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Topsoil Placement: The topsoil will be end-dumped on the crest of the slope and <br /> graded by dozers. Slopes will be graded to avoid concentrated water flow and <br /> subsequent erosion. Slopes will be moderately roughened on the last pass of the <br /> heavy equipment using a track vehicle running up and down the slope. Roughing <br /> the slope will aid with seed and mulch adhesion to the slope. <br /> Seeding: Cotter will broadcast seed followed by hydromulching. Hydroseeding is <br /> not recommended as it is not typically successful in our and climate. Drill <br /> seeding is also not recommended due to the slope steepness. <br /> Mulching: For 2H:1 V and steeper slopes, mulch is necessary to keep the seed and <br /> topsoil in place. Mulch can also provide shade to the seedlings and help the soil to <br /> retain moisture. Cotter will hydromulch with addition of a tackifier. Tackifier <br /> (Ecology Control MBinder) is a botanical glue made from Plantago insularis that <br /> can also be applied to the slope to prevent erosion. The hydromulch and tackifier <br /> should effectively stabilize the surface of the slope. <br /> Soil Amendments: Soil amendments may be required to improve the <br /> performance of the vegetation. This could include composted biosolids or <br /> manufactured amendments such as <br /> Biosol. <br /> Comment No. 7 - Pursuant to Rule 6.4.5(2)(e), provide a plan or schedule indicating how and <br /> when reclamation will be implemented. The plan shall address reclamation of the alluvial fill <br /> excavation area as well as reclamation of the WRPs. Such plan or schedule shall not be tied to <br /> any specific date but shall be tied to implementation or completion of different stages of the <br /> operation. The plan or schedule shall include: <br /> a. An estimate of the periods of time which will be required for the various stages or <br /> phases of reclamation. <br /> b. A description of the size and location of each area to be reclaimed during each phase. <br /> c. An outline of the sequence in which each stage or phase of reclamation will be <br /> carried out. <br /> Response: Attachment A contains a proposed schedule for implementing the alluvial fill <br /> reclamation project. The attached schedule contains the various construction phases, <br /> durations, and sequence of this project. This reclamation project will include the <br /> following primary phases: <br /> • Widen Road to Minnesota Adit <br /> • Site Cleanup <br /> • Install Storm water Management Structures and Site Preparation <br /> • Excavation of Alluvial Fill <br /> • Place Backfill <br /> • Place Topsoil <br /> 2016-11-07 Response to TR23 Adequacy Review 3 <br />