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 ChairmanDuring April, the Board progressed in several rulemaking dockets. Adm. Code 620. IEPA proposes toamend the Groundwater Quality Standards to reflect new scientific data, standards that have been amended at thefederal level, te...
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