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SUMMIT ENGINEERING C 0 1 ENGINEERS & LAND SURVEYORS <br /> Mail: P.O. Box 1897 Alamosa, CO 81101 P: 719-589-6147 E: summitengco@gmail.com <br /> the site during reclamation. This soil will be placed in separated stockpiles at the <br /> base of mesa in the southeastern portion of the site mentioned previously. <br /> c) There will be no overburden or waste rock after the initial topsoil is removed. <br /> d) It is anticipated that mining direction will be into the side of the mesa near the top <br /> cliffs of basalt rather than down into the ground. Excavation into the hill will be <br /> well within the permit boundary, and depth from the top of the hill should not <br /> exceed forty (40) feet. Under no circumstances will excavation reach a depth <br /> below the surface of the irrigated field south of the permit boundary. <br /> e) Major components of this mining operation are shown in the maps provided in <br /> the previous exhibit and will include the following: <br /> • A twenty-foot wide gravel access road from the base of the mesa to the <br /> top of the mesa. <br /> • A 300'x150' area at the base of the mesa and south end of the permit <br /> boundary for a concrete and asphalt batch plant. <br /> f) Significant disturbances to the land will be limited to side of the mesa within the <br /> permit boundary. <br /> g) An existing 20' gravel road is the only will be the only road serving this mining <br /> operation. The gravel road extends from the top of the mesa, through the entry, <br /> around the field south of the permit boundary, and on to Conejos County Road H. <br /> There are no new improvements, or proposed roads included in this project. <br /> h) Water will be used for dust suppression and will come from Robins Construction <br /> nearby yard in tank trucks. The Division of Water Resources has given Robins <br /> permission to use up to 37-acre feet maximum in any one year, and an average <br /> of 9-acre feet per year in any 5-year period. After mining is completed, this water <br /> will be used for operation of the concrete batch plant and asphalt hot plant. <br /> i) Mining will immediately cease at any depth where ground water is encountered. <br /> It is highly unlikely, based on our investigation, that groundwater will be <br /> encountered at any time of the year. <br /> j) Both Robins and Summit has, and will continue to, work closely with Division 3 of <br /> the Colorado Water Resources to ensure all applicable Colorado water laws and <br /> regulations are conformed to. <br /> k) Operations are not anticipated to expose any refuse, acidic, or toxic materials <br /> during excavation. If such materials are encountered the operator will dispose of <br /> them according to current federal, state, and county regulations. <br /> 1) In response to the increased area of proposed mining, the operator will ensure <br /> that if any open areas develop in the course of operation these areas will <br /> Job # 1200710MP - C Pagel 14of79 <br />