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Mr. Michael Cunningham <br />CDRMS <br />December 19, 2013 <br />4. The Representative Sample is collected and sent to the Laboratory for testing <br />using proper chain of custody procedures. <br />5. Economic Performance testing is completed to test Economic Terms (per <br />Purchase or Milling Agreement) and determines the RoM Purchase Price. <br />6. Tailings Characterization testing is performed using SPLP for RoM and pH for <br />leachates in tailings produced in the laboratory. <br />It is important to note that maintaining a slight basic pH (typically 8 -9) is critical to optimal <br />performance of the milling process. Additionally, a slightly basic pH is also desirable in <br />the TSF. The pH of the TSF will be maintained to the range of 6.5 - 9. <br />Only RoM passing the Acceptance Criteria will be allowed onto the mill property. <br />Material failing the Acceptance Criteria will be rejected and will not be allowing onto the <br />property. <br />Economic Performance Tests <br />Economic Performance tests will be specific to each customer and Batch to be <br />processed. This information is confidential between Seller and Buyer. <br />Tailings Characterization Tests <br />Tailings Characterization Testing will include SPLP, XRF and pH testing. Table 1 will be <br />submitted quarterly to the Division for each new ore body, waste dump, or mine. <br />Table 1: Analyte Report <br />Analyte <br />Detection <br />Limit' <br />(mg/L <br />Observed <br />Value <br />(mg/L <br />XRF <br />Baseline <br />m <br />Antimony Sb <br />Aluminum <br />(Al)" <br />Arsenic <br />(As)" <br />Barium (Ba) <br />" <br />Beryllium <br />(Be)" <br />Boron B <br />" <br />Cadmium Cd <br />" <br />Chromium <br />(Cr)" <br />Cobalt <br />(Co)" <br />Copper(Cu) <br />" <br />Cyanide Free ] (CN ) <br />" <br />Fluoride F <br />" <br />Iron <br />(Fe)" <br />Lead <br />(Pb)" <br />Lithium (li) <br />" <br />Mercury H <br />" <br />Manganese Mn <br />" <br />Molybdenum (Mo) <br />it <br />" <br />Nickel Ni <br />" <br />Total Nitrate +Nitrite <br />11 <br />" <br />Selenium Se <br />" <br />Silver (A g) <br />Zinc (Zn) <br />" <br />1. Denotes Detection Limit of SPLP test method. <br />2. Observed Value of tailings. From laboratory test work. <br />3. Grade of analyte in tailings using XRF to establish bounds of representative sample. <br />