2018-06-05_PERMIT FILE - C1981019A ‎(7)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/5/2018
• Doc Name: Volume 1 Rule 4
• Section_Exhibit Name: 4.02 Throuugh 4.30
• Media Type: D
• Archive: Yes

RULE 4 PERFORMANCE STANDARDS
The vegetative species with their contribution to diversity are as follows:
% Contribution to Diversi
22.6%
10.8%
6.7%
3.3%
43.4%
Although Gallium and Lupinus caudatus rank reasonably well in the diversity (composition) scale, they
were not included in the diversity goals for reclamation. Gallium is an annual, while Lupinus caudatus is
considered toxic to livestock and is most likely a product of overgrazing. Colowyo is interested in
reclaiming with vegetation species with equal or superior utility for the postmining land use when
compared with the utility of the naturally occurring premine vegetation. Neither Gallium nor Lupinus
provides any utility towards supporting the premining land use.
Three of the species are perennial cool season grasses and one specie is a perennial forb. All of the
species are found throughout the premine area on all soil types and moisture regimes. The grass species
all provide the qualities for excellent erosion control and livestock use. All four species of vegetation
exhibit high utility towards the premine land use.
It is important to note that the species exhibiting the greatest contribution to the premine vegetative
diversity is Kentucky Bluegrass, Poa pratensis, which is not considered a native. It exhibits nearly 23%
of the composition, over twice that of the next most dominant species, Western Wheatgrass, Agropyron
smithii, at nearly 11 %.
Species diversity for the postmine vegetative community will be determined in the same manner as the
premine inventory. Cover data will be collected using a point frame placed in an unbiased manner.
Overall, postmine data collection methods will be similar to premine data collection methods. Relative
cover values (composition) will be determined for each species in the sampled portion of the reclaimed
area.
A similar analysis of Hamer's January, 1985 Danforth Project data for the baseline evaluation of the
South Taylor Area (PR -02) yields a similar level of herbaceous diversity: an average of 3 perennial
grasses and 1 perennial forb for the three sampled communities with relative cover values between 3%
and 50%. These values are readily observable on the summary table below that lists those taxa that
exceed 3% relative cover from each of the study's three vegetation communities.
Rule 4 Performance Standards 4-65 Revision Date: 1/31/18
Revision No.: TR -119
Species
(1)
Poa pratenensis
(2)
Agropyron Smithii
(3)
Achillea lanulosa
(4)
Stipa viridula
% Contribution to Diversi
22.6%
10.8%
6.7%
3.3%
43.4%
Although Gallium and Lupinus caudatus rank reasonably well in the diversity (composition) scale, they
were not included in the diversity goals for reclamation. Gallium is an annual, while Lupinus caudatus is
considered toxic to livestock and is most likely a product of overgrazing. Colowyo is interested in
reclaiming with vegetation species with equal or superior utility for the postmining land use when
compared with the utility of the naturally occurring premine vegetation. Neither Gallium nor Lupinus
provides any utility towards supporting the premining land use.
Three of the species are perennial cool season grasses and one specie is a perennial forb. All of the
species are found throughout the premine area on all soil types and moisture regimes. The grass species
all provide the qualities for excellent erosion control and livestock use. All four species of vegetation
exhibit high utility towards the premine land use.
It is important to note that the species exhibiting the greatest contribution to the premine vegetative
diversity is Kentucky Bluegrass, Poa pratensis, which is not considered a native. It exhibits nearly 23%
of the composition, over twice that of the next most dominant species, Western Wheatgrass, Agropyron
smithii, at nearly 11 %.
Species diversity for the postmine vegetative community will be determined in the same manner as the
premine inventory. Cover data will be collected using a point frame placed in an unbiased manner.
Overall, postmine data collection methods will be similar to premine data collection methods. Relative
cover values (composition) will be determined for each species in the sampled portion of the reclaimed
area.
A similar analysis of Hamer's January, 1985 Danforth Project data for the baseline evaluation of the
South Taylor Area (PR -02) yields a similar level of herbaceous diversity: an average of 3 perennial
grasses and 1 perennial forb for the three sampled communities with relative cover values between 3%
and 50%. These values are readily observable on the summary table below that lists those taxa that
exceed 3% relative cover from each of the study's three vegetation communities.
Rule 4 Performance Standards 4-65 Revision Date: 1/31/18
Revision No.: TR -119