2014-12-19_REVISION - C1980005 (2)

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50.0% cover(((21.0 * 0.83) + (44.4 * 0.17)) *2). Ninety percent of this value equals 44.96% cover. The reclaimed BRB -5 exceeded the cover success value for 2011. Allowable vegetative cover measured in the BRB -5 in 2012 was 36.4 %. The weighted and factored vegetative cover value for the 2012 Sagebrush and Mountain Brush reference areas was calculated as 24.1% cover (((8.7 * 0.83) + (28.3 * 0.17) *2)). Ninety percent of this value equals 21.7% cover. The reclaimed BRB -5 exceeded the cover success value for 2012. Productivity Sample adequacy was achieved for herbaceous productivity for the 2011 sampling of both the Sagebrush and Mountain Brush reference areas. Sample adequacy was not achieved for BRB -5 in 2011 for herbaceous productivity. However, SCC collected a minimum of 30 production quadrats, allowing for application of Rule 4.15.11(2)(c). Sample adequacy was achieved for herbaceous productivity for the 2012 sampling of the Mountain Brush reference area, but not the Sagebrush reference area. Sample adequacy was not achieved for BRB -5 in 2012 for herbaceous productivity. Within the sample areas that did not achieve sample adequacy, SCC collected a minimum of 30 sample quadrats, allowing for application of Rule 4.15.11(2)(c). Allowable herbaceous production measured in the BRB -5 in 2011 was 2193.0 lbs /acre. The weighted herbaceous production value for the 2011 Sagebrush and Mountain Brush reference areas was calculated as 911.83 lbs /acre ((835.1 * 0.83) + (1286.5 * 0.17)). Ninety percent of this value equals 820.65 lbs /acre. The reclaimed BRB -5 exceeded the herbaceous production value for 2011. Since sample adequacy for herbaceous productivity was not achieved in 2011, SCC provided an acceptable two- sample t -test of the reverse null hypothesis with Sattherthwaite's adjustment to demonstrate herbaceous production success. Allowable herbaceous production measured in the BRB -5 in 2012 was 976.1 lbs /acre. The weighted herbaceous production value for the 2012 Sagebrush and Mountain Brush reference areas was calculated as 255.69 lbs /acre ((214.5 * 0.83) + (456.8 * 0.17)). Ninety percent of this value equals 230.1 lbs /acre. The reclaimed BRB -5 exceeded the herbaceous production value for 2012. Since sample adequacy for herbaceous productivity was not achieved in 2012, SCC provided an acceptable two- sample t -test of the reverse null hypothesis with Sattherthwaite's adjustment to demonstrate herbaceous production success. Species Diversity SCC utilizes four different criteria to determine species diversity success. The first criterion A, is mandatory, and requires that no single plant species may exceed 60% relative cover. Two of the remaining three criteria, B, C, or D, must be met to achieve diversity success. For 2011 vegetation data, BRB -5 was successful for tests A, C, and D. The Division finds the 2011 data successful for species diversity. The 2012 vegetation data for BRB -5 was successful for tests A, C, and D. The Division finds the 2012 data successful for species diversity.