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1985'/z SOUTH BROADWAY <br /> DAUB & ASSOCIATES, INC. GRAND JUNCTION, CO 81507-9649 <br /> (970) 254-1224 <br /> FAX(970)242-8438 <br /> email: gjdaub@daubandassociates.com <br /> www.daubandassociates.com <br /> May 21, 2018 <br /> Division of Reclamation, Mining and Safety <br /> Attn: Minerals Division <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> Re: Natural Soda LLC Nahcolite Project Permit No. M-1983-194 Technical Revision, Addition <br /> of Subsurface Subsidence Monitoring Well 17H-SSMW <br /> Natural Soda LLC (NS) intends to drill one new subsurface subsidence monitor well (SSMW) in <br /> 2018. The 17H-SSMW will be located on a newly constructed pad with an approximate <br /> disturbance of 0.6 acres. A 10 to 12 foot wide by 240 foot long access road will also be <br /> constructed. The well design and location have been approved by the BLM. <br /> Please find attached: <br /> 1) DRIVIS Form - Request for TR Cover Sheet <br /> 2) Location Map <br /> 3) Survey Documents (plats, pad diagram, cut and fills, location photos) <br /> 4) Well construction diagram <br /> 5) Check# 3 / for the filing fee. ($1,006.00) <br /> Should you have any questions or comments, please contact me at (970) 254-1224 or <br /> (970) 216-1010 (c), or Kirk Daehling at (888) 464-7632 ext. 114. <br /> Regards, <br /> s0�;Z� <br /> Gerald J. Daub, PG, CPG <br /> President <br /> Daub & Associates, Inc. <br /> Cc: Kirk Daehling <br /> General Manager, Operations <br /> Natural Soda LLC <br /> Kent Walters <br /> Bureau of Land Management (WRFO) <br /> Travis Marshall (via email) <br /> Colorado Division of Reclamation, Mining and Safety <br /> Grand Junction Office <br /> SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />