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- 11 - `-,.,,J ` tions. It was verified statistically that the tScClane and Hunger respective communities were not significantly different in terms of vegetative productiv- ity within the bounds of each vegetative community. Data from the McClane and Munger sites were combined (within communities and between sites), and it was determined that the combined data met confidence level requirements. Due to [he small area of disturbance at the ifcClane site, the CMLRD has deter- mined that premine productivity and premine cover data may be applied as rec- lamation success criteria. It was also determined that the productivity data for the reference areas for the McClave Canyon vegetative communities did not meet sample adequacy requirements and required stipulation (see preferred alternative section). The applicant has not demonstrated that adequate woody plant density sampling has taken place at the McClave Canyon site and required stipulation (see pre- ferred alternative section.) The applicant has proposed a .variance from baseline woody plant densities for the greasewood shrubland. and xhe::shaasrale shzubland, but:-:has: not provided yustification for the proposed stocking level, and is therefore stipulated _ ~z•:.: `" ' (see preferred alternative section). - .-- -_ -fie pdrmittee has measured- species diversity._in_terms, .of species richness and species equitability but has not proposed a means to evaluate revegetation success in terms of species diversity. :-±-s: ClII.RD is concerned with the. ability of Salt Creek Mining Company to reclaim ~:~:,.--: ~~ the area given the low annual precipitation and subsequently stipulated it for - the compliance. - It has determSnedLthat no threatened or endangered species of plants exist at the McClave Canyon site, based. an information Supplied by the 'applicant. - Fish and. Wildlife _. _. - -., -. Cl1LRD has consulted with Division of Wildlife personnel who are familiar with the area. Both agencies agree that there is little potential for adverse ef- fects of the mine on wildlife since nearly all of the anticipated surface dis- - turhance has occurred and a very limited area is affected. Backfilling and Grading Because the mine is an underground mine, only a limited area of surface dis- turbance will require backfilling and grading. All portals and the sediment pond will be backfilled. The coal seam will be completely covered with backfillcd mateYial. Drainage viii be restored to ap- proxi~ate pre-mining conditions. ~! If underground development waste is generated during mining i[ vill'be retaln- j!-~ ed in [he mine workings.