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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1373 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303)832$106 <br />April 20, 2005 <br />COLORADO <br />DIVISION OF <br />MIN SRALS <br />GEOLOGY <br />RFCLAM ATION•NI NING <br />FAFETY•SCIENCE <br />Bill Owens <br />Governor <br />Brent Kerr Russell George <br />Executive Director <br />United /Old Castle Ronald W. Cattany <br />P.O. Box 3609 Division Director <br />Natural Resource Trustee <br />Grand Junction, CO 81502 <br />Re: 15 Road Pif, Permit No. M-2002-114, Seed Mix Substitution, Need For A Technical <br />Revision (TR-01). <br />Dear Mr. Kerr: <br />Staff has received United's request to change two species of vegetation within the originally <br />approved seed mix for the above referenced reclamation permit. After consultations with the <br />Denver Office it appears that the request will have to be done as a Technical Revision (TR-01). <br />Overall, the substitution of the Prairie Cord Grass and Nebraska Sedge for Canadian Reed <br />Grass and Carex appears to improve the overall mix over the original approved one. The only <br />question staff has is the pls /acre ratios and over all seeds per square foot for the species are <br />extremely different for reed grass and cord grass and must be addressed. A straight seed mix <br />substitution results in a different seeds per square foot ration that may not necessarily be <br />beneficial. Please submit the pls /acres ratios to be used with the substitute species and <br />overall changes in seeds per square foot with the TR Fee of $188.00. Upon receipt of the <br />information and the fee there should be no problem approving the change. Currently, United's <br />request will be filed as an "incomplete" TR request. <br />If you need additional information, please contact me at the Division of Minerals and Geology, <br />Grand Junction Field Office, 101 S. 3rd St., Suite 301, Grand Junction, Colorado 81501, <br />telephone no. 970.241.1117. <br />Sincerely, <br />~- <br />G. Russell Means <br />Environmental Protection Specialist <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />