Amends the Reclamation Wastewater and Groundwater Study and Facilities Act to authorize the Secretary of the Interior to participate in the design, planning, and construction of the El Paso Water Reclamation, Reuse, and Desalinization project to reclaim and reuse wastewater and to treat and reuse impaired and brackish groundwater in the service area of the El Paso Water Utilities Public Service Board, El Paso, Texas.