This annual hydrologic data report of Illinois is one of a series of annual reports that document hydrologic data gathered from the U.S. Geological Survey's data-collection networks in each State, Puerto Rico, and the Trust Territories. These records of surface water, ground water, precipitation and biological data provide the hydrologic information needed by State, local, and Federal agencies, and the private sector for developing and managing our Nation's land and water resources.
This report is the culmination of a concerted effort by dedicated personnel of the U.S. Geological Survey who collected, compiled, analyzed, verified, and organized the data, and who typed, edited, and assembled the report. In addition to the authors, who had primary responsibility for assuring that the information contained herein is accurate, complete, and adheres to Geological Survey policy and established guidelines, the following individuals contributed significantly to the collection, processing, and tabulation of the data:
| De Kalb Office | Mt. Vernon Office | NAWQA | Urbana Office |
|---|---|---|---|
| J.W. Angel | P.J. Draper | D.L. Adolphson | D.M. Ayers |
| L.M. Cann | N.R. Kaufman | T.A. Brown | C.F. Avery |
| S.R. Cutshaw | J.R. Norris | J. Catalano | T.M. Halfar |
| J.S. Luteyn | D.H. Dupre | M.L. Harris | |
| J.C. Prather | D.J. Fazio | G.P. Johnson | |
| D.L. Schrader | D.G. Frothingham | D.P. Morgan | |
| P.C. Taylor | M.A. Harris | M. Murphy | |
| R.B. King | A.D. Robl | ||
| W.S. Morrow | K.A. Shaner | ||
| S. Sahu | S.E. Stammer | ||
| P.J. Terrio | T.D. Straub | ||
| K.L. Warner | A.M. Waite |
Special thanks to Joshua Gioja for writing the software used to compile data for the compact disc. Thanks to Jennifer Sharpe for making the illustrations and Sherry Reeves for assisting in the preparation of the CD.
This report was prepared in cooperation with the State of Illinois and with other agencies under the general supervision of
Robert R. Holmes, Jr., Acting District Chief.