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,
or the commencement of any land disturbance activity may not proceed
until the applicant or his/her agent has received written approval
of a drainage plan from New Hope Borough.
The drainage plan shall consist of all applicable
calculations, maps, and plans. A note on the maps shall refer to the
associated computations and erosion and sedimentation control plan
by title and date. The cover sheet of the computations and erosion
and sedimentation control plan shall refer to the associated maps
by title and date. All drainage plan materials shall be submitted
to New Hope Borough in a format that is clear, concise, legible, neat,
and well organized; otherwise, the drainage plan shall be disapproved
and returned to the applicant. The following items shall be included
in the drainage plan:
A. General.
(1) General description of project.
(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.
(4) An erosion and sediment control plan, including all
reviews and approvals by the Conservation District.
(5) A general description of nonpoint source pollution
controls.
B. Drainage plans/maps. Drainage plans/maps of the project
area shall be submitted on twenty-four-inch by thirty-six-inch sheets
and shall be prepared in a form that meets the requirements for recording
at the offices of the Recorder of Deeds of Bucks County. The contents
of the drainage plans/maps shall include, but shall not be limited
to the following.
(1) The location of the project relative to highways,
municipalities, or other identifiable landmarks.
(2) Existing contours at intervals of two feet.
(3) Existing streams, lakes, ponds, or other bodies of
water within the project area.
(4) Other physical features, including flood hazard boundaries,
sinkholes, streams, existing drainage courses, 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) An overlay showing soil names and boundaries.
(7) Proposed changes to the land surface and vegetative
cover, including limits of earth disturbance and the type and amount
of impervious area that would be added.
(8) Proposed structures, roads, paved areas, and buildings.
(9) Final contours at intervals of two feet.
(10)
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.
(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.
(19)
A minimum twenty-foot-wide, or greater width
as recommended by the Municipal Engineer, access easement 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 sedimentation
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 chapter.
(22)
A statement, signed by the landowner, acknowledging
the stormwater management system to be a permanent fixture that can
be altered or removed only after approval of a revised plan by the
municipality, which shall be recorded with the record plan and which
shall be applicable to all future landowners.
(23)
The following signature block for the Design
Engineer:
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(Design Engineer), on this date (date of signature),
has reviewed and hereby certifies that the Drainage Plan meets all
design standards and criteria of the Delaware River South Watershed
Act 167 Stormwater Management Ordinance.
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(24)
The plan shall contain a notation that states
the approval of the development is conditioned upon the applicant
agreeing to be responsible for all repairs and maintenance of the
stormwater management facilities, and permitting access to such facilities
deemed critical to public welfare, for inspection at any reasonable
time by the Borough or its designee. This Stormwater Maintenance Agreement
shall be in writing, as prepared by the Borough Solicitor, for recording.
The failure of the applicant to properly maintain any stormwater management
facility shall be construed to be a violation of this chapter and
shall be declared to be a public nuisance, subjecting the violator
to any and all penalties provided by law.
C. Supplemental information.
(1) A written description of the following information
shall be submitted:
(a)
The overall stormwater management concept for the project designed in accordance with §
228-8 herein.
(b)
Stormwater runoff computations as specified
in this chapter.
(c)
Stormwater management techniques to be applied
both during and after development.
(d)
Expected project time schedule.
(e)
Development stages (project phases) if so proposed.
(f)
An operation and maintenance plan in accordance with §
228-30 of this chapter.
(2) A soil erosion and sedimentation control plan, where
applicable, including all reviews and approvals, as required by DEP.
(3) A geologic assessment of the effects of runoff on
sinkholes as specified in this chapter.
(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) A 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.
For all activities regulated by this chapter, the steps below shall be followed for submission. For any activities that require a DEP Joint Permit Application and are regulated under Chapter
105 (Dam Safety and Waterway Management) or Chapter 106 (Floodplain Management) of DEP's Rules and Regulations, require a PennDOT Highway Occupancy Permit, or require any other permit under applicable state or federal regulations, the proof of application for that and the permit(s) shall be part of the plan. The plan shall be coordinated with the state and federal permit process.
A. The drainage plan shall be submitted by the applicant
as part of the preliminary plan submission for the regulated activity.
B. A minimum of four copies of the drainage plan shall
be submitted.
C. Distribution of the drainage plan will be as follows.
(1) Two or more copies to the municipality accompanied
by the requisite municipal review fee, as specified in this chapter.
(2) One copy to the Municipal Engineer.
(3) One copy to the Bucks County Planning Commission.
A disapproved drainage plan may be resubmitted, with revisions addressing the Municipal Engineer's concerns documented in writing, to New Hope Borough in accordance with §
228-21 of this chapter and distributed accordingly and shall be subject to review as specified in §
228-22 of this chapter. The applicable New Hope Borough filing fee and escrow deposit amount must accompany resubmission of a disapproved drainage plan.
[Added 9-20-2022 by Ord. No. 2022-04]
A. If the municipality determines that any requirement under this chapter cannot be achieved for a particular regulated activity, the municipality may, after an evaluation of alternatives, approve measures other than those in this chapter, subject to the following Subsections
B and
C.
B. Waivers
or modifications of the requirements of this chapter may be approved
by the municipality if enforcement will exact undue hardship because
of peculiar conditions pertaining to the land in question, provided
that the modifications will not be contrary to the public interest
and that the purpose of the chapter is preserved. Cost or financial
burden shall not be considered a hardship. Modification may be considered
if an alternative standard or approach will provide equal or better
achievement of the purpose of the chapter. A request for modifications
shall be in writing and accompany the stormwater management site plan
submission. The request shall provide the facts on which the request
is based, the provision(s) of the chapter involved and the proposed
modification.
C. No waiver
or modification of any regulated stormwater activity involving earth
disturbance greater than or equal to one acre may be granted by the
municipality unless that action is approved in advance by the Department
of Environmental Protection (DEP) or the delegated county conservation
district.