2009-05-19_REVISION - M1977416 - Laserfiche WebLink

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Section 2 Methodology • TEL 1. fl A IKA-ww -i 0w11 -4 wi Cw1?r?1wM 11-1 • Soil Sample Identification Batch Sample Identification Volume of Solution (ml-) Mass of Soil Ratio mL: CDM-DEN-001 999.9 250.7 4 CDM-DEN-002 1003.1 100.4 10 DM-WMV4 CDM-DEN-003 1001.9 50.7 20 CDM-DEN-004 764.8 20.8 40 CDM-DEN-005 753.1 13.1 60 CDM-DEN-006 991.4 253.1 4 CDM-DEN-007 1003.2 102.6 10 DM-WRWS CDM-DEN-008 994.6 51.3 20 CDM-DEN-009 538.2 12.9 40 CDM-DEN-010 515.2 8.2 60 CDM-DEN-011 1013.3 251.4 4 CDM-DEN-012 1004.5 100 10 DM-SJ CDM-DEN-013 1001.2 50.2 20 CDM-DEN-014 899.8 22.7 40 CDM-DEN-015 902.6 15.5 60 CDM-DEN-016 992.5 251.1 4 CDM-DEN-017 1015.3 103 10 DM-TP CDM-DEN-018 997 52.1 20 CDM-DEN-019 751.8 20.1 40 CDM-DEN-020 753.2 13.4 60 CDM-DEN-021 998.3 252 4 CDM-DEN-022 987.2 104.3 10 DM-SV CDM-DEN-023 997.8 50.3 20 CDM-DEN-024 984.2 26.2 40 CDM-DEN-025 752.3 12.2 60 2.3 Data Presentation The adsorption of metals to the soil (mg/kg) was not measured directly due to the inherent heterogeneity of material; but was instead calculated using the following mass balance relationship: x (mg / kg) _ [C3. (mg / L) - Cfi.i (mg / L)l * V sDID (L) M M soil (kg) Where: x/m (mg/kg) = Concentration of metal adsorbed C9taft(mg/L) = Initial concentration of metal in the leachate (before adsorption test) Cs„w(mg/L) = Final concentration of metal in the leachate (after adsorption test) M.il(kg) = The dry mass of soil used in the batch Vsoln(L) = The volume of leach solution used in the batch • The x/m absorption concentration values were plotted versus the final concentrations to generate isotherms. The slope of the linear portion of the isotherm curves are then used to estimate the partition coefficient (Kd). cm 2-3 T:%498643enis- Min"%Task Order 3. DMO Sampling and Analysis Plan\Task 3.12 - Soil, Ore, Roek Data Assessment ReporMunday Rods ReporOAftechmentsVdtenuation Repod_"rking draft 040309.dm