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Climax Molybdenum Company HENDERSON MINE SWMP <br /> Empire, CO April 2021 <br /> 4.0 IDENTIFICATION OF POTENTIAL POLLUTANT SOURCES <br /> Table 4.1 summarizes the purpose and location of potential storm water pollutant sources <br /> associated with the Mine and URAD WTP located in disturbed areas (see Figures in Appendix A <br /> for delineation of disturbed and undisturbed areas), areas used for material storage or handling that <br /> are exposed to precipitation and other areas with potential sources of pollution. The following <br /> information is included within the table. <br /> • Potential pollutant source; <br /> • Location and purpose of each potential storm water pollutant source; <br /> • Outfall through which potentially impacted storm water may be discharged; <br /> • The likelihood that the potential storm water pollutant source may contribute pollutants <br /> to storm water that is discharged off-site; and <br /> • The basis for the likelihood determination. <br /> The pollutant source numbers(PS#)and outfall numbers(OF-#)in Table 4.1 may be used to locate <br /> the sources and outfalls on the figures in Appendix A for the Mine and URAD WTP. <br /> Specific preventative maintenance, good housekeeping, and spill prevention and response <br /> procedures for each potential pollutant source are identified in Section 5.0 along with other BMPs. <br /> As new potential pollution sources are identified, Table 4.1 will be updated (in addition to Table <br /> 5.1, Storm Water Management Maps and Inspection Forms, as applicable). <br /> The below key clarifies naming conventions used for pollutant sources and outfalls. <br /> PS- Followed by # Pollutant sources at the Mine. <br /> OF- Followed by # Outfalls at the Mine. <br /> PS- Followed by U-# Pollutant sources at the URAD <br /> WTP. <br /> OF- Followed by U# I Outfalls at the URAD WTP. <br /> Storm water outfalls are identified in the field with 6" x 9" reflective white metal signs with <br /> green lettering. An example of an outfall sign is provided below(not to scale). <br /> STORMWATER <br /> OUTFALL <br /> OF-1 <br /> Page 4-1 <br />