Feasibility of a systematic approach to water quality management in Illinois : annual report of stream/lake classification project /

Pbk.

Geology, hydrogeology, and water quality of the karst regions of southwestern Illinois and Southeastern Missouri /

"33rd annual meeting, April 1999 North-Central section, Geological Society of America" --cover.

Fox River Watershed investigation : Stratton Dam to the Illinois River, phase II : hydrologic and water quality simulation models, part 1, methodology and procedure for development of HSPF models /

"May 2007"--T.p.

Hydrologic modeling of the Court Creek Watershed /

"IDNR Contract number G99C0230."

Illinois Conference on Soil Conservation and Water Quality : conference proceedings of November 9-10, 1983 at Holiday Inn East, Springfield, Illinois /

Includes bibliographical references.

Illinois Environmental Protection Agency responsiveness summary for : Sugar Creek Impoundment : Section 401 water quality certification for the construction of a water supply reservoir for the city of Marion.

The city of Marion has applied to the Illinois EPA for Section 401 water quality certification to construct a 1,172 surface acre, raw water impoundment reservoir on Sugar Creek, southeast of Creal Springs, Williamson County, Illinois. This proposal and the impacts are described in the Final EIS, DSI, and DSII. The proposed project will involve the construction of a reservoir on Sugar Creek and the mitigation for affected wetlands and jurisdictional waters of the United States.

Illinois integrated water quality report and section 303(d) list ... : water resource assessment information and listing of impaired waters.

Mode of access: Internet.

Illinois' agricultural water quality management programs : a status report : conference proceedings of April 13, 1982 at Department of Agriculture Auditorium, State Fairgrounds, Springfield, Illinois.

"June 1982."

Main report, environmental, economic, and social assessment of the Statewide Water Quality Management Plan : 208 Water Quality Management Planning Program /

"Prepared for the Illinois Institute of Natural Resources and the Illinois Environmental Protection Agency"--Cover

Phosphorus : a summary of information regarding lake water quality /

"August, 1986."

Responsiveness summary : United States Army Corps of Engineers : Waukegan Harbor, Lake County, Illinois : Section 401 water quality certification for dredging of the Waukegan Harbor approach channel and advanced maintenance area.

The approved project allows the Corps to dredge the Waukegan Harbor approach channel and advanced maintenance area. The area to be dredged lies immediately east of the north breakwater. It is approximately a rectangle 650 feet north and south and 1,400 feet east and west. The advanced maintenance area is a band along the north side of the channel. The approved project is for a 10-year certification, under which the Corps may remove 22,000 to 75,000 cubic yards of sediment per dredging event. The dredging depth is 22 feet and the amount to be dredged is about one foot of sediment. As a condition of the certification, disposal of the dredged sediment in Lake Michigan or the waters of the state cannot occur until the conditions of the certification are met. These conditions, which have been placed on the certification by Illinois EPA, ensure that the project meets state water quality standards and is consistent with the determinations of the Illinois Attorney General's Task Force on asbestos contamination at Illinois Beach State Park.

Station locations and periods of record, IEPA ambient water quality monitoring network /

Mode of access: Internet.

The effects of hydrologic modifications on aquatic biota, stream hydrology and water quality : a literature review /

"IEPA/WPC/84-001."-- Cover.

The Economic analysis of proposed site specific changes to water quality regulations affecting Borden Chemical Company /

"ILENR/RE-EA-89/07."

The Influences of land uses and stream modifications on water quality in the streams of the Court Creek Watershed /

"Contract WR 22."