For the purposes of this chapter, certain terms and words used
herein shall be interpreted as follows:
A.
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.
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 the like kind and character.
C.
The word "person" includes an individual, firm, association, organization,
partnership, trust, company, corporation, or any other similar entity.
D.
The words "shall" and "must" are mandatory; the words "may" and "should"
are permissive.
E.
The words "used or occupied" include the words "intended, designed,
maintained, or arranged to be used, occupied or maintained."
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 man's activity and the natural processes of a rate
greater than would occur because of the natural process alone.
The work of producing crops and raising livestock including
tillage, plowing, disking, harrowing, pasturing and installation of
conservation measures. Construction of new buildings or impervious
area is not considered an agricultural activity.
As applied to land, a change in topography as a result of
the moving of soil and rock from one location or position to another;
also the changing of surface conditions by causing the surface to
be more or less impervious; land disturbance.
A landowner or developer who has filed an application for approval to engage in any regulated activities as defined in § 377-4 of this chapter.
Stormwater structures, facilities and techniques intended
to maintain or improve the hydrologic regime or improve the water
quality of surface runoff.
Borough of Jim Thorpe, Carbon County, Pennsylvania.
The widening, deepening, and headward cutting of small channels
and waterways, due to erosion caused by moderate to large floods.
An underground reservoir or tank for storing rainwater.
The Carbon County Conservation District.
A structure with appurtenant works which carries a stream
under or through an embankment or fill.
An artificial barrier, together with its appurtenant works,
constructed for the purpose of impounding or storing water or another
fluid or semifluid, or a refuse bank, fill or structure for highway,
railroad, or other purposes which does or may impound water or another
fluid or semifluid.
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.
Jim Thorpe Borough will be the governing body involved with
the administration, review, or enforcement of any provisions of this
chapter by contract or memorandum of understanding.
An impoundment structure designed to manage stormwater runoff
by temporarily storing the runoff and releasing it at a predetermined
rate.
Those subareas in which some type of detention is required
to meet the plan requirements and the goals of Act 167.
A person, partnership, association, corporation, or other
entity, or any responsible person therein or agent thereof, that undertakes
any regulated activity of this chapter.
The specific tract of land for which a regulated activity
is proposed.
That portion of the property line of the lot, tract, or parcels
of land being developed, located such that all overland or pipe flow
from the site would be directed towards it.
Any downstream capacity hydraulic analysis conducted in accordance
with this chapter shall use the following criteria for determining
adequacy for accepting increased peak flow rates:
Natural or man-made channels or swales must be able to convey
the increased rate of runoff associated with a two-year return period
event within their banks at velocities consistent with protection
of the channels from erosion. Acceptable velocities shall be based
upon criteria included in the DEP Erosion and Sediment Pollution Control
Program Manual.
Natural or man-made channels or swales must be able to convey
the increased twenty-five-year return period rate of runoff without
creating any hazard to persons or property.
Culverts, bridges, storm sewers or any other facilities which
must pass or convey flows from the tributary area must be designed
in accordance with DEP Chapter 105 regulations (if applicable) and,
at a minimum, pass the increased twenty-five-year return period rate
of runoff.
No new channels or conveyance facilities shall be authorized
by this language.
A stormwater management facility designed to transmit stormwater
runoff which shall include streams, channels, swales, pipes, conduits,
culverts, storm sewers, etc.
A right granted by a landowner to a grantee, allowing the
use of private land for stormwater management purposes.
A permit issued by the Borough governing body after the drainage
plan has been approved. Said permit is issued prior to or with the
final Borough approval.
The documentation of the stormwater management system, if any, to be used for a given development site, the contents of which are established in § 377-16.
Any activity including, but not limited to, construction,
mining, timber harvesting and grubbing which alters, disturbs, and
exposes the existing land surface.
The movement of soil particles by the action of water, wind,
ice, or other natural forces.
A plan which is designed to minimize accelerated erosion
and sedimentation.
The initial condition of a project site prior to the proposed
construction. If the initial condition of the site is undeveloped
land, the land use shall be considered as "meadow" unless the natural
land cover is proven to generate lower curve numbers or Rational "C"
value, such as forested lands.
A general but temporary condition of partial or complete
inundation of normally dry land areas from the overflow of streams,
rivers, and other waters of this commonwealth.
Any land area susceptible to inundation by water from any
natural source or delineated by applicable Department of Housing And
Urban Development, Federal Insurance Administration Flood Hazard Boundary
mapped as being a special flood hazard area. Also included are areas
that compose Group 13 Soils, as listed in Appendix A of the Pennsylvania
Department of Environmental Protection (PA DEP) Technical Manual For
Sewage Enforcement Officers (as amended or replaced from time to time
by PA DEP).
The channel of the watercourse and those portions of the
adjoining floodplains that are reasonably required to carry and discharge
the 100-year frequency 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 frequency 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.
Planning and activities necessary for the management of forest
land. These include timber inventory and preparation of forest management
plans, silvicultural treatment, cutting budgets, logging and road
design and construction, timber harvesting, site preparation, and
reforestation.
A vertical distance between the elevation of the design high-water
and the top of a dam, levee, tank, basin, or diversion ridge. The
space is required as a safety margin in a pond or basin.
A slope, usually of a road, channel or natural ground specified
in percent and shown on plans as specified herein.
A natural or constructed waterway, usually broad and shallow,
covered with erosion-resistant grasses, used to conduct surface water.
Replenishment of existing natural underground water supplies.
Impervious surfaces are those surfaces which do not absorb
water. All structures, buildings, parking areas, driveways, roads,
sidewalks, and any areas of concrete, asphalt, compacted playing field,
or packed stone shall be considered impervious surface. In addition,
all other areas as determined by the Municipal Engineer to be impervious
within the meaning of this definition shall also be considered as
impervious surface.
A retention or detention basin designed to retain stormwater
runoff and release it at a controlled rate.
A structure or basin designed to direct runoff into the ground
(e.g., French drains, seepage pits, seepage trench).
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.
Any activity involving grading, tilling, digging, or filling
of ground or stripping of vegetation or any other activity that causes
an alteration to the natural condition of the land.
Any stream segment or other runoff conveyance facility used
as a reach in the hydrologic model of a watershed.
A method for calculation of velocity of flow (e.g., feet
per second) and flow rate (e.g., cubic feet per second) in open channels
based upon channel shape, roughness, depth of flow and slope. "Open
channels" may include closed conduits as long as the flow is not under
pressure.
Borough of Jim Thorpe, Carbon County, Pennsylvania.
Pollution that enters a watery body from diffuse origins
in the watershed and does not result from discernible, confined, or
discrete conveyances.
Natural Resources Conservation Service [previously Soil Conservation
Service (SCS)].
A drainage element in which stormwater flows with an open
surface. Open channels include, but shall not be limited to, natural
and man-made drainageways, swales, streams, ditches, canals, and pipes
flowing partly full.
Point where water flows from a conduit, stream, or drain.
Points of water disposal from a stream, river, lake, tidewater
or artificial drain.
Involves the use of impervious parking areas as temporary
impoundments with controlled release rates during rainstorms.
The maximum rate of stormwater runoff from a specific storm
event.
The computer-based hydrologic modeling technique used for
the Act 167 Plan proposed by DEP. The model has been calibrated to
reflect actual recorded flow values by adjoining key model input parameters.
A culvert, closed conduit, or similar structure (including
appurtenances) that conveys stormwater.
The Planning Commission of the Borough of Jim Thorpe.
The flood that may be expected from the most severe combination
of critical meteorological and hydrologic conditions that are reasonably
possible in any area. The PMF is derived from the probable maximum
precipitation (PMP) as determined on the basis of data obtained from
the National Oceanographic and Atmospheric Administration (NOAA).
A rainfall-runoff relation used to estimate peak flow.
A calculated volume of stormwater runoff from impervious
areas which is required to be infiltrated at a site and may be achieved
through use of structural or nonstructural BMPs.
Any activity to which this chapter is applicable pursuant to § 377-4 of this chapter.
The percentage of predevelopment of peak rate of runoff from
a site or subarea to which the postdevelopment peak rate of runoff
must be reduced to protect downstream areas.
An impoundment in which stormwater is stored and not released
during the storm event. Stored water may be released from the basin
at some time after the end of the storm.
The average interval, in years, within which a storm event
of a given magnitude can be expected to recur. For example, the twenty-five-year
storm period rainfall would be expected to recur on the average once
every 25 years. This is equivalent to this type of rain event having
a 4% chance of activity occurring in one year.
A term that relates to an area of land directly influenced
by permanent water. It has visible vegetation or physical characteristics
reflective of permanent water influence. Lake shores and stream banks
are typical riparian areas.
The natural vegetation from the edge of the stream bank out
through the riparian zone. The vegetative zone serves as a buffer
to pollutants entering a stream from runoff, controls erosion, and
provides habitat and nutrient input into the stream.
A vertical pipe extending from the bottom of a point that
is used to control the discharge rate from the pond for a specified
design storm.
Temporary ponding and gradual release of stormwater falling
directly onto flat surfaces by incorporating controlled-flow roof
drains into building designs.
Any part of precipitation that flows over the land surface.
A barrier, dam, or retention or detention basin located and
designed to retain rock, sand, gravel, silt, or other material transported
by water.
The placement, discharge, or any other introduction of sediment
into the waters of the commonwealth occurring from the failure to
design, construct, implement or maintain control measures and control
facilities in accordance with the requirement of this chapter.
The process by which mineral or organic matter is accumulated
or deposited by the movement of water.
An area of excavated earth filled with loose stone or similar
coarse material, into which surface water is directed for infiltration
into the ground.
Runoff that flows over the ground surface as a thin, even
layer, not concentrated in a channel.
A classification of soils by the Natural Resource Conservation
Service into four runoff potential groups. The groups range from A
soils, which are very permeable and produce little runoff, to D soils,
which are not very permeable and produce much more runoff.
A method of runoff computation developed by the NRCS that
is based on relating soil type and land use/cover to a runoff parameter
called "curve number" (CN).
A depression in the embankment of a pond or basin which is
used to pass peak discharge greater than the maximum design storm
controlled by the pond.
Also known as a stormwater management storage facility, is
any earth impoundment, subsurface basin, pit, trench, chambers, etc.,
that is designed to store stormwater for any amount of time for the
purpose of peak rate reduction. Examples of storage facilities are
detention basins, retention basins, wet basins, extended detention
basins, infiltration basins, subsurface chambers, subsurface infiltration
pits, subsurface stone beds or trenches, etc.
A reservoir routing procedure based on solution of the continuity
equation (inflow minus outflow equals the change in storage) with
outflow defined as a function of storage volume and depth.
The number of times that a given storm event occurs or is
exceeded on the average in a stated period of years. See "return period."
Also, the percent likelihood that the storm could occur in a single
year.
A system of pipes and/or open channels that convey intercepted
runoff and stormwater from other sources, but excludes domestic sewage
and industrial wastes.
The total amount of precipitation reaching the ground surface.
A portion of the overall watershed that has been designated
to have a separate release rate.
Any 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, and infiltration structures.
The plan for managing stormwater runoff in the watersheds
of Jim Thorpe Borough as required by the Act of October 4, 1978, P.L.
864 (Act 167); and the Carbon County plan is known as the "Jim Thorpe
Borough Watershed Action 167 Stormwater Management Plan."
The plan prepared by the developer or his representative
indicating how stormwater runoff will be managed at the particular
site of interest according to this chapter.
A bridge, culvert, or other structure in excess of 100 feet
in length upstream to downstream which encloses a regulated water
of this commonwealth.
The smallest drainage unit of a watershed for which stormwater
management criteria have been established in the stormwater management
plan.
The division or redivision of a lot, tract, or parcel of
land by any means into two or more lots, tracts, parcels or other
divisions of land including changes in existing lot lines for the
purpose, whether immediate or future, of lease, transfer of ownership,
or building or lot development; provided, however, that the subdivision
by lease of land for agricultural purposes into parcels of more than
10 acres, not involving any new street or easement of access or any
residential dwellings, shall be exempt.
A low-lying stretch of land which gathers or carries surface
water runoff.
See "forest management."
The time for surface runoff to travel from the hydraulically
most distant point of the watershed to a point of interest within
the watershed. This time is the combined total of overland flow time
and flow time in pipes or channels, if any.
A variable indicative of stormwater runoff volume and dependent
on the impervious coverage for a site.
A calculated volume of stormwater runoff from impervious
areas which is required to be captured and treated at a site and may
be achieved through use of structural or nonstructural BMPs. Numerically,
the water quality volume is a product of the volumetric runoff coefficient,
the site area, and a depth of rainfall of one inch (keeping units
consistent).
Any channel or conveyance of surface waters having a defined
bed and banks, whether natural or artificial, with perennial or intermittent
flow.
Any and all rivers, streams, creeks, rivulets, 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, subject to the regulations
of the commonwealth.
The area that collects drainage from precipitation into one
common watercourse; the watersheds, in part or in total, of the Silk
Mill Run, Slaughterhouse Creek, Robertson Run, Mahoning Creek, and
Mauch Chunk Creek which are within the boundaries of the Borough of
Jim Thorpe, all of which flow into the Lehigh River within the Delaware
River Basin.
Those areas that are inundated or saturated by surface or
ground water 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, ferns, and similar areas.
