Contents include: Discharge records for Santa Ana River Basin streams and paper, Natural water losses in mountain drainage areas of southern California, by Harold C. Troxell and Harlowe M. Stafford, in Transactions,American Geophysical Union (October 1949, p. 752-).

Contents include: Notes; data; graphs.

Contents include: Water production data; contract of employment for Charles H. Lee; and Report to San Bernardino Valley Water Conservation District on legal problems of San Bernardino underground water basin, by W.H. Jennings, 1953.

Contents include: Correspondence with L.W. Grayson, 1948-49.

This collection contains reports, correspondence, documents, maps, photographs, clippings, etc., pertaining to projects in hydraulics, sanitation, irrigation, municipal water supply, surface water and groundwater hydrology, and soil in California and other Western states, particularly for the City of Los Angeles regarding water supply from the Owens Valley.