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waterAssessment

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Bill Foreman, research chemist at the National Water Quality Laboratory, prepares a soil sample for the National Water Quality Assessment Program. ...
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USGS Employee At Work
Bill Foreman, research chemist at the National Water Quality Laboratory, prepares a soil sample for the National Water Quality Assessment Program. ...
Location: USA
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Laura Coffey,a chemist at the National Water Quality Laboratory, loads on-line solid-phase extraction cartridges into the high-performance liquid chromatography/mass spectrometer (HPLC/MS) in preparation for testing and calibration...
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USGS Employee At Work
Laura Coffey,a chemist at the National Water Quality Laboratory, loads on-line solid-phase extraction cartridges into the high-performance liquid chromatography/mass spectrometer (HPLC/MS) in preparation for testing and calibration...
Location: USA
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