The USGS and agencies of the State of Illinois have had cooperative agreements for the collection of water-resources records since 1930. Organizations that assisted in collecting the data included in this report through cooperative agreement with the USGS are:
Illinois Department of Natural Resources, Brent Manning, Director.
Office of Water Resources, D.R. Vonnahme, Director.
Illinois State Water Survey, Dr. Derek Winstanley, Chief.
Bloomington and Normal Water Reclamation District, J.M. Callahan, Executive Director.
Danville Sanitary District, P.C. Morgan, Director.
Forest Preserve District of Cook County, Allan Mellis, Director of Planning and Development.
Forest Preserve District of Du Page County, R.A. Hill, Project Engineer.
Du Page County Department of Environmental Concerns, Anthony J. Charlton, Chief, Stormwater Management Division.
Kane County Development Department, P.M. Schuch, Director of Platting and Water Resources.
Lake County Stormwater Management Commission, W.S. Miller, Executive Director.
McHenry County Conservation District, Craig D. Hubert, Executive Director.
Vermilion County Conservation District, K.F. Konsis, Executive Director.
Winnebago County, Ron Heinen, County Engineer, Department of Public Works.
City of Champaign, Jeffrey M. Smith, City Engineer.
City of De Kalb, J.C. Maurer, Civil Engineer.
City of Decatur, B.A. McNabb, Director of Public Works.
City of Joliet, Chuck Parini, Emergency Management Agency Coordinator
City of Monticello, Floyd Allsop, Superintendent of City Services.
City of Peru, J.E. Prazen, Superintendent
City of Springfield, William Brown, Water Plant Superintendent.
City of Urbana, W.R. Gray, Public Works Director.
Village of Oak Brook, D.L. Durfey, Jr., Village Engineer.
University of Illinois, Charles C. Colbert, Vice Chancellor for Administrative Affairs and Human Resources.
Assistance, by providing funds or services, was given by the U.S. Army Corps of Engineers in collecting records for 64 surface-water
gaging stations and 2 crest-stage gage sites.