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Attachment B <br />Surface Excavation and Other Land Disturbance <br />Henderson intends to install five mud rotary exploration drilling pads on Red Mountain. Roads <br />will be rehabilitated and constructed to access the drilling site using a D6 track dozer or similar <br />equipment. Existing roads will be rehabilitated by constructing of a 2 1/2 ft berm and 10ft wide <br />workable road surface. New roads will be constructed by cut and fill to achieve a 10ft wide <br />workable surface and have a 2 1/2 ft safety berm as in Figure B -1. Culverts will be used to control <br />erosion and drainage as need. <br />The drill site will be construct to an approximate dimension of 100ft by 50ft to accommodate <br />drilling operations using a the same equipment used to construct the roads. The drill site will <br />have sumps constructed that are approximately 10ft by 10ft and 3ft deep at the deepest point. <br />The sumps will be lined with heavy plastic sheeting to contain drilling water that can be recycled <br />for use in the drilling operations. The volume of the sumps will be approximately 1,100 gallons. <br />A generalized layout of a drill site is in Figure B -2. <br />