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1992), and moisture. Observations were recorded on the attached USACE approved data <br />sheets. <br />PROJECT DESCRIPTION <br />The proposed Arends, Reinoehl, and Archuleta project will extract aggregate materials <br />from alluvial deposits within the site employing dry mining techniques. The post-mining <br />site will be reclaimed in accordance with the reclamation plan approved by the Colorado <br />Division of Reclamation, Mining, and Safety. <br />SITE DESCRIPTION <br />The most significant topographic feature adjacent to the project area is the South Platte <br />River. The average elevation of the site is 4990 feet and the proposed development site <br />slopes very gently west toward the river. An irrigation ditch that collects tailwater flows <br />from southwest to northeast along the west boundary of the Arends parcel. <br />According to the Soil Survey of Adams County, Colorado (1974), three different soil <br />map units are located within the site. The map units are in bands trending southwest to <br />northeast that parallel the South Platte River channel. The soil units include Nunn loam <br />(0 to 1% slopes and 1 to 3% slopes), Dacono loam (0 to 1% slopes), and terrace <br />escarpments. <br />The potential wetlands investigated were located within the terrace escarpment map unit. <br />Terrace escarpments occur as breaks or steep sided slopes adjacent to the channels of <br />present or former streams. This soil unit consists of alluvium of variable materials and is <br />very shallow over gravel and sand. These materials have a loamy sand or sandy loam <br />surface layer. In many areas this layer is 5 to 20 percent gravel. Terrace escarpments are <br />not listed as hydric by the U. S. Army Corps of Engineers (USACE, 1987). <br />Ready Mixed Concrete - Arends, Reinoehl, and Archuleta Site Page 2 <br />Wetland Delineation