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2.04.612)(b) <br />Molybdenum Values ranged from 0.0 to 0.5 with an <br />average of 0.16 ppm. The DEQ sets a suitable level of less than <br />1.0 ppm. None of the samples exceed the 1.0 ppm limit. No <br />problems are anticipated with respect to Molybdenum. <br />Acid Base Potential Values ranged from 1.96 to 107 with an <br />average of 15.2 tons of CaC03 equivalent per 1000 tons. The DEQ <br />sets a suitable level of greater than -5 tons CaC03 equivalent <br />per 1000 tons. All of the samples are greater than the -5 limit. <br />No problems are anticipated with respect to acid base potential. <br />Arsenic Values for all of the samples were 0.0 <br />ppm. The DEQ sets a suitable level of less than 2.0 ppm for <br />arsenic. No problems are anticipated with respect to arsenic. <br />Iron Values ranges from 8.85 to 304 with an <br />average of 91.1 ppm. With respect to possible solution leaching <br />into groundwater, none is expected due to the fact that no <br />groundwater is expected to be encountered. Acidic conditions are <br />necessary to facilitate dissolution of iron. Since pH is a <br />concern as indicated above, the reclamation plan caill also pro- <br />vide for a monitoring plan to delineate any unsuitable areas of <br />regraded overburden with respect to iron. <br />Montana DSL removed the metals cadmium, copper, <br />manganese, mercury and zinc from their list of parameters for <br />• routine analysis. In 1981 Montana did publish suspect limits for <br />all of those metals which are presented below with the maximum <br />analytical values obtained from the applicant's overburden test- <br />ing. <br />Parameter 1981 DSL Limit Max Analytical Value <br />PPm PPm <br />Cadmium 1 .22 <br />Copper 40 8.06 <br />Lead 20 5.8 <br />Manganese 60 5.43 <br />Mercury 0.5 .122 <br />Zinc 40 34.3 <br />All of the analytical results listed above are <br />well below the DSL limits which were published in 1981. <br />• 2.04-10 <br />