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tcalc = (10.964 — (6.354))/(2.555/32) = 5.245/0.452 = 10.207 <br />Since critical t = 0.853 (one -tailed, alpha = 0.2, 32-1 df) is exceeded by tcalc (10.207), the <br />hypothesis of no difference is rejected and reclamation success for 2014 BRB-1 Phase III <br />production under is demonstrated. <br />Successful revegetation for the parameter of production was demonstrated in both 2012 and <br />2014. <br />WOODY PLANT' DEATSITV <br />The criterion for determining woody plant density success at the Yoast mine site is based on <br />standards categorized as primary and secondary. The primary standards are as follows: (PI) <br />background average woody density will be > 200 stems per acre in upland areas and (P2) at least <br />10% of the bond release block will be > 1000 stems per acre of concentrated woody density <br />outside of fenced upland sites. Success is evaluated using 90% of the standard or 180 stems per <br />acre (background) and 900 stems per acre (concentrated), respectively. Additionally, there are <br />three secondary standards of which at least two must be satisfied if applicable. Upland fenced <br />shrub areas (SI) must have at least 945 stems per acre, riparian fenced and non -fenced areas (S2) <br />must have 945 stems per acre with 150 of the stems being tall shrub or trees and aspen fenced <br />areas (S3) must have 945 stems per acre with 150 of the stems as aspen. In the case of the Yoast <br />BRB-1 release area, there is one fenced upland area that includes shrubs and trees but is neither a <br />designated aspen planting area nor a riparian area (fenced or unfenced). Thus the only secondary <br />standard that applies to the BRB-1 area is S1. In the evaluation of BRB-1 woody plant <br />Concentration Area density data below, mandatory standards P1 and P2 and the Upland Fenced <br />Shrub area secondary standard (S 1) mentioned above will be addressed. <br />SL -6 - 17 <br />