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<br />Section 816.22 (f) Continued. <br />required under Section 816.46. diversion ditches and sedimentation <br />ponds will be constructed prior to any disturbance of the mining <br />areas. <br />Rerr'Tipple"Area <br />The tipple area from which topsoil will be removed constitutes an <br />area of 0.57 acres, and will be involved in retopsoiling the conti- <br />guous 6.77 acres. Due to the acreage involved, all soil stripping <br />and reapplication will be contemporaneous in one operation. <br />Marr"Mine"Area <br />All topsoil to be removed from the Marr Mine Area has been removed <br />prior to submittal of this permit. <br />• (2) The surface soil layer shall be redlstributed at a time when the <br />physical and chemical properties of topsoil can be protected and erosion <br />can be minimized; and <br />Rerr"N6rth"Area <br />Redistribution of the soil will be done, whenever possible, at a <br />time when the physical and chemical properties of the soil can be <br />protected from alteration while minimizing the potential for era- <br />sion. When practicable; redistribution will take place during the <br />early summer and fall when the soil moisture levels help reduce the <br />emission of particulate dust. Also, handling soil when it is <br />somewhat moist results in the formation of a seal as the moisture <br />in the uppermost layer evaporates, further reducing the potential <br />for air pollution. Regrading soils under wet soil conditions will <br />be avoided whenever possible to prevent severe compactlon, espe- <br />cially in Pit ~/1 and Pit IF2 where clay contents are high. Frost <br />action and wetting and drying will loosen these reapplied surface <br />816-18 <br />