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0 ` <br /> carbon and nitrogen as decomposition products of CN- destruction. 0 <br /> After treatment and neutralization, the ore pulps and solutions <br /> are placed in the tailings storage pond adjacent to the pilot <br /> plant. Periodically, water samples from the tailings pond discharge <br /> pipe are taken and analyzed to insure that the discharged water <br /> meets or exceeds state and federal water quality standards. <br /> One 100 pound sealed steel drum of sodium cyanide <br /> is stored in the laboratory for testing purposes . The drum <br /> is inspected prior to each withdrawal of reagent . The drum <br /> is stored in a ventilated, well lit, well drained area of the <br /> laboratory under the visual security of the assigned laboratory <br /> technician. When received , cyanide is closely inspected for <br /> indications of problems in manufacturer quality control or damage <br /> in transport. If for any reason the cyanide appears to be unac- <br /> ceptable , delivery is refused and the cyanide is returned to <br /> the vendor for disposal. <br /> Normal personnel safety practices are followed with <br /> regard to respirator and safety goggle usage , housekeeping , <br /> and basic chemical usage training . Spills in the laboratory <br /> are cleaned up using standard, acceptable, industry procedures <br /> to minimize exposure to personnel and assure no threat to the <br /> environment. <br /> 4 <br />