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.
CLEARING
Any activity that removes the vegetative surface cover.
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 (BMPs) that prevent or minimize
erosion.
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 and 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.
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 CONTROL
Any best management practices (BMPs) that prevent eroded
sediment from leaving a site.
STABILIZATION
The use of best management practices (BMPs) that prevent
exposed soil from eroding from a land disturbance site.
START OF CONSTRUCTION
The first land-disturbing activity associated with a development,
including land preparation such as clearing, grading, and filling;
installation of streets and walkways; excavation for basements, footings,
piers, or foundations; erection of temporary forms; and installation
of accessory buildings such as garages.
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 (BMPs) in order to reduce the amount of sediment and other
pollutants in stormwater discharges associated with land disturbance
activities, comply with the standards of the 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.
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.