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Technical Revision (TR -28) Climax Molybdenum Company <br />Environmental Protection Plan Permit No. M-1977-493 <br />Chemical <br />Product <br />Storage <br />Tank <br />Secondary <br />Type & <br />Name <br />Storage Location <br />Container <br />Storage <br />Containment <br />Use <br />Type <br />Capacity <br />Calcium <br />pH Modifier <br />Oxide (CaO, <br />Lime mix area and <br />1 silo at the mill <br />225 tons <br />Yes <br />Lime, <br />silo <br />uicklime <br />Iron and <br />Sodium <br />Reagent Area of <br />Not currently <br />Copper <br />Cyanide <br />Mill <br />NA <br />in use <br />NA <br />Depressant <br />NaCN <br />Water Treatment Chemicals <br />GreatFloc <br />3,500 and <br />5,500 <br />Flocculent <br />5500, DAF10 <br />SDP and PDWTP <br />3,000 gallon <br />gallons <br />Yes <br />or similar <br />pH <br />Adjustment, <br />Calcium <br />Lime Station, SDP, <br />Hydroxide <br />Oxide (CaO, <br />3 Dam Pump <br />Lime silos <br />Yes <br />precipitation <br />Lime, <br />Station, PDWTP <br />of metal <br />quicklime) <br />ions <br />pH <br />adjustment <br />Sulfuric Acid <br />4,300 <br />to meet <br />(H2SO4) <br />PDWTP <br />PDWTP <br />gallons <br />Yes <br />discharge <br />standards <br />Detailed information regarding effects on human health and the environment is found in the MSDS data in <br />Appendix T -B. <br />T-3.2 Designated Chemicals Information <br />T-3.2.1 Collector <br />A collector reagent 'collects' the molybdenum in a froth flotation extraction process allowing the <br />molybdenum to float to the surface of the floatation cells. Nalco TX 9866 or Calumet Hydrocal 60 (or <br />similar) is used as a collector reagent in the milling process. Nalco TX 9866 and Calumet Hydrocal 60 <br />are combustible petroleum distillates and a skin and eye irritant. <br />In the environment, the collector reacts similar to other petroleum distillates and can cause short-term <br />damage to terrestrial and aquatic ecosystems Spills should be contained with inert absorbents, and <br />contaminated soils should be removed. <br />The collector is stored in one tank with a capacity of 13,500 gallons, located in the reagent storage area <br />of the mill building (see Mill Building Detail - Area 450 on the south side of the mill building on Figure AM - <br />06 -T-05). Secondary containment with a volume greater than that of the tank is provided in the reagent <br />storage area (see Reagent Storage Area Detail Figure AM -06-T-06). Tank level indication is available <br />locally as well as through the control system. The control system will alarm for a given tank low and high <br />level. Both a horn and beacon are provided at the unloading point to indicate a tank high level. <br />In the event of a storage tank failure, the collector will be contained in the reagent storage area via <br />secondary containment. The secondary containment area is equipped with a sump but no sump pump. <br />In the event of a release in this area, a pump will be placed in the secondary containment sump and the <br />collector will be routed back into the process circuit or pumped into a suitable container for proper <br />disposal through direction from the environmental department. A spill that occurs during offloading into <br />the storage tank will be handled similarly using a sump located in the offloading area. <br />When needed, collector may be stored as totes in Area 430 (floatation). Area 430 has a concrete floor <br />EPP: Version R4 T-9 August 2018 <br />