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<br />_jn_ <br />The loadout is roughly 2 miles from theColorado River. A11 tcnoff, which only <br />results from direct precipitation over••the 5.6 acre disturbance, will he con- <br />tained at the site, and. no runoff will be discharged from the site. Due to the <br />Limited surface disturbance, Ghe porential impact of the loadout on the Colorado <br />River alluvial valley floor is insignificant. <br />.alluvial Talley Floor Findings With Regard to Farming <br />The only aspect of the operation which will physically impact the area of an <br />existing alluvial valley floor is the haul road across East Salt Creek. This <br />road was a ranch road prior to the development of the mine. The road has been <br />widened to improve access to the mining operation. No furrtier disturbances <br />to the valley floor are planned with regard to this road. <br />The total area of alluvial valley floor which has been affected by the road <br />is 1.6 acres. The total area of alluvial va/1ey floor within a ; mile radius <br />of the confluence of lTUnger Canyon and East Salt Creek is 240 acres. The <br />disturbance affects approximately .7; of the alluvial valley floor within a <br />-~ :Wile radius of the confluence. Since this area is a small percentage of <br />the total AvF and since this area was previously disturbed, the effects on <br />the AVF of East Salt Creek are negligible. <br />There is an area of irrigated agriculture in the East Salt Creek valley. This <br />area is located directly upstream of the haul road to the Munger Canyon Mine <br />(as is indicated in Figure 4.1-2of the permit applicati.onl. The lfunger Canyon <br />• operation :/i11 not affect the gvantitg or quality of water tributary to this <br />area and, taus, wit _' not effect the producti vz ty~of this AVF. <br />With respect co Stove and Buniqer Canyons, the ::maned tributary to East Salt <br />CreeY. and eig Sait :Dash, there is no ?otential for the interruption, discontin- <br />uance, or preclusion Of fdYTfllncJon an ailuviai valley floor. Nn underground <br />development will pass Seneath an alluvial valley flop*, nor will any surface <br />disturbance occur in any of these areas. <br />Therefore, pursuant to Rule 2.06,d(5)(i), the Division finds that the proposed <br />surface coal mining operations will not interrupt, discontinue, or preclude <br />farming on an aiZuvial valley floor. <br />alluvial Ja11ey Floor Findings garb 3egard to 19aterial Damage to :4a ter luality <br />and Quanta*_y <br />As .~rentioned pre viousZu, the Nunaer 'fine will be developed intc portions of <br />_`our drainage basins. The surface disturbance will occur only :+i rain .NUn ter <br />Canyon and a small portion of cast Sait Creek. Cbvieusly, t:.e crea~est potential <br />'or diminution of water cuality and quantit? :/ould be attributable to the area <br />of greatest surface disturbance. <br />Tye surface disturbance in Munger Car.uon :/i1i De comprised of ~,e ~:Sne bench, ,.^e <br />waste disposal ie and .ia u1 rca ds leading to tie portal area. These distur- <br />bances wi L ar_`_ct approximately ?5 acres. <br />• <br />