The words "shall" and "must" are mandatory; the words "may" and "should"
are permissive.
AGRICULTURAL ACTIVITY
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 pasturing
and raising of livestock and installation of conservation measures.
Construction of new buildings or impervious area is not considered
an agricultural activity.
APPLICANT
A landowner, developer, or other person who has filed an
application to Foster Township for approval to engage in any regulated
activity at a project site in Foster Township.
BEST MANAGEMENT PRACTICE (BMP)
Activities, facilities, designs, measures, or procedures
used to manage stormwater impacts from regulated activities, to meet
state 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 practice that is installed to capture and
treat stormwater runoff. Structural BMPs include, but are not limited
to, a wide variety of practices and devices, from large-scale retention
ponds and constructed wetlands to small-scale underground treatment
systems, infiltration facilities, filter strips, low-impact design,
bioretention, wet ponds, permeable paving, grassed swales, riparian
or forested buffers, sand filters, detention basins, and manufactured
devices. Structural stormwater BMPs are permanent appurtenances to
the project site.
CAPTURE
The process of collecting runoff to be managed by a stormwater
BMP.
CONSERVATION DISTRICT
A conservation district, as defined in Section 3(c) of the
Conservation District Law [3 P. S. § 851(c)] that has the
authority under a delegation agreement executed with DEP to administer
and enforce all or a portion of the regulations promulgated under
25 Pa. Code Chapter 102; refers to the Luzerne Conservation District
unless otherwise noted.
DEP
The Pennsylvania Department of Environmental Protection.
DESIGN STORM
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."
DETENTION VOLUME
The volume of runoff that is captured and released into the
waters of this commonwealth at a controlled rate.
DEVELOPMENT, SITE
Any human-induced change to improved or unimproved real estate,
whether public or private, including, but not limited to, land development,
construction, installation, or expansion of a building or other structure,
land division, street construction, drilling, and site alteration
such as embankments, dredging, grubbing, grading, paving, parking
or storage facilities, excavation, filling, stockpiling, or clearing.
DISCONNECTED IMPERVIOUS AREA (DIA)
An impervious or impermeable surface that is disconnected
from any stormwater drainage or conveyance system and is redirected
or directed to a pervious area, which allows for infiltration, filtration,
and increased time of concentration as specified in Appendix C.1,
Disconnected Impervious Area.
DISTURBED AREA
An unstabilized land area where an earth disturbance activity
is occurring or has occurred.
EARTH DISTURBANCE ACTIVITY
A construction or other human activity which disturbs the
surface of the land, including, but not limited to: grubbing; grading;
excavations; embankments; road maintenance; building construction;
and the moving, depositing, stockpiling, or storing of soil, rock,
or earth materials. The clearing of vegetation without disturbance
of the land shall not be considered an earth disturbance activity.
EROSION
The natural process by which the surface of the land is worn
away by water, wind, or chemical action.
EXISTING CONDITION
The dominant land cover during the five-year period immediately
preceding a proposed regulated activity.
FEMA
Federal Emergency Management Agency.
FLOODPLAIN
Any land area susceptible to inundation by water from any
natural source or delineated by applicable FEMA maps and studies as
being a special flood hazard area. Also includes areas that comprise
Group 13 soils, as listed in Appendix A of the Pennsylvania DEP Technical
Manual for Sewage Enforcement Officers (as amended or replaced from
time to time by DEP).
FLOODWAY
The channel of the watercourse and those portions of the
adjoining floodplains that are reasonably required to carry and discharge
the 100-year flood. Unless otherwise specified, the boundary of the
floodway is as indicated on maps and flood insurance studies provided
by FEMA. In an area where no FEMA maps or studies have defined the
boundary of the 100-year floodway, it is assumed, absent evidence
to the contrary, that the floodway extends from the stream to 50 feet
from the top of the bank of the stream.
FOREST MANAGEMENT/TIMBER OPERATIONS
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.
GEOTEXTILE
A porous fabric manufactured from synthetic fiber that is
used to provide separation between different types of media (i.e.,
between soil and stone).
GRAVEL (CRUSHED STONE)
Considered to be impervious when the intended use of the
stone is for transportation purposes, parking areas, construction
areas, trails, or if the gravel is compacted at any time during or
after its placement; landscaping stone is not considered as impervious
area.
HOTSPOT
Areas where land use or activities generate highly contaminated
runoff, with concentrations of pollutants that are higher than those
that are typically found in stormwater (e.g., vehicle salvage yards
and recycling facilities, vehicle fueling stations, fleet storage
areas, vehicle equipment and cleaning facilities, and vehicle service
and maintenance facilities).
HYDROLOGIC SOIL GROUP (HSG)
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) according to their
minimum infiltration rate, which is obtained for bare soil after prolonged
wetting. The NRCS 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 (NRCS
§ 192-37C and D).
IMPERVIOUS SURFACE (IMPERVIOUS AREA)
A permanent surface that prevents the infiltration of water
into the ground. Impervious surfaces include, but are not limited
to, streets, sidewalks, pavements, parking lots, driveways, roofs,
and stone patios. See definition of "gravel (crushed stone)" for when
gravel classifies as impervious area.
INFILTRATION
Movement of surface water into the soil, where it is absorbed
by plant roots, evaporated into the atmosphere, or percolated downward
to recharge groundwater.
KARST
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.
LAND DEVELOPMENT (DEVELOPMENT)
See definition of "land development" as defined in Chapter
210, Subdivision and Land Development, of the Code of the Township of Foster.
LOW-IMPACT DEVELOPMENT
A land development and construction approach that uses various
land planning, design practices, and technologies to simultaneously
conserve and protect natural resource systems while allowing for necessary
infrastructure improvements associated with land development.
NRCS
United States Department of Agriculture's Natural Resources
Conservation Service (previously SCS).
PEAK DISCHARGE
The maximum rate of stormwater runoff from a specific storm
event.
PERMANENT
Existing or intended to exist for an indefinite period of
time. For purposes of this chapter, any structure is considered a
permanent structure if the structure is intended to exist for a time
period of 180 days or longer.
PROJECT SITE
The specific area of land where any regulated activities
in Foster Township are planned, conducted, or maintained.
QUALIFIED PROFESSIONAL
Any person licensed by the Pennsylvania Department of State
or otherwise qualified by law to perform the work required by this
chapter.
REDEVELOPMENT
Any development that requires demolition or removal of existing
structures or impervious surfaces at a site and replacement with new
impervious surfaces. Maintenance activities such as top-layer grinding
and repaving are not considered to be redevelopment unless the resurfacing
results in a discernible change in the existing stormwater runoff
discharge point. Interior remodeling projects and tenant improvements
are also not considered to be redevelopment.
REGULATED ACTIVITIES
Any earth disturbance activities or any activities that involve the alteration or development of land in a manner that may affect stormwater runoff. The installation of a new stormwater management facility shall be considered a regulated activity of this chapter regardless of the amount of earth disturbance associated with the installation of the facility. See §
192-5 of this chapter for additional detail on regulated activities.
RETENTION VOLUME/REMOVED RUNOFF
The volume of runoff that is captured and not released directly
into the surface waters of this commonwealth during or after a storm
event.
RETURN PERIOD
The average interval, in years, within which a storm event
of a given magnitude can be expected to occur one time. For example,
the twenty-five-year return period rainfall would be expected to occur
on average once every 25 years; or stated in another way, the probability
of a twenty-five-year storm occurring in any one year is 0.04 (i.e.,
a 4% chance).
RUNOFF
Any part of precipitation that flows over the land.
SEDIMENT
Soils or other materials transported by surface water as
a product of erosion.
STATE WATER QUALITY REQUIREMENTS
The regulatory requirements to protect, maintain, reclaim,
and restore water quality under Title 25 of the Pennsylvania Code
and the Clean Streams Law.
STORMWATER
Drainage runoff from the surface of the land resulting from
precipitation or snowmelt or ice melt.
STORMWATER MANAGEMENT FACILITY
Any permanent structure, natural or man-made, that, due to
its condition, design, or construction, conveys, stores, or otherwise
affects stormwater runoff. Typical stormwater management facilities
include, but are not limited to: detention and retention basins, open
channels, storm sewers, pipes, french drains, underground on-lot seepage
pits (dry wells), roof drains, sump pump discharge piping, foundation
drains, and infiltration facilities.
STORMWATER MANAGEMENT PLAN
The Luzerne County Stormwater Management Plan for managing
stormwater runoff adopted by the County of Luzerne as required by
the Act of October 4, 1978, P.L. 864 (Act 167), as amended, and known
as the "Storm Water Management Act."
STORMWATER MANAGEMENT SITE PLAN
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. Stormwater management site plan
will be designated as SWM site plan throughout this chapter.
STRUCTURE
Any man-made object constructed or erected and having an
ascertainable stationary location on or in land or water, whether
or not affixed to the land.
SUBDIVISION
As defined in the Pennsylvania Municipalities Planning Code,
Act of July 31, 1968, P.L. 805, No. 247.
USDA
United States Department of Agriculture.
VOID RATIO
The ratio of the volume of void space to the total volume
of the BMP material (void space plus solid material/media providing
structural support to create the storage area).
WATERS OF THIS COMMONWEALTH
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.
WATERSHED
Region or area drained by a river, watercourse, or other
surface water of this commonwealth.
WETLAND
Areas that are inundated or saturated by surface water or
groundwater at a frequency and duration sufficient to support, and
that under normal circumstances do support, a prevalence of vegetation
typically adapted for life in saturated soil conditions, including
swamps, marshes, bogs, and similar areas.