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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  Flood Discharge Database

FEMA-published and selected other statistical flood discharge values, searchable by watershed or county.

3  Ford 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.

4  Hydrologic Units of Illinois

This map provides the USGS level 8 Hydrologic Unit Codes (HUC 8s) for Illinois watersheds.

5  Illinois Water Quality

EPA maintained website with links to all Illinois watershed water quality summary reports dating back to 1996.

6  Iroquois 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.

7  IROQUOIS RIVER ABOVE WATSEKA, IL - 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.

8  IROQUOIS RIVER AT IROQUOIS, IL - 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  IROQUOIS RIVER AT WATSEKA, IL - 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.

10  IROQUOIS RIVER NEAR CHEBANSE, IL - 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  IROQUOIS RIVER NEAR WATSEKA, IL - 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  Iroquois River Stage Data and Forecasts

Data provided by the National Weather Service’s Advanced Hydrologic Prediction Service

13  Iroquois Watershed Profile

Environmental Protection Agency website containing numerous links to environmental data about the Iroquois watershed.

14  Iroquois Watershed Resource Links

USGS maintained site with links to data, projects, and publications on HUC watersheds

15  Iroquois 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.

16  Kankakee 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.

17  Monthly Climate Data- Watseka, IL

Monthly precipitation and temperature data provided by the State Climatologist. Data available from 1901-present.

18  National Weather Service

Provides weather, water, and climate data, forecasts and warnings.

19  National Weather Service: River Watch, Mississippi River Basin

Illinois River 5-day stage forecasts for three main river segments: Morris to LaSalle, Henry to Beardstown, and New LaGrange to Hardin. Includes links to Upper Mississippi Basin stage forecasts.

20  NAWQA Data Warehouse

Searchable database of National Water Quality Assessment data.

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