[Ord. 340, 12/6/1988]
This Part shall be known and may be cited as the "Soil Erosion,
Sedimentation and Grading Control Ordinance," implementing Title 25,
Rules and Regulations, Pt. I, Commonwealth of Pennsylvania, Department
of Environmental Resources, Sub-part C, Protection of Natural Resources,
Article II, Water Resources, Chapter 102 — Erosion
Control.
[Ord. 340, 12/6/1988]
The purposes of this Part are to regulate the modification of
the natural terrain, the alteration of drainage and to provide for
certain erosion and sediment control measures within the Borough of
Red Hill to assure and safeguard health, safety, ecology and the general
welfare in the Borough of Red Hill.
[Ord. 340, 12/6/1988]
From and after the effective date of this Part, any subdivision and/or land development approved under the subdivision and land development zoning ordinance, or activity qualified under §§
9-105 and
9-106 herein shall be in conformity with this Part. In the event of a conflict between this Part and floodplain regulations, the floodplain regulations shall take precedent.
[Ord. 340, 12/6/1988]
As used in this Part, the following terms shall have the meanings
indicated, unless a different meaning clearly appears from the context:
ALLUVIAL SOILS
An azonal great group of soils, developed from transported
and relatively recently deposited material (alluvium), characterized
by a weak modification (or none) of the original material by soil-forming
processes.
CUT AND/OR FILL
Process of earthmoving by excavating part of an area and/or
using excavated material for embankments or fill areas.
EROSION
1.
The wearing away of the land surface by running water, wind,
ice, chemical or other geological agents.
2.
Detachment and movement of soil or rock fragments by water,
wind, ice or gravity.
GRADE
1.
The slope of a road, channel or natural ground.
2.
The finished surface of a canal bed, roadbed, top of embankment
or bottom of excavation; any surface prepared for the support of construction-like
paving or laying a conduit.
3.
To finish the surface of a canal bed, roadbed, top of embankment
or bottom of excavation.
RUNOFF (HYDRAULICS)
That portion of the precipitation on a drainage area or watershed
that is discharged from the area in stream channels; types include
surface runoff, groundwater runoff or seepage.
SEDIMENT
Solid material, both mineral and organic, that is in suspension,
is being transported, or has been moved from its site of origin by
air, water, gravity or ice and has come to rest on the earth's
surface either above or below sea level.
SLOPE
Degree of deviation of a surface from the horizontal usually
expressed in percent or degrees.
SOIL DRAINAGE
A condition of the soil, referring to the frequency and duration
of periods when the soil is free of saturation.
WATERCOURSE
A natural drainage route or channel for the flow of water.
[Ord. 340, 12/6/1988]
Whenever the landscape is to be permanently disturbed as to
either contours, soil or slope characteristics, or vegetation of any
ground cover is to be permanently removed, a plan is required showing
how resulting erosion and sediment shall be controlled. This plan
shall include the following:
A. The amount of site alteration proposed.
C. Erosion and sediment control practices (both temporary and permanent)
and the operation and maintenance arrangements.
[Ord. 340, 12/6/1988]
The following activities require a grading permit:
A. Modifying, disturbing, blocking, diverting or otherwise adversely
affecting the natural overland or subsurface flow of stormwater.
B. Construction, erection or installation of any drainage dam, ditch,
culvert, drain pipe, bridge or any other structure or obstruction
affecting the drainage of any premises.
C. Paving, filling, stripping, excavating, grading or regrading of any
land.
D. Disturbing the landscape, vegetation or any ground cover by any proposal
involving an area in excess of 5,000 square feet.
[Ord. 340, 12/6/1988]
The following activities require no grading permit:
A. Improvements, such as erection of retaining walls, driveway paving,
minor regrading or activities on a property which do not adversely
affect the natural overland or subsurface flow of stormwater, drainage
of any premises or adversely disturb the landscape, in a gross area
of up to 25 acres on any one property.
B. Farming, gardening or lawn restoration, but not including sod farming.
[Ord. 340, 12/6/1988]
The plan for a grading permit shall include:
A. A valid boundary line survey of the site on which the work is to
be performed.
B. A description of the features, existing and proposed, surrounding
the site which are of importance to the proposed development.
C. A plan of the general topography (including drainage) and soil conditions
on the site (latter available through the County Conservation District).
D. The location and a description of existing and future man-made features
of importance to the proposed development (i.e., cuts and/or fills,
buildings, roads and driveways).
E. Plans and specifications of soil erosion and sediment control measures
in accordance with standards and specifications of the Borough of
Red Hill and the County Conservation District.
F. A development schedule indicating the anticipated starting and completion
dates of the development sequence and the time of exposure of each
area prior to the completion of effective erosion and sediment control
measures.
[Ord. 340, 12/6/1988]
In addition to the requirements of §
9-109, and where deemed necessary by the Borough Engineer and the Planning Commission, or the Borough Council, the applicant shall submit with the plan a detailed drainage study prepared by a registered professional engineer qualified in hydrology in the Commonwealth. This study shall include:
A. A plan of the property showing the location of all present and proposed
ditches, streams, pipes and other drainage structures, and proposed
cuts and/or fills. In addition to showing present elevations and dimensions,
and location and extent of all proposed grading and/or drainage, the
plan shall clearly indicate all woodlands, buildings, parking areas
and driveways. Further, the plan shall indicate the present and proposed
sources, storage and disposition of water being channeled through
or across the premises, together with elevations, gradients and maximum
flow rates. The plan shall describe the work to be performed and disposition
of cut and/or fill, the materials to be used and the manner or method
of performance including provisions for protecting and maintaining
existing drainage facilities whether on public or private property.
The applicant shall also supply the supporting data for the plan as
developed by the engineer.
B. Calculations to determine runoff, which shall be based on the Soil-Cover
Complex Method, a description of which is available from the U.S.D.A.
Soil Conservation Service and outline in the "Erosion and Sediment
Control Handbook, Montgomery County, Pennsylvania."
(1) The design criteria for storm sewer piping on inlet systems within
a subdivision being developed shall be designed for a twenty-five-year
frequency storm; culverts across roadways shall be designed for a
fifty-year frequency storm; open watercourses or swales shall be designed
for a one-hundred-year frequency storm as prescribed in accordance
with the following:
(a)
The coefficient of runoff used for all areas upstream of any
drainage structure shall be computed on the basis of existing land
use and the projected land use described and shown on the Borough
comprehensive plan, and adjacent municipalities' comprehensive
plans, where applicable.
(2) The following provisions apply to the carrying and disposal of stormwater
runoff:
(a)
All drainage facilities shall be designed to carry surface water
in such a manner as to prevent erosion or overflow.
(b)
The applicant shall agree to the granting and recording of easements
covering the installation and maintenance of drainage facilities.
(c)
The rate of runoff shall be no greater during and after a one-hundred-year
frequency storm when the development is completed than that which
existed before the development began and appropriate measurements
of calculations shall be provided to verify such provisions.
C. A soils investigation report, if load-bearing fill is proposed, which
shall consist of test borings, laboratory testings and engineering
analysis to correlate surface and subsurface conditions with the proposed
grading plan. The results of the investigation shall be presented
in a report by a registered professional soils engineer and shall
include: data regarding the nature, distribution and supporting ability
of existing soils and rocks on the site, conclusions and recommendations
to insure stable soil conditions and groundwater control as applicable.
The Borough of Red Hill may required such supplemental reports and
data as is deemed necessary by the Borough Engineer. Recommendations
included in such reports and approved by the Borough Engineer shall
be incorporated in the plan or specifications. In addition:
(1) Fills toeing out on natural slopes steeper than four horizontal to
one vertical shall not be made unless a report is received which is
deemed acceptable by the Borough Engineer and approved by the Borough
Council. The report shall be made by a registered professional soils
engineer certifying that he has investigated the property, made soils
tests and that in his opinion such steeper slopes will safely support
the proposed fill.
(2) Natural and/or existing slopes exceeding five horizontal to one vertical
shall be benched or continuously stepped into competent materials
prior to placing all classes of fill.
[Ord. 340, 12/6/1988]
Upon the approval of the plan by the Borough Engineer, the Code
Enforcement Officer shall issue the necessary grading permit.
[Ord. 340, 12/6/1988]
Permittees shall bear all costs of inspections required or permitted
hereunder and shall deposit with the Borough of Red Hill such sum
as the Borough Council shall determine, to guarantee payment of the
costs of such inspections. The costs of inspections shall be in accordance
with the established schedule of fees and collection procedure for
matters pertaining to this Part.
[Ord. 340, 12/6/1988]
The fee for a grading permit shall be fixed by resolution of
the Borough Council from time to time.
[Ord. 340, 12/6/1988; as amended by Ord. 424, 5/12/2004,
§ 1]
Any person, firm or corporation who shall violate any provision
of this Part shall, upon conviction thereof, be sentenced to pay a
fine of not more than $600 plus costs and, in default of payment of
said fine and costs, to a term of imprisonment not to exceed 30 days.
Each day that a violation of this Part continues shall constitute
a separate offense.
[Ord. 340, 12/6/1988]
In addition to the penalties as set forth in §
9-116, any movement of the landscape, vegetation or any ground cover, performed in violation of this Part shall be restored to its previous condition, including replacement of excavated earth, removal of illegally placed fill and restoration of grades and planting.