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-42- However, Rule 2.05.3(b)(i)B and D require plans and data which document that existing structures meet the design requirements or performance standards of Rule 4. Such information has not been provided by the applicant for the main haul/access road. Further, the operator has proposed that the haul road be abandoned in its present condition upon cessation of mining and reclamation, but has not provided drainage and stability information to document the suitability of the road for the post-mining land use. The following stipulation is necessary: Stioulation No. A. WITHIN SIX MONTHS OF PERMIT ISSUANCE, THE PERMITTEE WILL SUBMIT TO THE DIVISION ALIGNMENT, PLAN UIEW AND CROSS-SECTION INFORMATION, AND DRAINAGE SPECIFICATIONS FOR THE h1AIN HAUL/ACCESS ROAD. FOR PORTIONS OF THE ROADWAY WHICH EXCEEU THE CUT SLOPE AND EMBANKMENT SLOPE GRADE RESTRICTIONS OF THE REGULATIONS, THE OPERATOR WILL PREPARE AND SUBMIT APPROPRIATE STABILITY ANALYSES. "WORST CASE" ANALYSES MAY BE SUBMITTED IF GEOTECHNICAL ANALYSES DEMONSTRATE THAT THE CUT SLOPE AND EMBANKMENT SLOPE SITUATIONS PURPORTED TO BE REPRESENTED BY THESE ANALYSES ARE ANALOGOUS. B. IF THE DIVISION DETERMINES THE ROAD TO BE UNSUITABLE FOR THE POST-MINING LAND USE, A PLAN FOR DECOMMISSIONING THE ROAD WILL BE SUBMITTED WITHIN ONE YEAR OF PERMIT ISSUANCE. The landowner has requested that the main haul/access road and the pit haul roads be retained for use after mining has ceased. Information required by the above stipulation will insure that retention of the haul/access road in its existing condition as a permanent structure is prudent. During the spring of 1983, significant slumping occurred along the north facing cuts of the Pit 4 haul road. The operator was required to stabilize the cuts (limited grading, seeding and mulching) and implement a monitoring plan for the purpose of evaluating the effectiveness of the stabilization measures. During the spring of 1984, sliding was reinitiated along the Pit haul road, as well as along access roads to Pit 1 and Pits 2 and 3. Due in large part to cutslope instability, the road drainage system requires a high amount of maintenance. The slide areas will be monitored throughout the permit term. The following Stipulation is necessary: Stipulation No. 12: A. WITHIN ONE MONTH OF PERMIT ISSUANCE, THE PERMITTEE WILL INCORPORATE THE PIT 4 HAUL ROAD CUT SLOPE MONITORING PLAN INTO THE APPLICATION. THE PLAN WILL BE EXTENDED TO INCLUDE THE PIT 1 AND PIT 2 AND 3 ACCESS ROAD SLIDE AREAS. THE PERMITTEE WILL ALSO COMMIT TO IMPLEMENTING APPROPRIATE CORRECTIVE MEASURES IF MONITORING INDICATES THAT THE SLOPES HAVE NOT BEEN SUFFICIENTLY STABILIZED PRIOR TO ABANDONMENT.