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BIOSCREEN Natural Attenuation Decision Support System Joe's Truck Plaza Data Input Instructions: <br /> Air Force Center for Environmental Excellence Version 1.4 A-zone future extent 115 1 1. Enter value directly...or <br /> Run Name or 2 Calculate by filling in grey <br /> 1. HYDROGEOLOGY 5. GENERAL L 0.02 cells below. (To restore <br /> Seepage Velocity* Vs 50 0 (ft/yr) Modeled Area Length* 800 (ft) t formulas, hit button below, <br /> or or Modeled Area Width* 250 (ft) W Variable* Data used directly in model. <br /> Hydraulic Conductivity K 2.9E-02 (cm/sec) Simulation Time* 10 (yr) j �'� value calculated by model. <br /> Hydraulic Gradient i 0.0005 (ft/ft) (Don't enter any data). <br /> Porosity n 0.3 () 6. SOURCE DATA <br /> Source Thickness inSat.Zone* 10 (ft) Vertical Plane Source: Look at Plume Cross- <br /> 2. DISPERSION Source zones. - section and Input Concentrations& Widths <br /> Longitudinal Dispersivity* alpha x 16.1 (ft) Width* ft Conc. m /c/LL for zones 1, 2, and 3 <br /> Transverse Dispersivity* alpha y 1.6 (ft) <br /> Vertical Dispersivity* alpha z 0.1 (ft) 25 00005 <br /> or or 100 2.8 <br /> Estimated Plume Length Lp 400 (ft) 25 0.0005 <br /> 0 0 <br /> 3. ADSORPTION Source Halflife(see Help): <br /> Retardation Factor* R 2.0 (-) (yr) View of Plume Looking Down <br /> or or Inst.React. 1st Order <br /> Soil Bulk Density rho 1.7 (kg/1) Soluble Mass 2.4 (Kg) Observed Centerline Concentrations at Monitoring Wells <br /> Partition Coefficient Koc 11.2 (Likg) In Source NAPL,Soil if No Data Leave Blank or Enter"0" <br /> FractionOrganicCarbon foc 1.6E-2 (-) 7. FIELD DATA FOR COMPARISON <br /> Concentration(mg/L) <br /> F- <br /> 4. BIODEGRADATION Dist.from Source (ft) :/ .I 1 240 1 320 1 400 1 480 1 560 1 640 0 1 :00 <br /> 1 st Order Decay Coeff lambda 3.6E-1 (per yr) <br /> or or S. CHOOSE TYPE OF OUTPUT TO SEE: <br /> Solute Half-Life t-half 1.91 (year) (E/e'n Recalculate This <br /> or Instantaneous Reaction Model RUN Help Sheet <br /> Delta Oxygen* DO (mg/L) CENTERLINEJ;RUNARRAYDelta Nitrate* NO3 (mg/L) Paste Example Dataset <br /> Observed Ferrous Iron* Fel+ (mg/L) View Out utw Output <br /> Delta Sulfate* SO4 (mg/L) P P Restore Formulas for Vs, Dispersivities, R, <br /> lambda, other <br /> Observed Methane* CH4 (mg/L) <br />