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<br />Daub & Associates, Inc. Page 3-26 2015 NS Mine Plan Modification <br />1/5/2016 Section 3 General Site Conditions <br />Analysis Reference Procedure <br />1. Preparation of soils for analysis <br />2. pH (determination on paste) USDA Handbook 60, p. 102. <br />3. Conductivity mmhos/cm on saturation <br />extract <br />USDA Handbook 60, pp. 88-89. <br />5. Calcium - in meq/1 on the extract Preparation of extract, USDA Handbook 60, <br />p. 84, methods 2 and 3a. Analysis of atomic <br />absorption spectrophotometry (Perkin-Elmer <br />Analytical Methods). <br />6. Magnesium - in meq/1 Same as for calcium. <br />7. Sodium - in meq/1 Same as for calcium. <br />8. SAR (Sodium Adsorption Ratio) USDA Handbook 60, p. 26. <br />Where Na+, Ca2+, and Mg2+ are the <br />concentrations of those ions found in 5, 6, and <br />7 above. <br />9. Boron (A) - Hot water extract reported ASA Agronomy Monograph #9 (1965), part <br />2, method 75-4, pp. 1062 - 1063. <br />10. Particle size distribution (mechanical <br />analysis) as % sand, % silt, % clay and very <br />fine sand as well as the USDA textural <br />classification. <br />ASA Agronomy Monograph #9, part 1, <br />method 43-5, pp. 562-566. If EC is 4 <br />mmhos/cm or more, include field texture <br />determination. <br />4. Saturation percentage USDA Handbook 60, p. 84, methods 2 and <br />3a. <br />ANALYSES AND PROCEDURES FOR DETERMINING <br />SOIL SUITABILITY FOR TOPSOIL <br />USDA Handbook 60 (1954), pp. 83-84; all <br />analyses should be conducted on samples that <br />have been passed through at least a 20-mesh <br />sieve. <br />2 <br />22 ++ <br />+ <br />+= <br />MgCa <br />NaSAR <br /> <br />Table 3-6. Analyses and procedures for determining soil suitability for topsoil.