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USGS 04087440 LAKE MICHIGAN AT CHICAGO LOCK AT CHICAGO, IL

  Lake Site

DESCRIPTION:
Latitude 41°53'18",   Longitude 87°36'27"   NAD27
Cook County, Illinois, Hydrologic Unit 04060200
Datum of gage: 579.48 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2016-09-30  
 Daily Data
    Gage height, feet  1997-08-15  2016-09-29  5449 
    Gage height, feet  2015-03-24  2015-12-06  238 
 Daily Statistics 
    Gage height, feet  1997-08-15  2016-02-08 5215 
 Monthly Statistics 
    Gage height, feet  1997-08  2016-02  
 Annual Statistics 
    Gage height, feet  1997  2016  
 Field/Lab water-quality samples 2005-12-19  2005-12-19  1 
 Water-Year Summary 2008  2015  8 
OPERATION:
Record for this site is maintained by the USGS Illinois Water Science Center
Email questions about this site to Illinois Water Science Center Water-Data Inquiries