§ 151.04  DEFINITIONS.
   For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
   100-YEAR RETURN FREQUENCY STORM.  A storm that may be expected to be equal or exceeded on an average of once in any period of 100 years.  In any given year there is a 1% chance that this storm will occur.
   ADMINISTRATOR.  City Engineer or its consulting engineer or firm, of the Village of Roscoe.
   CONTROL STRUCTURE.  A facility constructed to regulate the volume of stormwater runoff that is released during a specific length of time.
   DRY BOTTOM STORMWATER STORAGE AREA.  A facility that is designed to be normally dry and which accumulates excess stormwater only during periods when the restricted stormwater runoff release rate is less than the stormwater inflow rate.
   EXCESS STORMWATER.  That portion of stormwater runoff which exceeds the transportation capacity of storm sewers or natural drainage channels serving a specific watershed.
   EXCESS STORMWATER PASSAGEWAY. A channel formed on the surface of the soil to carry stormwater runoff through a specific area from dominant to servient estates.
   NATURAL DRAINAGE. Water which flows by gravity in channels formed by the true surface topography of the earth prior to changes made by the efforts of man.
   NATURAL SAFE STORMWATER DRAINAGE CAPACITY.  A term used to describe the quantity of stormwater runoff that can be transported by means of a channel, passage, conduit, tube, duct, or combination thereof, in such a manner that the elevation of the water does not rise significantly above the level of the adjacent soil surface.
   PERSON.  An individual, public or private corporation, government, partnership, or unincorporated association.
   POSITIVE GRAVITY OUTLET.  A term used to describe the drainage of an area in a manner that will ensure complete removal of all surface water by means of natural gravity.
   PRESIDENT AND BOARD OF TRUSTEES.  The President and Board of Trustees of the Village of Roscoe.
   RECOGNIZED AGENCY. A governmental unit or agency which has statistically and consistently examined local, climatic, and geologic conditions and maintained records as they apply to stormwater runoff, e.g., U.S. Weather Bureau, University of Illinois Engineering Experiment Station, and Illinois State Water Survey.
   STORMWATER RUNOFF.  Water that results from precipitation which is not absorbed by soil or plant material.
   STORMWATER RUNOFF RELEASE RATE. The rate at which stormwater runoff is released from dominant to servient land.
   STORMWATER STORAGE AREA.  An area designated to temporarily accumulate excess stormwater.
   STRUCTURE.  Anything which is constructed or erected with a fixed location on the ground or attached to something having a fixed location on the ground.  Among other things, STRUCTURES include buildings, fences, signs, mobile homes, swimming pools, and walls.
   TRADITIONAL AGRICULTURAL USES.  Uses commonly classed as agricultural or horticultural, including forestry, crop farming, truck gardening, wholesale nursery operations, animal husbandry, the operation of any machinery or vehicles incidental to those uses, and the construction of single-family dwellings and other farm structures incidental to and typically associated with those uses.  Agribusiness uses are not considered to be traditional agricultural uses and include but are not limited to commercial grain elevators, commercial facilities for grain storage, drying, or other processing, commercial feed, seed, or fertilizer manufacturing, processing, or sales; commercial farm machinery repair or sales; or any other agriculture-related use, which substantially increases the size of paved or compacted areas which may cause significant or measurable increases in stormwater runoff.
   TRIBUTARY WATERSHED.  The entire catchment area that contributes stormwater runoff to a given point.
   VILLAGE. The Village of Roscoe, Illinois.
   WET BOTTOM STORMWATER STORAGE AREA.  A facility that contains a body of water and which accumulates excess stormwater during periods when the restricted stormwater runoff release rate is less than the stormwater inflow rate.
(Prior Code, § 13-4)  (Ord. 1986-8, passed 5-7-1987; Ord. 1997-20, passed 5-7-1998)