(A) All grading in streets and alleys shall be done in accordance with Standard Specifications for Road and Bridge Construction in the State of Illinois.
(B) Other site grading shall comply with the following regulations.
(1) Subgrade. Before grading is started, the entire area shall be cleared of all tree stumps, roots, brush and other objectionable materials, and of all trees not intended for preservation. Subsequently, the subgrade shall be properly shaped, rolled and uniformly compacted.
(2) Cuts. In cuts, all tree stumps, boulders and other objectionable materials shall be removed to a depth of at least two feet below the graded surface.
(3) Tree preservation. Existing vegetation, especially trees having a diameter of four inches or more when measured 12 inches above the ground, should be retained and protected to the maximum extent consistent with development of the site.
(4) Erosion control. The design of every subdivision shall be consistent with the natural limitations presented by topography and soil so as to create the least potential for soil erosion. Soil shall be exposed for the shortest feasible period of time. Temporary vegetation or, where appropriate, mulching or other covering shall be used to protect exposed areas.
(5) Sedimentation control. Appropriate devices, such as sediment basins, debris basins, desilting basins or silt traps, shall be installed and maintained to remove sediment from surface waters leaving the subdivision.
(6) Requirements. All grading and sediment and erosion control shall conform with the requirements of the county stormwater drainage and detention and sediment control ordinance.
(1993 Code, § 92.33) (Ord. passed 10-17-1956; Ord. passed 10-18-1978; Ord. passed 9-18-2002; Ord. 2002-14, passed - -2002) Penalty, see § 92.999