2009-05-12_REVISION - C1981019 - Laserfiche WebLink

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olQ?vya's most recent submittal daes not provide the necessary details and commitments requested. In their cover letter and revised narrative, the operator indicates that they mould track sail replacement volumes, but not replacement depthlthickness, regarding planned variable thickness soil replaceinent? they refer to a near "profile description diagram" on amended page 2,45.4-46. The referenced diagram is a ge?e?alized cross-section of a hypothetical reclaimed ?vate?shed, from ndgeline to ndgeline, showing 4 to ? inch soil thickness on ridges and upper slopes, ? inch thickness to "a much as needed for topsail balance" an lower half of slopes, and 4 to " adj scent to the channel, In the arriended text, the diagram is described as "a visual representation of the general goal..." ? the cover letter, the operator indicates that "deviations from the spirit of the diagrani gill be discussed with the Division prior to cainpletion of topsail laydon actlvities in ? given reclamation Unit, .." A.rnended narrative regarding topsoil replacement refers to "average or variable replacement depth foXloing the general rule ofthin topsoil ?4-$}inches on ridge tops to gradually thicker topsoil moving down the slopes, . ," The Division does not consider the amended plan to be adequate, a it does riot provide the level of detail ar commitment necessary to demonstrate that topsail would be redistributed to achieve "an appraxirnate uniform, stable thickness consistent with approved pastmining land uses, contours, surface mater drainage systems and requirements of the vegetation proposed to be established" as required by yule 4.4?.?4??}?a}. The Division daes not interpret the regulation language to require replacement of a single, uniform thickness across the entirety of a reclaimed area, but daes interpret the language to require replacement of defined approximate uniform thickness within delineated portions of a reclaimed area. Far the post-20QS portions ofthe anginal permit area, the Division mould accept a variable replacement plan incorporating narrative and mapping commitnaeuts adequate to ensure replacement of ? significant acreage of at least t?va sail replacement zones, as follov?s: a "thin soil" zone, with a Q to 8 inch replacement range and a 4 inch minimum average thickness} and; a "thick sail" Zane, with an S to 1 ? inch replacement range and a 1 a Inch minlrXiunl average thlckness. For the youth Taylor reclamation unit, the Divisions would accept a variable replacement plain incorporating narrative and mapping commitments adequate to ensure replacement of a significant acreage of at least three sail replacement zones, as follows: a "thin soil" zone, with a ? to 8 inch replacement range and a 4 inch minimum average thickness;