Chicago, 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 ChairmanDuring March, the Board moved forward in a number of its open rulemakingdockets. On March 18, 2010, the Board accepted the IEPA’s proposal for hearing in R10-20 without commenting on itssubstantive merits ...
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