[Ord. No. 1075, 11/14/2018]
1.
Appropriate sections from Chapter 22 of the Borough's Code of Ordinances, Subdivision and Land Development, and other applicable local ordinances, shall be followed in preparing the SWM site plans.
2.
The Borough 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 Part, when a SWM site plan is found to
be deficient, the Borough may either disapprove the submission and
require a resubmission, or in the case of minor deficiencies, the
Borough may accept submission of modifications.
3.
The following items shall be included in the SWM site plan:
A.
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 3C(9) below.
B.
The following signature block for the Borough:
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"(Designated plan reviewer) on this date (Signature date), has
reviewed and hereby certifies that the SWM site plan meets all design
standards and criteria of the Municipal Ordinance No. 1075, 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."
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C.
The SWM site plan shall provide the following information:
(1)
The overall stormwater management concept for the project, including
any off-site stormwater management controls.
(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 § 23-201.
(4)
Expected project time schedule.
(5)
A soil erosion and sediment control plan, where applicable,
as prepared for and submitted to the approval authority.
(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, drainage boundaries, 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, property boundaries,
easements, rights-of-way or deed restrictions, watershed location,
existing and proposed topography, point(s) of interest, utilities,
and potential utility conflicts.
(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
including type and schedule/frequency of maintenance activities, personnel
and equipment requirements, estimated annual maintenance costs, and
method of financing continuing O&M.
(10)
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.
(11)
A list of any permits/approvals relative to stormwater management
that will be required from other governmental agencies (e.g., an obstructions
permit from DEP) and anticipated dates of submission/receipt should
be included with the stormwater plan submission. Copies of permit
applications may be requested by the Borough where they may be helpful
for the plan review.
[Ord. No. 1075, 11/14/2018]
Up to five copies of the SWM site plan shall be submitted as
follows:
[Ord. No. 1075, 11/14/2018]
1.
Preapplication Phase.
A.
Before submitting the stormwater plan, applicants should consult
with the Borough, Allegheny County Planning Agency and Allegheny County
Conservation District, as needed, on the requirements for safely managing
stormwater runoff from the development site in a manner consistent
with the Borough ordinances and applicable watershed stormwater management
plan. These agencies may also be helpful in providing necessary data
for the stormwater management plan.
B.
Applicants are encouraged to submit a sketch plan with a narrative
description of the proposed stormwater management controls for general
guidance and discussion with the Borough and other agencies;
C.
The preapplication phase is not mandatory; any review comments provided
by the Borough or other agencies are advisory only and do not constitute
any legally binding action on the part of the Borough or any county
agency.
2.
The Borough has designated the Borough Engineer as the designated
plan reviewer of SWM site plans for the Borough and shall be understood
to be the reviewer where indicated as the Borough within this chapter.
3.
SWM site plans shall be reviewed by the Borough for consistency with
the provisions of this chapter.
4.
The Borough 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[1] (90 days). If a longer notification period is provided
by other statute, regulation, or ordinance, the applicant will be
so notified by the Borough.
[1]
Editor's Note: See 53 P.S. § 10101 et seq.
5.
The approval/disapproval of the site's stormwater management
plan by the Borough Engineer shall be considered final. The Borough
Council shall not reverse the Engineer's determination by approving
or disapproving the site's stormwater management plan or any
specific control measure in contradiction to the Engineer's action.
The Borough Council may request modifications or alternative approaches
to the stormwater management controls, provided these are agreed to
by the Borough Engineer and the applicant's engineer.
6.
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 Borough will not approve the SWM
site plan unless it determines that green infrastructure and LID practices
are not practicable.
7.
Where the proposed development requires an obstruction permit from
the DEP or an erosion/sedimentation permit from the County Conservation
District, then final SWM site plan approval shall be conditional upon
receipt of such permits. However, no building permit shall be issued,
nor construction started, until the permits are received and copies
filed with the Borough.
8.
If the Borough disapproves the SWM site plan, the Borough will state
the reasons for the disapproval in writing. The Borough also may approve
the SWM site plan with conditions and, if so, shall provide the acceptable
conditions for approval in writing.
9.
The applicable review fee, in accord with Part 6, must accompany
a resubmission of a disapproved SWM site plan.
[Ord. No. 1075, 11/14/2018]
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 Part.
[Ord. No. 1075, 11/14/2018]
A disapproved SWM site plan may be resubmitted, with the revisions
addressing the Borough's concerns, to the Borough in accordance
with this Part. The applicable review fee, in accord with Part 6,
must accompany a resubmission of a disapproved SWM site plan.
[Ord. No. 1075, 11/14/2018]
The Borough's approval of a SWM site plan authorizes the regulated activities contained in the SWM site plan for a maximum term of validity of two years following the date of approval. The Borough may specify a term of validity shorter than two years in the approval for any specific SWM site plan. Terms of validity shall commence on the date the Borough signs the approval for a SWM site plan. If an approved SWM site plan is not completed according to § 23-307 within the term of validity, then the Borough may consider the SWM site plan disapproved and may revoke any and all permits. SWM site plans that are considered disapproved by the Borough shall be resubmitted in accordance with § 23-305 of this chapter.
[Ord. No. 1075, 11/14/2018]
1.
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 Borough.
2.
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.
3.
The Borough may conduct inspections during construction of the temporary
and permanent stormwater management system for the development site.
The permittee shall notify the Engineer 48 hours in advance of the
completion of the following key development phases:
A.
At the completion of preliminary site preparation, including stripping
of vegetation, stockpiling of topsoil and construction of temporary
stormwater management and erosion control facilities.
B.
At the completion of rough grading but prior to placing topsoil,
permanent drainage or other site development improvements and ground
covers.
C.
During construction of the permanent stormwater facilities at such
times as specified by the Borough Engineer.
D.
Completion of permanent stormwater management facilities including
established ground covers and plantings.
E.
Completion of final grading, vegetative control measures or other
site restoration work done in accordance with the approved plan and
permit.
F.
After receipt of the certificate of completion.
4.
If inspections performed by the Borough reveal deficiencies from
the submitted and approved SWM site plan, the Borough may request
corrective actions. Any corrective action shall be at the cost of
the stormwater facility owner.
5.
The Borough may complete any additional inspections it deems appropriate.
