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- Barr Engineering Company LOG OF PIEZOMETER <br />(Reference Boring No. B -1) <br />BARR <br />Sheet 2 of 3 <br />Location: West Elk Mine, Somerset, <br />client: Mountain Coal Company <br />CO <br />Barr Project Number: 06/261003 <br />Surface Elevation: 6192.24 <br />Top of Casing Elevation: <br />STRATA <br />PIEZOMETER <br />= <br />O <br />m <br />DETAILS <br />w <br />PIEZOMETER CONSTRUCTION DETAILS <br />DESCRIPTION <br />o v g <br />o <br />J <br />N <br />w <br />30 <br />x x <br />SILTSTONE <br />Medium -dark red and 35 <br />x x <br />brown siltstone and <br />x x <br />altered shale. <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />40 <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />45 <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />50 <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />55 <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />60 <br />x x <br />x x <br />x x <br />x x <br />x x <br />x x <br />SANDSTONE Grey, <br />tan, red/dark red and <br />white sandstone <br />interbedded with <br />Completion Depth: 75.0 <br />Date Started: 6/25/09 <br />LEGEND <br />Date Completed: 6/25/09 <br />FILTER PACK <br />WATER LEVELS <br />Logged By. BWL <br />Drilling Contractor: Haztech <br />® BENTONITE <br />WATER LEVEL: DRY ft <br />Drilling Method: HSA/CORE <br />® CEMENT GROUT <br />DATE: 09 -21 -2009 <br />TIME: 00:00 <br />Coordinates <br />North: 403263.5 <br />® CUTTINGS / BACKFILL <br />East: 1450468.5 <br />0 <br />u <br />• <br />The stratification lines represent approbmate boundaries. The transition may be gradual. <br />