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<br />TABLE 6. (page 3) <br />Nitrate-Nitrite <br />Phosphate (POg3as P) <br />a major component of <br />explosives commonly <br />the western U.S.; an <br />material suitability <br />a common constituent <br />reclaimed areas, <br /> <br />ammonium-nitrate <br />used at surface mines in <br />indicator of spoils <br />as a plant growth medium; <br />of fertilizers spread on <br />a common constituent of fertilizers spread on <br />reclaimed areas. <br />Sodium (Na+) a predominent cation in mine drainage at the <br />Edna Mine, concentration increased above <br />background levels (McWhorter, et al., 1975); <br />concentrations may increase in waters near <br />surface mines in the western U.S. <br />(Everett, 1979); needed to evaluate ion <br />balances; needed to calculate SAR. <br />Sulfate (S04) a predominant anion in mine drainage at the <br />Edna Mine, concentration increased above <br />background levels iMcWhorter, et a1., 1975); <br />concentrations may increase in waters near <br />surface mines in the western U. S. <br />(Everett, 1979); needed to evaluate ion <br />balances. <br />Sulfur an indicator of the acid-base forming potential <br />% pyritic sulfur of spoils or refuse rock: % pyritic sulfur is <br />% sulfate sulfur an indicator of acid-forming potential; <br />% organic sulfur % sulfate sulfur is an indicator of <br />total sulfur base-forming potential; % organic sulfur is an <br />indicator of the potential for spontaneous <br />combustion of a mine's refuse pile. <br />Trace Elements <br />Aluminum (A1) a major component of clays: may become attached <br />to suspended colloids; aluminum bound to clay <br />colloids may clog gilts in fish, resulting in <br />suffocation (Willingham, 1982). <br />Arsenic (As) concentration reported to increase in mine <br />spoils water at the Edna Mine <br />(Skogerboe, et al., 1979); concentrations may <br />increase in waters near surface mines in the <br />western U.S. (Everett, 1979); likely to have a <br />higher than average concentration in coal and <br />associated shales (NAS, 1977); may be a <br />pollutant associated with fly ash disposal in <br />surface mines in the western U.S. <br />(Everett, 1973j= <br />