Sustainable Drainage System Terms A-Z
D
design criteria
A set of standards agreed by the developer, planners and regulators that the proposed system should satisfy.
detention basin
A vegetated depression, normally is dry except after storm events constructed to store water temporarily to attenuate flows. May allow infiltration of water to the ground.
diffuse pollution
Pollution arising from land-use activities (urban and rural) that are dispersed across a catchment, or sub-catchment, and do not arise as a process effluent, municipal sewage effluent, or an effluent discharge from farm buildings.
dry
Free of water under dry weather flow conditions. |
