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 section, 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 and/or maintenance easements as determined necessary by the Township for all physical SWM BMPs, such as ponds and infiltration structures, to implement the operation and maintenance (O&M) plan discussed in Subsection E(9) below.
(1)
A fifteen-foot-wide access easement around all stormwater management
facilities that would provide ingress to and egress from a public
right-of-way shall be provided. Physical improvements shall be made
to provide vehicular access to all stormwater facilities.
D.
The following signature block for the certified professional shall
be provided:
|
"(Certified Professional), on this date (date of signature),
has reviewed and hereby certifies that the SWM site plan meets all
design standards and criteria of Ordinance No. 2011-04."
|
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 site assessment
procedures outlined in Chapter 4 of the most current version of the
Pennsylvania Stormwater Best Management Practices Manual. A site assessment
shall be completed for projects proposed in areas of carbonate geology
or karst topography.
(3)
Stormwater runoff design computations and documentation as specified in this chapter, or as otherwise necessary to demonstrate that measures have been taken to meet the requirements of this chapter, including the recommendations and general requirements in Article III.
(4)
Expected project time schedule.
(5)
A soil erosion and sediment control plan, where applicable, as prepared
for and submitted to the approving authority.
(6)
The effect of the project (in terms of runoff volumes, water quality,
and peak flows) on surrounding properties and adjacent aquatic features
and on any existing stormwater conveyance system that may be affected
by the project.
(7)
The SWM site plan shall show the locations of existing and proposed
on-lot wastewater facilities and water supply wells.
(8)
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.
(9)
Plans shall be submitted on sheet sizes of 18 x 24 inches or 24 x
36 inches, blueprints or black-line prints or photocopies. Reproducible
Mylars may be submitted for Township approval and signature upon final
plan approval.
(10)
The project name, sheet titles, and drawing numbers and index.
(11)
The names and addresses of the landowner, land developer/subdivider,
existing topographic surveyor, and the plan designer.
(12)
The names and parcel numbers of landowners adjacent to the property.
(13)
The plan date and date of the latest plan revision.
(14)
A certification of design signed and sealed by a professional
engineer registered in the Commonwealth of Pennsylvania and qualified
under state and local laws to perform such duties.
(15)
A project location map, at a minimum of one inch equals 2,000
feet, showing the project site property line, limits of development,
streets, street names, and bodies of water within 2,000 feet of the
property boundary.
(16)
A North arrow, graphic scale, and written scale. Plans shall
be to a scale of one inch equal to 10, 20, 30, 40 or 50 feet. General
site layout plans which will not be used for construction detail may
be at one inch equal to 100 feet.
(17)
Existing and proposed property boundaries. In the case of a
land development plan on a large tract, the property boundary does
not need to be shown in its entirety at the full drawing scale. The
entire tract is required to be shown in the site location map.
(18)
Clearly shown existing and proposed drainage patterns, existing
and proposed elevation contours at intervals of at least one foot
for plans at scale of one inch equal to 10 or 20 feet, at least two
feet for all other scales. Where land is sloped more than 20%, contour
intervals may be every five feet. Show spot elevations at high points
and low points and critical areas which cannot be interpolated between
contours. Indicate the location and elevation of the benchmark. Provide
the date the existing topography was surveyed and the method of survey
(aerial or field).
(19)
An outline of soil type limits and list soil types as shown
in the Soil Survey of Cumberland County. Provide a table listing the
following information for the applicable on-site soil types:
(a)
Soil map symbol (soil name abbreviation);
(b)
Soil name, applicable building site restrictions (Soil Survey
Table 7);
(c)
Applicable sanitary facilities restrictions (Soil Survey Table
8);
(d)
Applicable construction materials restrictions (Soil Survey
Table 9);
(e)
Applicable water management restrictions (Soil Survey Table
10); and
(f)
Hydrologic group, flooding and high water table information
(Soil Survey Table 15).
(20)
Existing features and proposed improvements, existing and final
land covers, and existing and proposed stormwater management facilities.
Provide a drawing legend of unidentified or existing and proposed
features.
(21)
Outlines of existing and proposed drainage areas and subareas
and the paths for calculating the times of concentration. An alternative
method is to include this information with the design narrative.
(22)
Profiles of stormwater piping systems using a horizontal scale
as the plan and a vertical scale 1/10 of the horizontal scale. Identify
pipe sizes, lengths, slopes, and inverts. Identify pertinent elevations
for inlets, manholes and all other profiled facilities.
(23)
Construction details, sections, and specifications of facilities
with sufficient information and dimensions so that they can be built
to meet the requirements of this chapter. Provide a note which states
the materials and details specified shall not be altered during construction
without written approval by the Township.
(24)
An indication of all stormwater easements, areas and facilities
to be dedicated to the Township. Describe maintenance responsibilities
and the responsible party/parties. Provide a note prohibiting easement
areas from being obstructed with trees, shrubbery, and structures.
Provide a plan note allowing county and Township officials access
to easement areas for inspection, installation, or correction of stormwater
facilities.
(25)
The existing and proposed one-hundred-year stormwater elevation
and finished floor elevations for lots adjacent to the one-hundred-year
stormwater elevation in critical areas. Show FEMA information where
applicable.
(26)
Erosion and sedimentation control features as required by PADEP
Chapter 102.
(27)
Indicate limits of phases and include a narrative of the construction
sequence.
F.
Design narrative content. The stormwater management design narrative
shall contain the following:
(1)
An introductory section describing the existing site and drainage
area features, the existing points of discharge from the site, proposed
site improvements, and a description of major drainage improvements
and how they impact downstream areas. Identify any unusual existing
conditions at the site that affect the existing stormwater drainage.
Provide a statement of who visited the site and the date or dates
of the site visit of both on-site and downstream facilities.
(2)
A summary table listing existing and proposed discharge points' identification,
acreage, storm event frequency, and runoff flows/discharges.
(3)
Drainage area maps with outlines of existing and proposed drainage
areas and subareas and the paths for calculating the times of concentration
(alternate is to show this information in the plan).
(4)
Existing and proposed stormwater detailed calculations of runoff,
facility designs, and erosion and sedimentation control designs.
(6)
The design narrative shall be signed and sealed by a registered professional
engineer qualified to perform such duties.
G.
Improvement and maintenance guaranties shall be provided to the Township in the amounts and forms consistent with Chapter 178, Subdivision and Land Development.
H.
Itemized cost estimates for the stormwater management facilities
shall be submitted to the Township for approval of the amount of guaranties
required.
A.
The SWM site plan shall be reviewed by the Township for consistency
with the provisions of this chapter.
B.
SWM site plan review and approval procedure.
(1)
If an SWM site plan does not involve a subdivision and/or land development,
the review of the SWM site, recommendations, approval, approval with
conditions, or disapproval shall occur within 45 days of submission
to the Township.
(2)
If an SWM site plan involves a subdivision and/or land development
plan, the period of time from the submission to the Township of the
subdivision and/or land development plan application which includes
the SWM plan and the approval, approval with conditions, or disapproval
shall not exceed 90 days, in accordance with the procedure for approval
of plats in Section 508 of the Pennsylvania Municipalities Planning
Code.[1]
[1]
Editor's Note: See 53 P.S. § 10508.
(3)
From the time an application for approval of a plat involving a subdivision
or land development plan, whether preliminary or final, which includes
an SWM site plan, is duly filed with the Township, no change or amendment
of this chapter or other governing ordinance or plan shall affect
the decision on such application in accordance with the provisions
of the governing ordinances or plans as they stood at the time the
application was duly filed, as specified in Section 508(4)(I) of the
Pennsylvania Municipalities Planning Code.[2]
[2]
Editor's Note: See 53 P.S. § 10508.
C.
Decision notification procedure. In all cases, the decision of the
Township to approve or disapprove the SWM site plan shall be in writing
and shall be delivered to the applicant no later than 15 days following
the decision. If the SWM site plan is disapproved, the written decision
by the Township shall specify the defects in the application, describe
the requirements which were not met, and shall cite the provisions
of this chapter relied upon. If the SWM site plan is approved with
conditions, all conditions shall be addressed prior to issuance of
a building permit, unless the conditions of approval state otherwise.
The notification to the applicant shall state the acceptable conditions
for approval and the time limit for satisfying such conditions. For
SWM site plans associated with a subdivision and land development
plan, the time limit for satisfying such conditions or approval for
the SWM site plan shall be the time limit prescribed for conditional
approval of subdivision and land development plans as stated in the
Township Subdivision and Land Development Ordinance.[3]
A revision to a previously 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, shall require a resubmission of the revised SWM site
plan in accordance with this article, including applicable review
fees. For NPDES permitted sites, any revised SWM site plan shall also
be resubmitted to the Cumberland County Conservation District for
review. In the case of an 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.
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, consistent with the provisions of § 170-24.
A.
SWM site plans independent of subdivision and land development plans. The Township's approval of an SWM site plan, when such plan is submitted independent of a subdivision and/or land development 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, particularly if the nature of the proposed SWM facilities requires more-frequent maintenance and/or short-term replacement of certain components. 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 § 170-28 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 Township may be resubmitted in accordance with § 170-25 of this chapter.
