Pub. L. 92-514, tit. III, sec. 302

Sec. 302. Any exchanges of water which may be required in connection with the operation of the division authorized by this title shall be made in conformity with applicable State law and shall in no way jeopardize, diminish, or otherwise alter contractual rights and obligations now in existence or water rights acquired under State law, and shall be without prejudice to, but in enjoyment of, the rights of the appropriator participating in the exchange as a use under his original appropriation. Existing water users shall bear no additional costs as a consequence of any exchange in their service area.