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' ~ ~. WATER 2629 Redwing Rd. Suite 200, Fort Collins, Colorado 80526 ~;~ (303)226-3535 ~,~ "" WASTE fax (303) 226-6475 iI & LAND i~ December 14, 1993 WWL N390 VIA FACSIMILE ' State of Colorado Division of Minerals and Geology 1313 Sherman Street, Room 215 ' Denver, CO 80203 Attention: Larry Oehler 1 Environmental Protection Specialist Subject: Battle Mountain Resources Inc. -San Luis Mine ' Weekly Construction Activity Update - 12/7/93 through 12/9/93 Dear Larry, ' Contained in this letter is information concerning WWL's observations of construction activities and our review of current construction quality assurance testing procedures and ' results. This information was collected over the period from December 7 through December 9, 1993. ' CONSTRUCTION ACTIVITIES On the 5'" of December (Sunday) no work was done at the site. On December 6'"liner cover material was placed, but no embankment material was placed, as BMRI workers did not haul any material from the pit or borrow area. Weather conditions were dry and relatively warm during construction activities. The construction activities during this period are outlined below. ' • Liner Cover All of the liner cover material has been placed. All of the small (less than 1 acre) areas which ' had not been covered at the end of the last work period have now been covered with sufficient material. ' • Embankment Construction At the end of this work period, approximately 80 percent of the 8603 (approximate elevation) ' lift had been placed. The night shift on the 8'" was to finish placing this lift and place a majority of the final lift 18605). As substantial borrow material of good quality •emained at the pit and there appeared to be no problems with achieving densities. I left the site for Fort Collins on Wednesday night (the 8'"). ' Consulting Enginrrrs and Scientists