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How Boulder Dam will refinance Colorado River Project : statement to Congressional Colorado River Commission regarding present and probable future power demands, power supply and cost per K.W.H. for Southern California
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_____________________ (Indexed on Page 9) _____________________ LETTER OF TRANSMITTAL October 16, 1928. Colorado River Board, Los Angeles, California. Attention Mr. Charles P. Berkey, Secretary. Gentlemen: In compliance with your request of August 31st last, there is herewith presented for your consideration a statement compiled by the Bureau of Power and Light of the Department of Water and Power of the City of Los Angeles of present and probable future power demands, power supply and cost per K. W. H. from proposed Boulder Canyon Project from steam plants and other sources for Los Angeles and Southern California, including underlying data. The engineers and officials of this Department will be available at any time you may desire a conference for any further development of the facts contained in this statement, and will gladly supply any information desired supplementing such statement. The City of Los Angeles desires and is willing to enter into a firm contract with the Government for such portion of the power as may be available from the proposed Boulder Canyon Project, as seems fitting and may be allocated to it on such basis as will return to the Government its investment with interest within such reasonable time as may be prescribed. Respectfully submitted, BOARD OF WATER AND POWERCOMMISSIONERS. (Signed) J. R. RICHARDS, President. R. F. DEL VALLE, WM. P. WHITSETT, WILL E. KELLER, JOHN R. HAYNES, E. F. SCATTERGOOD, Chief Electrical Engineer and General Manager. ____________________________________ STATEMENT OF PRESENT AND PROBABLE FUTURE POWER DEMANDS, POWER SUPPLY AND COSTS PER K. W. H. FROM PROPOSED BOULDER CANYON PROJECT, FROM STEAM PLANTS AND OTHER SOURCES FOR LOS ANGELES AND SOUTHERN CALIFORNIA __________ Prepared by the Bureau of Power and Light, Department of Water and Power, City of Los Angeles. October 16, 1928. __________ This statement is prepared and presented to the Colorado River Board, appointed by the Secretary of the Interior under Resolution 65 of the Seventieth Congress, in response to the request of its Secretary, Mr. Charles P. Berkey, under date of August 31, 1928. The Project Contemplated The proposed Boulder Canyon project contemplated in this study would consist of a 550-foot dam, a power plant of approximately 1,000,000 horsepower and an All-American Canal--all in accord with the plans and recommendations of the Interior Department. This project would make available, annually, 3,600,000,000 kilowatt-hours at the power house switchboard, or 3,168,000,000 kilowatt-hours delivered at Los Angeles and other points for use at 55 per cent load factor with an allowance of 12 per cent average transmission loss. Location and Character of Power Market The proposed Boulder Canyon project is fairly central as between the cities of Los Angeles, Salt Lake and Tucson. Other power developments of magnitude and apparent low cost, in the watershed of the Colorado, are available to the Salt Lake and Southern Arizona districts with much shorter transmission. Whether or not Boulder Canyon power will be transmitted to those sections is not known, but, in the estimates of demand for Boulder Canyon power, the more conservative course has been taken of assuming that the Salt Lake City and Southern Arizona sections are not, for the present, to be depended upon as a market. Having in mind Southern California, including the southern part of the San Joaquin Valley, Northern and Central Arizona and Southern Nevada as the location of a prospective market for Boulder Canyon power, there are present and prospective uses for electric power in mining, pumping for irrigation and domestic use, manufacturing and the usual commercial and domestic purposes. Because of pumping for irrigation, a network of electric lines has been constructed which, incidentally, furnishes all classes of electric service quite generally throughout the rural districts in Southern California and portions of Arizona. In Southern California the use of electricity in the rural districts equals one-third or more of the total uses in the urban centers, a condition to be found only in a few and comparatively small sections elsewhere in the United States, though it is a live subject. The condition of general use of electricity in the rural districts, combined with a more general use in the municipalities of this section than in the other cities of our country, means attractiveness in living, a readiness on the part of utilities to deliver service, and an immediate response and a rapidly increasing demand on the part of users, in the event an abundant supply of hydro-electric power, at reasonable and stable rates, is assured. The approval by Congress of an enabling act would give such assurance. The demands for power in Arizona and Nevada have not been included, excepting in small part, in the present study, as before stated. Estimated demands for the whole of Arizona, however, vary from 100,000 horsepower to a maximum of 400,000 horsepower as indicated by Senator Ashurst, and this power market, together with the relatively small estimated demand in Nevada, may stand as an additional safety factor in the successful marketing of power from Boulder Canyon. The climatic and topographic features of Southern California and the Southwest present a special problem from the standpoint of water supply both for domestic and irrigation purposes. With the rapidly increasing population comes the necessity of providing more power for pumping purposes. This is well illustrated in the present plan of the cities of the coastal plain of Southern California, including Los Angeles, to bring 1500 second-feet of waiter from the Colorado River to supply their domestic needs as their present available reserves are being rapidly depleted. This project will necessitate lifting the water over an intervening range of mountains and consequently will require an increasingly large block of cheap power, as the capacity of the aqueduct is increasingly utilized. This requirement has been regarded as a part of the normal growth in power demand and has TABLE NO. 1 Growth of Population in the City of Los Angeles Bureau of Power and Light, City of Los Angeles, Calif., October, 1928 ===================================================================== Year- Dept. of Water & Composite Base City Directory Power Estimate (1) 1926 (2) Base 1928 (3) _____________________________________________________________________ 1890 55,000 ..... 51,400 1891 60,000 ..... 52,400 1892 65,000 ..... 54,500 1893 71,000 ..... 59,800 1894 76,000 ..... 68,400 1895 82,000 ..... 78,700 1896 90,000 ..... 83,300 1897 100,000 ..... 92,000 1898 110,000 ..... 95,400 1899 120,000 ..... 98,800 1900 131,000 102,479 104,500 1901 142,000 116,000 116,900 1902 154,000 128,000 126,500 1903 169,000 138,000 135,400 1904 185,000 168,000 157,800 1905 203,000 206,000 197,300 1906 221,000 238,000 231,000 1907 243,000 265,000 265,100 1908 267,000 285,000 284,100 1909 283,000 303,000 303,500 1910 320,000 319,198 330,600 1911 350,000 356,000 361,500 1912 382,000 389,000 448,100 1913 414,000 423,000 497,000 1914 448,000 440,000 523,700 1915 485,000 451,000 541,000 1916 528,000 480,000 553,500 1917 572,000 494,000 550,800 1918 619,000 515,000 569,000 1919 678,000 540,000 607,800 1920 716,000 576,600 672,800 1921 780,000 697,000 744,000 1922 840,000 789,000 835,800 1923 904,000 925,000 986,000 1924 975,000 1,056,000 1,102,000 1925 1,053,000 1,110,000 1,195,000 1926 1,133,000 1,180,000 1,307,000 1927 1,212,000 1,250,000 1,371,000 1928 1,296,000 ..... 1,431,000 1929 1,378,000 ..... ..... 1930 1,460,000 ..... ..... 1931 1,545,000 ..... ..... 1932 1,633,000 ..... ..... 1933 1,720,000 ..... ..... 1934 1,803,000 ..... ..... 1935 1,895,000 ..... ..... 1936 1,983,000 ..... ..... 1937 2,075,000 ..... ..... 1938 2,172,000 ..... ..... 1939 2,267,000 ..... ..... 1940 2,363,000 ..... ..... _____________________________________________________________________________________ Lippincott & Parker-Los Angeles Aqueduct Report 1905: City of Los Angeles population: 1905............................180,000 1925............................390,000 Kelker, Delew & Co.-Los Angeles Rapid Transit Report 1925: City of Los Angeles population: 1924..........................1,100,000 1940..........................1,900,000 (Arrived at by paralleling Chicago's growth.) Sondregger-Colorado River Hearing, page 90, 1925: City of Los Angeles population: 1925..........................1,000,000 1950..........................2,180,000 (Quoting from an exhaustive study made by a board of engineers in 1925.) Los Angeles Traffic Commission, 1922: *City of Los Angeles population: 1922............................760,000 1928............................990,000 1932..........................1,045,000 ___________ *Average of many independent studies. =================================================================================== Page 2

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