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Ditch (Table 3.3-1 and Figure 5.1-1). Several other ditches along <br />this reach of the Colorado River supply water to various properties • <br />on both sides of the river (Table 3.3-1 and Figures 3.3-5 and 5.1- <br />1) . <br />5.1.3.4 Land Use <br />Present land use includes grazing, haylands, residential and <br />commercial developments, and transportation (highways and rail- <br />roads). Refer to Section 3.1 for more detail. <br />5.1.3.5 Water Yield <br />Obviously, the Colorado River is one of the major rivers in the <br />western United States and supplies many states with water for <br />various purposes. A discussion of its monthly and annual flow <br />rates can be found in Section 3.3.7.1. <br />5.1.3.6 Soils . <br />A soil survey of land along the southern shore of the Colorado <br />River, generally along the northern portion of the permit area, <br />identified two soil types: a Heldt silty clay and a Nihil stony <br />loam. These soils occur in the area of the planned surface <br />facilities. Refer to Section 3.5 for more detailed soils discus- <br />sion. <br />5.1.3.7 Subirrigation <br />Subirrigation of natural vegetation adjacent to the Colorado and <br />along tributaries to the Colorado is common in this area. On the <br />terraces, however, subirrigation does not appear to play a major <br />role, except in a few areas which are downgradient of flood <br />irrigated land in areas of significant groundwater underfloor. <br />Areas of probable subirrigation in the facilities area is discussed <br />in more detail in Section 5.2. These areas of subirrigation were • <br />NCEC - Coal Ridge #1 5-4 ABC/1145/900301 <br />