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Map Unit Description (Brief, Generated)-Weld County, Colorado, Southern Part <br />Journey Ventures Pit <br />Component: Aquic Haplustolls (1 %) <br />Generated brief soil descriptions are created for major components. The Aquic <br />Haplustolls soil is a minor component. <br />Map Unit: 3-Aquolls and Aquents, gravelly substratum <br />Component: Aquolls (55%) <br />The Aquolls component makes up 55 percent of the map unit. Slopes are 0 to 3 <br />percent. This component is on swales, streams, flood plains. The parent material <br />consists of recent alluvium. Depth to a root restrictive layer is greater than 60 <br />inches. The natural drainage class is poorly drained. Water movement in the most <br />restrictive layer is moderately high. Available water to a depth of 60 inches is <br />moderate. Shrink-swell potential is low. This soil is frequently flooded. It is not <br />ponded. A seasonal zone of water saturation is at 27 inches during March, April, <br />May, June, July. Organic matter content in the surface horizon is about 2 percent. <br />This component is in the R067BY035CO Salt Meadow ecological site. Nonirrigated <br />land capability classification is 6w. This soil meets hydric criteria. <br />Component: Aquents, gravelly substratum (30%) <br />The Aquents, gravelly substratum component makes up 30 percent of the map unit. <br />Slopes are 0 to 3 percent. This component is on stream terraces. The parent <br />material consists of recent alluvium. Depth to a root restrictive layer is greater than <br />60 inches. The natural drainage class is poorly drained. Water movement in the <br />most restrictive layer is moderately high. Available water to a depth of 60 inches is <br />moderate. Shrink-swell potential is low. This soil is frequently flooded. It is not <br />ponded. A seasonal zone of water saturation is at 15 inches during March, April, <br />May, June, July, August, September. Organic matter content in the surface horizon <br />is about 1 percent. This component is in the R067BY035CO Salt Meadow <br />ecological site. Nonirrigated land capability classification is 6w. Irrigated land <br />capability classification is 6w. This soil meets hydric criteria. The calcium carbonate <br />equivalent within 40 inches, typically, does not exceed 5 percent. The soil has a <br />very slightly saline horizon within 30 inches of the soil surface. <br />Map Unit: 68-Ustic Torriorthents, moderately steep <br />Component: Ustic Torriorthents (85%) <br />The Ustic Torriorthents component makes up 85 percent of the map unit. Slopes <br />are 9 to 15 percent. This component is on escarpments, breaks. The parent material <br />consists of gravelly alluvium. Depth to a root restrictive layer is greater than 60 <br />inches. The natural drainage class is excessively drained. Water movement in the <br />most restrictive layer is high. Available water to a depth of 60 inches is very low. <br />Shrink-swell potential is low. This soil is not flooded. It is not ponded. There is no <br />zone of water saturation within a depth of 72 inches. Organic matter content in the <br />surface horizon is about 1 percent. Nonirrigated land capability classification is 7s. <br />This soil does not meet hydric criteria. The calcium carbonate equivalent within 40 <br />inches, typically, does not exceed 3 percent. <br />USDA Natural Resources Web Soil Survey 2.0 10/252008 <br />Conservation Service National Cooperative Soil Survey Page 2 of 3 <br />73