The following general requirements shall be followed for all
plan submissions:
A.
No final subdivision or land development plan shall be approved,
no permit authorizing construction issued, or any earthmoving or land
disturbance activity initiated until the final stormwater management
plan for the development site is approved in accordance with the provisions
of this Part 2.
B.
A development of a single lot for a single family home or estate
must submit a simplified stormwater management plan. This plan must
include a site location map, a soils map, the runoff calculations
and the routing computations through the stormwater detention system.
A site plan must be submitted with contours at two foot intervals
and all natural features including any natural watercourse.
C.
The Borough Engineer shall review the proposed provisions for stormwater
management for a single lot for a single family home or estate. Where
the applicant is proposing to connect to an existing storm sewer,
the applicant shall demonstrate that sufficient capacity exists in
the storm sewer from the point of connection to the point of outlet
in the natural drainage system. The Borough Engineer shall determine
if the proposed development site is part of a larger parcel or tract
for which a stormwater management plan was approved previously and,
therefore, subject to any specific stormwater management control contained
in the prior plan.
D.
At the time of the submission of an application by a developer for
stormwater management review, the developer shall also submit a fee,
which will be established from time to time by resolution of the Borough
Council of the Borough of Baldwin. Such fees shall be in payment of
the costs incurred by the Borough for the review by the Borough Engineer
of the development plan, for any legal fees incurred in preparation
of development plan agreements, and other services, which shall be
established by resolution of the Borough Council from time to time,
and the cost of issuing permits related to the plan.
E.
Techniques described in Appendix E (Low Impact Development) of this chapter are encouraged, because they reduce the costs of complying with the requirements of this Part 2 and the state water quality requirements.
F.
In conjunction with meeting the requirements of this Part 2, the
applicant shall refer to and meet all conditions and requirements
set forth in the Borough of Baldwin Municipal Separate Storm Sewer
System (MS4) Prohibited Discharge Ordinance.
G.
In conjunction with meeting the requirements of this Part 2, the
Applicant shall refer to and meet all conditions and requirements
set forth in the Borough of Baldwin Total Maximum Daily Load (TMDL)
Plan as adopted and revised.
A.
At the time of application, the Borough Engineer shall determine
if the subdivision of land development qualifies as a "small development"
and therefore is eligible for a simplified stormwater management plan
submission. For the purposes of this article, a small development
is as follows: any subdivision or land development which results (or
will result when fully constructed) in the creation of 5,000 or less
square feet of impervious surface area shall be classified as a small
development and is exempt from a stormwater management plan submission.
Small developments must provide safe management of stormwater runoff
in accordance with the performance standard of this article and as
approved by the Borough. Any stormwater management facilities constructed
as part of the development shall be designed to control the peak pre-development
stormwater runoff for the one-, two-, ten-, twenty-five-, and one-hundred-year
storm. The detention facility must be able to safely pass the post
development one-hundred-year storm peak discharge. The facility must
provide an emergency outlet which can discharge the peak runoff for
the undetained post development one-hundred-year storm.
B.
Applications for small developments shall include a plan which describes,
narratively and graphically, the type and location of proposed on
site stormwater management techniques or the proposed connection to
an existing storm sewer system. The plan should show accurately site
boundaries, contours at five-foot intervals for areas of greater than
fifteen-percent slope gradient and at two-foot intervals for areas
with less than fifteen-percent slope, location of watershed and/or
subarea boundaries on the site (if applicable); and any watercourses,
flood plains or exiting drainage facilities or structures located
on the site.
C.
The predevelopment and post-development calculations which show the
amount of increase impervious area for the land development must be
submitted prior to receiving an exception from submission of a stormwater
management plan.
D.
If applicable, a copy of the PaDEP stream encroachment permit and
all supporting calculations must be submitted prior to an exemption.
E.
If the land development discharges its runoff into a floodway or
a natural or manmade swale or ditch, and is located upstream of a
known area of continuous flooding, the calculations showing no increase
in the peak water surface elevation at the point of flooding shall
be submitted for review.
F.
The Borough Engineer shall review and approve the proposed provisions
for stormwater management for a small development. Where the applicant
is proposing to connect to an existing storm sewer, the applicant
shall demonstrate that sufficient capacity exists in the storm sewer
from the point of connection to the point of outlet in the natural
drainage system. The Borough Engineer shall determine if the proposed
development site is part of a larger parcel or tract for which a stormwater
management plan was approved previously, and therefore subject to
any specific stormwater management control contained in the prior
plan.
G.
For a parcel or tract of land held under single ownership, only one
application for a small development, as defined above, shall be permitted
before requiring a stormwater management plan for the entire parcel.
A project cannot be phased to circumvent the stormwater requirements
by using the exemption for small developments. Stormwater for phased
projects will be looked at as a whole.
In conjunction with meeting the requirements of this Part 2,
the applicant shall refer to and meet all conditions and requirements
set forth in the Borough of Baldwin's Municipal Separate Storm
Sewer System (MS4) Prohibited Discharge Ordinance.
