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.
Data from 44 aquifer tests conducted on wells completed in the Silurian-Devonian aquifers within and around Johnson County, Iowa, have been gathered and reformatted to enable easier data analysis...
data.gov
An official website of the GSA's Technology Transformation Services