[Ord. No. 2010-1621 §1, 4-20-2010]
For the purpose of this Chapter, 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.
APPLICANT
A property owner or agent of a property owner who has filed an application for a stormwater management permit.
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.
BUFFER
With respect to a stream, a natural or enhanced vegetated area as established by the stream buffer requirements, lying adjacent to the stream.
BUILDING
Any structure, either temporary or permanent, having walls and a roof, designed for the shelter of any person, animal, or property, and occupying more than one hundred (100) square feet of area.
BUILDING COMMISSIONER
The Building Commissioner/Zoning Administrator for the City of Frontenac or his/her duly designated representative.
CHANNEL
A natural or artificial watercourse with defined bed and banks that conducts continuously or periodically flowing water.
CITY
The City of Frontenac.
CLEARING
Any activity that removes the vegetative surface cover.
CODE OR THIS CODE
Chapter 506 of the Municipal Code of the City of Frontenac.
CONSTRUCTION SITE OR LAND DISTURBANCE SITE
A parcel or contiguous parcels, where land disturbance activities are performed as part of a proposed development.
COUNTY
St. Louis County, Missouri.
DEBRIS OR SEDIMENT BASIN
A pit, barrier or dam built across a waterway and used to retain rock, sand, gravel, silt or other materials carried by water runoff.
DEDICATION
The deliberate appropriation of property by its owner for general public use.
DETENTION
The temporary storage of storm runoff in a stormwater BMP with the goals of controlling peak discharge rates and providing gravity settling of pollutants.
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.
EASEMENT
A legal right granted by a landowner to a grantee allowing the use of private land for conveyance or treatment of stormwater runoff and access to stormwater practices.
EROSION
The wearing away of land surface through the action of wind or water.
EROSION AND SEDIMENT CONTROL PLAN
A plan that is designed to minimize the accelerated erosion and sediment runoff at a site during construction activities.
EROSION CONTROL
Any Best Management Practices (BMP) that prevents or minimizes erosion.
ESCROW
An account under the control of the City that may involve a third (3rd) party as the escrow holder.
EXCAVATION OR CUT
The removal, stripping or disturbance of soil, earth, sand, rock, gravel or other similar substances.
EXISTING GRADE
The vertical location of the existing ground surface prior to excavation 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 elevation of the ground surface conforming to the proposed design which shall not create a public nuisance by water discharge.
FLOOD PLAIN
Any land area susceptible to flooding, which would have at least a one percent (1%) probability of flooding occurrence in any calendar year based on the basin being fully developed as shown on the current land use plan, i.e., the regulatory flood. This pertains to the 100-year flood plain only.
GRADING
Reshaping the ground surface through excavation and/or fill of material.
GROUND WATER MANAGEMENT AREA
A geographically defined area that may be particularly sensitive in terms of ground water quantity and/or quality by nature of the use or movement of ground water, or the relationship between ground water and surface water, and where special management measures are deemed necessary to protect ground water and surface water resources.
IMPAIRED WATERS
Those streams, rivers and lakes that currently do not meet their designated use classification and associated water quality standards under the Clean Water Act.
IMPERVIOUS COVER
Those surfaces that cannot effectively infiltrate rainfall (e.g., building rooftops, pavement, sidewalks, driveways, etc.).
INFILL DEVELOPMENT
Land development that occurs within designated areas based on local land use, watershed, and/or utility plans where the surrounding area is generally developed, and where the site or area is either vacant or has previously been used for another purpose.
INFILTRATION
The process of percolating stormwater into the subsoil, otherwise known as the bed or stratum of earth or earthy material immediately under the surface soil.
LAND DISTURBANCE
Any land or vegetation change, including, but not limited to, clearing, grubbing, stripping, removal of vegetation, dredging, grading, excavating, transporting and filling of land, that do not involve construction, paving or any other installation of impervious cover.
LAND DISTURBANCE ACTIVITY
Those actions or activities which comprise, facilitate or result in land disturbance.
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, ORDINARY
Any land disturbance activity involving less than one (1) acre of land.
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 permit may be for either major or ordinary land disturbance activities.
LANDOWNER
The legal or beneficial owner of land, including those holding the right to purchase or lease the land, or any other person holding proprietary rights in the land.
MAINTENANCE AGREEMENT
A legally recorded document that acts as a property deed restriction, and that provides for long-term maintenance of stormwater BMPs.
MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4)
Publicly-owned facilities by which stormwater is collected and/or conveyed, including, but not limited to, any roads with drainage systems, municipal streets, gutters, curbs, catch basins, inlets, piped storm drains, pumping facilities, retention and detention basins, natural and human-made or altered drainage ditches/channels, reservoirs, and other drainage structures.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) STORMWATER DISCHARGE PERMIT
A permit issued by the EPA, or by a State under authority delegated pursuant to 33 USC Section 1342(b), that authorize the discharge of pollutants to waters of the State, whether the permit is applicable on an individual, group, or general area-wide basis.
NATURAL WATERCOURSE
A channel formed in the existing surface topography prior to changes made by unnatural conditions.
NON-POINT SOURCE POLLUTION
Pollution from any source other than from any discernible, confined, and discrete conveyances, and shall include, but not be limited to, pollutants from agricultural, silvicultural, mining, construction, subsurface disposal and urban runoff sources.
NON-STORMWATER DISCHARGE
Any discharge to the storm drain system that is not composed entirely of stormwater.
NON-STRUCTURAL MEASURE
A stormwater control and treatment technique that uses natural processes, restoration or enhancement of natural systems, or design approaches to control runoff and/or reduce pollutant levels. Such measures are used in lieu of or to supplement structural practices on a land development site. Non-structural measures include, but are not limited to: minimization and/or disconnection of impervious surfaces; development design that reduces the rate and volume of runoff; restoration or enhancement of natural areas such as riparian areas, wetlands, and forests; and on-lot practices such as rain barrels, cisterns, and vegetated areas that intercept roof and driveway runoff.
OPEN CHANNEL
A constructed ditch or channel designed for water flow.
OWNER
The owner or owners of the freehold of the premises or lesser estate therein, a mortgagee or vendee in possession, assignee of rents, receiver, executor, trustee, lessee or other person, firm or corporation in control of a piece of land. As used herein, owner also refers to, in the appropriate context:
1. 
Any other person authorized to act as the agent for the owner;
2. 
Any person who submits a stormwater management concept or design plan for approval or requests issuance of a permit, when required, authorizing land development to commence; and
3. 
Any person responsible for complying with an approved stormwater management design plan.
PARCEL
Any plot, lot or acreage shown as a unit on the latest County tax assessment records.
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.
PERMANENT STORMWATER BMP
A stormwater best management practice (BMP) that will be operational after the construction phase of a project and that is designed to become a permanent part of the site for the purposes of managing stormwater runoff.
PERMANENT VEGETATION
Grass, sod or ground cover sufficient to prevent erosion.
PERMIT
The permit issued by the Building Division required for undertaking any land disturbance activity.
PERSON
Any individual, partnership, firm, association, joint venture, public or private corporation, trust, estate, commission, board, public or private institution, utility, cooperative, City, County or other political subdivision of the State, any interstate body or any other legal entity.
PHASING
Clearing a parcel of land in distinct stages, with the stabilization of each phase substantially completed before the clearing of the next.
PROTECTION AREA OR STREAM PROTECTION AREA
With respect to a stream, the combined areas of all required buffers and setbacks applicable to such stream.
PUBLIC WORKS DIRECTOR
The Public Works Director of the City of Frontenac or his/her designated representative.
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.
RECEIVING STREAM OR CHANNEL
The body of water or conveyance into which stormwater runoff is discharged.
RECHARGE
The replenishment of underground water reserves.
REDEVELOPMENT
A change to previously existing, improved property, including, but not limited to, the demolition or building of structures, filling, grading, paving, or excavating, but excluding ordinary maintenance activities, remodeling of buildings on the existing footprint, resurfacing of paved areas, and exterior changes or improvements that do not materially increase or concentrate stormwater runoff or cause additional non-point source pollution.
RESPONSIBLE PARTY
Any individual, partnership, co-partnership, firm, company, corporation, association, joint stock company, trust, estate, governmental entity, or any other legal entity, or their legal representatives, agents, or assigns that is named on a stormwater maintenance agreement as responsible for long-term operation and maintenance of one (1) or more stormwater BMPs.
RIPARIAN
Belonging or related to the bank of a river, stream, lake, pond or impoundment.
RUNOFF COEFFICIENT
The fraction of total rainfall that exits at the outfalls from a site.
SEDIMENT
Solid material moved by erosion and deposited away from its point of origin.
SEDIMENT CONTROL
Any Best Management Practices (BMP) that prevents eroded sediment from leaving a site.
SETBACK
With respect to a stream, the area established by Article III of this Chapter extending beyond any buffer applicable to the stream.
SHALL
The word "shall" is mandatory.
SILT TRAPS AND 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 of stormwater runoff.
SITE
A lot or parcel of land.
SITE DEVELOPMENT
Altering terrain, vegetation and/or demolishing or constructing improvements.
STABILIZATION
The use of Best Management Practices (BMP) that prevent exposed soil from eroding from a land disturbance site.
START OF CONSTRUCTION
The first (1st) land disturbance activity associated with a development.
STOP WORK ORDER
An order issued that requires that all construction activity on a site be stopped.
STORMWATER AUTHORITY
The department or agency, and its authorized agents, which is responsible for coordinating the review, approval, and permit process as defined by this Chapter.
STORMWATER BEST MANAGEMENT PRACTICE (BMP)
A measure, either structural or non-structural, that is determined to be the most effective, practical means of preventing or reducing point source or non-point source pollution inputs to stormwater runoff and water bodies.
STORMWATER DESIGN MANUAL
An engineering and/or project review document maintained by the City containing technical standards and specifications, policies, procedures, and other materials deemed appropriate by the City to assist with compliance with the provisions of this Chapter.
STORMWATER HOTSPOT
An area where land use or activities generate highly contaminated runoff, with concentrations of pollutants in excess of those typically found in stormwater.
STORMWATER MANAGEMENT
The use of structural or non-structural practices that are designed to reduce stormwater runoff pollutant loads, discharge volumes, peak flow discharge rates and detrimental changes in stream temperature that affect water quality and habitat.
STORMWATER POLLUTION PREVENTION PLAN (SWPPP)
A management plan, the purpose of which is to ensure the design, implementation, management and maintenance of Best Management Practices (BMP) 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 City 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.
STORMWATER RUNOFF
Flow on the surface of the ground, resulting from precipitation.
STREAM
Any stream, beginning at:
1. 
All natural watercourses depicted by a solid or dashed blue line on the most current United States Geological Survey (U.S.G.S.) 7.5 Minute Series (Topographic) Maps for Missouri; or
2. 
A point in the stream channel with a drainage area of twenty-five (25) acres or more.
STREAM BANK
The top of the sloping land that contains the stream channel and the normal flows of the stream. Where no established top-of-bank can be determined, the stream bank will be the "ordinary high water mark" as defined by the Corps of Engineers in Title 33 of the Code of Federal Regulation, Part 3283.3.
STREAM BUFFER
An area of land at or near a stream bank, wetland, or water body that has intrinsic water quality value due to the ecological and biological processes it performs or is otherwise sensitive to changes which may result in significant degradation to water quality.
STREAM CHANNEL
The portion of the watercourse that contains the base flow of the stream.
WATER QUALITY VOLUME (WQV)
The storage needed to capture and treat stormwater runoff volume from the one (1) year rainfall event. Numerically (WQv) will vary as a function of long-term rainfall statistical data, but is currently equal to a two and one-half (2.5) inch rainfall in twenty-four (24) hours.
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.