Cal. Water Code § 36447.5

At the time and place so fixed or at any time or place to which the hearing is continued, the board shall hold the hearing provided by the resolution of intention at which hearing any person interested, including all persons owning land in the improvement districts whose bonds are proposed to be included in the consolidated bonds or any person otherwise interested in the consolidated bonds, may appear and be heard concerning any matter set forth in the resolution of intention and proposed resolution of issuance or any matters material thereto, including the question of whether the burden on the lands of any of the included improvement districts would be increased.