Harbors and Navigation Code § 6233

6233.

Any informality in procedure or in the conduct of the election shall not invalidate the establishment of the district.

Any proceedings in which the validity of its establishment is denied shall be commenced within sixty days after the date of filing in the office of the Secretary of State of the certificate mentioned in this article. Otherwise, the establishment and legal existence of the district and all proceedings in respect thereto are valid in every respect and incontestable.