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Article 10: Definitions
<br /> Section 10.1: Definitions
<br />
<br />Orange County, North Carolina – Unified Development Ordinance Page 10-10
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<br />Detention Pond
<br />A engineered stormwater control consisting of a pond constructed and maintained in accordance with
<br />Appendix A of this Ordinance, which allows for pollutants to settle and provides for the gradual release of
<br />the impounded water. The detention pond is the Best Management Practice which must be used within
<br />protected watersheds when engineered stormwater controls are required. (See also, Best Management
<br />Practices and Engineered Stormwater Controls)
<br />Development
<br />Any constructed change to improved or unimproved real estate, including, but not limited to, buildings or
<br />other structures, mining, dredging, filling, grading, paving, excavation or drilling operations, or storage of
<br />equipment or materials. Also includes any land-disturbing activity which adds to or changes the amount
<br />of impervious or partially impervious cover on a land area or which otherwise decreases the infiltration of
<br />precipitation into the soil.
<br />
<br />Development Activity
<br />In the context of property encumbered by Special Flood Hazard Area this term includes any activity
<br />defined as Development which will necessitate a Floodplain Development Permit. This includes
<br />buildings, structures, and non-structural items, including but not limited to: fill, bulkheads, piers, pools,
<br />docks, landings, ramps, and erosion control/stabilization measures.
<br />Development, Existing
<br />In the context of Stormwater provisions of this Ordinance for projects that do not require a State permit,
<br />shall be defined as those projects that are built, or those projects that at a minimum have established a
<br />vested right under North Carolina zoning law as of the effective date of Orange County’s Water Supply
<br />Watershed Protection Ordinance, or such earlier time that other Orange County ordinances shall specify,
<br />based on at least one of the following criteria:
<br />a) Substantial expenditures of resources (time, labor, money) based on a good faith reliance upon
<br />having received a valid Orange County approval to proceed with the project, or
<br />b) Having an outstanding building permit in compliance with G.S. 153A-344.1 or G.S. 160A-385.1,
<br />or
<br />c) Having an approved site specific or phased development plan in compliance with G.S. 153A-
<br />344.1 or G.S. 160A-385.1.
<br />For projects that require a State permit, such as landfills, NPDES wastewater discharges, land application
<br />of residuals, and road construction activities, existing development shall be defined as those projects that
<br />are built or those projects for which a State permit was issued prior to August 3, 1992.
<br />Development Intensity Definitions
<br />(See Non-residential Land Area, Non-residential Floor Area, Residential Floor Area, Floor Area Ratio,
<br />Open Space, Open Space Ratio, Livability Space, Livability Space Ratio, Recreation Space, Recreation
<br />Space Ratio, Pedestrian/Landscaped Space, Pedestrian/Landscaped Space Ratio.)
<br />
<br />Digital Flood Insurance Rate Map (DFIRM)
<br />The digital official map of a community, issued by the Federal Emergency Management Agency (FEMA),
<br />on which both the Special Flood Hazard Areas and the risk premium zones applicable to the community
<br />are delineated.
<br />Direct Light
<br />Light emitted directly from the lamp, off of the reflector diffuser, or through the refractor or diffuser lens, of
<br />a luminaire.
<br />Discharge
<br />The addition of any human-induced effluent either directly or indirectly to state surface waters.
<br />Discharge, Domestic Wastewater
<br />Sewage, unprocessed industrial wastewater, other domestic wastewater, or any combination of these
<br />items. Domestic wastewater includes, but is not limited to, liquid waste generated by domestic water
<br />using fixtures and appliances, from any residence, place of business, or place of public assembly, even if
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