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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 C O L O RA D O <br />Denver, Colorado 80203 D I V 1 5 1 0 N O F <br />Phone: (303) 866-3567 MINERAL S <br /> <br />FAX: (3031 832-8706 G E O L O G Y <br /> REC IAM ATION•NINING <br /> SAFETY•SCIENCE <br />Bill Owens <br />TO: David Berry Governor <br />FROM: Sandy Brown Russell ceage <br />DATE: February 16, 2006 Executive Director <br />RE: Forfeited Mine Summary & Proposed Revegetation Sampling Ronald w. CaRany <br />Division Director <br />Natural Resource Trustee <br />In an effort to prioritize revegetation sampling efforts at the forfeited mine sites I have <br />created the attached table. This table lists the forfeited mines, the year(s) they were <br />seeded and the amount of remaining bond money. <br />The following sites are recommended for revegetation sampling this summer: <br />Grassy Gap -This will be the second year of sampling. Janet Binns is the <br />sampling coordinator. We plan to sample the end or June or first week of July. <br />Twin Pines - We will initiate sampling in June. Kent Gorham is corresponding <br />with the landowner and leasee to gain access and to determine final pond status. <br />I will be the sampling coordinator. Kent and Dan M. have volunteered to help. <br />Last summer we sampled at OC#2 hoping the revegetation would be successful. <br />Revegetation on the hillslope is sparse and the final results showed the cover and <br />production were both below the standard. Since, there is money left we will take <br />measures to improve the revegetation. Dan Mathews has been corresponding with the <br />landowner to develop a plan to improve revegetation success on the slope. Dan Mathews <br />will take the lead on this site and work with the landowner, Castleton Ranch. We will <br />keep you updated as plans aze drafred. <br />The Blue Flame Mine was sampled in the summers of 2002 and 2003. The site achieved <br />the cover and production standards. The reclaimed site is characterized by a diverse, <br />permanent vegetation and would qualify for release. In May 2004 a contractor repaired <br />some subsidence damage above the reclaimed portal and redisturbed a small area of the <br />revegetation. I do not believe additional vegetation sampling is warranted at this site. I <br />think we can rely on the data collected previously when the site is stabilized. <br />The proposed sampling for the summer of 2007 will include: Twin Pines, TBM, and <br />Coal Gulch/Arness McGriffin. <br />c. Dan Hernandez <br />Janet Binns <br />Dan Mathews <br />Office of Office of Colorado <br />Mined Land Reclamation Attive and Inactive Mines Geological Survey <br />