Description: Illinois State Water Survey (ISWS) Tornado Research files contain newspaper clippings, annual profile summaries, research data, administrative operational manuals, VHS tapes, slides, magnetic recording tapes, cassette tapes, and a CD concerning ISWS's partnership with the University of Illinois, the Lincoln Trail Libraries System, staff, the tornado of April 9th, 1953, weather preparedness, chemical hygiene, safety, the Water Survey centennial, and dedications and groundbreaking for the Water Resources Building and the Institute for Environmental Studies and Illinois Hazardous Waste Research and Information Center's Hazardous Materials Laboratory.