Laserfiche WebLink
-_._. S <br /> <br />.1 <br />MINING PLAN <br />Does the operator anticipate that mining will take place for less <br />than 180 days per year due to weather or other constraints? If so, <br />the application should be revised to include provisions for <br />intermittent mining pursuant to Rule 1.13.7. <br />Please indicate, on exhibits C1 and C2, the area occupied by the <br />hydropower conduit that will not be disturbed by actual mining, but <br />only by access roadway. This information will need to be revised <br />in the future, via permit modification, should the operator secure <br />an agreement with the hydropower conduit owner and choose to mine <br />this area. <br />Please be aware that the structures, described in the Stormwater <br />Discharge Permit, that are used to control sediment loss from the <br />site will need to be incorporated into the reclamation permit. <br />This can either be handled through this application process or <br />through a future technical revision; as soon as the Stormwater <br />Discharge Permit is approved by the Colorado Department of Health. <br />The structures will need to be included in permit text and on the <br />permit maps at that time. <br />Please provide detailed information regarding the location of the <br />proposed wash facility and the design and function of the <br />associated sediment controls. These items will also need to be <br />included on the mine plan and reclamation maps. <br />If hazardous materials such as fuel, hydraulic oil, antifreeze, <br />etc. will be stored on site, please provide details as to the <br />location and construction of an adequate spill containment <br />structure. <br />RECLAMATION PLAN <br />Your adequacy review response indicated that mining will progress <br />at, and final slopes will have a grade of 2.5:1 or less. Please <br />correct the contours on Exhibit F to indicate this revised final <br />slope topography. <br />Pursuant to rule 3.1.5(1),(3) and (7), please provide an adequate <br />demonstration, such as a certified engineer's report, that the <br />maximum 2.5:1 slopes will be stable so as to be compatible with the <br />proposed residential end land use. <br />The operator should either sample the area to be disturbed to <br />document that enough topsoil is available to allow replacement of <br />the proposed minimum 6 inch depth (12 inches is preferable) on the <br />areas to be reclaimed, or commit to importing enough plant growth <br />medium to make up for any deficit. Should analysis of the <br />overburden prove that it is an acceptable plant growth medium, then <br />this material could be used under the topsoil to make up the <br />deficit. <br />