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Response <br /> NEWMONT Countermeasures Plan for the Cresson Project <br /> NORTHAMEPICA <br /> Sustainability <br /> 3.4 Evaluation of Spill Potential <br /> Evaluation of spill potential of materials stored at each facility is described in further detail under Section 4.0. <br /> 3.4.1 Drainage Description <br /> The CC&V mine site is located on the topographic divide between Fourmile Creek and Beaver Creek drainages that <br /> are in the upper Arkansas River basin. Stormwater runoff,generated by intense rain and sleet events of short <br /> duration,and by rapid snowmelt, is diverted away from areas of disturbance, including storage areas for <br /> petroleum products and hazardous substances. Runoff from inside the disturbed area is directed through sediment <br /> control structures,which provide additional spill control in the event that a potential contaminant should move <br /> outside the immediate release area.Surface waters are monitored within the watershed and also downstream of <br /> the Cripple Creek Mining District. <br /> Diversion of stormwater runoff and control of runoff from disturbed areas are conducted: (1) in accordance with <br /> the General Stormwater Permit issued to CC&V for its activities in the Cripple Creek Mining District; (2) in <br /> accordance with applicable provisions of the mining reclamation permits issued by the Department of Natural <br /> Resources, DRMS; and (3) in accordance with Conditional Use permits issued by Teller County. <br /> Ground water in the area is almost always quite deep—on the order of 3,000 feet. Shallower perched water tables <br /> exist, but are small and discontinuous. Ground water is monitored at certain perimeter down gradient locations at <br /> the Cresson Project. <br /> Spill Potential of Materials stored at each facility is described in further detail under Section 4.0. <br /> 3.4.2 Spill Path Monitoring <br /> If a spill or leak has the potential to migrate from the point of occurrence,spill monitoring will be implemented if <br /> necessary following clean up. Development of the monitoring plan will be determined by the nature and extent of <br /> the spill and the potential environmental hazards created by the spill. <br /> The potential for spills of fuel, oil, coolants,ANFO, liquid sodium hydroxide,or other chemical reagents to migrate <br /> from the point of occurrence is dependant on the amount of the spill,the ground conditions at the time of the <br /> release,the topography,and the nature of the spill control measures in place.These materials will be quickly <br /> absorbed into soil or adsorbent material. If a spill of these materials has the potential to migrate to surface water, <br /> a berm(s)will be placed upgradient of the potential point of entry to the water and surface water monitoring will <br /> be implemented downstream, if necessary. <br /> Spill monitoring equipment is available on site.Soil along the spill pathway will be monitored and decontaminated <br /> and/or moved as necessary. If there is a potential for the spill to migrate off-site,samples will be obtained <br /> expeditiously from down-gradient,existing surface and groundwater stations and any additional water monitoring <br /> points deemed appropriate to monitor the potential migration pathways.The spilled material also may be tested <br /> to evaluate the effectiveness of mitigation. <br /> 3.4.3 Discharge History <br /> There have been no reportable spills to waters of the State or U.S.during the past three years. <br /> This section will be updated if any discharges occur;See Section 6 for details on discharge notification <br /> 3.5 Inspections,Tests,and Records <br /> As required by the SPCC Rule, CC&V personnel or other designated personnel will perform the inspections,tests, <br /> and evaluations described in this section. <br /> 3.5.1 Routine Inspections <br /> Routine inspections of the oil storage areas are conducted in each work area by operations personnel in <br /> conjunction with their duties.This type of inspection involves: (1)looking for container tank,and/or piping damage <br /> - -- ----- - ----- - - - <br /> Department THIS DOCUMENT IS UNCONTROLLED IN HARDCOPY FORMAT Doc Id NA-CCV-SE— R-PLAN- <br /> 1930 <br /> -- - - --- -- -- -... ------- - ---- ..._. --- ------------ ---------- _.. -- <br /> -. - - -------...--- -- -- <br />