Cal. Pub. Res. Code § 7053

At the time and place fixed in the resolution for the meeting, all sealed proposals which have been received shall in public session be opened, examined, and recorded by the governing body, and the property may be leased to the highest responsible bidder in the judgment of the governing body. The governing body may, should it deem such action for the best public interest, at any time reject any and all bids and withdraw the property from lease.