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 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 or occupied."
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 process at a rate greater
than would occur because of the natural process alone.
The work of producing crops and raising livestock, including
tillage, plowing, discing, 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 § 379-4 of this chapter.
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 Jefferson County and/or Clearfield 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 agent of the Jefferson County and/or Clearfield County
Planning Commission and/or agent of the governing body involved with
the administration, review or enforcement of any provisions of this
chapter by contract or memorandum of understanding.
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.
An impoundment structure designed to manage stormwater runoff
by temporarily storing the runoff and releasing it at a predetermined
rate.
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.
A stormwater management facility designed to transmit stormwater
runoff and 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 City of DuBois after the drainage
plan has been approved. Said permit is issued prior to or with the
final City 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 § 379-15.
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 water 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 comprise Group 13 Soils, as listed in Appendix A of the Pennsylvania
Department of Environmental Protection (PADEP) Technical Manual for
Sewage Enforcement Officers (as amended or replaced from time to time
by PADEP).
The channel of the watercourse and those portions of the
adjoining floodplains which are reasonably required to carry and discharge
the one-hundred-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 one-hundred-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 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. (To) grade –
To finish the surface of a roadbed, top of embankment or bottom of
excavation.
A natural or constructed waterway, usually broad and shallow,
covered with erosion-resistant grasses, used to conduct surface water
from cropland.
Replenishment of existing natural underground water supplies.
A surface that prevents the percolation of water into the
ground.
A retention or detention basin designed to retain stormwater
runoff and release it at a controlled rate.
A structure designed to direct runoff into the ground (e.g.,
french drains, seepage pits, seepage trench).
A surface connection to a closed drain. A structure at the
diversion end of a conduit. The upstream end of any structure through
which water may flow.
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 Sandy Lick Creek Hydrologic Model.
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 so long as the flow is not under
pressure.
An agreement between the City of DuBois and the Clearfield
County Conservation District to provide for cooperation between the
Clearfield County Conservation District and the City Council of DuBois,
Clearfield County, to include within its ordinances, and to jointly
promote conservation of natural resources within the City of DuBois
on lands both public and private, for the purposes of preventing accelerated
soil erosion and sedimentation of streams, reducing stormwater damage
and promoting the health, safety and general welfare of the residents
of the City of DuBois.
Director of Public Works or City's consulting engineer.
The City of DuBois.
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 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 adapted
to the Sandy Lick Creek watershed for the Act 167 plan. 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 stormwater management and erosion and sediment pollution
control plans and narratives.
The entity set up specifically to review Act 167 drainage
plans, inspect stormwater management structures and otherwise enforce
all regulations as outlined in the "Sandy Lick Creek Watershed Act
167 Stormwater Management Ordinance."
The Planning commission of the City of DuBois.
The flood that may be expected from the most severe combination
of critical meteorologic 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.
Actions or proposed actions that have an impact on stormwater runoff and that are specified in § 379-4 of this chapter.
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
return period rainfall would be expected to recur on the average once
every 25 years.
A vertical pipe extending from the bottom of a pond 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 roof surfaces by incorporating controlled-flow
roof drains into building designs.
Any part of precipitation that flows over the land surface.
The process by which mineral or organic matter is accumulated
or deposited by the movement of water.
A barrier, dam, 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 requirements of this chapter.
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 which flows over the ground surface as a thin, even
layer, not concentrated in a channel.
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 classification of soils by the Natural Resources 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 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.
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."
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.
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 Sandy Lick
Creek Watershed adopted by Jefferson or Clearfield County as required
by the Act of October 4, 1978, P.L. 864, (Act 167) and known as the
"Sandy Lick Creek 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 stream of water, river, brook, creek or a channel or ditch
for water, whether natural or man-made.
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.
Those 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, marches, bogs, fens and similar areas.
