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

Illinois Drought


System Information

System Description

Ashland obtains its water supply from Little Indian Creek and uses two off-channel reservoirs, Old Lake and New Lake, for storage. Water is pumped into Old Lake at 150 gpm while New Lake can pump it at up to 400 gpm from Little Indian Creek and also receives runoff from its 0.31 sq mi watershed during storms. Wells are also available as an emergency source.

Satellite Communities and Water Districts

Locator map for Ashland

Population Served:





Water Source
Name Type Stream DA (sq mi) SA (ac) Capacity Year Est. Est. 2010 Cap. (ac-ft)
L Indian Cr (Old Lk) RW Little Indian Cr 9.87
Ashland Old Lake OCR Little Indian Cr 0 5.9 80 80
L Indian Cr (New Lk) RW Little Indian Cr 14.68
Ashland New Lake** OCR Little Indian Cr Trib 0.31 13.5 159 159
Groundwater GW

1989 Study:

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

USGS Gages:

No data available

Developments since 1989:

Voluntary restrictions were implemented during the 2005 drought, during which emergency wells were used at least twice.
Chart of Annual Raw Water Production (mgd)
Note: *A sedimentation basin minimizes capacity loss in New Lake. **Emergency well use is not shown.

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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