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were ripped in the fall of 1996 and broadcast seeded as an experimental treatment to control cheatgrdss <br />invasion. Another portion of this unit was redisturbed in 2000 for installation of a pipeline and then <br />reseeded in the fall of 2000. The South Fan Area is comprised of a little more than an acre of moderately <br />sloping revegetation that has a predominately western aspect This area (East unit and West Borrow <br />unit) was graded, seeded and mulched in the fall of 2000. The 2 West Portals Area is comprised of four <br />small units that total less than an acre. These are areas of gentle to moderately sloping revegetation <br />that have a predominately western asped and were graded, seeded and mukhed in the fall of 2000 (with <br />one of the four areas completed in the Fall of 2001.) <br />According to permit documents, the diversity success criteria that were initially established for this <br />mine were as follows: <br />• One perennial cool season grass speaes wdh >3% relative cover. <br />• Total perennial wane season grass speces equal th or > 3% relative Dover. <br />• Total perennial fort species equal to or > 3% relative cover. <br />• No reclaimed area shall have a single species that represents > 40% relative cover. <br />Snowcap evaluated the species diversity sucoess standard during 2001. Per Cedar Creek's <br />recommendations from that evaluation and consultations with the Cobrado Division of Minerals and <br />Geology (CDMG), new species diversity success standards were adopted. They are as follows: <br />• Total perennial cool season grass species relative cover ?0.5%. <br />• Total perennial warm season grass species relative cover >_2.0%. <br />• Total perennial forb and suffrutescent (sub-shrub) species relative cover >_0.5%. <br />• No reclaimed area shall have a single species that represents >70% relative cover. <br />The original intent of this final diversity standard was to predude a planted monoculture where one <br />speces (e.g., crested wheatgrass) is overwhelmingly dominant Hence, it is recommended that this <br />standard be modified to read "No reclaimed area shall have a single Ian species that represents <br />>70"/o relative cover". This clarification is required since the ubiquitous and invasive annual grass, <br />cheabgrass (Anisantha tectorum), has relative cover values approaching or surpassing 70% in years <br />favorable to growth in the both the North Dedine Area and Greasewood Reference Area. <br />Success standards for ground cover and production are the normal 90% of approved reference area <br />values. The standard for woody plant density is a value of 800 shrubs per acre. <br />SNOWCAP COAL COMPANY Page 2 Revegetation Evaluatbn 2004 <br />