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Detailed Subsurface Characterization Using The Waterloo ProfilerNormal access

Author: Seth E. Pitkin
Event name: 11th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems
Session: Methods Emphasis: Developments In Direct Push Technologies
Publication date: 22 March 1998
Organisations: EEGS
Language: English
Info: Extended abstract, PDF ( 1.11Mb )

Groundwater contaminant plumes are often very complex, exhibiting sharp concentration gradients, complex source
geometries and transport pathways and variability in the conditions affecting the fate of the contaminants. Failure to
understand these complexities can lead to the failure of the chosen remedy. Rapid adaptive site characterization
(RASC) is a new approach to site investigation in which a conceptual model is developed, resources are mobilized to
the site and data are produced and interpreted on site in near real time. The data interpretations are used to revise the
conceptual model and revise the site investigation in response to site conditions. The Waterloo Profiler is a new tool
which is an integral part of RASC on suitable porous media sites. The Waterloo Profiler was developed at the
University of Waterloo in 1992 and has undergone extensive testing and development since then. This tool is
uniquely suited to resolving the spatial structure of contaminant distributions, hydraulic head and hydraulic
conductivity as well as physico-chemical properties such as pH, dissolved oxygen, oxidation/reduction potential,
specific conductance and turbidity. This ability leads to enhanced understandings of source geometries, travel
pathways and contaminant fate which are essential to making sound decisions about plume management.

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