Laserfiche WebLink
Barr Engineering Company <br />4700 West 77th Street <br />BARR Minneapolis, MN 554354803 LOG OF BORING B-4 <br />Sheet 2 of 2 <br />Project: Proposed RPE E )pansion <br />Location: West Elk Mine, Somerset, <br />Client: Mountain Coal Company <br />CO <br />Barr Project Number: 06/261003 <br />STANDARD PENETRATION <br />NATURAL DRY <br />TEST DATA <br />DENSITY <br />T <br />w <br />a� <br />m <br />o <br />a6 <br />2 <br />N in blows /ft m <br />(pcf) it <br />MATERIAL DESCRIPTION <br />0 <br />a <br />0 <br />> <br />10 20 30 40 <br />105 115 125 <br />(ASTM D2488) <br />F - <br />SHEAR STRENGTH, ksf <br />Water Content, % <br />FU <br />O <br />E <br />N <br />Q, X UC A TV )K <br />WP WN WL <br />Mn <br />VS A VSR O <br />1 2 3 4 <br />20 40 60 <br />30 <br />SANDSTONE Medium brown sandstone with minor Gay and <br />coal dust seams. <br />6355 <br />83% <br />35 <br />35.0 <br />40 <br />45 <br />50 <br />55 <br />60 <br />Completion Depth: 35.0 <br />Remarks: <br />Date Boring Started- 6/22/09 <br />Date Boring Completed: 6/22/09 <br />SAMPLE TYPES <br />WATER LEVELS <br />Logged By. BSE <br />m Auger Cutting 'Shelby Tube <br />While Drilling: <br />Drilling Contractor: Haztech <br />Drilling Method: HSA/CORE <br />End of Drilling: <br />Northing: 402656.1 <br />® a <br />Eastin : 1450507.7 <br />Split Spoon Rock Core <br />hrs After Drilling: DRY <br />The stratification lines represent approbmate boundaries. The transition may be gradual. <br />