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<br />The problems that confront us in the Colorado River Basin are <br />complex. An investigational program mu.ch more comprehensive than at present <br />is desirable. I suggest that representatives of both the upper and the Lower <br />Colorado River Basins sit with Geological Survey representatives to reach <br />agreement on a comprehensive program that will supply the water facts needed <br />to make operations under the Colorado River Compacts feasible. Such programs <br />should be practicable as to operations and financing. The Survey will cooperate <br />in such discussion at any time. <br /> <br />*********** <br /> <br />IRRIGATION INVESTIGATIONS OF THE U. S. SOIL CONSERVATION SERVICE <br /> <br />Harry F. Blaney, Principal Irrigation Engineer <br /> <br />The nucleus of investigations by the Division of Irrigation Engineering <br />and Water Conservation of the Soil Conservation Service was the irrigation work <br />established by Congress in 1898 in the Office of Experiment Stations of the <br />United States Department of Agriculture. This work was continued by the <br />Division under the Bureau of Public Roads until 1932 and the Bureau of <br />Agricultural Engineering until 1939, and then with the Soil Conservation <br />Service under three major projects: (a) Utilization of Water in Irrigation; <br />(b) Irrigation Conduits and Structures; and (c) Customs, Regulations and <br />Laws Relating to Irrigation. In 1939 the Division was transferred to the <br />Soil Conservation Service. <br /> <br />Investigations by the Division and its predecessor.s have done much <br />to improve irrigation practice and promote a more economical use of water. <br />They have provided a better foundation for engineering planning of new <br />irrigation enterprises. The Division has assembled a vast fund of technical <br />information concerning irrigation requirements of crops, proper times of ap- <br />plication of irrigation water, evaporation from soils and water surfaces, <br />capacities and transmission losses of carrying systems, drainage of irrigated <br />lands, constunptive use, water spreading, pumping and water laws. <br /> <br />These data are made available through publication of bulletins of <br />federal and state agencies. Some recent reports deal with water problems in <br />. the Colorado River Basin and the Pacific Southwest: <br /> <br />1. Silt in the Colorado River and Its Relation to Irrigation - <br />Fortier and Blaney <br /> <br />2. <br /> <br />Putting Down <br />Carl Rohwer. <br />Circular No. <br /> <br />and Developing Wells for Irrigation - <br />Soil Conservation Service, U.S.D.A. <br />546. 1941. <br /> <br />3. Consumptive Water Use and Requirements - Harry F. <br />Blaney, Paul A. Ewing, Karl V. Morin and Wayne D. <br />Criddle. neprint of the Participating Agencies, <br />Pecos River Joint Investigation. National Resources <br />Planning Board. 1942. <br /> <br />-9- <br />