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confidence level, using a one-sided test with 0.10 alpha error probability. <br />Diversity <br />Species diversity will be deemed adequate when the reclaimed lands consist of <br />a minimum of 2 cool season grasses, 2 warm season grasses and one forb. These <br />species shall compromise at least 5% and no more than 60% relative cover and <br />shall consist of perennial, non -noxious species. <br />Woody Plant Density <br />Woody plant density will be determined by conducting a total census within each <br />shrub clump. Success will be confirmed when the count of live shrubs, after all <br />clumps are counted, averages 65 live stems per clump. <br />To improve and enhance wildlife habitat on reclaimed lands, NECC proposes to <br />establish shrub clumps on the reclaimed lands. Over 30 years of coal mine <br />reclamation in Colorado has resulted in successful techniques concerning re- <br />establishing shrubs on reclaimed areas. NECC believes that it is prudent to use <br />these techniques, to not only establish wildlife habitat, but to ensure the greatest <br />chance of successful reclamation results. The shrub establishment plan shall <br />include the following components: <br />Shrub Clump Size <br />Each shrub clump will be 100 feet square or 10,000 square feet in area. <br />Shrub Clump Locations <br />Six(6) shrub clumps will be established on the reclaimed area. Two (2) <br />shrub clumps will be established on the RDA final surface. Referring to <br />Figure 6, one RDA clump will be positioned at N8,750, El 14,300 and one <br />clump at N9,250, E113,100. In the event the RDA is reclaimed prior to <br />constructing the RDA to its final design size, two clumps will be <br />established on the reclaimed surface, spaced at a sufficient distance from <br />the other and from the undisturbed areas so that the clumps are serving the <br />greater reclaimed area. Two (2) clumps will be established in the East <br />Portal facility area, with locations to be field -determined considering <br />permanent roads, the river, and the topography of the final reclaimed area. <br />One clump will be established at the location of the prep plant and pond 6. <br />In this clump, plains cottonwood will replace juniper and pinion pine due to <br />the riparian nature of this area. One clump will be established near the <br />DWDA #3 at the West Mine, the location to be selected based on the final <br />construction of DWDA#3 and permanent roads. <br />Orientation <br />Section 2.05 RN -6 10/17/2016 <br />