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I I I I I I I I I I I I I I I I I I TOWAOC MUNICIPAL PROJECT FEASIBILITY REPORT 1.0 INTRODUCTION AND GENERAL INFORMATION 1.1 General The Towaoc Municipal Project consists in part of the design and construction of a water supply pipeline of approximately 20 miles in length to serve the Town of Towaoc on the Ute Mountain Ute Reservation in southwestern Co1oratio. In addi ti on, improvements are to be made to the water di st..; buti on system within Towaoc. Tl1e general location of the project is shown in Figure 1. The pine1ine will convey water by gravity from the Cortez water treatment plant about four miles northeast of Cortez to the Town of Towaoc whi ch is located approximate1 y 15 miles southwest of Cortez. The entire alignment will be within Montezuma County and in part within the reservation bOllntiaries of the Ute Mountain Ute Tri be (Tri bl'!). The area along the proposed pipeline routes changes rapidly in climate anti vegetal covel". The upper reaches of the pipeline are in a zone that receives an average of 14 inches of precipitation per year, while at the terminal point in the Town of Towaoc the average rainfall is only 10 inches per year. The higher rainfall, plus more abundant irrigation, provides lush pasture land, tree-canopied farm residence sites, and almost bog-like drainage ways in the upper portions of the reach. Nearer to Towaoc, the vegetal cover becomes native grasses, sage brush and arid plant types. In the region of the pipeline, the extreme maximum and minimum temperature range is approximately lOS'F to -30'F. The average maximum daily temperatures in tl1e region occur during July and range from R6'F to 9;>oF. In January tl1e average mi nimum daily temoeratures are from l20F to lS'F. The ground elevation along the pipeline routes is between 6400 feet anti S700 feet. 1-1 1040c