2014-08-19_PERMIT FILE - C1980007

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 8/19/2014
• Doc Name: Modeled Geotechnical Characteristics Material
• Section_Exhibit Name: Exhibit 82 Tables
• Media Type: D
• Archive: No

Table 8 — Desktop Evaluation of Federally -Listed Plant Occurrence
Scientific Name
Common Name
Likelihood of
Onsite
Federal
State
Typical Habitat/Substrate/
Known Distribution in
Justification for Onsite Likelihood
Reference
Occurrence
Status
Ranking
Elevation
Colorado
Determination
Astragalus
Mancos milkvetch
Very Unlikely
E
S1
Rocky crevices in Point Lookout
Montezuma County (Most
Habitat and substrate may be appropriate
http://www.centerforplantconservation.org/collecti
humillimus
Cretaceous sandstone (Mesa
populations occur in New
(Mesa Verde series exists onsite), but no
on/CPC_ViewProfile.asp?CPCNum=414
Verde series). Elev. 5000-6000 ft.
Mexico)
known populations occur in or around
Gunnison County. Project site outside of
elevational range of species. Due to rarity,
it is unlikely that the species would occur in
the project site.
Astragalus
Skiff milkvetch
Unlikely
C
S1
Rocky, open sagebrush/juniper-
20 -square mile area southwest
Extremely rare. Outside of known range.
http://www.fws.gov/mountain-
microcymbus
sagebrush communities on
of Gunnison, CO
Only known occupied habitat is 45-55 miles
prairie/species/plants/skiffschmol Ism ilkvetch/
moderately steep to steep slopes.
from project site.
Elev. 2400-2600 ft.
Astragalus
Kremmling
Very Unlikely
E
S1
Shale and siltstone barrens in
Muddy and Troublesome Creek
Known populations are not in regional
http://www.centerforplantconservation.org/collecti
osterhoutii
milkvetch
sagebrush habitat in moderately-
drainage basins, Grand County
proximity to project site. Substrate and
on/CPC_ViewProfile.asp?CPCNum=461
sloped clayey soils. Elev. 7400-
habitat may be appropriate, but most of
7900 ft.
project site too low in elevation for species.
Species rarity likely precludes existence on
project site.
Astragalus
Sleeping Ute
No likelihood
C
S1
Mixed desert scrub on lower
Sleeping Ute Mountain in
Known populations are not in regional
http://www.cnhp.colostate.edu/download/projects/
tortipes
milkvetch
slopes of ridges and knolls in
Montezuma County
proximity to project site. No appropriate
rareplants/PDFABOFBGO.html
gravelly Mancos Shale soils.
habitat or substrate occurs onsite.
Elev. 5400-5700 ft.
Elevation of the project site is out of range
for the species.
Eriogonum
Clay -loving wild
Unlikely
E
S2
Mancos shale badlands and flats
Mancos Shale hills in Delta and
Known populations occur in adjacent
http://www.centerforplantconservation.org/collecti
pelinophilum
buckwheat
in saline mixed desert shrub
Montrose Counties
counties, but are restricted by habitat.
on/cpc_viewprofile.asp?CPCNum=1773
community. Elev. 5200-6400 ft.
Project site habitat and substrate is
generally unsuitable for the species.