Lake water quality assessment program : northeastern Illinois lakes /

"The Northeastern Illinois Planning Commission's Natural Resources Dept. conducted the lake assessment data collection effort for the six county northeastern Illinois region." -- P. iii.

Lake water quality assessment program, 1993 : northeastern Illinois lakes /

"January 1995."

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."

Report on long-term financial support of water quality testing /

"November 02, 1992."--Cover.

Restoring Illinois water quality with TMDLs.

The establishment of a Total Maximum Daily Load sets the pollutant reduction goal necessary to improve impaired waters. It determines the load, or quantity of any given pollutant that can be allowed in a particular water body. A TDML must consider all potential sources of pollutants whether point or nonpoint. It also takes into account a margin of safety, which reflects scientific uncertainty, as well as the effects of seasonal variation.

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.

Section 208 water quality management planning work plan and budget : summary.

Cover title: Water quality management planning.

State of Illinois Environmental Protection Agency 208 water quality management planning program.

Cover and spine title: Water quality management plan.

Strategy for water quality standards review /

Mode of access: Internet.

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."

The Illinois water quality management plan /

"IPEA/WPC/92-220"--Cover.