Critical trends assessment Program 2002 report

"July 2003"

Critical Trends Assessment Program : 2001 report.

Introduction: The Critical Trends Assessment Program was established in 1992 to inform state policy makers about the state of Illinois' ecosystems. During the decade since then, CTAP has developed tools and programs to systematically monitor changes in ecological conditions in Illinois. These programs not only support policymakers to help them make wise decisions about protecting our natural resources, but provide information to state and local land managers and the public as stewards of Illinois lands and waterways.

Determining resource quality and potential reasons for impairment of Illinois streams, inland lakes, and Lake Michigan : (Methods used for 2002 305(b) reporting).

According to Section 305(b) of the Clean Water Act (i.e. a generic name that refers to the Federal Water Pollution Control Act of 1972, the Clean Water Act of 1977, and subsequent amendments) and guidance provided by the United States Environmental Protection Agency (USEPA), each state must prepare and submit annually to the U.S. Congress and the USEPA report that describes the resource quality of the surface waters of the state. Every other year, this report, commonly referred to as the "305(b) report," must be provided in written form, whereas in alternate years each state may submit an electronic database to meet the reporting requirement. In the 305(b) report, states must also explain how they determined the resource quality of the waters of the state in terms of the degree to which predefined beneficial uses of those waters are supported. Also, in the 305(b) report when any designated use for any water body is not fully supported, the state must report potential reasons for the impairment. Herein, is explained how the Illinois Environmental Protection Agency determines the resource quality of Illinois streams, inland lakes, and Lake Michigan.

Identification of sources causing TSP non-attainment in the Peoria area : analysis of historical high-volume filters /

"Project no. 10.064."

Sample collector's handbook.

"The Handbook is presented in modular format. Modules will be punched for a standard 3-ring notebook. Modules will be sent as developed or updated."--P. 3.

Research Reports

Mode of access: Internet.

Distribution of phytoplankton in Illinois lakes /

Bibliography: p. 10.

Summary report, weather modification

Mode of access: Internet.

Proceedings of the 1986 EPA/APCA Symposium on Measurement of Toxic Air Pollutants /

"EPA Report No. 600/9-86-013"--P. ii.

Summary report;

Report year ends June 30.

Plutonium uptake by plants grown in solution culture /

Prepared for the U. S. Environmental Protection Agency, Office of Research and Development, Monitoring Systems Research and Development Division, Environmental Monitoring and Support Laboratory, Las Vegas, Nev.