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Attachment 6 <br /> Stets Necessary tc Abate Vic" atiorl (Remedial Action) <br /> 1 . Repair/reconstruct all road ditch segments as necessary to comply with <br /> approved plan , including installation of riprao checks . As a temporary <br /> measure , 18 inch high berms may be substituted for ditches where solid <br /> bedrock precludes ditch excavation or where natural erosion of upslope <br /> material prevents maintenance of an inside ditch ( i .e. Road F, below <br /> Culvert F-1 ) . Berms shall be used co prevent uncontrolled drainage over <br /> the outslope , and shall be tied into dips or water bars as necessary to <br /> direct flow to the inside of the roadway to insure that drainage is <br /> discharged at properly stabilized , designed ditch relief drains or <br /> culvert outfalls . Berms shall not be used where snow removal would push <br /> them over the outslope . <br /> 2. Measures shall be taken to insure that drainage from Road C is not <br /> diverted down the pilot road. Water bars shall be installed along the <br /> pilot road at a 100 foot spacing, draining to the outside . <br /> 3. Install 1 foot high water bars at a minimum 100 foot spacing within all <br /> road segments where rill erosion on road surface or fill slope was noted <br /> in Attachment A. The water bars shall be constructed to drain toward the <br /> inside ditch. <br /> 4. The Mine 2 bench should be regraded or the bean at the terminus of <br /> Road DA should be enlarged to prevent any drainage from the mine bench <br /> from entering the road drainage ditch . <br /> 5. Install straw bale barriers or silt fencing in flat areas below the <br /> Road B fill where road drainage has carried sediment offsite. Specific <br /> areas of concern include uncontrolled runoff at Road D, Sta. 0-00 and the <br /> vicinity of Culvert B-2. Also, a series of straw bale check structures <br /> should be staked in place in the flow channel between the B-3 Culvert <br /> outlet and the point where the channel enters the South Fork of Dutch <br /> Creek. A water bar should be constructed in the vicinity of Road D, <br /> Sta. 0+00 to divert road drainage into the ditch rather than over the <br /> fill . <br /> 6. Construct water bars to direct drainage off the road to the outside at <br /> 100 foot spacing along the light use road which connects the Mine 5 <br /> portal area with the mine fan adjacent to the AML project site . <br />