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VICTORSTORMWATER MANAGEMENT PLAN <br /> NEWMONT CRIPPLE CREEK AND <br /> GOLD MINING COMPANY <br /> footprint has been buried beneath Phase V of the Arequa Gulch VLF. Therefore, processing and milling <br /> operations do not have significant impacts to stormwater. <br /> The lime silo, located on the end of the secondary crushers and the conveyor that leads to the Load-Out- <br /> Bin (LOB), is loaded from trucks. Some release of lime may occur at the base of the silo as the truck transfer <br /> hose is connected and disconnected This material is periodically removed and placed on the VLF, where <br /> it joins lime that is routinely applied to ore for pH control. <br /> There are two VLF areas, the Arequa Gulch VLF and the Squaw Gulch VLF. Both VLFs are zero-discharge <br /> facilities constructed with single composite and double composite liner systems with high and low volume <br /> solution collection systems and leak collection and recovery systems. Precipitation within the VLF areas is <br /> contained and recycled within the VLF The VLFs are surrounded up-gradient by a stormwater diversion <br /> system designed to divert and convey flows generated by a 100-year, 24-hour precipitation design event. <br /> The diversion channels are designed to be stable under the peak flows and associated velocities generated <br /> from the design event. The channels use revetment, pipe structures, and energy dissipation devices where <br /> necessary to meet these design criteria. <br /> Piping systems carrying barren and pregnant leach solutions are located within the VLF containment <br /> systems to prevent accidental discharge. The ADR Facilities have bermed concrete floors with secondary <br /> containment sumps. The buildings are underlain by a synthetic liner. The VLF liner system extends to the <br /> exterior wall of the expanded ADR Facilities to direct any flow back to the VLFs, if necessary <br /> The primary pollution prevention method in the process area is the diversion of stormwater around these <br /> facilities. Other stormwater pollution prevention efforts include: (1) appropriate product storage and use; <br /> and (2) secondary and tertiary containment of process solutions, chemicals, and used materials. The ADR <br /> 1 Facility and laboratory are located on the drainage divide between the Wilson Creek tributary, Bateman <br /> Creek, and Arequa Gulch drainages. Therefore, there is limited run-on potential to the area outside these <br /> buildings. Potential run-on is directed to Bateman Creek and enters small detention basins to manage the <br /> sediment. The ADR 1 Facility and laboratory roadways and parking areas are managed by periodically <br /> grading the surface, applying dust palliatives and/or water, and gravel additions to the road surface as <br /> necessary Straw bales, silt fences, basins/sumps, and/or other BMPs accompanied by routine <br /> maintenance are used to control the sediment from these areas. <br /> 4.2.5 Crushing Facilities and Other Sources of Fugitive Dust <br /> The crusher maintenance area consists of a yard, maintenance buildings, and storage areas. Petroleum <br /> and liquid products are primarily stored in barrels and plastic containers located indoors or within bermed <br />