[Ord. 00075, 4/14/2014, § 17-401]
1. 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.
2. All landowners of land included in the SWM site plan shall be required
to execute all applications and final documents.
3. All SWM site plans shall be prepared by a qualified person.
4. 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 Chapter
22 of the Borough of Akron Code of Ordinances.
[Ord. 00075, 4/14/2014, § 17-402]
1. The plan should be clearly and legibly drawn.
2. 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.
3. Each sheet shall be numbered to show the relationship to the total
number of sheets in the plan (e.g., sheet 1 of 5).
4. 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.
5. 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.
6. The total development site boundary and size with distances marked
to the nearest foot and bearings to the nearest degree.
[Ord. 00075, 4/14/2014, § 17-403]
1. 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:
__________ Borough of Akron SWM site plan Approval Certification
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At a meeting on __________, 20_____, the __________ (Municipal governing body) approved this project. This approval includes the complete set of plans and information that are filed with the Borough in File No. __________, based upon its conformity with the standards of the __________ Chapter 17 of the Borough of Akron Code of Ordinances.
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__________
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__________
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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:
(1)
A note on the plan referencing a recorded stormwater operation
and maintenance (O&M) agreement that indicates the location and
responsibility for maintenance of the off-site facilities.
(2)
All off-site SWM facilities shall meet the performance standards
specified in this chapter.
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-inch 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
overland drainage paths), including final proposed contours at intervals
of one or two feet in areas of disturbance. In areas of steep slopes
(greater than 15%) 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.
(8)
A planting plan shall be provided for all vegetated BMPs in accordance with §
17-301, Subsection
14.
(9)
The construction specifications of the materials to be used
for stormwater management facilities.
K. The location of all E&S control facilities.
[Ord. 00075, 4/14/2014, § 17-404]
1. General description of the development site, including a description
of existing natural and hydrologic features and any environmentally
sensitive areas.
2. 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.
3. 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.
4. Complete hydrologic, hydraulic, and structural computations for all
SWM facilities.
5. Expected project time schedule.
[Ord. 00075, 4/14/2014, § 17-405]
1. 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:
A. The location of the following karst features.
(3)
Lineaments in carbonate areas.
(7)
Ephemeral disappearing streams.
(8)
Bedrock pinnacles (surface or subsurface).
B. A plan for remediation of any identified karst features.
C. Impacts of stormwater management facilities on adjacent karst features,
and impacts of karst features on adjacent stormwater management facilities.
2. 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.
3. For any activities that require a DEP Joint Permit Application and
are regulated under Chapter 105 or Chapter 106, require a Penn DOT
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.
4. An operation and maintenance (O&M) plan that addresses the requirements of §
17-603.
5. Where applicable, a recorded stormwater management agreement for
off-site facilities.
6. Applicant shall identify the number of square feet of impervious
surface coverage for which the stormwater management facilities have
been designed. This number shall be placed in the stormwater management
agreement and declaration of easement referenced elsewhere herein,
and shall also note the actual number of square feet of impervious
surface coverage that is intended to exist following the completion
of construction. To the extent that the designed and implemented facilities
exceed the required stormwater management (in excess of that needed
for the proposed impervious coverage), the property owner (as part
of the property owner's application) shall be given credit in
the future against any additional coverage that the property owner
may apply.