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Rifle Gave! Pit #1 Maich 2021 <br /> to submit a minor amendment to the Garfield County Land Use Change Permit to allow for <br /> expanded mining in the future. <br /> It should be noted that the dewatering pipeline on the Shideler property will already be <br /> installed and the associated disturbance will be revegetated during mining extraction. <br /> The location of the mining equipment in the bottom of the pit will support mitigation of the <br /> mining noise and dust. All stockpiling of material at this point also be done at this level. <br /> 5.2.3.1 Stockpiling and Overburden Handling <br /> This phase of the project will include stockpiling of material for screening,washing and <br /> crushing processes. Sheets C5 and C6 in the Drawings (Attachment A) depict the <br /> approximate location of the stockpiles. Equipment for this phase will include, but not be <br /> limited to, a bulldozer, track-hoe, and a 35-ton haul truck. <br /> 5.2.3.2 Water Handling and Dewatering <br /> Phase 1 dewatering activities will continue throughout this phase. Any water encountered at <br /> the bottom of the pit during this phase will be intercepted by a buried perforated pipe <br /> (estimated at three feet below the mining floor). It is assumed that any water captured in the <br /> perforated pipe will be pumped by the dewatering well. <br /> Scott will comply with the State Engineer Office's (SEO) rules and regulations regarding any <br /> water depletions that may also occur during mining operations from water lost with mined <br /> aggregate and water used for dust suppression. <br /> 5.2.3.3 Schedule of Operations <br /> The Rifle Gravel Pit will operate from 7 am to 7 pm Monday through Friday, and occasional <br /> weekends, as needed. Scott will limit winter operation hours between the hours of 7 a.m. <br /> and 5 p.m. Approximately 5 employees will be on site during this phase of the mining <br /> operations. No nighttime activities are anticipated. Occasional equipment repair, or <br /> maintenance may be conducted at night, but lighting will be kept to a minimum and directed <br /> inward; the site will not have ambient lighting. <br /> 5.2.4 Reclamation (Phase 4) <br /> The reclamation of the property will be completed as each mining stage is completed, per <br /> Sheet C8 of the Drawings (Attachment A) and restored back to natural conditions upon <br /> completion of each stage of mining activities. Upon completion of all mining stages, Scott <br /> will cease dewatering in order to allow water to infiltrate the pit and create the final reclaimed <br /> pond condition. See Section 6 for additional information regarding reclamation of the <br /> property and Attachment A drawings (Sheet C8). <br /> 5.3 Mining Timetable <br /> Scott anticipates extracting approximately 1-2 million tons of sand and gravel over the initial <br /> (Stages 1 and 2) 4 years of mining. There are no incidental materials expected to be <br /> extracted from this site. <br /> 21 <br />