An assessment of the water quality of the Rock River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An assessment of the water quality of the Cache River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An application of factor analysis to water quality data /

Cover title.

An intensive water quality survey of the Rock River from Rockford to Byron, Illinois, May-October, 1978 /

Bibliography: p. 35.

An Issues/options paper for comprehensive water quality standards for groundwater /

"December 1988."--Cover.

Analysis of water quality standards, Upper Sangamon Basin, Illinois /

Cover title.

Analysis of water quality : Rock River Basin in Illinois /

Cover title.

Analysis of water quality : upper Kaskaskia River Basin, Illinois /

Bibliography: p. 31-1-31-4.

Assessment of nonpoint source impacts on Illinois water quality.

"IEPA/WPC/88-020."

Economic impact of existing ammonia nitrogen water quality standard, IPCB chapter 3 rule 203(f) /

"July, 1981."

Elements of a water quality information system for the State of Illinois /

Cover title.

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

Pbk.

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 water quality report /

Mode of access: Internet.

Illinois water quality report.

Latest issue consulted: 2002.