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DAUB & ASSOCIATES, INC. <br />November 9, 2015 <br />Ms. Barbara Coria <br />Division of Reclamation, Mining and Safety <br />Attn: Minerals Division <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />1985% SOUTH BROADWAY <br />GRAND JUNCTION, CO 81507-9649 <br />(970) 254-1224 <br />FAX (970) 242-8438 <br />email: gjdaub@daubandassociates.com <br />www.daubandassociates.com <br />NOV 16 2015 <br />DMSION OF RECLAMATION <br />MINING AND SAFETY <br />Re: Nahcolite Project , Permit M-1983-194, Revision SO -5 Rock School Lease <br />Experimental Nahcolite Mine, Permit M-1999-051, Revision SO -02 <br />Inadequate Application for Transfer of Mineral Permit and Succession of <br />Operations Nahcolite Project <br />Dear Ms Coria, <br />S002 <br />In your letter dated August 12, 2015 with the above reference, you requested to <br />have the required documents by October 11, 2015. Previous documents were <br />submitted to DRMS that were deemed inadequate. NS apologizes for not being able <br />to meet this deadline. <br />Attached please find the following document: <br />134-32 Natural Soda Subsidence 11-09-15 <br />The document is a letter report from Dr. Michael P. Hardy, PE, PhD, President of <br />Agapito Associates, Inc., with respect to the confirmation of structural competency of <br />the NS surface infrastructure. <br />Thank you for your time and consideration. Should you have any questions or <br />comments, please contact me at (970) 254-1224 or (970) 216-1010 (c). <br />Regards, <br />Gerald J. Daub, PG, CPG <br />President <br />Daub & Associates, Inc. <br />✓ Compliance <br />✓ NO Violations <br />Cc: Travis Marshall, Division of Reclamation, Mining & Safety <br />Timothy R. Buchanan, Director, Enirgi Group Corporation <br />Kirk Daehling, Plant Manager, Natural Soda LLC <br />SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />