Legal Documents of Maryville

As used in this chapter, unless the context clearly indicates otherwise, the following definitions apply:

1. "Credit" means a conditional reduction in the amount of a stormwater service charge to an individual property based on the provision and continuing presence of an effectively maintained and operational on-site stormwater system or facility, or the provision of a service or activity by the property owner, which system, facility, service, or activity reduces the stormwater utility's cost of providing stormwater services and facilities. Credits for on-site stormwater systems shall be generally proportional to the affect that such systems have on the peak rate of runoff from the individual property. "Credits" shall be defined and implemented in a City of Maryville Stormwater Credit Policy Manual which shall be produced by the city engineer, and changed as deemed necessary at the sole discretion of the city engineer.
2. "Customers of the stormwater utility" includes all persons, properties, and entities served by and/or benefiting from the utility's acquisition, management, maintenance, extension, and improvement of the stormwater management programs, systems, and facilities and regulation of public and private stormwater systems, facilities, and activities related thereto, and persons, properties, and entities which will ultimately be served or benefited as a result of the stormwater management program.
3. "Detached dwelling unit" means developed land containing one (1) structure which is not attached to another dwelling and which contains one (1) or more rooms with a bathroom and kitchen facilities designed for occupancy by one (1) family. "Detached dwelling units" may include houses, manufactured homes, and mobile homes located on one (1) or more individual lots or parcels of land. Developed land may be classified as a detached dwelling unit despite the presence of incidental structures associated with residential uses such as garages, carports, or small storage buildings. "Detached dwelling unit" can also include developed land that has a non-residential use of a dwelling unit designed for occupancy for one (1) family, so long as such use does not result in additional impervious areas, such as parking spaces, impervious surfaced playgrounds, or structures or additions to the building which are used as offices, storage facilities, meeting rooms, classrooms, houses of worship, or similar non-residential uses. "Detached dwelling unit" shall not include developed land containing: manufactured homes and mobile homes located within manufactured home or mobile home parks where the land is owned by others than the owners of the manufactured homes or mobile homes, or multiple-unit residential properties.
4. "Developed land" means property altered from a natural state by construction or installation of more than two hundred (200) square feet of impervious surfaces as defined in this chapter.
5. "Duplexes and triplexes" means developed land containing two (2) (duplex) or three (3) (triplex) attached residential dwelling units located on one (1) or more parcels of land.
6. "Equivalent residential unit (ERU) of impervious area" means the median impervious coverage of detached dwelling unit properties in the City of Maryville as determined by the city, and shall be used as the basis for determining stormwater service charges to detached dwelling unit properties or classes of detached dwelling unit properties and other properties. Two thousand, four hundred (2,400) square feet of impervious area shall be one (1) equivalent residential unit (ERU).
7. "Flood control facilities" means all natural and human-made conveyances and structures for which the partial or full purpose or use is to convey surface flood runoff water within the jurisdictional boundaries of Maryville. This includes all natural conveyances for which the city has assumed a level of maintenance responsibility, to which the city has made improvements against the flooding of which the city must make provision to protect public and private property, or for which the city is accountable under federal or state regulations for protecting the water quality within its jurisdictional boundaries.
8. "Impervious surfaces" means those areas which prevent or impede the infiltration of stormwater into the soil as it entered in natural conditions prior to development. Common impervious areas include, but are not limited to, rooftops, sidewalks, walkways, patio areas, driveways, parking lots, storage areas, compacted gravel and soil surfaces, awnings and other fabric or plastic coverings.
9. "Multiple dwelling unit residential properties" means developed land whereon four (4) or more attached residential dwelling units are located and shall include, but not be limited to, apartment houses, condominiums, townhomes, attached single-family homes, boarding houses, group homes, hotels and motels, retirement centers, and other structures in which four (4) or more family groups commonly and normally reside or could reside. In the application of stormwater service charge rates, multiple dwelling unit properties shall be treated as other developed lands. However, "multiple dwelling unit residential properties" where individual residential dwelling units are owned independently, such as residential condominiums, may be treated as detached dwelling unit properties in the application of stormwater service charge rates.
10. "Other developed land" means, but shall not be limited to, multiple dwelling unit residential properties, manufactured home and mobile home parks, commercial and office buildings, public buildings and structures, industrial and manufacturing buildings, storage buildings and storage areas covered with impervious surfaces, parking lots, parks, recreation properties, public and private schools and universities, research stations, hospitals and convalescent centers, airports, agricultural uses covered by impervious surfaces, water reservoirs, and water and wastewater treatment plants.
11. "Stormwater" means stormwater runoff, snow melt runoff, surface runoff, street wash waters related to street cleaning or maintenance, infiltration (other than infiltration contaminated by seepage from sanitary sewers or by other discharges) and drainage.
12. "Stormwater management facilities" means those natural and human-made drainage structures, conveyances, conduits, combined sewers, sewers, and all device appurtenances by means of which stormwater is collected, transported, pumped, treated or disposed of.
13. "Stormwater service charge" means the stormwater management service charge or charges applicable to a parcel of developed land, which charge shall be reflective of the City of Maryville stormwater utility's cost of providing stormwater management services and facilities. Stormwater service charge may also be termed "stormwater utility service charge." (1999 Code, § 19-503)