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C. Methods to measure vegetation cover, herbaceous production, species diversity, and woody plant density are discussed in Section 3.4.9 of the application. These techniques include point intercept for cover sampling, quadrat clipping for herbaceous production estimates, and quadrat stem counts for woody plant density estimates. The Division proposes to approve of these techniques (4.15.7(1)). The sampling techniques and statistical methods to be used in demonstrations of revegetation success aze in conformance with Rule 4.15.11. D. Comparisons between reclaimed and undisturbed areas, in order to demonstrate that success criteria of 4.15.8, 4.15.9, or 4.15.10 have been met, will be based on the following: Reference areas have been established for each designated vegetation type, and were originally proposed to be used for comparisons of both vegetation cover and herbaceous production for the affected types Quniper woodland, shadscale shrubland, and greasewood shrubland). The reference areas have been approved for vegetation cover success comparisons. However, because sample adequacy requirements were not met for production within either the reference azeas or affected areas for these types, use of reference areas for production comparisons was not approved. Because the combined affected area herbaceous production data for McClave Canyon and the adjacent Munger Canyon permit areas did meet sample adequacy, within each vegetation type, it was determined that the combined affected area production data would be used as the success standard for each of the affected vegetation types, pursuant to Rule 4.15.7(2)(d)(vi) [April 16, 1985 Findings Document]. The herbaceous production success standards based on combining of the data within vegetation types for both mines are as follows: Greasewood Shrubland sample mean: 766 Ib/ac. Standard (90% of mean): 690 Ib/ac. shadscale Shrubland sample mean: 661 Ib/ac. Standard (90% of mean): 595 Ib/ac. Juniper Woodland sample mean: 389 Ib/ac. Standard (90% of mean): 350 Ib/ac. The diversity standard is specified on page 3-17, and requires that a minimum of three perennial species shall each provide a minimum of 3% relative cover. At least two of these species shall be cool season perennial grasses. No individual species shall represent more than 60% relative cover. This standard was amended by RN-04, from the previous standard which mentioned perennial forbs and warm season grasses as counting toward the diversity standard, but identified no minimum relative cover level for any particular life form. Neither warm season gasses nor perennial forbs were significant components of the affected vegetation types. The relatively small number of species required to meet the diversity standard reflects the fact that the total disturbance is only 9.2 acres, and the largest disturbance in any one vegetation type is less than 5 acres. The 60% upper limit is also reflective of the small disturbance area, and the fact that relative cover of the dominant species in the three affected vegetation types ranged from 40% to 58%. The woody plant density standards previously established by the Division in consultation with the Division of Wildlife are: 23