This page contains the following sub-pages:
- Survey of the Waters of Illinois (Illinois State Water Survey, 1895-1919)
- Illinois Rivers and Lakes Commission (1910-1919)
- Public Ground-Water Supplies of Illinois (Illinois State Water Survey, 1925-1961)
- National Water Resources Survey (1938-1939)
- Regional Groundwater Geology Reports (Illinois State Geological Survey, 1954-1958)
- Surface Waters of Illinois Counties ( Illinois Department of Conservation, Division of Fisheries, 1968-1975)
- Water Quality Management Basin Plans, Phase I (Illinois Environmental Protection Agency, 1976)
- River Basin Water Quality Assessments (INHS, 1977-1979)
- Rivers of Illinois Flyover Videos (National Park Service, 1977-1979)
- Intensive Surveys (Illinois Environmental Protection Agency, 1978-2000)
- Illinois Water Inventory Program (IWIP), ISWS 1978 - date
- Volunteer Lake Monitoring Program (Illinois Environmental Protection Agency) 1981-2019
- Biological Stream Characterization (1984 - 2007)
- Critical Trends Assessment Program (CTAP) Area Assessments (1996-2002)
