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not replace mature trees. Undesirable vegetation should meet the condition described above (B) and noxious weeds must benon-existent. B. Re-contouring: The unused disturbed azeas will be re-contoured to blend as nearlypossible with the natural topography. Final grading ofback-filled and.cut slopes will be done to prevent erosion and encourage establishment of vegetation. C. Erosion Control: All erosion associated with the operation will be stabilized and controlled. Erosion on a site will be considered controlled when water natttrally infiltrates into the soil; gullying, headcutting or slumping is not observed; rills are less than 3 inches deep and deener or excessive rilling is not observed. If it is determined by the Authorized Officer that the above reclamation standards aze not being met, the operator will be required to submit a plan to correct the problem. Approval of the plan may require special reclamation practices such as mulching, the method and time ofplanting, the use of different plant species, soil analysis to determine the need for fertilizer, fertilizing, seed-bed preparation, contour furrowing, watering, terracing, water barring, and the replacement of topsoil. Topsoil will be stripped to aminimum depth of 6 inches Topsoil storage piles will be no deeper than 3 to 4 feet. If topsoil is less than 6 inches, the top 6 inches of surface material will be stripped and piled as described. The topsoil and or surface piles will be seeded withirt 24 hours of stockpiling. The operator will implement measures prior to seeding the disturbed azeas, to enhance the productivity of the growth medium (re-distributed cut and fill soils) and the establishment of Uie seeded species. The type of treatment will be included in the reclamation report to be submitted to the Authorized Officer. This requirement can be exempted if a soil test is conducted and the soil has 'sufficient nutrients and organic matter capable of supporting the seeded species. The cut and fill slopes will be protected against riding and erosion with measures such as water bars, lateral furrows; or other measures approved by the Authorized Officer. Weed &ee straw bales or a fabric slit fence will be used at the toe of the fill slopes. Areas being reclaimed will be fenced to exclude livestock until the seeded species have become established. The type of fencing will be approved by the authorized officer. The operator will submit an annual reclamation report by December 31 to the Authorized Officer. The report will document compliance with the above requirement far all aspects of the reclamation objectives. The report will specify if the reclamation objectives are likelyto be achieved and actions needed to meet those objectives. -