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With regard to Alternative Test B, the Total Species Density Test, the following is calculated for the 2016 <br /> BRB-2a (Table G-2): <br /> Mean Species Density (Area-weighted) in the 4 reference areas = 26.38 species per 100 m2 <br /> Probability-adjusted density standard: <br /> Mean Reference Area Species Density — 1.15s = 26.38— 1.15 (5.04) = 20.59 <br /> Mean Total Species Density in the 2016 BRB-2a = 22.85 <br /> Since the reclaimed area value was greater than the standard, <br /> Alternative Test B is Passed for BRB-2a data. <br /> Regarding Alternative Test C, the similarity index between the lifeform species density values for the <br /> prescribed lifeforms for the 2016 BRB-2a and the Mean Species density (Area-weighted) in the four <br /> reference areas is 66% (Table G-3), exceeding 90% of the standard (0.9 x 70% = 63%). <br /> Hence Alternative Test C is Passed for BRB-2a data. <br /> Regarding Alternative Test D, the total number of native species encountered in the first seventeen 100 <br /> m2. (2 m x 50 m) samples of the 2016 BRB-2a that constituted an adequate cover sample based on <br /> allowable all-hit herbaceous cover was 54 (Table G-4), substantially greater than the weighted reference <br /> area average native species density (23.3 species per 100 m2). Weighted reference area average native <br /> species density was also exceeded by the total number of native species encountered in the first fifteen <br /> 100 m2 samples of the 2016 BRB-2a (46 species per 100 m2)that constituted an adequate cover sample <br /> based on species diversity. <br /> Hence Alternative Test D is Passed for BRB-2a 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-2a. This indicates that revegetation is progressing <br /> well and is likely to achieve success for species diversity during a future bond release evaluation. <br /> BRB-3 Diversity Tests <br /> 18 <br />