DWA Industry Guide Watermanagement, Wastewater-Waste

4.3.1 Petrol separators

4.3.2 Grease traps

4.3.3 Oil separators

4.4.2 bridge drains

4.4.3 Drainage channels, slot channels

4.4.4 House, courtyard and street outlets

4.6.12 Manhole covers

4.6.21 street inlets

4.8.3 treatment of stormwater

4.8.5 stormwater retention basins

4.8.9 sedimentationsplants (for stormwater)

4.8.10 infiltration

6.1.1 Outlet channels, outlet pipes