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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />September 7, 2010 <br />RECS?JVED <br />COLORADO <br />D I V I S I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br /> ??? 1. 'J ?oto James B. Martin <br />I Executive Director <br />Mr. Bob Wameke <br />Natural Soda, Inc. O1visio i v.:`w? i i liltlE?11, Loretta E. Pineda <br />3200 RBC 31 p g afrod SafeAy Director <br />Rifle, CO 81650 <br />Re: Nahcolite Project, Permit No. M-1983-194, Technical Revision Approval, Revision No. TR-30 <br />Dear Mr. Warneke: <br />On September 7, 2010 the Division of Reclamation, Mining and Safety approved the Technical Revision application <br />submitted to the Division on July 8, 2010, addressing the following: <br />The purpose of the revision is to expand the mine plan and revise the environmental monitoring program. <br />The terms of the Technical Revision No. 30 approved by the Division are hereby incorporated into Permit No. M-1983- <br />194. All other conditions and requirements of Permit No. M-1983-194 remain in full force and effect. <br />The estimated liability amount of $1,936,221.00 is adequate at this time. If you have not already done so, please submit <br />additional bond in the amount of $42,666.00 that accounts for the additional reclamation cost associated with Technical <br />Revision 31. The revision will not be final until the bond is approved by the Division. <br />If you have any questions, please contact me at (970) 241-2042. <br />Sincerely, <br />.-' -.? <br />Travis H. Marshall <br />Environmental Protection Specialist <br />Cc: Steve Shuey, DRMS <br />Paul Daggett, BLM - WRFO <br />Gerald J. Daub, Daub & Associates, Inc. <br />Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango <br />Office of <br />Active and Inactive Mines <br />