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Paragon Anafytics <br />INORGANICS CASE NARRATIVE <br />CEMEX, Inc. <br />Order Number - 0612084 <br />1. This report consists of 1 water sample. <br />2. The sample was received cool and intact on 12/13/06. <br />3. The sample was prepazed for analysis based on Methods for the Chemical <br />Analysis of Waters and Wastes (MCAWW), May 1994 procedures and <br />Environmental Monitoring Systems Laboratory (EMSL) Rev 2.1 procedures. <br />4. The sample was analyzed following MCAWW and EMSL procedures for the <br />following methods <br />Anal e Method SOP # <br />pH 150.1 1126 Rev 15 <br />Specific conductance 120.1 1128 Rev 8 <br />TSS 160.2 1100 Rev 9 <br />Chloride 300.0 1113 Rev 9 <br />Sulfate 300.0 1113 Rev 9 <br />5. All standards and solutions were used within their recommended shelf life. <br />6. The sample was prepared and analyzed within the established hold time for each <br />analysis. <br />All in house quality control procedures were followed, as described below. <br />7. General quality control procedures. <br />^ A preparation (method) blank and laboratory control sample (LCS) were <br />prepared and analyzed with the samples in each prepazation batch. A <br />laboratory control sample duplicate (LCSD) was prepared and analyzed with <br />the sample in the TSS batch. There were not more than 20 samples in each <br />preparation batch. <br />^ _ The method blank associated with each batch was below the reporting limit <br />for the requested analytes. This indicates that no contaminants were <br />introduced to the samples during preparation and analysis. <br />