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4-4b <br />• The project will not materially affect the surface hydrology. <br />The road across the valley floor represents an improvement to <br />the ranch access road. The improved road does not alter the <br />flow of water in East Salt Creek, nor dam or alter the flow across <br />the valley. Furthermore, the sediment pond has been designed <br />to catch runoff from the project; thus, water quality will be <br />maintained. The location of the pond near East Salt Creek has <br />the potential to return surface water to the ground water system. <br />4.1.4.1 Preliminary Identification of Alluvial Valley Floor <br />SEI has completed a preliminary identification of the alluvial <br />valley floors in the vicinity of the proposed operations. The <br />area of study covers the valley of East Salt Creek from a point <br />located approximately half a mile north of the confluence of <br />• the unnamed channel in McClane Canyon and East Salt Creek to a <br />point approximately half a mile below the mouth of Munger Canyon. <br />The study also includes side valleys on both sides of East Salt <br />Creek valley. <br />METEOD OF STUDY <br />The preliminary identification of alluvial valley floors was <br />performed in two phases: <br /> <br />