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• Oncrntion• <br />Ventilation was pre>roided for the ,cost end of the B Scam mine workings (Lottgwall <br />Panels \os. d thnwgh 13A) from 199j until ;\pril I?. 2001. The fan oprrated <br />eoniinuoush ?-1-hours per day. 36j da}•s per }car. <br />Uccommissiunine: <br />l he Lune Pine Ian ductwork yeas removed in June 20Ui. to facilitate installation of <br />temporary xals. Permanen[ bulkhead seals were constructed in the Ixmals in October <br />2001. Additional backfill material was also placed against the bulkheads to the portal <br />entrances at that time. Ian suvcutre. electrical switchgear. fencing, lxnvrrlines, <br />pnccerpoles, and pipeline were removed from the site in April 2002. <br />l~he following photographs show decommissioning in progress June 14, 2001. <br />~AW.?~c- <br />„~ ...,. <br />Fs <br />., <br />a . --- <br />,_.~~, o,. ~~ R,j. _,~ _ •. _,, <br />"w~ , ~ , <br />._ _ <br />_ 4 <br />I'!:,~:~~ ~~~ ', t'ourtcsy of CDMG. Jim Burnell, .lone Id, 2001. Ian motor housing <br />t iu~,ki:[c :,nt t. <br />• <br />