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The Natural Rate of Rise in Leakage

Price: £100


Ref: 99/WM/08/22
ISBN: 1 84057 159 4

This research examines the theoretical and empirical determinants of the natural rate of rise in leakage (NRR) over time, in order to advance the development of an 'NRR Equation' which can be used to produce reliable estimates of the NRR over a wide variety of different DMA conditions. Once derived from a sound empirical basis, such a specification might not only be utilised to determine optimal DMA intervention and exit times and the unit costs of leakage control, but might also be appropriately calibrated in order to produce a measure for asset condition and deterioration.

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Leakage Estimation from Night Flow Analysis

99/WM/08/21 - ISBN: 1 84057 158 6

Existing methods for providing leakage estimates for reporting purposes, using data from continuously monitored areas are reviewed. Analysis concentrated on night use allowances and 15 minutes flow sampling intervals using s... More...

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A Manual of DMA Practice

99/WM/08/23 - ISBN: 1 84057 160 8

The manual provides guidance to staff engaged in managing district meter areas (DMAs). It guides the practitioner through the stages of : 1.  setting up and maintaining districts, 2 monitoring leakage, 3 se... More...

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Best Practice for Unmeasured Per Capita Consumption Monitors

99/WM/08/25 - ISBN: 1 84057 162 4

Within the annual water balance, water companies have to estimate unmeasured per capita consumption (PCC) for which various methods are available. The primary project objective was to develop best practice for estimating unme... More...

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Estimating Legitimate Non- Household Night Use Allowances

99/WM/08/26 - ISBN: 1 84057 165 9

This 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 9

The 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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