In order to provide more suitable sites for building and other
uses, improve surface drainage, and control erosion, the following
requirements shall be met:
A. All lots, tracts, or parcels shall be graded to provide proper drainage
away from buildings and dispose of the runoff without ponding, and
all land within a development shall be graded to drain and dispose
of surface water without ponding, except where other arrangements
are approved by the Board of Supervisors.
B. All drainage provisions shall be designed to adequately handle the
surface runoff and carry it to the nearest suitable outlet such as
a curbed street, storm drain, or natural watercourse. Where drainage
swales are used to divert surface waters away from buildings, they
shall be paved, sodded or planted and shall be of such slope, shape
and size as to conform with the requirements of the Township.
C. Concentration of surface water runoff shall only be permitted in
swales or watercourses that lead to a natural watercourse or drainage
structure.
D. Grading will not be done in such a way so as to divert water onto
the property of another landowner without the expressed consent of
the Township and the affected landowner.
E. During grading operations, necessary measures for dust control will
be exercised.
F. Topsoil shall be preserved and redistributed as cover and shall be
expeditiously planted with perennial grasses or ground cover.
G. Grading equipment will not be allowed to cross perennial streams.
Provision will be made for the installation of culverts or bridges.
Emergency crossings may be permitted through permission of DEP.
H. Lawn areas shall be designed and constructed to maintain a minimum
of 1.5% slope, or utilize underdrain to avoid creating prolonged saturated
soils. Areas of ponding within lawn areas discovered after construction
and/or vegetation is established, shall be regraded to drain, or underdrained.