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j. <br />Bob Liddle -2- id ay 13, 1983 <br />3. The application does not contain a proposed species diversity success <br />standard. Based on the cover data contained within the application and <br />the revegetation plan, I suggest the following standard: <br />The reclaimed surface should include at least 3 cool season <br />perennial grasses and 1 perennial forb with relative cover equal to or <br />greater than 3%. The combined relative cover should not exceed 8U% and <br />no one species should comprise greater than 60',6. <br />4. No specific reve4ation monitoring plan is described in the <br />application. Measurements of woo y p an ensity and vegetation cover <br />the first and third growing seasons following reseeding, at intensities <br />equivalent to pre-mine sampliny would be sufficient to evaluate the <br />potential of achieving reveyetation success. <br />5. Since the past-mine land use is undeveloped land there is no need <br />for "a post-mining management olan for the reclaimed areas" as specified <br />by dr~L vLinuiaLinn nn. n. <br />6. I would recommend removal of rubber rabbitbrush from the seed rnix, <br />since it is an aggressive invader species which rapidly colonizes small <br />disturbances, such as at Somerset, via wind blown seed from adjacent <br />stands. There are several introduced species in the seed mix, but they <br />are included at low enough seeding rates as to allow for a primarily <br />native revegetated stand. The seed mix as presented, with the deletion <br />of rubber rabbitbrush, is acceptable. <br />/tlh <br />Doc. No. 2726 <br />