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.ARCO Coal Compan~ <br />Permits and C liante Group <br />555 Seventeenth Street <br />Mailing Address: Box 5300 <br />Denver, Colorado 80217 <br />Telephone 303 575 7500 <br />February 19, 1982 <br />• III IIIIIIIIIIIIIIII <br />~~ ~~~~ <br />FE'o 23 182 <br />Mr. Tom Gillis <br />Mined Land Reclamation Division <br />Colorado Department of Natural Resources <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Dear Tom: <br />MINED LAND RECLAMATION <br />Celo Dept. of Natural Resources <br />In response to CMLRD Stipulation 31 (OSM Stipulation 37), issued as parts of the <br />permits granted to Atlantic Richfield for its Mt. Gunnison No. 1 Mine, 1 have <br />enclosed a copy of a paper entitled The Use of the Similarity Index in Evaluating <br />Reclamation Success at the Mt. Gunnison Mine. The paper, prepared by Atlantic <br />Richfield, suggests the use of a similarity index as an alternative to the Shannon- <br />Wiener Index as a measure of species diversity in evaluating reclamation success. <br />I would appreciate your review and comments on this proposed alternative measure <br />of reclamation success. Mr. Larry Kline of our Environmental Services Group and I <br />are available to discuss this proposal with you and representatives from the OSM at <br />your earliest convenience so that we may agree upon an acceptable success criteria <br />for species diversity on reclaimed areas. <br />If you have any questions, please do not hesitate to call Larry Kline at 575-7505 or <br />me at 575-7949. <br />Sincerely, <br />~~~~~~ <br />Paige B. Beville <br />Senior Permits Coordinator <br />Permits and Compliance <br />cc: T. F. Linn/DAT 1871 <br />P. H. Haller/DAT 1865 <br />R. Benson/Holland be Hart <br />L. G• Kline/DLT 1136 <br />W. Swain/OSM <br />PBB/blh <br />n,,. r r...a ~...r .~., ~-. nia...n.. .,, nnmp mcnrann ~,m•~, <br />