The Catchment Data Explorer (CDE) is an online data download and visualization tool for river basin planning data.
Use the CDE to navigate to catchments and water bodies, view catchment summaries and download data. You can search for catchments of interest using a map or by postcode, grid reference and place name. Data can be downloaded from the site, there is a list of useful web links, a glossary and a help section. The underlying data in the Catchment Data Explorer is stored as linked data and is made available under an Open Government License for reuse.
The site now holds data from the updated river basin management plans.
A briefing note explaining the data is here
A release note detailng the contents of the latest version is here