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With regard to Mandatory Test A, that no single species comprise greater than 60% relative cover in the <br />2016 BRB-3, Table G-1 shows that the most abundant single species Western wheatgrass (Pascopyrum <br />smithii) was 17.6% relative all -hit cover, well below the 60% threshold of concern. <br />Hence Mandatory Test A is Passed for BRB-3 data. <br />With regard to Alternative Test B, the Total Species Density Test, the following is calculated for the 2016 <br />BRB-3 (Table G-2): <br />Mean Species Density of the reference areas = 17.93 species per 100 m2 <br />Probability -adjusted density standard: <br />Mean Species Density of the reference areas — 1.15s = 17.93 — 1.15 (3.28) = 14.16 <br />Mean Total Species Density in the 2016 BRB-3 = 19.29 <br />Since the reclaimed area value was greater than the standard, <br />Alternative Test B is Passed for BRB-3 data. <br />Regarding Alternative Test C, the similarity index between the lifeform species density values for the <br />prescribed lifeforms for the 2016 BRB-3 and the Mean Species Density of the reference area is 78% <br />(Table G-3), exceeding 90% of the standard (0.9 x 70% = 63%). <br />Hence Alternative Test C is Passed for BRB-3 data. <br />Regarding Alternative Test D, the total number of native species encountered in the first eleven 100 m2. <br />(2 m x 50 m) samples of the 2016 BRB-3 that constituted an adequate cover sample based on allowable <br />all -hit herbaceous cover and species density was 36 (Table G-4), substantially greater than the reference <br />area average native species density (12.6 species per 100 m2). <br />Hence Alternative Test D is Passed for BRB-3 data. <br />In summary, Mandatory Test A was passed as were Alternative Tests B, C and D. Thus, the species <br />diversity test as a whole is passed for the 2016 BRB-3. This indicates that revegetation is progressing <br />well and is likely to achieve success for species diversity during a future bond release evaluation. <br />19 <br />