For the purpose of this chapter, the following definitions shall apply:
(1) "Natural storm water drainage system." The system of drainage ditches, channels, streams, creeks or rivers or any other means by which water is channeled to the low point in a drainage basin. Included in this definition are both naturally occurring and manmade drainage facilities. Also included in this definition are sinks, sinkholes, sinkhole retention areas, and floodways as defined under the rules and regulations of the National Flood Insurance Program.
(2) "Drainage basin." A naturally occurring area in which water will flow by gravity to a common sinkhole or stream.
(3) "Sinkhole." A hollow or depression in the land surface by which water flow, drains or otherwise enters the underground drainage system; also known as a "sink".
(4) "Sinkhole retention area." The area or basin surrounding sinkholes which provides water retention capacity and are further identified in the "SRA - Sinkhole Retention Area" district of the Cookeville Zoning Code.
(5) "Drainage ditch." Any natural or man-made ditch, way, or indention in the land surface through which water is channeled.
(1970 Code, § 4-1102)