§ SR-21. Site grading.

A. 

Proposed grades for streets and lot areas shall bear a logical relationship to the natural topography and should always provide good drainage. Trees should be preserved wherever possible. Each lot should be graded to provide a maximum amount of usable lot area. Where steep slopes are required to provide usable lot areas, they shall not exceed a slope of one on three.

B. 

If, in the opinion of the Planning Board, the proposed grading may cause difficulties, a grading plan will be required as a part of the final submission, prepared as follows:

(1) 

Sheet size: 24 inches by 36 inches.

(2) 

Scale: one inch equals 50 feet or larger.

(3) 

Showing the existing contours for the entire area extending 200 feet beyond the property.

(4) 

Showing all proposed structures, including houses, together with proposed elevations, indicating clearly by point elevations and arrows the flow of rainfall runoff for each plot.

C. 

Topsoil shall not be removed from the site without the approval of the Planning Board.

(1) 

Approval to remove topsoil from the site will require a survey by a professional engineer showing test borings at sufficient intervals to establish that there is an excess of topsoil over and above that required for a minimum of six inches on all areas to be landscaped.

(2) 

Topsoil shall be defined as that meeting New York State specifications.

D. 

Minimum grades shall be established by the Planning Board for all subdivisions of land subject to flooding. The filling of such land, including the source of material, shall be under the control of the Planning Board.

E. 

Where the subdivider intends to fill low lands by dredging other lands or underwater lands owned by the subdivider, the dredging plans shall be approved by the Planning Board, the Board of Trustees, the County Mosquito Commission and the United States Corps of Engineers.