The following items shall be included in the SWM site plan:
B.
The City 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 City may either disapprove the submission or require a resubmission, or in the case of minor deficiencies, the City 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 block for the City:
"(City Engineer or designee), on this date (date of signature), has reviewed and hereby certifies that the SWM site plan is in compliance with the Municipal Ordinance No. _____."
E.
The SWM site plan shall provide the following information:
(1)
The overall stormwater management concept for the project.
(2)
A determination of site conditions in accordance with the BMP Manual.[2] A detailed site evaluation shall be completed for projects proposed in mined areas, carbonate geology, or karst topography, and other environmentally sensitive areas, such as brownfields; depending on site conditions, more stringent standards than those in this chapter may be imposed at the discretion of the City Engineer.
(3)
Stormwater runoff design computations, and documentation as specified in this chapter, or as otherwise necessary to demonstrate that the maximum practicable measures have been taken to meet the requirements of this chapter, including the recommendations and general requirements in § 424-301; computations are required for all proposed stormwater management facilities.
(4)
Expected project time schedule.
(5)
A soil erosion and sediment control plan, where applicable, as prepared for and submitted to the approval authority, and in conformance with 25 Pa. Code Ch. 102.
(6)
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 conveyance system that may be affected by the project.
(7)
Plan and profile drawings of all SWM BMPs, including drainage structures, pipes, open channels, and swales.
(8)
SWM site plan shall show the locations of existing and proposed on-lot wastewater facilities and water supply wells.
(9)
The SWM site plan shall include an O&M plan for all existing and proposed physical stormwater management facilities. This plan shall address long-term ownership and responsibilities for O&M as well as schedules and costs for O&M activities.
(10)
The SWM site plan shall include the following additional elements:
(a)
Construction details of all proposed stormwater management facilities.
(b)
A stormwater facility design narrative.
(c)
A signature block containing the name, address, and phone number of the individual responsible for the operation and maintenance plan.
(d)
A drainage area map with time of concentration paths shown.
(e)
Existing contour intervals of two feet.
(f)
All existing features on the property and within 50 feet of property.
(g)
Floodplain and floodway limits.
(h)
Proposed structures and proposed grades.
(i)
Soil boundary lines and descriptions.
(j)
Date of submission, north arrow, graphic scale, call before you dig note and reference number, location map, name of development, name and address of property owner, and individual preparing the SWM site plan.
(k)
Existing and proposed easements.
(l)
Statement signed by landowner stating that they cannot alter any stormwater management facility without prior permission of the City.
(11)
A justification must be included in the SWM site plan if BMPs other than green infrastructure methods and LID practices are proposed to achieve the volume, rate and water quality controls under this chapter.