Perry County surface water resources /

"March, 1969."

Pond water treatment.

Reissue of 1954 ed. published by the Dept's Division of Sanitary Engineering, which was issued as the Dept.'s Circular N820.

Potential water resources of southern Illinois /

Bibliography: p. 96-97.

Public Water Supplies program plan /

Title from cover.

Randolph County surface water resources / by Donald M. Garver.

Mode of access: Internet.

Public water supplies data book.

"Statistical summary of Illinois public water supplies (State operated facilities excluded)."

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

"November 02, 1992."--Cover.

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.

Risk assessment of exposure to radium and fluoride in Illinois public water supplies /

Prepared for Illinois Dept. of Energy and Natural Resources, Energy and Environmental Affairs Division.

Saline County surface water resources /

Includes bibliographical references (p. 48-49).

Schuyler County surface water resources /

"May, 1969."

Scott County surface water resources /

"January, 1970."

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

Mode of access: Internet.

Washington County surface water resources /

"February, 1970."

Water resources [of] southern Illinois.

Mode of access: Internet.