No person shall conduct any activities within or immediately adjacent to any wetland
that would materially affect in an adverse way any wetland which has been determined
to be a conservation area without first obtaining a permit as provided below in division
4 of this article, if those activities adversely alter the function or productivity
of, or take place within a conservation area. Such determination shall be issued by
the environmental protection division, except as provided in section 15-382(2). Continuation of and maintenance of all activities legally conducted and/or permitted
prior to the effective date of this article shall be exempt from this article.