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TaUVI?SSS <br />1985'/2 SOUTH BROADWAY <br />DAUB & ASSOCIATES, 1NC. GRAND JUNCTION, CO 81507-9649 <br />a-'' ??t r /?•,?., " (970) 254-1224 <br />ff;}' ,? t }t a ,` _ FAX (970) 242-8438 <br />email 'gjdaub@daubandassociates.com <br />www.daubandassociates.com <br />August 9, 2010 <br />Mr. Travis Marshall <br />Grand Junction Field Office <br />Colorado Division of Reclamation, Mining and Safety <br />101 South 3rd, Suite 301 <br />Grand Junction, CO 81501 <br />RECEIVED <br />AUG 10 2010 <br />?o aJCrF9C <br />GIWD AR s ;... <br />OF <br />RECLAMAT"?' E i?41fi Y SAFETY <br />RECEIVED <br />AUG 16 2011 <br />Division of <br />Re: Response DRMS letter dated August 3, 2010 conce ng PeM #Nd <br />1983-194, echnical Revision No. 31 application. <br />Dear Mr. Marshall: <br />Thank you for reviewing Natural Soda's Technical Revision No. 31 application. This <br />correspondence will address the two clarifications you requested in your letter. <br />1) Access to the 121-1-1 and 12H-R will be by way of the existing 11 pad access <br />route. The 121-1-I, 12H-R pad will be located immediately adjacent to and north <br />of the 11 pad. No new access roads are planned. <br />2) NSI has had no issues, to date, with the plug and abandonment and/or <br />reclamation cost estimates as calculated by DRMS. Provided that there have <br />been no gross revisions in the DRMS costing methodology NSI is satisfied with <br />DRMS cost estimates for P&A and reclamation. <br />If you need any additional information, please contact me at (970) 254-1224 or (970) <br />216-1010 (c). <br />Regards, <br />Gerald J. Daub, PG, CPG, <br />President Daub & Associates, Inc. <br />Cc: Bob Warneke, Natural Soda, Inc. <br />Paul Daggett, BLM, White River Field Office <br />SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING <br />SERVICES