Long Term Resource Monitoring Program water quality site: M196.9Q Site description: Mississippi River downstream of Lock and Dam #26 Hydrologic Unit Code (HUC): 07110009 Site UTM N: 4302053 Site UTM E: 750631 UTM zone: 15 Drainage area at water quality site: 171,300 mi2 Sampling frequency: biweekly 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 1.101