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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 />February 6, 2008 <br />Mr. Steve Fancher <br />Loveland Ready-Mix Concrete, Inc. <br />P.O. Box 299 <br />Loveland, CO 80539-0299 <br />RE: Technical Revision Approval, Bokelman- Walters Pit, <br />Technical Revision TR-01, Permit No. M-2006-080 t/ <br />Dear Mr. Fancher: <br />COLORADO <br />D I V IS I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />On December 1. 2007 the Division of Reclamation, Mining, and Safety (DRMS) approved the Technical <br />Revision TR-01 application submitted to the DRMS on October 31, 2007, addressing the following: <br />Design for the Phase 1 Slurry Wall. <br />The Phase 1 slurry wall is currently bonded for 20 percent replacement cost, and submittal and approval of this <br />design report allows the bond to be maintained at the reduced level. Within 60-days following completion of <br />the slurry wall, you must provided the DRMS with a construction report documenting that the slurry wall was <br />constructed in accordance with the approved design. The report must include results of all geotechnical testing <br />conducted during construction, a description of any construction problems that occurred and how they were <br />resolved, and a description of and rationale for any variations from the approved design. Otherwise the DRMS <br />will increase the bond amount to 100 percent of the slurry wall replacement cost. <br />The terms of the Technical Revision No. 01 approved by the DRMS are hereby incorporated into Permit No. <br />M-2006-080. All other conditions and requirements of Permit No. M-2006-080 remain in full force and effect. <br />I apologize for the delay in issuing this approval letter. If you have any questions, please contact me at (303) <br />866-4063. <br />Since y, <br />f <br />Allen C. Sorenson <br />Reclamation Specialist <br />cc: Carl Mount, DRMS (via email) <br />c:\acs files\My Documents 4-19-06 thru\bokelman waiters pit tr 01 appvl.doc <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines