A. 
Land within the Township will be classified into the following slope areas:
0 to 14.9
Zero to 15%
15 to 19.9
15 to 20%
20 to 24.9
20 to 25%
25 to 29.9
25 to 30%
30 and over
30% or greater
B. 
For classification purposes, slope areas shall be computed for the various slope categories between two foot-contours. The percent of slope, rise in feet per one-hundred-foot run, shall be established by measurement of run perpendicular to the contours.
Within any slope area as established by this Part 3, no soil or vegetation shall be disturbed nor shall any building or structure be erected, constructed or substantially enlarged unless and until it can be demonstrated by information, plans and studies furnished by an applicant that the following requirements can be met.
No subdivision or site plan shall be approved if the total area of lot grading[1] exceeds the following standards:
Schedule of Maximum Allowable Grading (MAG)
[Amended 4-15-1997]
Zoning Districts
Maximum Allowable Grading
(square feet)
Residential Districts
R-1
27,800
R-2
41,700
R-3
62,550
R-5
104,250
WR and RC
See standard development guidelines as contained in Part 5, Zoning
Nonresidential Districts
B
83,400
LB
83,400
PO/R
[Amended 12-2-1997]
173,750/41,700
[1]
Note: The area of lot grading shall include all portions of a lot which have been disturbed by grading activity during construction. In addition, this area shall also include all impervious cover, such as buildings, driveways and patios, even if built on existing grade, and shall also include, where applicable, the sewerage disposal systems; any grading associated with stormwater retention facilities, and other disturbances associated with creating public improvements on the lot. Beyond the impervious cover and sewerage disposal systems, the area of lot grading shall be synonymous with the "limit of grading."
All slope areas are assigned an adjustment factor to reflect the increased risk to the public of developing on more steeply sloping ground, in accordance with the following table:
Schedule of Slope Adjustment Factors
Slope
Area Adjustment Factor
0 to 14.9%
1.00
15 to 19.9%
1.75
20 to 24.9%
2.50
25 to 29.9%
3.50
30 and over
5.50
A. 
The total graded area (TGA) for a lot shall be computed by multiplying the land area to be graded, in square feet, times the adjustment factor for the slope classification where grading occurs.
B. 
If the total graded area is in excess of that allowed by § 113-114, the applicant may investigate alternative lot grading concepts, including the use of retaining walls, innovative building types which relate to slope conditions or the relocation of the proposed use within the site to avoid disturbance of steeply sloping lands. No subdivision or site plan may be approved unless the applicant can demonstrate compliance with this Part 3.
A. 
If, at the discretion of the applicant, a larger area of grading is required than that which is allowed in the schedule, lot size may be increased to compensate for the additional grading. Lot sizes will be calculated as follows:
[Amended 12-18-2001]
Total Graded Area (TGA) x Area
=
Minimum Required Area
Maximum Allowable Grading (MAG)
B. 
In no case shall the minimum lot size be less than that required for the zone district within which the site is located. (See Part 5, Zoning, Schedule I, Schedule of Area, Land and Building Requirements.[1])
[1]
Editor's Note: Schedule I is included at the end of this chapter.
[Added 9-5-1989 by Ord. No. 2:19E-89; amended 3-20-2007 by Ord. No. 2007-4]
Within any area containing slopes of 20% or greater, no subdivision shall be created, no site plan shall be approved, and no land disturbance shall be permitted, except in conformance with the following regulations:
A. 
All slopes of 20% or greater located on a tract of land shall be protected from disturbance and preserved in a natural state, except as provided hereafter.
B. 
All areas of a tract of land containing slopes of 20% or greater shall be delineated on a plan showing the proposed site plan, subdivision or land disturbance. Slope delineation shall be in accordance with § 113-112 of this Part 3.
C. 
A twenty-five-foot slope transition buffer shall be established from the edge of delineated slopes of 20% or greater. No structure, parking area or private drive may be located within this buffer. Construction activities permitted within this buffer shall be limited to grading incidental to an approved land disturbance, site development, installation of on-site septic systems and installation of on-site potable water supply systems.
D. 
Roadways shall be designed to follow natural terrain. Natural slopes of 20% or greater shall not be disturbed for new road construction. On all slopes greater than 15%, the maximum horizontal distance of disturbance associated with new road construction shall not exceed 75 feet in width.
E. 
At the Planning Board's discretion, slopes of 20% or greater and slope transition buffers may be disturbed, provided that the slope of 20% or greater is man-made or represents an isolated topographic condition, the destruction of which will not result in significant modification to the drainage capabilities or visual character of the property. Such disturbance shall be limited to no more than 1,000 square feet, although the Board may grant further relief if special circumstances warrant further consideration.