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• g. Flood Irrigability <br />The previously described reconnaissance inventory indicated that <br />flood irrigation has not historically been practiced in the Scullion <br />Gulch drainage. The alluvium found within the drainage is narrow <br />and greatly limited in extent. Water yield is low and very <br />sporadic. Water quality is alkaline. Soils are shallow and have <br />a sandy-silt texture. <br />The potential for developing agricultural activities in this basin <br />is very minimal. <br />5. WHITE RIVER <br />• The White River drainage flows east to west receiving ephemeral flow <br />from Red Wash and Scullion Gulch. Located southeast of the portal <br />sites, only the relocation of the county road and the alluvial well <br />field will be associated with the drainage. <br />a. Geomorphic Characteristics <br />The extent of alluvium associated with the White River is shown <br />on Map 102. Drilling conducted in conjunction with the installation <br />of alluvial wells indicated that the White River alluvium near the <br />proposed Deserado Mine contains a wide variety of grain sizes, <br />ranging from clay to gravel. The upper 15 feet of alluvium generally <br />consists of a fine silty and clayey material while the lower 22 feet <br />consists of a mixture of gravel, sand, silt, and clay {see Section <br />• II.C-Hydrology). This alluvium is underlain by impermeable bedrock. <br />4/81 II.D-18 <br />