A.
For all regulated activities not eligible for exemptions pursuant to § 190-4 of this chapter the applicant shall submit a stormwater management plan and report prepared by a professional engineer licensed in the Commonwealth of Pennsylvania, which shall contain, but not be limited to, the following:
(1)
A suitable map of the watershed for any and all named streams within
which the project is proposed (A United States Geological Survey quadrangle
map is usually sufficient), with existing and proposed development
areas presented on the map.
(2)
Suitable maps and drawings showing all existing natural and constructed
drainage facilities affecting the subject property.
(3)
Hydrologic (watershed) and water feature boundaries, including all
areas flowing to the proposed project, existing streams (including
first order and intermittent streams), springs, lakes, ponds, or other
bodies of water within the project area.
(4)
Sufficient topographical information with elevations to verify the
location of all ridges, streams, etc. (two-foot contour intervals
within the project's boundaries and for proposed off-site improvements;
for slopes greater than 15%, five-foot contours are acceptable).
(6)
General type of soils with hydrologic soil group noted, estimated
permeabilities in inches per hour, and location and results of all
soil tests and borings (if needed).
(7)
One-hundred-year flood elevations for any special flood hazard areas
on or within 100 feet of the property. For redevelopment sites, also
show the ten-year and twenty-five-year flood elevations for any special
flood hazard areas on or within 100 feet of the property. The source
of these elevations shall also be shown on the plans.
(8)
Description of current and proposed ground cover and land use. The
total area and percent impervious cover shall be noted.
(9)
A wetland delineation report for the project site with a location
map identifying wetland areas if any were found.
(10)
A plan of the proposed stormwater drainage system attributable
to the activity proposed, including runoff calculations, stormwater
management practices to be applied both during and after development,
and the expected project time schedule.
(11)
The design computations for all proposed stormwater drainage
systems, including storm drain pipes, inlets, runoff control measures
and culverts, drainage channels, and other features, facilities, and
stormwater management practices.
(12)
A grading plan, including all areas of disturbance of the subject
activity. The total area of disturbance shall be noted in square feet
and acres. Topographic contours showing the existing and proposed
final contours at an interval of two feet; in areas having slope of
greater than 15%, a five-foot contour interval may be used.
(13)
A plan of the erosion and sedimentation procedures to be utilized
as required by local ordinance and state regulations.
(14)
The effect of the project (in terms of runoff volumes and peak
flows) on adjacent properties and on any other stormwater collection
system that may receive runoff from the project site and specifics
of how erosion and flooding impacts to adjacent properties will be
avoided or otherwise mitigated.
(15)
An operation and maintenance plan consistent with the requirements of Article V. Such a plan should clearly explain how the proposed facilities operate and the functions they serve.
(16)
The name of the development, the name and address of the property
owner and applicant, and the name and address of the individual or
firm preparing the plan.
(17)
A north arrow, submission date, graphic scale and revision dates
as applicable shall be included on each page of all plans submitted.
(18)
Complete delineation of the flow paths used for calculating
the time of concentration for the predeveloped and post-developed
conditions.
(19)
Construction details sufficient to completely express the intended
stormwater design components consistent with this chapter.
(20)
A listing of all permits required for the site providing the
status of the permit application(s) and approval(s).
(21)
All adjacent property owners shall be notified of the project
and its stormwater and BMP installation. Legal proof of this notification
must be provided to the municipality.
(22)
The plan contents shall include, but are not limited to:
(a)
Existing water bodies and channels (i.e., ponds, streams, etc.).
(b)
Flood boundaries (i.e., FEMA, project, etc.).
(c)
Geologic features (i.e., limestone, sinkholes, etc.).
(d)
Natural vegetation.
(e)
Existing and proposed utilities.
(f)
Soil names and boundaries.
(g)
Test pit and/or boring locations.
(h)
Changes to land and soil cover and indicate the amount of impervious
cover.
(i)
Proposed structures/features (i.e., roads, buildings, etc.).
(j)
Topographic, man-made, and existing features extending 100 feet
from the project's boundary.
(k)
Wetlands.
(l)
Date of submission.
(m)
Access easement to all BMPs.
(n)
Location, details, and cross sections of all proposed BMPs.
(o)
Note(s) indicating who is responsible for maintenance of the
proposed BMPs.
(p)
A statement signed by the applicant acknowledging any revision
to the approved stormwater management plan and/or calculations must
be reviewed and approved by the Borough, PA DEP, and Allegheny County
Conservation District; in addition, a revised erosion and sedimentation
pollution control plan for a determination of adequacy.
(q)
A signature block for the design engineer (plan and calculations).
I, (name), on this date (date) hereby certify that the drainage
plan meets all the requirements, design standards, and criteria of
the Bradford Woods Stormwater Management Ordinance.
B.
Final copies of all plans, specifications and reports shall also
be submitted to the Borough in Adobe PDF format.
C.
Stormwater management site plans approved by the municipality, in
accordance with this chapter, shall be on site throughout the duration
of the regulated activity.
