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ASPHALT �TJ <br /> SPECIALTIES CO . <br /> 10100 Dallas St. • Henderson, CO 80640 • (303) 289-8555 • Fax: (720) 289-7707 <br /> November 25, 2019 <br /> Mr. Eric Scott <br /> Colorado Division of Reclamation, Mining, and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, Colorado 80203 <br /> RE: Technical Revision No. 6 (TR-06) for ASCI's Turnpike Mining Resource, DRMS Permit <br /> No. M-2004-009 <br /> Mr. Scott: <br /> Please find the enclosed TR-06 for Asphalt Specialties Co., Inc. (ASCI) - Turnpike Mining <br /> Resource (Site). As discussed, the Plumb and Dailey Ditch Co. will line the portion of their ditch <br /> that traverses the Site with concrete during the 2019 —2020 non-irrigation season. The concrete <br /> lining will provide hydraulic isolation of the Plumb and Dailey Ditch from the local water table <br /> and prevent future mine dewatering operations from affecting ditch flow. Therefore, construction <br /> of the hydraulic barrier trench, approved in 2012 as part of Amendment 2 for the Site, is no <br /> longer necessary prior to ASCI mining Cells 4 and 5 in the future. Also enclosed is a check for <br /> $216.00 (Check#110064) to cover the TR processing fee. <br /> Please contact me at GregG�ii,asphaltspecialties.com or 720-322-7055 if you have any questions. <br /> Sincerely, <br /> Greg Geras <br /> Land Resource Manager <br /> Asphalt Specialties Co., Inc. <br />