EPA has completed its review of Illinois' September 2011 submission of new and revised water quality standards for the CAWS and Lower Des Plaines River. EPA's May 2012 action letter includes the approval of new recreational uses for 8 segments and the disapproval of recreational use downgrades for 4 segments. The May 2012 and November 2011 actions, together, complete EPA's review of Illinois' September 2011 submission.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Summary of EPA's actions on Illinois' new and revised water quality standards for the CAWS and Lower Des Plaines River (PDF)(7 pp, 911 K, September 15, 2015)