Drought Vulnerability of Illinois' Community Surface Water Systems, Illinois State Water Survey

Illinois Drought


System Information

System Description

Aurora receives water from an intake on the Fox River and 17 wells. The Fox River supplies 40-60% of the system's water depending on water quality conditions. The amount of groundwater used increases during occasional periods when algae in the river water causes taste and odor problems.

Satellite Communities and Water Districts

Locator map for Aurora

Population Served:





Water Source
Name Type Stream DA (sq mi) SA (ac) Capacity Year Est. Est. 2010 Cap. (ac-ft)
Fox River RW Fox R 1706
Groundwater GW

1989 Study:

50-year drought yield sufficient at present level of water use.

USGS Gages:

Fox River at Algonquin (05550000)

Developments since 1989:

A permanent ordinance for outdoor watering (odd- and even-day restrictions) was passed in 2006 to reduce summer demand. Continued population growth could raise average daily demand to 24.1 mgd and peak demand to 39.3 mgd in 2030. The system plans to add more wells to augment its supply.
Chart of Annual Raw Water Production (mgd)

Notes and Terminology

Vulnerability Report

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Illinois State Water Survey

2204 Griffith Dr., MC-674
Champaign, IL 61820-7463
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