(A) Prior to grading within the limits of the right-of way, the entire area to be affected with improvements, including areas intended for pavement, water mains, sewer lines, and drainage facilities, shall be cleared of all tree stumps, roots, brush, and other objectionable materials and of all trees not intended for preservation.
(B) Existing vegetation, specifically trees having a diameter of four (4) inches or more when measured at a point twelve (12) inches above the ground, should be retained and protected to the maximum extent consistent with the development of the site.