If the total amount of land to be sold at any one sale consists of no more than 50 acres, the board of trustees shall act as the board of appraisement and in such case the provisions of Sections 51685, 51687, 51688, 51689, and 51690 are not applicable.
Source:
Section 51685.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WAT§ionNum=51685.5..