Water research theme

Water

This programme area includes research into both the demand for water and the supply of water, with the concept of the supply/demand balance driving much of the work. Subject areas include headroom, demand management/water efficiency research. Water quality forms a large component of this research area, including epidemiology and microbiological studies, cryptosporidium, metals and algal toxins. Research also includes asset location, distribution operation and maintenance strategies (DOMS) and pipeline innovation, with leakage projects taking a high priority to help water companies reduce leakage to their economic levels.

Much of this research has been in collaboration with the regulators so that basic methods and frameworks can be agreed and applied.


Programme Lead(S)

Jeremy Heath

Leakage
SES Water

John A Haley

Drinking Water Quality & Health

John Haley

Drinking Water Quality & Health

Paul Merchant

Water Resources
South West Water Limited

Richard Amos

Water Resources
Dwr Cymru Welsh Water

 

Sub-categories



 

Projects


 

Reassessing the Risk and Control of Zebra Mussels in the UK Water Industry

Project Status Project Completed


 

Prevalence of viruses and somatic coliphage in UK waters - method development and data gathering (BQ4-D1)

Project Status Project Completed


 

A Briefing on Emerging Pathogens and Drinking Water Supplies

Project Status Project Completed


 

A Briefing on Microorganisms and Drinking Water Supplies - A Review of the Literature 2005-2006

Project Status Project Completed


 

A Briefing on Microorganisms and Drinking Water Supplies: A Review of the Literature 2003-2004

Project Status Project Completed


 

A Briefing on Microorganisms and Drinking Water Supplies: A Review of the Literature 2004-2005

Project Status Project Completed


 

A Review of Ct in Water Disinfection

Project Status Project Completed


 

Association of Eschericia Cocli 0157 Infection With Drinking Water and Assessment of Risks

Project Status Project Completed


 

Catchment to Consumer: Water Safety Plans Part 2

Project Status Project Completed


 

Drinking Water Safety Plans - Risk Based Approach

Project Status Project Completed


 

Drinking Water Safety Plans - Stakeholder Communications

Project Status Project Completed


 

Events Database - A Tool to Aid Drinking Water Safety Plan Assessments

Project Status Project Completed


 

GWRC A review of Current Knowledge on Waterborne Pathogens

Project Status Project Completed


 

GWRC Waterborne Pathogens - Report of the GWRC Research Strategy Workshop

Project Status Project Completed


 

Health Significance of Bacteria in Distribution Systems – Review of Literature for 1995- 1997

Project Status Project Completed


 

Health Significance of bacteria in distribution systems - Review of Mycobacterium SPP

Project Status Project Completed


 

Health Significance of Bacteria in Distribution Systems : Review of Aeromonas

Project Status Project Completed


 

Health Significance of Bacteria in Distribution Systems : Review of Yersinia

Project Status Project Completed


 

Health Significance of Heterotrophic Bacteria Growing in Water Distribution Systems

Project Status Project Completed


 

Impact of Service pipes on the Bacteriological Quality of Water Supplies

Project Status Project Completed


 

Influence of Phosphate on bacterial Growth in Water Systems

Project Status Project Completed


 

Integrating DOMS & Drinking Water Safety Plans

Project Status Project Completed


 

Maintaining Awareness of Animals in Water Distribution Systems

Project Status Project Completed


 

Practicalities of Determining if there is a Level of Gastrointestinal Illness in the Community related to Potable Water

Project Status Project Completed


 

Prevalence Study of Specific Bacterial Infections - Geographical Distribution of Aeromonas and Yersinia in the United Kingdom

Project Status Project Completed


 

Real Time On-line Monitoring of Contaminants in Water - Developing a Research Strategy from Utility Experiences and Needs

Project Status Project Completed


 

Review of the Microbial Implications of Climate Change for the Water Industry

Project Status Project Completed


 

Scoping Study on the Implications of Bacterial Pathogen Associations with Protozoa in Drinking Water

Project Status Project Completed


 

Statistical Associations between Coliform occurrences in Water Samples and Fluctuations inChemical, Physical and Biological Factors

Project Status Project Completed


 

Sulphite Reducing Clostridia in Drinking Water Supplies

Project Status Project Completed


 

The Epidemiology of Cryptosporidiosis in England & Wales 1983 - 1997

Project Status Project Completed


 

The Significance of Fungi in Drinking Water Distribution Systems

Project Status Project Completed


 

Validating the Cause of Coliforms in Drinking Water

Project Status Project Completed


 

BQ04-F01 - Horizon scan – Update of current knowledge of threats and mitigations

Project Status Project Commenced

In 2016, UKWIR commissioned a thorough review of knowledge across all areas that, at the time, were considered to be potential threats to the UK Water Industry reaching the BQ04 vision of achieving 100% drinking water compliance. A global literature review was complemented by extensive stakeholder engagement to set the scope of the study, to collate relevant knowledge and, most importantly, to tap into the insights of industry subject matter experts to best understand the likely risk posed by any identified gaps in knowledge. This valuable work has served to shape the BQ04 programme since then, helping to structure the research into a logical and deliverable project, with a clear strategic direction.

However, the world has changed surprisingly quickly over the last six years: the water industry is now facing calls for action in areas that were not identified as significant risks in the initial work, for example micro plastics, micro fibres, and PFAS/PFOS. Such contaminants, whether scientifically warranted or not, are high on the agenda of not only water quality regulators, but also the environmental lobby, the media and thus the public and politicians.

The world has also moved on in terms of the collective knowledge around the risks that were identified at the time, not least thanks to UKWIR’s efforts. It is now the right time to revisit this work, to update our knowledge with the latest research in this area, and to evaluate how the BQ04 programme is helping to address some of the gaps in knowledge identified in the original research.



 

Microsheets Service 2022-23

Project Status Project Commenced


 

Microsheets Service 2023-25

Project Status Project Commenced


 

Advancing the Science of Water: An International Technology Transfer Conference, Warwick1995

Project Status Project Completed


 

Aspects of Modelling Chlorine Decay In Water Distribution Systems

Project Status Project Completed


 

Benefits of Modelling Water Quality

Project Status Project Completed


 

Changes in the Quality of Treated Water During Storage

Project Status Project Completed


 

Chlorine and Monochloramine Demand of Materials for Drinking Water Distribution Systems

Project Status Project Completed


 

Comparison of AOC and BDOC with Surrogates for Determining Nutrients in UK Drinking Water

Project Status Project Completed


 

Distributing Drinking Water with Low or Zero Disinfectant Residual

Project Status Project Completed


 

Effect of District Meter Areas on Water Quality

Project Status Project Completed


 

Events Database - On-line Database of Events Affecting Drinking Water Quality

Project Status Project Completed


 

Hydraulic Characterisation of Deposits and Review of Sediment Modelling

Project Status Project Completed


 

Impacts of Distribution Systems Practices on Water Quality,Customer Relations and Regulatory Compliance

Project Status Project Completed


 

Migration Studies on Cement and Bitumen Coated Pipes

Project Status Project Completed


 

Operational and Mainenance Strategies for Maintaining Water Quality in Distribution Systems

Project Status Project Completed


 

Practical Guidelines for Mains Flushing

Project Status Project Completed


 

Predictive Statistical Analysis of Coliform Occurrences

Project Status Project Completed


 

Preventing Discolouration

Project Status Project Completed


 

Review of the Identification Systems for Heterotrophic Bacteria Isolated from Water Distribution Systems

Project Status Project Completed


 

Review of Water Quality Issues in Common Carriage

Project Status Project Completed


 

Strategic Review on Factors Controlling Microbiological and Chemical Quality of Water inDistribution Systems: Parts i-iv available as a set

Project Status Project Completed


 

Sulphite Reducing Clostridia in a Revised Drinking Water Directive

Project Status Project Completed


 

To Quantify the Effect of Different Source Waters on Bacterial Growth in Chemostat DistributionSystems

Project Status Project Completed


 

Toolboxes for Maintaining and Improving Drinking Water Quality

Project Status Project Completed


 

Understanding and Preventing Discoloured Water

Project Status Project Completed


 

Approaches for Controlling Plumbsolvency

Project Status Project Completed


 

Brass Fittings - A Source of Lead in Drinking Water?

Project Status Project Completed


 

Concentration of lead at customers taps': Trends in monitoring data 1990 to 1998

Project Status Project Completed


 

Concentration of Lead at Customer's Taps: Trends in Monitoring Data from 1990 - 1996

Project Status Project Completed


 

Concentration of Lead at Customers’ Taps: A Statistical Approach

Project Status Project Completed


 

Investigation into the Emerging Issue of Fluorapatite Formation

Project Status Project Completed


 

Maintaining and Improving Water Quality in Domestic Pipework and Fittings – Review ofDevelopments for Meeting Lead Compliance

Project Status Project Completed


 

Metals Arising from Domestic Pipework and Fittings

Project Status Project Completed


 

A Review of Chemical and Electrochemical Inactivation of Cryptosporidium

Project Status Project Completed


 

Application of Statistical Process Control in Water Treatment for Managing Cryptosporidium Risk

Project Status Project Completed


 

Cryptosporidium and Water Treatment: Particle and Spore Counting, GAC and ManganeseFiltration and Backwash Settlement

Project Status Project Completed


 

Cryptosporidium Removal during Water Treatment

Project Status Project Completed


 

Cryptosporidium: Implications for Variable Declining-rate Filtration

Project Status Project Completed


 

Establishing the Relationship between Farm Re-stocking and Cryptosporidia: The Caldew Catchment Study

Project Status Project Completed


 

International Collaborative Cell Culture and UV Studies

Project Status Project Completed


 

Monitoring Tools for the Operational Detection of the Rapid Influence of Surface Recharge on theQuality of Groundwater

Project Status Project Completed


 

Particle Counting and Bacterial Spore Analysis for Water Treatment Works Monitoring

Project Status Project Completed


 

Removal of Cryptosporidium during Water Treatment

Project Status Project Completed


 

Review of the Use of Tracers to Investigate Pathogen Transport and Attenuation in Groundwater

Project Status Project Completed


 

Second Edition of a Guidance Manual Supporting the Water Treatment Recommendations from the Group of Experts on Cryptosporidium

Project Status Project Completed


 

Statistical Process Control and Other Techniques for Managing Cryptosporidium Risk in Water Treatment

Project Status Project Completed


 

Theory and Guidance on Assessing and Managing Cryptosporidium Risk in Groundwaters

Project Status Project Completed


 

Transport and Fate of Cryptosporidium and Other Pathogens in Groundwater Systems

Project Status Project Completed


 

UV Inactivation of Cryptosporidium

Project Status Project Completed


 

WHO and EUREAU Support - Progress 2007-2009

Project Status Project Completed


 

Pesticide Risk Mapping and Catchment Interventions - Phase 2 members

Project Status Project Completed


 

Pesticide Risk Mapping and Catchment Interventions - Phase 1

Project Status Project Completed


 

International Guidance for Management of Toxic Cyanobacteria

Project Status Project Completed


 

GWRC - Bioanalytical Tools to Analyse Hormonal Activity in Environmental Waters - Review of the State of the Science

Project Status Project Completed


 

Toxicity & Health Advisory Service continuation of service 2022-25

Project Status Project Commenced


 

Assessment of the Performance of Wastewater Treatment Works in Removing Oestrogenic Substances

Project Status Project Completed


 

Endocrine Disrupting Chemicals National Demonstration Programme: Assessment of the Performance of WwTW in Removing Oestrogenic Substances

Project Status Project Completed


 

Scoping Study for a National Demonstration Programme on EDC Removal

Project Status Project Completed


 

Bromate from the use of Chlorine in Water Treatment

Project Status Project Completed


 

Inorganic Disinfection By- Products

Project Status Project Completed


 

Modelling the Formation of Disinfection By- products: A Feasibility Study

Project Status Project Completed


 

Review of the Mechanisms of Toxicity and Current Legislation of Chlorate and Chlorite

Project Status Project Completed


 

The Mechanism of Toxicity of Bromate and Chlorate - An Interim Report

Project Status Project Completed


 

Trichloroacetaldehyde in Water Supplies

Project Status Project Completed


 

Allergy and Dermatitis Associated with Domestic Water Supplies

Project Status Project Completed


 

Bioavailability of Metals from Drinking Water

Project Status Project Completed


 

Formation and occurrence of Bromophenols, Iodophenols, Bromoanisoles and Iodoanisoles inDrinking Water : An investigation of Taste and Odour Potential

Project Status Project Completed


 

Human Exposure to PAH from Sources other than Drinking Water

Project Status Project Completed


 

Mechanisms of carcinogenicity of trichloroethene (TCE) and tetrachloroethene (PCE)metabolites

Project Status Project Completed


 

Precursors of Halophenols and Related Substances and Fate in Distribution

Project Status Project Completed


 

The Impact of Exposure and Toxicity Data on Drinking Water Standards for Boron

Project Status Project Completed


 

Treatment Chemicals as Sources of Contamination of Drinking Water

Project Status Project Completed


 

Report A - Literature Review into Deterioration & Failure of Asbestos Cement Water Mains

Project Status Project Completed


 

Report B - Report on Deterioration Models for Asbestos Cement Water Mains

Project Status Project Completed


 

BQ02-A27 A review of the success of previous mains renewal methods and an overview of new techniques

Project Status Project Commenced

The UK water industry is aware that mains replacement programmes are not at the volume needed to create a healthy distribution network for future generations.

In building Mains Rehab business cases the industry must be able to make good decisions as to the engineering techniques employed.



 

BQ02-A30 Optimising the Selection of Pipes for Renewal to Reduce Leakage

Project Status Project Commenced

In the 1990’s and 2000’s, mains renewal programmes were principally driven by the need to improve water quality in pipe networks, under the Section 19 undertakings.  More recently, mains renewals have been targeted more at improving serviceability, specifically burst frequencies and interruptions to supply. The selection of mains for renewal under these programmes was based first on data on water samples and water quality complaints, and later on data on burst frequencies.  As all of these types of data can be allocated to specific pipes, it was relatively simple to target individual pipes for renewal.

Now, with the current focus on reducing leakage levels, leakage has become a major driver for mains renewal, if not the principal driver.  However, leakage is not normally measured at the level of individual pipes, but only at DMA level.  In reality leakage is rarely uniformly distributed across a DMA, but instead some pipes leak more than others within the DMA.  In order to optimise the economics of a mains renewal programme driven by leakage reduction, a method is required to determine which pipes are leaking most in order to target the investment to maximise the benefits.

Currently, as such a method is not generally available, mains are selected on the basis of historical burst numbers, using burst frequency as a surrogate for leakage.  In reality, burst numbers are a poor indicator of leakage levels.



 

BQ02-C33 Use of models to determine the size and most likely location of CSL

Project Status Project Commenced

Leakage on customer supply pipes and communication pipes is estimated to be a significant proportion of the total leakage. At present leakage is only detectable on communication and supply pipes either if the property is metered, or if there is an acoustic device nearby or if it is picked up on an active leakage control sweep of the DMA. Even is a property is metered, unless AMI or frequent AMR is deployed, then the average leak run time on a supply pipe before discovery is likely to be three months (based on six monthly reads). As a result, although the volume of a leak on a supply pipe or communication pipe may be small, they will typically run for a significant length of time.

In recent years, the use of mains models to predict the likely location of a failure have increased. These models typically look at the previous failures within an area, the network model and mains materials and other environmental factors (weather, traffic loading, demand) in order to produce a “most likely” point of failure. This reduces the time spent sweeping the DMA by directing ALC responses to the optimum locations to search for a leak, and additionally can be used to drive mains replacement programmes.

At present, these solutions concentrate on mains failures. However, there would be considerable benefit to these solutions being extended to the prediction of supply and communication pipe failures. Validated models that proved successful at predicting failures would not only reduce location and leak run times but additionally allow more targeted replacement polices.



 

BQ03- C08- Identifying the root causes of failures that lead to interruptions

Project Status Project Completed

In order to effectively prioritise BQ3 Route Map research activities we need a clear understanding of the major root causes of failure leading to interruptions to supply (ITS) across the industry.  There is a need to assess if there are pipeline characteristics, environmental location and conditions, or third-party impacts that are main or high contributors to ITS events across the industry.  There is also currently a lack of consistent methods across the industry regarding root cause failure analysis (RCFA). Lack of awareness of this can trigger premature or incorrect capital investment where very expensive mains replacement may occur prior to all operational or maintenance mitigation being exhausted.

At present, there is no readily available national data on the relative property minutes contributions of ITS events on large diameter mains as opposed to smaller diameter mains or between material types. This relatively basic asset information alone could significantly inform or reaffirm industry and BQ3 route map research priorities moving forwards in terms of relative focus on trunk mains or distribution mains and certain material types etc.

By gathering and interpreting ITS root cause data and information across the industry, the BQ3 research programme can then be further prioritised to focus on those assets that have the greater risk of causing ITS events.  This project will also provide an agreed industry data protocol for future data collection in this area and enhance the effective specification of appropriate datasets for the development of the new National Failures Database (NFD), running as a parallel project. 

By focussing BQ3 research projects on those assets that are more likely to cause ITS events, we will ultimately reduce those events and move towards “Achieving zero interruptions to supply by 2050”.  This will not only provide a better service to our customers but encourage more efficient ways of working within water companies in this area, improve practice and ODI impact and, ultimately, reduce major incident risk. 

 



 

Understanding water infrastructure risks - major bursts, traffic volumes and the condition of road infrastructure.

Project Status Project Commenced

A number of companies experienced a rise in the rate of bursts on larger diameter mains in 2022, a number of these occurred at or close to sizeable road junctions. There is a hypothesis that the

condition of the road and the volume of traffic at these road junctions and has contributed to failure of these mains. When a vehicle hits a pothole, and a shock is felt within the vehicle, however that shock wave will travel down through the road towards the water mains, but does this increase the risk of failure and how can that risk then be monitored to allow risk mitigation measures to be taken.

Over the years we have had a number of major bursts at large road junctions. There are many reasons why we have burst, transients being a common factor, but does significant vibration/shock due to vehicles also result in premature/catastrophic failure or significant risk to major water distribution infrastructure. Should we consider the volume of traffic and the condition of road surfaces as significant risk to major water distribution infrastructure and how would we mange that risk.



 

Evaluation of Long Term Performance the Behaviour of Buried Pipes

Project Status Project Completed


 

Evaluation of the Resistance to Collapse of Thin Walled Liners

Project Status Project Completed


 

Evaluation of Welding & Jointing of Plastic Pressure Pipes

Project Status Project Completed


 

PE Pipes for Contaminated Land

Project Status Project Completed


 

Performance of Access Chambers

Project Status Project Completed


 

Performance of Electrofusion Joints for PE Pipes

Project Status Project Completed


 

Performance of Fast Butt Fusion Jointing

Project Status Project Completed


 

Pipeline Innovation - Final Report - 1995/ 96

Project Status Project Completed


 

Plastics Pipeline Systems - Pipeline Innovation

Project Status Project Completed


 

Plastics Pipeline Systems Evaluation of Long- term Performance – The Behaviour of Buried Pipes

Project Status Project Completed


 

Rehabilitation Strategy

Project Status Project Completed


 

The Residual Structural Properties of Cast Iron Pipes – Structural and Design Criteria for Linings for Water Mains

Project Status Project Completed


 

Understanding Burst Rate Patterns of Water Pipes

Project Status Project Completed


 

Assessing the Structural Condition of PVC Pressure Mains

Project Status Project Completed


 

Blistering of Linings

Project Status Project Completed


 

Code of Practice for Self-laying Water Mains and Services - Final Report

Project Status Project Completed


 

Epoxy Resin - Blistering of Linings

Project Status Project Completed


 

Epoxy Resin - Small diameter distribution mains: Cutting, Drilling and Tapping

Project Status Project Completed


 

Epoxy Resin Linings - Development of a Water Industry Specification for Epoxy Resin LiningMaterials

Project Status Project Completed


 

Epoxy Resin: Cleaning Large Diameter Pipelines for Epoxy Resin Lining

Project Status Project Completed


 

Long-Term Performance Prediction of PE pipes

Project Status Project Completed


 

Mains Location Equipment A State Of The Art Review and Future Research Needs - Final Report

Project Status Project Completed


 

Managing the Risks Presented by Pipeburst, Redundant and Live Asbestos Cement Pipe Water Distribution Mains: Condition Assessment Methodology for Asbestos Cement Pipes

Project Status Project Completed


 

Managing the Risks Presented by Pipeburst, Redundant and Live Asbestos Cement Pipe Water Distribution Mains: Estimation of the Costs Associated with Different Rehabilitation Techniques

Project Status Project Completed


 

Managing the Risks Presented by Pipeburst, Redundant and Live Asbestos Cement Pipe Water Distribution Mains: Project Summary Report

Project Status Project Completed


 

Managing the Risks Presented by Pipeburst, Redundant and Live Asbestos Cement Pipe Water Distribution Mains: Risk Assessment of Asbestos Fibre Release During Rehabilitation of Asbestos Cement Water M

Project Status Project Completed


 

Pipe Isolation Techniques : Cost Benefit Assessment of Available Methods

Project Status Project Completed


 

Pipe Materials Selection and Specification for use in Contaminated Land Final Project Report (Sold as part of a 6 document set for £250)

Project Status Project Completed


 

Risk Assessment for the Replacement of Asbestos Cement Water Distribution Pipes

Project Status Project Completed


 

The Effect of Pressure Reduction on Burst Frequency

Project Status Project Completed


 

Flexible Pipeline Design Manual Report

Project Status Project Completed


 

Pipe Materials Selection and Specification for use in Contaminated Land - Best Practice Manual Booklet 4: Contaminated Land Investigation for Pipe Selection (CLIPS) User Guide

Project Status Project Completed


 

A Comparison of Leakage Practice and Leakage Levels in the UK and Netherlands...

Project Status Project Completed


 

A Manual of DMA Practice

Project Status Project Completed


 

A Review of Leakage - Updating Managing Leakage Methodology and Theory

Project Status Project Completed


 

A Review of Leakage - Updating Managing Leakage Methodology and Theory

Project Status Project Completed


 

Background Leakage

Project Status Project Completed


 

Best Practice for Unmeasured Per Capita Consumption Monitors

Project Status Project Completed


 

Best Practice for the Derivation of Cost Curves in Economic Level of Leakage Analysis

Project Status Project Completed


 

Cost Effective Leakage Survey Practice

Project Status Project Completed


 

Estimating Legitimate Non- Household Night Use Allowances

Project Status Project Completed


 

Factors Affecting the Natural Rate of Rise of Leakage

Project Status Project Completed


 

Household Night Consumption

Project Status Project Completed


 

Improved Household Night Use Allowances

Project Status Project Completed


 

Large Diameter Trunk Main Failures

Project Status Project Completed


 

Leakage Estimation from Night Flow Analysis

Project Status Project Completed


 

Leakage from PE Pipe Systems

Project Status Project Completed


 

Leakage in Trunk Mains and Service Reservoirs

Project Status Project Completed


 

Long Term Leakage Goals

Project Status Project Completed


 

Managing Leakage 2011

Project Status Project Completed


 

Managing Leakage 2011 - References Included

Project Status Project Completed


 

Managing Leakage 2011 - References Included

Project Status Project Completed


 

Managing Seasonal Variations in Leakage

Project Status Project Completed


 

Natural Rate of Rise in Leakage

Project Status Project Completed


 

Reports on Annual Water Balance Calculations

Project Status Project Completed


 

Service Pipe Leakage

Project Status Project Completed


 

The Environmental and Social Value of Leakage Reduction

Project Status Project Completed


 

The Natural Rate of Rise in Leakage

Project Status Project Completed


 

The Natural Rate of Rise in Leakage

Project Status Project Completed


 

Towards Best Practice for the Assessment of Supply Pipe Leakage

Project Status Project Completed


 

Towards Best Practice for the Assessment of Supply Pipe Leakage

Project Status Project Completed


 

A deep dive into leakage using smart meter data

Project Status Project Commenced


 

BQ zero leakage Leakage balance and plumbing losses

Project Status Project Completed


 

BQ0-A06 Assessing the levels of leakage on new polyethylene networks

Project Status Project Commenced

If the UK water industry aspires to achieve zero leakage from its distribution networks, it is clearly essential that all newly laid networks are leak-free when they are laid and remain leak-free throughout their economic lives. However, a major UKWIR study published in 2010 (Report No. 10/WM/08/43 – “Leakage from Polyethylene Pipe Systems”) determined that leakage levels from recently laid PE networks were indeed significant. This report concluded that, although burst rates per unit length for PE pipes were lower than for other pipe materials, there was “no significant reduction in leakage in DMAs with a high proportion of PE pipework”.

If this is still the case today, then clearly the water companies and their contractors need to take urgent action to rectify the situation. However, the data presented in the 2010 UKWIR report is now all at least 15 years old. Some improvements in field procedures, training of operatives, and non-destructive joint testing have been introduced since then. Furthermore, very little of the data collected for the study were from DMAs which comprised 100% PE mains and services, and the report postulated that the persistently high leakage levels may have been due to increased leakage rates on the remaining non-PE parts of the system. In many of the DMAs used which were not within new housing developments, all, or most of the old mains, and in some cases the communication pipes, had been replaced with PE. But generally, the supply pipes had been disturbed but not replaced, probably resulting in increased supply pipe leakage.

Consequently, while much anecdotal evidence remains to suggest that leakage on new networks is still significant, no more recent quantitative evidence has been collected at national level to support this, and even the 2010 report is questionable.



 

Causes of transients in distribution networks

Project Status Project Completed


 

Failure of Large Diameter Trunk Mains Risk Model - Phase II

Project Status Project Completed


 

The Environmental and Social Value of Leakage Reduction

Project Status Project Completed


 

Deterioration Rates of Long-life, Low Probability of Failure Assets: Literature Review

Project Status Project Completed


 

Deterioration Rates of Long-life, Low Probability of Failure Assets: Project Report

Project Status Project Completed


 

Mapping the underworld: Sensor Technologies - Review and Progress

Project Status Project Completed


 

Minimising Street Works Disruption - Knowledge and Data Integration for Utility Assets: Progress from the MTU and VISTA Projects

Project Status Project Completed


 

Minimising Street Works Disruption - VISTA Project: - Assessment of Network Real-Time Kinematic GPS

Project Status Project Completed


 

Minimising Street Works Disruption - VISTA Project: Gathering User Requirements for Visualising Integrated Information on Buried Assets

Project Status Project Completed


 

Minimising Street Works Disruption Stakeholders Forum 21 June 2004

Project Status Project Completed


 

Minimising Street Works Disruption VISTA Project - Full Implementation in Scotland: The Scottish Vault

Project Status Project Completed


 

Minimising Street Works Disruption: An Overview of the VISTA Project

Project Status Project Completed


 

Minimising Street Works Disruption: Buried Asset Data Collection and Exchange Field Trials

Project Status Project Completed


 

Minimising Street Works Disruption: Data Integration and Display - Mapping the Underworld Seminar April 17th 2007

Project Status Project Completed


 

Minimising Street Works Disruption: GPR In Sewers

Project Status Project Completed


 

Minimising Street Works Disruption: Knowledge and Data Integration for Utility Assets - Update on the MTU and VISTA Projects

Project Status Project Completed


 

Minimising Street Works Disruption: Mapping Technologies for Buried Asset Location - Mapping the Underworld Seminar September 14th 2006

Project Status Project Completed


 

Minimising Street Works Disruption: Progress 2002 - 2006

Project Status Project Completed


 

Minimising Street Works Disruption: Progress to December 2009

Project Status Project Completed


 

Minimising Street Works Disruption: Sensors for Buried Asset Location - Mapping the Underworld Seminar, April 26th 2006

Project Status Project Completed


 

Minimising Street Works Disruption: The Real Costs of Street Works to the Utility Industry and Society

Project Status Project Completed


 

Minimising Street Works Disruption: VISTA Project - Extended Implementation Trial in Scotland

Project Status Project Completed


 

Multi-Utility Buried Pipes and Appurtenances Location Workshop, London, 29-31 May 2002

Project Status Project Completed


 

National Underground Assets Group: A National Approach for Capturing, Recording, Storing and Sharing Underground Asset Information

Project Status Project Completed


 

National Underground Assets Group: Capturing, Recording, Storing and Sharing Underground Asset Information - A Review of Current Practice and Future Requirements

Project Status Project Completed


 

National Underground Assets Group: Capturing, Recording, Storing and Sharing Underground Asset Information - A Review of Current Practice and Future Requirements

Project Status Project Completed


 

National Underground Assets Group: Defining the Technological Capability Necessary for Sharing and Displaying Asset Information - User Requirements

Project Status Project Completed


 

Outcomes of the ORFEUS Questionnaire

Project Status Project Completed


 

Report on Asset Location and Condition Assessment

Project Status Project Completed


 

Smart Sensors for Buried Utility Location and Performance Monitoring

Project Status Project Completed


 

The Cost to the UK Water Industry of the Traffic Management Act

Project Status Project Completed


 

The Implications of the Traffic Management Act

Project Status Project Completed


 

The Implications of the Traffic Management Act: Extended Report

Project Status Project Completed


 

Underground Asset Location: Review of Current Technology

Project Status Project Completed


 

A Risk Based Approach to Flooding

Project Status Project Completed


 

UKWIR/FRMRC IUD Demonstration Projects

Project Status Project Completed


 

DOMS - 15 Years on: Industry Workshop 1 Queen Anne's Gate London 8 July 2013

Project Status Project Completed


 

DOMS - What Can We Learn? Research Report

Project Status Project Completed


 

Integrated Network Management Roadmap

Project Status Project Completed


 

Tool for the DOMS Forward-Looking Approach

Project Status Project Completed


 

A Comparison of Leakage Practice and Leakage Levels in the UK and Netherlands...

Project Status Project Completed


 

A Manual of DMA Practice

Project Status Project Completed


 

A Review of Leakage - Updating Managing Leakage Methodology and Theory

Project Status Project Completed


 

A Review of Leakage - Updating Managing Leakage Methodology and Theory

Project Status Project Completed


 

Background Leakage

Project Status Project Completed


 

Best Practice for Unmeasured Per Capita Consumption Monitors

Project Status Project Completed


 

Best Practice for the Derivation of Cost Curves in Economic Level of Leakage Analysis

Project Status Project Completed


 

Cost Effective Leakage Survey Practice

Project Status Project Completed


 

Estimating Legitimate Non- Household Night Use Allowances

Project Status Project Completed


 

Factors Affecting the Natural Rate of Rise of Leakage

Project Status Project Completed


 

Household Night Consumption

Project Status Project Completed


 

Improved Household Night Use Allowances

Project Status Project Completed


 

Large Diameter Trunk Main Failures

Project Status Project Completed


 

Leakage Estimation from Night Flow Analysis

Project Status Project Completed


 

Leakage from PE Pipe Systems

Project Status Project Completed


 

Leakage in Trunk Mains and Service Reservoirs

Project Status Project Completed


 

Long Term Leakage Goals

Project Status Project Completed


 

Managing Leakage 2011

Project Status Project Completed


 

Managing Leakage 2011 - References Included

Project Status Project Completed


 

Managing Leakage 2011 - References Included

Project Status Project Completed


 

Managing Seasonal Variations in Leakage

Project Status Project Completed


 

Natural Rate of Rise in Leakage

Project Status Project Completed


 

Reports on Annual Water Balance Calculations

Project Status Project Completed


 

Service Pipe Leakage

Project Status Project Completed


 

The Environmental and Social Value of Leakage Reduction

Project Status Project Completed


 

The Natural Rate of Rise in Leakage

Project Status Project Completed


 

The Natural Rate of Rise in Leakage

Project Status Project Completed


 

Towards Best Practice for the Assessment of Supply Pipe Leakage

Project Status Project Completed


 

Towards Best Practice for the Assessment of Supply Pipe Leakage

Project Status Project Completed


 

A deep dive into leakage using smart meter data

Project Status Project Commenced


 

BQ zero leakage Leakage balance and plumbing losses

Project Status Project Completed


 

BQ0-A06 Assessing the levels of leakage on new polyethylene networks

Project Status Project Commenced

If the UK water industry aspires to achieve zero leakage from its distribution networks, it is clearly essential that all newly laid networks are leak-free when they are laid and remain leak-free throughout their economic lives. However, a major UKWIR study published in 2010 (Report No. 10/WM/08/43 – “Leakage from Polyethylene Pipe Systems”) determined that leakage levels from recently laid PE networks were indeed significant. This report concluded that, although burst rates per unit length for PE pipes were lower than for other pipe materials, there was “no significant reduction in leakage in DMAs with a high proportion of PE pipework”.

If this is still the case today, then clearly the water companies and their contractors need to take urgent action to rectify the situation. However, the data presented in the 2010 UKWIR report is now all at least 15 years old. Some improvements in field procedures, training of operatives, and non-destructive joint testing have been introduced since then. Furthermore, very little of the data collected for the study were from DMAs which comprised 100% PE mains and services, and the report postulated that the persistently high leakage levels may have been due to increased leakage rates on the remaining non-PE parts of the system. In many of the DMAs used which were not within new housing developments, all, or most of the old mains, and in some cases the communication pipes, had been replaced with PE. But generally, the supply pipes had been disturbed but not replaced, probably resulting in increased supply pipe leakage.

Consequently, while much anecdotal evidence remains to suggest that leakage on new networks is still significant, no more recent quantitative evidence has been collected at national level to support this, and even the 2010 report is questionable.



 

Causes of transients in distribution networks

Project Status Project Completed


 

Failure of Large Diameter Trunk Mains Risk Model - Phase II

Project Status Project Completed


 

The Environmental and Social Value of Leakage Reduction

Project Status Project Completed


 

National Framework for water resources - Environmental Destination investigation framework

Project Status Project Commenced

The National Framework for water resources sets out the principles, expectations and challenges for the five regional water resources groups and individual water company Water Resource Management Plans (WRMP). The National Framework represents one of the most significant drivers for investment in water resources for AMP8 and beyond.

The National Framework presents, for England, potential future abstraction licence reduction scenarios to maintain Water Framework Directive (WFD) status in the future. It also duels with the fundamental issue is about how to plan for adequate environmental flows under WFD (no-deterioration) and should be of interest to other devolved administrations and Ireland.

The scenarios being evaluated in regional plans equate to between 1800 and 3200Ml/d loss of water company abstraction between 2030 – 2050.  The EA scenarios have been generated using their WRGIS tool, a UKCP09 climate change scenario and policy assumptions to provide a top-down initial assessment for WRMP24. 

This is recognised by both regulators and water companies as having significant uncertainty.  Detailed catchment specific evaluations will be required to reduce this uncertainty.

To reduce this uncertainty, there is the opportunity to review/develop the models will enable the industry to:

  • Supplement environmental monitoring data with newly gathered information on abstraction utilisation and use this to forecast future needs.
  • Apply more catchment specific hydro-ecology models, or other frameworks.
  • To refine the data on the flows that are required to support a healthy ecosystem,
  • Predict how and where protection is likely to be needed in a changing climate.


 

A Framework Methodology for Estimating the Impact of Household Metering on Consumption - Further Analysis

Project Status Project Completed


 

A Methodology for Targeting and Delivering Environmental Benefits through Water Demand Management

Project Status Project Completed


 

A Methodology for the Determination of Outputs of Groundwater Sources

Project Status Project Completed


 

An Assessment of the Supply Problems Experienced in 1995

Project Status Project Completed


 

Causes of and Future Trends in Peak Household Water Demands

Project Status Project Completed


 

Intelligent Metering Initiative: Methodology for Cost Benefit Analysis of Intelligent Metering

Project Status Project Completed


 

Outage Allowances For Water Resource Planning

Project Status Project Completed


 

Peak Water Demand Forecasting Methodology

Project Status Project Completed


 

Quantifying Benefits of Peak Demand Management Measures

Project Status Project Completed


 

The Effect of Leakage, Operational Constraints and Restrictions on Peak Household Water Demand

Project Status Project Completed


 

The Effect of Metering on Peak and Average Demand

Project Status Project Completed


 

UKWIR/ NRA Demand Forecasting Methodology Main Report

Project Status Project Completed


 

UKWIR/EA Definition of Key terms for Water Resources Practitioners

Project Status Project Completed


 

UKWIR/EA Forecasting Water Demand Components - Best Practice Manual

Project Status Project Completed


 

The Environmental Effects of Demand Management - Project Record

Project Status Project Completed


 

UKWIR/EA Evaluating the Impact of Demand Restrictions, Main Report

Project Status Project Completed


 

V1 and V2 UKWIR/ Environment Agency - Economics of Demand Management

Project Status Project Completed


 

Drought and Demand: Modelling the Impact of Restrictions on Demand During Drought

Project Status Project Completed


 

Drought and Demand: Potential for Improving the Management of Future Droughts

Project Status Project Completed


 

Drought and Demand: Scoping Study Investigating Drought Effects on Water Quality in Distribution

Project Status Project Completed


 

Strategic Environmental Assessment - Guidance for Water Resources Management Plans and Drought Plans

Project Status Project Completed


 

The Cost of Environmental Sustainability - A Contribution to the CAMS Process - Final Report

Project Status Project Completed


 

The Cost of Environmental Sustainability - A Contribution to the CAMS Process - Technical Report

Project Status Project Completed


 

ASR-UK:Elucidating the Hydrogeological Issues Associated with Aquifer Storage and Recovery in the UK

Project Status Project Completed


 

Critical Period Groundwater Yield

Project Status Project Completed


 

Diffuse Pollutants in Groundwater -- Economic Appraisal

Project Status Project Completed


 

Implications of Changing Groundwater Quality for Water Resources and the UK Water Industry- Phase 3: Best Practice Guidelines for Investigating Processes Controlling Groundwater Quality

Project Status Project Completed


 

Implications of Changing Groundwater Quality for Water Resources and the UK Water Industry- Phase 3: Financial and Water Resources Impact

Project Status Project Completed


 

Implications of Changing Groundwater Quality for Water Resources and the UK Water Industry Phase I Review and Scoping Study

Project Status Project Completed


 

A Framework for Valuing the Options for Managing Water Demand

Project Status Project Completed


 

Sustainability of Water Efficiency

Project Status Project Completed


 

A Review of the UK-ADAPT Project Database

Project Status Project Completed


 

Management of Contamination Risks in Water Supply

Project Status Project Completed


 

The Voluntary Initiative Pilot Catchment Project

Project Status Project Completed


 

UKWIR/EA A Unified Methodology for the Determination of Deployable Output from Water Sources - Volume 2

Project Status Project Completed


 

Water Resources Management in Cooperation with Agriculture: Micro-Macro Economic Analysis

Project Status Project Completed


 

Water Resources Management in Cooperation with Agriculture: Modelling Nitrate Concentrations with Variations in Time

Project Status Project Completed


 

Water Resources Management in Cooperation with Agriculture: Secondary Measures for the Protection of Groundwater - Summary Report

Project Status Project Completed


 

GWRC - Water Footprinting in the Urban Water Sector

Project Status Project Completed


 

UKWIR/EA A Unified Methodology for the Determination of Deployable Output from Water Sources - Volume 1

Project Status Project Completed


 

Water Resources Management in Cooperation with Agriculture- Interim Progress Report

Project Status Project Completed


 

CAMS - Where Next? Report of an Industry Workshop held at UKWIR on Wednesday 16 June 2004

Project Status Project Completed


 

Framework for Developing Water Reuse Criteria with Reference to Drinking Water Supplies

Project Status Project Completed


 

GWRC - Water Reuse 2030: Identifying Future Challenges and Opportunities

Project Status Project Completed


 

Report on Water Reuse Association / IWA Conference - Potable Reuse for Water Supply Sustainability

Project Status Project Completed


 

Status and Role of Water Reuse - An International View

Project Status Project Completed


 

Water Reuse - Report of the GWRC Research Strategy Workshop

Project Status Project Completed


 

Water Reuse: A Review of Current Status in the UK Water Industry

Project Status Project Completed


 

Code of Practice and Guidance on Water Use Restrictions

Project Status Project Completed


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