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• For all future measurements of the new Juniper Woodland Reference Area to be <br />used for success determination the following adjustments shall occur: <br />The mean ground cover shall be "adjusted" upward by the multiplication <br />factor of 1.426 and mean herbaceous production shall be "adjusted" <br />downward by the multiplication factor of 0.971. <br />• The annual/biennial cover component in excess of 37% relative cover <br />and annual/biennial herbaceous production component in excess of 55% <br />relative production shall be deleted from the reclaimed area data, prior to <br />success demonstration comparison for cover and production. <br />For all future measurements of the old Mountain Shrub Reference Area to be <br />used for success determination, mean ground cover shall be "adjusted" <br />downward by the multiplication factor of 0.910 and mean herbaceous production <br />shall be "adjusted" downward by the multiplication factor of 0.418. <br />In effect, this procedure will facilitate a "comparison" or "control" area style evaluation <br />whereby the original baseline data are utilized to adjust the reference area mean (given the <br />aforementioned ratios), and differences over time due to climatic influences will still be accounted <br />for by changes in reference area data. This procedure is recommended because the next best <br />alternative (standards) is still not available for use. To help avoid confusion, the following <br />• example is provided to demonstrate the determination of a single, acreage-weighted "baseline- <br />adjusted" value that revegetation area ground cover might have to achieve. <br />Example future success criterion for a ground cover comparison <br /> Pre-Mine Community <br />Parameter/Adj. Factor/Etc. <br /> Juniper Woodland Mountain Shrub <br />Pre-Mine Ref. Area /Baseline Ratio 1.426 0.910 <br />Post-Mine Ref. Area Ground Cover gp 60 <br />(Hypothetical) <br />Baseline Ratio Adjusted Ref. Area Total 42.78 54.60 <br />Ground Cover <br />Weighting Factor based on Study Area 0.250 0.750 <br />Acreage (Hypotheical) <br /> <br />Acreage Wtd. Ground Cover (%) by Type 10.70 40.95 <br />otal Target Weighted Ground Cover (%) Fo 51~65p~0 <br />ear )0000 (or Reveg Area Success Criterion) <br />NOTE: THE DBMS DOES NOT ACCEPT THE MOUNTAIN SHRUB ADJUSTMENTS. SEE <br />• DRMS LETTER DATED JANUARY 29, 2007. <br />~~~~ ~~~c~~v~~, INC. 20 Exhibit 5 -Vegetation Resources <br />Rev 04107 JES <br />T,2- y 6 <br />APP~eav~l> <br />~~~/b e <br />