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0 <br /> EXHIBIT T <br /> DESIGNATED MINING OPERATION <br /> T-1 DEFINITION OF DESIGNATED MINING OPERATION <br /> The Mined Land Reclamation Act 34-32-101 et. seq., C.R.S. 1973 as amended provides the <br /> definition of a "designated mining operation" in 34-32-102(3.5)(a). A mining operation is a <br /> "designated mining operation" if <br /> • toxic or acidic chemicals used in extractive metallurgical processing are present on site; or <br /> • acid- or toxic-forming materials will be exposed or disturbed as a result of mining operations. <br /> T-2 CLASSIFICATION OF AMERALIA ROCK SCHOOL LEASE EXPERIMENTAL <br /> NAHCOLITE MINE PROJECT <br /> The AmeriAlia Rock School Lease Experimental Nahcolite Mine Project will use pressurized, <br /> heated water to dissolve nahcolite into a solution form. The solution mining process will not result <br /> in the exposure or disturbance of any acid- or toxic-forming materials. <br /> The sodium solution will be pumped from the solution mining cavity to surface processing facilities. <br /> Processing will not involve extractive metallurgical processes, and metallurgical processing <br /> chemicals will not be present on site. The sodium solution is not toxic or acid-forming. The solution <br /> will contain about 25 percent sodium bicarbonate, 3 percent sodium carbonate, less than 1 percent <br /> sodium chloride, and 61 percent water. The pH will range from approximately 8.2 to 9.5. Hence, <br /> the Project is not by definition a designated mining operation. <br /> G:\LM\M78545.002\Reclamation\Reciamexh.DOC T-1 <br />