The grounds for revoking a well driller's license are:
That he has intentionally made a material misstatement in the application for such license; or
That he has willfully violated any provisions of this chapter; or
That he has obtained, or attempted to obtain, such license by fraud or misrepresentation; or
That he has been guilty of fraudulent or dishonest practices; or
That he has demonstrated lack of competence as a driller of water wells; or
That he has failed or refused to file reports as required under the provisions of this chapter; or
That he has willfully and contumaciously refused to obey reasonable orders, rules, and regulations of the board.