Validation of an intrinsic groundwater pollution vulnerability methodology using a national nitrate database.

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dc.contributor.author Holman, Ian P. -
dc.contributor.author Palmer, R. C. -
dc.contributor.author Bellamy, Patricia H. -
dc.contributor.author Hollis, J. M. -
dc.date.accessioned 2012-05-31T23:02:55Z
dc.date.available 2012-05-31T23:02:55Z
dc.date.issued 2005-10-01T00:00:00Z -
dc.identifier.citation I. P. Holman , R. C. Palmer, P. H. Bellamy and J. M. Hollis, Validation of an intrinsic groundwater pollution vulnerability methodology using a national nitrate database, Hydrogeology Journal, October 2005, Vol 13, Nos 5-6, p665-674 -
dc.identifier.issn 1431-2174 -
dc.identifier.uri http://dx.doi.org/10.1007/s10040-005-0439-4 -
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/1939
dc.description.abstract The importance of groundwater for potable supply, and the many sources of anthropogenic contamination, has led to the development of intrinsic groundwater vulnerability mapping. An Analysis of Co-Variance and Analysis of Variance are used to validate the extensively applied UK methodology, based upon nitrate concentrations from 1,108 boreholes throughout England and Wales. These largely confirm the current aquifer and soil leaching potential classifications and demonstrate the benefits of combining soil and low permeability drift information. European legislation such as the Water Framework Directive will require more dynamic assessments of pollutant risk to groundwater. These results demonstrate that a number of improvements are required to future intrinsic groundwater vulnerability methodologies. The vertical succession of geological units must be included, so that non-aquifers can be zoned in the same way as aquifers for water supply purposes, while at the same time recognising their role in influencing the quality of groundwater in deeper aquifers. Classifications within intrinsic vulnerability methodologies should be based upon defined diagnostic properties rather than expert judgement. Finally the incorporation into groundwater vulnerability methodologies of preferential flow in relation to geological deposits, soil type and land management practices represents a significant, but important, future challenge. en_UK
dc.language.iso en_UK -
dc.publisher Springer Science Business Media en_UK
dc.subject Groundwater protection en_UK
dc.subject Groundwater pollution vulnerability en_UK
dc.subject Preferential flow en_UK
dc.subject Nitrate en_UK
dc.subject Soil leaching potential en_UK
dc.title Validation of an intrinsic groundwater pollution vulnerability methodology using a national nitrate database. en_UK
dc.type Article -


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