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processing operation (Onsite Chemical Storage Map). The safe handling of designated chemicals <br /> (and non-designated chemicals)is accomplished via operator training, secure storage, and routine <br /> maintenance of equipment. Materials and equipment are kept on site for emergencies in order to <br /> contain and clean up any spills that might occur. Spill cleanup kits are located in the shop-storage <br /> building and in the underground mill room. Fifty-five gallon drums, liners, and plastic sheeting are <br /> kept on site for storing and removing any designated chemical spillage and contaminated soil in the <br /> event a spill might occur. Based on the maximum sized reagent container transported to or kept on <br /> site, the largest quantity of designated chemical spilled would be 275 gallons. <br /> The designated chemical that is used in the extractive metallurgical process and used during the <br /> active mining process is stored on site within an EPF and within secondary confinement appropriate <br /> for the substance. The amount of designated chemicals stored on site will not exceed the amounts <br /> listed in the Table 1. Operators will use and store chemicals according to training and information <br /> contained with the SDS, and no designated chemicals will be disposed of onsite during active <br /> operations. <br /> During periods of temporary cessation designated chemicals will either be securely stored within the <br /> EPFs and secondary containment, or removed from the site for the duration of the cessation. No <br /> designated chemicals will be disposed of onsite during any temporary cessation. <br /> When the site enters the reclamation phase, all unused designated chemicals remaining will be <br /> removed from the site and returned to the manufacturer or disposed of offsite according to the <br /> manufacturer's recommendations and Federal, State, and local regulations. Reclamation will then be <br /> completed according to the approved reclamation plan. No designated chemicals will be disposed of <br /> onsite when the permit area is reclaimed. <br /> The mill facility does not discharge any additionally generated waters from the permitted site, and <br /> storm water is not anticipated to ever contact designated chemicals. As has been thoroughly <br /> investigated in previous reports, xanthate is considered non-hazardous by EPA and CDPHE, testing <br /> for the substance has found that it is used in low concentrations and has a short life span. Thus, <br /> future testing for xanthate is not considered necessary unless some unplanned or unauthorized release <br /> occurs, or it is used in a manner inconsistent with the use recommended by the manufacturer, and/or <br /> distributor. <br /> 7 FACILITIES EVALUATION (Environmental Protection Facility, EPF) <br /> EPF 1 -Mill Room <br /> All chemicals that are to be used for processing of ore are stored within this room. Since the room <br /> had been excavated out of solid rock having solid rock sills, ribs and back with low permeability, any <br /> spills will be retained until cleanup can be conducted. All chemicals are to be stored in their original <br /> containers, or in labeled reagent containers, in designated areas on the floor, on pallets off of the <br /> floor level, and with spill trays underneath the containers as applicable. Spill trays would contain <br /> any spillage created during normal daily drawings. Any spills will be cleaned up as soon as possible, <br /> for both safety of workers and for protection of the environment. As xanthate and many other <br /> reagents are solids, cleanup of any solids spills is done with a shovel, dustpan and broom. Liquids <br /> should receive additional attention to ensure that any release is retained within the mill room. <br /> 4 <br />