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i t <br />Although these welds cover the tears in the liner, they did not completely <br />seal them due to remaining pinholes. The probable cause was insufficient <br />heat generated by the welding gun available to COM, Inc.'s crew. <br />1/16/96 COM, Inc. decided that the best approach was to hire Colorado Lining Co. <br />to reweld all of the prior welds, and then vacuum test and certify them. <br />Colorado Lining Co. accepted the engagement and committed to begin <br />work as soon as weather allowed. <br />1/17-24/96 COM, Inc. and Colorado Lining Co. stayed in daily contact to schedule the <br />work as weather allowed. Extrusion welding cannot be done safely during <br />snow or rain or when wind blows snow across the liner surface to be <br />welded. These conditions precluded working on 1/17-I8, 1/20-21 and 1/23. <br />On 1/19, Colorado Lining Co.'s crew was able to weld for about one hour <br />before snow began to fall and work had to stop. On 1/22, snow began <br />falling when the crew arrived at the mine and no welding could be done. <br />On I/24, they were able to work about half a day. <br />CURRENT STATUS <br />Colorado Lining Co. has completed and tested 24 welds. Twenty-one <br />passed vacuum testing. Three failed and will be rewelded and retested. <br />Colorado Lining Co. estimates that 2-3 days of good weather will be <br />required to complete the welding and vacuum testing, which will enable <br />them to deliver a written certification of the repairs. Work is not scheduled <br />today, I/25, because of poor weather predicted as of late yesterday. Subject <br />to adverse weather, Colorado Lining Co. is scheduled to resume work on <br />1 /26. <br />Colorado Lining Co. has committed to COM, Inc. that its crew will remain <br />available to work as the weather allows until all repairs and vacuum testing <br />are completed so that they can issue the independent certification required <br />by the Board. <br /> <br />