Upon the formation of a maintenance area, the department shall thereafter operate and maintain the unit until such time as the maintenance area may be dissolved pursuant to this chapter. If the board or the department forms a maintenance area for a portion of a unit of a project, any remaining portion of the unit of a project not included in the maintenance area shall remain the responsibility of the local agency obligated to operate and maintain that unit.
Source:
Section 12878.21, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=WAT§ionNum=12878.21..