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Available Reports: 779

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Published 15/10/2019

Basis for a Programme of Chemical Investigations to be Carried out by the Water Industry During the AMP7 Period (19/EQ/01/19)

The UK Water Industry, under the coordination of UKWIR and in collaboration with UK regulatory agencies, initiated the Chemical Investigations Programme (CIP) in response to emerging legislation on surface water quality. The first phase provided an overview of the occurrence, behaviour and management of trace contaminants in wastewater. The second phase recognised the potential importance of chemicals at a national level as well as the complexity of chemical control and removal. This scoping of the third phase ensures that CIP3 will address the challenges raised in the Water Industry National Environment Programme in terms of its objectives and timescale. The delivery of CIP3 will improve our understanding of works discharging to coastal and transitional water bodies, reduce uncertainties with regards to specific substances and the effectiveness of removal processes as well as recognising the additional complexity of emerging issues such as microplastics and antimicrobial resistance. This report coordinates the respective aims and views of the regulators and water companies into a mutually agreed programme of works.



ISBN: 978-1-84057-879-9

Published 27/09/2019

The impact of reductions in leakage levels on reported and detected leak repair frequencies (19/WM/08/68)

This project investigated the impact of reducing leakage levels on the average frequencies of bursts and other identified leaks, including the proportions which are reported by the public and others, compared with those that are detected by Active Leakage Control.  The project included analysis of data sets supplied by several water companies.  There was no clear evidence in the data reviewed of an offsetting of increased detected leaks by fewer reported leaks as leakage is reduced.  As a result the total number of leak repairs would be expected to increase.  Water companies should factor the costs associated with additional detected leak repairs into the cost of leakage reductions.  Water companies should also monitor the number of leak repairs in parallel to the leakage level to ensure accurate budgeting of the full costs of leakage reduction. Data should be collated centrally with access provided where required for analysis.



ISBN: 978-1-84057-877-5

Published 26/09/2019

Surface Water Assets - A review of the extent of surface water assets in England and Wales (19/RG/05/51)

The natural drainage of the land has developed into a multitude of assets to facilitate drainage, with varying degrees of regulation and ownership. This multi-ownership of surface water assets makes the management of surface water a protracted and difficult process in resolving surface water problems. There is an emergent debate about how surface water drainage, highway drainage and other surface water assets should be managed to allow a holistic view of the system capacity and address the flooding/environmental risks arising from such systems. This report seeks to inform that debate through an initial quantification of the size, scale, condition and current cost of the asset base, as well as the risks, benefits and regulatory implications associated with any potential change to ownership.



ISBN: 978-1-84057-876-8

Published 09/09/2019

Sink to River - River to Tap - A review of potential risks from nano-particles & microplastics (19/EQ/01/18)

This research project found that water treatment works (WTW) and wastewater treatment works (WwTW) remove 99.9% of microplastic particles present in the raw water or sewage prior to treatment.

The study involved repeat sampling over several months at a range of different WTW and WwTW located around the UK to provide evidence from a range of sources and treatment processes.

Although standard methods do not yet exist, the project developed a method that provided repeatable results for microplastic particles of greater than 25 µm and sought to minimise the impact of airborne contamination during sampling and analysis on results.

The most common polymers found were polyethylene and polypropylene.

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ISBN: 978-1-84057-874-4

Published 09/09/2019

Achieving Zero Harm From Plastics Via Water Industry Operations and Activities. Phase 1 (19/EQ/02/2)

The aim of this project was to help identify the key research gaps, challenges and priorities relating to the source, fate and potential impact of microplastic particles in regards to the water industry’s activities and operations.

The project started with a brief, desk-based literature review to provide a baseline to inform future discussions. The findings from the review were then validated and further developed via a series of interviews with a representative sample of stakeholders from the water industry, its regulators and academia.

The outputs of these two activities were then used to inform the structure and content of a route mapping workshop attended by the water industry, its regulators and academia to further define and prioritise the key research challenges. This resulted in the production of a research route map which is included in the report.

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ISBN: 978-1-84057-875-1