Welcome! If you are here to accept the Data Use and Licensing Agreement to get data from the Illinois State Water Survey, you’re in the right place. If this is your first visit to this site, please register using one of the links above— you may choose to use a password or login with your email address and a confirmation code (choose “Passwordless Login” for this option).
If you haven’t yet made a data request, but would like to, please email the Illinois State Water Survey and let them know which data you are interested in.
If you reached this site by mistake, visit the Illinois State Water Survey.