Policy paper

Exercise Watermark: review of Environment Agency response

A summary of the Environment Agency's participation in the multi-agency 'Exercise Watermark' and the lessons learned.

This publication was withdrawn on

This report describes the Environment Agency’s involvement in Exercise Watermark and the key lessons learnt. Since publication we have implemented actions to address these, and have conducted further reviews of incidents which have occurred since. This report reflects a situation relevant at the time of publication which has now changed.


Exercise Watermark: Better Preparing us for Flooding

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Exercise Watermark was the biggest and most successful national flood exercise (practice) ever held in the UK. It was led by Defra and the Welsh Government. The Environment Agency planned, managed and delivered it to test the nation’s response to severe and widespread flooding.

This summary describes what the Environment Agency did before and during Exercise Watermark, highlighting our response to widespread flooding incidents and how we work with other incident responders and communities to ensure that everybody is ready when flooding occurs.

Published 31 October 2011