100 W. Randolph, Suite 11-500Chicago, Illinois 60601(312) 814-3620(312) 814-6032 TDD Illinois Pollution Control Board1021 North Grand Avenue EastP.O. Box 19274Springfield, Illinois 62794-9274(217) 524-8500Web Site: http://www.ipcb.state.il.us Letter from the ChairmanIn July, the Board continued to move forward with three significant rulemakingdockets. In R04-25, the Board proposed amendments to Illinois’ general use water qualitystandards for dissolved oxygen (DO). The amendments are bas...
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