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NOTES: <br />1. EXPLORATORY BORINGS WERE DRILLED JUNE 28 THRU JULY <br />24, 2006 USING A TRUCK-MOUNTED CME 55 AND A CME 75 <br />DRILL RIG. BORINGS WERE DRILLED WITH 4.25-INCH I.D. <br />HOLLOW STEM AUGERS. <br />u <br />0 <br />i9 <br />s <br />c <br />a <br />c <br />3 <br />c <br />2. ALL EXPLORATORY LOCATIONS WERE LOCATED USING A <br />HANDHELD "GARMIN" GPS UNIT, AND ARE APPROXIMATELY <br />LOCATED. <br />3. LINES BETWEEN MATERIALS REPRESENT APPROXIMATE <br />BOUNDARIES BETWEEN TYPES AND TRANSITIONS MAY BE <br />GRADUAL. <br />4. GROUNDWATER LEVELS WERE MEASURED AT THE TIME OF <br />DRILLING ON THE DATES INDICATED. GROUNDWATER LEVELS <br />WILL FLUCTUATE SEASONALLY AND DUE TO SITE MINING AND <br />DEWATERING OPERATIONS. <br />STANDARD SPLIT SPOON SAMPLE. NUMBER INDICATES <br />24 THE BLOWS OF A 140 LB HAMMER FREE FALLING <br />30-INCHES, WHICH WERE REQUIRED TO DRIVE THE <br />SAMPLER 1-FOOT OR THE INDICATED INTERVAL. <br />7-18-06 WATER ENCOUNTERED DURING DRILLING <br />AND DATE MEASURED <br />WELL 200= % PASSING THE #200 SIEVE <br />SCREEN LL= LIQUID LIMIT, % <br />INTERVAL -L I I PI= PLASTICITY INDEX, % <br />0 <br />Z <br />3 <br />a <br />0 <br />0 <br />d? <br />N <br />M <br />N <br />N <br />0 <br />CL <br />a <br />M <br />C <br />TETRA TECH <br />www.tetratech.com <br />1900 S. Sunset Street, Ste. 1-F <br />Longmont, Colorado 80501 <br />PHONE: (303) 772-5282 FAX: (303) 772-7039 <br />Drawing Description <br />BOREHOLE <br />NOTES <br />LAFARGE WEST, INC. <br />Project No.: 133-23511-08005 <br />Date: 3-25-09 <br />Designed By: JD <br />FIGURE <br />4 <br />Copyright: Tetra Tech