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--- THE PITTSBURG S, MIDWAY COAL MINING CO. EDNA MINE OAK CREEK, COLORADO 80467 • DfARCH 1 9 1 98 2 Mr i. %~. ae+ ~a 1 jV ~,.-. p..,GR Ms. Carol Russell, Reclamation Specialist Mined Land Reclamation Division ~,,;~ ~ : 1Sc2 Department of Natural Resources 1313 Sherman Street, Room 423 Denver, Colorado 80203-2273 t~?I~;tU LL•isJ I;~Cl.::i;~?~7;~~J CO[0. ''JB,1L. Ui f1~:?:Il?i ~i~0!!fCn^ Dear Carol, The Edna Dune Stipulations, Permit C-001-80 (Nov. 16, 1981), numbers 6, 7, and 8 require establishment of revegetation standards for D•4offat area woody plant density and species diversity and West Ridge cover percentages for the purposes of evaluating revegetation success for bond releasal at the end of bonding liability periods. These standards are to be arrived at in conjunction • with the MLRD by Dlarch 31, 1982. The enclosed materials are submitted in order to meet the requirements of these stipulations. Current reclamation/revegetation technology and practices and initial revegetation data taken from mines in northwest Colorado on areas reclaimed under current reclamation la?.~s indicate that the goals proposed herein can be achieved within the bonding liability period. During the process of formulating the revegetation success criteria the DiLRD indicated that at present it isn't . totally satisfied with the Shannon-A'iener methods of vegetational analysis (which ~,~ere used in the formulation of the criteria called for by these stipu- lations) and that in the near future alternative methods for determining re- vegetation success for bond release will be promulgated by the Division. Al- though PF,D1 is confident that these proposed goals can be met, the option to change these revegetation evaluation criteria in the future is reserved. Re- • evaluation of the requirements may be precipitated by revegetation sampling