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o uesign or a cero-aiscnarge racimy ensures all waxer ana waste marenais usea in me mineral extracton <br /> process are recycled and no water is discharged into the environment. <br /> o Constructing a double-lined containment pond down-gradient of the process facility that would capture <br /> accidental spillage. <br /> •CJK's design attributes virtually eliminate the threat to aquatic life. <br /> •While a cyanide concentration of less than 50 ppm is required for compliance with the International Cyanide <br /> Management Code to protect wildlife,CJK Milling will achieve cyanide concentrations of less than 10 ppm in <br /> their tailings facility. <br /> •CJK will use a process called"Cyanidation",or cyanide leaching,the dominant gold extraction technology <br /> since the 1970s. In this process sodium cyanide, in a dilute solution of ranging from 100 ppm to 500 ppm or <br /> 0.01%to 0.05%cyanide,is used to selectively dissolve gold from ore. <br /> •Following discharge,the residual cyanide is rapidly diluted and destroyed through natural processes,such as <br /> oxidation and ultra-violet-catalysis(by sunlight). <br /> •CJK will take precautionary steps to protect workers from cyanide exposure including limiting worker exposure <br /> through automation,protective clothing and respirators. <br /> Environmental Benefits <br /> •Removes up to 500,000 tons of acid-generating mine waste from California Gulch,improving water quality in <br /> the Arkansas River and resulting in cleaner surface and groundwater. <br /> •Restores areas where mine waste was removed to natural,pre-mining conditions improving and expanding <br /> wildlife habitat. <br /> Economic Benefits <br /> •Creates high paying jobs at the mill and multiple contracting opportunities to support CJK operations. <br /> •Personal and property tax revenues to the State and Lake County. <br /> •Increased local commerce,local service contractors, retail outlets. <br /> Cyanide is used safely in mining and other industries. <br /> •The mill was built in 1989 and has had an active permit since 1990 to process 70,000 tons of material per <br /> year. Homes were built around the mill years after it was permitted.CJK is now requesting a state permit <br /> amendment allowing the company to implement its mine waste cleanup.Cyanide has been used effectively and <br /> safely for over 125 years for gold and silver recovery in the mining industry. <br /> •With proper management and control of its use,cyanide has been and continues to be used safely and <br /> without harm to humans or the environment. <br /> •Cyanide is used in many everyday applications including production of plastics,adhesives,cosmetics and <br /> pharmaceuticals. <br /> •The EPA cited a study of the environmental laws of mining states,concluding that they work in tandem with <br /> federal environmental laws and regulations to ensure the proper design,operation,management of mining <br /> sites.CJK will adhere to all local,state and national regulation on cyanide use and processing. <br /> Permit Number* <br /> Enter valid letter and then numbers,for example M1977999, M1999777UG or C1981201. <br /> M1990057 <br /> Permitting Action Type <br /> Select revision type or leave blank if comment pertains to a new permit application or NOI <br /> Permit Type <br /> County <br /> Lake <br /> Enter one county only <br /> Site Name <br /> Perm ittee/Operator Name <br />