USGS Water Resources Division water quality site: 05587455
Site description: Mississippi River below Grafton, IL
Hydrologic Unit Code (HUC): 07110009
Site UTM N: 4314430
Site UTM E: 727819
UTM zone: 15
Drainage area at water quality site: 171,300 mi2
Sampling frequency: monthly
   
Flow station: 05587450 (USGS daily flows)
Station description: Mississippi River at Grafton, IL 
Hydrologic Unit Code (HUC): 07110009
Station UTM N: 4316170
Station UTM E: 722807
UTM zone: 15
Drainage area at flow station: 171,300 mi2
Period of record: 04/01/1933-09/30/1997
Flow conversion: none

The following constituent values were removed from analysis as
possible outliers, or are below detection limits: none

Additional comments: none

Loads for this site were estimated with LOADEST2 version 1.10