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<br />~II II~II~II~II~~ II~ <br />sss <br />COLINA ORO MOLINO, INC. <br />(COM, INC.) <br />GOLD HILL MILL <br />PERMIT No. M-94-117 <br />JANUARY 2$, 1996 <br /> <br />~ ~Kµ~r3ir f <br />/ 12S'~~j6 <br />REPORT TO THE MINED LAND RECLAMATION BOARD ON TAILINGS 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 EVENTS <br />12/29/95 COM, Inc.'s crew completed extrusion welding repairs of all liner tears <br />identified in inspections by the Division and COM, Inc. COM, Inc.'s crew <br />estimated that approximately 70-80 repairs were made, ranging in size from <br />several inches to pinholes. <br />12/3l/95 - <br />l/8/96 Heavy 2-3 day snow storms at the beginning and end of this week, plus <br />high winds in the middle, left 1-2 feet of snow fall and drills 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 Parker, 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 testing. Colorado Lining Co. determined that the <br />welds by COM, Inc.'s crew would not pass after testing l0- l5 of them. <br />eeee~~i mi is <br />