Raymond M. Slade Jr. Dennis R. Myers 1976 <p>The U.S. Geological Survey, in cooperation with the North Central Texas Council of Governments, the Trinity River Authority of Texas, and the Texas Water Development Board, conducted two time-of-travel studies in the Trinity River basin in November and December, 1975. &nbsp;Field data were collected on the East Fork Trinity River during November 18-22, 1975, and on the Elm Fork Trinity River during December 8-13, 1975. &nbsp;The purpose of these two studies was to provide data that could be used by the Trinity River Authority and the Texas Water Quality Board in the development of a mathematical water-quality model of the two streams. &nbsp;The model is to be used in a comprehensive water-quality management plan for the Trinity River basin.</p> application/pdf 10.3133/ofr76683 en U.S. Geological Survey Time of travel of solutes in the East Fork Trinity River, November 1975; and Elm Fork Trinity River, December 1975; Trinity River basin, Texas reports