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bottom; three to four feet is more desirable. It is apparent that some growth can be <br /> achieved as evidenced by old piles on the currently mined areas. It is our <br /> understanding that the overburden is a clay loam to sandy clay loam in texture. <br /> The operator proposes a series of soil tests be performed to determine if there are <br /> any adverse characteristics present in the materials and to compare these materials <br /> with the topsoil. In this way a determination can be made as to what type of <br /> overburden material is most favorable and if special treatments need to be applied <br /> to correct any especially adverse characteristics. With this information, a more <br /> precise plan for placement of growth media can be designed. This need is also <br /> reflected in the diverse growth patterns of the plant species which invade the <br /> various types of soil and overburden piles. (See Exhibit J, Vegetation, for more <br /> information on this aspect.) Topsoil will be replaced on the slopes as soon as the <br /> overburden has been graded so that erosion of the overburden material will be <br /> minimized. The soils are expected to be less erosive. The topsoil will be spread on <br /> slopes to a depth of 8 inches to 10 inches. Excess topsoil, if any, will be placed in <br /> pit bottom areas. As backfilling occurs and overburden and soils are added, all <br /> slopes will be graded at 4 to 1 or less. It should be noted that the mine appears to <br /> seed itself. There are several areas that were mined ten plus years ago g with <br /> clay and interburden stockpiles that have sufficient stands of grass on them with <br /> no seeding. <br /> It is expected that backfilling, topsoiling and final grading will be accomplished in <br /> the first year after mining is complete; however, that may not always be possible. <br /> 19 Revised October 2017 <br />