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SENT B'i~DUFFORD & BROWN <br />1-25-96 ~ ~'02AM ~ ~ 30389~69y <br />• <br />COLINA ORO MOLINO, INC. <br />(COM, INC.) <br />GOLD DILL Mn.L <br />PERMiT No. M-94-117 <br />JANUARY 23,1996 <br />303 832 8106# 6/ 7 <br />y <br />r ~1ClFif3fT ~ <br />l zs~y~ <br />REPORT TO THE MnvED LAND RECLAMATION BOARD ON TAII.INGS POND LINER <br />REPAIRS <br />Following are the key events and current status of the repair, vacuum testing and <br />independent certification of the tailings pond liner since COM, Inc.'s last report to the <br />Board dated December 14, 1995. <br />KEY EVENT9 <br />12!29195 COM, Ine.'s crew completed extrusion welding repairs of all liner tears <br />identified in inspections by the Division and COM, Inc. COM, Iac.'s crew <br />estimated that approximately 70-80 repairs were made, ranging in size from <br />several inches to pinholes. <br />12/31/95 - <br />1!8/96 Heavy 2-3 day snow storms at the beginning and end of this week, plus <br />high winds is the middle, left 1-2 feet of snow fall and drifts on the liner. <br />To avoid the risk of additional damage to the liner from shoveling, COM, <br />Inc. let the milder weather during the week of 1/8 melt most of the snow so <br />that the remainder could be swept off just prior to vacuum testing. <br />Week of <br />1/8/96 After investigating several parties, COM, Inc. determined that Colorado <br />Lining Co. of Pazker, Colorado was available and best qualified to perform <br />the vacuum testing and independent certification of the repairs. <br />1(16/96 After the heavy snows melted and were removed from the liner, Colorado <br />Lining Co. began vacuum testiag. Colorado Lining Co. determined that the <br />welds by COM, Inc.'s crew would not pass after testing 10.15 of them. <br />.ime,-t ~n~.vr <br />