10.2.7 Surface Water Drainage

closeddate_range22 Dec, 2020, 9:00am - 12 Mar, 2021, 5:00pm
10.2.7 Surface Water Drainage

Surface water drainage systems are designed to channel stormwater (rainwater) to the nearest suitable river.  Rain falling on impervious surfaces is usually directed into surface water drainage systems.  Best practice is to separate the surface water drainage system from the foul drainage system to maximise the efficiency of our waste water treatment plants. 

Surface water drainage systems are effective at transferring surface water quickly, but they can cause the volume of water in the receiving watercourse to increase more rapidly thereby increasing flood risk.  Sustainable Drainage Systems (SuDS) can play a role in reducing and managing run-off to surface water drainage systems as well as improving water quality.