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• <br />- y <br />n <br />u <br />STATE OF COLORADO RIGHAgD D. LAMM, Governor 999 <br />DEPARTMENT OF NATURAL RESOURCES <br />D. Monte Pascoe, Executive Director <br />NIINED LAND RECLAMATION <br />423 Centennial Building, 1313 Sherman Street <br />Denver, Colorado 60203 Tel. (303) 666-3567 <br />David C. Shelton <br />Director <br />September 24, 1981 <br />T0: Brian Munson <br />FROM: M.S. SavageS, /~.V /~~~...~ <br />RE: H-G Statistical Analysis of Vegetation <br />September 17, 1981 Submittal <br />Brian , <br />I have finished analyzing the additional vegetation data submitted by H-G <br />in response to our discussions with H-G and David Duba of Morrison-Knudsen. <br />The resampling and additional sampling which was performed satisfies the <br />vegetative concerns relative to sample adequacy and comparability of baseline <br />vegetative communities and reference areas. At this point, H-G has adequately <br />represented the vegetative communities at the mine site, and selected and <br />adequately sampled reference areas for the aspen, sagebrush, oak, and choke- <br />cherry communities. <br />H-G wishes a variance from reestablishment of pre-mine woody plant densities. <br />They have supplied adequate baseline information to represent the pre-mine <br />communities. Rt this point, it remains necessary to work out acceptable <br />reclamation success criteria for woody plant densities for the Hayden Gulch <br />site, <br />/mt <br />