ISBN: 1 84057 614 6
Published Date: 19/12/2011
This report identifies and reviews the wet weather spill monitoring and recording methods employed by the UK water and sewerage companies. Analysis was undertaken of spill, rainfall, and treatment works flow data along with completed questionnaires on the water companies' practices.
There are various protocols used for counting spills, which can result in significantly different totals. The report identifies issues that affect the usefulness of data for regulatory reporting and the need for improved access to rainfall data. It explores methods to determine the significance of spills recommending that a standard method should be agreed, and indicates that a common standard is required for spill event recording and for counting spills.