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/' • <br />Reclamation Ptan (Exhibit E) <br /> s~, <br /> j. <br /> L~` <br /> J <br />4 <br /> <br /> <br /> <br />~ ~~ ' I " <br />1,. . <br /> 4 <br />~,, .. <br />• <br />1. You propose to have water storage reservoirs as a central feature <br />of the site after reclamation is complete, but you did not provide ~ ~ ~~ <br />any information concerning the source of water to be stored. <br />Please provide additional information regarding both physical and <br />legal availability of water to meet not only the water requirements <br />during mining, but to demonstrate that the final land use <br />(reservoir) subsequent to reclamation can be achieved. <br />2. Please provide additional information concerning the clay liner to <br />be constructed to seal the ponds. Will the materials for this ~p,~.e,f~ll~ <br />liner be generated on-site or imported? What is the expected in- <br />situ hydraulic conductivity of this liner? <br />3. The application contains an SCS report which includes reclamation <br />recomendations and a proposed seeding mix. There is, however, no <br />indication that these SCS recommendations will be followed. Please <br />commit to following the SCS recommendations in their entirety, or <br />indicate how your reclamation/revegetation plan will deviate from <br />what the SCS has proposed. <br />Water Information (Exhibit G <br />1. The application states that the mining area is within the 100-year <br />flood plain. Please provide mapping delineating the 100-year flood Ulf i <br />plain limits. What is the discharge associated with this event? ~ k <br />What flow velocities are anticipated in the mine area during such a <br />flood? 0 V <br />2. You propose to build up and armor an existing dike on the south <br />edge of Cell A, leaving a depressed area about 100 feet in length <br />to allow controlled inflow of flood waters into the pit. At what Dk <br />recurrence interval can discharge of stormwater into the pit be <br />expected? What is the capacity of this weir section? ~1~U. v5 . r~~u(~IN h r~ <br />3. You propose to leave a similar depressed area in the dike to <br />control flow from Cell A to Cell B. What is the length of this <br />depression? What is its capacity? What are the design <br />characteristics and capacity of the proposed culvert between the c~a~~•,' ~w~l~r <br />cells? <br />4. Please provide additional information concerning your ability to <br />provide replacement water for well owners if local wells are <br />rendered unusable as a result of your dewatering operations. <br />(Please note the enclosed letter from the Central Colorado Water <br />Conservancy District expressing concerns that its wells will be <br />materially damaged; note also that CCWCD has requested a Formal ~..,~( <br />Public Hearing in connection with this matter.) <br />