It shall be unlawful for any person willfully to injure or destroy, or attempt to injure or destroy any public sewer, or to molest any sewer or any part thereof by removing the cover of any flush tank, manhole or any part of the public sewer system of the city without authority.

Unlawful tampering with sewers is a Class B Public Offense. (Ord. 83-75 § 2, 1983.)