§ 50.31 DEFINITIONS.
   For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   DEVELOPED. The condition of real property altered from its natural state by the addition to or construction on such property of impervious ground cover or other manmade physical improvements that the hydrology of the property or a portion thereof is affected.
   DRAINAGE MASTER PLAN. The plan for managing storm drainage and surface water runoff facilities and features within MSD’s drainage service area and the drainage basins therein.
   DRAINAGE SERVICE AREA. The drainage service area shall mean all areas within Jefferson County not including Anchorage, Jeffersontown, St. Matthews and Shively, except as those areas or portions thereof are included in the district area by agreement with MSD. The term “district area” as used in this definition shall mean the service area of MSD as defined in KRS 76.005(3)
   DRAINAGE SERVICE CHARGE. The fee levied by the MSD upon all developed real property within the boundaries of the MSD’s drainage service area as authorized by this amendment.
   EQUIVALENT SERVICE UNIT (ESU). The measure of impervious ground cover for a typical single-family residential property and is used by MSD in assessing the drainage service charges for each parcel of property.
   IMPERVIOUS SURFACE. Those hard surface areas either which prevent or retard the entry of water into the soil in the manner that such water entered the soil under natural conditions pre-existent to development, or which cause water to run off the surface in greater quantities or at an increased rate of flow than that present under natural conditions pre-existent to development, including, without limitation, such surfaces as roof tops, compacted gravel, asphalt or concrete paving, driveways and parking lots, walkways, patio areas, storage areas or other surfaces which similarly affect the natural infiltration or runoff patterns existing prior to development.
   MSD. The Metropolitan Sewer District.
   NON-SINGLE FAMILY RESIDENT PROPERTIES or PARCELS. Properties or parcels which contain more than one residential structure or one residential structure with more than two residential dwelling units and institutional, commercial or industrial properties.
   RESIDENCE. A building or structure or portion thereof, designed for and used to provide a place of abode for human beings. The term RESIDENCE includes the term RESIDENTIAL and RESIDENTIAL UNIT as referring to the type of or intended use of building or structure.
   SINGLE FAMILY RESIDENTIAL PROPERTY or PARCEL. Any property or parcel which contains one structure with one or two residential dwelling units.
   SYSTEM. The entire system of flood protection and stormwater drainage and surface water runoff facilities owned or leased by the MSD or over which the MSD has right of use for the movement and control of storm drainage and surface water runoff, including both naturally occurring and manmade facilities.
   UNDEVELOPED. The condition of real property unaltered by construction or addition to such property by man of impervious ground cover or physical manmade improvements of any kind which change the hydrology of the property from its natural state.
(1994 Jeff Code, § 50.21) (Jeff. Ord. 32-1986, adopted and effective 12-19-1986; Lou. Metro Am. Ord. No. 275-2007, approved 12-6-2007)