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<br />--- <br />r <br />, <br /> <br />~. <br /> <br />,.' <br /> <br />. <br /> <br />3 <br /> <br />.~ r. \~ ., <br />. ..... I <br />l..,.,.,,-....J..... <br /> <br />DEP ARTME:lT OF 'nBE H.'T'i:RIOR <br />UNITED STATES RECLilI"lATION SERVICE <br /> <br />Dashin~to~, D. C., Feb. 4, 1922. <br /> <br />The Secratary <br /> <br />of the Intarior. <br /> <br />Sir: <br /> <br />Tran~ittad her~with is I~aport on the Problems of <br /> <br />the Lower Colorado Basin," required by th0 rict of Congress <br /> <br />approvGd l'.l"O' 18, 1920, C!lti tIed "An Act to provide for <br /> <br />an exnmination and raport on t~e condition and possiblG <br /> <br />irrigation devalopmant of th~ Imperial V,."llay in California" <br /> <br />(41 St2t., 600). <br /> <br />This report supersedes the preliminary report tran&mittcd <br /> <br />to you on NOV2:nbcr '27, 19:20, in ,ihich it "'las st.:lt3d that <br /> <br />furthar raport '.'/Quld. be made. <br /> <br />Tha study of the Color~do River Basin from thJ stancpoint <br /> <br />of its usa in irrig~tion and otharwisc IDalf bc said to DdNe bu- <br /> <br />gun by th3 est~JliBhment of Gt~~ions for thJ rreasurCQdnt of <br /> <br />stream discnargJ in "",'ious parts of thu basin in 1894 ar,d <br /> <br />1895 by the U. S. G"ological SurV.:JY. Ono of t'lese stations <br /> <br />was established at Yuma, Ari~ona. to intJrcept a~d measure <br /> <br />the discharg.J of tile 3ntiru 3troZlIIl, t:ure b:Jin<s no tributa- <br /> <br />rigs belovl this point. It nas fo~~d that gage height readings <br /> <br />had baen kept for a considerable period by the Southern Pac if- <br /> <br />ie Railroad COlllJlany at YumE: and th"se ,,"re utilized so far <br />