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Mr. William S. Tate -4- February 17, 1982 <br />A larger scale and Legible geoloyic cross-section E-E' was submitted with the <br />new permit materials. This cross-section should satisfy the requirements for <br />geologic cross-sections. <br />The roof and floor analyses submitted in the permit application lacked sulfur- <br />form analyses ('a total sulfur, pyritic sulfur, o organic sulfur, and sulfate <br />sulfur), combustible solids analyses, and textural analyses. The Blue Ribbon <br />mine is making more waste rock from the mine than it can handle by back-stowing, <br />as originally planned. The mine's waste rock is being disposed of in the Red <br />Canyon mine's waste rock pile. The company needs to conduct the analyses <br />mentioned above to determine the acid-forming, alkaline-forming, combustibility, <br />and stability effects on placing this material in the Red Canyon mine's waste <br />rock pile, or in any other. waste rock pile or fill. The roof and floor samples, <br />if collected for the same location within the mine, could be analyzed for only <br />those parameters listed above and not have to analyzethese samples for the <br />entire list of parameters which the Division requires. These samples should be <br />collected, analyzed, and submitted soon, so that the permit finding on hydrologic <br />balance and waste rock disposal piles can be made by the Division. <br />Hydrology <br />Blue Ribbon Coal Company has submitted a mine inflow map, but the description <br />of the source and character of the inflow is missing within the text. This <br />inflow description should be submitted. <br />A new hydrology map should be submitted. This map should cover the area from <br />one mile above the permit boundary, down to the confluence of Hubbard Creek <br />with the North Fork of the Gunnison, and from one mile east of the permit <br />boundary to one mile west of the permit boundary. The map should contain all <br />ponds, impoundments, streams, diversion structures, irrigation ditches, head- <br />gates, wells, springs, surface monitoring stations, ground water monitoring <br />stations, and the width and extent of the alluvium in the Hubbard Creek Valley. <br />Blue Ribbon Coal Company should submit information on Deer Trail Ditch, which <br />is located between the mine and the confluence of Hubbard Creek and the North <br />Fork of the Gunnison. The following information should be submitted: 1) the <br />location of the ditch on the hydrology map, 2) the flow of water in the ditch, <br />and 3) the water rights held for the ditch. This information may be obtained <br />from the Delta County office of the State Engineer's, Water Resource Division. <br />Monitoring <br />Blue Ribbon Coal Company should prepare a section to the permit application <br />entitled 2.05.6(3)(b)(iii) - Ground and Surface [Dater Fonitoring Plan. This <br />plan must include the monitoring of the effects of Honing on the quality and <br />quantity of ground and surface waters. Cround water monitoring should include <br />the monitoring of water levels and water quality in the Hubbard Creek alluvial <br />well; flow and water quality of the spring below the mine bench; and the <br />mapping and description of mine inflows. A year's baseline water quality sampling <br />should be completed on the alluvial well and the spring, which should include <br />quarterly water quality analyses for those parameters in Attachment A and <br />