Laserfiche WebLink
An additional 166,000 cy is needed for Valley #2. A letter has been obtained from the USACOE <br />in Durango stating that these valleys do not contain jurisdictional waters of the United States. <br />See letter in Exhibit J - Vegetation. Only reject fines or overburden will be used to provide a <br />homogeneous fill for stability reasons. Fill will be spread in 12" lifts along the bottom of the <br />drainage. Using shallow lifts, a 90% maximum dry density will be achieved and is specified for <br />this fill. The spreading will be done with a D-8 Dozer equivalent or larger. To prevent sediment <br />from leaving the permit area during construction of the valley fill, and prior to the installation of <br />the storm water channel, an isolation berm will be constructed at the mouth of the drainage as <br />seen in Map C-2A and C-213. After the valley has been filled, the area will be topsoiled in a <br />similar fashion as the rest of the pit floor. This will be further discussed in the Reclamation Plan. <br />Other details of overburden and topsoil re-distribution are discussed in Exhibit E: Reclamation <br />Plan. <br />All overburden and topsoil stockpiles will be seeded, with the rangeland mix, within a year of <br />being placed. Seeding will take place during times of higher seasonal precipitation. The proposed <br />reclamation seed mix is shown in the Reclamation Plan. <br />7. Water Handling <br />All water issues such as availability of water for this operation, stormwater, consumption rates, <br />dust control, etc. is presented in Exhibit G - Water Information. <br />Cugnini Pit, November 2009 D-13