Water Loss Control Manual
With numerous tables, diagrams, charts, graphs, photographs, and basic explanations, this book examines every aspect of water loss and provides simple, effective, tested solutions.
TABLE OF CONTENTS Water Loss Control Manual
10.6: CASE STUDY THREE Severn Trent Leakage Management Process
10.6 CASE STUDY THREE
Severn Trent Leakage Management Process
Martin Kane
Overview
This case study describes how Severn Trent (ST) has harnessed new technology as part of its leakage strategy and achieved a step change in leakage performance. Critical to ST s success has been the deployment of a device called Permalog, which has allowed the end-to-end process of leakage detection and repair to be reengineered. Permalog is not a panacea in and of itself. It is the way it is deployed and the overall leakage process within which it sits that delivers real business benefit.
Severn Trent
The U.K. operation of Severn Trent provides water services to 8 million people across an area of 8000 mi 2. The catchment includes the U.K. s Second City of Birmingham and 10 other major industrial cities in central England that hold a large proportion of the engineering and industrial base. Leakage is given a special focus within the company s distribution system operations, with all activity and management reporting to a Leakage Process Manager.
Background
Severn Trent was originally formed in 1974 as part of a major reorganization of the U.K. water industry. Leakage levels gradually rose from then until the early 1980s under a generally passive approach to detection. Leakage was not one of the more visible targets for the water industry, and the government was generally relaxed about the figures. In 1983, the 3-year average leakage level was 574 ML/day or 30 percent of water supplied. From this time on an active...
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