The following shall be used for mapping natural resources or other features of plans:

A.

Streams (perennial, intermittent, mapped, and unmapped) with identifiable banks and beds, lakes, ponds, and tidal wetlands are subject to the regulations of this resource.

B.

Initial identification of the watercourses/water bodies shall be made using National Hydrographic Dataset (NHD) utilized by the United States Geological Survey or more accurate information, as available. Field verification to determine evidence and location of channelized flow is required for a specific determination.

C.

Measurements for the boundary are to be made horizontally, perpendicular from the following reference points: top of bank of perennial streams; centerline of intermittent streams; mean water level of lakes, ponds, and tidal wetland; boundary of the floodplain and wetland as determined by this Division.

D.

Measurements shall be made at appropriate intervals perpendicular to these reference points so as to accurately reflect the character of the adjacent land.

E.

Boundaries that are dependent on elevation shall be based on on-site, one (1) foot contour intervals.

F.

The area within existing impervious area such as roadways, parking lots, structures, sidewalks, etc., shall not count towards the area of any natural resource.

G.

Measurements of forest area shall be made based on the exterior Critical Root Zone (CRZ) of the trees.

H.

Final determination of the boundaries of the RBA district shall be made by the Department.

(Ord. No. 97-172, § 3(ch. 13, § 20.510), 12-31-1997; Ord. No. 01-112, § 1(Exh. A), 3-12-2002; Ord. No. 09-068, § 1(Exh. A), 11-10-2009; Ord. No. 21-009, § 6, 12-14-2021)