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Climax Molybdenum Company <br /> Permit No.1977-342 Technical Revision JR-35) <br /> liquid CO2 will be stored in a 775 gallon (4,929 pounds) Microbulk Storage Tank prior to mixing with water for use <br /> in effluent neutralization. <br /> 2.4 Ancillary Facilities <br /> Other infrastructure improvements required to support the WTP include the following: <br /> Pipelines <br /> Water and Sanitary Sewer Systems <br /> Power and Utilities <br /> Roads and Access <br /> Point of Discharge <br /> 2.4.1 Pipelines <br /> The primary pipelines to be constructed as part of the WTP project are depicted on the Site Civil & Underground <br /> Piping Plan, drawing 530-DD10-PLN-601 in Appendix A and include the following: <br /> 1) Influent pipeline <br /> 2) Raw/fresh water pipeline <br /> 3) Off-spec water/sludge pipeline <br /> 4) Treated water/effluent pipeline <br /> The influent pipeline and the raw/fresh water pipelines will be constructed in a common utility corridor trench from <br /> the mill area (also to be used for electrical and fiber optic). The pipelines will be approximately 400 ft in length, <br /> with the influent pipeline constructed of 6" high density polyethylene (HDPE) and the raw/fresh water 3" HDPE. <br /> The tie-ins at the mill will be above ground, however the pipelines will be buried over the majority of the length to <br /> the WTP. <br /> The off-spec water/sludge pipeline will convey off-specification water (not meeting discharge criteria) or waste <br /> sludge through a buried 8" HDPE pipeline approximately 490 ft in length between the WTP and a tie-in point with <br /> the existing Bear Paw Pipeline northwest of the WTP. The Bear Paw Pipeline is an existing buried pipeline used <br /> to convey collected waters to the TSF, including sump water from the Mobile equipment shop, scrubber water <br /> from the Headhouse /conveyor system, and North Mill site stormwater. The Bear Paw pipeline is 18" HDPE for <br /> the first approximately 270 ft, and thereafter is an 18" corrugated metal pipe slip-lined with a 16" HDPE pipe. <br /> The treated water/ effluent pipeline will convey treated water through a buried 8" HDPE pipeline approximately <br /> 1,072 ft in length between the WTP and a tie-in point with the existing Williams Fork Pipeline just east of the Mill <br /> Access Road. The proposed pipeline will be routed within an existing road for the majority of its alignment. The <br /> effluent pipeline will connect to the existing Williams Fork Pipeline in a concrete valve vault. The existing Williams <br /> Fork Pipeline is a 24"steel pipeline which will convey the treated water to the discharge point at the Williams Fork <br /> Pump Station. <br /> A more detailed description of the existing Williams Fork Pump Station and its use in conjunction with the WTP is <br /> provided in Section 2.4.5. <br /> The roof drain pipeline, discussed in Section 2.1, which will convey stormwater through a buried 8" HDPE pipe to <br /> the existing Bear Paw Drainage Pipeline is also shown on the Site Civil & Underground Piping Plan included in <br /> Appendix A. <br /> 2.4.2 Water and Sanitary Sewer <br /> Water pulled directly from the mill raw/fresh water line will be used to feed the lime slurry tank, polymer make-up <br /> tank, and also used for gland water supply. <br /> Raw/fresh water will also be fed to the potable water system, treated and used in the breakroom, lavatories, and <br /> laboratory. Potable water will also be used in the tepid water system for the building safety shower/eyewash <br /> April 2022 <br />