NAWQA groundwater slides
![NAWQA groundwater slides](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/NAWQA_gw_slides.jpg?itok=lH1w4zZg)
Detailed Description
From left: measuring groundwater salinity in Georgia, collecting groundwater samples for laboratory analysis in Florida, sampling shallow groundwater wells during agricultural land use study in Georgia; collecting groundwater samples in Nevada.
Sources/Usage
Public Domain.