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Order # MO-08-191 Colorado Divieon of Minerals Page 2 <br />ANALYTICA, INC. CASE NARRATIVE <br />Samples were prepared and analyzed according to methods outlined in the <br />following references: <br />o Methods for the Determination of Metals in Environmental Samples, <br />EPA/600/R-94/111, May 1994. <br />o Methods for the Determination of Inorganic Substances in Environmental <br />Samples, EPA/600/R-93/100, August 1993. <br />o Methods for Chemical Analysis of Water and Wastes, USEPA 600/4-79-020, <br />March 1983. <br />Problems encountered with the analyses are discussed in the following narrative. <br />The method blank spike and matrix spike recoveries for cadmium exceeded the <br />upper control limits. However, since no cadmium was detected in the associated <br />samples, there is no impact on the data. <br />