The drainage plan shall consist of a general description of
the project, including sequencing items described in this Part 1,
calculations, maps and plans and a CUTR when required. A note on the
maps shall refer to the associated computations and erosion and sediment
control plan by title and date. The cover sheet of the computations
and erosion and sediment control plan shall refer to the associated
maps by title and date. All drainage plan materials shall be submitted
to the municipality in a format that is clear, concise, legible, neat,
and well organized; otherwise, the drainage plan shall not be accepted
for review and shall be returned to the applicant. The following items
shall be included in the drainage plan:
A. General. A stormwater management report with narrative shall be provided
to the municipality and shall include but not be limited to the following:
(1) General description of the project, including those areas described in §
124-10 and a statement of the total earth disturbance.
(2) General description of permanent stormwater management techniques,
including construction specifications of the materials to be used
for stormwater management facilities.
(3) Complete hydrologic, hydraulic, and structural computations for all
stormwater management facilities. Include all engineering assumptions
and criteria utilized in the design.
(4) An erosion and sediment control plan, including all reviews and letters
of adequacy obtained by the Conservation District and/or proofs of
applications for same.
(5) A general description of nonpoint source pollution controls.
(6) A consumptive use tracking report when required by this Part 1.
(7) Expected project time schedule, including anticipated start and completion
dates. Include tentative calendar dates for the installation of the
control measures and structures.
(8) A proposed schedule of inspections which will be performed by the
applicant's engineer or designee and monitored by the Municipal Engineer
or the Municipal designee.
(9) A maintenance program for all stormwater management, erosion and
sediment pollution controls, and nonpoint pollution controls for both
the construction period and after construction is complete, including
the responsible party. This program must include the proposed ownership
of the permanent controls and details for financial responsibility
for any required maintenance.
(10)
A description of federal or state agency involvement with the
project (i.e., United Stated Army Corps of Engineers, DEP).
(11)
Training and experience of person(s) preparing the plan.
B. Maps. Map(s) of the project area shall be submitted to the municipality
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 Office
of the Recorder of Deeds of Monroe County. If the Subdivision and
Land Development Ordinance (SALDO) has more stringent criteria, then the more stringent criteria
shall apply. The contents of the map(s) shall include, but not be
limited to:
(1) The location of the project relative to highways, municipalities
or other identifiable landmarks.
(2) Existing and final contours at intervals of two feet. In areas of
steep slopes (greater than 15%), five-foot contour intervals may be
used.
(3) Existing streams, lakes, ponds or other waters of the commonwealth
within the project area.
(4) Other physical features, including flood hazard boundaries, buffers,
existing drainagecourses, areas of natural vegetation to be preserved,
and the total extent of the upstream area draining through the site.
(5) The locations of all existing and proposed utilities, sanitary sewers,
and water lines within 50 feet of property lines.
(6) The location(s) of public water supply wells and surface water intakes
as well as their source water protection areas.
(7) Soil names and boundaries.
(8) Limits of earth disturbance, including the type and amount of impervious
area that would be added.
(9) Existing and proposed structures, roads, paved areas, and buildings.
(10)
The name of the development, the name and address of the applicant
of the property, and the name of the individual or firm preparing
the plan.
(12)
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.
(14)
The total tract boundary and size with distances marked to the
nearest foot and bearings to the nearest degree.
(15)
Existing and proposed land use(s).
(16)
A key map showing all existing man-made features beyond the
property boundary that would be affected by the project.
(17)
Location of all open channels.
(18)
Overland drainage patterns and swales. All travel paths with
segments for the time of concentration (including travel time increments)
shall be clearly indicated and referenced on the plan.
(19)
A fifteen-foot-wide access easement to and around all stormwater
management facilities that would provide ingress to and egress from
a public right-of-way.
(20)
The location of all erosion and sediment control facilities.
(21)
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 Part 1.
(22)
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 E & S plan must be submitted to the Conservation
District for a determination of adequacy.
(23)
A certificate, signed and sealed by the stormwater designer
registered in the commonwealth of Pennsylvania and qualified under
all applicable state and local laws to perform such duties, indicating
the compliance of the design of the stormwater management facilities
and concepts with the provisions of this Part 1. The following signature
block for the designer:
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"I, ____________ (designer), on this date ______ (date of signature),
hereby certify that the drainage plan meets all design standards and
criteria of the Brodhead and McMichaels Creek Watershed Act 167 Stormwater
Management Ordinance."
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C. Supplemental information.
(1) A written description of the following information shall also be
submitted to the municipality:
(a)
The overall stormwater management concept for the project designed
in accordance with this Part 1.
(b)
Stormwater runoff computations as specified in this Part 1.
(c)
Stormwater management techniques to be applied both during and
after development.
(d)
Development stages (project phases) if so proposed.
(e)
An operation and maintenance plan in accordance with this Part
1.
(2) An erosion and sediment control plan.
(3) Completed consumptive use tracking report when required by this Part
1.
(4) 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.
(5) Declaration of adequacy and highway occupancy permit from the PennDOT
District Office when utilization of a PennDOT storm drainage system
is proposed.
D. Stormwater management facilities.
(1) All stormwater management facilities must be located on a plan and
described in detail.
(2) When groundwater recharge methods 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.
The municipality shall require receipt of a complete drainage plan, as specified in this Part
1. For any regulated activities that require an NPDES permit for stormwater discharges from construction activities or a PaDEP joint permit application or a PennDOT highway occupancy permit, or any other permit under applicable state or federal regulations, or regulated under Chapter 105, Dam Safety and Waterway Management, or Chapter
106, Floodplain Management, of PaDEP's rules and regulations, the proof of application for said permit(s) and/or approvals shall be part of the drainage plan. The plan shall be coordinated with the state and federal permit process and the municipal SALDO review process.
A. For those regulated activities which require SALDO approval, the
drainage plan and ERSAM shall be submitted by the applicant as part
of the preliminary plan submission.
B. For those regulated activities that do not require SALDO approval,
the drainage plan and ERSAM shall be submitted to the municipality
by the applicant as part of the permit application and in all situations
prior to any construction or land disturbance.
C. Six copies of the drainage plan shall be submitted and distributed
as follows:
(1) Two copies to the municipality accompanied by the requisite municipal
review fee, as specified in this Part 1, and set forth in the professional
services agreement required by this Part 1.
(2) Two copies to the Conservation District.
(3) One copy to the Municipal Engineer.
(4) One copy to the County Planning Commission.
D. Any submissions found 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.
E. Notwithstanding any other provision of this article, any plan required
to be submitted by this article shall also include a copy on computer-readable
media in either auto-cad R-14, auto-cad 2000, TIFF image format or
ESRI Arc Infro\\arcview, with all required media containing Pennsylvania
State Plane N, NAD 83 Coordinates, or such other electronic, digital
or computer-readable media or format as designated from time to time
by resolution duly enacted by the Board of Supervisors.
A disapproved drainage plan may be resubmitted, with the revisions
addressing the Municipal Engineer's concerns documented in writing
and addressed to the Municipal Secretary in accordance with this Part
1 and distributed accordingly and be subject to review as specified
in this Part 1. The applicable municipal review and inspection fee
must accompany a resubmission of a disapproved drainage plan.