§ 255.010. Definitions.

For the purposes of this Chapter, the following words and phrases shall have the meaning set forth in this Section:

BEST MANAGEMENT PRACTICES (BMPs)

Schedules of activities, general good housekeeping practices, pollution prevention, educational practices, maintenance procedures to prevent or reduce the discharge of pollutants directly or indirectly to stormwater, receiving waters, or stormwater conveyance systems.

BUILDING PHASE OF DEVELOPMENT

Period of construction activity when a portion(s) of a common plan of development or sale requires a building permit.

CLEARING

Any activity that removes the vegetative surface cover.

COMMON PLAN OF DEVELOPMENT OR SALE

A contiguous area where multiple separate and distinct land disturbing activities may be taking place at different times, on different schedules, but under one (1) proposed plan which may, include, but is not limited to, any announcement or piece of documentation (including a sign, public notice or hearing, sales pitch, advertisement, drawing, permit application, zoning request, computer design, etc.) or physical demarcation (including boundary signs, lot stakes, surveyor markings, etc.) indicating construction activities may occur on a specific plot.

CONSTRUCTION ACTIVITY

Such activities include but are not limited to clearing and grubbing, grading, excavating, demolition and other land disturbing actions.

CONSTRUCTION SITE

Any location where construction activity occurs.

CONTRACTOR

Any person performing or managing construction work at a construction site, including, but not limited to, any construction manager, general contractor or subcontractor, and any person engaged in anyone or more of the following: earthwork, pipework, paving, building, plumbing, mechanical, electrical, landscaping or material supply.

DISTURBED AREA

Area of the land's surface disturbed by any work or activity upon the property by means, including, but not limited to, grading; excavating; stockpiling soil, fill, or other materials; clearing; vegetation removal; removal or deposit of any rock, soil, or other materials; or other activities which expose soil. Disturbed area does not include the tillage of land that is zoned for agricultural use.

EARTHWORK

The disturbance of soil on a site associated with construction activities.

EROSION

The detachment and movement of soil or rock fragments by water, wind, ice or gravity.

EROSION AND SEDIMENT CONTROL PLAN

A plan that indicates the specific measures and sequencing to be used for controlling sediment and erosion on a development site during construction activity according to locally approved standards, specification, and guidance.

EROSION CONTROL

Measures that prevent soil erosion to the maximum extent practicable.

FINAL DRAINAGE PLAN

A plan that indicates the drainage characteristics of the completed project. The plan will also indicate the future conditions post-construction BMPs will be maintained under.

FINAL STABILIZATION

When all soil disturbing activities at the site have been completed, and vegetative cover has been established with a uniform density of at least seventy percent (70%) of pre-disturbance levels, or equivalent permanent, physical erosion reduction methods have been employed. For purposes of this Chapter, establishment of a vegetative cover capable of providing erosion control equivalent to pre-existing conditions at the site is considered final stabilization.

LAND DEVELOPMENT

Any land change, including, but not limited to, clearing, digging, grubbing, stripping, removal of vegetation, dredging, grading, excavating, transporting and filling of land, construction, paving, and any other installation of impervious cover.

LAND DISTURBANCE ACTIVITY

Any land development that may result in soil erosion from wind, water and/or ice and the movement of sediments into or upon waters, lands, or right-of-way.

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) STORM WATER DISCHARGE PERMIT

A permit issued by the EPA [or by a state under authority delegated pursuant to 33 USC § 1342(b)] that authorizes the discharge of pollutants to Waters of the State.

NON-STORMWATER DISCHARGE

Any discharge to the storm drain system that is not composed entirely of stormwater.

OPERATOR

The individual who has day-to-day supervision and control of activities occurring at the construction site. This can be the owner, the developer, the general contractor or the agent of one of these parties.

OWNER

The person who owns a facility, development, part of a facility, or land.

PERSON

Any individual, association, organization, partnership, firm, corporation, cooperative, limited liability company or other entity recognized by law.

PHASING

Clearing a parcel of land in distinct phases, with the stabilization of each phase before the clearing of the next.

POLLUTANT

Anything which causes or contributes to pollution. Pollutants may include, but are not limited to: paints, varnishes, and solvents; oil and other automotive fluids; non-hazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter, or other discarded or abandoned objects, ordinances, and accumulations, so that same may cause or contribute to pollution; floatables; pesticides, herbicides, and fertilizers; hazardous substances and wastes; sewage, fecal coliform and pathogens; dissolved and particulate metals; animal wastes; wastes and residues that result from constructing a building or structure; wastes and residues that result from mobile washing operations; and noxious or offensive matter of any kind.

POLLUTION

The presence in Waters of the State of any substances, contaminants, pollutants, or manmade or man-induced impairment of waters or alteration of the chemical, physical, biological, or radiological integrity of water in quantities or at levels which are or may be potentially harmful or injurious to human health or welfare, animal or plant life, or property or which unreasonably interfere with the enjoyment of life or property, including outdoor recreation unless authorized by applicable law.

POST-CONSTRUCTION

The general time period referenced in perpetuity from the approval for final acceptance of the construction phase of any construction activity.

PREMISES

Any building, lot, parcel or tract of land, or portion thereof, whether improved, or un-improved, and including adjacent sidewalks and parking strips.

RECEIVING WATERS

Any Waters of the State, including any and all surface waters that are contained in or flow in or through the State of Missouri; all watercourses, even if they are usually dry, irrigation ditches that receive municipal stormwater, and storm sewer systems owned by other entities.

REDEVELOPMENT

Any construction, alteration or improvement performed on a previously developed site.

SEDIMENT

Soil (or mud) that has been disturbed or eroded and transported naturally by water, wind or gravity, or mechanically by any person.

SEDIMENT CONTROL

Measures that prevent eroded sediment from leaving the site.

SITE

The land or water area where any facility or activity is physically located or conducted, including adjacent land used in connection with the facility or activity.

SPILL

A release of solid or liquid material, which may cause pollution of the MS4 or Waters of the State.

STABILIZATION

The use of practices that prevent exposed soil from eroding.

STORMWATER

Any surface flow, runoff, and drainage consisting entirely of water from any form of natural precipitation and resulting from such precipitation.

STORMWATER POLLUTION PREVENTION PLAN (SWPPP)

A document which describes the Best Management Practices and activities to be implemented by a person during the construction activities, which identifies sources of pollution or contamination at a site and the actions to eliminate or reduce pollutant discharges to stormwater, stormwater conveyance systems, and/or receiving waters.

SUBDIVISION DEVELOPMENT

Includes activities associated with the platting of any parcel of land into two (2) or more lots and all construction activity taking place thereon.

UTILITY AGENCY/CONTRACTOR

Private utility companies, public utility departments, or other utility providers contractors working for such private utility companies, or public entity utility departments, or other utility providers engaged in the construction or maintenance of utility lines and services, including water, sanitary sewer, storm sewer, electric, gas, telephone, television and communication services.

WASTEWATER

Any water or other liquid, other than uncontaminated stormwater, discharged from a facility.

WATERCOURSE

A natural or artificial channel through which water can flow.

WATERS OF THE STATE

Any and all surface and subsurface waters that are contained in or flow in or through the State of Missouri. The definition includes all watercourses, even if they are usually dry.

Ord. No. 16-008 §1, 6-13-2016