2017-11-14_REVISION - M1977219 - Laserfiche WebLink

Home Browse Search

EXHIBIT E RECLAMATION PLAN (CONT) The current Reclamation Plan for Area A, calls for the base of the clay bed to be graded and any side slopes to be graded 3h to lv by cut/fill sloping from the original surface to the mine floor. This applies to all 3 layers of material and required blasting of the rock face to make it 3 : 1 . That changes in this amendment, so as to leave the solid sandstone layer with a near vertical face and only slope the unconsolidated layers above and below it at 3h to lv. As noted in the Mining Plan, the sandstone face will not exceed 25 feet high without a 20 foot wide bench being constructed on the face . The excess overburden, unusable clay and sandstone process- ing waste will be used to build the slopes and some of the overburden will be used to place at least 6 inches of cover on any exposed bedrock as root zone . As mining progresses on the working face, the perimeter slopes on the clay seam and unconsolidated material will be graded at, or flatter than 3h to 1v as discussed in the Mining Plan. This will ensure that when mining ceases, only a minor amount of work will have to be done to finish reclamation in the disturbed area. The salvaged topsoil/growth medium will then be placed on the seedbed and seeded using the approved seed mix listed below. No trees or shrubs will be planted as we expect natural invasion of those species to occur and no trees were included in the approved revegetation plan. SEED MIX (1990) SPECIES VARIETY %MIX LBS (PLS) Fairway Wheatgrass Ephraim 60 3 .60 Pubescent Wheatgrass Luna 35 4.90 Yellow Sweetclover 5 0.35 Total 100 8 . 85 Seeding rates are given in pounds of Pure Live (PLS)PLS purity x germination Roads will be left across the mine to provide access for planting crews, and for the supervision and inspection of the completed reclamation. These roads will remain when mining ends to ensure the owner ' s access to the site. Final grading on the roads will be done before any Area is closed. All refuse will be hauled away or disposed of in a manner that will control unsightliness and protect the drainage system from pollution. There are no acid-forming or toxic materials involved with the operation. Final revegetation will be done by the end of the second fall after resoiling is completed. The Area will be monitored for success of revegetation until accepted by the Division for release . If revegetation failures occur prior to release, an analysis of the site will be made and the area will be revege- tated again as necessary. The reclamation timetable shows the types and amount of land in each Area when reclamation is complete . Approximately 22 . 3% 9 (revised 11/13/17)