Implications of Changing Groundwater Quality for Water Resources and the UK Water Industry- Phase 3: Best Practice Guidelines for Investigating Processes Controlling Groundwater Quality
This report sets out best practice guidelines for improved decision-making in investigations of water quality problems. The primary audience is the water industry but it is useful for a wide range of people involved in water supply and water quality assessment. These guidelines define the stages to be followed by investigators to understand the processes controlling groundwater quality. A flow chart links to a series of questions that helps investigators to evaluate the processes and factors related to water quality at an abstraction systematically. References are provided to relevant report sections where further details and information are given to answer these questions and inform investigation development. Key to the whole process is early synthesis of data and understanding of the groundwater system into a conceptual model. This should be formulated to indicate which factors and processes control pollutant migration in the subsurface and are relevant to an investigation. This leads on to the development of a strategy for collection of new data. A series of matrices for selecting appropriate investigation methods for collecting new data to characterize the source, pathway and receptor are presented.
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