The following items shall be included in the SWM site plan:
A. Appropriate sections from the Township's Subdivision and Land
Development Ordinance, and other applicable local ordinances, shall
be followed in preparing the SWM site plans. In instances where the
Township lacks Subdivision and Land Development regulations, the content
of SWM site plans shall follow the county's Subdivision and Land
Development Ordinance.
B. The Township 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 an SWM site plan is found
to be deficient, the Township may either disapprove the submission
and require a resubmission, or in the case of minor deficiencies,
the Township 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
D(9) below.
D. 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. A detailed site evaluation shall be completed for projects
proposed in areas of carbonate geology or karst topography, and other
environmentally sensitive areas, such as brownfields.
(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 §
296-11.
(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,
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)
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 required under
this chapter, the Township will not approve the SWM site plan unless
it determines that green infrastructure and LID practices are not
practicable.
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 Township Engineer shall require a resubmission of the modified
SWM site plan in accordance with this chapter.
A disapproved SWM site plan may be resubmitted, with the revisions
addressing the Township's concerns, to the Township in accordance
with this article. The applicable review fee must accompany a resubmission
of a disapproved SWM site plan.
The Township'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 Township 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 Township signs the approval for an SWM site plan. If an approved SWM site plan is not completed according to §
296-35 within the term of validity, then the Township 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 §
296-34 of this chapter.