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Copper (Ppm) <br />Lead (ppm) <br />Iron (ppm) <br />Manganese (ppm) <br />Zinc (ppm) Same as <br />Nickel (ppm) <br />Mercury (total ppb) <br />Selenium (ppm) <br />Molybdenum (ppm) <br />DTPA extractable. Soil Science Soc. <br />of America Proceedings, Vol. 35, No. 4, <br />1971, P 600 -602. <br />DTPA - same as copper. <br />DTPA - 0.1N Ammonium nitrate or 0.1N <br />Ammonium acetate or 0.005N nitric acid. <br />Ref: Diagnostic criteria for plants <br />and soils by Chapman. <br />DTPA extractable. o Sc nce Soc. <br />of America Pr d 0 35, No. 4, <br />1971, P <br />•Polarograpbic waves. ASA Agronomy' <br />Monograph No. 9, Pages 885 -887, Method <br />56 -6 or describe procedure. <br />Acid soluble soil Rg by cold vapor <br />using varies techtron. AA6 and varian <br />Hg Kit. Ref: W.R. Hatch and W.L. Ott, <br />Analytical Chemistry, Vol. 40, No. 14, <br />December, 1968. <br />Analysis for the 'sum of selenate, <br />selenate, and water soluble organic Se. <br />Ref: ASA Agronomy Monograph No. 9, <br />Page 1122, Method 80 -3.2. <br />Acid Ammonium oxalate method 74 -2, <br />P 1054 -1057. ASA Agronomy Monograph <br />No. 9. <br />Boron (ppm) Same as in Soil Survey A -8. <br />Nitrate (NO3) Same as in Retopsoiled layer B -i. <br />Ammonium (n Same as in Retopsoiled layer B -1. <br />Type and percentage of clay. Physical and chemical properties as <br />they may affect texture or chemistry of overburden, stability of <br />material and hydrology of overburden. <br />Physical data reported are to include: <br />1. Bulk density of undisturbed overburden. <br />2. "Bulk density" of sample approximating physical state after mining <br />( "post mining state "). See also Section VI. <br />3. Particle size distribution of "post mining state" of overburden <br />materials. See also Section VI. <br />4. Particle size distribution of overburden samples crushed to state <br />which approximates maximum exposure (to leaching of elements) of <br />mineralogical forms. <br />f <br />For the area of operations, such data will be collected on a maximum spacing <br />of one hole per 16 hectares. Within the alluvial valley floor area and <br />