Salinity Sampling in the Colorado River

Detailed Description
A U.S. Geological Survey scientist collects a sample from the Colorado River for analysis of dissolved solids and other water-quality constituents. Credit: Nancy Bauch, USGS.
A U.S. Geological Survey scientist collects a sample from the Colorado River for analysis of dissolved solids and other water-quality constituents. Credit: Nancy Bauch, USGS.