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PERMIT#:M-1977-493 <br /> INSPECTOR'S INITIALS:ACY <br /> INSPECTION DATE:December 16,2021 <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. Alex Ungers and Eric Detmer represented Climax <br /> Molybdenum Company and accompanied Amy Yeldell of the Division on the inspection. <br /> The primary focus of this inspection was the dam faces, seepage collection ponds and pump back systems. <br /> Specifically: <br /> • 5 Dam <br /> • 3 Dam <br /> • 1 Dam <br /> • Robinson Lake Dam/Pump House <br /> • 4 Dam <br /> Division staff first checked in at the guard station at the main gates located on the east side of HWY 91. Staff <br /> then had a brief meeting with Climax staff including Diana Kelts to discuss the upcoming permit revisions and <br /> general permitting status for the site. The weather was clear during the inspection, however the entire site was <br /> covered in snow. Roads were well maintained and the site was completely accessible. <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 5 Dam Seepage water is collected from the Mayflower TSF at the base of Dam 5. Seepage water <br /> goes through two concrete lined ponds. The ponds were only partially froze at this time. Water then enters the 5 <br /> Dam (Mayflower) Pump Station where it is pumped back by vertical turbine pumps to the 3 Dam Pump Station <br /> or the water pool on the Mayflower TSF. The Division inspected the inside of the Mayflower pump station. The <br /> building was well kept, no leaks on pumps or other spills were apparent. <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 3 Dam Seepage water from the Tenmile TSF is collected in a small mostly frozen pond at the <br /> base of Dam 3. Seepage from the pond goes to the 3 Dam Pump Station where it is pumped back by vertical <br /> turbine pumps to the SDP or diverted to the water pool on the Mayflower TSF. The Division inspected the <br /> inside of the 3 Dam Pump Station. The building was well kept,no leaks on pumps or other spills were apparent. <br /> There is a lime tank located within the building. The 3 Dam Pump Station building is slated for demolition in a <br /> few years as the Mayflower TSF level will eventually overtop the 3 Dam Pump building. <br /> 1 Dam <br /> The face of 1 Dam appeared to be in good condition. No staining or other visual indicators of a problem were <br /> observed. Seepage from Dam 1 (Robinson Pond)reports to Tim's pond then the Warren's Pond and into the <br /> Warren Pump Station. Ponds were mostly frozen. Water is then transported to the SDP or Tenmile TSF water <br /> pool. Staff did not inspect the inside of the Warren Pump Station. <br /> Robinson Lake Dam and Pump House <br /> The face of Robinson Lake Dam appeared to be in good condition. No staining or other visual indicators of a <br /> problem were observed. Seepage water off of Robinson Lake goes into the Robinson Pump House. The water is <br /> Page 2 of 7 <br />