Although not a requirement of this chapter, prior to proceeding
with SWM site plan preparation and submission, the applicant is encouraged
to request a pre-application meeting with the Township's Engineer
and a staff member of the York County Conservation District to discuss
the plan concept and responsibility for submission of required documents
and information. The following items shall be included in the SWM
site plan:
A. Appropriate sections of the Township's Subdivision and Land Development
Ordinance, and other applicable ordinances of the Township regarding
subdivision and land development plan preparation and applicable plan
requirements shall be followed in preparing all SWM site plans, regardless
of whether or not a SWM site plan involves a subdivision and/or land
development plan.
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 a SWM site plan is found to be deficient, the Township may either disapprove the submission, or, in the case of minor deficiencies, the Township may accept the submission of a revised SWM site plan as noted in §
113-21 of this chapter.
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 Township:
|
"(Municipal official or designee), on this date (date of signature),
has reviewed and hereby certifies that to the best of his/her/their
knowledge the SWM site plan meets all design standards and criteria
of the Municipal Ordinance No. (number assigned to the Ordinance)."
|
E. The SWM site plan shall also provide the following information where
applicable:
(1) The overall stormwater management concept for the project, including
any additional information required for a post-construction stormwater
management plan (PCSWMP) as applicable.
(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, as well as for
other environmentally sensitive areas, whether natural or manmade,
including floodplains, streams, lakes, ponds, hydric soils, wetlands,
brownfields and wellhead protection zones.
(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 §
113-12.
(4) Expected project time schedule.
(5) A soil erosion and sediment control plan, where applicable, as prepared
for, reviewed, and approved by the York County Conservation District.
(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) The 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 operation and maintenance (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 description of permanent stormwater management techniques,
including the construction specifications of the materials to be used
for stormwater management facilities.
(11)
A notarized signature of the owner of the parcel for which the
SWM site plan is proposed indicating that they are aware of and will
be responsible for operation and maintenance of the facilities.
(12)
Existing and proposed land uses.
(13)
The location of the proposed regulated activity relative to
streets, municipal boundaries, and other significant manmade features.
(14)
Significant physical features and associated boundary limits
including flood hazard areas, sinkholes, existing drainage courses,
and areas of natural vegetation.
(15)
The location of existing and proposed utilities, stormwater
facilities, sanitary sewers, and waterlines on the parcel and within
50 feet of property lines.
(16)
Proposed changes to the land surface and vegetative cover, and
the type and amount of existing and proposed impervious area.
(17)
Existing and proposed structures, buildings, streets, driveways,
access drives, and parking areas.
(18)
Preferred contour intervals of two feet in moderately sloped
areas, and contours at intervals of five feet for slopes in excess
of 15%. Dependent upon site conditions, alternative contour intervals
proposed by an applicant or his designee may be accepted by the Township.
(19)
The name of the development, the name and address of the owner
of the property, and the name and address of the individual or firm
preparing the plan. Also to be included are the name, address, signature
and seal of any registered surveyor (attesting the accuracy of the
boundary survey), professional engineer, landscape architect, or professional
geologist (for geomorphological assessments) contributing to and/or
with a responsibility for any aspect of the plan where applicable.
(20)
Preferred graphic and written scale of one inch equals no more
than 50 feet. For parcels of 20 acres or more, the preferred scale
is one inch equals no more than 100 feet. Dependent upon site conditions,
an alternative scale proposed by the applicant or his designee may
be accepted by the Township.
(22)
A map showing all existing man-made features beyond the subject
parcel's boundary lines that will be affected by the proposed regulated
activities.
(23)
Horizontal and vertical profiles of all open channels, including
hydraulic capacity.
(24)
A note on the plan indicating the location, and responsibility
for maintenance of, SWM facilities and/or easements that would be
located on adjoining properties as a result of proposed regulated
activities, and the location of such facilities and/or easements.
(25)
A hydro-geologic assessment of the effects of stormwater runoff
on sinkholes where present.
(26)
The effect of the proposed regulated activity in terms of runoff
volumes and peak flows on adjacent properties and/or any existing
municipal stormwater collection system that may receive runoff from
the project site.
A revision to a previously submitted SWM site plan that involves
a change in SWM BMPs, stormwater management facilities, or changes
in analytical 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,
shall require a resubmission of the revised SWM site plan in accordance
with this article, including applicable fees. For NPDES permitted
sites, any revised SWM site plan shall also be resubmitted to the
York County Conservation District for review. In the case of a SWM
site plan which contains minor deficiencies, such as a missing label,
omission of a required note or minor construction detail, as determined
by the Township, the Township may accept a resubmission of such SWM
site plan without the requirement of a review fee, or for a lesser
fee as provided for in the Township fee schedule.
A disapproved SWM site plan may be resubmitted, with the revisions addressing the Township's concerns as stated regarding the original submission, to the Township in accordance with this article. The applicable review fee must accompany the submission of a revised SWM site plan, unless such fee is waived by the Township. (See §
113-21.)