Notwithstanding the provisions of Section 6894, the board of the Sacramento-Yolo Port District shall not do any of the following:

1. (a) Sell or dismantle the Deepwater Channel or the North Terminal Property without the prior consent of the City of Sacramento, the County of Sacramento, and the County of Yolo.
2. (b) Sell or lease for nonmaritime purposes, land in excess of 10 acres located north of Southport Parkway and west of Lake Washington, unless, prior to executing a sale or lease, the board makes a written finding, based on substantial evidence in the record, that the proposed sale or lease is necessary to maintain the financial viability of the port.