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Technical Revision (TR-28) Climax Molybdenum Company <br /> Environmental Protection Plan Permit No. M-1977-493 <br /> descriptions of all systems are provided in subsequent subsections, organized by watershed. <br /> An extensive clean water interceptor system has been established at Climax to convey un-impacted <br /> storm water around the process facilities and TSFs and to limit the amount of water to be treated and <br /> discharged. These systems, constructed primarily in the 1970s prior to the enactment of the DMO <br /> regulations, do not have specific, approved designs associated with them. Climax recognizes their <br /> importance to the overall water management system, but notes that the clean water interceptors do not <br /> appear to meet the definition of an EPF since they carry only un-impacted water around the site and do <br /> not contain or control designated chemicals or process solutions. As agreed upon with DRMS, although <br /> these systems are considered to be pre-EPF systems and do not contain or control designated chemicals <br /> or process solutions, they will be managed by Climax as internal EPFs. The interceptor systems are <br /> closely monitored, inspected and maintained as part of routine site monitoring activities Other than <br /> repair and maintenance/upgrades, any future expansion or modifications of the interceptors will be <br /> subject to review by DRMS, consistent with Section 6.4.21(10)(a)(ii) of the Rules. <br /> Table T-3: Potential Contaminant Sources and Environmental Protection Facilities at the <br /> Climax Mine <br /> Potential Area of Potential Contaminant Direct(Governing) Internal Controls <br /> Impacts Sources EPF/Control <br /> Impacted water from the flooded 5-Shaft Pump Station <br /> underground workings <br /> Upper Arkansas Run-off and seepage from the Storke Wastewater Pump <br /> River Watershed Storke Yard Station <br /> Run-off from road cuts and Storke Wastewater Pump <br /> overburden on Ceresco Ridge Station, Ceresco runoff <br /> above the Storke Yard collections stem <br /> 4 Dam Seepage 4 Dam Pump Station <br /> Robinson Lake and Dam - Robinson Lake Seepwater <br /> process water, seepage, Pump System, <br /> Upper Eagle River sediments Robinson Dam <br /> Watershed Robinson TSF and 1 Dam - arr Pond, <br /> W <br /> tailing, seepwater, toe drain Robinson Lake Pump Warren's Pump <br /> Station, System, Chalk <br /> discharge, Tenmile Tunnel <br /> drainage 1 Dam (Robinson TSF), Mountain <br /> Interceptor <br /> Designated chemicals for EPFs for designated <br /> concentrate production and chemicals and water <br /> water treatment chemicals treatment chemicals, <br /> Mill Process <br /> Upper Tenmile Water Tank, <br /> Creek Watershed Tenmile Tunnel, 2 <br /> 5 Dam Seepwater Pump Dam Spillway, , <br /> Impacted water including: System, Tenmile Decant, <br /> process water, seepage, run-off, ETDL, East Side Channel, Sludge <br /> underground mine water, and Tenmile TSF, Densification <br /> water from TSFs Mayflower TSF Plant(SDP), 3 <br /> Dam Pump <br /> Station, Property <br /> Discharge Water <br /> Treatment Plant <br /> EPP: Version R4 T-17 August 2018 <br />