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6.0 RE<:OMMENDATIONS FOR BOND RELEASE STANDARDS • <br />They current permit for Bowie's operations identified three major communities for which reference <br />areas have been established, as appropriate. These are juniper woodland, mixed shrub, and dishtrbed <br />meadow. Because the loadout area is comprised of five "new" communities, a different set of bond <br />release criteria is necessary. <br />Because oT the multitude of land owners and management within the narrow valley encompassing <br />the vegetation study area, it is recommended that an "extended reterenc~ area" approach for eventual <br />revegetalion success evaluation be utilized, excepting where fixed techntcal standards would be used for <br />woody pl,3nt density and crop,yields. In this regard, the following table presents proposed success criteria <br />and technical standards to be utilized in an evaluation protocol that complies with Colorado's "Guideline <br />Regardirn3 Selected Coal Mine Bond Release Issues" (April 18, 1995) or future document(s) that may <br />supersede this guideline. Procedures"used to collect comparison data would be similar to those used for <br />this basePine evaluation (s.g., point-intercept along line-transacts for ground cover). At the time of this <br />writing, itoe approved comparison technique involves the 'Yeverse null hypothesis testing procedure" as <br />detailed in the April 18, 1995 guidelines. ~j <br />y~>/\ <br />Extended Reference,Lf rea Comparisons and Technical Standards <br />Revegetate:d <br />Community Grour)c~~ <br />Coveer Current Annual <br />Production Woody Plant <br />Density Diversity <br />Standard <br /> X <br />Pasture 90°h of <br />~~ 909'° of N/A ~ N/A <br /> Extended Extended <br /> Reference Area Reference Area <br />Irrigated Hayfield N/A 90°~ of N/A N/A <br /> 3400 air dry J/s/ac <br />Orchard N/A N/A 90% of N/A <br /> 133 iive fruit trees/ac <br />Derelict 90°/° of N/A 90°,6 of 3 P\Grasses & t P. Fort: <br /> Extended - 90 live trees/ac or Shrub Between 2 & 40°i° <br /> Reference Area Relative Cover <br />Riparian/Wetland N/A N/A N/A N/A <br />Residential /Ind. Fec. N/A N/A N/A N/A <br />CJ <br />~®~ ~tFCS pCC¢~'do4'~A, tNC. Page 29 Exhibit 5 -Bowie Baseline Vegetation Suniey <br />