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Timothy Pierce, for Rimrock Exploration and Development, Inc. <br />P.O. Box 430 <br />Nucla, Colorado 81424 <br />Mr. Russ Means <br />Colorado Division of Reclamation, Mining, and Safety <br />Grand Junction Field Office <br />101 South 3` Ave, Suite 301 <br />Grand Junction, CO 81501 <br />Dear Mr. Means; <br />Timothy W. Pierce <br />cdpierce35 @aol.com <br />970 - 864 -7455 <br />9 February, 2012 <br />RECEIVED <br />PLi b 13 2012 <br />GRAND skim.; I ►uh HELD OFFICE <br />RECLAMATION MINING & SAFETY <br />RE: Response to DRMS Comments on J -Bird Mine Permit M- 2005 -050 Technical Revision 02 <br />Rimrock Exploration and Development, Inc. (Rimrock) is submitting a response to the <br />Division's review letter dated September 26, 2011 and the December 6, 2011 memorandum from <br />Tim Cazier to Russ Means that requested additional information regarding the surface water <br />detention pond spillway design(s) and the Surface Water Management and Controls Analysis <br />submitted as a part of Technical Revision 02 to Permit M- 2005 -050. <br />The technical issues regarding the design of the surface water structures at the site appear to have <br />been resolved, at least in discussions between the Division's engineer and Rimrock's engineer. <br />Rimrock has made several design changes in the proposed surface water management facilities <br />based on the feedback received from the Division's engineer and these changes are included in <br />the attached revised drawings and narrative for formal review by the Division. <br />Please contact me at 970 - 864 -7455 with any questions regarding these responses. Alternatively, <br />if I cannot be reached, then please call Alan Chiles at 970 - 417 -1239 for information. <br />