As used in this article, the following terms shall have the meanings indicated:
DISTURBANCEThe placement of impervious surface, the exposure or movement of soil or bedrock, or the clearing, cutting, or removing of vegetation.
IMPERVIOUS SURFACEAny structure, surface, or improvement that reduces or prevents absorption of stormwater into land, and includes porous paving, paver blocks, gravel, crushed stone, decks, patios, elevated structures, and other similar structures, surfaces, or improvements.
REDEVELOPMENTThe construction of structures or improvements on areas which previously contained structures or other improvements.
STEEP SLOPESAny slope equal to or greater than 20% as measured over any minimum run of 10 feet. Steep slopes are determined based on contour intervals of two feet or less.