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' - HEPWORTH - PAWLAK GEOTECHNICAL, INC. <br />REPORT OF FIELD NUCLEAR DENSITY TESTING <br />1~: ITEC Environmental Colorado, Inc. JOB NO. 298 187 <br />c/o McCulley, Frick & Gilman, Inc. DATE: 8/28/98 <br />' Attn: Jon Friedman DAILY REPORT #5 <br />4900 Pearl East Circle, Suite 300w PAGE 1 of 1 <br />Boulder, CO 80301 <br />~OJECT: Cash Mine Redevelopment near Gold Hill, CO (Raise existing tailings embankment) <br />~ERAL CONTRACTOR: ITEC Environmental Colorado, Inc. EARTHWORK CONTRACTOR: Len's Excavating, <br />TYPE AND NUMBER OF EARTH MOVING UNITS: (11 Doxer THICKNESS OF LIFT: Not Observed <br />& p OF COMPACTION UNITS: 111 Track Loader <br />OF <br />NUMBER OF PASSES: As Needed <br />~PACTION STANDARD : ASTM D-1557 IMODIFIEDI. 90%, t 2% OMC <br /> TEST LOCATION DEPTH LABORATORY FIELD % MIN Y° SOIL TYPE <br /> 0. OR <br />ELEV <br />MA%DAY <br />DENS er <br />OPT <br />MOIST % <br />DPI' <br />DENS cl <br />MDIST% COMP COMP <br />REQ. <br /> 19 130' N.E., 42' N.W. 8406 137.1 5.8 131.5 4.4 96 90 Silt Gravell Sand <br /> 20 115' N.E., 40' N.W. 8404 130.4 4.5 95 90 Silt Gravell Sand <br /> 21 65' N.E., 39' N.W. 8405 136.7 3.7 100 90 Silt Gravell Sand <br /> 22 45' N.E., 40' N.W. 8406 124.5 4.6 91 90 Silt Gravell Sand <br /> 23 20' N.W., 40' N.W. 8406 136.9 5.1 100 90 Silt Gravell Sand <br /> 24 40' N.W. of ower ole 8406 127.9 5.7 93 90 Silt Gravell Sand <br /> 25 30' S.W., 40' N.W. 8404 130.3 5.7 95 90 Silt Gravell Sand <br /> 26 50' S.W., 42' N.W. 6406 137.1 5.8 127.8 5.8 93 90 Silt Gravell Sand <br /> 27 80' S.W., 42' N.W. 8406 130.4 7.7 125.8 6.1 97 90 Silt Gravell Sand <br /> 28 110' S.W., 42' N.W. 8406 123.6 5.8 95 90 Silt Gravell Sand <br /> 'ULL TIME/PART TIME OBSERVATION <br />THIS REPORT PRESENTS OPINIONS FORMED AS A RESULT OF OUR OBSERVATIONS OF FILL PLACEMENT, WE HAVE RELIED ON THE <br />CONTRACTOR TO CONTINUE APPLYING THE RECOMMENDED COMPACTIE EFFORT AND MOISTURE TO FILL DURING THE TIMES WHEN OUR <br />BSERVER IS NOT OBSERVING OPERATIONS. <br />THE NUCLEAR DENSOMETER METHOD OF TESTING WAS USED IN SUBSTANTIAL ACCORDANCE WITH ASTM D2992 AND D3017 <br />RELIMINARY OBSERVATIONS AND/OR TEST RESULTS VERBALLY REPORTED T0: Len w/Can's Excavating ' <br /> PROGRESS REPORT: Tests were taken in the tailings pond embankment fill, all tests were referenced to the power pole. <br /> COPIES: <br />F1AVP rACCIr{~_IIT Q~P~ <br /> FIELD OBSERVER REVIEWED BY <br />