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• Since critical t = 0.854 (one-tailed, alpha = 0.2, 29 df) and t,, is greater than this critical value, the <br />"reverse null hypothesis" is rejected and reclamation success for Phase II is demonstrated. <br />SPECIES DIVERSITY <br />The species diversity determinations are based on the approved diversity evaluation procedures <br />contained in Exhibit 2.05.4-E1 of the CDRMS Sage Creek Mine permit. See Appendix 5 for <br />further details in calculation of the results discussed below. <br />With regard to Test A, a determination of PASS was made because the species with the greatest <br />relative cover (Thinopyrum intermedium) had 29.98 percent relative cover (far less than the 60 <br />percent limit). <br />With regard to Test B, <br />Probability-adjusted Reference Area Species Density = 25.34 <br />Phase II Bond Release Block Species Density = 23.37 +/- 1.12 <br />Since the bond release block number does not exceed the standard, a determination of FAIL is <br />• made. <br />With regard to Test C, the similarity of the species density by life form of the Phase II bond <br />release block to that of the weighted reference area mean was 0.86, exceeding the standard of <br />0.63 and indicating a PASS for this test. <br />With regard to Test D, the weighted average species density of native species per 100 sq.m. is <br />28.7. The cumulative number of native species in the nine 100 sq.m. samples of the Phase II <br />bond release block (that constitute a minimally adequate sample) is 35, exceeding 28.7 and <br />indicating a PASS on this test. Within the 30 samples taken in total in the bond release block, the <br />total number of native species encountered was 56. <br />Hence three out of the four tests of species diversity were passed, and thus as per provisions of <br />the permit, an overall PASS of species diversity requirements is indicated. <br />0 14