(1) "Lands covered by water" means lands underlying the water areas of the state below the ordinary high water mark, including salt waters, tidal waters, estuarine waters, natural water courses, lakes, ponds, artificially impounded waters, and wetlands. As specified in Part Nine certain categorical exemptions do not apply when a portion or all of a project or proposal is undertaken on lands covered by water.

(2) Wetlands - Wetlands are defined as areas that are inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Wetlands include those artificial wetlands intentionally created from nonwetland areas created to mitigate conversion of wetlands. Wetlands do not include those artificial wetlands intentionally created from nonwetland sites including, but not limited to, irrigation and drainage ditches, grass-lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990, that were unintentionally created as a result of the construction of a road, street, or highway.

(3) "Lands covered by water" does not include adjacent lands and designated buffers above the ordinary high water mark.