(a) The owner of a dam or obstruction who fails to comply with AS 16.05.841 or 16.05.851 or a regulation adopted under AS 16.05.841 or 16.05.851 within a reasonable time specified by written notice from the commissioner is guilty of a misdemeanor, and is punishable by a fine of not more than $1,000. Each day the owner fails to comply constitutes a separate offense.
(b) In addition to the fine, the dam or other obstruction managed, controlled, or owned by a person violating AS 16.05.841 or 16.05.851 or a regulation adopted under AS 16.05.841 or 16.05.851 is a public nuisance and is subject to abatement.