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The 2 West Portal -East area currently passes all four diversity standards. The present relative <br />cover of perennial warm-season grasses, perennial forbs or sub-shrubs and perennial cool-season <br />grasses is sufficient to pass the required minimum values, and there are no planted species with greater <br />than 70% relative cover. <br />3.9 2 West Portal -West <br />Ground cover of 2 West Portal -West area consisted of 33.8% live vegetation, 10.6% rock, 6.7% <br />litter, and bare soil exposure of 48.9%. Perennial cover across the unit averaged 22.7% (up from 9.6% <br />in 2004) with annual and biennial cover averaging 11.1% (down from 16.2% in 2004). Dominant taxa <br />were cheatgrass, Russian wildrye, founving saltbush, shadscale, and greasewood with 9.2%, 7.9%, <br />7.7%, 3.1°k, and 1.8% average cover, respectively. This unit faits the revegetation success criterion of <br />90% of the Shadscale Reference Area value when both annual and perennial cover values are combined. <br />However, it passes when only perennial cover is compared. <br />The 2 West Portal -West area currently passes all four diversity standards. The present relative <br />cover of perennial warm-season grasses, perennial forbs or sub-shrubs, and perennial cool-season <br />grasses is sufficient to pass the required minimum values, and there are no planted species with greater <br />than 70% relative cover. <br />3.10 Roadside Refuse Borrow Area <br />Ground cover of the Roadside Refuse Borrow Area consisted of 33.6% live vegetation, 2.0% rock, <br />18.0% litter, and bare soil exposure of 46,4%. Perennial cover across the unit averaged 7.7% with <br />annual and biennial cover averaging 25.9%. Dominant taxa were cheatgrass, forage kochia, and <br />shadscale with 24.5%, 2.1%, and 1.7% average cover, respectively. This unit fails the revegetation <br />success criterion of 90% of the Shadscale Reference Area value when both annual and perennial cover <br />values are combined. However, it passes when only perennial cover is compared. <br />The Roadside Refuse Borrow Area currently passes three of the four diversity standards. There is <br />sufficient cover of perennial forbs or sub-shrubs and perennial cool-season grasses to pass the required <br />minimum values, and there are no planted species with greater than 70% relative cover. However, the <br />present relative cover of perennial warm-season grasses (0.60%) is insufficient to pass the required <br />minimum value (2.0%). <br />CEDAR CREEK ASSOCIATES, INC. Page 17 SNOWCAP COAL COMPANY <br />Revegetation Evaluation - 2006 <br />