The applicant's site development project shall be reviewed as
a part of the subdivision or site plan review process by the municipal
board or official from which municipal approval is sought. That municipal
board or official shall consult the engineer retained by the Planning
Board to determine if all of the checklist requirements have been
satisfied and to determine if the project meets the standards set
forth in this Part 2.
The following information shall be required:
A. Topographic base map. The reviewing engineer may require upstream
tributary drainage system information as necessary. It is recommended
that the topographic base map of the site be submitted which extends
a minimum of 200 feet beyond the limits of the proposed development,
at a scale of one inch equals 200 feet or greater, showing two-foot
contour intervals. The map as appropriate may indicate the following:
existing surface water drainage, shorelines, steep slopes, soils,
erodible soils, perennial or intermittent streams that drain into
or upstream of the Category One waters, wetlands and floodplains along
with their appropriate buffer strips, marshlands and other wetlands,
pervious or vegetative surfaces, existing man-made structures, roads,
bearing and distances of property lines, and significant natural and
man-made features not otherwise shown.
B. Environmental site analysis. A written and graphic description of
the natural and man-made features of the site and its environs. This
description should include a discussion of soil conditions, slopes,
wetlands, waterways and vegetation on the site. Particular attention
should be given to unique, unusual, or environmentally sensitive features
and to those that provide particular opportunities or constraints
for development.
C. Project description and site plan(s). A map (or maps) at the scale
of the topographical base map indicating the location of existing
and proposed buildings, roads, parking areas, utilities, structural
facilities for stormwater management and sediment control, and other
permanent structures. The map(s) shall also clearly show areas where
alterations occur in the natural terrain and cover, including lawns
and other landscaping, and seasonal high groundwater elevations. A
written description of the site plan and justification of proposed
changes in natural conditions may also be provided.
D. Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of Articles
XIII through
XVI are being met. The focus of this plan shall be to describe how the site is being developed to meet the objective of controlling groundwater recharge, stormwater quality and stormwater quantity problems at the source by land management and source controls whenever possible.
E. Stormwater management facilities map. The following information,
illustrated on a map of the same scale as the topographic base map,
shall be included:
(1) Total area to be paved or built upon, proposed surface contours,
land area to be occupied by the stormwater management facilities and
the type of vegetation thereon, and details of the proposed plan to
control and dispose of stormwater.
(2) Details of all stormwater management facility designs, during and
after construction, including discharge provisions, discharge capacity
for each outlet at different levels of detention and emergency spillway
provisions with maximum discharge capacity of each spillway.
F. Calculations.
(1) Comprehensive hydrologic and hydraulic design calculations for the pre-development and post-development conditions for the design storms specified in Article
XIV of this Part
2.
(2) When the proposed stormwater management control measures (e.g., infiltration
basins) depends on the hydrologic properties of soils, then a soils
report shall be submitted. The soils report shall be based on on-site
boring logs or soil pit profiles. The number and location of required
soil borings or soil pits shall be determined based on what is needed
to determine the suitability and distribution of soils present at
the location of the control measure.
G. Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of Article
XX.
H. Waiver from submission requirements. The municipal official or board reviewing an application under this Part
2 may, in consultation with the municipal engineer, waive submission of any of the requirements in §
330-68A through
F of this Part
2 when it can be demonstrated that the information requested is impossible to obtain or it would create a hardship on the applicant to obtain and its absence will not materially affect the review process.