2015-10-06_PERMIT FILE - C1981019A ‎(3)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 10/6/2015
• Doc Name: Performance Standards
• Section_Exhibit Name: Volume 15 Rule 4
• Media Type: D
• Archive: Yes

RULE 4 PERFORMANCE STANDARDS
CDRMS regulations have been revised to allow for the use of comparisons of species composition based
on cover between the reclaimed area and she undisturbed vegetation.
This method of analyzing diversity w,;s applied to the premine herbaceous vegetation cover data
originally sampled and summarized in Table 2.04.10-35 (Collom — Vegetation Cover — 2005 Diversity
Summary).
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.
The revegetation objective for diversity will be to establish a community on the reclaimed areas that
contain the following;
For areas exhibiting the characteristics of the grassland subcomponent of the Rangeland/Fish and Wildlife
Habitat Land Use:
a) At least three native` cool season perennial grasses with between 3% and 50% relative cover
(composition), and
b) At least one perennial forb or shrub with between 2% and 50% relative cover (composition), or
c) A total of all forbs or all shrubs combined with between 4% and 50% relative cover
(composition), or
d) If five or more native* cool season perennial grass taxa contribute between 3% and 50%
composition, the requirement for perennial forbs and shrubs shall be limited to 1% or more
relative cover combined.
For areas exhibiting the characteristics of the sagebrush steppe subcomponent of the Rangeland/Fish and
Wildlife Habitat Land Use.
At least four native* perennial species, each more than 3% composition, minimum of two of which are
grasses and a minimum of one which is a forb, with the following caveat;
If no single forb species exceeds 3% composition, the forb requirement can be met if-
a)
£a) at least two native* perennial forbs combined comprise at least 2% composition, or;
b) at least four native* perennial fortis combined comprise at least 1% composition.
The dominant species will contribute to the appropriate structure and stability of the postmining
vegetative community to insure that the postmining land use as addressed in Section 4.16, Post -mining
Land Use, will be sustained.
' The limitation to "native" status will not apply tc irtrodo;ced (and CDRMS approved) taxa specifically planted 'or an approved
use (such as Or,,hard grass or Cicer milkvetch).
Collom — Rule 4, Page 43 Revision Date: 9/28/11
Revision No.: PR -03