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

Illinois Drought


System Information

System Description

Elgin pumps approximately 96% of its water from the Fox River and can treat up to 32 mgd. Withdrawals from eight wells are occasionally used for blending, ice control during the winter and infrequent taste and odor problems.

Satellite Communities and Water Districts

Bartlett and Sleepy Hollow
Locator map for Elgin

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 1550
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:

Elgin did not need to institute any use restrictions during the 2005 drought. The system is in the design phase of expanding their treatment plant's capacity to 42 mgd. This expansion should allow the Fox River to adequately supply the system's projected 2035 population of 190,000.
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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