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Assessment of the relative vulnerability of groundwater to pollution: a review and background paper for the conference workshop on vulnerability assessment

Created 17/10/2025

Updated 17/10/2025

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The need for assessment of regional vulnerability of groundwater to pollution from surface activities is highlighted. It is generally considered that efficient broad-scale assessments should be based on a small number of readily available spatial coverages which delineate hydrogeological settings. A variety of approaches reported in the literature is reviewed. These include empirical (e.g. the DRASTIC system), deterministic, probabilistic, and stochastic techniques. Empirical approaches have been criticised for being subjective, whilst physically based deterministic techniques are more appropriate for sub-regional predictive (quantitative) assessment and are tied to specific perceived processes. Probabilistic techniques are data intensive and involve groundwater numerical modelling as they are thus inappropriate for broad, regional vulnerability assessments based on readily available spatial variables. It is concluded that stochastic techniques offer more promise than other techniques involving weights-of-evidence modelling; new work in this area is described.

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Field Value
Title Assessment of the relative vulnerability of groundwater to pollution: a review and background paper for the conference workshop on vulnerability assessment
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/2be005ef-8b72-4b8a-b124-b4ba071712f3
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Assessment of the relative vulnerability of groundwater to pollution: a review and background paper for the conference workshop on vulnerability assessment". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/assessment-of-the-relative-vulnerability-of-groundwater-to-pollution-a-review-and-background-pa