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• Vv <br /> c <br /> 19851/2 SOUTH BROADWAY <br /> /DAUB & ASSOCIATES, INC. GRAND JUNCTION, CO 81507-9649 <br /> _ „2/NN (970)254-1224 <br /> f , 9 � 7 ` , ` t`i/1t : FAX(970)242-8438 <br /> email: gjdaub@daubandassociates.com <br /> www.daubandassociates.com <br /> April 22, 2016 RECEIVED <br /> Division of Reclamation, Mining and Safety "APR 2 6 2016 <br /> Attn: Minerals Division DIVISION OF RECLAMATION <br /> 1313 Sherman Street, Room 215 MINING AND SAFETY <br /> Denver, CO 80203 11q <br /> Re: Natural Soda LLC Nahcolite Project Permit No. M-1983-194 Technical <br /> Revision No. 39, Addition of Subsurface Subsidence Monitoring Well <br /> 15H-SSMW <br /> Natural Soda LLC (NS), plans to drill one new subsurface subsidence monitoring <br /> well in 2016. The 15HH-SSMW (Subsurface Subsidence Monitoring Well) is <br /> required by the EPA and will monitor the 15H production wellpair, to be drilled in <br /> 2016, and the 16H production pair. The 15H-SSMW pad will be located on the <br /> preexisting 4-3HV pad, therefore no new surface disturbance will occur. The access <br /> road will be immediately adjacent to the 8H production pipeline. The well design and <br /> location have been approved by the BLM. <br /> Please find attached: <br /> 1) Location Map <br /> 2) Survey Documents (plats, pad diagram, cut and fills, location photos) <br /> 3) Well construction diagram <br /> 4) Check # G 9/o for the filing fee. ($1,006.00) <br /> Should you have any questions or comments, please contact me at (970) 254-1224 <br /> or(970) 216-1010 (c), or Kirk Daehling at (888) 464-7632 ext. 114. <br /> Regards, <br /> .71://A2e4.1- <br /> Gerald J. Daub, PG, CPG v AF & Report <br /> President Ai No Violations <br /> Daub & Associates, Inc. <br /> Cc: Kirk Daehling <br /> Plant Manager <br /> Natural Soda LLC <br /> Paul Daggett <br /> Bureau of Land Management(WRFO) <br /> Travis Marshall <br /> Colorado Division of Reclamation, Mining and Safety <br /> Grand Junction Office <br /> SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />