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Reclamation activities implemented in 1983 were primarily <br /> devoted to revegetation maintenance procedures on lands which <br /> have previously received Phase II or III reclamation efforts. <br /> Phase I reclamation activities were initiated on 1.0 acre of <br /> affected land within permit boundaries at the American Tunnel <br /> site. One acre on inactive Tail Pond No. 1 was transferred <br /> from Phase I to Phase II, and one acre on inactive Tail Pond <br /> No. 2 was transferred from Phase II to Phase III . <br /> Revegetation Species - Plant materials used in reclamation <br /> plans effected in 1983 are presented in Table 1 . Due to the <br /> variability of micro habitats on the disturbance sites at the <br /> Silverton operation, a number of diverse revegetation seed mixes <br /> are used such that all possible niches are exploited. The loca- <br /> tion and amount of plant materials used during the year are pre- <br /> sented below. <br /> 1. Location - Tail Pond No. 2 (top) <br /> Mix D - 75 lbs/acre on 2 acres <br /> Planting date - June 23, 1983 <br /> 2. Location - Tail Pond No. 2 (outslope) <br /> Mix C - 100 lbs/acre on 2 acres <br /> Planting date - June 24, 1983 <br /> 3. Location - Animas River Ponds <br /> Mix B - 75 lbs/acre on 3 acres <br /> Planting date - October 10, 1983 <br /> 4. Location - Tail Pond No. 2 (outslope) <br /> Mix E - 50 lbs/acre on 1 acre <br /> Planting date - October 12, 1983 <br /> Soil Amendments - Soil amendments employed in the reclamation <br /> procedures developed for disturbed lands at the Silverton site in- <br /> clude: lime, topsoil , inorganic fertilizers, wood fiber, and straw <br /> mulch. These amendments are used in different combinations and at <br /> varying application rates as necessary to optimize the potential for <br /> revegetation success on the variant disturbance sites. The type and <br /> amount of soil amendments used in 1983 are presented below: <br /> 1. Location - Tail Pond No. 2 <br /> Fertilizer - 20-20-9 - 9,000 lbs on 15 acres <br /> 34-0-0 - 3,000 lbs on 15 acres <br /> Mulch - wood fiber - 14,000 on 7 acres <br /> straw mulch - 10,000 lbs on 5 acres <br /> 2. Location - Animas River Ponds <br /> Topsoil - 500-700 cubic yards on 2 acre <br /> Fertilizer - 20-20-9 - 1 ,200 lbs on 2 acres <br /> 34-0-0 - 400 lbs on 2 acres <br /> Mulch - wood fiber - 4,000 lbs on 2 acres <br />