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Total Herbaceous Production (2020) <br /> 2020 Extended 2020 Reclaimed Areas <br /> Reference Area <br /> Xbar 59.33 g/m2(1) 198.81 g/m2 <br /> S 15.45 g/m2 31.97 g/m2 <br /> Number of samples 15 15 <br /> Number of samples for sample adequacy 12 5 <br /> (1) Vegetation success criterion is the mean total herbaceous production of the extended <br /> reference area <br /> Based on the results of the 2020 quantitative vegetation sampling, the Elk Creek Mine <br /> reclaimed areas exceeded the final revegetation total herbaceous production success criterion <br /> of 59.33 g/m2, thereby exceeding the final revegetation success criterion for total herbaceous <br /> production and supporting the post-mining land use. <br /> Reclamation Success: Species Composition (2020) <br /> The Elk Creek Mine permit document specifies that to meet the requirements of the <br /> revegetation success criterion for species composition, species composition on any applicable <br /> reclaimed areas will be successful when there are three or more perennial or biennial plant <br /> species of which two are graminoids and one is a perennial or biennial forb or shrub. No one <br /> component of the above three species should comprise greater than 60%relative cover nor less <br /> than 2%relative cover, during a given year's quantitative sampling. <br /> The following reflects the number of individual species required by the success standard and <br /> the number of individual species encountered in quantitative sampling this year at the <br /> reclaimed areas. <br /> Oxbow Mining,LLC Elk Creek Mine Page 9 <br /> 2020 Phase III Bond Release(Year 1):Vegetation Report <br />