For any of the activities regulated by this chapter, the preliminary
or final approval of subdivision and/or land development plans, the
issuance of any building or occupancy permit, the commencement of
any earth disturbance, or activity may not proceed until the property
owner or applicant or his/her agent has received written approval
of a SWM site plan from the municipality and an approval of an adequate
Erosion and Sediment (E&S) Control Plan review from the municipality
and Bucks County Conservation District as applicable.
The SWM site plan shall consist of a general description of
the project, including calculations, maps, and plans. A note on the
maps shall refer to the associated computations and E&S Control
Plan by title and date. The cover sheet of the computations and E&S
Control Plan shall refer to the associated maps by title and date.
All SWM site plan materials shall be submitted to the municipality
in a format that is clear, concise, legible, neat and well organized;
otherwise, the SWM site plan shall not be accepted for review and
shall be returned to the applicant. The following items shall be included
in the SWM site plan:
A. General.
(1)
General description of the project including plan contents described in Subsection
B of this section.
(2)
General description of proposed SWM techniques to be used for
SWM facilities.
(3)
Stormwater runoff design computations and documentation as specified in this chapter, including Article
III.
(4)
Complete hydrologic and hydraulic computations for all SWM facilities.
(5)
All reviews and letters of adequacy from the Bucks County Conservation
District for the erosion and sedimentation plan as required by the
municipal, county, and state regulations.
(6)
A general description of proposed nonpoint source pollution
controls.
(7)
The SWM site plan application and completed fee schedule form
and associated fee(s) for all regulated activities not already paid
pursuant to the SALDO regulations (Appendix C-1).
(8)
The SWM site plan checklist (Appendix C-2).
(9)
Appropriate sections from Chapter
385, Subdivision and Land Development, and other applicable local ordinances shall be followed in preparing the SWM site plan.
B. Plans. SWM site plan shall provide the following information:
(1)
The overall stormwater management concept for the project.
(2)
A determination of natural site conditions and stormwater management
needs in accordance with the PA BMP Manual. This shall include, but
not be limited to:
(a)
Site features:
[1]
The location of the project relative to highways, municipal
boundaries or other identifiable landmarks.
[2]
The locations of all existing and proposed utilities, sanitary
sewers, and water lines on site and to within 50 feet of property
lines.
[3]
Proposed structures, roads, paved areas, and buildings.
[4]
The total tract boundary and size with distances marked to the
nearest foot and bearings to the nearest degree.
[5]
Plan and profile drawings of all SWM BMPs, including drainage
structures, pipes, open channels, and swales. At a minimum this should
include pre- and post-drainage area maps, an overall post-construction
stormwater management plan, stormwater details sheets, and landscape
plans (if proposing landscaped SWM BMPs, including bioretention facilities,
low-impact development, bioretention, and vegetative basins).
[6]
The locations and minimum setback distances of existing and
proposed on-lot wastewater facilities and water supply wells.
[7]
The location of all erosion and sediment control facilities.
(b)
Natural site conditions:
[1]
An existing resource and site analysis map (ERSAM) showing environmentally sensitive areas including, but not limited to: steep slopes; ponds; lakes; streams; wetlands; hydric soils; hydrologic soil groups A and B; vernal pools; stream buffers; open channels; existing recharge areas; and floodplains. The area of each of these sensitive areas shall be calculated and should be consistent with the runoff volume calculation required pursuant to §
375-303 of this chapter.
[2]
A detailed site evaluation for projects proposed in areas of
frequent flooding, carbonate geology or karst topography, and other
environmentally sensitive areas, such as brownfields and source water
protection areas.
[3]
Existing and proposed contour lines at intervals of two feet,
or one foot as appropriate.
[4]
The total extent of the drainage area upstream from the site
and all downgradient receiving channels, swales and waters to which
stormwater runoff or drainage will be discharged.
(c)
Stormwater runoff design computations and documentation as specified in this chapter, or as otherwise necessary to demonstrate that the maximum practicable measures have been taken to meet the requirements of this chapter, including the recommendations and general requirements in §
375-301.
(d)
The effect of the project (in terms of runoff volumes, water
quality, and peak flows) on surrounding properties and aquatic features
and on any existing stormwater conveyance system that may be affected
by the project.
(3)
The format of the plan shall include the following:
(a)
The expected project time schedule.
(b)
The name of the development, the name and address of the owner
of the property, and the name of the individual or firm preparing
the plan.
(d)
A graphic and written scale of one inch equals no more than
50 feet (a larger scale may be required as determined by the Borough
Engineer).
(f)
An access easement around all stormwater management facilities
is required that would provide ingress to and egress from a public
right-of-way. The size of the easement shall be commensurate with
the maintenance and access requirements determined in the design of
the BMP and as necessary to implement the operation and maintenance
(O&M) plan.
(g)
A key map showing all existing man-made features beyond the
property boundary that would be affected by the project.
(h)
A note on the plan indicating the location and responsibility
for maintenance of stormwater management facilities. All facilities
shall meet the performance standards and design criteria specified
in this chapter.
(i)
The following signature block for the design engineer: "I, (Design
Engineer), on this date (date of signature), hereby certify that the
SWM site plan meets all design standards and criteria of the New Britain
Borough Stormwater Management Ordinance."
(j)
A statement, signed by the applicant, acknowledging that any
revision to the approved SWM site plan must be approved by the municipality
and that a revised E&S plan must be submitted to the Bucks County
Conservation District.
(k)
The following signature block for the municipal official or
designee: "I, (municipal official or designee), on this date (date
of signature), have reviewed and hereby certify that the SWM site
plan meets all design standards and criteria of the New Britain Borough
Stormwater Management Ordinance."
(4)
A soil erosion and sediment control plan, where applicable,
as prepared for and submitted to the approval authority.
(5)
The SWM site plan shall include an operations and maintenance
(O&M) plan for all existing and proposed physical stormwater management
facilities. This plan shall address long-term ownership and responsibilities
for O&M as well as schedules and costs for O&M activities.
The municipality requires submission of a complete SWM site
plan, as specified in this chapter.
A. Proof of application or documentation of required permit(s) or approvals
for the programs listed below shall be part of the plan:
(1)
NPDES permit for stormwater discharges from construction activities.
(2)
Any other permit under applicable state or federal regulations.
B. Six copies of the SWM site plan shall be submitted by the applicant
to the following agencies:
(1)
Two copies to the municipality accompanied by the requisite
municipal review fee, as specified in this chapter.
(2)
One copy to the Municipal Engineer (where applicable).
(3)
Two copies to the Bucks County Conservation District, if required.
(4)
One copy to the Bucks County Planning Commission if the regulated
activity is also required to submit a subdivision and/or land development
plan to the County Planning Commission in accordance with the Pennsylvania
Municipal Planning Code.
C. Any submissions to the agencies listed above that are found to be
incomplete shall not be accepted for review and shall be returned
to the applicant with a notification in writing of the specific manner
in which the submission is incomplete.
D. Additional copies shall be submitted as requested by the municipality
or PADEP.
A modification to a submitted SWM site plan that involves a
change in SWM BMPs or techniques, or that involves the relocation
or redesign of SWM BMPs or that is necessary because soil or other
conditions are not as stated on the SWM site plan as determined by
the municipality shall require a resubmission of the modified SWM
site plan in accordance with this article.
A disapproved SWM site plan may be resubmitted, with the revisions
addressing the municipality's concerns, to the municipality in
accordance with this article. The applicable review fee must accompany
a resubmission of a disapproved SWM site plan.
The municipality's approval of an SWM site plan authorizes the regulated activities contained in the SWM site plan for a maximum term of validity of five years following the date of approval. The municipality may specify a term of validity shorter than five years in the approval for any specific SWM site plan. Terms of validity shall commence on the date the municipality signs the approval for an SWM site plan. If an approved SWM site plan is not completed according to this §
375-407 within the term of validity, then the municipality may consider the SWM site plan disapproved and may revoke any and all permits. SWM site plans that are considered disapproved by the municipality shall be resubmitted in accordance with §
375-406.