[Ord. 2013-499, 7/10/2013]
1.Â
For the purposes of this Chapter, certain terms and words used herein
shall be interpreted as follows:
A.Â
Words used in the present tense include the future tense; the singular
number includes the plural, and the plural number includes the singular,
words of masculine gender include feminine gender, and words of feminine
gender include masculine gender.
B.Â
The word "includes" or "including" shall not limit the term to the
specific example but is intended to extend its meaning to all other
instances of like kind and character.
C.Â
The words "shall" and "must" are mandatory; the words "may" and "should"
are permissive.
D.Â
The words "used or occupied" include the words "intended, designed,
maintained or arranged to be used or occupied.
2.Â
ACCELERATED EROSION
AGRICULTURAL ACTIVITY
APPLICANT
BEST MANAGEMENT PRACTICE OPERATION AND MAINTENANCE PLAN
BMPs (BEST MANAGEMENT PRACTICES)
BIORETENTION AREA
BOROUGH
COUNTY CONSERVATION DISTRICT
DEDICATION
DEP
DESIGN STORM
DETENTION BASIN
DEVELOPER
DEVELOPMENT
DEVELOPMENT SITE
DRAINAGE EASEMENT
DRAINAGE FACILITY
DRAINAGE PLAN
EARTH DISTURBANCE ACTIVITY
EASEMENT
ENGINEER
EROSION
EROSION AND SEDIMENT CONTROL PLAN
FOREST MANAGEMENT/TIMBER OPERATIONS
GROUNDWATER
GROUNDWATER RECHARGE
HYDROLOGIC SOIL GROUP (HSG)
IMPERVIOUS SURFACE (AREA)
IMPOUNDMENT
KARST
LAND DEVELOPMENT
A.Â
B.Â
C.Â
LOCAL RUNOFF CONVEYANCE FACILITIES
MAINSTEM (MAIN CHANNEL)
MAINTENANCE GUARANTEE
MUNICIPALITIES PLANNING CODE
MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4)
NPDES
OUTFALL
PERFORMANCE GUARANTEE
PERSON
POINT SOURCE
PROJECT SITE
QUALIFIED PERSON or QUALIFIED PROFESSIONAL
REDEVELOPMENT
REGULATED ACTIVITY
REGULATED EARTH DISTURBANCE ACTIVITY
RELEASE RATE
RETENTION BASIN
RETURN PERIOD
ROAD MAINTENANCE
RUNOFF
SEDIMENT
SEDIMENTATION
SEPARATE STORM SEWER SYSTEM
SHEET FLOW
SPILL PREVENTION AND RESPONSE PLAN
STATE WATER QUALITY REQUIREMENTS
STORM DRAINAGE SYSTEMS
STORM SEWER
STORMWATER
STORMWATER DETENTION FACILITIES
STORMWATER FILTERS
STORMWATER MANAGEMENT SITE PLAN
STORMWATER MANAGEMENT WATERSHED PLAN
STREAM
STREAM BUFFER
SUBAREA
SURFACE WATERS OF THE COMMONWEALTH (ALSO KNOWN AS "WATERS OF
THE COMMONWEALTH")
SURVEYOR
SWALE
TRASH/DEBRIS COLLECTORS
VEGETATED SWALES
A.Â
B.Â
WATERCOURSE
WATER QUALITY INSERTS
WATERSHED
As used in this chapter, the following terms shall have the meanings
indicated:
The removal of the surface of the land through the combined
action of human activities and the natural processes, at a rate greater
than would occur because of the natural process alone.
Activities associated with agriculture such as agricultural
cultivation, agricultural operation, and animal heavy use areas. This
includes the work of producing crops, including tillage, land clearing,
plowing, disking, harrowing, planting, harvesting crops or the pasturing
and raising of livestock and installation of conservation measures.
Construction of new buildings or impervious area is not considered
an agricultural activity.
A landowner, developer or other person who has filed an application
for approval to engage in any regulated activity at a project site
in the Borough.
Documentation, included as part of a drainage plan, detailing
the proposed BMPs, how they will be operated and maintained and who
will be responsible for long-term maintenance.
Activities, facilities, designs, measures or procedures used
to manage stormwater impacts from regulated activities, to meet Pennsylvania
water quality requirements, to promote groundwater recharge, and to
otherwise meet the purposes of this Chapter. Stormwater BMPs are commonly
grouped into one of two broad categories or measures: "structural"
or "nonstructural." In this Chapter, nonstructural BMPs or measures
refer to operational and/or behavior-related practices that attempt
to minimize the contact of pollutants with stormwater runoff, whereas
structural BMPs or measures are those that consist of a physical device
or practices that are installed to capture and treat stormwater runoff.
Structural BMPs include, but are not limited to, a wide variety of
practices and devices, from retention ponds and constructed wetlands,
to underground treatment systems, infiltration facilities, filter
strips, low-impact design, bioretention, wet ponds, permeable paving,
vegetated swales, riparian or forested buffers, sand filters, and
detention basins. Structural stormwater BMPs are permanent appurtenances
to the project site.
Stormwater management measure which involves the shallow,
temporary ponding of stormwater runoff in areas with well-drained
soils and native vegetation.
The Borough of Red Hill, Montgomery County, Pennsylvania.
The Montgomery County Conservation District.
The deliberate donation of property by its owner for public
use.
The Pennsylvania Department of Environmental Protection.
The magnitude and temporal distribution of precipitation
from a storm event measured in probability of occurrence (e.g., a
five-year storm) and duration (e.g., 24 hours) used in the design
and evaluation of stormwater management systems. Also see "return
period."
A stormwater management structure with a controlled release
rate which is essentially dry while not receiving stormwater.
Any landowner, agent of such landowner, or tenant with the
permission of such landowner who makes or causes to be made a subdivision
of land or a land development.
See "earth disturbance activity." The term includes redevelopment.
The specific tract of land where any earth disturbance activities
in the Borough are planned, conducted or maintained.
A right granted by a landowner to a grantee, including an
association, allowing the use of private land for stormwater management
purposes.
Any ditch, pipe, culvert, storm sewer, stream, channel, swale,
conduit or other structure or feature designed, intended or constructed
for the purpose of diverting or carrying surface water.
A plan documenting the proposed stormwater management quantity
and quality management controls to be used for a given development
site, including a BMP operation and maintenance plan.
A construction or other human activity which disturbs the
surface of the land, including, but not limited to, clearing and grubbing,
grading, excavations, embankments, road maintenance, building construction
and the moving, depositing, stockpiling, or storing of soil, rock
or earth materials, excluding agricultural activities.
A vested or acquired legal right to use land other than as
a tenant, for a specific purpose, such right being held by someone
other than the owner who holds title to the land.
A professional engineer licensed as such in the Commonwealth
of Pennsylvania.
The natural process by which the surface of the land is worn
away by water, wind, ice or chemical action.
A plan for a project site designed to prevent on-site accelerated
erosion and off-site sedimentation through the use of vegetative or
mechanical controls, including BMPs. Control measures must be designed
to fit the topography, soils, rainfall and land use of the area they
are to protect.
Planning and activities necessary for the management of forestland.
These include conducting a timber inventory, preparation of forest
management plans, silvicultural treatment, cutting budgets, logging
road design and construction, timber harvesting, site preparation
and reforestation.
The water beneath the surface of the ground, the source of
water in springs, wells and base flow in streams.
Replenishment of underground water supplies beneath the ground
surface.
Infiltration rates of soils vary widely and are affected
by subsurface permeability as well as surface intake rates. Soils
are classified into four HSGs (A, B, C and D) to indicate the minimum
infiltration rates, which are obtained for bare soil after prolonged
wetting. The Natural Resources Conservation Service (NRCS) of the
U.S. Department of Agriculture defines the four groups and provides
a list of most of the soils in the United States and their group classification.
The soils in the area of the development site may be identified from
a soil survey report that can be obtained from local NRCS offices
or conservation district offices. Soils become less pervious as the
HSG varies from A to D.
A surface that prevents the infiltration of water into the
ground. Impervious surfaces (or areas) shall include, but not be limited
to, roofs, additional indoor living spaces, patios, garages, storage
sheds and similar structures, and any new streets or sidewalks. Decks,
parking areas and driveway areas are counted as impervious areas if
they do not allow for infiltration.
A body of water, such as a pond, lake, dam, retention or
detention basin designed to manage stormwater runoff by retaining
it or releasing it at a controlled rate.
A type of topography or landscape characterized by surface
depressions, sinkholes, rock pinnacles/uneven bedrock surface, underground
drainage, and caves. Karst is formed on carbonate rocks, such as limestone
or dolomite.
Inclusive of any or all of the following meanings when used
in this Chapter.
The improvement of one lot or two or more contiguous lots, tracts
or parcels of land for any purpose involving a) a group of two or
more buildings or b) the division or allocation of land or space between
or among two or more existing or prospective occupants by means of,
or for the purpose of, streets, common areas, leaseholds, condominiums,
building groups or other features;
Any subdivision of land;
Development in accordance with Section 503(1.1) of the Pennsylvania
Municipalities Planning Code.[1]
Any natural channel or man-made conveyance system which has
the purpose of transporting runoff from the site to the mainstem or
its tributaries.
Any stream segment or other conveyance used as a reach in
the Macoby Creek hydrologic model.
Security in a form in accord with the provisions set forth
in the Municipalities Planning Code as amended, which insures the
structural integrity of the improvements as well as the functioning
of said improvements in accordance with the design and specifications
as depicted on the final plat for a period not to exceed 18 months
after the acceptance of said improvements by the Red Hill Borough
Council, public utility, or municipal authority.
The Pennsylvania Municipalities Planning Code, Act of July
31, 1968, P.L. 805, No. 247, as reenacted and amended December 21,
1988; P.L. 1329, No. 170, as amended.[2]
As defined in 25 Pa. Code § 92a.2.
National Pollutant Discharge Elimination System, the federal
government's system for issuance of permits under the Clean Water
Act, which is delegated to DEP in Pennsylvania.
"Point source" as described in 40 CFR 122.2, and the point
where the Borough's storm sewer system discharges to surface waters
of the Commonwealth.
Financial security in a form that complies with the provisions
set forth in the Municipalities Planning Code, as amended, to guarantee
the proper construction and installation of improvements by the developer
in accordance with approved plans and specifications as a condition
for the approval of the plan.
An individual, partnership, unincorporated association, corporation,
whether public or private, governmental unit, public utility or other
legal entity recognized by law.
Any discernible, confined and discrete conveyance, including,
but not limited to, any pipe, ditch, channel, tunnel, or conduit from
which stormwater is or may be discharged, as defined in state regulations
at 25 Pa. Code § 92a.2.
The specific area of land where any regulated activities
in the Borough are planned, conducted or maintained.
Any person licensed by the Pennsylvania Department of State
or otherwise qualified by law to perform the work required by this
Chapter.
Earth disturbance activities on land which has previously
been disturbed or developed.
Any earth disturbance activities or any activities that involve
the alteration or development of land in a manner that may affect
stormwater runoff.
Activity involving earth disturbance subject to regulation
under 25 Pa. Code Chapter 92a, 25 Pa. Code Chapter 102 or the Clean
Streams Law.
The percentage of the predevelopment peak rate of runoff
for a development site to which the post-development peak rate of
runoff must be controlled to avoid peak flow increases throughout
the watershed.
A stormwater management structure with a controlled release
rate which maintains a constant water level while not receiving stormwater.
The average interval in years over which an event of a given
magnitude can be expected to recur. For example, the twenty-five-year
return period rainfall or runoff event would be expected to recur
on the average once every 25 years.
Earth disturbance activities within the existing road cross
section, such as grading and repairing existing unpaved road surfaces,
cutting road banks, cleaning or clearing drainage ditches and other
similar activities.
Any part of precipitation that flows over land.
For purposes of this Chapter, solid material, both mineral
and organic, that is in suspension, is being transported or has been
moved from its site of origin or has been deposited by water.
The process by which mineral or organic matter is accumulated
or deposited by moving wind, water, or gravity. Once this matter is
deposited (or remains suspended in water), it is usually referred
to as "sediment."
A conveyance or system of conveyances (including roads with
drainage systems) used for collecting and conveying stormwater runoff.
Stormwater runoff flowing in a thin layer over the ground
surface.
A program that identifies procedures for preventing and,
as needed, cleaning up potential spills, makes such procedures known
and makes the necessary equipment available to appropriate personnel.
The regulatory requirements to protect, maintain, reclaim
and restore water quality under Title 25 of the Pennsylvania Code
and the Clean Streams Law.
All facilities and features, such as pipes, culverts, open
channels, ditches, swales, and stormwater detention facilities, used
to transmit or temporarily store surface water runoff.
A system of pipes or other conduits that carry intercepted
surface runoff, street water and other wash waters or drainage, but
excludes domestic sewage and industrial waste.
The surface runoff generated by precipitation, snow or ice
melt, reaching the ground surface.
Basins, ponds, ponding areas, depressions or other structures
or features used to temporarily store rainfall and release it at a
controlled rate.
Any number of structural mechanisms, including, but not limited
to, multichamber catch basins, sand/peat filters, and sand filters,
which are installed to intercept stormwater flow and remove pollutants
prior to discharge. Typically, these systems require periodic maintenance
and cleanout.
For purposes of this Chapter, the plan prepared by the developer
or his representative indicating how stormwater runoff will be managed
at the development site in accordance with this Chapter (also sometimes
referred to as "SWM site plan" in this Chapter).
A plan for managing stormwater runoff adopted by Montgomery
County pursuant to the Pennsylvania Storm Water Management Act, P.L.
864 (Act 167 of 1978), as amended.[3]
A watercourse.
A zone of variable width located along a stream that is vegetated
and is designed to filter pollutants from runoff.
The smallest unit of watershed breakdown for hydrologic modeling
purposes for which the runoff control criteria have been established
in the stormwater management plan.
Any and all rivers, streams, creeks, rivulets, impoundments,
ditches, watercourses, storm sewers, lakes, dammed water, wetlands,
ponds, springs, and all other bodies or channels of conveyance of
surface and underground water, or parts thereof, whether natural or
artificial, within or on the boundaries of this Commonwealth.
A licensed land surveyor, registered as such in the Commonwealth
of Pennsylvania, and competent in profession as established under
the Pennsylvania Engineer, Land Surveyor, and Geologist Registration
Act.[4]
A low-lying stretch of natural or man-made land which gathers
or carries surface water runoff. See also "vegetated swale."
Racks, screens or other similar devices installed in a storm
drainage system to capture coarse pollutants (e.g., trash, leaves).
Vegetated earthen channels designed to convey stormwater. These
swales are not considered to be water quality BMPs.
Broad, shallow, densely vegetated, earthen channels designed
to treat stormwater while slowly infiltrating, evapotranspirating,
and conveying it. Swales should be gently sloping with low flow velocities
to prevent erosion. Check dams may be added to enhance performance.
For purposes of this Chapter, a channel or conveyance of
surface water, such as a stream or creek, having defined bed and banks,
whether natural or artificial, with perennial or intermittent flow.
Any number of commercially available devices that are inserted
into storm inlets to capture sediment, oil, grease, metals, trash,
and debris.
Region or area drained by a river, watercourse or other surface
water of this Commonwealth. Red Hill Borough is located in the Upper
Perkiomen Watershed.
