The collection consists of articles, brochures, correspondence, maps, news clippings, publications, research notes, reports, etc., compiled by Malca Chall during the course of her career with the Regional Oral History Office (ROHO) of the Bancroft Library, University of California-Berkeley. Collection includes material relating to California water resources.

Of particular significance are documents concerning the 160-Acre Policy, Cargill Salt Company, Central Valley Project, the Delta, the Department of Water Resources, the Peripheral Canal, Reclamation Policy, San Francisco Bay, and the Westlands Water District.

Oral histories conducted by ROHO pertaining to California water resources are available at: https://www.lib.berkeley.edu/libraries/bancroft-library/oral-history-center