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.

Contents include: Notes; correspondence; map; diagrams; and 3 Pacific Hydrologic Laboratory reports -- Report of tests on loess soil from site of Principia College, Elsah, Illinois, with comments and opinions regarding the material as support for building foundations, July 1, 1931; Report on supplemental tests on loess soil.. September 11, 1931; and Report on supplemental tests on loess soil.. September 30, 1931.

Contents include: Correspondence; notes; diagrams; and Preliminary report on Chatsworth soils, April 13, 1931.

Contents include: Notes; correspondence; diagrams; and Building the Santiago Dam, Orange County, Calif. Union Oil Bulletin,November 1931; Constructing the Santiago Creek rolled-earth dam, by C.R. Browning in Engineering News-Record(May 12, 1932); and Rolled filled dam on Santiago Creek, by S.P. McCasland in Pacific Constructorundated

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.

Contents include: Correspondence; notes; diagrams; and Report of tests on sample of grey clay from refinery plant site, California and Hawaiian Sugar Refining Corporation, Crockett, California, by Pacific Hydrologic Laboratory. October 24, 1931.

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.

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.

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.

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.