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1985% SOUTH BROADWAY <br /> DAUB & ASSOCIATES, INC. GRAND JUNCTION,CO 81507-9649 <br /> (970)254-1224 <br /> FAX 970 �email: 91daub@daubandassociates.com <br /> www.daubandassociates.com <br /> May 18, 2017 <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 Amendment 04: <br /> Permit Area Increase, Addition of Seven New Production Wells, 16 Inch <br /> Production Pipelines, and Parking Area <br /> Natural Soda LLC (NS), hereby submits this 112d(3) Permit Amendment package by <br /> request of the DRMS. Amendment 04 increases NS's permit area to approximately <br /> 12,248 acres from 8,379, more or less. The increase in acreage is a '/ mile <br /> perimeter around the lease boundaries. This perimeter was added to allow NS to <br /> drill off-lease production well surface locations so they may fully develop the <br /> nahcolite resource within the Federal Sodium Lease boundary. NS has been drilling <br /> off-lease since the early 1990's with BLM and EPA approval. <br /> Additionally, NS is adding seven new wells with this amendment. The 12H-IR, <br /> 401 H-1, 401 H-R (options 1 and 2 for both 401 wells), 4021-1-1 402H-R, 4031-1-1, and <br /> 403H-R. The surface location for these wells will be located on pre-existing <br /> disturbed ground, some of which has been interim reclaimed and will require top soil <br /> removal and some minor grading. The 12H-IR will be located on the NS 1-3A/2B-3C <br /> pad, the 401 H (Option 1), 402H, and 403H well pairs will be located on a Terra <br /> Energy Partners pad, and the 401 H (Option 2) is on the NS 71-1-1 V pad. <br /> NS is adding two new 16 inch insulated carbon steel production pipelines. These <br /> pipelines will extend approximately 4,170 feet from the NS plant southward to the <br /> vicinity of the 15H-SSMW well, southwest of the plant. These lines will be insulated <br /> and laid on the ground. The 16 inch barren (well supply) line will be installed in <br /> 2017, and the pregnant (returns to plant) pipeline will be installed in 2018. <br /> NS will grade a small area south of the plant to accommodate employee parking that <br /> is 62 feet by 94 feet in size. This parking area will be in the vicinity of the 89 well <br /> pad, immediately south of the NS plant. <br /> SPECIALIZING IN PROFESSIONAL GEOLOGICAL, ENVIRONMENTAL, HYDROLOGICAL, GEOTECHNICAL AND PERMITTING SERVICES <br />