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West Elk Mine Reclaimed Areas Total Herbaceous Production (2014/2015) <br />Final Total Vegetation Cover Success Criterion: 180.38 g/m2 <br />2014 Sampling 2015 Sampling <br />Xbar <br />226.80 <br />239.30 <br />S <br />80.90 <br />94.40 <br />N <br />38 <br />28 <br />Nmin <br />22 <br />27 <br />Based on the results of the 2014 and 2015 quantitative sampling, the reclaimed areas <br />exceeded the final revegetation total herbaceous production success criterion of 180.38 <br />g/m2, with sample means greater than 90% of the total herbaceous production final <br />success criterion. <br />Species Composition <br />The final species composition standard requires that there be at least three perennial <br />species of which two are cool season perennial grasses and one is a cool season perennial <br />forb. No one component of the above three species should comprise greater than 40% <br />relative cover nor less than 3% relative cover, during a given year's quantitative <br />sampling. Vegetation species which may be used in the calculation of species <br />composition may be any plant species not defined as a noxious or prohibited plant <br />species, and may be native or introduced. <br />West Elk Mine Reclaimed Areas Species Composition (2014/2015) <br />The reclaimed areas eligible for Phase III bond release sampled in 2014 and 2015 <br />exceeded the requirements for species composition, thereby meeting the final <br />revegetation success criterion and supporting the post -mining land use. <br />From the summary information above, the reclaimed areas sampled exceeded the final <br />revegetation success criteria values for total vegetation cover, total herbaceous <br />production, and species composition in 2014 and 2015, thereby demonstrating that the <br />permittee has established a diverse, effective, and permanent vegetative cover of the same <br />seasonal variety as the original vegetation. <br />Success <br />Standard <br />2014 Sampling <br />2015 Sampling <br />Total Perennial Species* <br />3 <br />7 <br />6 <br />(>3% rel. cover) <br />Cool Season Grasses* <br />2 <br />4 <br />4 <br />Cool Season Forbs* <br />1 <br />3 <br />2 <br />Relative Importance <br />All Species <br />P <br />All Species <br />All Species <br />(3%<g<40%) <br />* Numbers reflect only those species meeting the relative importance percentage limitation <br />The reclaimed areas eligible for Phase III bond release sampled in 2014 and 2015 <br />exceeded the requirements for species composition, thereby meeting the final <br />revegetation success criterion and supporting the post -mining land use. <br />From the summary information above, the reclaimed areas sampled exceeded the final <br />revegetation success criteria values for total vegetation cover, total herbaceous <br />production, and species composition in 2014 and 2015, thereby demonstrating that the <br />permittee has established a diverse, effective, and permanent vegetative cover of the same <br />seasonal variety as the original vegetation. <br />