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<br />~ <br />CO) <br />- <br />.... <br />c <br />c <br /> <br />JOSEPH CITY UNIT, HOLBROOK PROJECT, ARIZONA <br /> <br />SUMMAR Y SHEET <br /> <br />Location: Near Joseph City, central Navajo County, Arizona, on the <br />Little Colorado River, 11 miles west of Holbrook, Arizona. <br /> <br />Status Regarding Authorization: The Joseph City Irrigation Company <br />has undertaken construction and other improvements sub- <br />stantially in accord with the plan found most feasible in the <br />Bureau of Reclamation investigations. The pres ent private <br />project is a going concern which has, commendably, under- <br />taken the solution of its problems; it is not thought to require <br />the assistance of the Bureau of Reclamation. This report is <br />therefore prepared for the record, and not to support a <br />request for a Bureau of Reclamation project authorization. <br /> <br />PLAN <br /> <br />The most feasible plan involves the continued use of the unregulated <br />flow of the Little Colorado River and desilting the water before use; <br />rehabilitating the upper canal by cleaning, and enlarging when neces- <br />sary; and providing a supplemental supply of groundwater by pumping <br />from the Coconino sandstone on the north side of the river, The <br />groundwater supply is particularly valuable as a good quality diluent <br />of the river water which carries an undesirably large proportion of <br />sodium salts and large quantities of sediment. <br /> <br />DEFINITE PLAN REPORT <br /> <br />Under the circumstances a Definite Plan Report is not necessary. <br /> <br />COSTS, BENEFITS, ALLOCATIONS, AND REPAYMENT <br /> <br />The subjects under the above heading are not treated for they are not <br />germane. The Joseph City Irrigation Company has, of its own initi- <br />ative, undertaken desirable measures to solve the problems of the <br />project. Bureau cost estimates would be based on somewhat differ- <br />ent assumptions than controlled the actual construction thus far <br />attempted by the District and comparisons without making a recon- <br />ciling study would only lead to confusion and erroneous ideas. <br /> <br />IRRIGA TION <br /> <br />Frost-free Period: 172 days. <br /> <br />Precipitation: 8.83 inches average yearly. <br /> <br />Eleva tion: 5, 000 feet above sea level. <br />