The following items shall be included in the SWM Site Plan:
A.
Appropriate sections from the municipal's Subdivision and Land Development Ordinance, and other applicable local ordinances, shall be followed in preparing the SWM Site Plans.
B.
The Municipality shall not approve any SWM Site Plan that is deficient in meeting the requirements of this chapter. At its sole discretion and in accordance with this article, when a SWM Site Plan is found to be deficient, the Municipality may either disapprove the submission and require a resubmission, or in the case of minor deficiencies, the Municipality may accept submission of modifications.
C.
Provisions for permanent access or maintenance easements for all physical SWM BMPs, such as ponds and infiltration structures, as necessary to implement the Operation and Maintenance (O&M) Plan discussed in Subsection E(9) below.
D.
The following signature blocks:
(1)
"I, (Borough Official [Engineer]), on this date (Signature Date), has reviewed and hereby certifies that the SWM Site Plan meets all design standards and criteria of the Marietta Borough Stormwater Management Ordinance."
(2)
A statement, signed by all Landowners, acknowledging that the stormwater BMPs are fixtures that cannot be altered or removed without prior approval by the Borough.
"Acknowledgment of Permanence of BMPs: | |
I, the undersigned hereby represent that no person shall modify, remove, fill, landscape, or alter any Stormwater Management BMPs, facilities, areas, or structures without the written approval of Marietta Borough. | |
___________________ | ____________________ |
Date | Landowner" |
(3)
A statement, signed by all Landowners, referencing the Operation and Maintenance (O&M) Agreement and stating that the O&M Agreement is part of the stormwater management site plan.
(4)
The following signature block for the Qualified Professional preparing the Stormwater Management Plan:
"I __________, hereby certify that the Stormwater Management Site Plan meets all design standards and criteria of the Marietta Borough Stormwater Management Ordinance. | |
___________________ | __________________________ |
Date | Qualified Professional Signature" |
E.
The SWM Site Plan shall provide the following information:
(1)
Maps or plan sheets. Map(s) or plan sheets of the Site shall be submitted on minimum 24-inch by 36-inch sheets and shall be prepared in a form that meets the requirements for recording at the Lancaster County Office of the Recorder of Deeds and the requirements of the Operation and Maintenance (O&M) Plan and O&M Agreement (Article VII). If the SALDO has additional or more stringent criteria than this chapter, then the SALDO criteria shall also apply. Unless otherwise approved by the Municipal Engineer, the contents of the maps or plan sheets shall include, but not be limited to:
(a)
A listing of all regulatory approvals required for the proposed project and the status of the review and approval process for each. Final approval or adequacy letters must be submitted to the Municipality prior to (or as a condition of) the Municipality's issuing final approval of the SWM Site Plan. Proof of application or documentation of required permit(s) or approvals for the programs listed below shall be part of the SWM Site Plan, if applicable:
(b)
PennDOT Highway Occupancy Permit;
(c)
Erosion and Sediment Control Plan letter of adequacy; and
(d)
Any other permit under applicable State or Federal regulations.
(2)
A location map, with a scale of one inch equals 2,000 feet or greater, showing the Site location relative to highways, municipal boundaries, or other identifiable landmarks.
(3)
The name of the project, tax parcel number(s), and the names, addresses and phone numbers of the owner of the property, the Applicant, and firm preparing the plan.
(4)
Signature and seal of the qualified Licensed Professional(s) responsible for preparation of the maps and plan sheets.
(5)
The date of SWM Site Plan submission and revision dates, as applicable.
(6)
A graphic and written scale of one inch equals no more than 50 feet.
(7)
A north arrow.
(8)
Legal property boundaries, including:
(a)
The total project property boundary and size with distances marked to the nearest foot and bearings to the nearest degree.
(b)
Boundaries, size and description of purpose of all existing easements and deed-restricted areas of the project property, with distances marked to the nearest foot and bearings to the nearest degree.
(9)
Existing natural resources and natural or man-made hydrologic features that are located within the Site or receiving discharge from, or that may otherwise be impacted by, the proposed Regulated Activity, including but not limited to:
(a)
All existing natural resources, hydrologic features and drainage patterns including natural waterways, water bodies, wetlands, streams (intermittent and perennial), ponds, lakes, vernal pools, etc., natural infiltration areas and patterns, areas of significant natural evapotranspiration, and other water features and aquatic resources.
(b)
Any existing man-made drainage features, BMPs, Conveyances, facilities, open channels, swales, drainage patterns, or other flood, stormwater or drainage control features.
(c)
For the Site, discharge points and locations of concentrated flows and their drainage areas.
(d)
For named waters, show names and their watershed boundaries within the Site.
(f)
For the water bodies, streams and wetlands identified in Subsection E(9)(a), label or otherwise show the following attributes, if applicable:
(g)
Areas that are part of the Pennsylvania Natural Diversity Inventory (PNDI) and a list of potential impacts and clearances received (for Regulated Activities involving one acre or more proposed Earth Disturbance).
(h)
Woods, vegetated riparian buffers and other areas of natural vegetation.
(i)
Topography using contours (with elevations based on established bench marks) at intervals of two feet. In areas of slopes greater than 15% [or other at option of Municipality] five-foot contour intervals may be used. The datum used and the location, elevation and datum of any bench marks used shall be shown.
(j)
Areas classified by the Municipality as steep slopes.
(k)
Soil names and boundaries, general type of soils with Hydrologic Soil Group noted, and in particular note areas most conducive to infiltration BMPs, such as groups A and B, etc., estimated permeabilities in inches per hour, and location and other results of all soil tests and borings.
(l)
If present, areas with underlying carbonate geologic units, existing sinkholes, subsidence or other Karst features, and any associated groundwater recharge areas with increased vulnerability to contamination.
(m)
Any contaminated surface or subsurface areas of the Site.
(n)
Water supply wells.
[1]
Location of existing well(s) on the project property and delineation of the(ir) recharge area(s) (if known), or a 50-foot diameter assumed recharge area;
[2]
Location of existing well(s) within 50 feet beyond the boundary of the project property boundary (if public water supply is proposed for the Regulated Activity); and
(o)
Current FEMA 100-year floodplain boundaries, elevations, and Floodway boundaries for any Special Flood Hazard Areas on or within 100 inches of the property.