west
UDP-01 soil profile
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):1
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
Sample point dominated by Bromus inermis.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.00715Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
0
85
(Plot size:
upland plain
Absolute
% Cover)
LRR G 40.521613
significantly disturbed?
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
0
425
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
85
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
0
0
0
S44, T6N, R68W
none
none73 - Nunn clay loam, 0 to 1 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-02
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
No
Multiply by:
425
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
5.00
85
0
3 - Prevalence Index is 3.01
UPL
)15'
)
=Total Cover
Yes
15% Bare Ground in Herb Stratum
=Total Cover
70
UPL
Bromus inermis
Convolvulus arvensis 15 No
=Total Cover
1
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
Loamy/Clayey
(includes capillary fringe)
SOIL UDP-02
Restrictive Layer (if observed):
Field Observations:
10YR 3/3
RemarksTexture
0-12 Loamy/Clayey
Redox Features
12-16
Color (moist)
Matrix
HYDROLOGY
Clayey loam with roots
clay with roots
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
10YR 4/4
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 02
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-02 facing north UDP-02 facing east
UDP-02 facing south UDP-02 facing west
UDP-02 soil profile
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):3
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
Sample point dominated by Amaranthus albus.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.005472Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
87
3
(Plot size:
berm
Absolute
% Cover)
LRR G 40.521923
significantly disturbed?
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
348
15
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
90
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
0
0
0
S44, T6N, R68W
convex
none62 - Larimer-Stoneham complex, 3 to 10 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-03
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
No
Multiply by:
363
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
4.03
90
0
3 - Prevalence Index is 3.01
FACU
)15'
)
=Total Cover
Yes
10% Bare Ground in Herb Stratum
=Total Cover
87
UPL
Amaranthus albus
Festuca idahoensis 3 No
=Total Cover
1
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
Loamy/Clayey
(includes capillary fringe)
SOIL UDP-03
Restrictive Layer (if observed):
Field Observations:
10YR 5/3
RemarksTexture
0-2 Loamy/Clayey
Redox Features
2-14
Color (moist)
Matrix
HYDROLOGY
Loam
Loam
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
10YR 4/2
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 03
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-03 facing north UDP-03 facing east
UDP-03 facing south UDP-03 facing west
UDP-03 soil profile
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):3
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
1
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
Amaranthus albus
=Total Cover
85
)15'
)
=Total Cover
Yes
15% Bare Ground in Herb Stratum
=Total Cover
No
Multiply by:
340
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
4.00
85
0
3 - Prevalence Index is 3.01
FACU
S44, T6N, R68W
none
none62 - Larimer-Stoneham complex, 3 to 10 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-04
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
85
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
0
0
0
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
340
0
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
upland plain
Absolute
% Cover)
LRR G 40.520954
significantly disturbed?
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.005308Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
85
0
(Plot size:
Sample point dominated by Amaranthus albus.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
HYDROLOGY
Loam
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
0-14 Loamy/Clayey
Redox Features
Color (moist)
Matrix
Texture
(includes capillary fringe)
SOIL UDP-04
Restrictive Layer (if observed):
Field Observations:
10YR 4/3
Remarks
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 04
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-04 facing north UDP-04 facing east
UDP-04 facing south UDP-04 facing west
UDP-04 soil profile
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):5
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
Sample point dominated by Nassella viridula and Bouteloua gracilis.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.003953Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
0
80
(Plot size:
stormwater detention pond
Absolute
% Cover)
LRR G 40.520287
significantly disturbed?
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
0
400
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
80
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
15
0
0
0
S44, T6N, R68W
none
none62 - Larimer-Stoneham complex, 3 to 10 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-05
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
No
Multiply by:
400
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
5.00
80
0
3 - Prevalence Index is 3.01
UPL
)15'
)
=Total Cover
Yes
20% Bare Ground in Herb Stratum
No5
=Total Cover
40
UPL
No
UPL
Convolvulus arvensis UPL
Bromus inermis
Nassella viridula
Bouteloua gracilis 20 Yes
=Total Cover
2
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
HYDROLOGY
Loam with roots
Loamy clay with calcium deposits
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
10YR 6/4
0-4 Loamy/Clayey
Redox Features
4-14
Color (moist)
Matrix
Texture
Loamy/Clayey
(includes capillary fringe)
SOIL UDP-05
Restrictive Layer (if observed):
Field Observations:
10YR 4/2
Remarks
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 05
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-05 facing north UDP-05 facing east
UDP-05 facing south UDP-05 facing west
UDP-05 soil profile
Project/Site:
Applicant/Owner:
Landform (hillside, terrace, etc.):2
Subregion (LRR/MLRA):Lat:
Soil Map Unit Name:NWI classification:
X
Are Vegetation , Soil , or Hydrology Are “Normal Circumstances” present?Yes X No
Are Vegetation , Soil , or Hydrology
SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Yes X
Yes X Yes X
Yes X
1.
2.(A)
3.
4.(B)
Sapling/Shrub Stratum (A/B)
1.
2.
3.
4.OBL species x 1 =
5.FACW species x 2 =
FAC species x 3 =
Herb Stratum (Plot size:FACU species x 4 =
1.UPL species x 5 =
2.Column Totals:(A)(B)
3.Prevalence Index = B/A =
4.
5.
6.
7.
8.
9.
Woody Vine Stratum (Plot size:
1.
2.
Yes X
2
No
naturally problematic? (If needed, explain any answers in Remarks.)
Indicator
StatusSpecies?
Number of Dominant Species That
Are OBL, FACW, or FAC:0
Bromus inermis
Amaranthus albus 30 Yes
=Total Cover
50
No
FACU
Convolvulus arvensis UPL
)15'
)
=Total Cover
Yes
15% Bare Ground in Herb Stratum
=Total Cover
No
Multiply by:
395
1 - Rapid Test for Hydrophytic Vegetation
2 - Dominance Test is >50%
1Indicators of hydric soil and wetland hydrology must
be present, unless disturbed or problematic.
Problematic Hydrophytic Vegetation1 (Explain)
0
4.65
85
0
3 - Prevalence Index is 3.01
UPL
S44, T6N, R68W
none
none74 - Nunn clay loam, 1 to 3 percent slopes
Yes No (If no, explain in Remarks.)
Proposed Retirement Community Sampling Date: 10/4/2024
Touchmark Development & Construction Co.Sampling Point:CO UDP-06
City/County: Fort Coliins/Larimer County
NAD83Datum:
Section, Township, Range:Travis Whalen
Local relief (concave, convex, none):
Are climatic / hydrologic conditions on the site typical for this time of year?
Slope (%):
85
data in Remarks or on a separate sheet)
Hydrophytic
Vegetation
Present?
=Total Cover
Total % Cover of:
Prevalence Index worksheet:
0
5
0
0
0
4 - Morphological Adaptations1 (Provide supporting
No
No
VEGETATION – Use scientific names of plants.
Tree Stratum (Plot size:
Is the Sampled Area
within a Wetland?
120
275
Percent of Dominant Species That
Are OBL, FACW, or FAC:
Total Number of Dominant Species
Across All Strata:
upland plain
Absolute
% Cover)
LRR G 40.519722
significantly disturbed?
U.S. Army Corps of Engineers
WETLAND DETERMINATION DATA SHEET – Great Plains Region
See ERDC/EL TR-10-1; the proponent agency is CECW-CO-R
OMB Control #: 0710-0024, Exp: 11/30/2024
Requirement Control Symbol EXEMPT:
(Authority: AR 335-15, paragraph 5-2a)
-105.005423Long:
No
Remarks:
Hydrophytic Vegetation Indicators:
30
55
(Plot size:
Sample point dominated by Bromus inermis and Amaranthus albus.
Remarks:
Hydrophytic Vegetation Present?
Hydric Soil Present?
Wetland Hydrology Present?
30'
5'
Dominance Test worksheet:
15')0.0%
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Sampling Point:
%%Type1 Loc2
100
(LRR H outside of MLRA 72 & 73)
Loamy Gleyed Matrix (F2)
Type:
Depth (inches):Hydric Soil Present?Yes No X
Primary Indicators (minimum of one is required; check all that apply)
Surface Water Present?Yes X
Water Table Present?Yes X
Saturation Present?Yes X Wetland Hydrology Present?Yes No X
Redox Depressions (F8)
Salt Crust (B11)
1 cm Muck (A9)(LRR I, J)
High Plains Depressions (F16)
Reduced Vertic (F18)
Red Parent Material (F21)
Very Shallow Dark Surface (F22)
Other (Explain in Remarks)
Surface Soil Cracks (B6)
2.5 cm Mucky Peat or Peat (S2)(LRR G, H)
5 cm Mucky Peat or Peat (S3)(LRR F)
Sandy Mucky Mineral (S1)
No hydric soil indicators present.
Surface Water (A1)
Wetland Hydrology Indicators:
Secondary Indicators (minimum of two required)
High Plains Depressions (F16)
(MLRA 72 & 73 of LRR H)
3Indicators of hydrophytic vegetation and
wetland hydrology must be present,
unless disturbed or problematic.
Thick Dark Surface (A12)Depleted Dark Surface (F7)
Indicators for Problematic Hydric Soils3:
Sandy Gleyed Matrix (S4)
Sandy Redox (S5)
Loamy Mucky Mineral (F1)
Depleted Matrix (F3)
Redox Dark Surface (F6)
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.)
Histosol (A1)
Histic Epipedon (A2)
Black Histic (A3)
Hydrogen Sulfide (A4)
Stratified Layers (A5)(LRR F)
1 cm Muck (A9) (LRR F, G, H)
Depleted Below Dark Surface (A11)
Stripped Matrix (S6)
HYDROLOGY
Clayey loam
2Location: PL=Pore Lining, M=Matrix.1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains.
Remarks:
none
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.)
Depth
(inches)Color (moist)
0-16 Loamy/Clayey
Redox Features
Color (moist)
Matrix
Texture
(includes capillary fringe)
SOIL UDP-06
Restrictive Layer (if observed):
Field Observations:
10YR 4/3
Remarks
Geomorphic Position (D2)
Inundation Visible on Aerial Imagery (B7)Other (Explain in Remarks)FAC-Neutral Test (D5)
Aquatic Invertebrates (B13)
Hydrogen Sulfide Odor (C1)
Dry-Season Water Table (C2)
High Water Table (A2)
Saturation (A3)
Sparsely Vegetated Concave Surface (B8)
Crayfish Burrows (C8)
Drainage Patterns (B10)
Oxidized Rhizospheres on Living Roots (C3)
(where tilled)Sediment Deposits (B2)
Water Marks (B1)
Algal Mat or Crust (B4)
Iron Deposits (B5)
Water-Stained Leaves (B9)
Drift Deposits (B3)
Oxidized Rhizospheres on Living Roots (C3)
(where not tilled)
No wetland hydrology present.
Remarks:
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
No
No
No
Depth (inches):
Depth (inches):
Depth (inches):
Presence of Reduced Iron (C4)
Thin Muck Surface (C7)
Saturation Visible on Aerial Imagery (C9)
Frost-Heave Hummocks (D7)(LRR F)
ENG FORM 6116-5, FEB 2024 Great Plains – Version 2.0
Upland Data Point 06
Proposed Retirement Community |Fort Collins, Colorado
Photos Taken: October 4, 2024 |Terracon Project No. 20247058
Facilities | Environmental | Geotechnical | Materials
UDP-06 facing north UDP-06 facing east
UDP-06 facing south UDP-06 facing west
UDP-06 soil profile