[Ord. 1018, 12/16/2013]
1.
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 erosion and sediment (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.
2.
The following items shall be included in the SWM site plan:
A.
General:
(1)
General description of the project.
(2)
General description of proposed stormwater management techniques,
including construction specifications of the materials to be used
for stormwater management facilities (required for modified SWM site
plan, per Table 106.1).
(3)
Complete hydrologic, hydraulic, and structural computations
for all stormwater management facilities.
(4)
An erosion and sediment control plan, including all reviews
and letters of adequacy from the Conservation District (required for
modified SWM site plan, per Table 106.1).
(5)
A general description of proposed non-point-source pollution
controls.
(6)
The SWM site plan application and completed fee schedule form
and associated fee.
(7)
The SWM site plan checklist.
B.
Maps:
(1)
Prepare 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, vernal pools,
stream buffers, floodplains and hydrologic soil groups. Land development,
existing recharge areas, and any other requirements specifically outlined
in the municipal SALDO also shall be included.
(2)
Map(s) of the project area shall be submitted on twenty-four-inch
by thirty-six-inch sheets and/or shall be prepared in a form that
meets the requirements for recording at the offices of the Recorder
of Deeds of Montgomery County. If the SALDO has more-stringent criteria
than this chapter, then the more-stringent criteria shall apply. The
contents of the map(s) shall include, but not be limited to:
(a)
The location of the project relative to highways, municipal
boundaries, or other identifiable landmarks.
(b)
Existing contours at intervals of two feet or less. In areas
of slopes greater than 10%, five-foot contour intervals may be used.
(c)
Existing streams, lakes, ponds, or other waters of the commonwealth
within the project area.
(d)
Other physical features, including flood hazard boundaries,
stream buffers, existing drainagecourses, areas of natural vegetation
to be preserved, and the total extent of the upstream area draining
through the site.
(e)
The locations of all existing and proposed utilities, sanitary
sewers, and water lines within 50 feet of property lines.
(f)
A map, which may be done as an overlay, showing soil names and
boundaries.
(g)
Limits of earth disturbance, including the type and amount of
impervious area that is proposed (required for modified SWM site plan,
per Table 106.1).
(h)
Proposed structures, roads, paved areas, and buildings (required
for modified SWM site plan, per Table 106.1).
(i)
Final contours at intervals of two feet or less. In areas of
steep slopes (greater than 15%), five-foot contour intervals may be
used.
(j)
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.
(k)
The date of submission (required for modified SWM site plan,
per Table 106.1).
(l)
A graphic and written scale of one inch equals no more than
50 feet; for tracts of 20 acres or more, the scale shall be one inch
equals no more than 100 feet.
(m)
A North arrow.
(n)
The total tract boundary and size, with distances marked to
the nearest foot and bearings to the nearest degree.
(o)
Existing and proposed land use(s).
(p)
A key map showing all existing man-made features beyond the
property boundary that would be affected by the project.
(q)
Location of all open channels.
(r)
Overland drainage patterns and swales.
(s)
A fifteen-foot-wide access easement around all stormwater management
facilities to provide ingress to and egress from a public right-of-way.
(t)
The location of all erosion and sediment control facilities.
(u)
A note on the plan indicating the location and responsibility
for maintenance of stormwater management facilities that would be
located off site. All off-site facilities shall meet the performance
standards and design criteria specified in this chapter.
(v)
A statement, signed by the applicant, acknowledging that any
revision to the approved drainage plan must be approved by the municipality
and that a revised erosion and sediment control plan must be submitted
to the municipality or Conservation District for approval (required
for modified SWM site plan, per Table 106.1).
(w)
The following signature block for the design engineer:
"I, (design engineer), on this date (date of signature), hereby
certify that the drainage plan meets all requirements of the Department
of Environmental Protection's (DEP's) regulations and this
ordinance."
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C.
Supplemental Information to be Submitted to the Municipality:
(1)
The following information shall be submitted by the applicant
and shall include:
(a)
The overall stormwater management concept for the project designed.
(b)
Stormwater runoff computations required by this chapter.
(c)
Stormwater management techniques to be applied both during and
after development.
(d)
Expected project time schedule.
(e)
Development stages or project phases, if so proposed.
(2)
An E&S control plan.
(3)
A description of the effect of the project (in terms of runoff
volumes and peak flows) on adjacent properties and on any existing
municipal stormwater collection system that may receive runoff from
the project site.
(4)
An approved highway occupancy permit from the Pennsylvania Department
of Transportation (PennDOT) district office when drainage towards
PennDOT property is proposed.
D.
Stormwater Management Facilities:
(1)
All stormwater management facilities must be located on a plan
and described in detail (required for modified SWM site plan, per
Table 106.1).
(2)
When infiltration measures such as seepage pits, beds, or trenches
are used, the locations of existing and proposed septic tank infiltration
areas and wells must be shown.
(3)
All calculations, assumptions, and criteria used in the design
of the stormwater management facilities must be shown (required for
modified SWM site plan, per Table 106.1).
[Ord. 1018, 12/16/2013]
1.
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:
B.
When the SWM site plan is submitted as part of a subdivision or land
development application, the submission requirements in the SALDO
shall be followed. When the SWM site plan is not part of a subdivision
or land development application, one electronic copy in PDF format
on CD or other acceptable media and six hard copies of the SWM site
plan shall be submitted and distributed as follows:
C.
Any submissions to the agencies listed above that are found to be
incomplete may not be accepted for review and may be returned to the
applicant with a notification, in writing, of the manner in which
the submission is incomplete.
D.
Additional copies shall be submitted as requested by the municipality,
County Conservation District, or DEP.
[Ord. 1018, 12/16/2013]
1.
The SWM site plan must be consistent with this chapter. Any SWM site
plan found incomplete may be returned to the applicant.
2.
The municipality will notify the applicant, in writing, within 45
days, whether the SWM site plan is approved or disapproved. If the
SWM site plan involves a subdivision and land development plan, the
notification period shall be in accordance with the time periods noted
in the SALDO. If a longer notification period is provided by other
statute, regulation, or ordinance, the applicant will be so notified
by the municipality. If the municipality disapproves the SWM site
plan, the municipality shall cite the reasons for disapproval in writing.
[Ord. 1018, 12/16/2013]
A modification to a submitted SWM site plan that involves a
change in BMPs or techniques, or that involves the relocation or redesign
of 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 modification and resubmission of the SWM site plan in
accordance with this Part.
[Ord. 1018, 12/16/2013]
A disapproved SWM site plan may be resubmitted, with the revisions
addressing the municipality's concerns, to the municipality in
accordance with this Part. The applicable review fees must accompany
a resubmission of a disapproved SWM site plan.