§ 363-8. Design principles and requirements.

A. 

General. Every plan for erosion control shall be designed in accordance with the general design principles and all other requirements contained herein and in the Standards for Soil Erosion and Sediment Control in New Jersey. In the interpretation of these requirements, the term "shall" is always mandatory, and the word "may" is permissive; also, words used in the present tense include the future tense; and the singular includes the plural, unless the context clearly indicates the contrary.

B. 

Design criteria.

(1) 

Stripping of vegetation, grading or other soil disturbance shall be done in a manner which will minimize soil erosion.

(2) 

Whenever feasible, natural vegetation shall be retained and protected.

(3) 

The extent of the disturbed area and the duration of its exposure shall be kept within practical limits.

(4) 

Either temporary seeding, mulching or other suitable stabilization measure shall be used to protect exposed critical areas during construction or other land disturbance.

(5) 

Drainage provisions shall accommodate increased runoff resulting from modified soil and surface conditions, during and after the development or disturbance.

(6) 

Water runoff shall be minimized and retained on-site wherever possible to facilitate groundwater recharge.

(7) 

Sediment shall be retained on-site to the maximum extent feasible.

(8) 

Diversions, sediment basins and similar required structures shall be installed prior to any on-site grading or disturbance.

(9) 

Satisfactory provisions shall be made for drainage to accommodate all increased runoff resulting from modifications of soil and surface conditions during and after development or disturbance. Where necessary, the rate of water runoff shall be mechanically retarded.

(10) 

Provisions shall be made to protect existing and proposed storm drainage systems from siltation during construction.

(11) 

Water concentrations at tops of slopes shall be diverted to safe outlets by diversions or other means as specified in the standards.

(12) 

Detention or retention basins, where required, should be constructed in accordance with the standards, to retain all sediment on-site to the maximum extent feasible. When deemed necessary by the district, fencing shall be constructed around detention or retention areas.

[Amended 5-8-1979 by Ord. No. 14-79]

(13) 

For permanent or temporary vegetation cover, the soil treatment and seed mixture shall be in accordance with the standards.

(14) 

The timing of construction sequences shall be specified and shall provide for the installation of all erosion control measures prior to commencement of construction. The sequence of construction shall also be timed to allow the maximum time for establishment of stabilization measures.

(15) 

During construction all exposed soils that have the potential for causing off-site environmental damage shall be stabilized by temporary vegetative cover or by other means as prescribed in the standards.

(16) 

When permanent vegetative cover cannot be established by seeding, the disturbed areas shall be sodded or vegetated by other means as prescribed in the standards.

(17) 

Subsurface drainage is to be provided in areas having a high water table, to intercept seepage that would adversely affect slope stability, building foundations or create undesirable wetness.

(18) 

Adjoining property shall be protected from excavation and filling operations.

(19) 

Fill shall not be placed adjacent to the bank of a stream or channel, unless provisions are made to protect the hydraulic, biological, aesthetic and other environmental functions of the stream.