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PERMIT#:M-1977-493 <br /> INSPECTOR'S INITIALS:ACY <br /> INSPECTION DATE:March 8,2022 <br /> OBSERVATIONS <br /> This inspection was conducted as part of the Colorado Division of Reclamation, Mining and Safety (Division) <br /> normal monitoring program. Climax Mine is a 112d-3 Molybdenum mine and milling operation located in <br /> Summit, Eagle and Lake County and is accessed from Colorado State Highway 91. The site consists of 14,000 <br /> permitted acres, of which approximately 8,000 acres have been affected. The Division currently holds <br /> $91,011,850.00 in Financial Warranty for the site. Eric Detmer represented Climax Molybdenum Company and <br /> accompanied Amy Yeldell of the Division on the inspection. <br /> Division staff first checked in at the guard station at the main gates located on the east side of HWY 91. The <br /> weather was mostly clear during the inspection, however the entire site was covered in snow and part of the site <br /> was receiving new snow during the inspection. Roads were well maintained and the site was completely <br /> accessible. <br /> The following areas were inspected: <br /> • 2 Dam <br /> • 3 Dam <br /> • 5 Dam <br /> • McNulty OSF <br /> • North 40 OSF <br /> 2 Dam <br /> The face of 2 Dam appeared to be in good condition.No staining or other visual indicators of a problem were <br /> observed. The Robinson TSF and dam remain covered in snow. A small flow path through the TSF was <br /> observed,this flowing water appeared to be an empheral flow which was not negatively impacting the TSF. <br /> 3 Dam <br /> The face of 3 Dam appeared to be in good condition.No staining or other visual indicators of a problem were <br /> observed. The Tenmile TSF and 3 dam remain covered in snow. The 3 Dam Seepage water from the Tenmile <br /> TSF is collected in a small mostly frozen pond at the base of Dam 3. Water was observed pumping into the <br /> pond and the pond continues to have adequate freeboard suggesting that all pump systems remain functional. <br /> The actual pump station was not inspected. <br /> 5 Dam <br /> The face of 5 Dam appeared to be in good condition. No staining or other visual indicators of a problem were <br /> observed. The Mayflower TSF and 5 dam remain covered in snow. The 5 Dam Seepage water is collected from <br /> the Mayflower TSF at the base of Dam 5. Seepage water goes through two concrete lined ponds. Water then <br /> enters the 5 Dam (Mayflower) Pump Station where it is pumped back by vertical turbine pumps to the 3 Dam <br /> Pump Station or the water pool on the Mayflower TSF. Mr. Detmer mention potential piping changes <br /> connecting the seepage collection ponds. Piping would be of a similar kind, but would remove the T to combine <br /> the two pond flows and result in two straight pipes. Climax will reach out to the Division regarding any <br /> necessary permitting revisions prior to making these changes in the field. <br /> Page 2 of 7 <br />