A. 
Appropriate sections from Chapter 360, Subdivision and Land Development, and other applicable local ordinances shall be followed in preparing the SWM site plans. In instances where the municipality lacks subdivision and land development regulations, the content of SWM site plans shall follow the Allegheny County Subdivision and Land Development Ordinance.
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. 
The following items shall be included in the SWM site plan:
(1) 
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 C(9) below.
(2) 
The following signature block for the municipality: "The Municipal Engineer, on this date September 19, 2018, has reviewed and hereby certifies that the SWM site plan meets all design standards and criteria of the Municipal Ordinance No. Ordinance 4 of 2018, except where waivers have been granted as noted on the plan. The review is based on a survey and plan prepared by others and assumes that all information is correct and valid as submitted."
(3) 
The SWM site plan shall provide the following information:
(a) 
The overall stormwater management concept for the project.
(b) 
A determination of site conditions in accordance with the BMP Manual3. A detailed site evaluation shall be completed for projects proposed in environmentally sensitive areas, such as brownfields.
(c) 
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 § 347-13.
(d) 
Expected project time schedule.
(e) 
A soil erosion and sediment control plan, where applicable, as prepared for and submitted to the approval authority.
(f) 
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.
(g) 
Plan and profile drawings of all SWM BMPs, including drainage structures, pipes, open channels, and swales.
(h) 
SWM site plan shall show the locations of existing and proposed on-lot wastewater facilities and water supply wells, property boundaries, existing and proposed topography, point(s) of interest, utilities, and potential utility conflicts.
(i) 
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 including type and schedule/frequency of maintenance activities, personnel and equipment requirements, estimated annual maintenance costs, and method of financing continuing O&M.
(j) 
A justification, acceptable to the designated plan reviewer, 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.
Up to five copies of the SWM site plan shall be submitted as follows:
A. 
Two copies to the municipality.
B. 
One copy to the Municipal Engineer (when applicable).
C. 
One copy to the Allegheny County Conservation District (when requested by the District).
D. 
One copy to the Allegheny County Sanitary Authority (in areas with combined sewer systems).
A. 
The municipality has designated the Municipal Engineer as the designated plan reviewer of SWM site plans for the municipality, and shall be understood to be the reviewer where indicated as the municipality within this chapter.
B. 
SWM site plans shall be reviewed by the municipality for consistency with the provisions of this chapter.
C. 
The municipality shall notify the applicant, in writing, within 45 days whether the SWM site plan is approved or disapproved or requires additional documentation. If the SWM site plan involves a subdivision and land development plan, the notification shall occur within the time period allowed by the Municipalities Planning Code (90 days). If a longer notification period is provided by other statute, regulation, or ordinance, the applicant will be so notified by the municipality.
D. 
For any SWM site plan that proposes to use any BMPs other than green infrastructure and LID practices to achieve the volume and rate controls required under this chapter, the municipality will not approve the SWM site plan unless it determines that green infrastructure and LID practices are not practicable.
E. 
If the municipality disapproves the SWM site plan, the municipality will state the reasons for the disapproval in writing. The municipality also may approve the SWM site plan with conditions and, if so, shall provide the acceptable conditions for approval in writing.
F. 
The applicable review fee, in accord with Article VI, must accompany a resubmission of a disapproved SWM site plan.
A modification to a submitted SWM site plan that involves a change in SWM BMPs or techniques, or that involves the relocation or redesign of SWM BMPs, or that is necessary because soil or other conditions are not as stated on the SWM site plan, as determined by the designated plan reviewer, shall require a resubmission of the modified SWM site plan in accordance with this article.
A disapproved SWM site plan may be resubmitted, with the revisions addressing the municipality's concerns, to the municipality in accordance with this article. The applicable review fee, in accord with Article VI, must accompany a resubmission of a disapproved SWM site plan.
The municipality's approval of an SWM site plan 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 municipality 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 municipality signs the approval for an SWM site plan. If an approved SWM site plan is not completed according to § 347-24 within the term of validity, then the municipality may consider the SWM site plan disapproved and may revoke any and all permits. SWM site plans that are considered disapproved by the municipality shall be resubmitted in accordance with § 347-22 of this chapter.
A. 
The developer shall be responsible for providing record drawings of all SWM BMPs included in the approved SWM site plan. The record drawings and an explanation of any discrepancies with the construction plans shall be submitted to the municipality.
B. 
The record drawing submission shall include a certification of completion signed by a qualified professional verifying that all permanent SWM BMPs have been constructed according to the approved plans and specifications. The latitude and longitude coordinates for all permanent SWM BMPs must also be submitted, at the central location of the BMPs. If any licensed qualified professionals contributed to the construction plans, then a licensed qualified professional must sign the completion certificate.
C. 
The municipality may conduct inspections during construction as it deems appropriate. If inspections performed by the municipality reveal deficiencies from the submitted and approved SWM site plan, the municipality may request corrective actions. Any corrective action shall be at the cost of the stormwater facility owner.
D. 
After receipt of the completion certification by the municipality, the municipality may conduct a final inspection.