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PERMIT#: M-1977-493 <br /> INSPECTOR'S INITIALS:ECS <br /> INSPECTION DATE: May 8,2019 <br /> OBSERVATIONS <br /> This was a routine monitoring inspection for the Climax molybdenum mine, a 112d -3 hard rock mine operated <br /> by the Climax Molybdenum Company—a division of Freeport McMoRan. The inspection was conducted by <br /> DRMS representative Eric Scott. DRMS arrived on-site at approximately 0930 and met with Climax <br /> representatives James Haag and Diana Keltz after signing in with site security. <br /> Due to extensive snow cover, this inspection was somewhat abbreviated and consisted of site discussion with <br /> Climax personnel, followed by a follow up-inspection of several of the pump stations utilized across the site. <br /> DRMS and Climax briefly discussed several issues including: pH values at monitoring well MW2 and possible <br /> follow up actions, issues related to TR29 currently under review by DRMS, potential changes to the handling/ <br /> disposal of TPH contaminated soils, and other ongoing site activities. <br /> DRMS then accompanied Climax personnel to the Storke and Mayflower wastewater pump stations to check <br /> on some minor leaks that were identified during previous inspections. DRMS observed a slight leak from the <br /> #1 pump at the Mayflower station, but the previous leak at that facility had been addressed. The leak at the <br /> Storke yard station has not yet been repaired, but has been characterized by Climax and will need to be <br /> addressed during the summer work season. The#4 pump fitting in the Storke wastewater pump station was <br /> also observed to be leaking a bit at the time of the inspection. It is important to note that any impacted water <br /> leaking from inside these pumping facilities is captured and recirculated, and not released into the <br /> environment untreated. <br /> DRMS observed at the time of the inspection, that snow was being cleared from the beach area of the <br /> Mayflower tailings dam prior to tailings discharge into the beach area. An area was also being cleared <br /> immediately east of the water treatment facility to serve as a staging/laydown area for the materials to be <br /> used in the upgrade of the West Interceptor ditch this summer. DRMS then observed the waste storage <br /> building and general conditions in the surrounding mill yard area before returning to the site offices and <br /> departing the site. <br /> No issues of concern were noted during this inspection. <br /> Inspection Contact Address <br /> James Haag <br /> Climax Molybdenum Company <br /> Highway 91,Fremont Pass <br /> Climax, CO 80429 <br /> Page 2 of 2 <br />