Laserfiche WebLink
Exhibit I p~ 5 <br />C,j - Casc~,jo very ~ravellY sandy loarr,_1 to 50 percent slopes <br />This is a deep, somewhat excessively to excessively drained soil <br />on terrace edges and ridges. It formed in gravelly calcareous allu- <br />vium. Slopes are nearly level to steep. The average annual preci- <br />pitation is about 12 inches, averap~e annual air temperature is about <br />52 degrees F., and average frost-free season is about 160 days. <br />Typically, the surface layer is very dark grayish brown gravelly <br />sandy loam about 3 inches thick. The subsurface is dark grayish <br />brown gravelly sandy loam about 3 inches thick. The underlying <br />layers to 60 inches grade from white to light yellowish brown very <br />gravelly loarrp~ sand. The soil is calcareous throughout with a zone <br />of high lime content between 6 and 21 inches. The surface layer is <br />l <br />thicker and the zone of high lime content is deeper an the nearly <br />level areas, <br />About 2$ percent of the mapping unit includes the deep loam profiles <br />of the Kim series, which occur in low areas, N.iduay clay loam, 3 to <br />1$~, and shallow soils over interbedded sandstone and shale on the <br />steep side slopes. <br />Permeability of the Casca~o soil is rapid. The available water hold- <br />ing capacity is low. Gullying common slang steeper breaks. <br />Native vegetation on the nearly level areas is mostly mid and short <br />grasses. Pinyon and juniper trees are predominant on the steeper <br />slopes. <br />The steep elope of this soil is the most limiting feature that must <br />be considered When planning construction. These sand and gravelly <br />