Phase III: Post-restoration monitoring of Lake Le-Aqua-Na

Includes bibliographical references (p. 134-136)."March 1997.""Contract Report 610.""Chemistry Division.

Illinois lake quality assessment program: 1993

"September 1994.""Prepared for the Lake and Watershed Unit, Illinois Environmental Protection Agency.

Two-year study of alum sludge application to corn and soybean farmland

"ISWS/RI-113/90"--Cover.Includes bibliographical references (p. 37).Enumeration continues through succeeding title

Diagnostic-feasibility study of Wolf Lake, Cook County, Illinois, and Lake County, Indiana

"October 1996."Addenda ([3] p.) inserted."Funded under USEPA Grant #S995201-01-0, S995202, IDEM contract #ARN92-5A, ARN92-4, IEPA Contract #SWC-2024."Includes bibliographical references (p. 262-267)

Effects of Wastewater Effluent Chlorination on Bacterial Densities in Receiving Water

published or submitted for publicationis peer reviewedOpe

Diagnostic-feasibility study of Otter Lake, Macoupin County, Illinois: phase I

"Prepared for the ADGPTV Water Commission and the Illinois Environmental Protection Agency.

Aeration/destratification in Lake Evergreen, McLean County, Illinois

"Prepared for the City of Bloomington.

Phase I: Diagnostic study of Lake Vermilion, Vermilion County, Illinois

"Prepared for The Consumers Illinois Water Company and Illinois Environmental Protection Agency."Includes bibliographical references (p. 115-119)

Relationships between Odor and Commonly Measured Water Quality Characteristics in Surface Water Supplies

Weekly threshold odor numbers (TONs) were determined for the waters of three impoundments and the finished water produced by treatment at each impoundment site during a 2-year period. The correlation between the TONs and each of 20 commonly measured biological, chemical, and physical parameters was examined. The correlation coefficients were generally low, except those for nitrate-nitrogen, sulfate, manganese, and chlorine demand. The magnitude of taste and odor in the three impoundments was found to be a seasonal function. High TONs generally occurred during the period from May through October, the period of anoxic conditions in bottom waters of impoundments. Regardless of the magnitude of TONs for the raw waters, the TONs for the three finished waters ranged from 3 to 10 about 95 percent of the time. The probable causes of the excessive TONs are discussed, and predictions of the occurrences and magnitude of odor are presented, based on stepwise multiple regression analyses.publishedpeer reviewedOpe