Laserfiche WebLink
Backflling arrd Frrading <br />All highwalls will be eliminated. Regraded spoil will be graded to slopes no steeper than three <br />horizontal to one vertical. Reconstructed stream gradients will approximate those of the <br />pre-mining streams, and stream channels will be restructured to complement regional stream <br />patterns. Contour furrows will be constructed to reduce erosion. Overall, Colowyo's reclamation <br />plan will serve to achieve contemporaneous reclamation and approximate original contour: <br />However; a waiver to Rule 4.141(i)(c) was granted the during the initial permitting process to <br />bacl£11 as contemporaneously as practical in lieu of the 180-day or four-spoil-ridges <br />requirement. (PAP, page 4.14-3). Three valley fills have been permitted for the disposal of excess <br />spoil. <br />Topsoil <br />Topsoil performance standards are found in Section 4.06 of the Permit_ The average thickness of . <br />each soil type to be removed (which varies widely} can be found in the legend of Map 6 oftlte <br />Permit. Eighteen inches of topsoil will be replaced on all graded sites except for approved <br />exceptions. One exception is the Section 1 I Pit; upon which 12 inches of topsoil was placed <br />(PAP, page 4.06.4). Anticipated exceptions aze for strip-seeding and woody plant management.. . <br />Revegetation. <br />Native and introduced forbs and grasses will be drill seeded or broadcast seeded (on steep <br />slopes). Shrubs and tree species will be seeded, planted as baze root or containerized stock, or <br />live planted_ Revegetatioa efforts will be moaitarecl to- deterraiae vegetative success as described <br />in Section 4.15 of the PAP. Chisel plowing and tenace.or contour furrows aze the preferred <br />methods of seed bed prepazation. Mulching is not in general use. <br />October 21, 2002 20 <br />