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n ' <br />West Elk Coal Company <br />Overburden Analysis Project <br />February, 1989 <br />Analytical Methodology <br />Parameter Method Reference <br /> <br />Preparation Air dry @ 40 C Crush/Pulverize to - 20 mesh i - 3 ' <br />Saturation % Saturated Paste -Dry of 105 C 10 - 2 ' <br />pH 1:5 Soil/Wauar Extraction -Analysis by Meter 10 - 3 ' <br />Conductivity 1:5 Soil/Water Extraction -Analysis by Meter 10 - 3 ' <br />Ca, Mg, Na & B 1:5 Soil/Water Extraction -Analysis by ICP t0 - 3 ' <br />t•Jitrate 1:5 Soil/Wa1er Extraction -Analysis Auto-Colorimelric 10 - 3 ' <br />Selenium 1:5 Soil/Water Extraction -Analysis by AA-Hydride [0 - 3 ' <br />Metals <br />Cd, Cu, Fe, Mn <br />Mo, Zn 1:2 Soil/AB-DTPA Extraction -Analysis by ICP 3 - 5 ' <br />Arsenic 1:2 Soil/AB-DTPA Extraction -Analysis by AA-Furnace 3 - 5 ' <br />Lead 1:2 Soil/AB-DTPA Extraction -Analysis by AA 3 - 5 ' <br />Mercury Total H2SO4/HNO3 Digestion Analysis by AA-Cold Vapor 22 - 2 ' <br />Sulfur Forms Acid Extract~ible/Non Extractable Sulfur 3.2.6 ~ <br />Combustible Solids Ignillon al 400 C 3.2.14 ~ <br />Particle Slze Hydrometer iHethod 15 - 5 ' <br />' 'Methods of Soil Analysis", Agronomy No. 9 ASA, 1986 <br />~'Fleld & Laboratory Methods Applicable to Overburdens and Mine Soils <br />EPA 600/2-78-054 March 1986. <br /> <br />