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r <br />6, indicates that the diversity of perennial, cool-season, grass species that contribute between 3 and 60 <br />percent of the relative cover (composition) for both the revegetated areas (six species in 2006 and four <br />in 2007 for both communities) exceeds the standard (four species) in both 2006 and 2007. The second <br />diversity standard requires at least 3% relative cover of perennial forbs. Perusal of the third section of <br />Tables 1 & 2, as ~nrell as Charts 7 & 8, indicates that both revegetated areas easily surpass the perennial <br />forb standard (3°io relative cover) in 2006 and 2007. The grassland revegetation area exhibited 15.7% <br />and 29.4% relative cover of perennial forbs in 2006 and 2007, respectively, while the riparian area <br />exhibited relative cover values of perennial forbs of 11.8% and 16.5% for 2006 and 2007, respectively. <br />The final diversity standard states that at least three shrub species must be present in each revegetated <br />unit. Review of the third section of Tables 1 & 2, as well as Charts 9 & 10, indicates that both <br />revegetated units greatly surpass this standard in 2006 and 2007. The grassland revegetation exhibited <br />17 and 20 woody species in 2006 and 2007, respectively, while the riparian revegetation area exhibited <br />13 woody specie~~ in both years. Therefore the three diversity standards have been met with absolute <br />confidence for botch revegetation communities in 2006 and 2007. <br />3.5 Woody Plant Density <br />Evaluation of the woody plant density variable in accordance with Rules 3.03 and 4.15 utilizing the <br />testing protocols detailed above results in a positive finding regarding the 2006 and 2007 data. In this <br />regard, review of the fourth section of Tables 1 & 2, as well as Charts 11 & 12, indicates that the average <br />woody plant density of both communities substantially exceeds 90% of the analogous standards (100 for <br />grassland & 1,00(1 for riparian) for 2006 and 2007. <br />Year Reveaetation Value (per/aae l Success Criterion Goer/aael Sample Adeauaty <br />2006 Grassland 258 90 (total count) <br />2007 Grassland 268 90 (total count) <br />2006 Riparian 8,175 900 Yes <br />2007 Riparian 8,733 900 Yes <br />Direct comparison of the woody plant densities indicates that in each case the revegetation values <br />are greater than the success criterion (90% of the standard) and statistically adequate samples were <br />obtained (since sampling of the grassland unit followed a total count procedure, no statistical testing is <br />necessary). Therefore this results in the conclusion that the wood plant density standards have been <br />met with absolute confidence in both revegetation units in both 2006 and 2007. <br />CEDAR CREEK ASSIJCIATES, Inc. <br />Page 11 <br />Blue Ribbon Mine -Phase III <br />Bond Release Evaluation - 2007 <br />