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<br />~~ <br />~ ~;., <br />t; t: <br />A~iLtO to Tim Krocesky <br />June !5, 100/ -Adq. Rev. Ltr./M-1001-035/TroutCreek Pit <br />Page 3 <br />17. Will the sand extraction proposed for Area B intercept the creek as it flows underground? If it does and <br />water is exposed to the atmosphere, you will be required to commit to recovering the water to a depth of <br />at least two feet or you will be required to provide the Division evidence from the State Engineer's <br />office of your right to expose ground water. If ground water will be exposed, the reclamation plan must <br />be changed to reflect that land use. <br />18. How will the flows of flood events such as a 10 year 24 hour storm in the Trout Creek Drainage be <br />handled through the permit area? <br />Exhibit S-Permanent Msn-Made Structures <br />19. Show the concrete lined ditch that is within Area B on the pre-mining, mining and reclamation maps (if <br />it will remain upon reclamation) and address (a) or (b) of Rule 6.4.19 as appropriaze. <br />Geotechnicsl Stability Exhibit <br />20. in accordance with Rule 6.5 (1), provide an evaluation (Geotechnical stability analysis) of the quarry <br />highwall during mining and upon completion of the mining operation. You have stated that the bench <br />width may range from 6 to 10 feet. Use that bench width range in completing your analysis. <br />21. In accordance with Rule 6.5(4) demonstrate through appropriate blasting, vibration, geotechnical, and <br />structural engineering analyses that the roller compacted concrete dam on Trout Creek will not be <br />adversely affected by blasting. <br />ehd\OOedequacy lenen\lim krooesky m-2001-075 518-01 Ido <br />