An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Google Analytics Dashboard for Water quality and quantity in abandoned underground coal mines of west-central Arkansas and use of surface electrical resistivity in attempting quality determinations
Water quality and quantity in abandoned underground coal mines of west-central Arkansas and use of surface electrical resistivity in attempting quality determinations