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<br /> <br /> <br />8. What is the present capacity of the recirculation pond? A Note on the <br />Pre-Mining P~1ap indicates that "there are plans to clean out the <br />built-up silt .". Please describe these plans in more detail. Is <br />this measure necessary to insure that there will not be another <br />off-site discharge during a major storm event? <br />9. Please discuss the drainage plan for the site in more detail, and <br />confirm that all runoff from disturbed areas will be contained on site <br />in sedimentation ponds or similar structures. <br />10. Please revise your Maps to show the location of the Columbia Ditch, and <br />discuss in more detail your plans to establish a drainage along the <br />east boundary of the site to convey tailwaters from this structure. <br />Reclamation Costs (Exhibit L) <br />11. Rule 7.3(1) of the Mineral Rules and Regulations states that the "Board <br />or Division shall prescribe the amount and duration of Financial <br />Warranties ". The reason for requiring a financial warranty is to <br />insure that the State will have sufficient funds available to <br />completely reclaim the site should the operator default. Consequently, <br />the Board (or Division) generally sets the bond amount based on what <br />would have to be spent by the State, using private contractors, to have <br />the site fully reclaimed in the event the operator abandoned the site <br />at the time of maximum disturbance. <br />We again recommend that you revise your reclamation cost estimate as <br />described in paragraph #3 of our letter dated April 23, 1990. Be <br />advised that you r• estimate should also reflect costs associated with <br />demolition and/or removal of buildings and other improvements (see #5 <br />above). <br />