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-2- <br /> 2.05.6(3)(b)(iii) <br /> The ground water monitoring plan described in Chapter IV does not include <br /> monitoring for water quality. The applicant shall submit a plan that will <br /> monitor the effect of mining operations on the water quality of the Mesa- <br /> verde and alluvial aquifers. <br /> The text (Chapter IV, p. la) states there are four ground water monitoring <br /> wells. Exhibit III-E-1 indicates three wells are to be used for monitor- <br /> ing purposes. The applicant shall include the location of the fourth and <br /> any additional wells on Exhibit III-E-1. <br /> The text (Chapter IV, P. 19) states that wells will be installed in refuse <br /> and tunnel spoil disposal areas for monitoring. The applicant shall pro- <br /> vide a list of parameters that will be sampled in the monitoring plan to <br /> determine if infiltrating water is leaching undesirable materials from the <br /> spoil. <br /> 2.05.6(3)(b)(iv) <br /> The text (Chapter IV, p. 25) states the Upper and Middle sandstone units <br /> of the Mesaverde Formation possess transmissivi ties and specific yields of <br /> such low values that regional hydrology would not be influenced signifi- <br /> cantly by mining activities. Chapter III, Section C, p. 25 states that <br /> the transmissivities of the three units in the Mesaverde are expected to <br /> range from 10-2 to one ft/day, and the specific yield is expected to <br /> range from 5-7%. The applicant should provide specific data and a more <br /> detailed discussion including methods used in these statements. <br /> Chapter III, Section E, p. 12 discusses the impacts of mining on ground <br /> water quantity. The applicant should include a discussion of the impacts <br /> on ground water quality. <br /> Table 783. 15.4 reports levels of iron and manganese in the Coal Creek <br /> alluvium that are extremely high. If this is not a typographical error , <br /> the applicant should provide an explanation of the source of these levels. <br /> 2.05.6(3)(b)(iv) <br /> The applicant shall provide a discussion of the possible impacts to the <br /> quantity and quality of the surface water in the permit and adjacent area <br /> as a result of the mining operations. <br />