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Watershed > Ohio River Valley
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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 Alexander 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 Flood Discharge Database
- FEMA-published and selected other statistical flood discharge values, searchable by watershed or county.
- 4 Gallatin 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.
- 5 Hardin 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.
- 6 Hydrologic Units of Illinois
- This map provides the USGS level 8 Hydrologic Unit Codes (HUC 8s) for Illinois watersheds.
- 7 Illinois Water Quality
- EPA maintained website with links to all Illinois watershed water quality summary reports dating back to 1996.
- 8 Johnson 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.
- 9 Lower Ohio Watershed Profile
- Environmental Protection Agency website containing numerous links to environmental data about the Lower Ohio watershed.
- 10 Lower Ohio Watershed Resource Links
- USGS maintained site with links to data, projects, and publications on HUC watersheds.
- 11 Lower Ohio 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.
- 12 Lower Ohio-Bay Watershed Profile
- Environmental Protection Agency website containing numerous links to environmental data about the Lower Ohio-Bay watershed.
- 13 Lower Ohio-Bay Watershed Resource Links
- USGS maintained site with links to data, projects, and publications on HUC watersheds.
- 14 Lower Ohio-Bay 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.
- 15 Massac 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.
- 16 Monthly Climate Data- Albion, IL
- Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1901-present.
- 17 Monthly Climate Data- Brookport, IL
- Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1928-present.
- 18 Monthly Climate Data- Cairo, IL
- Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1901-present.
- 19 National Weather Service
- Provides weather, water, and climate data, forecasts and warnings.
- 20 NTN data: Dixon Springs Agricultural Center, Pope County, IL
- This National Trends Network (NTN) monitoring location provides long-term precipitation data for the Dixon Springs Agricultural Center in Pope County, IL.
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