Laserfiche WebLink
• • • <br />Topsoil Overburden Stripping, Storage, and Recovering <br />• <br />Approximately 2 feet of topsoll covers the entire property. In <br />addition, up to 5 feet of additional clayey-sand soil covers the <br />aggregate resources in the Phase I and ii areas. Topsoil and <br />~ clayey-sand will be stripped and stored in separate piles along <br />the 100 foot non-mined areas adjacent to Nome Street and 132nd <br />Avenue. Since most of these stockpiles will be undisturbed for <br />periods in excess of 1 year, temporary revegetation will be under- <br />taken. Crested wheatgrass at 10 pounds pure live seed/acre will <br />be drilled 1/4 to 1/2 inch deep. The drill will have depth bands <br />and press wheels. Where drilling is not possible, the seed will <br />be broadcast at 20 pounds per acre. <br />~ In backfilling, first a sub-grade will be establised as much as <br />possible with sand reject materials; particularly below waterline <br />and 50 feet above waterline for a sand beach in the homesite <br />areas. Next the rough grade of the shoreline and sloping of the <br />~ homesites will be established. The clayey-sand soil will be plac- <br />ed above waterline along US 85 and the south property line, and <br />50 feet above the waterline toward either 132nd or Nome in the <br />homesite areas, in a 2 foot to 5 foot layer. This layer will be <br />~ ripped and scarified along the proposed contours to a depth of <br />12 to 18 inches in order to leave a rough surface for topsoil <br />placement. Finally, 8 to 12 inches of topsoil will be spread from <br />the 100 foot non-mined area as far as possible toward the shore- <br />~ line. It will be disced to prevent slipping and revegetated as <br />per the next section. <br />Revegetation <br />~ Revegetation will occur in all non-sand areas above water level, <br />including those areas along 132nd and Nome Street that weren't <br />mined. Revegetation will be carried out in such a manner as to <br />establish a diverse, effective, and long lasting vegetative cover <br />~ that is capable of self generation without continued dependence <br />on intensive irrigation or fertilizers. The plan is designed to <br />create a natural vegetation cover, even along the front of the <br />homesite areas where irrigated lawn may eventually replace this <br />~ initial revegetation. Seed will be drilled whereever possible, <br />but where drilling is not possible the seed will be broadcast <br />at double the drilling rate. The revegetation plan provides for <br />the greatest probability of success past the initial revegetation. <br />• A weed control program is included in the revegetation program. <br />• <br />• <br />