A.
The SWM site plan shall consist of a narrative and all applicable
calculations, maps, plans and supplemental information necessary to
demonstrate compliance with this chapter.
B.
All landowners of land included in the SWM site plan shall be required
to execute all applications and final documents.
C.
All SWM site plans shall be prepared by a qualified person.
D.
Where the regulated activity constitutes subdivision or land development
as hereinabove defined, the SWM site plan shall be submitted with
and form an integral part of the plans required under the Subdivision
and Land Development Ordinance.
A.
The plan should be clearly and legibly drawn.
B.
If the plan is prepared in two or more drawing sheets, a key map
showing the location of the sheets and a match line shall be placed
on each sheet.
C.
Each sheet shall be numbered to show the relationship to the total
number of sheets in the plan (e.g., Sheet 1 of 5).
D.
Drawings or maps of the project area shall be drawn at one inch equals
50 feet or larger scale (i.e., one inch equals 40 feet, one inch equals
30 feet, etc.) and shall be submitted on twenty-four-inch-by-thirty-six-inch
sheets.
E.
SWM site plans shall be prepared in a form that meets the requirements
for recording for the Office of the Recorder of Deeds of Lancaster
County.
F.
The total development site boundary and size with distances marked
to the nearest foot and bearings to the nearest degree.
The following items shall be included in the SWM site plan:
A.
The date of the SWM site plan and latest revision, graphic scale,
written scale and North arrow.
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.
C.
The file or project number assigned by the firm that prepared the
plan.
D.
A statement, signed by the landowner, acknowledging the SWM facilities
to be permanent fixtures that cannot be altered or removed unless
a revised plan is approved by the Borough.
E.
The following signature block for the Borough:
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Borough of Marietta SWM Site Plan Approval Certification
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At a meeting on __________, 20_____, the ___________________________
Borough of Marietta approved this project, and all conditions have
been met. This approval includes the complete set of plans and information
that are filed with the Borough of Marietta in File No. __________,
based upon its conformity with the standards of the Borough of Marietta
Stormwater Management Ordinance.
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governing body Signature
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governing body Signature
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F.
For SWM facilities located off-site,
G.
A note informing the owner that the Borough shall have the right
of entry for the purposes of inspecting all stormwater conveyance,
treatment, or storage facilities.
H.
A location map, drawn to a scale of a minimum of one inch equals
2,000 feet, relating the plan to municipal boundaries, at least two
intersections of road center line or other identifiable landmarks.
I.
Existing features.
(1)
In areas of disturbance, contours at intervals of one or two feet.
In areas of steep slopes (greater than 15%) and areas undisturbed,
five-foot contour intervals may be used.
(2)
The locations of all existing utilities (including on-lot disposal
systems and wells), sanitary sewers, and water lines and associated
easements.
(3)
Physical features, including flood hazard boundaries, wetlands, sinkholes,
streams, lakes, ponds and other water bodies, existing drainage courses,
karst features, areas of native vegetation, including trees greater
than six inches diameter at breast height, woodlands, other environmentally
sensitive areas and the total extent of the upstream area draining
through the development site.
(4)
An overlay showing soil names and boundaries.
(5)
All existing man-made features within 200 feet of the development
site boundary.
J.
Proposed features.
(1)
Changes to the land surface and vegetative cover, including final
proposed contours at intervals of one or two feet in areas of disturbance.
In areas of steep slopes (greater than 10%) and areas undisturbed,
five-foot contour intervals may be used.
(2)
Proposed structures, roads, paved areas, buildings and other impervious
and semi-impervious areas.
(3)
The location of any proposed on-lot disposal systems, replacement
drainfield easements, and water supply wells.
(4)
A note indicating existing and proposed land use(s).
(5)
Plan and profile drawings of all proposed SWM facilities, including
BMPs, drainage structures, pipes, open channels, and swales.
(6)
Where pervious pavement is to be installed, pavement material and
construction specifications shall be included.
(7)
The location of all existing and proposed easements, including drainage
easements, access easements and riparian corridor easements.
K.
The location of all E&S control facilities.
A.
General description of the development site, including a description
of existing natural and hydrologic features and any environmentally
sensitive areas.
B.
General description of the overall SWM concept for the project, including
a description of permanent SWM techniques, nonstructural BMPs to be
employed and construction specifications of the materials to be used
for structural SWM facilities. The narrative shall include a description
of any treatment trains and how the facilities are meant to function
with each other to manage stormwater runoff.
C.
The effect of the project (in terms of runoff volumes, water quality
and peak flows) on adjacent properties and on any existing municipal
stormwater management facilities that may receive runoff from the
development site.
D.
Complete hydrologic, hydraulic, and structural computations for all
SWM facilities.
E.
Expected project time schedule.
A.
In areas of carbonate geology, a detailed geologic evaluation prepared
by a registered professional geologist (PG) must be submitted as part
of the SWM site plan. The report shall include, but not limited to
the following:
B.
An E&S plan, including all approvals, as required by 25 Pa. Code
Chapter 102, shall be provided to the Borough prior to unconditional
final plan approval.
C.
For any activities that require a DEP joint permit application and
are regulated under 25 Pa. Code Chapter 105 or 106, require a PennDOT
highway occupancy permit, or require any other permit under applicable
state or federal regulations, the permit(s) shall be part of the SWM
site plan and must be obtained prior to unconditional final plan approval.
