(A) For the purpose of this subchapter, certain terms or words are defined. The words and terms used shall be interpreted as follows:
(1) The word
PERSON includes a firm, association, organization, partnership, trust, company, corporation, or other legal entity, as well as an individual.
(2) The present tense includes the future tense, the singular number includes the plural, and the plural number includes the singular.
(3) The word
SHALL is a mandatory requirement; the word MAY is a permissive requirement; the word SHOULD is a preferred requirement;
(4) The word
LOT includes the words TRACT, PLOT OR PARCEL; and
(5) Any word or term not defined herein shall be given a meaning found in a standard English dictionary.
(B) For purposes of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
ADMINISTRATIVE AUTHORITY. Storm Water Utility Department Board.
AGRICULTURAL LAND USE. Use of land for the production of animal or plant life including forestry, pasturing or yarding livestock and planting, growing, cultivating, and harvesting crops for human or livestock consumption.
BOARD. Storm Water Utility Department Board.
CAPACITY OF A STORM DRAINAGE FACILITY. The maximum flow that can be conveyed or stored by a storm drainage facility without causing damage to public or private property.
CHANNEL. A natural or artificial watercourse which periodically or continuously contains moving water or which forms a connecting link between two bodies of water. It has a defined bed and banks which serve to confine the water.
CITY STAFF or CITY PLAN COMMISSION STAFF. A representative from each of the following departments shall make up the CITY STAFF: Planning, Street, Wastewater, Engineering, Stormwater.
COMMERCIAL LAND USE. Use of land for the manufacturing, wholesale or retail sale of goods or services.
COMPENSATORY STORAGE. An artificial volume of storage within a floodplain used to balance the loss of natural flood storage capacity when artificial fill or structures are placed within the floodplain.
CONTIGUOUS. Adjoining or in actual contact with.
CULVERT. A closed conduit used for the passage of surface drainage water under a roadway, railroad, canal or other impediment.
DETENTION BASIN. A facility constructed or modified to restrict the runoff of stormwater to a prescribed maximum rate, and to detain for a specified period of time the excess waters that accumulated upstream from the outlet.
DETENTION STORAGE. A manhole having a vertical drop pipe connecting the inlet pipe to the elevation of the outlet pipe. The vertical drop pipe shall normally be located immediately outside the manhole.
DRY-BOTTOM DETENTION BASIN. A basin designed to be completely dewatered after having provided its planned detention of runoff during a storm event.
EROSION. The detachment and movement of soil, sediment or rock fragments by water, wind, ice or gravity.
EROSION AND SEDIMENT CONTROL PLAN. A written description and drawings of pertinent information concerning erosion and sediment control measure designed to meet the requirements of this subchapter.
FLOOD or FLOODWATER. Water that overflows the banks of a lake or watercourse.
FLOOD ELEVATION. The maximum level of high waters for a flood of a given return period and rainfall duration.
FLOOD HAZARD AREA. Any floodplain, floodway, floodway fringe, or any combination which is subject inundation by the regulatory flood or any floodplain as delineated by Zone A on the current Flood Hazard Boundary Map of the Federal Emergency Management Agency.
FLOOD PROTECTION GRADE. The area adjoining the river or stream that has been or may be covered by floodwaters. It consists of both the floodway and floodway fringe.
FLOODPLAIN. The area adjoining the river or stream which has been or may covered by floodwaters. It consists of both the floodway and floodway fringe.
FLOODWAY. See REGULATORY FLOODWAY.
FLOODWAY FRINGE. That portion of the floodplain lying outside the floodway that is inundated by the regulatory flood.
FOOTING DRAIN. A drainpipe installed around the exterior of a basement wall or foundation or located in a crawl space to prevent water from entering a basement or crawl space.
GRADIENT. The inclination or slope of a channel, conduit or natural ground surface expressed a ration of the vertical rise or fall to the corresponding horizontal distance.
IMPACT AREAS. Areas defined by the Board which are unlikely to be easily drained because of one or more factors including, but not limited to, any of the following: soil type; topography; land where there is not an adequate outlet; a floodway or floodplain; land within 75 feet of each bank of legal drain or within 75 feet from the centerline of any legal tile drain; or within recorded drainage easement of a legal drain.
IMPROVEMENT LOCATION PERMIT. A permit stating that the proposed erection, construction, enlargement or moving of a building or structure complies with the provisions of this subchapter.
INLET. An opening into a storm sewer system for the entrance of surface storm water runoff, more completely described as a storm sewer inlet.
JUNCTION CHAMBER. Structure used to facilitate the flow from one or more conduits into a main conduit.
LAND DISTURBING ACTIVITY or NONAGRICULTURAL LAND DISTURBING ACTIVITY. Any man-made change of the land surface including removing vegetative cover, excavating, filling, transporting, and grading. It includes any activity requiring a permit, but does not include agricultural land uses.
MANHOLE. Storm sewer structure through which a person may enter to gain access to a storm sewer or enclosed structure. A MANHOLE may also be an inlet for the storm sewer system.
OUTFALL. The point or location where storm runoff discharges from a sewer, channel or detention facility.
PEAK FLOW. The maximum rate of flow of water at a given point in a channel or conduit resulting from a specified storm or flood of a given return period or duration.
PERIMETER DRAIN. A tile drain located around an absorption field in compliance with regulations.
RAINFALL INTENSITY. The rate of rainfall expressed as the amount of rain occurring within a given duration, normally expressed in inches per hour.
REACH. A specified length of river, channel or conduit.
REGULATED AREA. All of the land under the jurisdiction of the Board.
REGULATORY FLOOD. A flood with a peak having a probability of occurrence of 1% in any given year, which is commonly referred to as a “100-year flood” as calculated by a method and procedure that is acceptable to the Board. If a permit for constriction in the floodway is required by the Indiana Department of Natural Resources, the regulatory peak discharge shall be calculated by the method and procedure acceptable to the Board and the Indiana Department of Natural Resources.
REGULATORY FLOODWAY. The channel of a river or stream and those portion of the floodplain adjoining the channel which are reasonably required to carry and discharge the peak flow of the regulatory flood of any river or stream
RELEASE RATE. The amount of water released from a stormwater control facility per unit of time.
RETURN PERIOD. The average interval of time within which a given rainfall event will be equaled or exceeded once. A flood having a return period of 100 years has a 1% probability of being equaled or exceeded in any one year.
RUNOFF. The portion of precipitation from such sources as rainfall, snow melt, or irrigation water that flows over or under the ground surface and arrives at the point of consideration as surface water.
SEDIMENT. Material of soil and rock origin transported, carried, or deposited by water.
SILTING BASIN. A structure used to dissipate the energy and/or velocity of flowing water.
SIPHON. A closed conduit, a portion of which lies above the hydraulic grade line resulting in a pressure less than atmospheric and requiring a vacuum within the conduit to start flow. An inverted siphon is used to carry flow under an obstruction.
SITE. The entire area included in the legal description of the land on which the land disturbing activity is proposed in the permit application.
SPILLWAY. A waterway in or about a hydraulic structure for the escape of excess water.
STORAGE DURATION. The length of time that water may be stored in any stormwater control facility.
STORM SEWER. A closed conduit for conveying collected stormwater.
STORMWATER DRAINAGE SYSTEM. All means, natural or man-made, used for conducting stormwater to, through or from a drainage area.
SUBSURFACE DRAIN. A tile drain installed for lowering the ground water table.
URBANIZATION. The development, change or improvement of any parcel of land consisting of one or more lots for residential, commercial, industrial, instructional, recreational or public utility purposes.
WATERCOURSE. Any natural or man-made drainage way having a defined channel and banks and into which stormwater runoff or floodwaters flow either regularly intermittently.
WATERSHED. Drainage area.
WET-BOTTOM DETENTION BASIN/RETENTION BASIN. A basin designed to retained a permanent pool of water plus capacity to detain and release excess runoff.
WETLANDS. Those areas which have hydric soils, that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that, under normal circumstances, do support a prevalence of vegetation typically adapted for life in saturated soil conditions. WETLANDS generally include swamps, marshes, bogs, and similar areas.
(Ord. 2-2010, passed 3-8-10)