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2005 Edna Mine Vegetation Sampling Report <br />1. Overview <br />The information provided this report follows Colorado Department of Mining and Geology <br />(DMG) requirements to verify that vegetation at The Pittsburg and Midway Coal Mining <br />Company's Edna Mine meets the standards established in the mine reclamation plan. <br />The information provided in this report constitutes Year One of the two years required <br />verification information. <br />The Edna Mine is located approximately four miles north of Oak Creek, Colorado. <br />1.1. Sampling Methodology <br />Vegetation sampling was conducted in accordance with the Edna Mine Vegetation Final <br />Bond Release Monitoring Plan, dated April 8, 2005, approved by the Colorado DMG. A <br />copy of this plan is available on file at the Colorado DMG. Vegetation sampling was <br />conducted at the Edna Mine from August 29 through September 13, 2005. The survey <br />was conducted by Wayne Erickson and Richard Bonine, Jr. of Habitat Management, Inc. <br />1.2. Performance Standards and <br />Statistical analysis of all data collected was conducted as dt#ribed in thk_ olorado <br />DMG's Guideline Regarding Selected Coal Mine Bond Rel a Issues, April'48, 1995 <br />,os <br />("Bond Release Guideline"). When the reclaimed area p eter sir ple mean is equal <br />to or greater than 90% of the reference area sample mean ( ,w+s g ted mean), or 90% <br />of the approved technical standard, then reclaimed vegetation i considered successful <br />for that parameter. In order to make a direct co prison, the spa le size(s) must meet <br />sample adequacy requirements. <br />?? - <br />Table 1-1 below presents the Edna in Bond?d claimed Units & Vegetation <br />Performance Standards of the Bond Rel?seJ its (Bid s). <br />n__I..: .. .? ?..:? 7ie..e+ \ L DnrFnm,nnr. Cfanrlarrlc <br /> Ve etation Parameter <br />Reclaimed Bond Bonded Acres ' Shrub <br />Release Unit (BRU) (app xirnate \ over Production Diversity Density <br /> <br />e BRU: <br />West Rid \ <br />/ Min 5 Species <br />between 3 & <br />g <br />Topsoiled <br />` 22 <br /> <br />Area Comparison <br />efere ce <br /> <br />40% Rel. N.A. <br /> \ Im rtance <br /> 90% grass <br />West Ridge BRU: 4 _ 47% N.A. 5%forbs N.A. <br />No-Topsoil 5%tree/shrub <br /> Min 5 Species Min 1000 <br />Moffat BRU: Topsoiled 215 Reference Area Comparison between 3 & <br />40% Rel. Stems per <br /> Importance acre <br /> 90% grass <br />Moffat BRU: 224 47% N.A. 5% forbs N.A. <br />No-Topsoil 5%tree/shrub <br />Diversity Standard for No-Topsoil units is voluntary <br />Habitat Management, Inc. 1