Sec. 12.8. Stormwater Management

12.8.1. Stormwater Management

A. Any land-disturbing activity may be required to provide stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. management facilities or make other improvements to the existing drainage system to address water quantity concerns, water quality concerns, or both if the proposed developmentClosed Pursuant to NCGS 160D-102, any of the following: a. The construction, erection, alteration, enlargement, renovation, substantial repair, movement to another site, or demolition of any structure. b. The excavation, grading, filling, clearing, or alteration of land. c. The subdivision of land as defined in G.S. 160D-802. d. The initiation or substantial change in the use of land or the intensity of use of land. will increase potential flood damages to existing properties or significantly increase pollutant levels in downstream receiving waters.

B. StormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. management facilities adequate to accommodate a ten-year or greater storm shall be provided that generally follow existing natural drainage systems. Piping and modification of streamsClosed A body of concentrated flowing water in a natural low area or natural channel on the land surface. and other natural water courses should be minimized and shall be considered on a case-by-case basis to determine if it is necessary and environmentally sound. Such facilities shall be designed, constructed and maintained to minimize flooding, protect downslope properties, preserve water quality, and adequately transport existing and projected stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. flows.

C. DevelopmentClosed Pursuant to NCGS 160D-102, any of the following: a. The construction, erection, alteration, enlargement, renovation, substantial repair, movement to another site, or demolition of any structure. b. The excavation, grading, filling, clearing, or alteration of land. c. The subdivision of land as defined in G.S. 160D-802. d. The initiation or substantial change in the use of land or the intensity of use of land. plans, site plansClosed An accurately scaled development plan that shows existing conditions on a site as well as depicting details of proposed development., and preliminary platsClosed A map indicating the proposed layout of a development and related information that is submitted for preliminary review. shall require a stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. impact analysis that complies with the requirements of the City Public Works Director or County Engineer, or appropriate designees, and which determines the impact of the increased stormwater runoffClosed The direct runoff of water resulting from precipitation in any form. on downstream stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. facilities and properties.

D. The need for stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. management facilities to address offsite impacts shall be determined by the City Public Works Director or County Engineer, or their designees, as appropriate.

12.8.2. Regulation

A. City Stormwater

City stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. facilities shall be regulated pursuant to the applicable City code.

B. County Stormwater

County stormwaterClosed The flow of water which results from precipitation and which occurs immediately following rainfall or snowmelt. facilities shall be regulated pursuant to the applicable County code.