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TURNPIKE RESERVOIR <br />ERIE, COLORADO <br />PROJECT NO: 1082030 DATE: APRIL 2008 <br /> LOG OF BORING B-7 APPROX. GROUND SURFACE ELEV. 4933.0 <br />RIG TYPE: CME-75 SHEET 1 OF 2 WATER DEPTH <br />FOREMAN: OG START DATE 312512008 WHILE DRILLING 8.0' <br />AUGER TYPE: 4-1/4" H.S.A. FINISH DATE 3/2 412 0 0 8 AFTER DRILLING N/A <br />SPT HAMMER: AUTOMATIC N 40° 06'07.6" - W 105° 02' 50.1" 24 HOUR N/A <br />SOIL DESCRIPTION 0 N Du Mc OO A-LIMITS •200 SWELL <br />TYPE (FEET) (BLOWSIF'T) (PSF) (%) (PCF) LL PI (%) PRESSURE %? 600 PSF <br /> <br />SILTY SAND WITH GRAVEL 1 <br />tan, grey, rust, medium dense to dense <br /> 2 <br /> _3 <br /> 4 li <br /> SS 6 10 6.1 <br /> 6 <br /> 7 <br />i <br /> 8 <br /> 9 <br />i <br /> SS 10 35 12.9 <br /> 11 <br /> 12 <br /> 13 <br /> 14 <br />interbedded cobbles with increased depths _ <br /> 55 <br />F 15 50 13.0 <br />4917 16 <br />CLAYSTONE/SANDSTONE ISILTSTONE <br />grey 17 <br />weathered, moderately hard to hard _ <br /> 18 <br /> 19 <br />'intermittent sandstone lens CS 20 50/3" 9000+ 14.5 <br /> 21 <br /> 22 <br /> 23 <br /> 24 <br />classified as LEAN CLAY with SAND - CL) SS 25 50/3" 14.1 32 11 78.2 <br />Continued on Sheet 1 of 2 <br />Earth Engineering Consultants