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... . Several concerns arose concerning the seed mixes the applicant proposed for reclamation at the site. This issue was resolved with the applicant agreeing to submit seed mixes on an annual basis for approval by the Division. The Division proposes to approve the use of some introduced species in the reclamation seed nriz. The applicant has submitted information which shows that the introduced species are desirable and necessary to achieve the approved post-mining land use, and are not poisonous or noxious (Rule 4.15.2). The applicant has proposed that the Division approve a variance from the requirement to reestablish pre-mining shrub densities. The Division has reviewed the supporting information provided and has approved the proposed plan. The plan involves the transplanting of mature shrub clumps of a given size onto the reclaimed surface. Survival within clumps is being monitored by the applicant. As detailed in Trapper Mining, Inc. 's responses to the Division's preliminary adequacy review (material received on July 27, 1987), numerical shrub density standards have been established as follows: °The shrub density standard for Trapper Mine on Range Site A and B will be a minimum of 400 live stems per acre. °Within the 1.6 acre mature shrub clumps the density shall be 3,164 live stems per clump. °There are no shrub density standards for Range Site C. °If the use of mature shrub clumps is discontinued the current shrub density standards will be reevaluated and new standards may be considered by the Division. The Division finds that his lower standard is appropriate for density in woody vegetation communities (Rule 4.15.8(7)). The above success measurement standards are acceptable to the division (Rule 4.15.7(1)). °The diversity of the.revegetated areas shall be considered acceptable if there are at least as many perennial herbaceous species on the revegetated area which contribute a two-year average of 5~ or more of the total relative cover, as there are ,fn the corresponding permanent reference areas.. Noxious or undesirable species will not be used. No species, however, can contribute more than 50~ relative cover unless future baseline data indicate this number should be higher udder some circumstances. Pursuant to Rule 2.07,6(2)(n), and on the basis of available information, the Division finds that the proposed operation will not affect the continued existence of any threatened or endangered plant specles. The operation is in compliance with the requirements of this section. -- -45- ATTACHMENT 2