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.
Search Data.gov
Found 1 dataset(s) matching "USGS:603cfea2d34eb1203117e466".
Updated: 20210503
|Harvested: July 16, 2025 at 01:51 PM
During water years 2016–2020, the U.S. Geological Survey, in cooperation with the Illinois Environmental Protection Agency, operated continuous monitoring stations on eight of the major rivers in...