qualifications.] It shall be the duty of the board of county commissioners to appoint an emergency flood superintendent for each of said districts. Each emergency flood superintendent shall be a citizen of the United States, and of the state of New Mexico, and shall have resided in the district for which he is appointed not less than two years. The term “superintendent” wherever used in this act N.M. Stat. Ann. § 4-50-10 to 4-50-17 shall be construed to mean “emergency flood superintendent.”