Infiltration reduction plans

Our infiltration reduction plans continue to reduce the risk of groundwater entering public and private sewers and drains.

We proactively monitor, inspect and line sewers to identify and reduce infiltration which can lead to sewer flooding. We also work with partners, including the Environment Agency, councils and customers, to reduce infiltration and inflows across the wider drainage network, such as private sewers and highway drains. 

Infiltration reduction plan summaries

These summaries provide an update for our priority catchments including last year’s groundwater situation; a summary of our action plan to reduce groundwater infiltration and how the area is performing. View the Regional report which covers all our catchments.

Drainage and Wastewater Management Portal