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<br />Stipulation No. 18 required that a species diversity standard be established. This <br />standard is a minimum of six (6) principle species, of which three (3) will be cool <br />season grasses, two (2) will be shrubs, and one will be a forb. Coo] season grasses <br />will contribute 7-35 percent of the total diversity, shrubs will account for 10-27 <br />percent of total diversity, half-shrubs will comprise 1-IS percent of total diversity, and <br />forbs will contribute 1-5 percent to the total diversity. Of the three principle cool <br />season grass species, no single species will comprise greater than 40 percent in <br />relative importance. Of the two shrub species, neither will comprise greater than 80 <br />percent in relative importance. Sampling of diversity will be obtained during the <br />liability period and will meet sample adequacy requirements. <br />A woody plant density standard was established to satisfy the requirements of <br />Stipulation No. 19. This standard is to reestablish woody plant density so that the <br />reclaimed density is a minimum of 90 percent successfully in achieving 3,770 stems <br />per acre with 80 percent confidence. On October 10, 1990 a technical revision was <br />approved that reduced this density 2000 stems/acre. A stipulation attached to this <br />revision required the submittal of a letter from the land owner consenting to this <br />reduction. This stipulation was satisfied and terminated. An adequate sample will <br />be taken to evaluate properly the woody plant density. <br />Production data for the alkali sagebrush community within the affected area and <br />reference area was submitted to satisfy the requirements of Stipulation 17. Previous <br />data available in the permit document defined production and cover for the big <br />sagebrush community. Reference area cover and production-weighted means will be <br />compared to the revegetated means. Revegetation success criteria standards will be <br />based on comparison to reference areas. <br />Baseline vegetation information for the Canadian Strip Mine is presented in Section <br />2.04.10 of Volume I and Appendix F of volume II of the permit document. <br />Information pertaining to the revegetation plan is presented in Section 2.05.4 of <br />Volume I and Exhibit I of Volume III. The final approved seed mix is presented as <br />Exhibit 3 in the permit application. <br />XII. Post-mining Land Use <br />The primary land use at the Canadian Strip Mine site was wildlife habitat and <br />rangeland for cattle grazing prior to mining operations. The reclamation plan <br />proposed by Slurco, Inc. is to return the land to equal or better utility for these same <br />uses. Post-mining land use will be wildlife habitat and rangeland. Pursuant to Rule <br />2.07.6(2)(1), the Division finds that the proposed post-mining land use of the permit <br />area meets the requirements of Rule 4.16. <br />Canadian Strip Mine, C-81-026 24 July 31, 1992 <br />