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2.06.8 -ALLUVIAL VALLEY FLOORS <br />Tlie valley floor of i lay Gulch izas been deterrriirtecl tD be an alluvial floor by <br />Fred M. Johnson, Certified Professional Geologist No. 2718. This has been verified <br />in discussions with the Colorado Geological Survey. Only the access roadway <br />leading to the mine bench is located within the alluvial valley -floor. This roadway is <br />an access for both the mine and apre-existing roadway for access to cattle grazing <br />on the surface (Huntington Property). Total roadway area within the alluvial valley <br />floor is 0.92 acres. <br />Measures have been taken, as described previously, to protect the alluvial <br />valley floor from adverse effects of mining. Water from up-slope areas surrounding <br />the mine bench are -diverted around-the surface facilities and stockpiles to the day <br />Gulch drainage. Sediment ponds collect runoff from the mine plant area. Water <br />monitoring will insure that protection of the alluvial valley floor is maintained. <br />It is not an accepted regional practice to irrigate alluvial bodies of extent <br />comparable to those which occur along Pine Gulch when there is no water available <br />for irrigation. Fred M. Johnson, C.P.G., Clifford M. Schmid, P.L.S., and Dan <br />Mathews, Reclamation Specialist of the M.L.R.D., determined and mutually agreed, <br />on May 30, 1990, that there was not sufficient alluvial groundwater within the <br />permit area of Pine Gulch,. to enhance the productivity of agriculturally useful <br />vegetation. It was further agreed that Pine Gulch within the permit area was neither <br />an AVF nor a renewable resource. <br />The confluence of Pine Gulch -with .Hay mulch .i~_axi alluvial .valley .floor- (AZT.F~, <br />but irrigated by diversion ditches originating at the La Plata River. The ditch right <br />owners do not depend on flood irrigation or sub-irrigated. The S.C.S. (Cindy <br />f Dvergsten~-feels that any sub-irrigation- at ~e-ec~ fluene~e-~vt~uld be l'rc~~n the-Hay <br />Gulch high water table. Because of support planned for Pine Gulch within the <br />permit area and insufficient alluvial groundwater to enhance productivity of <br />agriculturally useful vegetation, there will be no mining related irrtpacts to the <br />quality or quantity of water from Pine Gulch. <br />The alluvial deposits along Hay Gulch are shown on the Regional Geology Map <br />(King I-fl04) -includ`ed in this permit application. <br />National King Coal, LLC King I Mine <br />Section.- 2r06~8_ <br />Page 1 February, 2007 <br />