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Data Online- 1 7-Day 10-Year Low Flow Maps
- These maps provide information on low flow conditions that might be expected to occur only during droughts (once in 10 years), and associated effluent discharges, water withdrawals, and flow regulations for most Illinois rivers and streams.
- 2 Clark County Water Data
- The USGS National Water Information System provides real-time and historical data on surface water flow, ground water levels, and water quality of streams in the US.
- 3 Embarras Watershed Profile
- Environmental Protection Agency website containing numerous links to environmental data about the Embarras watershed.
- 4 Embarras Watershed Resource Links
- USGS maintained site with links to data, projects, and publications on HUC watersheds.
- 5 Embarras Watershed Water Data
- The USGS National Water Information System provides real-time and historical data on surface water flow, ground water levels, and water quality of streams in the US.
- 6 Flood Discharge Database
- FEMA-published and selected other statistical flood discharge values, searchable by watershed or county.
- 7 Illinois Water Quality
- EPA maintained website with links to all Illinois watershed water quality summary reports dating back to 1996.
- 8 Middle Wabash-Busseron Watershed Profile
- Environmental Protection Agency website containing numerous links to environmental data about the Middle Wabash-Busseron watershed.
- 9 Middle Wabash-Busseron Watershed Resource Links
- USGS maintained site with links to data, projects, and publications on HUC watersheds.
- 10 Middle Wabash-Busseron Watershed Water Data
- The USGS National Water Information System provides real-time and historical data on surface water flow, ground water levels, and water quality of streams in the US.
- 11 Clark County Coal Maps
- ISGS Coal Map Series. Includes mines, resources, and logs.
- 12 Clark County Orthophotography Data 1998-1999
- Illinois National Aerial Photography Program Digital Orthophotography quarter Quadrangle data for Clark County in the Universal Transverse Mercator (UTM) coordinate system with a NAD83 datum.
- 13 Illinois County Boundaries, Polygons and Lines
- GIS data - zipped shapefile
- 14 Illinois Floodplain Maps
- ISWS resource providing preliminary and final maps of Illinois floodplains.
- 15 Illinois River Watershed - Poster
- Poster-sized (26x38) map of the entire Illinois River Watershed. Part of the Illinois State Water Survey published Map Series (2003-1)
- Download Options: LoRes preview | HiRes (3.5 MB) | Metadata
- 16 Major Watersheds of Illinois
- Poster-sized (26x38) map of the major watersheds in Illinois. Part of the Illinois State Water Survey published Map Series (2000-01)
- Download Options: LoRes preview | HiRes (730 K) | Metadata
- 17 Resource Management Mapping Service
- Interactive map that allows users to locate, create, and print maps of large and small areas within Illinois. Natural resource, administrative, and economic layers available.
= Abstract available = Full Text available = Fact Sheet available
= PDF format = HTML format = PowerPoint format
= PDF format = HTML format = PowerPoint format
- 18 100 - year rainstorms in the Midwest: design characteristics
- Huff, Floyd A., 1993 ISWS C-176
- 19 7-day 10-year low flows of streams in the Kankakee, Sangamon, Embarras, Little Wabash, and southern regions
- Singh, Krishan P., Ganapathi S. Ramamurthy, and Il Won Seo, 1988 ISWS CR-441
- 20 Adequacy of Illinois surface water supply systems to meet future demands
- McConkey Broeren, Sally, and Krishan P. Singh, 1989 ISWS CR-477
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