The collection consists of correspondence, reports, subject files, news clippings, maps, and other papers, pertaining to: groundwater; surface water supply; water rights; litigation involving Miller & Lux and others; irrigation works; water costs; and, irrigation districts in the San Joaquin Valley, particularly San Joaquin River Water Storage District, Madera Irrigation District,and Madera Canal & Irrigation Company.

The collection consists of notes, memoranda, correspondence, speeches, reports, maps, photographs, and records relating to the U.S. Bureau of Reclamation, Central Valley Project, Sacramento-San Joaquin Delta Region, salinity, the Delta hearings, water rights, acreage limitations, the Reber Plan, fish and wildlife, USBR/CVP contracts and leases, floods and flood control, and miscellaneous power and energy issues.

The collection consists of reports, legal opinions, and comments concerning the Central Valley Project, water districts and reclamation districts, and water rights on the San Joaquin River and elsewhere in California.