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EXHIBIT C <br />MINING PLAN <br />Rio Blanco County Road and Bridge intend to pursue this proposed gravel pit as a <br />periodic aggregate source for projects in the Rangely area. <br />Access to the site is from nearby Rio Blanco County Road no. 122. <br />Mining operations (crushers, conveyors, dozers and scrapers) will be located in the <br />Northern portion of the gravel pit. The topsoil will be stripped and stockpiled in the <br />Easterly area of the mine site. This stockpile will accumulate over the life of the pit, but <br />will be re-vegetated within a 90 day time frame. Only the immediate azea of disturbance <br />will be striped of topsoil to cut down on the amount of stockpile. It is anticipated that <br />the immediate area of disturbance will encompass no more then 4 acres at any time. <br />This topsoil stockpile shall have a maximum of 3:1 side slope and be re-vegetated with <br />the attached recommended BLM mixture for stabilization. The gravel will be pushed <br />generally from Southerly to Northerly to the mining operations site. All mining and <br />processing operation will be designed to manage storm water runoff, so that no sediments <br />flow to existing drainage. Exposed azeas will have small swales constructed along <br />contour lines spaced at convenient intervals to control erosion. At the base of the mining <br />operation an additional swale will be constructed as a safety measure to control runoff <br />within that particular area. Noxious weeds will be controlled on all disturbed areas by <br />approved mechanical method or an Environment Protection Agency (EPA) registered <br />herbicide as approved by the Bureau of Land Management. <br />The gravel bed lies under about 6 inches of topsoil and approximately 4 feet of <br />overburden. The gravel bed is an approximate 10 foot thick layer. There will be a <br />maximum of 20,000 tons of gravel removed a year. Finished products will be stockpiled <br />on site. <br />A. The estimated daze that mining will commence is May 2002. Mining is estimated <br />to continue for approximately ten yeazs. <br />B. The estimated depth of topsoil is 6 inches (see EXHIBIT E -map, for stockpile <br />location) <br />C. The estimated depth of overburden is 4 feet <br />D. The thickness of the gravel deposit to be mined is approximately 10 feet. <br />E. The mining operation facilities will be located in the Northern area of the site (see <br />EXHIBIT E -map, for the operations location) <br />