To amend the Reclamation Wastewater and Groundwater Study and Facilities Act to authorize the Secretary of the Interior to particpate in the Inland Empire regional water recycling project, to authorize the Secretary to carry out a program to assist agencies in projects to construct regional brine lines in California, and to authorize the Secretary to participate in the Lower Chino Dairy Area desalination demonstration and reclamation project.

Amends the Reclamation Wastewater and Groundwater Study and Facilities Act to authorize the Secretary of the Interior: (1) in cooperation with the Inland Empire Utilities Agency, to participate in the design, planning, and construction of the Inland Empire regional water recycling project; (2) in cooperation with local governments, to carry out a program to assist agencies in projects to construct regional brine lines to export the salinity imported from the Colorado River to the Pacific Ocean; (3) to carry out a study and program to assist water agencies in projects to construct such brine lines in San Francisco Bay and Santa Clara Valley, California; and (4) in cooperation with the Chino Basin Watermaster, the Inland Empire Utilities Agency, the Western Municipal Water District, and the Santa Ana Watershed Project Authority, to participate in the design, planning, and construction of the Lower Chino Dairy Area desalination demonstration and reclamation project.

Sets forth limits respecting the Federal cost share of such projects and study.

Authorizes appropriations.