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1985 'h SOUTH BROADWAY <br /> GRAND JUNCTION, CO 81507-9649 <br /> DAUB &ASSOCIATES, INC. ri (970)254-1224 <br /> FAX(970) 242-8438 <br /> � - �` �' ,. ✓. `�. �"�. email: gjdaub@daubandassociates.com <br /> www.daubandassoti <br /> V�]� <br /> November 3, 2022 Ipp11 ��r <br /> Division of Reclamation, Mining and Safety <br /> NOV 0 8 2022 <br /> Room 215, c/o: Minerals Division, ATTN: Travis Marshall D►VISION OF RECLAMATION <br /> 1001 E 62 Ave. MINING AND SAFETY <br /> Denver, CO 80216 <br /> Re: Natural Soda LLC Nahcolite Project Permit No. M-1983-194 - Memorandum of <br /> Understanding (MoU) — Updates to Disturbed Acreage and Plugged and Abandoned <br /> (P&A'd) Wells <br /> Natural Soda LLC (NS) notes that the DRMS's recent site visit and subsequent inspection <br /> report, dated September 20, 2022 stated: <br /> "Observations of reclamation was conducted on the following access roads and <br /> pads for the MMC-IRI-2, R, P, Q, E, D, 94-1M, H, C, and N. Successful <br /> vegetation was observed on all locations. Weeds were observed on H, C, and N <br /> pads and their associated accesses." NS comments: H, C, and N pads were not <br /> removed from disturbed acreage due to weeds. <br /> The DRMS's recognition of the successful reclamation of the above areas results in a 5.483 <br /> acre reduction of Natural Soda's disturbed acreage. In summary, we understand: <br /> Prior Permit Acreage 12,248 <br /> Current Permit Acreage 12,248 <br /> Change in Permit Acreage 0 <br /> Prior Total Disturbed Acreage 103.698 <br /> Current Total Disturbed Acreage 98.215 <br /> Disturbed Acreage Reduction 5.483 <br /> NS understands that this reduction of disturbed acreage along with the 2022 P&A'd wells (90-1, <br /> BG-1, DS-2, DVPW-1(A&B), 16H-R, and 3M-TDR [Nov 2022]) will effect CIRCES calculations <br /> and should be considered at the time of the next Technical Revision (TR) CIRCES recalculation. <br /> SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />