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The hydrologic balance of the mine plan area is to be maintained by a series of .fourteen sediment ponds, various drainage ditches and discharge structures. To date, seven sediment ponds have been constructed. This runoff containment system appears to be adequately designed and constructed in accordance with 30 CFR 816.46 (e through u) and Colorado law, 34-33-120, Rule 4.05. Sediment Ponds A and D exceed 20 acre feet in storage capacity. The emergency spillway for these twoponds were designed and constructed for 100-year, 24-hour events. Many ponds utilize baffle structures to ensure adequate detention time. Drainage ditches B-l, B-2, I-2, I-3, and N-2 were designed for 100-year, 24-hour events. Certain steeper sections of drainage ditches I-2, N-2 and B-2 are designed with riprap liners to minimize the erosive effects of flowing water. Kerr Coal Company water rights and water augmentation planning are detailed in Volume 10 Exhibit 25. The Augmentation Plan lists a total water consumption of 69.46 acre feet per year. The figure includes 66.9 acre feet for pond dead storage and 2.56 acre feet consumed for dust suppression, other industrial useage and sanitary needs. Kerr Coal claims the 315.2 acre feet of water rights for potential mitigation of adverse impacts to surrounding water users. Based upon the data, Kerr Coal has adequate water rights to mitigate adverse impacts to neighboring water users. Rangeland will be re-established at the Marr Mine and loadout. The reclamation plan currently calls for backfilling the southernmost 720 Pit with 1.5 million compacted cubic yards from the temporary overburden pile and with material from Pits 1 and 2. Pits 1 and 2 would be filled by material from Pit 3. The overburden from the 720 Pit will be temporarily stockpiled on the southern end of the property and trucked three miles north to Pit 3. All structures will be dismantled and removed from the site. Topsoil and subsoil salvage and replacement vary among pits and soil types. Information on soil removal and replacement is on pages 816-6 to 816-28 of the PA. Tables 57aa - Total Soil Averages and Depths by Mine Plan Years and 59a - Soil Redistribution Plan contain information on soil depths and v lumes to be removed and replaced throughout the permit term. soils in the 77{~ Pit were salvaged prior to promulgation of the Colorado Surface Coal Mining Reclamation Act, and six inches of material, regardless of suitability, were salvaged. In general, six inches of topsoil were salvaged fr Pit 1 and and equal amount is proposed to be salvaged from Pit 2. Varying amounts of subsoil and topsoil, totaling roughly three feet (3') will be salvaged from Pit 3. Some subsoil material from Pit 3 is proposed to be spread on PIts 1 and 2, resulting in replacement depths on Pit 3 of more than 2 1/2'. Topsoil at the tipple was not extensively salvaged. Some material has been stockpiled in a berm around the property and ham'' ^`^^'~'~'^~' '~ a berm arnypd_the-proper-ty-and. will be respread across the regraded surface. The revegetation plan calls for drill seeding an annual mulch of russel oats in the spring or Elbom winter rye in the fall. This will be followed in the subsequent fall or spring with separate seeding of grasses and fortis. The next spring, containerized shrubs will be transplanted on the property. Seeding will be preceded y fertilization at the tipple of 20011/acres nitrogen, 80#/acre phosphorus and adequate organic material to equal a supplement of 100-120 pounds of nitrogen.