Risk-based prioritisation of point sources through assessment of the impact on a water supply

Niels D. Overheu, Nina Tuxen, Mads Troldborg, Philip John Binning, Poul Løgstrup Bjerg, John Flyvbjerg, Henrik Østergaard, Carsten B. Jensen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A large number of point sources threaten groundwater resources. A tool is presented which enables a uniform and transparent risk assessment and prioritisation of these point sources at the catchment scale with respect to the needs of further investigation or remediation. The tool integrates aquifer vulnerability mapping, site-specific mass flux estimates on a local scale from all the sources, and 3-D catchment-scale fate and transport modelling. It handles sources at various knowledge levels and accounts for uncertainties. The tool estimates the impacts on the water supply in the catchment and provides an overall prioritisation of the sites using a flexible scoring system. The tool is tested on two catchments in Denmark and the results are discussed. Copyright © 2011 IAHS Press.
Original languageEnglish
Title of host publication7th International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World, GQ10
PublisherIAHS Press
Publication date2011
Pages383-386
ISBN (Print)9781907161162
Publication statusPublished - 2011
EventGroundwater Quality Management in a Rapidly Changing World : 7th International Groundwater Quality Conference - Zurich, Switzerland
Duration: 13 Jun 201018 Jun 2010
Conference number: 7
http://www.eawag.ch/medien/veranstaltungen/events/gq2010/index_EN

Conference

ConferenceGroundwater Quality Management in a Rapidly Changing World : 7th International Groundwater Quality Conference
Number7
CountrySwitzerland
CityZurich
Period13/06/201018/06/2010
Internet address
SeriesIAHS Publications Series (Red Books)
Volume342
ISSN0144-7815

Keywords

  • Aquifers
  • Groundwater
  • Groundwater resources
  • Quality management
  • Risk assessment
  • Runoff
  • Water quality
  • Water supply
  • Catchments

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