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52.05 APPLICATION FOR PERMIT FOR SIIRFACE OR DNDERGROUND MINING ACTIVITIES -- MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION PLANS. 2.05.4 Reclamation Plan. (2) (e) (iii) (Cont'd.) Containerized stock will be utilized in the planted mix. Stock will be planted in accord- ance with procedures outlined by the Colorado Nurserymen Association except that stock planted in rangeland areas will not be irri- gated but will be planted in spring when soil moisture is at its peak. (iv) h+ulching Techniques T+ao types of mulching techniques will be util- ized at the Orchard Valley Mine: hydraulic mulching (hydromulching) and Excelsior erosion control blanket. All accessible areas will be hydromulched with wood cellulose fiber at a rate of 1,500 pounds per acre and a tackifier at 90 pounds per acre. All slopes steeper than 1-1/2:1 will be covered with Excelsior Erosion Control Blanket, Type III, 4' X 180', "Curlex", manufactured by the American Excel- • sior Company, Denver, Colorado. This product will be installed to meet the manufacturer's specifications, with the following excep- tions: 1. Material shall be laid on Che slopes from top to bottom with 3" side overlap with adja- cent material. 2. Erosion control material shall be held in place by staples (8 gauge, minimum of 9" in length) . 3. Staples shall be placed on 3' centers ver- tically along edges and on 4' centers in the middle of each strip. Also, for each 20 line- ar feet (top to bottom) material will be sta- pled across in I' centers. In addition to hydromulching, straw mulch blown or hand distributed over seeded slopes, would be utilized at the Orchard Valley F+est Mine site. A revegetation netting and tacki- fier would be placed over some straw mulched slopes. • Revised 10/12/86 Revised 10/01/87 73