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~~ <br /> <br />Exchangeable Sodium Percentage (ESP) if SAR is greater than 11 <br />Water Soluble Artions Carbonate (CO,), Bicarbonate (HCO3), and Sulfate (SO.) <br />Ammonium (NH.) and Nitrate (N0,) <br />Boron (B) <br />Selenium (Se) <br />Molybdenum (Mo) <br />Manganese (Mn) <br />Iron (Fe) <br />Sulfur (S) or Acid Potential (AP) <br />Neutralization Potential (NP) <br />Acid-Base Potential (ABP) <br />Copper (Cu) -1 location only <br />Nickel (Ni) - 1 location only <br />Zinc (Zn) - 1 location only <br />Cadmium (Cd) - 1 location only <br />Mercury (Hg) -1 location only <br />Lead (Pb) - 1 location only <br />Arsenic (As) -1 location only <br />These parameters were analyzed on the New Horizon 2 geologic strata to document the physical and <br />chemical properties of the OIU, to compare these properties to ground water quality, to develop <br />effective and efficient OIU handling procedures, and to determine potential reclamation success. The <br />following discussion describes the importance and applicability of each physical and chemical test <br />that was completed. Since portions of the overburden will be used as a root growth medium beneath <br />the topsoil, the words soil and overburden are used here interchangeably. <br />~. Soil reaction (or pH) of the growth medium significantly affects the availability of essential <br />nutrients in addition to the solubility of potentially toxic ions. Soils with a pH ranging from 7.5 to 8.4 <br />contain alkaline earth carbonates and may be alkali. Soils With a pH greater than 8.5 are nearly <br />always alkali and contain a large percentage of alkaline-earth carbonates (USDA, 1951 and USDA, <br />1969). Soils with pH less than 5.0 usually contain solubilized aluminum and excessive amounts of <br />other heavy metal trace elements which are soluble under acid conditions. Total nutrient availability <br />• Revised 9/99 2.04.6-13 <br />