California Code, Public Resources Code - PRC § 5047

(a) No provision of this article shall be construed to interfere with any reasonable use of land or other activity existing or occurring on or before January 1, 1981, within the boundary of the reserve that does not conflict with the purposes for which the reserve is established.  Accordingly, any such use of land or other activity is not subject to Section 5001.65.

(b) No provision of this article or Section 5019.65 is intended, nor shall be construed, to interfere in any way with the City of Los Angeles' diversion of water from streams tributary to Mono Lake pursuant to state water rights licenses numbered 10191 and 10192.

(c) No provision of this article shall be construed to affirm or deny the legal right of the City of Los Angeles to divert water from the Mono Basin.

(d) No provision of this article shall be construed for the purpose of establishing, or interfering with the establishment of, the ownership of relicted lands in the current litigation between California and the United States.