Laserfiche WebLink
for those old mining areas except to spread remai ing top- <br />soil as far as it will go. The areas of the North Central <br />• Phase which will be redisturbed are indicated on Plate 4. <br />These areas will be staked out on the site. <br />(5) After operations are complete in the North Central <br />Phase, mining will proceed in other phases as indi ated in <br />Table 1. In order to properly manage water resourc s within <br />the affected land, the South Central Phase wil be the <br />second area mined. Topsoil, which covers the entire South <br />Central Phase, will be removed and stockpiled as i dicated <br />in Exhibit C, Plate 4. Two small areas of conifers will <br />also be felled, cut and sold as fire wood. Wil ows and <br />other non-usable vegetation will be dozed into a ile and <br />burned. An impoundment will be constructed in this area as <br />indicated in Plate 4 for water management purpos s. The <br />pond will be constructed in a backfilled area and will be <br />deep to assure no breech will occur. No discharge from this <br />impoundment to surface waters will occur. <br />(6) All materials beneath the topsoil are pot ntially <br />ore-bearing, so there will be no over-burden stoc oiling. <br />'Phe mineral bearing material will be excavated with a back- <br />hoe, a drag line or a dozer/ripper tractor. The epth of <br />each pit will be determined by the depth of bedroc Over <br />the project site the depth to bedrock varies Erom 0 to 60 <br />Eeet. Panhandle Drilling intends to excavate to be rock in <br />all areas. The slope of the working face will vary from 50 <br />• to 100 percent. The expected size of the working pi is 200 <br />Eeet x 200 feet. I <br />(7) The mineral bearing material will be loaded o to dump <br />trucks and hauled to the processing plant. It is a timated <br />that a maximum of 30,000 cubic yards of ore would b stock- <br />piled at any one time, and it would be 250 feet x 50 feet <br />and 20 feet in height. <br />(8) Once the initial material is removed from successively <br />cuts, backEilling into the same cut can commenc Over- <br />sized material, consisting of boulders and larger ravels, <br />will be the Eirst material to be backfilled into he pit. <br />Backfilled materials will be uniformly distribute in the <br />cut. Material swell above the original ground surEa e of up <br />to 608 is expected. <br />Processing <br />A schematic of the processing site is presented in F'gure 1. <br />(1) Production rates at the processing plant will ~egin at <br />2,000 to 3,000 yards per day and increase to up t 10,000 <br />yards per day as the mining rate increases. ~ <br />(2) As described above, a plant feed stockpilelwill be <br />maintained near the processing plant. <br />8 <br />