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Review of Water Mains Serviceability Indicators and Condition Grading: Volume I - Serviceability Indicators
Price: £200
Ref: 07/RG/05/21
ISBN: 1 84057 466 6
This report presents the results of a review of potential new serviceability measures for focussing of investment in water distribution assets. The work carried out involved a review of current practice by water companies and other UK utility industries, consultation with UK water industry regulators and trials and subsequent analysis of selected new measures.
Three indicators were chosen to be the subject of industry trials: property-minutes of interruption; traffic disruption; and customer complaints. A further trial was conducted in relation to spatial methodologies.
A number of recommendations are made based on the outcome of the trials including that companies should carry out further testing of the property-minutes of interruption indicator in order to confirm the practicability of application and a list provided of indicators recommended for companies’ internal use.
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The Environmental Impact of Phosphorus from the Agricultural Disposal of Sewage Sludge - Stage 3
97/SL/02/4 - ISBN: 1 84057 013 XLaboratory, lysimeter and field studies continue to show wide variability the potential bioavailability of phosphorus in sewage sludge. Under operational rates of application, losses of phosphorus in run-off from plots recei... More...
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UKWIR/EA A Unified Methodology for the Determination of Deployable Output from Water Sources - Volume 1
00/WR/18/1 - ISBN: 1 84057 198 5This joint UKWIR/ Environment Agency project examined current practices for determination of surface water and ground water deployable output (DO) and concluded that a unified approach was both desirable and feasible. However... More...
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Performance of Fast Butt Fusion Jointing
99/WM/02/7 - ISBN: 1 84057 150 0A high productivity butt fusion welding process has been developed by Fusion Group. The process was evaluated on PE80 and PE100 pipe materials in sizes up to 400mm and compared against butt fusion joints prepared under conven... More...
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Estimating Legitimate Non- Household Night Use Allowances
99/WM/08/26 - ISBN: 1 84057 165 9This study has produced a robust and generalised methodology that can be used by individual companies to more accurately determine legitimate non-household metered use. This should improve the accuracy of regulatory reporting... More...
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A Review of Leakage - Updating Managing Leakage Methodology and Theory
97/WM/08/10 - ISBN: 1 84057 036 9The first update of 'Managing Leakage', the 1995 water industry report. Economics of leakage methodology, both short and long term is developed in detail. There are case studies on whole- life costing. Seven key areas of UKWI... More...
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