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tk <br />• Section 760.11(b) Continued. <br />coal processing waste be used for embankment construction. All fill <br />material will be selected to exclude sod, large roots, and frozen <br />material. Placing and spreading of fill material will begin at the <br />lowest point of the foundation. All sedimentation ponds will be <br />inspected during construction and, upon completion, will be certified <br />by a Registered Professional Engineer. <br />At present, no modifications are planned for the existing <br />sedimentation ponds. Any modifications proposed in the future will be <br />submitted to the DMG for approval, and modifications will not be <br />initiated until plans are approved, except where emergency <br />modifications may become necessary to protect public health or safety, <br />or to prevent damage to the environment. All modification plans will <br />be prepared and certified by a Registered Professional Engineer. <br />All ponds will be examined periodically for structural weakness, <br />• erosion, or other hazardous conditions. Inspection reports and plans <br />for any necessary repairs or maintenance-related modifications will be <br />submitted to the DMG. Maintenance will include mowing and cutting of <br />excess vegetative growth to facilitate inspection and repair; keeping <br />ditches, culverts, and spillways free of debris; and regular removal <br />of combustible material other than mulch and other material required <br />for erosion control and surface stability. Sediment will be removed <br />from all sedimentation ponds when the total sediment volume <br />accumulates to 60 percent of the design sediment storage volume. <br />Accumulated sediment will be removed and placed in existing topsoil or <br />subsoil stockpiles, provided such sediment meets appropriate topsoil <br />or subsoil suitability criteria. <br />Sedimentation Ponds P., b, D, and E have been approved (TR-19) by the <br />DMG as permanent impoundments to support postmining land uses. <br />All other remaining sedimentation ponds will be completely removed and <br />associated disturbance areas reclaimed. Pond removal and reclamation <br />will occur after the associated disturbed area(s) has been restored, <br />• vegetation requirements met, and the quality of runoff from reclaimed <br />disturbance areas is similar to the premining quality of the receiving <br />y6A 38 780-3 Revised April 2004 <br />M~ 31 <br />