A bill to provide for the preservation and enhancement of critical habitat for migratory waterfowl and other wetlands dependent migratory birds of the Pacific flyway in the grasslands area of the San Joaquin Valley, Calif.

Makes the cost of water furnished by the Central Valley, California, project to public organizations nonreimbursable or nonreturnable under Federal reclamation laws, unless the public organizations (except the State of California) (1) deliver a specified quantity of water annually to the United States Fish and Wildlife Service, and (2) construct water conveyance facilities necessary for such delivery. Requires a contract between the Service and a public organization, pursuant to this Act, to direct reversion of the right to facilities use and water rights should the public organization fail to carry out its contractual obligations. Restricts contracts for the use of certain lands to wildlife and water fowl habitat conservation or purposes agreed upon by the Service and the public organization.