USGS Water Resources Division water quality site: 05570000 Site description: Spoon River at Seville, IL Hydrologic Unit Code (HUC): 07130005 Site UTM N: 4484833 Site UTM E: 725224 UTM zone: 15 Drainage area at water quality site: 1,636 mi2 Sampling frequency: monthly Flow station: 05570000 (USGS daily flows) Station description: Spoon River at Seville, IL Hydrologic Unit Code (HUC): 07130005 Station UTM N: 4484833 Station UTM E: 725224 UTM zone: 15 Drainage area at flow station: 1,636 mi2 Period of record: 10/01/1914-09/30/1997 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