Delineation of Source Protection Zones Using Statistical Methods

Fritz Stauffer (), Alberto Guadagnini, Adrian Butler, Harrie-Jan Franssen, Neeltje Wiel, Mahmoud Bakr, Monica Riva and Laura Guadagnini

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2005, vol. 19, issue 2, 163-185

Abstract: Source protection zones are increasingly important for securing the long-term viability of drinking water derived from groundwater resources. These may be either time-related capture zones or catchments related to the activity of a pumping well or spring. The establishment of such zones is an indispensable measure for the proper assessment of groundwater resource vulnerability and reduction of risk, which may be induced by human activities. The delineation of these protection zones is usually performed with the aid of models, which are in turn based on site-specific information of the aquifer’s geometry, hydraulic parameters and boundary conditions. Owing to the imperfect knowledge of such information, predicting the location of these zones is inherently uncertain. It is possible to quantify this uncertainty in a statistical manner through the development of probability maps, which shows the probability that a particular surface location belongs to the aquifer’s capture zone (or catchment area). This publication aims at the investigation of the requirements for the establishment of probabilistic source protection zones, the practical use of stochastic methods in their delineation, and the use of data-assimilation for uncertainty reduction. It also provides a methodology for the implementation of these methods by modelling practitioners. Copyright Springer Science + Business Media, Inc. 2005

Keywords: groundwater; modelling; protection zones; statistical methods; stochastic methods; uncertainty estimation (search for similar items in EconPapers)
Date: 2005
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DOI: 10.1007/s11269-005-3182-7

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