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Table 2. Ruby Trust Solids - SPLP Analysis, 2009 (K. King, 2009). <br />This Table provides only the SPLP analysis of waste rock samples collected by K. King <br />in 2009. <br />Table 3. Ruby Trust Solids - ABA Analysis, 2009 (K. King, 2009). <br />This Table provides only the ABA analysis of waste rock samples collected by K. King in <br />2009. <br />Table 4. ABA Parameter Results using Total Sulfur and Pyritic Sulfur. <br />The ABA results (from Table 3) were re-calculated using the sample-specific pyritic <br />Suter percent composition to determine the ABA contributions by pyritic S. Both Total <br />S and pyritic S results are provided in this Table. <br />Table 5. Regulatory Thresholds for SPLP (mg/L) Results. <br />This Table provides the EPA regulatory thresholds applicable for comparison to SPLP <br />results to determine if the material is capable of leaching certain metals at potentially <br />hazardous/toxic levels. <br />Table 6. Regulatory Thresholds for Solids (mg/kg) Results (EPA, 2010). <br />This Table provides the soil/solids screening thresholds provided by the EPA to <br />determine whether metals in solids are of potential concern due to their toxicity to <br />exposed industrial workers. <br />Table 7. Guidelines for the Interpretation of ABA Results (Hammarstrom et <br />al., 2003). This Table summarizes the various agency (EPA) and literature derived <br />thresholds used to determine whether measured ABA concentrations yield acid- or <br />toxic- characteristic substances. <br />Table 8. SPLP Results Compared to Threshold Values. <br />The SPLP data obtained from both the 2oo8 and 2009 samples were compared to the <br />appropriate SPLP Regulatory Thresholds (from Table 5) to determine if any measured <br />concentration in Ruby Trust materials would be of potential concern. <br />Table 9. Solids Results Compared to Threshold Values. <br />The solids data obtained from the 2009 samples were compared to the appropriate <br />EPA-derived thresholds (from Table 6) to determine if any measured concentration in <br />Ruby Trust materials would be of potential concern. <br />........................................._..-- <br />4?Page