Email Record: Letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, United States Army, dated July 27, 1948, submitting a report, together with accompanying papers and illustrations, on preliminary examinations and surveys of Sacramento-San Joaquin River Basin streams, California, for flood control and allied purposes listed in the report. This investigation was authorized by the Flood Control Acts of June 22, 1936, and June 28, 1938.