Definitions. For the purpose of this code, the following
terms, phrases, words and their derivations shall have the meanings
given herein. Where terms are not defined by this Section, such terms
shall have ordinarily accepted meanings such as the context implies.
BEST MANAGEMENT PRACTICES OR BMP
Practices, procedures or a schedule of activities to reduce
the amount of sediment and other pollutants in stormwater discharges
associated with construction and land disturbance activities. BMP
also include treatment and requirements, operating procedures and
practices to control plant site runoff, spillage or leaks, sledge
or waste disposal or drainage from raw material storage and both structural
and non-structural measures to control, treat or prevent stormwater
runoff pollution within waters of the State. "Structural measures" means engineered devices and "non-structural measures" includes, but is not limited to, alternative site design, ordinance
and zoning, education and good housekeeping measures. Types of BMP
include, but are not limited to:
1.
State-approved standard specifications and permit programs.
2.
Employee training in erosion control, material handling and
storage and housekeeping for maintenance areas.
3.
Site preparation such as grading, surface roughening, top soiling,
tree preservations and protection and temporary construction entrances.
4.
Surface stabilization such as temporary seeding, permanent seeding,
mulching, sodding, ground cover including vines and shrubs, riprap
and geotextile fabric. Mulches may be hay, straw, fiber mats, netting,
wood cellulose, corn or tobacco stalks, bark, corn cobs, wood chips
or other suitable material which is reasonably clean and free of noxious
weeds and deleterious materials. Grasses used for temporary seeding
shall be a quick growing species such as rye grass, Italian rye grass
or cereal grasses suitable to the area and which will not compete
with the grasses sown later for permanent cover.
5.
Runoff control measures such as temporary diversion dikes or
berms, permanent diversion dikes or berms, right-of-way or perimeter
diversion devices and retention and detention basins; and sediment
traps and barriers, sediment basins, sediment (silt) fence and staked
straw bale barriers.
6.
Runoff conveyance measures such as grass-lined channels, riprap
and paved channels, temporary slope drains, paved flumes or chutes;
and slope drains may be constructed of pipe, fiber mats, rubble, Portland
cement concrete, plastic sheets or other materials that adequately
will control erosion.
7.
Inlet and outlet protection.
8.
Stream bank protection such as a vegetative greenbelt between
the land disturbance and the watercourse. Also, structural protection
which stabilizes the stream channel
9.
A critical path method analysis or a schedule for performing
erosion control measures.
10.
Other proven methods for controlling runoff and sedimentation.
BOCA
Refers to the currently adopted BOCA National Building Code;
these regulations are designed to be used with the adopted BOCA Codes
as a reference for minimum performance standards.
BUILDING DEPARTMENT
The Northwoods Building Department acting through its Director
or his/her duly authorized designee.
CITY
The City of Northwoods, Missouri.
CLEARING
Any activity that removes the vegetative surface cover or
destroys the root system.
COUNTY
St. Louis County, Missouri.
DEBRIS OR SEDIMENT BASIN
A barrier or dam built across a waterway or at locations
to retain rock, sand, gravel, silt or other materials.
DEPARTMENT OF PUBLIC WORKS
The Northwoods Department of Public Works acting through
its Director or his/her duly authorized designee.
DIVERSION
A channel with or without a supporting ridge on the lower
side constructed across or at the bottom of a slope.
DRAINAGE WAY
Any channel that conveys surface runoff through a site.
EROSION
The wearing away of land surface through the action of wind
or water.
EROSION CONTROL
Any Best Management Practices (BMP) that prevents or minimizes
erosion.
EXCAVATION OR CUT
The removal, stripping or disturbance of soil, earth, sand,
rock, gravel or other similar substances from the ground.
EXISTING GRADE
The vertical location of the existing ground surface prior
to excavations or filling.
FEMA
Federal Emergency Management Agency.
FILL OR FILLING
The placing of any soil, earth, sand, rock, gravel or other
substance on the ground.
FINISHED GRADE
The final grade or elevations of the ground surface conforming
to the proposed design.
GRADING
Reshaping the ground surface through excavation and/or fill
of material.
LAND DISTURBANCE ACTIVITIES
Clearing, grading or any related work which results in removal
of the natural site vegetation or destruction of the root zone or
otherwise results in leaving the ground surface exposed to soil erosion
through the action of wind or water.
LAND DISTURBANCE, MAJOR
Any land disturbance activity involving one (1) acre or more
of land or a site involving less than one (1) acre that is part of
a proposed development that will ultimately disturb one (1) acre or
more.
LAND DISTURBANCE PERMIT
A permit issued by the authority having jurisdiction authorizing
a land disturbance activity at a specific site subject to conditions
stated in the permit. A land disturbance permit may be for any one
(1) or more major or ordinary land disturbance activities.
PERIMETER CONTROL
A barrier that prevents sediment from leaving a site by filtering
sediment-laden runoff or diverting it to a sediment trap or basin.
PHASING
Clearing a parcel of land in distinct stages with the stabilization
of each phase substantially completed before the clearing of the next.
QUALIFIED PROFESSIONAL
A Missouri licensed professional engineer or other person
or firm knowledgeable in the principles and practices of erosion and
sediment control, including the Best Management Practices described
in this code.
SEDIMENT
Solid material, mineral or organic, that has been moved by
erosion and deposited in a location other than the point of origin.
SEDIMENT CONTROL
Any Best Management Practices (BMP) that prevents eroded
sediment from leaving a site.
SILT TRAPS OR FILTERS
Staked bales or silt fencing systems that function as a filter
and a velocity check to trap fine-grained sediment while allowing
satisfactory passage for stormwater runoff.
SITE
A lot or parcel of land, or a contiguous combination thereof,
where grading work is performed as a single unified operation.
SITE DEVELOPMENT
Altering terrain and/or vegetation and constructing improvements.
STABILIZATION
The use of Best Management Practices (BMP) that prevent exposed
soil from eroding from a land disturbance site.
STORM WATER POLLUTION PREVENTION PLAN (SWPPP)
A management plan, the purpose of which is to ensure the
design, implementation, management and maintenance of Best Management
Practices in order to reduce the amount of sediment and other pollutants
in stormwater discharges associated with land disturbance activities,
that complies with the standards of the City and County and ensure
compliance with the terms and conditions of the applicable State permits,
including adherence to the land disturbance program contained in Missouri
MS4 NPDES permits.
STREAM BANK, TOP OF EXISTING
The usual boundaries, not the flood boundaries, of a stream
channel. The top of the natural incline bordering a stream.
WATERCOURSE
A natural or artificial channel or body of water, including,
but not limited to, lakes, ponds, rivers, streams, ditches and other
open conveyances, that carry surface runoff water either continuously
or intermittently.