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Field equipment set up for a 2D electrical resistivity survey. http://water.usgs.gov/ogw/bgas/toxics/NAWC-surface.html
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|current||17:48, 22 November 2013||250 × 333 (56 KB)||Darren.atkins||Field equipment set up for a 2D electrical resistivity survey. http://water.usgs.gov/ogw/bgas/toxics/NAWC-surface.html|
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