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Title: The development and verification of methodologies for defining groundwater nitrate vulnerable zones
Author: Environment Agency
Document Type: Monograph
This report summarises research undertaken in a series of stages over a period of nearly two years. For convenience the report is divided into four main parts. The first part introduces the research context and describes several of the main data sources used.' Part II describes-the initial generation of groundwater vulnerability classifications and the work undertaken to evaluate the different approaches using data on nitrate concentrations in boreholes. In Part III some refinements to the initial vulnerability classification methods are presented, followed again by verification analyses using details of nitrate concentrations in boreholes. This section also includes a consideration of the extent to which groundwater nitrate levels vary by borehole depth as well as the vulnerability of the site. The final part of the report presents a methodology for the preliminary definition of groundwater nitrate vulnerability zones using details from the best of the vulnerability classifications and interpolated nitrate levels.
Publisher: Environment Agency
Publication Date: 2001
Publication Place: Bristol
Subject Keywords: Groundwater pollutionNitratesSite surveysMethodology
Extent: 89
Total file downloads: 252

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