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Dear Mr. Erickson: <br />Bulkhead location <br />II I llI lI lIll Il l III <br />999 <br />- <br />N4R1 9 200/ <br />4TIVZ4VS/DE GOLD CORPORATION o M F 0 1fi <br />AN ECHO DAY COMPANY era &G %9Y <br />P.O. Box 177 • Silverton, CO 81433 r , <br />Phone (970) 387 -5533 • Fax (970) 387 -5310 L. <br />March 8, 2001 r a� e/l�-ig7 <br />lie CiEiv E gc4 <br />Wally Erickson, Reclamation Specialist 4AR 15 20 <br />• <br />Department of Natural Resources D ivisio n o' 01 <br />Division of Minerals and Geologyu Mineral and <br />G eolog y <br />Durango Field Office <br />701 Camino del Rio, Room 125 <br />Durango, CO 81301 <br />RE: File No. M -77 -378, TR -22 and TR -23 <br />Terry Tunnel near surface bulkhead <br />1 truction Certification Report <br />This letter report is to provide certification that construction of the Terry Tunnel near- <br />surface bulkhead meets or exceeds design criteria. Submittal of a construction <br />certification report was committed to by SGC in TR -22. <br />Pre -pour inspections were conducted by DMG on September 26, 2000 and the design <br />engineer, John F. Abel, Jr. P.E. on September 27, 2000 (letter report attached). No <br />deficiencies were found in either pre -pour inspection. <br />The approximate center of the bulkhead, approximately five feet above the sill, on the air - <br />side face of the bulkhead is a point with coordinates of 12,998.00 N, 23,650.00 E at an <br />elevation of 11,521 feet. These coordinates are based on a coordinate system with USLM <br />Moultrie being at coordinates 11,964.00 N, 20,000.00 E at an elevation of 12,728.73 feet. <br />The construction stages for certification are listed below. <br />