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Banks and Gesso, LLC <br />the perimeter of each phase and seeded if the berm will remain for more than one <br />growing season. During subsequent stripping operations, overburden from one area <br />may be placed directly in other areas being concurrently reclaimed <br />An average depth of approximately 4 ft of overburden exists over the entire site area. <br />The average depth of sand and gravel ranges from 20 feet in the southernmost 20 acres <br />and increases to approximately 40 feet in depth in the next 20 acre area immediately <br />north. From this point northward, the average depth of sand and gravel is approximately <br />60 feet. <br />Water Diversions and Impoundments <br />The entire site will be graded to direct stormwater runoff towards the excavation area for <br />use in process water. With evaporation losses and the ability of the stormwater to seep <br />into the ground, there should be no need to discharge stormwater that is collected on the <br />site. The settling and clarification ponds for the process water will be located along the <br />western side of the Phase 1 area. Ponds will be maintained below existing grades so <br />that any precipitation will be retained in these areas. <br />The Applicant will (through the Purchase Contract] obtain approximately 159 shares of <br />water from the Uncompahgre Valley Water Users' Association, which will deliver <br />approximately 658 acre-feet per year, portions of which will be used as processing <br />water. The processing water system will largely be a closed circuit system. Water will <br />initially be diverted from the ditch in the southwestern corner of the site to the processing <br />area. The water will then be directed into the aggregate cleaning operation where it will <br />be used to wash the material of fines. Washing water will then be directed into a series <br />of settling and clarification ponds. After the water has clarified and the fines settled to <br />the bottom of the ponds, the water will then be directed back into the washing operation. <br />Only the amount of water needed for washing will be diverted from the ditch and no <br />process water will be discharged from the site. <br />Operations Timetable <br />Mining is estimated to be completed within 21 years from the date of start-up. Final <br />reclamation of the mined area will be completed within 2 years of the total completion of <br />all mining operations on site. Table 1 below summarizes the approximate size of the <br />Haldorson Sand and Gravel Mine 03023 <br />Haldorson and Sons, Inc. April 2003 <br />6 <br />