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23 <br />duration which will produce the maximum peak rate of runoff, for the watershed of <br />interest under average antecedent wetness conditions. <br />(293- -21I-:Water_ Dependent Structures" means a _structure for which -the _use - - <br />- Formatted: Font: +Headings (Cambria), 12 pt <br />requires access or proximity to or siting within surface waters to fulfill its basic purpose, <br />such as boat ramps, boat houses, docks, and bulkheads. Ancillary facilities such as <br />restaurants, outlets for boat supplies, parking lots and boat storage areas are not water <br />dependent uses. <br />(244 -22), "Wet Detention Pond" means a structure that provides for the stor_age_- - <br />- Formatted: Font: +Headings (Cambria), 12 pt <br />and control of runoff and includes a designed and maintained permanent pool volume. <br />(2} —23 "Vegetative Buffer" means an area of natural or established vegetation - _ <br />- Formatted: Font: +Headings (cambria),1z pc <br />directly adjacent to surface waters through which stormwater runoff flows in a diffuse <br />manner to protect surface waters from degradation due to development activities. -The - <br />- Formatted: Font: +Headings (Cambria), 12 pt <br />width of the buffer is measured horizontally from the normal pool elevation of impounded <br />structures, from the bank of each side of streams or rivers, and from the mean high water <br />line of tidal waters, perpendicular to the shoreline. <br />(2--'4— 24 :Vegetative Filter" means an area of natural or planted_yegetdtLon <br />- Formatted: Font: +Headings (Cambria), 12 pt <br />- -- <br />through which stormwater runoff flows in a diffuse manner so that runoff does not become <br />channelized and which provides for control of stormwater runoff through infiltration of <br />runoff and filtering of pollutants. -The defined length of the filter shall be provided for in - <br />- Formatted: Font: +Headings (Cambria), 12 pt <br />the direction of stormwater flow. <br />(2a) -25 "Oneyear, 24_hour storm" means a rainfall of an intensity expe cted_to_b_e_ - - <br />Formatted: Font: +Headings (Cambria), 12 pt <br />equaled or exceeded, on average, once in 12 months and with a duration of 24 hours. <br />(254- 2jk),"BMP" means Best Management Practice. - - - - <br />Formatted: Font; +Headings (cambric >, lz pt <br />(2- }- -27)-:Permeable_pavement "_ means paving material that absorbs water or - - <br />Formatted: Font: +Headings (Cambria), 12 pt <br />allows water to infiltrate through <br />ough the paving material. ermeable pavement materials__ -- - <br />Formatted: Font: +Headings (Cambria), 12 pt <br />include porous concrete, permeable interlocking concrete pavers, concrete grid pavers, <br />porous asphalt, and any other material with similarcharacteristics_ ggTpCCtcd gtg• !1 ^tl - - - <br />not be cansideFed permeable r <br />Formatted: Font: +Headings (Cambria), 12 pt <br />,(2?T2 $L"Residential - - - - - - - - pment_activities" has the same meaning as in 15A , - - <br />Formatted: Font: +Headings (Cambria), 12 pt <br />NCAC 02B .0202(54). _ <br />Formatted: Font: +Headings (Cambria), 12 pt <br />(28} --29 "Vegetative conveyance" means a permanent, designed waterway lined - - <br />Formatted: Font: +Headings (Cambria), 1z pt <br />_ <br />with vegetation that is used to convey stormwater runoff at a non - erosive velocity within <br />or away from a developed area. <br />History Note: Authority G.S 143 -213; 143 - 214.1; 143- 214.7; 143- 215.3(a)(1); <br />Eff. January 1, 1988; <br />Amended Ef. .. August 1, 2012 (see S.L. 2012 -143, s.l.(n); July 3, 2012; December 1, 1995; <br />September 1, 1995. <br />