For any of the activities regulated by this chapter and not eligible for the exemptions provided in §
93-11, the 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 has received written approval of an SWM site plan from the Borough.
The SWM site plan and SWM site report shall consist of all applicable
calculations, maps, and plans. All SWM site plan materials shall be
submitted to the Borough in a format that is clear, concise, legible,
neat and well organized; otherwise, the SWM site plan shall be rejected.
Appropriate sections from Steelton Borough's Subdivision and
Land Development chapter, and other applicable local ordinances, shall be followed
in preparing the SWM site plan.
A. SWM site plan shall include (but not be limited to):
(1) Plans no larger than twenty-four-inch by thirty-six-inch sheets and
in a form that meets the requirements for recording in the office
of the Recorder of Deeds of Dauphin County.
(2) The name of the development; name and location address of the property
site; name, address, and telephone number of the applicant/owner of
the property; and name, address, telephone number, e-mail address,
and engineering seal of the individual preparing the SWM site plan.
(3) The date of submission and dates of all revisions.
(4) A graphical and written scale on all drawings and maps.
(5) A North arrow on all drawings and maps.
(6) A location map at a minimum scale of one inch equals 1,000 feet.
(7) Metes and bounds description of the entire tract perimeter.
(8) Existing and final contours at intervals of two feet.
(9) Existing waterbodies within the project area, including streams,
lakes, ponds, field delineated wetlands or other bodies of water,
sinkholes, flood hazard boundaries (FEMA delineated floodplains and
floodways), areas of natural vegetation to be preserved, the total
extent of the upstream area draining through the site, and overland
drainage paths.
(10)
The location of all existing and proposed utilities, on-lot
wastewater facilities, water supply wells, sanitary sewers, and water
lines on and within 50 feet of property lines.
(11)
A key map showing all existing man-made features beyond the
property boundary that may be affected by the project.
(12)
Soil names and boundaries with identification of the hydraulic
soil group classification.
(13)
The proposed limit of disturbance line and associated proposed
disturbed acres.
(14)
Proposed structures, roads, paved areas, and buildings, including
plans and profiles of roads and paved areas and floor elevations of
buildings.
(15)
Horizontal alignment, vertical profiles, and cross sections
of all open channels, pipes, swales and other BMPs.
(16)
The location and clear identification of the nature of permanent
stormwater BMPs.
(17)
The location of all erosion and sedimentation control facilities.
(18)
A minimum twenty-foot wide access easement around all stormwater
management facilities that would provide ingress to and egress from
a public right-of-way. In lieu of providing an easement to the public
right-of-way, a note may be added to the plan granting the Borough
or their designees access to all easements via the nearest public
right-of-way.
(19)
Construction details for all drainage and stormwater BMPs.
(20)
Construction details of any improvements made to sinkholes.
(21)
Identification of short-term and long-term ownership, operations,
and maintenance responsibilities.
(22)
Notes and statements.
(a)
A statement, signed by the landowner, acknowledging that the
stormwater BMPs are fixtures that cannot be altered or removed without
prior approval by Steelton Borough.
(b)
A statement referencing the operation and maintenance (O&M)
agreement and stating that the O&M agreement is part of the SWM
site plan.
(c)
A note indicating that record drawings will be provided for
all stormwater management facilities prior to occupancy, or the release
of financial security.
(d)
The following signature block for the qualified professional
preparing the SWM site plan:
"I, __________, hereby certify that the Stormwater Management
Site Plan meets all design standards and criteria of the Steelton
Borough's Stormwater Management Chapter."
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(e)
The following signature block for the qualified professional
preparing the SWM site plan:
"I, __________, hereby certify that there (are/are not) wetlands
on the subject property, the proposed project (will/will not) impact
off-site wetlands, and permits (are/are not) required from the state
or federal government."
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B. SWM site report shall include (but not be limited to):
(1) The name of the development; name and location address of the property
site; name, address, and telephone number of the applicant/owner of
the property; and name, address, telephone number, e-mail address,
and engineering seal of the individual preparing the SWM site report.
(2) Project description narrative, including expected project time schedule.
(3) Location map showing the project site.
(4) Drainage area maps for all watersheds and inlets depicting the time
of concentration paths.
(5) A detailed description of the existing site conditions. A detailed
site evaluation shall be completed for projects proposed in areas
of carbonate geology or karst topography, and other environmentally
sensitive areas such as brownfields.
(6) Complete hydrologic, hydraulic and structural computations, calculations,
assumptions, and criteria for the design of all stormwater BMPs.
(7) Description of, justification, and actual field results for infiltration
testing with respect to the type of test and test location for the
design of infiltration BMPs.
(8) Calculations showing the total drainage area and impervious area
loading rates to each BMP.
(9) 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 collection system that may receive runoff
from the project site.
(10)
Description of the proposed changes to the land surface and
vegetative cover, including the type and amount of impervious area
to be added.
(11)
All applicable worksheets from Chapter 8 of the BMP Manual when
establishing volume controls.
(12)
Identification of short-term and long-term ownership, operation,
and maintenance responsibilities as well as schedules and costs for
inspection and maintenance activities for each permanent stormwater
or drainage BMP, including provisions for permanent access or maintenance
easements.
C. Supplemental information to be provided prior to recording of the
SWM site plan, as applicable:
(1) Signed and executed operations and maintenance agreement (Appendix
A).
(2) Signed and executed easements, as required for all on-site and off-site
work.
(3) An erosion and sedimentation control plan and approval letter from
the Dauphin County Conservation District.
(5) Permits from PADEP and ACOE.
(7) A wetland delineation report.
(8) A highway occupancy permit from PennDOT when utilization of a PennDOT
storm drainage system is proposed or when proposed facilities would
encroach onto a PennDOT right-of-way.
A modification to a submitted SWM site plan and report for a
development site that involves a change in stormwater management facilities
or techniques, or that involves the relocation or redesign of stormwater
management facilities, or that is necessary because soil or other
conditions are not as stated on the SWM site plan as determined by
the Borough, shall require a resubmission of the modified SWM site
plan in accordance with this chapter.
A disapproved SWM site plan and report may be resubmitted with
the revisions addressing the Borough's concerns documented in
writing, to the Borough in accordance with this chapter. The applicable
Borough review fee must accompany a resubmission of a disapproved
SWM site plan and report.
The Borough's approval of an SWM site plan and report 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
Borough 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 Borough signs the approval for an SWM site
plan. If stormwater management facilities included in the approved
SWM site plan have not been constructed, or if a record drawing of
these facilities has not been approved within this time, then the
Borough may consider the SWM site plan disapproved and may revoke
any and all permits or approvals.