Terms for D
DenitrificationDesign rainwater gain
Discharge head
Drain trap
Drainage
Drinking water
DWA A-117 worksheet
Terms 1 to 7 from 7
DWA A-117 worksheet
Worksheet of the DWA (Deutsche Vereinigung für Wasserwirtschaft, Abwasser und Abfall e.V. - German Association for Water Management, Wastewater and Waste) This code of practice describes the dimensioning of rainwater retention areas in the entire wastewater drainage between the property drainage system and the body of water.