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1111111111111111111 <br /> STATE OF COLOMDO <br /> DIVISION OF MINERALS AND GEOLOGY <br /> Department of Natural Resources <br /> 1313 Sherman St, Room 215 <br /> Denver,Colorado 80203 <br /> Phone (303)866-3567 <br /> FAX (303)832-8106 <br /> DEPARTMENT OF <br /> April 25, 1996 NATURAL <br /> M Larry Perino RESOURCES <br /> unnyside Gold Corporation Roy Romer <br /> Governor <br /> P.O. Box 177 <br /> S i lverton CO 81433 Eames 5 Lochhead <br /> i Executive Director <br /> �t -- io "— f , - Michael B Long <br /> n._ �2e ort for American Division Director <br /> RE: Construction Certificatio. .,. , _p_.__, <br /> Tunnel Bulkhead, Sunnyside Mine, File No.,,,X-77-378 <br /> Dear Mr. Perino: <br /> This letter is to serve as notification of the Division's receipt and <br /> acceptance of the Construction Certification Report for the American <br /> Tunnel Bulkhead. The only remaining element of approved technical <br /> revision TR-14 that must be satisfied prior to closure of the valve on <br /> the American Tunnel Bulkhead is spelled out in Commitment #3 of the <br /> technical revision approval. Commitment #3 requires Sunnyside Gold <br /> Corporation (SGC) to provide a detailed estimate of the costs that may <br /> be incurred by the State to replace the bulkheads if unforseen problems <br /> were to develop, and further requires SGC to post bond, in an amount <br /> approved by the Division, to cover the contingency of bulkhead <br /> replacement. <br /> As you are aware, closing of the bulkhead valves and flooding of the <br /> mine triggers requirements to: <br /> 1. conduct annual inspections of the Terry Tunnel Bulkhead, and <br /> quarterly inspections of the Terry Tunnel portal, if accessible; <br /> 2 . Inspect the American Tunnel weekly for one month, then monthly for <br /> 5 months, then quarterly; <br /> 3 . Sample the mine pool at the American Tunnel at least annually. <br /> Also, the spring and seep study required by TR-14 will continue. <br /> If you have any questions, please contact me. <br /> Sincerely, <br /> C. Sorenson <br /> Reclamation Specialist <br /> cc: Bob Shukle, WQCD C:\WP51\SGCll <br />