Amends the San Luis Rey Indian Water Rights Settlement Act to direct the Secretary of the Interior and the Attorney General to take all necessary or appropriate steps to: (1) execute and implement on behalf of the United States the settlement agreement approved in principle by the city of Escondido, California, the Vista Irrigation District, the San Luis Rey River Indian Water Authority, and the La Jolla, Rincon, San Pasqual, Pauma, and Pala Bands of Mission Indians (California), dated April 23, 2012; and (2) secure the entry of stipulated judgments or other final dispositions in the proceedings among these parties presently pending before the U.S. District Court for the Southern District of California and the Federal Energy Regulatory Commission (FERC).