All moneys or profits as determined by the Secretary heretofore or hereafter derived from the sale or rental of surplus water under the Warren Act of () [ to 525], or from the connection of a new project with an existing project shall be credited to the project or division of the project to which the construction cost has been charged.36 Stat. 92543 U.S.C. 523February 21, 19111911-02-21