For purposes of this chapter:
(1) “Stormwater maintenance district” means an area in New Castle County, created under this chapter, that has ascertainable boundaries and provides efficient and economical stormwater maintenance.
(2) “Stormwater management” means a system of vegetative, structural, and other measures that does all of the following:
a. For water quantity control, controls the volume and rate of stormwater runoff which may be caused by land disturbing activities or activities upon the land.
b. For water quality control, controls adverse effects on water quality that may be caused by land disturbing activities or activities upon the land.