Metropolitan Council Environmental Services water quality site: VR 20.6 Site description: Vermillion River at Farmington, MN (Biscayne Ave. bridge) Hydrologic Unit Code (HUC): 07040001 Site UTM N: 4944848 Site UTM E: 490772 UTM zone: 15 Drainage area at water quality site: 100 mi2 Sampling frequency: weekly (NH3_N); biweekly (NO2_N, NO3_N, TP_P); monthly (SRP_P, TKN); quarterly (Cl) Flow station: 05345000 (USGS daily flows) Station description: Vermillion River near Empire, MN Hydrologic Unit Code (HUC): 07040001 Station UTM N: 4945707 Station UTM E: 495662 UTM zone: 15 Drainage area at flow station: 110 mi2 Period of record: 10/01/1973-09/30/1997 Flow conversion: 0.9091 x (flow at 05345000) = estimated flow at VR 20.6 The following constituent values were removed from analysis as possible outliers, or are below detection limits: Date Constituent Concentration 04/07/1993 Total Nitrogen 16.72 04/07/1993 Total Nitrate + Nitrite 16.12 Additional comments: none Loads for this site were estimated with LOADEST2 version 1.101