This section does not: Apply to the improvement of harbors; or Affect any act of the General Assembly relating to the construction of a wharf or to the rights of a riparian owner. Ballast, ashes, filth, earth, oysters, or oyster shells may not be deposited from a vessel to a site: In the Chesapeake Bay above Sandy Point; In Herring Bay; or Below the high water mark in a river, creek, or harbor in the State. A person in command or having charge of a vessel that violates this section is guilty of a misdemeanor and on conviction is subject to a fine of not less than $20 and not exceeding $150. The Natural Resources Police Force shall enforce this section.