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t At CCC, an Access database is currently used to hold the large volume of drill hole data. <br />There are a number of general comments with regards to the databases that need to be <br />addressed: <br />The Database Manager at CCC understands the use of the specific database <br />systems. He has constructed a series of tables that reflect the complexity of the <br />data at CCC (Figure 3.1). <br />Figure 3 -1: Table Relations in the Coal Database at CCC <br />• <br />• <br />Most of the drill holes in both the Colowyo and Collom areas have been included in <br />the database. A significant number of holes drilled in the mined out areas of East <br />Pit have been omitted. These should be added to complete the database, and <br />provide additional information for resource estimation and reconciliation purpose. <br />CCC is continuing a drilling campaign in 2005. These data are being added as they <br />become available. <br />Unknown information in the database is left as blank fields. TS was advised that <br />MineScape ignores blank values, eg when incremental plies are composited. <br />RIO <br />TINTO <br />BR3273: FINAL Version: 1 3 'I'rrlurtnl w,.'..• <br />eey <br />�s.r.a r.. <br />Oree'm <br />rA N2 <br />wYti <br />6Y <br />ptl Nrt <br />- <br />m�p <br />m�lbenw <br />o„ym <br />Iw...,.. <br />w� <br />.cnw <br />w <br />um <br />avm.o <br />e�aom <br />m�am <br />p yrt <br />� Iwmw <br />Fm.}pT <br />Liter <br />•'bJ.� <br />PmIq <br />� imA <br />wuvtl <br />Yi rA <br />5�r <br />, p1s.d <br />� r41Y <br />Rk .se m <br />roaN <br />I mplE <br />lwwn.. •. <br />Most of the drill holes in both the Colowyo and Collom areas have been included in <br />the database. A significant number of holes drilled in the mined out areas of East <br />Pit have been omitted. These should be added to complete the database, and <br />provide additional information for resource estimation and reconciliation purpose. <br />CCC is continuing a drilling campaign in 2005. These data are being added as they <br />become available. <br />Unknown information in the database is left as blank fields. TS was advised that <br />MineScape ignores blank values, eg when incremental plies are composited. <br />RIO <br />TINTO <br />BR3273: FINAL Version: 1 3 'I'rrlurtnl w,.'..• <br />